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Emeric Brun46591952012-05-18 15:47:34 +02002/*
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02003 * SSL/TLS transport layer over SOCK_STREAM sockets
Emeric Brun46591952012-05-18 15:47:34 +02004 *
5 * Copyright (C) 2012 EXCELIANCE, Emeric Brun <ebrun@exceliance.fr>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 *
Willy Tarreau69845df2012-09-10 09:43:09 +020012 * Acknowledgement:
13 * We'd like to specially thank the Stud project authors for a very clean
14 * and well documented code which helped us understand how the OpenSSL API
15 * ought to be used in non-blocking mode. This is one difficult part which
16 * is not easy to get from the OpenSSL doc, and reading the Stud code made
17 * it much more obvious than the examples in the OpenSSL package. Keep up
18 * the good works, guys !
19 *
20 * Stud is an extremely efficient and scalable SSL/TLS proxy which combines
21 * particularly well with haproxy. For more info about this project, visit :
22 * https://github.com/bumptech/stud
23 *
Emeric Brun46591952012-05-18 15:47:34 +020024 */
25
Willy Tarreau8d164dc2019-05-10 09:35:00 +020026/* Note: do NOT include openssl/xxx.h here, do it in openssl-compat.h */
Emeric Brun46591952012-05-18 15:47:34 +020027#define _GNU_SOURCE
Emeric Brunfc0421f2012-09-07 17:30:07 +020028#include <ctype.h>
29#include <dirent.h>
Emeric Brun46591952012-05-18 15:47:34 +020030#include <errno.h>
31#include <fcntl.h>
32#include <stdio.h>
33#include <stdlib.h>
Emeric Brunfc0421f2012-09-07 17:30:07 +020034#include <string.h>
35#include <unistd.h>
Emeric Brun46591952012-05-18 15:47:34 +020036
37#include <sys/socket.h>
38#include <sys/stat.h>
39#include <sys/types.h>
Christopher Faulet31af49d2015-06-09 17:29:50 +020040#include <netdb.h>
Emeric Brun46591952012-05-18 15:47:34 +020041#include <netinet/tcp.h>
42
Willy Tarreaub2551052020-06-09 09:07:15 +020043#include <import/ebpttree.h>
44#include <import/ebsttree.h>
Christopher Faulet31af49d2015-06-09 17:29:50 +020045#include <import/lru.h>
46#include <import/xxhash.h>
47
Willy Tarreaub2551052020-06-09 09:07:15 +020048#include <haproxy/api.h>
49#include <haproxy/arg.h>
50#include <haproxy/base64.h>
Willy Tarreauf1d32c42020-06-04 21:07:02 +020051#include <haproxy/channel.h>
Willy Tarreauc13ed532020-06-02 10:22:45 +020052#include <haproxy/chunk.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020053#include <haproxy/cli.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020054#include <haproxy/connection.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020055#include <haproxy/dynbuf.h>
Willy Tarreau8d366972020-05-27 16:10:29 +020056#include <haproxy/errors.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020057#include <haproxy/fd.h>
58#include <haproxy/freq_ctr.h>
Willy Tarreau762d7a52020-06-04 11:23:07 +020059#include <haproxy/frontend.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020060#include <haproxy/global.h>
Willy Tarreauc761f842020-06-04 11:40:28 +020061#include <haproxy/http_rules.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020062#include <haproxy/log.h>
Willy Tarreau6019fab2020-05-27 16:26:00 +020063#include <haproxy/openssl-compat.h>
Willy Tarreau225a90a2020-06-04 15:06:28 +020064#include <haproxy/pattern-t.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020065#include <haproxy/proto_tcp.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020066#include <haproxy/proxy.h>
Willy Tarreau1e56f922020-06-04 23:20:13 +020067#include <haproxy/server.h>
Willy Tarreau334099c2020-06-03 18:38:48 +020068#include <haproxy/shctx.h>
Willy Tarreau47d7f902020-06-04 14:25:47 +020069#include <haproxy/ssl_ckch.h>
Willy Tarreau52d88722020-06-04 14:29:23 +020070#include <haproxy/ssl_crtlist.h>
Willy Tarreau209108d2020-06-04 20:30:20 +020071#include <haproxy/ssl_sock.h>
Willy Tarreaub2bd8652020-06-04 14:21:22 +020072#include <haproxy/ssl_utils.h>
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,
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500130#ifdef HAVE_OPENSSL_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" */
186struct task *ssl_sock_io_cb(struct task *, void *, unsigned short);
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
William Lallemanddad31052020-05-14 17:47:32 +0200343int ssl_store_load_locations_file(char *path)
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200344{
345 if (ssl_store_get0_locations_file(path) == NULL) {
346 struct cafile_entry *ca_e;
347 X509_STORE *store = X509_STORE_new();
348 if (X509_STORE_load_locations(store, path, NULL)) {
349 int pathlen;
350 pathlen = strlen(path);
351 ca_e = calloc(1, sizeof(*ca_e) + pathlen + 1);
352 if (ca_e) {
353 memcpy(ca_e->path, path, pathlen + 1);
354 ca_e->ca_store = store;
355 ebst_insert(&cafile_tree, &ca_e->node);
356 return 1;
357 }
358 }
359 X509_STORE_free(store);
360 return 0;
361 }
362 return 1;
363}
364
365/* mimic what X509_STORE_load_locations do with store_ctx */
366static int ssl_set_cert_crl_file(X509_STORE *store_ctx, char *path)
367{
368 X509_STORE *store;
369 store = ssl_store_get0_locations_file(path);
370 if (store_ctx && store) {
371 int i;
372 X509_OBJECT *obj;
373 STACK_OF(X509_OBJECT) *objs = X509_STORE_get0_objects(store);
374 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
375 obj = sk_X509_OBJECT_value(objs, i);
376 switch (X509_OBJECT_get_type(obj)) {
377 case X509_LU_X509:
378 X509_STORE_add_cert(store_ctx, X509_OBJECT_get0_X509(obj));
379 break;
380 case X509_LU_CRL:
381 X509_STORE_add_crl(store_ctx, X509_OBJECT_get0_X509_CRL(obj));
382 break;
383 default:
384 break;
385 }
386 }
387 return 1;
388 }
389 return 0;
390}
391
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +0500392/* SSL_CTX_load_verify_locations substitute, internally call X509_STORE_load_locations */
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200393static int ssl_set_verify_locations_file(SSL_CTX *ctx, char *path)
394{
395 X509_STORE *store_ctx = SSL_CTX_get_cert_store(ctx);
396 return ssl_set_cert_crl_file(store_ctx, path);
397}
398
Emmanuel Hocdet129d3282019-10-24 18:08:51 +0200399/*
400 Extract CA_list from CA_file already in tree.
401 Duplicate ca_name is tracking with ebtree. It's simplify openssl compatibility.
402 Return a shared ca_list: SSL_dup_CA_list must be used before set it on SSL_CTX.
403*/
404static STACK_OF(X509_NAME)* ssl_get_client_ca_file(char *path)
405{
406 struct ebmb_node *eb;
407 struct cafile_entry *ca_e;
408
409 eb = ebst_lookup(&cafile_tree, path);
410 if (!eb)
411 return NULL;
412 ca_e = ebmb_entry(eb, struct cafile_entry, node);
413
414 if (ca_e->ca_list == NULL) {
415 int i;
416 unsigned long key;
417 struct eb_root ca_name_tree = EB_ROOT;
418 struct eb64_node *node, *back;
419 struct {
420 struct eb64_node node;
421 X509_NAME *xname;
422 } *ca_name;
423 STACK_OF(X509_OBJECT) *objs;
424 STACK_OF(X509_NAME) *skn;
425 X509 *x;
426 X509_NAME *xn;
427
428 skn = sk_X509_NAME_new_null();
429 /* take x509 from cafile_tree */
430 objs = X509_STORE_get0_objects(ca_e->ca_store);
431 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
432 x = X509_OBJECT_get0_X509(sk_X509_OBJECT_value(objs, i));
433 if (!x)
434 continue;
435 xn = X509_get_subject_name(x);
436 if (!xn)
437 continue;
438 /* Check for duplicates. */
439 key = X509_NAME_hash(xn);
440 for (node = eb64_lookup(&ca_name_tree, key), ca_name = NULL;
441 node && ca_name == NULL;
442 node = eb64_next(node)) {
443 ca_name = container_of(node, typeof(*ca_name), node);
444 if (X509_NAME_cmp(xn, ca_name->xname) != 0)
445 ca_name = NULL;
446 }
447 /* find a duplicate */
448 if (ca_name)
449 continue;
450 ca_name = calloc(1, sizeof *ca_name);
451 xn = X509_NAME_dup(xn);
452 if (!ca_name ||
453 !xn ||
454 !sk_X509_NAME_push(skn, xn)) {
455 free(ca_name);
456 X509_NAME_free(xn);
457 sk_X509_NAME_pop_free(skn, X509_NAME_free);
458 sk_X509_NAME_free(skn);
459 skn = NULL;
460 break;
461 }
462 ca_name->node.key = key;
463 ca_name->xname = xn;
464 eb64_insert(&ca_name_tree, &ca_name->node);
465 }
466 ca_e->ca_list = skn;
467 /* remove temporary ca_name tree */
468 node = eb64_first(&ca_name_tree);
469 while (node) {
470 ca_name = container_of(node, typeof(*ca_name), node);
471 back = eb64_next(node);
472 eb64_delete(node);
473 free(ca_name);
474 node = back;
475 }
476 }
477 return ca_e->ca_list;
478}
479
Willy Tarreaubafbe012017-11-24 17:34:44 +0100480struct pool_head *pool_head_ssl_capture = NULL;
William Lallemand15e16942020-05-15 00:25:08 +0200481int ssl_capture_ptr_index = -1;
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +0100482int ssl_app_data_index = -1;
Willy Tarreauef934602016-12-22 23:12:01 +0100483
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500484#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200485int ssl_keylog_index = -1;
486struct pool_head *pool_head_ssl_keylog = NULL;
487struct pool_head *pool_head_ssl_keylog_str = NULL;
488#endif
489
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200490#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
491struct list tlskeys_reference = LIST_HEAD_INIT(tlskeys_reference);
492#endif
493
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200494#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200495unsigned int openssl_engines_initialized;
Grant Zhang872f9c22017-01-21 01:10:18 +0000496struct list openssl_engines = LIST_HEAD_INIT(openssl_engines);
497struct ssl_engine_list {
498 struct list list;
499 ENGINE *e;
500};
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200501#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000502
Remi Gacogne8de54152014-07-15 11:36:40 +0200503#ifndef OPENSSL_NO_DH
Remi Gacogne4f902b82015-05-28 16:23:00 +0200504static int ssl_dh_ptr_index = -1;
Remi Gacogne47783ef2015-05-29 15:53:22 +0200505static DH *global_dh = NULL;
Remi Gacogne8de54152014-07-15 11:36:40 +0200506static DH *local_dh_1024 = NULL;
507static DH *local_dh_2048 = NULL;
508static DH *local_dh_4096 = NULL;
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +0100509static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen);
Remi Gacogne8de54152014-07-15 11:36:40 +0200510#endif /* OPENSSL_NO_DH */
511
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100512#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Christopher Faulet31af49d2015-06-09 17:29:50 +0200513/* X509V3 Extensions that will be added on generated certificates */
514#define X509V3_EXT_SIZE 5
515static char *x509v3_ext_names[X509V3_EXT_SIZE] = {
516 "basicConstraints",
517 "nsComment",
518 "subjectKeyIdentifier",
519 "authorityKeyIdentifier",
520 "keyUsage",
521};
522static char *x509v3_ext_values[X509V3_EXT_SIZE] = {
523 "CA:FALSE",
524 "\"OpenSSL Generated Certificate\"",
525 "hash",
526 "keyid,issuer:always",
527 "nonRepudiation,digitalSignature,keyEncipherment"
528};
Christopher Faulet31af49d2015-06-09 17:29:50 +0200529/* LRU cache to store generated certificate */
530static struct lru64_head *ssl_ctx_lru_tree = NULL;
531static unsigned int ssl_ctx_lru_seed = 0;
Emeric Brun821bb9b2017-06-15 16:37:39 +0200532static unsigned int ssl_ctx_serial;
Willy Tarreau86abe442018-11-25 20:12:18 +0100533__decl_rwlock(ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200534
Willy Tarreauc8ad3be2015-06-17 15:48:26 +0200535#endif // SSL_CTRL_SET_TLSEXT_HOSTNAME
536
yanbzhube2774d2015-12-10 15:07:30 -0500537/* The order here matters for picking a default context,
538 * keep the most common keytype at the bottom of the list
539 */
540const char *SSL_SOCK_KEYTYPE_NAMES[] = {
541 "dsa",
542 "ecdsa",
543 "rsa"
544};
yanbzhube2774d2015-12-10 15:07:30 -0500545
William Lallemandc3cd35f2017-11-28 11:04:43 +0100546static struct shared_context *ssl_shctx = NULL; /* ssl shared session cache */
William Lallemand4f45bb92017-10-30 20:08:51 +0100547static struct eb_root *sh_ssl_sess_tree; /* ssl shared session tree */
548
Dragan Dosen9ac98092020-05-11 15:51:45 +0200549/* Dedicated callback functions for heartbeat and clienthello.
550 */
551#ifdef TLS1_RT_HEARTBEAT
552static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
553 int content_type, const void *buf, size_t len,
554 SSL *ssl);
555#endif
556static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
557 int content_type, const void *buf, size_t len,
558 SSL *ssl);
559
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500560#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200561static void ssl_init_keylog(struct connection *conn, int write_p, int version,
562 int content_type, const void *buf, size_t len,
563 SSL *ssl);
564#endif
565
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200566/* List head of all registered SSL/TLS protocol message callbacks. */
567struct list ssl_sock_msg_callbacks = LIST_HEAD_INIT(ssl_sock_msg_callbacks);
568
569/* Registers the function <func> in order to be called on SSL/TLS protocol
570 * message processing. It will return 0 if the function <func> is not set
571 * or if it fails to allocate memory.
572 */
573int ssl_sock_register_msg_callback(ssl_sock_msg_callback_func func)
574{
575 struct ssl_sock_msg_callback *cbk;
576
577 if (!func)
578 return 0;
579
580 cbk = calloc(1, sizeof(*cbk));
581 if (!cbk) {
582 ha_alert("out of memory in ssl_sock_register_msg_callback().\n");
583 return 0;
584 }
585
586 cbk->func = func;
587
588 LIST_ADDQ(&ssl_sock_msg_callbacks, &cbk->list);
589
590 return 1;
591}
592
Dragan Dosen9ac98092020-05-11 15:51:45 +0200593/* Used to register dedicated SSL/TLS protocol message callbacks.
594 */
595static int ssl_sock_register_msg_callbacks(void)
596{
597#ifdef TLS1_RT_HEARTBEAT
598 if (!ssl_sock_register_msg_callback(ssl_sock_parse_heartbeat))
599 return ERR_ABORT;
600#endif
601 if (global_ssl.capture_cipherlist > 0) {
602 if (!ssl_sock_register_msg_callback(ssl_sock_parse_clienthello))
603 return ERR_ABORT;
604 }
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500605#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200606 if (global_ssl.keylog > 0) {
607 if (!ssl_sock_register_msg_callback(ssl_init_keylog))
608 return ERR_ABORT;
609 }
610#endif
611
Christopher Fauletfc633b62020-11-06 15:24:23 +0100612 return ERR_NONE;
Dragan Dosen9ac98092020-05-11 15:51:45 +0200613}
614
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200615/* Used to free all SSL/TLS protocol message callbacks that were
616 * registered by using ssl_sock_register_msg_callback().
617 */
618static void ssl_sock_unregister_msg_callbacks(void)
619{
620 struct ssl_sock_msg_callback *cbk, *cbkback;
621
622 list_for_each_entry_safe(cbk, cbkback, &ssl_sock_msg_callbacks, list) {
623 LIST_DEL(&cbk->list);
624 free(cbk);
625 }
626}
627
Dragan Doseneb607fe2020-05-11 17:17:06 +0200628SSL *ssl_sock_get_ssl_object(struct connection *conn)
629{
630 if (!ssl_sock_is_ssl(conn))
631 return NULL;
632
633 return ((struct ssl_sock_ctx *)(conn->xprt_ctx))->ssl;
634}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100635/*
636 * This function gives the detail of the SSL error. It is used only
637 * if the debug mode and the verbose mode are activated. It dump all
638 * the SSL error until the stack was empty.
639 */
640static forceinline void ssl_sock_dump_errors(struct connection *conn)
641{
642 unsigned long ret;
643
644 if (unlikely(global.mode & MODE_DEBUG)) {
645 while(1) {
646 ret = ERR_get_error();
647 if (ret == 0)
648 return;
649 fprintf(stderr, "fd[%04x] OpenSSL error[0x%lx] %s: %s\n",
Willy Tarreau585744b2017-08-24 14:31:19 +0200650 (unsigned short)conn->handle.fd, ret,
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100651 ERR_func_error_string(ret), ERR_reason_error_string(ret));
652 }
653 }
654}
655
yanbzhube2774d2015-12-10 15:07:30 -0500656
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200657#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200658int ssl_init_single_engine(const char *engine_id, const char *def_algorithms)
Grant Zhang872f9c22017-01-21 01:10:18 +0000659{
660 int err_code = ERR_ABORT;
661 ENGINE *engine;
662 struct ssl_engine_list *el;
663
664 /* grab the structural reference to the engine */
665 engine = ENGINE_by_id(engine_id);
666 if (engine == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100667 ha_alert("ssl-engine %s: failed to get structural reference\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000668 goto fail_get;
669 }
670
671 if (!ENGINE_init(engine)) {
672 /* the engine couldn't initialise, release it */
Christopher Faulet767a84b2017-11-24 16:50:31 +0100673 ha_alert("ssl-engine %s: failed to initialize\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000674 goto fail_init;
675 }
676
677 if (ENGINE_set_default_string(engine, def_algorithms) == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100678 ha_alert("ssl-engine %s: failed on ENGINE_set_default_string\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000679 goto fail_set_method;
680 }
681
682 el = calloc(1, sizeof(*el));
683 el->e = engine;
684 LIST_ADD(&openssl_engines, &el->list);
Emeric Brunece0c332017-12-06 13:51:49 +0100685 nb_engines++;
686 if (global_ssl.async)
687 global.ssl_used_async_engines = nb_engines;
Grant Zhang872f9c22017-01-21 01:10:18 +0000688 return 0;
689
690fail_set_method:
691 /* release the functional reference from ENGINE_init() */
692 ENGINE_finish(engine);
693
694fail_init:
695 /* release the structural reference from ENGINE_by_id() */
696 ENGINE_free(engine);
697
698fail_get:
699 return err_code;
700}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200701#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000702
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +0500703#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +0200704/*
705 * openssl async fd handler
706 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200707void ssl_async_fd_handler(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000708{
Olivier Houchardea8dd942019-05-20 14:02:16 +0200709 struct ssl_sock_ctx *ctx = fdtab[fd].owner;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000710
Emeric Brun3854e012017-05-17 20:42:48 +0200711 /* fd is an async enfine fd, we must stop
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000712 * to poll this fd until it is requested
713 */
Emeric Brunbbc16542017-06-02 15:54:06 +0000714 fd_stop_recv(fd);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000715 fd_cant_recv(fd);
716
717 /* crypto engine is available, let's notify the associated
718 * connection that it can pursue its processing.
719 */
Olivier Houcharda4598262020-09-15 22:16:02 +0200720 tasklet_wakeup(ctx->wait_event.tasklet);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000721}
722
Emeric Brun3854e012017-05-17 20:42:48 +0200723/*
724 * openssl async delayed SSL_free handler
725 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200726void ssl_async_fd_free(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000727{
728 SSL *ssl = fdtab[fd].owner;
Emeric Brun3854e012017-05-17 20:42:48 +0200729 OSSL_ASYNC_FD all_fd[32];
730 size_t num_all_fds = 0;
731 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000732
Emeric Brun3854e012017-05-17 20:42:48 +0200733 /* We suppose that the async job for a same SSL *
734 * are serialized. So if we are awake it is
735 * because the running job has just finished
736 * and we can remove all async fds safely
737 */
738 SSL_get_all_async_fds(ssl, NULL, &num_all_fds);
739 if (num_all_fds > 32) {
740 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
741 return;
742 }
743
744 SSL_get_all_async_fds(ssl, all_fd, &num_all_fds);
745 for (i=0 ; i < num_all_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +0200746 fd_stop_both(all_fd[i]);
Emeric Brun3854e012017-05-17 20:42:48 +0200747
748 /* Now we can safely call SSL_free, no more pending job in engines */
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000749 SSL_free(ssl);
Olivier Houchard2be5a4c2019-03-08 18:54:43 +0100750 _HA_ATOMIC_SUB(&sslconns, 1);
751 _HA_ATOMIC_SUB(&jobs, 1);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000752}
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000753/*
Emeric Brun3854e012017-05-17 20:42:48 +0200754 * function used to manage a returned SSL_ERROR_WANT_ASYNC
755 * and enable/disable polling for async fds
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000756 */
Olivier Houchardea8dd942019-05-20 14:02:16 +0200757static inline void ssl_async_process_fds(struct ssl_sock_ctx *ctx)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000758{
Willy Tarreaua9786b62018-01-25 07:22:13 +0100759 OSSL_ASYNC_FD add_fd[32];
Emeric Brun3854e012017-05-17 20:42:48 +0200760 OSSL_ASYNC_FD del_fd[32];
Olivier Houchardea8dd942019-05-20 14:02:16 +0200761 SSL *ssl = ctx->ssl;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000762 size_t num_add_fds = 0;
763 size_t num_del_fds = 0;
Emeric Brun3854e012017-05-17 20:42:48 +0200764 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000765
766 SSL_get_changed_async_fds(ssl, NULL, &num_add_fds, NULL,
767 &num_del_fds);
Emeric Brun3854e012017-05-17 20:42:48 +0200768 if (num_add_fds > 32 || num_del_fds > 32) {
769 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 +0000770 return;
771 }
772
Emeric Brun3854e012017-05-17 20:42:48 +0200773 SSL_get_changed_async_fds(ssl, add_fd, &num_add_fds, del_fd, &num_del_fds);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000774
Emeric Brun3854e012017-05-17 20:42:48 +0200775 /* We remove unused fds from the fdtab */
776 for (i=0 ; i < num_del_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +0200777 fd_stop_both(del_fd[i]);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000778
Emeric Brun3854e012017-05-17 20:42:48 +0200779 /* We add new fds to the fdtab */
780 for (i=0 ; i < num_add_fds ; i++) {
Olivier Houchardea8dd942019-05-20 14:02:16 +0200781 fd_insert(add_fd[i], ctx, ssl_async_fd_handler, tid_bit);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000782 }
783
Emeric Brun3854e012017-05-17 20:42:48 +0200784 num_add_fds = 0;
785 SSL_get_all_async_fds(ssl, NULL, &num_add_fds);
786 if (num_add_fds > 32) {
787 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
788 return;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000789 }
Emeric Brun3854e012017-05-17 20:42:48 +0200790
791 /* We activate the polling for all known async fds */
792 SSL_get_all_async_fds(ssl, add_fd, &num_add_fds);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000793 for (i=0 ; i < num_add_fds ; i++) {
Emeric Brun3854e012017-05-17 20:42:48 +0200794 fd_want_recv(add_fd[i]);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000795 /* To ensure that the fd cache won't be used
796 * We'll prefer to catch a real RD event
797 * because handling an EAGAIN on this fd will
798 * result in a context switch and also
799 * some engines uses a fd in blocking mode.
800 */
801 fd_cant_recv(add_fd[i]);
802 }
Emeric Brun3854e012017-05-17 20:42:48 +0200803
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000804}
805#endif
806
William Lallemand104a7a62019-10-14 14:14:59 +0200807#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200808/*
809 * This function returns the number of seconds elapsed
810 * since the Epoch, 1970-01-01 00:00:00 +0000 (UTC) and the
811 * date presented un ASN1_GENERALIZEDTIME.
812 *
813 * In parsing error case, it returns -1.
814 */
815static long asn1_generalizedtime_to_epoch(ASN1_GENERALIZEDTIME *d)
816{
817 long epoch;
818 char *p, *end;
819 const unsigned short month_offset[12] = {
820 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
821 };
822 int year, month;
823
824 if (!d || (d->type != V_ASN1_GENERALIZEDTIME)) return -1;
825
826 p = (char *)d->data;
827 end = p + d->length;
828
829 if (end - p < 4) return -1;
830 year = 1000 * (p[0] - '0') + 100 * (p[1] - '0') + 10 * (p[2] - '0') + p[3] - '0';
831 p += 4;
832 if (end - p < 2) return -1;
833 month = 10 * (p[0] - '0') + p[1] - '0';
834 if (month < 1 || month > 12) return -1;
835 /* Compute the number of seconds since 1 jan 1970 and the beginning of current month
836 We consider leap years and the current month (<marsh or not) */
837 epoch = ( ((year - 1970) * 365)
838 + ((year - (month < 3)) / 4 - (year - (month < 3)) / 100 + (year - (month < 3)) / 400)
839 - ((1970 - 1) / 4 - (1970 - 1) / 100 + (1970 - 1) / 400)
840 + month_offset[month-1]
841 ) * 24 * 60 * 60;
842 p += 2;
843 if (end - p < 2) return -1;
844 /* Add the number of seconds of completed days of current month */
845 epoch += (10 * (p[0] - '0') + p[1] - '0' - 1) * 24 * 60 * 60;
846 p += 2;
847 if (end - p < 2) return -1;
848 /* Add the completed hours of the current day */
849 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60 * 60;
850 p += 2;
851 if (end - p < 2) return -1;
852 /* Add the completed minutes of the current hour */
853 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60;
854 p += 2;
855 if (p == end) return -1;
856 /* Test if there is available seconds */
857 if (p[0] < '0' || p[0] > '9')
858 goto nosec;
859 if (end - p < 2) return -1;
860 /* Add the seconds of the current minute */
861 epoch += 10 * (p[0] - '0') + p[1] - '0';
862 p += 2;
863 if (p == end) return -1;
864 /* Ignore seconds float part if present */
865 if (p[0] == '.') {
866 do {
867 if (++p == end) return -1;
868 } while (p[0] >= '0' && p[0] <= '9');
869 }
870
871nosec:
872 if (p[0] == 'Z') {
873 if (end - p != 1) return -1;
874 return epoch;
875 }
876 else if (p[0] == '+') {
877 if (end - p != 5) return -1;
878 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700879 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 +0200880 }
881 else if (p[0] == '-') {
882 if (end - p != 5) return -1;
883 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700884 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 +0200885 }
886
887 return -1;
888}
889
William Lallemand104a7a62019-10-14 14:14:59 +0200890/*
891 * struct alignment works here such that the key.key is the same as key_data
892 * Do not change the placement of key_data
893 */
894struct certificate_ocsp {
895 struct ebmb_node key;
896 unsigned char key_data[OCSP_MAX_CERTID_ASN1_LENGTH];
897 struct buffer response;
William Lallemand76b4a122020-08-04 17:41:39 +0200898 int refcount;
William Lallemand104a7a62019-10-14 14:14:59 +0200899 long expire;
900};
901
902struct ocsp_cbk_arg {
903 int is_single;
904 int single_kt;
905 union {
906 struct certificate_ocsp *s_ocsp;
907 /*
908 * m_ocsp will have multiple entries dependent on key type
909 * Entry 0 - DSA
910 * Entry 1 - ECDSA
911 * Entry 2 - RSA
912 */
913 struct certificate_ocsp *m_ocsp[SSL_SOCK_NUM_KEYTYPES];
914 };
915};
916
Emeric Brun1d3865b2014-06-20 15:37:32 +0200917static struct eb_root cert_ocsp_tree = EB_ROOT_UNIQUE;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200918
919/* This function starts to check if the OCSP response (in DER format) contained
920 * in chunk 'ocsp_response' is valid (else exits on error).
921 * If 'cid' is not NULL, it will be compared to the OCSP certificate ID
922 * contained in the OCSP Response and exits on error if no match.
923 * If it's a valid OCSP Response:
924 * If 'ocsp' is not NULL, the chunk is copied in the OCSP response's container
925 * pointed by 'ocsp'.
926 * If 'ocsp' is NULL, the function looks up into the OCSP response's
927 * containers tree (using as index the ASN1 form of the OCSP Certificate ID extracted
928 * from the response) and exits on error if not found. Finally, If an OCSP response is
929 * already present in the container, it will be overwritten.
930 *
931 * Note: OCSP response containing more than one OCSP Single response is not
932 * considered valid.
933 *
934 * Returns 0 on success, 1 in error case.
935 */
Willy Tarreau83061a82018-07-13 11:56:34 +0200936static int ssl_sock_load_ocsp_response(struct buffer *ocsp_response,
937 struct certificate_ocsp *ocsp,
938 OCSP_CERTID *cid, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +0200939{
940 OCSP_RESPONSE *resp;
941 OCSP_BASICRESP *bs = NULL;
942 OCSP_SINGLERESP *sr;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200943 OCSP_CERTID *id;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200944 unsigned char *p = (unsigned char *) ocsp_response->area;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200945 int rc , count_sr;
Emeric Brun13a6b482014-06-20 15:44:34 +0200946 ASN1_GENERALIZEDTIME *revtime, *thisupd, *nextupd = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200947 int reason;
948 int ret = 1;
949
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200950 resp = d2i_OCSP_RESPONSE(NULL, (const unsigned char **)&p,
951 ocsp_response->data);
Emeric Brun4147b2e2014-06-16 18:36:30 +0200952 if (!resp) {
953 memprintf(err, "Unable to parse OCSP response");
954 goto out;
955 }
956
957 rc = OCSP_response_status(resp);
958 if (rc != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
959 memprintf(err, "OCSP response status not successful");
960 goto out;
961 }
962
963 bs = OCSP_response_get1_basic(resp);
964 if (!bs) {
965 memprintf(err, "Failed to get basic response from OCSP Response");
966 goto out;
967 }
968
969 count_sr = OCSP_resp_count(bs);
970 if (count_sr > 1) {
971 memprintf(err, "OCSP response ignored because contains multiple single responses (%d)", count_sr);
972 goto out;
973 }
974
975 sr = OCSP_resp_get0(bs, 0);
976 if (!sr) {
977 memprintf(err, "Failed to get OCSP single response");
978 goto out;
979 }
980
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200981 id = (OCSP_CERTID*)OCSP_SINGLERESP_get0_id(sr);
982
Emeric Brun4147b2e2014-06-16 18:36:30 +0200983 rc = OCSP_single_get0_status(sr, &reason, &revtime, &thisupd, &nextupd);
Emmanuel Hocdetef607052017-10-24 14:57:16 +0200984 if (rc != V_OCSP_CERTSTATUS_GOOD && rc != V_OCSP_CERTSTATUS_REVOKED) {
Emmanuel Hocdet872085c2017-10-10 15:18:52 +0200985 memprintf(err, "OCSP single response: certificate status is unknown");
Emeric Brun4147b2e2014-06-16 18:36:30 +0200986 goto out;
987 }
988
Emeric Brun13a6b482014-06-20 15:44:34 +0200989 if (!nextupd) {
990 memprintf(err, "OCSP single response: missing nextupdate");
991 goto out;
992 }
993
Emeric Brunc8b27b62014-06-19 14:16:17 +0200994 rc = OCSP_check_validity(thisupd, nextupd, OCSP_MAX_RESPONSE_TIME_SKEW, -1);
Emeric Brun4147b2e2014-06-16 18:36:30 +0200995 if (!rc) {
996 memprintf(err, "OCSP single response: no longer valid.");
997 goto out;
998 }
999
1000 if (cid) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001001 if (OCSP_id_cmp(id, cid)) {
Emeric Brun4147b2e2014-06-16 18:36:30 +02001002 memprintf(err, "OCSP single response: Certificate ID does not match certificate and issuer");
1003 goto out;
1004 }
1005 }
1006
1007 if (!ocsp) {
1008 unsigned char key[OCSP_MAX_CERTID_ASN1_LENGTH];
1009 unsigned char *p;
1010
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001011 rc = i2d_OCSP_CERTID(id, NULL);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001012 if (!rc) {
1013 memprintf(err, "OCSP single response: Unable to encode Certificate ID");
1014 goto out;
1015 }
1016
1017 if (rc > OCSP_MAX_CERTID_ASN1_LENGTH) {
1018 memprintf(err, "OCSP single response: Certificate ID too long");
1019 goto out;
1020 }
1021
1022 p = key;
1023 memset(key, 0, OCSP_MAX_CERTID_ASN1_LENGTH);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001024 i2d_OCSP_CERTID(id, &p);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001025 ocsp = (struct certificate_ocsp *)ebmb_lookup(&cert_ocsp_tree, key, OCSP_MAX_CERTID_ASN1_LENGTH);
1026 if (!ocsp) {
1027 memprintf(err, "OCSP single response: Certificate ID does not match any certificate or issuer");
1028 goto out;
1029 }
1030 }
1031
1032 /* According to comments on "chunk_dup", the
1033 previous chunk buffer will be freed */
1034 if (!chunk_dup(&ocsp->response, ocsp_response)) {
1035 memprintf(err, "OCSP response: Memory allocation error");
1036 goto out;
1037 }
1038
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001039 ocsp->expire = asn1_generalizedtime_to_epoch(nextupd) - OCSP_MAX_RESPONSE_TIME_SKEW;
1040
Emeric Brun4147b2e2014-06-16 18:36:30 +02001041 ret = 0;
1042out:
Janusz Dziemidowicz8d710492017-03-08 16:59:41 +01001043 ERR_clear_error();
1044
Emeric Brun4147b2e2014-06-16 18:36:30 +02001045 if (bs)
1046 OCSP_BASICRESP_free(bs);
1047
1048 if (resp)
1049 OCSP_RESPONSE_free(resp);
1050
1051 return ret;
1052}
1053/*
1054 * External function use to update the OCSP response in the OCSP response's
1055 * containers tree. The chunk 'ocsp_response' must contain the OCSP response
1056 * to update in DER format.
1057 *
1058 * Returns 0 on success, 1 in error case.
1059 */
Willy Tarreau83061a82018-07-13 11:56:34 +02001060int ssl_sock_update_ocsp_response(struct buffer *ocsp_response, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +02001061{
1062 return ssl_sock_load_ocsp_response(ocsp_response, NULL, NULL, err);
1063}
1064
William Lallemand4a660132019-10-14 14:51:41 +02001065#endif
1066
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001067#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
1068static 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)
1069{
Christopher Faulet16f45c82018-02-16 11:23:49 +01001070 struct tls_keys_ref *ref;
Emeric Brun9e754772019-01-10 17:51:55 +01001071 union tls_sess_key *keys;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001072 struct connection *conn;
1073 int head;
1074 int i;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001075 int ret = -1; /* error by default */
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001076
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001077 conn = SSL_get_ex_data(s, ssl_app_data_index);
Willy Tarreau07d94e42018-09-20 10:57:52 +02001078 ref = __objt_listener(conn->target)->bind_conf->keys_ref;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001079 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1080
1081 keys = ref->tlskeys;
1082 head = ref->tls_ticket_enc_index;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001083
1084 if (enc) {
1085 memcpy(key_name, keys[head].name, 16);
1086
1087 if(!RAND_pseudo_bytes(iv, EVP_MAX_IV_LENGTH))
Christopher Faulet16f45c82018-02-16 11:23:49 +01001088 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001089
Emeric Brun9e754772019-01-10 17:51:55 +01001090 if (ref->key_size_bits == 128) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001091
Emeric Brun9e754772019-01-10 17:51:55 +01001092 if(!EVP_EncryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[head].key_128.aes_key, iv))
1093 goto end;
1094
Willy Tarreau9356dac2019-05-10 09:22:53 +02001095 HMAC_Init_ex(hctx, keys[head].key_128.hmac_key, 16, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001096 ret = 1;
1097 }
1098 else if (ref->key_size_bits == 256 ) {
1099
1100 if(!EVP_EncryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[head].key_256.aes_key, iv))
1101 goto end;
1102
Willy Tarreau9356dac2019-05-10 09:22:53 +02001103 HMAC_Init_ex(hctx, keys[head].key_256.hmac_key, 32, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001104 ret = 1;
1105 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001106 } else {
1107 for (i = 0; i < TLS_TICKETS_NO; i++) {
1108 if (!memcmp(key_name, keys[(head + i) % TLS_TICKETS_NO].name, 16))
1109 goto found;
1110 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01001111 ret = 0;
1112 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001113
Christopher Faulet16f45c82018-02-16 11:23:49 +01001114 found:
Emeric Brun9e754772019-01-10 17:51:55 +01001115 if (ref->key_size_bits == 128) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001116 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 +01001117 if(!EVP_DecryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_128.aes_key, iv))
1118 goto end;
1119 /* 2 for key renewal, 1 if current key is still valid */
1120 ret = i ? 2 : 1;
1121 }
1122 else if (ref->key_size_bits == 256) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001123 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 +01001124 if(!EVP_DecryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_256.aes_key, iv))
1125 goto end;
1126 /* 2 for key renewal, 1 if current key is still valid */
1127 ret = i ? 2 : 1;
1128 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001129 }
Emeric Brun9e754772019-01-10 17:51:55 +01001130
Christopher Faulet16f45c82018-02-16 11:23:49 +01001131 end:
1132 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1133 return ret;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001134}
1135
1136struct tls_keys_ref *tlskeys_ref_lookup(const char *filename)
1137{
1138 struct tls_keys_ref *ref;
1139
1140 list_for_each_entry(ref, &tlskeys_reference, list)
1141 if (ref->filename && strcmp(filename, ref->filename) == 0)
1142 return ref;
1143 return NULL;
1144}
1145
1146struct tls_keys_ref *tlskeys_ref_lookupid(int unique_id)
1147{
1148 struct tls_keys_ref *ref;
1149
1150 list_for_each_entry(ref, &tlskeys_reference, list)
1151 if (ref->unique_id == unique_id)
1152 return ref;
1153 return NULL;
1154}
1155
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001156/* Update the key into ref: if keysize doesn't
Emeric Brun9e754772019-01-10 17:51:55 +01001157 * match existing ones, this function returns -1
1158 * else it returns 0 on success.
1159 */
1160int ssl_sock_update_tlskey_ref(struct tls_keys_ref *ref,
Willy Tarreau83061a82018-07-13 11:56:34 +02001161 struct buffer *tlskey)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001162{
Emeric Brun9e754772019-01-10 17:51:55 +01001163 if (ref->key_size_bits == 128) {
1164 if (tlskey->data != sizeof(struct tls_sess_key_128))
1165 return -1;
1166 }
1167 else if (ref->key_size_bits == 256) {
1168 if (tlskey->data != sizeof(struct tls_sess_key_256))
1169 return -1;
1170 }
1171 else
1172 return -1;
1173
Christopher Faulet16f45c82018-02-16 11:23:49 +01001174 HA_RWLOCK_WRLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001175 memcpy((char *) (ref->tlskeys + ((ref->tls_ticket_enc_index + 2) % TLS_TICKETS_NO)),
1176 tlskey->area, tlskey->data);
Christopher Faulet16f45c82018-02-16 11:23:49 +01001177 ref->tls_ticket_enc_index = (ref->tls_ticket_enc_index + 1) % TLS_TICKETS_NO;
1178 HA_RWLOCK_WRUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Emeric Brun9e754772019-01-10 17:51:55 +01001179
1180 return 0;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001181}
1182
Willy Tarreau83061a82018-07-13 11:56:34 +02001183int ssl_sock_update_tlskey(char *filename, struct buffer *tlskey, char **err)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001184{
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001185 struct tls_keys_ref *ref = tlskeys_ref_lookup(filename);
1186
1187 if(!ref) {
1188 memprintf(err, "Unable to locate the referenced filename: %s", filename);
1189 return 1;
1190 }
Emeric Brun9e754772019-01-10 17:51:55 +01001191 if (ssl_sock_update_tlskey_ref(ref, tlskey) < 0) {
1192 memprintf(err, "Invalid key size");
1193 return 1;
1194 }
1195
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001196 return 0;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001197}
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001198
1199/* This function finalize the configuration parsing. Its set all the
Willy Tarreaud1c57502016-12-22 22:46:15 +01001200 * automatic ids. It's called just after the basic checks. It returns
1201 * 0 on success otherwise ERR_*.
