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Emeric Brun46591952012-05-18 15:47:34 +02002/*
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02003 * SSL/TLS transport layer over SOCK_STREAM sockets
Emeric Brun46591952012-05-18 15:47:34 +02004 *
5 * Copyright (C) 2012 EXCELIANCE, Emeric Brun <ebrun@exceliance.fr>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 *
Willy Tarreau69845df2012-09-10 09:43:09 +020012 * Acknowledgement:
13 * We'd like to specially thank the Stud project authors for a very clean
14 * and well documented code which helped us understand how the OpenSSL API
15 * ought to be used in non-blocking mode. This is one difficult part which
16 * is not easy to get from the OpenSSL doc, and reading the Stud code made
17 * it much more obvious than the examples in the OpenSSL package. Keep up
18 * the good works, guys !
19 *
20 * Stud is an extremely efficient and scalable SSL/TLS proxy which combines
21 * particularly well with haproxy. For more info about this project, visit :
22 * https://github.com/bumptech/stud
23 *
Emeric Brun46591952012-05-18 15:47:34 +020024 */
25
Willy Tarreau8d164dc2019-05-10 09:35:00 +020026/* Note: do NOT include openssl/xxx.h here, do it in openssl-compat.h */
Emeric Brun46591952012-05-18 15:47:34 +020027#define _GNU_SOURCE
Emeric Brunfc0421f2012-09-07 17:30:07 +020028#include <ctype.h>
29#include <dirent.h>
Emeric Brun46591952012-05-18 15:47:34 +020030#include <errno.h>
31#include <fcntl.h>
32#include <stdio.h>
33#include <stdlib.h>
Emeric Brunfc0421f2012-09-07 17:30:07 +020034#include <string.h>
35#include <unistd.h>
Emeric Brun46591952012-05-18 15:47:34 +020036
37#include <sys/socket.h>
38#include <sys/stat.h>
39#include <sys/types.h>
Christopher Faulet31af49d2015-06-09 17:29:50 +020040#include <netdb.h>
Emeric Brun46591952012-05-18 15:47:34 +020041#include <netinet/tcp.h>
42
Willy Tarreaub2551052020-06-09 09:07:15 +020043#include <import/ebpttree.h>
44#include <import/ebsttree.h>
Christopher Faulet31af49d2015-06-09 17:29:50 +020045#include <import/lru.h>
46#include <import/xxhash.h>
47
Willy Tarreaub2551052020-06-09 09:07:15 +020048#include <haproxy/api.h>
49#include <haproxy/arg.h>
50#include <haproxy/base64.h>
Willy Tarreauf1d32c42020-06-04 21:07:02 +020051#include <haproxy/channel.h>
Willy Tarreauc13ed532020-06-02 10:22:45 +020052#include <haproxy/chunk.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020053#include <haproxy/cli.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020054#include <haproxy/connection.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020055#include <haproxy/dynbuf.h>
Willy Tarreau8d366972020-05-27 16:10:29 +020056#include <haproxy/errors.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020057#include <haproxy/fd.h>
58#include <haproxy/freq_ctr.h>
Willy Tarreau762d7a52020-06-04 11:23:07 +020059#include <haproxy/frontend.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020060#include <haproxy/global.h>
Willy Tarreauc761f842020-06-04 11:40:28 +020061#include <haproxy/http_rules.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020062#include <haproxy/log.h>
Willy Tarreau6019fab2020-05-27 16:26:00 +020063#include <haproxy/openssl-compat.h>
Willy Tarreau225a90a2020-06-04 15:06:28 +020064#include <haproxy/pattern-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020065#include <haproxy/proto_tcp.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020066#include <haproxy/proxy.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020067#include <haproxy/server.h>
Willy Tarreau334099c2020-06-03 18:38:48 +020068#include <haproxy/shctx.h>
Willy Tarreau47d7f902020-06-04 14:25:47 +020069#include <haproxy/ssl_ckch.h>
Willy Tarreau52d88722020-06-04 14:29:23 +020070#include <haproxy/ssl_crtlist.h>
Willy Tarreau209108d2020-06-04 20:30:20 +020071#include <haproxy/ssl_sock.h>
Willy Tarreaub2bd8652020-06-04 14:21:22 +020072#include <haproxy/ssl_utils.h>
William Lallemand17d0caa2022-03-16 17:48:19 +010073#include <haproxy/sample.h>
Amaury Denoyelle9963fa72020-11-03 17:10:00 +010074#include <haproxy/stats.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020075#include <haproxy/stream-t.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020076#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020077#include <haproxy/task.h>
Willy Tarreauc2f7c582020-06-02 18:15:32 +020078#include <haproxy/ticks.h>
Willy Tarreau92b4f132020-06-01 11:05:15 +020079#include <haproxy/time.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020080#include <haproxy/tools.h>
Willy Tarreaua1718922020-06-04 16:25:31 +020081#include <haproxy/vars.h>
Frédéric Lécailleec216522020-11-23 14:33:30 +010082#include <haproxy/xprt_quic.h>
Emeric Brun46591952012-05-18 15:47:34 +020083
Emeric Brun46591952012-05-18 15:47:34 +020084
Willy Tarreau9356dac2019-05-10 09:22:53 +020085/* ***** READ THIS before adding code here! *****
86 *
87 * Due to API incompatibilities between multiple OpenSSL versions and their
88 * derivatives, it's often tempting to add macros to (re-)define certain
89 * symbols. Please do not do this here, and do it in common/openssl-compat.h
90 * exclusively so that the whole code consistently uses the same macros.
91 *
92 * Whenever possible if a macro is missing in certain versions, it's better
93 * to conditionally define it in openssl-compat.h than using lots of ifdefs.
94 */
95
Willy Tarreau71b734c2014-01-28 15:19:44 +010096int sslconns = 0;
97int totalsslconns = 0;
Emeric Brunece0c332017-12-06 13:51:49 +010098int nb_engines = 0;
Emeric Brune1f38db2012-09-03 20:36:47 +020099
William Lallemande0f3fd52020-02-25 14:53:06 +0100100static struct eb_root cert_issuer_tree = EB_ROOT; /* issuers tree from "issuers-chain-path" */
101
William Lallemand7fd8b452020-05-07 15:20:43 +0200102struct global_ssl global_ssl = {
Willy Tarreauef934602016-12-22 23:12:01 +0100103#ifdef LISTEN_DEFAULT_CIPHERS
104 .listen_default_ciphers = LISTEN_DEFAULT_CIPHERS,
105#endif
106#ifdef CONNECT_DEFAULT_CIPHERS
107 .connect_default_ciphers = CONNECT_DEFAULT_CIPHERS,
108#endif
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +0500109#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +0200110 .listen_default_ciphersuites = LISTEN_DEFAULT_CIPHERSUITES,
Dirkjan Bussink415150f2018-09-14 11:14:21 +0200111 .connect_default_ciphersuites = CONNECT_DEFAULT_CIPHERSUITES,
112#endif
Willy Tarreauef934602016-12-22 23:12:01 +0100113 .listen_default_ssloptions = BC_SSL_O_NONE,
114 .connect_default_ssloptions = SRV_SSL_O_NONE,
115
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +0200116 .listen_default_sslmethods.flags = MC_SSL_O_ALL,
117 .listen_default_sslmethods.min = CONF_TLSV_NONE,
118 .listen_default_sslmethods.max = CONF_TLSV_NONE,
119 .connect_default_sslmethods.flags = MC_SSL_O_ALL,
120 .connect_default_sslmethods.min = CONF_TLSV_NONE,
121 .connect_default_sslmethods.max = CONF_TLSV_NONE,
122
Willy Tarreauef934602016-12-22 23:12:01 +0100123#ifdef DEFAULT_SSL_MAX_RECORD
124 .max_record = DEFAULT_SSL_MAX_RECORD,
125#endif
126 .default_dh_param = SSL_DEFAULT_DH_PARAM,
127 .ctx_cache = DEFAULT_SSL_CTX_CACHE,
Thierry FOURNIER5bf77322017-02-25 12:45:22 +0100128 .capture_cipherlist = 0,
William Lallemand3af48e72020-02-03 17:15:52 +0100129 .extra_files = SSL_GF_ALL,
William Lallemand8e8581e2020-10-20 17:36:46 +0200130 .extra_files_noext = 0,
William Lallemandca5cf0a2021-06-09 16:46:12 +0200131#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200132 .keylog = 0
133#endif
Willy Tarreauef934602016-12-22 23:12:01 +0100134};
135
Olivier Houcharda8955d52019-04-07 22:00:38 +0200136static BIO_METHOD *ha_meth;
137
Olivier Houchard66ab4982019-02-26 18:37:15 +0100138DECLARE_STATIC_POOL(ssl_sock_ctx_pool, "ssl_sock_ctx_pool", sizeof(struct ssl_sock_ctx));
139
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100140/* ssl stats module */
141enum {
Amaury Denoyelled0447a72020-11-03 17:10:02 +0100142 SSL_ST_SESS,
143 SSL_ST_REUSED_SESS,
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100144 SSL_ST_FAILED_HANDSHAKE,
Amaury Denoyellefbc33772020-11-03 17:10:01 +0100145
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100146 SSL_ST_STATS_COUNT /* must be the last member of the enum */
147};
148
149static struct name_desc ssl_stats[] = {
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100150 [SSL_ST_SESS] = { .name = "ssl_sess",
151 .desc = "Total number of ssl sessions established" },
152 [SSL_ST_REUSED_SESS] = { .name = "ssl_reused_sess",
153 .desc = "Total number of ssl sessions reused" },
154 [SSL_ST_FAILED_HANDSHAKE] = { .name = "ssl_failed_handshake",
155 .desc = "Total number of failed handshake" },
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100156};
157
158static struct ssl_counters {
Amaury Denoyelled0447a72020-11-03 17:10:02 +0100159 long long sess;
160 long long reused_sess;
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100161 long long failed_handshake;
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100162} ssl_counters;
163
164static void ssl_fill_stats(void *data, struct field *stats)
165{
Amaury Denoyellefbc33772020-11-03 17:10:01 +0100166 struct ssl_counters *counters = data;
167
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100168 stats[SSL_ST_SESS] = mkf_u64(FN_COUNTER, counters->sess);
169 stats[SSL_ST_REUSED_SESS] = mkf_u64(FN_COUNTER, counters->reused_sess);
170 stats[SSL_ST_FAILED_HANDSHAKE] = mkf_u64(FN_COUNTER, counters->failed_handshake);
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100171}
172
173static struct stats_module ssl_stats_module = {
174 .name = "ssl",
175 .fill_stats = ssl_fill_stats,
176 .stats = ssl_stats,
177 .stats_count = SSL_ST_STATS_COUNT,
178 .counters = &ssl_counters,
179 .counters_size = sizeof(ssl_counters),
180 .domain_flags = MK_STATS_PROXY_DOMAIN(STATS_PX_CAP_FE|STATS_PX_CAP_LI|STATS_PX_CAP_BE|STATS_PX_CAP_SRV),
181 .clearable = 1,
182};
183
184INITCALL1(STG_REGISTER, stats_register_module, &ssl_stats_module);
185
Willy Tarreau691d5032021-01-20 14:55:01 +0100186/* ssl_sock_io_cb is exported to see it resolved in "show fd" */
Willy Tarreau144f84a2021-03-02 16:09:26 +0100187struct task *ssl_sock_io_cb(struct task *, void *, unsigned int);
Olivier Houchard000694c2019-05-23 14:45:12 +0200188static int ssl_sock_handshake(struct connection *conn, unsigned int flag);
Olivier Houchardea8dd942019-05-20 14:02:16 +0200189
Olivier Houcharda8955d52019-04-07 22:00:38 +0200190/* Methods to implement OpenSSL BIO */
191static int ha_ssl_write(BIO *h, const char *buf, int num)
192{
193 struct buffer tmpbuf;
194 struct ssl_sock_ctx *ctx;
195 int ret;
196
197 ctx = BIO_get_data(h);
198 tmpbuf.size = num;
199 tmpbuf.area = (void *)(uintptr_t)buf;
200 tmpbuf.data = num;
201 tmpbuf.head = 0;
202 ret = ctx->xprt->snd_buf(ctx->conn, ctx->xprt_ctx, &tmpbuf, num, 0);
Olivier Houchardb51937e2019-05-01 17:24:36 +0200203 if (ret == 0 && !(ctx->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houcharda8955d52019-04-07 22:00:38 +0200204 BIO_set_retry_write(h);
Olivier Houcharda28454e2019-04-24 12:04:36 +0200205 ret = -1;
Olivier Houchardb51937e2019-05-01 17:24:36 +0200206 } else if (ret == 0)
207 BIO_clear_retry_flags(h);
Olivier Houcharda8955d52019-04-07 22:00:38 +0200208 return ret;
209}
210
211static int ha_ssl_gets(BIO *h, char *buf, int size)
212{
213
214 return 0;
215}
216
217static int ha_ssl_puts(BIO *h, const char *str)
218{
219
220 return ha_ssl_write(h, str, strlen(str));
221}
222
223static int ha_ssl_read(BIO *h, char *buf, int size)
224{
225 struct buffer tmpbuf;
226 struct ssl_sock_ctx *ctx;
227 int ret;
228
229 ctx = BIO_get_data(h);
230 tmpbuf.size = size;
231 tmpbuf.area = buf;
232 tmpbuf.data = 0;
233 tmpbuf.head = 0;
234 ret = ctx->xprt->rcv_buf(ctx->conn, ctx->xprt_ctx, &tmpbuf, size, 0);
Olivier Houchardb51937e2019-05-01 17:24:36 +0200235 if (ret == 0 && !(ctx->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH))) {
Olivier Houcharda8955d52019-04-07 22:00:38 +0200236 BIO_set_retry_read(h);
Olivier Houcharda28454e2019-04-24 12:04:36 +0200237 ret = -1;
Olivier Houchardb51937e2019-05-01 17:24:36 +0200238 } else if (ret == 0)
239 BIO_clear_retry_flags(h);
Olivier Houcharda8955d52019-04-07 22:00:38 +0200240
241 return ret;
242}
243
244static long ha_ssl_ctrl(BIO *h, int cmd, long arg1, void *arg2)
245{
246 int ret = 0;
247 switch (cmd) {
248 case BIO_CTRL_DUP:
249 case BIO_CTRL_FLUSH:
250 ret = 1;
251 break;
252 }
253 return ret;
254}
255
256static int ha_ssl_new(BIO *h)
257{
258 BIO_set_init(h, 1);
259 BIO_set_data(h, NULL);
260 BIO_clear_flags(h, ~0);
261 return 1;
262}
263
264static int ha_ssl_free(BIO *data)
265{
266
267 return 1;
268}
269
270
Willy Tarreau5db847a2019-05-09 14:13:35 +0200271#if defined(USE_THREAD) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Christopher Faulet9dcf9b62017-11-13 10:34:01 +0100272
Emeric Brun821bb9b2017-06-15 16:37:39 +0200273static HA_RWLOCK_T *ssl_rwlocks;
274
275
276unsigned long ssl_id_function(void)
277{
278 return (unsigned long)tid;
279}
280
281void ssl_locking_function(int mode, int n, const char * file, int line)
282{
283 if (mode & CRYPTO_LOCK) {
284 if (mode & CRYPTO_READ)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100285 HA_RWLOCK_RDLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200286 else
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100287 HA_RWLOCK_WRLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200288 }
289 else {
290 if (mode & CRYPTO_READ)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100291 HA_RWLOCK_RDUNLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200292 else
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100293 HA_RWLOCK_WRUNLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200294 }
295}
296
297static int ssl_locking_init(void)
298{
299 int i;
300
301 ssl_rwlocks = malloc(sizeof(HA_RWLOCK_T)*CRYPTO_num_locks());
302 if (!ssl_rwlocks)
303 return -1;
304
305 for (i = 0 ; i < CRYPTO_num_locks() ; i++)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100306 HA_RWLOCK_INIT(&ssl_rwlocks[i]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200307
308 CRYPTO_set_id_callback(ssl_id_function);
309 CRYPTO_set_locking_callback(ssl_locking_function);
310
311 return 0;
312}
Christopher Faulet9dcf9b62017-11-13 10:34:01 +0100313
Emeric Brun821bb9b2017-06-15 16:37:39 +0200314#endif
315
Willy Tarreauaf613e82020-06-05 08:40:51 +0200316__decl_thread(HA_SPINLOCK_T ckch_lock);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200317
William Lallemandbc6ca7c2019-10-29 23:48:19 +0100318
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200319/*
Emmanuel Hocdetb270e812019-11-21 19:09:31 +0100320 * deduplicate cafile (and crlfile)
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200321 */
322struct cafile_entry {
323 X509_STORE *ca_store;
Emmanuel Hocdet129d3282019-10-24 18:08:51 +0200324 STACK_OF(X509_NAME) *ca_list;
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200325 struct ebmb_node node;
326 char path[0];
327};
328
329static struct eb_root cafile_tree = EB_ROOT_UNIQUE;
330
331static X509_STORE* ssl_store_get0_locations_file(char *path)
332{
333 struct ebmb_node *eb;
334
335 eb = ebst_lookup(&cafile_tree, path);
336 if (eb) {
337 struct cafile_entry *ca_e;
338 ca_e = ebmb_entry(eb, struct cafile_entry, node);
339 return ca_e->ca_store;
340 }
341 return NULL;
342}
343
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100344int ssl_store_load_locations_file(char *path, int create_if_none)
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200345{
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100346 X509_STORE *store = ssl_store_get0_locations_file(path);
347
348 /* If this function is called by the CLI, we should not call the
349 * X509_STORE_load_locations function because it performs forbidden disk
350 * accesses. */
351 if (!store && create_if_none) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200352 struct cafile_entry *ca_e;
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100353 store = X509_STORE_new();
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200354 if (X509_STORE_load_locations(store, path, NULL)) {
355 int pathlen;
356 pathlen = strlen(path);
357 ca_e = calloc(1, sizeof(*ca_e) + pathlen + 1);
358 if (ca_e) {
359 memcpy(ca_e->path, path, pathlen + 1);
360 ca_e->ca_store = store;
361 ebst_insert(&cafile_tree, &ca_e->node);
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200362 }
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100363 } else {
364 X509_STORE_free(store);
365 store = NULL;
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200366 }
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200367 }
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100368 return (store != NULL);
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200369}
370
371/* mimic what X509_STORE_load_locations do with store_ctx */
372static int ssl_set_cert_crl_file(X509_STORE *store_ctx, char *path)
373{
374 X509_STORE *store;
375 store = ssl_store_get0_locations_file(path);
376 if (store_ctx && store) {
377 int i;
378 X509_OBJECT *obj;
379 STACK_OF(X509_OBJECT) *objs = X509_STORE_get0_objects(store);
380 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
381 obj = sk_X509_OBJECT_value(objs, i);
382 switch (X509_OBJECT_get_type(obj)) {
383 case X509_LU_X509:
384 X509_STORE_add_cert(store_ctx, X509_OBJECT_get0_X509(obj));
385 break;
386 case X509_LU_CRL:
387 X509_STORE_add_crl(store_ctx, X509_OBJECT_get0_X509_CRL(obj));
388 break;
389 default:
390 break;
391 }
392 }
393 return 1;
394 }
395 return 0;
396}
397
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +0500398/* SSL_CTX_load_verify_locations substitute, internally call X509_STORE_load_locations */
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200399static int ssl_set_verify_locations_file(SSL_CTX *ctx, char *path)
400{
401 X509_STORE *store_ctx = SSL_CTX_get_cert_store(ctx);
402 return ssl_set_cert_crl_file(store_ctx, path);
403}
404
Emmanuel Hocdet129d3282019-10-24 18:08:51 +0200405/*
406 Extract CA_list from CA_file already in tree.
407 Duplicate ca_name is tracking with ebtree. It's simplify openssl compatibility.
408 Return a shared ca_list: SSL_dup_CA_list must be used before set it on SSL_CTX.
409*/
410static STACK_OF(X509_NAME)* ssl_get_client_ca_file(char *path)
411{
412 struct ebmb_node *eb;
413 struct cafile_entry *ca_e;
414
415 eb = ebst_lookup(&cafile_tree, path);
416 if (!eb)
417 return NULL;
418 ca_e = ebmb_entry(eb, struct cafile_entry, node);
419
420 if (ca_e->ca_list == NULL) {
421 int i;
422 unsigned long key;
423 struct eb_root ca_name_tree = EB_ROOT;
424 struct eb64_node *node, *back;
425 struct {
426 struct eb64_node node;
427 X509_NAME *xname;
428 } *ca_name;
429 STACK_OF(X509_OBJECT) *objs;
430 STACK_OF(X509_NAME) *skn;
431 X509 *x;
432 X509_NAME *xn;
433
434 skn = sk_X509_NAME_new_null();
435 /* take x509 from cafile_tree */
436 objs = X509_STORE_get0_objects(ca_e->ca_store);
437 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
438 x = X509_OBJECT_get0_X509(sk_X509_OBJECT_value(objs, i));
439 if (!x)
440 continue;
441 xn = X509_get_subject_name(x);
442 if (!xn)
443 continue;
444 /* Check for duplicates. */
445 key = X509_NAME_hash(xn);
446 for (node = eb64_lookup(&ca_name_tree, key), ca_name = NULL;
447 node && ca_name == NULL;
448 node = eb64_next(node)) {
449 ca_name = container_of(node, typeof(*ca_name), node);
450 if (X509_NAME_cmp(xn, ca_name->xname) != 0)
451 ca_name = NULL;
452 }
453 /* find a duplicate */
454 if (ca_name)
455 continue;
456 ca_name = calloc(1, sizeof *ca_name);
457 xn = X509_NAME_dup(xn);
458 if (!ca_name ||
459 !xn ||
460 !sk_X509_NAME_push(skn, xn)) {
461 free(ca_name);
462 X509_NAME_free(xn);
463 sk_X509_NAME_pop_free(skn, X509_NAME_free);
464 sk_X509_NAME_free(skn);
465 skn = NULL;
466 break;
467 }
468 ca_name->node.key = key;
469 ca_name->xname = xn;
470 eb64_insert(&ca_name_tree, &ca_name->node);
471 }
472 ca_e->ca_list = skn;
473 /* remove temporary ca_name tree */
474 node = eb64_first(&ca_name_tree);
475 while (node) {
476 ca_name = container_of(node, typeof(*ca_name), node);
477 back = eb64_next(node);
478 eb64_delete(node);
479 free(ca_name);
480 node = back;
481 }
482 }
483 return ca_e->ca_list;
484}
485
Willy Tarreauff882702021-04-10 17:23:00 +0200486struct pool_head *pool_head_ssl_capture __read_mostly = NULL;
William Lallemand15e16942020-05-15 00:25:08 +0200487int ssl_capture_ptr_index = -1;
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +0100488int ssl_app_data_index = -1;
Willy Tarreauef934602016-12-22 23:12:01 +0100489
William Lallemandca5cf0a2021-06-09 16:46:12 +0200490#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200491int ssl_keylog_index = -1;
Willy Tarreauff882702021-04-10 17:23:00 +0200492struct pool_head *pool_head_ssl_keylog __read_mostly = NULL;
493struct pool_head *pool_head_ssl_keylog_str __read_mostly = NULL;
William Lallemand7d42ef52020-07-06 11:41:30 +0200494#endif
495
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200496#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
497struct list tlskeys_reference = LIST_HEAD_INIT(tlskeys_reference);
498#endif
499
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200500#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200501unsigned int openssl_engines_initialized;
Grant Zhang872f9c22017-01-21 01:10:18 +0000502struct list openssl_engines = LIST_HEAD_INIT(openssl_engines);
503struct ssl_engine_list {
504 struct list list;
505 ENGINE *e;
506};
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200507#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000508
Remi Gacogne8de54152014-07-15 11:36:40 +0200509#ifndef OPENSSL_NO_DH
Remi Gacogne4f902b82015-05-28 16:23:00 +0200510static int ssl_dh_ptr_index = -1;
Remi Gacogne47783ef2015-05-29 15:53:22 +0200511static DH *global_dh = NULL;
Remi Gacogne8de54152014-07-15 11:36:40 +0200512static DH *local_dh_1024 = NULL;
513static DH *local_dh_2048 = NULL;
514static DH *local_dh_4096 = NULL;
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +0100515static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen);
Remi Gacogne8de54152014-07-15 11:36:40 +0200516#endif /* OPENSSL_NO_DH */
517
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100518#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Christopher Faulet31af49d2015-06-09 17:29:50 +0200519/* X509V3 Extensions that will be added on generated certificates */
520#define X509V3_EXT_SIZE 5
521static char *x509v3_ext_names[X509V3_EXT_SIZE] = {
522 "basicConstraints",
523 "nsComment",
524 "subjectKeyIdentifier",
525 "authorityKeyIdentifier",
526 "keyUsage",
527};
528static char *x509v3_ext_values[X509V3_EXT_SIZE] = {
529 "CA:FALSE",
530 "\"OpenSSL Generated Certificate\"",
531 "hash",
532 "keyid,issuer:always",
533 "nonRepudiation,digitalSignature,keyEncipherment"
534};
Christopher Faulet31af49d2015-06-09 17:29:50 +0200535/* LRU cache to store generated certificate */
536static struct lru64_head *ssl_ctx_lru_tree = NULL;
537static unsigned int ssl_ctx_lru_seed = 0;
Emeric Brun821bb9b2017-06-15 16:37:39 +0200538static unsigned int ssl_ctx_serial;
Willy Tarreau86abe442018-11-25 20:12:18 +0100539__decl_rwlock(ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200540
Willy Tarreauc8ad3be2015-06-17 15:48:26 +0200541#endif // SSL_CTRL_SET_TLSEXT_HOSTNAME
542
yanbzhube2774d2015-12-10 15:07:30 -0500543/* The order here matters for picking a default context,
544 * keep the most common keytype at the bottom of the list
545 */
546const char *SSL_SOCK_KEYTYPE_NAMES[] = {
547 "dsa",
548 "ecdsa",
549 "rsa"
550};
yanbzhube2774d2015-12-10 15:07:30 -0500551
William Lallemandc3cd35f2017-11-28 11:04:43 +0100552static struct shared_context *ssl_shctx = NULL; /* ssl shared session cache */
William Lallemand4f45bb92017-10-30 20:08:51 +0100553static struct eb_root *sh_ssl_sess_tree; /* ssl shared session tree */
554
Dragan Dosen9ac98092020-05-11 15:51:45 +0200555/* Dedicated callback functions for heartbeat and clienthello.
556 */
557#ifdef TLS1_RT_HEARTBEAT
558static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
559 int content_type, const void *buf, size_t len,
560 SSL *ssl);
561#endif
562static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
563 int content_type, const void *buf, size_t len,
564 SSL *ssl);
565
William Lallemandca5cf0a2021-06-09 16:46:12 +0200566#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200567static void ssl_init_keylog(struct connection *conn, int write_p, int version,
568 int content_type, const void *buf, size_t len,
569 SSL *ssl);
570#endif
571
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200572/* List head of all registered SSL/TLS protocol message callbacks. */
573struct list ssl_sock_msg_callbacks = LIST_HEAD_INIT(ssl_sock_msg_callbacks);
574
575/* Registers the function <func> in order to be called on SSL/TLS protocol
576 * message processing. It will return 0 if the function <func> is not set
577 * or if it fails to allocate memory.
578 */
579int ssl_sock_register_msg_callback(ssl_sock_msg_callback_func func)
580{
581 struct ssl_sock_msg_callback *cbk;
582
583 if (!func)
584 return 0;
585
586 cbk = calloc(1, sizeof(*cbk));
587 if (!cbk) {
588 ha_alert("out of memory in ssl_sock_register_msg_callback().\n");
589 return 0;
590 }
591
592 cbk->func = func;
593
Willy Tarreau2b718102021-04-21 07:32:39 +0200594 LIST_APPEND(&ssl_sock_msg_callbacks, &cbk->list);
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200595
596 return 1;
597}
598
Dragan Dosen9ac98092020-05-11 15:51:45 +0200599/* Used to register dedicated SSL/TLS protocol message callbacks.
600 */
601static int ssl_sock_register_msg_callbacks(void)
602{
603#ifdef TLS1_RT_HEARTBEAT
604 if (!ssl_sock_register_msg_callback(ssl_sock_parse_heartbeat))
605 return ERR_ABORT;
606#endif
607 if (global_ssl.capture_cipherlist > 0) {
608 if (!ssl_sock_register_msg_callback(ssl_sock_parse_clienthello))
609 return ERR_ABORT;
610 }
William Lallemandca5cf0a2021-06-09 16:46:12 +0200611#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200612 if (global_ssl.keylog > 0) {
613 if (!ssl_sock_register_msg_callback(ssl_init_keylog))
614 return ERR_ABORT;
615 }
616#endif
617
Christopher Fauletfc633b62020-11-06 15:24:23 +0100618 return ERR_NONE;
Dragan Dosen9ac98092020-05-11 15:51:45 +0200619}
620
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200621/* Used to free all SSL/TLS protocol message callbacks that were
622 * registered by using ssl_sock_register_msg_callback().
623 */
624static void ssl_sock_unregister_msg_callbacks(void)
625{
626 struct ssl_sock_msg_callback *cbk, *cbkback;
627
628 list_for_each_entry_safe(cbk, cbkback, &ssl_sock_msg_callbacks, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200629 LIST_DELETE(&cbk->list);
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200630 free(cbk);
631 }
632}
633
Dragan Doseneb607fe2020-05-11 17:17:06 +0200634SSL *ssl_sock_get_ssl_object(struct connection *conn)
635{
636 if (!ssl_sock_is_ssl(conn))
637 return NULL;
638
639 return ((struct ssl_sock_ctx *)(conn->xprt_ctx))->ssl;
640}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100641/*
642 * This function gives the detail of the SSL error. It is used only
643 * if the debug mode and the verbose mode are activated. It dump all
644 * the SSL error until the stack was empty.
645 */
646static forceinline void ssl_sock_dump_errors(struct connection *conn)
647{
648 unsigned long ret;
649
650 if (unlikely(global.mode & MODE_DEBUG)) {
651 while(1) {
652 ret = ERR_get_error();
653 if (ret == 0)
654 return;
Willy Tarreau566cebc2021-03-02 19:32:39 +0100655 fprintf(stderr, "fd[%#x] OpenSSL error[0x%lx] %s: %s\n",
656 conn->handle.fd, ret,
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100657 ERR_func_error_string(ret), ERR_reason_error_string(ret));
658 }
659 }
660}
661
yanbzhube2774d2015-12-10 15:07:30 -0500662
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200663#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200664int ssl_init_single_engine(const char *engine_id, const char *def_algorithms)
Grant Zhang872f9c22017-01-21 01:10:18 +0000665{
666 int err_code = ERR_ABORT;
667 ENGINE *engine;
668 struct ssl_engine_list *el;
669
670 /* grab the structural reference to the engine */
671 engine = ENGINE_by_id(engine_id);
672 if (engine == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100673 ha_alert("ssl-engine %s: failed to get structural reference\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000674 goto fail_get;
675 }
676
677 if (!ENGINE_init(engine)) {
678 /* the engine couldn't initialise, release it */
Christopher Faulet767a84b2017-11-24 16:50:31 +0100679 ha_alert("ssl-engine %s: failed to initialize\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000680 goto fail_init;
681 }
682
683 if (ENGINE_set_default_string(engine, def_algorithms) == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100684 ha_alert("ssl-engine %s: failed on ENGINE_set_default_string\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000685 goto fail_set_method;
686 }
687
688 el = calloc(1, sizeof(*el));
Remi Tricot-Le Breton46697c82021-05-12 17:45:21 +0200689 if (!el)
690 goto fail_alloc;
Grant Zhang872f9c22017-01-21 01:10:18 +0000691 el->e = engine;
Willy Tarreau2b718102021-04-21 07:32:39 +0200692 LIST_INSERT(&openssl_engines, &el->list);
Emeric Brunece0c332017-12-06 13:51:49 +0100693 nb_engines++;
694 if (global_ssl.async)
695 global.ssl_used_async_engines = nb_engines;
Grant Zhang872f9c22017-01-21 01:10:18 +0000696 return 0;
697
Remi Tricot-Le Breton46697c82021-05-12 17:45:21 +0200698fail_alloc:
Grant Zhang872f9c22017-01-21 01:10:18 +0000699fail_set_method:
700 /* release the functional reference from ENGINE_init() */
701 ENGINE_finish(engine);
702
703fail_init:
704 /* release the structural reference from ENGINE_by_id() */
705 ENGINE_free(engine);
706
707fail_get:
708 return err_code;
709}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200710#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000711
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +0500712#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +0200713/*
714 * openssl async fd handler
715 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200716void ssl_async_fd_handler(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000717{
Olivier Houchardea8dd942019-05-20 14:02:16 +0200718 struct ssl_sock_ctx *ctx = fdtab[fd].owner;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000719
Emeric Brun3854e012017-05-17 20:42:48 +0200720 /* fd is an async enfine fd, we must stop
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000721 * to poll this fd until it is requested
722 */
Emeric Brunbbc16542017-06-02 15:54:06 +0000723 fd_stop_recv(fd);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000724 fd_cant_recv(fd);
725
726 /* crypto engine is available, let's notify the associated
727 * connection that it can pursue its processing.
728 */
Olivier Houcharda4598262020-09-15 22:16:02 +0200729 tasklet_wakeup(ctx->wait_event.tasklet);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000730}
731
Emeric Brun3854e012017-05-17 20:42:48 +0200732/*
733 * openssl async delayed SSL_free handler
734 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200735void ssl_async_fd_free(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000736{
737 SSL *ssl = fdtab[fd].owner;
Emeric Brun3854e012017-05-17 20:42:48 +0200738 OSSL_ASYNC_FD all_fd[32];
739 size_t num_all_fds = 0;
740 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000741
Emeric Brun3854e012017-05-17 20:42:48 +0200742 /* We suppose that the async job for a same SSL *
743 * are serialized. So if we are awake it is
744 * because the running job has just finished
745 * and we can remove all async fds safely
746 */
747 SSL_get_all_async_fds(ssl, NULL, &num_all_fds);
748 if (num_all_fds > 32) {
749 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
750 return;
751 }
752
753 SSL_get_all_async_fds(ssl, all_fd, &num_all_fds);
Emeric Brun64ff81b2022-07-01 17:36:50 +0200754 for (i=0 ; i < num_all_fds ; i++) {
755 /* We want to remove the fd from the fdtab
756 * but we flag it to disown because the
757 * close is performed by the engine itself
758 */
759 fdtab[all_fd[i]].state |= FD_DISOWN;
760 fd_delete(all_fd[i]);
761 }
Emeric Brun3854e012017-05-17 20:42:48 +0200762
763 /* Now we can safely call SSL_free, no more pending job in engines */
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000764 SSL_free(ssl);
Willy Tarreau4781b152021-04-06 13:53:36 +0200765 _HA_ATOMIC_DEC(&sslconns);
766 _HA_ATOMIC_DEC(&jobs);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000767}
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000768/*
Emeric Brun3854e012017-05-17 20:42:48 +0200769 * function used to manage a returned SSL_ERROR_WANT_ASYNC
770 * and enable/disable polling for async fds
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000771 */
Olivier Houchardea8dd942019-05-20 14:02:16 +0200772static inline void ssl_async_process_fds(struct ssl_sock_ctx *ctx)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000773{
Willy Tarreaua9786b62018-01-25 07:22:13 +0100774 OSSL_ASYNC_FD add_fd[32];
Emeric Brun3854e012017-05-17 20:42:48 +0200775 OSSL_ASYNC_FD del_fd[32];
Olivier Houchardea8dd942019-05-20 14:02:16 +0200776 SSL *ssl = ctx->ssl;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000777 size_t num_add_fds = 0;
778 size_t num_del_fds = 0;
Emeric Brun3854e012017-05-17 20:42:48 +0200779 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000780
781 SSL_get_changed_async_fds(ssl, NULL, &num_add_fds, NULL,
782 &num_del_fds);
Emeric Brun3854e012017-05-17 20:42:48 +0200783 if (num_add_fds > 32 || num_del_fds > 32) {
784 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000785 return;
786 }
787
Emeric Brun3854e012017-05-17 20:42:48 +0200788 SSL_get_changed_async_fds(ssl, add_fd, &num_add_fds, del_fd, &num_del_fds);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000789
Emeric Brun3854e012017-05-17 20:42:48 +0200790 /* We remove unused fds from the fdtab */
Emeric Brun64ff81b2022-07-01 17:36:50 +0200791 for (i=0 ; i < num_del_fds ; i++) {
792 /* We want to remove the fd from the fdtab
793 * but we flag it to disown because the
794 * close is performed by the engine itself
795 */
796 fdtab[del_fd[i]].state |= FD_DISOWN;
797 fd_delete(del_fd[i]);
798 }
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000799
Emeric Brun3854e012017-05-17 20:42:48 +0200800 /* We add new fds to the fdtab */
801 for (i=0 ; i < num_add_fds ; i++) {
Olivier Houchardea8dd942019-05-20 14:02:16 +0200802 fd_insert(add_fd[i], ctx, ssl_async_fd_handler, tid_bit);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000803 }
804
Emeric Brun3854e012017-05-17 20:42:48 +0200805 num_add_fds = 0;
806 SSL_get_all_async_fds(ssl, NULL, &num_add_fds);
807 if (num_add_fds > 32) {
808 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
809 return;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000810 }
Emeric Brun3854e012017-05-17 20:42:48 +0200811
812 /* We activate the polling for all known async fds */
813 SSL_get_all_async_fds(ssl, add_fd, &num_add_fds);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000814 for (i=0 ; i < num_add_fds ; i++) {
Emeric Brun3854e012017-05-17 20:42:48 +0200815 fd_want_recv(add_fd[i]);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000816 /* To ensure that the fd cache won't be used
817 * We'll prefer to catch a real RD event
818 * because handling an EAGAIN on this fd will
819 * result in a context switch and also
820 * some engines uses a fd in blocking mode.
821 */
822 fd_cant_recv(add_fd[i]);
823 }
Emeric Brun3854e012017-05-17 20:42:48 +0200824
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000825}
826#endif
827
William Lallemand104a7a62019-10-14 14:14:59 +0200828#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200829/*
830 * This function returns the number of seconds elapsed
831 * since the Epoch, 1970-01-01 00:00:00 +0000 (UTC) and the
832 * date presented un ASN1_GENERALIZEDTIME.
833 *
834 * In parsing error case, it returns -1.
835 */
836static long asn1_generalizedtime_to_epoch(ASN1_GENERALIZEDTIME *d)
837{
838 long epoch;
839 char *p, *end;
840 const unsigned short month_offset[12] = {
841 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
842 };
Remi Tricot-Le Breton1adb4392021-06-09 17:16:18 +0200843 unsigned long year, month;
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200844
845 if (!d || (d->type != V_ASN1_GENERALIZEDTIME)) return -1;
846
847 p = (char *)d->data;
848 end = p + d->length;
849
850 if (end - p < 4) return -1;
851 year = 1000 * (p[0] - '0') + 100 * (p[1] - '0') + 10 * (p[2] - '0') + p[3] - '0';
852 p += 4;
853 if (end - p < 2) return -1;
854 month = 10 * (p[0] - '0') + p[1] - '0';
855 if (month < 1 || month > 12) return -1;
856 /* Compute the number of seconds since 1 jan 1970 and the beginning of current month
857 We consider leap years and the current month (<marsh or not) */
858 epoch = ( ((year - 1970) * 365)
859 + ((year - (month < 3)) / 4 - (year - (month < 3)) / 100 + (year - (month < 3)) / 400)
860 - ((1970 - 1) / 4 - (1970 - 1) / 100 + (1970 - 1) / 400)
861 + month_offset[month-1]
862 ) * 24 * 60 * 60;
863 p += 2;
864 if (end - p < 2) return -1;
865 /* Add the number of seconds of completed days of current month */
866 epoch += (10 * (p[0] - '0') + p[1] - '0' - 1) * 24 * 60 * 60;
867 p += 2;
868 if (end - p < 2) return -1;
869 /* Add the completed hours of the current day */
870 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60 * 60;
871 p += 2;
872 if (end - p < 2) return -1;
873 /* Add the completed minutes of the current hour */
874 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60;
875 p += 2;
876 if (p == end) return -1;
877 /* Test if there is available seconds */
878 if (p[0] < '0' || p[0] > '9')
879 goto nosec;
880 if (end - p < 2) return -1;
881 /* Add the seconds of the current minute */
882 epoch += 10 * (p[0] - '0') + p[1] - '0';
883 p += 2;
884 if (p == end) return -1;
885 /* Ignore seconds float part if present */
886 if (p[0] == '.') {
887 do {
888 if (++p == end) return -1;
889 } while (p[0] >= '0' && p[0] <= '9');
890 }
891
892nosec:
893 if (p[0] == 'Z') {
894 if (end - p != 1) return -1;
895 return epoch;
896 }
897 else if (p[0] == '+') {
898 if (end - p != 5) return -1;
899 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700900 return epoch - ((10 * (p[1] - '0') + p[2] - '0') * 60 * 60 + (10 * (p[3] - '0') + p[4] - '0')) * 60;
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200901 }
902 else if (p[0] == '-') {
903 if (end - p != 5) return -1;
904 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700905 return epoch + ((10 * (p[1] - '0') + p[2] - '0') * 60 * 60 + (10 * (p[3] - '0') + p[4] - '0')) * 60;
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200906 }
907
908 return -1;
909}
910
William Lallemand104a7a62019-10-14 14:14:59 +0200911/*
912 * struct alignment works here such that the key.key is the same as key_data
913 * Do not change the placement of key_data
914 */
915struct certificate_ocsp {
916 struct ebmb_node key;
917 unsigned char key_data[OCSP_MAX_CERTID_ASN1_LENGTH];
918 struct buffer response;
William Lallemand76b4a122020-08-04 17:41:39 +0200919 int refcount;
William Lallemand104a7a62019-10-14 14:14:59 +0200920 long expire;
921};
922
923struct ocsp_cbk_arg {
924 int is_single;
925 int single_kt;
926 union {
927 struct certificate_ocsp *s_ocsp;
928 /*
929 * m_ocsp will have multiple entries dependent on key type
930 * Entry 0 - DSA
931 * Entry 1 - ECDSA
932 * Entry 2 - RSA
933 */
934 struct certificate_ocsp *m_ocsp[SSL_SOCK_NUM_KEYTYPES];
935 };
936};
937
Emeric Brun1d3865b2014-06-20 15:37:32 +0200938static struct eb_root cert_ocsp_tree = EB_ROOT_UNIQUE;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200939
940/* This function starts to check if the OCSP response (in DER format) contained
941 * in chunk 'ocsp_response' is valid (else exits on error).
942 * If 'cid' is not NULL, it will be compared to the OCSP certificate ID
943 * contained in the OCSP Response and exits on error if no match.
944 * If it's a valid OCSP Response:
945 * If 'ocsp' is not NULL, the chunk is copied in the OCSP response's container
946 * pointed by 'ocsp'.
947 * If 'ocsp' is NULL, the function looks up into the OCSP response's
948 * containers tree (using as index the ASN1 form of the OCSP Certificate ID extracted
949 * from the response) and exits on error if not found. Finally, If an OCSP response is
950 * already present in the container, it will be overwritten.
951 *
952 * Note: OCSP response containing more than one OCSP Single response is not
953 * considered valid.
954 *
955 * Returns 0 on success, 1 in error case.
