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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>
Emeric Brun46591952012-05-18 15:47:34 +020081
Emeric Brun46591952012-05-18 15:47:34 +020082
Willy Tarreau9356dac2019-05-10 09:22:53 +020083/* ***** READ THIS before adding code here! *****
84 *
85 * Due to API incompatibilities between multiple OpenSSL versions and their
86 * derivatives, it's often tempting to add macros to (re-)define certain
87 * symbols. Please do not do this here, and do it in common/openssl-compat.h
88 * exclusively so that the whole code consistently uses the same macros.
89 *
90 * Whenever possible if a macro is missing in certain versions, it's better
91 * to conditionally define it in openssl-compat.h than using lots of ifdefs.
92 */
93
Willy Tarreau71b734c2014-01-28 15:19:44 +010094int sslconns = 0;
95int totalsslconns = 0;
Emeric Brunece0c332017-12-06 13:51:49 +010096int nb_engines = 0;
Emeric Brune1f38db2012-09-03 20:36:47 +020097
William Lallemande0f3fd52020-02-25 14:53:06 +010098static struct eb_root cert_issuer_tree = EB_ROOT; /* issuers tree from "issuers-chain-path" */
99
William Lallemand7fd8b452020-05-07 15:20:43 +0200100struct global_ssl global_ssl = {
Willy Tarreauef934602016-12-22 23:12:01 +0100101#ifdef LISTEN_DEFAULT_CIPHERS
102 .listen_default_ciphers = LISTEN_DEFAULT_CIPHERS,
103#endif
104#ifdef CONNECT_DEFAULT_CIPHERS
105 .connect_default_ciphers = CONNECT_DEFAULT_CIPHERS,
106#endif
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +0500107#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +0200108 .listen_default_ciphersuites = LISTEN_DEFAULT_CIPHERSUITES,
Dirkjan Bussink415150f2018-09-14 11:14:21 +0200109 .connect_default_ciphersuites = CONNECT_DEFAULT_CIPHERSUITES,
110#endif
Willy Tarreauef934602016-12-22 23:12:01 +0100111 .listen_default_ssloptions = BC_SSL_O_NONE,
112 .connect_default_ssloptions = SRV_SSL_O_NONE,
113
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +0200114 .listen_default_sslmethods.flags = MC_SSL_O_ALL,
115 .listen_default_sslmethods.min = CONF_TLSV_NONE,
116 .listen_default_sslmethods.max = CONF_TLSV_NONE,
117 .connect_default_sslmethods.flags = MC_SSL_O_ALL,
118 .connect_default_sslmethods.min = CONF_TLSV_NONE,
119 .connect_default_sslmethods.max = CONF_TLSV_NONE,
120
Willy Tarreauef934602016-12-22 23:12:01 +0100121#ifdef DEFAULT_SSL_MAX_RECORD
122 .max_record = DEFAULT_SSL_MAX_RECORD,
123#endif
124 .default_dh_param = SSL_DEFAULT_DH_PARAM,
125 .ctx_cache = DEFAULT_SSL_CTX_CACHE,
Thierry FOURNIER5bf77322017-02-25 12:45:22 +0100126 .capture_cipherlist = 0,
William Lallemand3af48e72020-02-03 17:15:52 +0100127 .extra_files = SSL_GF_ALL,
William Lallemand8e8581e2020-10-20 17:36:46 +0200128 .extra_files_noext = 0,
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500129#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200130 .keylog = 0
131#endif
Willy Tarreauef934602016-12-22 23:12:01 +0100132};
133
Olivier Houcharda8955d52019-04-07 22:00:38 +0200134static BIO_METHOD *ha_meth;
135
Olivier Houchard66ab4982019-02-26 18:37:15 +0100136DECLARE_STATIC_POOL(ssl_sock_ctx_pool, "ssl_sock_ctx_pool", sizeof(struct ssl_sock_ctx));
137
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100138/* ssl stats module */
139enum {
Amaury Denoyelled0447a72020-11-03 17:10:02 +0100140 SSL_ST_SESS,
141 SSL_ST_REUSED_SESS,
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100142 SSL_ST_FAILED_HANDSHAKE,
Amaury Denoyellefbc33772020-11-03 17:10:01 +0100143
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100144 SSL_ST_STATS_COUNT /* must be the last member of the enum */
145};
146
147static struct name_desc ssl_stats[] = {
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100148 [SSL_ST_SESS] = { .name = "ssl_sess",
149 .desc = "Total number of ssl sessions established" },
150 [SSL_ST_REUSED_SESS] = { .name = "ssl_reused_sess",
151 .desc = "Total number of ssl sessions reused" },
152 [SSL_ST_FAILED_HANDSHAKE] = { .name = "ssl_failed_handshake",
153 .desc = "Total number of failed handshake" },
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100154};
155
156static struct ssl_counters {
Amaury Denoyelled0447a72020-11-03 17:10:02 +0100157 long long sess;
158 long long reused_sess;
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100159 long long failed_handshake;
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100160} ssl_counters;
161
162static void ssl_fill_stats(void *data, struct field *stats)
163{
Amaury Denoyellefbc33772020-11-03 17:10:01 +0100164 struct ssl_counters *counters = data;
165
Amaury Denoyelle034c1622020-11-13 16:05:00 +0100166 stats[SSL_ST_SESS] = mkf_u64(FN_COUNTER, counters->sess);
167 stats[SSL_ST_REUSED_SESS] = mkf_u64(FN_COUNTER, counters->reused_sess);
168 stats[SSL_ST_FAILED_HANDSHAKE] = mkf_u64(FN_COUNTER, counters->failed_handshake);
Amaury Denoyelle9963fa72020-11-03 17:10:00 +0100169}
170
171static struct stats_module ssl_stats_module = {
172 .name = "ssl",
173 .fill_stats = ssl_fill_stats,
174 .stats = ssl_stats,
175 .stats_count = SSL_ST_STATS_COUNT,
176 .counters = &ssl_counters,
177 .counters_size = sizeof(ssl_counters),
178 .domain_flags = MK_STATS_PROXY_DOMAIN(STATS_PX_CAP_FE|STATS_PX_CAP_LI|STATS_PX_CAP_BE|STATS_PX_CAP_SRV),
179 .clearable = 1,
180};
181
182INITCALL1(STG_REGISTER, stats_register_module, &ssl_stats_module);
183
Olivier Houchardea8dd942019-05-20 14:02:16 +0200184static struct task *ssl_sock_io_cb(struct task *, void *, unsigned short);
Olivier Houchard000694c2019-05-23 14:45:12 +0200185static int ssl_sock_handshake(struct connection *conn, unsigned int flag);
Olivier Houchardea8dd942019-05-20 14:02:16 +0200186
Olivier Houcharda8955d52019-04-07 22:00:38 +0200187/* Methods to implement OpenSSL BIO */
188static int ha_ssl_write(BIO *h, const char *buf, int num)
189{
190 struct buffer tmpbuf;
191 struct ssl_sock_ctx *ctx;
192 int ret;
193
194 ctx = BIO_get_data(h);
195 tmpbuf.size = num;
196 tmpbuf.area = (void *)(uintptr_t)buf;
197 tmpbuf.data = num;
198 tmpbuf.head = 0;
199 ret = ctx->xprt->snd_buf(ctx->conn, ctx->xprt_ctx, &tmpbuf, num, 0);
Olivier Houchardb51937e2019-05-01 17:24:36 +0200200 if (ret == 0 && !(ctx->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houcharda8955d52019-04-07 22:00:38 +0200201 BIO_set_retry_write(h);
Olivier Houcharda28454e2019-04-24 12:04:36 +0200202 ret = -1;
Olivier Houchardb51937e2019-05-01 17:24:36 +0200203 } else if (ret == 0)
204 BIO_clear_retry_flags(h);
Olivier Houcharda8955d52019-04-07 22:00:38 +0200205 return ret;
206}
207
208static int ha_ssl_gets(BIO *h, char *buf, int size)
209{
210
211 return 0;
212}
213
214static int ha_ssl_puts(BIO *h, const char *str)
215{
216
217 return ha_ssl_write(h, str, strlen(str));
218}
219
220static int ha_ssl_read(BIO *h, char *buf, int size)
221{
222 struct buffer tmpbuf;
223 struct ssl_sock_ctx *ctx;
224 int ret;
225
226 ctx = BIO_get_data(h);
227 tmpbuf.size = size;
228 tmpbuf.area = buf;
229 tmpbuf.data = 0;
230 tmpbuf.head = 0;
231 ret = ctx->xprt->rcv_buf(ctx->conn, ctx->xprt_ctx, &tmpbuf, size, 0);
Olivier Houchardb51937e2019-05-01 17:24:36 +0200232 if (ret == 0 && !(ctx->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH))) {
Olivier Houcharda8955d52019-04-07 22:00:38 +0200233 BIO_set_retry_read(h);
Olivier Houcharda28454e2019-04-24 12:04:36 +0200234 ret = -1;
Olivier Houchardb51937e2019-05-01 17:24:36 +0200235 } else if (ret == 0)
236 BIO_clear_retry_flags(h);
Olivier Houcharda8955d52019-04-07 22:00:38 +0200237
238 return ret;
239}
240
241static long ha_ssl_ctrl(BIO *h, int cmd, long arg1, void *arg2)
242{
243 int ret = 0;
244 switch (cmd) {
245 case BIO_CTRL_DUP:
246 case BIO_CTRL_FLUSH:
247 ret = 1;
248 break;
249 }
250 return ret;
251}
252
253static int ha_ssl_new(BIO *h)
254{
255 BIO_set_init(h, 1);
256 BIO_set_data(h, NULL);
257 BIO_clear_flags(h, ~0);
258 return 1;
259}
260
261static int ha_ssl_free(BIO *data)
262{
263
264 return 1;
265}
266
267
Willy Tarreau5db847a2019-05-09 14:13:35 +0200268#if defined(USE_THREAD) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Christopher Faulet9dcf9b62017-11-13 10:34:01 +0100269
Emeric Brun821bb9b2017-06-15 16:37:39 +0200270static HA_RWLOCK_T *ssl_rwlocks;
271
272
273unsigned long ssl_id_function(void)
274{
275 return (unsigned long)tid;
276}
277
278void ssl_locking_function(int mode, int n, const char * file, int line)
279{
280 if (mode & CRYPTO_LOCK) {
281 if (mode & CRYPTO_READ)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100282 HA_RWLOCK_RDLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200283 else
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100284 HA_RWLOCK_WRLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200285 }
286 else {
287 if (mode & CRYPTO_READ)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100288 HA_RWLOCK_RDUNLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200289 else
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100290 HA_RWLOCK_WRUNLOCK(SSL_LOCK, &ssl_rwlocks[n]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200291 }
292}
293
294static int ssl_locking_init(void)
295{
296 int i;
297
298 ssl_rwlocks = malloc(sizeof(HA_RWLOCK_T)*CRYPTO_num_locks());
299 if (!ssl_rwlocks)
300 return -1;
301
302 for (i = 0 ; i < CRYPTO_num_locks() ; i++)
Christopher Faulet2a944ee2017-11-07 10:42:54 +0100303 HA_RWLOCK_INIT(&ssl_rwlocks[i]);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200304
305 CRYPTO_set_id_callback(ssl_id_function);
306 CRYPTO_set_locking_callback(ssl_locking_function);
307
308 return 0;
309}
Christopher Faulet9dcf9b62017-11-13 10:34:01 +0100310
Emeric Brun821bb9b2017-06-15 16:37:39 +0200311#endif
312
Willy Tarreauaf613e82020-06-05 08:40:51 +0200313__decl_thread(HA_SPINLOCK_T ckch_lock);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200314
William Lallemandbc6ca7c2019-10-29 23:48:19 +0100315
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200316/*
Emmanuel Hocdetb270e812019-11-21 19:09:31 +0100317 * deduplicate cafile (and crlfile)
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200318 */
319struct cafile_entry {
320 X509_STORE *ca_store;
Emmanuel Hocdet129d3282019-10-24 18:08:51 +0200321 STACK_OF(X509_NAME) *ca_list;
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200322 struct ebmb_node node;
323 char path[0];
324};
325
326static struct eb_root cafile_tree = EB_ROOT_UNIQUE;
327
328static X509_STORE* ssl_store_get0_locations_file(char *path)
329{
330 struct ebmb_node *eb;
331
332 eb = ebst_lookup(&cafile_tree, path);
333 if (eb) {
334 struct cafile_entry *ca_e;
335 ca_e = ebmb_entry(eb, struct cafile_entry, node);
336 return ca_e->ca_store;
337 }
338 return NULL;
339}
340
William Lallemanddad31052020-05-14 17:47:32 +0200341int ssl_store_load_locations_file(char *path)
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200342{
343 if (ssl_store_get0_locations_file(path) == NULL) {
344 struct cafile_entry *ca_e;
345 X509_STORE *store = X509_STORE_new();
346 if (X509_STORE_load_locations(store, path, NULL)) {
347 int pathlen;
348 pathlen = strlen(path);
349 ca_e = calloc(1, sizeof(*ca_e) + pathlen + 1);
350 if (ca_e) {
351 memcpy(ca_e->path, path, pathlen + 1);
352 ca_e->ca_store = store;
353 ebst_insert(&cafile_tree, &ca_e->node);
354 return 1;
355 }
356 }
357 X509_STORE_free(store);
358 return 0;
359 }
360 return 1;
361}
362
363/* mimic what X509_STORE_load_locations do with store_ctx */
364static int ssl_set_cert_crl_file(X509_STORE *store_ctx, char *path)
365{
366 X509_STORE *store;
367 store = ssl_store_get0_locations_file(path);
368 if (store_ctx && store) {
369 int i;
370 X509_OBJECT *obj;
371 STACK_OF(X509_OBJECT) *objs = X509_STORE_get0_objects(store);
372 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
373 obj = sk_X509_OBJECT_value(objs, i);
374 switch (X509_OBJECT_get_type(obj)) {
375 case X509_LU_X509:
376 X509_STORE_add_cert(store_ctx, X509_OBJECT_get0_X509(obj));
377 break;
378 case X509_LU_CRL:
379 X509_STORE_add_crl(store_ctx, X509_OBJECT_get0_X509_CRL(obj));
380 break;
381 default:
382 break;
383 }
384 }
385 return 1;
386 }
387 return 0;
388}
389
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +0500390/* SSL_CTX_load_verify_locations substitute, internally call X509_STORE_load_locations */
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +0200391static int ssl_set_verify_locations_file(SSL_CTX *ctx, char *path)
392{
393 X509_STORE *store_ctx = SSL_CTX_get_cert_store(ctx);
394 return ssl_set_cert_crl_file(store_ctx, path);