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001202 */
Willy Tarreaud1c57502016-12-22 22:46:15 +01001203static int tlskeys_finalize_config(void)
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001204{
1205 int i = 0;
1206 struct tls_keys_ref *ref, *ref2, *ref3;
1207 struct list tkr = LIST_HEAD_INIT(tkr);
1208
1209 list_for_each_entry(ref, &tlskeys_reference, list) {
1210 if (ref->unique_id == -1) {
1211 /* Look for the first free id. */
1212 while (1) {
1213 list_for_each_entry(ref2, &tlskeys_reference, list) {
1214 if (ref2->unique_id == i) {
1215 i++;
1216 break;
1217 }
1218 }
1219 if (&ref2->list == &tlskeys_reference)
1220 break;
1221 }
1222
1223 /* Uses the unique id and increment it for the next entry. */
1224 ref->unique_id = i;
1225 i++;
1226 }
1227 }
1228
1229 /* This sort the reference list by id. */
1230 list_for_each_entry_safe(ref, ref2, &tlskeys_reference, list) {
1231 LIST_DEL(&ref->list);
1232 list_for_each_entry(ref3, &tkr, list) {
1233 if (ref->unique_id < ref3->unique_id) {
1234 LIST_ADDQ(&ref3->list, &ref->list);
1235 break;
1236 }
1237 }
1238 if (&ref3->list == &tkr)
1239 LIST_ADDQ(&tkr, &ref->list);
1240 }
1241
1242 /* swap root */
1243 LIST_ADD(&tkr, &tlskeys_reference);
1244 LIST_DEL(&tkr);
Christopher Fauletfc633b62020-11-06 15:24:23 +01001245 return ERR_NONE;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001246}
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001247#endif /* SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB */
1248
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001249#ifndef OPENSSL_NO_OCSP
William Lallemand76b4a122020-08-04 17:41:39 +02001250int ocsp_ex_index = -1;
1251
yanbzhube2774d2015-12-10 15:07:30 -05001252int ssl_sock_get_ocsp_arg_kt_index(int evp_keytype)
1253{
1254 switch (evp_keytype) {
1255 case EVP_PKEY_RSA:
1256 return 2;
1257 case EVP_PKEY_DSA:
1258 return 0;
1259 case EVP_PKEY_EC:
1260 return 1;
1261 }
1262
1263 return -1;
1264}
1265
Emeric Brun4147b2e2014-06-16 18:36:30 +02001266/*
1267 * Callback used to set OCSP status extension content in server hello.
1268 */
1269int ssl_sock_ocsp_stapling_cbk(SSL *ssl, void *arg)
1270{
yanbzhube2774d2015-12-10 15:07:30 -05001271 struct certificate_ocsp *ocsp;
1272 struct ocsp_cbk_arg *ocsp_arg;
1273 char *ssl_buf;
William Lallemand76b4a122020-08-04 17:41:39 +02001274 SSL_CTX *ctx;
yanbzhube2774d2015-12-10 15:07:30 -05001275 EVP_PKEY *ssl_pkey;
1276 int key_type;
1277 int index;
1278
William Lallemand76b4a122020-08-04 17:41:39 +02001279 ctx = SSL_get_SSL_CTX(ssl);
1280 if (!ctx)
1281 return SSL_TLSEXT_ERR_NOACK;
1282
1283 ocsp_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
1284 if (!ocsp_arg)
1285 return SSL_TLSEXT_ERR_NOACK;
yanbzhube2774d2015-12-10 15:07:30 -05001286
1287 ssl_pkey = SSL_get_privatekey(ssl);
1288 if (!ssl_pkey)
1289 return SSL_TLSEXT_ERR_NOACK;
1290
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001291 key_type = EVP_PKEY_base_id(ssl_pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001292
1293 if (ocsp_arg->is_single && ocsp_arg->single_kt == key_type)
1294 ocsp = ocsp_arg->s_ocsp;
1295 else {
1296 /* For multiple certs per context, we have to find the correct OCSP response based on
1297 * the certificate type
1298 */
1299 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
1300
1301 if (index < 0)
1302 return SSL_TLSEXT_ERR_NOACK;
1303
1304 ocsp = ocsp_arg->m_ocsp[index];
1305
1306 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001307
1308 if (!ocsp ||
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001309 !ocsp->response.area ||
1310 !ocsp->response.data ||
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001311 (ocsp->expire < now.tv_sec))
Emeric Brun4147b2e2014-06-16 18:36:30 +02001312 return SSL_TLSEXT_ERR_NOACK;
1313
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001314 ssl_buf = OPENSSL_malloc(ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001315 if (!ssl_buf)
1316 return SSL_TLSEXT_ERR_NOACK;
1317
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001318 memcpy(ssl_buf, ocsp->response.area, ocsp->response.data);
1319 SSL_set_tlsext_status_ocsp_resp(ssl, ssl_buf, ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001320
1321 return SSL_TLSEXT_ERR_OK;
1322}
1323
William Lallemand4a660132019-10-14 14:51:41 +02001324#endif
1325
Ilya Shipitsinb3201a32020-10-18 09:11:50 +05001326#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
William Lallemand76b4a122020-08-04 17:41:39 +02001327
1328
1329/*
1330 * Decrease the refcount of the struct ocsp_response and frees it if it's not
1331 * used anymore. Also removes it from the tree if free'd.
1332 */
1333static void ssl_sock_free_ocsp(struct certificate_ocsp *ocsp)
1334{
1335 if (!ocsp)
1336 return;
1337
1338 ocsp->refcount--;
1339 if (ocsp->refcount <= 0) {
1340 ebmb_delete(&ocsp->key);
1341 chunk_destroy(&ocsp->response);
1342 free(ocsp);
1343 }
1344}
1345
1346
Emeric Brun4147b2e2014-06-16 18:36:30 +02001347/*
1348 * This function enables the handling of OCSP status extension on 'ctx' if a
William Lallemand246c0242019-10-11 08:59:13 +02001349 * ocsp_response buffer was found in the cert_key_and_chain. To enable OCSP
1350 * status extension, the issuer's certificate is mandatory. It should be
1351 * present in ckch->ocsp_issuer.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001352 *
William Lallemand246c0242019-10-11 08:59:13 +02001353 * In addition, the ckch->ocsp_reponse buffer is loaded as a DER format of an
1354 * OCSP response. If file is empty or content is not a valid OCSP response,
1355 * OCSP status extension is enabled but OCSP response is ignored (a warning is
1356 * displayed).
Emeric Brun4147b2e2014-06-16 18:36:30 +02001357 *
1358 * Returns 1 if no ".ocsp" file found, 0 if OCSP status extension is
Joseph Herlant017b3da2018-11-15 09:07:59 -08001359 * successfully enabled, or -1 in other error case.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001360 */
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001361static 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 +02001362{
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001363 X509 *x, *issuer;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001364 OCSP_CERTID *cid = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001365 int i, ret = -1;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001366 struct certificate_ocsp *ocsp = NULL, *iocsp;
1367 char *warn = NULL;
1368 unsigned char *p;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001369 void (*callback) (void);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001370
Emeric Brun4147b2e2014-06-16 18:36:30 +02001371
William Lallemand246c0242019-10-11 08:59:13 +02001372 x = ckch->cert;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001373 if (!x)
1374 goto out;
1375
William Lallemand246c0242019-10-11 08:59:13 +02001376 issuer = ckch->ocsp_issuer;
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001377 /* take issuer from chain over ocsp_issuer, is what is done historicaly */
1378 if (chain) {
1379 /* check if one of the certificate of the chain is the issuer */
1380 for (i = 0; i < sk_X509_num(chain); i++) {
1381 X509 *ti = sk_X509_value(chain, i);
1382 if (X509_check_issued(ti, x) == X509_V_OK) {
1383 issuer = ti;
1384 break;
1385 }
1386 }
1387 }
William Lallemand246c0242019-10-11 08:59:13 +02001388 if (!issuer)
1389 goto out;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001390
1391 cid = OCSP_cert_to_id(0, x, issuer);
1392 if (!cid)
1393 goto out;
1394
1395 i = i2d_OCSP_CERTID(cid, NULL);
1396 if (!i || (i > OCSP_MAX_CERTID_ASN1_LENGTH))
1397 goto out;
1398
Vincent Bernat02779b62016-04-03 13:48:43 +02001399 ocsp = calloc(1, sizeof(*ocsp));
Emeric Brun4147b2e2014-06-16 18:36:30 +02001400 if (!ocsp)
1401 goto out;
1402
1403 p = ocsp->key_data;
1404 i2d_OCSP_CERTID(cid, &p);
1405
1406 iocsp = (struct certificate_ocsp *)ebmb_insert(&cert_ocsp_tree, &ocsp->key, OCSP_MAX_CERTID_ASN1_LENGTH);
1407 if (iocsp == ocsp)
1408 ocsp = NULL;
1409
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001410#ifndef SSL_CTX_get_tlsext_status_cb
1411# define SSL_CTX_get_tlsext_status_cb(ctx, cb) \
1412 *cb = (void (*) (void))ctx->tlsext_status_cb;
1413#endif
1414 SSL_CTX_get_tlsext_status_cb(ctx, &callback);
1415
1416 if (!callback) {
William Lallemanda560c062020-07-31 11:43:20 +02001417 struct ocsp_cbk_arg *cb_arg;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001418 EVP_PKEY *pkey;
yanbzhube2774d2015-12-10 15:07:30 -05001419
William Lallemanda560c062020-07-31 11:43:20 +02001420 cb_arg = calloc(1, sizeof(*cb_arg));
1421 if (!cb_arg)
1422 goto out;
1423
yanbzhube2774d2015-12-10 15:07:30 -05001424 cb_arg->is_single = 1;
1425 cb_arg->s_ocsp = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001426 iocsp->refcount++;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001427
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001428 pkey = X509_get_pubkey(x);
1429 cb_arg->single_kt = EVP_PKEY_base_id(pkey);
1430 EVP_PKEY_free(pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001431
1432 SSL_CTX_set_tlsext_status_cb(ctx, ssl_sock_ocsp_stapling_cbk);
William Lallemand76b4a122020-08-04 17:41:39 +02001433 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 */
1434
yanbzhube2774d2015-12-10 15:07:30 -05001435 } else {
1436 /*
1437 * If the ctx has a status CB, then we have previously set an OCSP staple for this ctx
1438 * Update that cb_arg with the new cert's staple
1439 */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001440 struct ocsp_cbk_arg *cb_arg;
yanbzhube2774d2015-12-10 15:07:30 -05001441 struct certificate_ocsp *tmp_ocsp;
1442 int index;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001443 int key_type;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001444 EVP_PKEY *pkey;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001445
William Lallemand76b4a122020-08-04 17:41:39 +02001446 cb_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
yanbzhube2774d2015-12-10 15:07:30 -05001447
1448 /*
1449 * The following few lines will convert cb_arg from a single ocsp to multi ocsp
1450 * the order of operations below matter, take care when changing it
1451 */
1452 tmp_ocsp = cb_arg->s_ocsp;
1453 index = ssl_sock_get_ocsp_arg_kt_index(cb_arg->single_kt);
1454 cb_arg->s_ocsp = NULL;
1455 cb_arg->m_ocsp[index] = tmp_ocsp;
1456 cb_arg->is_single = 0;
1457 cb_arg->single_kt = 0;
1458
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001459 pkey = X509_get_pubkey(x);
1460 key_type = EVP_PKEY_base_id(pkey);
1461 EVP_PKEY_free(pkey);
1462
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001463 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
William Lallemand76b4a122020-08-04 17:41:39 +02001464 if (index >= 0 && !cb_arg->m_ocsp[index]) {
yanbzhube2774d2015-12-10 15:07:30 -05001465 cb_arg->m_ocsp[index] = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001466 iocsp->refcount++;
1467 }
yanbzhube2774d2015-12-10 15:07:30 -05001468 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001469
1470 ret = 0;
1471
1472 warn = NULL;
William Lallemand86e4d632020-08-07 00:44:32 +02001473 if (ssl_sock_load_ocsp_response(ckch->ocsp_response, iocsp, cid, &warn)) {
William Lallemand3b5f3602019-10-16 18:05:05 +02001474 memprintf(&warn, "Loading: %s. Content will be ignored", warn ? warn : "failure");
Christopher Faulet767a84b2017-11-24 16:50:31 +01001475 ha_warning("%s.\n", warn);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001476 }
1477
1478out:
Emeric Brun4147b2e2014-06-16 18:36:30 +02001479 if (cid)
1480 OCSP_CERTID_free(cid);
1481
1482 if (ocsp)
1483 free(ocsp);
1484
1485 if (warn)
1486 free(warn);
1487
Emeric Brun4147b2e2014-06-16 18:36:30 +02001488 return ret;
1489}
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01001490#endif
1491
1492#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001493static 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 +02001494{
William Lallemand4a660132019-10-14 14:51:41 +02001495 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 +02001496}
1497#endif
1498
William Lallemand4a660132019-10-14 14:51:41 +02001499
Ilya Shipitsinec609092020-11-27 02:39:48 +05001500#ifdef HAVE_SL_CTX_ADD_SERVER_CUSTOM_EXT
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001501
1502#define CT_EXTENSION_TYPE 18
1503
William Lallemand03c331c2020-05-13 10:10:01 +02001504int sctl_ex_index = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001505
1506int ssl_sock_sctl_add_cbk(SSL *ssl, unsigned ext_type, const unsigned char **out, size_t *outlen, int *al, void *add_arg)
1507{
Willy Tarreau83061a82018-07-13 11:56:34 +02001508 struct buffer *sctl = add_arg;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001509
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001510 *out = (unsigned char *) sctl->area;
1511 *outlen = sctl->data;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001512
1513 return 1;
1514}
1515
1516int ssl_sock_sctl_parse_cbk(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *parse_arg)
1517{
1518 return 1;
1519}
1520
William Lallemanda17f4112019-10-10 15:16:44 +02001521static int ssl_sock_load_sctl(SSL_CTX *ctx, struct buffer *sctl)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001522{
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001523 int ret = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001524
William Lallemanda17f4112019-10-10 15:16:44 +02001525 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 +01001526 goto out;
1527
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001528 SSL_CTX_set_ex_data(ctx, sctl_ex_index, sctl);
1529
1530 ret = 0;
1531
1532out:
1533 return ret;
1534}
1535
1536#endif
1537
Emeric Brune1f38db2012-09-03 20:36:47 +02001538void ssl_sock_infocbk(const SSL *ssl, int where, int ret)
1539{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001540 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001541 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001542 BIO *write_bio;
Willy Tarreau622317d2015-02-27 16:36:16 +01001543 (void)ret; /* shut gcc stupid warning */
Emeric Brune1f38db2012-09-03 20:36:47 +02001544
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001545#ifndef SSL_OP_NO_RENEGOTIATION
1546 /* Please note that BoringSSL defines this macro to zero so don't
1547 * change this to #if and do not assign a default value to this macro!
1548 */
Emeric Brune1f38db2012-09-03 20:36:47 +02001549 if (where & SSL_CB_HANDSHAKE_START) {
1550 /* Disable renegotiation (CVE-2009-3555) */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01001551 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 +02001552 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01001553 conn->err_code = CO_ER_SSL_RENEG;
1554 }
Emeric Brune1f38db2012-09-03 20:36:47 +02001555 }
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001556#endif
Emeric Brund8b2bb52014-01-28 15:43:53 +01001557
1558 if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001559 if (!(ctx->xprt_st & SSL_SOCK_ST_FL_16K_WBFSIZE)) {
Emeric Brund8b2bb52014-01-28 15:43:53 +01001560 /* Long certificate chains optimz
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001561 If write and read bios are different, we
Emeric Brund8b2bb52014-01-28 15:43:53 +01001562 consider that the buffering was activated,
1563 so we rise the output buffer size from 4k
1564 to 16k */
1565 write_bio = SSL_get_wbio(ssl);
1566 if (write_bio != SSL_get_rbio(ssl)) {
1567 BIO_set_write_buffer_size(write_bio, 16384);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001568 ctx->xprt_st |= SSL_SOCK_ST_FL_16K_WBFSIZE;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001569 }
1570 }
1571 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02001572}
1573
Emeric Brune64aef12012-09-21 13:15:06 +02001574/* Callback is called for each certificate of the chain during a verify
1575 ok is set to 1 if preverify detect no error on current certificate.
1576 Returns 0 to break the handshake, 1 otherwise. */
Evan Broderbe554312013-06-27 00:05:25 -07001577int ssl_sock_bind_verifycbk(int ok, X509_STORE_CTX *x_store)
Emeric Brune64aef12012-09-21 13:15:06 +02001578{
1579 SSL *ssl;
1580 struct connection *conn;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001581 struct ssl_sock_ctx *ctx;
Emeric Brun81c00f02012-09-21 14:31:21 +02001582 int err, depth;
Emeric Brune64aef12012-09-21 13:15:06 +02001583
1584 ssl = X509_STORE_CTX_get_ex_data(x_store, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001585 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emeric Brune64aef12012-09-21 13:15:06 +02001586
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001587 ctx = conn->xprt_ctx;
1588
1589 ctx->xprt_st |= SSL_SOCK_ST_FL_VERIFY_DONE;
Emeric Brune64aef12012-09-21 13:15:06 +02001590
Emeric Brun81c00f02012-09-21 14:31:21 +02001591 if (ok) /* no errors */
1592 return ok;
1593
1594 depth = X509_STORE_CTX_get_error_depth(x_store);
1595 err = X509_STORE_CTX_get_error(x_store);
1596
1597 /* check if CA error needs to be ignored */
1598 if (depth > 0) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001599 if (!SSL_SOCK_ST_TO_CA_ERROR(ctx->xprt_st)) {
1600 ctx->xprt_st |= SSL_SOCK_CA_ERROR_TO_ST(err);
1601 ctx->xprt_st |= SSL_SOCK_CAEDEPTH_TO_ST(depth);
Emeric Brunf282a812012-09-21 15:27:54 +02001602 }
1603
Willy Tarreau731248f2020-02-04 14:02:02 +01001604 if (err < 64 && __objt_listener(conn->target)->bind_conf->ca_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001605 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001606 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001607 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001608 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001609
Willy Tarreau20879a02012-12-03 16:32:10 +01001610 conn->err_code = CO_ER_SSL_CA_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001611 return 0;
1612 }
1613
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001614 if (!SSL_SOCK_ST_TO_CRTERROR(ctx->xprt_st))
1615 ctx->xprt_st |= SSL_SOCK_CRTERROR_TO_ST(err);
Emeric Brunf282a812012-09-21 15:27:54 +02001616
Emeric Brun81c00f02012-09-21 14:31:21 +02001617 /* check if certificate error needs to be ignored */
Willy Tarreau731248f2020-02-04 14:02:02 +01001618 if (err < 64 && __objt_listener(conn->target)->bind_conf->crt_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001619 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001620 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001621 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001622 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001623
Willy Tarreau20879a02012-12-03 16:32:10 +01001624 conn->err_code = CO_ER_SSL_CRT_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001625 return 0;
Emeric Brune64aef12012-09-21 13:15:06 +02001626}
1627
Dragan Dosen9ac98092020-05-11 15:51:45 +02001628#ifdef TLS1_RT_HEARTBEAT
1629static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
1630 int content_type, const void *buf, size_t len,
1631 SSL *ssl)
1632{
1633 /* test heartbeat received (write_p is set to 0
1634 for a received record) */
1635 if ((content_type == TLS1_RT_HEARTBEAT) && (write_p == 0)) {
1636 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
1637 const unsigned char *p = buf;
1638 unsigned int payload;
1639
1640 ctx->xprt_st |= SSL_SOCK_RECV_HEARTBEAT;
1641
1642 /* Check if this is a CVE-2014-0160 exploitation attempt. */
1643 if (*p != TLS1_HB_REQUEST)
1644 return;
1645
1646 if (len < 1 + 2 + 16) /* 1 type + 2 size + 0 payload + 16 padding */
1647 goto kill_it;
1648
1649 payload = (p[1] * 256) + p[2];
1650 if (3 + payload + 16 <= len)
1651 return; /* OK no problem */
1652 kill_it:
1653 /* We have a clear heartbleed attack (CVE-2014-0160), the
1654 * advertised payload is larger than the advertised packet
1655 * length, so we have garbage in the buffer between the
1656 * payload and the end of the buffer (p+len). We can't know
1657 * if the SSL stack is patched, and we don't know if we can
1658 * safely wipe out the area between p+3+len and payload.
1659 * So instead, we prevent the response from being sent by
1660 * setting the max_send_fragment to 0 and we report an SSL
1661 * error, which will kill this connection. It will be reported
1662 * above as SSL_ERROR_SSL while an other handshake failure with
1663 * a heartbeat message will be reported as SSL_ERROR_SYSCALL.
1664 */
1665 ssl->max_send_fragment = 0;
1666 SSLerr(SSL_F_TLS1_HEARTBEAT, SSL_R_SSL_HANDSHAKE_FAILURE);
1667 }
1668}
1669#endif
1670
1671static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
1672 int content_type, const void *buf, size_t len,
1673 SSL *ssl)
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001674{
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001675 struct ssl_capture *capture;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001676 unsigned char *msg;
1677 unsigned char *end;
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001678 size_t rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001679
1680 /* This function is called for "from client" and "to server"
1681 * connections. The combination of write_p == 0 and content_type == 22
Joseph Herlant017b3da2018-11-15 09:07:59 -08001682 * is only available during "from client" connection.
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001683 */
1684
1685 /* "write_p" is set to 0 is the bytes are received messages,
1686 * otherwise it is set to 1.
1687 */
1688 if (write_p != 0)
1689 return;
1690
1691 /* content_type contains the type of message received or sent
1692 * according with the SSL/TLS protocol spec. This message is
1693 * encoded with one byte. The value 256 (two bytes) is used
1694 * for designing the SSL/TLS record layer. According with the
1695 * rfc6101, the expected message (other than 256) are:
1696 * - change_cipher_spec(20)
1697 * - alert(21)
1698 * - handshake(22)
1699 * - application_data(23)
1700 * - (255)
1701 * We are interessed by the handshake and specially the client
1702 * hello.
1703 */
1704 if (content_type != 22)
1705 return;
1706
1707 /* The message length is at least 4 bytes, containing the
1708 * message type and the message length.
1709 */
1710 if (len < 4)
1711 return;
1712
1713 /* First byte of the handshake message id the type of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001714 * message. The known types are:
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001715 * - hello_request(0)
1716 * - client_hello(1)
1717 * - server_hello(2)
1718 * - certificate(11)
1719 * - server_key_exchange (12)
1720 * - certificate_request(13)
1721 * - server_hello_done(14)
1722 * We are interested by the client hello.
1723 */
1724 msg = (unsigned char *)buf;
1725 if (msg[0] != 1)
1726 return;
1727
1728 /* Next three bytes are the length of the message. The total length
1729 * must be this decoded length + 4. If the length given as argument
1730 * is not the same, we abort the protocol dissector.
1731 */
1732 rec_len = (msg[1] << 16) + (msg[2] << 8) + msg[3];
1733 if (len < rec_len + 4)
1734 return;
1735 msg += 4;
1736 end = msg + rec_len;
1737 if (end < msg)
1738 return;
1739
1740 /* Expect 2 bytes for protocol version (1 byte for major and 1 byte
1741 * for minor, the random, composed by 4 bytes for the unix time and
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001742 * 28 bytes for unix payload. So we jump 1 + 1 + 4 + 28.
1743 */
1744 msg += 1 + 1 + 4 + 28;
1745 if (msg > end)
1746 return;
1747
1748 /* Next, is session id:
1749 * if present, we have to jump by length + 1 for the size information
1750 * if not present, we have to jump by 1 only
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001751 */
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001752 if (msg[0] > 0)
1753 msg += msg[0];
1754 msg += 1;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001755 if (msg > end)
1756 return;
1757
1758 /* Next two bytes are the ciphersuite length. */
1759 if (msg + 2 > end)
1760 return;
1761 rec_len = (msg[0] << 8) + msg[1];
1762 msg += 2;
1763 if (msg + rec_len > end || msg + rec_len < msg)
1764 return;
1765
Willy Tarreaubafbe012017-11-24 17:34:44 +01001766 capture = pool_alloc_dirty(pool_head_ssl_capture);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001767 if (!capture)
1768 return;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001769 /* Compute the xxh64 of the ciphersuite. */
1770 capture->xxh64 = XXH64(msg, rec_len, 0);
1771
1772 /* Capture the ciphersuite. */
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001773 capture->ciphersuite_len = (global_ssl.capture_cipherlist < rec_len) ?
1774 global_ssl.capture_cipherlist : rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001775 memcpy(capture->ciphersuite, msg, capture->ciphersuite_len);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001776
1777 SSL_set_ex_data(ssl, ssl_capture_ptr_index, capture);
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001778}
William Lallemand7d42ef52020-07-06 11:41:30 +02001779
1780
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05001781#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02001782static void ssl_init_keylog(struct connection *conn, int write_p, int version,
1783 int content_type, const void *buf, size_t len,
1784 SSL *ssl)
1785{
1786 struct ssl_keylog *keylog;
1787
1788 if (SSL_get_ex_data(ssl, ssl_keylog_index))
1789 return;
1790
1791 keylog = pool_alloc(pool_head_ssl_keylog);
1792 if (!keylog)
1793 return;
1794
1795 memset(keylog, 0, sizeof(*keylog));
1796
1797 if (!SSL_set_ex_data(ssl, ssl_keylog_index, keylog)) {
1798 pool_free(pool_head_ssl_keylog, keylog);
1799 return;
1800 }
1801}
1802#endif
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001803
Emeric Brun29f037d2014-04-25 19:05:36 +02001804/* Callback is called for ssl protocol analyse */
1805void ssl_sock_msgcbk(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
1806{
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001807 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
1808 struct ssl_sock_msg_callback *cbk;
1809
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001810 /* Try to call all callback functions that were registered by using
1811 * ssl_sock_register_msg_callback().
1812 */
1813 list_for_each_entry(cbk, &ssl_sock_msg_callbacks, list) {
1814 cbk->func(conn, write_p, version, content_type, buf, len, ssl);
1815 }
Emeric Brun29f037d2014-04-25 19:05:36 +02001816}
1817
Bernard Spil13c53f82018-02-15 13:34:58 +01001818#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchardc7566002018-11-20 23:33:50 +01001819static int ssl_sock_srv_select_protos(SSL *s, unsigned char **out, unsigned char *outlen,
1820 const unsigned char *in, unsigned int inlen,
1821 void *arg)
1822{
1823 struct server *srv = arg;
1824
1825 if (SSL_select_next_proto(out, outlen, in, inlen, (unsigned char *)srv->ssl_ctx.npn_str,
1826 srv->ssl_ctx.npn_len) == OPENSSL_NPN_NEGOTIATED)
1827 return SSL_TLSEXT_ERR_OK;
1828 return SSL_TLSEXT_ERR_NOACK;
1829}
1830#endif
1831
1832#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001833/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001834 * negotiable protocols for NPN.
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001835 */
1836static int ssl_sock_advertise_npn_protos(SSL *s, const unsigned char **data,
1837 unsigned int *len, void *arg)
1838{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001839 struct ssl_bind_conf *conf = arg;
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001840
1841 *data = (const unsigned char *)conf->npn_str;
1842 *len = conf->npn_len;
1843 return SSL_TLSEXT_ERR_OK;
1844}
1845#endif
1846
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001847#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Willy Tarreauab861d32013-04-02 02:30:41 +02001848/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001849 * negotiable protocols for ALPN.
Willy Tarreauab861d32013-04-02 02:30:41 +02001850 */
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001851static int ssl_sock_advertise_alpn_protos(SSL *s, const unsigned char **out,
1852 unsigned char *outlen,
1853 const unsigned char *server,
1854 unsigned int server_len, void *arg)
Willy Tarreauab861d32013-04-02 02:30:41 +02001855{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001856 struct ssl_bind_conf *conf = arg;
Willy Tarreauab861d32013-04-02 02:30:41 +02001857
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001858 if (SSL_select_next_proto((unsigned char**) out, outlen, (const unsigned char *)conf->alpn_str,
1859 conf->alpn_len, server, server_len) != OPENSSL_NPN_NEGOTIATED) {
1860 return SSL_TLSEXT_ERR_NOACK;
1861 }
Willy Tarreauab861d32013-04-02 02:30:41 +02001862 return SSL_TLSEXT_ERR_OK;
1863}
1864#endif
1865
Willy Tarreauc8ad3be2015-06-17 15:48:26 +02001866#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001867#ifndef SSL_NO_GENERATE_CERTIFICATES
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02001868
Shimi Gersneradabbfe2020-08-23 13:58:13 +03001869/* Configure a DNS SAN extenion on a certificate. */
1870int ssl_sock_add_san_ext(X509V3_CTX* ctx, X509* cert, const char *servername) {
1871 int failure = 0;
1872 X509_EXTENSION *san_ext = NULL;
1873 CONF *conf = NULL;
1874 struct buffer *san_name = get_trash_chunk();
1875
1876 conf = NCONF_new(NULL);
1877 if (!conf) {
1878 failure = 1;
1879 goto cleanup;
1880 }
1881
1882 /* Build an extension based on the DNS entry above */
1883 chunk_appendf(san_name, "DNS:%s", servername);
1884 san_ext = X509V3_EXT_nconf_nid(conf, ctx, NID_subject_alt_name, san_name->area);
1885 if (!san_ext) {
1886 failure = 1;
1887 goto cleanup;
1888 }
1889
1890 /* Add the extension */
1891 if (!X509_add_ext(cert, san_ext, -1 /* Add to end */)) {
1892 failure = 1;
1893 goto cleanup;
1894 }
1895
1896 /* Success */
1897 failure = 0;
1898
1899cleanup:
1900 if (NULL != san_ext) X509_EXTENSION_free(san_ext);
1901 if (NULL != conf) NCONF_free(conf);
1902
1903 return failure;
1904}
1905
Christopher Faulet30548802015-06-11 13:39:32 +02001906/* Create a X509 certificate with the specified servername and serial. This
1907 * function returns a SSL_CTX object or NULL if an error occurs. */
Christopher Faulet7969a332015-10-09 11:15:03 +02001908static SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01001909ssl_sock_do_create_cert(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001910{
Shimi Gersner5846c492020-08-23 13:58:12 +03001911 X509 *cacert = bind_conf->ca_sign_ckch->cert;
1912 EVP_PKEY *capkey = bind_conf->ca_sign_ckch->key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001913 SSL_CTX *ssl_ctx = NULL;
1914 X509 *newcrt = NULL;
1915 EVP_PKEY *pkey = NULL;
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001916 SSL *tmp_ssl = NULL;
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001917 CONF *ctmp = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001918 X509_NAME *name;
1919 const EVP_MD *digest;
1920 X509V3_CTX ctx;
1921 unsigned int i;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001922 int key_type;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001923
Christopher Faulet48a83322017-07-28 16:56:09 +02001924 /* Get the private key of the default certificate and use it */
Ilya Shipitsinaf204882020-12-19 03:12:12 +05001925#ifdef HAVE_SSL_CTX_get0_privatekey
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001926 pkey = SSL_CTX_get0_privatekey(bind_conf->default_ctx);
1927#else
1928 tmp_ssl = SSL_new(bind_conf->default_ctx);
1929 if (tmp_ssl)
1930 pkey = SSL_get_privatekey(tmp_ssl);
1931#endif
1932 if (!pkey)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001933 goto mkcert_error;
1934
1935 /* Create the certificate */
1936 if (!(newcrt = X509_new()))
1937 goto mkcert_error;
1938
1939 /* Set version number for the certificate (X509v3) and the serial
1940 * number */
1941 if (X509_set_version(newcrt, 2L) != 1)
1942 goto mkcert_error;
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01001943 ASN1_INTEGER_set(X509_get_serialNumber(newcrt), _HA_ATOMIC_ADD(&ssl_ctx_serial, 1));
Christopher Faulet31af49d2015-06-09 17:29:50 +02001944
1945 /* Set duration for the certificate */
Rosen Penev68185952018-12-14 08:47:02 -08001946 if (!X509_gmtime_adj(X509_getm_notBefore(newcrt), (long)-60*60*24) ||
1947 !X509_gmtime_adj(X509_getm_notAfter(newcrt),(long)60*60*24*365))
Christopher Faulet31af49d2015-06-09 17:29:50 +02001948 goto mkcert_error;
1949
1950 /* set public key in the certificate */
1951 if (X509_set_pubkey(newcrt, pkey) != 1)
1952 goto mkcert_error;
1953
1954 /* Set issuer name from the CA */
1955 if (!(name = X509_get_subject_name(cacert)))
1956 goto mkcert_error;
1957 if (X509_set_issuer_name(newcrt, name) != 1)
1958 goto mkcert_error;
1959
1960 /* Set the subject name using the same, but the CN */
1961 name = X509_NAME_dup(name);
1962 if (X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC,
1963 (const unsigned char *)servername,
1964 -1, -1, 0) != 1) {
1965 X509_NAME_free(name);
1966 goto mkcert_error;
1967 }
1968 if (X509_set_subject_name(newcrt, name) != 1) {
1969 X509_NAME_free(name);
1970 goto mkcert_error;
1971 }
1972 X509_NAME_free(name);
1973
1974 /* Add x509v3 extensions as specified */
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001975 ctmp = NCONF_new(NULL);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001976 X509V3_set_ctx(&ctx, cacert, newcrt, NULL, NULL, 0);
1977 for (i = 0; i < X509V3_EXT_SIZE; i++) {
1978 X509_EXTENSION *ext;
1979
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001980 if (!(ext = X509V3_EXT_nconf(ctmp, &ctx, x509v3_ext_names[i], x509v3_ext_values[i])))
Christopher Faulet31af49d2015-06-09 17:29:50 +02001981 goto mkcert_error;
1982 if (!X509_add_ext(newcrt, ext, -1)) {
1983 X509_EXTENSION_free(ext);
1984 goto mkcert_error;
1985 }
1986 X509_EXTENSION_free(ext);
1987 }
1988
Shimi Gersneradabbfe2020-08-23 13:58:13 +03001989 /* Add SAN extension */
1990 if (ssl_sock_add_san_ext(&ctx, newcrt, servername)) {
1991 goto mkcert_error;
1992 }
1993
Christopher Faulet31af49d2015-06-09 17:29:50 +02001994 /* Sign the certificate with the CA private key */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001995
1996 key_type = EVP_PKEY_base_id(capkey);
1997
1998 if (key_type == EVP_PKEY_DSA)
1999 digest = EVP_sha1();
2000 else if (key_type == EVP_PKEY_RSA)
Christopher Faulet31af49d2015-06-09 17:29:50 +02002001 digest = EVP_sha256();
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002002 else if (key_type == EVP_PKEY_EC)
Christopher Faulet7969a332015-10-09 11:15:03 +02002003 digest = EVP_sha256();
2004 else {
Ilya Shipitsinec36c912021-01-07 11:57:42 +05002005#ifdef ASN1_PKEY_CTRL_DEFAULT_MD_NID
Christopher Faulet7969a332015-10-09 11:15:03 +02002006 int nid;
2007
2008 if (EVP_PKEY_get_default_digest_nid(capkey, &nid) <= 0)
2009 goto mkcert_error;
2010 if (!(digest = EVP_get_digestbynid(nid)))
2011 goto mkcert_error;
Christopher Faulete7db2162015-10-19 13:59:24 +02002012#else
2013 goto mkcert_error;
2014#endif
Christopher Faulet7969a332015-10-09 11:15:03 +02002015 }
2016
Christopher Faulet31af49d2015-06-09 17:29:50 +02002017 if (!(X509_sign(newcrt, capkey, digest)))
2018 goto mkcert_error;
2019
2020 /* Create and set the new SSL_CTX */
2021 if (!(ssl_ctx = SSL_CTX_new(SSLv23_server_method())))
2022 goto mkcert_error;
2023 if (!SSL_CTX_use_PrivateKey(ssl_ctx, pkey))
2024 goto mkcert_error;
2025 if (!SSL_CTX_use_certificate(ssl_ctx, newcrt))
2026 goto mkcert_error;
2027 if (!SSL_CTX_check_private_key(ssl_ctx))
2028 goto mkcert_error;
2029
Shimi Gersner5846c492020-08-23 13:58:12 +03002030 /* Build chaining the CA cert and the rest of the chain, keep these order */
2031#if defined(SSL_CTX_add1_chain_cert)
2032 if (!SSL_CTX_add1_chain_cert(ssl_ctx, bind_conf->ca_sign_ckch->cert)) {
2033 goto mkcert_error;
2034 }
2035
2036 if (bind_conf->ca_sign_ckch->chain) {
2037 for (i = 0; i < sk_X509_num(bind_conf->ca_sign_ckch->chain); i++) {
2038 X509 *chain_cert = sk_X509_value(bind_conf->ca_sign_ckch->chain, i);
2039 if (!SSL_CTX_add1_chain_cert(ssl_ctx, chain_cert)) {
2040 goto mkcert_error;
2041 }
2042 }
2043 }
2044#endif
2045
Christopher Faulet31af49d2015-06-09 17:29:50 +02002046 if (newcrt) X509_free(newcrt);
Christopher Faulet7969a332015-10-09 11:15:03 +02002047
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002048#ifndef OPENSSL_NO_DH
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002049 SSL_CTX_set_tmp_dh_callback(ssl_ctx, ssl_get_tmp_dh);
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002050#endif
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002051#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
2052 {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002053 const char *ecdhe = (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe : ECDHE_DEFAULT_CURVE);
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002054 EC_KEY *ecc;
2055 int nid;
2056
2057 if ((nid = OBJ_sn2nid(ecdhe)) == NID_undef)
2058 goto end;
2059 if (!(ecc = EC_KEY_new_by_curve_name(nid)))
2060 goto end;
2061 SSL_CTX_set_tmp_ecdh(ssl_ctx, ecc);
2062 EC_KEY_free(ecc);
2063 }
2064#endif
2065 end:
Christopher Faulet31af49d2015-06-09 17:29:50 +02002066 return ssl_ctx;
2067
2068 mkcert_error:
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02002069 if (ctmp) NCONF_free(ctmp);
Emmanuel Hocdet15969292017-08-11 10:56:00 +02002070 if (tmp_ssl) SSL_free(tmp_ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002071 if (ssl_ctx) SSL_CTX_free(ssl_ctx);
2072 if (newcrt) X509_free(newcrt);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002073 return NULL;
2074}
2075
Christopher Faulet7969a332015-10-09 11:15:03 +02002076SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002077ssl_sock_create_cert(struct connection *conn, const char *servername, unsigned int key)
Christopher Faulet7969a332015-10-09 11:15:03 +02002078{
Willy Tarreau07d94e42018-09-20 10:57:52 +02002079 struct bind_conf *bind_conf = __objt_listener(conn->target)->bind_conf;
Olivier Houchard66ab4982019-02-26 18:37:15 +01002080 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002081
Olivier Houchard66ab4982019-02-26 18:37:15 +01002082 return ssl_sock_do_create_cert(servername, bind_conf, ctx->ssl);
Christopher Faulet7969a332015-10-09 11:15:03 +02002083}
2084
Christopher Faulet30548802015-06-11 13:39:32 +02002085/* Do a lookup for a certificate in the LRU cache used to store generated
Emeric Brun821bb9b2017-06-15 16:37:39 +02002086 * certificates and immediately assign it to the SSL session if not null. */
Christopher Faulet30548802015-06-11 13:39:32 +02002087SSL_CTX *
Emeric Brun821bb9b2017-06-15 16:37:39 +02002088ssl_sock_assign_generated_cert(unsigned int key, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet30548802015-06-11 13:39:32 +02002089{
2090 struct lru64 *lru = NULL;
2091
2092 if (ssl_ctx_lru_tree) {
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002093 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002094 lru = lru64_lookup(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002095 if (lru && lru->domain) {
2096 if (ssl)
2097 SSL_set_SSL_CTX(ssl, (SSL_CTX *)lru->data);
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002098 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002099 return (SSL_CTX *)lru->data;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002100 }
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002101 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002102 }
2103 return NULL;
2104}
2105
Emeric Brun821bb9b2017-06-15 16:37:39 +02002106/* Same as <ssl_sock_assign_generated_cert> but without SSL session. This
2107 * function is not thread-safe, it should only be used to check if a certificate
2108 * exists in the lru cache (with no warranty it will not be removed by another
2109 * thread). It is kept for backward compatibility. */
2110SSL_CTX *
2111ssl_sock_get_generated_cert(unsigned int key, struct bind_conf *bind_conf)
2112{
2113 return ssl_sock_assign_generated_cert(key, bind_conf, NULL);
2114}
2115
Christopher Fauletd2cab922015-07-28 16:03:47 +02002116/* Set a certificate int the LRU cache used to store generated
2117 * certificate. Return 0 on success, otherwise -1 */
2118int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002119ssl_sock_set_generated_cert(SSL_CTX *ssl_ctx, unsigned int key, struct bind_conf *bind_conf)
Christopher Faulet30548802015-06-11 13:39:32 +02002120{
2121 struct lru64 *lru = NULL;
2122
2123 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002124 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002125 lru = lru64_get(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002126 if (!lru) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002127 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002128 return -1;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002129 }
Christopher Faulet30548802015-06-11 13:39:32 +02002130 if (lru->domain && lru->data)
2131 lru->free((SSL_CTX *)lru->data);
Shimi Gersner5846c492020-08-23 13:58:12 +03002132 lru64_commit(lru, ssl_ctx, bind_conf->ca_sign_ckch->cert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002133 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002134 return 0;
Christopher Faulet30548802015-06-11 13:39:32 +02002135 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02002136 return -1;
Christopher Faulet30548802015-06-11 13:39:32 +02002137}
2138
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002139/* Compute the key of the certificate. */
Christopher Faulet30548802015-06-11 13:39:32 +02002140unsigned int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002141ssl_sock_generated_cert_key(const void *data, size_t len)
Christopher Faulet30548802015-06-11 13:39:32 +02002142{
2143 return XXH32(data, len, ssl_ctx_lru_seed);
2144}
2145
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002146/* Generate a cert and immediately assign it to the SSL session so that the cert's
2147 * refcount is maintained regardless of the cert's presence in the LRU cache.