956 */
Willy Tarreau83061a82018-07-13 11:56:34 +0200957static int ssl_sock_load_ocsp_response(struct buffer *ocsp_response,
958 struct certificate_ocsp *ocsp,
959 OCSP_CERTID *cid, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +0200960{
961 OCSP_RESPONSE *resp;
962 OCSP_BASICRESP *bs = NULL;
963 OCSP_SINGLERESP *sr;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200964 OCSP_CERTID *id;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200965 unsigned char *p = (unsigned char *) ocsp_response->area;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200966 int rc , count_sr;
Emeric Brun13a6b482014-06-20 15:44:34 +0200967 ASN1_GENERALIZEDTIME *revtime, *thisupd, *nextupd = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200968 int reason;
969 int ret = 1;
970
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200971 resp = d2i_OCSP_RESPONSE(NULL, (const unsigned char **)&p,
972 ocsp_response->data);
Emeric Brun4147b2e2014-06-16 18:36:30 +0200973 if (!resp) {
974 memprintf(err, "Unable to parse OCSP response");
975 goto out;
976 }
977
978 rc = OCSP_response_status(resp);
979 if (rc != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
980 memprintf(err, "OCSP response status not successful");
981 goto out;
982 }
983
984 bs = OCSP_response_get1_basic(resp);
985 if (!bs) {
986 memprintf(err, "Failed to get basic response from OCSP Response");
987 goto out;
988 }
989
990 count_sr = OCSP_resp_count(bs);
991 if (count_sr > 1) {
992 memprintf(err, "OCSP response ignored because contains multiple single responses (%d)", count_sr);
993 goto out;
994 }
995
996 sr = OCSP_resp_get0(bs, 0);
997 if (!sr) {
998 memprintf(err, "Failed to get OCSP single response");
999 goto out;
1000 }
1001
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001002 id = (OCSP_CERTID*)OCSP_SINGLERESP_get0_id(sr);
1003
Emeric Brun4147b2e2014-06-16 18:36:30 +02001004 rc = OCSP_single_get0_status(sr, &reason, &revtime, &thisupd, &nextupd);
Emmanuel Hocdetef607052017-10-24 14:57:16 +02001005 if (rc != V_OCSP_CERTSTATUS_GOOD && rc != V_OCSP_CERTSTATUS_REVOKED) {
Emmanuel Hocdet872085c2017-10-10 15:18:52 +02001006 memprintf(err, "OCSP single response: certificate status is unknown");
Emeric Brun4147b2e2014-06-16 18:36:30 +02001007 goto out;
1008 }
1009
Emeric Brun13a6b482014-06-20 15:44:34 +02001010 if (!nextupd) {
1011 memprintf(err, "OCSP single response: missing nextupdate");
1012 goto out;
1013 }
1014
Emeric Brunc8b27b62014-06-19 14:16:17 +02001015 rc = OCSP_check_validity(thisupd, nextupd, OCSP_MAX_RESPONSE_TIME_SKEW, -1);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001016 if (!rc) {
1017 memprintf(err, "OCSP single response: no longer valid.");
1018 goto out;
1019 }
1020
1021 if (cid) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001022 if (OCSP_id_cmp(id, cid)) {
Emeric Brun4147b2e2014-06-16 18:36:30 +02001023 memprintf(err, "OCSP single response: Certificate ID does not match certificate and issuer");
1024 goto out;
1025 }
1026 }
1027
1028 if (!ocsp) {
1029 unsigned char key[OCSP_MAX_CERTID_ASN1_LENGTH];
1030 unsigned char *p;
1031
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001032 rc = i2d_OCSP_CERTID(id, NULL);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001033 if (!rc) {
1034 memprintf(err, "OCSP single response: Unable to encode Certificate ID");
1035 goto out;
1036 }
1037
1038 if (rc > OCSP_MAX_CERTID_ASN1_LENGTH) {
1039 memprintf(err, "OCSP single response: Certificate ID too long");
1040 goto out;
1041 }
1042
1043 p = key;
1044 memset(key, 0, OCSP_MAX_CERTID_ASN1_LENGTH);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001045 i2d_OCSP_CERTID(id, &p);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001046 ocsp = (struct certificate_ocsp *)ebmb_lookup(&cert_ocsp_tree, key, OCSP_MAX_CERTID_ASN1_LENGTH);
1047 if (!ocsp) {
1048 memprintf(err, "OCSP single response: Certificate ID does not match any certificate or issuer");
1049 goto out;
1050 }
1051 }
1052
1053 /* According to comments on "chunk_dup", the
1054 previous chunk buffer will be freed */
1055 if (!chunk_dup(&ocsp->response, ocsp_response)) {
1056 memprintf(err, "OCSP response: Memory allocation error");
1057 goto out;
1058 }
1059
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001060 ocsp->expire = asn1_generalizedtime_to_epoch(nextupd) - OCSP_MAX_RESPONSE_TIME_SKEW;
Remi Tricot-Le Breton1adb4392021-06-09 17:16:18 +02001061 if (ocsp->expire < 0) {
1062 memprintf(err, "OCSP single response: Invalid \"Next Update\" time");
1063 goto out;
1064 }
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001065
Emeric Brun4147b2e2014-06-16 18:36:30 +02001066 ret = 0;
1067out:
Janusz Dziemidowicz8d710492017-03-08 16:59:41 +01001068 ERR_clear_error();
1069
Emeric Brun4147b2e2014-06-16 18:36:30 +02001070 if (bs)
1071 OCSP_BASICRESP_free(bs);
1072
1073 if (resp)
1074 OCSP_RESPONSE_free(resp);
1075
1076 return ret;
1077}
1078/*
1079 * External function use to update the OCSP response in the OCSP response's
1080 * containers tree. The chunk 'ocsp_response' must contain the OCSP response
1081 * to update in DER format.
1082 *
1083 * Returns 0 on success, 1 in error case.
1084 */
Willy Tarreau83061a82018-07-13 11:56:34 +02001085int ssl_sock_update_ocsp_response(struct buffer *ocsp_response, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +02001086{
1087 return ssl_sock_load_ocsp_response(ocsp_response, NULL, NULL, err);
1088}
1089
William Lallemand4a660132019-10-14 14:51:41 +02001090#endif
1091
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001092#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
1093static int ssl_tlsext_ticket_key_cb(SSL *s, unsigned char key_name[16], unsigned char *iv, EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc)
1094{
Christopher Faulet16f45c82018-02-16 11:23:49 +01001095 struct tls_keys_ref *ref;
Emeric Brun9e754772019-01-10 17:51:55 +01001096 union tls_sess_key *keys;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001097 struct connection *conn;
1098 int head;
1099 int i;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001100 int ret = -1; /* error by default */
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001101
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001102 conn = SSL_get_ex_data(s, ssl_app_data_index);
Willy Tarreau07d94e42018-09-20 10:57:52 +02001103 ref = __objt_listener(conn->target)->bind_conf->keys_ref;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001104 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1105
1106 keys = ref->tlskeys;
1107 head = ref->tls_ticket_enc_index;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001108
1109 if (enc) {
1110 memcpy(key_name, keys[head].name, 16);
1111
1112 if(!RAND_pseudo_bytes(iv, EVP_MAX_IV_LENGTH))
Christopher Faulet16f45c82018-02-16 11:23:49 +01001113 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001114
Emeric Brun9e754772019-01-10 17:51:55 +01001115 if (ref->key_size_bits == 128) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001116
Emeric Brun9e754772019-01-10 17:51:55 +01001117 if(!EVP_EncryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[head].key_128.aes_key, iv))
1118 goto end;
1119
Willy Tarreau9356dac2019-05-10 09:22:53 +02001120 HMAC_Init_ex(hctx, keys[head].key_128.hmac_key, 16, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001121 ret = 1;
1122 }
1123 else if (ref->key_size_bits == 256 ) {
1124
1125 if(!EVP_EncryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[head].key_256.aes_key, iv))
1126 goto end;
1127
Willy Tarreau9356dac2019-05-10 09:22:53 +02001128 HMAC_Init_ex(hctx, keys[head].key_256.hmac_key, 32, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001129 ret = 1;
1130 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001131 } else {
1132 for (i = 0; i < TLS_TICKETS_NO; i++) {
1133 if (!memcmp(key_name, keys[(head + i) % TLS_TICKETS_NO].name, 16))
1134 goto found;
1135 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01001136 ret = 0;
1137 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001138
Christopher Faulet16f45c82018-02-16 11:23:49 +01001139 found:
Emeric Brun9e754772019-01-10 17:51:55 +01001140 if (ref->key_size_bits == 128) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001141 HMAC_Init_ex(hctx, keys[(head + i) % TLS_TICKETS_NO].key_128.hmac_key, 16, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001142 if(!EVP_DecryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_128.aes_key, iv))
1143 goto end;
1144 /* 2 for key renewal, 1 if current key is still valid */
1145 ret = i ? 2 : 1;
1146 }
1147 else if (ref->key_size_bits == 256) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001148 HMAC_Init_ex(hctx, keys[(head + i) % TLS_TICKETS_NO].key_256.hmac_key, 32, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001149 if(!EVP_DecryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_256.aes_key, iv))
1150 goto end;
1151 /* 2 for key renewal, 1 if current key is still valid */
1152 ret = i ? 2 : 1;
1153 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001154 }
Emeric Brun9e754772019-01-10 17:51:55 +01001155
Christopher Faulet16f45c82018-02-16 11:23:49 +01001156 end:
1157 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1158 return ret;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001159}
1160
1161struct tls_keys_ref *tlskeys_ref_lookup(const char *filename)
1162{
1163 struct tls_keys_ref *ref;
1164
1165 list_for_each_entry(ref, &tlskeys_reference, list)
1166 if (ref->filename && strcmp(filename, ref->filename) == 0)
1167 return ref;
1168 return NULL;
1169}
1170
1171struct tls_keys_ref *tlskeys_ref_lookupid(int unique_id)
1172{
1173 struct tls_keys_ref *ref;
1174
1175 list_for_each_entry(ref, &tlskeys_reference, list)
1176 if (ref->unique_id == unique_id)
1177 return ref;
1178 return NULL;
1179}
1180
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001181/* Update the key into ref: if keysize doesn't
Emeric Brun9e754772019-01-10 17:51:55 +01001182 * match existing ones, this function returns -1
1183 * else it returns 0 on success.
1184 */
1185int ssl_sock_update_tlskey_ref(struct tls_keys_ref *ref,
Willy Tarreau83061a82018-07-13 11:56:34 +02001186 struct buffer *tlskey)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001187{
Emeric Brun9e754772019-01-10 17:51:55 +01001188 if (ref->key_size_bits == 128) {
1189 if (tlskey->data != sizeof(struct tls_sess_key_128))
1190 return -1;
1191 }
1192 else if (ref->key_size_bits == 256) {
1193 if (tlskey->data != sizeof(struct tls_sess_key_256))
1194 return -1;
1195 }
1196 else
1197 return -1;
1198
Christopher Faulet16f45c82018-02-16 11:23:49 +01001199 HA_RWLOCK_WRLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001200 memcpy((char *) (ref->tlskeys + ((ref->tls_ticket_enc_index + 2) % TLS_TICKETS_NO)),
1201 tlskey->area, tlskey->data);
Christopher Faulet16f45c82018-02-16 11:23:49 +01001202 ref->tls_ticket_enc_index = (ref->tls_ticket_enc_index + 1) % TLS_TICKETS_NO;
1203 HA_RWLOCK_WRUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Emeric Brun9e754772019-01-10 17:51:55 +01001204
1205 return 0;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001206}
1207
Willy Tarreau83061a82018-07-13 11:56:34 +02001208int ssl_sock_update_tlskey(char *filename, struct buffer *tlskey, char **err)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001209{
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001210 struct tls_keys_ref *ref = tlskeys_ref_lookup(filename);
1211
1212 if(!ref) {
1213 memprintf(err, "Unable to locate the referenced filename: %s", filename);
1214 return 1;
1215 }
Emeric Brun9e754772019-01-10 17:51:55 +01001216 if (ssl_sock_update_tlskey_ref(ref, tlskey) < 0) {
1217 memprintf(err, "Invalid key size");
1218 return 1;
1219 }
1220
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001221 return 0;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001222}
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001223
1224/* This function finalize the configuration parsing. Its set all the
Willy Tarreaud1c57502016-12-22 22:46:15 +01001225 * automatic ids. It's called just after the basic checks. It returns
1226 * 0 on success otherwise ERR_*.
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001227 */
Willy Tarreaud1c57502016-12-22 22:46:15 +01001228static int tlskeys_finalize_config(void)
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001229{
1230 int i = 0;
1231 struct tls_keys_ref *ref, *ref2, *ref3;
1232 struct list tkr = LIST_HEAD_INIT(tkr);
1233
1234 list_for_each_entry(ref, &tlskeys_reference, list) {
1235 if (ref->unique_id == -1) {
1236 /* Look for the first free id. */
1237 while (1) {
1238 list_for_each_entry(ref2, &tlskeys_reference, list) {
1239 if (ref2->unique_id == i) {
1240 i++;
1241 break;
1242 }
1243 }
1244 if (&ref2->list == &tlskeys_reference)
1245 break;
1246 }
1247
1248 /* Uses the unique id and increment it for the next entry. */
1249 ref->unique_id = i;
1250 i++;
1251 }
1252 }
1253
1254 /* This sort the reference list by id. */
1255 list_for_each_entry_safe(ref, ref2, &tlskeys_reference, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +02001256 LIST_DELETE(&ref->list);
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001257 list_for_each_entry(ref3, &tkr, list) {
1258 if (ref->unique_id < ref3->unique_id) {
Willy Tarreau2b718102021-04-21 07:32:39 +02001259 LIST_APPEND(&ref3->list, &ref->list);
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001260 break;
1261 }
1262 }
1263 if (&ref3->list == &tkr)
Willy Tarreau2b718102021-04-21 07:32:39 +02001264 LIST_APPEND(&tkr, &ref->list);
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001265 }
1266
1267 /* swap root */
Willy Tarreau2b718102021-04-21 07:32:39 +02001268 LIST_INSERT(&tkr, &tlskeys_reference);
1269 LIST_DELETE(&tkr);
Christopher Fauletfc633b62020-11-06 15:24:23 +01001270 return ERR_NONE;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001271}
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001272#endif /* SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB */
1273
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001274#ifndef OPENSSL_NO_OCSP
William Lallemand76b4a122020-08-04 17:41:39 +02001275int ocsp_ex_index = -1;
1276
yanbzhube2774d2015-12-10 15:07:30 -05001277int ssl_sock_get_ocsp_arg_kt_index(int evp_keytype)
1278{
1279 switch (evp_keytype) {
1280 case EVP_PKEY_RSA:
1281 return 2;
1282 case EVP_PKEY_DSA:
1283 return 0;
1284 case EVP_PKEY_EC:
1285 return 1;
1286 }
1287
1288 return -1;
1289}
1290
Emeric Brun4147b2e2014-06-16 18:36:30 +02001291/*
1292 * Callback used to set OCSP status extension content in server hello.
1293 */
1294int ssl_sock_ocsp_stapling_cbk(SSL *ssl, void *arg)
1295{
yanbzhube2774d2015-12-10 15:07:30 -05001296 struct certificate_ocsp *ocsp;
1297 struct ocsp_cbk_arg *ocsp_arg;
1298 char *ssl_buf;
William Lallemand76b4a122020-08-04 17:41:39 +02001299 SSL_CTX *ctx;
yanbzhube2774d2015-12-10 15:07:30 -05001300 EVP_PKEY *ssl_pkey;
1301 int key_type;
1302 int index;
1303
William Lallemand76b4a122020-08-04 17:41:39 +02001304 ctx = SSL_get_SSL_CTX(ssl);
1305 if (!ctx)
1306 return SSL_TLSEXT_ERR_NOACK;
1307
1308 ocsp_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
1309 if (!ocsp_arg)
1310 return SSL_TLSEXT_ERR_NOACK;
yanbzhube2774d2015-12-10 15:07:30 -05001311
1312 ssl_pkey = SSL_get_privatekey(ssl);
1313 if (!ssl_pkey)
1314 return SSL_TLSEXT_ERR_NOACK;
1315
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001316 key_type = EVP_PKEY_base_id(ssl_pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001317
1318 if (ocsp_arg->is_single && ocsp_arg->single_kt == key_type)
1319 ocsp = ocsp_arg->s_ocsp;
1320 else {
1321 /* For multiple certs per context, we have to find the correct OCSP response based on
1322 * the certificate type
1323 */
1324 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
1325
1326 if (index < 0)
1327 return SSL_TLSEXT_ERR_NOACK;
1328
1329 ocsp = ocsp_arg->m_ocsp[index];
1330
1331 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001332
1333 if (!ocsp ||
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001334 !ocsp->response.area ||
1335 !ocsp->response.data ||
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001336 (ocsp->expire < now.tv_sec))
Emeric Brun4147b2e2014-06-16 18:36:30 +02001337 return SSL_TLSEXT_ERR_NOACK;
1338
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001339 ssl_buf = OPENSSL_malloc(ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001340 if (!ssl_buf)
1341 return SSL_TLSEXT_ERR_NOACK;
1342
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001343 memcpy(ssl_buf, ocsp->response.area, ocsp->response.data);
1344 SSL_set_tlsext_status_ocsp_resp(ssl, ssl_buf, ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001345
1346 return SSL_TLSEXT_ERR_OK;
1347}
1348
William Lallemand4a660132019-10-14 14:51:41 +02001349#endif
1350
Ilya Shipitsinb3201a32020-10-18 09:11:50 +05001351#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
William Lallemand76b4a122020-08-04 17:41:39 +02001352
1353
1354/*
1355 * Decrease the refcount of the struct ocsp_response and frees it if it's not
1356 * used anymore. Also removes it from the tree if free'd.
1357 */
1358static void ssl_sock_free_ocsp(struct certificate_ocsp *ocsp)
1359{
1360 if (!ocsp)
1361 return;
1362
1363 ocsp->refcount--;
1364 if (ocsp->refcount <= 0) {
1365 ebmb_delete(&ocsp->key);
1366 chunk_destroy(&ocsp->response);
1367 free(ocsp);
1368 }
1369}
1370
1371
Emeric Brun4147b2e2014-06-16 18:36:30 +02001372/*
1373 * This function enables the handling of OCSP status extension on 'ctx' if a
William Lallemand246c0242019-10-11 08:59:13 +02001374 * ocsp_response buffer was found in the cert_key_and_chain. To enable OCSP
1375 * status extension, the issuer's certificate is mandatory. It should be
1376 * present in ckch->ocsp_issuer.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001377 *
William Lallemand246c0242019-10-11 08:59:13 +02001378 * In addition, the ckch->ocsp_reponse buffer is loaded as a DER format of an
1379 * OCSP response. If file is empty or content is not a valid OCSP response,
1380 * OCSP status extension is enabled but OCSP response is ignored (a warning is
1381 * displayed).
Emeric Brun4147b2e2014-06-16 18:36:30 +02001382 *
1383 * Returns 1 if no ".ocsp" file found, 0 if OCSP status extension is
Joseph Herlant017b3da2018-11-15 09:07:59 -08001384 * successfully enabled, or -1 in other error case.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001385 */
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001386static int ssl_sock_load_ocsp(SSL_CTX *ctx, const struct cert_key_and_chain *ckch, STACK_OF(X509) *chain)
Emeric Brun4147b2e2014-06-16 18:36:30 +02001387{
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001388 X509 *x, *issuer;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001389 OCSP_CERTID *cid = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001390 int i, ret = -1;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001391 struct certificate_ocsp *ocsp = NULL, *iocsp;
1392 char *warn = NULL;
1393 unsigned char *p;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001394 void (*callback) (void);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001395
Emeric Brun4147b2e2014-06-16 18:36:30 +02001396
William Lallemand246c0242019-10-11 08:59:13 +02001397 x = ckch->cert;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001398 if (!x)
1399 goto out;
1400
William Lallemand246c0242019-10-11 08:59:13 +02001401 issuer = ckch->ocsp_issuer;
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001402 /* take issuer from chain over ocsp_issuer, is what is done historicaly */
1403 if (chain) {
1404 /* check if one of the certificate of the chain is the issuer */
1405 for (i = 0; i < sk_X509_num(chain); i++) {
1406 X509 *ti = sk_X509_value(chain, i);
1407 if (X509_check_issued(ti, x) == X509_V_OK) {
1408 issuer = ti;
1409 break;
1410 }
1411 }
1412 }
William Lallemand246c0242019-10-11 08:59:13 +02001413 if (!issuer)
1414 goto out;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001415
1416 cid = OCSP_cert_to_id(0, x, issuer);
1417 if (!cid)
1418 goto out;
1419
1420 i = i2d_OCSP_CERTID(cid, NULL);
1421 if (!i || (i > OCSP_MAX_CERTID_ASN1_LENGTH))
1422 goto out;
1423
Vincent Bernat02779b62016-04-03 13:48:43 +02001424 ocsp = calloc(1, sizeof(*ocsp));
Emeric Brun4147b2e2014-06-16 18:36:30 +02001425 if (!ocsp)
1426 goto out;
1427
1428 p = ocsp->key_data;
1429 i2d_OCSP_CERTID(cid, &p);
1430
1431 iocsp = (struct certificate_ocsp *)ebmb_insert(&cert_ocsp_tree, &ocsp->key, OCSP_MAX_CERTID_ASN1_LENGTH);
1432 if (iocsp == ocsp)
1433 ocsp = NULL;
1434
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001435#ifndef SSL_CTX_get_tlsext_status_cb
1436# define SSL_CTX_get_tlsext_status_cb(ctx, cb) \
1437 *cb = (void (*) (void))ctx->tlsext_status_cb;
1438#endif
1439 SSL_CTX_get_tlsext_status_cb(ctx, &callback);
1440
1441 if (!callback) {
William Lallemanda560c062020-07-31 11:43:20 +02001442 struct ocsp_cbk_arg *cb_arg;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001443 EVP_PKEY *pkey;
yanbzhube2774d2015-12-10 15:07:30 -05001444
William Lallemanda560c062020-07-31 11:43:20 +02001445 cb_arg = calloc(1, sizeof(*cb_arg));
1446 if (!cb_arg)
1447 goto out;
1448
yanbzhube2774d2015-12-10 15:07:30 -05001449 cb_arg->is_single = 1;
1450 cb_arg->s_ocsp = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001451 iocsp->refcount++;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001452
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001453 pkey = X509_get_pubkey(x);
1454 cb_arg->single_kt = EVP_PKEY_base_id(pkey);
1455 EVP_PKEY_free(pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001456
1457 SSL_CTX_set_tlsext_status_cb(ctx, ssl_sock_ocsp_stapling_cbk);
William Lallemand76b4a122020-08-04 17:41:39 +02001458 SSL_CTX_set_ex_data(ctx, ocsp_ex_index, cb_arg); /* we use the ex_data instead of the cb_arg function here, so we can use the cleanup callback to free */
1459
yanbzhube2774d2015-12-10 15:07:30 -05001460 } else {
1461 /*
1462 * If the ctx has a status CB, then we have previously set an OCSP staple for this ctx
1463 * Update that cb_arg with the new cert's staple
1464 */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001465 struct ocsp_cbk_arg *cb_arg;
yanbzhube2774d2015-12-10 15:07:30 -05001466 struct certificate_ocsp *tmp_ocsp;
1467 int index;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001468 int key_type;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001469 EVP_PKEY *pkey;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001470
William Lallemand76b4a122020-08-04 17:41:39 +02001471 cb_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
yanbzhube2774d2015-12-10 15:07:30 -05001472
1473 /*
1474 * The following few lines will convert cb_arg from a single ocsp to multi ocsp
1475 * the order of operations below matter, take care when changing it
1476 */
1477 tmp_ocsp = cb_arg->s_ocsp;
1478 index = ssl_sock_get_ocsp_arg_kt_index(cb_arg->single_kt);
1479 cb_arg->s_ocsp = NULL;
1480 cb_arg->m_ocsp[index] = tmp_ocsp;
1481 cb_arg->is_single = 0;
1482 cb_arg->single_kt = 0;
1483
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001484 pkey = X509_get_pubkey(x);
1485 key_type = EVP_PKEY_base_id(pkey);
1486 EVP_PKEY_free(pkey);
1487
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001488 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
William Lallemand76b4a122020-08-04 17:41:39 +02001489 if (index >= 0 && !cb_arg->m_ocsp[index]) {
yanbzhube2774d2015-12-10 15:07:30 -05001490 cb_arg->m_ocsp[index] = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001491 iocsp->refcount++;
1492 }
yanbzhube2774d2015-12-10 15:07:30 -05001493 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001494
1495 ret = 0;
1496
1497 warn = NULL;
William Lallemand86e4d632020-08-07 00:44:32 +02001498 if (ssl_sock_load_ocsp_response(ckch->ocsp_response, iocsp, cid, &warn)) {
William Lallemand3b5f3602019-10-16 18:05:05 +02001499 memprintf(&warn, "Loading: %s. Content will be ignored", warn ? warn : "failure");
Christopher Faulet767a84b2017-11-24 16:50:31 +01001500 ha_warning("%s.\n", warn);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001501 }
1502
1503out:
Emeric Brun4147b2e2014-06-16 18:36:30 +02001504 if (cid)
1505 OCSP_CERTID_free(cid);
1506
1507 if (ocsp)
Remi Tricot-Le Breton15838972022-11-03 15:16:49 +01001508 ssl_sock_free_ocsp(ocsp);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001509
1510 if (warn)
1511 free(warn);
1512
Emeric Brun4147b2e2014-06-16 18:36:30 +02001513 return ret;
1514}
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01001515#endif
1516
1517#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001518static int ssl_sock_load_ocsp(SSL_CTX *ctx, const struct cert_key_and_chain *ckch, STACK_OF(X509) *chain)
Emmanuel Hocdet2c32d8f2017-05-22 14:58:00 +02001519{
William Lallemand4a660132019-10-14 14:51:41 +02001520 return SSL_CTX_set_ocsp_response(ctx, (const uint8_t *)ckch->ocsp_response->area, ckch->ocsp_response->data);
Emmanuel Hocdet2c32d8f2017-05-22 14:58:00 +02001521}
1522#endif
1523
William Lallemand4a660132019-10-14 14:51:41 +02001524
Ilya Shipitsin7bbf5862021-02-06 18:55:27 +05001525#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001526
1527#define CT_EXTENSION_TYPE 18
1528
William Lallemand03c331c2020-05-13 10:10:01 +02001529int sctl_ex_index = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001530
1531int ssl_sock_sctl_add_cbk(SSL *ssl, unsigned ext_type, const unsigned char **out, size_t *outlen, int *al, void *add_arg)
1532{
Willy Tarreau83061a82018-07-13 11:56:34 +02001533 struct buffer *sctl = add_arg;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001534
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001535 *out = (unsigned char *) sctl->area;
1536 *outlen = sctl->data;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001537
1538 return 1;
1539}
1540
1541int ssl_sock_sctl_parse_cbk(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *parse_arg)
1542{
1543 return 1;
1544}
1545
William Lallemanda17f4112019-10-10 15:16:44 +02001546static int ssl_sock_load_sctl(SSL_CTX *ctx, struct buffer *sctl)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001547{
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001548 int ret = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001549
William Lallemanda17f4112019-10-10 15:16:44 +02001550 if (!SSL_CTX_add_server_custom_ext(ctx, CT_EXTENSION_TYPE, ssl_sock_sctl_add_cbk, NULL, sctl, ssl_sock_sctl_parse_cbk, NULL))
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001551 goto out;
1552
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001553 SSL_CTX_set_ex_data(ctx, sctl_ex_index, sctl);
1554
1555 ret = 0;
1556
1557out:
1558 return ret;
1559}
1560
1561#endif
1562
Emeric Brune1f38db2012-09-03 20:36:47 +02001563void ssl_sock_infocbk(const SSL *ssl, int where, int ret)
1564{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001565 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001566 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001567 BIO *write_bio;
Willy Tarreau622317d2015-02-27 16:36:16 +01001568 (void)ret; /* shut gcc stupid warning */
Emeric Brune1f38db2012-09-03 20:36:47 +02001569
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001570#ifndef SSL_OP_NO_RENEGOTIATION
1571 /* Please note that BoringSSL defines this macro to zero so don't
1572 * change this to #if and do not assign a default value to this macro!
1573 */
Emeric Brune1f38db2012-09-03 20:36:47 +02001574 if (where & SSL_CB_HANDSHAKE_START) {
1575 /* Disable renegotiation (CVE-2009-3555) */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01001576 if ((conn->flags & (CO_FL_WAIT_L6_CONN | CO_FL_EARLY_SSL_HS | CO_FL_EARLY_DATA)) == 0) {
Emeric Brune1f38db2012-09-03 20:36:47 +02001577 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01001578 conn->err_code = CO_ER_SSL_RENEG;
1579 }
Emeric Brune1f38db2012-09-03 20:36:47 +02001580 }
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001581#endif
Emeric Brund8b2bb52014-01-28 15:43:53 +01001582
1583 if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001584 if (!(ctx->xprt_st & SSL_SOCK_ST_FL_16K_WBFSIZE)) {
Emeric Brund8b2bb52014-01-28 15:43:53 +01001585 /* Long certificate chains optimz
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001586 If write and read bios are different, we
Emeric Brund8b2bb52014-01-28 15:43:53 +01001587 consider that the buffering was activated,
1588 so we rise the output buffer size from 4k
1589 to 16k */
1590 write_bio = SSL_get_wbio(ssl);
1591 if (write_bio != SSL_get_rbio(ssl)) {
1592 BIO_set_write_buffer_size(write_bio, 16384);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001593 ctx->xprt_st |= SSL_SOCK_ST_FL_16K_WBFSIZE;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001594 }
1595 }
1596 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02001597}
1598
Emeric Brune64aef12012-09-21 13:15:06 +02001599/* Callback is called for each certificate of the chain during a verify
1600 ok is set to 1 if preverify detect no error on current certificate.
1601 Returns 0 to break the handshake, 1 otherwise. */
Evan Broderbe554312013-06-27 00:05:25 -07001602int ssl_sock_bind_verifycbk(int ok, X509_STORE_CTX *x_store)
Emeric Brune64aef12012-09-21 13:15:06 +02001603{
1604 SSL *ssl;
1605 struct connection *conn;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001606 struct ssl_sock_ctx *ctx;
Emeric Brun81c00f02012-09-21 14:31:21 +02001607 int err, depth;
Emeric Brune64aef12012-09-21 13:15:06 +02001608
1609 ssl = X509_STORE_CTX_get_ex_data(x_store, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001610 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emeric Brune64aef12012-09-21 13:15:06 +02001611
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001612 ctx = conn->xprt_ctx;
1613
1614 ctx->xprt_st |= SSL_SOCK_ST_FL_VERIFY_DONE;
Emeric Brune64aef12012-09-21 13:15:06 +02001615
Emeric Brun81c00f02012-09-21 14:31:21 +02001616 if (ok) /* no errors */
1617 return ok;
1618
1619 depth = X509_STORE_CTX_get_error_depth(x_store);
1620 err = X509_STORE_CTX_get_error(x_store);
1621
1622 /* check if CA error needs to be ignored */
1623 if (depth > 0) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001624 if (!SSL_SOCK_ST_TO_CA_ERROR(ctx->xprt_st)) {
1625 ctx->xprt_st |= SSL_SOCK_CA_ERROR_TO_ST(err);
1626 ctx->xprt_st |= SSL_SOCK_CAEDEPTH_TO_ST(depth);
Emeric Brunf282a812012-09-21 15:27:54 +02001627 }
1628
Willy Tarreau731248f2020-02-04 14:02:02 +01001629 if (err < 64 && __objt_listener(conn->target)->bind_conf->ca_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001630 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001631 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001632 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001633 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001634
Willy Tarreau20879a02012-12-03 16:32:10 +01001635 conn->err_code = CO_ER_SSL_CA_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001636 return 0;
1637 }
1638
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001639 if (!SSL_SOCK_ST_TO_CRTERROR(ctx->xprt_st))
1640 ctx->xprt_st |= SSL_SOCK_CRTERROR_TO_ST(err);
Emeric Brunf282a812012-09-21 15:27:54 +02001641
Emeric Brun81c00f02012-09-21 14:31:21 +02001642 /* check if certificate error needs to be ignored */
Willy Tarreau731248f2020-02-04 14:02:02 +01001643 if (err < 64 && __objt_listener(conn->target)->bind_conf->crt_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001644 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001645 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001646 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001647 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001648
Willy Tarreau20879a02012-12-03 16:32:10 +01001649 conn->err_code = CO_ER_SSL_CRT_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001650 return 0;
Emeric Brune64aef12012-09-21 13:15:06 +02001651}
1652
Dragan Dosen9ac98092020-05-11 15:51:45 +02001653#ifdef TLS1_RT_HEARTBEAT
1654static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
1655 int content_type, const void *buf, size_t len,
1656 SSL *ssl)
1657{
1658 /* test heartbeat received (write_p is set to 0
1659 for a received record) */
1660 if ((content_type == TLS1_RT_HEARTBEAT) && (write_p == 0)) {
1661 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
1662 const unsigned char *p = buf;
1663 unsigned int payload;
1664
1665 ctx->xprt_st |= SSL_SOCK_RECV_HEARTBEAT;
1666
1667 /* Check if this is a CVE-2014-0160 exploitation attempt. */
1668 if (*p != TLS1_HB_REQUEST)
1669 return;
1670
1671 if (len < 1 + 2 + 16) /* 1 type + 2 size + 0 payload + 16 padding */
1672 goto kill_it;
1673
1674 payload = (p[1] * 256) + p[2];
1675 if (3 + payload + 16 <= len)
1676 return; /* OK no problem */
1677 kill_it:
1678 /* We have a clear heartbleed attack (CVE-2014-0160), the
1679 * advertised payload is larger than the advertised packet
1680 * length, so we have garbage in the buffer between the
1681 * payload and the end of the buffer (p+len). We can't know
1682 * if the SSL stack is patched, and we don't know if we can
1683 * safely wipe out the area between p+3+len and payload.
1684 * So instead, we prevent the response from being sent by
1685 * setting the max_send_fragment to 0 and we report an SSL
1686 * error, which will kill this connection. It will be reported
1687 * above as SSL_ERROR_SSL while an other handshake failure with
1688 * a heartbeat message will be reported as SSL_ERROR_SYSCALL.
1689 */
1690 ssl->max_send_fragment = 0;
1691 SSLerr(SSL_F_TLS1_HEARTBEAT, SSL_R_SSL_HANDSHAKE_FAILURE);
1692 }
1693}
1694#endif
1695
1696static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
1697 int content_type, const void *buf, size_t len,
1698 SSL *ssl)
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001699{
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001700 struct ssl_capture *capture;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001701 unsigned char *msg;
1702 unsigned char *end;
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001703 size_t rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001704
1705 /* This function is called for "from client" and "to server"
1706 * connections. The combination of write_p == 0 and content_type == 22
Joseph Herlant017b3da2018-11-15 09:07:59 -08001707 * is only available during "from client" connection.
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001708 */
1709
1710 /* "write_p" is set to 0 is the bytes are received messages,
1711 * otherwise it is set to 1.
1712 */
1713 if (write_p != 0)
1714 return;
1715
1716 /* content_type contains the type of message received or sent
1717 * according with the SSL/TLS protocol spec. This message is
1718 * encoded with one byte. The value 256 (two bytes) is used
1719 * for designing the SSL/TLS record layer. According with the
1720 * rfc6101, the expected message (other than 256) are:
1721 * - change_cipher_spec(20)
1722 * - alert(21)
1723 * - handshake(22)
1724 * - application_data(23)
1725 * - (255)
1726 * We are interessed by the handshake and specially the client
1727 * hello.
1728 */
1729 if (content_type != 22)
1730 return;
1731
1732 /* The message length is at least 4 bytes, containing the
1733 * message type and the message length.
1734 */
1735 if (len < 4)
1736 return;
1737
1738 /* First byte of the handshake message id the type of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001739 * message. The known types are:
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001740 * - hello_request(0)
1741 * - client_hello(1)
1742 * - server_hello(2)
1743 * - certificate(11)
1744 * - server_key_exchange (12)
1745 * - certificate_request(13)
1746 * - server_hello_done(14)
1747 * We are interested by the client hello.
1748 */
1749 msg = (unsigned char *)buf;
1750 if (msg[0] != 1)
1751 return;
1752
1753 /* Next three bytes are the length of the message. The total length
1754 * must be this decoded length + 4. If the length given as argument
1755 * is not the same, we abort the protocol dissector.
1756 */
1757 rec_len = (msg[1] << 16) + (msg[2] << 8) + msg[3];
1758 if (len < rec_len + 4)
1759 return;
1760 msg += 4;
1761 end = msg + rec_len;
1762 if (end < msg)
1763 return;
1764
1765 /* Expect 2 bytes for protocol version (1 byte for major and 1 byte
1766 * for minor, the random, composed by 4 bytes for the unix time and
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001767 * 28 bytes for unix payload. So we jump 1 + 1 + 4 + 28.
1768 */
1769 msg += 1 + 1 + 4 + 28;
1770 if (msg > end)
1771 return;
1772
1773 /* Next, is session id:
1774 * if present, we have to jump by length + 1 for the size information
1775 * if not present, we have to jump by 1 only
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001776 */
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001777 if (msg[0] > 0)
1778 msg += msg[0];
1779 msg += 1;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001780 if (msg > end)
1781 return;
1782
1783 /* Next two bytes are the ciphersuite length. */
1784 if (msg + 2 > end)
1785 return;
1786 rec_len = (msg[0] << 8) + msg[1];
1787 msg += 2;
1788 if (msg + rec_len > end || msg + rec_len < msg)
1789 return;
1790
Willy Tarreaub454e902021-03-22 15:09:41 +01001791 capture = pool_alloc(pool_head_ssl_capture);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001792 if (!capture)
1793 return;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001794 /* Compute the xxh64 of the ciphersuite. */
1795 capture->xxh64 = XXH64(msg, rec_len, 0);
1796
1797 /* Capture the ciphersuite. */
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001798 capture->ciphersuite_len = (global_ssl.capture_cipherlist < rec_len) ?
1799 global_ssl.capture_cipherlist : rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001800 memcpy(capture->ciphersuite, msg, capture->ciphersuite_len);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001801
1802 SSL_set_ex_data(ssl, ssl_capture_ptr_index, capture);
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001803}
William Lallemand7d42ef52020-07-06 11:41:30 +02001804
1805
William Lallemandca5cf0a2021-06-09 16:46:12 +02001806#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02001807static void ssl_init_keylog(struct connection *conn, int write_p, int version,
1808 int content_type, const void *buf, size_t len,
1809 SSL *ssl)
1810{
1811 struct ssl_keylog *keylog;
1812
1813 if (SSL_get_ex_data(ssl, ssl_keylog_index))
1814 return;
1815
Willy Tarreauf208ac02021-03-22 21:10:12 +01001816 keylog = pool_zalloc(pool_head_ssl_keylog);
William Lallemand7d42ef52020-07-06 11:41:30 +02001817 if (!keylog)
1818 return;
1819
William Lallemand7d42ef52020-07-06 11:41:30 +02001820 if (!SSL_set_ex_data(ssl, ssl_keylog_index, keylog)) {
1821 pool_free(pool_head_ssl_keylog, keylog);
1822 return;
1823 }
1824}
1825#endif
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001826
Emeric Brun29f037d2014-04-25 19:05:36 +02001827/* Callback is called for ssl protocol analyse */
1828void ssl_sock_msgcbk(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
1829{
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001830 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
1831 struct ssl_sock_msg_callback *cbk;
1832
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001833 /* Try to call all callback functions that were registered by using
1834 * ssl_sock_register_msg_callback().
1835 */
1836 list_for_each_entry(cbk, &ssl_sock_msg_callbacks, list) {
1837 cbk->func(conn, write_p, version, content_type, buf, len, ssl);
1838 }
Emeric Brun29f037d2014-04-25 19:05:36 +02001839}
1840
Bernard Spil13c53f82018-02-15 13:34:58 +01001841#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchardc7566002018-11-20 23:33:50 +01001842static int ssl_sock_srv_select_protos(SSL *s, unsigned char **out, unsigned char *outlen,
1843 const unsigned char *in, unsigned int inlen,
1844 void *arg)
1845{
1846 struct server *srv = arg;
1847
1848 if (SSL_select_next_proto(out, outlen, in, inlen, (unsigned char *)srv->ssl_ctx.npn_str,
1849 srv->ssl_ctx.npn_len) == OPENSSL_NPN_NEGOTIATED)
1850 return SSL_TLSEXT_ERR_OK;
1851 return SSL_TLSEXT_ERR_NOACK;
1852}
1853#endif
1854
1855#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001856/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001857 * negotiable protocols for NPN.
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001858 */
1859static int ssl_sock_advertise_npn_protos(SSL *s, const unsigned char **data,
1860 unsigned int *len, void *arg)
1861{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001862 struct ssl_bind_conf *conf = arg;
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001863
1864 *data = (const unsigned char *)conf->npn_str;
1865 *len = conf->npn_len;
1866 return SSL_TLSEXT_ERR_OK;
1867}
1868#endif
1869
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001870#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Willy Tarreauab861d32013-04-02 02:30:41 +02001871/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001872 * negotiable protocols for ALPN.