395}
396
Emmanuel Hocdet129d3282019-10-24 18:08:51 +0200397/*
398 Extract CA_list from CA_file already in tree.
399 Duplicate ca_name is tracking with ebtree. It's simplify openssl compatibility.
400 Return a shared ca_list: SSL_dup_CA_list must be used before set it on SSL_CTX.
401*/
402static STACK_OF(X509_NAME)* ssl_get_client_ca_file(char *path)
403{
404 struct ebmb_node *eb;
405 struct cafile_entry *ca_e;
406
407 eb = ebst_lookup(&cafile_tree, path);
408 if (!eb)
409 return NULL;
410 ca_e = ebmb_entry(eb, struct cafile_entry, node);
411
412 if (ca_e->ca_list == NULL) {
413 int i;
414 unsigned long key;
415 struct eb_root ca_name_tree = EB_ROOT;
416 struct eb64_node *node, *back;
417 struct {
418 struct eb64_node node;
419 X509_NAME *xname;
420 } *ca_name;
421 STACK_OF(X509_OBJECT) *objs;
422 STACK_OF(X509_NAME) *skn;
423 X509 *x;
424 X509_NAME *xn;
425
426 skn = sk_X509_NAME_new_null();
427 /* take x509 from cafile_tree */
428 objs = X509_STORE_get0_objects(ca_e->ca_store);
429 for (i = 0; i < sk_X509_OBJECT_num(objs); i++) {
430 x = X509_OBJECT_get0_X509(sk_X509_OBJECT_value(objs, i));
431 if (!x)
432 continue;
433 xn = X509_get_subject_name(x);
434 if (!xn)
435 continue;
436 /* Check for duplicates. */
437 key = X509_NAME_hash(xn);
438 for (node = eb64_lookup(&ca_name_tree, key), ca_name = NULL;
439 node && ca_name == NULL;
440 node = eb64_next(node)) {
441 ca_name = container_of(node, typeof(*ca_name), node);
442 if (X509_NAME_cmp(xn, ca_name->xname) != 0)
443 ca_name = NULL;
444 }
445 /* find a duplicate */
446 if (ca_name)
447 continue;
448 ca_name = calloc(1, sizeof *ca_name);
449 xn = X509_NAME_dup(xn);
450 if (!ca_name ||
451 !xn ||
452 !sk_X509_NAME_push(skn, xn)) {
453 free(ca_name);
454 X509_NAME_free(xn);
455 sk_X509_NAME_pop_free(skn, X509_NAME_free);
456 sk_X509_NAME_free(skn);
457 skn = NULL;
458 break;
459 }
460 ca_name->node.key = key;
461 ca_name->xname = xn;
462 eb64_insert(&ca_name_tree, &ca_name->node);
463 }
464 ca_e->ca_list = skn;
465 /* remove temporary ca_name tree */
466 node = eb64_first(&ca_name_tree);
467 while (node) {
468 ca_name = container_of(node, typeof(*ca_name), node);
469 back = eb64_next(node);
470 eb64_delete(node);
471 free(ca_name);
472 node = back;
473 }
474 }
475 return ca_e->ca_list;
476}
477
Willy Tarreaubafbe012017-11-24 17:34:44 +0100478struct pool_head *pool_head_ssl_capture = NULL;
William Lallemand15e16942020-05-15 00:25:08 +0200479int ssl_capture_ptr_index = -1;
Thierry FOURNIER28962c92018-06-17 21:37:05 +0200480static int ssl_app_data_index = -1;
Willy Tarreauef934602016-12-22 23:12:01 +0100481
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500482#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200483int ssl_keylog_index = -1;
484struct pool_head *pool_head_ssl_keylog = NULL;
485struct pool_head *pool_head_ssl_keylog_str = NULL;
486#endif
487
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200488#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
489struct list tlskeys_reference = LIST_HEAD_INIT(tlskeys_reference);
490#endif
491
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200492#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200493unsigned int openssl_engines_initialized;
Grant Zhang872f9c22017-01-21 01:10:18 +0000494struct list openssl_engines = LIST_HEAD_INIT(openssl_engines);
495struct ssl_engine_list {
496 struct list list;
497 ENGINE *e;
498};
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200499#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000500
Remi Gacogne8de54152014-07-15 11:36:40 +0200501#ifndef OPENSSL_NO_DH
Remi Gacogne4f902b82015-05-28 16:23:00 +0200502static int ssl_dh_ptr_index = -1;
Remi Gacogne47783ef2015-05-29 15:53:22 +0200503static DH *global_dh = NULL;
Remi Gacogne8de54152014-07-15 11:36:40 +0200504static DH *local_dh_1024 = NULL;
505static DH *local_dh_2048 = NULL;
506static DH *local_dh_4096 = NULL;
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +0100507static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen);
Remi Gacogne8de54152014-07-15 11:36:40 +0200508#endif /* OPENSSL_NO_DH */
509
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100510#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Christopher Faulet31af49d2015-06-09 17:29:50 +0200511/* X509V3 Extensions that will be added on generated certificates */
512#define X509V3_EXT_SIZE 5
513static char *x509v3_ext_names[X509V3_EXT_SIZE] = {
514 "basicConstraints",
515 "nsComment",
516 "subjectKeyIdentifier",
517 "authorityKeyIdentifier",
518 "keyUsage",
519};
520static char *x509v3_ext_values[X509V3_EXT_SIZE] = {
521 "CA:FALSE",
522 "\"OpenSSL Generated Certificate\"",
523 "hash",
524 "keyid,issuer:always",
525 "nonRepudiation,digitalSignature,keyEncipherment"
526};
Christopher Faulet31af49d2015-06-09 17:29:50 +0200527/* LRU cache to store generated certificate */
528static struct lru64_head *ssl_ctx_lru_tree = NULL;
529static unsigned int ssl_ctx_lru_seed = 0;
Emeric Brun821bb9b2017-06-15 16:37:39 +0200530static unsigned int ssl_ctx_serial;
Willy Tarreau86abe442018-11-25 20:12:18 +0100531__decl_rwlock(ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +0200532
Willy Tarreauc8ad3be2015-06-17 15:48:26 +0200533#endif // SSL_CTRL_SET_TLSEXT_HOSTNAME
534
yanbzhube2774d2015-12-10 15:07:30 -0500535/* The order here matters for picking a default context,
536 * keep the most common keytype at the bottom of the list
537 */
538const char *SSL_SOCK_KEYTYPE_NAMES[] = {
539 "dsa",
540 "ecdsa",
541 "rsa"
542};
yanbzhube2774d2015-12-10 15:07:30 -0500543
William Lallemandc3cd35f2017-11-28 11:04:43 +0100544static struct shared_context *ssl_shctx = NULL; /* ssl shared session cache */
William Lallemand4f45bb92017-10-30 20:08:51 +0100545static struct eb_root *sh_ssl_sess_tree; /* ssl shared session tree */
546
Dragan Dosen9ac98092020-05-11 15:51:45 +0200547/* Dedicated callback functions for heartbeat and clienthello.
548 */
549#ifdef TLS1_RT_HEARTBEAT
550static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
551 int content_type, const void *buf, size_t len,
552 SSL *ssl);
553#endif
554static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
555 int content_type, const void *buf, size_t len,
556 SSL *ssl);
557
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500558#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200559static void ssl_init_keylog(struct connection *conn, int write_p, int version,
560 int content_type, const void *buf, size_t len,
561 SSL *ssl);
562#endif
563
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200564/* List head of all registered SSL/TLS protocol message callbacks. */
565struct list ssl_sock_msg_callbacks = LIST_HEAD_INIT(ssl_sock_msg_callbacks);
566
567/* Registers the function <func> in order to be called on SSL/TLS protocol
568 * message processing. It will return 0 if the function <func> is not set
569 * or if it fails to allocate memory.
570 */
571int ssl_sock_register_msg_callback(ssl_sock_msg_callback_func func)
572{
573 struct ssl_sock_msg_callback *cbk;
574
575 if (!func)
576 return 0;
577
578 cbk = calloc(1, sizeof(*cbk));
579 if (!cbk) {
580 ha_alert("out of memory in ssl_sock_register_msg_callback().\n");
581 return 0;
582 }
583
584 cbk->func = func;
585
586 LIST_ADDQ(&ssl_sock_msg_callbacks, &cbk->list);
587
588 return 1;
589}
590
Dragan Dosen9ac98092020-05-11 15:51:45 +0200591/* Used to register dedicated SSL/TLS protocol message callbacks.
592 */
593static int ssl_sock_register_msg_callbacks(void)
594{
595#ifdef TLS1_RT_HEARTBEAT
596 if (!ssl_sock_register_msg_callback(ssl_sock_parse_heartbeat))
597 return ERR_ABORT;
598#endif
599 if (global_ssl.capture_cipherlist > 0) {
600 if (!ssl_sock_register_msg_callback(ssl_sock_parse_clienthello))
601 return ERR_ABORT;
602 }
Ilya Shipitsin04a5a442020-11-03 14:15:38 +0500603#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +0200604 if (global_ssl.keylog > 0) {
605 if (!ssl_sock_register_msg_callback(ssl_init_keylog))
606 return ERR_ABORT;
607 }
608#endif
609
Christopher Fauletfc633b62020-11-06 15:24:23 +0100610 return ERR_NONE;
Dragan Dosen9ac98092020-05-11 15:51:45 +0200611}
612
Dragan Dosen1e7ed042020-05-08 18:30:00 +0200613/* Used to free all SSL/TLS protocol message callbacks that were
614 * registered by using ssl_sock_register_msg_callback().
615 */
616static void ssl_sock_unregister_msg_callbacks(void)
617{
618 struct ssl_sock_msg_callback *cbk, *cbkback;
619
620 list_for_each_entry_safe(cbk, cbkback, &ssl_sock_msg_callbacks, list) {
621 LIST_DEL(&cbk->list);
622 free(cbk);
623 }
624}
625
Dragan Doseneb607fe2020-05-11 17:17:06 +0200626SSL *ssl_sock_get_ssl_object(struct connection *conn)
627{
628 if (!ssl_sock_is_ssl(conn))
629 return NULL;
630
631 return ((struct ssl_sock_ctx *)(conn->xprt_ctx))->ssl;
632}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100633/*
634 * This function gives the detail of the SSL error. It is used only
635 * if the debug mode and the verbose mode are activated. It dump all
636 * the SSL error until the stack was empty.
637 */
638static forceinline void ssl_sock_dump_errors(struct connection *conn)
639{
640 unsigned long ret;
641
642 if (unlikely(global.mode & MODE_DEBUG)) {
643 while(1) {
644 ret = ERR_get_error();
645 if (ret == 0)
646 return;
647 fprintf(stderr, "fd[%04x] OpenSSL error[0x%lx] %s: %s\n",
Willy Tarreau585744b2017-08-24 14:31:19 +0200648 (unsigned short)conn->handle.fd, ret,
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +0100649 ERR_func_error_string(ret), ERR_reason_error_string(ret));
650 }
651 }
652}
653
yanbzhube2774d2015-12-10 15:07:30 -0500654
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200655#ifndef OPENSSL_NO_ENGINE
William Lallemanddad31052020-05-14 17:47:32 +0200656int ssl_init_single_engine(const char *engine_id, const char *def_algorithms)
Grant Zhang872f9c22017-01-21 01:10:18 +0000657{
658 int err_code = ERR_ABORT;
659 ENGINE *engine;
660 struct ssl_engine_list *el;
661
662 /* grab the structural reference to the engine */
663 engine = ENGINE_by_id(engine_id);
664 if (engine == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100665 ha_alert("ssl-engine %s: failed to get structural reference\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000666 goto fail_get;
667 }
668
669 if (!ENGINE_init(engine)) {
670 /* the engine couldn't initialise, release it */
Christopher Faulet767a84b2017-11-24 16:50:31 +0100671 ha_alert("ssl-engine %s: failed to initialize\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000672 goto fail_init;
673 }
674
675 if (ENGINE_set_default_string(engine, def_algorithms) == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100676 ha_alert("ssl-engine %s: failed on ENGINE_set_default_string\n", engine_id);
Grant Zhang872f9c22017-01-21 01:10:18 +0000677 goto fail_set_method;
678 }
679
680 el = calloc(1, sizeof(*el));
681 el->e = engine;
682 LIST_ADD(&openssl_engines, &el->list);
Emeric Brunece0c332017-12-06 13:51:49 +0100683 nb_engines++;
684 if (global_ssl.async)
685 global.ssl_used_async_engines = nb_engines;
Grant Zhang872f9c22017-01-21 01:10:18 +0000686 return 0;
687
688fail_set_method:
689 /* release the functional reference from ENGINE_init() */
690 ENGINE_finish(engine);
691
692fail_init:
693 /* release the structural reference from ENGINE_by_id() */
694 ENGINE_free(engine);
695
696fail_get:
697 return err_code;
698}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +0200699#endif
Grant Zhang872f9c22017-01-21 01:10:18 +0000700
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +0500701#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +0200702/*
703 * openssl async fd handler
704 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200705void ssl_async_fd_handler(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000706{
Olivier Houchardea8dd942019-05-20 14:02:16 +0200707 struct ssl_sock_ctx *ctx = fdtab[fd].owner;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000708
Emeric Brun3854e012017-05-17 20:42:48 +0200709 /* fd is an async enfine fd, we must stop
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000710 * to poll this fd until it is requested
711 */
Emeric Brunbbc16542017-06-02 15:54:06 +0000712 fd_stop_recv(fd);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000713 fd_cant_recv(fd);
714
715 /* crypto engine is available, let's notify the associated
716 * connection that it can pursue its processing.
717 */
Olivier Houcharda4598262020-09-15 22:16:02 +0200718 tasklet_wakeup(ctx->wait_event.tasklet);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000719}
720
Emeric Brun3854e012017-05-17 20:42:48 +0200721/*
722 * openssl async delayed SSL_free handler
723 */
Emeric Brund0e095c2019-04-19 17:15:28 +0200724void ssl_async_fd_free(int fd)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000725{
726 SSL *ssl = fdtab[fd].owner;
Emeric Brun3854e012017-05-17 20:42:48 +0200727 OSSL_ASYNC_FD all_fd[32];
728 size_t num_all_fds = 0;
729 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000730
Emeric Brun3854e012017-05-17 20:42:48 +0200731 /* We suppose that the async job for a same SSL *
732 * are serialized. So if we are awake it is
733 * because the running job has just finished
734 * and we can remove all async fds safely
735 */
736 SSL_get_all_async_fds(ssl, NULL, &num_all_fds);
737 if (num_all_fds > 32) {
738 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
739 return;
740 }
741
742 SSL_get_all_async_fds(ssl, all_fd, &num_all_fds);
743 for (i=0 ; i < num_all_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +0200744 fd_stop_both(all_fd[i]);
Emeric Brun3854e012017-05-17 20:42:48 +0200745
746 /* Now we can safely call SSL_free, no more pending job in engines */
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000747 SSL_free(ssl);
Olivier Houchard2be5a4c2019-03-08 18:54:43 +0100748 _HA_ATOMIC_SUB(&sslconns, 1);
749 _HA_ATOMIC_SUB(&jobs, 1);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000750}
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000751/*
Emeric Brun3854e012017-05-17 20:42:48 +0200752 * function used to manage a returned SSL_ERROR_WANT_ASYNC
753 * and enable/disable polling for async fds
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000754 */
Olivier Houchardea8dd942019-05-20 14:02:16 +0200755static inline void ssl_async_process_fds(struct ssl_sock_ctx *ctx)
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000756{
Willy Tarreaua9786b62018-01-25 07:22:13 +0100757 OSSL_ASYNC_FD add_fd[32];
Emeric Brun3854e012017-05-17 20:42:48 +0200758 OSSL_ASYNC_FD del_fd[32];
Olivier Houchardea8dd942019-05-20 14:02:16 +0200759 SSL *ssl = ctx->ssl;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000760 size_t num_add_fds = 0;
761 size_t num_del_fds = 0;
Emeric Brun3854e012017-05-17 20:42:48 +0200762 int i;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000763
764 SSL_get_changed_async_fds(ssl, NULL, &num_add_fds, NULL,
765 &num_del_fds);
Emeric Brun3854e012017-05-17 20:42:48 +0200766 if (num_add_fds > 32 || num_del_fds > 32) {
767 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 +0000768 return;
769 }
770
Emeric Brun3854e012017-05-17 20:42:48 +0200771 SSL_get_changed_async_fds(ssl, add_fd, &num_add_fds, del_fd, &num_del_fds);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000772
Emeric Brun3854e012017-05-17 20:42:48 +0200773 /* We remove unused fds from the fdtab */
774 for (i=0 ; i < num_del_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +0200775 fd_stop_both(del_fd[i]);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000776
Emeric Brun3854e012017-05-17 20:42:48 +0200777 /* We add new fds to the fdtab */
778 for (i=0 ; i < num_add_fds ; i++) {
Olivier Houchardea8dd942019-05-20 14:02:16 +0200779 fd_insert(add_fd[i], ctx, ssl_async_fd_handler, tid_bit);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000780 }
781
Emeric Brun3854e012017-05-17 20:42:48 +0200782 num_add_fds = 0;
783 SSL_get_all_async_fds(ssl, NULL, &num_add_fds);
784 if (num_add_fds > 32) {
785 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
786 return;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000787 }
Emeric Brun3854e012017-05-17 20:42:48 +0200788
789 /* We activate the polling for all known async fds */
790 SSL_get_all_async_fds(ssl, add_fd, &num_add_fds);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000791 for (i=0 ; i < num_add_fds ; i++) {
Emeric Brun3854e012017-05-17 20:42:48 +0200792 fd_want_recv(add_fd[i]);
Emeric Brunce9e01c2017-05-31 10:02:53 +0000793 /* To ensure that the fd cache won't be used
794 * We'll prefer to catch a real RD event
795 * because handling an EAGAIN on this fd will
796 * result in a context switch and also
797 * some engines uses a fd in blocking mode.
798 */
799 fd_cant_recv(add_fd[i]);
800 }
Emeric Brun3854e012017-05-17 20:42:48 +0200801
Grant Zhangfa6c7ee2017-01-14 01:42:15 +0000802}
803#endif
804
William Lallemand104a7a62019-10-14 14:14:59 +0200805#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
Emeric Brun4f3c87a2014-06-20 15:46:13 +0200806/*
807 * This function returns the number of seconds elapsed
808 * since the Epoch, 1970-01-01 00:00:00 +0000 (UTC) and the
809 * date presented un ASN1_GENERALIZEDTIME.
810 *
811 * In parsing error case, it returns -1.