2148 */
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002149static int
Christopher Faulet7969a332015-10-09 11:15:03 +02002150ssl_sock_generate_certificate(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02002151{
Shimi Gersner5846c492020-08-23 13:58:12 +03002152 X509 *cacert = bind_conf->ca_sign_ckch->cert;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002153 SSL_CTX *ssl_ctx = NULL;
2154 struct lru64 *lru = NULL;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002155 unsigned int key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002156
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002157 key = ssl_sock_generated_cert_key(servername, strlen(servername));
Christopher Faulet31af49d2015-06-09 17:29:50 +02002158 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002159 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002160 lru = lru64_get(key, ssl_ctx_lru_tree, cacert, 0);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002161 if (lru && lru->domain)
2162 ssl_ctx = (SSL_CTX *)lru->data;
Christopher Fauletd2cab922015-07-28 16:03:47 +02002163 if (!ssl_ctx && lru) {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002164 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002165 lru64_commit(lru, ssl_ctx, cacert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002166 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002167 SSL_set_SSL_CTX(ssl, ssl_ctx);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002168 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002169 return 1;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002170 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002171 else {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002172 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002173 SSL_set_SSL_CTX(ssl, ssl_ctx);
2174 /* No LRU cache, this CTX will be released as soon as the session dies */
2175 SSL_CTX_free(ssl_ctx);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002176 return 1;
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002177 }
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002178 return 0;
2179}
2180static int
2181ssl_sock_generate_certificate_from_conn(struct bind_conf *bind_conf, SSL *ssl)
2182{
2183 unsigned int key;
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002184 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002185
Willy Tarreauf5bdb642019-07-17 11:29:32 +02002186 if (conn_get_dst(conn)) {
Willy Tarreau085a1512019-07-17 14:47:35 +02002187 key = ssl_sock_generated_cert_key(conn->dst, get_addr_len(conn->dst));
Emeric Brun821bb9b2017-06-15 16:37:39 +02002188 if (ssl_sock_assign_generated_cert(key, bind_conf, ssl))
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002189 return 1;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002190 }
2191 return 0;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002192}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002193#endif /* !defined SSL_NO_GENERATE_CERTIFICATES */
Christopher Faulet31af49d2015-06-09 17:29:50 +02002194
Willy Tarreau9a1ab082019-05-09 13:26:41 +02002195#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002196
2197static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002198{
Emmanuel Hocdet23877ab2017-07-12 12:53:02 +02002199#if SSL_OP_NO_SSLv3
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002200 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, SSLv3_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002201 : SSL_CTX_set_ssl_version(ctx, SSLv3_client_method());
2202#endif
2203}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002204static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2205 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002206 : SSL_CTX_set_ssl_version(ctx, TLSv1_client_method());
2207}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002208static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002209#if SSL_OP_NO_TLSv1_1
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002210 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002211 : SSL_CTX_set_ssl_version(ctx, TLSv1_1_client_method());
2212#endif
2213}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002214static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002215#if SSL_OP_NO_TLSv1_2
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002216 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_2_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002217 : SSL_CTX_set_ssl_version(ctx, TLSv1_2_client_method());
2218#endif
2219}
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002220/* TLSv1.2 is the last supported version in this context. */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002221static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {}
2222/* Unusable in this context. */
2223static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {}
2224static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {}
2225static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {}
2226static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {}
2227static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {}
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002228#else /* openssl >= 1.1.0 */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002229
2230static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c) {
2231 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, SSL3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002232 : SSL_CTX_set_min_proto_version(ctx, SSL3_VERSION);
2233}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002234static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {
2235 c == SET_MAX ? SSL_set_max_proto_version(ssl, SSL3_VERSION)
2236 : SSL_set_min_proto_version(ssl, SSL3_VERSION);
2237}
2238static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2239 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002240 : SSL_CTX_set_min_proto_version(ctx, TLS1_VERSION);
2241}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002242static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {
2243 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_VERSION)
2244 : SSL_set_min_proto_version(ssl, TLS1_VERSION);
2245}
2246static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
2247 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002248 : SSL_CTX_set_min_proto_version(ctx, TLS1_1_VERSION);
2249}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002250static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {
2251 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_1_VERSION)
2252 : SSL_set_min_proto_version(ssl, TLS1_1_VERSION);
2253}
2254static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
2255 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002256 : SSL_CTX_set_min_proto_version(ctx, TLS1_2_VERSION);
2257}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002258static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {
2259 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_2_VERSION)
2260 : SSL_set_min_proto_version(ssl, TLS1_2_VERSION);
2261}
2262static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002263#if SSL_OP_NO_TLSv1_3
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002264 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002265 : SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION);
2266#endif
2267}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002268static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {
2269#if SSL_OP_NO_TLSv1_3
2270 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_3_VERSION)
2271 : SSL_set_min_proto_version(ssl, TLS1_3_VERSION);
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002272#endif
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002273}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002274#endif
2275static void ctx_set_None_func(SSL_CTX *ctx, set_context_func c) { }
2276static void ssl_set_None_func(SSL *ssl, set_context_func c) { }
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002277
William Lallemand7fd8b452020-05-07 15:20:43 +02002278struct methodVersions methodVersions[] = {
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002279 {0, 0, ctx_set_None_func, ssl_set_None_func, "NONE"}, /* CONF_TLSV_NONE */
2280 {SSL_OP_NO_SSLv3, MC_SSL_O_NO_SSLV3, ctx_set_SSLv3_func, ssl_set_SSLv3_func, "SSLv3"}, /* CONF_SSLV3 */
2281 {SSL_OP_NO_TLSv1, MC_SSL_O_NO_TLSV10, ctx_set_TLSv10_func, ssl_set_TLSv10_func, "TLSv1.0"}, /* CONF_TLSV10 */
2282 {SSL_OP_NO_TLSv1_1, MC_SSL_O_NO_TLSV11, ctx_set_TLSv11_func, ssl_set_TLSv11_func, "TLSv1.1"}, /* CONF_TLSV11 */
2283 {SSL_OP_NO_TLSv1_2, MC_SSL_O_NO_TLSV12, ctx_set_TLSv12_func, ssl_set_TLSv12_func, "TLSv1.2"}, /* CONF_TLSV12 */
2284 {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 +02002285};
2286
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002287static void ssl_sock_switchctx_set(SSL *ssl, SSL_CTX *ctx)
2288{
2289 SSL_set_verify(ssl, SSL_CTX_get_verify_mode(ctx), ssl_sock_bind_verifycbk);
2290 SSL_set_client_CA_list(ssl, SSL_dup_CA_list(SSL_CTX_get_client_CA_list(ctx)));
2291 SSL_set_SSL_CTX(ssl, ctx);
2292}
2293
Ilya Shipitsin1fc44d42021-01-23 00:09:14 +05002294#ifdef HAVE_SSL_CLIENT_HELLO_CB
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002295
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002296int ssl_sock_switchctx_err_cbk(SSL *ssl, int *al, void *priv)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002297{
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002298 struct bind_conf *s = priv;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002299 (void)al; /* shut gcc stupid warning */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002300
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002301 if (SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name) || s->generate_certs)
2302 return SSL_TLSEXT_ERR_OK;
2303 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002304}
2305
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002306#ifdef OPENSSL_IS_BORINGSSL
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002307int ssl_sock_switchctx_cbk(const struct ssl_early_callback_ctx *ctx)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002308{
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002309 SSL *ssl = ctx->ssl;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002310#else
Frédéric Lécaille901ee2f2020-11-23 11:19:04 +01002311int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *arg)
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002312{
2313#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002314 struct connection *conn;
2315 struct bind_conf *s;
2316 const uint8_t *extension_data;
2317 size_t extension_len;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002318 int has_rsa_sig = 0, has_ecdsa_sig = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002319
2320 char *wildp = NULL;
2321 const uint8_t *servername;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002322 size_t servername_len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002323 struct ebmb_node *node, *n, *node_ecdsa = NULL, *node_rsa = NULL, *node_anonymous = NULL;
Olivier Houchardc2aae742017-09-22 18:26:28 +02002324 int allow_early = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002325 int i;
2326
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002327 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Willy Tarreaua8825522018-10-15 13:20:07 +02002328 s = __objt_listener(conn->target)->bind_conf;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002329
Frédéric Lécaillee9473c72020-11-23 15:37:11 +01002330#ifdef USE_QUIC
2331 if (conn->qc) {
2332 /* Look for the QUIC transport parameters. */
2333#ifdef OPENSSL_IS_BORINGSSL
2334 if (!SSL_early_callback_ctx_extension_get(ctx, TLS_EXTENSION_QUIC_TRANSPORT_PARAMETERS,
2335 &extension_data, &extension_len))
2336#else
2337 if (!SSL_client_hello_get0_ext(ssl, TLS_EXTENSION_QUIC_TRANSPORT_PARAMETERS,
2338 &extension_data, &extension_len))
2339#endif
2340 goto abort;
2341
2342 if (!quic_transport_params_store(conn->qc, 0, extension_data,
2343 extension_data + extension_len))
2344 goto abort;
2345 }
2346#endif
2347
Olivier Houchard9679ac92017-10-27 14:58:08 +02002348 if (s->ssl_conf.early_data)
Olivier Houchardc2aae742017-09-22 18:26:28 +02002349 allow_early = 1;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002350#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002351 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_server_name,
2352 &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002353#else
2354 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_server_name, &extension_data, &extension_len)) {
2355#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002356 /*
2357 * The server_name extension was given too much extensibility when it
2358 * was written, so parsing the normal case is a bit complex.
2359 */
2360 size_t len;
2361 if (extension_len <= 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002362 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002363 /* Extract the length of the supplied list of names. */
2364 len = (*extension_data++) << 8;
2365 len |= *extension_data++;
2366 if (len + 2 != extension_len)
2367 goto abort;
2368 /*
2369 * The list in practice only has a single element, so we only consider
2370 * the first one.
2371 */
2372 if (len == 0 || *extension_data++ != TLSEXT_NAMETYPE_host_name)
2373 goto abort;
2374 extension_len = len - 1;
2375 /* Now we can finally pull out the byte array with the actual hostname. */
2376 if (extension_len <= 2)
2377 goto abort;
2378 len = (*extension_data++) << 8;
2379 len |= *extension_data++;
2380 if (len == 0 || len + 2 > extension_len || len > TLSEXT_MAXLEN_host_name
2381 || memchr(extension_data, 0, len) != NULL)
2382 goto abort;
2383 servername = extension_data;
2384 servername_len = len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002385 } else {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002386#if (!defined SSL_NO_GENERATE_CERTIFICATES)
2387 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02002388 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002389 }
2390#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002391 /* without SNI extension, is the default_ctx (need SSL_TLSEXT_ERR_NOACK) */
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002392 if (!s->strict_sni) {
William Lallemand21724f02019-11-04 17:56:13 +01002393 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002394 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002395 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Olivier Houchardc2aae742017-09-22 18:26:28 +02002396 goto allow_early;
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002397 }
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002398 goto abort;
2399 }
2400
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05002401 /* extract/check clientHello information */
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002402#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002403 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002404#else
2405 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
2406#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002407 uint8_t sign;
2408 size_t len;
2409 if (extension_len < 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002410 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002411 len = (*extension_data++) << 8;
2412 len |= *extension_data++;
2413 if (len + 2 != extension_len)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002414 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002415 if (len % 2 != 0)
2416 goto abort;
2417 for (; len > 0; len -= 2) {
2418 extension_data++; /* hash */
2419 sign = *extension_data++;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002420 switch (sign) {
2421 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002422 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002423 break;
2424 case TLSEXT_signature_ecdsa:
2425 has_ecdsa_sig = 1;
2426 break;
2427 default:
2428 continue;
2429 }
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002430 if (has_ecdsa_sig && has_rsa_sig)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002431 break;
2432 }
2433 } else {
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002434 /* without TLSEXT_TYPE_signature_algorithms extension (< TLSv1.2) */
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002435 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002436 }
2437 if (has_ecdsa_sig) { /* in very rare case: has ecdsa sign but not a ECDSA cipher */
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002438 const SSL_CIPHER *cipher;
2439 size_t len;
2440 const uint8_t *cipher_suites;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002441 has_ecdsa_sig = 0;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002442#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002443 len = ctx->cipher_suites_len;
2444 cipher_suites = ctx->cipher_suites;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002445#else
2446 len = SSL_client_hello_get0_ciphers(ssl, &cipher_suites);
2447#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002448 if (len % 2 != 0)
2449 goto abort;
2450 for (; len != 0; len -= 2, cipher_suites += 2) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002451#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002452 uint16_t cipher_suite = (cipher_suites[0] << 8) | cipher_suites[1];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002453 cipher = SSL_get_cipher_by_value(cipher_suite);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002454#else
2455 cipher = SSL_CIPHER_find(ssl, cipher_suites);
2456#endif
Emmanuel Hocdet019f9b12017-10-02 17:12:06 +02002457 if (cipher && SSL_CIPHER_get_auth_nid(cipher) == NID_auth_ecdsa) {
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002458 has_ecdsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002459 break;
2460 }
2461 }
2462 }
2463
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002464 for (i = 0; i < trash.size && i < servername_len; i++) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002465 trash.area[i] = tolower(servername[i]);
2466 if (!wildp && (trash.area[i] == '.'))
2467 wildp = &trash.area[i];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002468 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002469 trash.area[i] = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002470
William Lallemand150bfa82019-09-19 17:12:49 +02002471 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002472
William Lallemand94bd3192020-08-14 14:43:35 +02002473 /* Look for an ECDSA, RSA and DSA certificate, first in the single
2474 * name and if not found in the wildcard */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002475 for (i = 0; i < 2; i++) {
2476 if (i == 0) /* lookup in full qualified names */
2477 node = ebst_lookup(&s->sni_ctx, trash.area);
William Lallemand30f9e092020-08-17 14:31:19 +02002478 else if (i == 1 && wildp) /* lookup in wildcards names */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002479 node = ebst_lookup(&s->sni_w_ctx, wildp);
2480 else
2481 break;
William Lallemand30f9e092020-08-17 14:31:19 +02002482
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002483 for (n = node; n; n = ebmb_next_dup(n)) {
William Lallemand30f9e092020-08-17 14:31:19 +02002484
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002485 /* lookup a not neg filter */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002486 if (!container_of(n, struct sni_ctx, name)->neg) {
William Lallemand30f9e092020-08-17 14:31:19 +02002487 struct sni_ctx *sni, *sni_tmp;
2488 int skip = 0;
2489
2490 if (i == 1 && wildp) { /* wildcard */
2491 /* If this is a wildcard, look for an exclusion on the same crt-list line */
2492 sni = container_of(n, struct sni_ctx, name);
2493 list_for_each_entry(sni_tmp, &sni->ckch_inst->sni_ctx, by_ckch_inst) {
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01002494 if (sni_tmp->neg && (strcmp((const char *)sni_tmp->name.key, trash.area) == 0)) {
William Lallemand30f9e092020-08-17 14:31:19 +02002495 skip = 1;
2496 break;
2497 }
2498 }
2499 if (skip)
2500 continue;
2501 }
2502
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002503 switch(container_of(n, struct sni_ctx, name)->kinfo.sig) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002504 case TLSEXT_signature_ecdsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002505 if (!node_ecdsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002506 node_ecdsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002507 break;
2508 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002509 if (!node_rsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002510 node_rsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002511 break;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002512 default: /* TLSEXT_signature_anonymous|dsa */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002513 if (!node_anonymous)
2514 node_anonymous = n;
2515 break;
2516 }
2517 }
2518 }
William Lallemand94bd3192020-08-14 14:43:35 +02002519 }
2520 /* Once the certificates are found, select them depending on what is
2521 * supported in the client and by key_signature priority order: EDSA >
2522 * RSA > DSA */
William Lallemand5b1d1f62020-08-14 15:30:13 +02002523 if (has_ecdsa_sig && node_ecdsa)
2524 node = node_ecdsa;
2525 else if (has_rsa_sig && node_rsa)
2526 node = node_rsa;
2527 else if (node_anonymous)
2528 node = node_anonymous;
2529 else if (node_ecdsa)
2530 node = node_ecdsa; /* no ecdsa signature case (< TLSv1.2) */
2531 else
2532 node = node_rsa; /* no rsa signature case (far far away) */
2533
William Lallemand94bd3192020-08-14 14:43:35 +02002534 if (node) {
2535 /* switch ctx */
2536 struct ssl_bind_conf *conf = container_of(node, struct sni_ctx, name)->conf;
2537 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
2538 if (conf) {
2539 methodVersions[conf->ssl_methods.min].ssl_set_version(ssl, SET_MIN);
2540 methodVersions[conf->ssl_methods.max].ssl_set_version(ssl, SET_MAX);
2541 if (conf->early_data)
2542 allow_early = 1;
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002543 }
William Lallemand94bd3192020-08-14 14:43:35 +02002544 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
2545 goto allow_early;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002546 }
William Lallemand150bfa82019-09-19 17:12:49 +02002547
William Lallemand02010472019-10-18 11:02:19 +02002548 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002549#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002550 if (s->generate_certs && ssl_sock_generate_certificate(trash.area, s, ssl)) {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002551 /* switch ctx done in ssl_sock_generate_certificate */
Olivier Houchardc2aae742017-09-22 18:26:28 +02002552 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002553 }
2554#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002555 if (!s->strict_sni) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002556 /* no certificate match, is the default_ctx */
William Lallemand21724f02019-11-04 17:56:13 +01002557 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002558 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002559 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002560 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02002561allow_early:
2562#ifdef OPENSSL_IS_BORINGSSL
2563 if (allow_early)
2564 SSL_set_early_data_enabled(ssl, 1);
2565#else
2566 if (!allow_early)
2567 SSL_set_max_early_data(ssl, 0);
2568#endif
2569 return 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002570 abort:
2571 /* abort handshake (was SSL_TLSEXT_ERR_ALERT_FATAL) */
2572 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002573#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002574 return ssl_select_cert_error;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002575#else
2576 *al = SSL_AD_UNRECOGNIZED_NAME;
2577 return 0;
2578#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002579}
2580
2581#else /* OPENSSL_IS_BORINGSSL */
2582
Emeric Brunfc0421f2012-09-07 17:30:07 +02002583/* Sets the SSL ctx of <ssl> to match the advertised server name. Returns a
2584 * warning when no match is found, which implies the default (first) cert
2585 * will keep being used.
2586 */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002587static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *priv)
Emeric Brunfc0421f2012-09-07 17:30:07 +02002588{
2589 const char *servername;
2590 const char *wildp = NULL;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002591 struct ebmb_node *node, *n;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002592 struct bind_conf *s = priv;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002593 int i;
2594 (void)al; /* shut gcc stupid warning */
2595
2596 servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002597 if (!servername) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002598#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002599 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl))
2600 return SSL_TLSEXT_ERR_OK;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002601#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002602 if (s->strict_sni)
2603 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002604 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002605 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002606 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002607 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002608 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02002609
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002610 for (i = 0; i < trash.size; i++) {
Emeric Brunfc0421f2012-09-07 17:30:07 +02002611 if (!servername[i])
2612 break;
Willy Tarreauf278eec2020-07-05 21:46:32 +02002613 trash.area[i] = tolower((unsigned char)servername[i]);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002614 if (!wildp && (trash.area[i] == '.'))
2615 wildp = &trash.area[i];
Emeric Brunfc0421f2012-09-07 17:30:07 +02002616 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002617 trash.area[i] = 0;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002618
William Lallemand150bfa82019-09-19 17:12:49 +02002619 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002620 node = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002621 /* lookup in full qualified names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002622 for (n = ebst_lookup(&s->sni_ctx, trash.area); n; n = ebmb_next_dup(n)) {
2623 /* lookup a not neg filter */
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002624 if (!container_of(n, struct sni_ctx, name)->neg) {
2625 node = n;
2626 break;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002627 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002628 }
2629 if (!node && wildp) {
2630 /* lookup in wildcards names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002631 for (n = ebst_lookup(&s->sni_w_ctx, wildp); n; n = ebmb_next_dup(n)) {
2632 /* lookup a not neg filter */
2633 if (!container_of(n, struct sni_ctx, name)->neg) {
2634 node = n;
2635 break;
2636 }
2637 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002638 }
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002639 if (!node) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002640#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002641 if (s->generate_certs && ssl_sock_generate_certificate(servername, s, ssl)) {
2642 /* switch ctx done in ssl_sock_generate_certificate */
William Lallemand150bfa82019-09-19 17:12:49 +02002643 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002644 return SSL_TLSEXT_ERR_OK;
2645 }
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002646#endif
William Lallemand21724f02019-11-04 17:56:13 +01002647 if (s->strict_sni) {
2648 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002649 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002650 }
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002651 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002652 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002653 return SSL_TLSEXT_ERR_OK;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002654 }
2655
2656 /* switch ctx */
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002657 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
William Lallemand150bfa82019-09-19 17:12:49 +02002658 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emeric Brunfc0421f2012-09-07 17:30:07 +02002659 return SSL_TLSEXT_ERR_OK;
2660}
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002661#endif /* (!) OPENSSL_IS_BORINGSSL */
Emeric Brunfc0421f2012-09-07 17:30:07 +02002662#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
2663
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002664#ifndef OPENSSL_NO_DH
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002665
2666static DH * ssl_get_dh_1024(void)
2667{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002668 static unsigned char dh1024_p[]={
2669 0xFA,0xF9,0x2A,0x22,0x2A,0xA7,0x7F,0xE1,0x67,0x4E,0x53,0xF7,
2670 0x56,0x13,0xC3,0xB1,0xE3,0x29,0x6B,0x66,0x31,0x6A,0x7F,0xB3,
2671 0xC2,0x68,0x6B,0xCB,0x1D,0x57,0x39,0x1D,0x1F,0xFF,0x1C,0xC9,
2672 0xA6,0xA4,0x98,0x82,0x31,0x5D,0x25,0xFF,0x8A,0xE0,0x73,0x96,
2673 0x81,0xC8,0x83,0x79,0xC1,0x5A,0x04,0xF8,0x37,0x0D,0xA8,0x3D,
2674 0xAE,0x74,0xBC,0xDB,0xB6,0xA4,0x75,0xD9,0x71,0x8A,0xA0,0x17,
2675 0x9E,0x2D,0xC8,0xA8,0xDF,0x2C,0x5F,0x82,0x95,0xF8,0x92,0x9B,
2676 0xA7,0x33,0x5F,0x89,0x71,0xC8,0x2D,0x6B,0x18,0x86,0xC4,0x94,
2677 0x22,0xA5,0x52,0x8D,0xF6,0xF6,0xD2,0x37,0x92,0x0F,0xA5,0xCC,
2678 0xDB,0x7B,0x1D,0x3D,0xA1,0x31,0xB7,0x80,0x8F,0x0B,0x67,0x5E,
2679 0x36,0xA5,0x60,0x0C,0xF1,0x95,0x33,0x8B,
2680 };
2681 static unsigned char dh1024_g[]={
2682 0x02,
2683 };
2684
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002685 BIGNUM *p;
2686 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002687 DH *dh = DH_new();
2688 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002689 p = BN_bin2bn(dh1024_p, sizeof dh1024_p, NULL);
2690 g = BN_bin2bn(dh1024_g, sizeof dh1024_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002691
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002692 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002693 DH_free(dh);
2694 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002695 } else {
2696 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002697 }
2698 }
2699 return dh;
2700}
2701
2702static DH *ssl_get_dh_2048(void)
2703{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002704 static unsigned char dh2048_p[]={
2705 0xEC,0x86,0xF8,0x70,0xA0,0x33,0x16,0xEC,0x05,0x1A,0x73,0x59,
2706 0xCD,0x1F,0x8B,0xF8,0x29,0xE4,0xD2,0xCF,0x52,0xDD,0xC2,0x24,
2707 0x8D,0xB5,0x38,0x9A,0xFB,0x5C,0xA4,0xE4,0xB2,0xDA,0xCE,0x66,
2708 0x50,0x74,0xA6,0x85,0x4D,0x4B,0x1D,0x30,0xB8,0x2B,0xF3,0x10,
2709 0xE9,0xA7,0x2D,0x05,0x71,0xE7,0x81,0xDF,0x8B,0x59,0x52,0x3B,
2710 0x5F,0x43,0x0B,0x68,0xF1,0xDB,0x07,0xBE,0x08,0x6B,0x1B,0x23,
2711 0xEE,0x4D,0xCC,0x9E,0x0E,0x43,0xA0,0x1E,0xDF,0x43,0x8C,0xEC,
2712 0xBE,0xBE,0x90,0xB4,0x51,0x54,0xB9,0x2F,0x7B,0x64,0x76,0x4E,
2713 0x5D,0xD4,0x2E,0xAE,0xC2,0x9E,0xAE,0x51,0x43,0x59,0xC7,0x77,
2714 0x9C,0x50,0x3C,0x0E,0xED,0x73,0x04,0x5F,0xF1,0x4C,0x76,0x2A,
2715 0xD8,0xF8,0xCF,0xFC,0x34,0x40,0xD1,0xB4,0x42,0x61,0x84,0x66,
2716 0x42,0x39,0x04,0xF8,0x68,0xB2,0x62,0xD7,0x55,0xED,0x1B,0x74,
2717 0x75,0x91,0xE0,0xC5,0x69,0xC1,0x31,0x5C,0xDB,0x7B,0x44,0x2E,
2718 0xCE,0x84,0x58,0x0D,0x1E,0x66,0x0C,0xC8,0x44,0x9E,0xFD,0x40,
2719 0x08,0x67,0x5D,0xFB,0xA7,0x76,0x8F,0x00,0x11,0x87,0xE9,0x93,
2720 0xF9,0x7D,0xC4,0xBC,0x74,0x55,0x20,0xD4,0x4A,0x41,0x2F,0x43,
2721 0x42,0x1A,0xC1,0xF2,0x97,0x17,0x49,0x27,0x37,0x6B,0x2F,0x88,
2722 0x7E,0x1C,0xA0,0xA1,0x89,0x92,0x27,0xD9,0x56,0x5A,0x71,0xC1,
2723 0x56,0x37,0x7E,0x3A,0x9D,0x05,0xE7,0xEE,0x5D,0x8F,0x82,0x17,
2724 0xBC,0xE9,0xC2,0x93,0x30,0x82,0xF9,0xF4,0xC9,0xAE,0x49,0xDB,
2725 0xD0,0x54,0xB4,0xD9,0x75,0x4D,0xFA,0x06,0xB8,0xD6,0x38,0x41,
2726 0xB7,0x1F,0x77,0xF3,
2727 };
2728 static unsigned char dh2048_g[]={
2729 0x02,
2730 };
2731
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002732 BIGNUM *p;
2733 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002734 DH *dh = DH_new();
2735 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002736 p = BN_bin2bn(dh2048_p, sizeof dh2048_p, NULL);
2737 g = BN_bin2bn(dh2048_g, sizeof dh2048_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002738
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002739 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002740 DH_free(dh);
2741 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002742 } else {
2743 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002744 }
2745 }
2746 return dh;
2747}
2748
2749static DH *ssl_get_dh_4096(void)
2750{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002751 static unsigned char dh4096_p[]={
2752 0xDE,0x16,0x94,0xCD,0x99,0x58,0x07,0xF1,0xF7,0x32,0x96,0x11,
2753 0x04,0x82,0xD4,0x84,0x72,0x80,0x99,0x06,0xCA,0xF0,0xA3,0x68,
2754 0x07,0xCE,0x64,0x50,0xE7,0x74,0x45,0x20,0x80,0x5E,0x4D,0xAD,
2755 0xA5,0xB6,0xED,0xFA,0x80,0x6C,0x3B,0x35,0xC4,0x9A,0x14,0x6B,
2756 0x32,0xBB,0xFD,0x1F,0x17,0x8E,0xB7,0x1F,0xD6,0xFA,0x3F,0x7B,
2757 0xEE,0x16,0xA5,0x62,0x33,0x0D,0xED,0xBC,0x4E,0x58,0xE5,0x47,
2758 0x4D,0xE9,0xAB,0x8E,0x38,0xD3,0x6E,0x90,0x57,0xE3,0x22,0x15,
2759 0x33,0xBD,0xF6,0x43,0x45,0xB5,0x10,0x0A,0xBE,0x2C,0xB4,0x35,
2760 0xB8,0x53,0x8D,0xAD,0xFB,0xA7,0x1F,0x85,0x58,0x41,0x7A,0x79,
2761 0x20,0x68,0xB3,0xE1,0x3D,0x08,0x76,0xBF,0x86,0x0D,0x49,0xE3,
2762 0x82,0x71,0x8C,0xB4,0x8D,0x81,0x84,0xD4,0xE7,0xBE,0x91,0xDC,
2763 0x26,0x39,0x48,0x0F,0x35,0xC4,0xCA,0x65,0xE3,0x40,0x93,0x52,
2764 0x76,0x58,0x7D,0xDD,0x51,0x75,0xDC,0x69,0x61,0xBF,0x47,0x2C,
2765 0x16,0x68,0x2D,0xC9,0x29,0xD3,0xE6,0xC0,0x99,0x48,0xA0,0x9A,
2766 0xC8,0x78,0xC0,0x6D,0x81,0x67,0x12,0x61,0x3F,0x71,0xBA,0x41,
2767 0x1F,0x6C,0x89,0x44,0x03,0xBA,0x3B,0x39,0x60,0xAA,0x28,0x55,
2768 0x59,0xAE,0xB8,0xFA,0xCB,0x6F,0xA5,0x1A,0xF7,0x2B,0xDD,0x52,
2769 0x8A,0x8B,0xE2,0x71,0xA6,0x5E,0x7E,0xD8,0x2E,0x18,0xE0,0x66,
2770 0xDF,0xDD,0x22,0x21,0x99,0x52,0x73,0xA6,0x33,0x20,0x65,0x0E,
2771 0x53,0xE7,0x6B,0x9B,0xC5,0xA3,0x2F,0x97,0x65,0x76,0xD3,0x47,
2772 0x23,0x77,0x12,0xB6,0x11,0x7B,0x24,0xED,0xF1,0xEF,0xC0,0xE2,
2773 0xA3,0x7E,0x67,0x05,0x3E,0x96,0x4D,0x45,0xC2,0x18,0xD1,0x73,
2774 0x9E,0x07,0xF3,0x81,0x6E,0x52,0x63,0xF6,0x20,0x76,0xB9,0x13,
2775 0xD2,0x65,0x30,0x18,0x16,0x09,0x16,0x9E,0x8F,0xF1,0xD2,0x10,
2776 0x5A,0xD3,0xD4,0xAF,0x16,0x61,0xDA,0x55,0x2E,0x18,0x5E,0x14,
2777 0x08,0x54,0x2E,0x2A,0x25,0xA2,0x1A,0x9B,0x8B,0x32,0xA9,0xFD,
2778 0xC2,0x48,0x96,0xE1,0x80,0xCA,0xE9,0x22,0x17,0xBB,0xCE,0x3E,
2779 0x9E,0xED,0xC7,0xF1,0x1F,0xEC,0x17,0x21,0xDC,0x7B,0x82,0x48,
2780 0x8E,0xBB,0x4B,0x9D,0x5B,0x04,0x04,0xDA,0xDB,0x39,0xDF,0x01,
2781 0x40,0xC3,0xAA,0x26,0x23,0x89,0x75,0xC6,0x0B,0xD0,0xA2,0x60,
2782 0x6A,0xF1,0xCC,0x65,0x18,0x98,0x1B,0x52,0xD2,0x74,0x61,0xCC,
2783 0xBD,0x60,0xAE,0xA3,0xA0,0x66,0x6A,0x16,0x34,0x92,0x3F,0x41,
2784 0x40,0x31,0x29,0xC0,0x2C,0x63,0xB2,0x07,0x8D,0xEB,0x94,0xB8,
2785 0xE8,0x47,0x92,0x52,0x93,0x6A,0x1B,0x7E,0x1A,0x61,0xB3,0x1B,
2786 0xF0,0xD6,0x72,0x9B,0xF1,0xB0,0xAF,0xBF,0x3E,0x65,0xEF,0x23,
2787 0x1D,0x6F,0xFF,0x70,0xCD,0x8A,0x4C,0x8A,0xA0,0x72,0x9D,0xBE,
2788 0xD4,0xBB,0x24,0x47,0x4A,0x68,0xB5,0xF5,0xC6,0xD5,0x7A,0xCD,
2789 0xCA,0x06,0x41,0x07,0xAD,0xC2,0x1E,0xE6,0x54,0xA7,0xAD,0x03,
2790 0xD9,0x12,0xC1,0x9C,0x13,0xB1,0xC9,0x0A,0x43,0x8E,0x1E,0x08,
2791 0xCE,0x50,0x82,0x73,0x5F,0xA7,0x55,0x1D,0xD9,0x59,0xAC,0xB5,
2792 0xEA,0x02,0x7F,0x6C,0x5B,0x74,0x96,0x98,0x67,0x24,0xA3,0x0F,
2793 0x15,0xFC,0xA9,0x7D,0x3E,0x67,0xD1,0x70,0xF8,0x97,0xF3,0x67,
2794 0xC5,0x8C,0x88,0x44,0x08,0x02,0xC7,0x2B,
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002795 };
Remi Gacogned3a341a2015-05-29 16:26:17 +02002796 static unsigned char dh4096_g[]={
2797 0x02,
2798 };
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002799
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002800 BIGNUM *p;
2801 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002802 DH *dh = DH_new();
2803 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002804 p = BN_bin2bn(dh4096_p, sizeof dh4096_p, NULL);
2805 g = BN_bin2bn(dh4096_g, sizeof dh4096_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002806
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002807 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002808 DH_free(dh);
2809 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002810 } else {
2811 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002812 }
2813 }
2814 return dh;
2815}
2816
2817/* Returns Diffie-Hellman parameters matching the private key length
Willy Tarreauef934602016-12-22 23:12:01 +01002818 but not exceeding global_ssl.default_dh_param */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002819static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen)
2820{
2821 DH *dh = NULL;
2822 EVP_PKEY *pkey = SSL_get_privatekey(ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002823 int type;
2824
2825 type = pkey ? EVP_PKEY_base_id(pkey) : EVP_PKEY_NONE;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002826
2827 /* The keylen supplied by OpenSSL can only be 512 or 1024.
2828 See ssl3_send_server_key_exchange() in ssl/s3_srvr.c
2829 */
2830 if (type == EVP_PKEY_RSA || type == EVP_PKEY_DSA) {
2831 keylen = EVP_PKEY_bits(pkey);
2832 }
2833
Willy Tarreauef934602016-12-22 23:12:01 +01002834 if (keylen > global_ssl.default_dh_param) {
2835 keylen = global_ssl.default_dh_param;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002836 }
2837
Remi Gacogned3a341a2015-05-29 16:26:17 +02002838 if (keylen >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002839 dh = local_dh_4096;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002840 }
2841 else if (keylen >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002842 dh = local_dh_2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002843 }
2844 else {
Remi Gacogne8de54152014-07-15 11:36:40 +02002845 dh = local_dh_1024;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002846 }
2847
2848 return dh;
2849}
2850
Remi Gacogne47783ef2015-05-29 15:53:22 +02002851static DH * ssl_sock_get_dh_from_file(const char *filename)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002852{
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002853 DH *dh = NULL;
Remi Gacogne47783ef2015-05-29 15:53:22 +02002854 BIO *in = BIO_new(BIO_s_file());
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002855
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002856 if (in == NULL)
2857 goto end;
2858
Remi Gacogne47783ef2015-05-29 15:53:22 +02002859 if (BIO_read_filename(in, filename) <= 0)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002860 goto end;
2861
Remi Gacogne47783ef2015-05-29 15:53:22 +02002862 dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
2863
2864end:
2865 if (in)
2866 BIO_free(in);
2867
Emeric Brune1b4ed42018-08-16 15:14:12 +02002868 ERR_clear_error();
2869
Remi Gacogne47783ef2015-05-29 15:53:22 +02002870 return dh;
2871}
2872
2873int ssl_sock_load_global_dh_param_from_file(const char *filename)
2874{
2875 global_dh = ssl_sock_get_dh_from_file(filename);
2876
2877 if (global_dh) {
2878 return 0;
2879 }
2880
2881 return -1;
2882}
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002883#endif
2884
William Lallemand9117de92019-10-04 00:29:42 +02002885/* This function allocates a sni_ctx and adds it to the ckch_inst */
William Lallemand1d29c742019-10-04 00:53:29 +02002886static int ckch_inst_add_cert_sni(SSL_CTX *ctx, struct ckch_inst *ckch_inst,
William Lallemand9117de92019-10-04 00:29:42 +02002887 struct bind_conf *s, struct ssl_bind_conf *conf,
2888 struct pkey_info kinfo, char *name, int order)
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002889{
2890 struct sni_ctx *sc;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002891 int wild = 0, neg = 0;
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002892
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002893 if (*name == '!') {
2894 neg = 1;
2895 name++;
2896 }
2897 if (*name == '*') {
2898 wild = 1;
2899 name++;
2900 }
2901 /* !* filter is a nop */
2902 if (neg && wild)
2903 return order;
2904 if (*name) {
2905 int j, len;
2906 len = strlen(name);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002907 for (j = 0; j < len && j < trash.size; j++)
Willy Tarreauf278eec2020-07-05 21:46:32 +02002908 trash.area[j] = tolower((unsigned char)name[j]);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002909 if (j >= trash.size)
William Lallemandfe49bb32019-10-03 23:46:33 +02002910 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002911 trash.area[j] = 0;
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002912
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002913 sc = malloc(sizeof(struct sni_ctx) + len + 1);
Thierry FOURNIER / OZON.IO7a3bd3b2016-10-06 10:35:29 +02002914 if (!sc)
William Lallemandfe49bb32019-10-03 23:46:33 +02002915 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002916 memcpy(sc->name.key, trash.area, len + 1);
William Lallemand02e19a52020-04-08 16:11:26 +02002917 SSL_CTX_up_ref(ctx);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002918 sc->ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002919 sc->conf = conf;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002920 sc->kinfo = kinfo;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002921 sc->order = order++;
2922 sc->neg = neg;
William Lallemand1d29c742019-10-04 00:53:29 +02002923 sc->wild = wild;
2924 sc->name.node.leaf_p = NULL;
William Lallemandcfca1422020-03-05 10:17:47 +01002925 sc->ckch_inst = ckch_inst;
William Lallemand1d29c742019-10-04 00:53:29 +02002926 LIST_ADDQ(&ckch_inst->sni_ctx, &sc->by_ckch_inst);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002927 }
2928 return order;
2929}
2930
William Lallemand6af03992019-07-23 15:00:54 +02002931/*
William Lallemand1d29c742019-10-04 00:53:29 +02002932 * Insert the sni_ctxs that are listed in the ckch_inst, in the bind_conf's sni_ctx tree
2933 * This function can't return an error.