Willy Tarreauab861d32013-04-02 02:30:41 +02001873 */
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001874static int ssl_sock_advertise_alpn_protos(SSL *s, const unsigned char **out,
1875 unsigned char *outlen,
1876 const unsigned char *server,
1877 unsigned int server_len, void *arg)
Willy Tarreauab861d32013-04-02 02:30:41 +02001878{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001879 struct ssl_bind_conf *conf = arg;
Willy Tarreauab861d32013-04-02 02:30:41 +02001880
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001881 if (SSL_select_next_proto((unsigned char**) out, outlen, (const unsigned char *)conf->alpn_str,
1882 conf->alpn_len, server, server_len) != OPENSSL_NPN_NEGOTIATED) {
1883 return SSL_TLSEXT_ERR_NOACK;
1884 }
Willy Tarreauab861d32013-04-02 02:30:41 +02001885 return SSL_TLSEXT_ERR_OK;
1886}
1887#endif
1888
Willy Tarreauc8ad3be2015-06-17 15:48:26 +02001889#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001890#ifndef SSL_NO_GENERATE_CERTIFICATES
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02001891
Shimi Gersneradabbfe2020-08-23 13:58:13 +03001892/* Configure a DNS SAN extenion on a certificate. */
1893int ssl_sock_add_san_ext(X509V3_CTX* ctx, X509* cert, const char *servername) {
1894 int failure = 0;
1895 X509_EXTENSION *san_ext = NULL;
1896 CONF *conf = NULL;
1897 struct buffer *san_name = get_trash_chunk();
1898
1899 conf = NCONF_new(NULL);
1900 if (!conf) {
1901 failure = 1;
1902 goto cleanup;
1903 }
1904
1905 /* Build an extension based on the DNS entry above */
1906 chunk_appendf(san_name, "DNS:%s", servername);
1907 san_ext = X509V3_EXT_nconf_nid(conf, ctx, NID_subject_alt_name, san_name->area);
1908 if (!san_ext) {
1909 failure = 1;
1910 goto cleanup;
1911 }
1912
1913 /* Add the extension */
1914 if (!X509_add_ext(cert, san_ext, -1 /* Add to end */)) {
1915 failure = 1;
1916 goto cleanup;
1917 }
1918
1919 /* Success */
1920 failure = 0;
1921
1922cleanup:
1923 if (NULL != san_ext) X509_EXTENSION_free(san_ext);
1924 if (NULL != conf) NCONF_free(conf);
1925
1926 return failure;
1927}
1928
Christopher Faulet30548802015-06-11 13:39:32 +02001929/* Create a X509 certificate with the specified servername and serial. This
1930 * function returns a SSL_CTX object or NULL if an error occurs. */
Christopher Faulet7969a332015-10-09 11:15:03 +02001931static SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01001932ssl_sock_do_create_cert(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001933{
Shimi Gersner5846c492020-08-23 13:58:12 +03001934 X509 *cacert = bind_conf->ca_sign_ckch->cert;
1935 EVP_PKEY *capkey = bind_conf->ca_sign_ckch->key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001936 SSL_CTX *ssl_ctx = NULL;
1937 X509 *newcrt = NULL;
1938 EVP_PKEY *pkey = NULL;
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001939 SSL *tmp_ssl = NULL;
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001940 CONF *ctmp = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001941 X509_NAME *name;
1942 const EVP_MD *digest;
1943 X509V3_CTX ctx;
1944 unsigned int i;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001945 int key_type;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001946
Christopher Faulet48a83322017-07-28 16:56:09 +02001947 /* Get the private key of the default certificate and use it */
Ilya Shipitsinaf204882020-12-19 03:12:12 +05001948#ifdef HAVE_SSL_CTX_get0_privatekey
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001949 pkey = SSL_CTX_get0_privatekey(bind_conf->default_ctx);
1950#else
1951 tmp_ssl = SSL_new(bind_conf->default_ctx);
1952 if (tmp_ssl)
1953 pkey = SSL_get_privatekey(tmp_ssl);
1954#endif
1955 if (!pkey)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001956 goto mkcert_error;
1957
1958 /* Create the certificate */
1959 if (!(newcrt = X509_new()))
1960 goto mkcert_error;
1961
1962 /* Set version number for the certificate (X509v3) and the serial
1963 * number */
1964 if (X509_set_version(newcrt, 2L) != 1)
1965 goto mkcert_error;
Willy Tarreau1db42732021-04-06 11:44:07 +02001966 ASN1_INTEGER_set(X509_get_serialNumber(newcrt), _HA_ATOMIC_ADD_FETCH(&ssl_ctx_serial, 1));
Christopher Faulet31af49d2015-06-09 17:29:50 +02001967
1968 /* Set duration for the certificate */
Rosen Penev68185952018-12-14 08:47:02 -08001969 if (!X509_gmtime_adj(X509_getm_notBefore(newcrt), (long)-60*60*24) ||
1970 !X509_gmtime_adj(X509_getm_notAfter(newcrt),(long)60*60*24*365))
Christopher Faulet31af49d2015-06-09 17:29:50 +02001971 goto mkcert_error;
1972
1973 /* set public key in the certificate */
1974 if (X509_set_pubkey(newcrt, pkey) != 1)
1975 goto mkcert_error;
1976
1977 /* Set issuer name from the CA */
1978 if (!(name = X509_get_subject_name(cacert)))
1979 goto mkcert_error;
1980 if (X509_set_issuer_name(newcrt, name) != 1)
1981 goto mkcert_error;
1982
1983 /* Set the subject name using the same, but the CN */
1984 name = X509_NAME_dup(name);
1985 if (X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC,
1986 (const unsigned char *)servername,
1987 -1, -1, 0) != 1) {
1988 X509_NAME_free(name);
1989 goto mkcert_error;
1990 }
1991 if (X509_set_subject_name(newcrt, name) != 1) {
1992 X509_NAME_free(name);
1993 goto mkcert_error;
1994 }
1995 X509_NAME_free(name);
1996
1997 /* Add x509v3 extensions as specified */
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001998 ctmp = NCONF_new(NULL);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001999 X509V3_set_ctx(&ctx, cacert, newcrt, NULL, NULL, 0);
2000 for (i = 0; i < X509V3_EXT_SIZE; i++) {
2001 X509_EXTENSION *ext;
2002
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02002003 if (!(ext = X509V3_EXT_nconf(ctmp, &ctx, x509v3_ext_names[i], x509v3_ext_values[i])))
Christopher Faulet31af49d2015-06-09 17:29:50 +02002004 goto mkcert_error;
2005 if (!X509_add_ext(newcrt, ext, -1)) {
2006 X509_EXTENSION_free(ext);
2007 goto mkcert_error;
2008 }
2009 X509_EXTENSION_free(ext);
2010 }
2011
Shimi Gersneradabbfe2020-08-23 13:58:13 +03002012 /* Add SAN extension */
2013 if (ssl_sock_add_san_ext(&ctx, newcrt, servername)) {
2014 goto mkcert_error;
2015 }
2016
Christopher Faulet31af49d2015-06-09 17:29:50 +02002017 /* Sign the certificate with the CA private key */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002018
2019 key_type = EVP_PKEY_base_id(capkey);
2020
2021 if (key_type == EVP_PKEY_DSA)
2022 digest = EVP_sha1();
2023 else if (key_type == EVP_PKEY_RSA)
Christopher Faulet31af49d2015-06-09 17:29:50 +02002024 digest = EVP_sha256();
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002025 else if (key_type == EVP_PKEY_EC)
Christopher Faulet7969a332015-10-09 11:15:03 +02002026 digest = EVP_sha256();
2027 else {
Ilya Shipitsinec36c912021-01-07 11:57:42 +05002028#ifdef ASN1_PKEY_CTRL_DEFAULT_MD_NID
Christopher Faulet7969a332015-10-09 11:15:03 +02002029 int nid;
2030
2031 if (EVP_PKEY_get_default_digest_nid(capkey, &nid) <= 0)
2032 goto mkcert_error;
2033 if (!(digest = EVP_get_digestbynid(nid)))
2034 goto mkcert_error;
Christopher Faulete7db2162015-10-19 13:59:24 +02002035#else
2036 goto mkcert_error;
2037#endif
Christopher Faulet7969a332015-10-09 11:15:03 +02002038 }
2039
Christopher Faulet31af49d2015-06-09 17:29:50 +02002040 if (!(X509_sign(newcrt, capkey, digest)))
2041 goto mkcert_error;
2042
2043 /* Create and set the new SSL_CTX */
2044 if (!(ssl_ctx = SSL_CTX_new(SSLv23_server_method())))
2045 goto mkcert_error;
2046 if (!SSL_CTX_use_PrivateKey(ssl_ctx, pkey))
2047 goto mkcert_error;
2048 if (!SSL_CTX_use_certificate(ssl_ctx, newcrt))
2049 goto mkcert_error;
2050 if (!SSL_CTX_check_private_key(ssl_ctx))
2051 goto mkcert_error;
2052
Shimi Gersner5846c492020-08-23 13:58:12 +03002053 /* Build chaining the CA cert and the rest of the chain, keep these order */
2054#if defined(SSL_CTX_add1_chain_cert)
2055 if (!SSL_CTX_add1_chain_cert(ssl_ctx, bind_conf->ca_sign_ckch->cert)) {
2056 goto mkcert_error;
2057 }
2058
2059 if (bind_conf->ca_sign_ckch->chain) {
2060 for (i = 0; i < sk_X509_num(bind_conf->ca_sign_ckch->chain); i++) {
2061 X509 *chain_cert = sk_X509_value(bind_conf->ca_sign_ckch->chain, i);
2062 if (!SSL_CTX_add1_chain_cert(ssl_ctx, chain_cert)) {
2063 goto mkcert_error;
2064 }
2065 }
2066 }
2067#endif
2068
Christopher Faulet31af49d2015-06-09 17:29:50 +02002069 if (newcrt) X509_free(newcrt);
Christopher Faulet7969a332015-10-09 11:15:03 +02002070
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002071#ifndef OPENSSL_NO_DH
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002072 SSL_CTX_set_tmp_dh_callback(ssl_ctx, ssl_get_tmp_dh);
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002073#endif
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002074#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
2075 {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002076 const char *ecdhe = (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe : ECDHE_DEFAULT_CURVE);
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002077 EC_KEY *ecc;
2078 int nid;
2079
2080 if ((nid = OBJ_sn2nid(ecdhe)) == NID_undef)
2081 goto end;
2082 if (!(ecc = EC_KEY_new_by_curve_name(nid)))
2083 goto end;
2084 SSL_CTX_set_tmp_ecdh(ssl_ctx, ecc);
2085 EC_KEY_free(ecc);
2086 }
2087#endif
2088 end:
Christopher Faulet31af49d2015-06-09 17:29:50 +02002089 return ssl_ctx;
2090
2091 mkcert_error:
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02002092 if (ctmp) NCONF_free(ctmp);
Emmanuel Hocdet15969292017-08-11 10:56:00 +02002093 if (tmp_ssl) SSL_free(tmp_ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002094 if (ssl_ctx) SSL_CTX_free(ssl_ctx);
2095 if (newcrt) X509_free(newcrt);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002096 return NULL;
2097}
2098
Christopher Faulet7969a332015-10-09 11:15:03 +02002099SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002100ssl_sock_create_cert(struct connection *conn, const char *servername, unsigned int key)
Christopher Faulet7969a332015-10-09 11:15:03 +02002101{
Willy Tarreau07d94e42018-09-20 10:57:52 +02002102 struct bind_conf *bind_conf = __objt_listener(conn->target)->bind_conf;
Olivier Houchard66ab4982019-02-26 18:37:15 +01002103 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002104
Olivier Houchard66ab4982019-02-26 18:37:15 +01002105 return ssl_sock_do_create_cert(servername, bind_conf, ctx->ssl);
Christopher Faulet7969a332015-10-09 11:15:03 +02002106}
2107
Christopher Faulet30548802015-06-11 13:39:32 +02002108/* Do a lookup for a certificate in the LRU cache used to store generated
Emeric Brun821bb9b2017-06-15 16:37:39 +02002109 * certificates and immediately assign it to the SSL session if not null. */
Christopher Faulet30548802015-06-11 13:39:32 +02002110SSL_CTX *
Emeric Brun821bb9b2017-06-15 16:37:39 +02002111ssl_sock_assign_generated_cert(unsigned int key, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet30548802015-06-11 13:39:32 +02002112{
2113 struct lru64 *lru = NULL;
2114
2115 if (ssl_ctx_lru_tree) {
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002116 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002117 lru = lru64_lookup(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002118 if (lru && lru->domain) {
2119 if (ssl)
2120 SSL_set_SSL_CTX(ssl, (SSL_CTX *)lru->data);
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002121 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002122 return (SSL_CTX *)lru->data;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002123 }
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002124 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002125 }
2126 return NULL;
2127}
2128
Emeric Brun821bb9b2017-06-15 16:37:39 +02002129/* Same as <ssl_sock_assign_generated_cert> but without SSL session. This
2130 * function is not thread-safe, it should only be used to check if a certificate
2131 * exists in the lru cache (with no warranty it will not be removed by another
2132 * thread). It is kept for backward compatibility. */
2133SSL_CTX *
2134ssl_sock_get_generated_cert(unsigned int key, struct bind_conf *bind_conf)
2135{
2136 return ssl_sock_assign_generated_cert(key, bind_conf, NULL);
2137}
2138
Christopher Fauletd2cab922015-07-28 16:03:47 +02002139/* Set a certificate int the LRU cache used to store generated
2140 * certificate. Return 0 on success, otherwise -1 */
2141int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002142ssl_sock_set_generated_cert(SSL_CTX *ssl_ctx, unsigned int key, struct bind_conf *bind_conf)
Christopher Faulet30548802015-06-11 13:39:32 +02002143{
2144 struct lru64 *lru = NULL;
2145
2146 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002147 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002148 lru = lru64_get(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002149 if (!lru) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002150 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002151 return -1;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002152 }
Christopher Faulet30548802015-06-11 13:39:32 +02002153 if (lru->domain && lru->data)
2154 lru->free((SSL_CTX *)lru->data);
Shimi Gersner5846c492020-08-23 13:58:12 +03002155 lru64_commit(lru, ssl_ctx, bind_conf->ca_sign_ckch->cert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002156 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002157 return 0;
Christopher Faulet30548802015-06-11 13:39:32 +02002158 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02002159 return -1;
Christopher Faulet30548802015-06-11 13:39:32 +02002160}
2161
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002162/* Compute the key of the certificate. */
Christopher Faulet30548802015-06-11 13:39:32 +02002163unsigned int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002164ssl_sock_generated_cert_key(const void *data, size_t len)
Christopher Faulet30548802015-06-11 13:39:32 +02002165{
2166 return XXH32(data, len, ssl_ctx_lru_seed);
2167}
2168
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002169/* Generate a cert and immediately assign it to the SSL session so that the cert's
2170 * refcount is maintained regardless of the cert's presence in the LRU cache.
2171 */
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002172static int
Christopher Faulet7969a332015-10-09 11:15:03 +02002173ssl_sock_generate_certificate(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02002174{
Shimi Gersner5846c492020-08-23 13:58:12 +03002175 X509 *cacert = bind_conf->ca_sign_ckch->cert;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002176 SSL_CTX *ssl_ctx = NULL;
2177 struct lru64 *lru = NULL;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002178 unsigned int key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002179
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002180 key = ssl_sock_generated_cert_key(servername, strlen(servername));
Christopher Faulet31af49d2015-06-09 17:29:50 +02002181 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002182 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002183 lru = lru64_get(key, ssl_ctx_lru_tree, cacert, 0);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002184 if (lru && lru->domain)
2185 ssl_ctx = (SSL_CTX *)lru->data;
Christopher Fauletd2cab922015-07-28 16:03:47 +02002186 if (!ssl_ctx && lru) {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002187 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002188 lru64_commit(lru, ssl_ctx, cacert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002189 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002190 SSL_set_SSL_CTX(ssl, ssl_ctx);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002191 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002192 return 1;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002193 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002194 else {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002195 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002196 SSL_set_SSL_CTX(ssl, ssl_ctx);
2197 /* No LRU cache, this CTX will be released as soon as the session dies */
2198 SSL_CTX_free(ssl_ctx);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002199 return 1;
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002200 }
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002201 return 0;
2202}
2203static int
2204ssl_sock_generate_certificate_from_conn(struct bind_conf *bind_conf, SSL *ssl)
2205{
2206 unsigned int key;
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002207 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002208
Willy Tarreauf5bdb642019-07-17 11:29:32 +02002209 if (conn_get_dst(conn)) {
Willy Tarreau085a1512019-07-17 14:47:35 +02002210 key = ssl_sock_generated_cert_key(conn->dst, get_addr_len(conn->dst));
Emeric Brun821bb9b2017-06-15 16:37:39 +02002211 if (ssl_sock_assign_generated_cert(key, bind_conf, ssl))
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002212 return 1;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002213 }
2214 return 0;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002215}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002216#endif /* !defined SSL_NO_GENERATE_CERTIFICATES */
Christopher Faulet31af49d2015-06-09 17:29:50 +02002217
Willy Tarreau9a1ab082019-05-09 13:26:41 +02002218#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002219
2220static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002221{
Emmanuel Hocdet23877ab2017-07-12 12:53:02 +02002222#if SSL_OP_NO_SSLv3
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002223 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, SSLv3_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002224 : SSL_CTX_set_ssl_version(ctx, SSLv3_client_method());
2225#endif
2226}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002227static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2228 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002229 : SSL_CTX_set_ssl_version(ctx, TLSv1_client_method());
2230}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002231static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002232#if SSL_OP_NO_TLSv1_1
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002233 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002234 : SSL_CTX_set_ssl_version(ctx, TLSv1_1_client_method());
2235#endif
2236}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002237static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002238#if SSL_OP_NO_TLSv1_2
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002239 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_2_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002240 : SSL_CTX_set_ssl_version(ctx, TLSv1_2_client_method());
2241#endif
2242}
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002243/* TLSv1.2 is the last supported version in this context. */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002244static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {}
2245/* Unusable in this context. */
2246static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {}
2247static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {}
2248static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {}
2249static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {}
2250static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {}
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002251#else /* openssl >= 1.1.0 */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002252
2253static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c) {
2254 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, SSL3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002255 : SSL_CTX_set_min_proto_version(ctx, SSL3_VERSION);
2256}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002257static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {
2258 c == SET_MAX ? SSL_set_max_proto_version(ssl, SSL3_VERSION)
2259 : SSL_set_min_proto_version(ssl, SSL3_VERSION);
2260}
2261static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2262 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002263 : SSL_CTX_set_min_proto_version(ctx, TLS1_VERSION);
2264}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002265static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {
2266 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_VERSION)
2267 : SSL_set_min_proto_version(ssl, TLS1_VERSION);
2268}
2269static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
2270 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002271 : SSL_CTX_set_min_proto_version(ctx, TLS1_1_VERSION);
2272}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002273static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {
2274 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_1_VERSION)
2275 : SSL_set_min_proto_version(ssl, TLS1_1_VERSION);
2276}
2277static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
2278 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002279 : SSL_CTX_set_min_proto_version(ctx, TLS1_2_VERSION);
2280}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002281static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {
2282 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_2_VERSION)
2283 : SSL_set_min_proto_version(ssl, TLS1_2_VERSION);
2284}
2285static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {
William Lallemande8a8aa42021-06-02 16:09:11 +02002286#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002287 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002288 : SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION);
2289#endif
2290}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002291static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {
William Lallemande8a8aa42021-06-02 16:09:11 +02002292#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002293 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_3_VERSION)
2294 : SSL_set_min_proto_version(ssl, TLS1_3_VERSION);
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002295#endif
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002296}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002297#endif
2298static void ctx_set_None_func(SSL_CTX *ctx, set_context_func c) { }
2299static void ssl_set_None_func(SSL *ssl, set_context_func c) { }
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002300
William Lallemand7fd8b452020-05-07 15:20:43 +02002301struct methodVersions methodVersions[] = {
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002302 {0, 0, ctx_set_None_func, ssl_set_None_func, "NONE"}, /* CONF_TLSV_NONE */
2303 {SSL_OP_NO_SSLv3, MC_SSL_O_NO_SSLV3, ctx_set_SSLv3_func, ssl_set_SSLv3_func, "SSLv3"}, /* CONF_SSLV3 */
2304 {SSL_OP_NO_TLSv1, MC_SSL_O_NO_TLSV10, ctx_set_TLSv10_func, ssl_set_TLSv10_func, "TLSv1.0"}, /* CONF_TLSV10 */
2305 {SSL_OP_NO_TLSv1_1, MC_SSL_O_NO_TLSV11, ctx_set_TLSv11_func, ssl_set_TLSv11_func, "TLSv1.1"}, /* CONF_TLSV11 */
2306 {SSL_OP_NO_TLSv1_2, MC_SSL_O_NO_TLSV12, ctx_set_TLSv12_func, ssl_set_TLSv12_func, "TLSv1.2"}, /* CONF_TLSV12 */
2307 {SSL_OP_NO_TLSv1_3, MC_SSL_O_NO_TLSV13, ctx_set_TLSv13_func, ssl_set_TLSv13_func, "TLSv1.3"}, /* CONF_TLSV13 */
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002308};
2309
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002310static void ssl_sock_switchctx_set(SSL *ssl, SSL_CTX *ctx)
2311{
2312 SSL_set_verify(ssl, SSL_CTX_get_verify_mode(ctx), ssl_sock_bind_verifycbk);
2313 SSL_set_client_CA_list(ssl, SSL_dup_CA_list(SSL_CTX_get_client_CA_list(ctx)));
2314 SSL_set_SSL_CTX(ssl, ctx);
2315}
2316
Ilya Shipitsin1fc44d42021-01-23 00:09:14 +05002317#ifdef HAVE_SSL_CLIENT_HELLO_CB
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002318
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002319int ssl_sock_switchctx_err_cbk(SSL *ssl, int *al, void *priv)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002320{
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002321 struct bind_conf *s = priv;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002322 (void)al; /* shut gcc stupid warning */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002323
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002324 if (SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name) || s->generate_certs)
2325 return SSL_TLSEXT_ERR_OK;
2326 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002327}
2328
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002329#ifdef OPENSSL_IS_BORINGSSL
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002330int ssl_sock_switchctx_cbk(const struct ssl_early_callback_ctx *ctx)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002331{
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002332 SSL *ssl = ctx->ssl;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002333#else
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002334int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *arg)
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002335{
2336#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002337 struct connection *conn;
2338 struct bind_conf *s;
2339 const uint8_t *extension_data;
2340 size_t extension_len;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002341 int has_rsa_sig = 0, has_ecdsa_sig = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002342
2343 char *wildp = NULL;
2344 const uint8_t *servername;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002345 size_t servername_len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002346 struct ebmb_node *node, *n, *node_ecdsa = NULL, *node_rsa = NULL, *node_anonymous = NULL;
Olivier Houchardc2aae742017-09-22 18:26:28 +02002347 int allow_early = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002348 int i;
2349
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002350 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Willy Tarreaua8825522018-10-15 13:20:07 +02002351 s = __objt_listener(conn->target)->bind_conf;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002352
Frédéric Lécaillee9473c72020-11-23 15:37:11 +01002353#ifdef USE_QUIC
2354 if (conn->qc) {
2355 /* Look for the QUIC transport parameters. */
2356#ifdef OPENSSL_IS_BORINGSSL
2357 if (!SSL_early_callback_ctx_extension_get(ctx, TLS_EXTENSION_QUIC_TRANSPORT_PARAMETERS,
2358 &extension_data, &extension_len))
2359#else
2360 if (!SSL_client_hello_get0_ext(ssl, TLS_EXTENSION_QUIC_TRANSPORT_PARAMETERS,
2361 &extension_data, &extension_len))
2362#endif
2363 goto abort;
2364
2365 if (!quic_transport_params_store(conn->qc, 0, extension_data,
2366 extension_data + extension_len))
2367 goto abort;
2368 }
2369#endif
2370
Olivier Houchard9679ac92017-10-27 14:58:08 +02002371 if (s->ssl_conf.early_data)
Olivier Houchardc2aae742017-09-22 18:26:28 +02002372 allow_early = 1;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002373#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002374 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_server_name,
2375 &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002376#else
2377 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_server_name, &extension_data, &extension_len)) {
2378#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002379 /*
2380 * The server_name extension was given too much extensibility when it
2381 * was written, so parsing the normal case is a bit complex.
2382 */
2383 size_t len;
2384 if (extension_len <= 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002385 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002386 /* Extract the length of the supplied list of names. */
2387 len = (*extension_data++) << 8;
2388 len |= *extension_data++;
2389 if (len + 2 != extension_len)
2390 goto abort;
2391 /*
2392 * The list in practice only has a single element, so we only consider
2393 * the first one.
2394 */
2395 if (len == 0 || *extension_data++ != TLSEXT_NAMETYPE_host_name)
2396 goto abort;
2397 extension_len = len - 1;
2398 /* Now we can finally pull out the byte array with the actual hostname. */
2399 if (extension_len <= 2)
2400 goto abort;
2401 len = (*extension_data++) << 8;
2402 len |= *extension_data++;
2403 if (len == 0 || len + 2 > extension_len || len > TLSEXT_MAXLEN_host_name
2404 || memchr(extension_data, 0, len) != NULL)
2405 goto abort;
2406 servername = extension_data;
2407 servername_len = len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002408 } else {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002409#if (!defined SSL_NO_GENERATE_CERTIFICATES)
2410 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02002411 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002412 }
2413#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002414 /* without SNI extension, is the default_ctx (need SSL_TLSEXT_ERR_NOACK) */
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002415 if (!s->strict_sni) {
William Lallemand21724f02019-11-04 17:56:13 +01002416 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002417 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002418 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Olivier Houchardc2aae742017-09-22 18:26:28 +02002419 goto allow_early;
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002420 }
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002421 goto abort;
2422 }
2423
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05002424 /* extract/check clientHello information */
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002425#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002426 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002427#else
2428 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
2429#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002430 uint8_t sign;
2431 size_t len;
2432 if (extension_len < 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002433 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002434 len = (*extension_data++) << 8;
2435 len |= *extension_data++;
2436 if (len + 2 != extension_len)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002437 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002438 if (len % 2 != 0)
2439 goto abort;
2440 for (; len > 0; len -= 2) {
2441 extension_data++; /* hash */
2442 sign = *extension_data++;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002443 switch (sign) {
2444 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002445 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002446 break;
2447 case TLSEXT_signature_ecdsa:
2448 has_ecdsa_sig = 1;
2449 break;
2450 default:
2451 continue;
2452 }
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002453 if (has_ecdsa_sig && has_rsa_sig)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002454 break;
2455 }
2456 } else {
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002457 /* without TLSEXT_TYPE_signature_algorithms extension (< TLSv1.2) */
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002458 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002459 }
2460 if (has_ecdsa_sig) { /* in very rare case: has ecdsa sign but not a ECDSA cipher */
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002461 const SSL_CIPHER *cipher;
2462 size_t len;
2463 const uint8_t *cipher_suites;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002464 has_ecdsa_sig = 0;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002465#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002466 len = ctx->cipher_suites_len;
2467 cipher_suites = ctx->cipher_suites;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002468#else
2469 len = SSL_client_hello_get0_ciphers(ssl, &cipher_suites);
2470#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002471 if (len % 2 != 0)
2472 goto abort;
2473 for (; len != 0; len -= 2, cipher_suites += 2) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002474#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002475 uint16_t cipher_suite = (cipher_suites[0] << 8) | cipher_suites[1];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002476 cipher = SSL_get_cipher_by_value(cipher_suite);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002477#else
2478 cipher = SSL_CIPHER_find(ssl, cipher_suites);
2479#endif
Emmanuel Hocdet019f9b12017-10-02 17:12:06 +02002480 if (cipher && SSL_CIPHER_get_auth_nid(cipher) == NID_auth_ecdsa) {
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002481 has_ecdsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002482 break;
2483 }
2484 }
2485 }
2486
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002487 for (i = 0; i < trash.size && i < servername_len; i++) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002488 trash.area[i] = tolower(servername[i]);
2489 if (!wildp && (trash.area[i] == '.'))
2490 wildp = &trash.area[i];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002491 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002492 trash.area[i] = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002493
William Lallemand150bfa82019-09-19 17:12:49 +02002494 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002495
William Lallemand94bd3192020-08-14 14:43:35 +02002496 /* Look for an ECDSA, RSA and DSA certificate, first in the single
2497 * name and if not found in the wildcard */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002498 for (i = 0; i < 2; i++) {
2499 if (i == 0) /* lookup in full qualified names */
2500 node = ebst_lookup(&s->sni_ctx, trash.area);
William Lallemand30f9e092020-08-17 14:31:19 +02002501 else if (i == 1 && wildp) /* lookup in wildcards names */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002502 node = ebst_lookup(&s->sni_w_ctx, wildp);
2503 else
2504 break;
William Lallemand30f9e092020-08-17 14:31:19 +02002505
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002506 for (n = node; n; n = ebmb_next_dup(n)) {
William Lallemand30f9e092020-08-17 14:31:19 +02002507
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002508 /* lookup a not neg filter */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002509 if (!container_of(n, struct sni_ctx, name)->neg) {
William Lallemand30f9e092020-08-17 14:31:19 +02002510 struct sni_ctx *sni, *sni_tmp;
2511 int skip = 0;
2512
2513 if (i == 1 && wildp) { /* wildcard */
2514 /* If this is a wildcard, look for an exclusion on the same crt-list line */
2515 sni = container_of(n, struct sni_ctx, name);
2516 list_for_each_entry(sni_tmp, &sni->ckch_inst->sni_ctx, by_ckch_inst) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01002517 if (sni_tmp->neg && (strcmp((const char *)sni_tmp->name.key, trash.area) == 0)) {
William Lallemand30f9e092020-08-17 14:31:19 +02002518 skip = 1;
2519 break;
2520 }
2521 }
2522 if (skip)
2523 continue;
2524 }
2525
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002526 switch(container_of(n, struct sni_ctx, name)->kinfo.sig) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002527 case TLSEXT_signature_ecdsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002528 if (!node_ecdsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002529 node_ecdsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002530 break;
2531 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002532 if (!node_rsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002533 node_rsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002534 break;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002535 default: /* TLSEXT_signature_anonymous|dsa */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002536 if (!node_anonymous)
2537 node_anonymous = n;
2538 break;
2539 }
2540 }
2541 }
William Lallemand94bd3192020-08-14 14:43:35 +02002542 }
2543 /* Once the certificates are found, select them depending on what is
2544 * supported in the client and by key_signature priority order: EDSA >
2545 * RSA > DSA */
William Lallemand5b1d1f62020-08-14 15:30:13 +02002546 if (has_ecdsa_sig && node_ecdsa)
2547 node = node_ecdsa;
2548 else if (has_rsa_sig && node_rsa)
2549 node = node_rsa;
2550 else if (node_anonymous)
2551 node = node_anonymous;
2552 else if (node_ecdsa)
2553 node = node_ecdsa; /* no ecdsa signature case (< TLSv1.2) */
2554 else
2555 node = node_rsa; /* no rsa signature case (far far away) */
2556
William Lallemand94bd3192020-08-14 14:43:35 +02002557 if (node) {
2558 /* switch ctx */
2559 struct ssl_bind_conf *conf = container_of(node, struct sni_ctx, name)->conf;
2560 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
2561 if (conf) {
2562 methodVersions[conf->ssl_methods.min].ssl_set_version(ssl, SET_MIN);
2563 methodVersions[conf->ssl_methods.max].ssl_set_version(ssl, SET_MAX);
2564 if (conf->early_data)
2565 allow_early = 1;
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002566 }
William Lallemand94bd3192020-08-14 14:43:35 +02002567 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
2568 goto allow_early;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002569 }
William Lallemand150bfa82019-09-19 17:12:49 +02002570
William Lallemand02010472019-10-18 11:02:19 +02002571 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002572#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002573 if (s->generate_certs && ssl_sock_generate_certificate(trash.area, s, ssl)) {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002574 /* switch ctx done in ssl_sock_generate_certificate */
Olivier Houchardc2aae742017-09-22 18:26:28 +02002575 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002576 }
2577#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002578 if (!s->strict_sni) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002579 /* no certificate match, is the default_ctx */
William Lallemand21724f02019-11-04 17:56:13 +01002580 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002581 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002582 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
William Lallemand0f2291b2021-11-18 17:46:26 +01002583 goto allow_early;
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002584 }
William Lallemand0f2291b2021-11-18 17:46:26 +01002585
2586 /* other cases fallback on abort, if strict-sni is set but no node was found */
2587
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002588 abort:
2589 /* abort handshake (was SSL_TLSEXT_ERR_ALERT_FATAL) */
2590 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002591#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002592 return ssl_select_cert_error;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002593#else
2594 *al = SSL_AD_UNRECOGNIZED_NAME;
2595 return 0;
2596#endif
William Lallemand0f2291b2021-11-18 17:46:26 +01002597
2598allow_early:
2599#ifdef OPENSSL_IS_BORINGSSL
2600 if (allow_early)
2601 SSL_set_early_data_enabled(ssl, 1);
2602#else
2603 if (!allow_early)
2604 SSL_set_max_early_data(ssl, 0);
2605#endif
2606 return 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002607}
2608
William Lallemand0faf5262021-11-18 15:25:16 +01002609#else /* ! HAVE_SSL_CLIENT_HELLO_CB */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002610
Emeric Brunfc0421f2012-09-07 17:30:07 +02002611/* Sets the SSL ctx of <ssl> to match the advertised server name. Returns a
2612 * warning when no match is found, which implies the default (first) cert
2613 * will keep being used.
2614 */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002615static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *priv)
Emeric Brunfc0421f2012-09-07 17:30:07 +02002616{
2617 const char *servername;
2618 const char *wildp = NULL;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002619 struct ebmb_node *node, *n;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002620 struct bind_conf *s = priv;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002621 int i;
2622 (void)al; /* shut gcc stupid warning */
2623
2624 servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002625 if (!servername) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002626#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002627 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl))
2628 return SSL_TLSEXT_ERR_OK;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002629#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002630 if (s->strict_sni)
2631 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002632 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002633 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002634 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002635 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002636 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02002637
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002638 for (i = 0; i < trash.size; i++) {
Emeric Brunfc0421f2012-09-07 17:30:07 +02002639 if (!servername[i])
2640 break;
Willy Tarreauf278eec2020-07-05 21:46:32 +02002641 trash.area[i] = tolower((unsigned char)servername[i]);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002642 if (!wildp && (trash.area[i] == '.'))
2643 wildp = &trash.area[i];
Emeric Brunfc0421f2012-09-07 17:30:07 +02002644 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002645 trash.area[i] = 0;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002646
William Lallemand150bfa82019-09-19 17:12:49 +02002647 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002648 node = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002649 /* lookup in full qualified names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002650 for (n = ebst_lookup(&s->sni_ctx, trash.area); n; n = ebmb_next_dup(n)) {
2651 /* lookup a not neg filter */
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002652 if (!container_of(n, struct sni_ctx, name)->neg) {
2653 node = n;
2654 break;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002655 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002656 }
2657 if (!node && wildp) {
2658 /* lookup in wildcards names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002659 for (n = ebst_lookup(&s->sni_w_ctx, wildp); n; n = ebmb_next_dup(n)) {
2660 /* lookup a not neg filter */
2661 if (!container_of(n, struct sni_ctx, name)->neg) {
2662 node = n;
2663 break;
2664 }
2665 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002666 }
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002667 if (!node) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002668#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002669 if (s->generate_certs && ssl_sock_generate_certificate(servername, s, ssl)) {
2670 /* switch ctx done in ssl_sock_generate_certificate */
William Lallemand150bfa82019-09-19 17:12:49 +02002671 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002672 return SSL_TLSEXT_ERR_OK;
2673 }
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002674#endif
William Lallemand21724f02019-11-04 17:56:13 +01002675 if (s->strict_sni) {
2676 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002677 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002678 }
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002679 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002680 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002681 return SSL_TLSEXT_ERR_OK;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002682 }
2683
2684 /* switch ctx */
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002685 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
William Lallemand150bfa82019-09-19 17:12:49 +02002686 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emeric Brunfc0421f2012-09-07 17:30:07 +02002687 return SSL_TLSEXT_ERR_OK;
2688}
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002689#endif /* (!) OPENSSL_IS_BORINGSSL */
Emeric Brunfc0421f2012-09-07 17:30:07 +02002690#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
2691
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002692#ifndef OPENSSL_NO_DH
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002693
2694static DH * ssl_get_dh_1024(void)
2695{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002696 static unsigned char dh1024_p[]={
2697 0xFA,0xF9,0x2A,0x22,0x2A,0xA7,0x7F,0xE1,0x67,0x4E,0x53,0xF7,
2698 0x56,0x13,0xC3,0xB1,0xE3,0x29,0x6B,0x66,0x31,0x6A,0x7F,0xB3,
2699 0xC2,0x68,0x6B,0xCB,0x1D,0x57,0x39,0x1D,0x1F,0xFF,0x1C,0xC9,
2700 0xA6,0xA4,0x98,0x82,0x31,0x5D,0x25,0xFF,0x8A,0xE0,0x73,0x96,
2701 0x81,0xC8,0x83,0x79,0xC1,0x5A,0x04,0xF8,0x37,0x0D,0xA8,0x3D,
2702 0xAE,0x74,0xBC,0xDB,0xB6,0xA4,0x75,0xD9,0x71,0x8A,0xA0,0x17,
2703 0x9E,0x2D,0xC8,0xA8,0xDF,0x2C,0x5F,0x82,0x95,0xF8,0x92,0x9B,
2704 0xA7,0x33,0x5F,0x89,0x71,0xC8,0x2D,0x6B,0x18,0x86,0xC4,0x94,
2705 0x22,0xA5,0x52,0x8D,0xF6,0xF6,0xD2,0x37,0x92,0x0F,0xA5,0xCC,
2706 0xDB,0x7B,0x1D,0x3D,0xA1,0x31,0xB7,0x80,0x8F,0x0B,0x67,0x5E,
2707 0x36,0xA5,0x60,0x0C,0xF1,0x95,0x33,0x8B,
2708 };
2709 static unsigned char dh1024_g[]={
2710 0x02,
2711 };
2712
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002713 BIGNUM *p;
2714 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002715 DH *dh = DH_new();
2716 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002717 p = BN_bin2bn(dh1024_p, sizeof dh1024_p, NULL);
2718 g = BN_bin2bn(dh1024_g, sizeof dh1024_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002719
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002720 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002721 DH_free(dh);
2722 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002723 } else {
2724 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002725 }
2726 }
2727 return dh;
2728}
2729
2730static DH *ssl_get_dh_2048(void)
2731{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002732 static unsigned char dh2048_p[]={
2733 0xEC,0x86,0xF8,0x70,0xA0,0x33,0x16,0xEC,0x05,0x1A,0x73,0x59,
2734 0xCD,0x1F,0x8B,0xF8,0x29,0xE4,0xD2,0xCF,0x52,0xDD,0xC2,0x24,
2735 0x8D,0xB5,0x38,0x9A,0xFB,0x5C,0xA4,0xE4,0xB2,0xDA,0xCE,0x66,
2736 0x50,0x74,0xA6,0x85,0x4D,0x4B,0x1D,0x30,0xB8,0x2B,0xF3,0x10,
2737 0xE9,0xA7,0x2D,0x05,0x71,0xE7,0x81,0xDF,0x8B,0x59,0x52,0x3B,
2738 0x5F,0x43,0x0B,0x68,0xF1,0xDB,0x07,0xBE,0x08,0x6B,0x1B,0x23,
2739 0xEE,0x4D,0xCC,0x9E,0x0E,0x43,0xA0,0x1E,0xDF,0x43,0x8C,0xEC,
2740 0xBE,0xBE,0x90,0xB4,0x51,0x54,0xB9,0x2F,0x7B,0x64,0x76,0x4E,
2741 0x5D,0xD4,0x2E,0xAE,0xC2,0x9E,0xAE,0x51,0x43,0x59,0xC7,0x77,
2742 0x9C,0x50,0x3C,0x0E,0xED,0x73,0x04,0x5F,0xF1,0x4C,0x76,0x2A,
2743 0xD8,0xF8,0xCF,0xFC,0x34,0x40,0xD1,0xB4,0x42,0x61,0x84,0x66,
2744 0x42,0x39,0x04,0xF8,0x68,0xB2,0x62,0xD7,0x55,0xED,0x1B,0x74,
2745 0x75,0x91,0xE0,0xC5,0x69,0xC1,0x31,0x5C,0xDB,0x7B,0x44,0x2E,
2746 0xCE,0x84,0x58,0x0D,0x1E,0x66,0x0C,0xC8,0x44,0x9E,0xFD,0x40,
2747 0x08,0x67,0x5D,0xFB,0xA7,0x76,0x8F,0x00,0x11,0x87,0xE9,0x93,
2748 0xF9,0x7D,0xC4,0xBC,0x74,0x55,0x20,0xD4,0x4A,0x41,0x2F,0x43,
2749 0x42,0x1A,0xC1,0xF2,0x97,0x17,0x49,0x27,0x37,0x6B,0x2F,0x88,
2750 0x7E,0x1C,0xA0,0xA1,0x89,0x92,0x27,0xD9,0x56,0x5A,0x71,0xC1,
2751 0x56,0x37,0x7E,0x3A,0x9D,0x05,0xE7,0xEE,0x5D,0x8F,0x82,0x17,
2752 0xBC,0xE9,0xC2,0x93,0x30,0x82,0xF9,0xF4,0xC9,0xAE,0x49,0xDB,
2753 0xD0,0x54,0xB4,0xD9,0x75,0x4D,0xFA,0x06,0xB8,0xD6,0x38,0x41,
2754 0xB7,0x1F,0x77,0xF3,
2755 };
2756 static unsigned char dh2048_g[]={
2757 0x02,
2758 };
2759
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002760 BIGNUM *p;
2761 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002762 DH *dh = DH_new();
2763 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002764 p = BN_bin2bn(dh2048_p, sizeof dh2048_p, NULL);
2765 g = BN_bin2bn(dh2048_g, sizeof dh2048_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002766
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002767 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002768 DH_free(dh);
2769 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002770 } else {
2771 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002772 }
2773 }
2774 return dh;
2775}
2776
2777static DH *ssl_get_dh_4096(void)
2778{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002779 static unsigned char dh4096_p[]={
2780 0xDE,0x16,0x94,0xCD,0x99,0x58,0x07,0xF1,0xF7,0x32,0x96,0x11,
2781 0x04,0x82,0xD4,0x84,0x72,0x80,0x99,0x06,0xCA,0xF0,0xA3,0x68,
2782 0x07,0xCE,0x64,0x50,0xE7,0x74,0x45,0x20,0x80,0x5E,0x4D,0xAD,
2783 0xA5,0xB6,0xED,0xFA,0x80,0x6C,0x3B,0x35,0xC4,0x9A,0x14,0x6B,
2784 0x32,0xBB,0xFD,0x1F,0x17,0x8E,0xB7,0x1F,0xD6,0xFA,0x3F,0x7B,
2785 0xEE,0x16,0xA5,0x62,0x33,0x0D,0xED,0xBC,0x4E,0x58,0xE5,0x47,
2786 0x4D,0xE9,0xAB,0x8E,0x38,0xD3,0x6E,0x90,0x57,0xE3,0x22,0x15,
2787 0x33,0xBD,0xF6,0x43,0x45,0xB5,0x10,0x0A,0xBE,0x2C,0xB4,0x35,
2788 0xB8,0x53,0x8D,0xAD,0xFB,0xA7,0x1F,0x85,0x58,0x41,0x7A,0x79,
2789 0x20,0x68,0xB3,0xE1,0x3D,0x08,0x76,0xBF,0x86,0x0D,0x49,0xE3,
2790 0x82,0x71,0x8C,0xB4,0x8D,0x81,0x84,0xD4,0xE7,0xBE,0x91,0xDC,
2791 0x26,0x39,0x48,0x0F,0x35,0xC4,0xCA,0x65,0xE3,0x40,0x93,0x52,
2792 0x76,0x58,0x7D,0xDD,0x51,0x75,0xDC,0x69,0x61,0xBF,0x47,0x2C,
2793 0x16,0x68,0x2D,0xC9,0x29,0xD3,0xE6,0xC0,0x99,0x48,0xA0,0x9A,
2794 0xC8,0x78,0xC0,0x6D,0x81,0x67,0x12,0x61,0x3F,0x71,0xBA,0x41,
2795 0x1F,0x6C,0x89,0x44,0x03,0xBA,0x3B,0x39,0x60,0xAA,0x28,0x55,
2796 0x59,0xAE,0xB8,0xFA,0xCB,0x6F,0xA5,0x1A,0xF7,0x2B,0xDD,0x52,
2797 0x8A,0x8B,0xE2,0x71,0xA6,0x5E,0x7E,0xD8,0x2E,0x18,0xE0,0x66,
2798 0xDF,0xDD,0x22,0x21,0x99,0x52,0x73,0xA6,0x33,0x20,0x65,0x0E,
2799 0x53,0xE7,0x6B,0x9B,0xC5,0xA3,0x2F,0x97,0x65,0x76,0xD3,0x47,
2800 0x23,0x77,0x12,0xB6,0x11,0x7B,0x24,0xED,0xF1,0xEF,0xC0,0xE2,
2801 0xA3,0x7E,0x67,0x05,0x3E,0x96,0x4D,0x45,0xC2,0x18,0xD1,0x73,
2802 0x9E,0x07,0xF3,0x81,0x6E,0x52,0x63,0xF6,0x20,0x76,0xB9,0x13,
2803 0xD2,0x65,0x30,0x18,0x16,0x09,0x16,0x9E,0x8F,0xF1,0xD2,0x10,
2804 0x5A,0xD3,0xD4,0xAF,0x16,0x61,0xDA,0x55,0x2E,0x18,0x5E,0x14,
2805 0x08,0x54,0x2E,0x2A,0x25,0xA2,0x1A,0x9B,0x8B,0x32,0xA9,0xFD,
2806 0xC2,0x48,0x96,0xE1,0x80,0xCA,0xE9,0x22,0x17,0xBB,0xCE,0x3E,
2807 0x9E,0xED,0xC7,0xF1,0x1F,0xEC,0x17,0x21,0xDC,0x7B,0x82,0x48,
2808 0x8E,0xBB,0x4B,0x9D,0x5B,0x04,0x04,0xDA,0xDB,0x39,0xDF,0x01,
2809 0x40,0xC3,0xAA,0x26,0x23,0x89,0x75,0xC6,0x0B,0xD0,0xA2,0x60,
2810 0x6A,0xF1,0xCC,0x65,0x18,0x98,0x1B,0x52,0xD2,0x74,0x61,0xCC,
2811 0xBD,0x60,0xAE,0xA3,0xA0,0x66,0x6A,0x16,0x34,0x92,0x3F,0x41,
2812 0x40,0x31,0x29,0xC0,0x2C,0x63,0xB2,0x07,0x8D,0xEB,0x94,0xB8,
2813 0xE8,0x47,0x92,0x52,0x93,0x6A,0x1B,0x7E,0x1A,0x61,0xB3,0x1B,
2814 0xF0,0xD6,0x72,0x9B,0xF1,0xB0,0xAF,0xBF,0x3E,0x65,0xEF,0x23,
2815 0x1D,0x6F,0xFF,0x70,0xCD,0x8A,0x4C,0x8A,0xA0,0x72,0x9D,0xBE,
2816 0xD4,0xBB,0x24,0x47,0x4A,0x68,0xB5,0xF5,0xC6,0xD5,0x7A,0xCD,
2817 0xCA,0x06,0x41,0x07,0xAD,0xC2,0x1E,0xE6,0x54,0xA7,0xAD,0x03,
2818 0xD9,0x12,0xC1,0x9C,0x13,0xB1,0xC9,0x0A,0x43,0x8E,0x1E,0x08,
2819 0xCE,0x50,0x82,0x73,0x5F,0xA7,0x55,0x1D,0xD9,0x59,0xAC,0xB5,
2820 0xEA,0x02,0x7F,0x6C,0x5B,0x74,0x96,0x98,0x67,0x24,0xA3,0x0F,
2821 0x15,0xFC,0xA9,0x7D,0x3E,0x67,0xD1,0x70,0xF8,0x97,0xF3,0x67,
2822 0xC5,0x8C,0x88,0x44,0x08,0x02,0xC7,0x2B,
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002823 };
Remi Gacogned3a341a2015-05-29 16:26:17 +02002824 static unsigned char dh4096_g[]={
2825 0x02,
2826 };
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002827
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002828 BIGNUM *p;
2829 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002830 DH *dh = DH_new();
2831 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002832 p = BN_bin2bn(dh4096_p, sizeof dh4096_p, NULL);
2833 g = BN_bin2bn(dh4096_g, sizeof dh4096_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002834
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002835 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002836 DH_free(dh);
2837 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002838 } else {
2839 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002840 }
2841 }
2842 return dh;
2843}
2844
2845/* Returns Diffie-Hellman parameters matching the private key length
Willy Tarreauef934602016-12-22 23:12:01 +01002846 but not exceeding global_ssl.default_dh_param */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002847static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen)
2848{
2849 DH *dh = NULL;
2850 EVP_PKEY *pkey = SSL_get_privatekey(ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002851 int type;
2852
2853 type = pkey ? EVP_PKEY_base_id(pkey) : EVP_PKEY_NONE;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002854
2855 /* The keylen supplied by OpenSSL can only be 512 or 1024.