812 */
813static long asn1_generalizedtime_to_epoch(ASN1_GENERALIZEDTIME *d)
814{
815 long epoch;
816 char *p, *end;
817 const unsigned short month_offset[12] = {
818 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
819 };
820 int year, month;
821
822 if (!d || (d->type != V_ASN1_GENERALIZEDTIME)) return -1;
823
824 p = (char *)d->data;
825 end = p + d->length;
826
827 if (end - p < 4) return -1;
828 year = 1000 * (p[0] - '0') + 100 * (p[1] - '0') + 10 * (p[2] - '0') + p[3] - '0';
829 p += 4;
830 if (end - p < 2) return -1;
831 month = 10 * (p[0] - '0') + p[1] - '0';
832 if (month < 1 || month > 12) return -1;
833 /* Compute the number of seconds since 1 jan 1970 and the beginning of current month
834 We consider leap years and the current month (<marsh or not) */
835 epoch = ( ((year - 1970) * 365)
836 + ((year - (month < 3)) / 4 - (year - (month < 3)) / 100 + (year - (month < 3)) / 400)
837 - ((1970 - 1) / 4 - (1970 - 1) / 100 + (1970 - 1) / 400)
838 + month_offset[month-1]
839 ) * 24 * 60 * 60;
840 p += 2;
841 if (end - p < 2) return -1;
842 /* Add the number of seconds of completed days of current month */
843 epoch += (10 * (p[0] - '0') + p[1] - '0' - 1) * 24 * 60 * 60;
844 p += 2;
845 if (end - p < 2) return -1;
846 /* Add the completed hours of the current day */
847 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60 * 60;
848 p += 2;
849 if (end - p < 2) return -1;
850 /* Add the completed minutes of the current hour */
851 epoch += (10 * (p[0] - '0') + p[1] - '0') * 60;
852 p += 2;
853 if (p == end) return -1;
854 /* Test if there is available seconds */
855 if (p[0] < '0' || p[0] > '9')
856 goto nosec;
857 if (end - p < 2) return -1;
858 /* Add the seconds of the current minute */
859 epoch += 10 * (p[0] - '0') + p[1] - '0';
860 p += 2;
861 if (p == end) return -1;
862 /* Ignore seconds float part if present */
863 if (p[0] == '.') {
864 do {
865 if (++p == end) return -1;
866 } while (p[0] >= '0' && p[0] <= '9');
867 }
868
869nosec:
870 if (p[0] == 'Z') {
871 if (end - p != 1) return -1;
872 return epoch;
873 }
874 else if (p[0] == '+') {
875 if (end - p != 5) return -1;
876 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700877 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 +0200878 }
879 else if (p[0] == '-') {
880 if (end - p != 5) return -1;
881 /* Apply timezone offset */
Frederik Deweerdt953917a2017-10-16 07:37:31 -0700882 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 +0200883 }
884
885 return -1;
886}
887
William Lallemand104a7a62019-10-14 14:14:59 +0200888/*
889 * struct alignment works here such that the key.key is the same as key_data
890 * Do not change the placement of key_data
891 */
892struct certificate_ocsp {
893 struct ebmb_node key;
894 unsigned char key_data[OCSP_MAX_CERTID_ASN1_LENGTH];
895 struct buffer response;
William Lallemand76b4a122020-08-04 17:41:39 +0200896 int refcount;
William Lallemand104a7a62019-10-14 14:14:59 +0200897 long expire;
898};
899
900struct ocsp_cbk_arg {
901 int is_single;
902 int single_kt;
903 union {
904 struct certificate_ocsp *s_ocsp;
905 /*
906 * m_ocsp will have multiple entries dependent on key type
907 * Entry 0 - DSA
908 * Entry 1 - ECDSA
909 * Entry 2 - RSA
910 */
911 struct certificate_ocsp *m_ocsp[SSL_SOCK_NUM_KEYTYPES];
912 };
913};
914
Emeric Brun1d3865b2014-06-20 15:37:32 +0200915static struct eb_root cert_ocsp_tree = EB_ROOT_UNIQUE;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200916
917/* This function starts to check if the OCSP response (in DER format) contained
918 * in chunk 'ocsp_response' is valid (else exits on error).
919 * If 'cid' is not NULL, it will be compared to the OCSP certificate ID
920 * contained in the OCSP Response and exits on error if no match.
921 * If it's a valid OCSP Response:
922 * If 'ocsp' is not NULL, the chunk is copied in the OCSP response's container
923 * pointed by 'ocsp'.
924 * If 'ocsp' is NULL, the function looks up into the OCSP response's
925 * containers tree (using as index the ASN1 form of the OCSP Certificate ID extracted
926 * from the response) and exits on error if not found. Finally, If an OCSP response is
927 * already present in the container, it will be overwritten.
928 *
929 * Note: OCSP response containing more than one OCSP Single response is not
930 * considered valid.
931 *
932 * Returns 0 on success, 1 in error case.
933 */
Willy Tarreau83061a82018-07-13 11:56:34 +0200934static int ssl_sock_load_ocsp_response(struct buffer *ocsp_response,
935 struct certificate_ocsp *ocsp,
936 OCSP_CERTID *cid, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +0200937{
938 OCSP_RESPONSE *resp;
939 OCSP_BASICRESP *bs = NULL;
940 OCSP_SINGLERESP *sr;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200941 OCSP_CERTID *id;
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200942 unsigned char *p = (unsigned char *) ocsp_response->area;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200943 int rc , count_sr;
Emeric Brun13a6b482014-06-20 15:44:34 +0200944 ASN1_GENERALIZEDTIME *revtime, *thisupd, *nextupd = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +0200945 int reason;
946 int ret = 1;
947
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200948 resp = d2i_OCSP_RESPONSE(NULL, (const unsigned char **)&p,
949 ocsp_response->data);
Emeric Brun4147b2e2014-06-16 18:36:30 +0200950 if (!resp) {
951 memprintf(err, "Unable to parse OCSP response");
952 goto out;
953 }
954
955 rc = OCSP_response_status(resp);
956 if (rc != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
957 memprintf(err, "OCSP response status not successful");
958 goto out;
959 }
960
961 bs = OCSP_response_get1_basic(resp);
962 if (!bs) {
963 memprintf(err, "Failed to get basic response from OCSP Response");
964 goto out;
965 }
966
967 count_sr = OCSP_resp_count(bs);
968 if (count_sr > 1) {
969 memprintf(err, "OCSP response ignored because contains multiple single responses (%d)", count_sr);
970 goto out;
971 }
972
973 sr = OCSP_resp_get0(bs, 0);
974 if (!sr) {
975 memprintf(err, "Failed to get OCSP single response");
976 goto out;
977 }
978
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200979 id = (OCSP_CERTID*)OCSP_SINGLERESP_get0_id(sr);
980
Emeric Brun4147b2e2014-06-16 18:36:30 +0200981 rc = OCSP_single_get0_status(sr, &reason, &revtime, &thisupd, &nextupd);
Emmanuel Hocdetef607052017-10-24 14:57:16 +0200982 if (rc != V_OCSP_CERTSTATUS_GOOD && rc != V_OCSP_CERTSTATUS_REVOKED) {
Emmanuel Hocdet872085c2017-10-10 15:18:52 +0200983 memprintf(err, "OCSP single response: certificate status is unknown");
Emeric Brun4147b2e2014-06-16 18:36:30 +0200984 goto out;
985 }
986
Emeric Brun13a6b482014-06-20 15:44:34 +0200987 if (!nextupd) {
988 memprintf(err, "OCSP single response: missing nextupdate");
989 goto out;
990 }
991
Emeric Brunc8b27b62014-06-19 14:16:17 +0200992 rc = OCSP_check_validity(thisupd, nextupd, OCSP_MAX_RESPONSE_TIME_SKEW, -1);
Emeric Brun4147b2e2014-06-16 18:36:30 +0200993 if (!rc) {
994 memprintf(err, "OCSP single response: no longer valid.");
995 goto out;
996 }
997
998 if (cid) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +0200999 if (OCSP_id_cmp(id, cid)) {
Emeric Brun4147b2e2014-06-16 18:36:30 +02001000 memprintf(err, "OCSP single response: Certificate ID does not match certificate and issuer");
1001 goto out;
1002 }
1003 }
1004
1005 if (!ocsp) {
1006 unsigned char key[OCSP_MAX_CERTID_ASN1_LENGTH];
1007 unsigned char *p;
1008
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001009 rc = i2d_OCSP_CERTID(id, NULL);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001010 if (!rc) {
1011 memprintf(err, "OCSP single response: Unable to encode Certificate ID");
1012 goto out;
1013 }
1014
1015 if (rc > OCSP_MAX_CERTID_ASN1_LENGTH) {
1016 memprintf(err, "OCSP single response: Certificate ID too long");
1017 goto out;
1018 }
1019
1020 p = key;
1021 memset(key, 0, OCSP_MAX_CERTID_ASN1_LENGTH);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001022 i2d_OCSP_CERTID(id, &p);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001023 ocsp = (struct certificate_ocsp *)ebmb_lookup(&cert_ocsp_tree, key, OCSP_MAX_CERTID_ASN1_LENGTH);
1024 if (!ocsp) {
1025 memprintf(err, "OCSP single response: Certificate ID does not match any certificate or issuer");
1026 goto out;
1027 }
1028 }
1029
1030 /* According to comments on "chunk_dup", the
1031 previous chunk buffer will be freed */
1032 if (!chunk_dup(&ocsp->response, ocsp_response)) {
1033 memprintf(err, "OCSP response: Memory allocation error");
1034 goto out;
1035 }
1036
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001037 ocsp->expire = asn1_generalizedtime_to_epoch(nextupd) - OCSP_MAX_RESPONSE_TIME_SKEW;
1038
Emeric Brun4147b2e2014-06-16 18:36:30 +02001039 ret = 0;
1040out:
Janusz Dziemidowicz8d710492017-03-08 16:59:41 +01001041 ERR_clear_error();
1042
Emeric Brun4147b2e2014-06-16 18:36:30 +02001043 if (bs)
1044 OCSP_BASICRESP_free(bs);
1045
1046 if (resp)
1047 OCSP_RESPONSE_free(resp);
1048
1049 return ret;
1050}
1051/*
1052 * External function use to update the OCSP response in the OCSP response's
1053 * containers tree. The chunk 'ocsp_response' must contain the OCSP response
1054 * to update in DER format.
1055 *
1056 * Returns 0 on success, 1 in error case.
1057 */
Willy Tarreau83061a82018-07-13 11:56:34 +02001058int ssl_sock_update_ocsp_response(struct buffer *ocsp_response, char **err)
Emeric Brun4147b2e2014-06-16 18:36:30 +02001059{
1060 return ssl_sock_load_ocsp_response(ocsp_response, NULL, NULL, err);
1061}
1062
William Lallemand4a660132019-10-14 14:51:41 +02001063#endif
1064
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001065#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
1066static 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)
1067{
Christopher Faulet16f45c82018-02-16 11:23:49 +01001068 struct tls_keys_ref *ref;
Emeric Brun9e754772019-01-10 17:51:55 +01001069 union tls_sess_key *keys;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001070 struct connection *conn;
1071 int head;
1072 int i;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001073 int ret = -1; /* error by default */
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001074
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001075 conn = SSL_get_ex_data(s, ssl_app_data_index);
Willy Tarreau07d94e42018-09-20 10:57:52 +02001076 ref = __objt_listener(conn->target)->bind_conf->keys_ref;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001077 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1078
1079 keys = ref->tlskeys;
1080 head = ref->tls_ticket_enc_index;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001081
1082 if (enc) {
1083 memcpy(key_name, keys[head].name, 16);
1084
1085 if(!RAND_pseudo_bytes(iv, EVP_MAX_IV_LENGTH))
Christopher Faulet16f45c82018-02-16 11:23:49 +01001086 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001087
Emeric Brun9e754772019-01-10 17:51:55 +01001088 if (ref->key_size_bits == 128) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001089
Emeric Brun9e754772019-01-10 17:51:55 +01001090 if(!EVP_EncryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[head].key_128.aes_key, iv))
1091 goto end;
1092
Willy Tarreau9356dac2019-05-10 09:22:53 +02001093 HMAC_Init_ex(hctx, keys[head].key_128.hmac_key, 16, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001094 ret = 1;
1095 }
1096 else if (ref->key_size_bits == 256 ) {
1097
1098 if(!EVP_EncryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[head].key_256.aes_key, iv))
1099 goto end;
1100
Willy Tarreau9356dac2019-05-10 09:22:53 +02001101 HMAC_Init_ex(hctx, keys[head].key_256.hmac_key, 32, TLS_TICKET_HASH_FUNCT(), NULL);
Emeric Brun9e754772019-01-10 17:51:55 +01001102 ret = 1;
1103 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001104 } else {
1105 for (i = 0; i < TLS_TICKETS_NO; i++) {
1106 if (!memcmp(key_name, keys[(head + i) % TLS_TICKETS_NO].name, 16))
1107 goto found;
1108 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01001109 ret = 0;
1110 goto end;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001111
Christopher Faulet16f45c82018-02-16 11:23:49 +01001112 found:
Emeric Brun9e754772019-01-10 17:51:55 +01001113 if (ref->key_size_bits == 128) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001114 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 +01001115 if(!EVP_DecryptInit_ex(ectx, EVP_aes_128_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_128.aes_key, iv))
1116 goto end;
1117 /* 2 for key renewal, 1 if current key is still valid */
1118 ret = i ? 2 : 1;
1119 }
1120 else if (ref->key_size_bits == 256) {
Willy Tarreau9356dac2019-05-10 09:22:53 +02001121 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 +01001122 if(!EVP_DecryptInit_ex(ectx, EVP_aes_256_cbc(), NULL, keys[(head + i) % TLS_TICKETS_NO].key_256.aes_key, iv))
1123 goto end;
1124 /* 2 for key renewal, 1 if current key is still valid */
1125 ret = i ? 2 : 1;
1126 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001127 }
Emeric Brun9e754772019-01-10 17:51:55 +01001128
Christopher Faulet16f45c82018-02-16 11:23:49 +01001129 end:
1130 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
1131 return ret;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001132}
1133
1134struct tls_keys_ref *tlskeys_ref_lookup(const char *filename)
1135{
1136 struct tls_keys_ref *ref;
1137
1138 list_for_each_entry(ref, &tlskeys_reference, list)
1139 if (ref->filename && strcmp(filename, ref->filename) == 0)
1140 return ref;
1141 return NULL;
1142}
1143
1144struct tls_keys_ref *tlskeys_ref_lookupid(int unique_id)
1145{
1146 struct tls_keys_ref *ref;
1147
1148 list_for_each_entry(ref, &tlskeys_reference, list)
1149 if (ref->unique_id == unique_id)
1150 return ref;
1151 return NULL;
1152}
1153
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001154/* Update the key into ref: if keysize doesn't
Emeric Brun9e754772019-01-10 17:51:55 +01001155 * match existing ones, this function returns -1
1156 * else it returns 0 on success.
1157 */
1158int ssl_sock_update_tlskey_ref(struct tls_keys_ref *ref,
Willy Tarreau83061a82018-07-13 11:56:34 +02001159 struct buffer *tlskey)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001160{
Emeric Brun9e754772019-01-10 17:51:55 +01001161 if (ref->key_size_bits == 128) {
1162 if (tlskey->data != sizeof(struct tls_sess_key_128))
1163 return -1;
1164 }
1165 else if (ref->key_size_bits == 256) {
1166 if (tlskey->data != sizeof(struct tls_sess_key_256))
1167 return -1;
1168 }
1169 else
1170 return -1;
1171
Christopher Faulet16f45c82018-02-16 11:23:49 +01001172 HA_RWLOCK_WRLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001173 memcpy((char *) (ref->tlskeys + ((ref->tls_ticket_enc_index + 2) % TLS_TICKETS_NO)),
1174 tlskey->area, tlskey->data);
Christopher Faulet16f45c82018-02-16 11:23:49 +01001175 ref->tls_ticket_enc_index = (ref->tls_ticket_enc_index + 1) % TLS_TICKETS_NO;
1176 HA_RWLOCK_WRUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Emeric Brun9e754772019-01-10 17:51:55 +01001177
1178 return 0;
Christopher Faulet16f45c82018-02-16 11:23:49 +01001179}
1180
Willy Tarreau83061a82018-07-13 11:56:34 +02001181int ssl_sock_update_tlskey(char *filename, struct buffer *tlskey, char **err)
Christopher Faulet16f45c82018-02-16 11:23:49 +01001182{
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001183 struct tls_keys_ref *ref = tlskeys_ref_lookup(filename);
1184
1185 if(!ref) {
1186 memprintf(err, "Unable to locate the referenced filename: %s", filename);
1187 return 1;
1188 }
Emeric Brun9e754772019-01-10 17:51:55 +01001189 if (ssl_sock_update_tlskey_ref(ref, tlskey) < 0) {
1190 memprintf(err, "Invalid key size");
1191 return 1;
1192 }
1193
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001194 return 0;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001195}
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001196
1197/* This function finalize the configuration parsing. Its set all the
Willy Tarreaud1c57502016-12-22 22:46:15 +01001198 * automatic ids. It's called just after the basic checks. It returns
1199 * 0 on success otherwise ERR_*.