2934 *
2935 * *CAUTION*: The caller must lock the sni tree if called in multithreading mode
2936 */
William Lallemandc756bbd2020-05-13 17:23:59 +02002937void ssl_sock_load_cert_sni(struct ckch_inst *ckch_inst, struct bind_conf *bind_conf)
William Lallemand1d29c742019-10-04 00:53:29 +02002938{
2939
2940 struct sni_ctx *sc0, *sc0b, *sc1;
2941 struct ebmb_node *node;
William Lallemand21724f02019-11-04 17:56:13 +01002942 int def = 0;
William Lallemand1d29c742019-10-04 00:53:29 +02002943
2944 list_for_each_entry_safe(sc0, sc0b, &ckch_inst->sni_ctx, by_ckch_inst) {
2945
2946 /* ignore if sc0 was already inserted in a tree */
2947 if (sc0->name.node.leaf_p)
2948 continue;
2949
2950 /* Check for duplicates. */
2951 if (sc0->wild)
2952 node = ebst_lookup(&bind_conf->sni_w_ctx, (char *)sc0->name.key);
2953 else
2954 node = ebst_lookup(&bind_conf->sni_ctx, (char *)sc0->name.key);
2955
2956 for (; node; node = ebmb_next_dup(node)) {
2957 sc1 = ebmb_entry(node, struct sni_ctx, name);
2958 if (sc1->ctx == sc0->ctx && sc1->conf == sc0->conf
2959 && sc1->neg == sc0->neg && sc1->wild == sc0->wild) {
2960 /* it's a duplicate, we should remove and free it */
2961 LIST_DEL(&sc0->by_ckch_inst);
William Lallemand02e19a52020-04-08 16:11:26 +02002962 SSL_CTX_free(sc0->ctx);
William Lallemand1d29c742019-10-04 00:53:29 +02002963 free(sc0);
2964 sc0 = NULL;
William Lallemande15029b2019-10-14 10:46:58 +02002965 break;
William Lallemand1d29c742019-10-04 00:53:29 +02002966 }
2967 }
2968
2969 /* if duplicate, ignore the insertion */
2970 if (!sc0)
2971 continue;
2972
2973 if (sc0->wild)
2974 ebst_insert(&bind_conf->sni_w_ctx, &sc0->name);
2975 else
2976 ebst_insert(&bind_conf->sni_ctx, &sc0->name);
William Lallemand21724f02019-11-04 17:56:13 +01002977
2978 /* replace the default_ctx if required with the first ctx */
2979 if (ckch_inst->is_default && !def) {
William Lallemand02e19a52020-04-08 16:11:26 +02002980 SSL_CTX_free(bind_conf->default_ctx);
2981 SSL_CTX_up_ref(sc0->ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002982 bind_conf->default_ctx = sc0->ctx;
2983 def = 1;
2984 }
William Lallemand1d29c742019-10-04 00:53:29 +02002985 }
2986}
2987
2988/*
William Lallemande3af8fb2019-10-08 11:36:53 +02002989 * tree used to store the ckchs ordered by filename/bundle name
William Lallemand6af03992019-07-23 15:00:54 +02002990 */
William Lallemande3af8fb2019-10-08 11:36:53 +02002991struct eb_root ckchs_tree = EB_ROOT_UNIQUE;
William Lallemand6af03992019-07-23 15:00:54 +02002992
William Lallemand2954c472020-03-06 21:54:13 +01002993/* tree of crtlist (crt-list/directory) */
William Lallemandc756bbd2020-05-13 17:23:59 +02002994struct eb_root crtlists_tree = EB_ROOT_UNIQUE;
William Lallemandfa892222019-07-23 16:06:08 +02002995
Emeric Brun7a883362019-10-17 13:27:40 +02002996/* Loads Diffie-Hellman parameter from a ckchs to an SSL_CTX.
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05002997 * If there is no DH parameter available in the ckchs, the global
Emeric Brun7a883362019-10-17 13:27:40 +02002998 * DH parameter is loaded into the SSL_CTX and if there is no
2999 * DH parameter available in ckchs nor in global, the default
3000 * DH parameters are applied on the SSL_CTX.
3001 * Returns a bitfield containing the flags:
3002 * ERR_FATAL in any fatal error case
3003 * ERR_ALERT if a reason of the error is availabine in err
3004 * ERR_WARN if a warning is available into err
3005 * The value 0 means there is no error nor warning and
3006 * the operation succeed.
3007 */
William Lallemandfa892222019-07-23 16:06:08 +02003008#ifndef OPENSSL_NO_DH
Emeric Brun7a883362019-10-17 13:27:40 +02003009static int ssl_sock_load_dh_params(SSL_CTX *ctx, const struct cert_key_and_chain *ckch,
3010 const char *path, char **err)
William Lallemandfa892222019-07-23 16:06:08 +02003011{
Emeric Brun7a883362019-10-17 13:27:40 +02003012 int ret = 0;
William Lallemandfa892222019-07-23 16:06:08 +02003013 DH *dh = NULL;
3014
William Lallemanda8c73742019-07-31 18:31:34 +02003015 if (ckch && ckch->dh) {
William Lallemandfa892222019-07-23 16:06:08 +02003016 dh = ckch->dh;
Emeric Bruna9363eb2019-10-17 14:53:03 +02003017 if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
3018 memprintf(err, "%sunable to load the DH parameter specified in '%s'",
3019 err && *err ? *err : "", path);
3020#if defined(SSL_CTX_set_dh_auto)
3021 SSL_CTX_set_dh_auto(ctx, 1);
3022 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3023 err && *err ? *err : "");
3024#else
3025 memprintf(err, "%s, DH ciphers won't be available.\n",
3026 err && *err ? *err : "");
3027#endif
3028 ret |= ERR_WARN;
3029 goto end;
3030 }
William Lallemandfa892222019-07-23 16:06:08 +02003031
3032 if (ssl_dh_ptr_index >= 0) {
3033 /* store a pointer to the DH params to avoid complaining about
3034 ssl-default-dh-param not being set for this SSL_CTX */
3035 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, dh);
3036 }
3037 }
3038 else if (global_dh) {
Emeric Bruna9363eb2019-10-17 14:53:03 +02003039 if (!SSL_CTX_set_tmp_dh(ctx, global_dh)) {
3040 memprintf(err, "%sunable to use the global DH parameter for certificate '%s'",
3041 err && *err ? *err : "", path);
3042#if defined(SSL_CTX_set_dh_auto)
3043 SSL_CTX_set_dh_auto(ctx, 1);
3044 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3045 err && *err ? *err : "");
3046#else
3047 memprintf(err, "%s, DH ciphers won't be available.\n",
3048 err && *err ? *err : "");
3049#endif
3050 ret |= ERR_WARN;
3051 goto end;
3052 }
William Lallemandfa892222019-07-23 16:06:08 +02003053 }
3054 else {
3055 /* Clear openssl global errors stack */
3056 ERR_clear_error();
3057
Willy Tarreau6d27a922020-11-05 19:38:05 +01003058 if (global_ssl.default_dh_param && global_ssl.default_dh_param <= 1024) {
William Lallemandfa892222019-07-23 16:06:08 +02003059 /* we are limited to DH parameter of 1024 bits anyway */
3060 if (local_dh_1024 == NULL)
3061 local_dh_1024 = ssl_get_dh_1024();
3062
Emeric Brun7a883362019-10-17 13:27:40 +02003063 if (local_dh_1024 == NULL) {
3064 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3065 err && *err ? *err : "", path);
3066 ret |= ERR_ALERT | ERR_FATAL;
William Lallemandfa892222019-07-23 16:06:08 +02003067 goto end;
Emeric Brun7a883362019-10-17 13:27:40 +02003068 }
William Lallemandfa892222019-07-23 16:06:08 +02003069
Emeric Bruna9363eb2019-10-17 14:53:03 +02003070 if (!SSL_CTX_set_tmp_dh(ctx, local_dh_1024)) {
3071 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3072 err && *err ? *err : "", path);
3073#if defined(SSL_CTX_set_dh_auto)
3074 SSL_CTX_set_dh_auto(ctx, 1);
3075 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3076 err && *err ? *err : "");
3077#else
3078 memprintf(err, "%s, DH ciphers won't be available.\n",
3079 err && *err ? *err : "");
3080#endif
3081 ret |= ERR_WARN;
3082 goto end;
3083 }
William Lallemandfa892222019-07-23 16:06:08 +02003084 }
3085 else {
3086 SSL_CTX_set_tmp_dh_callback(ctx, ssl_get_tmp_dh);
3087 }
William Lallemand8d0f8932019-10-17 18:03:58 +02003088 }
3089
William Lallemandf9568fc2019-10-16 18:27:58 +02003090end:
William Lallemandf9568fc2019-10-16 18:27:58 +02003091 ERR_clear_error();
William Lallemandf9568fc2019-10-16 18:27:58 +02003092 return ret;
3093}
Emmanuel Hocdet54227d82019-07-30 17:04:01 +02003094#endif
William Lallemandfa892222019-07-23 16:06:08 +02003095
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003096
3097/* Load a certificate chain into an SSL context.
Emeric Bruna96b5822019-10-17 13:25:14 +02003098 * Returns a bitfield containing the flags:
3099 * ERR_FATAL in any fatal error case
3100 * ERR_ALERT if the reason of the error is available in err
3101 * ERR_WARN if a warning is available into err
3102 * The value 0 means there is no error nor warning and
3103 * the operation succeed.
yanbzhu488a4d22015-12-01 15:16:07 -05003104 */
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003105static int ssl_sock_load_cert_chain(const char *path, const struct cert_key_and_chain *ckch,
3106 SSL_CTX *ctx, STACK_OF(X509) **find_chain, char **err)
yanbzhu488a4d22015-12-01 15:16:07 -05003107{
Emeric Bruna96b5822019-10-17 13:25:14 +02003108 int errcode = 0;
3109
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003110 if (find_chain == NULL) {
3111 errcode |= ERR_FATAL;
3112 goto end;
yanbzhu488a4d22015-12-01 15:16:07 -05003113 }
3114
3115 if (!SSL_CTX_use_certificate(ctx, ckch->cert)) {
3116 memprintf(err, "%sunable to load SSL certificate into SSL Context '%s'.\n",
3117 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003118 errcode |= ERR_ALERT | ERR_FATAL;
3119 goto end;
yanbzhu488a4d22015-12-01 15:16:07 -05003120 }
3121
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003122 if (ckch->chain) {
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003123 *find_chain = ckch->chain;
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003124 } else {
3125 /* Find Certificate Chain in global */
3126 struct issuer_chain *issuer;
Emmanuel Hocdetef87e0a2020-03-23 11:29:11 +01003127 issuer = ssl_get0_issuer_chain(ckch->cert);
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003128 if (issuer)
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003129 *find_chain = issuer->chain;
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003130 }
William Lallemand85888572020-02-27 14:48:35 +01003131
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003132 if (!*find_chain) {
William Lallemand935d8292020-08-12 20:02:10 +02003133 /* always put a null chain stack in the SSL_CTX so it does not
3134 * try to build the chain from the verify store */
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003135 *find_chain = sk_X509_new_null();
William Lallemand935d8292020-08-12 20:02:10 +02003136 }
3137
William Lallemandf187ce62020-06-02 18:27:20 +02003138 /* Load all certs in the ckch into the ctx_chain for the ssl_ctx */
William Lallemandf187ce62020-06-02 18:27:20 +02003139#ifdef SSL_CTX_set1_chain
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003140 if (!SSL_CTX_set1_chain(ctx, *find_chain)) {
William Lallemand935d8292020-08-12 20:02:10 +02003141 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'. Make sure you are linking against Openssl >= 1.0.2.\n",
3142 err && *err ? *err : "", path);
3143 errcode |= ERR_ALERT | ERR_FATAL;
3144 goto end;
3145 }
William Lallemandf187ce62020-06-02 18:27:20 +02003146#else
3147 { /* legacy compat (< openssl 1.0.2) */
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003148 X509 *ca;
William Lallemandf187ce62020-06-02 18:27:20 +02003149 STACK_OF(X509) *chain;
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003150 chain = X509_chain_up_ref(*find_chain);
William Lallemandf187ce62020-06-02 18:27:20 +02003151 while ((ca = sk_X509_shift(chain)))
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003152 if (!SSL_CTX_add_extra_chain_cert(ctx, ca)) {
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003153 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3154 err && *err ? *err : "", path);
William Lallemandf187ce62020-06-02 18:27:20 +02003155 X509_free(ca);
3156 sk_X509_pop_free(chain, X509_free);
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003157 errcode |= ERR_ALERT | ERR_FATAL;
3158 goto end;
3159 }
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003160 }
William Lallemandf187ce62020-06-02 18:27:20 +02003161#endif
yanbzhu488a4d22015-12-01 15:16:07 -05003162
William Lallemand9a1d8392020-08-10 17:28:23 +02003163#ifdef SSL_CTX_build_cert_chain
William Lallemandbf298af2020-08-10 16:18:45 +02003164 /* remove the Root CA from the SSL_CTX if the option is activated */
3165 if (global_ssl.skip_self_issued_ca) {
3166 if (!SSL_CTX_build_cert_chain(ctx, SSL_BUILD_CHAIN_FLAG_NO_ROOT|SSL_BUILD_CHAIN_FLAG_UNTRUSTED|SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR)) {
3167 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3168 err && *err ? *err : "", path);
3169 errcode |= ERR_ALERT | ERR_FATAL;
3170 goto end;
3171 }
3172 }
William Lallemand9a1d8392020-08-10 17:28:23 +02003173#endif
William Lallemandbf298af2020-08-10 16:18:45 +02003174
Remi Tricot-Le Bretonec805a32021-01-25 17:19:42 +01003175end:
3176 return errcode;
3177}
3178
3179
3180/* Loads the info in ckch into ctx
3181 * Returns a bitfield containing the flags:
3182 * ERR_FATAL in any fatal error case
3183 * ERR_ALERT if the reason of the error is available in err
3184 * ERR_WARN if a warning is available into err
3185 * The value 0 means there is no error nor warning and
3186 * the operation succeed.
3187 */
3188static int ssl_sock_put_ckch_into_ctx(const char *path, const struct cert_key_and_chain *ckch, SSL_CTX *ctx, char **err)
3189{
3190 int errcode = 0;
3191 STACK_OF(X509) *find_chain = NULL;
3192
3193 if (SSL_CTX_use_PrivateKey(ctx, ckch->key) <= 0) {
3194 memprintf(err, "%sunable to load SSL private key into SSL Context '%s'.\n",
3195 err && *err ? *err : "", path);
3196 errcode |= ERR_ALERT | ERR_FATAL;
3197 return errcode;
3198 }
3199
3200 /* Load certificate chain */
3201 errcode |= ssl_sock_load_cert_chain(path, ckch, ctx, &find_chain, err);
3202 if (errcode & ERR_CODE)
3203 goto end;
3204
William Lallemandfa892222019-07-23 16:06:08 +02003205#ifndef OPENSSL_NO_DH
3206 /* store a NULL pointer to indicate we have not yet loaded
3207 a custom DH param file */
3208 if (ssl_dh_ptr_index >= 0) {
3209 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, NULL);
3210 }
3211
Emeric Brun7a883362019-10-17 13:27:40 +02003212 errcode |= ssl_sock_load_dh_params(ctx, ckch, path, err);
3213 if (errcode & ERR_CODE) {
William Lallemandfa892222019-07-23 16:06:08 +02003214 memprintf(err, "%sunable to load DH parameters from file '%s'.\n",
3215 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003216 goto end;
William Lallemandfa892222019-07-23 16:06:08 +02003217 }
3218#endif
3219
Ilya Shipitsinec609092020-11-27 02:39:48 +05003220#ifdef HAVE_SL_CTX_ADD_SERVER_CUSTOM_EXT
William Lallemanda17f4112019-10-10 15:16:44 +02003221 if (sctl_ex_index >= 0 && ckch->sctl) {
3222 if (ssl_sock_load_sctl(ctx, ckch->sctl) < 0) {
3223 memprintf(err, "%s '%s.sctl' is present but cannot be read or parsed'.\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01003224 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003225 errcode |= ERR_ALERT | ERR_FATAL;
3226 goto end;
William Lallemanda17f4112019-10-10 15:16:44 +02003227 }
3228 }
3229#endif
3230
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01003231#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
William Lallemand246c0242019-10-11 08:59:13 +02003232 /* Load OCSP Info into context */
3233 if (ckch->ocsp_response) {
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01003234 if (ssl_sock_load_ocsp(ctx, ckch, find_chain) < 0) {
Tim Duesterhus93128532019-11-23 23:45:10 +01003235 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",
3236 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003237 errcode |= ERR_ALERT | ERR_FATAL;
3238 goto end;
William Lallemand246c0242019-10-11 08:59:13 +02003239 }
3240 }
William Lallemand246c0242019-10-11 08:59:13 +02003241#endif
3242
Emeric Bruna96b5822019-10-17 13:25:14 +02003243 end:
3244 return errcode;
yanbzhu488a4d22015-12-01 15:16:07 -05003245}
3246
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003247
3248/* Loads the info of a ckch built out of a backend certificate into an SSL ctx
3249 * Returns a bitfield containing the flags:
3250 * ERR_FATAL in any fatal error case
3251 * ERR_ALERT if the reason of the error is available in err
3252 * ERR_WARN if a warning is available into err
3253 * The value 0 means there is no error nor warning and
3254 * the operation succeed.
3255 */
3256static int ssl_sock_put_srv_ckch_into_ctx(const char *path, const struct cert_key_and_chain *ckch,
3257 SSL_CTX *ctx, char **err)
3258{
3259 int errcode = 0;
3260 STACK_OF(X509) *find_chain = NULL;
3261
3262 /* Load the private key */
3263 if (SSL_CTX_use_PrivateKey(ctx, ckch->key) <= 0) {
3264 memprintf(err, "%sunable to load SSL private key into SSL Context '%s'.\n",
3265 err && *err ? *err : "", path);
3266 errcode |= ERR_ALERT | ERR_FATAL;
3267 }
3268
3269 /* Load certificate chain */
3270 errcode |= ssl_sock_load_cert_chain(path, ckch, ctx, &find_chain, err);
3271 if (errcode & ERR_CODE)
3272 goto end;
3273
3274 if (SSL_CTX_check_private_key(ctx) <= 0) {
3275 memprintf(err, "%sinconsistencies between private key and certificate loaded from PEM file '%s'.\n",
3276 err && *err ? *err : "", path);
3277 errcode |= ERR_ALERT | ERR_FATAL;
3278 }
3279
3280end:
3281 return errcode;
3282}
3283
3284
William Lallemand614ca0d2019-10-07 13:52:11 +02003285/*
3286 * This function allocate a ckch_inst and create its snis
Emeric Brun054563d2019-10-17 13:16:58 +02003287 *
3288 * Returns a bitfield containing the flags:
3289 * ERR_FATAL in any fatal error case
3290 * ERR_ALERT if the reason of the error is available in err
3291 * ERR_WARN if a warning is available into err
William Lallemand614ca0d2019-10-07 13:52:11 +02003292 */
William Lallemandc756bbd2020-05-13 17:23:59 +02003293int ckch_inst_new_load_store(const char *path, struct ckch_store *ckchs, struct bind_conf *bind_conf,
Emeric Brun054563d2019-10-17 13:16:58 +02003294 struct ssl_bind_conf *ssl_conf, char **sni_filter, int fcount, struct ckch_inst **ckchi, char **err)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003295{
William Lallemandc9402072019-05-15 15:33:54 +02003296 SSL_CTX *ctx;
William Lallemandc9402072019-05-15 15:33:54 +02003297 int i;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003298 int order = 0;
3299 X509_NAME *xname;
3300 char *str;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003301 EVP_PKEY *pkey;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003302 struct pkey_info kinfo = { .sig = TLSEXT_signature_anonymous, .bits = 0 };
Emeric Brunfc0421f2012-09-07 17:30:07 +02003303#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3304 STACK_OF(GENERAL_NAME) *names;
3305#endif
William Lallemand36b84632019-07-18 19:28:17 +02003306 struct cert_key_and_chain *ckch;
William Lallemand614ca0d2019-10-07 13:52:11 +02003307 struct ckch_inst *ckch_inst = NULL;
Emeric Brun054563d2019-10-17 13:16:58 +02003308 int errcode = 0;
3309
3310 *ckchi = NULL;
William Lallemanda59191b2019-05-15 16:08:56 +02003311
William Lallemande3af8fb2019-10-08 11:36:53 +02003312 if (!ckchs || !ckchs->ckch)
Emeric Brun054563d2019-10-17 13:16:58 +02003313 return ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003314
William Lallemande3af8fb2019-10-08 11:36:53 +02003315 ckch = ckchs->ckch;
William Lallemand36b84632019-07-18 19:28:17 +02003316
William Lallemandc9402072019-05-15 15:33:54 +02003317 ctx = SSL_CTX_new(SSLv23_server_method());
3318 if (!ctx) {
3319 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3320 err && *err ? *err : "", path);
Emeric Brun054563d2019-10-17 13:16:58 +02003321 errcode |= ERR_ALERT | ERR_FATAL;
3322 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003323 }
3324
Emeric Bruna96b5822019-10-17 13:25:14 +02003325 errcode |= ssl_sock_put_ckch_into_ctx(path, ckch, ctx, err);
3326 if (errcode & ERR_CODE)
William Lallemand614ca0d2019-10-07 13:52:11 +02003327 goto error;
William Lallemand614ca0d2019-10-07 13:52:11 +02003328
3329 ckch_inst = ckch_inst_new();
3330 if (!ckch_inst) {
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;
William Lallemandd9199372019-10-04 15:37:05 +02003334 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003335 }
3336
William Lallemand36b84632019-07-18 19:28:17 +02003337 pkey = X509_get_pubkey(ckch->cert);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003338 if (pkey) {
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003339 kinfo.bits = EVP_PKEY_bits(pkey);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003340 switch(EVP_PKEY_base_id(pkey)) {
3341 case EVP_PKEY_RSA:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003342 kinfo.sig = TLSEXT_signature_rsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003343 break;
3344 case EVP_PKEY_EC:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003345 kinfo.sig = TLSEXT_signature_ecdsa;
3346 break;
3347 case EVP_PKEY_DSA:
3348 kinfo.sig = TLSEXT_signature_dsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003349 break;
3350 }
3351 EVP_PKEY_free(pkey);
3352 }
3353
Emeric Brun50bcecc2013-04-22 13:05:23 +02003354 if (fcount) {
William Lallemandfe49bb32019-10-03 23:46:33 +02003355 while (fcount--) {
William Lallemand1d29c742019-10-04 00:53:29 +02003356 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 +02003357 if (order < 0) {
3358 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003359 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003360 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003361 }
3362 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003363 }
3364 else {
Emeric Brunfc0421f2012-09-07 17:30:07 +02003365#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
William Lallemand36b84632019-07-18 19:28:17 +02003366 names = X509_get_ext_d2i(ckch->cert, NID_subject_alt_name, NULL, NULL);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003367 if (names) {
3368 for (i = 0; i < sk_GENERAL_NAME_num(names); i++) {
3369 GENERAL_NAME *name = sk_GENERAL_NAME_value(names, i);
3370 if (name->type == GEN_DNS) {
3371 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003372 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003373 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003374 if (order < 0) {
3375 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003376 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003377 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003378 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003379 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003380 }
3381 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003382 sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
Emeric Brunfc0421f2012-09-07 17:30:07 +02003383 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003384#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
William Lallemand36b84632019-07-18 19:28:17 +02003385 xname = X509_get_subject_name(ckch->cert);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003386 i = -1;
3387 while ((i = X509_NAME_get_index_by_NID(xname, NID_commonName, i)) != -1) {
3388 X509_NAME_ENTRY *entry = X509_NAME_get_entry(xname, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02003389 ASN1_STRING *value;
3390
3391 value = X509_NAME_ENTRY_get_data(entry);
3392 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003393 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003394 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003395 if (order < 0) {
3396 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003397 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003398 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003399 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003400 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003401 }
3402 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003403 /* we must not free the SSL_CTX anymore below, since it's already in
3404 * the tree, so it will be discovered and cleaned in time.
3405 */
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003406
Emeric Brunfc0421f2012-09-07 17:30:07 +02003407#ifndef SSL_CTRL_SET_TLSEXT_HOSTNAME
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003408 if (bind_conf->default_ctx) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +02003409 memprintf(err, "%sthis version of openssl cannot load multiple SSL certificates.\n",
3410 err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003411 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003412 goto error;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003413 }
3414#endif
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003415 if (!bind_conf->default_ctx) {
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003416 bind_conf->default_ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003417 bind_conf->default_ssl_conf = ssl_conf;
William Lallemand21724f02019-11-04 17:56:13 +01003418 ckch_inst->is_default = 1;
William Lallemand02e19a52020-04-08 16:11:26 +02003419 SSL_CTX_up_ref(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003420 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003421
William Lallemand9117de92019-10-04 00:29:42 +02003422 /* everything succeed, the ckch instance can be used */
3423 ckch_inst->bind_conf = bind_conf;
William Lallemand150bfa82019-09-19 17:12:49 +02003424 ckch_inst->ssl_conf = ssl_conf;
William Lallemandcfca1422020-03-05 10:17:47 +01003425 ckch_inst->ckch_store = ckchs;
William Lallemand9117de92019-10-04 00:29:42 +02003426
William Lallemand02e19a52020-04-08 16:11:26 +02003427 SSL_CTX_free(ctx); /* we need to free the ctx since we incremented the refcount where it's used */
3428
Emeric Brun054563d2019-10-17 13:16:58 +02003429 *ckchi = ckch_inst;
3430 return errcode;
William Lallemandd9199372019-10-04 15:37:05 +02003431
3432error:
3433 /* free the allocated sni_ctxs */
William Lallemand614ca0d2019-10-07 13:52:11 +02003434 if (ckch_inst) {
William Lallemand02e19a52020-04-08 16:11:26 +02003435 if (ckch_inst->is_default)
3436 SSL_CTX_free(ctx);
3437
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003438 ckch_inst_free(ckch_inst);
William Lallemand614ca0d2019-10-07 13:52:11 +02003439 ckch_inst = NULL;
William Lallemandd9199372019-10-04 15:37:05 +02003440 }
William Lallemandd9199372019-10-04 15:37:05 +02003441 SSL_CTX_free(ctx);
3442
Emeric Brun054563d2019-10-17 13:16:58 +02003443 return errcode;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003444}
3445
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003446
3447/*
3448 * This function allocate a ckch_inst that will be used on the backend side
3449 * (server line)
3450 *
3451 * Returns a bitfield containing the flags:
3452 * ERR_FATAL in any fatal error case
3453 * ERR_ALERT if the reason of the error is available in err
3454 * ERR_WARN if a warning is available into err
3455 */
3456int ckch_inst_new_load_srv_store(const char *path, struct ckch_store *ckchs,
William Lallemand795bd9b2021-01-26 11:27:42 +01003457 struct ckch_inst **ckchi, char **err)
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003458{
3459 SSL_CTX *ctx;
3460 struct cert_key_and_chain *ckch;
3461 struct ckch_inst *ckch_inst = NULL;
3462 int errcode = 0;
3463
3464 *ckchi = NULL;
3465
3466 if (!ckchs || !ckchs->ckch)
3467 return ERR_FATAL;
3468
3469 ckch = ckchs->ckch;
3470
3471 ctx = SSL_CTX_new(SSLv23_client_method());
3472 if (!ctx) {
3473 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3474 err && *err ? *err : "", path);
3475 errcode |= ERR_ALERT | ERR_FATAL;
3476 goto error;
3477 }
3478
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003479 errcode |= ssl_sock_put_srv_ckch_into_ctx(path, ckch, ctx, err);
3480 if (errcode & ERR_CODE)
3481 goto error;
3482
3483 ckch_inst = ckch_inst_new();
3484 if (!ckch_inst) {
3485 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3486 err && *err ? *err : "", path);
3487 errcode |= ERR_ALERT | ERR_FATAL;
3488 goto error;
3489 }
3490
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003491 /* everything succeed, the ckch instance can be used */
3492 ckch_inst->bind_conf = NULL;
3493 ckch_inst->ssl_conf = NULL;
3494 ckch_inst->ckch_store = ckchs;
William Lallemand795bd9b2021-01-26 11:27:42 +01003495 ckch_inst->ctx = ctx;
William Lallemanddb26e2b2021-01-26 12:01:46 +01003496 ckch_inst->is_server_instance = 1;
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003497
3498 *ckchi = ckch_inst;
3499 return errcode;
3500
3501error:
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003502 SSL_CTX_free(ctx);
3503
3504 return errcode;
3505}
3506
Willy Tarreau8c5414a2019-10-16 17:06:25 +02003507/* Returns a set of ERR_* flags possibly with an error in <err>. */
William Lallemand614ca0d2019-10-07 13:52:11 +02003508static int ssl_sock_load_ckchs(const char *path, struct ckch_store *ckchs,
3509 struct bind_conf *bind_conf, struct ssl_bind_conf *ssl_conf,
William Lallemand24bde432020-03-09 16:48:43 +01003510 char **sni_filter, int fcount, struct ckch_inst **ckch_inst, char **err)
William Lallemand614ca0d2019-10-07 13:52:11 +02003511{
Emeric Brun054563d2019-10-17 13:16:58 +02003512 int errcode = 0;
William Lallemand614ca0d2019-10-07 13:52:11 +02003513
3514 /* we found the ckchs in the tree, we can use it directly */
William Lallemande7eb1fe2020-09-16 16:17:51 +02003515 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 +02003516
Emeric Brun054563d2019-10-17 13:16:58 +02003517 if (errcode & ERR_CODE)
3518 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003519
William Lallemand24bde432020-03-09 16:48:43 +01003520 ssl_sock_load_cert_sni(*ckch_inst, bind_conf);
William Lallemand614ca0d2019-10-07 13:52:11 +02003521
3522 /* succeed, add the instance to the ckch_store's list of instance */
William Lallemand24bde432020-03-09 16:48:43 +01003523 LIST_ADDQ(&ckchs->ckch_inst, &((*ckch_inst)->by_ckchs));
Emeric Brun054563d2019-10-17 13:16:58 +02003524 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003525}
3526
William Lallemanddb26e2b2021-01-26 12:01:46 +01003527/* This function generates a <struct ckch_inst *> for a <struct server *>, and
3528 * fill the SSL_CTX of the server.
3529 *
3530 * Returns a set of ERR_* flags possibly with an error in <err>. */
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003531static int ssl_sock_load_srv_ckchs(const char *path, struct ckch_store *ckchs,
William Lallemanddb26e2b2021-01-26 12:01:46 +01003532 struct server *server, struct ckch_inst **ckch_inst, char **err)
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003533{
3534 int errcode = 0;
3535
3536 /* we found the ckchs in the tree, we can use it directly */
William Lallemand795bd9b2021-01-26 11:27:42 +01003537 errcode |= ckch_inst_new_load_srv_store(path, ckchs, ckch_inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003538
3539 if (errcode & ERR_CODE)
3540 return errcode;
3541
William Lallemanddb26e2b2021-01-26 12:01:46 +01003542 (*ckch_inst)->server = server;
3543 /* Keep the reference to the SSL_CTX in the server. */
3544 SSL_CTX_up_ref((*ckch_inst)->ctx);
3545 server->ssl_ctx.ctx = (*ckch_inst)->ctx;
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003546 /* succeed, add the instance to the ckch_store's list of instance */
3547 LIST_ADDQ(&ckchs->ckch_inst, &((*ckch_inst)->by_ckchs));
3548 return errcode;
3549}
3550
William Lallemand6be66ec2020-03-06 22:26:32 +01003551
William Lallemand4c68bba2020-03-30 18:45:10 +02003552
3553
3554/* Make sure openssl opens /dev/urandom before the chroot. The work is only
3555 * done once. Zero is returned if the operation fails. No error is returned
3556 * if the random is said as not implemented, because we expect that openssl
3557 * will use another method once needed.
3558 */
3559static int ssl_initialize_random()
3560{
3561 unsigned char random;
3562 static int random_initialized = 0;
3563
3564 if (!random_initialized && RAND_bytes(&random, 1) != 0)
3565 random_initialized = 1;
3566
3567 return random_initialized;
3568}
3569
William Lallemand2954c472020-03-06 21:54:13 +01003570/* Load a crt-list file, this is done in 2 parts:
3571 * - store the content of the file in a crtlist structure with crtlist_entry structures
3572 * - generate the instances by iterating on entries in the crtlist struct
3573 *
3574 * Nothing is locked there, this function is used in the configuration parser.
3575 *
3576 * Returns a set of ERR_* flags possibly with an error in <err>.
3577 */
William Lallemand6be66ec2020-03-06 22:26:32 +01003578int 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 +01003579{
3580 struct crtlist *crtlist = NULL;
3581 struct ebmb_node *eb;
William Lallemand49398312020-03-30 17:01:33 +02003582 struct crtlist_entry *entry = NULL;
William Lallemand79d31ec2020-03-25 15:10:49 +01003583 struct bind_conf_list *bind_conf_node = NULL;
William Lallemand2954c472020-03-06 21:54:13 +01003584 int cfgerr = 0;
William Lallemand41ca9302020-04-08 13:15:18 +02003585 char *end;
William Lallemand2954c472020-03-06 21:54:13 +01003586
William Lallemand79d31ec2020-03-25 15:10:49 +01003587 bind_conf_node = malloc(sizeof(*bind_conf_node));
3588 if (!bind_conf_node) {
3589 memprintf(err, "%sCan't alloc memory!\n", err && *err ? *err : "");
3590 cfgerr |= ERR_FATAL | ERR_ALERT;
3591 goto error;
3592 }
3593 bind_conf_node->next = NULL;
3594 bind_conf_node->bind_conf = bind_conf;
3595
William Lallemand41ca9302020-04-08 13:15:18 +02003596 /* strip trailing slashes, including first one */
3597 for (end = file + strlen(file) - 1; end >= file && *end == '/'; end--)
3598 *end = 0;
3599
William Lallemand2954c472020-03-06 21:54:13 +01003600 /* look for an existing crtlist or create one */
3601 eb = ebst_lookup(&crtlists_tree, file);
3602 if (eb) {
3603 crtlist = ebmb_entry(eb, struct crtlist, node);
3604 } else {
William Lallemand6be66ec2020-03-06 22:26:32 +01003605 /* load a crt-list OR a directory */
3606 if (dir)
3607 cfgerr |= crtlist_load_cert_dir(file, bind_conf, &crtlist, err);
3608 else
3609 cfgerr |= crtlist_parse_file(file, bind_conf, curproxy, &crtlist, err);
3610
William Lallemand2954c472020-03-06 21:54:13 +01003611 if (!(cfgerr & ERR_CODE))
3612 ebst_insert(&crtlists_tree, &crtlist->node);
3613 }
3614
3615 if (cfgerr & ERR_CODE) {
3616 cfgerr |= ERR_FATAL | ERR_ALERT;
3617 goto error;
3618 }
3619
3620 /* generates ckch instance from the crtlist_entry */
3621 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3622 struct ckch_store *store;
3623 struct ckch_inst *ckch_inst = NULL;
3624
3625 store = entry->node.key;
3626 cfgerr |= ssl_sock_load_ckchs(store->path, store, bind_conf, entry->ssl_conf, entry->filters, entry->fcount, &ckch_inst, err);
3627 if (cfgerr & ERR_CODE) {
3628 memprintf(err, "error processing line %d in file '%s' : %s", entry->linenum, file, *err);
3629 goto error;
3630 }
William Lallemand49398312020-03-30 17:01:33 +02003631 LIST_ADDQ(&entry->ckch_inst, &ckch_inst->by_crtlist_entry);
William Lallemandcaa16192020-04-08 16:29:15 +02003632 ckch_inst->crtlist_entry = entry;
William Lallemand2954c472020-03-06 21:54:13 +01003633 }
William Lallemand2954c472020-03-06 21:54:13 +01003634
William Lallemand79d31ec2020-03-25 15:10:49 +01003635 /* add the bind_conf to the list */
3636 bind_conf_node->next = crtlist->bind_conf;
3637 crtlist->bind_conf = bind_conf_node;
3638
William Lallemand2954c472020-03-06 21:54:13 +01003639 return cfgerr;
3640error:
3641 {
William Lallemand49398312020-03-30 17:01:33 +02003642 struct crtlist_entry *lastentry;
William Lallemand2954c472020-03-06 21:54:13 +01003643 struct ckch_inst *inst, *s_inst;
3644
William Lallemand49398312020-03-30 17:01:33 +02003645 lastentry = entry; /* which entry we tried to generate last */
3646 if (lastentry) {
3647 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3648 if (entry == lastentry) /* last entry we tried to generate, no need to go further */
3649 break;
3650
3651 list_for_each_entry_safe(inst, s_inst, &entry->ckch_inst, by_crtlist_entry) {
William Lallemand2954c472020-03-06 21:54:13 +01003652
William Lallemand49398312020-03-30 17:01:33 +02003653 /* this was not generated for this bind_conf, skip */
3654 if (inst->bind_conf != bind_conf)
3655 continue;
3656
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003657 /* free the sni_ctx and instance */
3658 ckch_inst_free(inst);
William Lallemand49398312020-03-30 17:01:33 +02003659 }
William Lallemand2954c472020-03-06 21:54:13 +01003660 }
William Lallemand2954c472020-03-06 21:54:13 +01003661 }
William Lallemand79d31ec2020-03-25 15:10:49 +01003662 free(bind_conf_node);
William Lallemand2954c472020-03-06 21:54:13 +01003663 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003664 return cfgerr;
3665}
3666
William Lallemand06b22a82020-03-16 14:45:55 +01003667/* Returns a set of ERR_* flags possibly with an error in <err>. */
3668int ssl_sock_load_cert(char *path, struct bind_conf *bind_conf, char **err)
3669{
3670 struct stat buf;
William Lallemand06b22a82020-03-16 14:45:55 +01003671 int cfgerr = 0;
3672 struct ckch_store *ckchs;
William Lallemand24bde432020-03-09 16:48:43 +01003673 struct ckch_inst *ckch_inst = NULL;
William Lallemand06ce84a2020-11-20 15:36:13 +01003674 int found = 0; /* did we found a file to load ? */
William Lallemand06b22a82020-03-16 14:45:55 +01003675
3676 if ((ckchs = ckchs_lookup(path))) {
3677 /* we found the ckchs in the tree, we can use it directly */
William Lallemand06ce84a2020-11-20 15:36:13 +01003678 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3679 found++;
3680 } else if (stat(path, &buf) == 0) {
3681 found++;
William Lallemand06b22a82020-03-16 14:45:55 +01003682 if (S_ISDIR(buf.st_mode) == 0) {
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003683 ckchs = ckchs_load_cert_file(path, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003684 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003685 cfgerr |= ERR_ALERT | ERR_FATAL;
3686 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003687 } else {
William Lallemand06ce84a2020-11-20 15:36:13 +01003688 cfgerr |= ssl_sock_load_cert_list_file(path, 1, bind_conf, bind_conf->frontend, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003689 }
3690 } else {
3691 /* stat failed, could be a bundle */
3692 if (global_ssl.extra_files & SSL_GF_BUNDLE) {
William Lallemanddfa93be2020-09-16 14:48:52 +02003693 char fp[MAXPATHLEN+1] = {0};
3694 int n = 0;
3695
3696 /* Load all possible certs and keys in separate ckch_store */
3697 for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
3698 struct stat buf;
3699 int ret;
3700
3701 ret = snprintf(fp, sizeof(fp), "%s.%s", path, SSL_SOCK_KEYTYPE_NAMES[n]);
3702 if (ret > sizeof(fp))
3703 continue;
3704
3705 if ((ckchs = ckchs_lookup(fp))) {
3706 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06ce84a2020-11-20 15:36:13 +01003707 found++;
William Lallemanddfa93be2020-09-16 14:48:52 +02003708 } else {
3709 if (stat(fp, &buf) == 0) {
William Lallemand06ce84a2020-11-20 15:36:13 +01003710 found++;
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003711 ckchs = ckchs_load_cert_file(fp, err);
William Lallemanddfa93be2020-09-16 14:48:52 +02003712 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003713 cfgerr |= ERR_ALERT | ERR_FATAL;
William Lallemanddfa93be2020-09-16 14:48:52 +02003714 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3715 }
3716 }
3717 }
William Lallemandb7fdfdf2020-12-04 15:45:02 +01003718#if HA_OPENSSL_VERSION_NUMBER < 0x10101000L
3719 if (found) {
3720 memprintf(err, "%sCan't load '%s'. Loading a multi certificates bundle requires OpenSSL >= 1.1.1\n",
3721 err && *err ? *err : "", path);
3722 cfgerr |= ERR_ALERT | ERR_FATAL;
3723 }
3724#endif
William Lallemand06b22a82020-03-16 14:45:55 +01003725 }
3726 }
William Lallemand06ce84a2020-11-20 15:36:13 +01003727 if (!found) {
3728 memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
3729 err && *err ? *err : "", path, strerror(errno));
3730 cfgerr |= ERR_ALERT | ERR_FATAL;
3731 }
William Lallemand06b22a82020-03-16 14:45:55 +01003732
3733 return cfgerr;
3734}
3735
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003736
3737/* Create a full ssl context and ckch instance that will be used for a specific
3738 * backend server (server configuration line).
