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yanbzhu08ce6ab2015-12-02 13:01:29 -05001
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>
Amaury Denoyelle9963fa72020-11-03 17:10:00 +010073#include <haproxy/stats.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020074#include <haproxy/stream-t.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020075#include <haproxy/stream_interface.h>
Willy Tarreaucea0e1b2020-06-04 17:25:40 +020076#include <haproxy/task.h>
Willy Tarreauc2f7c582020-06-02 18:15:32 +020077#include <haproxy/ticks.h>
Willy Tarreau92b4f132020-06-01 11:05:15 +020078#include <haproxy/time.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020079#include <haproxy/tools.h>
Willy Tarreaua1718922020-06-04 16:25:31 +020080#include <haproxy/vars.h>
Frédéric Lécailleec216522020-11-23 14:33:30 +010081#include <haproxy/xprt_quic.h>
Emeric Brun46591952012-05-18 15:47:34 +020082
Emeric Brun46591952012-05-18 15:47:34 +020083
Willy Tarreau9356dac2019-05-10 09:22:53 +020084/* ***** READ THIS before adding code here! *****
85 *
86 * Due to API incompatibilities between multiple OpenSSL versions and their
87 * derivatives, it's often tempting to add macros to (re-)define certain
88 * symbols. Please do not do this here, and do it in common/openssl-compat.h
89 * exclusively so that the whole code consistently uses the same macros.
90 *
91 * Whenever possible if a macro is missing in certain versions, it's better
92 * to conditionally define it in openssl-compat.h than using lots of ifdefs.
93 */
94
Willy Tarreau71b734c2014-01-28 15:19:44 +010095int sslconns = 0;
96int totalsslconns = 0;
Emeric Brunece0c332017-12-06 13:51:49 +010097int nb_engines = 0;
Emeric Brune1f38db2012-09-03 20:36:47 +020098
William Lallemande0f3fd52020-02-25 14:53:06 +010099static struct eb_root cert_issuer_tree = EB_ROOT; /* issuers tree from "issuers-chain-path" */
100
William Lallemand7fd8b452020-05-07 15:20:43 +0200101struct global_ssl global_ssl = {
Willy Tarreauef934602016-12-22 23:12:01 +0100102#ifdef LISTEN_DEFAULT_CIPHERS
103 .listen_default_ciphers = LISTEN_DEFAULT_CIPHERS,
104#endif
105#ifdef CONNECT_DEFAULT_CIPHERS
106 .connect_default_ciphers = CONNECT_DEFAULT_CIPHERS,
107#endif
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +0500108#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +0200109 .listen_default_ciphersuites = LISTEN_DEFAULT_CIPHERSUITES,
Dirkjan Bussink415150f2018-09-14 11:14:21 +0200110 .connect_default_ciphersuites = CONNECT_DEFAULT_CIPHERSUITES,
111#endif
Willy Tarreauef934602016-12-22 23:12:01 +0100112 .listen_default_ssloptions = BC_SSL_O_NONE,
113 .connect_default_ssloptions = SRV_SSL_O_NONE,
114
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +0200115 .listen_default_sslmethods.flags = MC_SSL_O_ALL,
116 .listen_default_sslmethods.min = CONF_TLSV_NONE,
117 .listen_default_sslmethods.max = CONF_TLSV_NONE,
118 .connect_default_sslmethods.flags = MC_SSL_O_ALL,
119 .connect_default_sslmethods.min = CONF_TLSV_NONE,
120 .connect_default_sslmethods.max = CONF_TLSV_NONE,
121
Willy Tarreauef934602016-12-22 23:12:01 +0100122#ifdef DEFAULT_SSL_MAX_RECORD
123 .max_record = DEFAULT_SSL_MAX_RECORD,
124#endif
125 .default_dh_param = SSL_DEFAULT_DH_PARAM,
126 .ctx_cache = DEFAULT_SSL_CTX_CACHE,
Thierry FOURNIER5bf77322017-02-25 12:45:22 +0100127 .capture_cipherlist = 0,
William Lallemand3af48e72020-02-03 17:15:52 +0100128 .extra_files = SSL_GF_ALL,
William Lallemand8e8581e2020-10-20 17:36:46 +0200129 .extra_files_noext = 0,
William Lallemandca5cf0a2021-06-09 16:46:12 +0200130#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200131 .keylog = 0
132#endif
Willy Tarreauef934602016-12-22 23:12:01 +0100133};
134
Olivier Houcharda8955d52019-04-07 22:00:38 +0200135static BIO_METHOD *ha_meth;
136
Olivier Houchard66ab4982019-02-26 18:37:15 +0100137DECLARE_STATIC_POOL(ssl_sock_ctx_pool, "ssl_sock_ctx_pool", sizeof(struct ssl_sock_ctx));
138
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100139/* ssl stats module */
140enum {
Amaury Denoyelled0447a72020-11-03 17:10:02 +0100141 SSL_ST_SESS,
142 SSL_ST_REUSED_SESS,
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100143 SSL_ST_FAILED_HANDSHAKE,
Amaury Denoyellefbc33772020-11-03 17:10:01 +0100144
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100145 SSL_ST_STATS_COUNT /* must be the last member of the enum */
146};
147
148static struct name_desc ssl_stats[] = {
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100149 [SSL_ST_SESS] = { .name = "ssl_sess",
150 .desc = "Total number of ssl sessions established" },
151 [SSL_ST_REUSED_SESS] = { .name = "ssl_reused_sess",
152 .desc = "Total number of ssl sessions reused" },
153 [SSL_ST_FAILED_HANDSHAKE] = { .name = "ssl_failed_handshake",
154 .desc = "Total number of failed handshake" },
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100155};
156
157static struct ssl_counters {
Amaury Denoyelled0447a72020-11-03 17:10:02 +0100158 long long sess;
159 long long reused_sess;
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100160 long long failed_handshake;
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100161} ssl_counters;
162
163static void ssl_fill_stats(void *data, struct field *stats)
164{
Amaury Denoyellefbc33772020-11-03 17:10:01 +0100165 struct ssl_counters *counters = data;
166
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100167 stats[SSL_ST_SESS] = mkf_u64(FN_COUNTER, counters->sess);
168 stats[SSL_ST_REUSED_SESS] = mkf_u64(FN_COUNTER, counters->reused_sess);
169 stats[SSL_ST_FAILED_HANDSHAKE] = mkf_u64(FN_COUNTER, counters->failed_handshake);
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100170}
171
172static struct stats_module ssl_stats_module = {
173 .name = "ssl",
174 .fill_stats = ssl_fill_stats,
175 .stats = ssl_stats,
176 .stats_count = SSL_ST_STATS_COUNT,
177 .counters = &ssl_counters,
178 .counters_size = sizeof(ssl_counters),
179 .domain_flags = MK_STATS_PROXY_DOMAIN(STATS_PX_CAP_FE|STATS_PX_CAP_LI|STATS_PX_CAP_BE|STATS_PX_CAP_SRV),
180 .clearable = 1,
181};
182
183INITCALL1(STG_REGISTER, stats_register_module, &ssl_stats_module);
184
Willy Tarreau691d5032021-01-20 14:55:01 +0100185/* ssl_sock_io_cb is exported to see it resolved in "show fd" */
Willy Tarreau144f84a2021-03-02 16:09:26 +0100186struct task *ssl_sock_io_cb(struct task *, void *, unsigned int);
Olivier Houchard000694c2019-05-23 14:45:12 +0200187static int ssl_sock_handshake(struct connection *conn, unsigned int flag);
Olivier Houchardea8dd942019-05-20 14:02:16 +0200188
Olivier Houcharda8955d52019-04-07 22:00:38 +0200189/* Methods to implement OpenSSL BIO */
190static int ha_ssl_write(BIO *h, const char *buf, int num)
191{
192 struct buffer tmpbuf;
193 struct ssl_sock_ctx *ctx;
194 int ret;
195
196 ctx = BIO_get_data(h);
197 tmpbuf.size = num;
198 tmpbuf.area = (void *)(uintptr_t)buf;
199 tmpbuf.data = num;
200 tmpbuf.head = 0;
201 ret = ctx->xprt->snd_buf(ctx->conn, ctx->xprt_ctx, &tmpbuf, num, 0);
Olivier Houchardb51937e2019-05-01 17:24:36 +0200202 if (ret == 0 && !(ctx->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houcharda8955d52019-04-07 22:00:38 +0200203 BIO_set_retry_write(h);
Olivier Houcharda28454e2019-04-24 12:04:36 +0200204 ret = -1;
Olivier Houchardb51937e2019-05-01 17:24:36 +0200205 } else if (ret == 0)
206 BIO_clear_retry_flags(h);
Olivier Houcharda8955d52019-04-07 22:00:38 +0200207 return ret;
208}
209
210static int ha_ssl_gets(BIO *h, char *buf, int size)
211{
212
213 return 0;
214}
215
216static int ha_ssl_puts(BIO *h, const char *str)
217{
218
219 return ha_ssl_write(h, str, strlen(str));
220}
221
222static int ha_ssl_read(BIO *h, char *buf, int size)
223{
224 struct buffer tmpbuf;
225 struct ssl_sock_ctx *ctx;
226 int ret;
227
228 ctx = BIO_get_data(h);
229 tmpbuf.size = size;
230 tmpbuf.area = buf;
231 tmpbuf.data = 0;
232 tmpbuf.head = 0;
233 ret = ctx->xprt->rcv_buf(ctx->conn, ctx->xprt_ctx, &tmpbuf, size, 0);
Olivier Houchardb51937e2019-05-01 17:24:36 +0200234 if (ret == 0 && !(ctx->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH))) {
Olivier Houcharda8955d52019-04-07 22:00:38 +0200235 BIO_set_retry_read(h);
Olivier Houcharda28454e2019-04-24 12:04:36 +0200236 ret = -1;
Olivier Houchardb51937e2019-05-01 17:24:36 +0200237 } else if (ret == 0)
238 BIO_clear_retry_flags(h);
Olivier Houcharda8955d52019-04-07 22:00:38 +0200239
240 return ret;
241}
242
243static long ha_ssl_ctrl(BIO *h, int cmd, long arg1, void *arg2)
244{
245 int ret = 0;
246 switch (cmd) {
247 case BIO_CTRL_DUP:
248 case BIO_CTRL_FLUSH:
249 ret = 1;
250 break;
251 }
252 return ret;
253}
254
255static int ha_ssl_new(BIO *h)
256{
257 BIO_set_init(h, 1);
258 BIO_set_data(h, NULL);
259 BIO_clear_flags(h, ~0);
260 return 1;
261}
262
263static int ha_ssl_free(BIO *data)
264{
265
266 return 1;
267}
268
269
Willy Tarreau5db847a2019-05-09 14:13:35 +0200270#if defined(USE_THREAD) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Christopher Faulet9dcf9b62017-11-13 10:34:01 +0100271
Emeric Brun821bb9b2017-06-15 16:37:39 +0200272static HA_RWLOCK_T *ssl_rwlocks;
273
274
275unsigned long ssl_id_function(void)
276{
277 return (unsigned long)tid;
278}
279
280void ssl_locking_function(int mode, int n, const char * file, int line)
281{
282 if (mode & CRYPTO_LOCK) {
283 if (mode & CRYPTO_READ)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100284 HA_RWLOCK_RDLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200285 else
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100286 HA_RWLOCK_WRLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200287 }
288 else {
289 if (mode & CRYPTO_READ)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100290 HA_RWLOCK_RDUNLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200291 else
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100292 HA_RWLOCK_WRUNLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200293 }
294}
295
296static int ssl_locking_init(void)
297{
298 int i;
299
300 ssl_rwlocks = malloc(sizeof(HA_RWLOCK_T)*CRYPTO_num_locks());
301 if (!ssl_rwlocks)
302 return -1;
303
304 for (i = 0 ; i < CRYPTO_num_locks() ; i++)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100305 HA_RWLOCK_INIT(&ssl_rwlocks[i]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200306
307 CRYPTO_set_id_callback(ssl_id_function);
308 CRYPTO_set_locking_callback(ssl_locking_function);
309
310 return 0;
311}
Christopher Faulet9dcf9b62017-11-13 10:34:01 +0100312
Emeric Brun821bb9b2017-06-15 16:37:39 +0200313#endif
314
Willy Tarreauaf613e82020-06-05 08:40:51 +0200315__decl_thread(HA_SPINLOCK_T ckch_lock);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200316
William Lallemandbc6ca7c2019-10-29 23:48:19 +0100317
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200318/*
Emmanuel Hocdetb270e812019-11-21 19:09:31 +0100319 * deduplicate cafile (and crlfile)
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200320 */
321struct cafile_entry {
322 X509_STORE *ca_store;
Emmanuel Hocdet129d3282019-10-24 18:08:51 +0200323 STACK_OF(X509_NAME) *ca_list;
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200324 struct ebmb_node node;
325 char path[0];
326};
327
328static struct eb_root cafile_tree = EB_ROOT_UNIQUE;
329
330static X509_STORE* ssl_store_get0_locations_file(char *path)
331{
332 struct ebmb_node *eb;
333
334 eb = ebst_lookup(&cafile_tree, path);
335 if (eb) {
336 struct cafile_entry *ca_e;
337 ca_e = ebmb_entry(eb, struct cafile_entry, node);
338 return ca_e->ca_store;
339 }
340 return NULL;
341}
342
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100343int ssl_store_load_locations_file(char *path, int create_if_none)
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200344{
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100345 X509_STORE *store = ssl_store_get0_locations_file(path);
346
347 /* If this function is called by the CLI, we should not call the
348 * X509_STORE_load_locations function because it performs forbidden disk
349 * accesses. */
350 if (!store && create_if_none) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200351 struct cafile_entry *ca_e;
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100352 store = X509_STORE_new();
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200353 if (X509_STORE_load_locations(store, path, NULL)) {
354 int pathlen;
355 pathlen = strlen(path);
356 ca_e = calloc(1, sizeof(*ca_e) + pathlen + 1);
357 if (ca_e) {
358 memcpy(ca_e->path, path, pathlen + 1);
359 ca_e->ca_store = store;
360 ebst_insert(&cafile_tree, &ca_e->node);
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200361 }
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100362 } else {
363 X509_STORE_free(store);
364 store = NULL;
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200365 }
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200366 }
Remi Tricot-Le Bretonfb00f312021-03-23 16:41:53 +0100367 return (store != NULL);
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200368}
369
370/* mimic what X509_STORE_load_locations do with store_ctx */
371static int ssl_set_cert_crl_file(X509_STORE *store_ctx, char *path)
372{
373 X509_STORE *store;
374 store = ssl_store_get0_locations_file(path);
375 if (store_ctx && store) {
376 int i;
377 X509_OBJECT *obj;
378 STACK_OF(X509_OBJECT) *objs = X509_STORE_get0_objects(store);
379 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
380 obj = sk_X509_OBJECT_value(objs, i);
381 switch (X509_OBJECT_get_type(obj)) {
382 case X509_LU_X509:
383 X509_STORE_add_cert(store_ctx, X509_OBJECT_get0_X509(obj));
384 break;
385 case X509_LU_CRL:
386 X509_STORE_add_crl(store_ctx, X509_OBJECT_get0_X509_CRL(obj));
387 break;
388 default:
389 break;
390 }
391 }
392 return 1;
393 }
394 return 0;
395}
396
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +0500397/* SSL_CTX_load_verify_locations substitute, internally call X509_STORE_load_locations */
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200398static int ssl_set_verify_locations_file(SSL_CTX *ctx, char *path)
399{
400 X509_STORE *store_ctx = SSL_CTX_get_cert_store(ctx);
401 return ssl_set_cert_crl_file(store_ctx, path);
402}
403
Emmanuel Hocdet129d3282019-10-24 18:08:51 +0200404/*
405 Extract CA_list from CA_file already in tree.
406 Duplicate ca_name is tracking with ebtree. It's simplify openssl compatibility.
407 Return a shared ca_list: SSL_dup_CA_list must be used before set it on SSL_CTX.
408*/
409static STACK_OF(X509_NAME)* ssl_get_client_ca_file(char *path)
410{
411 struct ebmb_node *eb;
412 struct cafile_entry *ca_e;
413
414 eb = ebst_lookup(&cafile_tree, path);
415 if (!eb)
416 return NULL;
417 ca_e = ebmb_entry(eb, struct cafile_entry, node);
418
419 if (ca_e->ca_list == NULL) {
420 int i;
421 unsigned long key;
422 struct eb_root ca_name_tree = EB_ROOT;
423 struct eb64_node *node, *back;
424 struct {
425 struct eb64_node node;
426 X509_NAME *xname;
427 } *ca_name;
428 STACK_OF(X509_OBJECT) *objs;
429 STACK_OF(X509_NAME) *skn;
430 X509 *x;
431 X509_NAME *xn;
432
433 skn = sk_X509_NAME_new_null();
434 /* take x509 from cafile_tree */
435 objs = X509_STORE_get0_objects(ca_e->ca_store);
436 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
437 x = X509_OBJECT_get0_X509(sk_X509_OBJECT_value(objs, i));
438 if (!x)
439 continue;
440 xn = X509_get_subject_name(x);
441 if (!xn)
442 continue;
443 /* Check for duplicates. */
444 key = X509_NAME_hash(xn);
445 for (node = eb64_lookup(&ca_name_tree, key), ca_name = NULL;
446 node && ca_name == NULL;
447 node = eb64_next(node)) {
448 ca_name = container_of(node, typeof(*ca_name), node);
449 if (X509_NAME_cmp(xn, ca_name->xname) != 0)
450 ca_name = NULL;
451 }
452 /* find a duplicate */
453 if (ca_name)
454 continue;
455 ca_name = calloc(1, sizeof *ca_name);
456 xn = X509_NAME_dup(xn);
457 if (!ca_name ||
458 !xn ||
459 !sk_X509_NAME_push(skn, xn)) {
460 free(ca_name);
461 X509_NAME_free(xn);
462 sk_X509_NAME_pop_free(skn, X509_NAME_free);
463 sk_X509_NAME_free(skn);
464 skn = NULL;
465 break;
466 }
467 ca_name->node.key = key;
468 ca_name->xname = xn;
469 eb64_insert(&ca_name_tree, &ca_name->node);
470 }
471 ca_e->ca_list = skn;
472 /* remove temporary ca_name tree */
473 node = eb64_first(&ca_name_tree);
474 while (node) {
475 ca_name = container_of(node, typeof(*ca_name), node);
476 back = eb64_next(node);
477 eb64_delete(node);
478 free(ca_name);
479 node = back;
480 }
481 }
482 return ca_e->ca_list;
483}
484
Willy Tarreauff882702021-04-10 17:23:00 +0200485struct pool_head *pool_head_ssl_capture __read_mostly = NULL;
William Lallemand15e16942020-05-15 00:25:08 +0200486int ssl_capture_ptr_index = -1;
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +0100487int ssl_app_data_index = -1;
Willy Tarreauef934602016-12-22 23:12:01 +0100488
William Lallemandca5cf0a2021-06-09 16:46:12 +0200489#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200490int ssl_keylog_index = -1;
Willy Tarreauff882702021-04-10 17:23:00 +0200491struct pool_head *pool_head_ssl_keylog __read_mostly = NULL;
492struct pool_head *pool_head_ssl_keylog_str __read_mostly = NULL;
William Lallemand7d42ef52020-07-06 11:41:30 +0200493#endif
494
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200495#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
496struct list tlskeys_reference = LIST_HEAD_INIT(tlskeys_reference);
497#endif
498
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200499#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200500unsigned int openssl_engines_initialized;
Grant Zhang872f9c22017-01-21 01:10:18 +0000501struct list openssl_engines = LIST_HEAD_INIT(openssl_engines);
502struct ssl_engine_list {
503 struct list list;
504 ENGINE *e;
505};
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200506#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000507
Remi Gacogne8de54152014-07-15 11:36:40 +0200508#ifndef OPENSSL_NO_DH
Remi Gacogne4f902b82015-05-28 16:23:00 +0200509static int ssl_dh_ptr_index = -1;
Remi Gacogne47783ef2015-05-29 15:53:22 +0200510static DH *global_dh = NULL;
Remi Gacogne8de54152014-07-15 11:36:40 +0200511static DH *local_dh_1024 = NULL;
512static DH *local_dh_2048 = NULL;
513static DH *local_dh_4096 = NULL;
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +0100514static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen);
Remi Gacogne8de54152014-07-15 11:36:40 +0200515#endif /* OPENSSL_NO_DH */
516
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100517#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Christopher Faulet31af49d2015-06-09 17:29:50 +0200518/* X509V3 Extensions that will be added on generated certificates */
519#define X509V3_EXT_SIZE 5
520static char *x509v3_ext_names[X509V3_EXT_SIZE] = {
521 "basicConstraints",
522 "nsComment",
523 "subjectKeyIdentifier",
524 "authorityKeyIdentifier",
525 "keyUsage",
526};
527static char *x509v3_ext_values[X509V3_EXT_SIZE] = {
528 "CA:FALSE",
529 "\"OpenSSL Generated Certificate\"",
530 "hash",
531 "keyid,issuer:always",
532 "nonRepudiation,digitalSignature,keyEncipherment"
533};
Christopher Faulet31af49d2015-06-09 17:29:50 +0200534/* LRU cache to store generated certificate */
535static struct lru64_head *ssl_ctx_lru_tree = NULL;
536static unsigned int ssl_ctx_lru_seed = 0;
Emeric Brun821bb9b2017-06-15 16:37:39 +0200537static unsigned int ssl_ctx_serial;
Willy Tarreau86abe442018-11-25 20:12:18 +0100538__decl_rwlock(ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200539
Willy Tarreauc8ad3be2015-06-17 15:48:26 +0200540#endif // SSL_CTRL_SET_TLSEXT_HOSTNAME
541
yanbzhube2774d2015-12-10 15:07:30 -0500542/* The order here matters for picking a default context,
543 * keep the most common keytype at the bottom of the list
544 */
545const char *SSL_SOCK_KEYTYPE_NAMES[] = {
546 "dsa",
547 "ecdsa",
548 "rsa"
549};
yanbzhube2774d2015-12-10 15:07:30 -0500550
William Lallemandc3cd35f2017-11-28 11:04:43 +0100551static struct shared_context *ssl_shctx = NULL; /* ssl shared session cache */
William Lallemand4f45bb92017-10-30 20:08:51 +0100552static struct eb_root *sh_ssl_sess_tree; /* ssl shared session tree */
553
Dragan Dosen9ac98092020-05-11 15:51:45 +0200554/* Dedicated callback functions for heartbeat and clienthello.
555 */
556#ifdef TLS1_RT_HEARTBEAT
557static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
558 int content_type, const void *buf, size_t len,
559 SSL *ssl);
560#endif
561static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
562 int content_type, const void *buf, size_t len,
563 SSL *ssl);
564
William Lallemandca5cf0a2021-06-09 16:46:12 +0200565#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200566static void ssl_init_keylog(struct connection *conn, int write_p, int version,
567 int content_type, const void *buf, size_t len,
568 SSL *ssl);
569#endif
570
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200571/* List head of all registered SSL/TLS protocol message callbacks. */
572struct list ssl_sock_msg_callbacks = LIST_HEAD_INIT(ssl_sock_msg_callbacks);
573
574/* Registers the function <func> in order to be called on SSL/TLS protocol
575 * message processing. It will return 0 if the function <func> is not set
576 * or if it fails to allocate memory.
577 */
578int ssl_sock_register_msg_callback(ssl_sock_msg_callback_func func)
579{
580 struct ssl_sock_msg_callback *cbk;
581
582 if (!func)
583 return 0;
584
585 cbk = calloc(1, sizeof(*cbk));
586 if (!cbk) {
587 ha_alert("out of memory in ssl_sock_register_msg_callback().\n");
588 return 0;
589 }
590
591 cbk->func = func;
592
Willy Tarreau2b718102021-04-21 07:32:39 +0200593 LIST_APPEND(&ssl_sock_msg_callbacks, &cbk->list);
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200594
595 return 1;
596}
597
Dragan Dosen9ac98092020-05-11 15:51:45 +0200598/* Used to register dedicated SSL/TLS protocol message callbacks.
599 */
600static int ssl_sock_register_msg_callbacks(void)
601{
602#ifdef TLS1_RT_HEARTBEAT
603 if (!ssl_sock_register_msg_callback(ssl_sock_parse_heartbeat))
604 return ERR_ABORT;
605#endif
606 if (global_ssl.capture_cipherlist > 0) {
607 if (!ssl_sock_register_msg_callback(ssl_sock_parse_clienthello))
608 return ERR_ABORT;
609 }
William Lallemandca5cf0a2021-06-09 16:46:12 +0200610#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200611 if (global_ssl.keylog > 0) {
612 if (!ssl_sock_register_msg_callback(ssl_init_keylog))
613 return ERR_ABORT;
614 }
615#endif
616
Christopher Fauletfc633b62020-11-06 15:24:23 +0100617 return ERR_NONE;
Dragan Dosen9ac98092020-05-11 15:51:45 +0200618}
619
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200620/* Used to free all SSL/TLS protocol message callbacks that were
621 * registered by using ssl_sock_register_msg_callback().
622 */
623static void ssl_sock_unregister_msg_callbacks(void)
624{
625 struct ssl_sock_msg_callback *cbk, *cbkback;
626
627 list_for_each_entry_safe(cbk, cbkback, &ssl_sock_msg_callbacks, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +0200628 LIST_DELETE(&cbk->list);
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200629 free(cbk);
630 }
631}
632
Dragan Doseneb607fe2020-05-11 17:17:06 +0200633SSL *ssl_sock_get_ssl_object(struct connection *conn)
634{
635 if (!ssl_sock_is_ssl(conn))
636 return NULL;
637
638 return ((struct ssl_sock_ctx *)(conn->xprt_ctx))->ssl;
639}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100640/*
641 * This function gives the detail of the SSL error. It is used only
642 * if the debug mode and the verbose mode are activated. It dump all
643 * the SSL error until the stack was empty.
644 */
645static forceinline void ssl_sock_dump_errors(struct connection *conn)
646{
647 unsigned long ret;
648
649 if (unlikely(global.mode & MODE_DEBUG)) {
650 while(1) {
651 ret = ERR_get_error();
652 if (ret == 0)
653 return;
Willy Tarreau566cebc2021-03-02 19:32:39 +0100654 fprintf(stderr, "fd[%#x] OpenSSL error[0x%lx] %s: %s\n",
655 conn->handle.fd, ret,
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100656 ERR_func_error_string(ret), ERR_reason_error_string(ret));
657 }
658 }
659}
660
yanbzhube2774d2015-12-10 15:07:30 -0500661
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200662#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200663int ssl_init_single_engine(const char *engine_id, const char *def_algorithms)
Grant Zhang872f9c22017-01-21 01:10:18 +0000664{
665 int err_code = ERR_ABORT;
666 ENGINE *engine;
667 struct ssl_engine_list *el;
668
669 /* grab the structural reference to the engine */
670 engine = ENGINE_by_id(engine_id);
671 if (engine == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100672 ha_alert("ssl-engine %s: failed to get structural reference\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000673 goto fail_get;
674 }
675
676 if (!ENGINE_init(engine)) {
677 /* the engine couldn't initialise, release it */
Christopher Faulet767a84b2017-11-24 16:50:31 +0100678 ha_alert("ssl-engine %s: failed to initialize\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000679 goto fail_init;
680 }
681
682 if (ENGINE_set_default_string(engine, def_algorithms) == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100683 ha_alert("ssl-engine %s: failed on ENGINE_set_default_string\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000684 goto fail_set_method;
685 }
686
687 el = calloc(1, sizeof(*el));
Remi Tricot-Le Breton46697c82021-05-12 17:45:21 +0200688 if (!el)
689 goto fail_alloc;
Grant Zhang872f9c22017-01-21 01:10:18 +0000690 el->e = engine;
Willy Tarreau2b718102021-04-21 07:32:39 +0200691 LIST_INSERT(&openssl_engines, &el->list);
Emeric Brunece0c332017-12-06 13:51:49 +0100692 nb_engines++;
693 if (global_ssl.async)
694 global.ssl_used_async_engines = nb_engines;
Grant Zhang872f9c22017-01-21 01:10:18 +0000695 return 0;
696
Remi Tricot-Le Breton46697c82021-05-12 17:45:21 +0200697fail_alloc:
Grant Zhang872f9c22017-01-21 01:10:18 +0000698fail_set_method:
699 /* release the functional reference from ENGINE_init() */
700 ENGINE_finish(engine);
701
702fail_init:
703 /* release the structural reference from ENGINE_by_id() */
704 ENGINE_free(engine);
705
706fail_get:
707 return err_code;
708}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200709#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000710
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +0500711#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +0200712/*
713 * openssl async fd handler
714 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200715void ssl_async_fd_handler(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000716{
Olivier Houchardea8dd942019-05-20 14:02:16 +0200717 struct ssl_sock_ctx *ctx = fdtab[fd].owner;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000718
Emeric Brun3854e012017-05-17 20:42:48 +0200719 /* fd is an async enfine fd, we must stop
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000720 * to poll this fd until it is requested
721 */
Emeric Brunbbc16542017-06-02 15:54:06 +0000722 fd_stop_recv(fd);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000723 fd_cant_recv(fd);
724
725 /* crypto engine is available, let's notify the associated
726 * connection that it can pursue its processing.
727 */
Olivier Houcharda4598262020-09-15 22:16:02 +0200728 tasklet_wakeup(ctx->wait_event.tasklet);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000729}
730
Emeric Brun3854e012017-05-17 20:42:48 +0200731/*
732 * openssl async delayed SSL_free handler
733 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200734void ssl_async_fd_free(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000735{
736 SSL *ssl = fdtab[fd].owner;
Emeric Brun3854e012017-05-17 20:42:48 +0200737 OSSL_ASYNC_FD all_fd[32];
738 size_t num_all_fds = 0;
739 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000740
Emeric Brun3854e012017-05-17 20:42:48 +0200741 /* We suppose that the async job for a same SSL *
742 * are serialized. So if we are awake it is
743 * because the running job has just finished
744 * and we can remove all async fds safely
745 */
746 SSL_get_all_async_fds(ssl, NULL, &num_all_fds);
747 if (num_all_fds > 32) {
748 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
749 return;
750 }
751
752 SSL_get_all_async_fds(ssl, all_fd, &num_all_fds);
753 for (i=0 ; i < num_all_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +0200754 fd_stop_both(all_fd[i]);
Emeric Brun3854e012017-05-17 20:42:48 +0200755
756 /* Now we can safely call SSL_free, no more pending job in engines */
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000757 SSL_free(ssl);
Willy Tarreau4781b152021-04-06 13:53:36 +0200758 _HA_ATOMIC_DEC(&sslconns);
759 _HA_ATOMIC_DEC(&jobs);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000760}
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000761/*
Emeric Brun3854e012017-05-17 20:42:48 +0200762 * function used to manage a returned SSL_ERROR_WANT_ASYNC
763 * and enable/disable polling for async fds
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000764 */
Olivier Houchardea8dd942019-05-20 14:02:16 +0200765static inline void ssl_async_process_fds(struct ssl_sock_ctx *ctx)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000766{
Willy Tarreaua9786b62018-01-25 07:22:13 +0100767 OSSL_ASYNC_FD add_fd[32];
Emeric Brun3854e012017-05-17 20:42:48 +0200768 OSSL_ASYNC_FD del_fd[32];
Olivier Houchardea8dd942019-05-20 14:02:16 +0200769 SSL *ssl = ctx->ssl;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000770 size_t num_add_fds = 0;
771 size_t num_del_fds = 0;
Emeric Brun3854e012017-05-17 20:42:48 +0200772 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000773
774 SSL_get_changed_async_fds(ssl, NULL, &num_add_fds, NULL,
775 &num_del_fds);
Emeric Brun3854e012017-05-17 20:42:48 +0200776 if (num_add_fds > 32 || num_del_fds > 32) {
777 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 +0000778 return;
779 }
780
Emeric Brun3854e012017-05-17 20:42:48 +0200781 SSL_get_changed_async_fds(ssl, add_fd, &num_add_fds, del_fd, &num_del_fds);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000782
Emeric Brun3854e012017-05-17 20:42:48 +0200783 /* We remove unused fds from the fdtab */
784 for (i=0 ; i < num_del_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +0200785 fd_stop_both(del_fd[i]);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000786
Emeric Brun3854e012017-05-17 20:42:48 +0200787 /* We add new fds to the fdtab */
788 for (i=0 ; i < num_add_fds ; i++) {
Olivier Houchardea8dd942019-05-20 14:02:16 +0200789 fd_insert(add_fd[i], ctx, ssl_async_fd_handler, tid_bit);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000790 }
791
Emeric Brun3854e012017-05-17 20:42:48 +0200792 num_add_fds = 0;
793 SSL_get_all_async_fds(ssl, NULL, &num_add_fds);
794 if (num_add_fds > 32) {
795 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
796 return;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000797 }
Emeric Brun3854e012017-05-17 20:42:48 +0200798
799 /* We activate the polling for all known async fds */
800 SSL_get_all_async_fds(ssl, add_fd, &num_add_fds);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000801 for (i=0 ; i < num_add_fds ; i++) {
Emeric Brun3854e012017-05-17 20:42:48 +0200802 fd_want_recv(add_fd[i]);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000803 /* To ensure that the fd cache won't be used
804 * We'll prefer to catch a real RD event
805 * because handling an EAGAIN on this fd will
806 * result in a context switch and also
807 * some engines uses a fd in blocking mode.
808 */
809 fd_cant_recv(add_fd[i]);
810 }
Emeric Brun3854e012017-05-17 20:42:48 +0200811
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000812}
813#endif
814
William Lallemand104a7a62019-10-14 14:14:59 +0200815#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200816/*
817 * This function returns the number of seconds elapsed
818 * since the Epoch, 1970-01-01 00:00:00 +0000 (UTC) and the
819 * date presented un ASN1_GENERALIZEDTIME.
820 *
821 * In parsing error case, it returns -1.
822 */
823static long asn1_generalizedtime_to_epoch(ASN1_GENERALIZEDTIME *d)
824{
825 long epoch;
826 char *p, *end;
827 const unsigned short month_offset[12] = {
828 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
829 };
Remi Tricot-Le Breton1adb4392021-06-09 17:16:18 +0200830 unsigned long year, month;
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200831
832 if (!d || (d->type != V_ASN1_GENERALIZEDTIME)) return -1;
833
834 p = (char *)d->data;
835 end = p + d->length;
836
837 if (end - p < 4) return -1;
838 year = 1000 * (p[0] - '0') + 100 * (p[1] - '0') + 10 * (p[2] - '0') + p[3] - '0';
839 p += 4;
840 if (end - p < 2) return -1;
841 month = 10 * (p[0] - '0') + p[1] - '0';
842 if (month < 1 || month > 12) return -1;
843 /* Compute the number of seconds since 1 jan 1970 and the beginning of current month
844 We consider leap years and the current month (<marsh or not) */
845 epoch = ( ((year - 1970) * 365)
846 + ((year - (month < 3)) / 4 - (year - (month < 3)) / 100 + (year - (month < 3)) / 400)
847 - ((1970 - 1) / 4 - (1970 - 1) / 100 + (1970 - 1) / 400)
848 + month_offset[month-1]
849 ) * 24 * 60 * 60;
850 p += 2;
851 if (end - p < 2) return -1;
852 /* Add the number of seconds of completed days of current month */
853 epoch += (10 * (p[0] - '0') + p[1] - '0' - 1) * 24 * 60 * 60;
854 p += 2;
855 if (end - p < 2) return -1;
856 /* Add the completed hours of the current day */
857 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60 * 60;
858 p += 2;
859 if (end - p < 2) return -1;
860 /* Add the completed minutes of the current hour */
861 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60;
862 p += 2;
863 if (p == end) return -1;
864 /* Test if there is available seconds */
865 if (p[0] < '0' || p[0] > '9')
866 goto nosec;
867 if (end - p < 2) return -1;
868 /* Add the seconds of the current minute */
869 epoch += 10 * (p[0] - '0') + p[1] - '0';
870 p += 2;
871 if (p == end) return -1;
872 /* Ignore seconds float part if present */
873 if (p[0] == '.') {
874 do {
875 if (++p == end) return -1;
876 } while (p[0] >= '0' && p[0] <= '9');
877 }
878
879nosec:
880 if (p[0] == 'Z') {
881 if (end - p != 1) return -1;
882 return epoch;
883 }
884 else if (p[0] == '+') {
885 if (end - p != 5) return -1;
886 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700887 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 +0200888 }
889 else if (p[0] == '-') {
890 if (end - p != 5) return -1;
891 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700892 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 +0200893 }
894
895 return -1;
896}
897
William Lallemand104a7a62019-10-14 14:14:59 +0200898/*
899 * struct alignment works here such that the key.key is the same as key_data
900 * Do not change the placement of key_data
901 */
902struct certificate_ocsp {
903 struct ebmb_node key;
904 unsigned char key_data[OCSP_MAX_CERTID_ASN1_LENGTH];
905 struct buffer response;
William Lallemand76b4a122020-08-04 17:41:39 +0200906 int refcount;
William Lallemand104a7a62019-10-14 14:14:59 +0200907 long expire;
908};
909
910struct ocsp_cbk_arg {
911 int is_single;
912 int single_kt;
913 union {
914 struct certificate_ocsp *s_ocsp;
915 /*
916 * m_ocsp will have multiple entries dependent on key type
917 * Entry 0 - DSA
918 * Entry 1 - ECDSA
919 * Entry 2 - RSA
920 */
921 struct certificate_ocsp *m_ocsp[SSL_SOCK_NUM_KEYTYPES];
922 };
923};
924
Emeric Brun1d3865b2014-06-20 15:37:32 +0200925static struct eb_root cert_ocsp_tree = EB_ROOT_UNIQUE;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200926
927/* This function starts to check if the OCSP response (in DER format) contained
928 * in chunk 'ocsp_response' is valid (else exits on error).
929 * If 'cid' is not NULL, it will be compared to the OCSP certificate ID
930 * contained in the OCSP Response and exits on error if no match.
931 * If it's a valid OCSP Response:
932 * If 'ocsp' is not NULL, the chunk is copied in the OCSP response's container
933 * pointed by 'ocsp'.
934 * If 'ocsp' is NULL, the function looks up into the OCSP response's
935 * containers tree (using as index the ASN1 form of the OCSP Certificate ID extracted
936 * from the response) and exits on error if not found. Finally, If an OCSP response is
937 * already present in the container, it will be overwritten.
938 *
939 * Note: OCSP response containing more than one OCSP Single response is not
940 * considered valid.
941 *
942 * Returns 0 on success, 1 in error case.
943 */
Willy Tarreau83061a82018-07-13 11:56:34 +0200944static int ssl_sock_load_ocsp_response(struct buffer *ocsp_response,
945 struct certificate_ocsp *ocsp,
946 OCSP_CERTID *cid, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +0200947{
948 OCSP_RESPONSE *resp;
949 OCSP_BASICRESP *bs = NULL;
950 OCSP_SINGLERESP *sr;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200951 OCSP_CERTID *id;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200952 unsigned char *p = (unsigned char *) ocsp_response->area;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200953 int rc , count_sr;
Emeric Brun13a6b482014-06-20 15:44:34 +0200954 ASN1_GENERALIZEDTIME *revtime, *thisupd, *nextupd = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200955 int reason;
956 int ret = 1;
957
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200958 resp = d2i_OCSP_RESPONSE(NULL, (const unsigned char **)&p,
959 ocsp_response->data);
Emeric Brun4147b2e2014-06-16 18:36:30 +0200960 if (!resp) {
961 memprintf(err, "Unable to parse OCSP response");
962 goto out;
963 }
964
965 rc = OCSP_response_status(resp);
966 if (rc != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
967 memprintf(err, "OCSP response status not successful");
968 goto out;
969 }
970
971 bs = OCSP_response_get1_basic(resp);
972 if (!bs) {
973 memprintf(err, "Failed to get basic response from OCSP Response");
974 goto out;
975 }
976
977 count_sr = OCSP_resp_count(bs);
978 if (count_sr > 1) {
979 memprintf(err, "OCSP response ignored because contains multiple single responses (%d)", count_sr);
980 goto out;
981 }
982
983 sr = OCSP_resp_get0(bs, 0);
984 if (!sr) {
985 memprintf(err, "Failed to get OCSP single response");
986 goto out;
987 }
988
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200989 id = (OCSP_CERTID*)OCSP_SINGLERESP_get0_id(sr);
990
Emeric Brun4147b2e2014-06-16 18:36:30 +0200991 rc = OCSP_single_get0_status(sr, &reason, &revtime, &thisupd, &nextupd);
Emmanuel Hocdetef607052017-10-24 14:57:16 +0200992 if (rc != V_OCSP_CERTSTATUS_GOOD && rc != V_OCSP_CERTSTATUS_REVOKED) {
Emmanuel Hocdet872085c2017-10-10 15:18:52 +0200993 memprintf(err, "OCSP single response: certificate status is unknown");
Emeric Brun4147b2e2014-06-16 18:36:30 +0200994 goto out;
995 }
996
Emeric Brun13a6b482014-06-20 15:44:34 +0200997 if (!nextupd) {
998 memprintf(err, "OCSP single response: missing nextupdate");
999 goto out;
1000 }
1001
Emeric Brunc8b27b62014-06-19 14:16:17 +02001002 rc = OCSP_check_validity(thisupd, nextupd, OCSP_MAX_RESPONSE_TIME_SKEW, -1);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001003 if (!rc) {
1004 memprintf(err, "OCSP single response: no longer valid.");
1005 goto out;
1006 }
1007
1008 if (cid) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001009 if (OCSP_id_cmp(id, cid)) {
Emeric Brun4147b2e2014-06-16 18:36:30 +02001010 memprintf(err, "OCSP single response: Certificate ID does not match certificate and issuer");
1011 goto out;
1012 }
1013 }
1014
1015 if (!ocsp) {
1016 unsigned char key[OCSP_MAX_CERTID_ASN1_LENGTH];
1017 unsigned char *p;
1018
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001019 rc = i2d_OCSP_CERTID(id, NULL);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001020 if (!rc) {
1021 memprintf(err, "OCSP single response: Unable to encode Certificate ID");
1022 goto out;
1023 }
1024
1025 if (rc > OCSP_MAX_CERTID_ASN1_LENGTH) {
1026 memprintf(err, "OCSP single response: Certificate ID too long");
1027 goto out;
1028 }
1029
1030 p = key;
1031 memset(key, 0, OCSP_MAX_CERTID_ASN1_LENGTH);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001032 i2d_OCSP_CERTID(id, &p);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001033 ocsp = (struct certificate_ocsp *)ebmb_lookup(&cert_ocsp_tree, key, OCSP_MAX_CERTID_ASN1_LENGTH);
1034 if (!ocsp) {
1035 memprintf(err, "OCSP single response: Certificate ID does not match any certificate or issuer");
1036 goto out;
1037 }
1038 }
1039
1040 /* According to comments on "chunk_dup", the
1041 previous chunk buffer will be freed */
1042 if (!chunk_dup(&ocsp->response, ocsp_response)) {
1043 memprintf(err, "OCSP response: Memory allocation error");
1044 goto out;
1045 }
1046
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001047 ocsp->expire = asn1_generalizedtime_to_epoch(nextupd) - OCSP_MAX_RESPONSE_TIME_SKEW;
Remi Tricot-Le Breton1adb4392021-06-09 17:16:18 +02001048 if (ocsp->expire < 0) {
1049 memprintf(err, "OCSP single response: Invalid \"Next Update\" time");
1050 goto out;
1051 }
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001052
Emeric Brun4147b2e2014-06-16 18:36:30 +02001053 ret = 0;
1054out:
Janusz Dziemidowicz8d710492017-03-08 16:59:41 +01001055 ERR_clear_error();
1056
Emeric Brun4147b2e2014-06-16 18:36:30 +02001057 if (bs)
1058 OCSP_BASICRESP_free(bs);
1059
1060 if (resp)
1061 OCSP_RESPONSE_free(resp);
1062
1063 return ret;
1064}
1065/*
1066 * External function use to update the OCSP response in the OCSP response's
1067 * containers tree. The chunk 'ocsp_response' must contain the OCSP response
1068 * to update in DER format.