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001200 */
Willy Tarreaud1c57502016-12-22 22:46:15 +01001201static int tlskeys_finalize_config(void)
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001202{
1203 int i = 0;
1204 struct tls_keys_ref *ref, *ref2, *ref3;
1205 struct list tkr = LIST_HEAD_INIT(tkr);
1206
1207 list_for_each_entry(ref, &tlskeys_reference, list) {
1208 if (ref->unique_id == -1) {
1209 /* Look for the first free id. */
1210 while (1) {
1211 list_for_each_entry(ref2, &tlskeys_reference, list) {
1212 if (ref2->unique_id == i) {
1213 i++;
1214 break;
1215 }
1216 }
1217 if (&ref2->list == &tlskeys_reference)
1218 break;
1219 }
1220
1221 /* Uses the unique id and increment it for the next entry. */
1222 ref->unique_id = i;
1223 i++;
1224 }
1225 }
1226
1227 /* This sort the reference list by id. */
1228 list_for_each_entry_safe(ref, ref2, &tlskeys_reference, list) {
1229 LIST_DEL(&ref->list);
1230 list_for_each_entry(ref3, &tkr, list) {
1231 if (ref->unique_id < ref3->unique_id) {
1232 LIST_ADDQ(&ref3->list, &ref->list);
1233 break;
1234 }
1235 }
1236 if (&ref3->list == &tkr)
1237 LIST_ADDQ(&tkr, &ref->list);
1238 }
1239
1240 /* swap root */
1241 LIST_ADD(&tkr, &tlskeys_reference);
1242 LIST_DEL(&tkr);
Christopher Fauletfc633b62020-11-06 15:24:23 +01001243 return ERR_NONE;
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +02001244}
Nenad Merdanovic05552d42015-02-27 19:56:49 +01001245#endif /* SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB */
1246
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001247#ifndef OPENSSL_NO_OCSP
William Lallemand76b4a122020-08-04 17:41:39 +02001248int ocsp_ex_index = -1;
1249
yanbzhube2774d2015-12-10 15:07:30 -05001250int ssl_sock_get_ocsp_arg_kt_index(int evp_keytype)
1251{
1252 switch (evp_keytype) {
1253 case EVP_PKEY_RSA:
1254 return 2;
1255 case EVP_PKEY_DSA:
1256 return 0;
1257 case EVP_PKEY_EC:
1258 return 1;
1259 }
1260
1261 return -1;
1262}
1263
Emeric Brun4147b2e2014-06-16 18:36:30 +02001264/*
1265 * Callback used to set OCSP status extension content in server hello.
1266 */
1267int ssl_sock_ocsp_stapling_cbk(SSL *ssl, void *arg)
1268{
yanbzhube2774d2015-12-10 15:07:30 -05001269 struct certificate_ocsp *ocsp;
1270 struct ocsp_cbk_arg *ocsp_arg;
1271 char *ssl_buf;
William Lallemand76b4a122020-08-04 17:41:39 +02001272 SSL_CTX *ctx;
yanbzhube2774d2015-12-10 15:07:30 -05001273 EVP_PKEY *ssl_pkey;
1274 int key_type;
1275 int index;
1276
William Lallemand76b4a122020-08-04 17:41:39 +02001277 ctx = SSL_get_SSL_CTX(ssl);
1278 if (!ctx)
1279 return SSL_TLSEXT_ERR_NOACK;
1280
1281 ocsp_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
1282 if (!ocsp_arg)
1283 return SSL_TLSEXT_ERR_NOACK;
yanbzhube2774d2015-12-10 15:07:30 -05001284
1285 ssl_pkey = SSL_get_privatekey(ssl);
1286 if (!ssl_pkey)
1287 return SSL_TLSEXT_ERR_NOACK;
1288
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001289 key_type = EVP_PKEY_base_id(ssl_pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001290
1291 if (ocsp_arg->is_single && ocsp_arg->single_kt == key_type)
1292 ocsp = ocsp_arg->s_ocsp;
1293 else {
1294 /* For multiple certs per context, we have to find the correct OCSP response based on
1295 * the certificate type
1296 */
1297 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
1298
1299 if (index < 0)
1300 return SSL_TLSEXT_ERR_NOACK;
1301
1302 ocsp = ocsp_arg->m_ocsp[index];
1303
1304 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001305
1306 if (!ocsp ||
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001307 !ocsp->response.area ||
1308 !ocsp->response.data ||
Emeric Brun4f3c87a2014-06-20 15:46:13 +02001309 (ocsp->expire < now.tv_sec))
Emeric Brun4147b2e2014-06-16 18:36:30 +02001310 return SSL_TLSEXT_ERR_NOACK;
1311
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001312 ssl_buf = OPENSSL_malloc(ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001313 if (!ssl_buf)
1314 return SSL_TLSEXT_ERR_NOACK;
1315
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001316 memcpy(ssl_buf, ocsp->response.area, ocsp->response.data);
1317 SSL_set_tlsext_status_ocsp_resp(ssl, ssl_buf, ocsp->response.data);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001318
1319 return SSL_TLSEXT_ERR_OK;
1320}
1321
William Lallemand4a660132019-10-14 14:51:41 +02001322#endif
1323
Ilya Shipitsinb3201a32020-10-18 09:11:50 +05001324#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
William Lallemand76b4a122020-08-04 17:41:39 +02001325
1326
1327/*
1328 * Decrease the refcount of the struct ocsp_response and frees it if it's not
1329 * used anymore. Also removes it from the tree if free'd.
1330 */
1331static void ssl_sock_free_ocsp(struct certificate_ocsp *ocsp)
1332{
1333 if (!ocsp)
1334 return;
1335
1336 ocsp->refcount--;
1337 if (ocsp->refcount <= 0) {
1338 ebmb_delete(&ocsp->key);
1339 chunk_destroy(&ocsp->response);
1340 free(ocsp);
1341 }
1342}
1343
1344
Emeric Brun4147b2e2014-06-16 18:36:30 +02001345/*
1346 * This function enables the handling of OCSP status extension on 'ctx' if a
William Lallemand246c0242019-10-11 08:59:13 +02001347 * ocsp_response buffer was found in the cert_key_and_chain. To enable OCSP
1348 * status extension, the issuer's certificate is mandatory. It should be
1349 * present in ckch->ocsp_issuer.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001350 *
William Lallemand246c0242019-10-11 08:59:13 +02001351 * In addition, the ckch->ocsp_reponse buffer is loaded as a DER format of an
1352 * OCSP response. If file is empty or content is not a valid OCSP response,
1353 * OCSP status extension is enabled but OCSP response is ignored (a warning is
1354 * displayed).
Emeric Brun4147b2e2014-06-16 18:36:30 +02001355 *
1356 * Returns 1 if no ".ocsp" file found, 0 if OCSP status extension is
Joseph Herlant017b3da2018-11-15 09:07:59 -08001357 * successfully enabled, or -1 in other error case.
Emeric Brun4147b2e2014-06-16 18:36:30 +02001358 */
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001359static 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 +02001360{
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001361 X509 *x, *issuer;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001362 OCSP_CERTID *cid = NULL;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001363 int i, ret = -1;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001364 struct certificate_ocsp *ocsp = NULL, *iocsp;
1365 char *warn = NULL;
1366 unsigned char *p;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001367 void (*callback) (void);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001368
Emeric Brun4147b2e2014-06-16 18:36:30 +02001369
William Lallemand246c0242019-10-11 08:59:13 +02001370 x = ckch->cert;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001371 if (!x)
1372 goto out;
1373
William Lallemand246c0242019-10-11 08:59:13 +02001374 issuer = ckch->ocsp_issuer;
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001375 /* take issuer from chain over ocsp_issuer, is what is done historicaly */
1376 if (chain) {
1377 /* check if one of the certificate of the chain is the issuer */
1378 for (i = 0; i < sk_X509_num(chain); i++) {
1379 X509 *ti = sk_X509_value(chain, i);
1380 if (X509_check_issued(ti, x) == X509_V_OK) {
1381 issuer = ti;
1382 break;
1383 }
1384 }
1385 }
William Lallemand246c0242019-10-11 08:59:13 +02001386 if (!issuer)
1387 goto out;
Emeric Brun4147b2e2014-06-16 18:36:30 +02001388
1389 cid = OCSP_cert_to_id(0, x, issuer);
1390 if (!cid)
1391 goto out;
1392
1393 i = i2d_OCSP_CERTID(cid, NULL);
1394 if (!i || (i > OCSP_MAX_CERTID_ASN1_LENGTH))
1395 goto out;
1396
Vincent Bernat02779b62016-04-03 13:48:43 +02001397 ocsp = calloc(1, sizeof(*ocsp));
Emeric Brun4147b2e2014-06-16 18:36:30 +02001398 if (!ocsp)
1399 goto out;
1400
1401 p = ocsp->key_data;
1402 i2d_OCSP_CERTID(cid, &p);
1403
1404 iocsp = (struct certificate_ocsp *)ebmb_insert(&cert_ocsp_tree, &ocsp->key, OCSP_MAX_CERTID_ASN1_LENGTH);
1405 if (iocsp == ocsp)
1406 ocsp = NULL;
1407
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001408#ifndef SSL_CTX_get_tlsext_status_cb
1409# define SSL_CTX_get_tlsext_status_cb(ctx, cb) \
1410 *cb = (void (*) (void))ctx->tlsext_status_cb;
1411#endif
1412 SSL_CTX_get_tlsext_status_cb(ctx, &callback);
1413
1414 if (!callback) {
William Lallemanda560c062020-07-31 11:43:20 +02001415 struct ocsp_cbk_arg *cb_arg;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001416 EVP_PKEY *pkey;
yanbzhube2774d2015-12-10 15:07:30 -05001417
William Lallemanda560c062020-07-31 11:43:20 +02001418 cb_arg = calloc(1, sizeof(*cb_arg));
1419 if (!cb_arg)
1420 goto out;
1421
yanbzhube2774d2015-12-10 15:07:30 -05001422 cb_arg->is_single = 1;
1423 cb_arg->s_ocsp = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001424 iocsp->refcount++;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001425
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001426 pkey = X509_get_pubkey(x);
1427 cb_arg->single_kt = EVP_PKEY_base_id(pkey);
1428 EVP_PKEY_free(pkey);
yanbzhube2774d2015-12-10 15:07:30 -05001429
1430 SSL_CTX_set_tlsext_status_cb(ctx, ssl_sock_ocsp_stapling_cbk);
William Lallemand76b4a122020-08-04 17:41:39 +02001431 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 */
1432
yanbzhube2774d2015-12-10 15:07:30 -05001433 } else {
1434 /*
1435 * If the ctx has a status CB, then we have previously set an OCSP staple for this ctx
1436 * Update that cb_arg with the new cert's staple
1437 */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001438 struct ocsp_cbk_arg *cb_arg;
yanbzhube2774d2015-12-10 15:07:30 -05001439 struct certificate_ocsp *tmp_ocsp;
1440 int index;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001441 int key_type;
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001442 EVP_PKEY *pkey;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001443
William Lallemand76b4a122020-08-04 17:41:39 +02001444 cb_arg = SSL_CTX_get_ex_data(ctx, ocsp_ex_index);
yanbzhube2774d2015-12-10 15:07:30 -05001445
1446 /*
1447 * The following few lines will convert cb_arg from a single ocsp to multi ocsp
1448 * the order of operations below matter, take care when changing it
1449 */
1450 tmp_ocsp = cb_arg->s_ocsp;
1451 index = ssl_sock_get_ocsp_arg_kt_index(cb_arg->single_kt);
1452 cb_arg->s_ocsp = NULL;
1453 cb_arg->m_ocsp[index] = tmp_ocsp;
1454 cb_arg->is_single = 0;
1455 cb_arg->single_kt = 0;
1456
Emmanuel Hocdetb7a4c342017-01-06 12:57:46 +01001457 pkey = X509_get_pubkey(x);
1458 key_type = EVP_PKEY_base_id(pkey);
1459 EVP_PKEY_free(pkey);
1460
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001461 index = ssl_sock_get_ocsp_arg_kt_index(key_type);
William Lallemand76b4a122020-08-04 17:41:39 +02001462 if (index >= 0 && !cb_arg->m_ocsp[index]) {
yanbzhube2774d2015-12-10 15:07:30 -05001463 cb_arg->m_ocsp[index] = iocsp;
William Lallemand76b4a122020-08-04 17:41:39 +02001464 iocsp->refcount++;
1465 }
yanbzhube2774d2015-12-10 15:07:30 -05001466 }
Emeric Brun4147b2e2014-06-16 18:36:30 +02001467
1468 ret = 0;
1469
1470 warn = NULL;
William Lallemand86e4d632020-08-07 00:44:32 +02001471 if (ssl_sock_load_ocsp_response(ckch->ocsp_response, iocsp, cid, &warn)) {
William Lallemand3b5f3602019-10-16 18:05:05 +02001472 memprintf(&warn, "Loading: %s. Content will be ignored", warn ? warn : "failure");
Christopher Faulet767a84b2017-11-24 16:50:31 +01001473 ha_warning("%s.\n", warn);
Emeric Brun4147b2e2014-06-16 18:36:30 +02001474 }
1475
1476out:
Emeric Brun4147b2e2014-06-16 18:36:30 +02001477 if (cid)
1478 OCSP_CERTID_free(cid);
1479
1480 if (ocsp)
1481 free(ocsp);
1482
1483 if (warn)
1484 free(warn);
1485
Emeric Brun4147b2e2014-06-16 18:36:30 +02001486 return ret;
1487}
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01001488#endif
1489
1490#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01001491static 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 +02001492{
William Lallemand4a660132019-10-14 14:51:41 +02001493 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 +02001494}
1495#endif
1496
William Lallemand4a660132019-10-14 14:51:41 +02001497
Willy Tarreau5db847a2019-05-09 14:13:35 +02001498#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001499
1500#define CT_EXTENSION_TYPE 18
1501
William Lallemand03c331c2020-05-13 10:10:01 +02001502int sctl_ex_index = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001503
1504int ssl_sock_sctl_add_cbk(SSL *ssl, unsigned ext_type, const unsigned char **out, size_t *outlen, int *al, void *add_arg)
1505{
Willy Tarreau83061a82018-07-13 11:56:34 +02001506 struct buffer *sctl = add_arg;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001507
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001508 *out = (unsigned char *) sctl->area;
1509 *outlen = sctl->data;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001510
1511 return 1;
1512}
1513
1514int ssl_sock_sctl_parse_cbk(SSL *s, unsigned int ext_type, const unsigned char *in, size_t inlen, int *al, void *parse_arg)
1515{
1516 return 1;
1517}
1518
William Lallemanda17f4112019-10-10 15:16:44 +02001519static int ssl_sock_load_sctl(SSL_CTX *ctx, struct buffer *sctl)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001520{
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001521 int ret = -1;
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001522
William Lallemanda17f4112019-10-10 15:16:44 +02001523 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 +01001524 goto out;
1525
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01001526 SSL_CTX_set_ex_data(ctx, sctl_ex_index, sctl);
1527
1528 ret = 0;
1529
1530out:
1531 return ret;
1532}
1533
1534#endif
1535
Emeric Brune1f38db2012-09-03 20:36:47 +02001536void ssl_sock_infocbk(const SSL *ssl, int where, int ret)
1537{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001538 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001539 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001540 BIO *write_bio;
Willy Tarreau622317d2015-02-27 16:36:16 +01001541 (void)ret; /* shut gcc stupid warning */
Emeric Brune1f38db2012-09-03 20:36:47 +02001542
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001543#ifndef SSL_OP_NO_RENEGOTIATION
1544 /* Please note that BoringSSL defines this macro to zero so don't
1545 * change this to #if and do not assign a default value to this macro!
1546 */
Emeric Brune1f38db2012-09-03 20:36:47 +02001547 if (where & SSL_CB_HANDSHAKE_START) {
1548 /* Disable renegotiation (CVE-2009-3555) */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01001549 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 +02001550 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01001551 conn->err_code = CO_ER_SSL_RENEG;
1552 }
Emeric Brune1f38db2012-09-03 20:36:47 +02001553 }
Dirkjan Bussink526894f2019-01-21 09:35:03 -08001554#endif
Emeric Brund8b2bb52014-01-28 15:43:53 +01001555
1556 if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001557 if (!(ctx->xprt_st & SSL_SOCK_ST_FL_16K_WBFSIZE)) {
Emeric Brund8b2bb52014-01-28 15:43:53 +01001558 /* Long certificate chains optimz
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001559 If write and read bios are different, we
Emeric Brund8b2bb52014-01-28 15:43:53 +01001560 consider that the buffering was activated,
1561 so we rise the output buffer size from 4k
1562 to 16k */
1563 write_bio = SSL_get_wbio(ssl);
1564 if (write_bio != SSL_get_rbio(ssl)) {
1565 BIO_set_write_buffer_size(write_bio, 16384);
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001566 ctx->xprt_st |= SSL_SOCK_ST_FL_16K_WBFSIZE;
Emeric Brund8b2bb52014-01-28 15:43:53 +01001567 }
1568 }
1569 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02001570}
1571
Emeric Brune64aef12012-09-21 13:15:06 +02001572/* Callback is called for each certificate of the chain during a verify
1573 ok is set to 1 if preverify detect no error on current certificate.