3739 * Returns a set of ERR_* flags possibly with an error in <err>.
3740 */
3741int ssl_sock_load_srv_cert(char *path, struct server *server, char **err)
3742{
3743 struct stat buf;
3744 int cfgerr = 0;
3745 struct ckch_store *ckchs;
3746 int found = 0; /* did we found a file to load ? */
3747
3748 if ((ckchs = ckchs_lookup(path))) {
3749 /* we found the ckchs in the tree, we can use it directly */
William Lallemanddb26e2b2021-01-26 12:01:46 +01003750 cfgerr |= ssl_sock_load_srv_ckchs(path, ckchs, server, &server->ssl_ctx.inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003751 found++;
3752 } else if (stat(path, &buf) == 0) {
3753 /* We do not manage directories on backend side. */
3754 if (S_ISDIR(buf.st_mode) == 0) {
3755 ++found;
3756 ckchs = ckchs_load_cert_file(path, err);
3757 if (!ckchs)
3758 cfgerr |= ERR_ALERT | ERR_FATAL;
William Lallemanddb26e2b2021-01-26 12:01:46 +01003759 cfgerr |= ssl_sock_load_srv_ckchs(path, ckchs, server, &server->ssl_ctx.inst, err);
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01003760 }
3761 }
3762 if (!found) {
3763 memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
3764 err && *err ? *err : "", path, strerror(errno));
3765 cfgerr |= ERR_ALERT | ERR_FATAL;
3766 }
3767
3768 return cfgerr;
3769}
3770
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003771/* Create an initial CTX used to start the SSL connection before switchctx */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003772static int
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003773ssl_sock_initial_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003774{
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003775 SSL_CTX *ctx = NULL;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003776 long options =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003777 SSL_OP_ALL | /* all known workarounds for bugs */
3778 SSL_OP_NO_SSLv2 |
3779 SSL_OP_NO_COMPRESSION |
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003780 SSL_OP_SINGLE_DH_USE |
Emeric Brun2b58d042012-09-20 17:10:03 +02003781 SSL_OP_SINGLE_ECDH_USE |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003782 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION |
Lukas Tribus926594f2018-05-18 17:55:57 +02003783 SSL_OP_PRIORITIZE_CHACHA |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003784 SSL_OP_CIPHER_SERVER_PREFERENCE;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003785 long mode =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003786 SSL_MODE_ENABLE_PARTIAL_WRITE |
3787 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
Willy Tarreau396a1862014-11-13 14:06:52 +01003788 SSL_MODE_RELEASE_BUFFERS |
3789 SSL_MODE_SMALL_BUFFERS;
Emmanuel Hocdet43664762017-08-09 18:26:20 +02003790 struct tls_version_filter *conf_ssl_methods = &bind_conf->ssl_conf.ssl_methods;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003791 int i, min, max, hole;
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003792 int flags = MC_SSL_O_ALL;
3793 int cfgerr = 0;
William Lallemand50df1cb2020-06-02 10:52:24 +02003794 const int default_min_ver = CONF_TLSV12;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003795
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003796 ctx = SSL_CTX_new(SSLv23_server_method());
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003797 bind_conf->initial_ctx = ctx;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003798
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003799 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01003800 ha_warning("Proxy '%s': no-sslv3/no-tlsv1x are ignored for bind '%s' at [%s:%d]. "
3801 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3802 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003803 else
3804 flags = conf_ssl_methods->flags;
3805
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003806 min = conf_ssl_methods->min;
3807 max = conf_ssl_methods->max;
William Lallemand50df1cb2020-06-02 10:52:24 +02003808
3809 /* default minimum is TLSV12, */
3810 if (!min) {
3811 if (!max || (max >= default_min_ver)) {
3812 min = default_min_ver;
3813 } else {
3814 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). "
3815 "Setting the ssl-min-ver to %s. Use 'ssl-min-ver' to fix this.\n",
3816 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line, methodVersions[default_min_ver].name, methodVersions[max].name);
3817 min = max;
3818 }
3819 }
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003820 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003821 if (min)
3822 flags |= (methodVersions[min].flag - 1);
3823 if (max)
3824 flags |= ~((methodVersions[max].flag << 1) - 1);
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003825 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003826 min = max = CONF_TLSV_NONE;
3827 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003828 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003829 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003830 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003831 if (min) {
3832 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003833 ha_warning("Proxy '%s': SSL/TLS versions range not contiguous for bind '%s' at [%s:%d]. "
3834 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3835 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line,
3836 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003837 hole = 0;
3838 }
3839 max = i;
3840 }
3841 else {
3842 min = max = i;
3843 }
3844 }
3845 else {
3846 if (min)
3847 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003848 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003849 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003850 ha_alert("Proxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
3851 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003852 cfgerr += 1;
3853 }
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02003854 /* save real min/max in bind_conf */
3855 conf_ssl_methods->min = min;
3856 conf_ssl_methods->max = max;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003857
Willy Tarreau9a1ab082019-05-09 13:26:41 +02003858#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003859 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08003860 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003861 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003862 methodVersions[min].ctx_set_version(ctx, SET_SERVER);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003863 else
William Lallemandd0712f32020-06-11 17:34:00 +02003864 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++) {
3865 /* clear every version flags in case SSL_CTX_new()
3866 * returns an SSL_CTX with disabled versions */
3867 SSL_CTX_clear_options(ctx, methodVersions[i].option);
3868
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003869 if (flags & methodVersions[i].flag)
3870 options |= methodVersions[i].option;
William Lallemandd0712f32020-06-11 17:34:00 +02003871
3872 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003873#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003874 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003875 methodVersions[min].ctx_set_version(ctx, SET_MIN);
3876 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emeric Brunfa5c5c82017-04-28 16:19:51 +02003877#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003878
3879 if (bind_conf->ssl_options & BC_SSL_O_NO_TLS_TICKETS)
3880 options |= SSL_OP_NO_TICKET;
3881 if (bind_conf->ssl_options & BC_SSL_O_PREF_CLIE_CIPH)
3882 options &= ~SSL_OP_CIPHER_SERVER_PREFERENCE;
Dirkjan Bussink526894f2019-01-21 09:35:03 -08003883
3884#ifdef SSL_OP_NO_RENEGOTIATION
3885 options |= SSL_OP_NO_RENEGOTIATION;
3886#endif
3887
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003888 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003889
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05003890#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003891 if (global_ssl.async)
3892 mode |= SSL_MODE_ASYNC;
3893#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003894 SSL_CTX_set_mode(ctx, mode);
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003895 if (global_ssl.life_time)
3896 SSL_CTX_set_timeout(ctx, global_ssl.life_time);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003897
3898#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3899#ifdef OPENSSL_IS_BORINGSSL
3900 SSL_CTX_set_select_certificate_cb(ctx, ssl_sock_switchctx_cbk);
3901 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Ilya Shipitsine9ff8992020-01-19 12:20:14 +05003902#elif defined(SSL_OP_NO_ANTI_REPLAY)
Olivier Houchard545989f2019-12-17 15:39:54 +01003903 if (bind_conf->ssl_conf.early_data)
Olivier Houchard51088ce2019-01-02 18:46:41 +01003904 SSL_CTX_set_options(ctx, SSL_OP_NO_ANTI_REPLAY);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02003905 SSL_CTX_set_client_hello_cb(ctx, ssl_sock_switchctx_cbk, NULL);
3906 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003907#else
3908 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003909#endif
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02003910 SSL_CTX_set_tlsext_servername_arg(ctx, bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003911#endif
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003912 return cfgerr;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003913}
3914
William Lallemand4f45bb92017-10-30 20:08:51 +01003915
3916static inline void sh_ssl_sess_free_blocks(struct shared_block *first, struct shared_block *block)
3917{
3918 if (first == block) {
3919 struct sh_ssl_sess_hdr *sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3920 if (first->len > 0)
3921 sh_ssl_sess_tree_delete(sh_ssl_sess);
3922 }
3923}
3924
3925/* return first block from sh_ssl_sess */
3926static inline struct shared_block *sh_ssl_sess_first_block(struct sh_ssl_sess_hdr *sh_ssl_sess)
3927{
3928 return (struct shared_block *)((unsigned char *)sh_ssl_sess - ((struct shared_block *)NULL)->data);
3929
3930}
3931
3932/* store a session into the cache
3933 * s_id : session id padded with zero to SSL_MAX_SSL_SESSION_ID_LENGTH
3934 * data: asn1 encoded session
3935 * data_len: asn1 encoded session length
3936 * Returns 1 id session was stored (else 0)
3937 */
3938static int sh_ssl_sess_store(unsigned char *s_id, unsigned char *data, int data_len)
3939{
3940 struct shared_block *first;
3941 struct sh_ssl_sess_hdr *sh_ssl_sess, *oldsh_ssl_sess;
3942
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02003943 first = shctx_row_reserve_hot(ssl_shctx, NULL, data_len + sizeof(struct sh_ssl_sess_hdr));
William Lallemand4f45bb92017-10-30 20:08:51 +01003944 if (!first) {
3945 /* Could not retrieve enough free blocks to store that session */
3946 return 0;
3947 }
3948
3949 /* STORE the key in the first elem */
3950 sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3951 memcpy(sh_ssl_sess->key_data, s_id, SSL_MAX_SSL_SESSION_ID_LENGTH);
3952 first->len = sizeof(struct sh_ssl_sess_hdr);
3953
3954 /* it returns the already existing node
3955 or current node if none, never returns null */
3956 oldsh_ssl_sess = sh_ssl_sess_tree_insert(sh_ssl_sess);
3957 if (oldsh_ssl_sess != sh_ssl_sess) {
3958 /* NOTE: Row couldn't be in use because we lock read & write function */
3959 /* release the reserved row */
3960 shctx_row_dec_hot(ssl_shctx, first);
3961 /* replace the previous session already in the tree */
3962 sh_ssl_sess = oldsh_ssl_sess;
3963 /* ignore the previous session data, only use the header */
3964 first = sh_ssl_sess_first_block(sh_ssl_sess);
3965 shctx_row_inc_hot(ssl_shctx, first);
3966 first->len = sizeof(struct sh_ssl_sess_hdr);
3967 }
3968
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02003969 if (shctx_row_data_append(ssl_shctx, first, NULL, data, data_len) < 0) {
William Lallemand99b90af2018-01-03 19:15:51 +01003970 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01003971 return 0;
William Lallemand99b90af2018-01-03 19:15:51 +01003972 }
3973
3974 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01003975
3976 return 1;
3977}
William Lallemanded0b5ad2017-10-30 19:36:36 +01003978
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003979/* SSL callback used when a new session is created while connecting to a server */
3980static int ssl_sess_new_srv_cb(SSL *ssl, SSL_SESSION *sess)
3981{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02003982 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houcharde6060c52017-11-16 17:42:52 +01003983 struct server *s;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003984
Willy Tarreau07d94e42018-09-20 10:57:52 +02003985 s = __objt_server(conn->target);
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003986
Olivier Houcharde6060c52017-11-16 17:42:52 +01003987 if (!(s->ssl_ctx.options & SRV_SSL_O_NO_REUSE)) {
3988 int len;
3989 unsigned char *ptr;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003990
Olivier Houcharde6060c52017-11-16 17:42:52 +01003991 len = i2d_SSL_SESSION(sess, NULL);
3992 if (s->ssl_ctx.reused_sess[tid].ptr && s->ssl_ctx.reused_sess[tid].allocated_size >= len) {
3993 ptr = s->ssl_ctx.reused_sess[tid].ptr;
3994 } else {
3995 free(s->ssl_ctx.reused_sess[tid].ptr);
3996 ptr = s->ssl_ctx.reused_sess[tid].ptr = malloc(len);
3997 s->ssl_ctx.reused_sess[tid].allocated_size = len;
3998 }
3999 if (s->ssl_ctx.reused_sess[tid].ptr) {
4000 s->ssl_ctx.reused_sess[tid].size = i2d_SSL_SESSION(sess,
4001 &ptr);
4002 }
4003 } else {
4004 free(s->ssl_ctx.reused_sess[tid].ptr);
4005 s->ssl_ctx.reused_sess[tid].ptr = NULL;
4006 }
4007
4008 return 0;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004009}
4010
Olivier Houcharde6060c52017-11-16 17:42:52 +01004011
William Lallemanded0b5ad2017-10-30 19:36:36 +01004012/* SSL callback used on new session creation */
William Lallemand4f45bb92017-10-30 20:08:51 +01004013int sh_ssl_sess_new_cb(SSL *ssl, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004014{
4015 unsigned char encsess[SHSESS_MAX_DATA_LEN]; /* encoded session */
4016 unsigned char encid[SSL_MAX_SSL_SESSION_ID_LENGTH]; /* encoded id */
4017 unsigned char *p;
4018 int data_len;
Emeric Bruneb469652019-10-08 18:27:37 +02004019 unsigned int sid_length;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004020 const unsigned char *sid_data;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004021
4022 /* Session id is already stored in to key and session id is known
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05004023 * so we don't store it to keep size.
Emeric Bruneb469652019-10-08 18:27:37 +02004024 * note: SSL_SESSION_set1_id is using
4025 * a memcpy so we need to use a different pointer
4026 * than sid_data or sid_ctx_data to avoid valgrind
4027 * complaining.
William Lallemanded0b5ad2017-10-30 19:36:36 +01004028 */
4029
4030 sid_data = SSL_SESSION_get_id(sess, &sid_length);
Emeric Bruneb469652019-10-08 18:27:37 +02004031
4032 /* copy value in an other buffer */
4033 memcpy(encid, sid_data, sid_length);
4034
4035 /* pad with 0 */
4036 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH)
4037 memset(encid + sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH-sid_length);
4038
4039 /* force length to zero to avoid ASN1 encoding */
4040 SSL_SESSION_set1_id(sess, encid, 0);
4041
4042 /* force length to zero to avoid ASN1 encoding */
4043 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, 0);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004044
4045 /* check if buffer is large enough for the ASN1 encoded session */
4046 data_len = i2d_SSL_SESSION(sess, NULL);
4047 if (data_len > SHSESS_MAX_DATA_LEN)
4048 goto err;
4049
4050 p = encsess;
4051
4052 /* process ASN1 session encoding before the lock */
4053 i2d_SSL_SESSION(sess, &p);
4054
William Lallemanded0b5ad2017-10-30 19:36:36 +01004055
William Lallemanda3c77cf2017-10-30 23:44:40 +01004056 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004057 /* store to cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004058 sh_ssl_sess_store(encid, encsess, data_len);
William Lallemanda3c77cf2017-10-30 23:44:40 +01004059 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004060err:
4061 /* reset original length values */
Emeric Bruneb469652019-10-08 18:27:37 +02004062 SSL_SESSION_set1_id(sess, encid, sid_length);
4063 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
William Lallemanded0b5ad2017-10-30 19:36:36 +01004064
4065 return 0; /* do not increment session reference count */
4066}
4067
4068/* SSL callback used on lookup an existing session cause none found in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004069SSL_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 +01004070{
William Lallemand4f45bb92017-10-30 20:08:51 +01004071 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004072 unsigned char data[SHSESS_MAX_DATA_LEN], *p;
4073 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
William Lallemanded0b5ad2017-10-30 19:36:36 +01004074 SSL_SESSION *sess;
William Lallemand4f45bb92017-10-30 20:08:51 +01004075 struct shared_block *first;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004076
4077 global.shctx_lookups++;
4078
4079 /* allow the session to be freed automatically by openssl */
4080 *do_copy = 0;
4081
4082 /* tree key is zeros padded sessionid */
4083 if (key_len < SSL_MAX_SSL_SESSION_ID_LENGTH) {
4084 memcpy(tmpkey, key, key_len);
4085 memset(tmpkey + key_len, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - key_len);
4086 key = tmpkey;
4087 }
4088
4089 /* lock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004090 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004091
4092 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004093 sh_ssl_sess = sh_ssl_sess_tree_lookup(key);
4094 if (!sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01004095 /* no session found: unlock cache and exit */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004096 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004097 global.shctx_misses++;
4098 return NULL;
4099 }
4100
William Lallemand4f45bb92017-10-30 20:08:51 +01004101 /* sh_ssl_sess (shared_block->data) is at the end of shared_block */
4102 first = sh_ssl_sess_first_block(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004103
William Lallemand4f45bb92017-10-30 20:08:51 +01004104 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 +01004105
William Lallemanda3c77cf2017-10-30 23:44:40 +01004106 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004107
4108 /* decode ASN1 session */
4109 p = data;
William Lallemand4f45bb92017-10-30 20:08:51 +01004110 sess = d2i_SSL_SESSION(NULL, (const unsigned char **)&p, first->len-sizeof(struct sh_ssl_sess_hdr));
William Lallemanded0b5ad2017-10-30 19:36:36 +01004111 /* Reset session id and session id contenxt */
4112 if (sess) {
4113 SSL_SESSION_set1_id(sess, key, key_len);
4114 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
4115 }
4116
4117 return sess;
4118}
4119
William Lallemand4f45bb92017-10-30 20:08:51 +01004120
William Lallemanded0b5ad2017-10-30 19:36:36 +01004121/* SSL callback used to signal session is no more used in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01004122void sh_ssl_sess_remove_cb(SSL_CTX *ctx, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004123{
William Lallemand4f45bb92017-10-30 20:08:51 +01004124 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01004125 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
4126 unsigned int sid_length;
4127 const unsigned char *sid_data;
4128 (void)ctx;
4129
4130 sid_data = SSL_SESSION_get_id(sess, &sid_length);
4131 /* tree key is zeros padded sessionid */
4132 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH) {
4133 memcpy(tmpkey, sid_data, sid_length);
4134 memset(tmpkey+sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - sid_length);
4135 sid_data = tmpkey;
4136 }
4137
William Lallemanda3c77cf2017-10-30 23:44:40 +01004138 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004139
4140 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004141 sh_ssl_sess = sh_ssl_sess_tree_lookup(sid_data);
4142 if (sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01004143 /* free session */
William Lallemand4f45bb92017-10-30 20:08:51 +01004144 sh_ssl_sess_tree_delete(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004145 }
4146
4147 /* unlock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01004148 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004149}
4150
4151/* Set session cache mode to server and disable openssl internal cache.
4152 * Set shared cache callbacks on an ssl context.
4153 * Shared context MUST be firstly initialized */
William Lallemand4f45bb92017-10-30 20:08:51 +01004154void ssl_set_shctx(SSL_CTX *ctx)
William Lallemanded0b5ad2017-10-30 19:36:36 +01004155{
4156 SSL_CTX_set_session_id_context(ctx, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
4157
4158 if (!ssl_shctx) {
4159 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
4160 return;
4161 }
4162
4163 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_SERVER |
4164 SSL_SESS_CACHE_NO_INTERNAL |
4165 SSL_SESS_CACHE_NO_AUTO_CLEAR);
4166
4167 /* Set callbacks */
William Lallemand4f45bb92017-10-30 20:08:51 +01004168 SSL_CTX_sess_set_new_cb(ctx, sh_ssl_sess_new_cb);
4169 SSL_CTX_sess_set_get_cb(ctx, sh_ssl_sess_get_cb);
4170 SSL_CTX_sess_set_remove_cb(ctx, sh_ssl_sess_remove_cb);
William Lallemanded0b5ad2017-10-30 19:36:36 +01004171}
William Lallemand7d42ef52020-07-06 11:41:30 +02004172
4173/*
4174 * https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format
4175 *
4176 * The format is:
4177 * * <Label> <space> <ClientRandom> <space> <Secret>
4178 * We only need to copy the secret as there is a sample fetch for the ClientRandom
4179 */
4180
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05004181#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02004182void SSL_CTX_keylog(const SSL *ssl, const char *line)
4183{
4184 struct ssl_keylog *keylog;
4185 char *lastarg = NULL;
4186 char *dst = NULL;
4187
4188 keylog = SSL_get_ex_data(ssl, ssl_keylog_index);
4189 if (!keylog)
4190 return;
4191
4192 lastarg = strrchr(line, ' ');
4193 if (lastarg == NULL || ++lastarg == NULL)
4194 return;
4195
4196 dst = pool_alloc(pool_head_ssl_keylog_str);
4197 if (!dst)
4198 return;
4199
4200 strncpy(dst, lastarg, SSL_KEYLOG_MAX_SECRET_SIZE-1);
4201 dst[SSL_KEYLOG_MAX_SECRET_SIZE-1] = '\0';
4202
4203 if (strncmp(line, "CLIENT_RANDOM ", strlen("CLIENT RANDOM ")) == 0) {
4204 if (keylog->client_random)
4205 goto error;
4206 keylog->client_random = dst;
4207
4208 } else if (strncmp(line, "CLIENT_EARLY_TRAFFIC_SECRET ", strlen("CLIENT_EARLY_TRAFFIC_SECRET ")) == 0) {
4209 if (keylog->client_early_traffic_secret)
4210 goto error;
4211 keylog->client_early_traffic_secret = dst;
4212
4213 } else if (strncmp(line, "CLIENT_HANDSHAKE_TRAFFIC_SECRET ", strlen("CLIENT_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4214 if(keylog->client_handshake_traffic_secret)
4215 goto error;
4216 keylog->client_handshake_traffic_secret = dst;
4217
4218 } else if (strncmp(line, "SERVER_HANDSHAKE_TRAFFIC_SECRET ", strlen("SERVER_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4219 if (keylog->server_handshake_traffic_secret)
4220 goto error;
4221 keylog->server_handshake_traffic_secret = dst;
4222
4223 } else if (strncmp(line, "CLIENT_TRAFFIC_SECRET_0 ", strlen("CLIENT_TRAFFIC_SECRET_0 ")) == 0) {
4224 if (keylog->client_traffic_secret_0)
4225 goto error;
4226 keylog->client_traffic_secret_0 = dst;
4227
4228 } else if (strncmp(line, "SERVER_TRAFFIC_SECRET_0 ", strlen("SERVER_TRAFFIC_SECRET_0 ")) == 0) {
4229 if (keylog->server_traffic_secret_0)
4230 goto error;
4231 keylog->server_traffic_secret_0 = dst;
4232
4233 } else if (strncmp(line, "EARLY_EXPORTER_SECRET ", strlen("EARLY_EXPORTER_SECRET ")) == 0) {
4234 if (keylog->early_exporter_secret)
4235 goto error;
4236 keylog->early_exporter_secret = dst;
4237
4238 } else if (strncmp(line, "EXPORTER_SECRET ", strlen("EXPORTER_SECRET ")) == 0) {
4239 if (keylog->exporter_secret)
4240 goto error;
4241 keylog->exporter_secret = dst;
4242 } else {
4243 goto error;
4244 }
4245
4246 return;
4247
4248error:
4249 pool_free(pool_head_ssl_keylog_str, dst);
4250
4251 return;
4252}
4253#endif
William Lallemanded0b5ad2017-10-30 19:36:36 +01004254
William Lallemand8b453912019-11-21 15:48:10 +01004255/*
4256 * This function applies the SSL configuration on a SSL_CTX
4257 * It returns an error code and fills the <err> buffer
4258 */
4259int 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 +01004260{
4261 struct proxy *curproxy = bind_conf->frontend;
4262 int cfgerr = 0;
4263 int verify = SSL_VERIFY_NONE;
Willy Tarreau5d4cafb2018-01-04 18:55:19 +01004264 struct ssl_bind_conf __maybe_unused *ssl_conf_cur;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004265 const char *conf_ciphers;
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004266#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004267 const char *conf_ciphersuites;
4268#endif
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004269 const char *conf_curves = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004270
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004271 if (ssl_conf) {
4272 struct tls_version_filter *conf_ssl_methods = &ssl_conf->ssl_methods;
4273 int i, min, max;
4274 int flags = MC_SSL_O_ALL;
4275
4276 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdet43664762017-08-09 18:26:20 +02004277 min = conf_ssl_methods->min ? conf_ssl_methods->min : bind_conf->ssl_conf.ssl_methods.min;
4278 max = conf_ssl_methods->max ? conf_ssl_methods->max : bind_conf->ssl_conf.ssl_methods.max;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004279 if (min)
4280 flags |= (methodVersions[min].flag - 1);
4281 if (max)
4282 flags |= ~((methodVersions[max].flag << 1) - 1);
4283 min = max = CONF_TLSV_NONE;
4284 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4285 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
4286 if (min)
4287 max = i;
4288 else
4289 min = max = i;
4290 }
4291 /* save real min/max */
4292 conf_ssl_methods->min = min;
4293 conf_ssl_methods->max = max;
4294 if (!min) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004295 memprintf(err, "%sProxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
4296 err && *err ? *err : "", bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004297 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004298 }
4299 }
4300
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004301 switch ((ssl_conf && ssl_conf->verify) ? ssl_conf->verify : bind_conf->ssl_conf.verify) {
Emeric Brun850efd52014-01-29 12:24:34 +01004302 case SSL_SOCK_VERIFY_NONE:
4303 verify = SSL_VERIFY_NONE;
4304 break;
4305 case SSL_SOCK_VERIFY_OPTIONAL:
4306 verify = SSL_VERIFY_PEER;
4307 break;
4308 case SSL_SOCK_VERIFY_REQUIRED:
4309 verify = SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
4310 break;
4311 }
4312 SSL_CTX_set_verify(ctx, verify, ssl_sock_bind_verifycbk);
4313 if (verify & SSL_VERIFY_PEER) {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004314 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 +01004315 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 +01004316 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 +01004317 if (ca_file || ca_verify_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004318 /* set CAfile to verify */
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004319 if (ca_file && !ssl_set_verify_locations_file(ctx, ca_file)) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004320 memprintf(err, "%sProxy '%s': unable to set CA file '%s' for bind '%s' at [%s:%d].\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01004321 err && *err ? *err : "", curproxy->id, ca_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004322 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004323 }
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004324 if (ca_verify_file && !ssl_set_verify_locations_file(ctx, ca_verify_file)) {
4325 memprintf(err, "%sProxy '%s': unable to set CA-no-names file '%s' for bind '%s' at [%s:%d].\n",
4326 err && *err ? *err : "", curproxy->id, ca_verify_file, bind_conf->arg, bind_conf->file, bind_conf->line);
4327 cfgerr |= ERR_ALERT | ERR_FATAL;
4328 }
4329 if (ca_file && !((ssl_conf && ssl_conf->no_ca_names) || bind_conf->ssl_conf.no_ca_names)) {
Emmanuel Hocdet174dfe52017-07-28 15:01:05 +02004330 /* set CA names for client cert request, function returns void */
Emmanuel Hocdet129d3282019-10-24 18:08:51 +02004331 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 +02004332 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004333 }
Emeric Brun850efd52014-01-29 12:24:34 +01004334 else {
Tim Duesterhus93128532019-11-23 23:45:10 +01004335 memprintf(err, "%sProxy '%s': verify is enabled but no CA file specified for bind '%s' at [%s:%d].\n",
4336 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004337 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun850efd52014-01-29 12:24:34 +01004338 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004339#ifdef X509_V_FLAG_CRL_CHECK
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004340 if (crl_file) {
Emeric Brund94b3fe2012-09-20 18:23:56 +02004341 X509_STORE *store = SSL_CTX_get_cert_store(ctx);
4342
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004343 if (!ssl_set_cert_crl_file(store, crl_file)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004344 memprintf(err, "%sProxy '%s': unable to configure CRL file '%s' for bind '%s' at [%s:%d].\n",
4345 err && *err ? *err : "", curproxy->id, crl_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004346 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004347 }
Emeric Brun561e5742012-10-02 15:20:55 +02004348 else {
4349 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4350 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004351 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004352#endif
Emeric Brun644cde02012-12-14 11:21:13 +01004353 ERR_clear_error();
Emeric Brund94b3fe2012-09-20 18:23:56 +02004354 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004355#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
Nenad Merdanovic146defa2015-05-09 08:46:00 +02004356 if(bind_conf->keys_ref) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004357 if (!SSL_CTX_set_tlsext_ticket_key_cb(ctx, ssl_tlsext_ticket_key_cb)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004358 memprintf(err, "%sProxy '%s': unable to set callback for TLS ticket validation for bind '%s' at [%s:%d].\n",
4359 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004360 cfgerr |= ERR_ALERT | ERR_FATAL;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004361 }
4362 }
4363#endif
4364
William Lallemand4f45bb92017-10-30 20:08:51 +01004365 ssl_set_shctx(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004366 conf_ciphers = (ssl_conf && ssl_conf->ciphers) ? ssl_conf->ciphers : bind_conf->ssl_conf.ciphers;
4367 if (conf_ciphers &&
4368 !SSL_CTX_set_cipher_list(ctx, conf_ciphers)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004369 memprintf(err, "%sProxy '%s': unable to set SSL cipher list to '%s' for bind '%s' at [%s:%d].\n",
4370 err && *err ? *err : "", curproxy->id, conf_ciphers, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004371 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004372 }
4373
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004374#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004375 conf_ciphersuites = (ssl_conf && ssl_conf->ciphersuites) ? ssl_conf->ciphersuites : bind_conf->ssl_conf.ciphersuites;
4376 if (conf_ciphersuites &&
4377 !SSL_CTX_set_ciphersuites(ctx, conf_ciphersuites)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004378 memprintf(err, "%sProxy '%s': unable to set TLS 1.3 cipher suites to '%s' for bind '%s' at [%s:%d].\n",
4379 err && *err ? *err : "", curproxy->id, conf_ciphersuites, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004380 cfgerr |= ERR_ALERT | ERR_FATAL;
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004381 }
4382#endif
4383
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01004384#ifndef OPENSSL_NO_DH
Remi Gacogne47783ef2015-05-29 15:53:22 +02004385 /* If tune.ssl.default-dh-param has not been set,
4386 neither has ssl-default-dh-file and no static DH
4387 params were in the certificate file. */
Willy Tarreauef934602016-12-22 23:12:01 +01004388 if (global_ssl.default_dh_param == 0 &&
Remi Gacogne47783ef2015-05-29 15:53:22 +02004389 global_dh == NULL &&
Remi Gacogne4f902b82015-05-28 16:23:00 +02004390 (ssl_dh_ptr_index == -1 ||
4391 SSL_CTX_get_ex_data(ctx, ssl_dh_ptr_index) == NULL)) {
Willy Tarreau3ba77d22020-05-08 09:31:18 +02004392 /* default to dh-param 2048 */
4393 global_ssl.default_dh_param = 2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004394 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004395
Willy Tarreauef934602016-12-22 23:12:01 +01004396 if (global_ssl.default_dh_param >= 1024) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004397 if (local_dh_1024 == NULL) {
4398 local_dh_1024 = ssl_get_dh_1024();
4399 }
Willy Tarreauef934602016-12-22 23:12:01 +01004400 if (global_ssl.default_dh_param >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004401 if (local_dh_2048 == NULL) {
4402 local_dh_2048 = ssl_get_dh_2048();
4403 }
Willy Tarreauef934602016-12-22 23:12:01 +01004404 if (global_ssl.default_dh_param >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004405 if (local_dh_4096 == NULL) {
4406 local_dh_4096 = ssl_get_dh_4096();
4407 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004408 }
4409 }
4410 }
4411#endif /* OPENSSL_NO_DH */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004412
Emeric Brunfc0421f2012-09-07 17:30:07 +02004413 SSL_CTX_set_info_callback(ctx, ssl_sock_infocbk);
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004414#if HA_OPENSSL_VERSION_NUMBER >= 0x00907000L
Emeric Brun29f037d2014-04-25 19:05:36 +02004415 SSL_CTX_set_msg_callback(ctx, ssl_sock_msgcbk);
Willy Tarreau5cbe4ef2014-05-08 22:45:11 +02004416#endif
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05004417#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02004418 SSL_CTX_set_keylog_callback(ctx, SSL_CTX_keylog);
4419#endif
Emeric Brun29f037d2014-04-25 19:05:36 +02004420
Bernard Spil13c53f82018-02-15 13:34:58 +01004421#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004422 ssl_conf_cur = NULL;
4423 if (ssl_conf && ssl_conf->npn_str)
4424 ssl_conf_cur = ssl_conf;
4425 else if (bind_conf->ssl_conf.npn_str)
4426 ssl_conf_cur = &bind_conf->ssl_conf;
4427 if (ssl_conf_cur)
4428 SSL_CTX_set_next_protos_advertised_cb(ctx, ssl_sock_advertise_npn_protos, ssl_conf_cur);
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02004429#endif
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01004430#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004431 ssl_conf_cur = NULL;
4432 if (ssl_conf && ssl_conf->alpn_str)
4433 ssl_conf_cur = ssl_conf;
4434 else if (bind_conf->ssl_conf.alpn_str)
4435 ssl_conf_cur = &bind_conf->ssl_conf;
4436 if (ssl_conf_cur)
4437 SSL_CTX_set_alpn_select_cb(ctx, ssl_sock_advertise_alpn_protos, ssl_conf_cur);
Willy Tarreauab861d32013-04-02 02:30:41 +02004438#endif
Ilya Shipitsin0aa8c292020-11-04 00:39:07 +05004439#if defined(SSL_CTX_set1_curves_list)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004440 conf_curves = (ssl_conf && ssl_conf->curves) ? ssl_conf->curves : bind_conf->ssl_conf.curves;
4441 if (conf_curves) {
4442 if (!SSL_CTX_set1_curves_list(ctx, conf_curves)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004443 memprintf(err, "%sProxy '%s': unable to set SSL curves list to '%s' for bind '%s' at [%s:%d].\n",
4444 err && *err ? *err : "", curproxy->id, conf_curves, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004445 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004446 }
Emmanuel Hocdeta52bb152017-03-20 11:11:49 +01004447 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004448 }
4449#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004450#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004451 if (!conf_curves) {
Emeric Brun2b58d042012-09-20 17:10:03 +02004452 int i;
4453 EC_KEY *ecdh;
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004454#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004455 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
Olivier Houchardc2aae742017-09-22 18:26:28 +02004456 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4457 NULL);
4458
4459 if (ecdhe == NULL) {
Eric Salama3c8bde82019-11-20 11:33:40 +01004460 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Olivier Houchardc2aae742017-09-22 18:26:28 +02004461 return cfgerr;
4462 }
4463#else
4464 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
4465 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4466 ECDHE_DEFAULT_CURVE);
4467#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004468
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004469 i = OBJ_sn2nid(ecdhe);
Emeric Brun2b58d042012-09-20 17:10:03 +02004470 if (!i || ((ecdh = EC_KEY_new_by_curve_name(i)) == NULL)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004471 memprintf(err, "%sProxy '%s': unable to set elliptic named curve to '%s' for bind '%s' at [%s:%d].\n",
4472 err && *err ? *err : "", curproxy->id, ecdhe, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004473 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun2b58d042012-09-20 17:10:03 +02004474 }
4475 else {
4476 SSL_CTX_set_tmp_ecdh(ctx, ecdh);
4477 EC_KEY_free(ecdh);
4478 }
4479 }
4480#endif
4481
Emeric Brunfc0421f2012-09-07 17:30:07 +02004482 return cfgerr;
4483}
4484
Evan Broderbe554312013-06-27 00:05:25 -07004485static int ssl_sock_srv_hostcheck(const char *pattern, const char *hostname)
4486{
4487 const char *pattern_wildcard, *pattern_left_label_end, *hostname_left_label_end;
4488 size_t prefixlen, suffixlen;
4489
4490 /* Trivial case */
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004491 if (strcasecmp(pattern, hostname) == 0)
Evan Broderbe554312013-06-27 00:05:25 -07004492 return 1;
4493
Evan Broderbe554312013-06-27 00:05:25 -07004494 /* The rest of this logic is based on RFC 6125, section 6.4.3
4495 * (http://tools.ietf.org/html/rfc6125#section-6.4.3) */
4496
Emeric Bruna848dae2013-10-08 11:27:28 +02004497 pattern_wildcard = NULL;
4498 pattern_left_label_end = pattern;
4499 while (*pattern_left_label_end != '.') {
4500 switch (*pattern_left_label_end) {
4501 case 0:
4502 /* End of label not found */
4503 return 0;
4504 case '*':
4505 /* If there is more than one wildcards */
4506 if (pattern_wildcard)
4507 return 0;
4508 pattern_wildcard = pattern_left_label_end;
4509 break;
4510 }
4511 pattern_left_label_end++;
4512 }
4513
4514 /* If it's not trivial and there is no wildcard, it can't
4515 * match */
4516 if (!pattern_wildcard)
Evan Broderbe554312013-06-27 00:05:25 -07004517 return 0;
4518
4519 /* Make sure all labels match except the leftmost */
4520 hostname_left_label_end = strchr(hostname, '.');
4521 if (!hostname_left_label_end
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004522 || strcasecmp(pattern_left_label_end, hostname_left_label_end) != 0)
Evan Broderbe554312013-06-27 00:05:25 -07004523 return 0;
4524
4525 /* Make sure the leftmost label of the hostname is long enough
4526 * that the wildcard can match */
Emeric Brun369da852013-10-08 11:39:35 +02004527 if (hostname_left_label_end - hostname < (pattern_left_label_end - pattern) - 1)
Evan Broderbe554312013-06-27 00:05:25 -07004528 return 0;
4529
4530 /* Finally compare the string on either side of the
4531 * wildcard */
4532 prefixlen = pattern_wildcard - pattern;
4533 suffixlen = pattern_left_label_end - (pattern_wildcard + 1);
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004534 if ((prefixlen && (strncasecmp(pattern, hostname, prefixlen) != 0))
4535 || (suffixlen && (strncasecmp(pattern_wildcard + 1, hostname_left_label_end - suffixlen, suffixlen) != 0)))
Evan Broderbe554312013-06-27 00:05:25 -07004536 return 0;
4537
4538 return 1;
4539}
4540
4541static int ssl_sock_srv_verifycbk(int ok, X509_STORE_CTX *ctx)
4542{
4543 SSL *ssl;
4544 struct connection *conn;
Olivier Houchard66ab4982019-02-26 18:37:15 +01004545 struct ssl_sock_ctx *ssl_ctx;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004546 const char *servername;
Willy Tarreau71d058c2017-07-26 20:09:56 +02004547 const char *sni;
Evan Broderbe554312013-06-27 00:05:25 -07004548
4549 int depth;
4550 X509 *cert;
4551 STACK_OF(GENERAL_NAME) *alt_names;
4552 int i;
4553 X509_NAME *cert_subject;
4554 char *str;
4555
4556 if (ok == 0)
4557 return ok;
4558
4559 ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02004560 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard66ab4982019-02-26 18:37:15 +01004561 ssl_ctx = conn->xprt_ctx;
Evan Broderbe554312013-06-27 00:05:25 -07004562
Willy Tarreauad92a9a2017-07-28 11:38:41 +02004563 /* We're checking if the provided hostnames match the desired one. The
4564 * desired hostname comes from the SNI we presented if any, or if not
4565 * provided then it may have been explicitly stated using a "verifyhost"
4566 * directive. If neither is set, we don't care about the name so the
4567 * verification is OK.