1069 *
1070 * Returns 0 on success, 1 in error case.
1071 */
Willy Tarreau83061a82018-07-13 11:56:34 +02001072int ssl_sock_update_ocsp_response(struct buffer *ocsp_response, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +02001073{
1074 return ssl_sock_load_ocsp_response(ocsp_response, NULL, NULL, err);
1075}
1076
William Lallemand4a660132019-10-14 14:51:41 +02001077#endif
1078
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001079#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
1080static 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)
1081{
Christopher Faulet16f45c82018-02-16 11:23:49 +01001082 struct tls_keys_ref *ref;
Emeric Brun9e754772019-01-10 17:51:55 +01001083 union tls_sess_key *keys;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001084 struct connection *conn;
1085 int head;
1086 int i;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001087 int ret = -1; /* error by default */
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001088
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001089 conn = SSL_get_ex_data(s, ssl_app_data_index);
Willy Tarreau07d94e42018-09-20 10:57:52 +02001090 ref = __objt_listener(conn->target)->bind_conf->keys_ref;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001091 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1092
1093 keys = ref->tlskeys;
1094 head = ref->tls_ticket_enc_index;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001095
1096 if (enc) {
1097 memcpy(key_name, keys[head].name, 16);
1098
1099 if(!RAND_pseudo_bytes(iv, EVP_MAX_IV_LENGTH))
Christopher Faulet16f45c82018-02-16 11:23:49 +01001100 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001101
Emeric Brun9e754772019-01-10 17:51:55 +01001102 if (ref->key_size_bits == 128) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001103
Emeric Brun9e754772019-01-10 17:51:55 +01001104 if(!EVP_EncryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[head].key_128.aes_key, iv))
1105 goto end;
1106
Willy Tarreau9356dac2019-05-10 09:22:53 +02001107 HMAC_Init_ex(hctx, keys[head].key_128.hmac_key, 16, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001108 ret = 1;
1109 }
1110 else if (ref->key_size_bits == 256 ) {
1111
1112 if(!EVP_EncryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[head].key_256.aes_key, iv))
1113 goto end;
1114
Willy Tarreau9356dac2019-05-10 09:22:53 +02001115 HMAC_Init_ex(hctx, keys[head].key_256.hmac_key, 32, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001116 ret = 1;
1117 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001118 } else {
1119 for (i = 0; i < TLS_TICKETS_NO; i++) {
1120 if (!memcmp(key_name, keys[(head + i) % TLS_TICKETS_NO].name, 16))
1121 goto found;
1122 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01001123 ret = 0;
1124 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001125
Christopher Faulet16f45c82018-02-16 11:23:49 +01001126 found:
Emeric Brun9e754772019-01-10 17:51:55 +01001127 if (ref->key_size_bits == 128) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001128 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 +01001129 if(!EVP_DecryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_128.aes_key, iv))
1130 goto end;
1131 /* 2 for key renewal, 1 if current key is still valid */
1132 ret = i ? 2 : 1;
1133 }
1134 else if (ref->key_size_bits == 256) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001135 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 +01001136 if(!EVP_DecryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_256.aes_key, iv))
1137 goto end;
1138 /* 2 for key renewal, 1 if current key is still valid */
1139 ret = i ? 2 : 1;
1140 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001141 }
Emeric Brun9e754772019-01-10 17:51:55 +01001142
Christopher Faulet16f45c82018-02-16 11:23:49 +01001143 end:
1144 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1145 return ret;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001146}
1147
1148struct tls_keys_ref *tlskeys_ref_lookup(const char *filename)
1149{
1150 struct tls_keys_ref *ref;
1151
1152 list_for_each_entry(ref, &tlskeys_reference, list)
1153 if (ref->filename && strcmp(filename, ref->filename) == 0)
1154 return ref;
1155 return NULL;
1156}
1157
1158struct tls_keys_ref *tlskeys_ref_lookupid(int unique_id)
1159{
1160 struct tls_keys_ref *ref;
1161
1162 list_for_each_entry(ref, &tlskeys_reference, list)
1163 if (ref->unique_id == unique_id)
1164 return ref;
1165 return NULL;
1166}
1167
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001168/* Update the key into ref: if keysize doesn't
Emeric Brun9e754772019-01-10 17:51:55 +01001169 * match existing ones, this function returns -1
1170 * else it returns 0 on success.
1171 */
1172int ssl_sock_update_tlskey_ref(struct tls_keys_ref *ref,
Willy Tarreau83061a82018-07-13 11:56:34 +02001173 struct buffer *tlskey)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001174{
Emeric Brun9e754772019-01-10 17:51:55 +01001175 if (ref->key_size_bits == 128) {
1176 if (tlskey->data != sizeof(struct tls_sess_key_128))
1177 return -1;
1178 }
1179 else if (ref->key_size_bits == 256) {
1180 if (tlskey->data != sizeof(struct tls_sess_key_256))
1181 return -1;
1182 }
1183 else
1184 return -1;
1185
Christopher Faulet16f45c82018-02-16 11:23:49 +01001186 HA_RWLOCK_WRLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001187 memcpy((char *) (ref->tlskeys + ((ref->tls_ticket_enc_index + 2) % TLS_TICKETS_NO)),
1188 tlskey->area, tlskey->data);
Christopher Faulet16f45c82018-02-16 11:23:49 +01001189 ref->tls_ticket_enc_index = (ref->tls_ticket_enc_index + 1) % TLS_TICKETS_NO;
1190 HA_RWLOCK_WRUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Emeric Brun9e754772019-01-10 17:51:55 +01001191
1192 return 0;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001193}
1194
Willy Tarreau83061a82018-07-13 11:56:34 +02001195int ssl_sock_update_tlskey(char *filename, struct buffer *tlskey, char **err)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001196{
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001197 struct tls_keys_ref *ref = tlskeys_ref_lookup(filename);
1198
1199 if(!ref) {
1200 memprintf(err, "Unable to locate the referenced filename: %s", filename);
1201 return 1;
1202 }
Emeric Brun9e754772019-01-10 17:51:55 +01001203 if (ssl_sock_update_tlskey_ref(ref, tlskey) < 0) {
1204 memprintf(err, "Invalid key size");
1205 return 1;
1206 }
1207
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001208 return 0;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001209}
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001210
1211/* This function finalize the configuration parsing. Its set all the
Willy Tarreaud1c57502016-12-22 22:46:15 +01001212 * automatic ids. It's called just after the basic checks. It returns
1213 * 0 on success otherwise ERR_*.
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001214 */
Willy Tarreaud1c57502016-12-22 22:46:15 +01001215static int tlskeys_finalize_config(void)
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001216{
1217 int i = 0;
1218 struct tls_keys_ref *ref, *ref2, *ref3;
1219 struct list tkr = LIST_HEAD_INIT(tkr);
1220
1221 list_for_each_entry(ref, &tlskeys_reference, list) {
1222 if (ref->unique_id == -1) {
1223 /* Look for the first free id. */
1224 while (1) {
1225 list_for_each_entry(ref2, &tlskeys_reference, list) {
1226 if (ref2->unique_id == i) {
1227 i++;
1228 break;
1229 }
1230 }
1231 if (&ref2->list == &tlskeys_reference)
1232 break;
1233 }
1234
1235 /* Uses the unique id and increment it for the next entry. */
1236 ref->unique_id = i;
1237 i++;
1238 }
1239 }
1240
1241 /* This sort the reference list by id. */
1242 list_for_each_entry_safe(ref, ref2, &tlskeys_reference, list) {
Willy Tarreau2b718102021-04-21 07:32:39 +02001243 LIST_DELETE(&ref->list);
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001244 list_for_each_entry(ref3, &tkr, list) {
1245 if (ref->unique_id < ref3->unique_id) {
Willy Tarreau2b718102021-04-21 07:32:39 +02001246 LIST_APPEND(&ref3->list, &ref->list);
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001247 break;
1248 }
1249 }
1250 if (&ref3->list == &tkr)
Willy Tarreau2b718102021-04-21 07:32:39 +02001251 LIST_APPEND(&tkr, &ref->list);
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001252 }
1253
1254 /* swap root */
Willy Tarreau2b718102021-04-21 07:32:39 +02001255 LIST_INSERT(&tkr, &tlskeys_reference);
1256 LIST_DELETE(&tkr);
Christopher Fauletfc633b62020-11-06 15:24:23 +01001257 return ERR_NONE;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001258}
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001259#endif /* SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB */
1260
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001261#ifndef OPENSSL_NO_OCSP
William Lallemand76b4a122020-08-04 17:41:39 +02001262int ocsp_ex_index = -1;
1263
yanbzhube2774d2015-12-10 15:07:30 -05001264int ssl_sock_get_ocsp_arg_kt_index(int evp_keytype)
1265{
1266 switch (evp_keytype) {
1267 case EVP_PKEY_RSA:
1268 return 2;
1269 case EVP_PKEY_DSA:
1270 return 0;
1271 case EVP_PKEY_EC:
1272 return 1;
1273 }
1274
1275 return -1;
1276}
1277
Emeric Brun4147b2e2014-06-16 18:36:30 +02001278/*
1279 * Callback used to set OCSP status extension content in server hello.
1280 */
1281int ssl_sock_ocsp_stapling_cbk(SSL *ssl, void *arg)
1282{
yanbzhube2774d2015-12-10 15:07:30 -05001283 struct certificate_ocsp *ocsp;
1284 struct ocsp_cbk_arg *ocsp_arg;
1285 char *ssl_buf;
William Lallemand76b4a122020-08-04 17:41:39 +02001286 SSL_CTX *ctx;
yanbzhube2774d2015-12-10 15:07:30 -05001287 EVP_PKEY *ssl_pkey;
1288 int key_type;
1289 int index;
1290
William Lallemand76b4a122020-08-04 17:41:39 +02001291 ctx = SSL_get_SSL_CTX(ssl);
1292 if (!ctx)
1293 return SSL_TLSEXT_ERR_NOACK;
1294
1295 ocsp_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
1296 if (!ocsp_arg)
1297 return SSL_TLSEXT_ERR_NOACK;
yanbzhube2774d2015-12-10 15:07:30 -05001298
1299 ssl_pkey = SSL_get_privatekey(ssl);
1300 if (!ssl_pkey)
1301 return SSL_TLSEXT_ERR_NOACK;
1302
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001303 key_type = EVP_PKEY_base_id(ssl_pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001304
1305 if (ocsp_arg->is_single && ocsp_arg->single_kt == key_type)
1306 ocsp = ocsp_arg->s_ocsp;
1307 else {
1308 /* For multiple certs per context, we have to find the correct OCSP response based on
1309 * the certificate type
1310 */
1311 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
1312
1313 if (index < 0)
1314 return SSL_TLSEXT_ERR_NOACK;
1315
1316 ocsp = ocsp_arg->m_ocsp[index];
1317
1318 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001319
1320 if (!ocsp ||
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001321 !ocsp->response.area ||
1322 !ocsp->response.data ||
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001323 (ocsp->expire < now.tv_sec))
Emeric Brun4147b2e2014-06-16 18:36:30 +02001324 return SSL_TLSEXT_ERR_NOACK;
1325
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001326 ssl_buf = OPENSSL_malloc(ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001327 if (!ssl_buf)
1328 return SSL_TLSEXT_ERR_NOACK;
1329
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001330 memcpy(ssl_buf, ocsp->response.area, ocsp->response.data);
1331 SSL_set_tlsext_status_ocsp_resp(ssl, ssl_buf, ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001332
1333 return SSL_TLSEXT_ERR_OK;
1334}
1335
William Lallemand4a660132019-10-14 14:51:41 +02001336#endif
1337
Ilya Shipitsinb3201a32020-10-18 09:11:50 +05001338#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
William Lallemand76b4a122020-08-04 17:41:39 +02001339
1340
1341/*
1342 * Decrease the refcount of the struct ocsp_response and frees it if it's not
1343 * used anymore. Also removes it from the tree if free'd.
1344 */
1345static void ssl_sock_free_ocsp(struct certificate_ocsp *ocsp)
1346{
1347 if (!ocsp)
1348 return;
1349
1350 ocsp->refcount--;
1351 if (ocsp->refcount <= 0) {
1352 ebmb_delete(&ocsp->key);
1353 chunk_destroy(&ocsp->response);
1354 free(ocsp);
1355 }
1356}
1357
1358
Emeric Brun4147b2e2014-06-16 18:36:30 +02001359/*
1360 * This function enables the handling of OCSP status extension on 'ctx' if a
William Lallemand246c0242019-10-11 08:59:13 +02001361 * ocsp_response buffer was found in the cert_key_and_chain. To enable OCSP
1362 * status extension, the issuer's certificate is mandatory. It should be
1363 * present in ckch->ocsp_issuer.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001364 *
William Lallemand246c0242019-10-11 08:59:13 +02001365 * In addition, the ckch->ocsp_reponse buffer is loaded as a DER format of an
1366 * OCSP response. If file is empty or content is not a valid OCSP response,
1367 * OCSP status extension is enabled but OCSP response is ignored (a warning is
1368 * displayed).
Emeric Brun4147b2e2014-06-16 18:36:30 +02001369 *
1370 * Returns 1 if no ".ocsp" file found, 0 if OCSP status extension is
Joseph Herlant017b3da2018-11-15 09:07:59 -08001371 * successfully enabled, or -1 in other error case.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001372 */
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001373static 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 +02001374{
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001375 X509 *x, *issuer;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001376 OCSP_CERTID *cid = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001377 int i, ret = -1;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001378 struct certificate_ocsp *ocsp = NULL, *iocsp;
1379 char *warn = NULL;
1380 unsigned char *p;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001381 void (*callback) (void);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001382
Emeric Brun4147b2e2014-06-16 18:36:30 +02001383
William Lallemand246c0242019-10-11 08:59:13 +02001384 x = ckch->cert;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001385 if (!x)
1386 goto out;
1387
William Lallemand246c0242019-10-11 08:59:13 +02001388 issuer = ckch->ocsp_issuer;
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001389 /* take issuer from chain over ocsp_issuer, is what is done historicaly */
1390 if (chain) {
1391 /* check if one of the certificate of the chain is the issuer */
1392 for (i = 0; i < sk_X509_num(chain); i++) {
1393 X509 *ti = sk_X509_value(chain, i);
1394 if (X509_check_issued(ti, x) == X509_V_OK) {
1395 issuer = ti;
1396 break;
1397 }
1398 }
1399 }
William Lallemand246c0242019-10-11 08:59:13 +02001400 if (!issuer)
1401 goto out;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001402
1403 cid = OCSP_cert_to_id(0, x, issuer);
1404 if (!cid)
1405 goto out;
1406
1407 i = i2d_OCSP_CERTID(cid, NULL);
1408 if (!i || (i > OCSP_MAX_CERTID_ASN1_LENGTH))
1409 goto out;
1410
Vincent Bernat02779b62016-04-03 13:48:43 +02001411 ocsp = calloc(1, sizeof(*ocsp));
Emeric Brun4147b2e2014-06-16 18:36:30 +02001412 if (!ocsp)
1413 goto out;
1414
1415 p = ocsp->key_data;
1416 i2d_OCSP_CERTID(cid, &p);
1417
1418 iocsp = (struct certificate_ocsp *)ebmb_insert(&cert_ocsp_tree, &ocsp->key, OCSP_MAX_CERTID_ASN1_LENGTH);
1419 if (iocsp == ocsp)
1420 ocsp = NULL;
1421
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001422#ifndef SSL_CTX_get_tlsext_status_cb
1423# define SSL_CTX_get_tlsext_status_cb(ctx, cb) \
1424 *cb = (void (*) (void))ctx->tlsext_status_cb;
1425#endif
1426 SSL_CTX_get_tlsext_status_cb(ctx, &callback);
1427
1428 if (!callback) {
William Lallemanda560c062020-07-31 11:43:20 +02001429 struct ocsp_cbk_arg *cb_arg;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001430 EVP_PKEY *pkey;
yanbzhube2774d2015-12-10 15:07:30 -05001431
William Lallemanda560c062020-07-31 11:43:20 +02001432 cb_arg = calloc(1, sizeof(*cb_arg));
1433 if (!cb_arg)
1434 goto out;
1435
yanbzhube2774d2015-12-10 15:07:30 -05001436 cb_arg->is_single = 1;
1437 cb_arg->s_ocsp = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001438 iocsp->refcount++;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001439
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001440 pkey = X509_get_pubkey(x);
1441 cb_arg->single_kt = EVP_PKEY_base_id(pkey);
1442 EVP_PKEY_free(pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001443
1444 SSL_CTX_set_tlsext_status_cb(ctx, ssl_sock_ocsp_stapling_cbk);
William Lallemand76b4a122020-08-04 17:41:39 +02001445 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 */
1446
yanbzhube2774d2015-12-10 15:07:30 -05001447 } else {
1448 /*
1449 * If the ctx has a status CB, then we have previously set an OCSP staple for this ctx
1450 * Update that cb_arg with the new cert's staple
1451 */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001452 struct ocsp_cbk_arg *cb_arg;
yanbzhube2774d2015-12-10 15:07:30 -05001453 struct certificate_ocsp *tmp_ocsp;
1454 int index;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001455 int key_type;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001456 EVP_PKEY *pkey;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001457
William Lallemand76b4a122020-08-04 17:41:39 +02001458 cb_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
yanbzhube2774d2015-12-10 15:07:30 -05001459
1460 /*
1461 * The following few lines will convert cb_arg from a single ocsp to multi ocsp
1462 * the order of operations below matter, take care when changing it
1463 */
1464 tmp_ocsp = cb_arg->s_ocsp;
1465 index = ssl_sock_get_ocsp_arg_kt_index(cb_arg->single_kt);
1466 cb_arg->s_ocsp = NULL;
1467 cb_arg->m_ocsp[index] = tmp_ocsp;
1468 cb_arg->is_single = 0;
1469 cb_arg->single_kt = 0;
1470
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001471 pkey = X509_get_pubkey(x);
1472 key_type = EVP_PKEY_base_id(pkey);
1473 EVP_PKEY_free(pkey);
1474
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001475 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
William Lallemand76b4a122020-08-04 17:41:39 +02001476 if (index >= 0 && !cb_arg->m_ocsp[index]) {
yanbzhube2774d2015-12-10 15:07:30 -05001477 cb_arg->m_ocsp[index] = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001478 iocsp->refcount++;
1479 }
yanbzhube2774d2015-12-10 15:07:30 -05001480 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001481
1482 ret = 0;
1483
1484 warn = NULL;
William Lallemand86e4d632020-08-07 00:44:32 +02001485 if (ssl_sock_load_ocsp_response(ckch->ocsp_response, iocsp, cid, &warn)) {
William Lallemand3b5f3602019-10-16 18:05:05 +02001486 memprintf(&warn, "Loading: %s. Content will be ignored", warn ? warn : "failure");
Christopher Faulet767a84b2017-11-24 16:50:31 +01001487 ha_warning("%s.\n", warn);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001488 }
1489
1490out:
Emeric Brun4147b2e2014-06-16 18:36:30 +02001491 if (cid)
1492 OCSP_CERTID_free(cid);
1493
1494 if (ocsp)
1495 free(ocsp);
1496
1497 if (warn)
1498 free(warn);
1499
Emeric Brun4147b2e2014-06-16 18:36:30 +02001500 return ret;
1501}
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01001502#endif
1503
1504#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001505static 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 +02001506{
William Lallemand4a660132019-10-14 14:51:41 +02001507 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 +02001508}
1509#endif
1510
William Lallemand4a660132019-10-14 14:51:41 +02001511
Ilya Shipitsin7bbf5862021-02-06 18:55:27 +05001512#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001513
1514#define CT_EXTENSION_TYPE 18
1515
William Lallemand03c331c2020-05-13 10:10:01 +02001516int sctl_ex_index = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001517
1518int ssl_sock_sctl_add_cbk(SSL *ssl, unsigned ext_type, const unsigned char **out, size_t *outlen, int *al, void *add_arg)
1519{
Willy Tarreau83061a82018-07-13 11:56:34 +02001520 struct buffer *sctl = add_arg;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001521
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001522 *out = (unsigned char *) sctl->area;
1523 *outlen = sctl->data;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001524
1525 return 1;
1526}
1527
1528int ssl_sock_sctl_parse_cbk(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *parse_arg)
1529{
1530 return 1;
1531}
1532
William Lallemanda17f4112019-10-10 15:16:44 +02001533static int ssl_sock_load_sctl(SSL_CTX *ctx, struct buffer *sctl)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001534{
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001535 int ret = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001536
William Lallemanda17f4112019-10-10 15:16:44 +02001537 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 +01001538 goto out;
1539
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001540 SSL_CTX_set_ex_data(ctx, sctl_ex_index, sctl);
1541
1542 ret = 0;
1543
1544out:
1545 return ret;
1546}
1547
1548#endif
1549
Emeric Brune1f38db2012-09-03 20:36:47 +02001550void ssl_sock_infocbk(const SSL *ssl, int where, int ret)
1551{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001552 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001553 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001554 BIO *write_bio;
Willy Tarreau622317d2015-02-27 16:36:16 +01001555 (void)ret; /* shut gcc stupid warning */
Emeric Brune1f38db2012-09-03 20:36:47 +02001556
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001557#ifndef SSL_OP_NO_RENEGOTIATION
1558 /* Please note that BoringSSL defines this macro to zero so don't
1559 * change this to #if and do not assign a default value to this macro!
1560 */
Emeric Brune1f38db2012-09-03 20:36:47 +02001561 if (where & SSL_CB_HANDSHAKE_START) {
1562 /* Disable renegotiation (CVE-2009-3555) */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01001563 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 +02001564 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01001565 conn->err_code = CO_ER_SSL_RENEG;
1566 }
Emeric Brune1f38db2012-09-03 20:36:47 +02001567 }
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001568#endif
Emeric Brund8b2bb52014-01-28 15:43:53 +01001569
1570 if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001571 if (!(ctx->xprt_st & SSL_SOCK_ST_FL_16K_WBFSIZE)) {
Emeric Brund8b2bb52014-01-28 15:43:53 +01001572 /* Long certificate chains optimz
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001573 If write and read bios are different, we
Emeric Brund8b2bb52014-01-28 15:43:53 +01001574 consider that the buffering was activated,
1575 so we rise the output buffer size from 4k
1576 to 16k */
1577 write_bio = SSL_get_wbio(ssl);
1578 if (write_bio != SSL_get_rbio(ssl)) {
1579 BIO_set_write_buffer_size(write_bio, 16384);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001580 ctx->xprt_st |= SSL_SOCK_ST_FL_16K_WBFSIZE;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001581 }
1582 }
1583 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02001584}
1585
Emeric Brune64aef12012-09-21 13:15:06 +02001586/* Callback is called for each certificate of the chain during a verify
1587 ok is set to 1 if preverify detect no error on current certificate.
1588 Returns 0 to break the handshake, 1 otherwise. */
Evan Broderbe554312013-06-27 00:05:25 -07001589int ssl_sock_bind_verifycbk(int ok, X509_STORE_CTX *x_store)
Emeric Brune64aef12012-09-21 13:15:06 +02001590{
1591 SSL *ssl;
1592 struct connection *conn;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001593 struct ssl_sock_ctx *ctx;
Emeric Brun81c00f02012-09-21 14:31:21 +02001594 int err, depth;
Emeric Brune64aef12012-09-21 13:15:06 +02001595
1596 ssl = X509_STORE_CTX_get_ex_data(x_store, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001597 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emeric Brune64aef12012-09-21 13:15:06 +02001598
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001599 ctx = conn->xprt_ctx;
1600
1601 ctx->xprt_st |= SSL_SOCK_ST_FL_VERIFY_DONE;
Emeric Brune64aef12012-09-21 13:15:06 +02001602
Emeric Brun81c00f02012-09-21 14:31:21 +02001603 if (ok) /* no errors */
1604 return ok;
1605
1606 depth = X509_STORE_CTX_get_error_depth(x_store);
1607 err = X509_STORE_CTX_get_error(x_store);
1608
1609 /* check if CA error needs to be ignored */
1610 if (depth > 0) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001611 if (!SSL_SOCK_ST_TO_CA_ERROR(ctx->xprt_st)) {
1612 ctx->xprt_st |= SSL_SOCK_CA_ERROR_TO_ST(err);
1613 ctx->xprt_st |= SSL_SOCK_CAEDEPTH_TO_ST(depth);
Emeric Brunf282a812012-09-21 15:27:54 +02001614 }
1615
Willy Tarreau731248f2020-02-04 14:02:02 +01001616 if (err < 64 && __objt_listener(conn->target)->bind_conf->ca_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001617 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001618 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001619 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001620 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001621
Willy Tarreau20879a02012-12-03 16:32:10 +01001622 conn->err_code = CO_ER_SSL_CA_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001623 return 0;
1624 }
1625
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001626 if (!SSL_SOCK_ST_TO_CRTERROR(ctx->xprt_st))
1627 ctx->xprt_st |= SSL_SOCK_CRTERROR_TO_ST(err);
Emeric Brunf282a812012-09-21 15:27:54 +02001628
Emeric Brun81c00f02012-09-21 14:31:21 +02001629 /* check if certificate error needs to be ignored */
Willy Tarreau731248f2020-02-04 14:02:02 +01001630 if (err < 64 && __objt_listener(conn->target)->bind_conf->crt_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001631 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001632 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001633 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001634 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001635
Willy Tarreau20879a02012-12-03 16:32:10 +01001636 conn->err_code = CO_ER_SSL_CRT_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001637 return 0;
Emeric Brune64aef12012-09-21 13:15:06 +02001638}
1639
Dragan Dosen9ac98092020-05-11 15:51:45 +02001640#ifdef TLS1_RT_HEARTBEAT
1641static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
1642 int content_type, const void *buf, size_t len,
1643 SSL *ssl)
1644{
1645 /* test heartbeat received (write_p is set to 0
1646 for a received record) */
1647 if ((content_type == TLS1_RT_HEARTBEAT) && (write_p == 0)) {
1648 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
1649 const unsigned char *p = buf;
1650 unsigned int payload;
1651
1652 ctx->xprt_st |= SSL_SOCK_RECV_HEARTBEAT;
1653
1654 /* Check if this is a CVE-2014-0160 exploitation attempt. */
1655 if (*p != TLS1_HB_REQUEST)
1656 return;
1657
1658 if (len < 1 + 2 + 16) /* 1 type + 2 size + 0 payload + 16 padding */
1659 goto kill_it;
1660
1661 payload = (p[1] * 256) + p[2];
1662 if (3 + payload + 16 <= len)
1663 return; /* OK no problem */
1664 kill_it:
1665 /* We have a clear heartbleed attack (CVE-2014-0160), the
1666 * advertised payload is larger than the advertised packet
1667 * length, so we have garbage in the buffer between the
1668 * payload and the end of the buffer (p+len). We can't know
1669 * if the SSL stack is patched, and we don't know if we can
1670 * safely wipe out the area between p+3+len and payload.
1671 * So instead, we prevent the response from being sent by
1672 * setting the max_send_fragment to 0 and we report an SSL
1673 * error, which will kill this connection. It will be reported
1674 * above as SSL_ERROR_SSL while an other handshake failure with
1675 * a heartbeat message will be reported as SSL_ERROR_SYSCALL.
1676 */
1677 ssl->max_send_fragment = 0;
1678 SSLerr(SSL_F_TLS1_HEARTBEAT, SSL_R_SSL_HANDSHAKE_FAILURE);
1679 }
1680}
1681#endif
1682
1683static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
1684 int content_type, const void *buf, size_t len,
1685 SSL *ssl)
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001686{
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001687 struct ssl_capture *capture;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001688 unsigned char *msg;
1689 unsigned char *end;
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001690 size_t rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001691
1692 /* This function is called for "from client" and "to server"
1693 * connections. The combination of write_p == 0 and content_type == 22
Joseph Herlant017b3da2018-11-15 09:07:59 -08001694 * is only available during "from client" connection.
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001695 */
1696
1697 /* "write_p" is set to 0 is the bytes are received messages,
1698 * otherwise it is set to 1.
1699 */
1700 if (write_p != 0)
1701 return;
1702
1703 /* content_type contains the type of message received or sent
1704 * according with the SSL/TLS protocol spec. This message is
1705 * encoded with one byte. The value 256 (two bytes) is used
1706 * for designing the SSL/TLS record layer. According with the
1707 * rfc6101, the expected message (other than 256) are:
1708 * - change_cipher_spec(20)
1709 * - alert(21)
1710 * - handshake(22)
1711 * - application_data(23)
1712 * - (255)
1713 * We are interessed by the handshake and specially the client
1714 * hello.
1715 */
1716 if (content_type != 22)
1717 return;
1718
1719 /* The message length is at least 4 bytes, containing the
1720 * message type and the message length.
1721 */
1722 if (len < 4)
1723 return;
1724
1725 /* First byte of the handshake message id the type of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001726 * message. The known types are:
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001727 * - hello_request(0)
1728 * - client_hello(1)
1729 * - server_hello(2)
1730 * - certificate(11)
1731 * - server_key_exchange (12)
1732 * - certificate_request(13)
1733 * - server_hello_done(14)
1734 * We are interested by the client hello.
1735 */
1736 msg = (unsigned char *)buf;
1737 if (msg[0] != 1)
1738 return;
1739
1740 /* Next three bytes are the length of the message. The total length
1741 * must be this decoded length + 4. If the length given as argument
1742 * is not the same, we abort the protocol dissector.
1743 */
1744 rec_len = (msg[1] << 16) + (msg[2] << 8) + msg[3];
1745 if (len < rec_len + 4)
1746 return;
1747 msg += 4;
1748 end = msg + rec_len;
1749 if (end < msg)
1750 return;
1751
1752 /* Expect 2 bytes for protocol version (1 byte for major and 1 byte
1753 * for minor, the random, composed by 4 bytes for the unix time and
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001754 * 28 bytes for unix payload. So we jump 1 + 1 + 4 + 28.
1755 */
1756 msg += 1 + 1 + 4 + 28;
1757 if (msg > end)
1758 return;
1759
1760 /* Next, is session id:
1761 * if present, we have to jump by length + 1 for the size information
1762 * if not present, we have to jump by 1 only
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001763 */
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001764 if (msg[0] > 0)
1765 msg += msg[0];
1766 msg += 1;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001767 if (msg > end)
1768 return;
1769
1770 /* Next two bytes are the ciphersuite length. */
1771 if (msg + 2 > end)
1772 return;
1773 rec_len = (msg[0] << 8) + msg[1];
1774 msg += 2;
1775 if (msg + rec_len > end || msg + rec_len < msg)
1776 return;
1777
Willy Tarreaub454e902021-03-22 15:09:41 +01001778 capture = pool_alloc(pool_head_ssl_capture);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001779 if (!capture)
1780 return;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001781 /* Compute the xxh64 of the ciphersuite. */
1782 capture->xxh64 = XXH64(msg, rec_len, 0);
1783
1784 /* Capture the ciphersuite. */
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001785 capture->ciphersuite_len = (global_ssl.capture_cipherlist < rec_len) ?
1786 global_ssl.capture_cipherlist : rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001787 memcpy(capture->ciphersuite, msg, capture->ciphersuite_len);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001788
1789 SSL_set_ex_data(ssl, ssl_capture_ptr_index, capture);
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001790}
William Lallemand7d42ef52020-07-06 11:41:30 +02001791
1792
William Lallemandca5cf0a2021-06-09 16:46:12 +02001793#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02001794static void ssl_init_keylog(struct connection *conn, int write_p, int version,
1795 int content_type, const void *buf, size_t len,
1796 SSL *ssl)
1797{
1798 struct ssl_keylog *keylog;
1799
1800 if (SSL_get_ex_data(ssl, ssl_keylog_index))
1801 return;
1802
Willy Tarreauf208ac02021-03-22 21:10:12 +01001803 keylog = pool_zalloc(pool_head_ssl_keylog);
William Lallemand7d42ef52020-07-06 11:41:30 +02001804 if (!keylog)
1805 return;
1806
William Lallemand7d42ef52020-07-06 11:41:30 +02001807 if (!SSL_set_ex_data(ssl, ssl_keylog_index, keylog)) {
1808 pool_free(pool_head_ssl_keylog, keylog);
1809 return;
1810 }
1811}
1812#endif
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001813
Emeric Brun29f037d2014-04-25 19:05:36 +02001814/* Callback is called for ssl protocol analyse */
1815void ssl_sock_msgcbk(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
1816{
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001817 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
1818 struct ssl_sock_msg_callback *cbk;
1819
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001820 /* Try to call all callback functions that were registered by using
1821 * ssl_sock_register_msg_callback().
1822 */
1823 list_for_each_entry(cbk, &ssl_sock_msg_callbacks, list) {
1824 cbk->func(conn, write_p, version, content_type, buf, len, ssl);
1825 }
Emeric Brun29f037d2014-04-25 19:05:36 +02001826}
1827
Bernard Spil13c53f82018-02-15 13:34:58 +01001828#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchardc7566002018-11-20 23:33:50 +01001829static int ssl_sock_srv_select_protos(SSL *s, unsigned char **out, unsigned char *outlen,
1830 const unsigned char *in, unsigned int inlen,
1831 void *arg)
1832{
1833 struct server *srv = arg;
1834
1835 if (SSL_select_next_proto(out, outlen, in, inlen, (unsigned char *)srv->ssl_ctx.npn_str,
1836 srv->ssl_ctx.npn_len) == OPENSSL_NPN_NEGOTIATED)
1837 return SSL_TLSEXT_ERR_OK;
1838 return SSL_TLSEXT_ERR_NOACK;
1839}
1840#endif
1841
1842#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001843/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001844 * negotiable protocols for NPN.
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001845 */
1846static int ssl_sock_advertise_npn_protos(SSL *s, const unsigned char **data,
1847 unsigned int *len, void *arg)
1848{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001849 struct ssl_bind_conf *conf = arg;
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001850
1851 *data = (const unsigned char *)conf->npn_str;
1852 *len = conf->npn_len;
1853 return SSL_TLSEXT_ERR_OK;
1854}
1855#endif
1856
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001857#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Willy Tarreauab861d32013-04-02 02:30:41 +02001858/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001859 * negotiable protocols for ALPN.
Willy Tarreauab861d32013-04-02 02:30:41 +02001860 */
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001861static int ssl_sock_advertise_alpn_protos(SSL *s, const unsigned char **out,
1862 unsigned char *outlen,
1863 const unsigned char *server,
1864 unsigned int server_len, void *arg)
Willy Tarreauab861d32013-04-02 02:30:41 +02001865{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001866 struct ssl_bind_conf *conf = arg;
Willy Tarreauab861d32013-04-02 02:30:41 +02001867
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001868 if (SSL_select_next_proto((unsigned char**) out, outlen, (const unsigned char *)conf->alpn_str,
1869 conf->alpn_len, server, server_len) != OPENSSL_NPN_NEGOTIATED) {
1870 return SSL_TLSEXT_ERR_NOACK;
1871 }
Willy Tarreauab861d32013-04-02 02:30:41 +02001872 return SSL_TLSEXT_ERR_OK;
1873}
1874#endif
1875
Willy Tarreauc8ad3be2015-06-17 15:48:26 +02001876#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001877#ifndef SSL_NO_GENERATE_CERTIFICATES
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02001878
Shimi Gersneradabbfe2020-08-23 13:58:13 +03001879/* Configure a DNS SAN extenion on a certificate. */
1880int ssl_sock_add_san_ext(X509V3_CTX* ctx, X509* cert, const char *servername) {
1881 int failure = 0;
1882 X509_EXTENSION *san_ext = NULL;
1883 CONF *conf = NULL;
1884 struct buffer *san_name = get_trash_chunk();
1885
1886 conf = NCONF_new(NULL);
1887 if (!conf) {
1888 failure = 1;
1889 goto cleanup;
1890 }
1891
1892 /* Build an extension based on the DNS entry above */
1893 chunk_appendf(san_name, "DNS:%s", servername);
1894 san_ext = X509V3_EXT_nconf_nid(conf, ctx, NID_subject_alt_name, san_name->area);
1895 if (!san_ext) {
1896 failure = 1;
1897 goto cleanup;
1898 }
1899
1900 /* Add the extension */
1901 if (!X509_add_ext(cert, san_ext, -1 /* Add to end */)) {
1902 failure = 1;
1903 goto cleanup;
1904 }
1905
1906 /* Success */
1907 failure = 0;
1908
1909cleanup:
1910 if (NULL != san_ext) X509_EXTENSION_free(san_ext);
1911 if (NULL != conf) NCONF_free(conf);
1912
1913 return failure;
1914}
1915
Christopher Faulet30548802015-06-11 13:39:32 +02001916/* Create a X509 certificate with the specified servername and serial. This
1917 * function returns a SSL_CTX object or NULL if an error occurs. */
Christopher Faulet7969a332015-10-09 11:15:03 +02001918static SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01001919ssl_sock_do_create_cert(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001920{
Shimi Gersner5846c492020-08-23 13:58:12 +03001921 X509 *cacert = bind_conf->ca_sign_ckch->cert;
1922 EVP_PKEY *capkey = bind_conf->ca_sign_ckch->key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001923 SSL_CTX *ssl_ctx = NULL;
1924 X509 *newcrt = NULL;
1925 EVP_PKEY *pkey = NULL;
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001926 SSL *tmp_ssl = NULL;
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001927 CONF *ctmp = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001928 X509_NAME *name;
1929 const EVP_MD *digest;
1930 X509V3_CTX ctx;
1931 unsigned int i;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001932 int key_type;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001933
Christopher Faulet48a83322017-07-28 16:56:09 +02001934 /* Get the private key of the default certificate and use it */
Ilya Shipitsinaf204882020-12-19 03:12:12 +05001935#ifdef HAVE_SSL_CTX_get0_privatekey
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001936 pkey = SSL_CTX_get0_privatekey(bind_conf->default_ctx);
1937#else
1938 tmp_ssl = SSL_new(bind_conf->default_ctx);
1939 if (tmp_ssl)
1940 pkey = SSL_get_privatekey(tmp_ssl);
1941#endif
1942 if (!pkey)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001943 goto mkcert_error;
1944
1945 /* Create the certificate */
1946 if (!(newcrt = X509_new()))
1947 goto mkcert_error;
1948
1949 /* Set version number for the certificate (X509v3) and the serial
1950 * number */
1951 if (X509_set_version(newcrt, 2L) != 1)
1952 goto mkcert_error;
Willy Tarreau1db42732021-04-06 11:44:07 +02001953 ASN1_INTEGER_set(X509_get_serialNumber(newcrt), _HA_ATOMIC_ADD_FETCH(&ssl_ctx_serial, 1));
Christopher Faulet31af49d2015-06-09 17:29:50 +02001954
1955 /* Set duration for the certificate */
Rosen Penev68185952018-12-14 08:47:02 -08001956 if (!X509_gmtime_adj(X509_getm_notBefore(newcrt), (long)-60*60*24) ||
1957 !X509_gmtime_adj(X509_getm_notAfter(newcrt),(long)60*60*24*365))
Christopher Faulet31af49d2015-06-09 17:29:50 +02001958 goto mkcert_error;
1959
1960 /* set public key in the certificate */
1961 if (X509_set_pubkey(newcrt, pkey) != 1)
1962 goto mkcert_error;
1963
1964 /* Set issuer name from the CA */
1965 if (!(name = X509_get_subject_name(cacert)))
1966 goto mkcert_error;
1967 if (X509_set_issuer_name(newcrt, name) != 1)
1968 goto mkcert_error;
1969
1970 /* Set the subject name using the same, but the CN */
1971 name = X509_NAME_dup(name);
1972 if (X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC,
1973 (const unsigned char *)servername,
1974 -1, -1, 0) != 1) {
1975 X509_NAME_free(name);
1976 goto mkcert_error;
1977 }
1978 if (X509_set_subject_name(newcrt, name) != 1) {
1979 X509_NAME_free(name);
1980 goto mkcert_error;
1981 }
1982 X509_NAME_free(name);
1983
1984 /* Add x509v3 extensions as specified */
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001985 ctmp = NCONF_new(NULL);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001986 X509V3_set_ctx(&ctx, cacert, newcrt, NULL, NULL, 0);
1987 for (i = 0; i < X509V3_EXT_SIZE; i++) {
1988 X509_EXTENSION *ext;
1989
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001990 if (!(ext = X509V3_EXT_nconf(ctmp, &ctx, x509v3_ext_names[i], x509v3_ext_values[i])))
Christopher Faulet31af49d2015-06-09 17:29:50 +02001991 goto mkcert_error;
1992 if (!X509_add_ext(newcrt, ext, -1)) {
1993 X509_EXTENSION_free(ext);
1994 goto mkcert_error;
1995 }
1996 X509_EXTENSION_free(ext);
1997 }
1998
Shimi Gersneradabbfe2020-08-23 13:58:13 +03001999 /* Add SAN extension */
2000 if (ssl_sock_add_san_ext(&ctx, newcrt, servername)) {
2001 goto mkcert_error;
2002 }
2003
Christopher Faulet31af49d2015-06-09 17:29:50 +02002004 /* Sign the certificate with the CA private key */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002005
2006 key_type = EVP_PKEY_base_id(capkey);
2007
2008 if (key_type == EVP_PKEY_DSA)
2009 digest = EVP_sha1();
2010 else if (key_type == EVP_PKEY_RSA)
Christopher Faulet31af49d2015-06-09 17:29:50 +02002011 digest = EVP_sha256();
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002012 else if (key_type == EVP_PKEY_EC)
Christopher Faulet7969a332015-10-09 11:15:03 +02002013 digest = EVP_sha256();
2014 else {
Ilya Shipitsinec36c912021-01-07 11:57:42 +05002015#ifdef ASN1_PKEY_CTRL_DEFAULT_MD_NID
Christopher Faulet7969a332015-10-09 11:15:03 +02002016 int nid;
2017
2018 if (EVP_PKEY_get_default_digest_nid(capkey, &nid) <= 0)
2019 goto mkcert_error;
2020 if (!(digest = EVP_get_digestbynid(nid)))
2021 goto mkcert_error;
Christopher Faulete7db2162015-10-19 13:59:24 +02002022#else
2023 goto mkcert_error;
2024#endif
Christopher Faulet7969a332015-10-09 11:15:03 +02002025 }
2026
Christopher Faulet31af49d2015-06-09 17:29:50 +02002027 if (!(X509_sign(newcrt, capkey, digest)))
2028 goto mkcert_error;
2029
2030 /* Create and set the new SSL_CTX */
2031 if (!(ssl_ctx = SSL_CTX_new(SSLv23_server_method())))
2032 goto mkcert_error;
2033 if (!SSL_CTX_use_PrivateKey(ssl_ctx, pkey))
2034 goto mkcert_error;
2035 if (!SSL_CTX_use_certificate(ssl_ctx, newcrt))
2036 goto mkcert_error;
2037 if (!SSL_CTX_check_private_key(ssl_ctx))
2038 goto mkcert_error;
2039
Shimi Gersner5846c492020-08-23 13:58:12 +03002040 /* Build chaining the CA cert and the rest of the chain, keep these order */
2041#if defined(SSL_CTX_add1_chain_cert)
2042 if (!SSL_CTX_add1_chain_cert(ssl_ctx, bind_conf->ca_sign_ckch->cert)) {
2043 goto mkcert_error;
2044 }
2045
2046 if (bind_conf->ca_sign_ckch->chain) {
2047 for (i = 0; i < sk_X509_num(bind_conf->ca_sign_ckch->chain); i++) {
2048 X509 *chain_cert = sk_X509_value(bind_conf->ca_sign_ckch->chain, i);
2049 if (!SSL_CTX_add1_chain_cert(ssl_ctx, chain_cert)) {
2050 goto mkcert_error;
2051 }
2052 }
2053 }
2054#endif
2055
Christopher Faulet31af49d2015-06-09 17:29:50 +02002056 if (newcrt) X509_free(newcrt);
Christopher Faulet7969a332015-10-09 11:15:03 +02002057
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002058#ifndef OPENSSL_NO_DH
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002059 SSL_CTX_set_tmp_dh_callback(ssl_ctx, ssl_get_tmp_dh);
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002060#endif
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002061#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
2062 {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002063 const char *ecdhe = (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe : ECDHE_DEFAULT_CURVE);
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002064 EC_KEY *ecc;
2065 int nid;
2066
2067 if ((nid = OBJ_sn2nid(ecdhe)) == NID_undef)
2068 goto end;
2069 if (!(ecc = EC_KEY_new_by_curve_name(nid)))
2070 goto end;
2071 SSL_CTX_set_tmp_ecdh(ssl_ctx, ecc);
2072 EC_KEY_free(ecc);
2073 }
2074#endif
2075 end:
Christopher Faulet31af49d2015-06-09 17:29:50 +02002076 return ssl_ctx;
2077
2078 mkcert_error:
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02002079 if (ctmp) NCONF_free(ctmp);
Emmanuel Hocdet15969292017-08-11 10:56:00 +02002080 if (tmp_ssl) SSL_free(tmp_ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002081 if (ssl_ctx) SSL_CTX_free(ssl_ctx);
2082 if (newcrt) X509_free(newcrt);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002083 return NULL;
2084}
2085
Christopher Faulet7969a332015-10-09 11:15:03 +02002086SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002087ssl_sock_create_cert(struct connection *conn, const char *servername, unsigned int key)
Christopher Faulet7969a332015-10-09 11:15:03 +02002088{
Willy Tarreau07d94e42018-09-20 10:57:52 +02002089 struct bind_conf *bind_conf = __objt_listener(conn->target)->bind_conf;
Olivier Houchard66ab4982019-02-26 18:37:15 +01002090 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002091
Olivier Houchard66ab4982019-02-26 18:37:15 +01002092 return ssl_sock_do_create_cert(servername, bind_conf, ctx->ssl);
Christopher Faulet7969a332015-10-09 11:15:03 +02002093}
2094
Christopher Faulet30548802015-06-11 13:39:32 +02002095/* Do a lookup for a certificate in the LRU cache used to store generated
Emeric Brun821bb9b2017-06-15 16:37:39 +02002096 * certificates and immediately assign it to the SSL session if not null. */
Christopher Faulet30548802015-06-11 13:39:32 +02002097SSL_CTX *
Emeric Brun821bb9b2017-06-15 16:37:39 +02002098ssl_sock_assign_generated_cert(unsigned int key, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet30548802015-06-11 13:39:32 +02002099{
2100 struct lru64 *lru = NULL;
2101
2102 if (ssl_ctx_lru_tree) {
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002103 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002104 lru = lru64_lookup(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002105 if (lru && lru->domain) {
2106 if (ssl)
2107 SSL_set_SSL_CTX(ssl, (SSL_CTX *)lru->data);
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002108 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002109 return (SSL_CTX *)lru->data;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002110 }
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002111 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002112 }
2113 return NULL;
2114}
2115
Emeric Brun821bb9b2017-06-15 16:37:39 +02002116/* Same as <ssl_sock_assign_generated_cert> but without SSL session. This
2117 * function is not thread-safe, it should only be used to check if a certificate
2118 * exists in the lru cache (with no warranty it will not be removed by another
2119 * thread). It is kept for backward compatibility. */
2120SSL_CTX *
2121ssl_sock_get_generated_cert(unsigned int key, struct bind_conf *bind_conf)
2122{
2123 return ssl_sock_assign_generated_cert(key, bind_conf, NULL);
2124}
2125
Christopher Fauletd2cab922015-07-28 16:03:47 +02002126/* Set a certificate int the LRU cache used to store generated
2127 * certificate. Return 0 on success, otherwise -1 */
2128int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002129ssl_sock_set_generated_cert(SSL_CTX *ssl_ctx, unsigned int key, struct bind_conf *bind_conf)
Christopher Faulet30548802015-06-11 13:39:32 +02002130{
2131 struct lru64 *lru = NULL;
2132
2133 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002134 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002135 lru = lru64_get(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002136 if (!lru) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002137 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002138 return -1;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002139 }
Christopher Faulet30548802015-06-11 13:39:32 +02002140 if (lru->domain && lru->data)
2141 lru->free((SSL_CTX *)lru->data);
Shimi Gersner5846c492020-08-23 13:58:12 +03002142 lru64_commit(lru, ssl_ctx, bind_conf->ca_sign_ckch->cert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002143 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002144 return 0;
Christopher Faulet30548802015-06-11 13:39:32 +02002145 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02002146 return -1;
Christopher Faulet30548802015-06-11 13:39:32 +02002147}
2148
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002149/* Compute the key of the certificate. */
Christopher Faulet30548802015-06-11 13:39:32 +02002150unsigned int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002151ssl_sock_generated_cert_key(const void *data, size_t len)
Christopher Faulet30548802015-06-11 13:39:32 +02002152{
2153 return XXH32(data, len, ssl_ctx_lru_seed);
2154}
2155
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002156/* Generate a cert and immediately assign it to the SSL session so that the cert's
2157 * refcount is maintained regardless of the cert's presence in the LRU cache.