2856 See ssl3_send_server_key_exchange() in ssl/s3_srvr.c
2857 */
2858 if (type == EVP_PKEY_RSA || type == EVP_PKEY_DSA) {
2859 keylen = EVP_PKEY_bits(pkey);
2860 }
2861
Willy Tarreauef934602016-12-22 23:12:01 +01002862 if (keylen > global_ssl.default_dh_param) {
2863 keylen = global_ssl.default_dh_param;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002864 }
2865
Remi Gacogned3a341a2015-05-29 16:26:17 +02002866 if (keylen >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002867 dh = local_dh_4096;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002868 }
2869 else if (keylen >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002870 dh = local_dh_2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002871 }
2872 else {
Remi Gacogne8de54152014-07-15 11:36:40 +02002873 dh = local_dh_1024;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002874 }
2875
2876 return dh;
2877}
2878
Remi Gacogne47783ef2015-05-29 15:53:22 +02002879static DH * ssl_sock_get_dh_from_file(const char *filename)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002880{
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002881 DH *dh = NULL;
Remi Gacogne47783ef2015-05-29 15:53:22 +02002882 BIO *in = BIO_new(BIO_s_file());
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002883
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002884 if (in == NULL)
2885 goto end;
2886
Remi Gacogne47783ef2015-05-29 15:53:22 +02002887 if (BIO_read_filename(in, filename) <= 0)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002888 goto end;
2889
Remi Gacogne47783ef2015-05-29 15:53:22 +02002890 dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
2891
2892end:
2893 if (in)
2894 BIO_free(in);
2895
Emeric Brune1b4ed42018-08-16 15:14:12 +02002896 ERR_clear_error();
2897
Remi Gacogne47783ef2015-05-29 15:53:22 +02002898 return dh;
2899}
2900
2901int ssl_sock_load_global_dh_param_from_file(const char *filename)
2902{
2903 global_dh = ssl_sock_get_dh_from_file(filename);
2904
2905 if (global_dh) {
2906 return 0;
2907 }
2908
2909 return -1;
2910}
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002911#endif
2912
William Lallemand9117de92019-10-04 00:29:42 +02002913/* This function allocates a sni_ctx and adds it to the ckch_inst */
William Lallemand1d29c742019-10-04 00:53:29 +02002914static int ckch_inst_add_cert_sni(SSL_CTX *ctx, struct ckch_inst *ckch_inst,
William Lallemand9117de92019-10-04 00:29:42 +02002915 struct bind_conf *s, struct ssl_bind_conf *conf,
2916 struct pkey_info kinfo, char *name, int order)
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002917{
2918 struct sni_ctx *sc;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002919 int wild = 0, neg = 0;
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002920
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002921 if (*name == '!') {
2922 neg = 1;
2923 name++;
2924 }
2925 if (*name == '*') {
2926 wild = 1;
2927 name++;
2928 }
2929 /* !* filter is a nop */
2930 if (neg && wild)
2931 return order;
2932 if (*name) {
2933 int j, len;
2934 len = strlen(name);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002935 for (j = 0; j < len && j < trash.size; j++)
Willy Tarreauf278eec2020-07-05 21:46:32 +02002936 trash.area[j] = tolower((unsigned char)name[j]);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002937 if (j >= trash.size)
William Lallemandfe49bb32019-10-03 23:46:33 +02002938 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002939 trash.area[j] = 0;
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002940
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002941 sc = malloc(sizeof(struct sni_ctx) + len + 1);
Thierry FOURNIER / OZON.IO7a3bd3b2016-10-06 10:35:29 +02002942 if (!sc)
William Lallemandfe49bb32019-10-03 23:46:33 +02002943 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002944 memcpy(sc->name.key, trash.area, len + 1);
William Lallemand02e19a52020-04-08 16:11:26 +02002945 SSL_CTX_up_ref(ctx);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002946 sc->ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002947 sc->conf = conf;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002948 sc->kinfo = kinfo;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002949 sc->order = order++;
2950 sc->neg = neg;
William Lallemand1d29c742019-10-04 00:53:29 +02002951 sc->wild = wild;
2952 sc->name.node.leaf_p = NULL;
William Lallemandcfca1422020-03-05 10:17:47 +01002953 sc->ckch_inst = ckch_inst;
Willy Tarreau2b718102021-04-21 07:32:39 +02002954 LIST_APPEND(&ckch_inst->sni_ctx, &sc->by_ckch_inst);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002955 }
2956 return order;
2957}
2958
William Lallemand6af03992019-07-23 15:00:54 +02002959/*
William Lallemand1d29c742019-10-04 00:53:29 +02002960 * Insert the sni_ctxs that are listed in the ckch_inst, in the bind_conf's sni_ctx tree
2961 * This function can't return an error.
2962 *
2963 * *CAUTION*: The caller must lock the sni tree if called in multithreading mode
2964 */
William Lallemandc756bbd2020-05-13 17:23:59 +02002965void ssl_sock_load_cert_sni(struct ckch_inst *ckch_inst, struct bind_conf *bind_conf)
William Lallemand1d29c742019-10-04 00:53:29 +02002966{
2967
2968 struct sni_ctx *sc0, *sc0b, *sc1;
2969 struct ebmb_node *node;
2970
2971 list_for_each_entry_safe(sc0, sc0b, &ckch_inst->sni_ctx, by_ckch_inst) {
2972
2973 /* ignore if sc0 was already inserted in a tree */
2974 if (sc0->name.node.leaf_p)
2975 continue;
2976
2977 /* Check for duplicates. */
2978 if (sc0->wild)
2979 node = ebst_lookup(&bind_conf->sni_w_ctx, (char *)sc0->name.key);
2980 else
2981 node = ebst_lookup(&bind_conf->sni_ctx, (char *)sc0->name.key);
2982
2983 for (; node; node = ebmb_next_dup(node)) {
2984 sc1 = ebmb_entry(node, struct sni_ctx, name);
2985 if (sc1->ctx == sc0->ctx && sc1->conf == sc0->conf
2986 && sc1->neg == sc0->neg && sc1->wild == sc0->wild) {
2987 /* it's a duplicate, we should remove and free it */
Willy Tarreau2b718102021-04-21 07:32:39 +02002988 LIST_DELETE(&sc0->by_ckch_inst);
William Lallemand02e19a52020-04-08 16:11:26 +02002989 SSL_CTX_free(sc0->ctx);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01002990 ha_free(&sc0);
William Lallemande15029b2019-10-14 10:46:58 +02002991 break;
William Lallemand1d29c742019-10-04 00:53:29 +02002992 }
2993 }
2994
2995 /* if duplicate, ignore the insertion */
2996 if (!sc0)
2997 continue;
2998
2999 if (sc0->wild)
3000 ebst_insert(&bind_conf->sni_w_ctx, &sc0->name);
3001 else
3002 ebst_insert(&bind_conf->sni_ctx, &sc0->name);
Remi Tricot-Le Breton8218aed2021-03-17 14:56:54 +01003003 }
William Lallemand21724f02019-11-04 17:56:13 +01003004
Remi Tricot-Le Breton8218aed2021-03-17 14:56:54 +01003005 /* replace the default_ctx if required with the instance's ctx. */
3006 if (ckch_inst->is_default) {
3007 SSL_CTX_free(bind_conf->default_ctx);
3008 SSL_CTX_up_ref(ckch_inst->ctx);
3009 bind_conf->default_ctx = ckch_inst->ctx;
William Lallemand1d29c742019-10-04 00:53:29 +02003010 }
3011}
3012
3013/*
William Lallemande3af8fb2019-10-08 11:36:53 +02003014 * tree used to store the ckchs ordered by filename/bundle name
William Lallemand6af03992019-07-23 15:00:54 +02003015 */
William Lallemande3af8fb2019-10-08 11:36:53 +02003016struct eb_root ckchs_tree = EB_ROOT_UNIQUE;
William Lallemand6af03992019-07-23 15:00:54 +02003017
William Lallemand2954c472020-03-06 21:54:13 +01003018/* tree of crtlist (crt-list/directory) */
William Lallemandc756bbd2020-05-13 17:23:59 +02003019struct eb_root crtlists_tree = EB_ROOT_UNIQUE;
William Lallemandfa892222019-07-23 16:06:08 +02003020
Emeric Brun7a883362019-10-17 13:27:40 +02003021/* Loads Diffie-Hellman parameter from a ckchs to an SSL_CTX.
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05003022 * If there is no DH parameter available in the ckchs, the global
Emeric Brun7a883362019-10-17 13:27:40 +02003023 * DH parameter is loaded into the SSL_CTX and if there is no
3024 * DH parameter available in ckchs nor in global, the default
3025 * DH parameters are applied on the SSL_CTX.
3026 * Returns a bitfield containing the flags:
3027 * ERR_FATAL in any fatal error case
3028 * ERR_ALERT if a reason of the error is availabine in err
3029 * ERR_WARN if a warning is available into err
3030 * The value 0 means there is no error nor warning and
3031 * the operation succeed.
3032 */
William Lallemandfa892222019-07-23 16:06:08 +02003033#ifndef OPENSSL_NO_DH
Emeric Brun7a883362019-10-17 13:27:40 +02003034static int ssl_sock_load_dh_params(SSL_CTX *ctx, const struct cert_key_and_chain *ckch,
3035 const char *path, char **err)
William Lallemandfa892222019-07-23 16:06:08 +02003036{
Emeric Brun7a883362019-10-17 13:27:40 +02003037 int ret = 0;
William Lallemandfa892222019-07-23 16:06:08 +02003038 DH *dh = NULL;
3039
William Lallemanda8c73742019-07-31 18:31:34 +02003040 if (ckch && ckch->dh) {
William Lallemandfa892222019-07-23 16:06:08 +02003041 dh = ckch->dh;
Emeric Bruna9363eb2019-10-17 14:53:03 +02003042 if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
3043 memprintf(err, "%sunable to load the DH parameter specified in '%s'",
3044 err && *err ? *err : "", path);
3045#if defined(SSL_CTX_set_dh_auto)
3046 SSL_CTX_set_dh_auto(ctx, 1);
3047 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3048 err && *err ? *err : "");
3049#else
3050 memprintf(err, "%s, DH ciphers won't be available.\n",
3051 err && *err ? *err : "");
3052#endif
3053 ret |= ERR_WARN;
3054 goto end;
3055 }
William Lallemandfa892222019-07-23 16:06:08 +02003056
3057 if (ssl_dh_ptr_index >= 0) {
3058 /* store a pointer to the DH params to avoid complaining about
3059 ssl-default-dh-param not being set for this SSL_CTX */
3060 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, dh);
3061 }
3062 }
3063 else if (global_dh) {
Emeric Bruna9363eb2019-10-17 14:53:03 +02003064 if (!SSL_CTX_set_tmp_dh(ctx, global_dh)) {
3065 memprintf(err, "%sunable to use the global DH parameter for certificate '%s'",
3066 err && *err ? *err : "", path);
3067#if defined(SSL_CTX_set_dh_auto)
3068 SSL_CTX_set_dh_auto(ctx, 1);
3069 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3070 err && *err ? *err : "");
3071#else
3072 memprintf(err, "%s, DH ciphers won't be available.\n",
3073 err && *err ? *err : "");
3074#endif
3075 ret |= ERR_WARN;
3076 goto end;
3077 }
William Lallemandfa892222019-07-23 16:06:08 +02003078 }
3079 else {
3080 /* Clear openssl global errors stack */
3081 ERR_clear_error();
3082
Willy Tarreau6d27a922020-11-05 19:38:05 +01003083 if (global_ssl.default_dh_param && global_ssl.default_dh_param <= 1024) {
William Lallemandfa892222019-07-23 16:06:08 +02003084 /* we are limited to DH parameter of 1024 bits anyway */
3085 if (local_dh_1024 == NULL)
3086 local_dh_1024 = ssl_get_dh_1024();
3087
Emeric Brun7a883362019-10-17 13:27:40 +02003088 if (local_dh_1024 == NULL) {
3089 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3090 err && *err ? *err : "", path);
3091 ret |= ERR_ALERT | ERR_FATAL;
William Lallemandfa892222019-07-23 16:06:08 +02003092 goto end;
Emeric Brun7a883362019-10-17 13:27:40 +02003093 }
William Lallemandfa892222019-07-23 16:06:08 +02003094
Emeric Bruna9363eb2019-10-17 14:53:03 +02003095 if (!SSL_CTX_set_tmp_dh(ctx, local_dh_1024)) {
3096 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3097 err && *err ? *err : "", path);
3098#if defined(SSL_CTX_set_dh_auto)
3099 SSL_CTX_set_dh_auto(ctx, 1);
3100 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3101 err && *err ? *err : "");
3102#else
3103 memprintf(err, "%s, DH ciphers won't be available.\n",
3104 err && *err ? *err : "");
3105#endif
3106 ret |= ERR_WARN;
3107 goto end;
3108 }
William Lallemandfa892222019-07-23 16:06:08 +02003109 }
3110 else {
3111 SSL_CTX_set_tmp_dh_callback(ctx, ssl_get_tmp_dh);
3112 }
William Lallemand8d0f8932019-10-17 18:03:58 +02003113 }
3114
William Lallemandf9568fc2019-10-16 18:27:58 +02003115end:
William Lallemandf9568fc2019-10-16 18:27:58 +02003116 ERR_clear_error();
William Lallemandf9568fc2019-10-16 18:27:58 +02003117 return ret;
3118}
Emmanuel Hocdet54227d82019-07-30 17:04:01 +02003119#endif
William Lallemandfa892222019-07-23 16:06:08 +02003120
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003121
3122/* Load a certificate chain into an SSL context.
Emeric Bruna96b5822019-10-17 13:25:14 +02003123 * Returns a bitfield containing the flags:
3124 * ERR_FATAL in any fatal error case
3125 * ERR_ALERT if the reason of the error is available in err
3126 * ERR_WARN if a warning is available into err
3127 * The value 0 means there is no error nor warning and
3128 * the operation succeed.
yanbzhu488a4d22015-12-01 15:16:07 -05003129 */
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003130static int ssl_sock_load_cert_chain(const char *path, const struct cert_key_and_chain *ckch,
3131 SSL_CTX *ctx, STACK_OF(X509) **find_chain, char **err)
yanbzhu488a4d22015-12-01 15:16:07 -05003132{
Emeric Bruna96b5822019-10-17 13:25:14 +02003133 int errcode = 0;
3134
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003135 if (find_chain == NULL) {
3136 errcode |= ERR_FATAL;
3137 goto end;
yanbzhu488a4d22015-12-01 15:16:07 -05003138 }
3139
3140 if (!SSL_CTX_use_certificate(ctx, ckch->cert)) {
3141 memprintf(err, "%sunable to load SSL certificate into SSL Context '%s'.\n",
3142 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003143 errcode |= ERR_ALERT | ERR_FATAL;
3144 goto end;
yanbzhu488a4d22015-12-01 15:16:07 -05003145 }
3146
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003147 if (ckch->chain) {
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003148 *find_chain = ckch->chain;
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003149 } else {
3150 /* Find Certificate Chain in global */
3151 struct issuer_chain *issuer;
Emmanuel Hocdetef87e0a2020-03-23 11:29:11 +01003152 issuer = ssl_get0_issuer_chain(ckch->cert);
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003153 if (issuer)
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003154 *find_chain = issuer->chain;
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003155 }
William Lallemand85888572020-02-27 14:48:35 +01003156
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003157 if (!*find_chain) {
William Lallemand935d8292020-08-12 20:02:10 +02003158 /* always put a null chain stack in the SSL_CTX so it does not
3159 * try to build the chain from the verify store */
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003160 *find_chain = sk_X509_new_null();
William Lallemand935d8292020-08-12 20:02:10 +02003161 }
3162
William Lallemandf187ce62020-06-02 18:27:20 +02003163 /* Load all certs in the ckch into the ctx_chain for the ssl_ctx */
William Lallemandf187ce62020-06-02 18:27:20 +02003164#ifdef SSL_CTX_set1_chain
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003165 if (!SSL_CTX_set1_chain(ctx, *find_chain)) {
William Lallemand935d8292020-08-12 20:02:10 +02003166 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'. Make sure you are linking against Openssl >= 1.0.2.\n",
3167 err && *err ? *err : "", path);
3168 errcode |= ERR_ALERT | ERR_FATAL;
3169 goto end;
3170 }
William Lallemandf187ce62020-06-02 18:27:20 +02003171#else
3172 { /* legacy compat (< openssl 1.0.2) */
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003173 X509 *ca;
William Lallemandf187ce62020-06-02 18:27:20 +02003174 STACK_OF(X509) *chain;
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003175 chain = X509_chain_up_ref(*find_chain);
William Lallemandf187ce62020-06-02 18:27:20 +02003176 while ((ca = sk_X509_shift(chain)))
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003177 if (!SSL_CTX_add_extra_chain_cert(ctx, ca)) {
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003178 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3179 err && *err ? *err : "", path);
William Lallemandf187ce62020-06-02 18:27:20 +02003180 X509_free(ca);
3181 sk_X509_pop_free(chain, X509_free);
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003182 errcode |= ERR_ALERT | ERR_FATAL;
3183 goto end;
3184 }
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003185 }
William Lallemandf187ce62020-06-02 18:27:20 +02003186#endif
yanbzhu488a4d22015-12-01 15:16:07 -05003187
William Lallemand9a1d8392020-08-10 17:28:23 +02003188#ifdef SSL_CTX_build_cert_chain
William Lallemandbf298af2020-08-10 16:18:45 +02003189 /* remove the Root CA from the SSL_CTX if the option is activated */
3190 if (global_ssl.skip_self_issued_ca) {
3191 if (!SSL_CTX_build_cert_chain(ctx, SSL_BUILD_CHAIN_FLAG_NO_ROOT|SSL_BUILD_CHAIN_FLAG_UNTRUSTED|SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR)) {
3192 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3193 err && *err ? *err : "", path);
3194 errcode |= ERR_ALERT | ERR_FATAL;
3195 goto end;
3196 }
3197 }
William Lallemand9a1d8392020-08-10 17:28:23 +02003198#endif
William Lallemandbf298af2020-08-10 16:18:45 +02003199
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003200end:
3201 return errcode;
3202}
3203
3204
3205/* Loads the info in ckch into ctx
3206 * Returns a bitfield containing the flags:
3207 * ERR_FATAL in any fatal error case
3208 * ERR_ALERT if the reason of the error is available in err
3209 * ERR_WARN if a warning is available into err
3210 * The value 0 means there is no error nor warning and
3211 * the operation succeed.
3212 */
3213static int ssl_sock_put_ckch_into_ctx(const char *path, const struct cert_key_and_chain *ckch, SSL_CTX *ctx, char **err)
3214{
3215 int errcode = 0;
3216 STACK_OF(X509) *find_chain = NULL;
3217
3218 if (SSL_CTX_use_PrivateKey(ctx, ckch->key) <= 0) {
3219 memprintf(err, "%sunable to load SSL private key into SSL Context '%s'.\n",
3220 err && *err ? *err : "", path);
3221 errcode |= ERR_ALERT | ERR_FATAL;
3222 return errcode;
3223 }
3224
3225 /* Load certificate chain */
3226 errcode |= ssl_sock_load_cert_chain(path, ckch, ctx, &find_chain, err);
3227 if (errcode & ERR_CODE)
3228 goto end;
3229
William Lallemandfa892222019-07-23 16:06:08 +02003230#ifndef OPENSSL_NO_DH
3231 /* store a NULL pointer to indicate we have not yet loaded
3232 a custom DH param file */
3233 if (ssl_dh_ptr_index >= 0) {
3234 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, NULL);
3235 }
3236
Emeric Brun7a883362019-10-17 13:27:40 +02003237 errcode |= ssl_sock_load_dh_params(ctx, ckch, path, err);
3238 if (errcode & ERR_CODE) {
William Lallemandfa892222019-07-23 16:06:08 +02003239 memprintf(err, "%sunable to load DH parameters from file '%s'.\n",
3240 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003241 goto end;
William Lallemandfa892222019-07-23 16:06:08 +02003242 }
3243#endif
3244
Ilya Shipitsin7bbf5862021-02-06 18:55:27 +05003245#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
William Lallemanda17f4112019-10-10 15:16:44 +02003246 if (sctl_ex_index >= 0 && ckch->sctl) {
3247 if (ssl_sock_load_sctl(ctx, ckch->sctl) < 0) {
3248 memprintf(err, "%s '%s.sctl' is present but cannot be read or parsed'.\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01003249 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003250 errcode |= ERR_ALERT | ERR_FATAL;
3251 goto end;
William Lallemanda17f4112019-10-10 15:16:44 +02003252 }
3253 }
3254#endif
3255
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01003256#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
William Lallemand246c0242019-10-11 08:59:13 +02003257 /* Load OCSP Info into context */
3258 if (ckch->ocsp_response) {
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01003259 if (ssl_sock_load_ocsp(ctx, ckch, find_chain) < 0) {
Tim Duesterhus93128532019-11-23 23:45:10 +01003260 memprintf(err, "%s '%s.ocsp' is present and activates OCSP but it is impossible to compute the OCSP certificate ID (maybe the issuer could not be found)'.\n",
3261 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003262 errcode |= ERR_ALERT | ERR_FATAL;
3263 goto end;
William Lallemand246c0242019-10-11 08:59:13 +02003264 }
3265 }
William Lallemand246c0242019-10-11 08:59:13 +02003266#endif
3267
Emeric Bruna96b5822019-10-17 13:25:14 +02003268 end:
3269 return errcode;
yanbzhu488a4d22015-12-01 15:16:07 -05003270}
3271
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003272
3273/* Loads the info of a ckch built out of a backend certificate into an SSL ctx
3274 * Returns a bitfield containing the flags:
3275 * ERR_FATAL in any fatal error case
3276 * ERR_ALERT if the reason of the error is available in err
3277 * ERR_WARN if a warning is available into err
3278 * The value 0 means there is no error nor warning and
3279 * the operation succeed.
3280 */
3281static int ssl_sock_put_srv_ckch_into_ctx(const char *path, const struct cert_key_and_chain *ckch,
3282 SSL_CTX *ctx, char **err)
3283{
3284 int errcode = 0;
3285 STACK_OF(X509) *find_chain = NULL;
3286
3287 /* Load the private key */
3288 if (SSL_CTX_use_PrivateKey(ctx, ckch->key) <= 0) {
3289 memprintf(err, "%sunable to load SSL private key into SSL Context '%s'.\n",
3290 err && *err ? *err : "", path);
3291 errcode |= ERR_ALERT | ERR_FATAL;
3292 }
3293
3294 /* Load certificate chain */
3295 errcode |= ssl_sock_load_cert_chain(path, ckch, ctx, &find_chain, err);
3296 if (errcode & ERR_CODE)
3297 goto end;
3298
3299 if (SSL_CTX_check_private_key(ctx) <= 0) {
3300 memprintf(err, "%sinconsistencies between private key and certificate loaded from PEM file '%s'.\n",
3301 err && *err ? *err : "", path);
3302 errcode |= ERR_ALERT | ERR_FATAL;
3303 }
3304
3305end:
3306 return errcode;
3307}
3308
3309
William Lallemand614ca0d2019-10-07 13:52:11 +02003310/*
3311 * This function allocate a ckch_inst and create its snis
Emeric Brun054563d2019-10-17 13:16:58 +02003312 *
3313 * Returns a bitfield containing the flags:
3314 * ERR_FATAL in any fatal error case
3315 * ERR_ALERT if the reason of the error is available in err
3316 * ERR_WARN if a warning is available into err
William Lallemand614ca0d2019-10-07 13:52:11 +02003317 */
William Lallemandc756bbd2020-05-13 17:23:59 +02003318int ckch_inst_new_load_store(const char *path, struct ckch_store *ckchs, struct bind_conf *bind_conf,
Emeric Brun054563d2019-10-17 13:16:58 +02003319 struct ssl_bind_conf *ssl_conf, char **sni_filter, int fcount, struct ckch_inst **ckchi, char **err)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003320{
William Lallemandc9402072019-05-15 15:33:54 +02003321 SSL_CTX *ctx;
William Lallemandc9402072019-05-15 15:33:54 +02003322 int i;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003323 int order = 0;
3324 X509_NAME *xname;
3325 char *str;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003326 EVP_PKEY *pkey;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003327 struct pkey_info kinfo = { .sig = TLSEXT_signature_anonymous, .bits = 0 };
Emeric Brunfc0421f2012-09-07 17:30:07 +02003328#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3329 STACK_OF(GENERAL_NAME) *names;
3330#endif
William Lallemand36b84632019-07-18 19:28:17 +02003331 struct cert_key_and_chain *ckch;
William Lallemand614ca0d2019-10-07 13:52:11 +02003332 struct ckch_inst *ckch_inst = NULL;
Emeric Brun054563d2019-10-17 13:16:58 +02003333 int errcode = 0;
3334
3335 *ckchi = NULL;
William Lallemanda59191b2019-05-15 16:08:56 +02003336
William Lallemande3af8fb2019-10-08 11:36:53 +02003337 if (!ckchs || !ckchs->ckch)
Emeric Brun054563d2019-10-17 13:16:58 +02003338 return ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003339
William Lallemande3af8fb2019-10-08 11:36:53 +02003340 ckch = ckchs->ckch;
William Lallemand36b84632019-07-18 19:28:17 +02003341
William Lallemandc9402072019-05-15 15:33:54 +02003342 ctx = SSL_CTX_new(SSLv23_server_method());
3343 if (!ctx) {
3344 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3345 err && *err ? *err : "", path);
Emeric Brun054563d2019-10-17 13:16:58 +02003346 errcode |= ERR_ALERT | ERR_FATAL;
3347 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003348 }
3349
Emeric Bruna96b5822019-10-17 13:25:14 +02003350 errcode |= ssl_sock_put_ckch_into_ctx(path, ckch, ctx, err);
3351 if (errcode & ERR_CODE)
William Lallemand614ca0d2019-10-07 13:52:11 +02003352 goto error;
William Lallemand614ca0d2019-10-07 13:52:11 +02003353
3354 ckch_inst = ckch_inst_new();
3355 if (!ckch_inst) {
3356 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3357 err && *err ? *err : "", path);
Emeric Brun054563d2019-10-17 13:16:58 +02003358 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003359 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003360 }
3361
William Lallemand36b84632019-07-18 19:28:17 +02003362 pkey = X509_get_pubkey(ckch->cert);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003363 if (pkey) {
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003364 kinfo.bits = EVP_PKEY_bits(pkey);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003365 switch(EVP_PKEY_base_id(pkey)) {
3366 case EVP_PKEY_RSA:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003367 kinfo.sig = TLSEXT_signature_rsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003368 break;
3369 case EVP_PKEY_EC:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003370 kinfo.sig = TLSEXT_signature_ecdsa;
3371 break;
3372 case EVP_PKEY_DSA:
3373 kinfo.sig = TLSEXT_signature_dsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003374 break;
3375 }
3376 EVP_PKEY_free(pkey);
3377 }
3378
Emeric Brun50bcecc2013-04-22 13:05:23 +02003379 if (fcount) {
William Lallemandfe49bb32019-10-03 23:46:33 +02003380 while (fcount--) {
William Lallemand1d29c742019-10-04 00:53:29 +02003381 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, sni_filter[fcount], order);
William Lallemandfe49bb32019-10-03 23:46:33 +02003382 if (order < 0) {
3383 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003384 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003385 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003386 }
3387 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003388 }
3389 else {
Emeric Brunfc0421f2012-09-07 17:30:07 +02003390#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
William Lallemand36b84632019-07-18 19:28:17 +02003391 names = X509_get_ext_d2i(ckch->cert, NID_subject_alt_name, NULL, NULL);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003392 if (names) {
3393 for (i = 0; i < sk_GENERAL_NAME_num(names); i++) {
3394 GENERAL_NAME *name = sk_GENERAL_NAME_value(names, i);
3395 if (name->type == GEN_DNS) {
3396 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003397 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003398 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003399 if (order < 0) {
3400 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003401 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003402 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003403 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003404 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003405 }
3406 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003407 sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
Emeric Brunfc0421f2012-09-07 17:30:07 +02003408 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003409#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
William Lallemand36b84632019-07-18 19:28:17 +02003410 xname = X509_get_subject_name(ckch->cert);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003411 i = -1;
3412 while ((i = X509_NAME_get_index_by_NID(xname, NID_commonName, i)) != -1) {
3413 X509_NAME_ENTRY *entry = X509_NAME_get_entry(xname, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02003414 ASN1_STRING *value;
3415
3416 value = X509_NAME_ENTRY_get_data(entry);
3417 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003418 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003419 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003420 if (order < 0) {
3421 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003422 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003423 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003424 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003425 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003426 }
3427 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003428 /* we must not free the SSL_CTX anymore below, since it's already in
3429 * the tree, so it will be discovered and cleaned in time.
3430 */
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003431
Emeric Brunfc0421f2012-09-07 17:30:07 +02003432#ifndef SSL_CTRL_SET_TLSEXT_HOSTNAME
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003433 if (bind_conf->default_ctx) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +02003434 memprintf(err, "%sthis version of openssl cannot load multiple SSL certificates.\n",
3435 err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003436 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003437 goto error;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003438 }
3439#endif
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003440 if (!bind_conf->default_ctx) {
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003441 bind_conf->default_ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003442 bind_conf->default_ssl_conf = ssl_conf;
William Lallemand21724f02019-11-04 17:56:13 +01003443 ckch_inst->is_default = 1;
William Lallemand02e19a52020-04-08 16:11:26 +02003444 SSL_CTX_up_ref(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003445 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003446
Remi Tricot-Le Breton8218aed2021-03-17 14:56:54 +01003447 /* Always keep a reference to the newly constructed SSL_CTX in the
3448 * instance. This way if the instance has no SNIs, the SSL_CTX will
3449 * still be linked. */
3450 SSL_CTX_up_ref(ctx);
3451 ckch_inst->ctx = ctx;
3452
William Lallemand9117de92019-10-04 00:29:42 +02003453 /* everything succeed, the ckch instance can be used */
3454 ckch_inst->bind_conf = bind_conf;
William Lallemand150bfa82019-09-19 17:12:49 +02003455 ckch_inst->ssl_conf = ssl_conf;
William Lallemandcfca1422020-03-05 10:17:47 +01003456 ckch_inst->ckch_store = ckchs;
William Lallemand9117de92019-10-04 00:29:42 +02003457
William Lallemand02e19a52020-04-08 16:11:26 +02003458 SSL_CTX_free(ctx); /* we need to free the ctx since we incremented the refcount where it's used */
3459
Emeric Brun054563d2019-10-17 13:16:58 +02003460 *ckchi = ckch_inst;
3461 return errcode;
William Lallemandd9199372019-10-04 15:37:05 +02003462
3463error:
3464 /* free the allocated sni_ctxs */
William Lallemand614ca0d2019-10-07 13:52:11 +02003465 if (ckch_inst) {
William Lallemand02e19a52020-04-08 16:11:26 +02003466 if (ckch_inst->is_default)
3467 SSL_CTX_free(ctx);
3468
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003469 ckch_inst_free(ckch_inst);
William Lallemand614ca0d2019-10-07 13:52:11 +02003470 ckch_inst = NULL;
William Lallemandd9199372019-10-04 15:37:05 +02003471 }
William Lallemandd9199372019-10-04 15:37:05 +02003472 SSL_CTX_free(ctx);
3473
Emeric Brun054563d2019-10-17 13:16:58 +02003474 return errcode;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003475}
3476
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003477
3478/*
3479 * This function allocate a ckch_inst that will be used on the backend side
3480 * (server line)
3481 *
3482 * Returns a bitfield containing the flags:
3483 * ERR_FATAL in any fatal error case
3484 * ERR_ALERT if the reason of the error is available in err
3485 * ERR_WARN if a warning is available into err
3486 */
3487int ckch_inst_new_load_srv_store(const char *path, struct ckch_store *ckchs,
William Lallemand795bd9b2021-01-26 11:27:42 +01003488 struct ckch_inst **ckchi, char **err)
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003489{
3490 SSL_CTX *ctx;
3491 struct cert_key_and_chain *ckch;
3492 struct ckch_inst *ckch_inst = NULL;
3493 int errcode = 0;
3494
3495 *ckchi = NULL;
3496
3497 if (!ckchs || !ckchs->ckch)
3498 return ERR_FATAL;
3499
3500 ckch = ckchs->ckch;
3501
3502 ctx = SSL_CTX_new(SSLv23_client_method());
3503 if (!ctx) {
3504 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3505 err && *err ? *err : "", path);
3506 errcode |= ERR_ALERT | ERR_FATAL;
3507 goto error;
3508 }
3509
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003510 errcode |= ssl_sock_put_srv_ckch_into_ctx(path, ckch, ctx, err);
3511 if (errcode & ERR_CODE)
3512 goto error;
3513
3514 ckch_inst = ckch_inst_new();
3515 if (!ckch_inst) {
3516 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3517 err && *err ? *err : "", path);
3518 errcode |= ERR_ALERT | ERR_FATAL;
3519 goto error;
3520 }
3521
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003522 /* everything succeed, the ckch instance can be used */
3523 ckch_inst->bind_conf = NULL;
3524 ckch_inst->ssl_conf = NULL;
3525 ckch_inst->ckch_store = ckchs;
William Lallemand795bd9b2021-01-26 11:27:42 +01003526 ckch_inst->ctx = ctx;
William Lallemanddb26e2b2021-01-26 12:01:46 +01003527 ckch_inst->is_server_instance = 1;
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003528
3529 *ckchi = ckch_inst;
3530 return errcode;
3531
3532error:
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003533 SSL_CTX_free(ctx);
3534
3535 return errcode;
3536}
3537
Willy Tarreau8c5414a2019-10-16 17:06:25 +02003538/* Returns a set of ERR_* flags possibly with an error in <err>. */
William Lallemand614ca0d2019-10-07 13:52:11 +02003539static int ssl_sock_load_ckchs(const char *path, struct ckch_store *ckchs,
3540 struct bind_conf *bind_conf, struct ssl_bind_conf *ssl_conf,
William Lallemand24bde432020-03-09 16:48:43 +01003541 char **sni_filter, int fcount, struct ckch_inst **ckch_inst, char **err)
William Lallemand614ca0d2019-10-07 13:52:11 +02003542{
Emeric Brun054563d2019-10-17 13:16:58 +02003543 int errcode = 0;
William Lallemand614ca0d2019-10-07 13:52:11 +02003544
3545 /* we found the ckchs in the tree, we can use it directly */
William Lallemande7eb1fe2020-09-16 16:17:51 +02003546 errcode |= ckch_inst_new_load_store(path, ckchs, bind_conf, ssl_conf, sni_filter, fcount, ckch_inst, err);
William Lallemand614ca0d2019-10-07 13:52:11 +02003547
Emeric Brun054563d2019-10-17 13:16:58 +02003548 if (errcode & ERR_CODE)
3549 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003550
William Lallemand24bde432020-03-09 16:48:43 +01003551 ssl_sock_load_cert_sni(*ckch_inst, bind_conf);
William Lallemand614ca0d2019-10-07 13:52:11 +02003552
3553 /* succeed, add the instance to the ckch_store's list of instance */
Willy Tarreau2b718102021-04-21 07:32:39 +02003554 LIST_APPEND(&ckchs->ckch_inst, &((*ckch_inst)->by_ckchs));
Emeric Brun054563d2019-10-17 13:16:58 +02003555 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003556}
3557
William Lallemanddb26e2b2021-01-26 12:01:46 +01003558/* This function generates a <struct ckch_inst *> for a <struct server *>, and
3559 * fill the SSL_CTX of the server.
3560 *
3561 * Returns a set of ERR_* flags possibly with an error in <err>. */
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003562static int ssl_sock_load_srv_ckchs(const char *path, struct ckch_store *ckchs,
William Lallemanddb26e2b2021-01-26 12:01:46 +01003563 struct server *server, struct ckch_inst **ckch_inst, char **err)
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003564{
3565 int errcode = 0;
3566
3567 /* we found the ckchs in the tree, we can use it directly */
William Lallemand795bd9b2021-01-26 11:27:42 +01003568 errcode |= ckch_inst_new_load_srv_store(path, ckchs, ckch_inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003569
3570 if (errcode & ERR_CODE)
3571 return errcode;
3572
William Lallemanddb26e2b2021-01-26 12:01:46 +01003573 (*ckch_inst)->server = server;
3574 /* Keep the reference to the SSL_CTX in the server. */
3575 SSL_CTX_up_ref((*ckch_inst)->ctx);
3576 server->ssl_ctx.ctx = (*ckch_inst)->ctx;
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003577 /* succeed, add the instance to the ckch_store's list of instance */
Willy Tarreau2b718102021-04-21 07:32:39 +02003578 LIST_APPEND(&ckchs->ckch_inst, &((*ckch_inst)->by_ckchs));
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003579 return errcode;
3580}
3581
William Lallemand6be66ec2020-03-06 22:26:32 +01003582
William Lallemand4c68bba2020-03-30 18:45:10 +02003583
3584
3585/* Make sure openssl opens /dev/urandom before the chroot. The work is only
3586 * done once. Zero is returned if the operation fails. No error is returned
3587 * if the random is said as not implemented, because we expect that openssl
3588 * will use another method once needed.
3589 */
3590static int ssl_initialize_random()
3591{
3592 unsigned char random;
3593 static int random_initialized = 0;
3594
3595 if (!random_initialized && RAND_bytes(&random, 1) != 0)
3596 random_initialized = 1;
3597
3598 return random_initialized;
3599}
3600
William Lallemand2954c472020-03-06 21:54:13 +01003601/* Load a crt-list file, this is done in 2 parts:
3602 * - store the content of the file in a crtlist structure with crtlist_entry structures
3603 * - generate the instances by iterating on entries in the crtlist struct
3604 *
3605 * Nothing is locked there, this function is used in the configuration parser.
3606 *
3607 * Returns a set of ERR_* flags possibly with an error in <err>.
3608 */
William Lallemand6be66ec2020-03-06 22:26:32 +01003609int ssl_sock_load_cert_list_file(char *file, int dir, struct bind_conf *bind_conf, struct proxy *curproxy, char **err)
William Lallemand2954c472020-03-06 21:54:13 +01003610{
3611 struct crtlist *crtlist = NULL;
3612 struct ebmb_node *eb;
William Lallemand49398312020-03-30 17:01:33 +02003613 struct crtlist_entry *entry = NULL;
William Lallemand79d31ec2020-03-25 15:10:49 +01003614 struct bind_conf_list *bind_conf_node = NULL;
William Lallemand2954c472020-03-06 21:54:13 +01003615 int cfgerr = 0;
William Lallemand41ca9302020-04-08 13:15:18 +02003616 char *end;
William Lallemand2954c472020-03-06 21:54:13 +01003617
William Lallemand79d31ec2020-03-25 15:10:49 +01003618 bind_conf_node = malloc(sizeof(*bind_conf_node));
3619 if (!bind_conf_node) {
3620 memprintf(err, "%sCan't alloc memory!\n", err && *err ? *err : "");
3621 cfgerr |= ERR_FATAL | ERR_ALERT;
3622 goto error;
3623 }
3624 bind_conf_node->next = NULL;
3625 bind_conf_node->bind_conf = bind_conf;
3626
William Lallemand41ca9302020-04-08 13:15:18 +02003627 /* strip trailing slashes, including first one */
3628 for (end = file + strlen(file) - 1; end >= file && *end == '/'; end--)
3629 *end = 0;
3630
William Lallemand2954c472020-03-06 21:54:13 +01003631 /* look for an existing crtlist or create one */
3632 eb = ebst_lookup(&crtlists_tree, file);
3633 if (eb) {
3634 crtlist = ebmb_entry(eb, struct crtlist, node);
3635 } else {
William Lallemand6be66ec2020-03-06 22:26:32 +01003636 /* load a crt-list OR a directory */
3637 if (dir)
3638 cfgerr |= crtlist_load_cert_dir(file, bind_conf, &crtlist, err);
3639 else
3640 cfgerr |= crtlist_parse_file(file, bind_conf, curproxy, &crtlist, err);
3641
William Lallemand2954c472020-03-06 21:54:13 +01003642 if (!(cfgerr & ERR_CODE))
3643 ebst_insert(&crtlists_tree, &crtlist->node);
3644 }
3645
3646 if (cfgerr & ERR_CODE) {
3647 cfgerr |= ERR_FATAL | ERR_ALERT;
3648 goto error;
3649 }
3650
3651 /* generates ckch instance from the crtlist_entry */
3652 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3653 struct ckch_store *store;
3654 struct ckch_inst *ckch_inst = NULL;
3655
3656 store = entry->node.key;
3657 cfgerr |= ssl_sock_load_ckchs(store->path, store, bind_conf, entry->ssl_conf, entry->filters, entry->fcount, &ckch_inst, err);
3658 if (cfgerr & ERR_CODE) {
3659 memprintf(err, "error processing line %d in file '%s' : %s", entry->linenum, file, *err);
3660 goto error;
3661 }
Willy Tarreau2b718102021-04-21 07:32:39 +02003662 LIST_APPEND(&entry->ckch_inst, &ckch_inst->by_crtlist_entry);
William Lallemandcaa16192020-04-08 16:29:15 +02003663 ckch_inst->crtlist_entry = entry;
William Lallemand2954c472020-03-06 21:54:13 +01003664 }
William Lallemand2954c472020-03-06 21:54:13 +01003665
William Lallemand79d31ec2020-03-25 15:10:49 +01003666 /* add the bind_conf to the list */
3667 bind_conf_node->next = crtlist->bind_conf;
3668 crtlist->bind_conf = bind_conf_node;
3669
William Lallemand2954c472020-03-06 21:54:13 +01003670 return cfgerr;
3671error:
3672 {
William Lallemand49398312020-03-30 17:01:33 +02003673 struct crtlist_entry *lastentry;
William Lallemand2954c472020-03-06 21:54:13 +01003674 struct ckch_inst *inst, *s_inst;
3675
William Lallemand49398312020-03-30 17:01:33 +02003676 lastentry = entry; /* which entry we tried to generate last */
3677 if (lastentry) {
3678 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3679 if (entry == lastentry) /* last entry we tried to generate, no need to go further */
3680 break;
3681
3682 list_for_each_entry_safe(inst, s_inst, &entry->ckch_inst, by_crtlist_entry) {
William Lallemand2954c472020-03-06 21:54:13 +01003683
William Lallemand49398312020-03-30 17:01:33 +02003684 /* this was not generated for this bind_conf, skip */
3685 if (inst->bind_conf != bind_conf)
3686 continue;
3687
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003688 /* free the sni_ctx and instance */
3689 ckch_inst_free(inst);
William Lallemand49398312020-03-30 17:01:33 +02003690 }
William Lallemand2954c472020-03-06 21:54:13 +01003691 }
William Lallemand2954c472020-03-06 21:54:13 +01003692 }
William Lallemand79d31ec2020-03-25 15:10:49 +01003693 free(bind_conf_node);
William Lallemand2954c472020-03-06 21:54:13 +01003694 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003695 return cfgerr;
3696}
3697
William Lallemand06b22a82020-03-16 14:45:55 +01003698/* Returns a set of ERR_* flags possibly with an error in <err>. */
3699int ssl_sock_load_cert(char *path, struct bind_conf *bind_conf, char **err)
3700{
3701 struct stat buf;
William Lallemand06b22a82020-03-16 14:45:55 +01003702 int cfgerr = 0;
3703 struct ckch_store *ckchs;
William Lallemand24bde432020-03-09 16:48:43 +01003704 struct ckch_inst *ckch_inst = NULL;
William Lallemand06ce84a2020-11-20 15:36:13 +01003705 int found = 0; /* did we found a file to load ? */
William Lallemand06b22a82020-03-16 14:45:55 +01003706
3707 if ((ckchs = ckchs_lookup(path))) {
3708 /* we found the ckchs in the tree, we can use it directly */
William Lallemand06ce84a2020-11-20 15:36:13 +01003709 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3710 found++;
3711 } else if (stat(path, &buf) == 0) {
3712 found++;
William Lallemand06b22a82020-03-16 14:45:55 +01003713 if (S_ISDIR(buf.st_mode) == 0) {
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003714 ckchs = ckchs_load_cert_file(path, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003715 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003716 cfgerr |= ERR_ALERT | ERR_FATAL;
3717 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003718 } else {
William Lallemand06ce84a2020-11-20 15:36:13 +01003719 cfgerr |= ssl_sock_load_cert_list_file(path, 1, bind_conf, bind_conf->frontend, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003720 }
3721 } else {
3722 /* stat failed, could be a bundle */
3723 if (global_ssl.extra_files & SSL_GF_BUNDLE) {
William Lallemanddfa93be2020-09-16 14:48:52 +02003724 char fp[MAXPATHLEN+1] = {0};
3725 int n = 0;
3726
3727 /* Load all possible certs and keys in separate ckch_store */
3728 for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
3729 struct stat buf;
3730 int ret;
3731
3732 ret = snprintf(fp, sizeof(fp), "%s.%s", path, SSL_SOCK_KEYTYPE_NAMES[n]);
3733 if (ret > sizeof(fp))
3734 continue;
3735
3736 if ((ckchs = ckchs_lookup(fp))) {
3737 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06ce84a2020-11-20 15:36:13 +01003738 found++;
William Lallemanddfa93be2020-09-16 14:48:52 +02003739 } else {
3740 if (stat(fp, &buf) == 0) {
William Lallemand06ce84a2020-11-20 15:36:13 +01003741 found++;
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003742 ckchs = ckchs_load_cert_file(fp, err);
William Lallemanddfa93be2020-09-16 14:48:52 +02003743 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003744 cfgerr |= ERR_ALERT | ERR_FATAL;
William Lallemanddfa93be2020-09-16 14:48:52 +02003745 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3746 }
3747 }
3748 }
William Lallemandb7fdfdf2020-12-04 15:45:02 +01003749#if HA_OPENSSL_VERSION_NUMBER < 0x10101000L
3750 if (found) {
3751 memprintf(err, "%sCan't load '%s'. Loading a multi certificates bundle requires OpenSSL >= 1.1.1\n",
3752 err && *err ? *err : "", path);
3753 cfgerr |= ERR_ALERT | ERR_FATAL;
3754 }
3755#endif
William Lallemand06b22a82020-03-16 14:45:55 +01003756 }
3757 }
William Lallemand06ce84a2020-11-20 15:36:13 +01003758 if (!found) {
3759 memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
3760 err && *err ? *err : "", path, strerror(errno));
3761 cfgerr |= ERR_ALERT | ERR_FATAL;
3762 }
William Lallemand06b22a82020-03-16 14:45:55 +01003763
3764 return cfgerr;
3765}
3766
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003767
3768/* Create a full ssl context and ckch instance that will be used for a specific
3769 * backend server (server configuration line).