Willy Tarreau2ab88672017-07-05 18:23:03 +02004568 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01004569 servername = SSL_get_servername(ssl_ctx->ssl, TLSEXT_NAMETYPE_host_name);
Willy Tarreau71d058c2017-07-26 20:09:56 +02004570 sni = servername;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004571 if (!servername) {
Willy Tarreau07d94e42018-09-20 10:57:52 +02004572 servername = __objt_server(conn->target)->ssl_ctx.verify_host;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004573 if (!servername)
4574 return ok;
4575 }
Evan Broderbe554312013-06-27 00:05:25 -07004576
4577 /* We only need to verify the CN on the actual server cert,
4578 * not the indirect CAs */
4579 depth = X509_STORE_CTX_get_error_depth(ctx);
4580 if (depth != 0)
4581 return ok;
4582
4583 /* At this point, the cert is *not* OK unless we can find a
4584 * hostname match */
4585 ok = 0;
4586
4587 cert = X509_STORE_CTX_get_current_cert(ctx);
4588 /* It seems like this might happen if verify peer isn't set */
4589 if (!cert)
4590 return ok;
4591
4592 alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
4593 if (alt_names) {
4594 for (i = 0; !ok && i < sk_GENERAL_NAME_num(alt_names); i++) {
4595 GENERAL_NAME *name = sk_GENERAL_NAME_value(alt_names, i);
4596 if (name->type == GEN_DNS) {
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004597#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Emeric Bruna33410c2013-09-17 15:47:48 +02004598 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.ia5) >= 0) {
4599#else
Evan Broderbe554312013-06-27 00:05:25 -07004600 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
Emeric Bruna33410c2013-09-17 15:47:48 +02004601#endif
Evan Broderbe554312013-06-27 00:05:25 -07004602 ok = ssl_sock_srv_hostcheck(str, servername);
4603 OPENSSL_free(str);
4604 }
4605 }
4606 }
Emeric Brun4ad50a42013-09-17 15:19:54 +02004607 sk_GENERAL_NAME_pop_free(alt_names, GENERAL_NAME_free);
Evan Broderbe554312013-06-27 00:05:25 -07004608 }
4609
4610 cert_subject = X509_get_subject_name(cert);
4611 i = -1;
4612 while (!ok && (i = X509_NAME_get_index_by_NID(cert_subject, NID_commonName, i)) != -1) {
4613 X509_NAME_ENTRY *entry = X509_NAME_get_entry(cert_subject, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02004614 ASN1_STRING *value;
4615 value = X509_NAME_ENTRY_get_data(entry);
4616 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
Evan Broderbe554312013-06-27 00:05:25 -07004617 ok = ssl_sock_srv_hostcheck(str, servername);
4618 OPENSSL_free(str);
4619 }
4620 }
4621
Willy Tarreau71d058c2017-07-26 20:09:56 +02004622 /* report the mismatch and indicate if SNI was used or not */
4623 if (!ok && !conn->err_code)
4624 conn->err_code = sni ? CO_ER_SSL_MISMATCH_SNI : CO_ER_SSL_MISMATCH;
Evan Broderbe554312013-06-27 00:05:25 -07004625 return ok;
4626}
4627
Emeric Brun94324a42012-10-11 14:00:19 +02004628/* prepare ssl context from servers options. Returns an error count */
Willy Tarreau03209342016-12-22 17:08:28 +01004629int ssl_sock_prepare_srv_ctx(struct server *srv)
Emeric Brun94324a42012-10-11 14:00:19 +02004630{
Willy Tarreau03209342016-12-22 17:08:28 +01004631 struct proxy *curproxy = srv->proxy;
Emeric Brun94324a42012-10-11 14:00:19 +02004632 int cfgerr = 0;
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004633 SSL_CTX *ctx = srv->ssl_ctx.ctx;
Emeric Brun94324a42012-10-11 14:00:19 +02004634
Thierry Fournier383085f2013-01-24 14:15:43 +01004635 /* Make sure openssl opens /dev/urandom before the chroot */
4636 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004637 ha_alert("OpenSSL random data generator initialization failed.\n");
Thierry Fournier383085f2013-01-24 14:15:43 +01004638 cfgerr++;
4639 }
4640
Willy Tarreaufce03112015-01-15 21:32:40 +01004641 /* Automatic memory computations need to know we use SSL there */
4642 global.ssl_used_backend = 1;
4643
4644 /* Initiate SSL context for current server */
Emeric Brun821bb9b2017-06-15 16:37:39 +02004645 if (!srv->ssl_ctx.reused_sess) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01004646 if ((srv->ssl_ctx.reused_sess = calloc(1, global.nbthread*sizeof(*srv->ssl_ctx.reused_sess))) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004647 ha_alert("Proxy '%s', server '%s' [%s:%d] out of memory.\n",
4648 curproxy->id, srv->id,
4649 srv->conf.file, srv->conf.line);
Emeric Brun821bb9b2017-06-15 16:37:39 +02004650 cfgerr++;
4651 return cfgerr;
4652 }
4653 }
Christopher Fauletf61f33a2020-03-27 18:55:49 +01004654 if (srv->use_ssl == 1)
Emeric Brun94324a42012-10-11 14:00:19 +02004655 srv->xprt = &ssl_sock;
Emeric Brun94324a42012-10-11 14:00:19 +02004656
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004657 /* The context will be uninitialized if there wasn't any "cert" option
4658 * in the server line. */
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004659 if (!ctx) {
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004660 ctx = SSL_CTX_new(SSLv23_client_method());
4661 if (!ctx) {
4662 ha_alert("config : %s '%s', server '%s': unable to allocate ssl context.\n",
4663 proxy_type_str(curproxy), curproxy->id,
4664 srv->id);
4665 cfgerr++;
4666 return cfgerr;
4667 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004668
Remi Tricot-Le Bretond817dc72021-01-25 17:19:43 +01004669 srv->ssl_ctx.ctx = ctx;
4670 }
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004671
4672 cfgerr += ssl_sock_prepare_srv_ssl_ctx(srv, srv->ssl_ctx.ctx);
4673
4674 return cfgerr;
4675}
4676
4677
4678/* Initialize an SSL context that will be used on the backend side.
4679 * Returns an error count.
4680 */
4681int ssl_sock_prepare_srv_ssl_ctx(const struct server *srv, SSL_CTX *ctx)
4682{
4683 struct proxy *curproxy = srv->proxy;
4684 int cfgerr = 0;
4685 long options =
4686 SSL_OP_ALL | /* all known workarounds for bugs */
4687 SSL_OP_NO_SSLv2 |
4688 SSL_OP_NO_COMPRESSION;
4689 long mode =
4690 SSL_MODE_ENABLE_PARTIAL_WRITE |
4691 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
4692 SSL_MODE_RELEASE_BUFFERS |
4693 SSL_MODE_SMALL_BUFFERS;
4694 int verify = SSL_VERIFY_NONE;
4695 const struct tls_version_filter *conf_ssl_methods = &srv->ssl_ctx.methods;
4696 int i, min, max, hole;
4697 int flags = MC_SSL_O_ALL;
4698
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004699 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01004700 ha_warning("config : %s '%s': no-sslv3/no-tlsv1x are ignored for server '%s'. "
4701 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4702 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004703 else
4704 flags = conf_ssl_methods->flags;
4705
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004706 /* Real min and max should be determinate with configuration and openssl's capabilities */
4707 if (conf_ssl_methods->min)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004708 flags |= (methodVersions[conf_ssl_methods->min].flag - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004709 if (conf_ssl_methods->max)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004710 flags |= ~((methodVersions[conf_ssl_methods->max].flag << 1) - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004711
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004712 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004713 min = max = CONF_TLSV_NONE;
4714 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004715 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004716 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004717 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004718 if (min) {
4719 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004720 ha_warning("config : %s '%s': SSL/TLS versions range not contiguous for server '%s'. "
4721 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4722 proxy_type_str(curproxy), curproxy->id, srv->id,
4723 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004724 hole = 0;
4725 }
4726 max = i;
4727 }
4728 else {
4729 min = max = i;
4730 }
4731 }
4732 else {
4733 if (min)
4734 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004735 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004736 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004737 ha_alert("config : %s '%s': all SSL/TLS versions are disabled for server '%s'.\n",
4738 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004739 cfgerr += 1;
4740 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004741
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004742#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004743 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08004744 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004745 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004746 methodVersions[min].ctx_set_version(ctx, SET_CLIENT);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004747 else
4748 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4749 if (flags & methodVersions[i].flag)
4750 options |= methodVersions[i].option;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004751#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004752 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004753 methodVersions[min].ctx_set_version(ctx, SET_MIN);
4754 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004755#endif
4756
4757 if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLS_TICKETS)
4758 options |= SSL_OP_NO_TICKET;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004759 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004760
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05004761#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004762 if (global_ssl.async)
4763 mode |= SSL_MODE_ASYNC;
4764#endif
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004765 SSL_CTX_set_mode(ctx, mode);
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004766
Emeric Brun850efd52014-01-29 12:24:34 +01004767 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
4768 verify = SSL_VERIFY_PEER;
Emeric Brun850efd52014-01-29 12:24:34 +01004769 switch (srv->ssl_ctx.verify) {
4770 case SSL_SOCK_VERIFY_NONE:
4771 verify = SSL_VERIFY_NONE;
4772 break;
4773 case SSL_SOCK_VERIFY_REQUIRED:
4774 verify = SSL_VERIFY_PEER;
4775 break;
4776 }
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004777 SSL_CTX_set_verify(ctx, verify,
Willy Tarreau2ab88672017-07-05 18:23:03 +02004778 (srv->ssl_ctx.verify_host || (verify & SSL_VERIFY_PEER)) ? ssl_sock_srv_verifycbk : NULL);
Emeric Brun850efd52014-01-29 12:24:34 +01004779 if (verify & SSL_VERIFY_PEER) {
Emeric Brunef42d922012-10-11 16:11:36 +02004780 if (srv->ssl_ctx.ca_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004781 /* set CAfile to verify */
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004782 if (!ssl_set_verify_locations_file(ctx, srv->ssl_ctx.ca_file)) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004783 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to set CA file '%s'.\n",
Christopher Faulet767a84b2017-11-24 16:50:31 +01004784 curproxy->id, srv->id,
4785 srv->conf.file, srv->conf.line, srv->ssl_ctx.ca_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004786 cfgerr++;
4787 }
4788 }
Emeric Brun850efd52014-01-29 12:24:34 +01004789 else {
4790 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
Christopher Faulet767a84b2017-11-24 16:50:31 +01004791 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",
4792 curproxy->id, srv->id,
4793 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004794 else
Christopher Faulet767a84b2017-11-24 16:50:31 +01004795 ha_alert("Proxy '%s', server '%s' [%s:%d] verify is enabled but no CA file specified.\n",
4796 curproxy->id, srv->id,
4797 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004798 cfgerr++;
4799 }
Emeric Brunef42d922012-10-11 16:11:36 +02004800#ifdef X509_V_FLAG_CRL_CHECK
4801 if (srv->ssl_ctx.crl_file) {
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004802 X509_STORE *store = SSL_CTX_get_cert_store(ctx);
Emeric Brunef42d922012-10-11 16:11:36 +02004803
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004804 if (!ssl_set_cert_crl_file(store, srv->ssl_ctx.crl_file)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004805 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to configure CRL file '%s'.\n",
4806 curproxy->id, srv->id,
4807 srv->conf.file, srv->conf.line, srv->ssl_ctx.crl_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004808 cfgerr++;
4809 }
4810 else {
4811 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4812 }
4813 }
4814#endif
4815 }
4816
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004817 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_NO_INTERNAL_STORE);
4818 SSL_CTX_sess_set_new_cb(ctx, ssl_sess_new_srv_cb);
Emeric Brun94324a42012-10-11 14:00:19 +02004819 if (srv->ssl_ctx.ciphers &&
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004820 !SSL_CTX_set_cipher_list(ctx, srv->ssl_ctx.ciphers)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004821 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set SSL cipher list to '%s'.\n",
4822 curproxy->id, srv->id,
4823 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphers);
Emeric Brun94324a42012-10-11 14:00:19 +02004824 cfgerr++;
4825 }
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004826
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004827#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004828 if (srv->ssl_ctx.ciphersuites &&
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004829 !SSL_CTX_set_ciphersuites(ctx, srv->ssl_ctx.ciphersuites)) {
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004830 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set TLS 1.3 cipher suites to '%s'.\n",
4831 curproxy->id, srv->id,
4832 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphersuites);
4833 cfgerr++;
4834 }
4835#endif
Olivier Houchardc7566002018-11-20 23:33:50 +01004836#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
4837 if (srv->ssl_ctx.npn_str)
Remi Tricot-Le Breton442b7f22021-01-25 17:19:41 +01004838 SSL_CTX_set_next_proto_select_cb(ctx, ssl_sock_srv_select_protos, (struct server*)srv);
Olivier Houchardc7566002018-11-20 23:33:50 +01004839#endif
4840#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
4841 if (srv->ssl_ctx.alpn_str)
4842 SSL_CTX_set_alpn_protos(ctx, (unsigned char *)srv->ssl_ctx.alpn_str, srv->ssl_ctx.alpn_len);
4843#endif
4844
Emeric Brun94324a42012-10-11 14:00:19 +02004845
4846 return cfgerr;
4847}
4848
Frédéric Lécailleec216522020-11-23 14:33:30 +01004849/*
4850 * Create an initial CTX used to start the SSL connections.
4851 * May be used by QUIC xprt which makes usage of SSL sessions initialized from SSL_CTXs.
4852 * Returns 0 if succeeded, or something >0 if not.
4853 */
4854#ifdef USE_QUIC
4855static int ssl_initial_ctx(struct bind_conf *bind_conf)
4856{
4857 if (bind_conf->xprt == xprt_get(XPRT_QUIC))
4858 return ssl_quic_initial_ctx(bind_conf);
4859 else
4860 return ssl_sock_initial_ctx(bind_conf);
4861}
4862#else
4863static int ssl_initial_ctx(struct bind_conf *bind_conf)
4864{
4865 return ssl_sock_initial_ctx(bind_conf);
4866}
4867#endif
4868
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004869/* Walks down the two trees in bind_conf and prepares all certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02004870 * be NULL, in which case nothing is done. Returns the number of errors
4871 * encountered.
4872 */
Willy Tarreau03209342016-12-22 17:08:28 +01004873int ssl_sock_prepare_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02004874{
4875 struct ebmb_node *node;
4876 struct sni_ctx *sni;
4877 int err = 0;
William Lallemand8b453912019-11-21 15:48:10 +01004878 int errcode = 0;
4879 char *errmsg = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004880
Willy Tarreaufce03112015-01-15 21:32:40 +01004881 /* Automatic memory computations need to know we use SSL there */
4882 global.ssl_used_frontend = 1;
4883
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004884 /* Make sure openssl opens /dev/urandom before the chroot */
4885 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004886 ha_alert("OpenSSL random data generator initialization failed.\n");
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004887 err++;
4888 }
4889 /* Create initial_ctx used to start the ssl connection before do switchctx */
4890 if (!bind_conf->initial_ctx) {
Frédéric Lécailleec216522020-11-23 14:33:30 +01004891 err += ssl_initial_ctx(bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004892 /* It should not be necessary to call this function, but it's
4893 necessary first to check and move all initialisation related
Frédéric Lécailleec216522020-11-23 14:33:30 +01004894 to initial_ctx in ssl_initial_ctx. */
William Lallemand8b453912019-11-21 15:48:10 +01004895 errcode |= ssl_sock_prepare_ctx(bind_conf, NULL, bind_conf->initial_ctx, &errmsg);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004896 }
Emeric Brun0bed9942014-10-30 19:25:24 +01004897 if (bind_conf->default_ctx)
William Lallemand8b453912019-11-21 15:48:10 +01004898 errcode |= ssl_sock_prepare_ctx(bind_conf, bind_conf->default_ssl_conf, bind_conf->default_ctx, &errmsg);
Emeric Brun0bed9942014-10-30 19:25:24 +01004899
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004900 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004901 while (node) {
4902 sni = ebmb_entry(node, struct sni_ctx, name);
Emeric Brun0bed9942014-10-30 19:25:24 +01004903 if (!sni->order && sni->ctx != bind_conf->default_ctx)
4904 /* only initialize the CTX on its first occurrence and
4905 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004906 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004907 node = ebmb_next(node);
4908 }
4909
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004910 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004911 while (node) {
4912 sni = ebmb_entry(node, struct sni_ctx, name);
William Lallemand8b453912019-11-21 15:48:10 +01004913 if (!sni->order && sni->ctx != bind_conf->default_ctx) {
Emeric Brun0bed9942014-10-30 19:25:24 +01004914 /* only initialize the CTX on its first occurrence and
4915 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004916 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
4917 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02004918 node = ebmb_next(node);
4919 }
William Lallemand8b453912019-11-21 15:48:10 +01004920
4921 if (errcode & ERR_WARN) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004922 ha_warning("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004923 } else if (errcode & ERR_CODE) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004924 ha_alert("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004925 err++;
4926 }
4927
4928 free(errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004929 return err;
4930}
4931
Willy Tarreau55d37912016-12-21 23:38:39 +01004932/* Prepares all the contexts for a bind_conf and allocates the shared SSL
4933 * context if needed. Returns < 0 on error, 0 on success. The warnings and
4934 * alerts are directly emitted since the rest of the stack does it below.
4935 */
4936int ssl_sock_prepare_bind_conf(struct bind_conf *bind_conf)
4937{
4938 struct proxy *px = bind_conf->frontend;
4939 int alloc_ctx;
4940 int err;
4941
4942 if (!bind_conf->is_ssl) {
4943 if (bind_conf->default_ctx) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004944 ha_warning("Proxy '%s': A certificate was specified but SSL was not enabled on bind '%s' at [%s:%d] (use 'ssl').\n",
4945 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Willy Tarreau55d37912016-12-21 23:38:39 +01004946 }
4947 return 0;
4948 }
4949 if (!bind_conf->default_ctx) {
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02004950 if (bind_conf->strict_sni && !bind_conf->generate_certs) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004951 ha_warning("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d], ssl connections will fail (use 'crt').\n",
4952 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02004953 }
4954 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004955 ha_alert("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d] (use 'crt').\n",
4956 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02004957 return -1;
4958 }
Willy Tarreau55d37912016-12-21 23:38:39 +01004959 }
William Lallemandc61c0b32017-12-04 18:46:39 +01004960 if (!ssl_shctx && global.tune.sslcachesize) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01004961 alloc_ctx = shctx_init(&ssl_shctx, global.tune.sslcachesize,
Frédéric Lécailleb7838af2018-10-22 16:21:39 +02004962 sizeof(struct sh_ssl_sess_hdr) + SHSESS_BLOCK_MIN_SIZE, -1,
William Lallemandc3cd35f2017-11-28 11:04:43 +01004963 sizeof(*sh_ssl_sess_tree),
4964 ((global.nbthread > 1) || (!global_ssl.private_cache && (global.nbproc > 1))) ? 1 : 0);
Frédéric Lécaille4c8aa112018-10-25 20:22:46 +02004965 if (alloc_ctx <= 0) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01004966 if (alloc_ctx == SHCTX_E_INIT_LOCK)
4967 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");
4968 else
4969 ha_alert("Unable to allocate SSL session cache.\n");
4970 return -1;
4971 }
4972 /* free block callback */
4973 ssl_shctx->free_block = sh_ssl_sess_free_blocks;
4974 /* init the root tree within the extra space */
4975 sh_ssl_sess_tree = (void *)ssl_shctx + sizeof(struct shared_context);
4976 *sh_ssl_sess_tree = EB_ROOT_UNIQUE;
Willy Tarreau55d37912016-12-21 23:38:39 +01004977 }
Willy Tarreau55d37912016-12-21 23:38:39 +01004978 err = 0;
4979 /* initialize all certificate contexts */
4980 err += ssl_sock_prepare_all_ctx(bind_conf);
4981
4982 /* initialize CA variables if the certificates generation is enabled */
4983 err += ssl_sock_load_ca(bind_conf);
4984
4985 return -err;
4986}
Christopher Faulet77fe80c2015-07-29 13:02:40 +02004987
4988/* release ssl context allocated for servers. */
4989void ssl_sock_free_srv_ctx(struct server *srv)
4990{
Olivier Houchardc7566002018-11-20 23:33:50 +01004991#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
4992 if (srv->ssl_ctx.alpn_str)
4993 free(srv->ssl_ctx.alpn_str);
4994#endif
Lukas Tribusda95fd92018-11-25 13:21:27 +01004995#ifdef OPENSSL_NPN_NEGOTIATED
Olivier Houchardc7566002018-11-20 23:33:50 +01004996 if (srv->ssl_ctx.npn_str)
4997 free(srv->ssl_ctx.npn_str);
Lukas Tribus7706b852018-11-26 22:57:17 +01004998#endif
Christopher Faulet58feb492020-10-07 13:20:23 +02004999 if (srv->ssl_ctx.reused_sess) {
5000 int i;
5001
5002 for (i = 0; i < global.nbthread; i++)
5003 free(srv->ssl_ctx.reused_sess[i].ptr);
5004 free(srv->ssl_ctx.reused_sess);
5005 }
5006
Christopher Faulet77fe80c2015-07-29 13:02:40 +02005007 if (srv->ssl_ctx.ctx)
5008 SSL_CTX_free(srv->ssl_ctx.ctx);
5009}
5010
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005011/* Walks down the two trees in bind_conf and frees all the certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02005012 * be NULL, in which case nothing is done. The default_ctx is nullified too.
5013 */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005014void ssl_sock_free_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02005015{
5016 struct ebmb_node *node, *back;
5017 struct sni_ctx *sni;
5018
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005019 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005020 while (node) {
5021 sni = ebmb_entry(node, struct sni_ctx, name);
5022 back = ebmb_next(node);
5023 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02005024 SSL_CTX_free(sni->ctx);
William Lallemandb2408692020-06-24 09:54:29 +02005025 LIST_DEL(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005026 free(sni);
5027 node = back;
5028 }
5029
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005030 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005031 while (node) {
5032 sni = ebmb_entry(node, struct sni_ctx, name);
5033 back = ebmb_next(node);
5034 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02005035 SSL_CTX_free(sni->ctx);
William Lallemandb2408692020-06-24 09:54:29 +02005036 LIST_DEL(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02005037 free(sni);
5038 node = back;
5039 }
William Lallemandb2408692020-06-24 09:54:29 +02005040
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01005041 SSL_CTX_free(bind_conf->initial_ctx);
5042 bind_conf->initial_ctx = NULL;
William Lallemand02e19a52020-04-08 16:11:26 +02005043 SSL_CTX_free(bind_conf->default_ctx);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02005044 bind_conf->default_ctx = NULL;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01005045 bind_conf->default_ssl_conf = NULL;
Emeric Brune1f38db2012-09-03 20:36:47 +02005046}
William Lallemandb2408692020-06-24 09:54:29 +02005047
5048
5049void ssl_sock_deinit()
5050{
5051 crtlist_deinit(); /* must be free'd before the ckchs */
5052 ckch_deinit();
5053}
5054REGISTER_POST_DEINIT(ssl_sock_deinit);
Emeric Brune1f38db2012-09-03 20:36:47 +02005055
Willy Tarreau795cdab2016-12-22 17:30:54 +01005056/* Destroys all the contexts for a bind_conf. This is used during deinit(). */
5057void ssl_sock_destroy_bind_conf(struct bind_conf *bind_conf)
5058{
5059 ssl_sock_free_ca(bind_conf);
5060 ssl_sock_free_all_ctx(bind_conf);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01005061 ssl_sock_free_ssl_conf(&bind_conf->ssl_conf);
Willy Tarreau795cdab2016-12-22 17:30:54 +01005062 free(bind_conf->ca_sign_file);
5063 free(bind_conf->ca_sign_pass);
Willy Tarreau17b4aa12018-07-17 10:05:32 +02005064 if (bind_conf->keys_ref && !--bind_conf->keys_ref->refcount) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01005065 free(bind_conf->keys_ref->filename);
5066 free(bind_conf->keys_ref->tlskeys);
5067 LIST_DEL(&bind_conf->keys_ref->list);
5068 free(bind_conf->keys_ref);
5069 }
5070 bind_conf->keys_ref = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01005071 bind_conf->ca_sign_pass = NULL;
5072 bind_conf->ca_sign_file = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01005073}
5074
Christopher Faulet31af49d2015-06-09 17:29:50 +02005075/* Load CA cert file and private key used to generate certificates */
5076int
Willy Tarreau03209342016-12-22 17:08:28 +01005077ssl_sock_load_ca(struct bind_conf *bind_conf)
Christopher Faulet31af49d2015-06-09 17:29:50 +02005078{
Willy Tarreau03209342016-12-22 17:08:28 +01005079 struct proxy *px = bind_conf->frontend;
Shimi Gersner5846c492020-08-23 13:58:12 +03005080 struct cert_key_and_chain *ckch = NULL;
5081 int ret = 0;
5082 char *err = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005083
Christopher Fauletf8bb0ce2017-09-15 09:52:49 +02005084 if (!bind_conf->generate_certs)
Shimi Gersner5846c492020-08-23 13:58:12 +03005085 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005086
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005087#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02005088 if (global_ssl.ctx_cache) {
Willy Tarreauef934602016-12-22 23:12:01 +01005089 ssl_ctx_lru_tree = lru64_new(global_ssl.ctx_cache);
Emeric Brun821bb9b2017-06-15 16:37:39 +02005090 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02005091 ssl_ctx_lru_seed = (unsigned int)time(NULL);
Emeric Brun821bb9b2017-06-15 16:37:39 +02005092 ssl_ctx_serial = now_ms;
Willy Tarreaua84c2672015-10-09 12:10:13 +02005093#endif
Christopher Fauletd2cab922015-07-28 16:03:47 +02005094
Christopher Faulet31af49d2015-06-09 17:29:50 +02005095 if (!bind_conf->ca_sign_file) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01005096 ha_alert("Proxy '%s': cannot enable certificate generation, "
5097 "no CA certificate File configured at [%s:%d].\n",
5098 px->id, bind_conf->file, bind_conf->line);
Shimi Gersner5846c492020-08-23 13:58:12 +03005099 goto failed;
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02005100 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005101
Shimi Gersner5846c492020-08-23 13:58:12 +03005102 /* Allocate cert structure */
Tim Duesterhuse52b6e52020-09-12 20:26:43 +02005103 ckch = calloc(1, sizeof(*ckch));
Shimi Gersner5846c492020-08-23 13:58:12 +03005104 if (!ckch) {
5105 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain allocation failure\n",
5106 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line);
5107 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005108 }
Shimi Gersner5846c492020-08-23 13:58:12 +03005109
5110 /* Try to parse file */
5111 if (ssl_sock_load_files_into_ckch(bind_conf->ca_sign_file, ckch, &err)) {
5112 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain loading failed: %s\n",
5113 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line, err);
5114 if (err) free(err);
5115 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005116 }
Shimi Gersner5846c492020-08-23 13:58:12 +03005117
5118 /* Fail if missing cert or pkey */
5119 if ((!ckch->cert) || (!ckch->key)) {
5120 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain missing certificate or private key\n",
5121 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line);
5122 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005123 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005124
Shimi Gersner5846c492020-08-23 13:58:12 +03005125 /* Final assignment to bind */
5126 bind_conf->ca_sign_ckch = ckch;
5127 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005128
Shimi Gersner5846c492020-08-23 13:58:12 +03005129 failed:
5130 if (ckch) {
5131 ssl_sock_free_cert_key_and_chain_contents(ckch);
5132 free(ckch);
5133 }
5134
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02005135 bind_conf->generate_certs = 0;
Shimi Gersner5846c492020-08-23 13:58:12 +03005136 ret++;
5137 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02005138}
5139
5140/* Release CA cert and private key used to generate certificated */
5141void
5142ssl_sock_free_ca(struct bind_conf *bind_conf)
5143{
Shimi Gersner5846c492020-08-23 13:58:12 +03005144 if (bind_conf->ca_sign_ckch) {
5145 ssl_sock_free_cert_key_and_chain_contents(bind_conf->ca_sign_ckch);
5146 free(bind_conf->ca_sign_ckch);
5147 bind_conf->ca_sign_ckch = NULL;
5148 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02005149}
5150
Emeric Brun46591952012-05-18 15:47:34 +02005151/*
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005152 * Try to allocate the BIO and SSL session objects of <conn> connection with <bio> and
5153 * <ssl> as addresses, <bio_meth> as BIO method and <ssl_ctx> as SSL context inherited settings.
5154 * Connect the allocated BIO to the allocated SSL session. Also set <ctx> as address of custom
5155 * data for the BIO and store <conn> as user data of the SSL session object.
Ilya Shipitsin1e9a6662021-01-05 22:10:46 +05005156 * This is the responsibility of the caller to check the validity of all the pointers passed
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005157 * as parameters to this function.
5158 * Return 0 if succeeded, -1 if not. If failed, sets the ->err_code member of <conn> to
5159 * CO_ER_SSL_NO_MEM.
5160 */
5161int ssl_bio_and_sess_init(struct connection *conn, SSL_CTX *ssl_ctx,
5162 SSL **ssl, BIO **bio, BIO_METHOD *bio_meth, void *ctx)
5163{
5164 int retry = 1;
5165
5166 retry:
5167 /* Alloc a new SSL session. */
5168 *ssl = SSL_new(ssl_ctx);
5169 if (!*ssl) {
5170 if (!retry--)
5171 goto err;
5172
5173 pool_gc(NULL);
5174 goto retry;
5175 }
5176
5177 *bio = BIO_new(bio_meth);
5178 if (!*bio) {
5179 SSL_free(*ssl);
5180 *ssl = NULL;
5181 if (!retry--)
5182 goto err;
5183
5184 pool_gc(NULL);
5185 goto retry;
5186 }
5187
5188 BIO_set_data(*bio, ctx);
5189 SSL_set_bio(*ssl, *bio, *bio);
5190
5191 /* set connection pointer. */
5192 if (!SSL_set_ex_data(*ssl, ssl_app_data_index, conn)) {
5193 SSL_free(*ssl);
5194 *ssl = NULL;
5195 if (!retry--)
5196 goto err;
5197
5198 pool_gc(NULL);
5199 goto retry;
5200 }
5201
5202 return 0;
5203
5204 err:
5205 conn->err_code = CO_ER_SSL_NO_MEM;
5206 return -1;
5207}
5208
5209/*
Emeric Brun46591952012-05-18 15:47:34 +02005210 * This function is called if SSL * context is not yet allocated. The function
5211 * is designed to be called before any other data-layer operation and sets the
5212 * handshake flag on the connection. It is safe to call it multiple times.
5213 * It returns 0 on success and -1 in error case.
5214 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005215static int ssl_sock_init(struct connection *conn, void **xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005216{
Olivier Houchard66ab4982019-02-26 18:37:15 +01005217 struct ssl_sock_ctx *ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005218 /* already initialized */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005219 if (*xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005220 return 0;
5221
Willy Tarreau3c728722014-01-23 13:50:42 +01005222 if (!conn_ctrl_ready(conn))
Willy Tarreauf79c8172013-10-21 16:30:56 +02005223 return 0;
5224
Olivier Houchard66ab4982019-02-26 18:37:15 +01005225 ctx = pool_alloc(ssl_sock_ctx_pool);
5226 if (!ctx) {
5227 conn->err_code = CO_ER_SSL_NO_MEM;
5228 return -1;
5229 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005230 ctx->wait_event.tasklet = tasklet_new();
5231 if (!ctx->wait_event.tasklet) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005232 conn->err_code = CO_ER_SSL_NO_MEM;
5233 pool_free(ssl_sock_ctx_pool, ctx);
5234 return -1;
5235 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005236 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
5237 ctx->wait_event.tasklet->context = ctx;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005238 ctx->wait_event.events = 0;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005239 ctx->sent_early_data = 0;
Olivier Houchard54907bb2019-12-19 15:02:39 +01005240 ctx->early_buf = BUF_NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02005241 ctx->conn = conn;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005242 ctx->subs = NULL;
Emeric Brun5762a0d2019-09-06 15:36:02 +02005243 ctx->xprt_st = 0;
5244 ctx->xprt_ctx = NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02005245
5246 /* Only work with sockets for now, this should be adapted when we'll
5247 * add QUIC support.
5248 */
5249 ctx->xprt = xprt_get(XPRT_RAW);
Olivier Houchard19afb272019-05-23 18:24:07 +02005250 if (ctx->xprt->init) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005251 if (ctx->xprt->init(conn, &ctx->xprt_ctx) != 0)
5252 goto err;
Olivier Houchard19afb272019-05-23 18:24:07 +02005253 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005254
Willy Tarreau20879a02012-12-03 16:32:10 +01005255 if (global.maxsslconn && sslconns >= global.maxsslconn) {
5256 conn->err_code = CO_ER_SSL_TOO_MANY;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005257 goto err;
Willy Tarreau20879a02012-12-03 16:32:10 +01005258 }
Willy Tarreau403edff2012-09-06 11:58:37 +02005259
Emeric Brun46591952012-05-18 15:47:34 +02005260 /* If it is in client mode initiate SSL session
5261 in connect state otherwise accept state */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01005262 if (objt_server(conn->target)) {
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005263 if (ssl_bio_and_sess_init(conn, __objt_server(conn->target)->ssl_ctx.ctx,
5264 &ctx->ssl, &ctx->bio, ha_meth, ctx) == -1)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005265 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005266
Olivier Houchard66ab4982019-02-26 18:37:15 +01005267 SSL_set_connect_state(ctx->ssl);
Willy Tarreau07d94e42018-09-20 10:57:52 +02005268 if (__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr) {
5269 const unsigned char *ptr = __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr;
5270 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 +01005271 if (sess && !SSL_set_session(ctx->ssl, sess)) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01005272 SSL_SESSION_free(sess);
Willy Tarreau07d94e42018-09-20 10:57:52 +02005273 free(__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr);
5274 __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr = NULL;
Olivier Houcharde6060c52017-11-16 17:42:52 +01005275 } else if (sess) {
5276 SSL_SESSION_free(sess);
Emeric Brun55476152014-11-12 17:35:37 +01005277 }
5278 }
Evan Broderbe554312013-06-27 00:05:25 -07005279
Emeric Brun46591952012-05-18 15:47:34 +02005280 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005281 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Willy Tarreau403edff2012-09-06 11:58:37 +02005282
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01005283 _HA_ATOMIC_ADD(&sslconns, 1);
5284 _HA_ATOMIC_ADD(&totalsslconns, 1);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005285 *xprt_ctx = ctx;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005286 /* Start the handshake */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005287 tasklet_wakeup(ctx->wait_event.tasklet);
Emeric Brun46591952012-05-18 15:47:34 +02005288 return 0;
5289 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +01005290 else if (objt_listener(conn->target)) {
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005291 struct bind_conf *bc = __objt_listener(conn->target)->bind_conf;
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005292
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005293 if (ssl_bio_and_sess_init(conn, bc->initial_ctx,
5294 &ctx->ssl, &ctx->bio, ha_meth, ctx) == -1)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005295 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005296
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005297#ifdef SSL_READ_EARLY_DATA_SUCCESS
Frédéric Lécaille5aa92412020-11-09 15:59:23 +01005298 if (bc->ssl_conf.early_data) {
Frédéric Lécaille3139c1b2020-01-24 14:56:18 +01005299 b_alloc(&ctx->early_buf);
5300 SSL_set_max_early_data(ctx->ssl,
5301 /* Only allow early data if we managed to allocate
5302 * a buffer.
5303 */
5304 (!b_is_null(&ctx->early_buf)) ?
5305 global.tune.bufsize - global.tune.maxrewrite : 0);
5306 }
5307#endif
5308
Olivier Houchard66ab4982019-02-26 18:37:15 +01005309 SSL_set_accept_state(ctx->ssl);
Emeric Brune1f38db2012-09-03 20:36:47 +02005310
Emeric Brun46591952012-05-18 15:47:34 +02005311 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005312 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005313#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005314 conn->flags |= CO_FL_EARLY_SSL_HS;
5315#endif
Willy Tarreau403edff2012-09-06 11:58:37 +02005316
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01005317 _HA_ATOMIC_ADD(&sslconns, 1);
5318 _HA_ATOMIC_ADD(&totalsslconns, 1);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005319 *xprt_ctx = ctx;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005320 /* Start the handshake */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005321 tasklet_wakeup(ctx->wait_event.tasklet);
Emeric Brun46591952012-05-18 15:47:34 +02005322 return 0;
5323 }
5324 /* don't know how to handle such a target */
Willy Tarreau20879a02012-12-03 16:32:10 +01005325 conn->err_code = CO_ER_SSL_NO_TARGET;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005326err:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005327 if (ctx && ctx->wait_event.tasklet)
5328 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01005329 pool_free(ssl_sock_ctx_pool, ctx);
Emeric Brun46591952012-05-18 15:47:34 +02005330 return -1;
5331}
5332
5333
5334/* This is the callback which is used when an SSL handshake is pending. It
5335 * updates the FD status if it wants some polling before being called again.
5336 * It returns 0 if it fails in a fatal way or needs to poll to go further,
5337 * otherwise it returns non-zero and removes itself from the connection's
5338 * flags (the bit is provided in <flag> by the caller).
5339 */
Olivier Houchard000694c2019-05-23 14:45:12 +02005340static int ssl_sock_handshake(struct connection *conn, unsigned int flag)
Emeric Brun46591952012-05-18 15:47:34 +02005341{
Olivier Houchard66ab4982019-02-26 18:37:15 +01005342 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005343 int ret;
Willy Tarreau42995282020-11-06 13:19:18 +01005344 struct ssl_counters *counters = NULL;
5345 struct ssl_counters *counters_px = NULL;
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005346 struct listener *li;
5347 struct server *srv;
Emeric Brun46591952012-05-18 15:47:34 +02005348
Willy Tarreau3c728722014-01-23 13:50:42 +01005349 if (!conn_ctrl_ready(conn))
Willy Tarreauf79c8172013-10-21 16:30:56 +02005350 return 0;
5351
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005352 /* get counters */
5353 switch (obj_type(conn->target)) {
5354 case OBJ_TYPE_LISTENER:
5355 li = objt_listener(conn->target);
5356 counters = EXTRA_COUNTERS_GET(li->extra_counters, &ssl_stats_module);
5357 counters_px = EXTRA_COUNTERS_GET(li->bind_conf->frontend->extra_counters_fe,
5358 &ssl_stats_module);
5359 break;
5360
5361 case OBJ_TYPE_SERVER:
5362 srv = objt_server(conn->target);
5363 counters = EXTRA_COUNTERS_GET(srv->extra_counters, &ssl_stats_module);
5364 counters_px = EXTRA_COUNTERS_GET(srv->proxy->extra_counters_be,
5365 &ssl_stats_module);
5366 break;
5367
5368 default:
5369 break;
5370 }
5371
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02005372 if (!conn->xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005373 goto out_error;
5374
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005375#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005376 /*
5377 * Check if we have early data. If we do, we have to read them
5378 * before SSL_do_handshake() is called, And there's no way to
5379 * detect early data, except to try to read them
5380 */
5381 if (conn->flags & CO_FL_EARLY_SSL_HS) {
Olivier Houchard54907bb2019-12-19 15:02:39 +01005382 size_t read_data = 0;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005383
Olivier Houchard54907bb2019-12-19 15:02:39 +01005384 while (1) {
5385 ret = SSL_read_early_data(ctx->ssl,
5386 b_tail(&ctx->early_buf), b_room(&ctx->early_buf),
5387 &read_data);
5388 if (ret == SSL_READ_EARLY_DATA_ERROR)
5389 goto check_error;
5390 if (read_data > 0) {
5391 conn->flags |= CO_FL_EARLY_DATA;
5392 b_add(&ctx->early_buf, read_data);
5393 }
5394 if (ret == SSL_READ_EARLY_DATA_FINISH) {
5395 conn->flags &= ~CO_FL_EARLY_SSL_HS;
5396 if (!b_data(&ctx->early_buf))
5397 b_free(&ctx->early_buf);
5398 break;
5399 }
5400 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02005401 }
5402#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005403 /* If we use SSL_do_handshake to process a reneg initiated by
5404 * the remote peer, it sometimes returns SSL_ERROR_SSL.
5405 * Usually SSL_write and SSL_read are used and process implicitly
5406 * the reneg handshake.
5407 * Here we use SSL_peek as a workaround for reneg.
5408 */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01005409 if (!(conn->flags & CO_FL_WAIT_L6_CONN) && SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005410 char c;
5411
Olivier Houchard66ab4982019-02-26 18:37:15 +01005412 ret = SSL_peek(ctx->ssl, &c, 1);
Emeric Brun674b7432012-11-08 19:21:55 +01005413 if (ret <= 0) {
5414 /* handshake may have not been completed, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005415 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005416
Emeric Brun674b7432012-11-08 19:21:55 +01005417 if (ret == SSL_ERROR_WANT_WRITE) {
5418 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005419 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005420 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005421 return 0;
5422 }
5423 else if (ret == SSL_ERROR_WANT_READ) {
5424 /* handshake may have been completed but we have
5425 * no more data to read.