2158 */
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002159static int
Christopher Faulet7969a332015-10-09 11:15:03 +02002160ssl_sock_generate_certificate(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02002161{
Shimi Gersner5846c492020-08-23 13:58:12 +03002162 X509 *cacert = bind_conf->ca_sign_ckch->cert;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002163 SSL_CTX *ssl_ctx = NULL;
2164 struct lru64 *lru = NULL;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002165 unsigned int key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002166
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002167 key = ssl_sock_generated_cert_key(servername, strlen(servername));
Christopher Faulet31af49d2015-06-09 17:29:50 +02002168 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002169 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002170 lru = lru64_get(key, ssl_ctx_lru_tree, cacert, 0);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002171 if (lru && lru->domain)
2172 ssl_ctx = (SSL_CTX *)lru->data;
Christopher Fauletd2cab922015-07-28 16:03:47 +02002173 if (!ssl_ctx && lru) {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002174 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002175 lru64_commit(lru, ssl_ctx, cacert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002176 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002177 SSL_set_SSL_CTX(ssl, ssl_ctx);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002178 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002179 return 1;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002180 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002181 else {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002182 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002183 SSL_set_SSL_CTX(ssl, ssl_ctx);
2184 /* No LRU cache, this CTX will be released as soon as the session dies */
2185 SSL_CTX_free(ssl_ctx);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002186 return 1;
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002187 }
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002188 return 0;
2189}
2190static int
2191ssl_sock_generate_certificate_from_conn(struct bind_conf *bind_conf, SSL *ssl)
2192{
2193 unsigned int key;
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002194 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002195
Willy Tarreauf5bdb642019-07-17 11:29:32 +02002196 if (conn_get_dst(conn)) {
Willy Tarreau085a1512019-07-17 14:47:35 +02002197 key = ssl_sock_generated_cert_key(conn->dst, get_addr_len(conn->dst));
Emeric Brun821bb9b2017-06-15 16:37:39 +02002198 if (ssl_sock_assign_generated_cert(key, bind_conf, ssl))
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002199 return 1;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002200 }
2201 return 0;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002202}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002203#endif /* !defined SSL_NO_GENERATE_CERTIFICATES */
Christopher Faulet31af49d2015-06-09 17:29:50 +02002204
Willy Tarreau9a1ab082019-05-09 13:26:41 +02002205#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002206
2207static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002208{
Emmanuel Hocdet23877ab2017-07-12 12:53:02 +02002209#if SSL_OP_NO_SSLv3
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002210 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, SSLv3_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002211 : SSL_CTX_set_ssl_version(ctx, SSLv3_client_method());
2212#endif
2213}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002214static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2215 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002216 : SSL_CTX_set_ssl_version(ctx, TLSv1_client_method());
2217}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002218static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002219#if SSL_OP_NO_TLSv1_1
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002220 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002221 : SSL_CTX_set_ssl_version(ctx, TLSv1_1_client_method());
2222#endif
2223}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002224static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002225#if SSL_OP_NO_TLSv1_2
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002226 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_2_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002227 : SSL_CTX_set_ssl_version(ctx, TLSv1_2_client_method());
2228#endif
2229}
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002230/* TLSv1.2 is the last supported version in this context. */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002231static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {}
2232/* Unusable in this context. */
2233static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {}
2234static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {}
2235static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {}
2236static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {}
2237static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {}
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002238#else /* openssl >= 1.1.0 */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002239
2240static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c) {
2241 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, SSL3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002242 : SSL_CTX_set_min_proto_version(ctx, SSL3_VERSION);
2243}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002244static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {
2245 c == SET_MAX ? SSL_set_max_proto_version(ssl, SSL3_VERSION)
2246 : SSL_set_min_proto_version(ssl, SSL3_VERSION);
2247}
2248static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2249 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002250 : SSL_CTX_set_min_proto_version(ctx, TLS1_VERSION);
2251}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002252static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {
2253 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_VERSION)
2254 : SSL_set_min_proto_version(ssl, TLS1_VERSION);
2255}
2256static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
2257 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002258 : SSL_CTX_set_min_proto_version(ctx, TLS1_1_VERSION);
2259}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002260static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {
2261 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_1_VERSION)
2262 : SSL_set_min_proto_version(ssl, TLS1_1_VERSION);
2263}
2264static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
2265 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002266 : SSL_CTX_set_min_proto_version(ctx, TLS1_2_VERSION);
2267}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002268static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {
2269 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_2_VERSION)
2270 : SSL_set_min_proto_version(ssl, TLS1_2_VERSION);
2271}
2272static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {
William Lallemande8a8aa42021-06-02 16:09:11 +02002273#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002274 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002275 : SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION);
2276#endif
2277}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002278static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {
William Lallemande8a8aa42021-06-02 16:09:11 +02002279#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002280 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_3_VERSION)
2281 : SSL_set_min_proto_version(ssl, TLS1_3_VERSION);
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002282#endif
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002283}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002284#endif
2285static void ctx_set_None_func(SSL_CTX *ctx, set_context_func c) { }
2286static void ssl_set_None_func(SSL *ssl, set_context_func c) { }
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002287
William Lallemand7fd8b452020-05-07 15:20:43 +02002288struct methodVersions methodVersions[] = {
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002289 {0, 0, ctx_set_None_func, ssl_set_None_func, "NONE"}, /* CONF_TLSV_NONE */
2290 {SSL_OP_NO_SSLv3, MC_SSL_O_NO_SSLV3, ctx_set_SSLv3_func, ssl_set_SSLv3_func, "SSLv3"}, /* CONF_SSLV3 */
2291 {SSL_OP_NO_TLSv1, MC_SSL_O_NO_TLSV10, ctx_set_TLSv10_func, ssl_set_TLSv10_func, "TLSv1.0"}, /* CONF_TLSV10 */
2292 {SSL_OP_NO_TLSv1_1, MC_SSL_O_NO_TLSV11, ctx_set_TLSv11_func, ssl_set_TLSv11_func, "TLSv1.1"}, /* CONF_TLSV11 */
2293 {SSL_OP_NO_TLSv1_2, MC_SSL_O_NO_TLSV12, ctx_set_TLSv12_func, ssl_set_TLSv12_func, "TLSv1.2"}, /* CONF_TLSV12 */
2294 {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 +02002295};
2296
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002297static void ssl_sock_switchctx_set(SSL *ssl, SSL_CTX *ctx)
2298{
2299 SSL_set_verify(ssl, SSL_CTX_get_verify_mode(ctx), ssl_sock_bind_verifycbk);
2300 SSL_set_client_CA_list(ssl, SSL_dup_CA_list(SSL_CTX_get_client_CA_list(ctx)));
2301 SSL_set_SSL_CTX(ssl, ctx);
2302}
2303
Ilya Shipitsin1fc44d42021-01-23 00:09:14 +05002304#ifdef HAVE_SSL_CLIENT_HELLO_CB
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002305
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002306int ssl_sock_switchctx_err_cbk(SSL *ssl, int *al, void *priv)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002307{
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002308 struct bind_conf *s = priv;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002309 (void)al; /* shut gcc stupid warning */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002310
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002311 if (SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name) || s->generate_certs)
2312 return SSL_TLSEXT_ERR_OK;
2313 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002314}
2315
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002316#ifdef OPENSSL_IS_BORINGSSL
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002317int ssl_sock_switchctx_cbk(const struct ssl_early_callback_ctx *ctx)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002318{
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002319 SSL *ssl = ctx->ssl;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002320#else
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002321int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *arg)
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002322{
2323#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002324 struct connection *conn;
2325 struct bind_conf *s;
2326 const uint8_t *extension_data;
2327 size_t extension_len;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002328 int has_rsa_sig = 0, has_ecdsa_sig = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002329
2330 char *wildp = NULL;
2331 const uint8_t *servername;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002332 size_t servername_len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002333 struct ebmb_node *node, *n, *node_ecdsa = NULL, *node_rsa = NULL, *node_anonymous = NULL;
Olivier Houchardc2aae742017-09-22 18:26:28 +02002334 int allow_early = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002335 int i;
2336
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002337 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Willy Tarreaua8825522018-10-15 13:20:07 +02002338 s = __objt_listener(conn->target)->bind_conf;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002339
Frédéric Lécaillee9473c72020-11-23 15:37:11 +01002340#ifdef USE_QUIC
2341 if (conn->qc) {
2342 /* Look for the QUIC transport parameters. */
2343#ifdef OPENSSL_IS_BORINGSSL
2344 if (!SSL_early_callback_ctx_extension_get(ctx, TLS_EXTENSION_QUIC_TRANSPORT_PARAMETERS,
2345 &extension_data, &extension_len))
2346#else
2347 if (!SSL_client_hello_get0_ext(ssl, TLS_EXTENSION_QUIC_TRANSPORT_PARAMETERS,
2348 &extension_data, &extension_len))
2349#endif
2350 goto abort;
2351
2352 if (!quic_transport_params_store(conn->qc, 0, extension_data,
2353 extension_data + extension_len))
2354 goto abort;
2355 }
2356#endif
2357
Olivier Houchard9679ac92017-10-27 14:58:08 +02002358 if (s->ssl_conf.early_data)
Olivier Houchardc2aae742017-09-22 18:26:28 +02002359 allow_early = 1;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002360#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002361 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_server_name,
2362 &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002363#else
2364 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_server_name, &extension_data, &extension_len)) {
2365#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002366 /*
2367 * The server_name extension was given too much extensibility when it
2368 * was written, so parsing the normal case is a bit complex.
2369 */
2370 size_t len;
2371 if (extension_len <= 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002372 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002373 /* Extract the length of the supplied list of names. */
2374 len = (*extension_data++) << 8;
2375 len |= *extension_data++;
2376 if (len + 2 != extension_len)
2377 goto abort;
2378 /*
2379 * The list in practice only has a single element, so we only consider
2380 * the first one.
2381 */
2382 if (len == 0 || *extension_data++ != TLSEXT_NAMETYPE_host_name)
2383 goto abort;
2384 extension_len = len - 1;
2385 /* Now we can finally pull out the byte array with the actual hostname. */
2386 if (extension_len <= 2)
2387 goto abort;
2388 len = (*extension_data++) << 8;
2389 len |= *extension_data++;
2390 if (len == 0 || len + 2 > extension_len || len > TLSEXT_MAXLEN_host_name
2391 || memchr(extension_data, 0, len) != NULL)
2392 goto abort;
2393 servername = extension_data;
2394 servername_len = len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002395 } else {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002396#if (!defined SSL_NO_GENERATE_CERTIFICATES)
2397 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02002398 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002399 }
2400#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002401 /* without SNI extension, is the default_ctx (need SSL_TLSEXT_ERR_NOACK) */
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002402 if (!s->strict_sni) {
William Lallemand21724f02019-11-04 17:56:13 +01002403 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002404 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002405 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Olivier Houchardc2aae742017-09-22 18:26:28 +02002406 goto allow_early;
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002407 }
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002408 goto abort;
2409 }
2410
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05002411 /* extract/check clientHello information */
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002412#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002413 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002414#else
2415 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
2416#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002417 uint8_t sign;
2418 size_t len;
2419 if (extension_len < 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002420 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002421 len = (*extension_data++) << 8;
2422 len |= *extension_data++;
2423 if (len + 2 != extension_len)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002424 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002425 if (len % 2 != 0)
2426 goto abort;
2427 for (; len > 0; len -= 2) {
2428 extension_data++; /* hash */
2429 sign = *extension_data++;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002430 switch (sign) {
2431 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002432 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002433 break;
2434 case TLSEXT_signature_ecdsa:
2435 has_ecdsa_sig = 1;
2436 break;
2437 default:
2438 continue;
2439 }
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002440 if (has_ecdsa_sig && has_rsa_sig)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002441 break;
2442 }
2443 } else {
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002444 /* without TLSEXT_TYPE_signature_algorithms extension (< TLSv1.2) */
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002445 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002446 }
2447 if (has_ecdsa_sig) { /* in very rare case: has ecdsa sign but not a ECDSA cipher */
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002448 const SSL_CIPHER *cipher;
2449 size_t len;
2450 const uint8_t *cipher_suites;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002451 has_ecdsa_sig = 0;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002452#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002453 len = ctx->cipher_suites_len;
2454 cipher_suites = ctx->cipher_suites;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002455#else
2456 len = SSL_client_hello_get0_ciphers(ssl, &cipher_suites);
2457#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002458 if (len % 2 != 0)
2459 goto abort;
2460 for (; len != 0; len -= 2, cipher_suites += 2) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002461#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002462 uint16_t cipher_suite = (cipher_suites[0] << 8) | cipher_suites[1];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002463 cipher = SSL_get_cipher_by_value(cipher_suite);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002464#else
2465 cipher = SSL_CIPHER_find(ssl, cipher_suites);
2466#endif
Emmanuel Hocdet019f9b12017-10-02 17:12:06 +02002467 if (cipher && SSL_CIPHER_get_auth_nid(cipher) == NID_auth_ecdsa) {
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002468 has_ecdsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002469 break;
2470 }
2471 }
2472 }
2473
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002474 for (i = 0; i < trash.size && i < servername_len; i++) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002475 trash.area[i] = tolower(servername[i]);
2476 if (!wildp && (trash.area[i] == '.'))
2477 wildp = &trash.area[i];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002478 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002479 trash.area[i] = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002480
William Lallemand150bfa82019-09-19 17:12:49 +02002481 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002482
William Lallemand94bd3192020-08-14 14:43:35 +02002483 /* Look for an ECDSA, RSA and DSA certificate, first in the single
2484 * name and if not found in the wildcard */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002485 for (i = 0; i < 2; i++) {
2486 if (i == 0) /* lookup in full qualified names */
2487 node = ebst_lookup(&s->sni_ctx, trash.area);
William Lallemand30f9e092020-08-17 14:31:19 +02002488 else if (i == 1 && wildp) /* lookup in wildcards names */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002489 node = ebst_lookup(&s->sni_w_ctx, wildp);
2490 else
2491 break;
William Lallemand30f9e092020-08-17 14:31:19 +02002492
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002493 for (n = node; n; n = ebmb_next_dup(n)) {
William Lallemand30f9e092020-08-17 14:31:19 +02002494
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002495 /* lookup a not neg filter */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002496 if (!container_of(n, struct sni_ctx, name)->neg) {
William Lallemand30f9e092020-08-17 14:31:19 +02002497 struct sni_ctx *sni, *sni_tmp;
2498 int skip = 0;
2499
2500 if (i == 1 && wildp) { /* wildcard */
2501 /* If this is a wildcard, look for an exclusion on the same crt-list line */
2502 sni = container_of(n, struct sni_ctx, name);
2503 list_for_each_entry(sni_tmp, &sni->ckch_inst->sni_ctx, by_ckch_inst) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01002504 if (sni_tmp->neg && (strcmp((const char *)sni_tmp->name.key, trash.area) == 0)) {
William Lallemand30f9e092020-08-17 14:31:19 +02002505 skip = 1;
2506 break;
2507 }
2508 }
2509 if (skip)
2510 continue;
2511 }
2512
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002513 switch(container_of(n, struct sni_ctx, name)->kinfo.sig) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002514 case TLSEXT_signature_ecdsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002515 if (!node_ecdsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002516 node_ecdsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002517 break;
2518 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002519 if (!node_rsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002520 node_rsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002521 break;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002522 default: /* TLSEXT_signature_anonymous|dsa */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002523 if (!node_anonymous)
2524 node_anonymous = n;
2525 break;
2526 }
2527 }
2528 }
William Lallemand94bd3192020-08-14 14:43:35 +02002529 }
2530 /* Once the certificates are found, select them depending on what is
2531 * supported in the client and by key_signature priority order: EDSA >
2532 * RSA > DSA */
William Lallemand5b1d1f62020-08-14 15:30:13 +02002533 if (has_ecdsa_sig && node_ecdsa)
2534 node = node_ecdsa;
2535 else if (has_rsa_sig && node_rsa)
2536 node = node_rsa;
2537 else if (node_anonymous)
2538 node = node_anonymous;
2539 else if (node_ecdsa)
2540 node = node_ecdsa; /* no ecdsa signature case (< TLSv1.2) */
2541 else
2542 node = node_rsa; /* no rsa signature case (far far away) */
2543
William Lallemand94bd3192020-08-14 14:43:35 +02002544 if (node) {
2545 /* switch ctx */
2546 struct ssl_bind_conf *conf = container_of(node, struct sni_ctx, name)->conf;
2547 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
2548 if (conf) {
2549 methodVersions[conf->ssl_methods.min].ssl_set_version(ssl, SET_MIN);
2550 methodVersions[conf->ssl_methods.max].ssl_set_version(ssl, SET_MAX);
2551 if (conf->early_data)
2552 allow_early = 1;
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002553 }
William Lallemand94bd3192020-08-14 14:43:35 +02002554 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
2555 goto allow_early;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002556 }
William Lallemand150bfa82019-09-19 17:12:49 +02002557
William Lallemand02010472019-10-18 11:02:19 +02002558 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002559#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002560 if (s->generate_certs && ssl_sock_generate_certificate(trash.area, s, ssl)) {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002561 /* switch ctx done in ssl_sock_generate_certificate */
Olivier Houchardc2aae742017-09-22 18:26:28 +02002562 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002563 }
2564#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002565 if (!s->strict_sni) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002566 /* no certificate match, is the default_ctx */
William Lallemand21724f02019-11-04 17:56:13 +01002567 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002568 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002569 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
William Lallemand0f2291b2021-11-18 17:46:26 +01002570 goto allow_early;
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002571 }
William Lallemand0f2291b2021-11-18 17:46:26 +01002572
2573 /* other cases fallback on abort, if strict-sni is set but no node was found */
2574
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002575 abort:
2576 /* abort handshake (was SSL_TLSEXT_ERR_ALERT_FATAL) */
2577 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002578#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002579 return ssl_select_cert_error;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002580#else
2581 *al = SSL_AD_UNRECOGNIZED_NAME;
2582 return 0;
2583#endif
William Lallemand0f2291b2021-11-18 17:46:26 +01002584
2585allow_early:
2586#ifdef OPENSSL_IS_BORINGSSL
2587 if (allow_early)
2588 SSL_set_early_data_enabled(ssl, 1);
2589#else
2590 if (!allow_early)
2591 SSL_set_max_early_data(ssl, 0);
2592#endif
2593 return 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002594}
2595
William Lallemand0faf5262021-11-18 15:25:16 +01002596#else /* ! HAVE_SSL_CLIENT_HELLO_CB */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002597
Emeric Brunfc0421f2012-09-07 17:30:07 +02002598/* Sets the SSL ctx of <ssl> to match the advertised server name. Returns a
2599 * warning when no match is found, which implies the default (first) cert
2600 * will keep being used.
2601 */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002602static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *priv)
Emeric Brunfc0421f2012-09-07 17:30:07 +02002603{
2604 const char *servername;
2605 const char *wildp = NULL;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002606 struct ebmb_node *node, *n;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002607 struct bind_conf *s = priv;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002608 int i;
2609 (void)al; /* shut gcc stupid warning */
2610
2611 servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002612 if (!servername) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002613#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002614 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl))
2615 return SSL_TLSEXT_ERR_OK;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002616#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002617 if (s->strict_sni)
2618 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002619 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002620 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002621 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002622 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002623 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02002624
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002625 for (i = 0; i < trash.size; i++) {
Emeric Brunfc0421f2012-09-07 17:30:07 +02002626 if (!servername[i])
2627 break;
Willy Tarreauf278eec2020-07-05 21:46:32 +02002628 trash.area[i] = tolower((unsigned char)servername[i]);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002629 if (!wildp && (trash.area[i] == '.'))
2630 wildp = &trash.area[i];
Emeric Brunfc0421f2012-09-07 17:30:07 +02002631 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002632 trash.area[i] = 0;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002633
William Lallemand150bfa82019-09-19 17:12:49 +02002634 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002635 node = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002636 /* lookup in full qualified names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002637 for (n = ebst_lookup(&s->sni_ctx, trash.area); n; n = ebmb_next_dup(n)) {
2638 /* lookup a not neg filter */
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002639 if (!container_of(n, struct sni_ctx, name)->neg) {
2640 node = n;
2641 break;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002642 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002643 }
2644 if (!node && wildp) {
2645 /* lookup in wildcards names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002646 for (n = ebst_lookup(&s->sni_w_ctx, wildp); n; n = ebmb_next_dup(n)) {
2647 /* lookup a not neg filter */
2648 if (!container_of(n, struct sni_ctx, name)->neg) {
2649 node = n;
2650 break;
2651 }
2652 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002653 }
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002654 if (!node) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002655#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002656 if (s->generate_certs && ssl_sock_generate_certificate(servername, s, ssl)) {
2657 /* switch ctx done in ssl_sock_generate_certificate */
William Lallemand150bfa82019-09-19 17:12:49 +02002658 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002659 return SSL_TLSEXT_ERR_OK;
2660 }
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002661#endif
William Lallemand21724f02019-11-04 17:56:13 +01002662 if (s->strict_sni) {
2663 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002664 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002665 }
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002666 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002667 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002668 return SSL_TLSEXT_ERR_OK;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002669 }
2670
2671 /* switch ctx */
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002672 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
William Lallemand150bfa82019-09-19 17:12:49 +02002673 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emeric Brunfc0421f2012-09-07 17:30:07 +02002674 return SSL_TLSEXT_ERR_OK;
2675}
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002676#endif /* (!) OPENSSL_IS_BORINGSSL */
Emeric Brunfc0421f2012-09-07 17:30:07 +02002677#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
2678
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002679#ifndef OPENSSL_NO_DH
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002680
2681static DH * ssl_get_dh_1024(void)
2682{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002683 static unsigned char dh1024_p[]={
2684 0xFA,0xF9,0x2A,0x22,0x2A,0xA7,0x7F,0xE1,0x67,0x4E,0x53,0xF7,
2685 0x56,0x13,0xC3,0xB1,0xE3,0x29,0x6B,0x66,0x31,0x6A,0x7F,0xB3,
2686 0xC2,0x68,0x6B,0xCB,0x1D,0x57,0x39,0x1D,0x1F,0xFF,0x1C,0xC9,
2687 0xA6,0xA4,0x98,0x82,0x31,0x5D,0x25,0xFF,0x8A,0xE0,0x73,0x96,
2688 0x81,0xC8,0x83,0x79,0xC1,0x5A,0x04,0xF8,0x37,0x0D,0xA8,0x3D,
2689 0xAE,0x74,0xBC,0xDB,0xB6,0xA4,0x75,0xD9,0x71,0x8A,0xA0,0x17,
2690 0x9E,0x2D,0xC8,0xA8,0xDF,0x2C,0x5F,0x82,0x95,0xF8,0x92,0x9B,
2691 0xA7,0x33,0x5F,0x89,0x71,0xC8,0x2D,0x6B,0x18,0x86,0xC4,0x94,
2692 0x22,0xA5,0x52,0x8D,0xF6,0xF6,0xD2,0x37,0x92,0x0F,0xA5,0xCC,
2693 0xDB,0x7B,0x1D,0x3D,0xA1,0x31,0xB7,0x80,0x8F,0x0B,0x67,0x5E,
2694 0x36,0xA5,0x60,0x0C,0xF1,0x95,0x33,0x8B,
2695 };
2696 static unsigned char dh1024_g[]={
2697 0x02,
2698 };
2699
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002700 BIGNUM *p;
2701 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002702 DH *dh = DH_new();
2703 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002704 p = BN_bin2bn(dh1024_p, sizeof dh1024_p, NULL);
2705 g = BN_bin2bn(dh1024_g, sizeof dh1024_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002706
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002707 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002708 DH_free(dh);
2709 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002710 } else {
2711 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002712 }
2713 }
2714 return dh;
2715}
2716
2717static DH *ssl_get_dh_2048(void)
2718{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002719 static unsigned char dh2048_p[]={
2720 0xEC,0x86,0xF8,0x70,0xA0,0x33,0x16,0xEC,0x05,0x1A,0x73,0x59,
2721 0xCD,0x1F,0x8B,0xF8,0x29,0xE4,0xD2,0xCF,0x52,0xDD,0xC2,0x24,
2722 0x8D,0xB5,0x38,0x9A,0xFB,0x5C,0xA4,0xE4,0xB2,0xDA,0xCE,0x66,
2723 0x50,0x74,0xA6,0x85,0x4D,0x4B,0x1D,0x30,0xB8,0x2B,0xF3,0x10,
2724 0xE9,0xA7,0x2D,0x05,0x71,0xE7,0x81,0xDF,0x8B,0x59,0x52,0x3B,
2725 0x5F,0x43,0x0B,0x68,0xF1,0xDB,0x07,0xBE,0x08,0x6B,0x1B,0x23,
2726 0xEE,0x4D,0xCC,0x9E,0x0E,0x43,0xA0,0x1E,0xDF,0x43,0x8C,0xEC,
2727 0xBE,0xBE,0x90,0xB4,0x51,0x54,0xB9,0x2F,0x7B,0x64,0x76,0x4E,
2728 0x5D,0xD4,0x2E,0xAE,0xC2,0x9E,0xAE,0x51,0x43,0x59,0xC7,0x77,
2729 0x9C,0x50,0x3C,0x0E,0xED,0x73,0x04,0x5F,0xF1,0x4C,0x76,0x2A,
2730 0xD8,0xF8,0xCF,0xFC,0x34,0x40,0xD1,0xB4,0x42,0x61,0x84,0x66,
2731 0x42,0x39,0x04,0xF8,0x68,0xB2,0x62,0xD7,0x55,0xED,0x1B,0x74,
2732 0x75,0x91,0xE0,0xC5,0x69,0xC1,0x31,0x5C,0xDB,0x7B,0x44,0x2E,
2733 0xCE,0x84,0x58,0x0D,0x1E,0x66,0x0C,0xC8,0x44,0x9E,0xFD,0x40,
2734 0x08,0x67,0x5D,0xFB,0xA7,0x76,0x8F,0x00,0x11,0x87,0xE9,0x93,
2735 0xF9,0x7D,0xC4,0xBC,0x74,0x55,0x20,0xD4,0x4A,0x41,0x2F,0x43,
2736 0x42,0x1A,0xC1,0xF2,0x97,0x17,0x49,0x27,0x37,0x6B,0x2F,0x88,
2737 0x7E,0x1C,0xA0,0xA1,0x89,0x92,0x27,0xD9,0x56,0x5A,0x71,0xC1,
2738 0x56,0x37,0x7E,0x3A,0x9D,0x05,0xE7,0xEE,0x5D,0x8F,0x82,0x17,
2739 0xBC,0xE9,0xC2,0x93,0x30,0x82,0xF9,0xF4,0xC9,0xAE,0x49,0xDB,
2740 0xD0,0x54,0xB4,0xD9,0x75,0x4D,0xFA,0x06,0xB8,0xD6,0x38,0x41,
2741 0xB7,0x1F,0x77,0xF3,
2742 };
2743 static unsigned char dh2048_g[]={
2744 0x02,
2745 };
2746
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002747 BIGNUM *p;
2748 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002749 DH *dh = DH_new();
2750 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002751 p = BN_bin2bn(dh2048_p, sizeof dh2048_p, NULL);
2752 g = BN_bin2bn(dh2048_g, sizeof dh2048_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002753
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002754 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002755 DH_free(dh);
2756 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002757 } else {
2758 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002759 }
2760 }
2761 return dh;
2762}
2763
2764static DH *ssl_get_dh_4096(void)
2765{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002766 static unsigned char dh4096_p[]={
2767 0xDE,0x16,0x94,0xCD,0x99,0x58,0x07,0xF1,0xF7,0x32,0x96,0x11,
2768 0x04,0x82,0xD4,0x84,0x72,0x80,0x99,0x06,0xCA,0xF0,0xA3,0x68,
2769 0x07,0xCE,0x64,0x50,0xE7,0x74,0x45,0x20,0x80,0x5E,0x4D,0xAD,
2770 0xA5,0xB6,0xED,0xFA,0x80,0x6C,0x3B,0x35,0xC4,0x9A,0x14,0x6B,
2771 0x32,0xBB,0xFD,0x1F,0x17,0x8E,0xB7,0x1F,0xD6,0xFA,0x3F,0x7B,
2772 0xEE,0x16,0xA5,0x62,0x33,0x0D,0xED,0xBC,0x4E,0x58,0xE5,0x47,
2773 0x4D,0xE9,0xAB,0x8E,0x38,0xD3,0x6E,0x90,0x57,0xE3,0x22,0x15,
2774 0x33,0xBD,0xF6,0x43,0x45,0xB5,0x10,0x0A,0xBE,0x2C,0xB4,0x35,
2775 0xB8,0x53,0x8D,0xAD,0xFB,0xA7,0x1F,0x85,0x58,0x41,0x7A,0x79,
2776 0x20,0x68,0xB3,0xE1,0x3D,0x08,0x76,0xBF,0x86,0x0D,0x49,0xE3,
2777 0x82,0x71,0x8C,0xB4,0x8D,0x81,0x84,0xD4,0xE7,0xBE,0x91,0xDC,
2778 0x26,0x39,0x48,0x0F,0x35,0xC4,0xCA,0x65,0xE3,0x40,0x93,0x52,
2779 0x76,0x58,0x7D,0xDD,0x51,0x75,0xDC,0x69,0x61,0xBF,0x47,0x2C,
2780 0x16,0x68,0x2D,0xC9,0x29,0xD3,0xE6,0xC0,0x99,0x48,0xA0,0x9A,
2781 0xC8,0x78,0xC0,0x6D,0x81,0x67,0x12,0x61,0x3F,0x71,0xBA,0x41,
2782 0x1F,0x6C,0x89,0x44,0x03,0xBA,0x3B,0x39,0x60,0xAA,0x28,0x55,
2783 0x59,0xAE,0xB8,0xFA,0xCB,0x6F,0xA5,0x1A,0xF7,0x2B,0xDD,0x52,
2784 0x8A,0x8B,0xE2,0x71,0xA6,0x5E,0x7E,0xD8,0x2E,0x18,0xE0,0x66,
2785 0xDF,0xDD,0x22,0x21,0x99,0x52,0x73,0xA6,0x33,0x20,0x65,0x0E,
2786 0x53,0xE7,0x6B,0x9B,0xC5,0xA3,0x2F,0x97,0x65,0x76,0xD3,0x47,
2787 0x23,0x77,0x12,0xB6,0x11,0x7B,0x24,0xED,0xF1,0xEF,0xC0,0xE2,
2788 0xA3,0x7E,0x67,0x05,0x3E,0x96,0x4D,0x45,0xC2,0x18,0xD1,0x73,
2789 0x9E,0x07,0xF3,0x81,0x6E,0x52,0x63,0xF6,0x20,0x76,0xB9,0x13,
2790 0xD2,0x65,0x30,0x18,0x16,0x09,0x16,0x9E,0x8F,0xF1,0xD2,0x10,
2791 0x5A,0xD3,0xD4,0xAF,0x16,0x61,0xDA,0x55,0x2E,0x18,0x5E,0x14,
2792 0x08,0x54,0x2E,0x2A,0x25,0xA2,0x1A,0x9B,0x8B,0x32,0xA9,0xFD,
2793 0xC2,0x48,0x96,0xE1,0x80,0xCA,0xE9,0x22,0x17,0xBB,0xCE,0x3E,
2794 0x9E,0xED,0xC7,0xF1,0x1F,0xEC,0x17,0x21,0xDC,0x7B,0x82,0x48,
2795 0x8E,0xBB,0x4B,0x9D,0x5B,0x04,0x04,0xDA,0xDB,0x39,0xDF,0x01,
2796 0x40,0xC3,0xAA,0x26,0x23,0x89,0x75,0xC6,0x0B,0xD0,0xA2,0x60,
2797 0x6A,0xF1,0xCC,0x65,0x18,0x98,0x1B,0x52,0xD2,0x74,0x61,0xCC,
2798 0xBD,0x60,0xAE,0xA3,0xA0,0x66,0x6A,0x16,0x34,0x92,0x3F,0x41,
2799 0x40,0x31,0x29,0xC0,0x2C,0x63,0xB2,0x07,0x8D,0xEB,0x94,0xB8,
2800 0xE8,0x47,0x92,0x52,0x93,0x6A,0x1B,0x7E,0x1A,0x61,0xB3,0x1B,
2801 0xF0,0xD6,0x72,0x9B,0xF1,0xB0,0xAF,0xBF,0x3E,0x65,0xEF,0x23,
2802 0x1D,0x6F,0xFF,0x70,0xCD,0x8A,0x4C,0x8A,0xA0,0x72,0x9D,0xBE,
2803 0xD4,0xBB,0x24,0x47,0x4A,0x68,0xB5,0xF5,0xC6,0xD5,0x7A,0xCD,
2804 0xCA,0x06,0x41,0x07,0xAD,0xC2,0x1E,0xE6,0x54,0xA7,0xAD,0x03,
2805 0xD9,0x12,0xC1,0x9C,0x13,0xB1,0xC9,0x0A,0x43,0x8E,0x1E,0x08,
2806 0xCE,0x50,0x82,0x73,0x5F,0xA7,0x55,0x1D,0xD9,0x59,0xAC,0xB5,
2807 0xEA,0x02,0x7F,0x6C,0x5B,0x74,0x96,0x98,0x67,0x24,0xA3,0x0F,
2808 0x15,0xFC,0xA9,0x7D,0x3E,0x67,0xD1,0x70,0xF8,0x97,0xF3,0x67,
2809 0xC5,0x8C,0x88,0x44,0x08,0x02,0xC7,0x2B,
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002810 };
Remi Gacogned3a341a2015-05-29 16:26:17 +02002811 static unsigned char dh4096_g[]={
2812 0x02,
2813 };
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002814
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002815 BIGNUM *p;
2816 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002817 DH *dh = DH_new();
2818 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002819 p = BN_bin2bn(dh4096_p, sizeof dh4096_p, NULL);
2820 g = BN_bin2bn(dh4096_g, sizeof dh4096_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002821
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002822 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002823 DH_free(dh);
2824 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002825 } else {
2826 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002827 }
2828 }
2829 return dh;
2830}
2831
2832/* Returns Diffie-Hellman parameters matching the private key length
Willy Tarreauef934602016-12-22 23:12:01 +01002833 but not exceeding global_ssl.default_dh_param */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002834static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen)
2835{
2836 DH *dh = NULL;
2837 EVP_PKEY *pkey = SSL_get_privatekey(ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002838 int type;
2839
2840 type = pkey ? EVP_PKEY_base_id(pkey) : EVP_PKEY_NONE;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002841
2842 /* The keylen supplied by OpenSSL can only be 512 or 1024.