1574 Returns 0 to break the handshake, 1 otherwise. */
Evan Broderbe554312013-06-27 00:05:25 -07001575int ssl_sock_bind_verifycbk(int ok, X509_STORE_CTX *x_store)
Emeric Brune64aef12012-09-21 13:15:06 +02001576{
1577 SSL *ssl;
1578 struct connection *conn;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001579 struct ssl_sock_ctx *ctx;
Emeric Brun81c00f02012-09-21 14:31:21 +02001580 int err, depth;
Emeric Brune64aef12012-09-21 13:15:06 +02001581
1582 ssl = X509_STORE_CTX_get_ex_data(x_store, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02001583 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emeric Brune64aef12012-09-21 13:15:06 +02001584
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001585 ctx = conn->xprt_ctx;
1586
1587 ctx->xprt_st |= SSL_SOCK_ST_FL_VERIFY_DONE;
Emeric Brune64aef12012-09-21 13:15:06 +02001588
Emeric Brun81c00f02012-09-21 14:31:21 +02001589 if (ok) /* no errors */
1590 return ok;
1591
1592 depth = X509_STORE_CTX_get_error_depth(x_store);
1593 err = X509_STORE_CTX_get_error(x_store);
1594
1595 /* check if CA error needs to be ignored */
1596 if (depth > 0) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001597 if (!SSL_SOCK_ST_TO_CA_ERROR(ctx->xprt_st)) {
1598 ctx->xprt_st |= SSL_SOCK_CA_ERROR_TO_ST(err);
1599 ctx->xprt_st |= SSL_SOCK_CAEDEPTH_TO_ST(depth);
Emeric Brunf282a812012-09-21 15:27:54 +02001600 }
1601
Willy Tarreau731248f2020-02-04 14:02:02 +01001602 if (err < 64 && __objt_listener(conn->target)->bind_conf->ca_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001603 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001604 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001605 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001606 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001607
Willy Tarreau20879a02012-12-03 16:32:10 +01001608 conn->err_code = CO_ER_SSL_CA_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001609 return 0;
1610 }
1611
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01001612 if (!SSL_SOCK_ST_TO_CRTERROR(ctx->xprt_st))
1613 ctx->xprt_st |= SSL_SOCK_CRTERROR_TO_ST(err);
Emeric Brunf282a812012-09-21 15:27:54 +02001614
Emeric Brun81c00f02012-09-21 14:31:21 +02001615 /* check if certificate error needs to be ignored */
Willy Tarreau731248f2020-02-04 14:02:02 +01001616 if (err < 64 && __objt_listener(conn->target)->bind_conf->crt_ignerr & (1ULL << err)) {
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02001617 ssl_sock_dump_errors(conn);
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001618 ERR_clear_error();
Emeric Brun81c00f02012-09-21 14:31:21 +02001619 return 1;
Emeric Brun1eb20ef2012-12-03 13:24:29 +01001620 }
Emeric Brun81c00f02012-09-21 14:31:21 +02001621
Willy Tarreau20879a02012-12-03 16:32:10 +01001622 conn->err_code = CO_ER_SSL_CRT_FAIL;
Emeric Brun81c00f02012-09-21 14:31:21 +02001623 return 0;
Emeric Brune64aef12012-09-21 13:15:06 +02001624}
1625
Dragan Dosen9ac98092020-05-11 15:51:45 +02001626#ifdef TLS1_RT_HEARTBEAT
1627static void ssl_sock_parse_heartbeat(struct connection *conn, int write_p, int version,
1628 int content_type, const void *buf, size_t len,
1629 SSL *ssl)
1630{
1631 /* test heartbeat received (write_p is set to 0
1632 for a received record) */
1633 if ((content_type == TLS1_RT_HEARTBEAT) && (write_p == 0)) {
1634 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
1635 const unsigned char *p = buf;
1636 unsigned int payload;
1637
1638 ctx->xprt_st |= SSL_SOCK_RECV_HEARTBEAT;
1639
1640 /* Check if this is a CVE-2014-0160 exploitation attempt. */
1641 if (*p != TLS1_HB_REQUEST)
1642 return;
1643
1644 if (len < 1 + 2 + 16) /* 1 type + 2 size + 0 payload + 16 padding */
1645 goto kill_it;
1646
1647 payload = (p[1] * 256) + p[2];
1648 if (3 + payload + 16 <= len)
1649 return; /* OK no problem */
1650 kill_it:
1651 /* We have a clear heartbleed attack (CVE-2014-0160), the
1652 * advertised payload is larger than the advertised packet
1653 * length, so we have garbage in the buffer between the
1654 * payload and the end of the buffer (p+len). We can't know
1655 * if the SSL stack is patched, and we don't know if we can
1656 * safely wipe out the area between p+3+len and payload.
1657 * So instead, we prevent the response from being sent by
1658 * setting the max_send_fragment to 0 and we report an SSL
1659 * error, which will kill this connection. It will be reported
1660 * above as SSL_ERROR_SSL while an other handshake failure with
1661 * a heartbeat message will be reported as SSL_ERROR_SYSCALL.
1662 */
1663 ssl->max_send_fragment = 0;
1664 SSLerr(SSL_F_TLS1_HEARTBEAT, SSL_R_SSL_HANDSHAKE_FAILURE);
1665 }
1666}
1667#endif
1668
1669static void ssl_sock_parse_clienthello(struct connection *conn, int write_p, int version,
1670 int content_type, const void *buf, size_t len,
1671 SSL *ssl)
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001672{
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001673 struct ssl_capture *capture;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001674 unsigned char *msg;
1675 unsigned char *end;
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001676 size_t rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001677
1678 /* This function is called for "from client" and "to server"
1679 * connections. The combination of write_p == 0 and content_type == 22
Joseph Herlant017b3da2018-11-15 09:07:59 -08001680 * is only available during "from client" connection.
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001681 */
1682
1683 /* "write_p" is set to 0 is the bytes are received messages,
1684 * otherwise it is set to 1.
1685 */
1686 if (write_p != 0)
1687 return;
1688
1689 /* content_type contains the type of message received or sent
1690 * according with the SSL/TLS protocol spec. This message is
1691 * encoded with one byte. The value 256 (two bytes) is used
1692 * for designing the SSL/TLS record layer. According with the
1693 * rfc6101, the expected message (other than 256) are:
1694 * - change_cipher_spec(20)
1695 * - alert(21)
1696 * - handshake(22)
1697 * - application_data(23)
1698 * - (255)
1699 * We are interessed by the handshake and specially the client
1700 * hello.
1701 */
1702 if (content_type != 22)
1703 return;
1704
1705 /* The message length is at least 4 bytes, containing the
1706 * message type and the message length.
1707 */
1708 if (len < 4)
1709 return;
1710
1711 /* First byte of the handshake message id the type of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001712 * message. The known types are:
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001713 * - hello_request(0)
1714 * - client_hello(1)
1715 * - server_hello(2)
1716 * - certificate(11)
1717 * - server_key_exchange (12)
1718 * - certificate_request(13)
1719 * - server_hello_done(14)
1720 * We are interested by the client hello.
1721 */
1722 msg = (unsigned char *)buf;
1723 if (msg[0] != 1)
1724 return;
1725
1726 /* Next three bytes are the length of the message. The total length
1727 * must be this decoded length + 4. If the length given as argument
1728 * is not the same, we abort the protocol dissector.
1729 */
1730 rec_len = (msg[1] << 16) + (msg[2] << 8) + msg[3];
1731 if (len < rec_len + 4)
1732 return;
1733 msg += 4;
1734 end = msg + rec_len;
1735 if (end < msg)
1736 return;
1737
1738 /* Expect 2 bytes for protocol version (1 byte for major and 1 byte
1739 * for minor, the random, composed by 4 bytes for the unix time and
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001740 * 28 bytes for unix payload. So we jump 1 + 1 + 4 + 28.
1741 */
1742 msg += 1 + 1 + 4 + 28;
1743 if (msg > end)
1744 return;
1745
1746 /* Next, is session id:
1747 * if present, we have to jump by length + 1 for the size information
1748 * if not present, we have to jump by 1 only
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001749 */
Baptiste Assmann6be139f2018-11-28 15:20:25 +01001750 if (msg[0] > 0)
1751 msg += msg[0];
1752 msg += 1;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001753 if (msg > end)
1754 return;
1755
1756 /* Next two bytes are the ciphersuite length. */
1757 if (msg + 2 > end)
1758 return;
1759 rec_len = (msg[0] << 8) + msg[1];
1760 msg += 2;
1761 if (msg + rec_len > end || msg + rec_len < msg)
1762 return;
1763
Willy Tarreaubafbe012017-11-24 17:34:44 +01001764 capture = pool_alloc_dirty(pool_head_ssl_capture);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001765 if (!capture)
1766 return;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001767 /* Compute the xxh64 of the ciphersuite. */
1768 capture->xxh64 = XXH64(msg, rec_len, 0);
1769
1770 /* Capture the ciphersuite. */
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001771 capture->ciphersuite_len = (global_ssl.capture_cipherlist < rec_len) ?
1772 global_ssl.capture_cipherlist : rec_len;
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001773 memcpy(capture->ciphersuite, msg, capture->ciphersuite_len);
Emmanuel Hocdete3804742017-03-08 11:07:10 +01001774
1775 SSL_set_ex_data(ssl, ssl_capture_ptr_index, capture);
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001776}
William Lallemand7d42ef52020-07-06 11:41:30 +02001777
1778
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05001779#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02001780static void ssl_init_keylog(struct connection *conn, int write_p, int version,
1781 int content_type, const void *buf, size_t len,
1782 SSL *ssl)
1783{
1784 struct ssl_keylog *keylog;
1785
1786 if (SSL_get_ex_data(ssl, ssl_keylog_index))
1787 return;
1788
1789 keylog = pool_alloc(pool_head_ssl_keylog);
1790 if (!keylog)
1791 return;
1792
1793 memset(keylog, 0, sizeof(*keylog));
1794
1795 if (!SSL_set_ex_data(ssl, ssl_keylog_index, keylog)) {
1796 pool_free(pool_head_ssl_keylog, keylog);
1797 return;
1798 }
1799}
1800#endif
Thierry FOURNIER5bf77322017-02-25 12:45:22 +01001801
Emeric Brun29f037d2014-04-25 19:05:36 +02001802/* Callback is called for ssl protocol analyse */
1803void ssl_sock_msgcbk(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
1804{
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001805 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
1806 struct ssl_sock_msg_callback *cbk;
1807
Dragan Dosen1e7ed042020-05-08 18:30:00 +02001808 /* Try to call all callback functions that were registered by using
1809 * ssl_sock_register_msg_callback().
1810 */
1811 list_for_each_entry(cbk, &ssl_sock_msg_callbacks, list) {
1812 cbk->func(conn, write_p, version, content_type, buf, len, ssl);
1813 }
Emeric Brun29f037d2014-04-25 19:05:36 +02001814}
1815
Bernard Spil13c53f82018-02-15 13:34:58 +01001816#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchardc7566002018-11-20 23:33:50 +01001817static int ssl_sock_srv_select_protos(SSL *s, unsigned char **out, unsigned char *outlen,
1818 const unsigned char *in, unsigned int inlen,
1819 void *arg)
1820{
1821 struct server *srv = arg;
1822
1823 if (SSL_select_next_proto(out, outlen, in, inlen, (unsigned char *)srv->ssl_ctx.npn_str,
1824 srv->ssl_ctx.npn_len) == OPENSSL_NPN_NEGOTIATED)
1825 return SSL_TLSEXT_ERR_OK;
1826 return SSL_TLSEXT_ERR_NOACK;
1827}
1828#endif
1829
1830#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001831/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001832 * negotiable protocols for NPN.
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001833 */
1834static int ssl_sock_advertise_npn_protos(SSL *s, const unsigned char **data,
1835 unsigned int *len, void *arg)
1836{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001837 struct ssl_bind_conf *conf = arg;
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02001838
1839 *data = (const unsigned char *)conf->npn_str;
1840 *len = conf->npn_len;
1841 return SSL_TLSEXT_ERR_OK;
1842}
1843#endif
1844
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001845#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Willy Tarreauab861d32013-04-02 02:30:41 +02001846/* This callback is used so that the server advertises the list of
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05001847 * negotiable protocols for ALPN.