5426 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005427 if (!SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005428 ret = 1;
5429 goto reneg_ok;
5430 }
5431 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005432 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005433 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005434 return 0;
5435 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005436#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005437 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005438 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005439 return 0;
5440 }
5441#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005442 else if (ret == SSL_ERROR_SYSCALL) {
5443 /* if errno is null, then connection was successfully established */
5444 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5445 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Willy Tarreau20879a02012-12-03 16:32:10 +01005446 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005447#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5448 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005449 conn->err_code = CO_ER_SSL_HANDSHAKE;
5450#else
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005451 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005452#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005453 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005454 OSSL_HANDSHAKE_STATE state = SSL_get_state((SSL *)ctx->ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005455 empty_handshake = state == TLS_ST_BEFORE;
5456#else
Lukas Tribus49799162019-07-08 14:29:15 +02005457 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5458 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005459#endif
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005460 if (empty_handshake) {
Emeric Brun29f037d2014-04-25 19:05:36 +02005461 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005462 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005463 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5464 else
5465 conn->err_code = CO_ER_SSL_EMPTY;
5466 }
5467 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005468 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005469 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5470 else
5471 conn->err_code = CO_ER_SSL_ABORT;
5472 }
5473 }
5474 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005475 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005476 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
Willy Tarreau20879a02012-12-03 16:32:10 +01005477 else
Emeric Brun29f037d2014-04-25 19:05:36 +02005478 conn->err_code = CO_ER_SSL_HANDSHAKE;
5479 }
Lukas Tribus49799162019-07-08 14:29:15 +02005480#endif /* BoringSSL or LibreSSL */
Willy Tarreau20879a02012-12-03 16:32:10 +01005481 }
Emeric Brun674b7432012-11-08 19:21:55 +01005482 goto out_error;
5483 }
5484 else {
5485 /* Fail on all other handshake errors */
5486 /* Note: OpenSSL may leave unread bytes in the socket's
5487 * buffer, causing an RST to be emitted upon close() on
5488 * TCP sockets. We first try to drain possibly pending
5489 * data to avoid this as much as possible.
5490 */
Willy Tarreau2ded48d2020-12-11 16:20:34 +01005491 conn_ctrl_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005492 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005493 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005494 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun674b7432012-11-08 19:21:55 +01005495 goto out_error;
5496 }
5497 }
5498 /* read some data: consider handshake completed */
5499 goto reneg_ok;
5500 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005501 ret = SSL_do_handshake(ctx->ssl);
Olivier Houchardc2aae742017-09-22 18:26:28 +02005502check_error:
Emeric Brun46591952012-05-18 15:47:34 +02005503 if (ret != 1) {
5504 /* handshake did not complete, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005505 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005506
5507 if (ret == SSL_ERROR_WANT_WRITE) {
5508 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005509 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005510 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005511 return 0;
5512 }
5513 else if (ret == SSL_ERROR_WANT_READ) {
5514 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchardea8dd942019-05-20 14:02:16 +02005515 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005516 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
5517 SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005518 return 0;
5519 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005520#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005521 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005522 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005523 return 0;
5524 }
5525#endif
Willy Tarreau89230192012-09-28 20:22:13 +02005526 else if (ret == SSL_ERROR_SYSCALL) {
5527 /* if errno is null, then connection was successfully established */
5528 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5529 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005530 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005531#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5532 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005533 conn->err_code = CO_ER_SSL_HANDSHAKE;
5534#else
5535 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005536#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005537 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005538 OSSL_HANDSHAKE_STATE state = SSL_get_state(ctx->ssl);
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005539 empty_handshake = state == TLS_ST_BEFORE;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005540#else
Lukas Tribus49799162019-07-08 14:29:15 +02005541 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5542 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005543#endif
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005544 if (empty_handshake) {
5545 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005546 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005547 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5548 else
5549 conn->err_code = CO_ER_SSL_EMPTY;
5550 }
5551 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005552 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005553 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5554 else
5555 conn->err_code = CO_ER_SSL_ABORT;
5556 }
Emeric Brun29f037d2014-04-25 19:05:36 +02005557 }
5558 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005559 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005560 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5561 else
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005562 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun29f037d2014-04-25 19:05:36 +02005563 }
Lukas Tribus49799162019-07-08 14:29:15 +02005564#endif /* BoringSSL or LibreSSL */
Emeric Brun29f037d2014-04-25 19:05:36 +02005565 }
Willy Tarreau89230192012-09-28 20:22:13 +02005566 goto out_error;
5567 }
Emeric Brun46591952012-05-18 15:47:34 +02005568 else {
5569 /* Fail on all other handshake errors */
Willy Tarreau566dc552012-10-19 20:52:18 +02005570 /* Note: OpenSSL may leave unread bytes in the socket's
5571 * buffer, causing an RST to be emitted upon close() on
5572 * TCP sockets. We first try to drain possibly pending
5573 * data to avoid this as much as possible.
5574 */
Willy Tarreau2ded48d2020-12-11 16:20:34 +01005575 conn_ctrl_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005576 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005577 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005578 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005579 goto out_error;
5580 }
5581 }
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005582#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard522eea72017-11-03 16:27:47 +01005583 else {
5584 /*
5585 * If the server refused the early data, we have to send a
5586 * 425 to the client, as we no longer have the data to sent
5587 * them again.
5588 */
5589 if ((conn->flags & CO_FL_EARLY_DATA) && (objt_server(conn->target))) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005590 if (SSL_get_early_data_status(ctx->ssl) == SSL_EARLY_DATA_REJECTED) {
Olivier Houchard522eea72017-11-03 16:27:47 +01005591 conn->err_code = CO_ER_SSL_EARLY_FAILED;
5592 goto out_error;
5593 }
5594 }
5595 }
5596#endif
5597
Emeric Brun46591952012-05-18 15:47:34 +02005598
Emeric Brun674b7432012-11-08 19:21:55 +01005599reneg_ok:
Emeric Brunb5e42a82017-06-06 12:35:14 +00005600
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005601#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005602 /* ASYNC engine API doesn't support moving read/write
5603 * buffers. So we disable ASYNC mode right after
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05005604 * the handshake to avoid buffer overflow.
Emeric Brunb5e42a82017-06-06 12:35:14 +00005605 */
5606 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005607 SSL_clear_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005608#endif
Emeric Brun46591952012-05-18 15:47:34 +02005609 /* Handshake succeeded */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005610 if (!SSL_session_reused(ctx->ssl)) {
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005611 if (objt_server(conn->target)) {
5612 update_freq_ctr(&global.ssl_be_keys_per_sec, 1);
5613 if (global.ssl_be_keys_per_sec.curr_ctr > global.ssl_be_keys_max)
5614 global.ssl_be_keys_max = global.ssl_be_keys_per_sec.curr_ctr;
Emeric Brun46591952012-05-18 15:47:34 +02005615 }
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005616 else {
5617 update_freq_ctr(&global.ssl_fe_keys_per_sec, 1);
5618 if (global.ssl_fe_keys_per_sec.curr_ctr > global.ssl_fe_keys_max)
5619 global.ssl_fe_keys_max = global.ssl_fe_keys_per_sec.curr_ctr;
5620 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005621
Willy Tarreau42995282020-11-06 13:19:18 +01005622 if (counters) {
5623 ++counters->sess;
5624 ++counters_px->sess;
5625 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005626 }
Willy Tarreau42995282020-11-06 13:19:18 +01005627 else if (counters) {
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005628 ++counters->reused_sess;
5629 ++counters_px->reused_sess;
Emeric Brun46591952012-05-18 15:47:34 +02005630 }
5631
5632 /* The connection is now established at both layers, it's time to leave */
5633 conn->flags &= ~(flag | CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN);
5634 return 1;
5635
5636 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01005637 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005638 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005639 ERR_clear_error();
5640
Emeric Brun9fa89732012-10-04 17:09:56 +02005641 /* free resumed session if exists */
Willy Tarreau07d94e42018-09-20 10:57:52 +02005642 if (objt_server(conn->target) && __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr) {
5643 free(__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr);
5644 __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr = NULL;
Emeric Brun9fa89732012-10-04 17:09:56 +02005645 }
5646
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005647 if (counters) {
5648 ++counters->failed_handshake;
5649 ++counters_px->failed_handshake;
5650 }
5651
Emeric Brun46591952012-05-18 15:47:34 +02005652 /* Fail on all other handshake errors */
5653 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01005654 if (!conn->err_code)
5655 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005656 return 0;
5657}
5658
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005659/* Called from the upper layer, to subscribe <es> to events <event_type>. The
5660 * event subscriber <es> is not allowed to change from a previous call as long
5661 * as at least one event is still subscribed. The <event_type> must only be a
5662 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0,
5663 * unless the transport layer was already released.
5664 */
5665static int ssl_subscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005666{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005667 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005668
Olivier Houchard0ff28652019-06-24 18:57:39 +02005669 if (!ctx)
5670 return -1;
5671
Willy Tarreau113d52b2020-01-10 09:20:26 +01005672 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005673 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005674
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005675 ctx->subs = es;
5676 es->events |= event_type;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005677
5678 /* we may have to subscribe to lower layers for new events */
5679 event_type &= ~ctx->wait_event.events;
5680 if (event_type && !(conn->flags & CO_FL_SSL_WAIT_HS))
5681 ctx->xprt->subscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005682 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005683}
5684
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005685/* Called from the upper layer, to unsubscribe <es> from events <event_type>.
5686 * The <es> pointer is not allowed to differ from the one passed to the
5687 * subscribe() call. It always returns zero.
5688 */
5689static int ssl_unsubscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005690{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005691 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005692
Willy Tarreau113d52b2020-01-10 09:20:26 +01005693 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005694 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005695
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005696 es->events &= ~event_type;
5697 if (!es->events)
Willy Tarreau113d52b2020-01-10 09:20:26 +01005698 ctx->subs = NULL;
5699
5700 /* If we subscribed, and we're not doing the handshake,
5701 * then we subscribed because the upper layer asked for it,
5702 * as the upper layer is no longer interested, we can
5703 * unsubscribe too.
5704 */
5705 event_type &= ctx->wait_event.events;
5706 if (event_type && !(ctx->conn->flags & CO_FL_SSL_WAIT_HS))
5707 conn_unsubscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005708
5709 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005710}
5711
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005712/* The connection has been taken over, so destroy the old tasklet and create
5713 * a new one. The original thread ID must be passed into orig_tid
5714 * It should be called with the takeover lock for the old thread held.
5715 * Returns 0 on success, and -1 on failure
5716 */
5717static int ssl_takeover(struct connection *conn, void *xprt_ctx, int orig_tid)
5718{
5719 struct ssl_sock_ctx *ctx = xprt_ctx;
5720 struct tasklet *tl = tasklet_new();
5721
5722 if (!tl)
5723 return -1;
5724
5725 ctx->wait_event.tasklet->context = NULL;
5726 tasklet_wakeup_on(ctx->wait_event.tasklet, orig_tid);
5727 ctx->wait_event.tasklet = tl;
5728 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
5729 ctx->wait_event.tasklet->context = ctx;
5730 return 0;
5731}
5732
Olivier Houchard2e055482019-05-27 19:50:12 +02005733/* Use the provided XPRT as an underlying XPRT, and provide the old one.
5734 * Returns 0 on success, and non-zero on failure.
5735 */
5736static 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)
5737{
5738 struct ssl_sock_ctx *ctx = xprt_ctx;
5739
5740 if (oldxprt_ops != NULL)
5741 *oldxprt_ops = ctx->xprt;
5742 if (oldxprt_ctx != NULL)
5743 *oldxprt_ctx = ctx->xprt_ctx;
5744 ctx->xprt = toadd_ops;
5745 ctx->xprt_ctx = toadd_ctx;
5746 return 0;
5747}
5748
Olivier Houchard5149b592019-05-23 17:47:36 +02005749/* Remove the specified xprt. If if it our underlying XPRT, remove it and
5750 * return 0, otherwise just call the remove_xprt method from the underlying
5751 * XPRT.
5752 */
5753static int ssl_remove_xprt(struct connection *conn, void *xprt_ctx, void *toremove_ctx, const struct xprt_ops *newops, void *newctx)
5754{
5755 struct ssl_sock_ctx *ctx = xprt_ctx;
5756
5757 if (ctx->xprt_ctx == toremove_ctx) {
5758 ctx->xprt_ctx = newctx;
5759 ctx->xprt = newops;
5760 return 0;
5761 }
5762 return (ctx->xprt->remove_xprt(conn, ctx->xprt_ctx, toremove_ctx, newops, newctx));
5763}
5764
Willy Tarreau691d5032021-01-20 14:55:01 +01005765struct task *ssl_sock_io_cb(struct task *t, void *context, unsigned short state)
Olivier Houchardea8dd942019-05-20 14:02:16 +02005766{
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005767 struct tasklet *tl = (struct tasklet *)t;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005768 struct ssl_sock_ctx *ctx = context;
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005769 struct connection *conn;
5770 int conn_in_list;
5771 int ret = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005772
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005773 HA_SPIN_LOCK(OTHER_LOCK, &idle_conns[tid].takeover_lock);
5774 if (tl->context == NULL) {
5775 HA_SPIN_UNLOCK(OTHER_LOCK, &idle_conns[tid].takeover_lock);
5776 tasklet_free(tl);
5777 return NULL;
5778 }
5779 conn = ctx->conn;
5780 conn_in_list = conn->flags & CO_FL_LIST_MASK;
5781 if (conn_in_list)
5782 MT_LIST_DEL(&conn->list);
5783 HA_SPIN_UNLOCK(OTHER_LOCK, &idle_conns[tid].takeover_lock);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005784 /* First if we're doing an handshake, try that */
5785 if (ctx->conn->flags & CO_FL_SSL_WAIT_HS)
5786 ssl_sock_handshake(ctx->conn, CO_FL_SSL_WAIT_HS);
5787 /* If we had an error, or the handshake is done and I/O is available,
5788 * let the upper layer know.
Olivier Houchard477902b2020-01-22 18:08:48 +01005789 * If no mux was set up yet, then call conn_create_mux()
Olivier Houchardea8dd942019-05-20 14:02:16 +02005790 * we can't be sure conn_fd_handler() will be called again.
5791 */
5792 if ((ctx->conn->flags & CO_FL_ERROR) ||
5793 !(ctx->conn->flags & CO_FL_SSL_WAIT_HS)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005794 int woke = 0;
5795
5796 /* On error, wake any waiter */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005797 if (ctx->subs) {
5798 tasklet_wakeup(ctx->subs->tasklet);
5799 ctx->subs->events = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005800 woke = 1;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005801 ctx->subs = NULL;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005802 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01005803
Olivier Houchardea8dd942019-05-20 14:02:16 +02005804 /* If we're the first xprt for the connection, let the
Olivier Houchard477902b2020-01-22 18:08:48 +01005805 * upper layers know. If we have no mux, create it,
5806 * and once we have a mux, call its wake method if we didn't
5807 * woke a tasklet already.
Olivier Houchardea8dd942019-05-20 14:02:16 +02005808 */
5809 if (ctx->conn->xprt_ctx == ctx) {
Olivier Houchard477902b2020-01-22 18:08:48 +01005810 if (!ctx->conn->mux)
5811 ret = conn_create_mux(ctx->conn);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005812 if (ret >= 0 && !woke && ctx->conn->mux && ctx->conn->mux->wake)
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005813 ret = ctx->conn->mux->wake(ctx->conn);
5814 goto leave;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005815 }
5816 }
Ilya Shipitsin761d64c2021-01-07 11:59:58 +05005817#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard54907bb2019-12-19 15:02:39 +01005818 /* If we have early data and somebody wants to receive, let them */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005819 else if (b_data(&ctx->early_buf) && ctx->subs &&
5820 ctx->subs->events & SUB_RETRY_RECV) {
5821 tasklet_wakeup(ctx->subs->tasklet);
5822 ctx->subs->events &= ~SUB_RETRY_RECV;
5823 if (!ctx->subs->events)
5824 ctx->subs = NULL;
Olivier Houchard54907bb2019-12-19 15:02:39 +01005825 }
5826#endif
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005827leave:
5828 if (!ret && conn_in_list) {
5829 struct server *srv = objt_server(conn->target);
5830
5831 if (conn_in_list == CO_FL_SAFE_LIST)
Willy Tarreaua9d7b762020-07-10 08:28:20 +02005832 MT_LIST_ADDQ(&srv->safe_conns[tid], &conn->list);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005833 else
Willy Tarreaua9d7b762020-07-10 08:28:20 +02005834 MT_LIST_ADDQ(&srv->idle_conns[tid], &conn->list);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005835 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02005836 return NULL;
5837}
5838
Emeric Brun46591952012-05-18 15:47:34 +02005839/* Receive up to <count> bytes from connection <conn>'s socket and store them
Willy Tarreauabf08d92014-01-14 11:31:27 +01005840 * into buffer <buf>. Only one call to recv() is performed, unless the
Emeric Brun46591952012-05-18 15:47:34 +02005841 * buffer wraps, in which case a second call may be performed. The connection's
5842 * flags are updated with whatever special event is detected (error, read0,
5843 * empty). The caller is responsible for taking care of those events and
5844 * avoiding the call if inappropriate. The function does not call the
5845 * connection's polling update function, so the caller is responsible for this.
5846 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005847static 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 +02005848{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005849 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreaubfc4d772018-07-18 11:22:03 +02005850 ssize_t ret;
5851 size_t try, done = 0;
Emeric Brun46591952012-05-18 15:47:34 +02005852
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005853 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005854 goto out_error;
5855
Ilya Shipitsin761d64c2021-01-07 11:59:58 +05005856#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard54907bb2019-12-19 15:02:39 +01005857 if (b_data(&ctx->early_buf)) {
5858 try = b_contig_space(buf);
5859 if (try > b_data(&ctx->early_buf))
5860 try = b_data(&ctx->early_buf);
5861 memcpy(b_tail(buf), b_head(&ctx->early_buf), try);
5862 b_add(buf, try);
5863 b_del(&ctx->early_buf, try);
5864 if (b_data(&ctx->early_buf) == 0)
5865 b_free(&ctx->early_buf);
5866 return try;
5867 }
5868#endif
5869
Willy Tarreau911db9b2020-01-23 16:27:54 +01005870 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02005871 /* a handshake was requested */
5872 return 0;
5873
Emeric Brun46591952012-05-18 15:47:34 +02005874 /* read the largest possible block. For this, we perform only one call
5875 * to recv() unless the buffer wraps and we exactly fill the first hunk,
5876 * in which case we accept to do it once again. A new attempt is made on
5877 * EINTR too.
5878 */
Willy Tarreau00b0fb92014-01-17 11:09:40 +01005879 while (count > 0) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02005880
Willy Tarreau591d4452018-06-15 17:21:00 +02005881 try = b_contig_space(buf);
5882 if (!try)
5883 break;
5884
Willy Tarreauabf08d92014-01-14 11:31:27 +01005885 if (try > count)
5886 try = count;
Willy Tarreau591d4452018-06-15 17:21:00 +02005887
Olivier Houchard66ab4982019-02-26 18:37:15 +01005888 ret = SSL_read(ctx->ssl, b_tail(buf), try);
Emmanuel Hocdetf967c312019-08-05 18:04:16 +02005889
Emeric Brune1f38db2012-09-03 20:36:47 +02005890 if (conn->flags & CO_FL_ERROR) {
5891 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01005892 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02005893 }
Emeric Brun46591952012-05-18 15:47:34 +02005894 if (ret > 0) {
Olivier Houchardacd14032018-06-28 18:17:23 +02005895 b_add(buf, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005896 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02005897 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02005898 }
Emeric Brun46591952012-05-18 15:47:34 +02005899 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005900 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005901 if (ret == SSL_ERROR_WANT_WRITE) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01005902 /* handshake is running, and it needs to enable write */
Emeric Brun46591952012-05-18 15:47:34 +02005903 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005904 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005905#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005906 /* Async mode can be re-enabled, because we're leaving data state.*/
5907 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005908 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005909#endif
Emeric Brun46591952012-05-18 15:47:34 +02005910 break;
5911 }
5912 else if (ret == SSL_ERROR_WANT_READ) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005913 if (SSL_renegotiate_pending(ctx->ssl)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005914 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
5915 SUB_RETRY_RECV,
5916 &ctx->wait_event);
Emeric Brun282a76a2012-11-08 18:02:56 +01005917 /* handshake is running, and it may need to re-enable read */
5918 conn->flags |= CO_FL_SSL_WAIT_HS;
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005919#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005920 /* Async mode can be re-enabled, because we're leaving data state.*/
5921 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005922 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005923#endif
Emeric Brun282a76a2012-11-08 18:02:56 +01005924 break;
5925 }
Emeric Brun46591952012-05-18 15:47:34 +02005926 break;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005927 } else if (ret == SSL_ERROR_ZERO_RETURN)
5928 goto read0;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01005929 /* For SSL_ERROR_SYSCALL, make sure to clear the error
5930 * stack before shutting down the connection for
5931 * reading. */
Olivier Houchard7e2e5052018-02-13 15:17:23 +01005932 if (ret == SSL_ERROR_SYSCALL && (!errno || errno == EAGAIN))
5933 goto clear_ssl_error;
Emeric Brun46591952012-05-18 15:47:34 +02005934 /* otherwise it's a real error */
5935 goto out_error;
5936 }
5937 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005938 leave:
Emeric Brun46591952012-05-18 15:47:34 +02005939 return done;
5940
Christopher Faulet4ac77a92018-02-19 14:25:15 +01005941 clear_ssl_error:
5942 /* Clear openssl global errors stack */
5943 ssl_sock_dump_errors(conn);
5944 ERR_clear_error();
Emeric Brun46591952012-05-18 15:47:34 +02005945 read0:
5946 conn_sock_read0(conn);
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005947 goto leave;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01005948
Emeric Brun46591952012-05-18 15:47:34 +02005949 out_error:
Olivier Houchard7e2e5052018-02-13 15:17:23 +01005950 conn->flags |= CO_FL_ERROR;
Emeric Brun644cde02012-12-14 11:21:13 +01005951 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005952 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005953 ERR_clear_error();
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005954 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02005955}
5956
5957
Willy Tarreau787db9a2018-06-14 18:31:46 +02005958/* Send up to <count> pending bytes from buffer <buf> to connection <conn>'s
5959 * socket. <flags> may contain some CO_SFL_* flags to hint the system about
5960 * other pending data for example, but this flag is ignored at the moment.
Emeric Brun46591952012-05-18 15:47:34 +02005961 * Only one call to send() is performed, unless the buffer wraps, in which case
5962 * a second call may be performed. The connection's flags are updated with
5963 * whatever special event is detected (error, empty). The caller is responsible
5964 * for taking care of those events and avoiding the call if inappropriate. The
5965 * function does not call the connection's polling update function, so the caller
Willy Tarreau787db9a2018-06-14 18:31:46 +02005966 * is responsible for this. The buffer's output is not adjusted, it's up to the
5967 * caller to take care of this. It's up to the caller to update the buffer's
5968 * contents based on the return value.
Emeric Brun46591952012-05-18 15:47:34 +02005969 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005970static 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 +02005971{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005972 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreau787db9a2018-06-14 18:31:46 +02005973 ssize_t ret;
5974 size_t try, done;
Emeric Brun46591952012-05-18 15:47:34 +02005975
5976 done = 0;
5977
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005978 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005979 goto out_error;
5980
Willy Tarreau911db9b2020-01-23 16:27:54 +01005981 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS | CO_FL_EARLY_SSL_HS))
Emeric Brun46591952012-05-18 15:47:34 +02005982 /* a handshake was requested */
5983 return 0;
5984
5985 /* send the largest possible block. For this we perform only one call
5986 * to send() unless the buffer wraps and we exactly fill the first hunk,
5987 * in which case we accept to do it once again.
5988 */
Willy Tarreau787db9a2018-06-14 18:31:46 +02005989 while (count) {
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005990#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005991 size_t written_data;
5992#endif
5993
Willy Tarreau787db9a2018-06-14 18:31:46 +02005994 try = b_contig_data(buf, done);
5995 if (try > count)
5996 try = count;
Willy Tarreaubfd59462013-02-21 07:46:09 +01005997
Willy Tarreau7bed9452014-02-02 02:00:24 +01005998 if (!(flags & CO_SFL_STREAMER) &&
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005999 !(ctx->xprt_st & SSL_SOCK_SEND_UNLIMITED) &&
Willy Tarreauef934602016-12-22 23:12:01 +01006000 global_ssl.max_record && try > global_ssl.max_record) {
6001 try = global_ssl.max_record;
Willy Tarreau518cedd2014-02-17 15:43:01 +01006002 }
6003 else {
6004 /* we need to keep the information about the fact that
6005 * we're not limiting the upcoming send(), because if it
6006 * fails, we'll have to retry with at least as many data.
6007 */
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006008 ctx->xprt_st |= SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau518cedd2014-02-17 15:43:01 +01006009 }
Willy Tarreaubfd59462013-02-21 07:46:09 +01006010
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05006011#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard010941f2019-05-03 20:56:19 +02006012 if (!SSL_is_init_finished(ctx->ssl) && conn_is_back(conn)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02006013 unsigned int max_early;
6014
Olivier Houchard522eea72017-11-03 16:27:47 +01006015 if (objt_listener(conn->target))
Olivier Houchard66ab4982019-02-26 18:37:15 +01006016 max_early = SSL_get_max_early_data(ctx->ssl);
Olivier Houchard522eea72017-11-03 16:27:47 +01006017 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006018 if (SSL_get0_session(ctx->ssl))
6019 max_early = SSL_SESSION_get_max_early_data(SSL_get0_session(ctx->ssl));
Olivier Houchard522eea72017-11-03 16:27:47 +01006020 else
6021 max_early = 0;
6022 }
6023
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006024 if (try + ctx->sent_early_data > max_early) {
6025 try -= (try + ctx->sent_early_data) - max_early;
Olivier Houchard522eea72017-11-03 16:27:47 +01006026 if (try <= 0) {
Olivier Houchard010941f2019-05-03 20:56:19 +02006027 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006028 tasklet_wakeup(ctx->wait_event.tasklet);
Olivier Houchardc2aae742017-09-22 18:26:28 +02006029 break;
Olivier Houchard522eea72017-11-03 16:27:47 +01006030 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02006031 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01006032 ret = SSL_write_early_data(ctx->ssl, b_peek(buf, done), try, &written_data);
Olivier Houchardc2aae742017-09-22 18:26:28 +02006033 if (ret == 1) {
6034 ret = written_data;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006035 ctx->sent_early_data += ret;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006036 if (objt_server(conn->target)) {
Olivier Houchard522eea72017-11-03 16:27:47 +01006037 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN | CO_FL_EARLY_DATA;
Olivier Houchard965e84e2019-06-15 20:59:30 +02006038 /* Initiate the handshake, now */
6039 tasklet_wakeup(ctx->wait_event.tasklet);
6040 }
Olivier Houchard522eea72017-11-03 16:27:47 +01006041
Olivier Houchardc2aae742017-09-22 18:26:28 +02006042 }
6043
6044 } else
6045#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01006046 ret = SSL_write(ctx->ssl, b_peek(buf, done), try);
Willy Tarreau518cedd2014-02-17 15:43:01 +01006047
Emeric Brune1f38db2012-09-03 20:36:47 +02006048 if (conn->flags & CO_FL_ERROR) {
6049 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01006050 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02006051 }
Emeric Brun46591952012-05-18 15:47:34 +02006052 if (ret > 0) {
Willy Tarreauc192b0a2020-01-23 09:11:58 +01006053 /* A send succeeded, so we can consider ourself connected */
6054 conn->flags &= ~CO_FL_WAIT_L4L6;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006055 ctx->xprt_st &= ~SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau787db9a2018-06-14 18:31:46 +02006056 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02006057 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02006058 }
6059 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006060 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006061
Emeric Brun46591952012-05-18 15:47:34 +02006062 if (ret == SSL_ERROR_WANT_WRITE) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01006063 if (SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun282a76a2012-11-08 18:02:56 +01006064 /* handshake is running, and it may need to re-enable write */
6065 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 Brun282a76a2012-11-08 18:02:56 +01006072 break;
6073 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02006074
Emeric Brun46591952012-05-18 15:47:34 +02006075 break;
6076 }
6077 else if (ret == SSL_ERROR_WANT_READ) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01006078 /* handshake is running, and it needs to enable read */
Emeric Brun46591952012-05-18 15:47:34 +02006079 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02006080 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
6081 SUB_RETRY_RECV,
6082 &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006083#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00006084 /* Async mode can be re-enabled, because we're leaving data state.*/
6085 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006086 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00006087#endif
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006088 break;
6089 }
Emeric Brun46591952012-05-18 15:47:34 +02006090 goto out_error;
6091 }
6092 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006093 leave:
Emeric Brun46591952012-05-18 15:47:34 +02006094 return done;
6095
6096 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01006097 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006098 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006099 ERR_clear_error();
6100
Emeric Brun46591952012-05-18 15:47:34 +02006101 conn->flags |= CO_FL_ERROR;
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02006102 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02006103}
6104
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006105static void ssl_sock_close(struct connection *conn, void *xprt_ctx) {
Emeric Brun46591952012-05-18 15:47:34 +02006106
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006107 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006108
Olivier Houchardea8dd942019-05-20 14:02:16 +02006109
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006110 if (ctx) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02006111 if (ctx->wait_event.events != 0)
6112 ctx->xprt->unsubscribe(ctx->conn, ctx->xprt_ctx,
6113 ctx->wait_event.events,
6114 &ctx->wait_event);
Willy Tarreau113d52b2020-01-10 09:20:26 +01006115 if (ctx->subs) {
6116 ctx->subs->events = 0;
6117 tasklet_wakeup(ctx->subs->tasklet);
Olivier Houchardea8dd942019-05-20 14:02:16 +02006118 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01006119
Olivier Houchard692c1d02019-05-23 18:41:47 +02006120 if (ctx->xprt->close)
6121 ctx->xprt->close(conn, ctx->xprt_ctx);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05006122#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +02006123 if (global_ssl.async) {
6124 OSSL_ASYNC_FD all_fd[32], afd;
6125 size_t num_all_fds = 0;
6126 int i;
6127
Olivier Houchard66ab4982019-02-26 18:37:15 +01006128 SSL_get_all_async_fds(ctx->ssl, NULL, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02006129 if (num_all_fds > 32) {
6130 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
6131 return;
6132 }
6133
Olivier Houchard66ab4982019-02-26 18:37:15 +01006134 SSL_get_all_async_fds(ctx->ssl, all_fd, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02006135
6136 /* If an async job is pending, we must try to
6137 to catch the end using polling before calling
6138 SSL_free */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006139 if (num_all_fds && SSL_waiting_for_async(ctx->ssl)) {
Emeric Brun3854e012017-05-17 20:42:48 +02006140 for (i=0 ; i < num_all_fds ; i++) {
6141 /* switch on an handler designed to
6142 * handle the SSL_free
6143 */
6144 afd = all_fd[i];
6145 fdtab[afd].iocb = ssl_async_fd_free;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006146 fdtab[afd].owner = ctx->ssl;
Emeric Brun3854e012017-05-17 20:42:48 +02006147 fd_want_recv(afd);
Emeric Brunce9e01c2017-05-31 10:02:53 +00006148 /* To ensure that the fd cache won't be used
6149 * and we'll catch a real RD event.
6150 */
6151 fd_cant_recv(afd);
Emeric Brun3854e012017-05-17 20:42:48 +02006152 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02006153 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01006154 pool_free(ssl_sock_ctx_pool, ctx);
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01006155 _HA_ATOMIC_ADD(&jobs, 1);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006156 return;
6157 }
Emeric Brun3854e012017-05-17 20:42:48 +02006158 /* Else we can remove the fds from the fdtab
6159 * and call SSL_free.
Willy Tarreau67672452020-08-26 11:44:17 +02006160 * note: we do a fd_stop_both and not a delete
Emeric Brun3854e012017-05-17 20:42:48 +02006161 * because the fd is owned by the engine.
6162 * the engine is responsible to close
6163 */
6164 for (i=0 ; i < num_all_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +02006165 fd_stop_both(all_fd[i]);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006166 }
6167#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01006168 SSL_free(ctx->ssl);
Olivier Houchard54907bb2019-12-19 15:02:39 +01006169 b_free(&ctx->early_buf);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02006170 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01006171 pool_free(ssl_sock_ctx_pool, ctx);
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01006172 _HA_ATOMIC_SUB(&sslconns, 1);
Emeric Brun46591952012-05-18 15:47:34 +02006173 }
Emeric Brun46591952012-05-18 15:47:34 +02006174}
6175
6176/* This function tries to perform a clean shutdown on an SSL connection, and in
6177 * any case, flags the connection as reusable if no handshake was in progress.
6178 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006179static void ssl_sock_shutw(struct connection *conn, void *xprt_ctx, int clean)
Emeric Brun46591952012-05-18 15:47:34 +02006180{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006181 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006182
Willy Tarreau911db9b2020-01-23 16:27:54 +01006183 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02006184 return;
Emmanuel Hocdet405ff312017-01-08 14:07:39 +01006185 if (!clean)
6186 /* don't sent notify on SSL_shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006187 SSL_set_quiet_shutdown(ctx->ssl, 1);
Emeric Brun46591952012-05-18 15:47:34 +02006188 /* no handshake was in progress, try a clean ssl shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006189 if (SSL_shutdown(ctx->ssl) <= 0) {
Emeric Brun644cde02012-12-14 11:21:13 +01006190 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02006191 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01006192 ERR_clear_error();
6193 }
Emeric Brun46591952012-05-18 15:47:34 +02006194}
6195
Emmanuel Hocdet96b78342017-10-31 15:46:07 +01006196
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05006197/* used for ppv2 pkey algo (can be used for logging) */
William Lallemandd4f946c2019-12-05 10:26:40 +01006198int ssl_sock_get_pkey_algo(struct connection *conn, struct buffer *out)
6199{
6200 struct ssl_sock_ctx *ctx;
6201 X509 *crt;
6202
6203 if (!ssl_sock_is_ssl(conn))
6204 return 0;
6205
6206 ctx = conn->xprt_ctx;
6207
6208 crt = SSL_get_certificate(ctx->ssl);
6209 if (!crt)
6210 return 0;
6211
6212 return cert_get_pkey_algo(crt, out);
6213}
6214
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006215/* used for ppv2 cert signature (can be used for logging) */
6216const char *ssl_sock_get_cert_sig(struct connection *conn)
6217{
Christopher Faulet82004142019-09-10 10:12:03 +02006218 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006219
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006220 __OPENSSL_110_CONST__ ASN1_OBJECT *algorithm;
6221 X509 *crt;
6222
6223 if (!ssl_sock_is_ssl(conn))
6224 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006225 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006226 crt = SSL_get_certificate(ctx->ssl);
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006227 if (!crt)
6228 return NULL;
6229 X509_ALGOR_get0(&algorithm, NULL, NULL, X509_get0_tbs_sigalg(crt));
6230 return OBJ_nid2sn(OBJ_obj2nid(algorithm));
6231}
6232
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006233/* used for ppv2 authority */
6234const char *ssl_sock_get_sni(struct connection *conn)
6235{
6236#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006237 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006238
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006239 if (!ssl_sock_is_ssl(conn))
6240 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006241 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006242 return SSL_get_servername(ctx->ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006243#else
Olivier Houchard66ab4982019-02-26 18:37:15 +01006244 return NULL;
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006245#endif
6246}
6247
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006248/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006249const char *ssl_sock_get_cipher_name(struct connection *conn)
6250{
Christopher Faulet82004142019-09-10 10:12:03 +02006251 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006252
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006253 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006254 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006255 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006256 return SSL_get_cipher_name(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006257}
6258
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006259/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006260const char *ssl_sock_get_proto_version(struct connection *conn)
6261{
Christopher Faulet82004142019-09-10 10:12:03 +02006262 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006263
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006264 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006265 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006266 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006267 return SSL_get_version(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006268}
6269
Olivier Houchardab28a322018-12-21 19:45:40 +01006270void ssl_sock_set_alpn(struct connection *conn, const unsigned char *alpn, int len)
6271{
6272#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Christopher Faulet82004142019-09-10 10:12:03 +02006273 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006274
Olivier Houcharde488ea82019-06-28 14:10:33 +02006275 if (!ssl_sock_is_ssl(conn))
6276 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006277 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006278 SSL_set_alpn_protos(ctx->ssl, alpn, len);
Olivier Houchardab28a322018-12-21 19:45:40 +01006279#endif
6280}
6281
Willy Tarreau119a4082016-12-22 21:58:38 +01006282/* Sets advertised SNI for outgoing connections. Please set <hostname> to NULL
6283 * to disable SNI.
6284 */
Willy Tarreau63076412015-07-10 11:33:32 +02006285void ssl_sock_set_servername(struct connection *conn, const char *hostname)
6286{
6287#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006288 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006289
Willy Tarreau119a4082016-12-22 21:58:38 +01006290 char *prev_name;
6291
Willy Tarreau63076412015-07-10 11:33:32 +02006292 if (!ssl_sock_is_ssl(conn))
6293 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006294 ctx = conn->xprt_ctx;
Willy Tarreau63076412015-07-10 11:33:32 +02006295
Willy Tarreau119a4082016-12-22 21:58:38 +01006296 /* if the SNI changes, we must destroy the reusable context so that a
6297 * new connection will present a new SNI. As an optimization we could
6298 * later imagine having a small cache of ssl_ctx to hold a few SNI per
6299 * server.
6300 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006301 prev_name = (char *)SSL_get_servername(ctx->ssl, TLSEXT_NAMETYPE_host_name);
Willy Tarreau119a4082016-12-22 21:58:38 +01006302 if ((!prev_name && hostname) ||
6303 (prev_name && (!hostname || strcmp(hostname, prev_name) != 0)))
Olivier Houchard66ab4982019-02-26 18:37:15 +01006304 SSL_set_session(ctx->ssl, NULL);
Willy Tarreau119a4082016-12-22 21:58:38 +01006305
Olivier Houchard66ab4982019-02-26 18:37:15 +01006306 SSL_set_tlsext_host_name(ctx->ssl, hostname);
Willy Tarreau63076412015-07-10 11:33:32 +02006307#endif
6308}
6309
Emeric Brun0abf8362014-06-24 18:26:41 +02006310/* Extract peer certificate's common name into the chunk dest
6311 * Returns
6312 * the len of the extracted common name
6313 * or 0 if no CN found in DN
6314 * or -1 on error case (i.e. no peer certificate)
6315 */
Willy Tarreau83061a82018-07-13 11:56:34 +02006316int ssl_sock_get_remote_common_name(struct connection *conn,
6317 struct buffer *dest)
David Safb76832014-05-08 23:42:08 -04006318{
Christopher Faulet82004142019-09-10 10:12:03 +02006319 struct ssl_sock_ctx *ctx;
David Safb76832014-05-08 23:42:08 -04006320 X509 *crt = NULL;
6321 X509_NAME *name;
David Safb76832014-05-08 23:42:08 -04006322 const char find_cn[] = "CN";
Willy Tarreau83061a82018-07-13 11:56:34 +02006323 const struct buffer find_cn_chunk = {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02006324 .area = (char *)&find_cn,
6325 .data = sizeof(find_cn)-1
David Safb76832014-05-08 23:42:08 -04006326 };
Emeric Brun0abf8362014-06-24 18:26:41 +02006327 int result = -1;
David Safb76832014-05-08 23:42:08 -04006328
6329 if (!ssl_sock_is_ssl(conn))
Emeric Brun0abf8362014-06-24 18:26:41 +02006330 goto out;
Christopher Faulet82004142019-09-10 10:12:03 +02006331 ctx = conn->xprt_ctx;
David Safb76832014-05-08 23:42:08 -04006332
6333 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006334 crt = SSL_get_peer_certificate(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006335 if (!crt)
6336 goto out;
6337
6338 name = X509_get_subject_name(crt);
6339 if (!name)
6340 goto out;
David Safb76832014-05-08 23:42:08 -04006341
Emeric Brun0abf8362014-06-24 18:26:41 +02006342 result = ssl_sock_get_dn_entry(name, &find_cn_chunk, 1, dest);
6343out:
David Safb76832014-05-08 23:42:08 -04006344 if (crt)
6345 X509_free(crt);
6346
6347 return result;
6348}
6349
Dave McCowan328fb582014-07-30 10:39:13 -04006350/* returns 1 if client passed a certificate for this session, 0 if not */
6351int ssl_sock_get_cert_used_sess(struct connection *conn)
6352{
Christopher Faulet82004142019-09-10 10:12:03 +02006353 struct ssl_sock_ctx *ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006354 X509 *crt = NULL;
6355
6356 if (!ssl_sock_is_ssl(conn))
6357 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006358 ctx = conn->xprt_ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006359
6360 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006361 crt = SSL_get_peer_certificate(ctx->ssl);
Dave McCowan328fb582014-07-30 10:39:13 -04006362 if (!crt)
6363 return 0;
6364
6365 X509_free(crt);
6366 return 1;
6367}
6368
6369/* returns 1 if client passed a certificate for this connection, 0 if not */
6370int ssl_sock_get_cert_used_conn(struct connection *conn)
David Safb76832014-05-08 23:42:08 -04006371{
Christopher Faulet82004142019-09-10 10:12:03 +02006372 struct ssl_sock_ctx *ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006373
David Safb76832014-05-08 23:42:08 -04006374 if (!ssl_sock_is_ssl(conn))
6375 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006376 ctx = conn->xprt_ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006377 return SSL_SOCK_ST_FL_VERIFY_DONE & ctx->xprt_st ? 1 : 0;
David Safb76832014-05-08 23:42:08 -04006378}
6379
6380/* returns result from SSL verify */
6381unsigned int ssl_sock_get_verify_result(struct connection *conn)
6382{
Christopher Faulet82004142019-09-10 10:12:03 +02006383 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006384
David Safb76832014-05-08 23:42:08 -04006385 if (!ssl_sock_is_ssl(conn))
6386 return (unsigned int)X509_V_ERR_APPLICATION_VERIFICATION;
Christopher Faulet82004142019-09-10 10:12:03 +02006387 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006388 return (unsigned int)SSL_get_verify_result(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006389}
6390
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006391/* Returns the application layer protocol name in <str> and <len> when known.