2843 See ssl3_send_server_key_exchange() in ssl/s3_srvr.c
2844 */
2845 if (type == EVP_PKEY_RSA || type == EVP_PKEY_DSA) {
2846 keylen = EVP_PKEY_bits(pkey);
2847 }
2848
Willy Tarreauef934602016-12-22 23:12:01 +01002849 if (keylen > global_ssl.default_dh_param) {
2850 keylen = global_ssl.default_dh_param;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002851 }
2852
Remi Gacogned3a341a2015-05-29 16:26:17 +02002853 if (keylen >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002854 dh = local_dh_4096;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002855 }
2856 else if (keylen >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002857 dh = local_dh_2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002858 }
2859 else {
Remi Gacogne8de54152014-07-15 11:36:40 +02002860 dh = local_dh_1024;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002861 }
2862
2863 return dh;
2864}
2865
Remi Gacogne47783ef2015-05-29 15:53:22 +02002866static DH * ssl_sock_get_dh_from_file(const char *filename)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002867{
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002868 DH *dh = NULL;
Remi Gacogne47783ef2015-05-29 15:53:22 +02002869 BIO *in = BIO_new(BIO_s_file());
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002870
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002871 if (in == NULL)
2872 goto end;
2873
Remi Gacogne47783ef2015-05-29 15:53:22 +02002874 if (BIO_read_filename(in, filename) <= 0)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002875 goto end;
2876
Remi Gacogne47783ef2015-05-29 15:53:22 +02002877 dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
2878
2879end:
2880 if (in)
2881 BIO_free(in);
2882
Emeric Brune1b4ed42018-08-16 15:14:12 +02002883 ERR_clear_error();
2884
Remi Gacogne47783ef2015-05-29 15:53:22 +02002885 return dh;
2886}
2887
2888int ssl_sock_load_global_dh_param_from_file(const char *filename)
2889{
2890 global_dh = ssl_sock_get_dh_from_file(filename);
2891
2892 if (global_dh) {
2893 return 0;
2894 }
2895
2896 return -1;
2897}
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002898#endif
2899
William Lallemand9117de92019-10-04 00:29:42 +02002900/* This function allocates a sni_ctx and adds it to the ckch_inst */
William Lallemand1d29c742019-10-04 00:53:29 +02002901static int ckch_inst_add_cert_sni(SSL_CTX *ctx, struct ckch_inst *ckch_inst,
William Lallemand9117de92019-10-04 00:29:42 +02002902 struct bind_conf *s, struct ssl_bind_conf *conf,
2903 struct pkey_info kinfo, char *name, int order)
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002904{
2905 struct sni_ctx *sc;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002906 int wild = 0, neg = 0;
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002907
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002908 if (*name == '!') {
2909 neg = 1;
2910 name++;
2911 }
2912 if (*name == '*') {
2913 wild = 1;
2914 name++;
2915 }
2916 /* !* filter is a nop */
2917 if (neg && wild)
2918 return order;
2919 if (*name) {
2920 int j, len;
2921 len = strlen(name);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002922 for (j = 0; j < len && j < trash.size; j++)
Willy Tarreauf278eec2020-07-05 21:46:32 +02002923 trash.area[j] = tolower((unsigned char)name[j]);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002924 if (j >= trash.size)
William Lallemandfe49bb32019-10-03 23:46:33 +02002925 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002926 trash.area[j] = 0;
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002927
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002928 sc = malloc(sizeof(struct sni_ctx) + len + 1);
Thierry FOURNIER / OZON.IO7a3bd3b2016-10-06 10:35:29 +02002929 if (!sc)
William Lallemandfe49bb32019-10-03 23:46:33 +02002930 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002931 memcpy(sc->name.key, trash.area, len + 1);
William Lallemand02e19a52020-04-08 16:11:26 +02002932 SSL_CTX_up_ref(ctx);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002933 sc->ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002934 sc->conf = conf;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002935 sc->kinfo = kinfo;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002936 sc->order = order++;
2937 sc->neg = neg;
William Lallemand1d29c742019-10-04 00:53:29 +02002938 sc->wild = wild;
2939 sc->name.node.leaf_p = NULL;
William Lallemandcfca1422020-03-05 10:17:47 +01002940 sc->ckch_inst = ckch_inst;
Willy Tarreau2b718102021-04-21 07:32:39 +02002941 LIST_APPEND(&ckch_inst->sni_ctx, &sc->by_ckch_inst);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002942 }
2943 return order;
2944}
2945
William Lallemand6af03992019-07-23 15:00:54 +02002946/*
William Lallemand1d29c742019-10-04 00:53:29 +02002947 * Insert the sni_ctxs that are listed in the ckch_inst, in the bind_conf's sni_ctx tree
2948 * This function can't return an error.
2949 *
2950 * *CAUTION*: The caller must lock the sni tree if called in multithreading mode
2951 */
William Lallemandc756bbd2020-05-13 17:23:59 +02002952void ssl_sock_load_cert_sni(struct ckch_inst *ckch_inst, struct bind_conf *bind_conf)
William Lallemand1d29c742019-10-04 00:53:29 +02002953{
2954
2955 struct sni_ctx *sc0, *sc0b, *sc1;
2956 struct ebmb_node *node;
2957
2958 list_for_each_entry_safe(sc0, sc0b, &ckch_inst->sni_ctx, by_ckch_inst) {
2959
2960 /* ignore if sc0 was already inserted in a tree */
2961 if (sc0->name.node.leaf_p)
2962 continue;
2963
2964 /* Check for duplicates. */
2965 if (sc0->wild)
2966 node = ebst_lookup(&bind_conf->sni_w_ctx, (char *)sc0->name.key);
2967 else
2968 node = ebst_lookup(&bind_conf->sni_ctx, (char *)sc0->name.key);
2969
2970 for (; node; node = ebmb_next_dup(node)) {
2971 sc1 = ebmb_entry(node, struct sni_ctx, name);
2972 if (sc1->ctx == sc0->ctx && sc1->conf == sc0->conf
2973 && sc1->neg == sc0->neg && sc1->wild == sc0->wild) {
2974 /* it's a duplicate, we should remove and free it */
Willy Tarreau2b718102021-04-21 07:32:39 +02002975 LIST_DELETE(&sc0->by_ckch_inst);
William Lallemand02e19a52020-04-08 16:11:26 +02002976 SSL_CTX_free(sc0->ctx);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01002977 ha_free(&sc0);
William Lallemande15029b2019-10-14 10:46:58 +02002978 break;
William Lallemand1d29c742019-10-04 00:53:29 +02002979 }
2980 }
2981
2982 /* if duplicate, ignore the insertion */
2983 if (!sc0)
2984 continue;
2985
2986 if (sc0->wild)
2987 ebst_insert(&bind_conf->sni_w_ctx, &sc0->name);
2988 else
2989 ebst_insert(&bind_conf->sni_ctx, &sc0->name);
Remi Tricot-Le Breton8218aed2021-03-17 14:56:54 +01002990 }
William Lallemand21724f02019-11-04 17:56:13 +01002991
Remi Tricot-Le Breton8218aed2021-03-17 14:56:54 +01002992 /* replace the default_ctx if required with the instance's ctx. */
2993 if (ckch_inst->is_default) {
2994 SSL_CTX_free(bind_conf->default_ctx);
2995 SSL_CTX_up_ref(ckch_inst->ctx);
2996 bind_conf->default_ctx = ckch_inst->ctx;
William Lallemand1d29c742019-10-04 00:53:29 +02002997 }
2998}
2999
3000/*
William Lallemande3af8fb2019-10-08 11:36:53 +02003001 * tree used to store the ckchs ordered by filename/bundle name
William Lallemand6af03992019-07-23 15:00:54 +02003002 */
William Lallemande3af8fb2019-10-08 11:36:53 +02003003struct eb_root ckchs_tree = EB_ROOT_UNIQUE;
William Lallemand6af03992019-07-23 15:00:54 +02003004
William Lallemand2954c472020-03-06 21:54:13 +01003005/* tree of crtlist (crt-list/directory) */
William Lallemandc756bbd2020-05-13 17:23:59 +02003006struct eb_root crtlists_tree = EB_ROOT_UNIQUE;
William Lallemandfa892222019-07-23 16:06:08 +02003007
Emeric Brun7a883362019-10-17 13:27:40 +02003008/* Loads Diffie-Hellman parameter from a ckchs to an SSL_CTX.
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05003009 * If there is no DH parameter available in the ckchs, the global
Emeric Brun7a883362019-10-17 13:27:40 +02003010 * DH parameter is loaded into the SSL_CTX and if there is no
3011 * DH parameter available in ckchs nor in global, the default
3012 * DH parameters are applied on the SSL_CTX.
3013 * Returns a bitfield containing the flags:
3014 * ERR_FATAL in any fatal error case
3015 * ERR_ALERT if a reason of the error is availabine in err
3016 * ERR_WARN if a warning is available into err
3017 * The value 0 means there is no error nor warning and
3018 * the operation succeed.
3019 */
William Lallemandfa892222019-07-23 16:06:08 +02003020#ifndef OPENSSL_NO_DH
Emeric Brun7a883362019-10-17 13:27:40 +02003021static int ssl_sock_load_dh_params(SSL_CTX *ctx, const struct cert_key_and_chain *ckch,
3022 const char *path, char **err)
William Lallemandfa892222019-07-23 16:06:08 +02003023{
Emeric Brun7a883362019-10-17 13:27:40 +02003024 int ret = 0;
William Lallemandfa892222019-07-23 16:06:08 +02003025 DH *dh = NULL;
3026
William Lallemanda8c73742019-07-31 18:31:34 +02003027 if (ckch && ckch->dh) {
William Lallemandfa892222019-07-23 16:06:08 +02003028 dh = ckch->dh;
Emeric Bruna9363eb2019-10-17 14:53:03 +02003029 if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
3030 memprintf(err, "%sunable to load the DH parameter specified in '%s'",
3031 err && *err ? *err : "", path);
3032#if defined(SSL_CTX_set_dh_auto)
3033 SSL_CTX_set_dh_auto(ctx, 1);
3034 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3035 err && *err ? *err : "");
3036#else
3037 memprintf(err, "%s, DH ciphers won't be available.\n",
3038 err && *err ? *err : "");
3039#endif
3040 ret |= ERR_WARN;
3041 goto end;
3042 }
William Lallemandfa892222019-07-23 16:06:08 +02003043
3044 if (ssl_dh_ptr_index >= 0) {
3045 /* store a pointer to the DH params to avoid complaining about
3046 ssl-default-dh-param not being set for this SSL_CTX */
3047 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, dh);
3048 }
3049 }
3050 else if (global_dh) {
Emeric Bruna9363eb2019-10-17 14:53:03 +02003051 if (!SSL_CTX_set_tmp_dh(ctx, global_dh)) {
3052 memprintf(err, "%sunable to use the global DH parameter for certificate '%s'",
3053 err && *err ? *err : "", path);
3054#if defined(SSL_CTX_set_dh_auto)
3055 SSL_CTX_set_dh_auto(ctx, 1);
3056 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3057 err && *err ? *err : "");
3058#else
3059 memprintf(err, "%s, DH ciphers won't be available.\n",
3060 err && *err ? *err : "");
3061#endif
3062 ret |= ERR_WARN;
3063 goto end;
3064 }
William Lallemandfa892222019-07-23 16:06:08 +02003065 }
3066 else {
3067 /* Clear openssl global errors stack */
3068 ERR_clear_error();
3069
Willy Tarreau6d27a922020-11-05 19:38:05 +01003070 if (global_ssl.default_dh_param && global_ssl.default_dh_param <= 1024) {
William Lallemandfa892222019-07-23 16:06:08 +02003071 /* we are limited to DH parameter of 1024 bits anyway */
3072 if (local_dh_1024 == NULL)
3073 local_dh_1024 = ssl_get_dh_1024();
3074
Emeric Brun7a883362019-10-17 13:27:40 +02003075 if (local_dh_1024 == NULL) {
3076 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3077 err && *err ? *err : "", path);
3078 ret |= ERR_ALERT | ERR_FATAL;
William Lallemandfa892222019-07-23 16:06:08 +02003079 goto end;
Emeric Brun7a883362019-10-17 13:27:40 +02003080 }
William Lallemandfa892222019-07-23 16:06:08 +02003081
Emeric Bruna9363eb2019-10-17 14:53:03 +02003082 if (!SSL_CTX_set_tmp_dh(ctx, local_dh_1024)) {
3083 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3084 err && *err ? *err : "", path);
3085#if defined(SSL_CTX_set_dh_auto)
3086 SSL_CTX_set_dh_auto(ctx, 1);
3087 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3088 err && *err ? *err : "");
3089#else
3090 memprintf(err, "%s, DH ciphers won't be available.\n",
3091 err && *err ? *err : "");
3092#endif
3093 ret |= ERR_WARN;
3094 goto end;
3095 }
William Lallemandfa892222019-07-23 16:06:08 +02003096 }
3097 else {
3098 SSL_CTX_set_tmp_dh_callback(ctx, ssl_get_tmp_dh);
3099 }
William Lallemand8d0f8932019-10-17 18:03:58 +02003100 }
3101
William Lallemandf9568fc2019-10-16 18:27:58 +02003102end:
William Lallemandf9568fc2019-10-16 18:27:58 +02003103 ERR_clear_error();
William Lallemandf9568fc2019-10-16 18:27:58 +02003104 return ret;
3105}
Emmanuel Hocdet54227d82019-07-30 17:04:01 +02003106#endif
William Lallemandfa892222019-07-23 16:06:08 +02003107
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003108
3109/* Load a certificate chain into an SSL context.
Emeric Bruna96b5822019-10-17 13:25:14 +02003110 * Returns a bitfield containing the flags:
3111 * ERR_FATAL in any fatal error case
3112 * ERR_ALERT if the reason of the error is available in err
3113 * ERR_WARN if a warning is available into err
3114 * The value 0 means there is no error nor warning and
3115 * the operation succeed.
yanbzhu488a4d22015-12-01 15:16:07 -05003116 */
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003117static int ssl_sock_load_cert_chain(const char *path, const struct cert_key_and_chain *ckch,
3118 SSL_CTX *ctx, STACK_OF(X509) **find_chain, char **err)
yanbzhu488a4d22015-12-01 15:16:07 -05003119{
Emeric Bruna96b5822019-10-17 13:25:14 +02003120 int errcode = 0;
3121
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003122 if (find_chain == NULL) {
3123 errcode |= ERR_FATAL;
3124 goto end;
yanbzhu488a4d22015-12-01 15:16:07 -05003125 }
3126
3127 if (!SSL_CTX_use_certificate(ctx, ckch->cert)) {
3128 memprintf(err, "%sunable to load SSL certificate into SSL Context '%s'.\n",
3129 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003130 errcode |= ERR_ALERT | ERR_FATAL;
3131 goto end;
yanbzhu488a4d22015-12-01 15:16:07 -05003132 }
3133
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003134 if (ckch->chain) {
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003135 *find_chain = ckch->chain;
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003136 } else {
3137 /* Find Certificate Chain in global */
3138 struct issuer_chain *issuer;
Emmanuel Hocdetef87e0a2020-03-23 11:29:11 +01003139 issuer = ssl_get0_issuer_chain(ckch->cert);
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003140 if (issuer)
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003141 *find_chain = issuer->chain;
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003142 }
William Lallemand85888572020-02-27 14:48:35 +01003143
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003144 if (!*find_chain) {
William Lallemand935d8292020-08-12 20:02:10 +02003145 /* always put a null chain stack in the SSL_CTX so it does not
3146 * try to build the chain from the verify store */
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003147 *find_chain = sk_X509_new_null();
William Lallemand935d8292020-08-12 20:02:10 +02003148 }
3149
William Lallemandf187ce62020-06-02 18:27:20 +02003150 /* Load all certs in the ckch into the ctx_chain for the ssl_ctx */
William Lallemandf187ce62020-06-02 18:27:20 +02003151#ifdef SSL_CTX_set1_chain
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003152 if (!SSL_CTX_set1_chain(ctx, *find_chain)) {
William Lallemand935d8292020-08-12 20:02:10 +02003153 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'. Make sure you are linking against Openssl >= 1.0.2.\n",
3154 err && *err ? *err : "", path);
3155 errcode |= ERR_ALERT | ERR_FATAL;
3156 goto end;
3157 }
William Lallemandf187ce62020-06-02 18:27:20 +02003158#else
3159 { /* legacy compat (< openssl 1.0.2) */
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003160 X509 *ca;
William Lallemandf187ce62020-06-02 18:27:20 +02003161 STACK_OF(X509) *chain;
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003162 chain = X509_chain_up_ref(*find_chain);
William Lallemandf187ce62020-06-02 18:27:20 +02003163 while ((ca = sk_X509_shift(chain)))
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003164 if (!SSL_CTX_add_extra_chain_cert(ctx, ca)) {
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003165 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3166 err && *err ? *err : "", path);
William Lallemandf187ce62020-06-02 18:27:20 +02003167 X509_free(ca);
3168 sk_X509_pop_free(chain, X509_free);
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003169 errcode |= ERR_ALERT | ERR_FATAL;
3170 goto end;
3171 }
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003172 }
William Lallemandf187ce62020-06-02 18:27:20 +02003173#endif
yanbzhu488a4d22015-12-01 15:16:07 -05003174
William Lallemand9a1d8392020-08-10 17:28:23 +02003175#ifdef SSL_CTX_build_cert_chain
William Lallemandbf298af2020-08-10 16:18:45 +02003176 /* remove the Root CA from the SSL_CTX if the option is activated */
3177 if (global_ssl.skip_self_issued_ca) {
3178 if (!SSL_CTX_build_cert_chain(ctx, SSL_BUILD_CHAIN_FLAG_NO_ROOT|SSL_BUILD_CHAIN_FLAG_UNTRUSTED|SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR)) {
3179 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3180 err && *err ? *err : "", path);
3181 errcode |= ERR_ALERT | ERR_FATAL;
3182 goto end;
3183 }
3184 }
William Lallemand9a1d8392020-08-10 17:28:23 +02003185#endif
William Lallemandbf298af2020-08-10 16:18:45 +02003186
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003187end:
3188 return errcode;
3189}
3190
3191
3192/* Loads the info in ckch into ctx
3193 * Returns a bitfield containing the flags:
3194 * ERR_FATAL in any fatal error case
3195 * ERR_ALERT if the reason of the error is available in err
3196 * ERR_WARN if a warning is available into err
3197 * The value 0 means there is no error nor warning and
3198 * the operation succeed.
3199 */
3200static int ssl_sock_put_ckch_into_ctx(const char *path, const struct cert_key_and_chain *ckch, SSL_CTX *ctx, char **err)
3201{
3202 int errcode = 0;
3203 STACK_OF(X509) *find_chain = NULL;
3204
3205 if (SSL_CTX_use_PrivateKey(ctx, ckch->key) <= 0) {
3206 memprintf(err, "%sunable to load SSL private key into SSL Context '%s'.\n",
3207 err && *err ? *err : "", path);
3208 errcode |= ERR_ALERT | ERR_FATAL;
3209 return errcode;
3210 }
3211
3212 /* Load certificate chain */
3213 errcode |= ssl_sock_load_cert_chain(path, ckch, ctx, &find_chain, err);
3214 if (errcode & ERR_CODE)
3215 goto end;
3216
William Lallemandfa892222019-07-23 16:06:08 +02003217#ifndef OPENSSL_NO_DH
3218 /* store a NULL pointer to indicate we have not yet loaded
3219 a custom DH param file */
3220 if (ssl_dh_ptr_index >= 0) {
3221 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, NULL);
3222 }
3223
Emeric Brun7a883362019-10-17 13:27:40 +02003224 errcode |= ssl_sock_load_dh_params(ctx, ckch, path, err);
3225 if (errcode & ERR_CODE) {
William Lallemandfa892222019-07-23 16:06:08 +02003226 memprintf(err, "%sunable to load DH parameters from file '%s'.\n",
3227 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003228 goto end;
William Lallemandfa892222019-07-23 16:06:08 +02003229 }
3230#endif
3231
Ilya Shipitsin7bbf5862021-02-06 18:55:27 +05003232#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
William Lallemanda17f4112019-10-10 15:16:44 +02003233 if (sctl_ex_index >= 0 && ckch->sctl) {
3234 if (ssl_sock_load_sctl(ctx, ckch->sctl) < 0) {
3235 memprintf(err, "%s '%s.sctl' is present but cannot be read or parsed'.\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01003236 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003237 errcode |= ERR_ALERT | ERR_FATAL;
3238 goto end;
William Lallemanda17f4112019-10-10 15:16:44 +02003239 }
3240 }
3241#endif
3242
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01003243#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
William Lallemand246c0242019-10-11 08:59:13 +02003244 /* Load OCSP Info into context */
3245 if (ckch->ocsp_response) {
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01003246 if (ssl_sock_load_ocsp(ctx, ckch, find_chain) < 0) {
Tim Duesterhus93128532019-11-23 23:45:10 +01003247 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",
3248 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003249 errcode |= ERR_ALERT | ERR_FATAL;
3250 goto end;
William Lallemand246c0242019-10-11 08:59:13 +02003251 }
3252 }
William Lallemand246c0242019-10-11 08:59:13 +02003253#endif
3254
Emeric Bruna96b5822019-10-17 13:25:14 +02003255 end:
3256 return errcode;
yanbzhu488a4d22015-12-01 15:16:07 -05003257}
3258
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003259
3260/* Loads the info of a ckch built out of a backend certificate into an SSL ctx
3261 * Returns a bitfield containing the flags:
3262 * ERR_FATAL in any fatal error case
3263 * ERR_ALERT if the reason of the error is available in err
3264 * ERR_WARN if a warning is available into err
3265 * The value 0 means there is no error nor warning and
3266 * the operation succeed.
3267 */
3268static int ssl_sock_put_srv_ckch_into_ctx(const char *path, const struct cert_key_and_chain *ckch,
3269 SSL_CTX *ctx, char **err)
3270{
3271 int errcode = 0;
3272 STACK_OF(X509) *find_chain = NULL;
3273
3274 /* Load the private key */
3275 if (SSL_CTX_use_PrivateKey(ctx, ckch->key) <= 0) {
3276 memprintf(err, "%sunable to load SSL private key into SSL Context '%s'.\n",
3277 err && *err ? *err : "", path);
3278 errcode |= ERR_ALERT | ERR_FATAL;
3279 }
3280
3281 /* Load certificate chain */
3282 errcode |= ssl_sock_load_cert_chain(path, ckch, ctx, &find_chain, err);
3283 if (errcode & ERR_CODE)
3284 goto end;
3285
3286 if (SSL_CTX_check_private_key(ctx) <= 0) {
3287 memprintf(err, "%sinconsistencies between private key and certificate loaded from PEM file '%s'.\n",
3288 err && *err ? *err : "", path);
3289 errcode |= ERR_ALERT | ERR_FATAL;
3290 }
3291
3292end:
3293 return errcode;
3294}
3295
3296
William Lallemand614ca0d2019-10-07 13:52:11 +02003297/*
3298 * This function allocate a ckch_inst and create its snis
Emeric Brun054563d2019-10-17 13:16:58 +02003299 *
3300 * Returns a bitfield containing the flags:
3301 * ERR_FATAL in any fatal error case
3302 * ERR_ALERT if the reason of the error is available in err
3303 * ERR_WARN if a warning is available into err
William Lallemand614ca0d2019-10-07 13:52:11 +02003304 */
William Lallemandc756bbd2020-05-13 17:23:59 +02003305int ckch_inst_new_load_store(const char *path, struct ckch_store *ckchs, struct bind_conf *bind_conf,
Emeric Brun054563d2019-10-17 13:16:58 +02003306 struct ssl_bind_conf *ssl_conf, char **sni_filter, int fcount, struct ckch_inst **ckchi, char **err)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003307{
William Lallemandc9402072019-05-15 15:33:54 +02003308 SSL_CTX *ctx;
William Lallemandc9402072019-05-15 15:33:54 +02003309 int i;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003310 int order = 0;
3311 X509_NAME *xname;
3312 char *str;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003313 EVP_PKEY *pkey;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003314 struct pkey_info kinfo = { .sig = TLSEXT_signature_anonymous, .bits = 0 };
Emeric Brunfc0421f2012-09-07 17:30:07 +02003315#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3316 STACK_OF(GENERAL_NAME) *names;
3317#endif
William Lallemand36b84632019-07-18 19:28:17 +02003318 struct cert_key_and_chain *ckch;
William Lallemand614ca0d2019-10-07 13:52:11 +02003319 struct ckch_inst *ckch_inst = NULL;
Emeric Brun054563d2019-10-17 13:16:58 +02003320 int errcode = 0;
3321
3322 *ckchi = NULL;
William Lallemanda59191b2019-05-15 16:08:56 +02003323
William Lallemande3af8fb2019-10-08 11:36:53 +02003324 if (!ckchs || !ckchs->ckch)
Emeric Brun054563d2019-10-17 13:16:58 +02003325 return ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003326
William Lallemande3af8fb2019-10-08 11:36:53 +02003327 ckch = ckchs->ckch;
William Lallemand36b84632019-07-18 19:28:17 +02003328
William Lallemandc9402072019-05-15 15:33:54 +02003329 ctx = SSL_CTX_new(SSLv23_server_method());
3330 if (!ctx) {
3331 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3332 err && *err ? *err : "", path);
Emeric Brun054563d2019-10-17 13:16:58 +02003333 errcode |= ERR_ALERT | ERR_FATAL;
3334 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003335 }
3336
Emeric Bruna96b5822019-10-17 13:25:14 +02003337 errcode |= ssl_sock_put_ckch_into_ctx(path, ckch, ctx, err);
3338 if (errcode & ERR_CODE)
William Lallemand614ca0d2019-10-07 13:52:11 +02003339 goto error;
William Lallemand614ca0d2019-10-07 13:52:11 +02003340
3341 ckch_inst = ckch_inst_new();
3342 if (!ckch_inst) {
3343 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3344 err && *err ? *err : "", path);
Emeric Brun054563d2019-10-17 13:16:58 +02003345 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003346 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003347 }
3348
William Lallemand36b84632019-07-18 19:28:17 +02003349 pkey = X509_get_pubkey(ckch->cert);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003350 if (pkey) {
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003351 kinfo.bits = EVP_PKEY_bits(pkey);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003352 switch(EVP_PKEY_base_id(pkey)) {
3353 case EVP_PKEY_RSA:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003354 kinfo.sig = TLSEXT_signature_rsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003355 break;
3356 case EVP_PKEY_EC:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003357 kinfo.sig = TLSEXT_signature_ecdsa;
3358 break;
3359 case EVP_PKEY_DSA:
3360 kinfo.sig = TLSEXT_signature_dsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003361 break;
3362 }
3363 EVP_PKEY_free(pkey);
3364 }
3365
Emeric Brun50bcecc2013-04-22 13:05:23 +02003366 if (fcount) {
William Lallemandfe49bb32019-10-03 23:46:33 +02003367 while (fcount--) {
William Lallemand1d29c742019-10-04 00:53:29 +02003368 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 +02003369 if (order < 0) {
3370 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003371 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003372 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003373 }
3374 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003375 }
3376 else {
Emeric Brunfc0421f2012-09-07 17:30:07 +02003377#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
William Lallemand36b84632019-07-18 19:28:17 +02003378 names = X509_get_ext_d2i(ckch->cert, NID_subject_alt_name, NULL, NULL);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003379 if (names) {
3380 for (i = 0; i < sk_GENERAL_NAME_num(names); i++) {
3381 GENERAL_NAME *name = sk_GENERAL_NAME_value(names, i);
3382 if (name->type == GEN_DNS) {
3383 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003384 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003385 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003386 if (order < 0) {
3387 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003388 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003389 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003390 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003391 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003392 }
3393 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003394 sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
Emeric Brunfc0421f2012-09-07 17:30:07 +02003395 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003396#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
William Lallemand36b84632019-07-18 19:28:17 +02003397 xname = X509_get_subject_name(ckch->cert);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003398 i = -1;
3399 while ((i = X509_NAME_get_index_by_NID(xname, NID_commonName, i)) != -1) {
3400 X509_NAME_ENTRY *entry = X509_NAME_get_entry(xname, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02003401 ASN1_STRING *value;
3402
3403 value = X509_NAME_ENTRY_get_data(entry);
3404 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003405 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003406 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003407 if (order < 0) {
3408 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003409 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003410 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003411 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003412 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003413 }
3414 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003415 /* we must not free the SSL_CTX anymore below, since it's already in
3416 * the tree, so it will be discovered and cleaned in time.
3417 */
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003418
Emeric Brunfc0421f2012-09-07 17:30:07 +02003419#ifndef SSL_CTRL_SET_TLSEXT_HOSTNAME
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003420 if (bind_conf->default_ctx) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +02003421 memprintf(err, "%sthis version of openssl cannot load multiple SSL certificates.\n",
3422 err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003423 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003424 goto error;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003425 }
3426#endif
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003427 if (!bind_conf->default_ctx) {
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003428 bind_conf->default_ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003429 bind_conf->default_ssl_conf = ssl_conf;
William Lallemand21724f02019-11-04 17:56:13 +01003430 ckch_inst->is_default = 1;
William Lallemand02e19a52020-04-08 16:11:26 +02003431 SSL_CTX_up_ref(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003432 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003433
Remi Tricot-Le Breton8218aed2021-03-17 14:56:54 +01003434 /* Always keep a reference to the newly constructed SSL_CTX in the
3435 * instance. This way if the instance has no SNIs, the SSL_CTX will
3436 * still be linked. */
3437 SSL_CTX_up_ref(ctx);
3438 ckch_inst->ctx = ctx;
3439
William Lallemand9117de92019-10-04 00:29:42 +02003440 /* everything succeed, the ckch instance can be used */
3441 ckch_inst->bind_conf = bind_conf;
William Lallemand150bfa82019-09-19 17:12:49 +02003442 ckch_inst->ssl_conf = ssl_conf;
William Lallemandcfca1422020-03-05 10:17:47 +01003443 ckch_inst->ckch_store = ckchs;
William Lallemand9117de92019-10-04 00:29:42 +02003444
William Lallemand02e19a52020-04-08 16:11:26 +02003445 SSL_CTX_free(ctx); /* we need to free the ctx since we incremented the refcount where it's used */
3446
Emeric Brun054563d2019-10-17 13:16:58 +02003447 *ckchi = ckch_inst;
3448 return errcode;
William Lallemandd9199372019-10-04 15:37:05 +02003449
3450error:
3451 /* free the allocated sni_ctxs */
William Lallemand614ca0d2019-10-07 13:52:11 +02003452 if (ckch_inst) {
William Lallemand02e19a52020-04-08 16:11:26 +02003453 if (ckch_inst->is_default)
3454 SSL_CTX_free(ctx);
3455
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003456 ckch_inst_free(ckch_inst);
William Lallemand614ca0d2019-10-07 13:52:11 +02003457 ckch_inst = NULL;
William Lallemandd9199372019-10-04 15:37:05 +02003458 }
William Lallemandd9199372019-10-04 15:37:05 +02003459 SSL_CTX_free(ctx);
3460
Emeric Brun054563d2019-10-17 13:16:58 +02003461 return errcode;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003462}
3463
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003464
3465/*
3466 * This function allocate a ckch_inst that will be used on the backend side
3467 * (server line)
3468 *
3469 * Returns a bitfield containing the flags:
3470 * ERR_FATAL in any fatal error case
3471 * ERR_ALERT if the reason of the error is available in err
3472 * ERR_WARN if a warning is available into err
3473 */
3474int ckch_inst_new_load_srv_store(const char *path, struct ckch_store *ckchs,
William Lallemand795bd9b2021-01-26 11:27:42 +01003475 struct ckch_inst **ckchi, char **err)
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003476{
3477 SSL_CTX *ctx;
3478 struct cert_key_and_chain *ckch;
3479 struct ckch_inst *ckch_inst = NULL;
3480 int errcode = 0;
3481
3482 *ckchi = NULL;
3483
3484 if (!ckchs || !ckchs->ckch)
3485 return ERR_FATAL;
3486
3487 ckch = ckchs->ckch;
3488
3489 ctx = SSL_CTX_new(SSLv23_client_method());
3490 if (!ctx) {
3491 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3492 err && *err ? *err : "", path);
3493 errcode |= ERR_ALERT | ERR_FATAL;
3494 goto error;
3495 }
3496
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003497 errcode |= ssl_sock_put_srv_ckch_into_ctx(path, ckch, ctx, err);
3498 if (errcode & ERR_CODE)
3499 goto error;
3500
3501 ckch_inst = ckch_inst_new();
3502 if (!ckch_inst) {
3503 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3504 err && *err ? *err : "", path);
3505 errcode |= ERR_ALERT | ERR_FATAL;
3506 goto error;
3507 }
3508
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003509 /* everything succeed, the ckch instance can be used */
3510 ckch_inst->bind_conf = NULL;
3511 ckch_inst->ssl_conf = NULL;
3512 ckch_inst->ckch_store = ckchs;
William Lallemand795bd9b2021-01-26 11:27:42 +01003513 ckch_inst->ctx = ctx;
William Lallemanddb26e2b2021-01-26 12:01:46 +01003514 ckch_inst->is_server_instance = 1;
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003515
3516 *ckchi = ckch_inst;
3517 return errcode;
3518
3519error:
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003520 SSL_CTX_free(ctx);
3521
3522 return errcode;
3523}
3524
Willy Tarreau8c5414a2019-10-16 17:06:25 +02003525/* Returns a set of ERR_* flags possibly with an error in <err>. */
William Lallemand614ca0d2019-10-07 13:52:11 +02003526static int ssl_sock_load_ckchs(const char *path, struct ckch_store *ckchs,
3527 struct bind_conf *bind_conf, struct ssl_bind_conf *ssl_conf,
William Lallemand24bde432020-03-09 16:48:43 +01003528 char **sni_filter, int fcount, struct ckch_inst **ckch_inst, char **err)
William Lallemand614ca0d2019-10-07 13:52:11 +02003529{
Emeric Brun054563d2019-10-17 13:16:58 +02003530 int errcode = 0;
William Lallemand614ca0d2019-10-07 13:52:11 +02003531
3532 /* we found the ckchs in the tree, we can use it directly */
William Lallemande7eb1fe2020-09-16 16:17:51 +02003533 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 +02003534
Emeric Brun054563d2019-10-17 13:16:58 +02003535 if (errcode & ERR_CODE)
3536 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003537
William Lallemand24bde432020-03-09 16:48:43 +01003538 ssl_sock_load_cert_sni(*ckch_inst, bind_conf);
William Lallemand614ca0d2019-10-07 13:52:11 +02003539
3540 /* succeed, add the instance to the ckch_store's list of instance */
Willy Tarreau2b718102021-04-21 07:32:39 +02003541 LIST_APPEND(&ckchs->ckch_inst, &((*ckch_inst)->by_ckchs));
Emeric Brun054563d2019-10-17 13:16:58 +02003542 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003543}
3544
William Lallemanddb26e2b2021-01-26 12:01:46 +01003545/* This function generates a <struct ckch_inst *> for a <struct server *>, and
3546 * fill the SSL_CTX of the server.
3547 *
3548 * Returns a set of ERR_* flags possibly with an error in <err>. */
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003549static int ssl_sock_load_srv_ckchs(const char *path, struct ckch_store *ckchs,
William Lallemanddb26e2b2021-01-26 12:01:46 +01003550 struct server *server, struct ckch_inst **ckch_inst, char **err)
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003551{
3552 int errcode = 0;
3553
3554 /* we found the ckchs in the tree, we can use it directly */
William Lallemand795bd9b2021-01-26 11:27:42 +01003555 errcode |= ckch_inst_new_load_srv_store(path, ckchs, ckch_inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003556
3557 if (errcode & ERR_CODE)
3558 return errcode;
3559
William Lallemanddb26e2b2021-01-26 12:01:46 +01003560 (*ckch_inst)->server = server;
3561 /* Keep the reference to the SSL_CTX in the server. */
3562 SSL_CTX_up_ref((*ckch_inst)->ctx);
3563 server->ssl_ctx.ctx = (*ckch_inst)->ctx;
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003564 /* succeed, add the instance to the ckch_store's list of instance */
Willy Tarreau2b718102021-04-21 07:32:39 +02003565 LIST_APPEND(&ckchs->ckch_inst, &((*ckch_inst)->by_ckchs));
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003566 return errcode;
3567}
3568
William Lallemand6be66ec2020-03-06 22:26:32 +01003569
William Lallemand4c68bba2020-03-30 18:45:10 +02003570
3571
3572/* Make sure openssl opens /dev/urandom before the chroot. The work is only
3573 * done once. Zero is returned if the operation fails. No error is returned
3574 * if the random is said as not implemented, because we expect that openssl
3575 * will use another method once needed.
3576 */
3577static int ssl_initialize_random()
3578{
3579 unsigned char random;
3580 static int random_initialized = 0;
3581
3582 if (!random_initialized && RAND_bytes(&random, 1) != 0)
3583 random_initialized = 1;
3584
3585 return random_initialized;
3586}
3587
William Lallemand2954c472020-03-06 21:54:13 +01003588/* Load a crt-list file, this is done in 2 parts:
3589 * - store the content of the file in a crtlist structure with crtlist_entry structures
3590 * - generate the instances by iterating on entries in the crtlist struct
3591 *
3592 * Nothing is locked there, this function is used in the configuration parser.
3593 *
3594 * Returns a set of ERR_* flags possibly with an error in <err>.
3595 */
William Lallemand6be66ec2020-03-06 22:26:32 +01003596int 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 +01003597{
3598 struct crtlist *crtlist = NULL;
3599 struct ebmb_node *eb;
William Lallemand49398312020-03-30 17:01:33 +02003600 struct crtlist_entry *entry = NULL;
William Lallemand79d31ec2020-03-25 15:10:49 +01003601 struct bind_conf_list *bind_conf_node = NULL;
William Lallemand2954c472020-03-06 21:54:13 +01003602 int cfgerr = 0;
William Lallemand41ca9302020-04-08 13:15:18 +02003603 char *end;
William Lallemand2954c472020-03-06 21:54:13 +01003604
William Lallemand79d31ec2020-03-25 15:10:49 +01003605 bind_conf_node = malloc(sizeof(*bind_conf_node));
3606 if (!bind_conf_node) {
3607 memprintf(err, "%sCan't alloc memory!\n", err && *err ? *err : "");
3608 cfgerr |= ERR_FATAL | ERR_ALERT;
3609 goto error;
3610 }
3611 bind_conf_node->next = NULL;
3612 bind_conf_node->bind_conf = bind_conf;
3613
William Lallemand41ca9302020-04-08 13:15:18 +02003614 /* strip trailing slashes, including first one */
3615 for (end = file + strlen(file) - 1; end >= file && *end == '/'; end--)
3616 *end = 0;
3617
William Lallemand2954c472020-03-06 21:54:13 +01003618 /* look for an existing crtlist or create one */
3619 eb = ebst_lookup(&crtlists_tree, file);
3620 if (eb) {
3621 crtlist = ebmb_entry(eb, struct crtlist, node);
3622 } else {
William Lallemand6be66ec2020-03-06 22:26:32 +01003623 /* load a crt-list OR a directory */
3624 if (dir)
3625 cfgerr |= crtlist_load_cert_dir(file, bind_conf, &crtlist, err);
3626 else
3627 cfgerr |= crtlist_parse_file(file, bind_conf, curproxy, &crtlist, err);
3628
William Lallemand2954c472020-03-06 21:54:13 +01003629 if (!(cfgerr & ERR_CODE))
3630 ebst_insert(&crtlists_tree, &crtlist->node);
3631 }
3632
3633 if (cfgerr & ERR_CODE) {
3634 cfgerr |= ERR_FATAL | ERR_ALERT;
3635 goto error;
3636 }
3637
3638 /* generates ckch instance from the crtlist_entry */
3639 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3640 struct ckch_store *store;
3641 struct ckch_inst *ckch_inst = NULL;
3642
3643 store = entry->node.key;
3644 cfgerr |= ssl_sock_load_ckchs(store->path, store, bind_conf, entry->ssl_conf, entry->filters, entry->fcount, &ckch_inst, err);
3645 if (cfgerr & ERR_CODE) {
3646 memprintf(err, "error processing line %d in file '%s' : %s", entry->linenum, file, *err);
3647 goto error;
3648 }
Willy Tarreau2b718102021-04-21 07:32:39 +02003649 LIST_APPEND(&entry->ckch_inst, &ckch_inst->by_crtlist_entry);
William Lallemandcaa16192020-04-08 16:29:15 +02003650 ckch_inst->crtlist_entry = entry;
William Lallemand2954c472020-03-06 21:54:13 +01003651 }
William Lallemand2954c472020-03-06 21:54:13 +01003652
William Lallemand79d31ec2020-03-25 15:10:49 +01003653 /* add the bind_conf to the list */
3654 bind_conf_node->next = crtlist->bind_conf;
3655 crtlist->bind_conf = bind_conf_node;
3656
William Lallemand2954c472020-03-06 21:54:13 +01003657 return cfgerr;
3658error:
3659 {
William Lallemand49398312020-03-30 17:01:33 +02003660 struct crtlist_entry *lastentry;
William Lallemand2954c472020-03-06 21:54:13 +01003661 struct ckch_inst *inst, *s_inst;
3662
William Lallemand49398312020-03-30 17:01:33 +02003663 lastentry = entry; /* which entry we tried to generate last */
3664 if (lastentry) {
3665 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3666 if (entry == lastentry) /* last entry we tried to generate, no need to go further */
3667 break;
3668
3669 list_for_each_entry_safe(inst, s_inst, &entry->ckch_inst, by_crtlist_entry) {
William Lallemand2954c472020-03-06 21:54:13 +01003670
William Lallemand49398312020-03-30 17:01:33 +02003671 /* this was not generated for this bind_conf, skip */
3672 if (inst->bind_conf != bind_conf)
3673 continue;
3674
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003675 /* free the sni_ctx and instance */
3676 ckch_inst_free(inst);
William Lallemand49398312020-03-30 17:01:33 +02003677 }
William Lallemand2954c472020-03-06 21:54:13 +01003678 }
William Lallemand2954c472020-03-06 21:54:13 +01003679 }
William Lallemand79d31ec2020-03-25 15:10:49 +01003680 free(bind_conf_node);
William Lallemand2954c472020-03-06 21:54:13 +01003681 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003682 return cfgerr;
3683}
3684
William Lallemand06b22a82020-03-16 14:45:55 +01003685/* Returns a set of ERR_* flags possibly with an error in <err>. */
3686int ssl_sock_load_cert(char *path, struct bind_conf *bind_conf, char **err)
3687{
3688 struct stat buf;
William Lallemand06b22a82020-03-16 14:45:55 +01003689 int cfgerr = 0;
3690 struct ckch_store *ckchs;
William Lallemand24bde432020-03-09 16:48:43 +01003691 struct ckch_inst *ckch_inst = NULL;
William Lallemand06ce84a2020-11-20 15:36:13 +01003692 int found = 0; /* did we found a file to load ? */
William Lallemand06b22a82020-03-16 14:45:55 +01003693
3694 if ((ckchs = ckchs_lookup(path))) {
3695 /* we found the ckchs in the tree, we can use it directly */
William Lallemand06ce84a2020-11-20 15:36:13 +01003696 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3697 found++;
3698 } else if (stat(path, &buf) == 0) {
3699 found++;
William Lallemand06b22a82020-03-16 14:45:55 +01003700 if (S_ISDIR(buf.st_mode) == 0) {
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003701 ckchs = ckchs_load_cert_file(path, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003702 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003703 cfgerr |= ERR_ALERT | ERR_FATAL;
3704 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003705 } else {
William Lallemand06ce84a2020-11-20 15:36:13 +01003706 cfgerr |= ssl_sock_load_cert_list_file(path, 1, bind_conf, bind_conf->frontend, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003707 }
3708 } else {
3709 /* stat failed, could be a bundle */
3710 if (global_ssl.extra_files & SSL_GF_BUNDLE) {
William Lallemanddfa93be2020-09-16 14:48:52 +02003711 char fp[MAXPATHLEN+1] = {0};
3712 int n = 0;
3713
3714 /* Load all possible certs and keys in separate ckch_store */
3715 for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
3716 struct stat buf;
3717 int ret;
3718
3719 ret = snprintf(fp, sizeof(fp), "%s.%s", path, SSL_SOCK_KEYTYPE_NAMES[n]);
3720 if (ret > sizeof(fp))
3721 continue;
3722
3723 if ((ckchs = ckchs_lookup(fp))) {
3724 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06ce84a2020-11-20 15:36:13 +01003725 found++;
William Lallemanddfa93be2020-09-16 14:48:52 +02003726 } else {
3727 if (stat(fp, &buf) == 0) {
William Lallemand06ce84a2020-11-20 15:36:13 +01003728 found++;
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003729 ckchs = ckchs_load_cert_file(fp, err);
William Lallemanddfa93be2020-09-16 14:48:52 +02003730 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003731 cfgerr |= ERR_ALERT | ERR_FATAL;
William Lallemanddfa93be2020-09-16 14:48:52 +02003732 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3733 }
3734 }
3735 }
William Lallemandb7fdfdf2020-12-04 15:45:02 +01003736#if HA_OPENSSL_VERSION_NUMBER < 0x10101000L
3737 if (found) {
3738 memprintf(err, "%sCan't load '%s'. Loading a multi certificates bundle requires OpenSSL >= 1.1.1\n",
3739 err && *err ? *err : "", path);
3740 cfgerr |= ERR_ALERT | ERR_FATAL;
3741 }
3742#endif
William Lallemand06b22a82020-03-16 14:45:55 +01003743 }
3744 }
William Lallemand06ce84a2020-11-20 15:36:13 +01003745 if (!found) {
3746 memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
3747 err && *err ? *err : "", path, strerror(errno));
3748 cfgerr |= ERR_ALERT | ERR_FATAL;
3749 }
William Lallemand06b22a82020-03-16 14:45:55 +01003750
3751 return cfgerr;
3752}
3753
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003754
3755/* Create a full ssl context and ckch instance that will be used for a specific
3756 * backend server (server configuration line).