Willy Tarreauab861d32013-04-02 02:30:41 +02001848 */
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001849static int ssl_sock_advertise_alpn_protos(SSL *s, const unsigned char **out,
1850 unsigned char *outlen,
1851 const unsigned char *server,
1852 unsigned int server_len, void *arg)
Willy Tarreauab861d32013-04-02 02:30:41 +02001853{
Emmanuel Hocdet98263292016-12-29 18:26:15 +01001854 struct ssl_bind_conf *conf = arg;
Willy Tarreauab861d32013-04-02 02:30:41 +02001855
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01001856 if (SSL_select_next_proto((unsigned char**) out, outlen, (const unsigned char *)conf->alpn_str,
1857 conf->alpn_len, server, server_len) != OPENSSL_NPN_NEGOTIATED) {
1858 return SSL_TLSEXT_ERR_NOACK;
1859 }
Willy Tarreauab861d32013-04-02 02:30:41 +02001860 return SSL_TLSEXT_ERR_OK;
1861}
1862#endif
1863
Willy Tarreauc8ad3be2015-06-17 15:48:26 +02001864#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01001865#ifndef SSL_NO_GENERATE_CERTIFICATES
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02001866
Shimi Gersneradabbfe2020-08-23 13:58:13 +03001867/* Configure a DNS SAN extenion on a certificate. */
1868int ssl_sock_add_san_ext(X509V3_CTX* ctx, X509* cert, const char *servername) {
1869 int failure = 0;
1870 X509_EXTENSION *san_ext = NULL;
1871 CONF *conf = NULL;
1872 struct buffer *san_name = get_trash_chunk();
1873
1874 conf = NCONF_new(NULL);
1875 if (!conf) {
1876 failure = 1;
1877 goto cleanup;
1878 }
1879
1880 /* Build an extension based on the DNS entry above */
1881 chunk_appendf(san_name, "DNS:%s", servername);
1882 san_ext = X509V3_EXT_nconf_nid(conf, ctx, NID_subject_alt_name, san_name->area);
1883 if (!san_ext) {
1884 failure = 1;
1885 goto cleanup;
1886 }
1887
1888 /* Add the extension */
1889 if (!X509_add_ext(cert, san_ext, -1 /* Add to end */)) {
1890 failure = 1;
1891 goto cleanup;
1892 }
1893
1894 /* Success */
1895 failure = 0;
1896
1897cleanup:
1898 if (NULL != san_ext) X509_EXTENSION_free(san_ext);
1899 if (NULL != conf) NCONF_free(conf);
1900
1901 return failure;
1902}
1903
Christopher Faulet30548802015-06-11 13:39:32 +02001904/* Create a X509 certificate with the specified servername and serial. This
1905 * function returns a SSL_CTX object or NULL if an error occurs. */
Christopher Faulet7969a332015-10-09 11:15:03 +02001906static SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01001907ssl_sock_do_create_cert(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001908{
Shimi Gersner5846c492020-08-23 13:58:12 +03001909 X509 *cacert = bind_conf->ca_sign_ckch->cert;
1910 EVP_PKEY *capkey = bind_conf->ca_sign_ckch->key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001911 SSL_CTX *ssl_ctx = NULL;
1912 X509 *newcrt = NULL;
1913 EVP_PKEY *pkey = NULL;
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001914 SSL *tmp_ssl = NULL;
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001915 CONF *ctmp = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001916 X509_NAME *name;
1917 const EVP_MD *digest;
1918 X509V3_CTX ctx;
1919 unsigned int i;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001920 int key_type;
Christopher Faulet31af49d2015-06-09 17:29:50 +02001921
Christopher Faulet48a83322017-07-28 16:56:09 +02001922 /* Get the private key of the default certificate and use it */
Willy Tarreau5db847a2019-05-09 14:13:35 +02001923#if (HA_OPENSSL_VERSION_NUMBER >= 0x10002000L)
Emmanuel Hocdet15969292017-08-11 10:56:00 +02001924 pkey = SSL_CTX_get0_privatekey(bind_conf->default_ctx);
1925#else
1926 tmp_ssl = SSL_new(bind_conf->default_ctx);
1927 if (tmp_ssl)
1928 pkey = SSL_get_privatekey(tmp_ssl);
1929#endif
1930 if (!pkey)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001931 goto mkcert_error;
1932
1933 /* Create the certificate */
1934 if (!(newcrt = X509_new()))
1935 goto mkcert_error;
1936
1937 /* Set version number for the certificate (X509v3) and the serial
1938 * number */
1939 if (X509_set_version(newcrt, 2L) != 1)
1940 goto mkcert_error;
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01001941 ASN1_INTEGER_set(X509_get_serialNumber(newcrt), _HA_ATOMIC_ADD(&ssl_ctx_serial, 1));
Christopher Faulet31af49d2015-06-09 17:29:50 +02001942
1943 /* Set duration for the certificate */
Rosen Penev68185952018-12-14 08:47:02 -08001944 if (!X509_gmtime_adj(X509_getm_notBefore(newcrt), (long)-60*60*24) ||
1945 !X509_gmtime_adj(X509_getm_notAfter(newcrt),(long)60*60*24*365))
Christopher Faulet31af49d2015-06-09 17:29:50 +02001946 goto mkcert_error;
1947
1948 /* set public key in the certificate */
1949 if (X509_set_pubkey(newcrt, pkey) != 1)
1950 goto mkcert_error;
1951
1952 /* Set issuer name from the CA */
1953 if (!(name = X509_get_subject_name(cacert)))
1954 goto mkcert_error;
1955 if (X509_set_issuer_name(newcrt, name) != 1)
1956 goto mkcert_error;
1957
1958 /* Set the subject name using the same, but the CN */
1959 name = X509_NAME_dup(name);
1960 if (X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC,
1961 (const unsigned char *)servername,
1962 -1, -1, 0) != 1) {
1963 X509_NAME_free(name);
1964 goto mkcert_error;
1965 }
1966 if (X509_set_subject_name(newcrt, name) != 1) {
1967 X509_NAME_free(name);
1968 goto mkcert_error;
1969 }
1970 X509_NAME_free(name);
1971
1972 /* Add x509v3 extensions as specified */
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001973 ctmp = NCONF_new(NULL);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001974 X509V3_set_ctx(&ctx, cacert, newcrt, NULL, NULL, 0);
1975 for (i = 0; i < X509V3_EXT_SIZE; i++) {
1976 X509_EXTENSION *ext;
1977
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02001978 if (!(ext = X509V3_EXT_nconf(ctmp, &ctx, x509v3_ext_names[i], x509v3_ext_values[i])))
Christopher Faulet31af49d2015-06-09 17:29:50 +02001979 goto mkcert_error;
1980 if (!X509_add_ext(newcrt, ext, -1)) {
1981 X509_EXTENSION_free(ext);
1982 goto mkcert_error;
1983 }
1984 X509_EXTENSION_free(ext);
1985 }
1986
Shimi Gersneradabbfe2020-08-23 13:58:13 +03001987 /* Add SAN extension */
1988 if (ssl_sock_add_san_ext(&ctx, newcrt, servername)) {
1989 goto mkcert_error;
1990 }
1991
Christopher Faulet31af49d2015-06-09 17:29:50 +02001992 /* Sign the certificate with the CA private key */
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02001993
1994 key_type = EVP_PKEY_base_id(capkey);
1995
1996 if (key_type == EVP_PKEY_DSA)
1997 digest = EVP_sha1();
1998 else if (key_type == EVP_PKEY_RSA)
Christopher Faulet31af49d2015-06-09 17:29:50 +02001999 digest = EVP_sha256();
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002000 else if (key_type == EVP_PKEY_EC)
Christopher Faulet7969a332015-10-09 11:15:03 +02002001 digest = EVP_sha256();
2002 else {
Willy Tarreau9a1ab082019-05-09 13:26:41 +02002003#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000000fL) && !defined(OPENSSL_IS_BORINGSSL)
Christopher Faulet7969a332015-10-09 11:15:03 +02002004 int nid;
2005
2006 if (EVP_PKEY_get_default_digest_nid(capkey, &nid) <= 0)
2007 goto mkcert_error;
2008 if (!(digest = EVP_get_digestbynid(nid)))
2009 goto mkcert_error;
Christopher Faulete7db2162015-10-19 13:59:24 +02002010#else
2011 goto mkcert_error;
2012#endif
Christopher Faulet7969a332015-10-09 11:15:03 +02002013 }
2014
Christopher Faulet31af49d2015-06-09 17:29:50 +02002015 if (!(X509_sign(newcrt, capkey, digest)))
2016 goto mkcert_error;
2017
2018 /* Create and set the new SSL_CTX */
2019 if (!(ssl_ctx = SSL_CTX_new(SSLv23_server_method())))
2020 goto mkcert_error;
2021 if (!SSL_CTX_use_PrivateKey(ssl_ctx, pkey))
2022 goto mkcert_error;
2023 if (!SSL_CTX_use_certificate(ssl_ctx, newcrt))
2024 goto mkcert_error;
2025 if (!SSL_CTX_check_private_key(ssl_ctx))
2026 goto mkcert_error;
2027
Shimi Gersner5846c492020-08-23 13:58:12 +03002028 /* Build chaining the CA cert and the rest of the chain, keep these order */
2029#if defined(SSL_CTX_add1_chain_cert)
2030 if (!SSL_CTX_add1_chain_cert(ssl_ctx, bind_conf->ca_sign_ckch->cert)) {
2031 goto mkcert_error;
2032 }
2033
2034 if (bind_conf->ca_sign_ckch->chain) {
2035 for (i = 0; i < sk_X509_num(bind_conf->ca_sign_ckch->chain); i++) {
2036 X509 *chain_cert = sk_X509_value(bind_conf->ca_sign_ckch->chain, i);
2037 if (!SSL_CTX_add1_chain_cert(ssl_ctx, chain_cert)) {
2038 goto mkcert_error;
2039 }
2040 }
2041 }
2042#endif
2043
Christopher Faulet31af49d2015-06-09 17:29:50 +02002044 if (newcrt) X509_free(newcrt);
Christopher Faulet7969a332015-10-09 11:15:03 +02002045
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002046#ifndef OPENSSL_NO_DH
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002047 SSL_CTX_set_tmp_dh_callback(ssl_ctx, ssl_get_tmp_dh);
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01002048#endif
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002049#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
2050 {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002051 const char *ecdhe = (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe : ECDHE_DEFAULT_CURVE);
Christopher Faulet85b5a1a2015-10-09 11:46:32 +02002052 EC_KEY *ecc;
2053 int nid;
2054
2055 if ((nid = OBJ_sn2nid(ecdhe)) == NID_undef)
2056 goto end;
2057 if (!(ecc = EC_KEY_new_by_curve_name(nid)))
2058 goto end;
2059 SSL_CTX_set_tmp_ecdh(ssl_ctx, ecc);
2060 EC_KEY_free(ecc);
2061 }
2062#endif
2063 end:
Christopher Faulet31af49d2015-06-09 17:29:50 +02002064 return ssl_ctx;
2065
2066 mkcert_error:
Emmanuel Hocdeta9b84022018-10-01 18:41:36 +02002067 if (ctmp) NCONF_free(ctmp);
Emmanuel Hocdet15969292017-08-11 10:56:00 +02002068 if (tmp_ssl) SSL_free(tmp_ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002069 if (ssl_ctx) SSL_CTX_free(ssl_ctx);
2070 if (newcrt) X509_free(newcrt);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002071 return NULL;
2072}
2073
Christopher Faulet7969a332015-10-09 11:15:03 +02002074SSL_CTX *
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002075ssl_sock_create_cert(struct connection *conn, const char *servername, unsigned int key)
Christopher Faulet7969a332015-10-09 11:15:03 +02002076{
Willy Tarreau07d94e42018-09-20 10:57:52 +02002077 struct bind_conf *bind_conf = __objt_listener(conn->target)->bind_conf;
Olivier Houchard66ab4982019-02-26 18:37:15 +01002078 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002079
Olivier Houchard66ab4982019-02-26 18:37:15 +01002080 return ssl_sock_do_create_cert(servername, bind_conf, ctx->ssl);
Christopher Faulet7969a332015-10-09 11:15:03 +02002081}
2082
Christopher Faulet30548802015-06-11 13:39:32 +02002083/* Do a lookup for a certificate in the LRU cache used to store generated
Emeric Brun821bb9b2017-06-15 16:37:39 +02002084 * certificates and immediately assign it to the SSL session if not null. */
Christopher Faulet30548802015-06-11 13:39:32 +02002085SSL_CTX *
Emeric Brun821bb9b2017-06-15 16:37:39 +02002086ssl_sock_assign_generated_cert(unsigned int key, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet30548802015-06-11 13:39:32 +02002087{
2088 struct lru64 *lru = NULL;
2089
2090 if (ssl_ctx_lru_tree) {
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002091 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002092 lru = lru64_lookup(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002093 if (lru && lru->domain) {
2094 if (ssl)
2095 SSL_set_SSL_CTX(ssl, (SSL_CTX *)lru->data);
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002096 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002097 return (SSL_CTX *)lru->data;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002098 }
Willy Tarreau03f4ec42018-05-17 10:56:47 +02002099 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet30548802015-06-11 13:39:32 +02002100 }
2101 return NULL;
2102}
2103
Emeric Brun821bb9b2017-06-15 16:37:39 +02002104/* Same as <ssl_sock_assign_generated_cert> but without SSL session. This
2105 * function is not thread-safe, it should only be used to check if a certificate
2106 * exists in the lru cache (with no warranty it will not be removed by another
2107 * thread). It is kept for backward compatibility. */
2108SSL_CTX *
2109ssl_sock_get_generated_cert(unsigned int key, struct bind_conf *bind_conf)
2110{
2111 return ssl_sock_assign_generated_cert(key, bind_conf, NULL);
2112}
2113
Christopher Fauletd2cab922015-07-28 16:03:47 +02002114/* Set a certificate int the LRU cache used to store generated
2115 * certificate. Return 0 on success, otherwise -1 */
2116int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002117ssl_sock_set_generated_cert(SSL_CTX *ssl_ctx, unsigned int key, struct bind_conf *bind_conf)
Christopher Faulet30548802015-06-11 13:39:32 +02002118{
2119 struct lru64 *lru = NULL;
2120
2121 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002122 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Shimi Gersner5846c492020-08-23 13:58:12 +03002123 lru = lru64_get(key, ssl_ctx_lru_tree, bind_conf->ca_sign_ckch->cert, 0);
Emeric Brun821bb9b2017-06-15 16:37:39 +02002124 if (!lru) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002125 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002126 return -1;
Emeric Brun821bb9b2017-06-15 16:37:39 +02002127 }
Christopher Faulet30548802015-06-11 13:39:32 +02002128 if (lru->domain && lru->data)
2129 lru->free((SSL_CTX *)lru->data);
Shimi Gersner5846c492020-08-23 13:58:12 +03002130 lru64_commit(lru, ssl_ctx, bind_conf->ca_sign_ckch->cert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002131 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002132 return 0;
Christopher Faulet30548802015-06-11 13:39:32 +02002133 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02002134 return -1;
Christopher Faulet30548802015-06-11 13:39:32 +02002135}
2136
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002137/* Compute the key of the certificate. */
Christopher Faulet30548802015-06-11 13:39:32 +02002138unsigned int
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002139ssl_sock_generated_cert_key(const void *data, size_t len)
Christopher Faulet30548802015-06-11 13:39:32 +02002140{
2141 return XXH32(data, len, ssl_ctx_lru_seed);
2142}
2143
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002144/* Generate a cert and immediately assign it to the SSL session so that the cert's
2145 * refcount is maintained regardless of the cert's presence in the LRU cache.
2146 */
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002147static int
Christopher Faulet7969a332015-10-09 11:15:03 +02002148ssl_sock_generate_certificate(const char *servername, struct bind_conf *bind_conf, SSL *ssl)
Christopher Faulet31af49d2015-06-09 17:29:50 +02002149{
Shimi Gersner5846c492020-08-23 13:58:12 +03002150 X509 *cacert = bind_conf->ca_sign_ckch->cert;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002151 SSL_CTX *ssl_ctx = NULL;
2152 struct lru64 *lru = NULL;
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002153 unsigned int key;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002154
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002155 key = ssl_sock_generated_cert_key(servername, strlen(servername));
Christopher Faulet31af49d2015-06-09 17:29:50 +02002156 if (ssl_ctx_lru_tree) {
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002157 HA_RWLOCK_WRLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002158 lru = lru64_get(key, ssl_ctx_lru_tree, cacert, 0);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002159 if (lru && lru->domain)
2160 ssl_ctx = (SSL_CTX *)lru->data;
Christopher Fauletd2cab922015-07-28 16:03:47 +02002161 if (!ssl_ctx && lru) {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002162 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002163 lru64_commit(lru, ssl_ctx, cacert, 0, (void (*)(void *))SSL_CTX_free);
Christopher Fauletd2cab922015-07-28 16:03:47 +02002164 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002165 SSL_set_SSL_CTX(ssl, ssl_ctx);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002166 HA_RWLOCK_WRUNLOCK(SSL_GEN_CERTS_LOCK, &ssl_ctx_lru_rwlock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002167 return 1;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002168 }
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002169 else {
Christopher Faulet635c0ad2015-11-12 11:35:51 +01002170 ssl_ctx = ssl_sock_do_create_cert(servername, bind_conf, ssl);
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002171 SSL_set_SSL_CTX(ssl, ssl_ctx);
2172 /* No LRU cache, this CTX will be released as soon as the session dies */
2173 SSL_CTX_free(ssl_ctx);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002174 return 1;
Willy Tarreau2f63ef42015-10-20 15:16:01 +02002175 }
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002176 return 0;
2177}
2178static int
2179ssl_sock_generate_certificate_from_conn(struct bind_conf *bind_conf, SSL *ssl)
2180{
2181 unsigned int key;
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002182 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002183
Willy Tarreauf5bdb642019-07-17 11:29:32 +02002184 if (conn_get_dst(conn)) {
Willy Tarreau085a1512019-07-17 14:47:35 +02002185 key = ssl_sock_generated_cert_key(conn->dst, get_addr_len(conn->dst));
Emeric Brun821bb9b2017-06-15 16:37:39 +02002186 if (ssl_sock_assign_generated_cert(key, bind_conf, ssl))
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002187 return 1;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002188 }
2189 return 0;
Christopher Faulet31af49d2015-06-09 17:29:50 +02002190}
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002191#endif /* !defined SSL_NO_GENERATE_CERTIFICATES */
Christopher Faulet31af49d2015-06-09 17:29:50 +02002192
Willy Tarreau9a1ab082019-05-09 13:26:41 +02002193#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002194
2195static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002196{
Emmanuel Hocdet23877ab2017-07-12 12:53:02 +02002197#if SSL_OP_NO_SSLv3
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002198 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, SSLv3_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002199 : SSL_CTX_set_ssl_version(ctx, SSLv3_client_method());
2200#endif
2201}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002202static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2203 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002204 : SSL_CTX_set_ssl_version(ctx, TLSv1_client_method());
2205}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002206static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002207#if SSL_OP_NO_TLSv1_1
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002208 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_1_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002209 : SSL_CTX_set_ssl_version(ctx, TLSv1_1_client_method());
2210#endif
2211}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002212static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002213#if SSL_OP_NO_TLSv1_2
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002214 c == SET_SERVER ? SSL_CTX_set_ssl_version(ctx, TLSv1_2_server_method())
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002215 : SSL_CTX_set_ssl_version(ctx, TLSv1_2_client_method());
2216#endif
2217}
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002218/* TLSv1.2 is the last supported version in this context. */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002219static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {}
2220/* Unusable in this context. */
2221static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {}
2222static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {}
2223static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {}
2224static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {}
2225static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {}
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002226#else /* openssl >= 1.1.0 */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002227
2228static void ctx_set_SSLv3_func(SSL_CTX *ctx, set_context_func c) {
2229 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, SSL3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002230 : SSL_CTX_set_min_proto_version(ctx, SSL3_VERSION);
2231}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002232static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {
2233 c == SET_MAX ? SSL_set_max_proto_version(ssl, SSL3_VERSION)
2234 : SSL_set_min_proto_version(ssl, SSL3_VERSION);
2235}
2236static void ctx_set_TLSv10_func(SSL_CTX *ctx, set_context_func c) {
2237 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002238 : SSL_CTX_set_min_proto_version(ctx, TLS1_VERSION);
2239}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002240static void ssl_set_TLSv10_func(SSL *ssl, set_context_func c) {
2241 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_VERSION)
2242 : SSL_set_min_proto_version(ssl, TLS1_VERSION);
2243}
2244static void ctx_set_TLSv11_func(SSL_CTX *ctx, set_context_func c) {
2245 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_1_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002246 : SSL_CTX_set_min_proto_version(ctx, TLS1_1_VERSION);
2247}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002248static void ssl_set_TLSv11_func(SSL *ssl, set_context_func c) {
2249 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_1_VERSION)
2250 : SSL_set_min_proto_version(ssl, TLS1_1_VERSION);
2251}
2252static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
2253 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002254 : SSL_CTX_set_min_proto_version(ctx, TLS1_2_VERSION);
2255}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002256static void ssl_set_TLSv12_func(SSL *ssl, set_context_func c) {
2257 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_2_VERSION)
2258 : SSL_set_min_proto_version(ssl, TLS1_2_VERSION);
2259}
2260static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002261#if SSL_OP_NO_TLSv1_3
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002262 c == SET_MAX ? SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION)
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002263 : SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION);
2264#endif
2265}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002266static void ssl_set_TLSv13_func(SSL *ssl, set_context_func c) {
2267#if SSL_OP_NO_TLSv1_3
2268 c == SET_MAX ? SSL_set_max_proto_version(ssl, TLS1_3_VERSION)
2269 : SSL_set_min_proto_version(ssl, TLS1_3_VERSION);
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002270#endif
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002271}
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002272#endif
2273static void ctx_set_None_func(SSL_CTX *ctx, set_context_func c) { }
2274static void ssl_set_None_func(SSL *ssl, set_context_func c) { }
Emmanuel Hocdetecb0e232017-05-18 11:56:58 +02002275
William Lallemand7fd8b452020-05-07 15:20:43 +02002276struct methodVersions methodVersions[] = {
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02002277 {0, 0, ctx_set_None_func, ssl_set_None_func, "NONE"}, /* CONF_TLSV_NONE */
2278 {SSL_OP_NO_SSLv3, MC_SSL_O_NO_SSLV3, ctx_set_SSLv3_func, ssl_set_SSLv3_func, "SSLv3"}, /* CONF_SSLV3 */
2279 {SSL_OP_NO_TLSv1, MC_SSL_O_NO_TLSV10, ctx_set_TLSv10_func, ssl_set_TLSv10_func, "TLSv1.0"}, /* CONF_TLSV10 */
2280 {SSL_OP_NO_TLSv1_1, MC_SSL_O_NO_TLSV11, ctx_set_TLSv11_func, ssl_set_TLSv11_func, "TLSv1.1"}, /* CONF_TLSV11 */
2281 {SSL_OP_NO_TLSv1_2, MC_SSL_O_NO_TLSV12, ctx_set_TLSv12_func, ssl_set_TLSv12_func, "TLSv1.2"}, /* CONF_TLSV12 */
2282 {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 +02002283};
2284
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002285static void ssl_sock_switchctx_set(SSL *ssl, SSL_CTX *ctx)
2286{
2287 SSL_set_verify(ssl, SSL_CTX_get_verify_mode(ctx), ssl_sock_bind_verifycbk);
2288 SSL_set_client_CA_list(ssl, SSL_dup_CA_list(SSL_CTX_get_client_CA_list(ctx)));
2289 SSL_set_SSL_CTX(ssl, ctx);
2290}
2291
Willy Tarreau5db847a2019-05-09 14:13:35 +02002292#if ((HA_OPENSSL_VERSION_NUMBER >= 0x10101000L) || defined(OPENSSL_IS_BORINGSSL))
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002293
2294static int ssl_sock_switchctx_err_cbk(SSL *ssl, int *al, void *priv)
2295{
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002296 struct bind_conf *s = priv;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002297 (void)al; /* shut gcc stupid warning */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002298
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002299 if (SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name) || s->generate_certs)
2300 return SSL_TLSEXT_ERR_OK;
2301 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002302}
2303
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002304#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002305static int ssl_sock_switchctx_cbk(const struct ssl_early_callback_ctx *ctx)
2306{
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002307 SSL *ssl = ctx->ssl;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002308#else
2309static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *arg)
2310{
2311#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002312 struct connection *conn;
2313 struct bind_conf *s;
2314 const uint8_t *extension_data;
2315 size_t extension_len;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002316 int has_rsa_sig = 0, has_ecdsa_sig = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002317
2318 char *wildp = NULL;
2319 const uint8_t *servername;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002320 size_t servername_len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002321 struct ebmb_node *node, *n, *node_ecdsa = NULL, *node_rsa = NULL, *node_anonymous = NULL;
Olivier Houchardc2aae742017-09-22 18:26:28 +02002322 int allow_early = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002323 int i;
2324
Thierry FOURNIER28962c92018-06-17 21:37:05 +02002325 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Willy Tarreaua8825522018-10-15 13:20:07 +02002326 s = __objt_listener(conn->target)->bind_conf;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002327
Olivier Houchard9679ac92017-10-27 14:58:08 +02002328 if (s->ssl_conf.early_data)
Olivier Houchardc2aae742017-09-22 18:26:28 +02002329 allow_early = 1;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002330#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002331 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_server_name,
2332 &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002333#else
2334 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_server_name, &extension_data, &extension_len)) {
2335#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002336 /*
2337 * The server_name extension was given too much extensibility when it
2338 * was written, so parsing the normal case is a bit complex.