6392 * Zero is returned if the protocol name was not found, otherwise non-zero is
6393 * returned. The string is allocated in the SSL context and doesn't have to be
6394 * freed by the caller. NPN is also checked if available since older versions
6395 * of openssl (1.0.1) which are more common in field only support this one.
6396 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006397static int ssl_sock_get_alpn(const struct connection *conn, void *xprt_ctx, const char **str, int *len)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006398{
Olivier Houchard66ab4982019-02-26 18:37:15 +01006399#if defined(TLSEXT_TYPE_application_layer_protocol_negotiation) || \
6400 defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006401 struct ssl_sock_ctx *ctx = xprt_ctx;
6402 if (!ctx)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006403 return 0;
6404
6405 *str = NULL;
6406
6407#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Olivier Houchard66ab4982019-02-26 18:37:15 +01006408 SSL_get0_alpn_selected(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006409 if (*str)
6410 return 1;
6411#endif
Bernard Spil13c53f82018-02-15 13:34:58 +01006412#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006413 SSL_get0_next_proto_negotiated(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006414 if (*str)
6415 return 1;
6416#endif
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006417#endif
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006418 return 0;
6419}
6420
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006421/* "issuers-chain-path" load chain certificate in global */
William Lallemanddad31052020-05-14 17:47:32 +02006422int ssl_load_global_issuer_from_BIO(BIO *in, char *fp, char **err)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006423{
6424 X509 *ca;
6425 X509_NAME *name = NULL;
6426 ASN1_OCTET_STRING *skid = NULL;
6427 STACK_OF(X509) *chain = NULL;
6428 struct issuer_chain *issuer;
6429 struct eb64_node *node;
6430 char *path;
6431 u64 key;
6432 int ret = 0;
6433
6434 while ((ca = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
6435 if (chain == NULL) {
6436 chain = sk_X509_new_null();
6437 skid = X509_get_ext_d2i(ca, NID_subject_key_identifier, NULL, NULL);
6438 name = X509_get_subject_name(ca);
6439 }
6440 if (!sk_X509_push(chain, ca)) {
6441 X509_free(ca);
6442 goto end;
6443 }
6444 }
6445 if (!chain) {
6446 memprintf(err, "unable to load issuers-chain %s : pem certificate not found.\n", fp);
6447 goto end;
6448 }
6449 if (!skid) {
6450 memprintf(err, "unable to load issuers-chain %s : SubjectKeyIdentifier not found.\n", fp);
6451 goto end;
6452 }
6453 if (!name) {
6454 memprintf(err, "unable to load issuers-chain %s : SubjectName not found.\n", fp);
6455 goto end;
6456 }
Dragan Dosen967e7e72020-12-22 13:22:34 +01006457 key = XXH3(ASN1_STRING_get0_data(skid), ASN1_STRING_length(skid), 0);
William Lallemande0f3fd52020-02-25 14:53:06 +01006458 for (node = eb64_lookup(&cert_issuer_tree, key); node; node = eb64_next(node)) {
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006459 issuer = container_of(node, typeof(*issuer), node);
6460 if (!X509_NAME_cmp(name, X509_get_subject_name(sk_X509_value(issuer->chain, 0)))) {
6461 memprintf(err, "duplicate issuers-chain %s: %s already in store\n", fp, issuer->path);
6462 goto end;
6463 }
6464 }
6465 issuer = calloc(1, sizeof *issuer);
6466 path = strdup(fp);
6467 if (!issuer || !path) {
6468 free(issuer);
6469 free(path);
6470 goto end;
6471 }
6472 issuer->node.key = key;
6473 issuer->path = path;
6474 issuer->chain = chain;
6475 chain = NULL;
William Lallemande0f3fd52020-02-25 14:53:06 +01006476 eb64_insert(&cert_issuer_tree, &issuer->node);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006477 ret = 1;
6478 end:
6479 if (skid)
6480 ASN1_OCTET_STRING_free(skid);
6481 if (chain)
6482 sk_X509_pop_free(chain, X509_free);
6483 return ret;
6484}
6485
William Lallemandda8584c2020-05-14 10:14:37 +02006486 struct issuer_chain* ssl_get0_issuer_chain(X509 *cert)
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006487{
6488 AUTHORITY_KEYID *akid;
6489 struct issuer_chain *issuer = NULL;
6490
6491 akid = X509_get_ext_d2i(cert, NID_authority_key_identifier, NULL, NULL);
William Lallemandf69cd682020-11-19 16:24:13 +01006492 if (akid && akid->keyid) {
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006493 struct eb64_node *node;
6494 u64 hk;
Dragan Dosen967e7e72020-12-22 13:22:34 +01006495 hk = XXH3(ASN1_STRING_get0_data(akid->keyid), ASN1_STRING_length(akid->keyid), 0);
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006496 for (node = eb64_lookup(&cert_issuer_tree, hk); node; node = eb64_next(node)) {
6497 struct issuer_chain *ti = container_of(node, typeof(*issuer), node);
6498 if (X509_check_issued(sk_X509_value(ti->chain, 0), cert) == X509_V_OK) {
6499 issuer = ti;
6500 break;
6501 }
6502 }
6503 AUTHORITY_KEYID_free(akid);
6504 }
6505 return issuer;
6506}
6507
William Lallemanddad31052020-05-14 17:47:32 +02006508void ssl_free_global_issuers(void)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006509{
6510 struct eb64_node *node, *back;
6511 struct issuer_chain *issuer;
6512
William Lallemande0f3fd52020-02-25 14:53:06 +01006513 node = eb64_first(&cert_issuer_tree);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006514 while (node) {
6515 issuer = container_of(node, typeof(*issuer), node);
6516 back = eb64_next(node);
6517 eb64_delete(node);
6518 free(issuer->path);
6519 sk_X509_pop_free(issuer->chain, X509_free);
6520 free(issuer);
6521 node = back;
6522 }
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006523}
6524
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006525#ifndef OPENSSL_NO_ENGINE
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006526static int ssl_check_async_engine_count(void) {
Christopher Fauletfc633b62020-11-06 15:24:23 +01006527 int err_code = ERR_NONE;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006528
Emeric Brun3854e012017-05-17 20:42:48 +02006529 if (global_ssl.async && (openssl_engines_initialized > 32)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01006530 ha_alert("ssl-mode-async only supports a maximum of 32 engines.\n");
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006531 err_code = ERR_ABORT;
6532 }
6533 return err_code;
Willy Tarreau8c3b0fd2016-12-21 22:44:46 +01006534}
Willy Tarreau9ceda382016-12-21 23:13:03 +01006535#endif
6536
Willy Tarreaude5675a2021-01-20 14:41:29 +01006537/* "show fd" helper to dump ssl internals. Warning: the output buffer is often
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006538 * the common trash! It returns non-zero if the connection entry looks suspicious.
Willy Tarreaude5675a2021-01-20 14:41:29 +01006539 */
Willy Tarreau8050efe2021-01-21 08:26:06 +01006540static int ssl_sock_show_fd(struct buffer *buf, const struct connection *conn, const void *ctx)
Willy Tarreaude5675a2021-01-20 14:41:29 +01006541{
6542 const struct ssl_sock_ctx *sctx = ctx;
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006543 int ret = 0;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006544
6545 if (!sctx)
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006546 return ret;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006547
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006548 if (sctx->conn != conn) {
6549 chunk_appendf(&trash, " xctx.conn=%p(BOGUS)", sctx->conn);
6550 ret = 1;
6551 }
Willy Tarreaude5675a2021-01-20 14:41:29 +01006552 chunk_appendf(&trash, " xctx.st=%d", sctx->xprt_st);
6553
6554 if (sctx->xprt) {
6555 chunk_appendf(&trash, " .xprt=%s", sctx->xprt->name);
6556 if (sctx->xprt_ctx)
6557 chunk_appendf(&trash, " .xctx=%p", sctx->xprt_ctx);
6558 }
6559
6560 chunk_appendf(&trash, " .wait.ev=%d", sctx->wait_event.events);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006561
6562 /* as soon as a shutdown is reported the lower layer unregisters its
6563 * subscriber, so the situations below are transient and rare enough to
6564 * be reported as suspicious. In any case they shouldn't last.
6565 */
6566 if ((sctx->wait_event.events & 1) && (conn->flags & (CO_FL_SOCK_RD_SH|CO_FL_ERROR)))
6567 ret = 1;
6568 if ((sctx->wait_event.events & 2) && (conn->flags & (CO_FL_SOCK_WR_SH|CO_FL_ERROR)))
6569 ret = 1;
6570
Willy Tarreaude5675a2021-01-20 14:41:29 +01006571 chunk_appendf(&trash, " .subs=%p", sctx->subs);
6572 if (sctx->subs) {
6573 chunk_appendf(&trash, "(ev=%d tl=%p", sctx->subs->events, sctx->subs->tasklet);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006574 if (sctx->subs->tasklet->calls >= 1000000)
6575 ret = 1;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006576 chunk_appendf(&trash, " tl.calls=%d tl.ctx=%p tl.fct=",
6577 sctx->subs->tasklet->calls,
6578 sctx->subs->tasklet->context);
6579 resolve_sym_name(&trash, NULL, sctx->subs->tasklet->process);
6580 chunk_appendf(&trash, ")");
6581 }
6582 chunk_appendf(&trash, " .sent_early=%d", sctx->sent_early_data);
6583 chunk_appendf(&trash, " .early_in=%d", (int)sctx->early_buf.data);
Willy Tarreau4bd5d632021-01-21 08:53:50 +01006584 return ret;
Willy Tarreaude5675a2021-01-20 14:41:29 +01006585}
6586
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006587#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
William Lallemand32af2032016-10-29 18:09:35 +02006588/* This function is used with TLS ticket keys management. It permits to browse
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006589 * each reference. The variable <ref> must point to the current node's list
6590 * element (which starts by the root), and <end> must point to the root node.
William Lallemand32af2032016-10-29 18:09:35 +02006591 */
William Lallemand32af2032016-10-29 18:09:35 +02006592static inline
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006593struct tls_keys_ref *tlskeys_list_get_next(struct list *ref, struct list *end)
William Lallemand32af2032016-10-29 18:09:35 +02006594{
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006595 /* Get next list entry. */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006596 ref = ref->n;
William Lallemand32af2032016-10-29 18:09:35 +02006597
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006598 /* If the entry is the last of the list, return NULL. */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006599 if (ref == end)
Tim Duesterhus2c7bb332021-01-03 01:29:55 +01006600 return NULL;
William Lallemand32af2032016-10-29 18:09:35 +02006601
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006602 return LIST_ELEM(ref, struct tls_keys_ref *, list);
William Lallemand32af2032016-10-29 18:09:35 +02006603}
6604
6605static inline
6606struct tls_keys_ref *tlskeys_ref_lookup_ref(const char *reference)
6607{
6608 int id;
6609 char *error;
6610
6611 /* If the reference starts by a '#', this is numeric id. */
6612 if (reference[0] == '#') {
6613 /* Try to convert the numeric id. If the conversion fails, the lookup fails. */
6614 id = strtol(reference + 1, &error, 10);
6615 if (*error != '\0')
6616 return NULL;
6617
6618 /* Perform the unique id lookup. */
6619 return tlskeys_ref_lookupid(id);
6620 }
6621
6622 /* Perform the string lookup. */
6623 return tlskeys_ref_lookup(reference);
6624}
6625#endif
6626
6627
6628#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6629
6630static int cli_io_handler_tlskeys_files(struct appctx *appctx);
6631
6632static inline int cli_io_handler_tlskeys_entries(struct appctx *appctx) {
6633 return cli_io_handler_tlskeys_files(appctx);
6634}
6635
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006636/* dumps all tls keys. Relies on cli.i0 (non-null = only list file names), cli.i1
6637 * (next index to be dumped), and cli.p0 (next key reference).
6638 */
William Lallemand32af2032016-10-29 18:09:35 +02006639static int cli_io_handler_tlskeys_files(struct appctx *appctx) {
6640
6641 struct stream_interface *si = appctx->owner;
6642
6643 switch (appctx->st2) {
6644 case STAT_ST_INIT:
6645 /* Display the column headers. If the message cannot be sent,
Joseph Herlant017b3da2018-11-15 09:07:59 -08006646 * quit the function with returning 0. The function is called
William Lallemand32af2032016-10-29 18:09:35 +02006647 * later and restart at the state "STAT_ST_INIT".
6648 */
6649 chunk_reset(&trash);
6650
6651 if (appctx->io_handler == cli_io_handler_tlskeys_entries)
6652 chunk_appendf(&trash, "# id secret\n");
6653 else
6654 chunk_appendf(&trash, "# id (file)\n");
6655
Willy Tarreau06d80a92017-10-19 14:32:15 +02006656 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01006657 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006658 return 0;
6659 }
6660
William Lallemand32af2032016-10-29 18:09:35 +02006661 /* Now, we start the browsing of the references lists.
6662 * Note that the following call to LIST_ELEM return bad pointer. The only
6663 * available field of this pointer is <list>. It is used with the function
6664 * tlskeys_list_get_next() for retruning the first available entry
6665 */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006666 if (appctx->ctx.cli.p0 == NULL)
6667 appctx->ctx.cli.p0 = tlskeys_list_get_next(&tlskeys_reference, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006668
6669 appctx->st2 = STAT_ST_LIST;
6670 /* fall through */
6671
6672 case STAT_ST_LIST:
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006673 while (appctx->ctx.cli.p0) {
6674 struct tls_keys_ref *ref = appctx->ctx.cli.p0;
William Lallemand32af2032016-10-29 18:09:35 +02006675
6676 chunk_reset(&trash);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006677 if (appctx->io_handler == cli_io_handler_tlskeys_entries && appctx->ctx.cli.i1 == 0)
William Lallemand32af2032016-10-29 18:09:35 +02006678 chunk_appendf(&trash, "# ");
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006679
6680 if (appctx->ctx.cli.i1 == 0)
6681 chunk_appendf(&trash, "%d (%s)\n", ref->unique_id, ref->filename);
6682
William Lallemand32af2032016-10-29 18:09:35 +02006683 if (appctx->io_handler == cli_io_handler_tlskeys_entries) {
Christopher Faulet16f45c82018-02-16 11:23:49 +01006684 int head;
6685
6686 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
6687 head = ref->tls_ticket_enc_index;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006688 while (appctx->ctx.cli.i1 < TLS_TICKETS_NO) {
Willy Tarreau83061a82018-07-13 11:56:34 +02006689 struct buffer *t2 = get_trash_chunk();
William Lallemand32af2032016-10-29 18:09:35 +02006690
6691 chunk_reset(t2);
6692 /* should never fail here because we dump only a key in the t2 buffer */
Emeric Brun9e754772019-01-10 17:51:55 +01006693 if (ref->key_size_bits == 128) {
6694 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6695 sizeof(struct tls_sess_key_128),
6696 t2->area, t2->size);
6697 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6698 t2->area);
6699 }
6700 else if (ref->key_size_bits == 256) {
6701 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6702 sizeof(struct tls_sess_key_256),
6703 t2->area, t2->size);
6704 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6705 t2->area);
6706 }
6707 else {
6708 /* This case should never happen */
6709 chunk_appendf(&trash, "%d.%d <unknown>\n", ref->unique_id, appctx->ctx.cli.i1);
6710 }
William Lallemand32af2032016-10-29 18:09:35 +02006711
Willy Tarreau06d80a92017-10-19 14:32:15 +02006712 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006713 /* let's try again later from this stream. We add ourselves into
6714 * this stream's users so that it can remove us upon termination.
6715 */
Christopher Faulet16f45c82018-02-16 11:23:49 +01006716 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreaudb398432018-11-15 11:08:52 +01006717 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006718 return 0;
6719 }
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006720 appctx->ctx.cli.i1++;
William Lallemand32af2032016-10-29 18:09:35 +02006721 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01006722 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006723 appctx->ctx.cli.i1 = 0;
William Lallemand32af2032016-10-29 18:09:35 +02006724 }
Willy Tarreau06d80a92017-10-19 14:32:15 +02006725 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006726 /* let's try again later from this stream. We add ourselves into
6727 * this stream's users so that it can remove us upon termination.
6728 */
Willy Tarreaudb398432018-11-15 11:08:52 +01006729 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006730 return 0;
6731 }
6732
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006733 if (appctx->ctx.cli.i0 == 0) /* don't display everything if not necessary */
William Lallemand32af2032016-10-29 18:09:35 +02006734 break;
6735
6736 /* get next list entry and check the end of the list */
Willy Tarreaub6fc5242021-01-05 10:44:30 +01006737 appctx->ctx.cli.p0 = tlskeys_list_get_next(&ref->list, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006738 }
6739
6740 appctx->st2 = STAT_ST_FIN;
6741 /* fall through */
6742
6743 default:
6744 appctx->st2 = STAT_ST_FIN;
6745 return 1;
6746 }
6747 return 0;
6748}
6749
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006750/* sets cli.i0 to non-zero if only file lists should be dumped */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006751static int cli_parse_show_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006752{
William Lallemand32af2032016-10-29 18:09:35 +02006753 /* no parameter, shows only file list */
6754 if (!*args[2]) {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006755 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006756 appctx->io_handler = cli_io_handler_tlskeys_files;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006757 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006758 }
6759
6760 if (args[2][0] == '*') {
6761 /* list every TLS ticket keys */
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006762 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006763 } else {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006764 appctx->ctx.cli.p0 = tlskeys_ref_lookup_ref(args[2]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006765 if (!appctx->ctx.cli.p0)
6766 return cli_err(appctx, "'show tls-keys' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006767 }
William Lallemand32af2032016-10-29 18:09:35 +02006768 appctx->io_handler = cli_io_handler_tlskeys_entries;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006769 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006770}
6771
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006772static int cli_parse_set_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006773{
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006774 struct tls_keys_ref *ref;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006775 int ret;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006776
William Lallemand32af2032016-10-29 18:09:35 +02006777 /* Expect two parameters: the filename and the new new TLS key in encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006778 if (!*args[3] || !*args[4])
6779 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 +02006780
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006781 ref = tlskeys_ref_lookup_ref(args[3]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006782 if (!ref)
6783 return cli_err(appctx, "'set ssl tls-key' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006784
Willy Tarreau1c913e42018-08-22 05:26:57 +02006785 ret = base64dec(args[4], strlen(args[4]), trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02006786 if (ret < 0)
6787 return cli_err(appctx, "'set ssl tls-key' received invalid base64 encoded TLS key.\n");
Emeric Brun9e754772019-01-10 17:51:55 +01006788
Willy Tarreau1c913e42018-08-22 05:26:57 +02006789 trash.data = ret;
Willy Tarreau9d008692019-08-09 11:21:01 +02006790 if (ssl_sock_update_tlskey_ref(ref, &trash) < 0)
6791 return cli_err(appctx, "'set ssl tls-key' received a key of wrong size.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006792
Willy Tarreau9d008692019-08-09 11:21:01 +02006793 return cli_msg(appctx, LOG_INFO, "TLS ticket key updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02006794}
William Lallemandd4f946c2019-12-05 10:26:40 +01006795#endif
William Lallemand419e6342020-04-08 12:05:39 +02006796
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006797static int cli_parse_set_ocspresponse(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006798{
6799#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
6800 char *err = NULL;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006801 int i, j, ret;
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006802
6803 if (!payload)
6804 payload = args[3];
William Lallemand32af2032016-10-29 18:09:35 +02006805
6806 /* Expect one parameter: the new response in base64 encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006807 if (!*payload)
6808 return cli_err(appctx, "'set ssl ocsp-response' expects response in base64 encoding.\n");
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006809
6810 /* remove \r and \n from the payload */
6811 for (i = 0, j = 0; payload[i]; i++) {
6812 if (payload[i] == '\r' || payload[i] == '\n')
6813 continue;
6814 payload[j++] = payload[i];
6815 }
6816 payload[j] = 0;
William Lallemand32af2032016-10-29 18:09:35 +02006817
Willy Tarreau1c913e42018-08-22 05:26:57 +02006818 ret = base64dec(payload, j, trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02006819 if (ret < 0)
6820 return cli_err(appctx, "'set ssl ocsp-response' received invalid base64 encoded response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006821
Willy Tarreau1c913e42018-08-22 05:26:57 +02006822 trash.data = ret;
William Lallemand32af2032016-10-29 18:09:35 +02006823 if (ssl_sock_update_ocsp_response(&trash, &err)) {
Willy Tarreau9d008692019-08-09 11:21:01 +02006824 if (err)
6825 return cli_dynerr(appctx, memprintf(&err, "%s.\n", err));
6826 else
6827 return cli_err(appctx, "Failed to update OCSP response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006828 }
Willy Tarreau9d008692019-08-09 11:21:01 +02006829
6830 return cli_msg(appctx, LOG_INFO, "OCSP Response updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02006831#else
Willy Tarreau9d008692019-08-09 11:21:01 +02006832 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 +02006833#endif
6834
Elliot Otchet71f82972020-01-15 08:12:14 -05006835}
6836
William Lallemand32af2032016-10-29 18:09:35 +02006837/* register cli keywords */
6838static struct cli_kw_list cli_kws = {{ },{
6839#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6840 { { "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 },
Lukas Tribusf4bbc432017-10-24 12:26:31 +02006841 { { "set", "ssl", "tls-key", NULL }, "set ssl tls-key [id|keyfile] <tlskey>: set the next TLS key for the <id> or <keyfile> listener to <tlskey>", cli_parse_set_tlskeys, NULL },
William Lallemand32af2032016-10-29 18:09:35 +02006842#endif
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01006843 { { "set", "ssl", "ocsp-response", NULL }, NULL, cli_parse_set_ocspresponse, NULL },
William Lallemand32af2032016-10-29 18:09:35 +02006844 { { NULL }, NULL, NULL, NULL }
6845}};
6846
Willy Tarreau0108d902018-11-25 19:14:37 +01006847INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
William Lallemand32af2032016-10-29 18:09:35 +02006848
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02006849/* transport-layer operations for SSL sockets */
William Lallemanddad31052020-05-14 17:47:32 +02006850struct xprt_ops ssl_sock = {
Emeric Brun46591952012-05-18 15:47:34 +02006851 .snd_buf = ssl_sock_from_buf,
6852 .rcv_buf = ssl_sock_to_buf,
Olivier Houcharddf357842019-03-21 16:30:07 +01006853 .subscribe = ssl_subscribe,
6854 .unsubscribe = ssl_unsubscribe,
Olivier Houchard5149b592019-05-23 17:47:36 +02006855 .remove_xprt = ssl_remove_xprt,
Olivier Houchard2e055482019-05-27 19:50:12 +02006856 .add_xprt = ssl_add_xprt,
Emeric Brun46591952012-05-18 15:47:34 +02006857 .rcv_pipe = NULL,
6858 .snd_pipe = NULL,
6859 .shutr = NULL,
6860 .shutw = ssl_sock_shutw,
6861 .close = ssl_sock_close,
6862 .init = ssl_sock_init,
Willy Tarreau55d37912016-12-21 23:38:39 +01006863 .prepare_bind_conf = ssl_sock_prepare_bind_conf,
Willy Tarreau795cdab2016-12-22 17:30:54 +01006864 .destroy_bind_conf = ssl_sock_destroy_bind_conf,
Willy Tarreau17d45382016-12-22 21:16:08 +01006865 .prepare_srv = ssl_sock_prepare_srv_ctx,
6866 .destroy_srv = ssl_sock_free_srv_ctx,
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006867 .get_alpn = ssl_sock_get_alpn,
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02006868 .takeover = ssl_takeover,
Willy Tarreau8e0bb0a2016-11-24 16:58:12 +01006869 .name = "SSL",
Willy Tarreaude5675a2021-01-20 14:41:29 +01006870 .show_fd = ssl_sock_show_fd,
Emeric Brun46591952012-05-18 15:47:34 +02006871};
6872
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006873enum act_return ssl_action_wait_for_hs(struct act_rule *rule, struct proxy *px,
6874 struct session *sess, struct stream *s, int flags)
6875{
6876 struct connection *conn;
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006877 struct conn_stream *cs;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006878
6879 conn = objt_conn(sess->origin);
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006880 cs = objt_cs(s->si[0].end);
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006881
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006882 if (conn && cs) {
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006883 if (conn->flags & (CO_FL_EARLY_SSL_HS | CO_FL_SSL_WAIT_HS)) {
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006884 cs->flags |= CS_FL_WAIT_FOR_HS;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006885 s->req.flags |= CF_READ_NULL;
6886 return ACT_RET_YIELD;
6887 }
6888 }
6889 return (ACT_RET_CONT);
6890}
6891
6892static enum act_parse_ret ssl_parse_wait_for_hs(const char **args, int *orig_arg, struct proxy *px, struct act_rule *rule, char **err)
6893{
6894 rule->action_ptr = ssl_action_wait_for_hs;
6895
6896 return ACT_RET_PRS_OK;
6897}
6898
6899static struct action_kw_list http_req_actions = {ILH, {
6900 { "wait-for-handshake", ssl_parse_wait_for_hs },
6901 { /* END */ }
6902}};
6903
Willy Tarreau0108d902018-11-25 19:14:37 +01006904INITCALL1(STG_REGISTER, http_req_keywords_register, &http_req_actions);
6905
Willy Tarreau5db847a2019-05-09 14:13:35 +02006906#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01006907
6908static void ssl_sock_sctl_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6909{
6910 if (ptr) {
6911 chunk_destroy(ptr);
6912 free(ptr);
6913 }
6914}
6915
6916#endif
William Lallemand76b4a122020-08-04 17:41:39 +02006917
6918#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
6919static void ssl_sock_ocsp_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6920{
6921 struct ocsp_cbk_arg *ocsp_arg;
6922
6923 if (ptr) {
6924 ocsp_arg = ptr;
6925
6926 if (ocsp_arg->is_single) {
6927 ssl_sock_free_ocsp(ocsp_arg->s_ocsp);
6928 ocsp_arg->s_ocsp = NULL;
6929 } else {
6930 int i;
6931
6932 for (i = 0; i < SSL_SOCK_NUM_KEYTYPES; i++) {
6933 ssl_sock_free_ocsp(ocsp_arg->m_ocsp[i]);
6934 ocsp_arg->m_ocsp[i] = NULL;
6935 }
6936 }
6937 free(ocsp_arg);
6938 }
6939}
6940#endif
6941
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01006942static void ssl_sock_capture_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6943{
Willy Tarreaubafbe012017-11-24 17:34:44 +01006944 pool_free(pool_head_ssl_capture, ptr);
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01006945}
William Lallemand7d42ef52020-07-06 11:41:30 +02006946
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05006947#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02006948static void ssl_sock_keylog_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6949{
6950 struct ssl_keylog *keylog;
6951
6952 if (!ptr)
6953 return;
6954
6955 keylog = ptr;
6956
6957 pool_free(pool_head_ssl_keylog_str, keylog->client_random);
6958 pool_free(pool_head_ssl_keylog_str, keylog->client_early_traffic_secret);
6959 pool_free(pool_head_ssl_keylog_str, keylog->client_handshake_traffic_secret);
6960 pool_free(pool_head_ssl_keylog_str, keylog->server_handshake_traffic_secret);
6961 pool_free(pool_head_ssl_keylog_str, keylog->client_traffic_secret_0);
6962 pool_free(pool_head_ssl_keylog_str, keylog->server_traffic_secret_0);
6963 pool_free(pool_head_ssl_keylog_str, keylog->exporter_secret);
6964 pool_free(pool_head_ssl_keylog_str, keylog->early_exporter_secret);
6965
6966 pool_free(pool_head_ssl_keylog, ptr);
6967}
6968#endif
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01006969
Emeric Brun46591952012-05-18 15:47:34 +02006970__attribute__((constructor))
Willy Tarreau92faadf2012-10-10 23:04:25 +02006971static void __ssl_sock_init(void)
6972{
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006973#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02006974 STACK_OF(SSL_COMP)* cm;
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05006975 int n;
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006976#endif
Emeric Brun46591952012-05-18 15:47:34 +02006977
Willy Tarreauef934602016-12-22 23:12:01 +01006978 if (global_ssl.listen_default_ciphers)
6979 global_ssl.listen_default_ciphers = strdup(global_ssl.listen_default_ciphers);
6980 if (global_ssl.connect_default_ciphers)
6981 global_ssl.connect_default_ciphers = strdup(global_ssl.connect_default_ciphers);
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05006982#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02006983 if (global_ssl.listen_default_ciphersuites)
6984 global_ssl.listen_default_ciphersuites = strdup(global_ssl.listen_default_ciphersuites);
6985 if (global_ssl.connect_default_ciphersuites)
6986 global_ssl.connect_default_ciphersuites = strdup(global_ssl.connect_default_ciphersuites);
6987#endif
Willy Tarreau610f04b2014-02-13 11:36:41 +01006988
Willy Tarreau13e14102016-12-22 20:25:26 +01006989 xprt_register(XPRT_SSL, &ssl_sock);
Willy Tarreau9a1ab082019-05-09 13:26:41 +02006990#if HA_OPENSSL_VERSION_NUMBER < 0x10100000L
Emeric Brun46591952012-05-18 15:47:34 +02006991 SSL_library_init();
Rosen Penev68185952018-12-14 08:47:02 -08006992#endif
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006993#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02006994 cm = SSL_COMP_get_compression_methods();
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05006995 n = sk_SSL_COMP_num(cm);
6996 while (n--) {
6997 (void) sk_SSL_COMP_pop(cm);
6998 }
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006999#endif
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05007000
Willy Tarreau5db847a2019-05-09 14:13:35 +02007001#if defined(USE_THREAD) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Emeric Brun821bb9b2017-06-15 16:37:39 +02007002 ssl_locking_init();
7003#endif
Willy Tarreau5db847a2019-05-09 14:13:35 +02007004#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01007005 sctl_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_sctl_free_func);
7006#endif
William Lallemand76b4a122020-08-04 17:41:39 +02007007
7008#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
7009 ocsp_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_ocsp_free_func);
7010#endif
7011
Thierry FOURNIER28962c92018-06-17 21:37:05 +02007012 ssl_app_data_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
Thierry FOURNIER16ff0502018-06-17 21:33:01 +02007013 ssl_capture_ptr_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_capture_free_func);
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05007014#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02007015 ssl_keylog_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_keylog_free_func);
7016#endif
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007017#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00007018 ENGINE_load_builtin_engines();
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00007019 hap_register_post_check(ssl_check_async_engine_count);
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007020#endif
Willy Tarreaud1c57502016-12-22 22:46:15 +01007021#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
7022 hap_register_post_check(tlskeys_finalize_config);
7023#endif
Willy Tarreau80713382018-11-26 10:19:54 +01007024
7025 global.ssl_session_max_cost = SSL_SESSION_MAX_COST;
7026 global.ssl_handshake_max_cost = SSL_HANDSHAKE_MAX_COST;
7027
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01007028 hap_register_post_deinit(ssl_free_global_issuers);
7029
Willy Tarreau80713382018-11-26 10:19:54 +01007030#ifndef OPENSSL_NO_DH
7031 ssl_dh_ptr_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
7032 hap_register_post_deinit(ssl_free_dh);
7033#endif
7034#ifndef OPENSSL_NO_ENGINE
7035 hap_register_post_deinit(ssl_free_engines);
7036#endif
7037 /* Load SSL string for the verbose & debug mode. */
7038 ERR_load_SSL_strings();
Olivier Houcharda8955d52019-04-07 22:00:38 +02007039 ha_meth = BIO_meth_new(0x666, "ha methods");
7040 BIO_meth_set_write(ha_meth, ha_ssl_write);
7041 BIO_meth_set_read(ha_meth, ha_ssl_read);
7042 BIO_meth_set_ctrl(ha_meth, ha_ssl_ctrl);
7043 BIO_meth_set_create(ha_meth, ha_ssl_new);
7044 BIO_meth_set_destroy(ha_meth, ha_ssl_free);
7045 BIO_meth_set_puts(ha_meth, ha_ssl_puts);
7046 BIO_meth_set_gets(ha_meth, ha_ssl_gets);
William Lallemand150bfa82019-09-19 17:12:49 +02007047
7048 HA_SPIN_INIT(&ckch_lock);
Dragan Dosen1e7ed042020-05-08 18:30:00 +02007049
Dragan Dosen9ac98092020-05-11 15:51:45 +02007050 /* Try to register dedicated SSL/TLS protocol message callbacks for
7051 * heartbleed attack (CVE-2014-0160) and clienthello.
7052 */
7053 hap_register_post_check(ssl_sock_register_msg_callbacks);
7054
Dragan Dosen1e7ed042020-05-08 18:30:00 +02007055 /* Try to free all callbacks that were registered by using
7056 * ssl_sock_register_msg_callback().
7057 */
7058 hap_register_post_deinit(ssl_sock_unregister_msg_callbacks);
Willy Tarreau80713382018-11-26 10:19:54 +01007059}
Willy Tarreaud92aa5c2015-01-15 21:34:39 +01007060
Willy Tarreau80713382018-11-26 10:19:54 +01007061/* Compute and register the version string */
7062static void ssl_register_build_options()
7063{
7064 char *ptr = NULL;
7065 int i;
7066
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007067 memprintf(&ptr, "Built with OpenSSL version : "
7068#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01007069 "BoringSSL");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007070#else /* OPENSSL_IS_BORINGSSL */
7071 OPENSSL_VERSION_TEXT
7072 "\nRunning on OpenSSL version : %s%s",
Rosen Penev68185952018-12-14 08:47:02 -08007073 OpenSSL_version(OPENSSL_VERSION),
Willy Tarreau1d158ab2019-05-09 13:41:45 +02007074 ((OPENSSL_VERSION_NUMBER ^ OpenSSL_version_num()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007075#endif
7076 memprintf(&ptr, "%s\nOpenSSL library supports TLS extensions : "
Willy Tarreau9a1ab082019-05-09 13:26:41 +02007077#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007078 "no (library version too old)"
7079#elif defined(OPENSSL_NO_TLSEXT)
7080 "no (disabled via OPENSSL_NO_TLSEXT)"
7081#else
7082 "yes"
7083#endif
7084 "", ptr);
7085
7086 memprintf(&ptr, "%s\nOpenSSL library supports SNI : "
7087#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
7088 "yes"
7089#else
7090#ifdef OPENSSL_NO_TLSEXT
7091 "no (because of OPENSSL_NO_TLSEXT)"
7092#else
7093 "no (version might be too old, 0.9.8f min needed)"
7094#endif
7095#endif
7096 "", ptr);
7097
Emmanuel Hocdetf80bc242017-07-12 14:25:38 +02007098 memprintf(&ptr, "%s\nOpenSSL library supports :", ptr);
7099 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
7100 if (methodVersions[i].option)
7101 memprintf(&ptr, "%s %s", ptr, methodVersions[i].name);
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01007102
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007103 hap_register_build_opts(ptr, 1);
Willy Tarreau80713382018-11-26 10:19:54 +01007104}
Willy Tarreauc2c0b612016-12-21 19:23:20 +01007105
Willy Tarreau80713382018-11-26 10:19:54 +01007106INITCALL0(STG_REGISTER, ssl_register_build_options);
Remi Gacogne4f902b82015-05-28 16:23:00 +02007107
Emeric Brun46591952012-05-18 15:47:34 +02007108
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007109#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00007110void ssl_free_engines(void) {
7111 struct ssl_engine_list *wl, *wlb;
7112 /* free up engine list */
7113 list_for_each_entry_safe(wl, wlb, &openssl_engines, list) {
7114 ENGINE_finish(wl->e);
7115 ENGINE_free(wl->e);
7116 LIST_DEL(&wl->list);
7117 free(wl);
7118 }
7119}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02007120#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +02007121
Remi Gacogned3a23c32015-05-28 16:39:47 +02007122#ifndef OPENSSL_NO_DH
Grant Zhang872f9c22017-01-21 01:10:18 +00007123void ssl_free_dh(void) {
7124 if (local_dh_1024) {
7125 DH_free(local_dh_1024);
7126 local_dh_1024 = NULL;
7127 }
7128 if (local_dh_2048) {
7129 DH_free(local_dh_2048);
7130 local_dh_2048 = NULL;
7131 }
7132 if (local_dh_4096) {
7133 DH_free(local_dh_4096);
7134 local_dh_4096 = NULL;
7135 }
Remi Gacogne47783ef2015-05-29 15:53:22 +02007136 if (global_dh) {
7137 DH_free(global_dh);
7138 global_dh = NULL;
7139 }
Grant Zhang872f9c22017-01-21 01:10:18 +00007140}
7141#endif
7142
7143__attribute__((destructor))
7144static void __ssl_sock_deinit(void)
7145{
7146#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02007147 if (ssl_ctx_lru_tree) {
7148 lru64_destroy(ssl_ctx_lru_tree);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01007149 HA_RWLOCK_DESTROY(&ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +02007150 }
Remi Gacogned3a23c32015-05-28 16:39:47 +02007151#endif
7152
Willy Tarreau5db847a2019-05-09 14:13:35 +02007153#if (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02007154 ERR_remove_state(0);
7155 ERR_free_strings();
7156
7157 EVP_cleanup();
Rosen Penev68185952018-12-14 08:47:02 -08007158#endif
Remi Gacogned3a23c32015-05-28 16:39:47 +02007159
Willy Tarreau5db847a2019-05-09 14:13:35 +02007160#if (HA_OPENSSL_VERSION_NUMBER >= 0x00907000L) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02007161 CRYPTO_cleanup_all_ex_data();
7162#endif
Olivier Houcharda8955d52019-04-07 22:00:38 +02007163 BIO_meth_free(ha_meth);
Remi Gacogned3a23c32015-05-28 16:39:47 +02007164}
7165
William Dauchyf6370442020-11-14 19:25:33 +01007166/* Activate ssl on server <s>.
7167 * do nothing if there is no change to apply
7168 *
7169 * Must be called with the server lock held.
7170 */
7171void ssl_sock_set_srv(struct server *s, signed char use_ssl)
7172{
7173 if (s->use_ssl == use_ssl)
7174 return;
7175
7176 s->use_ssl = use_ssl;
7177 if (s->use_ssl == 1)
7178 s->xprt = &ssl_sock;
7179 else
7180 s->xprt = s->check.xprt = s->agent.xprt = xprt_get(XPRT_RAW);
7181}
7182
Emeric Brun46591952012-05-18 15:47:34 +02007183/*
7184 * Local variables:
7185 * c-indent-level: 8
7186 * c-basic-offset: 8
7187 * End:
7188 */