3757 * Returns a set of ERR_* flags possibly with an error in <err>.
3758 */
3759int ssl_sock_load_srv_cert(char *path, struct server *server, char **err)
3760{
3761 struct stat buf;
3762 int cfgerr = 0;
3763 struct ckch_store *ckchs;
3764 int found = 0; /* did we found a file to load ? */
3765
3766 if ((ckchs = ckchs_lookup(path))) {
3767 /* we found the ckchs in the tree, we can use it directly */
William Lallemanddb26e2b2021-01-26 12:01:46 +01003768 cfgerr |= ssl_sock_load_srv_ckchs(path, ckchs, server, &server->ssl_ctx.inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003769 found++;
3770 } else if (stat(path, &buf) == 0) {
3771 /* We do not manage directories on backend side. */
3772 if (S_ISDIR(buf.st_mode) == 0) {
3773 ++found;
3774 ckchs = ckchs_load_cert_file(path, err);
3775 if (!ckchs)
3776 cfgerr |= ERR_ALERT | ERR_FATAL;
William Lallemanddb26e2b2021-01-26 12:01:46 +01003777 cfgerr |= ssl_sock_load_srv_ckchs(path, ckchs, server, &server->ssl_ctx.inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003778 }
3779 }
3780 if (!found) {
3781 memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
3782 err && *err ? *err : "", path, strerror(errno));
3783 cfgerr |= ERR_ALERT | ERR_FATAL;
3784 }
3785
3786 return cfgerr;
3787}
3788
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003789/* Create an initial CTX used to start the SSL connection before switchctx */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003790static int
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003791ssl_sock_initial_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003792{
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003793 SSL_CTX *ctx = NULL;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003794 long options =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003795 SSL_OP_ALL | /* all known workarounds for bugs */
3796 SSL_OP_NO_SSLv2 |
3797 SSL_OP_NO_COMPRESSION |
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003798 SSL_OP_SINGLE_DH_USE |
Emeric Brun2b58d042012-09-20 17:10:03 +02003799 SSL_OP_SINGLE_ECDH_USE |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003800 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION |
Lukas Tribus926594f2018-05-18 17:55:57 +02003801 SSL_OP_PRIORITIZE_CHACHA |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003802 SSL_OP_CIPHER_SERVER_PREFERENCE;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003803 long mode =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003804 SSL_MODE_ENABLE_PARTIAL_WRITE |
3805 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
Willy Tarreau396a1862014-11-13 14:06:52 +01003806 SSL_MODE_RELEASE_BUFFERS |
3807 SSL_MODE_SMALL_BUFFERS;
Emmanuel Hocdet43664762017-08-09 18:26:20 +02003808 struct tls_version_filter *conf_ssl_methods = &bind_conf->ssl_conf.ssl_methods;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003809 int i, min, max, hole;
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003810 int flags = MC_SSL_O_ALL;
3811 int cfgerr = 0;
William Lallemand50df1cb2020-06-02 10:52:24 +02003812 const int default_min_ver = CONF_TLSV12;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003813
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003814 ctx = SSL_CTX_new(SSLv23_server_method());
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003815 bind_conf->initial_ctx = ctx;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003816
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003817 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01003818 ha_warning("Proxy '%s': no-sslv3/no-tlsv1x are ignored for bind '%s' at [%s:%d]. "
3819 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3820 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003821 else
3822 flags = conf_ssl_methods->flags;
3823
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003824 min = conf_ssl_methods->min;
3825 max = conf_ssl_methods->max;
William Lallemand50df1cb2020-06-02 10:52:24 +02003826
3827 /* default minimum is TLSV12, */
3828 if (!min) {
3829 if (!max || (max >= default_min_ver)) {
3830 min = default_min_ver;
3831 } else {
3832 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). "
3833 "Setting the ssl-min-ver to %s. Use 'ssl-min-ver' to fix this.\n",
3834 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line, methodVersions[default_min_ver].name, methodVersions[max].name);
3835 min = max;
3836 }
3837 }
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003838 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003839 if (min)
3840 flags |= (methodVersions[min].flag - 1);
3841 if (max)
3842 flags |= ~((methodVersions[max].flag << 1) - 1);
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003843 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003844 min = max = CONF_TLSV_NONE;
3845 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003846 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003847 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003848 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003849 if (min) {
3850 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003851 ha_warning("Proxy '%s': SSL/TLS versions range not contiguous for bind '%s' at [%s:%d]. "
3852 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3853 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line,
3854 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003855 hole = 0;
3856 }
3857 max = i;
3858 }
3859 else {
3860 min = max = i;
3861 }
3862 }
3863 else {
3864 if (min)
3865 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003866 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003867 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003868 ha_alert("Proxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
3869 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003870 cfgerr += 1;
3871 }
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02003872 /* save real min/max in bind_conf */
3873 conf_ssl_methods->min = min;
3874 conf_ssl_methods->max = max;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003875
Willy Tarreau9a1ab082019-05-09 13:26:41 +02003876#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003877 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08003878 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003879 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003880 methodVersions[min].ctx_set_version(ctx, SET_SERVER);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003881 else
William Lallemandd0712f32020-06-11 17:34:00 +02003882 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++) {
3883 /* clear every version flags in case SSL_CTX_new()
3884 * returns an SSL_CTX with disabled versions */
3885 SSL_CTX_clear_options(ctx, methodVersions[i].option);
3886
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003887 if (flags & methodVersions[i].flag)
3888 options |= methodVersions[i].option;
William Lallemandd0712f32020-06-11 17:34:00 +02003889
3890 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003891#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003892 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003893 methodVersions[min].ctx_set_version(ctx, SET_MIN);
3894 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emeric Brunfa5c5c82017-04-28 16:19:51 +02003895#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003896
3897 if (bind_conf->ssl_options & BC_SSL_O_NO_TLS_TICKETS)
3898 options |= SSL_OP_NO_TICKET;
3899 if (bind_conf->ssl_options & BC_SSL_O_PREF_CLIE_CIPH)
3900 options &= ~SSL_OP_CIPHER_SERVER_PREFERENCE;
Dirkjan Bussink526894f2019-01-21 09:35:03 -08003901
3902#ifdef SSL_OP_NO_RENEGOTIATION
3903 options |= SSL_OP_NO_RENEGOTIATION;
3904#endif
3905
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003906 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003907
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05003908#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003909 if (global_ssl.async)
3910 mode |= SSL_MODE_ASYNC;
3911#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003912 SSL_CTX_set_mode(ctx, mode);
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003913 if (global_ssl.life_time)
3914 SSL_CTX_set_timeout(ctx, global_ssl.life_time);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003915
3916#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3917#ifdef OPENSSL_IS_BORINGSSL
3918 SSL_CTX_set_select_certificate_cb(ctx, ssl_sock_switchctx_cbk);
3919 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Ilya Shipitsine9ff8992020-01-19 12:20:14 +05003920#elif defined(SSL_OP_NO_ANTI_REPLAY)
Olivier Houchard545989f2019-12-17 15:39:54 +01003921 if (bind_conf->ssl_conf.early_data)
Olivier Houchard51088ce2019-01-02 18:46:41 +01003922 SSL_CTX_set_options(ctx, SSL_OP_NO_ANTI_REPLAY);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02003923 SSL_CTX_set_client_hello_cb(ctx, ssl_sock_switchctx_cbk, NULL);
3924 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003925#else
3926 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003927#endif
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02003928 SSL_CTX_set_tlsext_servername_arg(ctx, bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003929#endif
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003930 return cfgerr;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003931}
3932
William Lallemand4f45bb92017-10-30 20:08:51 +01003933
3934static inline void sh_ssl_sess_free_blocks(struct shared_block *first, struct shared_block *block)
3935{
3936 if (first == block) {
3937 struct sh_ssl_sess_hdr *sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3938 if (first->len > 0)
3939 sh_ssl_sess_tree_delete(sh_ssl_sess);
3940 }
3941}
3942
3943/* return first block from sh_ssl_sess */
3944static inline struct shared_block *sh_ssl_sess_first_block(struct sh_ssl_sess_hdr *sh_ssl_sess)
3945{
3946 return (struct shared_block *)((unsigned char *)sh_ssl_sess - ((struct shared_block *)NULL)->data);
3947
3948}
3949
3950/* store a session into the cache
3951 * s_id : session id padded with zero to SSL_MAX_SSL_SESSION_ID_LENGTH
3952 * data: asn1 encoded session
3953 * data_len: asn1 encoded session length
3954 * Returns 1 id session was stored (else 0)
3955 */
3956static int sh_ssl_sess_store(unsigned char *s_id, unsigned char *data, int data_len)
3957{
3958 struct shared_block *first;
3959 struct sh_ssl_sess_hdr *sh_ssl_sess, *oldsh_ssl_sess;
3960
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02003961 first = shctx_row_reserve_hot(ssl_shctx, NULL, data_len + sizeof(struct sh_ssl_sess_hdr));
William Lallemand4f45bb92017-10-30 20:08:51 +01003962 if (!first) {
3963 /* Could not retrieve enough free blocks to store that session */
3964 return 0;
3965 }
3966
3967 /* STORE the key in the first elem */
3968 sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3969 memcpy(sh_ssl_sess->key_data, s_id, SSL_MAX_SSL_SESSION_ID_LENGTH);
3970 first->len = sizeof(struct sh_ssl_sess_hdr);
3971
3972 /* it returns the already existing node
3973 or current node if none, never returns null */
3974 oldsh_ssl_sess = sh_ssl_sess_tree_insert(sh_ssl_sess);
3975 if (oldsh_ssl_sess != sh_ssl_sess) {
3976 /* NOTE: Row couldn't be in use because we lock read & write function */
3977 /* release the reserved row */
3978 shctx_row_dec_hot(ssl_shctx, first);
3979 /* replace the previous session already in the tree */
3980 sh_ssl_sess = oldsh_ssl_sess;
3981 /* ignore the previous session data, only use the header */
3982 first = sh_ssl_sess_first_block(sh_ssl_sess);
3983 shctx_row_inc_hot(ssl_shctx, first);
3984 first->len = sizeof(struct sh_ssl_sess_hdr);
3985 }
3986
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02003987 if (shctx_row_data_append(ssl_shctx, first, NULL, data, data_len) < 0) {
William Lallemand99b90af2018-01-03 19:15:51 +01003988 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01003989 return 0;
William Lallemand99b90af2018-01-03 19:15:51 +01003990 }
3991
3992 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01003993
3994 return 1;
3995}
William Lallemanded0b5ad2017-10-30 19:36:36 +01003996
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003997/* SSL callback used when a new session is created while connecting to a server */
3998static int ssl_sess_new_srv_cb(SSL *ssl, SSL_SESSION *sess)
3999{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02004000 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004001 struct server *s;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004002
Willy Tarreau07d94e42018-09-20 10:57:52 +02004003 s = __objt_server(conn->target);
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004004
William Lallemand3ce6eed2021-02-08 10:43:44 +01004005 /* RWLOCK: only read lock the SSL cache even when writing in it because there is
4006 * one cache per thread, it only prevents to flush it from the CLI in
4007 * another thread */
4008
Olivier Houcharde6060c52017-11-16 17:42:52 +01004009 if (!(s->ssl_ctx.options & SRV_SSL_O_NO_REUSE)) {
4010 int len;
4011 unsigned char *ptr;
William Lallemandc78ac5a2021-11-17 02:59:21 +01004012 const char *sni;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004013
Olivier Houcharde6060c52017-11-16 17:42:52 +01004014 len = i2d_SSL_SESSION(sess, NULL);
William Lallemandc78ac5a2021-11-17 02:59:21 +01004015 sni = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
William Lallemand3ce6eed2021-02-08 10:43:44 +01004016 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004017 if (s->ssl_ctx.reused_sess[tid].ptr && s->ssl_ctx.reused_sess[tid].allocated_size >= len) {
4018 ptr = s->ssl_ctx.reused_sess[tid].ptr;
4019 } else {
Willy Tarreau3bda3f42021-02-26 21:05:08 +01004020 ptr = realloc(s->ssl_ctx.reused_sess[tid].ptr, len);
4021 s->ssl_ctx.reused_sess[tid].ptr = ptr;
Olivier Houcharde6060c52017-11-16 17:42:52 +01004022 s->ssl_ctx.reused_sess[tid].allocated_size = len;
4023 }
4024 if (s->ssl_ctx.reused_sess[tid].ptr) {
4025 s->ssl_ctx.reused_sess[tid].size = i2d_SSL_SESSION(sess,
4026 &ptr);
4027 }
William Lallemandc78ac5a2021-11-17 02:59:21 +01004028
4029 if (s->ssl_ctx.reused_sess[tid].sni) {
4030 /* if the new sni is empty or isn' t the same as the old one */
4031 if ((!sni) || strcmp(s->ssl_ctx.reused_sess[tid].sni, sni) != 0) {
4032 ha_free(&s->ssl_ctx.reused_sess[tid].sni);
4033 if (sni)
4034 s->ssl_ctx.reused_sess[tid].sni = strdup(sni);
4035 }
4036 } else if (sni) {
4037 /* if there wasn't an old sni but there is a new one */
4038 s->ssl_ctx.reused_sess[tid].sni = strdup(sni);
4039 }
William Lallemand3ce6eed2021-02-08 10:43:44 +01004040 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004041 } else {
William Lallemand3ce6eed2021-02-08 10:43:44 +01004042 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01004043 ha_free(&s->ssl_ctx.reused_sess[tid].ptr);
William Lallemand3ce6eed2021-02-08 10:43:44 +01004044 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Olivier Houcharde6060c52017-11-16 17:42:52 +01004045 }
4046
4047 return 0;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004048}
4049
Olivier Houcharde6060c52017-11-16 17:42:52 +01004050
William Lallemanded0b5ad2017-10-30 19:36:36 +01004051/* SSL callback used on new session creation */
William Lallemand4f45bb92017-10-30 20:08:51 +01004052int sh_ssl_sess_new_cb(SSL *ssl, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004053{
4054 unsigned char encsess[SHSESS_MAX_DATA_LEN]; /* encoded session */
4055 unsigned char encid[SSL_MAX_SSL_SESSION_ID_LENGTH]; /* encoded id */
4056 unsigned char *p;
4057 int data_len;
Emeric Bruneb469652019-10-08 18:27:37 +02004058 unsigned int sid_length;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004059 const unsigned char *sid_data;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004060
4061 /* Session id is already stored in to key and session id is known
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05004062 * so we don't store it to keep size.
Emeric Bruneb469652019-10-08 18:27:37 +02004063 * note: SSL_SESSION_set1_id is using
4064 * a memcpy so we need to use a different pointer
4065 * than sid_data or sid_ctx_data to avoid valgrind
4066 * complaining.
William Lallemanded0b5ad2017-10-30 19:36:36 +01004067 */
4068
4069 sid_data = SSL_SESSION_get_id(sess, &sid_length);
Emeric Bruneb469652019-10-08 18:27:37 +02004070
4071 /* copy value in an other buffer */
4072 memcpy(encid, sid_data, sid_length);
4073
4074 /* pad with 0 */
4075 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH)
4076 memset(encid + sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH-sid_length);
4077
4078 /* force length to zero to avoid ASN1 encoding */
4079 SSL_SESSION_set1_id(sess, encid, 0);
4080
4081 /* force length to zero to avoid ASN1 encoding */
4082 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, 0);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004083
4084 /* check if buffer is large enough for the ASN1 encoded session */
4085 data_len = i2d_SSL_SESSION(sess, NULL);
4086 if (data_len > SHSESS_MAX_DATA_LEN)
4087 goto err;
4088
4089 p = encsess;
4090
4091 /* process ASN1 session encoding before the lock */
4092 i2d_SSL_SESSION(sess, &p);
4093
William Lallemanded0b5ad2017-10-30 19:36:36 +01004094
William Lallemanda3c77cf2017-10-30 23:44:40 +01004095 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004096 /* store to cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004097 sh_ssl_sess_store(encid, encsess, data_len);
William Lallemanda3c77cf2017-10-30 23:44:40 +01004098 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004099err:
4100 /* reset original length values */
Emeric Bruneb469652019-10-08 18:27:37 +02004101 SSL_SESSION_set1_id(sess, encid, sid_length);
4102 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
William Lallemanded0b5ad2017-10-30 19:36:36 +01004103
4104 return 0; /* do not increment session reference count */
4105}
4106
4107/* SSL callback used on lookup an existing session cause none found in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004108SSL_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 +01004109{
William Lallemand4f45bb92017-10-30 20:08:51 +01004110 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004111 unsigned char data[SHSESS_MAX_DATA_LEN], *p;
4112 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
William Lallemanded0b5ad2017-10-30 19:36:36 +01004113 SSL_SESSION *sess;
William Lallemand4f45bb92017-10-30 20:08:51 +01004114 struct shared_block *first;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004115
Willy Tarreau37d69392021-06-15 16:39:22 +02004116 _HA_ATOMIC_INC(&global.shctx_lookups);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004117
4118 /* allow the session to be freed automatically by openssl */
4119 *do_copy = 0;
4120
4121 /* tree key is zeros padded sessionid */
4122 if (key_len < SSL_MAX_SSL_SESSION_ID_LENGTH) {
4123 memcpy(tmpkey, key, key_len);
4124 memset(tmpkey + key_len, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - key_len);
4125 key = tmpkey;
4126 }
4127
4128 /* lock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004129 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004130
4131 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004132 sh_ssl_sess = sh_ssl_sess_tree_lookup(key);
4133 if (!sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01004134 /* no session found: unlock cache and exit */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004135 shctx_unlock(ssl_shctx);
Willy Tarreau37d69392021-06-15 16:39:22 +02004136 _HA_ATOMIC_INC(&global.shctx_misses);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004137 return NULL;
4138 }
4139
William Lallemand4f45bb92017-10-30 20:08:51 +01004140 /* sh_ssl_sess (shared_block->data) is at the end of shared_block */
4141 first = sh_ssl_sess_first_block(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004142
William Lallemand4f45bb92017-10-30 20:08:51 +01004143 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 +01004144
William Lallemanda3c77cf2017-10-30 23:44:40 +01004145 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004146
4147 /* decode ASN1 session */
4148 p = data;
William Lallemand4f45bb92017-10-30 20:08:51 +01004149 sess = d2i_SSL_SESSION(NULL, (const unsigned char **)&p, first->len-sizeof(struct sh_ssl_sess_hdr));
William Lallemanded0b5ad2017-10-30 19:36:36 +01004150 /* Reset session id and session id contenxt */
4151 if (sess) {
4152 SSL_SESSION_set1_id(sess, key, key_len);
4153 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
4154 }
4155
4156 return sess;
4157}
4158
William Lallemand4f45bb92017-10-30 20:08:51 +01004159
William Lallemanded0b5ad2017-10-30 19:36:36 +01004160/* SSL callback used to signal session is no more used in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004161void sh_ssl_sess_remove_cb(SSL_CTX *ctx, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004162{
William Lallemand4f45bb92017-10-30 20:08:51 +01004163 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004164 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
4165 unsigned int sid_length;
4166 const unsigned char *sid_data;
4167 (void)ctx;
4168
4169 sid_data = SSL_SESSION_get_id(sess, &sid_length);
4170 /* tree key is zeros padded sessionid */
4171 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH) {
4172 memcpy(tmpkey, sid_data, sid_length);
4173 memset(tmpkey+sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - sid_length);
4174 sid_data = tmpkey;
4175 }
4176
William Lallemanda3c77cf2017-10-30 23:44:40 +01004177 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004178
4179 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004180 sh_ssl_sess = sh_ssl_sess_tree_lookup(sid_data);
4181 if (sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01004182 /* free session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004183 sh_ssl_sess_tree_delete(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004184 }
4185
4186 /* unlock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004187 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004188}
4189
4190/* Set session cache mode to server and disable openssl internal cache.
4191 * Set shared cache callbacks on an ssl context.
4192 * Shared context MUST be firstly initialized */
William Lallemand4f45bb92017-10-30 20:08:51 +01004193void ssl_set_shctx(SSL_CTX *ctx)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004194{
4195 SSL_CTX_set_session_id_context(ctx, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
4196
4197 if (!ssl_shctx) {
4198 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
4199 return;
4200 }
4201
4202 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_SERVER |
4203 SSL_SESS_CACHE_NO_INTERNAL |
4204 SSL_SESS_CACHE_NO_AUTO_CLEAR);
4205
4206 /* Set callbacks */
William Lallemand4f45bb92017-10-30 20:08:51 +01004207 SSL_CTX_sess_set_new_cb(ctx, sh_ssl_sess_new_cb);
4208 SSL_CTX_sess_set_get_cb(ctx, sh_ssl_sess_get_cb);
4209 SSL_CTX_sess_set_remove_cb(ctx, sh_ssl_sess_remove_cb);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004210}
William Lallemand7d42ef52020-07-06 11:41:30 +02004211
4212/*
4213 * https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format
4214 *
4215 * The format is:
4216 * * <Label> <space> <ClientRandom> <space> <Secret>
4217 * We only need to copy the secret as there is a sample fetch for the ClientRandom
4218 */
4219
William Lallemandca5cf0a2021-06-09 16:46:12 +02004220#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02004221void SSL_CTX_keylog(const SSL *ssl, const char *line)
4222{
4223 struct ssl_keylog *keylog;
4224 char *lastarg = NULL;
4225 char *dst = NULL;
4226
4227 keylog = SSL_get_ex_data(ssl, ssl_keylog_index);
4228 if (!keylog)
4229 return;
4230
4231 lastarg = strrchr(line, ' ');
4232 if (lastarg == NULL || ++lastarg == NULL)
4233 return;
4234
4235 dst = pool_alloc(pool_head_ssl_keylog_str);
4236 if (!dst)
4237 return;
4238
4239 strncpy(dst, lastarg, SSL_KEYLOG_MAX_SECRET_SIZE-1);
4240 dst[SSL_KEYLOG_MAX_SECRET_SIZE-1] = '\0';
4241
4242 if (strncmp(line, "CLIENT_RANDOM ", strlen("CLIENT RANDOM ")) == 0) {
4243 if (keylog->client_random)
4244 goto error;
4245 keylog->client_random = dst;
4246
4247 } else if (strncmp(line, "CLIENT_EARLY_TRAFFIC_SECRET ", strlen("CLIENT_EARLY_TRAFFIC_SECRET ")) == 0) {
4248 if (keylog->client_early_traffic_secret)
4249 goto error;
4250 keylog->client_early_traffic_secret = dst;
4251
4252 } else if (strncmp(line, "CLIENT_HANDSHAKE_TRAFFIC_SECRET ", strlen("CLIENT_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4253 if(keylog->client_handshake_traffic_secret)
4254 goto error;
4255 keylog->client_handshake_traffic_secret = dst;
4256
4257 } else if (strncmp(line, "SERVER_HANDSHAKE_TRAFFIC_SECRET ", strlen("SERVER_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4258 if (keylog->server_handshake_traffic_secret)
4259 goto error;
4260 keylog->server_handshake_traffic_secret = dst;
4261
4262 } else if (strncmp(line, "CLIENT_TRAFFIC_SECRET_0 ", strlen("CLIENT_TRAFFIC_SECRET_0 ")) == 0) {
4263 if (keylog->client_traffic_secret_0)
4264 goto error;
4265 keylog->client_traffic_secret_0 = dst;
4266
4267 } else if (strncmp(line, "SERVER_TRAFFIC_SECRET_0 ", strlen("SERVER_TRAFFIC_SECRET_0 ")) == 0) {
4268 if (keylog->server_traffic_secret_0)
4269 goto error;
4270 keylog->server_traffic_secret_0 = dst;
4271
4272 } else if (strncmp(line, "EARLY_EXPORTER_SECRET ", strlen("EARLY_EXPORTER_SECRET ")) == 0) {
4273 if (keylog->early_exporter_secret)
4274 goto error;
4275 keylog->early_exporter_secret = dst;
4276
4277 } else if (strncmp(line, "EXPORTER_SECRET ", strlen("EXPORTER_SECRET ")) == 0) {
4278 if (keylog->exporter_secret)
4279 goto error;
4280 keylog->exporter_secret = dst;
4281 } else {
4282 goto error;
4283 }
4284
4285 return;
4286
4287error:
4288 pool_free(pool_head_ssl_keylog_str, dst);
4289
4290 return;
4291}
4292#endif
William Lallemanded0b5ad2017-10-30 19:36:36 +01004293
William Lallemand8b453912019-11-21 15:48:10 +01004294/*
4295 * This function applies the SSL configuration on a SSL_CTX
4296 * It returns an error code and fills the <err> buffer
4297 */
4298int 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 +01004299{
4300 struct proxy *curproxy = bind_conf->frontend;
4301 int cfgerr = 0;
4302 int verify = SSL_VERIFY_NONE;
Willy Tarreau5d4cafb2018-01-04 18:55:19 +01004303 struct ssl_bind_conf __maybe_unused *ssl_conf_cur;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004304 const char *conf_ciphers;
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004305#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004306 const char *conf_ciphersuites;
4307#endif
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004308 const char *conf_curves = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004309
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004310 if (ssl_conf) {
4311 struct tls_version_filter *conf_ssl_methods = &ssl_conf->ssl_methods;
4312 int i, min, max;
4313 int flags = MC_SSL_O_ALL;
4314
4315 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdet43664762017-08-09 18:26:20 +02004316 min = conf_ssl_methods->min ? conf_ssl_methods->min : bind_conf->ssl_conf.ssl_methods.min;
4317 max = conf_ssl_methods->max ? conf_ssl_methods->max : bind_conf->ssl_conf.ssl_methods.max;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004318 if (min)
4319 flags |= (methodVersions[min].flag - 1);
4320 if (max)
4321 flags |= ~((methodVersions[max].flag << 1) - 1);
4322 min = max = CONF_TLSV_NONE;
4323 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4324 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
4325 if (min)
4326 max = i;
4327 else
4328 min = max = i;
4329 }
4330 /* save real min/max */
4331 conf_ssl_methods->min = min;
4332 conf_ssl_methods->max = max;
4333 if (!min) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004334 memprintf(err, "%sProxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
4335 err && *err ? *err : "", bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004336 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004337 }
4338 }
4339
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004340 switch ((ssl_conf && ssl_conf->verify) ? ssl_conf->verify : bind_conf->ssl_conf.verify) {
Emeric Brun850efd52014-01-29 12:24:34 +01004341 case SSL_SOCK_VERIFY_NONE:
4342 verify = SSL_VERIFY_NONE;
4343 break;
4344 case SSL_SOCK_VERIFY_OPTIONAL:
4345 verify = SSL_VERIFY_PEER;
4346 break;
4347 case SSL_SOCK_VERIFY_REQUIRED:
4348 verify = SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
4349 break;
4350 }
4351 SSL_CTX_set_verify(ctx, verify, ssl_sock_bind_verifycbk);
4352 if (verify & SSL_VERIFY_PEER) {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004353 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 +01004354 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 +01004355 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 +01004356 if (ca_file || ca_verify_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004357 /* set CAfile to verify */
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004358 if (ca_file && !ssl_set_verify_locations_file(ctx, ca_file)) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004359 memprintf(err, "%sProxy '%s': unable to set CA file '%s' for bind '%s' at [%s:%d].\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01004360 err && *err ? *err : "", curproxy->id, ca_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004361 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004362 }
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004363 if (ca_verify_file && !ssl_set_verify_locations_file(ctx, ca_verify_file)) {
4364 memprintf(err, "%sProxy '%s': unable to set CA-no-names file '%s' for bind '%s' at [%s:%d].\n",
4365 err && *err ? *err : "", curproxy->id, ca_verify_file, bind_conf->arg, bind_conf->file, bind_conf->line);
4366 cfgerr |= ERR_ALERT | ERR_FATAL;
4367 }
4368 if (ca_file && !((ssl_conf && ssl_conf->no_ca_names) || bind_conf->ssl_conf.no_ca_names)) {
Emmanuel Hocdet174dfe52017-07-28 15:01:05 +02004369 /* set CA names for client cert request, function returns void */
Emmanuel Hocdet129d3282019-10-24 18:08:51 +02004370 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 +02004371 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004372 }
Emeric Brun850efd52014-01-29 12:24:34 +01004373 else {
Tim Duesterhus93128532019-11-23 23:45:10 +01004374 memprintf(err, "%sProxy '%s': verify is enabled but no CA file specified for bind '%s' at [%s:%d].\n",
4375 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004376 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun850efd52014-01-29 12:24:34 +01004377 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004378#ifdef X509_V_FLAG_CRL_CHECK
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004379 if (crl_file) {
Emeric Brund94b3fe2012-09-20 18:23:56 +02004380 X509_STORE *store = SSL_CTX_get_cert_store(ctx);
4381
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004382 if (!ssl_set_cert_crl_file(store, crl_file)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004383 memprintf(err, "%sProxy '%s': unable to configure CRL file '%s' for bind '%s' at [%s:%d].\n",
4384 err && *err ? *err : "", curproxy->id, crl_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004385 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004386 }
Emeric Brun561e5742012-10-02 15:20:55 +02004387 else {
4388 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4389 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004390 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004391#endif
Emeric Brun644cde02012-12-14 11:21:13 +01004392 ERR_clear_error();
Emeric Brund94b3fe2012-09-20 18:23:56 +02004393 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004394#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
Nenad Merdanovic146defa2015-05-09 08:46:00 +02004395 if(bind_conf->keys_ref) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004396 if (!SSL_CTX_set_tlsext_ticket_key_cb(ctx, ssl_tlsext_ticket_key_cb)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004397 memprintf(err, "%sProxy '%s': unable to set callback for TLS ticket validation for bind '%s' at [%s:%d].\n",
4398 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004399 cfgerr |= ERR_ALERT | ERR_FATAL;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004400 }
4401 }
4402#endif
4403
William Lallemand4f45bb92017-10-30 20:08:51 +01004404 ssl_set_shctx(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004405 conf_ciphers = (ssl_conf && ssl_conf->ciphers) ? ssl_conf->ciphers : bind_conf->ssl_conf.ciphers;
4406 if (conf_ciphers &&
4407 !SSL_CTX_set_cipher_list(ctx, conf_ciphers)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004408 memprintf(err, "%sProxy '%s': unable to set SSL cipher list to '%s' for bind '%s' at [%s:%d].\n",
4409 err && *err ? *err : "", curproxy->id, conf_ciphers, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004410 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004411 }
4412
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004413#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004414 conf_ciphersuites = (ssl_conf && ssl_conf->ciphersuites) ? ssl_conf->ciphersuites : bind_conf->ssl_conf.ciphersuites;
4415 if (conf_ciphersuites &&
4416 !SSL_CTX_set_ciphersuites(ctx, conf_ciphersuites)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004417 memprintf(err, "%sProxy '%s': unable to set TLS 1.3 cipher suites to '%s' for bind '%s' at [%s:%d].\n",
4418 err && *err ? *err : "", curproxy->id, conf_ciphersuites, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004419 cfgerr |= ERR_ALERT | ERR_FATAL;
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004420 }
4421#endif
4422
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01004423#ifndef OPENSSL_NO_DH
Remi Gacogne47783ef2015-05-29 15:53:22 +02004424 /* If tune.ssl.default-dh-param has not been set,
4425 neither has ssl-default-dh-file and no static DH
4426 params were in the certificate file. */
Willy Tarreauef934602016-12-22 23:12:01 +01004427 if (global_ssl.default_dh_param == 0 &&
Remi Gacogne47783ef2015-05-29 15:53:22 +02004428 global_dh == NULL &&
Remi Gacogne4f902b82015-05-28 16:23:00 +02004429 (ssl_dh_ptr_index == -1 ||
4430 SSL_CTX_get_ex_data(ctx, ssl_dh_ptr_index) == NULL)) {
Willy Tarreau3ba77d22020-05-08 09:31:18 +02004431 /* default to dh-param 2048 */
4432 global_ssl.default_dh_param = 2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004433 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004434
Willy Tarreauef934602016-12-22 23:12:01 +01004435 if (global_ssl.default_dh_param >= 1024) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004436 if (local_dh_1024 == NULL) {
4437 local_dh_1024 = ssl_get_dh_1024();
4438 }
Willy Tarreauef934602016-12-22 23:12:01 +01004439 if (global_ssl.default_dh_param >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004440 if (local_dh_2048 == NULL) {
4441 local_dh_2048 = ssl_get_dh_2048();
4442 }
Willy Tarreauef934602016-12-22 23:12:01 +01004443 if (global_ssl.default_dh_param >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004444 if (local_dh_4096 == NULL) {
4445 local_dh_4096 = ssl_get_dh_4096();
4446 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004447 }
4448 }
4449 }
4450#endif /* OPENSSL_NO_DH */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004451
Emeric Brunfc0421f2012-09-07 17:30:07 +02004452 SSL_CTX_set_info_callback(ctx, ssl_sock_infocbk);
Ilya Shipitsin7ff77472021-02-08 16:55:06 +05004453#ifdef SSL_CTRL_SET_MSG_CALLBACK
Emeric Brun29f037d2014-04-25 19:05:36 +02004454 SSL_CTX_set_msg_callback(ctx, ssl_sock_msgcbk);
Willy Tarreau5cbe4ef2014-05-08 22:45:11 +02004455#endif
William Lallemandca5cf0a2021-06-09 16:46:12 +02004456#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02004457 SSL_CTX_set_keylog_callback(ctx, SSL_CTX_keylog);
4458#endif
Emeric Brun29f037d2014-04-25 19:05:36 +02004459
Bernard Spil13c53f82018-02-15 13:34:58 +01004460#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004461 ssl_conf_cur = NULL;
4462 if (ssl_conf && ssl_conf->npn_str)
4463 ssl_conf_cur = ssl_conf;
4464 else if (bind_conf->ssl_conf.npn_str)
4465 ssl_conf_cur = &bind_conf->ssl_conf;
4466 if (ssl_conf_cur)
4467 SSL_CTX_set_next_protos_advertised_cb(ctx, ssl_sock_advertise_npn_protos, ssl_conf_cur);
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02004468#endif
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01004469#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004470 ssl_conf_cur = NULL;
4471 if (ssl_conf && ssl_conf->alpn_str)
4472 ssl_conf_cur = ssl_conf;
4473 else if (bind_conf->ssl_conf.alpn_str)
4474 ssl_conf_cur = &bind_conf->ssl_conf;
4475 if (ssl_conf_cur)
4476 SSL_CTX_set_alpn_select_cb(ctx, ssl_sock_advertise_alpn_protos, ssl_conf_cur);
Willy Tarreauab861d32013-04-02 02:30:41 +02004477#endif
Ilya Shipitsin0aa8c292020-11-04 00:39:07 +05004478#if defined(SSL_CTX_set1_curves_list)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004479 conf_curves = (ssl_conf && ssl_conf->curves) ? ssl_conf->curves : bind_conf->ssl_conf.curves;
4480 if (conf_curves) {
4481 if (!SSL_CTX_set1_curves_list(ctx, conf_curves)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004482 memprintf(err, "%sProxy '%s': unable to set SSL curves list to '%s' for bind '%s' at [%s:%d].\n",
4483 err && *err ? *err : "", curproxy->id, conf_curves, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004484 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004485 }
Emmanuel Hocdeta52bb152017-03-20 11:11:49 +01004486 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004487 }
4488#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004489#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004490 if (!conf_curves) {
Emeric Brun2b58d042012-09-20 17:10:03 +02004491 int i;
4492 EC_KEY *ecdh;
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004493#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004494 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
Olivier Houchardc2aae742017-09-22 18:26:28 +02004495 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4496 NULL);
4497
4498 if (ecdhe == NULL) {
Eric Salama3c8bde82019-11-20 11:33:40 +01004499 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Olivier Houchardc2aae742017-09-22 18:26:28 +02004500 return cfgerr;
4501 }
4502#else
4503 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
4504 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4505 ECDHE_DEFAULT_CURVE);
4506#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004507
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004508 i = OBJ_sn2nid(ecdhe);
Emeric Brun2b58d042012-09-20 17:10:03 +02004509 if (!i || ((ecdh = EC_KEY_new_by_curve_name(i)) == NULL)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004510 memprintf(err, "%sProxy '%s': unable to set elliptic named curve to '%s' for bind '%s' at [%s:%d].\n",
4511 err && *err ? *err : "", curproxy->id, ecdhe, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004512 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun2b58d042012-09-20 17:10:03 +02004513 }
4514 else {
4515 SSL_CTX_set_tmp_ecdh(ctx, ecdh);
4516 EC_KEY_free(ecdh);
4517 }
4518 }
4519#endif
4520
Emeric Brunfc0421f2012-09-07 17:30:07 +02004521 return cfgerr;
4522}
4523
Evan Broderbe554312013-06-27 00:05:25 -07004524static int ssl_sock_srv_hostcheck(const char *pattern, const char *hostname)
4525{
4526 const char *pattern_wildcard, *pattern_left_label_end, *hostname_left_label_end;
4527 size_t prefixlen, suffixlen;
4528
4529 /* Trivial case */
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004530 if (strcasecmp(pattern, hostname) == 0)
Evan Broderbe554312013-06-27 00:05:25 -07004531 return 1;
4532
Evan Broderbe554312013-06-27 00:05:25 -07004533 /* The rest of this logic is based on RFC 6125, section 6.4.3
4534 * (http://tools.ietf.org/html/rfc6125#section-6.4.3) */
4535
Emeric Bruna848dae2013-10-08 11:27:28 +02004536 pattern_wildcard = NULL;
4537 pattern_left_label_end = pattern;
4538 while (*pattern_left_label_end != '.') {
4539 switch (*pattern_left_label_end) {
4540 case 0:
4541 /* End of label not found */
4542 return 0;
4543 case '*':
4544 /* If there is more than one wildcards */
4545 if (pattern_wildcard)
4546 return 0;
4547 pattern_wildcard = pattern_left_label_end;
4548 break;
4549 }
4550 pattern_left_label_end++;
4551 }
4552
4553 /* If it's not trivial and there is no wildcard, it can't
4554 * match */
4555 if (!pattern_wildcard)
Evan Broderbe554312013-06-27 00:05:25 -07004556 return 0;
4557
4558 /* Make sure all labels match except the leftmost */
4559 hostname_left_label_end = strchr(hostname, '.');
4560 if (!hostname_left_label_end
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004561 || strcasecmp(pattern_left_label_end, hostname_left_label_end) != 0)
Evan Broderbe554312013-06-27 00:05:25 -07004562 return 0;
4563
4564 /* Make sure the leftmost label of the hostname is long enough
4565 * that the wildcard can match */
Emeric Brun369da852013-10-08 11:39:35 +02004566 if (hostname_left_label_end - hostname < (pattern_left_label_end - pattern) - 1)
Evan Broderbe554312013-06-27 00:05:25 -07004567 return 0;
4568
4569 /* Finally compare the string on either side of the
4570 * wildcard */
4571 prefixlen = pattern_wildcard - pattern;
4572 suffixlen = pattern_left_label_end - (pattern_wildcard + 1);
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004573 if ((prefixlen && (strncasecmp(pattern, hostname, prefixlen) != 0))
4574 || (suffixlen && (strncasecmp(pattern_wildcard + 1, hostname_left_label_end - suffixlen, suffixlen) != 0)))
Evan Broderbe554312013-06-27 00:05:25 -07004575 return 0;
4576
4577 return 1;
4578}
4579
4580static int ssl_sock_srv_verifycbk(int ok, X509_STORE_CTX *ctx)
4581{
4582 SSL *ssl;
4583 struct connection *conn;
Olivier Houchard66ab4982019-02-26 18:37:15 +01004584 struct ssl_sock_ctx *ssl_ctx;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004585 const char *servername;
Willy Tarreau71d058c2017-07-26 20:09:56 +02004586 const char *sni;
Evan Broderbe554312013-06-27 00:05:25 -07004587
4588 int depth;
4589 X509 *cert;
4590 STACK_OF(GENERAL_NAME) *alt_names;
4591 int i;
4592 X509_NAME *cert_subject;
4593 char *str;
4594
4595 if (ok == 0)
4596 return ok;
4597
4598 ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02004599 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard66ab4982019-02-26 18:37:15 +01004600 ssl_ctx = conn->xprt_ctx;
Evan Broderbe554312013-06-27 00:05:25 -07004601
Willy Tarreauad92a9a2017-07-28 11:38:41 +02004602 /* We're checking if the provided hostnames match the desired one. The
4603 * desired hostname comes from the SNI we presented if any, or if not
4604 * provided then it may have been explicitly stated using a "verifyhost"
4605 * directive. If neither is set, we don't care about the name so the
4606 * verification is OK.