3770 * Returns a set of ERR_* flags possibly with an error in <err>.
3771 */
3772int ssl_sock_load_srv_cert(char *path, struct server *server, char **err)
3773{
3774 struct stat buf;
3775 int cfgerr = 0;
3776 struct ckch_store *ckchs;
3777 int found = 0; /* did we found a file to load ? */
3778
3779 if ((ckchs = ckchs_lookup(path))) {
3780 /* we found the ckchs in the tree, we can use it directly */
William Lallemanddb26e2b2021-01-26 12:01:46 +01003781 cfgerr |= ssl_sock_load_srv_ckchs(path, ckchs, server, &server->ssl_ctx.inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003782 found++;
3783 } else if (stat(path, &buf) == 0) {
3784 /* We do not manage directories on backend side. */
3785 if (S_ISDIR(buf.st_mode) == 0) {
3786 ++found;
3787 ckchs = ckchs_load_cert_file(path, err);
3788 if (!ckchs)
3789 cfgerr |= ERR_ALERT | ERR_FATAL;
William Lallemanddb26e2b2021-01-26 12:01:46 +01003790 cfgerr |= ssl_sock_load_srv_ckchs(path, ckchs, server, &server->ssl_ctx.inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003791 }
3792 }
3793 if (!found) {
3794 memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
3795 err && *err ? *err : "", path, strerror(errno));
3796 cfgerr |= ERR_ALERT | ERR_FATAL;
3797 }
3798
3799 return cfgerr;
3800}
3801
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003802/* Create an initial CTX used to start the SSL connection before switchctx */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003803static int
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003804ssl_sock_initial_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003805{
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003806 SSL_CTX *ctx = NULL;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003807 long options =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003808 SSL_OP_ALL | /* all known workarounds for bugs */
3809 SSL_OP_NO_SSLv2 |
3810 SSL_OP_NO_COMPRESSION |
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003811 SSL_OP_SINGLE_DH_USE |
Emeric Brun2b58d042012-09-20 17:10:03 +02003812 SSL_OP_SINGLE_ECDH_USE |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003813 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION |
Lukas Tribus926594f2018-05-18 17:55:57 +02003814 SSL_OP_PRIORITIZE_CHACHA |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003815 SSL_OP_CIPHER_SERVER_PREFERENCE;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003816 long mode =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003817 SSL_MODE_ENABLE_PARTIAL_WRITE |
3818 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
Willy Tarreau396a1862014-11-13 14:06:52 +01003819 SSL_MODE_RELEASE_BUFFERS |
3820 SSL_MODE_SMALL_BUFFERS;
Emmanuel Hocdet43664762017-08-09 18:26:20 +02003821 struct tls_version_filter *conf_ssl_methods = &bind_conf->ssl_conf.ssl_methods;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003822 int i, min, max, hole;
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003823 int flags = MC_SSL_O_ALL;
3824 int cfgerr = 0;
William Lallemand50df1cb2020-06-02 10:52:24 +02003825 const int default_min_ver = CONF_TLSV12;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003826
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003827 ctx = SSL_CTX_new(SSLv23_server_method());
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003828 bind_conf->initial_ctx = ctx;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003829
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003830 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01003831 ha_warning("Proxy '%s': no-sslv3/no-tlsv1x are ignored for bind '%s' at [%s:%d]. "
3832 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3833 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003834 else
3835 flags = conf_ssl_methods->flags;
3836
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003837 min = conf_ssl_methods->min;
3838 max = conf_ssl_methods->max;
William Lallemand50df1cb2020-06-02 10:52:24 +02003839
3840 /* default minimum is TLSV12, */
3841 if (!min) {
3842 if (!max || (max >= default_min_ver)) {
3843 min = default_min_ver;
3844 } else {
3845 ha_warning("Proxy '%s': Ambiguous configuration for bind '%s' at [%s:%d]: the ssl-min-ver value is not configured and the ssl-max-ver value is lower than the default ssl-min-ver value (%s). "
3846 "Setting the ssl-min-ver to %s. Use 'ssl-min-ver' to fix this.\n",
3847 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line, methodVersions[default_min_ver].name, methodVersions[max].name);
3848 min = max;
3849 }
3850 }
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003851 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003852 if (min)
3853 flags |= (methodVersions[min].flag - 1);
3854 if (max)
3855 flags |= ~((methodVersions[max].flag << 1) - 1);
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003856 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003857 min = max = CONF_TLSV_NONE;
3858 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003859 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003860 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003861 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003862 if (min) {
3863 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003864 ha_warning("Proxy '%s': SSL/TLS versions range not contiguous for bind '%s' at [%s:%d]. "
3865 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3866 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line,
3867 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003868 hole = 0;
3869 }
3870 max = i;
3871 }
3872 else {
3873 min = max = i;
3874 }
3875 }
3876 else {
3877 if (min)
3878 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003879 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003880 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003881 ha_alert("Proxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
3882 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003883 cfgerr += 1;
3884 }
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02003885 /* save real min/max in bind_conf */
3886 conf_ssl_methods->min = min;
3887 conf_ssl_methods->max = max;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003888
Willy Tarreau9a1ab082019-05-09 13:26:41 +02003889#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003890 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08003891 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003892 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003893 methodVersions[min].ctx_set_version(ctx, SET_SERVER);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003894 else
William Lallemandd0712f32020-06-11 17:34:00 +02003895 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++) {
3896 /* clear every version flags in case SSL_CTX_new()
3897 * returns an SSL_CTX with disabled versions */
3898 SSL_CTX_clear_options(ctx, methodVersions[i].option);
3899
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003900 if (flags & methodVersions[i].flag)
3901 options |= methodVersions[i].option;
William Lallemandd0712f32020-06-11 17:34:00 +02003902
3903 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003904#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003905 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003906 methodVersions[min].ctx_set_version(ctx, SET_MIN);
3907 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emeric Brunfa5c5c82017-04-28 16:19:51 +02003908#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003909
3910 if (bind_conf->ssl_options & BC_SSL_O_NO_TLS_TICKETS)
3911 options |= SSL_OP_NO_TICKET;
3912 if (bind_conf->ssl_options & BC_SSL_O_PREF_CLIE_CIPH)
3913 options &= ~SSL_OP_CIPHER_SERVER_PREFERENCE;
Dirkjan Bussink526894f2019-01-21 09:35:03 -08003914
3915#ifdef SSL_OP_NO_RENEGOTIATION
3916 options |= SSL_OP_NO_RENEGOTIATION;
3917#endif
3918
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003919 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003920
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05003921#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003922 if (global_ssl.async)
3923 mode |= SSL_MODE_ASYNC;
3924#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003925 SSL_CTX_set_mode(ctx, mode);
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003926 if (global_ssl.life_time)
3927 SSL_CTX_set_timeout(ctx, global_ssl.life_time);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003928
3929#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3930#ifdef OPENSSL_IS_BORINGSSL
3931 SSL_CTX_set_select_certificate_cb(ctx, ssl_sock_switchctx_cbk);
3932 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Ilya Shipitsine9ff8992020-01-19 12:20:14 +05003933#elif defined(SSL_OP_NO_ANTI_REPLAY)
Olivier Houchard545989f2019-12-17 15:39:54 +01003934 if (bind_conf->ssl_conf.early_data)
Olivier Houchard51088ce2019-01-02 18:46:41 +01003935 SSL_CTX_set_options(ctx, SSL_OP_NO_ANTI_REPLAY);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02003936 SSL_CTX_set_client_hello_cb(ctx, ssl_sock_switchctx_cbk, NULL);
3937 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003938#else
3939 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003940#endif
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02003941 SSL_CTX_set_tlsext_servername_arg(ctx, bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003942#endif
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003943 return cfgerr;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003944}
3945
William Lallemand4f45bb92017-10-30 20:08:51 +01003946
3947static inline void sh_ssl_sess_free_blocks(struct shared_block *first, struct shared_block *block)
3948{
3949 if (first == block) {
3950 struct sh_ssl_sess_hdr *sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3951 if (first->len > 0)
3952 sh_ssl_sess_tree_delete(sh_ssl_sess);
3953 }
3954}
3955
3956/* return first block from sh_ssl_sess */
3957static inline struct shared_block *sh_ssl_sess_first_block(struct sh_ssl_sess_hdr *sh_ssl_sess)
3958{
3959 return (struct shared_block *)((unsigned char *)sh_ssl_sess - ((struct shared_block *)NULL)->data);
3960
3961}
3962
3963/* store a session into the cache
3964 * s_id : session id padded with zero to SSL_MAX_SSL_SESSION_ID_LENGTH
3965 * data: asn1 encoded session
3966 * data_len: asn1 encoded session length
3967 * Returns 1 id session was stored (else 0)
3968 */
3969static int sh_ssl_sess_store(unsigned char *s_id, unsigned char *data, int data_len)
3970{
3971 struct shared_block *first;
3972 struct sh_ssl_sess_hdr *sh_ssl_sess, *oldsh_ssl_sess;
3973
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02003974 first = shctx_row_reserve_hot(ssl_shctx, NULL, data_len + sizeof(struct sh_ssl_sess_hdr));
William Lallemand4f45bb92017-10-30 20:08:51 +01003975 if (!first) {
3976 /* Could not retrieve enough free blocks to store that session */
3977 return 0;
3978 }
3979
3980 /* STORE the key in the first elem */
3981 sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3982 memcpy(sh_ssl_sess->key_data, s_id, SSL_MAX_SSL_SESSION_ID_LENGTH);
3983 first->len = sizeof(struct sh_ssl_sess_hdr);
3984
3985 /* it returns the already existing node
3986 or current node if none, never returns null */
3987 oldsh_ssl_sess = sh_ssl_sess_tree_insert(sh_ssl_sess);
3988 if (oldsh_ssl_sess != sh_ssl_sess) {
3989 /* NOTE: Row couldn't be in use because we lock read & write function */
3990 /* release the reserved row */
3991 shctx_row_dec_hot(ssl_shctx, first);
3992 /* replace the previous session already in the tree */
3993 sh_ssl_sess = oldsh_ssl_sess;
3994 /* ignore the previous session data, only use the header */
3995 first = sh_ssl_sess_first_block(sh_ssl_sess);
3996 shctx_row_inc_hot(ssl_shctx, first);
3997 first->len = sizeof(struct sh_ssl_sess_hdr);
3998 }
3999
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02004000 if (shctx_row_data_append(ssl_shctx, first, NULL, data, data_len) < 0) {
William Lallemand99b90af2018-01-03 19:15:51 +01004001 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01004002 return 0;
William Lallemand99b90af2018-01-03 19:15:51 +01004003 }
4004
4005 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01004006
4007 return 1;
4008}
William Lallemanded0b5ad2017-10-30 19:36:36 +01004009
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004010/* SSL callback used when a new session is created while connecting to a server */
4011static int ssl_sess_new_srv_cb(SSL *ssl, SSL_SESSION *sess)
4012{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02004013 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004014 struct server *s;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004015
Willy Tarreau07d94e42018-09-20 10:57:52 +02004016 s = __objt_server(conn->target);
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004017
William Lallemand3ce6eed2021-02-08 10:43:44 +01004018 /* RWLOCK: only read lock the SSL cache even when writing in it because there is
4019 * one cache per thread, it only prevents to flush it from the CLI in
4020 * another thread */
4021
Olivier Houcharde6060c52017-11-16 17:42:52 +01004022 if (!(s->ssl_ctx.options & SRV_SSL_O_NO_REUSE)) {
4023 int len;
4024 unsigned char *ptr;
William Lallemandc78ac5a2021-11-17 02:59:21 +01004025 const char *sni;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004026
Olivier Houcharde6060c52017-11-16 17:42:52 +01004027 len = i2d_SSL_SESSION(sess, NULL);
William Lallemandc78ac5a2021-11-17 02:59:21 +01004028 sni = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
William Lallemand3ce6eed2021-02-08 10:43:44 +01004029 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004030 if (s->ssl_ctx.reused_sess[tid].ptr && s->ssl_ctx.reused_sess[tid].allocated_size >= len) {
4031 ptr = s->ssl_ctx.reused_sess[tid].ptr;
4032 } else {
Willy Tarreau3bda3f42021-02-26 21:05:08 +01004033 ptr = realloc(s->ssl_ctx.reused_sess[tid].ptr, len);
4034 s->ssl_ctx.reused_sess[tid].ptr = ptr;
Olivier Houcharde6060c52017-11-16 17:42:52 +01004035 s->ssl_ctx.reused_sess[tid].allocated_size = len;
4036 }
4037 if (s->ssl_ctx.reused_sess[tid].ptr) {
4038 s->ssl_ctx.reused_sess[tid].size = i2d_SSL_SESSION(sess,
4039 &ptr);
4040 }
William Lallemandc78ac5a2021-11-17 02:59:21 +01004041
4042 if (s->ssl_ctx.reused_sess[tid].sni) {
4043 /* if the new sni is empty or isn' t the same as the old one */
4044 if ((!sni) || strcmp(s->ssl_ctx.reused_sess[tid].sni, sni) != 0) {
4045 ha_free(&s->ssl_ctx.reused_sess[tid].sni);
4046 if (sni)
4047 s->ssl_ctx.reused_sess[tid].sni = strdup(sni);
4048 }
4049 } else if (sni) {
4050 /* if there wasn't an old sni but there is a new one */
4051 s->ssl_ctx.reused_sess[tid].sni = strdup(sni);
4052 }
William Lallemand3ce6eed2021-02-08 10:43:44 +01004053 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004054 } else {
William Lallemand3ce6eed2021-02-08 10:43:44 +01004055 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01004056 ha_free(&s->ssl_ctx.reused_sess[tid].ptr);
William Lallemand3ce6eed2021-02-08 10:43:44 +01004057 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004058 }
4059
4060 return 0;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004061}
4062
Olivier Houcharde6060c52017-11-16 17:42:52 +01004063
William Lallemanded0b5ad2017-10-30 19:36:36 +01004064/* SSL callback used on new session creation */
William Lallemand4f45bb92017-10-30 20:08:51 +01004065int sh_ssl_sess_new_cb(SSL *ssl, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004066{
4067 unsigned char encsess[SHSESS_MAX_DATA_LEN]; /* encoded session */
4068 unsigned char encid[SSL_MAX_SSL_SESSION_ID_LENGTH]; /* encoded id */
4069 unsigned char *p;
4070 int data_len;
Emeric Bruneb469652019-10-08 18:27:37 +02004071 unsigned int sid_length;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004072 const unsigned char *sid_data;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004073
4074 /* Session id is already stored in to key and session id is known
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05004075 * so we don't store it to keep size.
Emeric Bruneb469652019-10-08 18:27:37 +02004076 * note: SSL_SESSION_set1_id is using
4077 * a memcpy so we need to use a different pointer
4078 * than sid_data or sid_ctx_data to avoid valgrind
4079 * complaining.
William Lallemanded0b5ad2017-10-30 19:36:36 +01004080 */
4081
4082 sid_data = SSL_SESSION_get_id(sess, &sid_length);
Emeric Bruneb469652019-10-08 18:27:37 +02004083
4084 /* copy value in an other buffer */
4085 memcpy(encid, sid_data, sid_length);
4086
4087 /* pad with 0 */
4088 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH)
4089 memset(encid + sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH-sid_length);
4090
4091 /* force length to zero to avoid ASN1 encoding */
4092 SSL_SESSION_set1_id(sess, encid, 0);
4093
4094 /* force length to zero to avoid ASN1 encoding */
4095 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, 0);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004096
4097 /* check if buffer is large enough for the ASN1 encoded session */
4098 data_len = i2d_SSL_SESSION(sess, NULL);
4099 if (data_len > SHSESS_MAX_DATA_LEN)
4100 goto err;
4101
4102 p = encsess;
4103
4104 /* process ASN1 session encoding before the lock */
4105 i2d_SSL_SESSION(sess, &p);
4106
William Lallemanded0b5ad2017-10-30 19:36:36 +01004107
William Lallemanda3c77cf2017-10-30 23:44:40 +01004108 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004109 /* store to cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004110 sh_ssl_sess_store(encid, encsess, data_len);
William Lallemanda3c77cf2017-10-30 23:44:40 +01004111 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004112err:
4113 /* reset original length values */
Emeric Bruneb469652019-10-08 18:27:37 +02004114 SSL_SESSION_set1_id(sess, encid, sid_length);
4115 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
William Lallemanded0b5ad2017-10-30 19:36:36 +01004116
4117 return 0; /* do not increment session reference count */
4118}
4119
4120/* SSL callback used on lookup an existing session cause none found in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004121SSL_SESSION *sh_ssl_sess_get_cb(SSL *ssl, __OPENSSL_110_CONST__ unsigned char *key, int key_len, int *do_copy)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004122{
William Lallemand4f45bb92017-10-30 20:08:51 +01004123 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004124 unsigned char data[SHSESS_MAX_DATA_LEN], *p;
4125 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
William Lallemanded0b5ad2017-10-30 19:36:36 +01004126 SSL_SESSION *sess;
William Lallemand4f45bb92017-10-30 20:08:51 +01004127 struct shared_block *first;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004128
Willy Tarreau37d69392021-06-15 16:39:22 +02004129 _HA_ATOMIC_INC(&global.shctx_lookups);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004130
4131 /* allow the session to be freed automatically by openssl */
4132 *do_copy = 0;
4133
4134 /* tree key is zeros padded sessionid */
4135 if (key_len < SSL_MAX_SSL_SESSION_ID_LENGTH) {
4136 memcpy(tmpkey, key, key_len);
4137 memset(tmpkey + key_len, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - key_len);
4138 key = tmpkey;
4139 }
4140
4141 /* lock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004142 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004143
4144 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004145 sh_ssl_sess = sh_ssl_sess_tree_lookup(key);
4146 if (!sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01004147 /* no session found: unlock cache and exit */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004148 shctx_unlock(ssl_shctx);
Willy Tarreau37d69392021-06-15 16:39:22 +02004149 _HA_ATOMIC_INC(&global.shctx_misses);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004150 return NULL;
4151 }
4152
William Lallemand4f45bb92017-10-30 20:08:51 +01004153 /* sh_ssl_sess (shared_block->data) is at the end of shared_block */
4154 first = sh_ssl_sess_first_block(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004155
William Lallemand4f45bb92017-10-30 20:08:51 +01004156 shctx_row_data_get(ssl_shctx, first, data, sizeof(struct sh_ssl_sess_hdr), first->len-sizeof(struct sh_ssl_sess_hdr));
William Lallemanded0b5ad2017-10-30 19:36:36 +01004157
William Lallemanda3c77cf2017-10-30 23:44:40 +01004158 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004159
4160 /* decode ASN1 session */
4161 p = data;
William Lallemand4f45bb92017-10-30 20:08:51 +01004162 sess = d2i_SSL_SESSION(NULL, (const unsigned char **)&p, first->len-sizeof(struct sh_ssl_sess_hdr));
William Lallemanded0b5ad2017-10-30 19:36:36 +01004163 /* Reset session id and session id contenxt */
4164 if (sess) {
4165 SSL_SESSION_set1_id(sess, key, key_len);
4166 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
4167 }
4168
4169 return sess;
4170}
4171
William Lallemand4f45bb92017-10-30 20:08:51 +01004172
William Lallemanded0b5ad2017-10-30 19:36:36 +01004173/* SSL callback used to signal session is no more used in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004174void sh_ssl_sess_remove_cb(SSL_CTX *ctx, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004175{
William Lallemand4f45bb92017-10-30 20:08:51 +01004176 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004177 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
4178 unsigned int sid_length;
4179 const unsigned char *sid_data;
4180 (void)ctx;
4181
4182 sid_data = SSL_SESSION_get_id(sess, &sid_length);
4183 /* tree key is zeros padded sessionid */
4184 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH) {
4185 memcpy(tmpkey, sid_data, sid_length);
4186 memset(tmpkey+sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - sid_length);
4187 sid_data = tmpkey;
4188 }
4189
William Lallemanda3c77cf2017-10-30 23:44:40 +01004190 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004191
4192 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004193 sh_ssl_sess = sh_ssl_sess_tree_lookup(sid_data);
4194 if (sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01004195 /* free session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004196 sh_ssl_sess_tree_delete(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004197 }
4198
4199 /* unlock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004200 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004201}
4202
4203/* Set session cache mode to server and disable openssl internal cache.
4204 * Set shared cache callbacks on an ssl context.
4205 * Shared context MUST be firstly initialized */
William Lallemand4f45bb92017-10-30 20:08:51 +01004206void ssl_set_shctx(SSL_CTX *ctx)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004207{
4208 SSL_CTX_set_session_id_context(ctx, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
4209
4210 if (!ssl_shctx) {
4211 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
4212 return;
4213 }
4214
4215 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_SERVER |
4216 SSL_SESS_CACHE_NO_INTERNAL |
4217 SSL_SESS_CACHE_NO_AUTO_CLEAR);
4218
4219 /* Set callbacks */
William Lallemand4f45bb92017-10-30 20:08:51 +01004220 SSL_CTX_sess_set_new_cb(ctx, sh_ssl_sess_new_cb);
4221 SSL_CTX_sess_set_get_cb(ctx, sh_ssl_sess_get_cb);
4222 SSL_CTX_sess_set_remove_cb(ctx, sh_ssl_sess_remove_cb);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004223}
William Lallemand7d42ef52020-07-06 11:41:30 +02004224
4225/*
4226 * https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format
4227 *
4228 * The format is:
4229 * * <Label> <space> <ClientRandom> <space> <Secret>
4230 * We only need to copy the secret as there is a sample fetch for the ClientRandom
4231 */
4232
William Lallemandca5cf0a2021-06-09 16:46:12 +02004233#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02004234void SSL_CTX_keylog(const SSL *ssl, const char *line)
4235{
4236 struct ssl_keylog *keylog;
4237 char *lastarg = NULL;
4238 char *dst = NULL;
4239
4240 keylog = SSL_get_ex_data(ssl, ssl_keylog_index);
4241 if (!keylog)
4242 return;
4243
4244 lastarg = strrchr(line, ' ');
4245 if (lastarg == NULL || ++lastarg == NULL)
4246 return;
4247
4248 dst = pool_alloc(pool_head_ssl_keylog_str);
4249 if (!dst)
4250 return;
4251
4252 strncpy(dst, lastarg, SSL_KEYLOG_MAX_SECRET_SIZE-1);
4253 dst[SSL_KEYLOG_MAX_SECRET_SIZE-1] = '\0';
4254
4255 if (strncmp(line, "CLIENT_RANDOM ", strlen("CLIENT RANDOM ")) == 0) {
4256 if (keylog->client_random)
4257 goto error;
4258 keylog->client_random = dst;
4259
4260 } else if (strncmp(line, "CLIENT_EARLY_TRAFFIC_SECRET ", strlen("CLIENT_EARLY_TRAFFIC_SECRET ")) == 0) {
4261 if (keylog->client_early_traffic_secret)
4262 goto error;
4263 keylog->client_early_traffic_secret = dst;
4264
4265 } else if (strncmp(line, "CLIENT_HANDSHAKE_TRAFFIC_SECRET ", strlen("CLIENT_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4266 if(keylog->client_handshake_traffic_secret)
4267 goto error;
4268 keylog->client_handshake_traffic_secret = dst;
4269
4270 } else if (strncmp(line, "SERVER_HANDSHAKE_TRAFFIC_SECRET ", strlen("SERVER_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4271 if (keylog->server_handshake_traffic_secret)
4272 goto error;
4273 keylog->server_handshake_traffic_secret = dst;
4274
4275 } else if (strncmp(line, "CLIENT_TRAFFIC_SECRET_0 ", strlen("CLIENT_TRAFFIC_SECRET_0 ")) == 0) {
4276 if (keylog->client_traffic_secret_0)
4277 goto error;
4278 keylog->client_traffic_secret_0 = dst;
4279
4280 } else if (strncmp(line, "SERVER_TRAFFIC_SECRET_0 ", strlen("SERVER_TRAFFIC_SECRET_0 ")) == 0) {
4281 if (keylog->server_traffic_secret_0)
4282 goto error;
4283 keylog->server_traffic_secret_0 = dst;
4284
4285 } else if (strncmp(line, "EARLY_EXPORTER_SECRET ", strlen("EARLY_EXPORTER_SECRET ")) == 0) {
4286 if (keylog->early_exporter_secret)
4287 goto error;
4288 keylog->early_exporter_secret = dst;
4289
4290 } else if (strncmp(line, "EXPORTER_SECRET ", strlen("EXPORTER_SECRET ")) == 0) {
4291 if (keylog->exporter_secret)
4292 goto error;
4293 keylog->exporter_secret = dst;
4294 } else {
4295 goto error;
4296 }
4297
4298 return;
4299
4300error:
4301 pool_free(pool_head_ssl_keylog_str, dst);
4302
4303 return;
4304}
4305#endif
William Lallemanded0b5ad2017-10-30 19:36:36 +01004306
William Lallemand8b453912019-11-21 15:48:10 +01004307/*
4308 * This function applies the SSL configuration on a SSL_CTX
4309 * It returns an error code and fills the <err> buffer
4310 */
4311int ssl_sock_prepare_ctx(struct bind_conf *bind_conf, struct ssl_bind_conf *ssl_conf, SSL_CTX *ctx, char **err)
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004312{
4313 struct proxy *curproxy = bind_conf->frontend;
4314 int cfgerr = 0;
4315 int verify = SSL_VERIFY_NONE;
Willy Tarreau5d4cafb2018-01-04 18:55:19 +01004316 struct ssl_bind_conf __maybe_unused *ssl_conf_cur;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004317 const char *conf_ciphers;
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004318#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004319 const char *conf_ciphersuites;
4320#endif
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004321 const char *conf_curves = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004322
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004323 if (ssl_conf) {
4324 struct tls_version_filter *conf_ssl_methods = &ssl_conf->ssl_methods;
4325 int i, min, max;
4326 int flags = MC_SSL_O_ALL;
4327
4328 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdet43664762017-08-09 18:26:20 +02004329 min = conf_ssl_methods->min ? conf_ssl_methods->min : bind_conf->ssl_conf.ssl_methods.min;
4330 max = conf_ssl_methods->max ? conf_ssl_methods->max : bind_conf->ssl_conf.ssl_methods.max;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004331 if (min)
4332 flags |= (methodVersions[min].flag - 1);
4333 if (max)
4334 flags |= ~((methodVersions[max].flag << 1) - 1);
4335 min = max = CONF_TLSV_NONE;
4336 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4337 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
4338 if (min)
4339 max = i;
4340 else
4341 min = max = i;
4342 }
4343 /* save real min/max */
4344 conf_ssl_methods->min = min;
4345 conf_ssl_methods->max = max;
4346 if (!min) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004347 memprintf(err, "%sProxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
4348 err && *err ? *err : "", bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004349 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004350 }
4351 }
4352
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004353 switch ((ssl_conf && ssl_conf->verify) ? ssl_conf->verify : bind_conf->ssl_conf.verify) {
Emeric Brun850efd52014-01-29 12:24:34 +01004354 case SSL_SOCK_VERIFY_NONE:
4355 verify = SSL_VERIFY_NONE;
4356 break;
4357 case SSL_SOCK_VERIFY_OPTIONAL:
4358 verify = SSL_VERIFY_PEER;
4359 break;
4360 case SSL_SOCK_VERIFY_REQUIRED:
4361 verify = SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
4362 break;
4363 }
4364 SSL_CTX_set_verify(ctx, verify, ssl_sock_bind_verifycbk);
4365 if (verify & SSL_VERIFY_PEER) {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004366 char *ca_file = (ssl_conf && ssl_conf->ca_file) ? ssl_conf->ca_file : bind_conf->ssl_conf.ca_file;
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004367 char *ca_verify_file = (ssl_conf && ssl_conf->ca_verify_file) ? ssl_conf->ca_verify_file : bind_conf->ssl_conf.ca_verify_file;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004368 char *crl_file = (ssl_conf && ssl_conf->crl_file) ? ssl_conf->crl_file : bind_conf->ssl_conf.crl_file;
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004369 if (ca_file || ca_verify_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004370 /* set CAfile to verify */
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004371 if (ca_file && !ssl_set_verify_locations_file(ctx, ca_file)) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004372 memprintf(err, "%sProxy '%s': unable to set CA file '%s' for bind '%s' at [%s:%d].\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01004373 err && *err ? *err : "", curproxy->id, ca_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004374 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004375 }
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004376 if (ca_verify_file && !ssl_set_verify_locations_file(ctx, ca_verify_file)) {
4377 memprintf(err, "%sProxy '%s': unable to set CA-no-names file '%s' for bind '%s' at [%s:%d].\n",
4378 err && *err ? *err : "", curproxy->id, ca_verify_file, bind_conf->arg, bind_conf->file, bind_conf->line);
4379 cfgerr |= ERR_ALERT | ERR_FATAL;
4380 }
4381 if (ca_file && !((ssl_conf && ssl_conf->no_ca_names) || bind_conf->ssl_conf.no_ca_names)) {
Emmanuel Hocdet174dfe52017-07-28 15:01:05 +02004382 /* set CA names for client cert request, function returns void */
Emmanuel Hocdet129d3282019-10-24 18:08:51 +02004383 SSL_CTX_set_client_CA_list(ctx, SSL_dup_CA_list(ssl_get_client_ca_file(ca_file)));
Emmanuel Hocdet174dfe52017-07-28 15:01:05 +02004384 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004385 }
Emeric Brun850efd52014-01-29 12:24:34 +01004386 else {
Tim Duesterhus93128532019-11-23 23:45:10 +01004387 memprintf(err, "%sProxy '%s': verify is enabled but no CA file specified for bind '%s' at [%s:%d].\n",
4388 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004389 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun850efd52014-01-29 12:24:34 +01004390 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004391#ifdef X509_V_FLAG_CRL_CHECK
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004392 if (crl_file) {
Emeric Brund94b3fe2012-09-20 18:23:56 +02004393 X509_STORE *store = SSL_CTX_get_cert_store(ctx);
4394
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004395 if (!ssl_set_cert_crl_file(store, crl_file)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004396 memprintf(err, "%sProxy '%s': unable to configure CRL file '%s' for bind '%s' at [%s:%d].\n",
4397 err && *err ? *err : "", curproxy->id, crl_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004398 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004399 }
Emeric Brun561e5742012-10-02 15:20:55 +02004400 else {
4401 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4402 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004403 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004404#endif
Emeric Brun644cde02012-12-14 11:21:13 +01004405 ERR_clear_error();
Emeric Brund94b3fe2012-09-20 18:23:56 +02004406 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004407#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
Nenad Merdanovic146defa2015-05-09 08:46:00 +02004408 if(bind_conf->keys_ref) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004409 if (!SSL_CTX_set_tlsext_ticket_key_cb(ctx, ssl_tlsext_ticket_key_cb)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004410 memprintf(err, "%sProxy '%s': unable to set callback for TLS ticket validation for bind '%s' at [%s:%d].\n",
4411 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004412 cfgerr |= ERR_ALERT | ERR_FATAL;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004413 }
4414 }
4415#endif
4416
William Lallemand4f45bb92017-10-30 20:08:51 +01004417 ssl_set_shctx(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004418 conf_ciphers = (ssl_conf && ssl_conf->ciphers) ? ssl_conf->ciphers : bind_conf->ssl_conf.ciphers;
4419 if (conf_ciphers &&
4420 !SSL_CTX_set_cipher_list(ctx, conf_ciphers)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004421 memprintf(err, "%sProxy '%s': unable to set SSL cipher list to '%s' for bind '%s' at [%s:%d].\n",
4422 err && *err ? *err : "", curproxy->id, conf_ciphers, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004423 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004424 }
4425
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004426#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004427 conf_ciphersuites = (ssl_conf && ssl_conf->ciphersuites) ? ssl_conf->ciphersuites : bind_conf->ssl_conf.ciphersuites;
4428 if (conf_ciphersuites &&
4429 !SSL_CTX_set_ciphersuites(ctx, conf_ciphersuites)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004430 memprintf(err, "%sProxy '%s': unable to set TLS 1.3 cipher suites to '%s' for bind '%s' at [%s:%d].\n",
4431 err && *err ? *err : "", curproxy->id, conf_ciphersuites, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004432 cfgerr |= ERR_ALERT | ERR_FATAL;
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004433 }
4434#endif
4435
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01004436#ifndef OPENSSL_NO_DH
Remi Gacogne47783ef2015-05-29 15:53:22 +02004437 /* If tune.ssl.default-dh-param has not been set,
4438 neither has ssl-default-dh-file and no static DH
4439 params were in the certificate file. */
Willy Tarreauef934602016-12-22 23:12:01 +01004440 if (global_ssl.default_dh_param == 0 &&
Remi Gacogne47783ef2015-05-29 15:53:22 +02004441 global_dh == NULL &&
Remi Gacogne4f902b82015-05-28 16:23:00 +02004442 (ssl_dh_ptr_index == -1 ||
4443 SSL_CTX_get_ex_data(ctx, ssl_dh_ptr_index) == NULL)) {
Willy Tarreau3ba77d22020-05-08 09:31:18 +02004444 /* default to dh-param 2048 */
4445 global_ssl.default_dh_param = 2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004446 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004447
Willy Tarreauef934602016-12-22 23:12:01 +01004448 if (global_ssl.default_dh_param >= 1024) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004449 if (local_dh_1024 == NULL) {
4450 local_dh_1024 = ssl_get_dh_1024();
4451 }
Willy Tarreauef934602016-12-22 23:12:01 +01004452 if (global_ssl.default_dh_param >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004453 if (local_dh_2048 == NULL) {
4454 local_dh_2048 = ssl_get_dh_2048();
4455 }
Willy Tarreauef934602016-12-22 23:12:01 +01004456 if (global_ssl.default_dh_param >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004457 if (local_dh_4096 == NULL) {
4458 local_dh_4096 = ssl_get_dh_4096();
4459 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004460 }
4461 }
4462 }
4463#endif /* OPENSSL_NO_DH */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004464
Emeric Brunfc0421f2012-09-07 17:30:07 +02004465 SSL_CTX_set_info_callback(ctx, ssl_sock_infocbk);
Ilya Shipitsin7ff77472021-02-08 16:55:06 +05004466#ifdef SSL_CTRL_SET_MSG_CALLBACK
Emeric Brun29f037d2014-04-25 19:05:36 +02004467 SSL_CTX_set_msg_callback(ctx, ssl_sock_msgcbk);
Willy Tarreau5cbe4ef2014-05-08 22:45:11 +02004468#endif
William Lallemandca5cf0a2021-06-09 16:46:12 +02004469#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02004470 SSL_CTX_set_keylog_callback(ctx, SSL_CTX_keylog);
4471#endif
Emeric Brun29f037d2014-04-25 19:05:36 +02004472
Bernard Spil13c53f82018-02-15 13:34:58 +01004473#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004474 ssl_conf_cur = NULL;
4475 if (ssl_conf && ssl_conf->npn_str)
4476 ssl_conf_cur = ssl_conf;
4477 else if (bind_conf->ssl_conf.npn_str)
4478 ssl_conf_cur = &bind_conf->ssl_conf;
4479 if (ssl_conf_cur)
4480 SSL_CTX_set_next_protos_advertised_cb(ctx, ssl_sock_advertise_npn_protos, ssl_conf_cur);
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02004481#endif
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01004482#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004483 ssl_conf_cur = NULL;
4484 if (ssl_conf && ssl_conf->alpn_str)
4485 ssl_conf_cur = ssl_conf;
4486 else if (bind_conf->ssl_conf.alpn_str)
4487 ssl_conf_cur = &bind_conf->ssl_conf;
4488 if (ssl_conf_cur)
4489 SSL_CTX_set_alpn_select_cb(ctx, ssl_sock_advertise_alpn_protos, ssl_conf_cur);
Willy Tarreauab861d32013-04-02 02:30:41 +02004490#endif
Ilya Shipitsin0aa8c292020-11-04 00:39:07 +05004491#if defined(SSL_CTX_set1_curves_list)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004492 conf_curves = (ssl_conf && ssl_conf->curves) ? ssl_conf->curves : bind_conf->ssl_conf.curves;
4493 if (conf_curves) {
4494 if (!SSL_CTX_set1_curves_list(ctx, conf_curves)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004495 memprintf(err, "%sProxy '%s': unable to set SSL curves list to '%s' for bind '%s' at [%s:%d].\n",
4496 err && *err ? *err : "", curproxy->id, conf_curves, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004497 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004498 }
Emmanuel Hocdeta52bb152017-03-20 11:11:49 +01004499 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004500 }
4501#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004502#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004503 if (!conf_curves) {
Emeric Brun2b58d042012-09-20 17:10:03 +02004504 int i;
4505 EC_KEY *ecdh;
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004506#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004507 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
Olivier Houchardc2aae742017-09-22 18:26:28 +02004508 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4509 NULL);
4510
4511 if (ecdhe == NULL) {
Eric Salama3c8bde82019-11-20 11:33:40 +01004512 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Olivier Houchardc2aae742017-09-22 18:26:28 +02004513 return cfgerr;
4514 }
4515#else
4516 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
4517 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4518 ECDHE_DEFAULT_CURVE);
4519#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004520
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004521 i = OBJ_sn2nid(ecdhe);
Emeric Brun2b58d042012-09-20 17:10:03 +02004522 if (!i || ((ecdh = EC_KEY_new_by_curve_name(i)) == NULL)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004523 memprintf(err, "%sProxy '%s': unable to set elliptic named curve to '%s' for bind '%s' at [%s:%d].\n",
4524 err && *err ? *err : "", curproxy->id, ecdhe, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004525 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun2b58d042012-09-20 17:10:03 +02004526 }
4527 else {
4528 SSL_CTX_set_tmp_ecdh(ctx, ecdh);
4529 EC_KEY_free(ecdh);
4530 }
4531 }
4532#endif
4533
Emeric Brunfc0421f2012-09-07 17:30:07 +02004534 return cfgerr;
4535}
4536
Evan Broderbe554312013-06-27 00:05:25 -07004537static int ssl_sock_srv_hostcheck(const char *pattern, const char *hostname)
4538{
4539 const char *pattern_wildcard, *pattern_left_label_end, *hostname_left_label_end;
4540 size_t prefixlen, suffixlen;
4541
4542 /* Trivial case */
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004543 if (strcasecmp(pattern, hostname) == 0)
Evan Broderbe554312013-06-27 00:05:25 -07004544 return 1;
4545
Evan Broderbe554312013-06-27 00:05:25 -07004546 /* The rest of this logic is based on RFC 6125, section 6.4.3
4547 * (http://tools.ietf.org/html/rfc6125#section-6.4.3) */
4548
Emeric Bruna848dae2013-10-08 11:27:28 +02004549 pattern_wildcard = NULL;
4550 pattern_left_label_end = pattern;
4551 while (*pattern_left_label_end != '.') {
4552 switch (*pattern_left_label_end) {
4553 case 0:
4554 /* End of label not found */
4555 return 0;
4556 case '*':
4557 /* If there is more than one wildcards */
4558 if (pattern_wildcard)
4559 return 0;
4560 pattern_wildcard = pattern_left_label_end;
4561 break;
4562 }
4563 pattern_left_label_end++;
4564 }
4565
4566 /* If it's not trivial and there is no wildcard, it can't
4567 * match */
4568 if (!pattern_wildcard)
Evan Broderbe554312013-06-27 00:05:25 -07004569 return 0;
4570
4571 /* Make sure all labels match except the leftmost */
4572 hostname_left_label_end = strchr(hostname, '.');
4573 if (!hostname_left_label_end
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004574 || strcasecmp(pattern_left_label_end, hostname_left_label_end) != 0)
Evan Broderbe554312013-06-27 00:05:25 -07004575 return 0;
4576
4577 /* Make sure the leftmost label of the hostname is long enough
4578 * that the wildcard can match */
Emeric Brun369da852013-10-08 11:39:35 +02004579 if (hostname_left_label_end - hostname < (pattern_left_label_end - pattern) - 1)
Evan Broderbe554312013-06-27 00:05:25 -07004580 return 0;
4581
4582 /* Finally compare the string on either side of the
4583 * wildcard */
4584 prefixlen = pattern_wildcard - pattern;
4585 suffixlen = pattern_left_label_end - (pattern_wildcard + 1);
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004586 if ((prefixlen && (strncasecmp(pattern, hostname, prefixlen) != 0))
4587 || (suffixlen && (strncasecmp(pattern_wildcard + 1, hostname_left_label_end - suffixlen, suffixlen) != 0)))
Evan Broderbe554312013-06-27 00:05:25 -07004588 return 0;
4589
4590 return 1;
4591}
4592
4593static int ssl_sock_srv_verifycbk(int ok, X509_STORE_CTX *ctx)
4594{
4595 SSL *ssl;
4596 struct connection *conn;
Olivier Houchard66ab4982019-02-26 18:37:15 +01004597 struct ssl_sock_ctx *ssl_ctx;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004598 const char *servername;
Willy Tarreau71d058c2017-07-26 20:09:56 +02004599 const char *sni;
Evan Broderbe554312013-06-27 00:05:25 -07004600
4601 int depth;
4602 X509 *cert;
4603 STACK_OF(GENERAL_NAME) *alt_names;
4604 int i;
4605 X509_NAME *cert_subject;
4606 char *str;
4607
4608 if (ok == 0)
4609 return ok;
4610
4611 ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02004612 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard66ab4982019-02-26 18:37:15 +01004613 ssl_ctx = conn->xprt_ctx;
Evan Broderbe554312013-06-27 00:05:25 -07004614
Willy Tarreauad92a9a2017-07-28 11:38:41 +02004615 /* We're checking if the provided hostnames match the desired one. The
4616 * desired hostname comes from the SNI we presented if any, or if not
4617 * provided then it may have been explicitly stated using a "verifyhost"
4618 * directive. If neither is set, we don't care about the name so the
4619 * verification is OK.