2339 */
2340 size_t len;
2341 if (extension_len <= 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002342 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002343 /* Extract the length of the supplied list of names. */
2344 len = (*extension_data++) << 8;
2345 len |= *extension_data++;
2346 if (len + 2 != extension_len)
2347 goto abort;
2348 /*
2349 * The list in practice only has a single element, so we only consider
2350 * the first one.
2351 */
2352 if (len == 0 || *extension_data++ != TLSEXT_NAMETYPE_host_name)
2353 goto abort;
2354 extension_len = len - 1;
2355 /* Now we can finally pull out the byte array with the actual hostname. */
2356 if (extension_len <= 2)
2357 goto abort;
2358 len = (*extension_data++) << 8;
2359 len |= *extension_data++;
2360 if (len == 0 || len + 2 > extension_len || len > TLSEXT_MAXLEN_host_name
2361 || memchr(extension_data, 0, len) != NULL)
2362 goto abort;
2363 servername = extension_data;
2364 servername_len = len;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002365 } else {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002366#if (!defined SSL_NO_GENERATE_CERTIFICATES)
2367 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02002368 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002369 }
2370#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002371 /* without SNI extension, is the default_ctx (need SSL_TLSEXT_ERR_NOACK) */
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002372 if (!s->strict_sni) {
William Lallemand21724f02019-11-04 17:56:13 +01002373 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002374 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002375 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Olivier Houchardc2aae742017-09-22 18:26:28 +02002376 goto allow_early;
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002377 }
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002378 goto abort;
2379 }
2380
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05002381 /* extract/check clientHello information */
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002382#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002383 if (SSL_early_callback_ctx_extension_get(ctx, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002384#else
2385 if (SSL_client_hello_get0_ext(ssl, TLSEXT_TYPE_signature_algorithms, &extension_data, &extension_len)) {
2386#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002387 uint8_t sign;
2388 size_t len;
2389 if (extension_len < 2)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002390 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002391 len = (*extension_data++) << 8;
2392 len |= *extension_data++;
2393 if (len + 2 != extension_len)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002394 goto abort;
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002395 if (len % 2 != 0)
2396 goto abort;
2397 for (; len > 0; len -= 2) {
2398 extension_data++; /* hash */
2399 sign = *extension_data++;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002400 switch (sign) {
2401 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002402 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002403 break;
2404 case TLSEXT_signature_ecdsa:
2405 has_ecdsa_sig = 1;
2406 break;
2407 default:
2408 continue;
2409 }
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002410 if (has_ecdsa_sig && has_rsa_sig)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002411 break;
2412 }
2413 } else {
Bertrand Jacquina25282b2018-08-14 00:56:13 +01002414 /* without TLSEXT_TYPE_signature_algorithms extension (< TLSv1.2) */
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002415 has_rsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002416 }
2417 if (has_ecdsa_sig) { /* in very rare case: has ecdsa sign but not a ECDSA cipher */
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002418 const SSL_CIPHER *cipher;
2419 size_t len;
2420 const uint8_t *cipher_suites;
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002421 has_ecdsa_sig = 0;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002422#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002423 len = ctx->cipher_suites_len;
2424 cipher_suites = ctx->cipher_suites;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002425#else
2426 len = SSL_client_hello_get0_ciphers(ssl, &cipher_suites);
2427#endif
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002428 if (len % 2 != 0)
2429 goto abort;
2430 for (; len != 0; len -= 2, cipher_suites += 2) {
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002431#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002432 uint16_t cipher_suite = (cipher_suites[0] << 8) | cipher_suites[1];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002433 cipher = SSL_get_cipher_by_value(cipher_suite);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002434#else
2435 cipher = SSL_CIPHER_find(ssl, cipher_suites);
2436#endif
Emmanuel Hocdet019f9b12017-10-02 17:12:06 +02002437 if (cipher && SSL_CIPHER_get_auth_nid(cipher) == NID_auth_ecdsa) {
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002438 has_ecdsa_sig = 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002439 break;
2440 }
2441 }
2442 }
2443
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002444 for (i = 0; i < trash.size && i < servername_len; i++) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002445 trash.area[i] = tolower(servername[i]);
2446 if (!wildp && (trash.area[i] == '.'))
2447 wildp = &trash.area[i];
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002448 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002449 trash.area[i] = 0;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002450
William Lallemand150bfa82019-09-19 17:12:49 +02002451 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002452
William Lallemand94bd3192020-08-14 14:43:35 +02002453 /* Look for an ECDSA, RSA and DSA certificate, first in the single
2454 * name and if not found in the wildcard */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002455 for (i = 0; i < 2; i++) {
2456 if (i == 0) /* lookup in full qualified names */
2457 node = ebst_lookup(&s->sni_ctx, trash.area);
William Lallemand30f9e092020-08-17 14:31:19 +02002458 else if (i == 1 && wildp) /* lookup in wildcards names */
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002459 node = ebst_lookup(&s->sni_w_ctx, wildp);
2460 else
2461 break;
William Lallemand30f9e092020-08-17 14:31:19 +02002462
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002463 for (n = node; n; n = ebmb_next_dup(n)) {
William Lallemand30f9e092020-08-17 14:31:19 +02002464
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002465 /* lookup a not neg filter */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002466 if (!container_of(n, struct sni_ctx, name)->neg) {
William Lallemand30f9e092020-08-17 14:31:19 +02002467 struct sni_ctx *sni, *sni_tmp;
2468 int skip = 0;
2469
2470 if (i == 1 && wildp) { /* wildcard */
2471 /* If this is a wildcard, look for an exclusion on the same crt-list line */
2472 sni = container_of(n, struct sni_ctx, name);
2473 list_for_each_entry(sni_tmp, &sni->ckch_inst->sni_ctx, by_ckch_inst) {
2474 if (sni_tmp->neg && (!strcmp((const char *)sni_tmp->name.key, trash.area))) {
2475 skip = 1;
2476 break;
2477 }
2478 }
2479 if (skip)
2480 continue;
2481 }
2482
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002483 switch(container_of(n, struct sni_ctx, name)->kinfo.sig) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002484 case TLSEXT_signature_ecdsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002485 if (!node_ecdsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002486 node_ecdsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002487 break;
2488 case TLSEXT_signature_rsa:
Emmanuel Hocdet9f9b0c62018-09-03 16:29:16 +02002489 if (!node_rsa)
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002490 node_rsa = n;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002491 break;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002492 default: /* TLSEXT_signature_anonymous|dsa */
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002493 if (!node_anonymous)
2494 node_anonymous = n;
2495 break;
2496 }
2497 }
2498 }
William Lallemand94bd3192020-08-14 14:43:35 +02002499 }
2500 /* Once the certificates are found, select them depending on what is
2501 * supported in the client and by key_signature priority order: EDSA >
2502 * RSA > DSA */
William Lallemand5b1d1f62020-08-14 15:30:13 +02002503 if (has_ecdsa_sig && node_ecdsa)
2504 node = node_ecdsa;
2505 else if (has_rsa_sig && node_rsa)
2506 node = node_rsa;
2507 else if (node_anonymous)
2508 node = node_anonymous;
2509 else if (node_ecdsa)
2510 node = node_ecdsa; /* no ecdsa signature case (< TLSv1.2) */
2511 else
2512 node = node_rsa; /* no rsa signature case (far far away) */
2513
William Lallemand94bd3192020-08-14 14:43:35 +02002514 if (node) {
2515 /* switch ctx */
2516 struct ssl_bind_conf *conf = container_of(node, struct sni_ctx, name)->conf;
2517 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
2518 if (conf) {
2519 methodVersions[conf->ssl_methods.min].ssl_set_version(ssl, SET_MIN);
2520 methodVersions[conf->ssl_methods.max].ssl_set_version(ssl, SET_MAX);
2521 if (conf->early_data)
2522 allow_early = 1;
Emmanuel Hocdet3777e3a2019-11-06 16:05:34 +01002523 }
William Lallemand94bd3192020-08-14 14:43:35 +02002524 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
2525 goto allow_early;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002526 }
William Lallemand150bfa82019-09-19 17:12:49 +02002527
William Lallemand02010472019-10-18 11:02:19 +02002528 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002529#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002530 if (s->generate_certs && ssl_sock_generate_certificate(trash.area, s, ssl)) {
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002531 /* switch ctx done in ssl_sock_generate_certificate */
Olivier Houchardc2aae742017-09-22 18:26:28 +02002532 goto allow_early;
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002533 }
2534#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002535 if (!s->strict_sni) {
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002536 /* no certificate match, is the default_ctx */
William Lallemand21724f02019-11-04 17:56:13 +01002537 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002538 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002539 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002540 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02002541allow_early:
2542#ifdef OPENSSL_IS_BORINGSSL
2543 if (allow_early)
2544 SSL_set_early_data_enabled(ssl, 1);
2545#else
2546 if (!allow_early)
2547 SSL_set_max_early_data(ssl, 0);
2548#endif
2549 return 1;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002550 abort:
2551 /* abort handshake (was SSL_TLSEXT_ERR_ALERT_FATAL) */
2552 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002553#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet48e87552017-08-16 11:28:44 +02002554 return ssl_select_cert_error;
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02002555#else
2556 *al = SSL_AD_UNRECOGNIZED_NAME;
2557 return 0;
2558#endif
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002559}
2560
2561#else /* OPENSSL_IS_BORINGSSL */
2562
Emeric Brunfc0421f2012-09-07 17:30:07 +02002563/* Sets the SSL ctx of <ssl> to match the advertised server name. Returns a
2564 * warning when no match is found, which implies the default (first) cert
2565 * will keep being used.
2566 */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002567static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *priv)
Emeric Brunfc0421f2012-09-07 17:30:07 +02002568{
2569 const char *servername;
2570 const char *wildp = NULL;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002571 struct ebmb_node *node, *n;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002572 struct bind_conf *s = priv;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002573 int i;
2574 (void)al; /* shut gcc stupid warning */
2575
2576 servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002577 if (!servername) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002578#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002579 if (s->generate_certs && ssl_sock_generate_certificate_from_conn(s, ssl))
2580 return SSL_TLSEXT_ERR_OK;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002581#endif
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002582 if (s->strict_sni)
2583 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002584 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002585 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002586 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002587 return SSL_TLSEXT_ERR_NOACK;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002588 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02002589
Willy Tarreau19d14ef2012-10-29 16:51:55 +01002590 for (i = 0; i < trash.size; i++) {
Emeric Brunfc0421f2012-09-07 17:30:07 +02002591 if (!servername[i])
2592 break;
Willy Tarreauf278eec2020-07-05 21:46:32 +02002593 trash.area[i] = tolower((unsigned char)servername[i]);
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002594 if (!wildp && (trash.area[i] == '.'))