Willy Tarreau2ab88672017-07-05 18:23:03 +02004607 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01004608 servername = SSL_get_servername(ssl_ctx->ssl, TLSEXT_NAMETYPE_host_name);
Willy Tarreau71d058c2017-07-26 20:09:56 +02004609 sni = servername;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004610 if (!servername) {
Willy Tarreau07d94e42018-09-20 10:57:52 +02004611 servername = __objt_server(conn->target)->ssl_ctx.verify_host;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004612 if (!servername)
4613 return ok;
4614 }
Evan Broderbe554312013-06-27 00:05:25 -07004615
4616 /* We only need to verify the CN on the actual server cert,
4617 * not the indirect CAs */
4618 depth = X509_STORE_CTX_get_error_depth(ctx);
4619 if (depth != 0)
4620 return ok;
4621
4622 /* At this point, the cert is *not* OK unless we can find a
4623 * hostname match */
4624 ok = 0;
4625
4626 cert = X509_STORE_CTX_get_current_cert(ctx);
4627 /* It seems like this might happen if verify peer isn't set */
4628 if (!cert)
4629 return ok;
4630
4631 alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
4632 if (alt_names) {
4633 for (i = 0; !ok && i < sk_GENERAL_NAME_num(alt_names); i++) {
4634 GENERAL_NAME *name = sk_GENERAL_NAME_value(alt_names, i);
4635 if (name->type == GEN_DNS) {
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004636#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Emeric Bruna33410c2013-09-17 15:47:48 +02004637 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.ia5) >= 0) {
4638#else
Evan Broderbe554312013-06-27 00:05:25 -07004639 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
Emeric Bruna33410c2013-09-17 15:47:48 +02004640#endif
Evan Broderbe554312013-06-27 00:05:25 -07004641 ok = ssl_sock_srv_hostcheck(str, servername);
4642 OPENSSL_free(str);
4643 }
4644 }
4645 }
Emeric Brun4ad50a42013-09-17 15:19:54 +02004646 sk_GENERAL_NAME_pop_free(alt_names, GENERAL_NAME_free);
Evan Broderbe554312013-06-27 00:05:25 -07004647 }
4648
4649 cert_subject = X509_get_subject_name(cert);
4650 i = -1;
4651 while (!ok && (i = X509_NAME_get_index_by_NID(cert_subject, NID_commonName, i)) != -1) {
4652 X509_NAME_ENTRY *entry = X509_NAME_get_entry(cert_subject, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02004653 ASN1_STRING *value;
4654 value = X509_NAME_ENTRY_get_data(entry);
4655 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
Evan Broderbe554312013-06-27 00:05:25 -07004656 ok = ssl_sock_srv_hostcheck(str, servername);
4657 OPENSSL_free(str);
4658 }
4659 }
4660
Willy Tarreau71d058c2017-07-26 20:09:56 +02004661 /* report the mismatch and indicate if SNI was used or not */
4662 if (!ok && !conn->err_code)
4663 conn->err_code = sni ? CO_ER_SSL_MISMATCH_SNI : CO_ER_SSL_MISMATCH;
Evan Broderbe554312013-06-27 00:05:25 -07004664 return ok;
4665}
4666
Emeric Brun94324a42012-10-11 14:00:19 +02004667/* prepare ssl context from servers options. Returns an error count */
Willy Tarreau03209342016-12-22 17:08:28 +01004668int ssl_sock_prepare_srv_ctx(struct server *srv)
Emeric Brun94324a42012-10-11 14:00:19 +02004669{
Willy Tarreau03209342016-12-22 17:08:28 +01004670 struct proxy *curproxy = srv->proxy;
Emeric Brun94324a42012-10-11 14:00:19 +02004671 int cfgerr = 0;
William Lallemand6338b7d2021-12-28 18:47:17 +01004672 SSL_CTX *ctx;
Emeric Brun94324a42012-10-11 14:00:19 +02004673
Thierry Fournier383085f2013-01-24 14:15:43 +01004674 /* Make sure openssl opens /dev/urandom before the chroot */
4675 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004676 ha_alert("OpenSSL random data generator initialization failed.\n");
Thierry Fournier383085f2013-01-24 14:15:43 +01004677 cfgerr++;
4678 }
4679
Willy Tarreaufce03112015-01-15 21:32:40 +01004680 /* Automatic memory computations need to know we use SSL there */
4681 global.ssl_used_backend = 1;
4682
4683 /* Initiate SSL context for current server */
Emeric Brun821bb9b2017-06-15 16:37:39 +02004684 if (!srv->ssl_ctx.reused_sess) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01004685 if ((srv->ssl_ctx.reused_sess = calloc(1, global.nbthread*sizeof(*srv->ssl_ctx.reused_sess))) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004686 ha_alert("Proxy '%s', server '%s' [%s:%d] out of memory.\n",
4687 curproxy->id, srv->id,
4688 srv->conf.file, srv->conf.line);
Emeric Brun821bb9b2017-06-15 16:37:39 +02004689 cfgerr++;
4690 return cfgerr;
4691 }
4692 }
Christopher Fauletf61f33a2020-03-27 18:55:49 +01004693 if (srv->use_ssl == 1)
Emeric Brun94324a42012-10-11 14:00:19 +02004694 srv->xprt = &ssl_sock;
Emeric Brun94324a42012-10-11 14:00:19 +02004695
William Lallemand6338b7d2021-12-28 18:47:17 +01004696 if (srv->ssl_ctx.client_crt) {
4697 char *err = NULL;
4698 int err_code = 0;
4699
4700 /* If there is a crt keyword there, the SSL_CTX will be created here. */
4701 err_code = ssl_sock_load_srv_cert(srv->ssl_ctx.client_crt, srv, &err);
4702 if (err_code != ERR_NONE) {
4703 if ((err_code & ERR_WARN) && !(err_code & ERR_ALERT))
4704 ha_warning("%s", err);
4705 else
4706 ha_alert("%s", err);
4707
4708 if (err_code & (ERR_FATAL|ERR_ABORT))
4709 cfgerr++;
4710 }
4711 ha_free(&err);
4712 }
4713
4714 ctx = srv->ssl_ctx.ctx;
4715
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004716 /* The context will be uninitialized if there wasn't any "cert" option
4717 * in the server line. */
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004718 if (!ctx) {
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004719 ctx = SSL_CTX_new(SSLv23_client_method());
4720 if (!ctx) {
4721 ha_alert("config : %s '%s', server '%s': unable to allocate ssl context.\n",
4722 proxy_type_str(curproxy), curproxy->id,
4723 srv->id);
4724 cfgerr++;
4725 return cfgerr;
4726 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004727
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004728 srv->ssl_ctx.ctx = ctx;
4729 }
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004730
4731 cfgerr += ssl_sock_prepare_srv_ssl_ctx(srv, srv->ssl_ctx.ctx);
4732
4733 return cfgerr;
4734}
4735
4736
4737/* Initialize an SSL context that will be used on the backend side.
4738 * Returns an error count.
4739 */
4740int ssl_sock_prepare_srv_ssl_ctx(const struct server *srv, SSL_CTX *ctx)
4741{
4742 struct proxy *curproxy = srv->proxy;
4743 int cfgerr = 0;
4744 long options =
4745 SSL_OP_ALL | /* all known workarounds for bugs */
4746 SSL_OP_NO_SSLv2 |
4747 SSL_OP_NO_COMPRESSION;
4748 long mode =
4749 SSL_MODE_ENABLE_PARTIAL_WRITE |
4750 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
4751 SSL_MODE_RELEASE_BUFFERS |
4752 SSL_MODE_SMALL_BUFFERS;
4753 int verify = SSL_VERIFY_NONE;
4754 const struct tls_version_filter *conf_ssl_methods = &srv->ssl_ctx.methods;
4755 int i, min, max, hole;
4756 int flags = MC_SSL_O_ALL;
4757
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004758 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01004759 ha_warning("config : %s '%s': no-sslv3/no-tlsv1x are ignored for server '%s'. "
4760 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4761 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004762 else
4763 flags = conf_ssl_methods->flags;
4764
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004765 /* Real min and max should be determinate with configuration and openssl's capabilities */
4766 if (conf_ssl_methods->min)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004767 flags |= (methodVersions[conf_ssl_methods->min].flag - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004768 if (conf_ssl_methods->max)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004769 flags |= ~((methodVersions[conf_ssl_methods->max].flag << 1) - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004770
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004771 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004772 min = max = CONF_TLSV_NONE;
4773 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004774 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004775 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004776 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004777 if (min) {
4778 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004779 ha_warning("config : %s '%s': SSL/TLS versions range not contiguous for server '%s'. "
4780 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4781 proxy_type_str(curproxy), curproxy->id, srv->id,
4782 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004783 hole = 0;
4784 }
4785 max = i;
4786 }
4787 else {
4788 min = max = i;
4789 }
4790 }
4791 else {
4792 if (min)
4793 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004794 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004795 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004796 ha_alert("config : %s '%s': all SSL/TLS versions are disabled for server '%s'.\n",
4797 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004798 cfgerr += 1;
4799 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004800
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004801#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004802 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08004803 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004804 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004805 methodVersions[min].ctx_set_version(ctx, SET_CLIENT);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004806 else
4807 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4808 if (flags & methodVersions[i].flag)
4809 options |= methodVersions[i].option;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004810#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004811 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004812 methodVersions[min].ctx_set_version(ctx, SET_MIN);
4813 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004814#endif
4815
4816 if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLS_TICKETS)
4817 options |= SSL_OP_NO_TICKET;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004818 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004819
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05004820#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004821 if (global_ssl.async)
4822 mode |= SSL_MODE_ASYNC;
4823#endif
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004824 SSL_CTX_set_mode(ctx, mode);
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004825
Emeric Brun850efd52014-01-29 12:24:34 +01004826 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
4827 verify = SSL_VERIFY_PEER;
Emeric Brun850efd52014-01-29 12:24:34 +01004828 switch (srv->ssl_ctx.verify) {
4829 case SSL_SOCK_VERIFY_NONE:
4830 verify = SSL_VERIFY_NONE;
4831 break;
4832 case SSL_SOCK_VERIFY_REQUIRED:
4833 verify = SSL_VERIFY_PEER;
4834 break;
4835 }
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004836 SSL_CTX_set_verify(ctx, verify,
Willy Tarreau2ab88672017-07-05 18:23:03 +02004837 (srv->ssl_ctx.verify_host || (verify & SSL_VERIFY_PEER)) ? ssl_sock_srv_verifycbk : NULL);
Emeric Brun850efd52014-01-29 12:24:34 +01004838 if (verify & SSL_VERIFY_PEER) {
Emeric Brunef42d922012-10-11 16:11:36 +02004839 if (srv->ssl_ctx.ca_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004840 /* set CAfile to verify */
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004841 if (!ssl_set_verify_locations_file(ctx, srv->ssl_ctx.ca_file)) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004842 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to set CA file '%s'.\n",
Christopher Faulet767a84b2017-11-24 16:50:31 +01004843 curproxy->id, srv->id,
4844 srv->conf.file, srv->conf.line, srv->ssl_ctx.ca_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004845 cfgerr++;
4846 }
4847 }
Emeric Brun850efd52014-01-29 12:24:34 +01004848 else {
4849 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
Christopher Faulet767a84b2017-11-24 16:50:31 +01004850 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",
4851 curproxy->id, srv->id,
4852 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004853 else
Christopher Faulet767a84b2017-11-24 16:50:31 +01004854 ha_alert("Proxy '%s', server '%s' [%s:%d] verify is enabled but no CA file specified.\n",
4855 curproxy->id, srv->id,
4856 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004857 cfgerr++;
4858 }
Emeric Brunef42d922012-10-11 16:11:36 +02004859#ifdef X509_V_FLAG_CRL_CHECK
4860 if (srv->ssl_ctx.crl_file) {
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004861 X509_STORE *store = SSL_CTX_get_cert_store(ctx);
Emeric Brunef42d922012-10-11 16:11:36 +02004862
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004863 if (!ssl_set_cert_crl_file(store, srv->ssl_ctx.crl_file)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004864 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to configure CRL file '%s'.\n",
4865 curproxy->id, srv->id,
4866 srv->conf.file, srv->conf.line, srv->ssl_ctx.crl_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004867 cfgerr++;
4868 }
4869 else {
4870 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4871 }
4872 }
4873#endif
4874 }
4875
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004876 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_NO_INTERNAL_STORE);
4877 SSL_CTX_sess_set_new_cb(ctx, ssl_sess_new_srv_cb);
Emeric Brun94324a42012-10-11 14:00:19 +02004878 if (srv->ssl_ctx.ciphers &&
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004879 !SSL_CTX_set_cipher_list(ctx, srv->ssl_ctx.ciphers)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004880 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set SSL cipher list to '%s'.\n",
4881 curproxy->id, srv->id,
4882 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphers);
Emeric Brun94324a42012-10-11 14:00:19 +02004883 cfgerr++;
4884 }
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004885
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004886#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004887 if (srv->ssl_ctx.ciphersuites &&
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004888 !SSL_CTX_set_ciphersuites(ctx, srv->ssl_ctx.ciphersuites)) {
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004889 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set TLS 1.3 cipher suites to '%s'.\n",
4890 curproxy->id, srv->id,
4891 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphersuites);
4892 cfgerr++;
4893 }
4894#endif
Olivier Houchardc7566002018-11-20 23:33:50 +01004895#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
4896 if (srv->ssl_ctx.npn_str)
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004897 SSL_CTX_set_next_proto_select_cb(ctx, ssl_sock_srv_select_protos, (struct server*)srv);
Olivier Houchardc7566002018-11-20 23:33:50 +01004898#endif
4899#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
4900 if (srv->ssl_ctx.alpn_str)
4901 SSL_CTX_set_alpn_protos(ctx, (unsigned char *)srv->ssl_ctx.alpn_str, srv->ssl_ctx.alpn_len);
4902#endif
4903
Emeric Brun94324a42012-10-11 14:00:19 +02004904
4905 return cfgerr;
4906}
4907
Frédéric Lécailleec216522020-11-23 14:33:30 +01004908/*
4909 * Create an initial CTX used to start the SSL connections.
4910 * May be used by QUIC xprt which makes usage of SSL sessions initialized from SSL_CTXs.
4911 * Returns 0 if succeeded, or something >0 if not.
4912 */
4913#ifdef USE_QUIC
4914static int ssl_initial_ctx(struct bind_conf *bind_conf)
4915{
4916 if (bind_conf->xprt == xprt_get(XPRT_QUIC))
4917 return ssl_quic_initial_ctx(bind_conf);
4918 else
4919 return ssl_sock_initial_ctx(bind_conf);
4920}
4921#else
4922static int ssl_initial_ctx(struct bind_conf *bind_conf)
4923{
4924 return ssl_sock_initial_ctx(bind_conf);
4925}
4926#endif
4927
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004928/* Walks down the two trees in bind_conf and prepares all certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02004929 * be NULL, in which case nothing is done. Returns the number of errors
4930 * encountered.
4931 */
Willy Tarreau03209342016-12-22 17:08:28 +01004932int ssl_sock_prepare_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02004933{
4934 struct ebmb_node *node;
4935 struct sni_ctx *sni;
4936 int err = 0;
William Lallemand8b453912019-11-21 15:48:10 +01004937 int errcode = 0;
4938 char *errmsg = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004939
Willy Tarreaufce03112015-01-15 21:32:40 +01004940 /* Automatic memory computations need to know we use SSL there */
4941 global.ssl_used_frontend = 1;
4942
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004943 /* Make sure openssl opens /dev/urandom before the chroot */
4944 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004945 ha_alert("OpenSSL random data generator initialization failed.\n");
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004946 err++;
4947 }
4948 /* Create initial_ctx used to start the ssl connection before do switchctx */
4949 if (!bind_conf->initial_ctx) {
Frédéric Lécailleec216522020-11-23 14:33:30 +01004950 err += ssl_initial_ctx(bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004951 /* It should not be necessary to call this function, but it's
4952 necessary first to check and move all initialisation related
Frédéric Lécailleec216522020-11-23 14:33:30 +01004953 to initial_ctx in ssl_initial_ctx. */
William Lallemand8b453912019-11-21 15:48:10 +01004954 errcode |= ssl_sock_prepare_ctx(bind_conf, NULL, bind_conf->initial_ctx, &errmsg);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004955 }
Emeric Brun0bed9942014-10-30 19:25:24 +01004956 if (bind_conf->default_ctx)
William Lallemand8b453912019-11-21 15:48:10 +01004957 errcode |= ssl_sock_prepare_ctx(bind_conf, bind_conf->default_ssl_conf, bind_conf->default_ctx, &errmsg);
Emeric Brun0bed9942014-10-30 19:25:24 +01004958
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004959 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004960 while (node) {
4961 sni = ebmb_entry(node, struct sni_ctx, name);
Emeric Brun0bed9942014-10-30 19:25:24 +01004962 if (!sni->order && sni->ctx != bind_conf->default_ctx)
4963 /* only initialize the CTX on its first occurrence and
4964 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004965 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004966 node = ebmb_next(node);
4967 }
4968
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004969 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004970 while (node) {
4971 sni = ebmb_entry(node, struct sni_ctx, name);
William Lallemand8b453912019-11-21 15:48:10 +01004972 if (!sni->order && sni->ctx != bind_conf->default_ctx) {
Emeric Brun0bed9942014-10-30 19:25:24 +01004973 /* only initialize the CTX on its first occurrence and
4974 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004975 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
4976 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02004977 node = ebmb_next(node);
4978 }
William Lallemand8b453912019-11-21 15:48:10 +01004979
4980 if (errcode & ERR_WARN) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004981 ha_warning("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004982 } else if (errcode & ERR_CODE) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004983 ha_alert("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004984 err++;
4985 }
4986
4987 free(errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004988 return err;
4989}
4990
Willy Tarreau55d37912016-12-21 23:38:39 +01004991/* Prepares all the contexts for a bind_conf and allocates the shared SSL
4992 * context if needed. Returns < 0 on error, 0 on success. The warnings and
4993 * alerts are directly emitted since the rest of the stack does it below.
4994 */
4995int ssl_sock_prepare_bind_conf(struct bind_conf *bind_conf)
4996{
4997 struct proxy *px = bind_conf->frontend;
4998 int alloc_ctx;
4999 int err;
5000
5001 if (!bind_conf->is_ssl) {
5002 if (bind_conf->default_ctx) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005003 ha_warning("Proxy '%s': A certificate was specified but SSL was not enabled on bind '%s' at [%s:%d] (use 'ssl').\n",
5004 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Willy Tarreau55d37912016-12-21 23:38:39 +01005005 }
5006 return 0;
5007 }
5008 if (!bind_conf->default_ctx) {
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02005009 if (bind_conf->strict_sni && !bind_conf->generate_certs) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005010 ha_warning("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d], ssl connections will fail (use 'crt').\n",
5011 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02005012 }
5013 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005014 ha_alert("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d] (use 'crt').\n",
5015 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02005016 return -1;
5017 }
Willy Tarreau55d37912016-12-21 23:38:39 +01005018 }
William Lallemandc61c0b32017-12-04 18:46:39 +01005019 if (!ssl_shctx && global.tune.sslcachesize) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01005020 alloc_ctx = shctx_init(&ssl_shctx, global.tune.sslcachesize,
Frédéric Lécailleb7838af2018-10-22 16:21:39 +02005021 sizeof(struct sh_ssl_sess_hdr) + SHSESS_BLOCK_MIN_SIZE, -1,
William Lallemandc3cd35f2017-11-28 11:04:43 +01005022 sizeof(*sh_ssl_sess_tree),
5023 ((global.nbthread > 1) || (!global_ssl.private_cache && (global.nbproc > 1))) ? 1 : 0);
Frédéric Lécaille4c8aa112018-10-25 20:22:46 +02005024 if (alloc_ctx <= 0) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01005025 if (alloc_ctx == SHCTX_E_INIT_LOCK)
5026 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");
5027 else
5028 ha_alert("Unable to allocate SSL session cache.\n");
5029 return -1;
5030 }
5031 /* free block callback */
5032 ssl_shctx->free_block = sh_ssl_sess_free_blocks;
5033 /* init the root tree within the extra space */
5034 sh_ssl_sess_tree = (void *)ssl_shctx + sizeof(struct shared_context);
5035 *sh_ssl_sess_tree = EB_ROOT_UNIQUE;
Willy Tarreau55d37912016-12-21 23:38:39 +01005036 }
Willy Tarreau55d37912016-12-21 23:38:39 +01005037 err = 0;
5038 /* initialize all certificate contexts */
5039 err += ssl_sock_prepare_all_ctx(bind_conf);
5040
5041 /* initialize CA variables if the certificates generation is enabled */
5042 err += ssl_sock_load_ca(bind_conf);
5043
5044 return -err;
5045}
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005046
William Lallemand9d118682021-12-30 11:25:43 +01005047/* release ssl context allocated for servers. Most of the field free here
5048 * must also be allocated in srv_ssl_settings_cpy() */
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005049void ssl_sock_free_srv_ctx(struct server *srv)
5050{
Olivier Houchardc7566002018-11-20 23:33:50 +01005051#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
William Lallemand9d118682021-12-30 11:25:43 +01005052 ha_free(&srv->ssl_ctx.alpn_str);
Olivier Houchardc7566002018-11-20 23:33:50 +01005053#endif
Lukas Tribusda95fd92018-11-25 13:21:27 +01005054#ifdef OPENSSL_NPN_NEGOTIATED
William Lallemand9d118682021-12-30 11:25:43 +01005055 ha_free(&srv->ssl_ctx.npn_str);
Lukas Tribus7706b852018-11-26 22:57:17 +01005056#endif
Christopher Faulet58feb492020-10-07 13:20:23 +02005057 if (srv->ssl_ctx.reused_sess) {
5058 int i;
5059
William Lallemandc78ac5a2021-11-17 02:59:21 +01005060 for (i = 0; i < global.nbthread; i++) {
Willy Tarreaue709e822021-02-26 21:06:32 +01005061 ha_free(&srv->ssl_ctx.reused_sess[i].ptr);
William Lallemandc78ac5a2021-11-17 02:59:21 +01005062 ha_free(&srv->ssl_ctx.reused_sess[i].sni);
5063 }
Willy Tarreaue709e822021-02-26 21:06:32 +01005064 ha_free(&srv->ssl_ctx.reused_sess);
Christopher Faulet58feb492020-10-07 13:20:23 +02005065 }
5066
Willy Tarreaue709e822021-02-26 21:06:32 +01005067 if (srv->ssl_ctx.ctx) {
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005068 SSL_CTX_free(srv->ssl_ctx.ctx);
Willy Tarreaue709e822021-02-26 21:06:32 +01005069 srv->ssl_ctx.ctx = NULL;
5070 }
William Lallemand9d118682021-12-30 11:25:43 +01005071
5072 ha_free(&srv->ssl_ctx.ca_file);
5073 ha_free(&srv->ssl_ctx.crl_file);
5074 ha_free(&srv->ssl_ctx.client_crt);
5075 ha_free(&srv->ssl_ctx.verify_host);
5076#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
5077 ha_free(&srv->sni_expr);
5078#endif
5079 ha_free(&srv->ssl_ctx.ciphers);
5080#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
5081 ha_free(&srv->ssl_ctx.ciphersuites);
5082#endif
William Lallemandec3d2d62021-12-30 14:45:19 +01005083 /* If there is a certificate we must unlink the ckch instance */
5084 ckch_inst_free(srv->ssl_ctx.inst);
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005085}
5086
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005087/* Walks down the two trees in bind_conf and frees all the certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02005088 * be NULL, in which case nothing is done. The default_ctx is nullified too.
5089 */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005090void ssl_sock_free_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02005091{
5092 struct ebmb_node *node, *back;
5093 struct sni_ctx *sni;
5094
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005095 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005096 while (node) {
5097 sni = ebmb_entry(node, struct sni_ctx, name);
5098 back = ebmb_next(node);
5099 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02005100 SSL_CTX_free(sni->ctx);
Willy Tarreau2b718102021-04-21 07:32:39 +02005101 LIST_DELETE(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005102 free(sni);
5103 node = back;
5104 }
5105
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005106 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005107 while (node) {
5108 sni = ebmb_entry(node, struct sni_ctx, name);
5109 back = ebmb_next(node);
5110 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02005111 SSL_CTX_free(sni->ctx);
Willy Tarreau2b718102021-04-21 07:32:39 +02005112 LIST_DELETE(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005113 free(sni);
5114 node = back;
5115 }
William Lallemandb2408692020-06-24 09:54:29 +02005116
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01005117 SSL_CTX_free(bind_conf->initial_ctx);
5118 bind_conf->initial_ctx = NULL;
William Lallemand02e19a52020-04-08 16:11:26 +02005119 SSL_CTX_free(bind_conf->default_ctx);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005120 bind_conf->default_ctx = NULL;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01005121 bind_conf->default_ssl_conf = NULL;
Emeric Brune1f38db2012-09-03 20:36:47 +02005122}
William Lallemandb2408692020-06-24 09:54:29 +02005123
5124
5125void ssl_sock_deinit()
5126{
5127 crtlist_deinit(); /* must be free'd before the ckchs */
5128 ckch_deinit();
5129}
5130REGISTER_POST_DEINIT(ssl_sock_deinit);
Emeric Brune1f38db2012-09-03 20:36:47 +02005131
Willy Tarreau795cdab2016-12-22 17:30:54 +01005132/* Destroys all the contexts for a bind_conf. This is used during deinit(). */
5133void ssl_sock_destroy_bind_conf(struct bind_conf *bind_conf)
5134{
5135 ssl_sock_free_ca(bind_conf);
5136 ssl_sock_free_all_ctx(bind_conf);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01005137 ssl_sock_free_ssl_conf(&bind_conf->ssl_conf);
Willy Tarreau795cdab2016-12-22 17:30:54 +01005138 free(bind_conf->ca_sign_file);
5139 free(bind_conf->ca_sign_pass);
Willy Tarreau17b4aa12018-07-17 10:05:32 +02005140 if (bind_conf->keys_ref && !--bind_conf->keys_ref->refcount) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01005141 free(bind_conf->keys_ref->filename);
5142 free(bind_conf->keys_ref->tlskeys);
Willy Tarreau2b718102021-04-21 07:32:39 +02005143 LIST_DELETE(&bind_conf->keys_ref->list);
Willy Tarreau795cdab2016-12-22 17:30:54 +01005144 free(bind_conf->keys_ref);
5145 }
5146 bind_conf->keys_ref = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01005147 bind_conf->ca_sign_pass = NULL;
5148 bind_conf->ca_sign_file = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01005149}
5150
Christopher Faulet31af49d2015-06-09 17:29:50 +02005151/* Load CA cert file and private key used to generate certificates */
5152int
Willy Tarreau03209342016-12-22 17:08:28 +01005153ssl_sock_load_ca(struct bind_conf *bind_conf)
Christopher Faulet31af49d2015-06-09 17:29:50 +02005154{
Willy Tarreau03209342016-12-22 17:08:28 +01005155 struct proxy *px = bind_conf->frontend;
Shimi Gersner5846c492020-08-23 13:58:12 +03005156 struct cert_key_and_chain *ckch = NULL;
5157 int ret = 0;
5158 char *err = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005159
Christopher Fauletf8bb0ce2017-09-15 09:52:49 +02005160 if (!bind_conf->generate_certs)
Shimi Gersner5846c492020-08-23 13:58:12 +03005161 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005162
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005163#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02005164 if (global_ssl.ctx_cache) {
Willy Tarreauef934602016-12-22 23:12:01 +01005165 ssl_ctx_lru_tree = lru64_new(global_ssl.ctx_cache);
Emeric Brun821bb9b2017-06-15 16:37:39 +02005166 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02005167 ssl_ctx_lru_seed = (unsigned int)time(NULL);
Emeric Brun821bb9b2017-06-15 16:37:39 +02005168 ssl_ctx_serial = now_ms;
Willy Tarreaua84c2672015-10-09 12:10:13 +02005169#endif
Christopher Fauletd2cab922015-07-28 16:03:47 +02005170
Christopher Faulet31af49d2015-06-09 17:29:50 +02005171 if (!bind_conf->ca_sign_file) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005172 ha_alert("Proxy '%s': cannot enable certificate generation, "
5173 "no CA certificate File configured at [%s:%d].\n",
5174 px->id, bind_conf->file, bind_conf->line);
Shimi Gersner5846c492020-08-23 13:58:12 +03005175 goto failed;
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02005176 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005177
Shimi Gersner5846c492020-08-23 13:58:12 +03005178 /* Allocate cert structure */
Tim Duesterhuse52b6e52020-09-12 20:26:43 +02005179 ckch = calloc(1, sizeof(*ckch));
Shimi Gersner5846c492020-08-23 13:58:12 +03005180 if (!ckch) {
5181 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain allocation failure\n",
5182 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line);
5183 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005184 }
Shimi Gersner5846c492020-08-23 13:58:12 +03005185
5186 /* Try to parse file */
5187 if (ssl_sock_load_files_into_ckch(bind_conf->ca_sign_file, ckch, &err)) {
5188 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain loading failed: %s\n",
5189 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line, err);
Willy Tarreau01acf562021-02-26 21:12:15 +01005190 free(err);
Shimi Gersner5846c492020-08-23 13:58:12 +03005191 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005192 }
Shimi Gersner5846c492020-08-23 13:58:12 +03005193
5194 /* Fail if missing cert or pkey */
5195 if ((!ckch->cert) || (!ckch->key)) {
5196 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain missing certificate or private key\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 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005200
Shimi Gersner5846c492020-08-23 13:58:12 +03005201 /* Final assignment to bind */
5202 bind_conf->ca_sign_ckch = ckch;
5203 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005204
Shimi Gersner5846c492020-08-23 13:58:12 +03005205 failed:
5206 if (ckch) {
5207 ssl_sock_free_cert_key_and_chain_contents(ckch);
5208 free(ckch);
5209 }
5210
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02005211 bind_conf->generate_certs = 0;
Shimi Gersner5846c492020-08-23 13:58:12 +03005212 ret++;
5213 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005214}
5215
5216/* Release CA cert and private key used to generate certificated */
5217void
5218ssl_sock_free_ca(struct bind_conf *bind_conf)
5219{
Shimi Gersner5846c492020-08-23 13:58:12 +03005220 if (bind_conf->ca_sign_ckch) {
5221 ssl_sock_free_cert_key_and_chain_contents(bind_conf->ca_sign_ckch);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01005222 ha_free(&bind_conf->ca_sign_ckch);
Shimi Gersner5846c492020-08-23 13:58:12 +03005223 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005224}
5225
Emeric Brun46591952012-05-18 15:47:34 +02005226/*
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005227 * Try to allocate the BIO and SSL session objects of <conn> connection with <bio> and
5228 * <ssl> as addresses, <bio_meth> as BIO method and <ssl_ctx> as SSL context inherited settings.
5229 * Connect the allocated BIO to the allocated SSL session. Also set <ctx> as address of custom
5230 * data for the BIO and store <conn> as user data of the SSL session object.
Ilya Shipitsin1e9a6662021-01-05 22:10:46 +05005231 * This is the responsibility of the caller to check the validity of all the pointers passed
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005232 * as parameters to this function.
5233 * Return 0 if succeeded, -1 if not. If failed, sets the ->err_code member of <conn> to
5234 * CO_ER_SSL_NO_MEM.
5235 */
5236int ssl_bio_and_sess_init(struct connection *conn, SSL_CTX *ssl_ctx,
5237 SSL **ssl, BIO **bio, BIO_METHOD *bio_meth, void *ctx)
5238{
5239 int retry = 1;
5240
5241 retry:
5242 /* Alloc a new SSL session. */
5243 *ssl = SSL_new(ssl_ctx);
5244 if (!*ssl) {
5245 if (!retry--)
5246 goto err;
5247
5248 pool_gc(NULL);
5249 goto retry;
5250 }
5251
5252 *bio = BIO_new(bio_meth);
5253 if (!*bio) {
5254 SSL_free(*ssl);
5255 *ssl = NULL;
5256 if (!retry--)
5257 goto err;
5258
5259 pool_gc(NULL);
5260 goto retry;
5261 }
5262
5263 BIO_set_data(*bio, ctx);
5264 SSL_set_bio(*ssl, *bio, *bio);
5265
5266 /* set connection pointer. */
5267 if (!SSL_set_ex_data(*ssl, ssl_app_data_index, conn)) {
5268 SSL_free(*ssl);
5269 *ssl = NULL;
5270 if (!retry--)
5271 goto err;
5272
5273 pool_gc(NULL);
5274 goto retry;
5275 }
5276
5277 return 0;
5278
5279 err:
5280 conn->err_code = CO_ER_SSL_NO_MEM;
5281 return -1;
5282}
5283
Olivier Houchardbc5ce922021-03-05 23:47:00 +01005284/* This function is called when all the XPRT have been initialized. We can
5285 * now attempt to start the SSL handshake.
5286 */
5287static int ssl_sock_start(struct connection *conn, void *xprt_ctx)
5288{
5289 struct ssl_sock_ctx *ctx = xprt_ctx;
5290
5291 if (ctx->xprt->start) {
5292 int ret;
5293
5294 ret = ctx->xprt->start(conn, ctx->xprt_ctx);
5295 if (ret < 0)
5296 return ret;
5297 }
5298 tasklet_wakeup(ctx->wait_event.tasklet);
5299
5300 return 0;
5301}
5302
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005303/*
Emeric Brun46591952012-05-18 15:47:34 +02005304 * This function is called if SSL * context is not yet allocated. The function
5305 * is designed to be called before any other data-layer operation and sets the
5306 * handshake flag on the connection. It is safe to call it multiple times.
5307 * It returns 0 on success and -1 in error case.
5308 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005309static int ssl_sock_init(struct connection *conn, void **xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005310{
Olivier Houchard66ab4982019-02-26 18:37:15 +01005311 struct ssl_sock_ctx *ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005312 /* already initialized */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005313 if (*xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005314 return 0;
5315
Olivier Houchard66ab4982019-02-26 18:37:15 +01005316 ctx = pool_alloc(ssl_sock_ctx_pool);
5317 if (!ctx) {
5318 conn->err_code = CO_ER_SSL_NO_MEM;
5319 return -1;
5320 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005321 ctx->wait_event.tasklet = tasklet_new();
5322 if (!ctx->wait_event.tasklet) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005323 conn->err_code = CO_ER_SSL_NO_MEM;
5324 pool_free(ssl_sock_ctx_pool, ctx);
5325 return -1;
5326 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005327 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
5328 ctx->wait_event.tasklet->context = ctx;
Willy Tarreau9205ab32021-02-25 15:31:00 +01005329 ctx->wait_event.tasklet->state |= TASK_HEAVY; // assign it to the bulk queue during handshake
Olivier Houchardea8dd942019-05-20 14:02:16 +02005330 ctx->wait_event.events = 0;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005331 ctx->sent_early_data = 0;
Olivier Houchard54907bb2019-12-19 15:02:39 +01005332 ctx->early_buf = BUF_NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02005333 ctx->conn = conn;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005334 ctx->subs = NULL;
Emeric Brun5762a0d2019-09-06 15:36:02 +02005335 ctx->xprt_st = 0;
5336 ctx->xprt_ctx = NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02005337
5338 /* Only work with sockets for now, this should be adapted when we'll
5339 * add QUIC support.
5340 */
5341 ctx->xprt = xprt_get(XPRT_RAW);
Olivier Houchard19afb272019-05-23 18:24:07 +02005342 if (ctx->xprt->init) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005343 if (ctx->xprt->init(conn, &ctx->xprt_ctx) != 0)
5344 goto err;
Olivier Houchard19afb272019-05-23 18:24:07 +02005345 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005346
Willy Tarreau20879a02012-12-03 16:32:10 +01005347 if (global.maxsslconn && sslconns >= global.maxsslconn) {
5348 conn->err_code = CO_ER_SSL_TOO_MANY;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005349 goto err;
Willy Tarreau20879a02012-12-03 16:32:10 +01005350 }
Willy Tarreau403edff2012-09-06 11:58:37 +02005351
Emeric Brun46591952012-05-18 15:47:34 +02005352 /* If it is in client mode initiate SSL session
5353 in connect state otherwise accept state */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01005354 if (objt_server(conn->target)) {
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005355 if (ssl_bio_and_sess_init(conn, __objt_server(conn->target)->ssl_ctx.ctx,
5356 &ctx->ssl, &ctx->bio, ha_meth, ctx) == -1)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005357 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005358
Olivier Houchard66ab4982019-02-26 18:37:15 +01005359 SSL_set_connect_state(ctx->ssl);
William Lallemand3ce6eed2021-02-08 10:43:44 +01005360 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &(__objt_server(conn->target)->ssl_ctx.lock));
Willy Tarreau07d94e42018-09-20 10:57:52 +02005361 if (__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr) {
5362 const unsigned char *ptr = __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr;
5363 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 +01005364 if (sess && !SSL_set_session(ctx->ssl, sess)) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01005365 SSL_SESSION_free(sess);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01005366 ha_free(&__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr);
Olivier Houcharde6060c52017-11-16 17:42:52 +01005367 } else if (sess) {
5368 SSL_SESSION_free(sess);
Emeric Brun55476152014-11-12 17:35:37 +01005369 }
5370 }
William Lallemand3ce6eed2021-02-08 10:43:44 +01005371 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &(__objt_server(conn->target)->ssl_ctx.lock));
Evan Broderbe554312013-06-27 00:05:25 -07005372
Emeric Brun46591952012-05-18 15:47:34 +02005373 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005374 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Willy Tarreau403edff2012-09-06 11:58:37 +02005375
Willy Tarreau4781b152021-04-06 13:53:36 +02005376 _HA_ATOMIC_INC(&sslconns);
5377 _HA_ATOMIC_INC(&totalsslconns);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005378 *xprt_ctx = ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005379 return 0;
5380 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +01005381 else if (objt_listener(conn->target)) {
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005382 struct bind_conf *bc = __objt_listener(conn->target)->bind_conf;
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005383
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005384 if (ssl_bio_and_sess_init(conn, bc->initial_ctx,
5385 &ctx->ssl, &ctx->bio, ha_meth, ctx) == -1)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005386 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005387
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005388#ifdef SSL_READ_EARLY_DATA_SUCCESS
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005389 if (bc->ssl_conf.early_data) {
Frédéric Lécaille3139c1b2020-01-24 14:56:18 +01005390 b_alloc(&ctx->early_buf);
5391 SSL_set_max_early_data(ctx->ssl,
5392 /* Only allow early data if we managed to allocate
5393 * a buffer.
5394 */
5395 (!b_is_null(&ctx->early_buf)) ?
5396 global.tune.bufsize - global.tune.maxrewrite : 0);
5397 }
5398#endif
5399
Olivier Houchard66ab4982019-02-26 18:37:15 +01005400 SSL_set_accept_state(ctx->ssl);
Emeric Brune1f38db2012-09-03 20:36:47 +02005401
Emeric Brun46591952012-05-18 15:47:34 +02005402 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005403 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005404#ifdef SSL_READ_EARLY_DATA_SUCCESS
Willy Tarreaua84986a2021-02-03 11:21:38 +01005405 if (bc->ssl_conf.early_data)
5406 conn->flags |= CO_FL_EARLY_SSL_HS;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005407#endif
Willy Tarreau403edff2012-09-06 11:58:37 +02005408
Willy Tarreau4781b152021-04-06 13:53:36 +02005409 _HA_ATOMIC_INC(&sslconns);
5410 _HA_ATOMIC_INC(&totalsslconns);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005411 *xprt_ctx = ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005412 return 0;
5413 }
5414 /* don't know how to handle such a target */
Willy Tarreau20879a02012-12-03 16:32:10 +01005415 conn->err_code = CO_ER_SSL_NO_TARGET;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005416err:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005417 if (ctx && ctx->wait_event.tasklet)
5418 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01005419 pool_free(ssl_sock_ctx_pool, ctx);
Emeric Brun46591952012-05-18 15:47:34 +02005420 return -1;
5421}
5422
5423
5424/* This is the callback which is used when an SSL handshake is pending. It
5425 * updates the FD status if it wants some polling before being called again.
5426 * It returns 0 if it fails in a fatal way or needs to poll to go further,
5427 * otherwise it returns non-zero and removes itself from the connection's
5428 * flags (the bit is provided in <flag> by the caller).
5429 */
Olivier Houchard000694c2019-05-23 14:45:12 +02005430static int ssl_sock_handshake(struct connection *conn, unsigned int flag)
Emeric Brun46591952012-05-18 15:47:34 +02005431{
Olivier Houchard66ab4982019-02-26 18:37:15 +01005432 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005433 int ret;
Willy Tarreau42995282020-11-06 13:19:18 +01005434 struct ssl_counters *counters = NULL;
5435 struct ssl_counters *counters_px = NULL;
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005436 struct listener *li;
5437 struct server *srv;
Willy Tarreau06300382021-02-02 15:42:25 +01005438 socklen_t lskerr;
5439 int skerr;
5440
Emeric Brun46591952012-05-18 15:47:34 +02005441
Willy Tarreau3c728722014-01-23 13:50:42 +01005442 if (!conn_ctrl_ready(conn))
Willy Tarreauf79c8172013-10-21 16:30:56 +02005443 return 0;
5444
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005445 /* get counters */
5446 switch (obj_type(conn->target)) {
5447 case OBJ_TYPE_LISTENER:
5448 li = objt_listener(conn->target);
5449 counters = EXTRA_COUNTERS_GET(li->extra_counters, &ssl_stats_module);
5450 counters_px = EXTRA_COUNTERS_GET(li->bind_conf->frontend->extra_counters_fe,
5451 &ssl_stats_module);
5452 break;
5453
5454 case OBJ_TYPE_SERVER:
5455 srv = objt_server(conn->target);
5456 counters = EXTRA_COUNTERS_GET(srv->extra_counters, &ssl_stats_module);
5457 counters_px = EXTRA_COUNTERS_GET(srv->proxy->extra_counters_be,
5458 &ssl_stats_module);
5459 break;
5460
5461 default:
5462 break;
5463 }
5464
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02005465 if (!conn->xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005466 goto out_error;
5467
Willy Tarreau06300382021-02-02 15:42:25 +01005468 /* don't start calculating a handshake on a dead connection */
5469 if (conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH))
5470 goto out_error;
5471
5472 /* FIXME/WT: for now we don't have a clear way to inspect the connection
5473 * status from the lower layers, so let's check the FD directly. Ideally
5474 * the xprt layers should provide some status indicating their knowledge
5475 * of shutdowns or error.
5476 */
5477 skerr = 0;
5478 lskerr = sizeof(skerr);
5479 if ((getsockopt(conn->handle.fd, SOL_SOCKET, SO_ERROR, &skerr, &lskerr) < 0) ||
5480 skerr != 0)
5481 goto out_error;
5482
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005483#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005484 /*
5485 * Check if we have early data. If we do, we have to read them
5486 * before SSL_do_handshake() is called, And there's no way to
5487 * detect early data, except to try to read them
5488 */
5489 if (conn->flags & CO_FL_EARLY_SSL_HS) {
Olivier Houchard54907bb2019-12-19 15:02:39 +01005490 size_t read_data = 0;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005491
Olivier Houchard54907bb2019-12-19 15:02:39 +01005492 while (1) {
5493 ret = SSL_read_early_data(ctx->ssl,
5494 b_tail(&ctx->early_buf), b_room(&ctx->early_buf),
5495 &read_data);
5496 if (ret == SSL_READ_EARLY_DATA_ERROR)
5497 goto check_error;
5498 if (read_data > 0) {
5499 conn->flags |= CO_FL_EARLY_DATA;
5500 b_add(&ctx->early_buf, read_data);
5501 }
5502 if (ret == SSL_READ_EARLY_DATA_FINISH) {
5503 conn->flags &= ~CO_FL_EARLY_SSL_HS;
5504 if (!b_data(&ctx->early_buf))
5505 b_free(&ctx->early_buf);
5506 break;
5507 }
5508 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02005509 }
5510#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005511 /* If we use SSL_do_handshake to process a reneg initiated by
5512 * the remote peer, it sometimes returns SSL_ERROR_SSL.