Willy Tarreau2ab88672017-07-05 18:23:03 +02004620 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01004621 servername = SSL_get_servername(ssl_ctx->ssl, TLSEXT_NAMETYPE_host_name);
Willy Tarreau71d058c2017-07-26 20:09:56 +02004622 sni = servername;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004623 if (!servername) {
Willy Tarreau07d94e42018-09-20 10:57:52 +02004624 servername = __objt_server(conn->target)->ssl_ctx.verify_host;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004625 if (!servername)
4626 return ok;
4627 }
Evan Broderbe554312013-06-27 00:05:25 -07004628
4629 /* We only need to verify the CN on the actual server cert,
4630 * not the indirect CAs */
4631 depth = X509_STORE_CTX_get_error_depth(ctx);
4632 if (depth != 0)
4633 return ok;
4634
4635 /* At this point, the cert is *not* OK unless we can find a
4636 * hostname match */
4637 ok = 0;
4638
4639 cert = X509_STORE_CTX_get_current_cert(ctx);
4640 /* It seems like this might happen if verify peer isn't set */
4641 if (!cert)
4642 return ok;
4643
4644 alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
4645 if (alt_names) {
4646 for (i = 0; !ok && i < sk_GENERAL_NAME_num(alt_names); i++) {
4647 GENERAL_NAME *name = sk_GENERAL_NAME_value(alt_names, i);
4648 if (name->type == GEN_DNS) {
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004649#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Emeric Bruna33410c2013-09-17 15:47:48 +02004650 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.ia5) >= 0) {
4651#else
Evan Broderbe554312013-06-27 00:05:25 -07004652 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
Emeric Bruna33410c2013-09-17 15:47:48 +02004653#endif
Evan Broderbe554312013-06-27 00:05:25 -07004654 ok = ssl_sock_srv_hostcheck(str, servername);
4655 OPENSSL_free(str);
4656 }
4657 }
4658 }
Emeric Brun4ad50a42013-09-17 15:19:54 +02004659 sk_GENERAL_NAME_pop_free(alt_names, GENERAL_NAME_free);
Evan Broderbe554312013-06-27 00:05:25 -07004660 }
4661
4662 cert_subject = X509_get_subject_name(cert);
4663 i = -1;
4664 while (!ok && (i = X509_NAME_get_index_by_NID(cert_subject, NID_commonName, i)) != -1) {
4665 X509_NAME_ENTRY *entry = X509_NAME_get_entry(cert_subject, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02004666 ASN1_STRING *value;
4667 value = X509_NAME_ENTRY_get_data(entry);
4668 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
Evan Broderbe554312013-06-27 00:05:25 -07004669 ok = ssl_sock_srv_hostcheck(str, servername);
4670 OPENSSL_free(str);
4671 }
4672 }
4673
Willy Tarreau71d058c2017-07-26 20:09:56 +02004674 /* report the mismatch and indicate if SNI was used or not */
4675 if (!ok && !conn->err_code)
4676 conn->err_code = sni ? CO_ER_SSL_MISMATCH_SNI : CO_ER_SSL_MISMATCH;
Evan Broderbe554312013-06-27 00:05:25 -07004677 return ok;
4678}
4679
Emeric Brun94324a42012-10-11 14:00:19 +02004680/* prepare ssl context from servers options. Returns an error count */
Willy Tarreau03209342016-12-22 17:08:28 +01004681int ssl_sock_prepare_srv_ctx(struct server *srv)
Emeric Brun94324a42012-10-11 14:00:19 +02004682{
Willy Tarreau03209342016-12-22 17:08:28 +01004683 struct proxy *curproxy = srv->proxy;
Emeric Brun94324a42012-10-11 14:00:19 +02004684 int cfgerr = 0;
William Lallemand6338b7d2021-12-28 18:47:17 +01004685 SSL_CTX *ctx;
Emeric Brun94324a42012-10-11 14:00:19 +02004686
Thierry Fournier383085f2013-01-24 14:15:43 +01004687 /* Make sure openssl opens /dev/urandom before the chroot */
4688 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004689 ha_alert("OpenSSL random data generator initialization failed.\n");
Thierry Fournier383085f2013-01-24 14:15:43 +01004690 cfgerr++;
4691 }
4692
Willy Tarreaufce03112015-01-15 21:32:40 +01004693 /* Automatic memory computations need to know we use SSL there */
4694 global.ssl_used_backend = 1;
4695
4696 /* Initiate SSL context for current server */
Emeric Brun821bb9b2017-06-15 16:37:39 +02004697 if (!srv->ssl_ctx.reused_sess) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01004698 if ((srv->ssl_ctx.reused_sess = calloc(1, global.nbthread*sizeof(*srv->ssl_ctx.reused_sess))) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004699 ha_alert("Proxy '%s', server '%s' [%s:%d] out of memory.\n",
4700 curproxy->id, srv->id,
4701 srv->conf.file, srv->conf.line);
Emeric Brun821bb9b2017-06-15 16:37:39 +02004702 cfgerr++;
4703 return cfgerr;
4704 }
4705 }
Christopher Fauletf61f33a2020-03-27 18:55:49 +01004706 if (srv->use_ssl == 1)
Emeric Brun94324a42012-10-11 14:00:19 +02004707 srv->xprt = &ssl_sock;
Emeric Brun94324a42012-10-11 14:00:19 +02004708
William Lallemand6338b7d2021-12-28 18:47:17 +01004709 if (srv->ssl_ctx.client_crt) {
4710 char *err = NULL;
4711 int err_code = 0;
4712
4713 /* If there is a crt keyword there, the SSL_CTX will be created here. */
4714 err_code = ssl_sock_load_srv_cert(srv->ssl_ctx.client_crt, srv, &err);
4715 if (err_code != ERR_NONE) {
4716 if ((err_code & ERR_WARN) && !(err_code & ERR_ALERT))
4717 ha_warning("%s", err);
4718 else
4719 ha_alert("%s", err);
4720
4721 if (err_code & (ERR_FATAL|ERR_ABORT))
4722 cfgerr++;
4723 }
4724 ha_free(&err);
4725 }
4726
4727 ctx = srv->ssl_ctx.ctx;
4728
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004729 /* The context will be uninitialized if there wasn't any "cert" option
4730 * in the server line. */
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004731 if (!ctx) {
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004732 ctx = SSL_CTX_new(SSLv23_client_method());
4733 if (!ctx) {
4734 ha_alert("config : %s '%s', server '%s': unable to allocate ssl context.\n",
4735 proxy_type_str(curproxy), curproxy->id,
4736 srv->id);
4737 cfgerr++;
4738 return cfgerr;
4739 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004740
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004741 srv->ssl_ctx.ctx = ctx;
4742 }
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004743
4744 cfgerr += ssl_sock_prepare_srv_ssl_ctx(srv, srv->ssl_ctx.ctx);
4745
4746 return cfgerr;
4747}
4748
4749
4750/* Initialize an SSL context that will be used on the backend side.
4751 * Returns an error count.
4752 */
4753int ssl_sock_prepare_srv_ssl_ctx(const struct server *srv, SSL_CTX *ctx)
4754{
4755 struct proxy *curproxy = srv->proxy;
4756 int cfgerr = 0;
4757 long options =
4758 SSL_OP_ALL | /* all known workarounds for bugs */
4759 SSL_OP_NO_SSLv2 |
4760 SSL_OP_NO_COMPRESSION;
4761 long mode =
4762 SSL_MODE_ENABLE_PARTIAL_WRITE |
4763 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
4764 SSL_MODE_RELEASE_BUFFERS |
4765 SSL_MODE_SMALL_BUFFERS;
4766 int verify = SSL_VERIFY_NONE;
4767 const struct tls_version_filter *conf_ssl_methods = &srv->ssl_ctx.methods;
4768 int i, min, max, hole;
4769 int flags = MC_SSL_O_ALL;
4770
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004771 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01004772 ha_warning("config : %s '%s': no-sslv3/no-tlsv1x are ignored for server '%s'. "
4773 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4774 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004775 else
4776 flags = conf_ssl_methods->flags;
4777
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004778 /* Real min and max should be determinate with configuration and openssl's capabilities */
4779 if (conf_ssl_methods->min)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004780 flags |= (methodVersions[conf_ssl_methods->min].flag - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004781 if (conf_ssl_methods->max)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004782 flags |= ~((methodVersions[conf_ssl_methods->max].flag << 1) - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004783
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004784 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004785 min = max = CONF_TLSV_NONE;
4786 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004787 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004788 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004789 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004790 if (min) {
4791 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004792 ha_warning("config : %s '%s': SSL/TLS versions range not contiguous for server '%s'. "
4793 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4794 proxy_type_str(curproxy), curproxy->id, srv->id,
4795 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004796 hole = 0;
4797 }
4798 max = i;
4799 }
4800 else {
4801 min = max = i;
4802 }
4803 }
4804 else {
4805 if (min)
4806 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004807 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004808 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004809 ha_alert("config : %s '%s': all SSL/TLS versions are disabled for server '%s'.\n",
4810 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004811 cfgerr += 1;
4812 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004813
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004814#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004815 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08004816 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004817 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004818 methodVersions[min].ctx_set_version(ctx, SET_CLIENT);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004819 else
4820 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4821 if (flags & methodVersions[i].flag)
4822 options |= methodVersions[i].option;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004823#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004824 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004825 methodVersions[min].ctx_set_version(ctx, SET_MIN);
4826 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004827#endif
4828
4829 if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLS_TICKETS)
4830 options |= SSL_OP_NO_TICKET;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004831 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004832
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05004833#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004834 if (global_ssl.async)
4835 mode |= SSL_MODE_ASYNC;
4836#endif
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004837 SSL_CTX_set_mode(ctx, mode);
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004838
Emeric Brun850efd52014-01-29 12:24:34 +01004839 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
4840 verify = SSL_VERIFY_PEER;
Emeric Brun850efd52014-01-29 12:24:34 +01004841 switch (srv->ssl_ctx.verify) {
4842 case SSL_SOCK_VERIFY_NONE:
4843 verify = SSL_VERIFY_NONE;
4844 break;
4845 case SSL_SOCK_VERIFY_REQUIRED:
4846 verify = SSL_VERIFY_PEER;
4847 break;
4848 }
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004849 SSL_CTX_set_verify(ctx, verify,
Willy Tarreau2ab88672017-07-05 18:23:03 +02004850 (srv->ssl_ctx.verify_host || (verify & SSL_VERIFY_PEER)) ? ssl_sock_srv_verifycbk : NULL);
Emeric Brun850efd52014-01-29 12:24:34 +01004851 if (verify & SSL_VERIFY_PEER) {
Emeric Brunef42d922012-10-11 16:11:36 +02004852 if (srv->ssl_ctx.ca_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004853 /* set CAfile to verify */
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004854 if (!ssl_set_verify_locations_file(ctx, srv->ssl_ctx.ca_file)) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004855 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to set CA file '%s'.\n",
Christopher Faulet767a84b2017-11-24 16:50:31 +01004856 curproxy->id, srv->id,
4857 srv->conf.file, srv->conf.line, srv->ssl_ctx.ca_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004858 cfgerr++;
4859 }
4860 }
Emeric Brun850efd52014-01-29 12:24:34 +01004861 else {
4862 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
Christopher Faulet767a84b2017-11-24 16:50:31 +01004863 ha_alert("Proxy '%s', server '%s' [%s:%d] verify is enabled by default but no CA file specified. If you're running on a LAN where you're certain to trust the server's certificate, please set an explicit 'verify none' statement on the 'server' line, or use 'ssl-server-verify none' in the global section to disable server-side verifications by default.\n",
4864 curproxy->id, srv->id,
4865 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004866 else
Christopher Faulet767a84b2017-11-24 16:50:31 +01004867 ha_alert("Proxy '%s', server '%s' [%s:%d] verify is enabled but no CA file specified.\n",
4868 curproxy->id, srv->id,
4869 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004870 cfgerr++;
4871 }
Emeric Brunef42d922012-10-11 16:11:36 +02004872#ifdef X509_V_FLAG_CRL_CHECK
4873 if (srv->ssl_ctx.crl_file) {
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004874 X509_STORE *store = SSL_CTX_get_cert_store(ctx);
Emeric Brunef42d922012-10-11 16:11:36 +02004875
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004876 if (!ssl_set_cert_crl_file(store, srv->ssl_ctx.crl_file)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004877 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to configure CRL file '%s'.\n",
4878 curproxy->id, srv->id,
4879 srv->conf.file, srv->conf.line, srv->ssl_ctx.crl_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004880 cfgerr++;
4881 }
4882 else {
4883 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4884 }
4885 }
4886#endif
4887 }
4888
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004889 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_NO_INTERNAL_STORE);
4890 SSL_CTX_sess_set_new_cb(ctx, ssl_sess_new_srv_cb);
Emeric Brun94324a42012-10-11 14:00:19 +02004891 if (srv->ssl_ctx.ciphers &&
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004892 !SSL_CTX_set_cipher_list(ctx, srv->ssl_ctx.ciphers)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004893 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set SSL cipher list to '%s'.\n",
4894 curproxy->id, srv->id,
4895 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphers);
Emeric Brun94324a42012-10-11 14:00:19 +02004896 cfgerr++;
4897 }
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004898
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004899#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004900 if (srv->ssl_ctx.ciphersuites &&
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004901 !SSL_CTX_set_ciphersuites(ctx, srv->ssl_ctx.ciphersuites)) {
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004902 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set TLS 1.3 cipher suites to '%s'.\n",
4903 curproxy->id, srv->id,
4904 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphersuites);
4905 cfgerr++;
4906 }
4907#endif
Olivier Houchardc7566002018-11-20 23:33:50 +01004908#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
4909 if (srv->ssl_ctx.npn_str)
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004910 SSL_CTX_set_next_proto_select_cb(ctx, ssl_sock_srv_select_protos, (struct server*)srv);
Olivier Houchardc7566002018-11-20 23:33:50 +01004911#endif
4912#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
4913 if (srv->ssl_ctx.alpn_str)
4914 SSL_CTX_set_alpn_protos(ctx, (unsigned char *)srv->ssl_ctx.alpn_str, srv->ssl_ctx.alpn_len);
4915#endif
4916
Emeric Brun94324a42012-10-11 14:00:19 +02004917
4918 return cfgerr;
4919}
4920
Frédéric Lécailleec216522020-11-23 14:33:30 +01004921/*
4922 * Create an initial CTX used to start the SSL connections.
4923 * May be used by QUIC xprt which makes usage of SSL sessions initialized from SSL_CTXs.
4924 * Returns 0 if succeeded, or something >0 if not.
4925 */
4926#ifdef USE_QUIC
4927static int ssl_initial_ctx(struct bind_conf *bind_conf)
4928{
4929 if (bind_conf->xprt == xprt_get(XPRT_QUIC))
4930 return ssl_quic_initial_ctx(bind_conf);
4931 else
4932 return ssl_sock_initial_ctx(bind_conf);
4933}
4934#else
4935static int ssl_initial_ctx(struct bind_conf *bind_conf)
4936{
4937 return ssl_sock_initial_ctx(bind_conf);
4938}
4939#endif
4940
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004941/* Walks down the two trees in bind_conf and prepares all certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02004942 * be NULL, in which case nothing is done. Returns the number of errors
4943 * encountered.
4944 */
Willy Tarreau03209342016-12-22 17:08:28 +01004945int ssl_sock_prepare_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02004946{
4947 struct ebmb_node *node;
4948 struct sni_ctx *sni;
4949 int err = 0;
William Lallemand8b453912019-11-21 15:48:10 +01004950 int errcode = 0;
4951 char *errmsg = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004952
Willy Tarreaufce03112015-01-15 21:32:40 +01004953 /* Automatic memory computations need to know we use SSL there */
4954 global.ssl_used_frontend = 1;
4955
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004956 /* Make sure openssl opens /dev/urandom before the chroot */
4957 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004958 ha_alert("OpenSSL random data generator initialization failed.\n");
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004959 err++;
4960 }
4961 /* Create initial_ctx used to start the ssl connection before do switchctx */
4962 if (!bind_conf->initial_ctx) {
Frédéric Lécailleec216522020-11-23 14:33:30 +01004963 err += ssl_initial_ctx(bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004964 /* It should not be necessary to call this function, but it's
4965 necessary first to check and move all initialisation related
Frédéric Lécailleec216522020-11-23 14:33:30 +01004966 to initial_ctx in ssl_initial_ctx. */
William Lallemand8b453912019-11-21 15:48:10 +01004967 errcode |= ssl_sock_prepare_ctx(bind_conf, NULL, bind_conf->initial_ctx, &errmsg);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004968 }
Emeric Brun0bed9942014-10-30 19:25:24 +01004969 if (bind_conf->default_ctx)
William Lallemand8b453912019-11-21 15:48:10 +01004970 errcode |= ssl_sock_prepare_ctx(bind_conf, bind_conf->default_ssl_conf, bind_conf->default_ctx, &errmsg);
Emeric Brun0bed9942014-10-30 19:25:24 +01004971
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004972 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004973 while (node) {
4974 sni = ebmb_entry(node, struct sni_ctx, name);
Emeric Brun0bed9942014-10-30 19:25:24 +01004975 if (!sni->order && sni->ctx != bind_conf->default_ctx)
4976 /* only initialize the CTX on its first occurrence and
4977 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004978 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004979 node = ebmb_next(node);
4980 }
4981
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004982 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004983 while (node) {
4984 sni = ebmb_entry(node, struct sni_ctx, name);
William Lallemand8b453912019-11-21 15:48:10 +01004985 if (!sni->order && sni->ctx != bind_conf->default_ctx) {
Emeric Brun0bed9942014-10-30 19:25:24 +01004986 /* only initialize the CTX on its first occurrence and
4987 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004988 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
4989 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02004990 node = ebmb_next(node);
4991 }
William Lallemand8b453912019-11-21 15:48:10 +01004992
4993 if (errcode & ERR_WARN) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004994 ha_warning("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004995 } else if (errcode & ERR_CODE) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004996 ha_alert("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004997 err++;
4998 }
4999
5000 free(errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005001 return err;
5002}
5003
Willy Tarreau55d37912016-12-21 23:38:39 +01005004/* Prepares all the contexts for a bind_conf and allocates the shared SSL
5005 * context if needed. Returns < 0 on error, 0 on success. The warnings and
5006 * alerts are directly emitted since the rest of the stack does it below.
5007 */
5008int ssl_sock_prepare_bind_conf(struct bind_conf *bind_conf)
5009{
5010 struct proxy *px = bind_conf->frontend;
5011 int alloc_ctx;
5012 int err;
5013
5014 if (!bind_conf->is_ssl) {
5015 if (bind_conf->default_ctx) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005016 ha_warning("Proxy '%s': A certificate was specified but SSL was not enabled on bind '%s' at [%s:%d] (use 'ssl').\n",
5017 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Willy Tarreau55d37912016-12-21 23:38:39 +01005018 }
5019 return 0;
5020 }
5021 if (!bind_conf->default_ctx) {
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02005022 if (bind_conf->strict_sni && !bind_conf->generate_certs) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005023 ha_warning("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d], ssl connections will fail (use 'crt').\n",
5024 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02005025 }
5026 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005027 ha_alert("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d] (use 'crt').\n",
5028 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02005029 return -1;
5030 }
Willy Tarreau55d37912016-12-21 23:38:39 +01005031 }
William Lallemandc61c0b32017-12-04 18:46:39 +01005032 if (!ssl_shctx && global.tune.sslcachesize) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01005033 alloc_ctx = shctx_init(&ssl_shctx, global.tune.sslcachesize,
Frédéric Lécailleb7838af2018-10-22 16:21:39 +02005034 sizeof(struct sh_ssl_sess_hdr) + SHSESS_BLOCK_MIN_SIZE, -1,
William Lallemandc3cd35f2017-11-28 11:04:43 +01005035 sizeof(*sh_ssl_sess_tree),
5036 ((global.nbthread > 1) || (!global_ssl.private_cache && (global.nbproc > 1))) ? 1 : 0);
Frédéric Lécaille4c8aa112018-10-25 20:22:46 +02005037 if (alloc_ctx <= 0) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01005038 if (alloc_ctx == SHCTX_E_INIT_LOCK)
5039 ha_alert("Unable to initialize the lock for the shared SSL session cache. You can retry using the global statement 'tune.ssl.force-private-cache' but it could increase CPU usage due to renegotiations if nbproc > 1.\n");
5040 else
5041 ha_alert("Unable to allocate SSL session cache.\n");
5042 return -1;
5043 }
5044 /* free block callback */
5045 ssl_shctx->free_block = sh_ssl_sess_free_blocks;
5046 /* init the root tree within the extra space */
5047 sh_ssl_sess_tree = (void *)ssl_shctx + sizeof(struct shared_context);
5048 *sh_ssl_sess_tree = EB_ROOT_UNIQUE;
Willy Tarreau55d37912016-12-21 23:38:39 +01005049 }
Willy Tarreau55d37912016-12-21 23:38:39 +01005050 err = 0;
5051 /* initialize all certificate contexts */
5052 err += ssl_sock_prepare_all_ctx(bind_conf);
5053
5054 /* initialize CA variables if the certificates generation is enabled */
5055 err += ssl_sock_load_ca(bind_conf);
5056
5057 return -err;
5058}
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005059
William Lallemand9d118682021-12-30 11:25:43 +01005060/* release ssl context allocated for servers. Most of the field free here
5061 * must also be allocated in srv_ssl_settings_cpy() */
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005062void ssl_sock_free_srv_ctx(struct server *srv)
5063{
Olivier Houchardc7566002018-11-20 23:33:50 +01005064#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
William Lallemand9d118682021-12-30 11:25:43 +01005065 ha_free(&srv->ssl_ctx.alpn_str);
Olivier Houchardc7566002018-11-20 23:33:50 +01005066#endif
Lukas Tribusda95fd92018-11-25 13:21:27 +01005067#ifdef OPENSSL_NPN_NEGOTIATED
William Lallemand9d118682021-12-30 11:25:43 +01005068 ha_free(&srv->ssl_ctx.npn_str);
Lukas Tribus7706b852018-11-26 22:57:17 +01005069#endif
Christopher Faulet58feb492020-10-07 13:20:23 +02005070 if (srv->ssl_ctx.reused_sess) {
5071 int i;
5072
William Lallemandc78ac5a2021-11-17 02:59:21 +01005073 for (i = 0; i < global.nbthread; i++) {
Willy Tarreaue709e822021-02-26 21:06:32 +01005074 ha_free(&srv->ssl_ctx.reused_sess[i].ptr);
William Lallemandc78ac5a2021-11-17 02:59:21 +01005075 ha_free(&srv->ssl_ctx.reused_sess[i].sni);
5076 }
Willy Tarreaue709e822021-02-26 21:06:32 +01005077 ha_free(&srv->ssl_ctx.reused_sess);
Christopher Faulet58feb492020-10-07 13:20:23 +02005078 }
5079
Willy Tarreaue709e822021-02-26 21:06:32 +01005080 if (srv->ssl_ctx.ctx) {
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005081 SSL_CTX_free(srv->ssl_ctx.ctx);
Willy Tarreaue709e822021-02-26 21:06:32 +01005082 srv->ssl_ctx.ctx = NULL;
5083 }
William Lallemand9d118682021-12-30 11:25:43 +01005084
5085 ha_free(&srv->ssl_ctx.ca_file);
5086 ha_free(&srv->ssl_ctx.crl_file);
5087 ha_free(&srv->ssl_ctx.client_crt);
5088 ha_free(&srv->ssl_ctx.verify_host);
5089#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
5090 ha_free(&srv->sni_expr);
William Lallemand17d0caa2022-03-16 17:48:19 +01005091 release_sample_expr(srv->ssl_ctx.sni);
5092 srv->ssl_ctx.sni = NULL;
William Lallemand9d118682021-12-30 11:25:43 +01005093#endif
5094 ha_free(&srv->ssl_ctx.ciphers);
5095#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
5096 ha_free(&srv->ssl_ctx.ciphersuites);
5097#endif
William Lallemandec3d2d62021-12-30 14:45:19 +01005098 /* If there is a certificate we must unlink the ckch instance */
5099 ckch_inst_free(srv->ssl_ctx.inst);
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005100}
5101
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005102/* Walks down the two trees in bind_conf and frees all the certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02005103 * be NULL, in which case nothing is done. The default_ctx is nullified too.
5104 */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005105void ssl_sock_free_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02005106{
5107 struct ebmb_node *node, *back;
5108 struct sni_ctx *sni;
5109
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005110 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005111 while (node) {
5112 sni = ebmb_entry(node, struct sni_ctx, name);
5113 back = ebmb_next(node);
5114 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02005115 SSL_CTX_free(sni->ctx);
Willy Tarreau2b718102021-04-21 07:32:39 +02005116 LIST_DELETE(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005117 free(sni);
5118 node = back;
5119 }
5120
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005121 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005122 while (node) {
5123 sni = ebmb_entry(node, struct sni_ctx, name);
5124 back = ebmb_next(node);
5125 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02005126 SSL_CTX_free(sni->ctx);
Willy Tarreau2b718102021-04-21 07:32:39 +02005127 LIST_DELETE(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005128 free(sni);
5129 node = back;
5130 }
William Lallemandb2408692020-06-24 09:54:29 +02005131
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01005132 SSL_CTX_free(bind_conf->initial_ctx);
5133 bind_conf->initial_ctx = NULL;
William Lallemand02e19a52020-04-08 16:11:26 +02005134 SSL_CTX_free(bind_conf->default_ctx);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005135 bind_conf->default_ctx = NULL;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01005136 bind_conf->default_ssl_conf = NULL;
Emeric Brune1f38db2012-09-03 20:36:47 +02005137}
William Lallemandb2408692020-06-24 09:54:29 +02005138
5139
5140void ssl_sock_deinit()
5141{
5142 crtlist_deinit(); /* must be free'd before the ckchs */
5143 ckch_deinit();
5144}
5145REGISTER_POST_DEINIT(ssl_sock_deinit);
Emeric Brune1f38db2012-09-03 20:36:47 +02005146
Willy Tarreau795cdab2016-12-22 17:30:54 +01005147/* Destroys all the contexts for a bind_conf. This is used during deinit(). */
5148void ssl_sock_destroy_bind_conf(struct bind_conf *bind_conf)
5149{
5150 ssl_sock_free_ca(bind_conf);
5151 ssl_sock_free_all_ctx(bind_conf);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01005152 ssl_sock_free_ssl_conf(&bind_conf->ssl_conf);
Willy Tarreau795cdab2016-12-22 17:30:54 +01005153 free(bind_conf->ca_sign_file);
5154 free(bind_conf->ca_sign_pass);
Willy Tarreau17b4aa12018-07-17 10:05:32 +02005155 if (bind_conf->keys_ref && !--bind_conf->keys_ref->refcount) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01005156 free(bind_conf->keys_ref->filename);
5157 free(bind_conf->keys_ref->tlskeys);
Willy Tarreau2b718102021-04-21 07:32:39 +02005158 LIST_DELETE(&bind_conf->keys_ref->list);
Willy Tarreau795cdab2016-12-22 17:30:54 +01005159 free(bind_conf->keys_ref);
5160 }
5161 bind_conf->keys_ref = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01005162 bind_conf->ca_sign_pass = NULL;
5163 bind_conf->ca_sign_file = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01005164}
5165
Christopher Faulet31af49d2015-06-09 17:29:50 +02005166/* Load CA cert file and private key used to generate certificates */
5167int
Willy Tarreau03209342016-12-22 17:08:28 +01005168ssl_sock_load_ca(struct bind_conf *bind_conf)
Christopher Faulet31af49d2015-06-09 17:29:50 +02005169{
Willy Tarreau03209342016-12-22 17:08:28 +01005170 struct proxy *px = bind_conf->frontend;
Shimi Gersner5846c492020-08-23 13:58:12 +03005171 struct cert_key_and_chain *ckch = NULL;
5172 int ret = 0;
5173 char *err = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005174
Christopher Fauletf8bb0ce2017-09-15 09:52:49 +02005175 if (!bind_conf->generate_certs)
Shimi Gersner5846c492020-08-23 13:58:12 +03005176 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005177
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005178#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02005179 if (global_ssl.ctx_cache) {
Willy Tarreauef934602016-12-22 23:12:01 +01005180 ssl_ctx_lru_tree = lru64_new(global_ssl.ctx_cache);
Emeric Brun821bb9b2017-06-15 16:37:39 +02005181 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02005182 ssl_ctx_lru_seed = (unsigned int)time(NULL);
Emeric Brun821bb9b2017-06-15 16:37:39 +02005183 ssl_ctx_serial = now_ms;
Willy Tarreaua84c2672015-10-09 12:10:13 +02005184#endif
Christopher Fauletd2cab922015-07-28 16:03:47 +02005185
Christopher Faulet31af49d2015-06-09 17:29:50 +02005186 if (!bind_conf->ca_sign_file) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005187 ha_alert("Proxy '%s': cannot enable certificate generation, "
5188 "no CA certificate File configured at [%s:%d].\n",
5189 px->id, bind_conf->file, bind_conf->line);
Shimi Gersner5846c492020-08-23 13:58:12 +03005190 goto failed;
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02005191 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005192
Shimi Gersner5846c492020-08-23 13:58:12 +03005193 /* Allocate cert structure */
Tim Duesterhuse52b6e52020-09-12 20:26:43 +02005194 ckch = calloc(1, sizeof(*ckch));
Shimi Gersner5846c492020-08-23 13:58:12 +03005195 if (!ckch) {
5196 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain allocation failure\n",
5197 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line);
5198 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005199 }
Shimi Gersner5846c492020-08-23 13:58:12 +03005200
5201 /* Try to parse file */
5202 if (ssl_sock_load_files_into_ckch(bind_conf->ca_sign_file, ckch, &err)) {
5203 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain loading failed: %s\n",
5204 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line, err);
Willy Tarreau01acf562021-02-26 21:12:15 +01005205 free(err);
Shimi Gersner5846c492020-08-23 13:58:12 +03005206 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005207 }
Shimi Gersner5846c492020-08-23 13:58:12 +03005208
5209 /* Fail if missing cert or pkey */
5210 if ((!ckch->cert) || (!ckch->key)) {
5211 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain missing certificate or private key\n",
5212 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line);
5213 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005214 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005215
Shimi Gersner5846c492020-08-23 13:58:12 +03005216 /* Final assignment to bind */
5217 bind_conf->ca_sign_ckch = ckch;
5218 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005219
Shimi Gersner5846c492020-08-23 13:58:12 +03005220 failed:
5221 if (ckch) {
5222 ssl_sock_free_cert_key_and_chain_contents(ckch);
5223 free(ckch);
5224 }
5225
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02005226 bind_conf->generate_certs = 0;
Shimi Gersner5846c492020-08-23 13:58:12 +03005227 ret++;
5228 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005229}
5230
5231/* Release CA cert and private key used to generate certificated */
5232void
5233ssl_sock_free_ca(struct bind_conf *bind_conf)
5234{
Shimi Gersner5846c492020-08-23 13:58:12 +03005235 if (bind_conf->ca_sign_ckch) {
5236 ssl_sock_free_cert_key_and_chain_contents(bind_conf->ca_sign_ckch);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01005237 ha_free(&bind_conf->ca_sign_ckch);
Shimi Gersner5846c492020-08-23 13:58:12 +03005238 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005239}
5240
Emeric Brun46591952012-05-18 15:47:34 +02005241/*
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005242 * Try to allocate the BIO and SSL session objects of <conn> connection with <bio> and
5243 * <ssl> as addresses, <bio_meth> as BIO method and <ssl_ctx> as SSL context inherited settings.
5244 * Connect the allocated BIO to the allocated SSL session. Also set <ctx> as address of custom
5245 * data for the BIO and store <conn> as user data of the SSL session object.
Ilya Shipitsin1e9a6662021-01-05 22:10:46 +05005246 * This is the responsibility of the caller to check the validity of all the pointers passed
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005247 * as parameters to this function.
5248 * Return 0 if succeeded, -1 if not. If failed, sets the ->err_code member of <conn> to
5249 * CO_ER_SSL_NO_MEM.
5250 */
5251int ssl_bio_and_sess_init(struct connection *conn, SSL_CTX *ssl_ctx,
5252 SSL **ssl, BIO **bio, BIO_METHOD *bio_meth, void *ctx)
5253{
5254 int retry = 1;
5255
5256 retry:
5257 /* Alloc a new SSL session. */
5258 *ssl = SSL_new(ssl_ctx);
5259 if (!*ssl) {
5260 if (!retry--)
5261 goto err;
5262
5263 pool_gc(NULL);
5264 goto retry;
5265 }
5266
5267 *bio = BIO_new(bio_meth);
5268 if (!*bio) {
5269 SSL_free(*ssl);
5270 *ssl = NULL;
5271 if (!retry--)
5272 goto err;
5273
5274 pool_gc(NULL);
5275 goto retry;
5276 }
5277
5278 BIO_set_data(*bio, ctx);
5279 SSL_set_bio(*ssl, *bio, *bio);
5280
5281 /* set connection pointer. */
5282 if (!SSL_set_ex_data(*ssl, ssl_app_data_index, conn)) {
5283 SSL_free(*ssl);
5284 *ssl = NULL;
5285 if (!retry--)
5286 goto err;
5287
5288 pool_gc(NULL);
5289 goto retry;
5290 }
5291
5292 return 0;
5293
5294 err:
5295 conn->err_code = CO_ER_SSL_NO_MEM;
5296 return -1;
5297}
5298
Olivier Houchardbc5ce922021-03-05 23:47:00 +01005299/* This function is called when all the XPRT have been initialized. We can
5300 * now attempt to start the SSL handshake.
5301 */
5302static int ssl_sock_start(struct connection *conn, void *xprt_ctx)
5303{
5304 struct ssl_sock_ctx *ctx = xprt_ctx;
5305
5306 if (ctx->xprt->start) {
5307 int ret;
5308
5309 ret = ctx->xprt->start(conn, ctx->xprt_ctx);
5310 if (ret < 0)
5311 return ret;
5312 }
5313 tasklet_wakeup(ctx->wait_event.tasklet);
5314
5315 return 0;
5316}
5317
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005318/*
Emeric Brun46591952012-05-18 15:47:34 +02005319 * This function is called if SSL * context is not yet allocated. The function
5320 * is designed to be called before any other data-layer operation and sets the
5321 * handshake flag on the connection. It is safe to call it multiple times.
5322 * It returns 0 on success and -1 in error case.
5323 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005324static int ssl_sock_init(struct connection *conn, void **xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005325{
Olivier Houchard66ab4982019-02-26 18:37:15 +01005326 struct ssl_sock_ctx *ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005327 /* already initialized */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005328 if (*xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005329 return 0;
5330
Olivier Houchard66ab4982019-02-26 18:37:15 +01005331 ctx = pool_alloc(ssl_sock_ctx_pool);
5332 if (!ctx) {
5333 conn->err_code = CO_ER_SSL_NO_MEM;
5334 return -1;
5335 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005336 ctx->wait_event.tasklet = tasklet_new();
5337 if (!ctx->wait_event.tasklet) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005338 conn->err_code = CO_ER_SSL_NO_MEM;
5339 pool_free(ssl_sock_ctx_pool, ctx);
5340 return -1;
5341 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005342 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
5343 ctx->wait_event.tasklet->context = ctx;
Willy Tarreau9205ab32021-02-25 15:31:00 +01005344 ctx->wait_event.tasklet->state |= TASK_HEAVY; // assign it to the bulk queue during handshake
Olivier Houchardea8dd942019-05-20 14:02:16 +02005345 ctx->wait_event.events = 0;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005346 ctx->sent_early_data = 0;
Olivier Houchard54907bb2019-12-19 15:02:39 +01005347 ctx->early_buf = BUF_NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02005348 ctx->conn = conn;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005349 ctx->subs = NULL;
Emeric Brun5762a0d2019-09-06 15:36:02 +02005350 ctx->xprt_st = 0;
5351 ctx->xprt_ctx = NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02005352
5353 /* Only work with sockets for now, this should be adapted when we'll
5354 * add QUIC support.
5355 */
5356 ctx->xprt = xprt_get(XPRT_RAW);
Olivier Houchard19afb272019-05-23 18:24:07 +02005357 if (ctx->xprt->init) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005358 if (ctx->xprt->init(conn, &ctx->xprt_ctx) != 0)
5359 goto err;
Olivier Houchard19afb272019-05-23 18:24:07 +02005360 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005361
Willy Tarreau20879a02012-12-03 16:32:10 +01005362 if (global.maxsslconn && sslconns >= global.maxsslconn) {
5363 conn->err_code = CO_ER_SSL_TOO_MANY;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005364 goto err;
Willy Tarreau20879a02012-12-03 16:32:10 +01005365 }
Willy Tarreau403edff2012-09-06 11:58:37 +02005366
Emeric Brun46591952012-05-18 15:47:34 +02005367 /* If it is in client mode initiate SSL session
5368 in connect state otherwise accept state */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01005369 if (objt_server(conn->target)) {
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005370 if (ssl_bio_and_sess_init(conn, __objt_server(conn->target)->ssl_ctx.ctx,
5371 &ctx->ssl, &ctx->bio, ha_meth, ctx) == -1)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005372 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005373
Olivier Houchard66ab4982019-02-26 18:37:15 +01005374 SSL_set_connect_state(ctx->ssl);
William Lallemand3ce6eed2021-02-08 10:43:44 +01005375 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &(__objt_server(conn->target)->ssl_ctx.lock));
Willy Tarreau07d94e42018-09-20 10:57:52 +02005376 if (__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr) {
5377 const unsigned char *ptr = __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr;
5378 SSL_SESSION *sess = d2i_SSL_SESSION(NULL, &ptr, __objt_server(conn->target)->ssl_ctx.reused_sess[tid].size);
Olivier Houchard66ab4982019-02-26 18:37:15 +01005379 if (sess && !SSL_set_session(ctx->ssl, sess)) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01005380 SSL_SESSION_free(sess);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01005381 ha_free(&__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr);
Olivier Houcharde6060c52017-11-16 17:42:52 +01005382 } else if (sess) {
5383 SSL_SESSION_free(sess);
Emeric Brun55476152014-11-12 17:35:37 +01005384 }
5385 }
William Lallemand3ce6eed2021-02-08 10:43:44 +01005386 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &(__objt_server(conn->target)->ssl_ctx.lock));
Evan Broderbe554312013-06-27 00:05:25 -07005387
Emeric Brun46591952012-05-18 15:47:34 +02005388 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005389 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Willy Tarreau403edff2012-09-06 11:58:37 +02005390
Willy Tarreau4781b152021-04-06 13:53:36 +02005391 _HA_ATOMIC_INC(&sslconns);
5392 _HA_ATOMIC_INC(&totalsslconns);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005393 *xprt_ctx = ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005394 return 0;
5395 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +01005396 else if (objt_listener(conn->target)) {
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005397 struct bind_conf *bc = __objt_listener(conn->target)->bind_conf;
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005398
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005399 if (ssl_bio_and_sess_init(conn, bc->initial_ctx,
5400 &ctx->ssl, &ctx->bio, ha_meth, ctx) == -1)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005401 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005402
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005403#ifdef SSL_READ_EARLY_DATA_SUCCESS
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005404 if (bc->ssl_conf.early_data) {
Frédéric Lécaille3139c1b2020-01-24 14:56:18 +01005405 b_alloc(&ctx->early_buf);
5406 SSL_set_max_early_data(ctx->ssl,
5407 /* Only allow early data if we managed to allocate
5408 * a buffer.
5409 */
5410 (!b_is_null(&ctx->early_buf)) ?
5411 global.tune.bufsize - global.tune.maxrewrite : 0);
5412 }
5413#endif
5414
Olivier Houchard66ab4982019-02-26 18:37:15 +01005415 SSL_set_accept_state(ctx->ssl);
Emeric Brune1f38db2012-09-03 20:36:47 +02005416
Emeric Brun46591952012-05-18 15:47:34 +02005417 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005418 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005419#ifdef SSL_READ_EARLY_DATA_SUCCESS
Willy Tarreaua84986a2021-02-03 11:21:38 +01005420 if (bc->ssl_conf.early_data)
5421 conn->flags |= CO_FL_EARLY_SSL_HS;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005422#endif
Willy Tarreau403edff2012-09-06 11:58:37 +02005423
Willy Tarreau4781b152021-04-06 13:53:36 +02005424 _HA_ATOMIC_INC(&sslconns);
5425 _HA_ATOMIC_INC(&totalsslconns);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005426 *xprt_ctx = ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005427 return 0;
5428 }
5429 /* don't know how to handle such a target */
Willy Tarreau20879a02012-12-03 16:32:10 +01005430 conn->err_code = CO_ER_SSL_NO_TARGET;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005431err:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005432 if (ctx && ctx->wait_event.tasklet)
5433 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01005434 pool_free(ssl_sock_ctx_pool, ctx);
Emeric Brun46591952012-05-18 15:47:34 +02005435 return -1;
5436}
5437
5438
5439/* This is the callback which is used when an SSL handshake is pending. It
5440 * updates the FD status if it wants some polling before being called again.
5441 * It returns 0 if it fails in a fatal way or needs to poll to go further,
5442 * otherwise it returns non-zero and removes itself from the connection's
5443 * flags (the bit is provided in <flag> by the caller).
5444 */
Olivier Houchard000694c2019-05-23 14:45:12 +02005445static int ssl_sock_handshake(struct connection *conn, unsigned int flag)
Emeric Brun46591952012-05-18 15:47:34 +02005446{
Olivier Houchard66ab4982019-02-26 18:37:15 +01005447 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005448 int ret;
Willy Tarreau42995282020-11-06 13:19:18 +01005449 struct ssl_counters *counters = NULL;
5450 struct ssl_counters *counters_px = NULL;
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005451 struct listener *li;
5452 struct server *srv;
Willy Tarreau06300382021-02-02 15:42:25 +01005453 socklen_t lskerr;
5454 int skerr;
5455
Emeric Brun46591952012-05-18 15:47:34 +02005456
Willy Tarreau3c728722014-01-23 13:50:42 +01005457 if (!conn_ctrl_ready(conn))
Willy Tarreauf79c8172013-10-21 16:30:56 +02005458 return 0;
5459
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005460 /* get counters */
5461 switch (obj_type(conn->target)) {
5462 case OBJ_TYPE_LISTENER:
5463 li = objt_listener(conn->target);
5464 counters = EXTRA_COUNTERS_GET(li->extra_counters, &ssl_stats_module);
5465 counters_px = EXTRA_COUNTERS_GET(li->bind_conf->frontend->extra_counters_fe,
5466 &ssl_stats_module);
5467 break;
5468
5469 case OBJ_TYPE_SERVER:
5470 srv = objt_server(conn->target);
5471 counters = EXTRA_COUNTERS_GET(srv->extra_counters, &ssl_stats_module);
5472 counters_px = EXTRA_COUNTERS_GET(srv->proxy->extra_counters_be,
5473 &ssl_stats_module);
5474 break;
5475
5476 default:
5477 break;
5478 }
5479
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02005480 if (!conn->xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005481 goto out_error;
5482
Willy Tarreau06300382021-02-02 15:42:25 +01005483 /* don't start calculating a handshake on a dead connection */
5484 if (conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH))
5485 goto out_error;
5486
5487 /* FIXME/WT: for now we don't have a clear way to inspect the connection
5488 * status from the lower layers, so let's check the FD directly. Ideally
5489 * the xprt layers should provide some status indicating their knowledge
5490 * of shutdowns or error.
5491 */
5492 skerr = 0;
5493 lskerr = sizeof(skerr);
5494 if ((getsockopt(conn->handle.fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr) < 0) ||
5495 skerr != 0)
5496 goto out_error;
5497
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005498#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005499 /*
5500 * Check if we have early data. If we do, we have to read them
5501 * before SSL_do_handshake() is called, And there's no way to
5502 * detect early data, except to try to read them
5503 */
5504 if (conn->flags & CO_FL_EARLY_SSL_HS) {
Olivier Houchard54907bb2019-12-19 15:02:39 +01005505 size_t read_data = 0;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005506
Olivier Houchard54907bb2019-12-19 15:02:39 +01005507 while (1) {
5508 ret = SSL_read_early_data(ctx->ssl,
5509 b_tail(&ctx->early_buf), b_room(&ctx->early_buf),
5510 &read_data);
5511 if (ret == SSL_READ_EARLY_DATA_ERROR)
5512 goto check_error;
5513 if (read_data > 0) {
5514 conn->flags |= CO_FL_EARLY_DATA;
5515 b_add(&ctx->early_buf, read_data);
5516 }
5517 if (ret == SSL_READ_EARLY_DATA_FINISH) {
5518 conn->flags &= ~CO_FL_EARLY_SSL_HS;
5519 if (!b_data(&ctx->early_buf))
5520 b_free(&ctx->early_buf);
5521 break;
5522 }
5523 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02005524 }
5525#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005526 /* If we use SSL_do_handshake to process a reneg initiated by
5527 * the remote peer, it sometimes returns SSL_ERROR_SSL.
5528 * Usually SSL_write and SSL_read are used and process implicitly
5529 * the reneg handshake.
5530 * Here we use SSL_peek as a workaround for reneg.
5531 */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01005532 if (!(conn->flags & CO_FL_WAIT_L6_CONN) && SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005533 char c;
5534
Olivier Houchard66ab4982019-02-26 18:37:15 +01005535 ret = SSL_peek(ctx->ssl, &c, 1);
Emeric Brun674b7432012-11-08 19:21:55 +01005536 if (ret <= 0) {
5537 /* handshake may have not been completed, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005538 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005539
Emeric Brun674b7432012-11-08 19:21:55 +01005540 if (ret == SSL_ERROR_WANT_WRITE) {
5541 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005542 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005543 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005544 return 0;
5545 }
5546 else if (ret == SSL_ERROR_WANT_READ) {
5547 /* handshake may have been completed but we have
5548 * no more data to read.
5549 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005550 if (!SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005551 ret = 1;
5552 goto reneg_ok;
5553 }
5554 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005555 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005556 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005557 return 0;
5558 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005559#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005560 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005561 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005562 return 0;
5563 }
5564#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005565 else if (ret == SSL_ERROR_SYSCALL) {
5566 /* if errno is null, then connection was successfully established */
5567 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5568 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Willy Tarreau20879a02012-12-03 16:32:10 +01005569 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005570#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5571 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005572 conn->err_code = CO_ER_SSL_HANDSHAKE;
5573#else
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005574 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005575#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005576 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005577 OSSL_HANDSHAKE_STATE state = SSL_get_state((SSL *)ctx->ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005578 empty_handshake = state == TLS_ST_BEFORE;
5579#else
Lukas Tribus49799162019-07-08 14:29:15 +02005580 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5581 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005582#endif
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005583 if (empty_handshake) {
Emeric Brun29f037d2014-04-25 19:05:36 +02005584 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005585 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005586 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5587 else
5588 conn->err_code = CO_ER_SSL_EMPTY;
5589 }
5590 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005591 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005592 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5593 else
5594 conn->err_code = CO_ER_SSL_ABORT;
5595 }
5596 }
5597 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005598 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005599 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
Willy Tarreau20879a02012-12-03 16:32:10 +01005600 else
Emeric Brun29f037d2014-04-25 19:05:36 +02005601 conn->err_code = CO_ER_SSL_HANDSHAKE;
5602 }
Lukas Tribus49799162019-07-08 14:29:15 +02005603#endif /* BoringSSL or LibreSSL */
Willy Tarreau20879a02012-12-03 16:32:10 +01005604 }
Emeric Brun674b7432012-11-08 19:21:55 +01005605 goto out_error;
5606 }
5607 else {
5608 /* Fail on all other handshake errors */
5609 /* Note: OpenSSL may leave unread bytes in the socket's
5610 * buffer, causing an RST to be emitted upon close() on
5611 * TCP sockets. We first try to drain possibly pending
5612 * data to avoid this as much as possible.
5613 */
Willy Tarreau2ded48d2020-12-11 16:20:34 +01005614 conn_ctrl_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005615 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005616 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005617 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun674b7432012-11-08 19:21:55 +01005618 goto out_error;
5619 }
5620 }
5621 /* read some data: consider handshake completed */
5622 goto reneg_ok;
5623 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005624 ret = SSL_do_handshake(ctx->ssl);
Olivier Houchardc2aae742017-09-22 18:26:28 +02005625check_error:
Emeric Brun46591952012-05-18 15:47:34 +02005626 if (ret != 1) {
5627 /* handshake did not complete, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005628 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005629
5630 if (ret == SSL_ERROR_WANT_WRITE) {
5631 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005632 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005633 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005634 return 0;
5635 }
5636 else if (ret == SSL_ERROR_WANT_READ) {
5637 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchardea8dd942019-05-20 14:02:16 +02005638 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005639 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
5640 SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005641 return 0;
5642 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005643#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005644 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005645 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005646 return 0;
5647 }
5648#endif
Willy Tarreau89230192012-09-28 20:22:13 +02005649 else if (ret == SSL_ERROR_SYSCALL) {
5650 /* if errno is null, then connection was successfully established */
5651 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5652 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005653 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005654#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5655 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005656 conn->err_code = CO_ER_SSL_HANDSHAKE;
5657#else
5658 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005659#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005660 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005661 OSSL_HANDSHAKE_STATE state = SSL_get_state(ctx->ssl);
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005662 empty_handshake = state == TLS_ST_BEFORE;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005663#else
Lukas Tribus49799162019-07-08 14:29:15 +02005664 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5665 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005666#endif
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005667 if (empty_handshake) {
5668 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005669 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005670 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5671 else
5672 conn->err_code = CO_ER_SSL_EMPTY;
5673 }
5674 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005675 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005676 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5677 else
5678 conn->err_code = CO_ER_SSL_ABORT;
5679 }
Emeric Brun29f037d2014-04-25 19:05:36 +02005680 }
5681 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005682 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005683 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5684 else
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005685 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun29f037d2014-04-25 19:05:36 +02005686 }
Lukas Tribus49799162019-07-08 14:29:15 +02005687#endif /* BoringSSL or LibreSSL */
Emeric Brun29f037d2014-04-25 19:05:36 +02005688 }
Willy Tarreau89230192012-09-28 20:22:13 +02005689 goto out_error;
5690 }
Emeric Brun46591952012-05-18 15:47:34 +02005691 else {
5692 /* Fail on all other handshake errors */
Willy Tarreau566dc552012-10-19 20:52:18 +02005693 /* Note: OpenSSL may leave unread bytes in the socket's
5694 * buffer, causing an RST to be emitted upon close() on
5695 * TCP sockets. We first try to drain possibly pending
5696 * data to avoid this as much as possible.
5697 */
Willy Tarreau2ded48d2020-12-11 16:20:34 +01005698 conn_ctrl_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005699 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005700 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005701 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005702 goto out_error;
5703 }
5704 }
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005705#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard522eea72017-11-03 16:27:47 +01005706 else {
5707 /*
5708 * If the server refused the early data, we have to send a
5709 * 425 to the client, as we no longer have the data to sent
5710 * them again.
5711 */
5712 if ((conn->flags & CO_FL_EARLY_DATA) && (objt_server(conn->target))) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005713 if (SSL_get_early_data_status(ctx->ssl) == SSL_EARLY_DATA_REJECTED) {
Olivier Houchard522eea72017-11-03 16:27:47 +01005714 conn->err_code = CO_ER_SSL_EARLY_FAILED;
5715 goto out_error;
5716 }
5717 }
5718 }
5719#endif
5720
Emeric Brun46591952012-05-18 15:47:34 +02005721
Emeric Brun674b7432012-11-08 19:21:55 +01005722reneg_ok:
Emeric Brunb5e42a82017-06-06 12:35:14 +00005723
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005724#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005725 /* ASYNC engine API doesn't support moving read/write
5726 * buffers. So we disable ASYNC mode right after
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05005727 * the handshake to avoid buffer overflow.
Emeric Brunb5e42a82017-06-06 12:35:14 +00005728 */
5729 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005730 SSL_clear_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005731#endif
Emeric Brun46591952012-05-18 15:47:34 +02005732 /* Handshake succeeded */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005733 if (!SSL_session_reused(ctx->ssl)) {
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005734 if (objt_server(conn->target)) {
5735 update_freq_ctr(&global.ssl_be_keys_per_sec, 1);
5736 if (global.ssl_be_keys_per_sec.curr_ctr > global.ssl_be_keys_max)
5737 global.ssl_be_keys_max = global.ssl_be_keys_per_sec.curr_ctr;
Emeric Brun46591952012-05-18 15:47:34 +02005738 }
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005739 else {
5740 update_freq_ctr(&global.ssl_fe_keys_per_sec, 1);
5741 if (global.ssl_fe_keys_per_sec.curr_ctr > global.ssl_fe_keys_max)
5742 global.ssl_fe_keys_max = global.ssl_fe_keys_per_sec.curr_ctr;
5743 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005744
Willy Tarreau42995282020-11-06 13:19:18 +01005745 if (counters) {
Willy Tarreau41736ab2021-11-22 17:46:13 +01005746 HA_ATOMIC_INC(&counters->sess);
5747 HA_ATOMIC_INC(&counters_px->sess);
Willy Tarreau42995282020-11-06 13:19:18 +01005748 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005749 }
Willy Tarreau42995282020-11-06 13:19:18 +01005750 else if (counters) {
Willy Tarreau41736ab2021-11-22 17:46:13 +01005751 HA_ATOMIC_INC(&counters->reused_sess);
5752 HA_ATOMIC_INC(&counters_px->reused_sess);
Emeric Brun46591952012-05-18 15:47:34 +02005753 }
5754
5755 /* The connection is now established at both layers, it's time to leave */
5756 conn->flags &= ~(flag | CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN);
5757 return 1;
5758
5759 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01005760 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005761 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005762 ERR_clear_error();
5763
Emeric Brun9fa89732012-10-04 17:09:56 +02005764 /* free resumed session if exists */
William Lallemand3ce6eed2021-02-08 10:43:44 +01005765 if (objt_server(conn->target)) {
5766 struct server *s = __objt_server(conn->target);
5767 /* RWLOCK: only rdlock the SSL cache even when writing in it because there is
5768 * one cache per thread, it only prevents to flush it from the CLI in
5769 * another thread */
5770
5771 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01005772 if (s->ssl_ctx.reused_sess[tid].ptr)
5773 ha_free(&s->ssl_ctx.reused_sess[tid].ptr);
William Lallemand3ce6eed2021-02-08 10:43:44 +01005774 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Emeric Brun9fa89732012-10-04 17:09:56 +02005775 }
5776
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005777 if (counters) {
Willy Tarreau41736ab2021-11-22 17:46:13 +01005778 HA_ATOMIC_INC(&counters->failed_handshake);
5779 HA_ATOMIC_INC(&counters_px->failed_handshake);
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005780 }
5781
Emeric Brun46591952012-05-18 15:47:34 +02005782 /* Fail on all other handshake errors */
5783 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01005784 if (!conn->err_code)
5785 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005786 return 0;
5787}
5788
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005789/* Called from the upper layer, to subscribe <es> to events <event_type>. The
5790 * event subscriber <es> is not allowed to change from a previous call as long
5791 * as at least one event is still subscribed. The <event_type> must only be a
5792 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0,
5793 * unless the transport layer was already released.
5794 */
5795static int ssl_subscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005796{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005797 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005798
Olivier Houchard0ff28652019-06-24 18:57:39 +02005799 if (!ctx)
5800 return -1;
5801
Willy Tarreau113d52b2020-01-10 09:20:26 +01005802 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005803 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005804
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005805 ctx->subs = es;
5806 es->events |= event_type;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005807
5808 /* we may have to subscribe to lower layers for new events */
5809 event_type &= ~ctx->wait_event.events;
5810 if (event_type && !(conn->flags & CO_FL_SSL_WAIT_HS))
5811 ctx->xprt->subscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005812 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005813}
5814
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005815/* Called from the upper layer, to unsubscribe <es> from events <event_type>.
5816 * The <es> pointer is not allowed to differ from the one passed to the
5817 * subscribe() call. It always returns zero.
5818 */
5819static int ssl_unsubscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005820{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005821 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005822
Willy Tarreau113d52b2020-01-10 09:20:26 +01005823 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005824 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005825
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005826 es->events &= ~event_type;
5827 if (!es->events)
Willy Tarreau113d52b2020-01-10 09:20:26 +01005828 ctx->subs = NULL;
5829
5830 /* If we subscribed, and we're not doing the handshake,
5831 * then we subscribed because the upper layer asked for it,
5832 * as the upper layer is no longer interested, we can
5833 * unsubscribe too.
5834 */
5835 event_type &= ctx->wait_event.events;
5836 if (event_type && !(ctx->conn->flags & CO_FL_SSL_WAIT_HS))
5837 conn_unsubscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005838
5839 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005840}
5841
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005842/* The connection has been taken over, so destroy the old tasklet and create
5843 * a new one. The original thread ID must be passed into orig_tid
5844 * It should be called with the takeover lock for the old thread held.
5845 * Returns 0 on success, and -1 on failure
5846 */
5847static int ssl_takeover(struct connection *conn, void *xprt_ctx, int orig_tid)
5848{
5849 struct ssl_sock_ctx *ctx = xprt_ctx;
5850 struct tasklet *tl = tasklet_new();
5851
5852 if (!tl)
5853 return -1;
5854
5855 ctx->wait_event.tasklet->context = NULL;
5856 tasklet_wakeup_on(ctx->wait_event.tasklet, orig_tid);
5857 ctx->wait_event.tasklet = tl;
5858 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
5859 ctx->wait_event.tasklet->context = ctx;
5860 return 0;
5861}
5862
Willy Tarreau41491682021-03-02 17:29:56 +01005863/* notify the next xprt that the connection is about to become idle and that it
5864 * may be stolen at any time after the function returns and that any tasklet in
5865 * the chain must be careful before dereferencing its context.
5866 */
5867static void ssl_set_idle(struct connection *conn, void *xprt_ctx)
5868{
5869 struct ssl_sock_ctx *ctx = xprt_ctx;
5870
5871 if (!ctx || !ctx->wait_event.tasklet)
5872 return;
5873
5874 HA_ATOMIC_OR(&ctx->wait_event.tasklet->state, TASK_F_USR1);
5875 if (ctx->xprt)
5876 xprt_set_idle(conn, ctx->xprt, ctx->xprt_ctx);
5877}
5878
5879/* notify the next xprt that the connection is not idle anymore and that it may
5880 * not be stolen before the next xprt_set_idle().
5881 */
5882static void ssl_set_used(struct connection *conn, void *xprt_ctx)
5883{
5884 struct ssl_sock_ctx *ctx = xprt_ctx;
5885
5886 if (!ctx || !ctx->wait_event.tasklet)
5887 return;
5888
5889 HA_ATOMIC_OR(&ctx->wait_event.tasklet->state, TASK_F_USR1);
5890 if (ctx->xprt)
5891 xprt_set_used(conn, ctx->xprt, ctx->xprt_ctx);
5892}
5893
Olivier Houchard2e055482019-05-27 19:50:12 +02005894/* Use the provided XPRT as an underlying XPRT, and provide the old one.
5895 * Returns 0 on success, and non-zero on failure.
5896 */
5897static int ssl_add_xprt(struct connection *conn, void *xprt_ctx, void *toadd_ctx, const struct xprt_ops *toadd_ops, void **oldxprt_ctx, const struct xprt_ops **oldxprt_ops)
5898{
5899 struct ssl_sock_ctx *ctx = xprt_ctx;
5900
5901 if (oldxprt_ops != NULL)
5902 *oldxprt_ops = ctx->xprt;
5903 if (oldxprt_ctx != NULL)
5904 *oldxprt_ctx = ctx->xprt_ctx;
5905 ctx->xprt = toadd_ops;
5906 ctx->xprt_ctx = toadd_ctx;
5907 return 0;
5908}
5909
Olivier Houchard5149b592019-05-23 17:47:36 +02005910/* Remove the specified xprt. If if it our underlying XPRT, remove it and
5911 * return 0, otherwise just call the remove_xprt method from the underlying
5912 * XPRT.
5913 */
5914static int ssl_remove_xprt(struct connection *conn, void *xprt_ctx, void *toremove_ctx, const struct xprt_ops *newops, void *newctx)
5915{
5916 struct ssl_sock_ctx *ctx = xprt_ctx;
5917
5918 if (ctx->xprt_ctx == toremove_ctx) {
5919 ctx->xprt_ctx = newctx;
5920 ctx->xprt = newops;
5921 return 0;
5922 }
5923 return (ctx->xprt->remove_xprt(conn, ctx->xprt_ctx, toremove_ctx, newops, newctx));
5924}
5925
Willy Tarreau144f84a2021-03-02 16:09:26 +01005926struct task *ssl_sock_io_cb(struct task *t, void *context, unsigned int state)
Olivier Houchardea8dd942019-05-20 14:02:16 +02005927{
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005928 struct tasklet *tl = (struct tasklet *)t;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005929 struct ssl_sock_ctx *ctx = context;
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005930 struct connection *conn;
5931 int conn_in_list;
5932 int ret = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005933
Willy Tarreau41491682021-03-02 17:29:56 +01005934 if (state & TASK_F_USR1) {
5935 /* the tasklet was idling on an idle connection, it might have
5936 * been stolen, let's be careful!
5937 */
5938 HA_SPIN_LOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
5939 if (tl->context == NULL) {
5940 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
5941 tasklet_free(tl);
5942 return NULL;
5943 }
5944 conn = ctx->conn;
5945 conn_in_list = conn->flags & CO_FL_LIST_MASK;
5946 if (conn_in_list)
5947 conn_delete_from_tree(&conn->hash_node->node);
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01005948 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Willy Tarreau41491682021-03-02 17:29:56 +01005949 } else {
5950 conn = ctx->conn;
5951 conn_in_list = 0;
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005952 }
Willy Tarreau41491682021-03-02 17:29:56 +01005953
Olivier Houchardea8dd942019-05-20 14:02:16 +02005954 /* First if we're doing an handshake, try that */
Willy Tarreau9205ab32021-02-25 15:31:00 +01005955 if (ctx->conn->flags & CO_FL_SSL_WAIT_HS) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005956 ssl_sock_handshake(ctx->conn, CO_FL_SSL_WAIT_HS);
Willy Tarreau9205ab32021-02-25 15:31:00 +01005957 if (!(ctx->conn->flags & CO_FL_SSL_WAIT_HS)) {
5958 /* handshake completed, leave the bulk queue */
Willy Tarreau4c48edb2021-03-09 17:58:02 +01005959 _HA_ATOMIC_AND(&tl->state, ~TASK_HEAVY);
Willy Tarreau9205ab32021-02-25 15:31:00 +01005960 }
5961 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02005962 /* If we had an error, or the handshake is done and I/O is available,
5963 * let the upper layer know.
Olivier Houchard477902b2020-01-22 18:08:48 +01005964 * If no mux was set up yet, then call conn_create_mux()
Olivier Houchardea8dd942019-05-20 14:02:16 +02005965 * we can't be sure conn_fd_handler() will be called again.
5966 */
5967 if ((ctx->conn->flags & CO_FL_ERROR) ||
5968 !(ctx->conn->flags & CO_FL_SSL_WAIT_HS)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005969 int woke = 0;
5970
5971 /* On error, wake any waiter */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005972 if (ctx->subs) {
5973 tasklet_wakeup(ctx->subs->tasklet);
5974 ctx->subs->events = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005975 woke = 1;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005976 ctx->subs = NULL;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005977 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01005978
Olivier Houchardea8dd942019-05-20 14:02:16 +02005979 /* If we're the first xprt for the connection, let the
Olivier Houchard477902b2020-01-22 18:08:48 +01005980 * upper layers know. If we have no mux, create it,
5981 * and once we have a mux, call its wake method if we didn't
5982 * woke a tasklet already.
Olivier Houchardea8dd942019-05-20 14:02:16 +02005983 */
5984 if (ctx->conn->xprt_ctx == ctx) {
Olivier Houchard477902b2020-01-22 18:08:48 +01005985 if (!ctx->conn->mux)
5986 ret = conn_create_mux(ctx->conn);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005987 if (ret >= 0 && !woke && ctx->conn->mux && ctx->conn->mux->wake)
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005988 ret = ctx->conn->mux->wake(ctx->conn);
5989 goto leave;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005990 }
5991 }
Ilya Shipitsin761d64c2021-01-07 11:59:58 +05005992#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard54907bb2019-12-19 15:02:39 +01005993 /* If we have early data and somebody wants to receive, let them */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005994 else if (b_data(&ctx->early_buf) && ctx->subs &&
5995 ctx->subs->events & SUB_RETRY_RECV) {
5996 tasklet_wakeup(ctx->subs->tasklet);
5997 ctx->subs->events &= ~SUB_RETRY_RECV;
5998 if (!ctx->subs->events)
5999 ctx->subs = NULL;
Olivier Houchard54907bb2019-12-19 15:02:39 +01006000 }
6001#endif
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02006002leave:
6003 if (!ret && conn_in_list) {
6004 struct server *srv = objt_server(conn->target);
6005
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01006006 HA_SPIN_LOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02006007 if (conn_in_list == CO_FL_SAFE_LIST)
Willy Tarreau430bf4a2021-03-04 09:45:32 +01006008 ebmb_insert(&srv->per_thr[tid].safe_conns, &conn->hash_node->node, sizeof(conn->hash_node->hash));
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02006009 else
Willy Tarreau430bf4a2021-03-04 09:45:32 +01006010 ebmb_insert(&srv->per_thr[tid].idle_conns, &conn->hash_node->node, sizeof(conn->hash_node->hash));
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01006011 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02006012 }
Willy Tarreau74163142021-03-13 11:30:19 +01006013 return t;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006014}
6015
Emeric Brun46591952012-05-18 15:47:34 +02006016/* Receive up to <count> bytes from connection <conn>'s socket and store them
Willy Tarreauabf08d92014-01-14 11:31:27 +01006017 * into buffer <buf>. Only one call to recv() is performed, unless the
Emeric Brun46591952012-05-18 15:47:34 +02006018 * buffer wraps, in which case a second call may be performed. The connection's
6019 * flags are updated with whatever special event is detected (error, read0,
6020 * empty). The caller is responsible for taking care of those events and
6021 * avoiding the call if inappropriate. The function does not call the
6022 * connection's polling update function, so the caller is responsible for this.
6023 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006024static size_t ssl_sock_to_buf(struct connection *conn, void *xprt_ctx, struct buffer *buf, size_t count, int flags)
Emeric Brun46591952012-05-18 15:47:34 +02006025{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006026 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreaubfc4d772018-07-18 11:22:03 +02006027 ssize_t ret;
6028 size_t try, done = 0;
Emeric Brun46591952012-05-18 15:47:34 +02006029
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006030 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02006031 goto out_error;
6032
Ilya Shipitsin761d64c2021-01-07 11:59:58 +05006033#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard54907bb2019-12-19 15:02:39 +01006034 if (b_data(&ctx->early_buf)) {
6035 try = b_contig_space(buf);
6036 if (try > b_data(&ctx->early_buf))
6037 try = b_data(&ctx->early_buf);
6038 memcpy(b_tail(buf), b_head(&ctx->early_buf), try);
6039 b_add(buf, try);
6040 b_del(&ctx->early_buf, try);
6041 if (b_data(&ctx->early_buf) == 0)
6042 b_free(&ctx->early_buf);
6043 return try;
6044 }
6045#endif
6046
Willy Tarreau911db9b2020-01-23 16:27:54 +01006047 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02006048 /* a handshake was requested */
6049 return 0;
6050
Emeric Brun46591952012-05-18 15:47:34 +02006051 /* read the largest possible block. For this, we perform only one call
6052 * to recv() unless the buffer wraps and we exactly fill the first hunk,
6053 * in which case we accept to do it once again. A new attempt is made on
6054 * EINTR too.
6055 */
Willy Tarreau00b0fb92014-01-17 11:09:40 +01006056 while (count > 0) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02006057
Willy Tarreau591d4452018-06-15 17:21:00 +02006058 try = b_contig_space(buf);
6059 if (!try)
6060 break;
6061
Willy Tarreauabf08d92014-01-14 11:31:27 +01006062 if (try > count)
6063 try = count;
Willy Tarreau591d4452018-06-15 17:21:00 +02006064
Olivier Houchard66ab4982019-02-26 18:37:15 +01006065 ret = SSL_read(ctx->ssl, b_tail(buf), try);
Emmanuel Hocdetf967c312019-08-05 18:04:16 +02006066
Emeric Brune1f38db2012-09-03 20:36:47 +02006067 if (conn->flags & CO_FL_ERROR) {
6068 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01006069 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02006070 }
Emeric Brun46591952012-05-18 15:47:34 +02006071 if (ret > 0) {
Olivier Houchardacd14032018-06-28 18:17:23 +02006072 b_add(buf, ret);
Emeric Brun46591952012-05-18 15:47:34 +02006073 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02006074 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02006075 }
Emeric Brun46591952012-05-18 15:47:34 +02006076 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006077 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02006078 if (ret == SSL_ERROR_WANT_WRITE) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01006079 /* handshake is running, and it needs to enable write */
Emeric Brun46591952012-05-18 15:47:34 +02006080 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006081 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006082#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006083 /* Async mode can be re-enabled, because we're leaving data state.*/
6084 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006085 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006086#endif
Emeric Brun46591952012-05-18 15:47:34 +02006087 break;
6088 }
6089 else if (ret == SSL_ERROR_WANT_READ) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006090 if (SSL_renegotiate_pending(ctx->ssl)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02006091 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
6092 SUB_RETRY_RECV,
6093 &ctx->wait_event);
Emeric Brun282a76a2012-11-08 18:02:56 +01006094 /* handshake is running, and it may need to re-enable read */
6095 conn->flags |= CO_FL_SSL_WAIT_HS;
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006096#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006097 /* Async mode can be re-enabled, because we're leaving data state.*/
6098 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006099 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006100#endif
Emeric Brun282a76a2012-11-08 18:02:56 +01006101 break;
6102 }
Emeric Brun46591952012-05-18 15:47:34 +02006103 break;
Olivier Houchardc2aae742017-09-22 18:26:28 +02006104 } else if (ret == SSL_ERROR_ZERO_RETURN)
6105 goto read0;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01006106 /* For SSL_ERROR_SYSCALL, make sure to clear the error
6107 * stack before shutting down the connection for
6108 * reading. */
Olivier Houchard7e2e5052018-02-13 15:17:23 +01006109 if (ret == SSL_ERROR_SYSCALL && (!errno || errno == EAGAIN))
6110 goto clear_ssl_error;
Emeric Brun46591952012-05-18 15:47:34 +02006111 /* otherwise it's a real error */
6112 goto out_error;
6113 }
6114 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006115 leave:
Emeric Brun46591952012-05-18 15:47:34 +02006116 return done;
6117
Christopher Faulet4ac77a92018-02-19 14:25:15 +01006118 clear_ssl_error:
6119 /* Clear openssl global errors stack */
6120 ssl_sock_dump_errors(conn);
6121 ERR_clear_error();
Emeric Brun46591952012-05-18 15:47:34 +02006122 read0:
6123 conn_sock_read0(conn);
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006124 goto leave;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01006125
Emeric Brun46591952012-05-18 15:47:34 +02006126 out_error:
Olivier Houchard7e2e5052018-02-13 15:17:23 +01006127 conn->flags |= CO_FL_ERROR;
Emeric Brun644cde02012-12-14 11:21:13 +01006128 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006129 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006130 ERR_clear_error();
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006131 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02006132}
6133
6134
Willy Tarreau787db9a2018-06-14 18:31:46 +02006135/* Send up to <count> pending bytes from buffer <buf> to connection <conn>'s
6136 * socket. <flags> may contain some CO_SFL_* flags to hint the system about
6137 * other pending data for example, but this flag is ignored at the moment.
Emeric Brun46591952012-05-18 15:47:34 +02006138 * Only one call to send() is performed, unless the buffer wraps, in which case
6139 * a second call may be performed. The connection's flags are updated with
6140 * whatever special event is detected (error, empty). The caller is responsible
6141 * for taking care of those events and avoiding the call if inappropriate. The
6142 * function does not call the connection's polling update function, so the caller
Willy Tarreau787db9a2018-06-14 18:31:46 +02006143 * is responsible for this. The buffer's output is not adjusted, it's up to the
6144 * caller to take care of this. It's up to the caller to update the buffer's
6145 * contents based on the return value.
Emeric Brun46591952012-05-18 15:47:34 +02006146 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006147static size_t ssl_sock_from_buf(struct connection *conn, void *xprt_ctx, const struct buffer *buf, size_t count, int flags)
Emeric Brun46591952012-05-18 15:47:34 +02006148{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006149 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreau787db9a2018-06-14 18:31:46 +02006150 ssize_t ret;
6151 size_t try, done;
Emeric Brun46591952012-05-18 15:47:34 +02006152
6153 done = 0;
6154
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006155 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02006156 goto out_error;
6157
Willy Tarreau911db9b2020-01-23 16:27:54 +01006158 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS | CO_FL_EARLY_SSL_HS))
Emeric Brun46591952012-05-18 15:47:34 +02006159 /* a handshake was requested */
6160 return 0;
6161
6162 /* send the largest possible block. For this we perform only one call
6163 * to send() unless the buffer wraps and we exactly fill the first hunk,
6164 * in which case we accept to do it once again.
6165 */
Willy Tarreau787db9a2018-06-14 18:31:46 +02006166 while (count) {
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05006167#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02006168 size_t written_data;
6169#endif
6170
Willy Tarreau787db9a2018-06-14 18:31:46 +02006171 try = b_contig_data(buf, done);
6172 if (try > count)
6173 try = count;
Willy Tarreaubfd59462013-02-21 07:46:09 +01006174
Willy Tarreau7bed9452014-02-02 02:00:24 +01006175 if (!(flags & CO_SFL_STREAMER) &&
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006176 !(ctx->xprt_st & SSL_SOCK_SEND_UNLIMITED) &&
Willy Tarreauef934602016-12-22 23:12:01 +01006177 global_ssl.max_record && try > global_ssl.max_record) {
6178 try = global_ssl.max_record;
Willy Tarreau518cedd2014-02-17 15:43:01 +01006179 }
6180 else {
6181 /* we need to keep the information about the fact that
6182 * we're not limiting the upcoming send(), because if it
6183 * fails, we'll have to retry with at least as many data.
6184 */
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006185 ctx->xprt_st |= SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau518cedd2014-02-17 15:43:01 +01006186 }
Willy Tarreaubfd59462013-02-21 07:46:09 +01006187
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05006188#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard010941f2019-05-03 20:56:19 +02006189 if (!SSL_is_init_finished(ctx->ssl) && conn_is_back(conn)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02006190 unsigned int max_early;
6191
Olivier Houchard522eea72017-11-03 16:27:47 +01006192 if (objt_listener(conn->target))
Olivier Houchard66ab4982019-02-26 18:37:15 +01006193 max_early = SSL_get_max_early_data(ctx->ssl);
Olivier Houchard522eea72017-11-03 16:27:47 +01006194 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006195 if (SSL_get0_session(ctx->ssl))
6196 max_early = SSL_SESSION_get_max_early_data(SSL_get0_session(ctx->ssl));
Olivier Houchard522eea72017-11-03 16:27:47 +01006197 else
6198 max_early = 0;
6199 }
6200
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006201 if (try + ctx->sent_early_data > max_early) {
6202 try -= (try + ctx->sent_early_data) - max_early;
Olivier Houchard522eea72017-11-03 16:27:47 +01006203 if (try <= 0) {
Olivier Houchard010941f2019-05-03 20:56:19 +02006204 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006205 tasklet_wakeup(ctx->wait_event.tasklet);
Olivier Houchardc2aae742017-09-22 18:26:28 +02006206 break;
Olivier Houchard522eea72017-11-03 16:27:47 +01006207 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02006208 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01006209 ret = SSL_write_early_data(ctx->ssl, b_peek(buf, done), try, &written_data);
Olivier Houchardc2aae742017-09-22 18:26:28 +02006210 if (ret == 1) {
6211 ret = written_data;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006212 ctx->sent_early_data += ret;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006213 if (objt_server(conn->target)) {
Olivier Houchard522eea72017-11-03 16:27:47 +01006214 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN | CO_FL_EARLY_DATA;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006215 /* Initiate the handshake, now */
6216 tasklet_wakeup(ctx->wait_event.tasklet);
6217 }
Olivier Houchard522eea72017-11-03 16:27:47 +01006218
Olivier Houchardc2aae742017-09-22 18:26:28 +02006219 }
6220
6221 } else
6222#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01006223 ret = SSL_write(ctx->ssl, b_peek(buf, done), try);
Willy Tarreau518cedd2014-02-17 15:43:01 +01006224
Emeric Brune1f38db2012-09-03 20:36:47 +02006225 if (conn->flags & CO_FL_ERROR) {
6226 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01006227 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02006228 }
Emeric Brun46591952012-05-18 15:47:34 +02006229 if (ret > 0) {
Willy Tarreauc192b0a2020-01-23 09:11:58 +01006230 /* A send succeeded, so we can consider ourself connected */
6231 conn->flags &= ~CO_FL_WAIT_L4L6;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006232 ctx->xprt_st &= ~SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau787db9a2018-06-14 18:31:46 +02006233 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02006234 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02006235 }
6236 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006237 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006238
Emeric Brun46591952012-05-18 15:47:34 +02006239 if (ret == SSL_ERROR_WANT_WRITE) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006240 if (SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun282a76a2012-11-08 18:02:56 +01006241 /* handshake is running, and it may need to re-enable write */
6242 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006243 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006244#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006245 /* Async mode can be re-enabled, because we're leaving data state.*/
6246 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006247 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006248#endif
Emeric Brun282a76a2012-11-08 18:02:56 +01006249 break;
6250 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02006251
Emeric Brun46591952012-05-18 15:47:34 +02006252 break;
6253 }
6254 else if (ret == SSL_ERROR_WANT_READ) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01006255 /* handshake is running, and it needs to enable read */
Emeric Brun46591952012-05-18 15:47:34 +02006256 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006257 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
6258 SUB_RETRY_RECV,
6259 &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006260#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006261 /* Async mode can be re-enabled, because we're leaving data state.*/
6262 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006263 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006264#endif
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006265 break;
6266 }
Emeric Brun46591952012-05-18 15:47:34 +02006267 goto out_error;
6268 }
6269 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006270 leave:
Emeric Brun46591952012-05-18 15:47:34 +02006271 return done;
6272
6273 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01006274 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006275 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006276 ERR_clear_error();
6277
Emeric Brun46591952012-05-18 15:47:34 +02006278 conn->flags |= CO_FL_ERROR;
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006279 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02006280}
6281
Willy Tarreau832e2422021-05-13 10:11:03 +02006282void ssl_sock_close(struct connection *conn, void *xprt_ctx) {
Emeric Brun46591952012-05-18 15:47:34 +02006283
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006284 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006285
Olivier Houchardea8dd942019-05-20 14:02:16 +02006286
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006287 if (ctx) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02006288 if (ctx->wait_event.events != 0)
6289 ctx->xprt->unsubscribe(ctx->conn, ctx->xprt_ctx,
6290 ctx->wait_event.events,
6291 &ctx->wait_event);
Willy Tarreau113d52b2020-01-10 09:20:26 +01006292 if (ctx->subs) {
6293 ctx->subs->events = 0;
6294 tasklet_wakeup(ctx->subs->tasklet);
Olivier Houchardea8dd942019-05-20 14:02:16 +02006295 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01006296
Olivier Houchard692c1d02019-05-23 18:41:47 +02006297 if (ctx->xprt->close)
6298 ctx->xprt->close(conn, ctx->xprt_ctx);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006299#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +02006300 if (global_ssl.async) {
6301 OSSL_ASYNC_FD all_fd[32], afd;
6302 size_t num_all_fds = 0;
6303 int i;
6304
Olivier Houchard66ab4982019-02-26 18:37:15 +01006305 SSL_get_all_async_fds(ctx->ssl, NULL, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02006306 if (num_all_fds > 32) {
6307 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
6308 return;
6309 }
6310
Olivier Houchard66ab4982019-02-26 18:37:15 +01006311 SSL_get_all_async_fds(ctx->ssl, all_fd, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02006312
6313 /* If an async job is pending, we must try to
6314 to catch the end using polling before calling
6315 SSL_free */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006316 if (num_all_fds && SSL_waiting_for_async(ctx->ssl)) {
Emeric Brun3854e012017-05-17 20:42:48 +02006317 for (i=0 ; i < num_all_fds ; i++) {
6318 /* switch on an handler designed to
6319 * handle the SSL_free
6320 */
6321 afd = all_fd[i];
6322 fdtab[afd].iocb = ssl_async_fd_free;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006323 fdtab[afd].owner = ctx->ssl;
Emeric Brun3854e012017-05-17 20:42:48 +02006324 fd_want_recv(afd);
Emeric Brunce9e01c2017-05-31 10:02:53 +00006325 /* To ensure that the fd cache won't be used
6326 * and we'll catch a real RD event.
6327 */
6328 fd_cant_recv(afd);
Emeric Brun3854e012017-05-17 20:42:48 +02006329 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02006330 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01006331 pool_free(ssl_sock_ctx_pool, ctx);
Willy Tarreau4781b152021-04-06 13:53:36 +02006332 _HA_ATOMIC_INC(&jobs);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006333 return;
6334 }
Emeric Brun3854e012017-05-17 20:42:48 +02006335 /* Else we can remove the fds from the fdtab
6336 * and call SSL_free.
Willy Tarreau67672452020-08-26 11:44:17 +02006337 * note: we do a fd_stop_both and not a delete
Emeric Brun3854e012017-05-17 20:42:48 +02006338 * because the fd is owned by the engine.
6339 * the engine is responsible to close
6340 */
Emeric Brun64ff81b2022-07-01 17:36:50 +02006341 for (i=0 ; i < num_all_fds ; i++) {
6342 /* We want to remove the fd from the fdtab
6343 * but we flag it to disown because the
6344 * close is performed by the engine itself
6345 */
6346 fdtab[all_fd[i]].state |= FD_DISOWN;
6347 fd_delete(all_fd[i]);
6348 }
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006349 }
6350#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01006351 SSL_free(ctx->ssl);
Olivier Houchard54907bb2019-12-19 15:02:39 +01006352 b_free(&ctx->early_buf);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02006353 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01006354 pool_free(ssl_sock_ctx_pool, ctx);
Willy Tarreau4781b152021-04-06 13:53:36 +02006355 _HA_ATOMIC_DEC(&sslconns);
Emeric Brun46591952012-05-18 15:47:34 +02006356 }
Emeric Brun46591952012-05-18 15:47:34 +02006357}
6358
6359/* This function tries to perform a clean shutdown on an SSL connection, and in
6360 * any case, flags the connection as reusable if no handshake was in progress.
6361 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006362static void ssl_sock_shutw(struct connection *conn, void *xprt_ctx, int clean)
Emeric Brun46591952012-05-18 15:47:34 +02006363{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006364 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006365
Willy Tarreau911db9b2020-01-23 16:27:54 +01006366 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02006367 return;
Emmanuel Hocdet405ff312017-01-08 14:07:39 +01006368 if (!clean)
6369 /* don't sent notify on SSL_shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006370 SSL_set_quiet_shutdown(ctx->ssl, 1);
Emeric Brun46591952012-05-18 15:47:34 +02006371 /* no handshake was in progress, try a clean ssl shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006372 if (SSL_shutdown(ctx->ssl) <= 0) {
Emeric Brun644cde02012-12-14 11:21:13 +01006373 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006374 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006375 ERR_clear_error();
6376 }
Emeric Brun46591952012-05-18 15:47:34 +02006377}
6378
Emmanuel Hocdet96b78342017-10-31 15:46:07 +01006379
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05006380/* used for ppv2 pkey algo (can be used for logging) */
William Lallemandd4f946c2019-12-05 10:26:40 +01006381int ssl_sock_get_pkey_algo(struct connection *conn, struct buffer *out)
6382{
6383 struct ssl_sock_ctx *ctx;
6384 X509 *crt;
6385
6386 if (!ssl_sock_is_ssl(conn))
6387 return 0;
6388
6389 ctx = conn->xprt_ctx;
6390
6391 crt = SSL_get_certificate(ctx->ssl);
6392 if (!crt)
6393 return 0;
6394
6395 return cert_get_pkey_algo(crt, out);
6396}
6397
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006398/* used for ppv2 cert signature (can be used for logging) */
6399const char *ssl_sock_get_cert_sig(struct connection *conn)
6400{
Christopher Faulet82004142019-09-10 10:12:03 +02006401 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006402
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006403 __OPENSSL_110_CONST__ ASN1_OBJECT *algorithm;
6404 X509 *crt;
6405
6406 if (!ssl_sock_is_ssl(conn))
6407 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006408 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006409 crt = SSL_get_certificate(ctx->ssl);
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006410 if (!crt)
6411 return NULL;
6412 X509_ALGOR_get0(&algorithm, NULL, NULL, X509_get0_tbs_sigalg(crt));
6413 return OBJ_nid2sn(OBJ_obj2nid(algorithm));
6414}
6415
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006416/* used for ppv2 authority */
6417const char *ssl_sock_get_sni(struct connection *conn)
6418{
6419#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006420 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006421
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006422 if (!ssl_sock_is_ssl(conn))
6423 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006424 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006425 return SSL_get_servername(ctx->ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006426#else
Olivier Houchard66ab4982019-02-26 18:37:15 +01006427 return NULL;
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006428#endif
6429}
6430
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006431/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006432const char *ssl_sock_get_cipher_name(struct connection *conn)
6433{
Christopher Faulet82004142019-09-10 10:12:03 +02006434 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006435
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006436 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006437 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006438 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006439 return SSL_get_cipher_name(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006440}
6441
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006442/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006443const char *ssl_sock_get_proto_version(struct connection *conn)
6444{
Christopher Faulet82004142019-09-10 10:12:03 +02006445 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006446
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006447 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006448 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006449 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006450 return SSL_get_version(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006451}
6452
Olivier Houchardab28a322018-12-21 19:45:40 +01006453void ssl_sock_set_alpn(struct connection *conn, const unsigned char *alpn, int len)
6454{
6455#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Christopher Faulet82004142019-09-10 10:12:03 +02006456 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006457
Olivier Houcharde488ea82019-06-28 14:10:33 +02006458 if (!ssl_sock_is_ssl(conn))
6459 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006460 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006461 SSL_set_alpn_protos(ctx->ssl, alpn, len);
Olivier Houchardab28a322018-12-21 19:45:40 +01006462#endif
6463}
6464
Willy Tarreau119a4082016-12-22 21:58:38 +01006465/* Sets advertised SNI for outgoing connections. Please set <hostname> to NULL
6466 * to disable SNI.