5513 * Usually SSL_write and SSL_read are used and process implicitly
5514 * the reneg handshake.
5515 * Here we use SSL_peek as a workaround for reneg.
5516 */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01005517 if (!(conn->flags & CO_FL_WAIT_L6_CONN) && SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005518 char c;
5519
Olivier Houchard66ab4982019-02-26 18:37:15 +01005520 ret = SSL_peek(ctx->ssl, &c, 1);
Emeric Brun674b7432012-11-08 19:21:55 +01005521 if (ret <= 0) {
5522 /* handshake may have not been completed, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005523 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005524
Emeric Brun674b7432012-11-08 19:21:55 +01005525 if (ret == SSL_ERROR_WANT_WRITE) {
5526 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005527 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005528 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005529 return 0;
5530 }
5531 else if (ret == SSL_ERROR_WANT_READ) {
5532 /* handshake may have been completed but we have
5533 * no more data to read.
5534 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005535 if (!SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005536 ret = 1;
5537 goto reneg_ok;
5538 }
5539 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005540 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005541 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005542 return 0;
5543 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005544#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005545 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005546 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005547 return 0;
5548 }
5549#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005550 else if (ret == SSL_ERROR_SYSCALL) {
5551 /* if errno is null, then connection was successfully established */
5552 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5553 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Willy Tarreau20879a02012-12-03 16:32:10 +01005554 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005555#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5556 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005557 conn->err_code = CO_ER_SSL_HANDSHAKE;
5558#else
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005559 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005560#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005561 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005562 OSSL_HANDSHAKE_STATE state = SSL_get_state((SSL *)ctx->ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005563 empty_handshake = state == TLS_ST_BEFORE;
5564#else
Lukas Tribus49799162019-07-08 14:29:15 +02005565 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5566 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005567#endif
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005568 if (empty_handshake) {
Emeric Brun29f037d2014-04-25 19:05:36 +02005569 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005570 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005571 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5572 else
5573 conn->err_code = CO_ER_SSL_EMPTY;
5574 }
5575 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005576 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005577 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5578 else
5579 conn->err_code = CO_ER_SSL_ABORT;
5580 }
5581 }
5582 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005583 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005584 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
Willy Tarreau20879a02012-12-03 16:32:10 +01005585 else
Emeric Brun29f037d2014-04-25 19:05:36 +02005586 conn->err_code = CO_ER_SSL_HANDSHAKE;
5587 }
Lukas Tribus49799162019-07-08 14:29:15 +02005588#endif /* BoringSSL or LibreSSL */
Willy Tarreau20879a02012-12-03 16:32:10 +01005589 }
Emeric Brun674b7432012-11-08 19:21:55 +01005590 goto out_error;
5591 }
5592 else {
5593 /* Fail on all other handshake errors */
5594 /* Note: OpenSSL may leave unread bytes in the socket's
5595 * buffer, causing an RST to be emitted upon close() on
5596 * TCP sockets. We first try to drain possibly pending
5597 * data to avoid this as much as possible.
5598 */
Willy Tarreau2ded48d2020-12-11 16:20:34 +01005599 conn_ctrl_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005600 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005601 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005602 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun674b7432012-11-08 19:21:55 +01005603 goto out_error;
5604 }
5605 }
5606 /* read some data: consider handshake completed */
5607 goto reneg_ok;
5608 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005609 ret = SSL_do_handshake(ctx->ssl);
Olivier Houchardc2aae742017-09-22 18:26:28 +02005610check_error:
Emeric Brun46591952012-05-18 15:47:34 +02005611 if (ret != 1) {
5612 /* handshake did not complete, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005613 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005614
5615 if (ret == SSL_ERROR_WANT_WRITE) {
5616 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005617 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005618 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005619 return 0;
5620 }
5621 else if (ret == SSL_ERROR_WANT_READ) {
5622 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchardea8dd942019-05-20 14:02:16 +02005623 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005624 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
5625 SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005626 return 0;
5627 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005628#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005629 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005630 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005631 return 0;
5632 }
5633#endif
Willy Tarreau89230192012-09-28 20:22:13 +02005634 else if (ret == SSL_ERROR_SYSCALL) {
5635 /* if errno is null, then connection was successfully established */
5636 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5637 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005638 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005639#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5640 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005641 conn->err_code = CO_ER_SSL_HANDSHAKE;
5642#else
5643 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005644#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005645 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005646 OSSL_HANDSHAKE_STATE state = SSL_get_state(ctx->ssl);
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005647 empty_handshake = state == TLS_ST_BEFORE;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005648#else
Lukas Tribus49799162019-07-08 14:29:15 +02005649 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5650 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005651#endif
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005652 if (empty_handshake) {
5653 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005654 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005655 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5656 else
5657 conn->err_code = CO_ER_SSL_EMPTY;
5658 }
5659 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005660 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005661 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5662 else
5663 conn->err_code = CO_ER_SSL_ABORT;
5664 }
Emeric Brun29f037d2014-04-25 19:05:36 +02005665 }
5666 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005667 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005668 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5669 else
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005670 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun29f037d2014-04-25 19:05:36 +02005671 }
Lukas Tribus49799162019-07-08 14:29:15 +02005672#endif /* BoringSSL or LibreSSL */
Emeric Brun29f037d2014-04-25 19:05:36 +02005673 }
Willy Tarreau89230192012-09-28 20:22:13 +02005674 goto out_error;
5675 }
Emeric Brun46591952012-05-18 15:47:34 +02005676 else {
5677 /* Fail on all other handshake errors */
Willy Tarreau566dc552012-10-19 20:52:18 +02005678 /* Note: OpenSSL may leave unread bytes in the socket's
5679 * buffer, causing an RST to be emitted upon close() on
5680 * TCP sockets. We first try to drain possibly pending
5681 * data to avoid this as much as possible.
5682 */
Willy Tarreau2ded48d2020-12-11 16:20:34 +01005683 conn_ctrl_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005684 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005685 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005686 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005687 goto out_error;
5688 }
5689 }
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005690#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard522eea72017-11-03 16:27:47 +01005691 else {
5692 /*
5693 * If the server refused the early data, we have to send a
5694 * 425 to the client, as we no longer have the data to sent
5695 * them again.
5696 */
5697 if ((conn->flags & CO_FL_EARLY_DATA) && (objt_server(conn->target))) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005698 if (SSL_get_early_data_status(ctx->ssl) == SSL_EARLY_DATA_REJECTED) {
Olivier Houchard522eea72017-11-03 16:27:47 +01005699 conn->err_code = CO_ER_SSL_EARLY_FAILED;
5700 goto out_error;
5701 }
5702 }
5703 }
5704#endif
5705
Emeric Brun46591952012-05-18 15:47:34 +02005706
Emeric Brun674b7432012-11-08 19:21:55 +01005707reneg_ok:
Emeric Brunb5e42a82017-06-06 12:35:14 +00005708
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005709#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005710 /* ASYNC engine API doesn't support moving read/write
5711 * buffers. So we disable ASYNC mode right after
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05005712 * the handshake to avoid buffer overflow.
Emeric Brunb5e42a82017-06-06 12:35:14 +00005713 */
5714 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005715 SSL_clear_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005716#endif
Emeric Brun46591952012-05-18 15:47:34 +02005717 /* Handshake succeeded */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005718 if (!SSL_session_reused(ctx->ssl)) {
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005719 if (objt_server(conn->target)) {
5720 update_freq_ctr(&global.ssl_be_keys_per_sec, 1);
5721 if (global.ssl_be_keys_per_sec.curr_ctr > global.ssl_be_keys_max)
5722 global.ssl_be_keys_max = global.ssl_be_keys_per_sec.curr_ctr;
Emeric Brun46591952012-05-18 15:47:34 +02005723 }
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005724 else {
5725 update_freq_ctr(&global.ssl_fe_keys_per_sec, 1);
5726 if (global.ssl_fe_keys_per_sec.curr_ctr > global.ssl_fe_keys_max)
5727 global.ssl_fe_keys_max = global.ssl_fe_keys_per_sec.curr_ctr;
5728 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005729
Willy Tarreau42995282020-11-06 13:19:18 +01005730 if (counters) {
Willy Tarreau41736ab2021-11-22 17:46:13 +01005731 HA_ATOMIC_INC(&counters->sess);
5732 HA_ATOMIC_INC(&counters_px->sess);
Willy Tarreau42995282020-11-06 13:19:18 +01005733 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005734 }
Willy Tarreau42995282020-11-06 13:19:18 +01005735 else if (counters) {
Willy Tarreau41736ab2021-11-22 17:46:13 +01005736 HA_ATOMIC_INC(&counters->reused_sess);
5737 HA_ATOMIC_INC(&counters_px->reused_sess);
Emeric Brun46591952012-05-18 15:47:34 +02005738 }
5739
5740 /* The connection is now established at both layers, it's time to leave */
5741 conn->flags &= ~(flag | CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN);
5742 return 1;
5743
5744 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01005745 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005746 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005747 ERR_clear_error();
5748
Emeric Brun9fa89732012-10-04 17:09:56 +02005749 /* free resumed session if exists */
William Lallemand3ce6eed2021-02-08 10:43:44 +01005750 if (objt_server(conn->target)) {
5751 struct server *s = __objt_server(conn->target);
5752 /* RWLOCK: only rdlock the SSL cache even when writing in it because there is
5753 * one cache per thread, it only prevents to flush it from the CLI in
5754 * another thread */
5755
5756 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Willy Tarreau61cfdf42021-02-20 10:46:51 +01005757 if (s->ssl_ctx.reused_sess[tid].ptr)
5758 ha_free(&s->ssl_ctx.reused_sess[tid].ptr);
William Lallemand3ce6eed2021-02-08 10:43:44 +01005759 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Emeric Brun9fa89732012-10-04 17:09:56 +02005760 }
5761
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005762 if (counters) {
Willy Tarreau41736ab2021-11-22 17:46:13 +01005763 HA_ATOMIC_INC(&counters->failed_handshake);
5764 HA_ATOMIC_INC(&counters_px->failed_handshake);
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005765 }
5766
Emeric Brun46591952012-05-18 15:47:34 +02005767 /* Fail on all other handshake errors */
5768 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01005769 if (!conn->err_code)
5770 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005771 return 0;
5772}
5773
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005774/* Called from the upper layer, to subscribe <es> to events <event_type>. The
5775 * event subscriber <es> is not allowed to change from a previous call as long
5776 * as at least one event is still subscribed. The <event_type> must only be a
5777 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0,
5778 * unless the transport layer was already released.
5779 */
5780static int ssl_subscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005781{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005782 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005783
Olivier Houchard0ff28652019-06-24 18:57:39 +02005784 if (!ctx)
5785 return -1;
5786
Willy Tarreau113d52b2020-01-10 09:20:26 +01005787 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005788 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005789
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005790 ctx->subs = es;
5791 es->events |= event_type;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005792
5793 /* we may have to subscribe to lower layers for new events */
5794 event_type &= ~ctx->wait_event.events;
5795 if (event_type && !(conn->flags & CO_FL_SSL_WAIT_HS))
5796 ctx->xprt->subscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005797 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005798}
5799
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005800/* Called from the upper layer, to unsubscribe <es> from events <event_type>.
5801 * The <es> pointer is not allowed to differ from the one passed to the
5802 * subscribe() call. It always returns zero.
5803 */
5804static int ssl_unsubscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005805{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005806 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005807
Willy Tarreau113d52b2020-01-10 09:20:26 +01005808 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005809 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005810
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005811 es->events &= ~event_type;
5812 if (!es->events)
Willy Tarreau113d52b2020-01-10 09:20:26 +01005813 ctx->subs = NULL;
5814
5815 /* If we subscribed, and we're not doing the handshake,
5816 * then we subscribed because the upper layer asked for it,
5817 * as the upper layer is no longer interested, we can
5818 * unsubscribe too.
5819 */
5820 event_type &= ctx->wait_event.events;
5821 if (event_type && !(ctx->conn->flags & CO_FL_SSL_WAIT_HS))
5822 conn_unsubscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005823
5824 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005825}
5826
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005827/* The connection has been taken over, so destroy the old tasklet and create
5828 * a new one. The original thread ID must be passed into orig_tid
5829 * It should be called with the takeover lock for the old thread held.
5830 * Returns 0 on success, and -1 on failure
5831 */
5832static int ssl_takeover(struct connection *conn, void *xprt_ctx, int orig_tid)
5833{
5834 struct ssl_sock_ctx *ctx = xprt_ctx;
5835 struct tasklet *tl = tasklet_new();
5836
5837 if (!tl)
5838 return -1;
5839
5840 ctx->wait_event.tasklet->context = NULL;
5841 tasklet_wakeup_on(ctx->wait_event.tasklet, orig_tid);
5842 ctx->wait_event.tasklet = tl;
5843 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
5844 ctx->wait_event.tasklet->context = ctx;
5845 return 0;
5846}
5847
Willy Tarreau41491682021-03-02 17:29:56 +01005848/* notify the next xprt that the connection is about to become idle and that it
5849 * may be stolen at any time after the function returns and that any tasklet in
5850 * the chain must be careful before dereferencing its context.
5851 */
5852static void ssl_set_idle(struct connection *conn, void *xprt_ctx)
5853{
5854 struct ssl_sock_ctx *ctx = xprt_ctx;
5855
5856 if (!ctx || !ctx->wait_event.tasklet)
5857 return;
5858
5859 HA_ATOMIC_OR(&ctx->wait_event.tasklet->state, TASK_F_USR1);
5860 if (ctx->xprt)
5861 xprt_set_idle(conn, ctx->xprt, ctx->xprt_ctx);
5862}
5863
5864/* notify the next xprt that the connection is not idle anymore and that it may
5865 * not be stolen before the next xprt_set_idle().
5866 */
5867static void ssl_set_used(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_used(conn, ctx->xprt, ctx->xprt_ctx);
5877}
5878
Olivier Houchard2e055482019-05-27 19:50:12 +02005879/* Use the provided XPRT as an underlying XPRT, and provide the old one.
5880 * Returns 0 on success, and non-zero on failure.
5881 */
5882static 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)
5883{
5884 struct ssl_sock_ctx *ctx = xprt_ctx;
5885
5886 if (oldxprt_ops != NULL)
5887 *oldxprt_ops = ctx->xprt;
5888 if (oldxprt_ctx != NULL)
5889 *oldxprt_ctx = ctx->xprt_ctx;
5890 ctx->xprt = toadd_ops;
5891 ctx->xprt_ctx = toadd_ctx;
5892 return 0;
5893}
5894
Olivier Houchard5149b592019-05-23 17:47:36 +02005895/* Remove the specified xprt. If if it our underlying XPRT, remove it and
5896 * return 0, otherwise just call the remove_xprt method from the underlying
5897 * XPRT.
5898 */
5899static int ssl_remove_xprt(struct connection *conn, void *xprt_ctx, void *toremove_ctx, const struct xprt_ops *newops, void *newctx)
5900{
5901 struct ssl_sock_ctx *ctx = xprt_ctx;
5902
5903 if (ctx->xprt_ctx == toremove_ctx) {
5904 ctx->xprt_ctx = newctx;
5905 ctx->xprt = newops;
5906 return 0;
5907 }
5908 return (ctx->xprt->remove_xprt(conn, ctx->xprt_ctx, toremove_ctx, newops, newctx));
5909}
5910
Willy Tarreau144f84a2021-03-02 16:09:26 +01005911struct task *ssl_sock_io_cb(struct task *t, void *context, unsigned int state)
Olivier Houchardea8dd942019-05-20 14:02:16 +02005912{
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005913 struct tasklet *tl = (struct tasklet *)t;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005914 struct ssl_sock_ctx *ctx = context;
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005915 struct connection *conn;
5916 int conn_in_list;
5917 int ret = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005918
Willy Tarreau41491682021-03-02 17:29:56 +01005919 if (state & TASK_F_USR1) {
5920 /* the tasklet was idling on an idle connection, it might have
5921 * been stolen, let's be careful!
5922 */
5923 HA_SPIN_LOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
5924 if (tl->context == NULL) {
5925 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
5926 tasklet_free(tl);
5927 return NULL;
5928 }
5929 conn = ctx->conn;
5930 conn_in_list = conn->flags & CO_FL_LIST_MASK;
5931 if (conn_in_list)
5932 conn_delete_from_tree(&conn->hash_node->node);
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01005933 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Willy Tarreau41491682021-03-02 17:29:56 +01005934 } else {
5935 conn = ctx->conn;
5936 conn_in_list = 0;
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005937 }
Willy Tarreau41491682021-03-02 17:29:56 +01005938
Olivier Houchardea8dd942019-05-20 14:02:16 +02005939 /* First if we're doing an handshake, try that */
Willy Tarreau9205ab32021-02-25 15:31:00 +01005940 if (ctx->conn->flags & CO_FL_SSL_WAIT_HS) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005941 ssl_sock_handshake(ctx->conn, CO_FL_SSL_WAIT_HS);
Willy Tarreau9205ab32021-02-25 15:31:00 +01005942 if (!(ctx->conn->flags & CO_FL_SSL_WAIT_HS)) {
5943 /* handshake completed, leave the bulk queue */
Willy Tarreau4c48edb2021-03-09 17:58:02 +01005944 _HA_ATOMIC_AND(&tl->state, ~TASK_HEAVY);
Willy Tarreau9205ab32021-02-25 15:31:00 +01005945 }
5946 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02005947 /* If we had an error, or the handshake is done and I/O is available,
5948 * let the upper layer know.
Olivier Houchard477902b2020-01-22 18:08:48 +01005949 * If no mux was set up yet, then call conn_create_mux()
Olivier Houchardea8dd942019-05-20 14:02:16 +02005950 * we can't be sure conn_fd_handler() will be called again.
5951 */
5952 if ((ctx->conn->flags & CO_FL_ERROR) ||
5953 !(ctx->conn->flags & CO_FL_SSL_WAIT_HS)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005954 int woke = 0;
5955
5956 /* On error, wake any waiter */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005957 if (ctx->subs) {
5958 tasklet_wakeup(ctx->subs->tasklet);
5959 ctx->subs->events = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005960 woke = 1;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005961 ctx->subs = NULL;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005962 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01005963
Olivier Houchardea8dd942019-05-20 14:02:16 +02005964 /* If we're the first xprt for the connection, let the
Olivier Houchard477902b2020-01-22 18:08:48 +01005965 * upper layers know. If we have no mux, create it,
5966 * and once we have a mux, call its wake method if we didn't
5967 * woke a tasklet already.
Olivier Houchardea8dd942019-05-20 14:02:16 +02005968 */
5969 if (ctx->conn->xprt_ctx == ctx) {
Olivier Houchard477902b2020-01-22 18:08:48 +01005970 if (!ctx->conn->mux)
5971 ret = conn_create_mux(ctx->conn);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005972 if (ret >= 0 && !woke && ctx->conn->mux && ctx->conn->mux->wake)
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005973 ret = ctx->conn->mux->wake(ctx->conn);
5974 goto leave;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005975 }
5976 }
Ilya Shipitsin761d64c2021-01-07 11:59:58 +05005977#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard54907bb2019-12-19 15:02:39 +01005978 /* If we have early data and somebody wants to receive, let them */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005979 else if (b_data(&ctx->early_buf) && ctx->subs &&
5980 ctx->subs->events & SUB_RETRY_RECV) {
5981 tasklet_wakeup(ctx->subs->tasklet);
5982 ctx->subs->events &= ~SUB_RETRY_RECV;
5983 if (!ctx->subs->events)
5984 ctx->subs = NULL;
Olivier Houchard54907bb2019-12-19 15:02:39 +01005985 }
5986#endif
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005987leave:
5988 if (!ret && conn_in_list) {
5989 struct server *srv = objt_server(conn->target);
5990
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01005991 HA_SPIN_LOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005992 if (conn_in_list == CO_FL_SAFE_LIST)
Willy Tarreau430bf4a2021-03-04 09:45:32 +01005993 ebmb_insert(&srv->per_thr[tid].safe_conns, &conn->hash_node->node, sizeof(conn->hash_node->hash));
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005994 else
Willy Tarreau430bf4a2021-03-04 09:45:32 +01005995 ebmb_insert(&srv->per_thr[tid].idle_conns, &conn->hash_node->node, sizeof(conn->hash_node->hash));
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01005996 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005997 }
Willy Tarreau74163142021-03-13 11:30:19 +01005998 return t;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005999}
6000
Emeric Brun46591952012-05-18 15:47:34 +02006001/* Receive up to <count> bytes from connection <conn>'s socket and store them
Willy Tarreauabf08d92014-01-14 11:31:27 +01006002 * into buffer <buf>. Only one call to recv() is performed, unless the
Emeric Brun46591952012-05-18 15:47:34 +02006003 * buffer wraps, in which case a second call may be performed. The connection's
6004 * flags are updated with whatever special event is detected (error, read0,
6005 * empty). The caller is responsible for taking care of those events and
6006 * avoiding the call if inappropriate. The function does not call the
6007 * connection's polling update function, so the caller is responsible for this.
6008 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006009static 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 +02006010{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006011 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreaubfc4d772018-07-18 11:22:03 +02006012 ssize_t ret;
6013 size_t try, done = 0;
Emeric Brun46591952012-05-18 15:47:34 +02006014
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006015 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02006016 goto out_error;
6017
Ilya Shipitsin761d64c2021-01-07 11:59:58 +05006018#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard54907bb2019-12-19 15:02:39 +01006019 if (b_data(&ctx->early_buf)) {
6020 try = b_contig_space(buf);
6021 if (try > b_data(&ctx->early_buf))
6022 try = b_data(&ctx->early_buf);
6023 memcpy(b_tail(buf), b_head(&ctx->early_buf), try);
6024 b_add(buf, try);
6025 b_del(&ctx->early_buf, try);
6026 if (b_data(&ctx->early_buf) == 0)
6027 b_free(&ctx->early_buf);
6028 return try;
6029 }
6030#endif
6031
Willy Tarreau911db9b2020-01-23 16:27:54 +01006032 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02006033 /* a handshake was requested */
6034 return 0;
6035
Emeric Brun46591952012-05-18 15:47:34 +02006036 /* read the largest possible block. For this, we perform only one call
6037 * to recv() unless the buffer wraps and we exactly fill the first hunk,
6038 * in which case we accept to do it once again. A new attempt is made on
6039 * EINTR too.
6040 */
Willy Tarreau00b0fb92014-01-17 11:09:40 +01006041 while (count > 0) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02006042
Willy Tarreau591d4452018-06-15 17:21:00 +02006043 try = b_contig_space(buf);
6044 if (!try)
6045 break;
6046
Willy Tarreauabf08d92014-01-14 11:31:27 +01006047 if (try > count)
6048 try = count;
Willy Tarreau591d4452018-06-15 17:21:00 +02006049
Olivier Houchard66ab4982019-02-26 18:37:15 +01006050 ret = SSL_read(ctx->ssl, b_tail(buf), try);
Emmanuel Hocdetf967c312019-08-05 18:04:16 +02006051
Emeric Brune1f38db2012-09-03 20:36:47 +02006052 if (conn->flags & CO_FL_ERROR) {
6053 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01006054 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02006055 }
Emeric Brun46591952012-05-18 15:47:34 +02006056 if (ret > 0) {
Olivier Houchardacd14032018-06-28 18:17:23 +02006057 b_add(buf, ret);
Emeric Brun46591952012-05-18 15:47:34 +02006058 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02006059 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02006060 }
Emeric Brun46591952012-05-18 15:47:34 +02006061 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006062 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02006063 if (ret == SSL_ERROR_WANT_WRITE) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01006064 /* handshake is running, and it needs to enable write */
Emeric Brun46591952012-05-18 15:47:34 +02006065 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006066 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006067#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006068 /* Async mode can be re-enabled, because we're leaving data state.*/
6069 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006070 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006071#endif
Emeric Brun46591952012-05-18 15:47:34 +02006072 break;
6073 }
6074 else if (ret == SSL_ERROR_WANT_READ) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006075 if (SSL_renegotiate_pending(ctx->ssl)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02006076 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
6077 SUB_RETRY_RECV,
6078 &ctx->wait_event);
Emeric Brun282a76a2012-11-08 18:02:56 +01006079 /* handshake is running, and it may need to re-enable read */
6080 conn->flags |= CO_FL_SSL_WAIT_HS;
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006081#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006082 /* Async mode can be re-enabled, because we're leaving data state.*/
6083 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006084 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006085#endif
Emeric Brun282a76a2012-11-08 18:02:56 +01006086 break;
6087 }
Emeric Brun46591952012-05-18 15:47:34 +02006088 break;
Olivier Houchardc2aae742017-09-22 18:26:28 +02006089 } else if (ret == SSL_ERROR_ZERO_RETURN)
6090 goto read0;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01006091 /* For SSL_ERROR_SYSCALL, make sure to clear the error
6092 * stack before shutting down the connection for
6093 * reading. */
Olivier Houchard7e2e5052018-02-13 15:17:23 +01006094 if (ret == SSL_ERROR_SYSCALL && (!errno || errno == EAGAIN))
6095 goto clear_ssl_error;
Emeric Brun46591952012-05-18 15:47:34 +02006096 /* otherwise it's a real error */
6097 goto out_error;
6098 }
6099 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006100 leave:
Emeric Brun46591952012-05-18 15:47:34 +02006101 return done;
6102
Christopher Faulet4ac77a92018-02-19 14:25:15 +01006103 clear_ssl_error:
6104 /* Clear openssl global errors stack */
6105 ssl_sock_dump_errors(conn);
6106 ERR_clear_error();
Emeric Brun46591952012-05-18 15:47:34 +02006107 read0:
6108 conn_sock_read0(conn);
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006109 goto leave;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01006110
Emeric Brun46591952012-05-18 15:47:34 +02006111 out_error:
Olivier Houchard7e2e5052018-02-13 15:17:23 +01006112 conn->flags |= CO_FL_ERROR;
Emeric Brun644cde02012-12-14 11:21:13 +01006113 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006114 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006115 ERR_clear_error();
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006116 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02006117}
6118
6119
Willy Tarreau787db9a2018-06-14 18:31:46 +02006120/* Send up to <count> pending bytes from buffer <buf> to connection <conn>'s
6121 * socket. <flags> may contain some CO_SFL_* flags to hint the system about
6122 * other pending data for example, but this flag is ignored at the moment.
Emeric Brun46591952012-05-18 15:47:34 +02006123 * Only one call to send() is performed, unless the buffer wraps, in which case
6124 * a second call may be performed. The connection's flags are updated with
6125 * whatever special event is detected (error, empty). The caller is responsible
6126 * for taking care of those events and avoiding the call if inappropriate. The
6127 * function does not call the connection's polling update function, so the caller
Willy Tarreau787db9a2018-06-14 18:31:46 +02006128 * is responsible for this. The buffer's output is not adjusted, it's up to the
6129 * caller to take care of this. It's up to the caller to update the buffer's
6130 * contents based on the return value.
Emeric Brun46591952012-05-18 15:47:34 +02006131 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006132static 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 +02006133{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006134 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreau787db9a2018-06-14 18:31:46 +02006135 ssize_t ret;
6136 size_t try, done;
Emeric Brun46591952012-05-18 15:47:34 +02006137
6138 done = 0;
6139
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006140 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02006141 goto out_error;
6142
Willy Tarreau911db9b2020-01-23 16:27:54 +01006143 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS | CO_FL_EARLY_SSL_HS))
Emeric Brun46591952012-05-18 15:47:34 +02006144 /* a handshake was requested */
6145 return 0;
6146
6147 /* send the largest possible block. For this we perform only one call
6148 * to send() unless the buffer wraps and we exactly fill the first hunk,
6149 * in which case we accept to do it once again.
6150 */
Willy Tarreau787db9a2018-06-14 18:31:46 +02006151 while (count) {
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05006152#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02006153 size_t written_data;
6154#endif
6155
Willy Tarreau787db9a2018-06-14 18:31:46 +02006156 try = b_contig_data(buf, done);
6157 if (try > count)
6158 try = count;
Willy Tarreaubfd59462013-02-21 07:46:09 +01006159
Willy Tarreau7bed9452014-02-02 02:00:24 +01006160 if (!(flags & CO_SFL_STREAMER) &&
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006161 !(ctx->xprt_st & SSL_SOCK_SEND_UNLIMITED) &&
Willy Tarreauef934602016-12-22 23:12:01 +01006162 global_ssl.max_record && try > global_ssl.max_record) {
6163 try = global_ssl.max_record;
Willy Tarreau518cedd2014-02-17 15:43:01 +01006164 }
6165 else {
6166 /* we need to keep the information about the fact that
6167 * we're not limiting the upcoming send(), because if it
6168 * fails, we'll have to retry with at least as many data.
6169 */
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006170 ctx->xprt_st |= SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau518cedd2014-02-17 15:43:01 +01006171 }
Willy Tarreaubfd59462013-02-21 07:46:09 +01006172
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05006173#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard010941f2019-05-03 20:56:19 +02006174 if (!SSL_is_init_finished(ctx->ssl) && conn_is_back(conn)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02006175 unsigned int max_early;
6176
Olivier Houchard522eea72017-11-03 16:27:47 +01006177 if (objt_listener(conn->target))
Olivier Houchard66ab4982019-02-26 18:37:15 +01006178 max_early = SSL_get_max_early_data(ctx->ssl);
Olivier Houchard522eea72017-11-03 16:27:47 +01006179 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006180 if (SSL_get0_session(ctx->ssl))
6181 max_early = SSL_SESSION_get_max_early_data(SSL_get0_session(ctx->ssl));
Olivier Houchard522eea72017-11-03 16:27:47 +01006182 else
6183 max_early = 0;
6184 }
6185
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006186 if (try + ctx->sent_early_data > max_early) {
6187 try -= (try + ctx->sent_early_data) - max_early;
Olivier Houchard522eea72017-11-03 16:27:47 +01006188 if (try <= 0) {
Olivier Houchard010941f2019-05-03 20:56:19 +02006189 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006190 tasklet_wakeup(ctx->wait_event.tasklet);
Olivier Houchardc2aae742017-09-22 18:26:28 +02006191 break;
Olivier Houchard522eea72017-11-03 16:27:47 +01006192 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02006193 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01006194 ret = SSL_write_early_data(ctx->ssl, b_peek(buf, done), try, &written_data);
Olivier Houchardc2aae742017-09-22 18:26:28 +02006195 if (ret == 1) {
6196 ret = written_data;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006197 ctx->sent_early_data += ret;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006198 if (objt_server(conn->target)) {
Olivier Houchard522eea72017-11-03 16:27:47 +01006199 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN | CO_FL_EARLY_DATA;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006200 /* Initiate the handshake, now */
6201 tasklet_wakeup(ctx->wait_event.tasklet);
6202 }
Olivier Houchard522eea72017-11-03 16:27:47 +01006203
Olivier Houchardc2aae742017-09-22 18:26:28 +02006204 }
6205
6206 } else
6207#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01006208 ret = SSL_write(ctx->ssl, b_peek(buf, done), try);
Willy Tarreau518cedd2014-02-17 15:43:01 +01006209
Emeric Brune1f38db2012-09-03 20:36:47 +02006210 if (conn->flags & CO_FL_ERROR) {
6211 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01006212 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02006213 }
Emeric Brun46591952012-05-18 15:47:34 +02006214 if (ret > 0) {
Willy Tarreauc192b0a2020-01-23 09:11:58 +01006215 /* A send succeeded, so we can consider ourself connected */
6216 conn->flags &= ~CO_FL_WAIT_L4L6;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006217 ctx->xprt_st &= ~SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau787db9a2018-06-14 18:31:46 +02006218 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02006219 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02006220 }
6221 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006222 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006223
Emeric Brun46591952012-05-18 15:47:34 +02006224 if (ret == SSL_ERROR_WANT_WRITE) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006225 if (SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun282a76a2012-11-08 18:02:56 +01006226 /* handshake is running, and it may need to re-enable write */
6227 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006228 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006229#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006230 /* Async mode can be re-enabled, because we're leaving data state.*/
6231 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006232 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006233#endif
Emeric Brun282a76a2012-11-08 18:02:56 +01006234 break;
6235 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02006236
Emeric Brun46591952012-05-18 15:47:34 +02006237 break;
6238 }
6239 else if (ret == SSL_ERROR_WANT_READ) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01006240 /* handshake is running, and it needs to enable read */
Emeric Brun46591952012-05-18 15:47:34 +02006241 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006242 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
6243 SUB_RETRY_RECV,
6244 &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006245#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006246 /* Async mode can be re-enabled, because we're leaving data state.*/
6247 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006248 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006249#endif
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006250 break;
6251 }
Emeric Brun46591952012-05-18 15:47:34 +02006252 goto out_error;
6253 }
6254 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006255 leave:
Emeric Brun46591952012-05-18 15:47:34 +02006256 return done;
6257
6258 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01006259 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006260 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006261 ERR_clear_error();
6262
Emeric Brun46591952012-05-18 15:47:34 +02006263 conn->flags |= CO_FL_ERROR;
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006264 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02006265}
6266
Willy Tarreau832e2422021-05-13 10:11:03 +02006267void ssl_sock_close(struct connection *conn, void *xprt_ctx) {
Emeric Brun46591952012-05-18 15:47:34 +02006268
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006269 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006270
Olivier Houchardea8dd942019-05-20 14:02:16 +02006271
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006272 if (ctx) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02006273 if (ctx->wait_event.events != 0)
6274 ctx->xprt->unsubscribe(ctx->conn, ctx->xprt_ctx,
6275 ctx->wait_event.events,
6276 &ctx->wait_event);
Willy Tarreau113d52b2020-01-10 09:20:26 +01006277 if (ctx->subs) {
6278 ctx->subs->events = 0;
6279 tasklet_wakeup(ctx->subs->tasklet);
Olivier Houchardea8dd942019-05-20 14:02:16 +02006280 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01006281
Olivier Houchard692c1d02019-05-23 18:41:47 +02006282 if (ctx->xprt->close)
6283 ctx->xprt->close(conn, ctx->xprt_ctx);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006284#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +02006285 if (global_ssl.async) {
6286 OSSL_ASYNC_FD all_fd[32], afd;
6287 size_t num_all_fds = 0;
6288 int i;
6289
Olivier Houchard66ab4982019-02-26 18:37:15 +01006290 SSL_get_all_async_fds(ctx->ssl, NULL, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02006291 if (num_all_fds > 32) {
6292 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
6293 return;
6294 }
6295
Olivier Houchard66ab4982019-02-26 18:37:15 +01006296 SSL_get_all_async_fds(ctx->ssl, all_fd, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02006297
6298 /* If an async job is pending, we must try to
6299 to catch the end using polling before calling
6300 SSL_free */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006301 if (num_all_fds && SSL_waiting_for_async(ctx->ssl)) {
Emeric Brun3854e012017-05-17 20:42:48 +02006302 for (i=0 ; i < num_all_fds ; i++) {
6303 /* switch on an handler designed to
6304 * handle the SSL_free
6305 */
6306 afd = all_fd[i];
6307 fdtab[afd].iocb = ssl_async_fd_free;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006308 fdtab[afd].owner = ctx->ssl;
Emeric Brun3854e012017-05-17 20:42:48 +02006309 fd_want_recv(afd);
Emeric Brunce9e01c2017-05-31 10:02:53 +00006310 /* To ensure that the fd cache won't be used
6311 * and we'll catch a real RD event.
6312 */
6313 fd_cant_recv(afd);
Emeric Brun3854e012017-05-17 20:42:48 +02006314 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02006315 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01006316 pool_free(ssl_sock_ctx_pool, ctx);
Willy Tarreau4781b152021-04-06 13:53:36 +02006317 _HA_ATOMIC_INC(&jobs);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006318 return;
6319 }
Emeric Brun3854e012017-05-17 20:42:48 +02006320 /* Else we can remove the fds from the fdtab
6321 * and call SSL_free.
Willy Tarreau67672452020-08-26 11:44:17 +02006322 * note: we do a fd_stop_both and not a delete
Emeric Brun3854e012017-05-17 20:42:48 +02006323 * because the fd is owned by the engine.
6324 * the engine is responsible to close
6325 */
6326 for (i=0 ; i < num_all_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +02006327 fd_stop_both(all_fd[i]);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006328 }
6329#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01006330 SSL_free(ctx->ssl);
Olivier Houchard54907bb2019-12-19 15:02:39 +01006331 b_free(&ctx->early_buf);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02006332 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01006333 pool_free(ssl_sock_ctx_pool, ctx);
Willy Tarreau4781b152021-04-06 13:53:36 +02006334 _HA_ATOMIC_DEC(&sslconns);
Emeric Brun46591952012-05-18 15:47:34 +02006335 }
Emeric Brun46591952012-05-18 15:47:34 +02006336}
6337
6338/* This function tries to perform a clean shutdown on an SSL connection, and in
6339 * any case, flags the connection as reusable if no handshake was in progress.
6340 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006341static void ssl_sock_shutw(struct connection *conn, void *xprt_ctx, int clean)
Emeric Brun46591952012-05-18 15:47:34 +02006342{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006343 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006344
Willy Tarreau911db9b2020-01-23 16:27:54 +01006345 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02006346 return;
Emmanuel Hocdet405ff312017-01-08 14:07:39 +01006347 if (!clean)
6348 /* don't sent notify on SSL_shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006349 SSL_set_quiet_shutdown(ctx->ssl, 1);
Emeric Brun46591952012-05-18 15:47:34 +02006350 /* no handshake was in progress, try a clean ssl shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006351 if (SSL_shutdown(ctx->ssl) <= 0) {
Emeric Brun644cde02012-12-14 11:21:13 +01006352 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006353 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006354 ERR_clear_error();
6355 }
Emeric Brun46591952012-05-18 15:47:34 +02006356}
6357
Emmanuel Hocdet96b78342017-10-31 15:46:07 +01006358
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05006359/* used for ppv2 pkey algo (can be used for logging) */
William Lallemandd4f946c2019-12-05 10:26:40 +01006360int ssl_sock_get_pkey_algo(struct connection *conn, struct buffer *out)
6361{
6362 struct ssl_sock_ctx *ctx;
6363 X509 *crt;
6364
6365 if (!ssl_sock_is_ssl(conn))
6366 return 0;
6367
6368 ctx = conn->xprt_ctx;
6369
6370 crt = SSL_get_certificate(ctx->ssl);
6371 if (!crt)
6372 return 0;
6373
6374 return cert_get_pkey_algo(crt, out);
6375}
6376
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006377/* used for ppv2 cert signature (can be used for logging) */
6378const char *ssl_sock_get_cert_sig(struct connection *conn)
6379{
Christopher Faulet82004142019-09-10 10:12:03 +02006380 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006381
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006382 __OPENSSL_110_CONST__ ASN1_OBJECT *algorithm;
6383 X509 *crt;
6384
6385 if (!ssl_sock_is_ssl(conn))
6386 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006387 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006388 crt = SSL_get_certificate(ctx->ssl);
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006389 if (!crt)
6390 return NULL;
6391 X509_ALGOR_get0(&algorithm, NULL, NULL, X509_get0_tbs_sigalg(crt));
6392 return OBJ_nid2sn(OBJ_obj2nid(algorithm));
6393}
6394
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006395/* used for ppv2 authority */
6396const char *ssl_sock_get_sni(struct connection *conn)
6397{
6398#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006399 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006400
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006401 if (!ssl_sock_is_ssl(conn))
6402 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006403 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006404 return SSL_get_servername(ctx->ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006405#else
Olivier Houchard66ab4982019-02-26 18:37:15 +01006406 return NULL;
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006407#endif
6408}
6409
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006410/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006411const char *ssl_sock_get_cipher_name(struct connection *conn)
6412{
Christopher Faulet82004142019-09-10 10:12:03 +02006413 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006414
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006415 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006416 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006417 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006418 return SSL_get_cipher_name(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006419}
6420
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006421/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006422const char *ssl_sock_get_proto_version(struct connection *conn)
6423{
Christopher Faulet82004142019-09-10 10:12:03 +02006424 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006425
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006426 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006427 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006428 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006429 return SSL_get_version(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006430}
6431
Olivier Houchardab28a322018-12-21 19:45:40 +01006432void ssl_sock_set_alpn(struct connection *conn, const unsigned char *alpn, int len)
6433{
6434#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Christopher Faulet82004142019-09-10 10:12:03 +02006435 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006436
Olivier Houcharde488ea82019-06-28 14:10:33 +02006437 if (!ssl_sock_is_ssl(conn))
6438 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006439 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006440 SSL_set_alpn_protos(ctx->ssl, alpn, len);
Olivier Houchardab28a322018-12-21 19:45:40 +01006441#endif
6442}
6443
Willy Tarreau119a4082016-12-22 21:58:38 +01006444/* Sets advertised SNI for outgoing connections. Please set <hostname> to NULL
6445 * to disable SNI.