6467 */
Willy Tarreau63076412015-07-10 11:33:32 +02006468void ssl_sock_set_servername(struct connection *conn, const char *hostname)
6469{
6470#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006471 struct ssl_sock_ctx *ctx;
William Lallemandc78ac5a2021-11-17 02:59:21 +01006472 struct server *s;
Willy Tarreau119a4082016-12-22 21:58:38 +01006473 char *prev_name;
6474
Willy Tarreau63076412015-07-10 11:33:32 +02006475 if (!ssl_sock_is_ssl(conn))
6476 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006477 ctx = conn->xprt_ctx;
William Lallemandc78ac5a2021-11-17 02:59:21 +01006478 s = __objt_server(conn->target);
Willy Tarreau63076412015-07-10 11:33:32 +02006479
Willy Tarreau119a4082016-12-22 21:58:38 +01006480 /* if the SNI changes, we must destroy the reusable context so that a
William Lallemandc78ac5a2021-11-17 02:59:21 +01006481 * new connection will present a new SNI. compare with the SNI
6482 * previously stored in the reused_sess */
6483 /* the RWLOCK is used to ensure that we are not trying to flush the
6484 * cache from the CLI */
6485
6486 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
6487 prev_name = s->ssl_ctx.reused_sess[tid].sni;
Willy Tarreau119a4082016-12-22 21:58:38 +01006488 if ((!prev_name && hostname) ||
6489 (prev_name && (!hostname || strcmp(hostname, prev_name) != 0)))
Olivier Houchard66ab4982019-02-26 18:37:15 +01006490 SSL_set_session(ctx->ssl, NULL);
William Lallemandc78ac5a2021-11-17 02:59:21 +01006491 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Willy Tarreau119a4082016-12-22 21:58:38 +01006492
Olivier Houchard66ab4982019-02-26 18:37:15 +01006493 SSL_set_tlsext_host_name(ctx->ssl, hostname);
Willy Tarreau63076412015-07-10 11:33:32 +02006494#endif
6495}
6496
Emeric Brun0abf8362014-06-24 18:26:41 +02006497/* Extract peer certificate's common name into the chunk dest
6498 * Returns
6499 * the len of the extracted common name
6500 * or 0 if no CN found in DN
6501 * or -1 on error case (i.e. no peer certificate)
6502 */
Willy Tarreau83061a82018-07-13 11:56:34 +02006503int ssl_sock_get_remote_common_name(struct connection *conn,
6504 struct buffer *dest)
David Safb76832014-05-08 23:42:08 -04006505{
Christopher Faulet82004142019-09-10 10:12:03 +02006506 struct ssl_sock_ctx *ctx;
David Safb76832014-05-08 23:42:08 -04006507 X509 *crt = NULL;
6508 X509_NAME *name;
David Safb76832014-05-08 23:42:08 -04006509 const char find_cn[] = "CN";
Willy Tarreau83061a82018-07-13 11:56:34 +02006510 const struct buffer find_cn_chunk = {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02006511 .area = (char *)&find_cn,
6512 .data = sizeof(find_cn)-1
David Safb76832014-05-08 23:42:08 -04006513 };
Emeric Brun0abf8362014-06-24 18:26:41 +02006514 int result = -1;
David Safb76832014-05-08 23:42:08 -04006515
6516 if (!ssl_sock_is_ssl(conn))
Emeric Brun0abf8362014-06-24 18:26:41 +02006517 goto out;
Christopher Faulet82004142019-09-10 10:12:03 +02006518 ctx = conn->xprt_ctx;
David Safb76832014-05-08 23:42:08 -04006519
6520 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006521 crt = SSL_get_peer_certificate(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006522 if (!crt)
6523 goto out;
6524
6525 name = X509_get_subject_name(crt);
6526 if (!name)
6527 goto out;
David Safb76832014-05-08 23:42:08 -04006528
Emeric Brun0abf8362014-06-24 18:26:41 +02006529 result = ssl_sock_get_dn_entry(name, &find_cn_chunk, 1, dest);
6530out:
David Safb76832014-05-08 23:42:08 -04006531 if (crt)
6532 X509_free(crt);
6533
6534 return result;
6535}
6536
Dave McCowan328fb582014-07-30 10:39:13 -04006537/* returns 1 if client passed a certificate for this session, 0 if not */
6538int ssl_sock_get_cert_used_sess(struct connection *conn)
6539{
Christopher Faulet82004142019-09-10 10:12:03 +02006540 struct ssl_sock_ctx *ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006541 X509 *crt = NULL;
6542
6543 if (!ssl_sock_is_ssl(conn))
6544 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006545 ctx = conn->xprt_ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006546
6547 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006548 crt = SSL_get_peer_certificate(ctx->ssl);
Dave McCowan328fb582014-07-30 10:39:13 -04006549 if (!crt)
6550 return 0;
6551
6552 X509_free(crt);
6553 return 1;
6554}
6555
6556/* returns 1 if client passed a certificate for this connection, 0 if not */
6557int ssl_sock_get_cert_used_conn(struct connection *conn)
David Safb76832014-05-08 23:42:08 -04006558{
Christopher Faulet82004142019-09-10 10:12:03 +02006559 struct ssl_sock_ctx *ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006560
David Safb76832014-05-08 23:42:08 -04006561 if (!ssl_sock_is_ssl(conn))
6562 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006563 ctx = conn->xprt_ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006564 return SSL_SOCK_ST_FL_VERIFY_DONE & ctx->xprt_st ? 1 : 0;
David Safb76832014-05-08 23:42:08 -04006565}
6566
6567/* returns result from SSL verify */
6568unsigned int ssl_sock_get_verify_result(struct connection *conn)
6569{
Christopher Faulet82004142019-09-10 10:12:03 +02006570 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006571
David Safb76832014-05-08 23:42:08 -04006572 if (!ssl_sock_is_ssl(conn))
6573 return (unsigned int)X509_V_ERR_APPLICATION_VERIFICATION;
Christopher Faulet82004142019-09-10 10:12:03 +02006574 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006575 return (unsigned int)SSL_get_verify_result(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006576}
6577
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006578/* Returns the application layer protocol name in <str> and <len> when known.
6579 * Zero is returned if the protocol name was not found, otherwise non-zero is
6580 * returned. The string is allocated in the SSL context and doesn't have to be
6581 * freed by the caller. NPN is also checked if available since older versions
6582 * of openssl (1.0.1) which are more common in field only support this one.
6583 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006584static int ssl_sock_get_alpn(const struct connection *conn, void *xprt_ctx, const char **str, int *len)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006585{
Olivier Houchard66ab4982019-02-26 18:37:15 +01006586#if defined(TLSEXT_TYPE_application_layer_protocol_negotiation) || \
6587 defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006588 struct ssl_sock_ctx *ctx = xprt_ctx;
6589 if (!ctx)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006590 return 0;
6591
6592 *str = NULL;
6593
6594#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Olivier Houchard66ab4982019-02-26 18:37:15 +01006595 SSL_get0_alpn_selected(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006596 if (*str)
6597 return 1;
6598#endif
Bernard Spil13c53f82018-02-15 13:34:58 +01006599#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006600 SSL_get0_next_proto_negotiated(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006601 if (*str)
6602 return 1;
6603#endif
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006604#endif
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006605 return 0;
6606}
6607
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006608/* "issuers-chain-path" load chain certificate in global */
William Lallemanddad31052020-05-14 17:47:32 +02006609int ssl_load_global_issuer_from_BIO(BIO *in, char *fp, char **err)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006610{
6611 X509 *ca;
6612 X509_NAME *name = NULL;
6613 ASN1_OCTET_STRING *skid = NULL;
6614 STACK_OF(X509) *chain = NULL;
6615 struct issuer_chain *issuer;
6616 struct eb64_node *node;
6617 char *path;
6618 u64 key;
6619 int ret = 0;
6620
6621 while ((ca = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
6622 if (chain == NULL) {
6623 chain = sk_X509_new_null();
6624 skid = X509_get_ext_d2i(ca, NID_subject_key_identifier, NULL, NULL);
6625 name = X509_get_subject_name(ca);
6626 }
6627 if (!sk_X509_push(chain, ca)) {
6628 X509_free(ca);
6629 goto end;
6630 }
6631 }
6632 if (!chain) {
6633 memprintf(err, "unable to load issuers-chain %s : pem certificate not found.\n", fp);
6634 goto end;
6635 }
6636 if (!skid) {
6637 memprintf(err, "unable to load issuers-chain %s : SubjectKeyIdentifier not found.\n", fp);
6638 goto end;
6639 }
6640 if (!name) {
6641 memprintf(err, "unable to load issuers-chain %s : SubjectName not found.\n", fp);
6642 goto end;
6643 }
Dragan Dosen967e7e72020-12-22 13:22:34 +01006644 key = XXH3(ASN1_STRING_get0_data(skid), ASN1_STRING_length(skid), 0);
William Lallemande0f3fd52020-02-25 14:53:06 +01006645 for (node = eb64_lookup(&cert_issuer_tree, key); node; node = eb64_next(node)) {
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006646 issuer = container_of(node, typeof(*issuer), node);
6647 if (!X509_NAME_cmp(name, X509_get_subject_name(sk_X509_value(issuer->chain, 0)))) {
6648 memprintf(err, "duplicate issuers-chain %s: %s already in store\n", fp, issuer->path);
6649 goto end;
6650 }
6651 }
6652 issuer = calloc(1, sizeof *issuer);
6653 path = strdup(fp);
6654 if (!issuer || !path) {
6655 free(issuer);
6656 free(path);
6657 goto end;
6658 }
6659 issuer->node.key = key;
6660 issuer->path = path;
6661 issuer->chain = chain;
6662 chain = NULL;
William Lallemande0f3fd52020-02-25 14:53:06 +01006663 eb64_insert(&cert_issuer_tree, &issuer->node);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006664 ret = 1;
6665 end:
6666 if (skid)
6667 ASN1_OCTET_STRING_free(skid);
6668 if (chain)
6669 sk_X509_pop_free(chain, X509_free);
6670 return ret;
6671}
6672
William Lallemandda8584c2020-05-14 10:14:37 +02006673 struct issuer_chain* ssl_get0_issuer_chain(X509 *cert)
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006674{
6675 AUTHORITY_KEYID *akid;
6676 struct issuer_chain *issuer = NULL;
6677
6678 akid = X509_get_ext_d2i(cert, NID_authority_key_identifier, NULL, NULL);
William Lallemandf69cd682020-11-19 16:24:13 +01006679 if (akid && akid->keyid) {
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006680 struct eb64_node *node;
6681 u64 hk;
Dragan Dosen967e7e72020-12-22 13:22:34 +01006682 hk = XXH3(ASN1_STRING_get0_data(akid->keyid), ASN1_STRING_length(akid->keyid), 0);
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006683 for (node = eb64_lookup(&cert_issuer_tree, hk); node; node = eb64_next(node)) {
6684 struct issuer_chain *ti = container_of(node, typeof(*issuer), node);
6685 if (X509_check_issued(sk_X509_value(ti->chain, 0), cert) == X509_V_OK) {
6686 issuer = ti;
6687 break;
6688 }
6689 }
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006690 }
Remi Tricot-Le Breton172da592022-11-03 15:16:48 +01006691 AUTHORITY_KEYID_free(akid);
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006692 return issuer;
6693}
6694
William Lallemanddad31052020-05-14 17:47:32 +02006695void ssl_free_global_issuers(void)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006696{
6697 struct eb64_node *node, *back;
6698 struct issuer_chain *issuer;
6699
William Lallemande0f3fd52020-02-25 14:53:06 +01006700 node = eb64_first(&cert_issuer_tree);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006701 while (node) {
6702 issuer = container_of(node, typeof(*issuer), node);
6703 back = eb64_next(node);
6704 eb64_delete(node);
6705 free(issuer->path);
6706 sk_X509_pop_free(issuer->chain, X509_free);
6707 free(issuer);
6708 node = back;
6709 }
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006710}
6711
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006712#ifndef OPENSSL_NO_ENGINE
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006713static int ssl_check_async_engine_count(void) {
Christopher Fauletfc633b62020-11-06 15:24:23 +01006714 int err_code = ERR_NONE;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006715
Emeric Brun3854e012017-05-17 20:42:48 +02006716 if (global_ssl.async && (openssl_engines_initialized > 32)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01006717 ha_alert("ssl-mode-async only supports a maximum of 32 engines.\n");
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006718 err_code = ERR_ABORT;
6719 }
6720 return err_code;
Willy Tarreau8c3b0fd2016-12-21 22:44:46 +01006721}
Willy Tarreau9ceda382016-12-21 23:13:03 +01006722#endif
6723
Willy Tarreaude5675a2021-01-20 14:41:29 +01006724/* "show fd" helper to dump ssl internals. Warning: the output buffer is often
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006725 * the common trash! It returns non-zero if the connection entry looks suspicious.
Willy Tarreaude5675a2021-01-20 14:41:29 +01006726 */
Willy Tarreau8050efe2021-01-21 08:26:06 +01006727static int ssl_sock_show_fd(struct buffer *buf, const struct connection *conn, const void *ctx)
Willy Tarreaude5675a2021-01-20 14:41:29 +01006728{
6729 const struct ssl_sock_ctx *sctx = ctx;
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006730 int ret = 0;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006731
6732 if (!sctx)
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006733 return ret;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006734
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006735 if (sctx->conn != conn) {
6736 chunk_appendf(&trash, " xctx.conn=%p(BOGUS)", sctx->conn);
6737 ret = 1;
6738 }
Willy Tarreaude5675a2021-01-20 14:41:29 +01006739 chunk_appendf(&trash, " xctx.st=%d", sctx->xprt_st);
6740
6741 if (sctx->xprt) {
6742 chunk_appendf(&trash, " .xprt=%s", sctx->xprt->name);
6743 if (sctx->xprt_ctx)
6744 chunk_appendf(&trash, " .xctx=%p", sctx->xprt_ctx);
6745 }
6746
6747 chunk_appendf(&trash, " .wait.ev=%d", sctx->wait_event.events);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006748
6749 /* as soon as a shutdown is reported the lower layer unregisters its
6750 * subscriber, so the situations below are transient and rare enough to
6751 * be reported as suspicious. In any case they shouldn't last.
6752 */
6753 if ((sctx->wait_event.events & 1) && (conn->flags & (CO_FL_SOCK_RD_SH|CO_FL_ERROR)))
6754 ret = 1;
6755 if ((sctx->wait_event.events & 2) && (conn->flags & (CO_FL_SOCK_WR_SH|CO_FL_ERROR)))
6756 ret = 1;
6757
Willy Tarreaude5675a2021-01-20 14:41:29 +01006758 chunk_appendf(&trash, " .subs=%p", sctx->subs);
6759 if (sctx->subs) {
6760 chunk_appendf(&trash, "(ev=%d tl=%p", sctx->subs->events, sctx->subs->tasklet);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006761 if (sctx->subs->tasklet->calls >= 1000000)
6762 ret = 1;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006763 chunk_appendf(&trash, " tl.calls=%d tl.ctx=%p tl.fct=",
6764 sctx->subs->tasklet->calls,
6765 sctx->subs->tasklet->context);
6766 resolve_sym_name(&trash, NULL, sctx->subs->tasklet->process);
6767 chunk_appendf(&trash, ")");
6768 }
6769 chunk_appendf(&trash, " .sent_early=%d", sctx->sent_early_data);
6770 chunk_appendf(&trash, " .early_in=%d", (int)sctx->early_buf.data);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006771 return ret;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006772}
6773
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006774#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
William Lallemand32af2032016-10-29 18:09:35 +02006775/* This function is used with TLS ticket keys management. It permits to browse
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006776 * each reference. The variable <ref> must point to the current node's list
6777 * element (which starts by the root), and <end> must point to the root node.
William Lallemand32af2032016-10-29 18:09:35 +02006778 */
William Lallemand32af2032016-10-29 18:09:35 +02006779static inline
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006780struct tls_keys_ref *tlskeys_list_get_next(struct list *ref, struct list *end)
William Lallemand32af2032016-10-29 18:09:35 +02006781{
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006782 /* Get next list entry. */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006783 ref = ref->n;
William Lallemand32af2032016-10-29 18:09:35 +02006784
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006785 /* If the entry is the last of the list, return NULL. */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006786 if (ref == end)
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006787 return NULL;
William Lallemand32af2032016-10-29 18:09:35 +02006788
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006789 return LIST_ELEM(ref, struct tls_keys_ref *, list);
William Lallemand32af2032016-10-29 18:09:35 +02006790}
6791
6792static inline
6793struct tls_keys_ref *tlskeys_ref_lookup_ref(const char *reference)
6794{
6795 int id;
6796 char *error;
6797
6798 /* If the reference starts by a '#', this is numeric id. */
6799 if (reference[0] == '#') {
6800 /* Try to convert the numeric id. If the conversion fails, the lookup fails. */
6801 id = strtol(reference + 1, &error, 10);
6802 if (*error != '\0')
6803 return NULL;
6804
6805 /* Perform the unique id lookup. */
6806 return tlskeys_ref_lookupid(id);
6807 }
6808
6809 /* Perform the string lookup. */
6810 return tlskeys_ref_lookup(reference);
6811}
6812#endif
6813
6814
6815#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6816
6817static int cli_io_handler_tlskeys_files(struct appctx *appctx);
6818
6819static inline int cli_io_handler_tlskeys_entries(struct appctx *appctx) {
6820 return cli_io_handler_tlskeys_files(appctx);
6821}
6822
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006823/* dumps all tls keys. Relies on cli.i0 (non-null = only list file names), cli.i1
6824 * (next index to be dumped), and cli.p0 (next key reference).
6825 */
William Lallemand32af2032016-10-29 18:09:35 +02006826static int cli_io_handler_tlskeys_files(struct appctx *appctx) {
6827
6828 struct stream_interface *si = appctx->owner;
6829
6830 switch (appctx->st2) {
6831 case STAT_ST_INIT:
6832 /* Display the column headers. If the message cannot be sent,
Joseph Herlant017b3da2018-11-15 09:07:59 -08006833 * quit the function with returning 0. The function is called
William Lallemand32af2032016-10-29 18:09:35 +02006834 * later and restart at the state "STAT_ST_INIT".
6835 */
6836 chunk_reset(&trash);
6837
6838 if (appctx->io_handler == cli_io_handler_tlskeys_entries)
6839 chunk_appendf(&trash, "# id secret\n");
6840 else
6841 chunk_appendf(&trash, "# id (file)\n");
6842
Willy Tarreau06d80a92017-10-19 14:32:15 +02006843 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01006844 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006845 return 0;
6846 }
6847
William Lallemand32af2032016-10-29 18:09:35 +02006848 /* Now, we start the browsing of the references lists.
6849 * Note that the following call to LIST_ELEM return bad pointer. The only
6850 * available field of this pointer is <list>. It is used with the function
6851 * tlskeys_list_get_next() for retruning the first available entry
6852 */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006853 if (appctx->ctx.cli.p0 == NULL)
6854 appctx->ctx.cli.p0 = tlskeys_list_get_next(&tlskeys_reference, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006855
6856 appctx->st2 = STAT_ST_LIST;
6857 /* fall through */
6858
6859 case STAT_ST_LIST:
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006860 while (appctx->ctx.cli.p0) {
6861 struct tls_keys_ref *ref = appctx->ctx.cli.p0;
William Lallemand32af2032016-10-29 18:09:35 +02006862
6863 chunk_reset(&trash);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006864 if (appctx->io_handler == cli_io_handler_tlskeys_entries && appctx->ctx.cli.i1 == 0)
William Lallemand32af2032016-10-29 18:09:35 +02006865 chunk_appendf(&trash, "# ");
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006866
6867 if (appctx->ctx.cli.i1 == 0)
6868 chunk_appendf(&trash, "%d (%s)\n", ref->unique_id, ref->filename);
6869
William Lallemand32af2032016-10-29 18:09:35 +02006870 if (appctx->io_handler == cli_io_handler_tlskeys_entries) {
Christopher Faulet16f45c82018-02-16 11:23:49 +01006871 int head;
6872
6873 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
6874 head = ref->tls_ticket_enc_index;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006875 while (appctx->ctx.cli.i1 < TLS_TICKETS_NO) {
Willy Tarreau83061a82018-07-13 11:56:34 +02006876 struct buffer *t2 = get_trash_chunk();
William Lallemand32af2032016-10-29 18:09:35 +02006877
6878 chunk_reset(t2);
6879 /* should never fail here because we dump only a key in the t2 buffer */
Emeric Brun9e754772019-01-10 17:51:55 +01006880 if (ref->key_size_bits == 128) {
6881 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6882 sizeof(struct tls_sess_key_128),
6883 t2->area, t2->size);
6884 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6885 t2->area);
6886 }
6887 else if (ref->key_size_bits == 256) {
6888 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6889 sizeof(struct tls_sess_key_256),
6890 t2->area, t2->size);
6891 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6892 t2->area);
6893 }
6894 else {
6895 /* This case should never happen */
6896 chunk_appendf(&trash, "%d.%d <unknown>\n", ref->unique_id, appctx->ctx.cli.i1);
6897 }
William Lallemand32af2032016-10-29 18:09:35 +02006898
Willy Tarreau06d80a92017-10-19 14:32:15 +02006899 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006900 /* let's try again later from this stream. We add ourselves into
6901 * this stream's users so that it can remove us upon termination.
6902 */
Christopher Faulet16f45c82018-02-16 11:23:49 +01006903 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreaudb398432018-11-15 11:08:52 +01006904 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006905 return 0;
6906 }
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006907 appctx->ctx.cli.i1++;
William Lallemand32af2032016-10-29 18:09:35 +02006908 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01006909 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006910 appctx->ctx.cli.i1 = 0;
William Lallemand32af2032016-10-29 18:09:35 +02006911 }
Willy Tarreau06d80a92017-10-19 14:32:15 +02006912 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006913 /* let's try again later from this stream. We add ourselves into
6914 * this stream's users so that it can remove us upon termination.
6915 */
Willy Tarreaudb398432018-11-15 11:08:52 +01006916 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006917 return 0;
6918 }
6919
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006920 if (appctx->ctx.cli.i0 == 0) /* don't display everything if not necessary */
William Lallemand32af2032016-10-29 18:09:35 +02006921 break;
6922
6923 /* get next list entry and check the end of the list */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006924 appctx->ctx.cli.p0 = tlskeys_list_get_next(&ref->list, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006925 }
6926
6927 appctx->st2 = STAT_ST_FIN;
6928 /* fall through */
6929
6930 default:
6931 appctx->st2 = STAT_ST_FIN;
6932 return 1;
6933 }
6934 return 0;
6935}
6936
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006937/* sets cli.i0 to non-zero if only file lists should be dumped */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006938static int cli_parse_show_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006939{
William Lallemand32af2032016-10-29 18:09:35 +02006940 /* no parameter, shows only file list */
6941 if (!*args[2]) {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006942 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006943 appctx->io_handler = cli_io_handler_tlskeys_files;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006944 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006945 }
6946
6947 if (args[2][0] == '*') {
6948 /* list every TLS ticket keys */
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006949 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006950 } else {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006951 appctx->ctx.cli.p0 = tlskeys_ref_lookup_ref(args[2]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006952 if (!appctx->ctx.cli.p0)
6953 return cli_err(appctx, "'show tls-keys' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006954 }
William Lallemand32af2032016-10-29 18:09:35 +02006955 appctx->io_handler = cli_io_handler_tlskeys_entries;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006956 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006957}
6958
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006959static int cli_parse_set_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006960{
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006961 struct tls_keys_ref *ref;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006962 int ret;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006963
William Lallemand32af2032016-10-29 18:09:35 +02006964 /* Expect two parameters: the filename and the new new TLS key in encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006965 if (!*args[3] || !*args[4])
6966 return cli_err(appctx, "'set ssl tls-key' expects a filename and the new TLS key in base64 encoding.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006967
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006968 ref = tlskeys_ref_lookup_ref(args[3]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006969 if (!ref)
6970 return cli_err(appctx, "'set ssl tls-key' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006971
Willy Tarreau1c913e42018-08-22 05:26:57 +02006972 ret = base64dec(args[4], strlen(args[4]), trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02006973 if (ret < 0)
6974 return cli_err(appctx, "'set ssl tls-key' received invalid base64 encoded TLS key.\n");
Emeric Brun9e754772019-01-10 17:51:55 +01006975
Willy Tarreau1c913e42018-08-22 05:26:57 +02006976 trash.data = ret;
Willy Tarreau9d008692019-08-09 11:21:01 +02006977 if (ssl_sock_update_tlskey_ref(ref, &trash) < 0)
6978 return cli_err(appctx, "'set ssl tls-key' received a key of wrong size.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006979
Willy Tarreau9d008692019-08-09 11:21:01 +02006980 return cli_msg(appctx, LOG_INFO, "TLS ticket key updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02006981}
William Lallemandd4f946c2019-12-05 10:26:40 +01006982#endif
William Lallemand419e6342020-04-08 12:05:39 +02006983
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006984static int cli_parse_set_ocspresponse(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006985{
6986#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
6987 char *err = NULL;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006988 int i, j, ret;
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006989
6990 if (!payload)
6991 payload = args[3];
William Lallemand32af2032016-10-29 18:09:35 +02006992
6993 /* Expect one parameter: the new response in base64 encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006994 if (!*payload)
6995 return cli_err(appctx, "'set ssl ocsp-response' expects response in base64 encoding.\n");
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006996
6997 /* remove \r and \n from the payload */
6998 for (i = 0, j = 0; payload[i]; i++) {
6999 if (payload[i] == '\r' || payload[i] == '\n')
7000 continue;
7001 payload[j++] = payload[i];
7002 }
7003 payload[j] = 0;
William Lallemand32af2032016-10-29 18:09:35 +02007004
Willy Tarreau1c913e42018-08-22 05:26:57 +02007005 ret = base64dec(payload, j, trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02007006 if (ret < 0)
7007 return cli_err(appctx, "'set ssl ocsp-response' received invalid base64 encoded response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02007008
Willy Tarreau1c913e42018-08-22 05:26:57 +02007009 trash.data = ret;
William Lallemand32af2032016-10-29 18:09:35 +02007010 if (ssl_sock_update_ocsp_response(&trash, &err)) {
Willy Tarreau9d008692019-08-09 11:21:01 +02007011 if (err)
7012 return cli_dynerr(appctx, memprintf(&err, "%s.\n", err));
7013 else
7014 return cli_err(appctx, "Failed to update OCSP response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02007015 }
Willy Tarreau9d008692019-08-09 11:21:01 +02007016
7017 return cli_msg(appctx, LOG_INFO, "OCSP Response updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02007018#else
Willy Tarreau9d008692019-08-09 11:21:01 +02007019 return cli_err(appctx, "HAProxy was compiled against a version of OpenSSL that doesn't support OCSP stapling.\n");
William Lallemand32af2032016-10-29 18:09:35 +02007020#endif
7021
Elliot Otchet71f82972020-01-15 08:12:14 -05007022}
7023
William Lallemand32af2032016-10-29 18:09:35 +02007024/* register cli keywords */
7025static struct cli_kw_list cli_kws = {{ },{
7026#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
Willy Tarreaub205bfd2021-05-07 11:38:37 +02007027 { { "show", "tls-keys", NULL }, "show tls-keys [id|*] : show tls keys references or dump tls ticket keys when id specified", cli_parse_show_tlskeys, NULL },
7028 { { "set", "ssl", "tls-key", NULL }, "set ssl tls-key [id|file] <key> : set the next TLS key for the <id> or <file> listener to <key>", cli_parse_set_tlskeys, NULL },
William Lallemand32af2032016-10-29 18:09:35 +02007029#endif
Willy Tarreaub205bfd2021-05-07 11:38:37 +02007030 { { "set", "ssl", "ocsp-response", NULL }, "set ssl ocsp-response <resp|payload> : update a certificate's OCSP Response from a base64-encode DER", cli_parse_set_ocspresponse, NULL },
William Lallemand32af2032016-10-29 18:09:35 +02007031 { { NULL }, NULL, NULL, NULL }
7032}};
7033
Willy Tarreau0108d902018-11-25 19:14:37 +01007034INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
William Lallemand32af2032016-10-29 18:09:35 +02007035
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02007036/* transport-layer operations for SSL sockets */
William Lallemanddad31052020-05-14 17:47:32 +02007037struct xprt_ops ssl_sock = {
Emeric Brun46591952012-05-18 15:47:34 +02007038 .snd_buf = ssl_sock_from_buf,
7039 .rcv_buf = ssl_sock_to_buf,
Olivier Houcharddf357842019-03-21 16:30:07 +01007040 .subscribe = ssl_subscribe,
7041 .unsubscribe = ssl_unsubscribe,
Olivier Houchard5149b592019-05-23 17:47:36 +02007042 .remove_xprt = ssl_remove_xprt,
Olivier Houchard2e055482019-05-27 19:50:12 +02007043 .add_xprt = ssl_add_xprt,
Emeric Brun46591952012-05-18 15:47:34 +02007044 .rcv_pipe = NULL,
7045 .snd_pipe = NULL,
7046 .shutr = NULL,
7047 .shutw = ssl_sock_shutw,
7048 .close = ssl_sock_close,
7049 .init = ssl_sock_init,
Olivier Houchardbc5ce922021-03-05 23:47:00 +01007050 .start = ssl_sock_start,
Willy Tarreau55d37912016-12-21 23:38:39 +01007051 .prepare_bind_conf = ssl_sock_prepare_bind_conf,
Willy Tarreau795cdab2016-12-22 17:30:54 +01007052 .destroy_bind_conf = ssl_sock_destroy_bind_conf,
Willy Tarreau17d45382016-12-22 21:16:08 +01007053 .prepare_srv = ssl_sock_prepare_srv_ctx,
7054 .destroy_srv = ssl_sock_free_srv_ctx,
Willy Tarreau8743f7e2016-12-04 18:44:29 +01007055 .get_alpn = ssl_sock_get_alpn,
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02007056 .takeover = ssl_takeover,
Willy Tarreau41491682021-03-02 17:29:56 +01007057 .set_idle = ssl_set_idle,
7058 .set_used = ssl_set_used,
Willy Tarreau8e0bb0a2016-11-24 16:58:12 +01007059 .name = "SSL",
Willy Tarreaude5675a2021-01-20 14:41:29 +01007060 .show_fd = ssl_sock_show_fd,
Emeric Brun46591952012-05-18 15:47:34 +02007061};
7062
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007063enum act_return ssl_action_wait_for_hs(struct act_rule *rule, struct proxy *px,
7064 struct session *sess, struct stream *s, int flags)
7065{
7066 struct connection *conn;
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007067 struct conn_stream *cs;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007068
7069 conn = objt_conn(sess->origin);
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007070 cs = objt_cs(s->si[0].end);
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007071
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007072 if (conn && cs) {
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007073 if (conn->flags & (CO_FL_EARLY_SSL_HS | CO_FL_SSL_WAIT_HS)) {
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007074 cs->flags |= CS_FL_WAIT_FOR_HS;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007075 s->req.flags |= CF_READ_NULL;
7076 return ACT_RET_YIELD;
7077 }
7078 }
7079 return (ACT_RET_CONT);
7080}
7081
7082static enum act_parse_ret ssl_parse_wait_for_hs(const char **args, int *orig_arg, struct proxy *px, struct act_rule *rule, char **err)
7083{
7084 rule->action_ptr = ssl_action_wait_for_hs;
7085
7086 return ACT_RET_PRS_OK;
7087}
7088
7089static struct action_kw_list http_req_actions = {ILH, {
7090 { "wait-for-handshake", ssl_parse_wait_for_hs },
7091 { /* END */ }
7092}};
7093
Willy Tarreau0108d902018-11-25 19:14:37 +01007094INITCALL1(STG_REGISTER, http_req_keywords_register, &http_req_actions);
7095
Ilya Shipitsinf00cdb12021-02-06 18:59:22 +05007096#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01007097
7098static void ssl_sock_sctl_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7099{
7100 if (ptr) {
7101 chunk_destroy(ptr);
7102 free(ptr);
7103 }
7104}
7105
7106#endif
William Lallemand76b4a122020-08-04 17:41:39 +02007107
7108#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
7109static void ssl_sock_ocsp_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7110{
7111 struct ocsp_cbk_arg *ocsp_arg;
7112
7113 if (ptr) {
7114 ocsp_arg = ptr;
7115
7116 if (ocsp_arg->is_single) {
7117 ssl_sock_free_ocsp(ocsp_arg->s_ocsp);
7118 ocsp_arg->s_ocsp = NULL;
7119 } else {
7120 int i;
7121
7122 for (i = 0; i < SSL_SOCK_NUM_KEYTYPES; i++) {
7123 ssl_sock_free_ocsp(ocsp_arg->m_ocsp[i]);
7124 ocsp_arg->m_ocsp[i] = NULL;
7125 }
7126 }
7127 free(ocsp_arg);
7128 }
7129}
7130#endif
7131
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01007132static void ssl_sock_capture_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7133{
Willy Tarreaubafbe012017-11-24 17:34:44 +01007134 pool_free(pool_head_ssl_capture, ptr);
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01007135}
William Lallemand7d42ef52020-07-06 11:41:30 +02007136
William Lallemandca5cf0a2021-06-09 16:46:12 +02007137#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02007138static void ssl_sock_keylog_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7139{
7140 struct ssl_keylog *keylog;
7141
7142 if (!ptr)
7143 return;
7144
7145 keylog = ptr;
7146
7147 pool_free(pool_head_ssl_keylog_str, keylog->client_random);
7148 pool_free(pool_head_ssl_keylog_str, keylog->client_early_traffic_secret);
7149 pool_free(pool_head_ssl_keylog_str, keylog->client_handshake_traffic_secret);
7150 pool_free(pool_head_ssl_keylog_str, keylog->server_handshake_traffic_secret);
7151 pool_free(pool_head_ssl_keylog_str, keylog->client_traffic_secret_0);
7152 pool_free(pool_head_ssl_keylog_str, keylog->server_traffic_secret_0);
7153 pool_free(pool_head_ssl_keylog_str, keylog->exporter_secret);
7154 pool_free(pool_head_ssl_keylog_str, keylog->early_exporter_secret);
7155
7156 pool_free(pool_head_ssl_keylog, ptr);
7157}
7158#endif
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01007159
Emeric Brun46591952012-05-18 15:47:34 +02007160__attribute__((constructor))
Willy Tarreau92faadf2012-10-10 23:04:25 +02007161static void __ssl_sock_init(void)
7162{
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007163#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02007164 STACK_OF(SSL_COMP)* cm;
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05007165 int n;
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007166#endif
Emeric Brun46591952012-05-18 15:47:34 +02007167
Willy Tarreauef934602016-12-22 23:12:01 +01007168 if (global_ssl.listen_default_ciphers)
7169 global_ssl.listen_default_ciphers = strdup(global_ssl.listen_default_ciphers);
7170 if (global_ssl.connect_default_ciphers)
7171 global_ssl.connect_default_ciphers = strdup(global_ssl.connect_default_ciphers);
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05007172#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02007173 if (global_ssl.listen_default_ciphersuites)
7174 global_ssl.listen_default_ciphersuites = strdup(global_ssl.listen_default_ciphersuites);
7175 if (global_ssl.connect_default_ciphersuites)
7176 global_ssl.connect_default_ciphersuites = strdup(global_ssl.connect_default_ciphersuites);
7177#endif
Willy Tarreau610f04b2014-02-13 11:36:41 +01007178
Willy Tarreau13e14102016-12-22 20:25:26 +01007179 xprt_register(XPRT_SSL, &ssl_sock);
Willy Tarreau9a1ab082019-05-09 13:26:41 +02007180#if HA_OPENSSL_VERSION_NUMBER < 0x10100000L
Emeric Brun46591952012-05-18 15:47:34 +02007181 SSL_library_init();
Rosen Penev68185952018-12-14 08:47:02 -08007182#endif
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007183#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02007184 cm = SSL_COMP_get_compression_methods();
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05007185 n = sk_SSL_COMP_num(cm);
7186 while (n--) {
7187 (void) sk_SSL_COMP_pop(cm);
7188 }
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007189#endif
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05007190
Willy Tarreau5db847a2019-05-09 14:13:35 +02007191#if defined(USE_THREAD) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Emeric Brun821bb9b2017-06-15 16:37:39 +02007192 ssl_locking_init();
7193#endif
Ilya Shipitsinf00cdb12021-02-06 18:59:22 +05007194#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01007195 sctl_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_sctl_free_func);
7196#endif
William Lallemand76b4a122020-08-04 17:41:39 +02007197
7198#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
7199 ocsp_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_ocsp_free_func);
7200#endif
7201
Thierry FOURNIER28962c92018-06-17 21:37:05 +02007202 ssl_app_data_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
Thierry FOURNIER16ff0502018-06-17 21:33:01 +02007203 ssl_capture_ptr_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_capture_free_func);
William Lallemandca5cf0a2021-06-09 16:46:12 +02007204#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02007205 ssl_keylog_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_keylog_free_func);
7206#endif
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007207#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00007208 ENGINE_load_builtin_engines();
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00007209 hap_register_post_check(ssl_check_async_engine_count);
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007210#endif
Willy Tarreaud1c57502016-12-22 22:46:15 +01007211#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
7212 hap_register_post_check(tlskeys_finalize_config);
7213#endif
Willy Tarreau80713382018-11-26 10:19:54 +01007214
7215 global.ssl_session_max_cost = SSL_SESSION_MAX_COST;
7216 global.ssl_handshake_max_cost = SSL_HANDSHAKE_MAX_COST;
7217
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01007218 hap_register_post_deinit(ssl_free_global_issuers);
7219
Willy Tarreau80713382018-11-26 10:19:54 +01007220#ifndef OPENSSL_NO_DH
7221 ssl_dh_ptr_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
7222 hap_register_post_deinit(ssl_free_dh);
7223#endif
7224#ifndef OPENSSL_NO_ENGINE
7225 hap_register_post_deinit(ssl_free_engines);
7226#endif
7227 /* Load SSL string for the verbose & debug mode. */
7228 ERR_load_SSL_strings();
Olivier Houcharda8955d52019-04-07 22:00:38 +02007229 ha_meth = BIO_meth_new(0x666, "ha methods");
7230 BIO_meth_set_write(ha_meth, ha_ssl_write);
7231 BIO_meth_set_read(ha_meth, ha_ssl_read);
7232 BIO_meth_set_ctrl(ha_meth, ha_ssl_ctrl);
7233 BIO_meth_set_create(ha_meth, ha_ssl_new);
7234 BIO_meth_set_destroy(ha_meth, ha_ssl_free);
7235 BIO_meth_set_puts(ha_meth, ha_ssl_puts);
7236 BIO_meth_set_gets(ha_meth, ha_ssl_gets);
William Lallemand150bfa82019-09-19 17:12:49 +02007237
7238 HA_SPIN_INIT(&ckch_lock);
Dragan Dosen1e7ed042020-05-08 18:30:00 +02007239
Dragan Dosen9ac98092020-05-11 15:51:45 +02007240 /* Try to register dedicated SSL/TLS protocol message callbacks for
7241 * heartbleed attack (CVE-2014-0160) and clienthello.
7242 */
7243 hap_register_post_check(ssl_sock_register_msg_callbacks);
7244
Dragan Dosen1e7ed042020-05-08 18:30:00 +02007245 /* Try to free all callbacks that were registered by using
7246 * ssl_sock_register_msg_callback().
7247 */
7248 hap_register_post_deinit(ssl_sock_unregister_msg_callbacks);
Willy Tarreau80713382018-11-26 10:19:54 +01007249}
Willy Tarreaud92aa5c2015-01-15 21:34:39 +01007250
Willy Tarreau80713382018-11-26 10:19:54 +01007251/* Compute and register the version string */
7252static void ssl_register_build_options()
7253{
7254 char *ptr = NULL;
7255 int i;
7256
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007257 memprintf(&ptr, "Built with OpenSSL version : "
7258#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01007259 "BoringSSL");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007260#else /* OPENSSL_IS_BORINGSSL */
7261 OPENSSL_VERSION_TEXT
7262 "\nRunning on OpenSSL version : %s%s",
Rosen Penev68185952018-12-14 08:47:02 -08007263 OpenSSL_version(OPENSSL_VERSION),
Willy Tarreau1d158ab2019-05-09 13:41:45 +02007264 ((OPENSSL_VERSION_NUMBER ^ OpenSSL_version_num()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007265#endif
7266 memprintf(&ptr, "%s\nOpenSSL library supports TLS extensions : "
Willy Tarreau9a1ab082019-05-09 13:26:41 +02007267#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007268 "no (library version too old)"
7269#elif defined(OPENSSL_NO_TLSEXT)
7270 "no (disabled via OPENSSL_NO_TLSEXT)"
7271#else
7272 "yes"
7273#endif
7274 "", ptr);
7275
7276 memprintf(&ptr, "%s\nOpenSSL library supports SNI : "
7277#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
7278 "yes"
7279#else
7280#ifdef OPENSSL_NO_TLSEXT
7281 "no (because of OPENSSL_NO_TLSEXT)"
7282#else
7283 "no (version might be too old, 0.9.8f min needed)"
7284#endif
7285#endif
7286 "", ptr);
7287
Emmanuel Hocdetf80bc242017-07-12 14:25:38 +02007288 memprintf(&ptr, "%s\nOpenSSL library supports :", ptr);
7289 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
7290 if (methodVersions[i].option)
7291 memprintf(&ptr, "%s %s", ptr, methodVersions[i].name);
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01007292
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007293 hap_register_build_opts(ptr, 1);
Willy Tarreau80713382018-11-26 10:19:54 +01007294}
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007295
Willy Tarreau80713382018-11-26 10:19:54 +01007296INITCALL0(STG_REGISTER, ssl_register_build_options);
Remi Gacogne4f902b82015-05-28 16:23:00 +02007297
Emeric Brun46591952012-05-18 15:47:34 +02007298
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007299#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00007300void ssl_free_engines(void) {
7301 struct ssl_engine_list *wl, *wlb;
7302 /* free up engine list */
7303 list_for_each_entry_safe(wl, wlb, &openssl_engines, list) {
7304 ENGINE_finish(wl->e);
7305 ENGINE_free(wl->e);
Willy Tarreau2b718102021-04-21 07:32:39 +02007306 LIST_DELETE(&wl->list);
Grant Zhang872f9c22017-01-21 01:10:18 +00007307 free(wl);
7308 }
7309}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007310#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +02007311
Remi Gacogned3a23c32015-05-28 16:39:47 +02007312#ifndef OPENSSL_NO_DH
Grant Zhang872f9c22017-01-21 01:10:18 +00007313void ssl_free_dh(void) {
7314 if (local_dh_1024) {
7315 DH_free(local_dh_1024);
7316 local_dh_1024 = NULL;
7317 }
7318 if (local_dh_2048) {
7319 DH_free(local_dh_2048);
7320 local_dh_2048 = NULL;
7321 }
7322 if (local_dh_4096) {
7323 DH_free(local_dh_4096);
7324 local_dh_4096 = NULL;
7325 }
Remi Gacogne47783ef2015-05-29 15:53:22 +02007326 if (global_dh) {
7327 DH_free(global_dh);
7328 global_dh = NULL;
7329 }
Grant Zhang872f9c22017-01-21 01:10:18 +00007330}
7331#endif
7332
7333__attribute__((destructor))
7334static void __ssl_sock_deinit(void)
7335{
7336#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02007337 if (ssl_ctx_lru_tree) {
7338 lru64_destroy(ssl_ctx_lru_tree);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01007339 HA_RWLOCK_DESTROY(&ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +02007340 }
Remi Gacogned3a23c32015-05-28 16:39:47 +02007341#endif
7342
Willy Tarreau5db847a2019-05-09 14:13:35 +02007343#if (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02007344 ERR_remove_state(0);
7345 ERR_free_strings();
7346
7347 EVP_cleanup();
Rosen Penev68185952018-12-14 08:47:02 -08007348#endif
Remi Gacogned3a23c32015-05-28 16:39:47 +02007349
Willy Tarreau5db847a2019-05-09 14:13:35 +02007350#if (HA_OPENSSL_VERSION_NUMBER >= 0x00907000L) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02007351 CRYPTO_cleanup_all_ex_data();
7352#endif
Olivier Houcharda8955d52019-04-07 22:00:38 +02007353 BIO_meth_free(ha_meth);
Remi Gacogned3a23c32015-05-28 16:39:47 +02007354}
7355
William Dauchyf6370442020-11-14 19:25:33 +01007356/* Activate ssl on server <s>.
7357 * do nothing if there is no change to apply
7358 *
7359 * Must be called with the server lock held.
7360 */
7361void ssl_sock_set_srv(struct server *s, signed char use_ssl)
7362{
7363 if (s->use_ssl == use_ssl)
7364 return;
7365
7366 s->use_ssl = use_ssl;
7367 if (s->use_ssl == 1)
7368 s->xprt = &ssl_sock;
7369 else
William Dauchyf5186442022-01-06 16:57:15 +01007370 s->xprt = xprt_get(XPRT_RAW);
William Dauchyf6370442020-11-14 19:25:33 +01007371}
7372
Emeric Brun46591952012-05-18 15:47:34 +02007373/*
7374 * Local variables:
7375 * c-indent-level: 8
7376 * c-basic-offset: 8
7377 * End:
7378 */