6446 */
Willy Tarreau63076412015-07-10 11:33:32 +02006447void ssl_sock_set_servername(struct connection *conn, const char *hostname)
6448{
6449#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006450 struct ssl_sock_ctx *ctx;
William Lallemandc78ac5a2021-11-17 02:59:21 +01006451 struct server *s;
Willy Tarreau119a4082016-12-22 21:58:38 +01006452 char *prev_name;
6453
Willy Tarreau63076412015-07-10 11:33:32 +02006454 if (!ssl_sock_is_ssl(conn))
6455 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006456 ctx = conn->xprt_ctx;
William Lallemandc78ac5a2021-11-17 02:59:21 +01006457 s = __objt_server(conn->target);
Willy Tarreau63076412015-07-10 11:33:32 +02006458
Willy Tarreau119a4082016-12-22 21:58:38 +01006459 /* if the SNI changes, we must destroy the reusable context so that a
William Lallemandc78ac5a2021-11-17 02:59:21 +01006460 * new connection will present a new SNI. compare with the SNI
6461 * previously stored in the reused_sess */
6462 /* the RWLOCK is used to ensure that we are not trying to flush the
6463 * cache from the CLI */
6464
6465 HA_RWLOCK_RDLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
6466 prev_name = s->ssl_ctx.reused_sess[tid].sni;
Willy Tarreau119a4082016-12-22 21:58:38 +01006467 if ((!prev_name && hostname) ||
6468 (prev_name && (!hostname || strcmp(hostname, prev_name) != 0)))
Olivier Houchard66ab4982019-02-26 18:37:15 +01006469 SSL_set_session(ctx->ssl, NULL);
William Lallemandc78ac5a2021-11-17 02:59:21 +01006470 HA_RWLOCK_RDUNLOCK(SSL_SERVER_LOCK, &s->ssl_ctx.lock);
Willy Tarreau119a4082016-12-22 21:58:38 +01006471
Olivier Houchard66ab4982019-02-26 18:37:15 +01006472 SSL_set_tlsext_host_name(ctx->ssl, hostname);
Willy Tarreau63076412015-07-10 11:33:32 +02006473#endif
6474}
6475
Emeric Brun0abf8362014-06-24 18:26:41 +02006476/* Extract peer certificate's common name into the chunk dest
6477 * Returns
6478 * the len of the extracted common name
6479 * or 0 if no CN found in DN
6480 * or -1 on error case (i.e. no peer certificate)
6481 */
Willy Tarreau83061a82018-07-13 11:56:34 +02006482int ssl_sock_get_remote_common_name(struct connection *conn,
6483 struct buffer *dest)
David Safb76832014-05-08 23:42:08 -04006484{
Christopher Faulet82004142019-09-10 10:12:03 +02006485 struct ssl_sock_ctx *ctx;
David Safb76832014-05-08 23:42:08 -04006486 X509 *crt = NULL;
6487 X509_NAME *name;
David Safb76832014-05-08 23:42:08 -04006488 const char find_cn[] = "CN";
Willy Tarreau83061a82018-07-13 11:56:34 +02006489 const struct buffer find_cn_chunk = {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02006490 .area = (char *)&find_cn,
6491 .data = sizeof(find_cn)-1
David Safb76832014-05-08 23:42:08 -04006492 };
Emeric Brun0abf8362014-06-24 18:26:41 +02006493 int result = -1;
David Safb76832014-05-08 23:42:08 -04006494
6495 if (!ssl_sock_is_ssl(conn))
Emeric Brun0abf8362014-06-24 18:26:41 +02006496 goto out;
Christopher Faulet82004142019-09-10 10:12:03 +02006497 ctx = conn->xprt_ctx;
David Safb76832014-05-08 23:42:08 -04006498
6499 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006500 crt = SSL_get_peer_certificate(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006501 if (!crt)
6502 goto out;
6503
6504 name = X509_get_subject_name(crt);
6505 if (!name)
6506 goto out;
David Safb76832014-05-08 23:42:08 -04006507
Emeric Brun0abf8362014-06-24 18:26:41 +02006508 result = ssl_sock_get_dn_entry(name, &find_cn_chunk, 1, dest);
6509out:
David Safb76832014-05-08 23:42:08 -04006510 if (crt)
6511 X509_free(crt);
6512
6513 return result;
6514}
6515
Dave McCowan328fb582014-07-30 10:39:13 -04006516/* returns 1 if client passed a certificate for this session, 0 if not */
6517int ssl_sock_get_cert_used_sess(struct connection *conn)
6518{
Christopher Faulet82004142019-09-10 10:12:03 +02006519 struct ssl_sock_ctx *ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006520 X509 *crt = NULL;
6521
6522 if (!ssl_sock_is_ssl(conn))
6523 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006524 ctx = conn->xprt_ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006525
6526 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006527 crt = SSL_get_peer_certificate(ctx->ssl);
Dave McCowan328fb582014-07-30 10:39:13 -04006528 if (!crt)
6529 return 0;
6530
6531 X509_free(crt);
6532 return 1;
6533}
6534
6535/* returns 1 if client passed a certificate for this connection, 0 if not */
6536int ssl_sock_get_cert_used_conn(struct connection *conn)
David Safb76832014-05-08 23:42:08 -04006537{
Christopher Faulet82004142019-09-10 10:12:03 +02006538 struct ssl_sock_ctx *ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006539
David Safb76832014-05-08 23:42:08 -04006540 if (!ssl_sock_is_ssl(conn))
6541 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006542 ctx = conn->xprt_ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006543 return SSL_SOCK_ST_FL_VERIFY_DONE & ctx->xprt_st ? 1 : 0;
David Safb76832014-05-08 23:42:08 -04006544}
6545
6546/* returns result from SSL verify */
6547unsigned int ssl_sock_get_verify_result(struct connection *conn)
6548{
Christopher Faulet82004142019-09-10 10:12:03 +02006549 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006550
David Safb76832014-05-08 23:42:08 -04006551 if (!ssl_sock_is_ssl(conn))
6552 return (unsigned int)X509_V_ERR_APPLICATION_VERIFICATION;
Christopher Faulet82004142019-09-10 10:12:03 +02006553 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006554 return (unsigned int)SSL_get_verify_result(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006555}
6556
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006557/* Returns the application layer protocol name in <str> and <len> when known.
6558 * Zero is returned if the protocol name was not found, otherwise non-zero is
6559 * returned. The string is allocated in the SSL context and doesn't have to be
6560 * freed by the caller. NPN is also checked if available since older versions
6561 * of openssl (1.0.1) which are more common in field only support this one.
6562 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006563static int ssl_sock_get_alpn(const struct connection *conn, void *xprt_ctx, const char **str, int *len)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006564{
Olivier Houchard66ab4982019-02-26 18:37:15 +01006565#if defined(TLSEXT_TYPE_application_layer_protocol_negotiation) || \
6566 defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006567 struct ssl_sock_ctx *ctx = xprt_ctx;
6568 if (!ctx)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006569 return 0;
6570
6571 *str = NULL;
6572
6573#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Olivier Houchard66ab4982019-02-26 18:37:15 +01006574 SSL_get0_alpn_selected(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006575 if (*str)
6576 return 1;
6577#endif
Bernard Spil13c53f82018-02-15 13:34:58 +01006578#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006579 SSL_get0_next_proto_negotiated(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006580 if (*str)
6581 return 1;
6582#endif
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006583#endif
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006584 return 0;
6585}
6586
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006587/* "issuers-chain-path" load chain certificate in global */
William Lallemanddad31052020-05-14 17:47:32 +02006588int ssl_load_global_issuer_from_BIO(BIO *in, char *fp, char **err)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006589{
6590 X509 *ca;
6591 X509_NAME *name = NULL;
6592 ASN1_OCTET_STRING *skid = NULL;
6593 STACK_OF(X509) *chain = NULL;
6594 struct issuer_chain *issuer;
6595 struct eb64_node *node;
6596 char *path;
6597 u64 key;
6598 int ret = 0;
6599
6600 while ((ca = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
6601 if (chain == NULL) {
6602 chain = sk_X509_new_null();
6603 skid = X509_get_ext_d2i(ca, NID_subject_key_identifier, NULL, NULL);
6604 name = X509_get_subject_name(ca);
6605 }
6606 if (!sk_X509_push(chain, ca)) {
6607 X509_free(ca);
6608 goto end;
6609 }
6610 }
6611 if (!chain) {
6612 memprintf(err, "unable to load issuers-chain %s : pem certificate not found.\n", fp);
6613 goto end;
6614 }
6615 if (!skid) {
6616 memprintf(err, "unable to load issuers-chain %s : SubjectKeyIdentifier not found.\n", fp);
6617 goto end;
6618 }
6619 if (!name) {
6620 memprintf(err, "unable to load issuers-chain %s : SubjectName not found.\n", fp);
6621 goto end;
6622 }
Dragan Dosen967e7e72020-12-22 13:22:34 +01006623 key = XXH3(ASN1_STRING_get0_data(skid), ASN1_STRING_length(skid), 0);
William Lallemande0f3fd52020-02-25 14:53:06 +01006624 for (node = eb64_lookup(&cert_issuer_tree, key); node; node = eb64_next(node)) {
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006625 issuer = container_of(node, typeof(*issuer), node);
6626 if (!X509_NAME_cmp(name, X509_get_subject_name(sk_X509_value(issuer->chain, 0)))) {
6627 memprintf(err, "duplicate issuers-chain %s: %s already in store\n", fp, issuer->path);
6628 goto end;
6629 }
6630 }
6631 issuer = calloc(1, sizeof *issuer);
6632 path = strdup(fp);
6633 if (!issuer || !path) {
6634 free(issuer);
6635 free(path);
6636 goto end;
6637 }
6638 issuer->node.key = key;
6639 issuer->path = path;
6640 issuer->chain = chain;
6641 chain = NULL;
William Lallemande0f3fd52020-02-25 14:53:06 +01006642 eb64_insert(&cert_issuer_tree, &issuer->node);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006643 ret = 1;
6644 end:
6645 if (skid)
6646 ASN1_OCTET_STRING_free(skid);
6647 if (chain)
6648 sk_X509_pop_free(chain, X509_free);
6649 return ret;
6650}
6651
William Lallemandda8584c2020-05-14 10:14:37 +02006652 struct issuer_chain* ssl_get0_issuer_chain(X509 *cert)
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006653{
6654 AUTHORITY_KEYID *akid;
6655 struct issuer_chain *issuer = NULL;
6656
6657 akid = X509_get_ext_d2i(cert, NID_authority_key_identifier, NULL, NULL);
William Lallemandf69cd682020-11-19 16:24:13 +01006658 if (akid && akid->keyid) {
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006659 struct eb64_node *node;
6660 u64 hk;
Dragan Dosen967e7e72020-12-22 13:22:34 +01006661 hk = XXH3(ASN1_STRING_get0_data(akid->keyid), ASN1_STRING_length(akid->keyid), 0);
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006662 for (node = eb64_lookup(&cert_issuer_tree, hk); node; node = eb64_next(node)) {
6663 struct issuer_chain *ti = container_of(node, typeof(*issuer), node);
6664 if (X509_check_issued(sk_X509_value(ti->chain, 0), cert) == X509_V_OK) {
6665 issuer = ti;
6666 break;
6667 }
6668 }
6669 AUTHORITY_KEYID_free(akid);
6670 }
6671 return issuer;
6672}
6673
William Lallemanddad31052020-05-14 17:47:32 +02006674void ssl_free_global_issuers(void)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006675{
6676 struct eb64_node *node, *back;
6677 struct issuer_chain *issuer;
6678
William Lallemande0f3fd52020-02-25 14:53:06 +01006679 node = eb64_first(&cert_issuer_tree);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006680 while (node) {
6681 issuer = container_of(node, typeof(*issuer), node);
6682 back = eb64_next(node);
6683 eb64_delete(node);
6684 free(issuer->path);
6685 sk_X509_pop_free(issuer->chain, X509_free);
6686 free(issuer);
6687 node = back;
6688 }
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006689}
6690
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006691#ifndef OPENSSL_NO_ENGINE
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006692static int ssl_check_async_engine_count(void) {
Christopher Fauletfc633b62020-11-06 15:24:23 +01006693 int err_code = ERR_NONE;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006694
Emeric Brun3854e012017-05-17 20:42:48 +02006695 if (global_ssl.async && (openssl_engines_initialized > 32)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01006696 ha_alert("ssl-mode-async only supports a maximum of 32 engines.\n");
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006697 err_code = ERR_ABORT;
6698 }
6699 return err_code;
Willy Tarreau8c3b0fd2016-12-21 22:44:46 +01006700}
Willy Tarreau9ceda382016-12-21 23:13:03 +01006701#endif
6702
Willy Tarreaude5675a2021-01-20 14:41:29 +01006703/* "show fd" helper to dump ssl internals. Warning: the output buffer is often
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006704 * the common trash! It returns non-zero if the connection entry looks suspicious.
Willy Tarreaude5675a2021-01-20 14:41:29 +01006705 */
Willy Tarreau8050efe2021-01-21 08:26:06 +01006706static int ssl_sock_show_fd(struct buffer *buf, const struct connection *conn, const void *ctx)
Willy Tarreaude5675a2021-01-20 14:41:29 +01006707{
6708 const struct ssl_sock_ctx *sctx = ctx;
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006709 int ret = 0;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006710
6711 if (!sctx)
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006712 return ret;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006713
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006714 if (sctx->conn != conn) {
6715 chunk_appendf(&trash, " xctx.conn=%p(BOGUS)", sctx->conn);
6716 ret = 1;
6717 }
Willy Tarreaude5675a2021-01-20 14:41:29 +01006718 chunk_appendf(&trash, " xctx.st=%d", sctx->xprt_st);
6719
6720 if (sctx->xprt) {
6721 chunk_appendf(&trash, " .xprt=%s", sctx->xprt->name);
6722 if (sctx->xprt_ctx)
6723 chunk_appendf(&trash, " .xctx=%p", sctx->xprt_ctx);
6724 }
6725
6726 chunk_appendf(&trash, " .wait.ev=%d", sctx->wait_event.events);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006727
6728 /* as soon as a shutdown is reported the lower layer unregisters its
6729 * subscriber, so the situations below are transient and rare enough to
6730 * be reported as suspicious. In any case they shouldn't last.
6731 */
6732 if ((sctx->wait_event.events & 1) && (conn->flags & (CO_FL_SOCK_RD_SH|CO_FL_ERROR)))
6733 ret = 1;
6734 if ((sctx->wait_event.events & 2) && (conn->flags & (CO_FL_SOCK_WR_SH|CO_FL_ERROR)))
6735 ret = 1;
6736
Willy Tarreaude5675a2021-01-20 14:41:29 +01006737 chunk_appendf(&trash, " .subs=%p", sctx->subs);
6738 if (sctx->subs) {
6739 chunk_appendf(&trash, "(ev=%d tl=%p", sctx->subs->events, sctx->subs->tasklet);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006740 if (sctx->subs->tasklet->calls >= 1000000)
6741 ret = 1;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006742 chunk_appendf(&trash, " tl.calls=%d tl.ctx=%p tl.fct=",
6743 sctx->subs->tasklet->calls,
6744 sctx->subs->tasklet->context);
6745 resolve_sym_name(&trash, NULL, sctx->subs->tasklet->process);
6746 chunk_appendf(&trash, ")");
6747 }
6748 chunk_appendf(&trash, " .sent_early=%d", sctx->sent_early_data);
6749 chunk_appendf(&trash, " .early_in=%d", (int)sctx->early_buf.data);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006750 return ret;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006751}
6752
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006753#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
William Lallemand32af2032016-10-29 18:09:35 +02006754/* This function is used with TLS ticket keys management. It permits to browse
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006755 * each reference. The variable <ref> must point to the current node's list
6756 * element (which starts by the root), and <end> must point to the root node.
William Lallemand32af2032016-10-29 18:09:35 +02006757 */
William Lallemand32af2032016-10-29 18:09:35 +02006758static inline
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006759struct tls_keys_ref *tlskeys_list_get_next(struct list *ref, struct list *end)
William Lallemand32af2032016-10-29 18:09:35 +02006760{
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006761 /* Get next list entry. */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006762 ref = ref->n;
William Lallemand32af2032016-10-29 18:09:35 +02006763
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006764 /* If the entry is the last of the list, return NULL. */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006765 if (ref == end)
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006766 return NULL;
William Lallemand32af2032016-10-29 18:09:35 +02006767
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006768 return LIST_ELEM(ref, struct tls_keys_ref *, list);
William Lallemand32af2032016-10-29 18:09:35 +02006769}
6770
6771static inline
6772struct tls_keys_ref *tlskeys_ref_lookup_ref(const char *reference)
6773{
6774 int id;
6775 char *error;
6776
6777 /* If the reference starts by a '#', this is numeric id. */
6778 if (reference[0] == '#') {
6779 /* Try to convert the numeric id. If the conversion fails, the lookup fails. */
6780 id = strtol(reference + 1, &error, 10);
6781 if (*error != '\0')
6782 return NULL;
6783
6784 /* Perform the unique id lookup. */
6785 return tlskeys_ref_lookupid(id);
6786 }
6787
6788 /* Perform the string lookup. */
6789 return tlskeys_ref_lookup(reference);
6790}
6791#endif
6792
6793
6794#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6795
6796static int cli_io_handler_tlskeys_files(struct appctx *appctx);
6797
6798static inline int cli_io_handler_tlskeys_entries(struct appctx *appctx) {
6799 return cli_io_handler_tlskeys_files(appctx);
6800}
6801
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006802/* dumps all tls keys. Relies on cli.i0 (non-null = only list file names), cli.i1
6803 * (next index to be dumped), and cli.p0 (next key reference).
6804 */
William Lallemand32af2032016-10-29 18:09:35 +02006805static int cli_io_handler_tlskeys_files(struct appctx *appctx) {
6806
6807 struct stream_interface *si = appctx->owner;
6808
6809 switch (appctx->st2) {
6810 case STAT_ST_INIT:
6811 /* Display the column headers. If the message cannot be sent,
Joseph Herlant017b3da2018-11-15 09:07:59 -08006812 * quit the function with returning 0. The function is called
William Lallemand32af2032016-10-29 18:09:35 +02006813 * later and restart at the state "STAT_ST_INIT".
6814 */
6815 chunk_reset(&trash);
6816
6817 if (appctx->io_handler == cli_io_handler_tlskeys_entries)
6818 chunk_appendf(&trash, "# id secret\n");
6819 else
6820 chunk_appendf(&trash, "# id (file)\n");
6821
Willy Tarreau06d80a92017-10-19 14:32:15 +02006822 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01006823 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006824 return 0;
6825 }
6826
William Lallemand32af2032016-10-29 18:09:35 +02006827 /* Now, we start the browsing of the references lists.
6828 * Note that the following call to LIST_ELEM return bad pointer. The only
6829 * available field of this pointer is <list>. It is used with the function
6830 * tlskeys_list_get_next() for retruning the first available entry
6831 */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006832 if (appctx->ctx.cli.p0 == NULL)
6833 appctx->ctx.cli.p0 = tlskeys_list_get_next(&tlskeys_reference, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006834
6835 appctx->st2 = STAT_ST_LIST;
6836 /* fall through */
6837
6838 case STAT_ST_LIST:
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006839 while (appctx->ctx.cli.p0) {
6840 struct tls_keys_ref *ref = appctx->ctx.cli.p0;
William Lallemand32af2032016-10-29 18:09:35 +02006841
6842 chunk_reset(&trash);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006843 if (appctx->io_handler == cli_io_handler_tlskeys_entries && appctx->ctx.cli.i1 == 0)
William Lallemand32af2032016-10-29 18:09:35 +02006844 chunk_appendf(&trash, "# ");
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006845
6846 if (appctx->ctx.cli.i1 == 0)
6847 chunk_appendf(&trash, "%d (%s)\n", ref->unique_id, ref->filename);
6848
William Lallemand32af2032016-10-29 18:09:35 +02006849 if (appctx->io_handler == cli_io_handler_tlskeys_entries) {
Christopher Faulet16f45c82018-02-16 11:23:49 +01006850 int head;
6851
6852 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
6853 head = ref->tls_ticket_enc_index;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006854 while (appctx->ctx.cli.i1 < TLS_TICKETS_NO) {
Willy Tarreau83061a82018-07-13 11:56:34 +02006855 struct buffer *t2 = get_trash_chunk();
William Lallemand32af2032016-10-29 18:09:35 +02006856
6857 chunk_reset(t2);
6858 /* should never fail here because we dump only a key in the t2 buffer */
Emeric Brun9e754772019-01-10 17:51:55 +01006859 if (ref->key_size_bits == 128) {
6860 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6861 sizeof(struct tls_sess_key_128),
6862 t2->area, t2->size);
6863 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6864 t2->area);
6865 }
6866 else if (ref->key_size_bits == 256) {
6867 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6868 sizeof(struct tls_sess_key_256),
6869 t2->area, t2->size);
6870 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6871 t2->area);
6872 }
6873 else {
6874 /* This case should never happen */
6875 chunk_appendf(&trash, "%d.%d <unknown>\n", ref->unique_id, appctx->ctx.cli.i1);
6876 }
William Lallemand32af2032016-10-29 18:09:35 +02006877
Willy Tarreau06d80a92017-10-19 14:32:15 +02006878 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006879 /* let's try again later from this stream. We add ourselves into
6880 * this stream's users so that it can remove us upon termination.
6881 */
Christopher Faulet16f45c82018-02-16 11:23:49 +01006882 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreaudb398432018-11-15 11:08:52 +01006883 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006884 return 0;
6885 }
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006886 appctx->ctx.cli.i1++;
William Lallemand32af2032016-10-29 18:09:35 +02006887 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01006888 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006889 appctx->ctx.cli.i1 = 0;
William Lallemand32af2032016-10-29 18:09:35 +02006890 }
Willy Tarreau06d80a92017-10-19 14:32:15 +02006891 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006892 /* let's try again later from this stream. We add ourselves into
6893 * this stream's users so that it can remove us upon termination.
6894 */
Willy Tarreaudb398432018-11-15 11:08:52 +01006895 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006896 return 0;
6897 }
6898
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006899 if (appctx->ctx.cli.i0 == 0) /* don't display everything if not necessary */
William Lallemand32af2032016-10-29 18:09:35 +02006900 break;
6901
6902 /* get next list entry and check the end of the list */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006903 appctx->ctx.cli.p0 = tlskeys_list_get_next(&ref->list, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006904 }
6905
6906 appctx->st2 = STAT_ST_FIN;
6907 /* fall through */
6908
6909 default:
6910 appctx->st2 = STAT_ST_FIN;
6911 return 1;
6912 }
6913 return 0;
6914}
6915
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006916/* sets cli.i0 to non-zero if only file lists should be dumped */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006917static int cli_parse_show_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006918{
William Lallemand32af2032016-10-29 18:09:35 +02006919 /* no parameter, shows only file list */
6920 if (!*args[2]) {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006921 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006922 appctx->io_handler = cli_io_handler_tlskeys_files;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006923 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006924 }
6925
6926 if (args[2][0] == '*') {
6927 /* list every TLS ticket keys */
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006928 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006929 } else {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006930 appctx->ctx.cli.p0 = tlskeys_ref_lookup_ref(args[2]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006931 if (!appctx->ctx.cli.p0)
6932 return cli_err(appctx, "'show tls-keys' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006933 }
William Lallemand32af2032016-10-29 18:09:35 +02006934 appctx->io_handler = cli_io_handler_tlskeys_entries;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006935 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006936}
6937
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006938static int cli_parse_set_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006939{
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006940 struct tls_keys_ref *ref;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006941 int ret;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006942
William Lallemand32af2032016-10-29 18:09:35 +02006943 /* Expect two parameters: the filename and the new new TLS key in encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006944 if (!*args[3] || !*args[4])
6945 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 +02006946
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006947 ref = tlskeys_ref_lookup_ref(args[3]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006948 if (!ref)
6949 return cli_err(appctx, "'set ssl tls-key' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006950
Willy Tarreau1c913e42018-08-22 05:26:57 +02006951 ret = base64dec(args[4], strlen(args[4]), trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02006952 if (ret < 0)
6953 return cli_err(appctx, "'set ssl tls-key' received invalid base64 encoded TLS key.\n");
Emeric Brun9e754772019-01-10 17:51:55 +01006954
Willy Tarreau1c913e42018-08-22 05:26:57 +02006955 trash.data = ret;
Willy Tarreau9d008692019-08-09 11:21:01 +02006956 if (ssl_sock_update_tlskey_ref(ref, &trash) < 0)
6957 return cli_err(appctx, "'set ssl tls-key' received a key of wrong size.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006958
Willy Tarreau9d008692019-08-09 11:21:01 +02006959 return cli_msg(appctx, LOG_INFO, "TLS ticket key updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02006960}
William Lallemandd4f946c2019-12-05 10:26:40 +01006961#endif
William Lallemand419e6342020-04-08 12:05:39 +02006962
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006963static int cli_parse_set_ocspresponse(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006964{
6965#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
6966 char *err = NULL;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006967 int i, j, ret;
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006968
6969 if (!payload)
6970 payload = args[3];
William Lallemand32af2032016-10-29 18:09:35 +02006971
6972 /* Expect one parameter: the new response in base64 encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006973 if (!*payload)
6974 return cli_err(appctx, "'set ssl ocsp-response' expects response in base64 encoding.\n");
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006975
6976 /* remove \r and \n from the payload */
6977 for (i = 0, j = 0; payload[i]; i++) {
6978 if (payload[i] == '\r' || payload[i] == '\n')
6979 continue;
6980 payload[j++] = payload[i];
6981 }
6982 payload[j] = 0;
William Lallemand32af2032016-10-29 18:09:35 +02006983
Willy Tarreau1c913e42018-08-22 05:26:57 +02006984 ret = base64dec(payload, j, trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02006985 if (ret < 0)
6986 return cli_err(appctx, "'set ssl ocsp-response' received invalid base64 encoded response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006987
Willy Tarreau1c913e42018-08-22 05:26:57 +02006988 trash.data = ret;
William Lallemand32af2032016-10-29 18:09:35 +02006989 if (ssl_sock_update_ocsp_response(&trash, &err)) {
Willy Tarreau9d008692019-08-09 11:21:01 +02006990 if (err)
6991 return cli_dynerr(appctx, memprintf(&err, "%s.\n", err));
6992 else
6993 return cli_err(appctx, "Failed to update OCSP response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006994 }
Willy Tarreau9d008692019-08-09 11:21:01 +02006995
6996 return cli_msg(appctx, LOG_INFO, "OCSP Response updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02006997#else
Willy Tarreau9d008692019-08-09 11:21:01 +02006998 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 +02006999#endif
7000
Elliot Otchet71f82972020-01-15 08:12:14 -05007001}
7002
William Lallemand32af2032016-10-29 18:09:35 +02007003/* register cli keywords */
7004static struct cli_kw_list cli_kws = {{ },{
7005#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
Willy Tarreaub205bfd2021-05-07 11:38:37 +02007006 { { "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 },
7007 { { "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 +02007008#endif
Willy Tarreaub205bfd2021-05-07 11:38:37 +02007009 { { "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 +02007010 { { NULL }, NULL, NULL, NULL }
7011}};
7012
Willy Tarreau0108d902018-11-25 19:14:37 +01007013INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
William Lallemand32af2032016-10-29 18:09:35 +02007014
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02007015/* transport-layer operations for SSL sockets */
William Lallemanddad31052020-05-14 17:47:32 +02007016struct xprt_ops ssl_sock = {
Emeric Brun46591952012-05-18 15:47:34 +02007017 .snd_buf = ssl_sock_from_buf,
7018 .rcv_buf = ssl_sock_to_buf,
Olivier Houcharddf357842019-03-21 16:30:07 +01007019 .subscribe = ssl_subscribe,
7020 .unsubscribe = ssl_unsubscribe,
Olivier Houchard5149b592019-05-23 17:47:36 +02007021 .remove_xprt = ssl_remove_xprt,
Olivier Houchard2e055482019-05-27 19:50:12 +02007022 .add_xprt = ssl_add_xprt,
Emeric Brun46591952012-05-18 15:47:34 +02007023 .rcv_pipe = NULL,
7024 .snd_pipe = NULL,
7025 .shutr = NULL,
7026 .shutw = ssl_sock_shutw,
7027 .close = ssl_sock_close,
7028 .init = ssl_sock_init,
Olivier Houchardbc5ce922021-03-05 23:47:00 +01007029 .start = ssl_sock_start,
Willy Tarreau55d37912016-12-21 23:38:39 +01007030 .prepare_bind_conf = ssl_sock_prepare_bind_conf,
Willy Tarreau795cdab2016-12-22 17:30:54 +01007031 .destroy_bind_conf = ssl_sock_destroy_bind_conf,
Willy Tarreau17d45382016-12-22 21:16:08 +01007032 .prepare_srv = ssl_sock_prepare_srv_ctx,
7033 .destroy_srv = ssl_sock_free_srv_ctx,
Willy Tarreau8743f7e2016-12-04 18:44:29 +01007034 .get_alpn = ssl_sock_get_alpn,
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02007035 .takeover = ssl_takeover,
Willy Tarreau41491682021-03-02 17:29:56 +01007036 .set_idle = ssl_set_idle,
7037 .set_used = ssl_set_used,
Willy Tarreau8e0bb0a2016-11-24 16:58:12 +01007038 .name = "SSL",
Willy Tarreaude5675a2021-01-20 14:41:29 +01007039 .show_fd = ssl_sock_show_fd,
Emeric Brun46591952012-05-18 15:47:34 +02007040};
7041
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007042enum act_return ssl_action_wait_for_hs(struct act_rule *rule, struct proxy *px,
7043 struct session *sess, struct stream *s, int flags)
7044{
7045 struct connection *conn;
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007046 struct conn_stream *cs;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007047
7048 conn = objt_conn(sess->origin);
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007049 cs = objt_cs(s->si[0].end);
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007050
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007051 if (conn && cs) {
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007052 if (conn->flags & (CO_FL_EARLY_SSL_HS | CO_FL_SSL_WAIT_HS)) {
Olivier Houchard6fa63d92017-11-27 18:41:32 +01007053 cs->flags |= CS_FL_WAIT_FOR_HS;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02007054 s->req.flags |= CF_READ_NULL;
7055 return ACT_RET_YIELD;
7056 }
7057 }
7058 return (ACT_RET_CONT);
7059}
7060
7061static enum act_parse_ret ssl_parse_wait_for_hs(const char **args, int *orig_arg, struct proxy *px, struct act_rule *rule, char **err)
7062{
7063 rule->action_ptr = ssl_action_wait_for_hs;
7064
7065 return ACT_RET_PRS_OK;
7066}
7067
7068static struct action_kw_list http_req_actions = {ILH, {
7069 { "wait-for-handshake", ssl_parse_wait_for_hs },
7070 { /* END */ }
7071}};
7072
Willy Tarreau0108d902018-11-25 19:14:37 +01007073INITCALL1(STG_REGISTER, http_req_keywords_register, &http_req_actions);
7074
Ilya Shipitsinf00cdb12021-02-06 18:59:22 +05007075#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01007076
7077static void ssl_sock_sctl_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7078{
7079 if (ptr) {
7080 chunk_destroy(ptr);
7081 free(ptr);
7082 }
7083}
7084
7085#endif
William Lallemand76b4a122020-08-04 17:41:39 +02007086
7087#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
7088static void ssl_sock_ocsp_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7089{
7090 struct ocsp_cbk_arg *ocsp_arg;
7091
7092 if (ptr) {
7093 ocsp_arg = ptr;
7094
7095 if (ocsp_arg->is_single) {
7096 ssl_sock_free_ocsp(ocsp_arg->s_ocsp);
7097 ocsp_arg->s_ocsp = NULL;
7098 } else {
7099 int i;
7100
7101 for (i = 0; i < SSL_SOCK_NUM_KEYTYPES; i++) {
7102 ssl_sock_free_ocsp(ocsp_arg->m_ocsp[i]);
7103 ocsp_arg->m_ocsp[i] = NULL;
7104 }
7105 }
7106 free(ocsp_arg);
7107 }
7108}
7109#endif
7110
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01007111static void ssl_sock_capture_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7112{
Willy Tarreaubafbe012017-11-24 17:34:44 +01007113 pool_free(pool_head_ssl_capture, ptr);
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01007114}
William Lallemand7d42ef52020-07-06 11:41:30 +02007115
William Lallemandca5cf0a2021-06-09 16:46:12 +02007116#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02007117static void ssl_sock_keylog_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
7118{
7119 struct ssl_keylog *keylog;
7120
7121 if (!ptr)
7122 return;
7123
7124 keylog = ptr;
7125
7126 pool_free(pool_head_ssl_keylog_str, keylog->client_random);
7127 pool_free(pool_head_ssl_keylog_str, keylog->client_early_traffic_secret);
7128 pool_free(pool_head_ssl_keylog_str, keylog->client_handshake_traffic_secret);
7129 pool_free(pool_head_ssl_keylog_str, keylog->server_handshake_traffic_secret);
7130 pool_free(pool_head_ssl_keylog_str, keylog->client_traffic_secret_0);
7131 pool_free(pool_head_ssl_keylog_str, keylog->server_traffic_secret_0);
7132 pool_free(pool_head_ssl_keylog_str, keylog->exporter_secret);
7133 pool_free(pool_head_ssl_keylog_str, keylog->early_exporter_secret);
7134
7135 pool_free(pool_head_ssl_keylog, ptr);
7136}
7137#endif
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01007138
Emeric Brun46591952012-05-18 15:47:34 +02007139__attribute__((constructor))
Willy Tarreau92faadf2012-10-10 23:04:25 +02007140static void __ssl_sock_init(void)
7141{
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007142#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02007143 STACK_OF(SSL_COMP)* cm;
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05007144 int n;
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007145#endif
Emeric Brun46591952012-05-18 15:47:34 +02007146
Willy Tarreauef934602016-12-22 23:12:01 +01007147 if (global_ssl.listen_default_ciphers)
7148 global_ssl.listen_default_ciphers = strdup(global_ssl.listen_default_ciphers);
7149 if (global_ssl.connect_default_ciphers)
7150 global_ssl.connect_default_ciphers = strdup(global_ssl.connect_default_ciphers);
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05007151#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02007152 if (global_ssl.listen_default_ciphersuites)
7153 global_ssl.listen_default_ciphersuites = strdup(global_ssl.listen_default_ciphersuites);
7154 if (global_ssl.connect_default_ciphersuites)
7155 global_ssl.connect_default_ciphersuites = strdup(global_ssl.connect_default_ciphersuites);
7156#endif
Willy Tarreau610f04b2014-02-13 11:36:41 +01007157
Willy Tarreau13e14102016-12-22 20:25:26 +01007158 xprt_register(XPRT_SSL, &ssl_sock);
Willy Tarreau9a1ab082019-05-09 13:26:41 +02007159#if HA_OPENSSL_VERSION_NUMBER < 0x10100000L
Emeric Brun46591952012-05-18 15:47:34 +02007160 SSL_library_init();
Rosen Penev68185952018-12-14 08:47:02 -08007161#endif
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007162#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02007163 cm = SSL_COMP_get_compression_methods();
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05007164 n = sk_SSL_COMP_num(cm);
7165 while (n--) {
7166 (void) sk_SSL_COMP_pop(cm);
7167 }
Ilya Shipitsin0590f442019-05-25 19:30:50 +05007168#endif
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05007169
Willy Tarreau5db847a2019-05-09 14:13:35 +02007170#if defined(USE_THREAD) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Emeric Brun821bb9b2017-06-15 16:37:39 +02007171 ssl_locking_init();
7172#endif
Ilya Shipitsinf00cdb12021-02-06 18:59:22 +05007173#ifdef HAVE_SSL_CTX_ADD_SERVER_CUSTOM_EXT
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01007174 sctl_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_sctl_free_func);
7175#endif
William Lallemand76b4a122020-08-04 17:41:39 +02007176
7177#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
7178 ocsp_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_ocsp_free_func);
7179#endif
7180
Thierry FOURNIER28962c92018-06-17 21:37:05 +02007181 ssl_app_data_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
Thierry FOURNIER16ff0502018-06-17 21:33:01 +02007182 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 +02007183#ifdef HAVE_SSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02007184 ssl_keylog_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_keylog_free_func);
7185#endif
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007186#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00007187 ENGINE_load_builtin_engines();
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00007188 hap_register_post_check(ssl_check_async_engine_count);
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007189#endif
Willy Tarreaud1c57502016-12-22 22:46:15 +01007190#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
7191 hap_register_post_check(tlskeys_finalize_config);
7192#endif
Willy Tarreau80713382018-11-26 10:19:54 +01007193
7194 global.ssl_session_max_cost = SSL_SESSION_MAX_COST;
7195 global.ssl_handshake_max_cost = SSL_HANDSHAKE_MAX_COST;
7196
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01007197 hap_register_post_deinit(ssl_free_global_issuers);
7198
Willy Tarreau80713382018-11-26 10:19:54 +01007199#ifndef OPENSSL_NO_DH
7200 ssl_dh_ptr_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
7201 hap_register_post_deinit(ssl_free_dh);
7202#endif
7203#ifndef OPENSSL_NO_ENGINE
7204 hap_register_post_deinit(ssl_free_engines);
7205#endif
7206 /* Load SSL string for the verbose & debug mode. */
7207 ERR_load_SSL_strings();
Olivier Houcharda8955d52019-04-07 22:00:38 +02007208 ha_meth = BIO_meth_new(0x666, "ha methods");
7209 BIO_meth_set_write(ha_meth, ha_ssl_write);
7210 BIO_meth_set_read(ha_meth, ha_ssl_read);
7211 BIO_meth_set_ctrl(ha_meth, ha_ssl_ctrl);
7212 BIO_meth_set_create(ha_meth, ha_ssl_new);
7213 BIO_meth_set_destroy(ha_meth, ha_ssl_free);
7214 BIO_meth_set_puts(ha_meth, ha_ssl_puts);
7215 BIO_meth_set_gets(ha_meth, ha_ssl_gets);
William Lallemand150bfa82019-09-19 17:12:49 +02007216
7217 HA_SPIN_INIT(&ckch_lock);
Dragan Dosen1e7ed042020-05-08 18:30:00 +02007218
Dragan Dosen9ac98092020-05-11 15:51:45 +02007219 /* Try to register dedicated SSL/TLS protocol message callbacks for
7220 * heartbleed attack (CVE-2014-0160) and clienthello.
7221 */
7222 hap_register_post_check(ssl_sock_register_msg_callbacks);
7223
Dragan Dosen1e7ed042020-05-08 18:30:00 +02007224 /* Try to free all callbacks that were registered by using
7225 * ssl_sock_register_msg_callback().
7226 */
7227 hap_register_post_deinit(ssl_sock_unregister_msg_callbacks);
Willy Tarreau80713382018-11-26 10:19:54 +01007228}
Willy Tarreaud92aa5c2015-01-15 21:34:39 +01007229
Willy Tarreau80713382018-11-26 10:19:54 +01007230/* Compute and register the version string */
7231static void ssl_register_build_options()
7232{
7233 char *ptr = NULL;
7234 int i;
7235
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007236 memprintf(&ptr, "Built with OpenSSL version : "
7237#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01007238 "BoringSSL");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007239#else /* OPENSSL_IS_BORINGSSL */
7240 OPENSSL_VERSION_TEXT
7241 "\nRunning on OpenSSL version : %s%s",
Rosen Penev68185952018-12-14 08:47:02 -08007242 OpenSSL_version(OPENSSL_VERSION),
Willy Tarreau1d158ab2019-05-09 13:41:45 +02007243 ((OPENSSL_VERSION_NUMBER ^ OpenSSL_version_num()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007244#endif
7245 memprintf(&ptr, "%s\nOpenSSL library supports TLS extensions : "
Willy Tarreau9a1ab082019-05-09 13:26:41 +02007246#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007247 "no (library version too old)"
7248#elif defined(OPENSSL_NO_TLSEXT)
7249 "no (disabled via OPENSSL_NO_TLSEXT)"
7250#else
7251 "yes"
7252#endif
7253 "", ptr);
7254
7255 memprintf(&ptr, "%s\nOpenSSL library supports SNI : "
7256#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
7257 "yes"
7258#else
7259#ifdef OPENSSL_NO_TLSEXT
7260 "no (because of OPENSSL_NO_TLSEXT)"
7261#else
7262 "no (version might be too old, 0.9.8f min needed)"
7263#endif
7264#endif
7265 "", ptr);
7266
Emmanuel Hocdetf80bc242017-07-12 14:25:38 +02007267 memprintf(&ptr, "%s\nOpenSSL library supports :", ptr);
7268 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
7269 if (methodVersions[i].option)
7270 memprintf(&ptr, "%s %s", ptr, methodVersions[i].name);
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01007271
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007272 hap_register_build_opts(ptr, 1);
Willy Tarreau80713382018-11-26 10:19:54 +01007273}
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007274
Willy Tarreau80713382018-11-26 10:19:54 +01007275INITCALL0(STG_REGISTER, ssl_register_build_options);
Remi Gacogne4f902b82015-05-28 16:23:00 +02007276
Emeric Brun46591952012-05-18 15:47:34 +02007277
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007278#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00007279void ssl_free_engines(void) {
7280 struct ssl_engine_list *wl, *wlb;
7281 /* free up engine list */
7282 list_for_each_entry_safe(wl, wlb, &openssl_engines, list) {
7283 ENGINE_finish(wl->e);
7284 ENGINE_free(wl->e);
Willy Tarreau2b718102021-04-21 07:32:39 +02007285 LIST_DELETE(&wl->list);
Grant Zhang872f9c22017-01-21 01:10:18 +00007286 free(wl);
7287 }
7288}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007289#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +02007290
Remi Gacogned3a23c32015-05-28 16:39:47 +02007291#ifndef OPENSSL_NO_DH
Grant Zhang872f9c22017-01-21 01:10:18 +00007292void ssl_free_dh(void) {
7293 if (local_dh_1024) {
7294 DH_free(local_dh_1024);
7295 local_dh_1024 = NULL;
7296 }
7297 if (local_dh_2048) {
7298 DH_free(local_dh_2048);
7299 local_dh_2048 = NULL;
7300 }
7301 if (local_dh_4096) {
7302 DH_free(local_dh_4096);
7303 local_dh_4096 = NULL;
7304 }
Remi Gacogne47783ef2015-05-29 15:53:22 +02007305 if (global_dh) {
7306 DH_free(global_dh);
7307 global_dh = NULL;
7308 }
Grant Zhang872f9c22017-01-21 01:10:18 +00007309}
7310#endif
7311
7312__attribute__((destructor))
7313static void __ssl_sock_deinit(void)
7314{
7315#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02007316 if (ssl_ctx_lru_tree) {
7317 lru64_destroy(ssl_ctx_lru_tree);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01007318 HA_RWLOCK_DESTROY(&ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +02007319 }
Remi Gacogned3a23c32015-05-28 16:39:47 +02007320#endif
7321
Willy Tarreau5db847a2019-05-09 14:13:35 +02007322#if (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02007323 ERR_remove_state(0);
7324 ERR_free_strings();
7325
7326 EVP_cleanup();
Rosen Penev68185952018-12-14 08:47:02 -08007327#endif
Remi Gacogned3a23c32015-05-28 16:39:47 +02007328
Willy Tarreau5db847a2019-05-09 14:13:35 +02007329#if (HA_OPENSSL_VERSION_NUMBER >= 0x00907000L) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02007330 CRYPTO_cleanup_all_ex_data();
7331#endif
Olivier Houcharda8955d52019-04-07 22:00:38 +02007332 BIO_meth_free(ha_meth);
Remi Gacogned3a23c32015-05-28 16:39:47 +02007333}
7334
William Dauchyf6370442020-11-14 19:25:33 +01007335/* Activate ssl on server <s>.
7336 * do nothing if there is no change to apply
7337 *
7338 * Must be called with the server lock held.
7339 */
7340void ssl_sock_set_srv(struct server *s, signed char use_ssl)
7341{
7342 if (s->use_ssl == use_ssl)
7343 return;
7344
7345 s->use_ssl = use_ssl;
7346 if (s->use_ssl == 1)
7347 s->xprt = &ssl_sock;
7348 else
William Dauchyf5186442022-01-06 16:57:15 +01007349 s->xprt = xprt_get(XPRT_RAW);
William Dauchyf6370442020-11-14 19:25:33 +01007350}
7351
Emeric Brun46591952012-05-18 15:47:34 +02007352/*
7353 * Local variables:
7354 * c-indent-level: 8
7355 * c-basic-offset: 8
7356 * End:
7357 */