2595 wildp = &trash.area[i];
Emeric Brunfc0421f2012-09-07 17:30:07 +02002596 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002597 trash.area[i] = 0;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002598
William Lallemand150bfa82019-09-19 17:12:49 +02002599 HA_RWLOCK_RDLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002600 node = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002601 /* lookup in full qualified names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002602 for (n = ebst_lookup(&s->sni_ctx, trash.area); n; n = ebmb_next_dup(n)) {
2603 /* lookup a not neg filter */
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002604 if (!container_of(n, struct sni_ctx, name)->neg) {
2605 node = n;
2606 break;
Emmanuel Hocdet65623372013-01-24 17:17:15 +01002607 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002608 }
2609 if (!node && wildp) {
2610 /* lookup in wildcards names */
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002611 for (n = ebst_lookup(&s->sni_w_ctx, wildp); n; n = ebmb_next_dup(n)) {
2612 /* lookup a not neg filter */
2613 if (!container_of(n, struct sni_ctx, name)->neg) {
2614 node = n;
2615 break;
2616 }
2617 }
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002618 }
Emmanuel Hocdetc5fdf0f2019-11-04 15:49:46 +01002619 if (!node) {
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002620#if (!defined SSL_NO_GENERATE_CERTIFICATES)
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02002621 if (s->generate_certs && ssl_sock_generate_certificate(servername, s, ssl)) {
2622 /* switch ctx done in ssl_sock_generate_certificate */
William Lallemand150bfa82019-09-19 17:12:49 +02002623 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Christopher Faulet31af49d2015-06-09 17:29:50 +02002624 return SSL_TLSEXT_ERR_OK;
2625 }
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01002626#endif
William Lallemand21724f02019-11-04 17:56:13 +01002627 if (s->strict_sni) {
2628 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002629 return SSL_TLSEXT_ERR_ALERT_FATAL;
William Lallemand21724f02019-11-04 17:56:13 +01002630 }
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002631 ssl_sock_switchctx_set(ssl, s->default_ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002632 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01002633 return SSL_TLSEXT_ERR_OK;
Emeric Brunfc0421f2012-09-07 17:30:07 +02002634 }
2635
2636 /* switch ctx */
Emmanuel Hocdet530141f2017-03-01 18:54:56 +01002637 ssl_sock_switchctx_set(ssl, container_of(node, struct sni_ctx, name)->ctx);
William Lallemand150bfa82019-09-19 17:12:49 +02002638 HA_RWLOCK_RDUNLOCK(SNI_LOCK, &s->sni_lock);
Emeric Brunfc0421f2012-09-07 17:30:07 +02002639 return SSL_TLSEXT_ERR_OK;
2640}
Emmanuel Hocdet05942112017-02-20 16:11:50 +01002641#endif /* (!) OPENSSL_IS_BORINGSSL */
Emeric Brunfc0421f2012-09-07 17:30:07 +02002642#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
2643
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002644#ifndef OPENSSL_NO_DH
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002645
2646static DH * ssl_get_dh_1024(void)
2647{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002648 static unsigned char dh1024_p[]={
2649 0xFA,0xF9,0x2A,0x22,0x2A,0xA7,0x7F,0xE1,0x67,0x4E,0x53,0xF7,
2650 0x56,0x13,0xC3,0xB1,0xE3,0x29,0x6B,0x66,0x31,0x6A,0x7F,0xB3,
2651 0xC2,0x68,0x6B,0xCB,0x1D,0x57,0x39,0x1D,0x1F,0xFF,0x1C,0xC9,
2652 0xA6,0xA4,0x98,0x82,0x31,0x5D,0x25,0xFF,0x8A,0xE0,0x73,0x96,
2653 0x81,0xC8,0x83,0x79,0xC1,0x5A,0x04,0xF8,0x37,0x0D,0xA8,0x3D,
2654 0xAE,0x74,0xBC,0xDB,0xB6,0xA4,0x75,0xD9,0x71,0x8A,0xA0,0x17,
2655 0x9E,0x2D,0xC8,0xA8,0xDF,0x2C,0x5F,0x82,0x95,0xF8,0x92,0x9B,
2656 0xA7,0x33,0x5F,0x89,0x71,0xC8,0x2D,0x6B,0x18,0x86,0xC4,0x94,
2657 0x22,0xA5,0x52,0x8D,0xF6,0xF6,0xD2,0x37,0x92,0x0F,0xA5,0xCC,
2658 0xDB,0x7B,0x1D,0x3D,0xA1,0x31,0xB7,0x80,0x8F,0x0B,0x67,0x5E,
2659 0x36,0xA5,0x60,0x0C,0xF1,0x95,0x33,0x8B,
2660 };
2661 static unsigned char dh1024_g[]={
2662 0x02,
2663 };
2664
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002665 BIGNUM *p;
2666 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002667 DH *dh = DH_new();
2668 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002669 p = BN_bin2bn(dh1024_p, sizeof dh1024_p, NULL);
2670 g = BN_bin2bn(dh1024_g, sizeof dh1024_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002671
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002672 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002673 DH_free(dh);
2674 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002675 } else {
2676 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002677 }
2678 }
2679 return dh;
2680}
2681
2682static DH *ssl_get_dh_2048(void)
2683{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002684 static unsigned char dh2048_p[]={
2685 0xEC,0x86,0xF8,0x70,0xA0,0x33,0x16,0xEC,0x05,0x1A,0x73,0x59,
2686 0xCD,0x1F,0x8B,0xF8,0x29,0xE4,0xD2,0xCF,0x52,0xDD,0xC2,0x24,
2687 0x8D,0xB5,0x38,0x9A,0xFB,0x5C,0xA4,0xE4,0xB2,0xDA,0xCE,0x66,
2688 0x50,0x74,0xA6,0x85,0x4D,0x4B,0x1D,0x30,0xB8,0x2B,0xF3,0x10,
2689 0xE9,0xA7,0x2D,0x05,0x71,0xE7,0x81,0xDF,0x8B,0x59,0x52,0x3B,
2690 0x5F,0x43,0x0B,0x68,0xF1,0xDB,0x07,0xBE,0x08,0x6B,0x1B,0x23,
2691 0xEE,0x4D,0xCC,0x9E,0x0E,0x43,0xA0,0x1E,0xDF,0x43,0x8C,0xEC,
2692 0xBE,0xBE,0x90,0xB4,0x51,0x54,0xB9,0x2F,0x7B,0x64,0x76,0x4E,
2693 0x5D,0xD4,0x2E,0xAE,0xC2,0x9E,0xAE,0x51,0x43,0x59,0xC7,0x77,
2694 0x9C,0x50,0x3C,0x0E,0xED,0x73,0x04,0x5F,0xF1,0x4C,0x76,0x2A,
2695 0xD8,0xF8,0xCF,0xFC,0x34,0x40,0xD1,0xB4,0x42,0x61,0x84,0x66,
2696 0x42,0x39,0x04,0xF8,0x68,0xB2,0x62,0xD7,0x55,0xED,0x1B,0x74,
2697 0x75,0x91,0xE0,0xC5,0x69,0xC1,0x31,0x5C,0xDB,0x7B,0x44,0x2E,
2698 0xCE,0x84,0x58,0x0D,0x1E,0x66,0x0C,0xC8,0x44,0x9E,0xFD,0x40,
2699 0x08,0x67,0x5D,0xFB,0xA7,0x76,0x8F,0x00,0x11,0x87,0xE9,0x93,
2700 0xF9,0x7D,0xC4,0xBC,0x74,0x55,0x20,0xD4,0x4A,0x41,0x2F,0x43,
2701 0x42,0x1A,0xC1,0xF2,0x97,0x17,0x49,0x27,0x37,0x6B,0x2F,0x88,
2702 0x7E,0x1C,0xA0,0xA1,0x89,0x92,0x27,0xD9,0x56,0x5A,0x71,0xC1,
2703 0x56,0x37,0x7E,0x3A,0x9D,0x05,0xE7,0xEE,0x5D,0x8F,0x82,0x17,
2704 0xBC,0xE9,0xC2,0x93,0x30,0x82,0xF9,0xF4,0xC9,0xAE,0x49,0xDB,
2705 0xD0,0x54,0xB4,0xD9,0x75,0x4D,0xFA,0x06,0xB8,0xD6,0x38,0x41,
2706 0xB7,0x1F,0x77,0xF3,
2707 };
2708 static unsigned char dh2048_g[]={
2709 0x02,
2710 };
2711
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002712 BIGNUM *p;
2713 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002714 DH *dh = DH_new();
2715 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002716 p = BN_bin2bn(dh2048_p, sizeof dh2048_p, NULL);
2717 g = BN_bin2bn(dh2048_g, sizeof dh2048_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002718
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002719 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002720 DH_free(dh);
2721 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002722 } else {
2723 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002724 }
2725 }
2726 return dh;
2727}
2728
2729static DH *ssl_get_dh_4096(void)
2730{
Remi Gacogned3a341a2015-05-29 16:26:17 +02002731 static unsigned char dh4096_p[]={
2732 0xDE,0x16,0x94,0xCD,0x99,0x58,0x07,0xF1,0xF7,0x32,0x96,0x11,
2733 0x04,0x82,0xD4,0x84,0x72,0x80,0x99,0x06,0xCA,0xF0,0xA3,0x68,
2734 0x07,0xCE,0x64,0x50,0xE7,0x74,0x45,0x20,0x80,0x5E,0x4D,0xAD,
2735 0xA5,0xB6,0xED,0xFA,0x80,0x6C,0x3B,0x35,0xC4,0x9A,0x14,0x6B,
2736 0x32,0xBB,0xFD,0x1F,0x17,0x8E,0xB7,0x1F,0xD6,0xFA,0x3F,0x7B,
2737 0xEE,0x16,0xA5,0x62,0x33,0x0D,0xED,0xBC,0x4E,0x58,0xE5,0x47,
2738 0x4D,0xE9,0xAB,0x8E,0x38,0xD3,0x6E,0x90,0x57,0xE3,0x22,0x15,
2739 0x33,0xBD,0xF6,0x43,0x45,0xB5,0x10,0x0A,0xBE,0x2C,0xB4,0x35,
2740 0xB8,0x53,0x8D,0xAD,0xFB,0xA7,0x1F,0x85,0x58,0x41,0x7A,0x79,
2741 0x20,0x68,0xB3,0xE1,0x3D,0x08,0x76,0xBF,0x86,0x0D,0x49,0xE3,
2742 0x82,0x71,0x8C,0xB4,0x8D,0x81,0x84,0xD4,0xE7,0xBE,0x91,0xDC,
2743 0x26,0x39,0x48,0x0F,0x35,0xC4,0xCA,0x65,0xE3,0x40,0x93,0x52,
2744 0x76,0x58,0x7D,0xDD,0x51,0x75,0xDC,0x69,0x61,0xBF,0x47,0x2C,
2745 0x16,0x68,0x2D,0xC9,0x29,0xD3,0xE6,0xC0,0x99,0x48,0xA0,0x9A,
2746 0xC8,0x78,0xC0,0x6D,0x81,0x67,0x12,0x61,0x3F,0x71,0xBA,0x41,
2747 0x1F,0x6C,0x89,0x44,0x03,0xBA,0x3B,0x39,0x60,0xAA,0x28,0x55,
2748 0x59,0xAE,0xB8,0xFA,0xCB,0x6F,0xA5,0x1A,0xF7,0x2B,0xDD,0x52,
2749 0x8A,0x8B,0xE2,0x71,0xA6,0x5E,0x7E,0xD8,0x2E,0x18,0xE0,0x66,
2750 0xDF,0xDD,0x22,0x21,0x99,0x52,0x73,0xA6,0x33,0x20,0x65,0x0E,
2751 0x53,0xE7,0x6B,0x9B,0xC5,0xA3,0x2F,0x97,0x65,0x76,0xD3,0x47,
2752 0x23,0x77,0x12,0xB6,0x11,0x7B,0x24,0xED,0xF1,0xEF,0xC0,0xE2,
2753 0xA3,0x7E,0x67,0x05,0x3E,0x96,0x4D,0x45,0xC2,0x18,0xD1,0x73,
2754 0x9E,0x07,0xF3,0x81,0x6E,0x52,0x63,0xF6,0x20,0x76,0xB9,0x13,
2755 0xD2,0x65,0x30,0x18,0x16,0x09,0x16,0x9E,0x8F,0xF1,0xD2,0x10,
2756 0x5A,0xD3,0xD4,0xAF,0x16,0x61,0xDA,0x55,0x2E,0x18,0x5E,0x14,
2757 0x08,0x54,0x2E,0x2A,0x25,0xA2,0x1A,0x9B,0x8B,0x32,0xA9,0xFD,
2758 0xC2,0x48,0x96,0xE1,0x80,0xCA,0xE9,0x22,0x17,0xBB,0xCE,0x3E,
2759 0x9E,0xED,0xC7,0xF1,0x1F,0xEC,0x17,0x21,0xDC,0x7B,0x82,0x48,
2760 0x8E,0xBB,0x4B,0x9D,0x5B,0x04,0x04,0xDA,0xDB,0x39,0xDF,0x01,
2761 0x40,0xC3,0xAA,0x26,0x23,0x89,0x75,0xC6,0x0B,0xD0,0xA2,0x60,
2762 0x6A,0xF1,0xCC,0x65,0x18,0x98,0x1B,0x52,0xD2,0x74,0x61,0xCC,
2763 0xBD,0x60,0xAE,0xA3,0xA0,0x66,0x6A,0x16,0x34,0x92,0x3F,0x41,
2764 0x40,0x31,0x29,0xC0,0x2C,0x63,0xB2,0x07,0x8D,0xEB,0x94,0xB8,
2765 0xE8,0x47,0x92,0x52,0x93,0x6A,0x1B,0x7E,0x1A,0x61,0xB3,0x1B,
2766 0xF0,0xD6,0x72,0x9B,0xF1,0xB0,0xAF,0xBF,0x3E,0x65,0xEF,0x23,
2767 0x1D,0x6F,0xFF,0x70,0xCD,0x8A,0x4C,0x8A,0xA0,0x72,0x9D,0xBE,
2768 0xD4,0xBB,0x24,0x47,0x4A,0x68,0xB5,0xF5,0xC6,0xD5,0x7A,0xCD,
2769 0xCA,0x06,0x41,0x07,0xAD,0xC2,0x1E,0xE6,0x54,0xA7,0xAD,0x03,
2770 0xD9,0x12,0xC1,0x9C,0x13,0xB1,0xC9,0x0A,0x43,0x8E,0x1E,0x08,
2771 0xCE,0x50,0x82,0x73,0x5F,0xA7,0x55,0x1D,0xD9,0x59,0xAC,0xB5,
2772 0xEA,0x02,0x7F,0x6C,0x5B,0x74,0x96,0x98,0x67,0x24,0xA3,0x0F,
2773 0x15,0xFC,0xA9,0x7D,0x3E,0x67,0xD1,0x70,0xF8,0x97,0xF3,0x67,
2774 0xC5,0x8C,0x88,0x44,0x08,0x02,0xC7,0x2B,
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002775 };
Remi Gacogned3a341a2015-05-29 16:26:17 +02002776 static unsigned char dh4096_g[]={
2777 0x02,
2778 };
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002779
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002780 BIGNUM *p;
2781 BIGNUM *g;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002782 DH *dh = DH_new();
2783 if (dh) {
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002784 p = BN_bin2bn(dh4096_p, sizeof dh4096_p, NULL);
2785 g = BN_bin2bn(dh4096_g, sizeof dh4096_g, NULL);
Remi Gacogned3a341a2015-05-29 16:26:17 +02002786
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002787 if (!p || !g) {
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002788 DH_free(dh);
2789 dh = NULL;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002790 } else {
2791 DH_set0_pqg(dh, p, NULL, g);
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002792 }
2793 }
2794 return dh;
2795}
2796
2797/* Returns Diffie-Hellman parameters matching the private key length
Willy Tarreauef934602016-12-22 23:12:01 +01002798 but not exceeding global_ssl.default_dh_param */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002799static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen)
2800{
2801 DH *dh = NULL;
2802 EVP_PKEY *pkey = SSL_get_privatekey(ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02002803 int type;
2804
2805 type = pkey ? EVP_PKEY_base_id(pkey) : EVP_PKEY_NONE;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002806
2807 /* The keylen supplied by OpenSSL can only be 512 or 1024.
2808 See ssl3_send_server_key_exchange() in ssl/s3_srvr.c
2809 */
2810 if (type == EVP_PKEY_RSA || type == EVP_PKEY_DSA) {
2811 keylen = EVP_PKEY_bits(pkey);
2812 }
2813
Willy Tarreauef934602016-12-22 23:12:01 +01002814 if (keylen > global_ssl.default_dh_param) {
2815 keylen = global_ssl.default_dh_param;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002816 }
2817
Remi Gacogned3a341a2015-05-29 16:26:17 +02002818 if (keylen >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002819 dh = local_dh_4096;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002820 }
2821 else if (keylen >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02002822 dh = local_dh_2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002823 }
2824 else {
Remi Gacogne8de54152014-07-15 11:36:40 +02002825 dh = local_dh_1024;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02002826 }
2827
2828 return dh;
2829}
2830
Remi Gacogne47783ef2015-05-29 15:53:22 +02002831static DH * ssl_sock_get_dh_from_file(const char *filename)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002832{
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002833 DH *dh = NULL;
Remi Gacogne47783ef2015-05-29 15:53:22 +02002834 BIO *in = BIO_new(BIO_s_file());
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002835
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002836 if (in == NULL)
2837 goto end;
2838
Remi Gacogne47783ef2015-05-29 15:53:22 +02002839 if (BIO_read_filename(in, filename) <= 0)
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002840 goto end;
2841
Remi Gacogne47783ef2015-05-29 15:53:22 +02002842 dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
2843
2844end:
2845 if (in)
2846 BIO_free(in);
2847
Emeric Brune1b4ed42018-08-16 15:14:12 +02002848 ERR_clear_error();
2849
Remi Gacogne47783ef2015-05-29 15:53:22 +02002850 return dh;
2851}
2852
2853int ssl_sock_load_global_dh_param_from_file(const char *filename)
2854{
2855 global_dh = ssl_sock_get_dh_from_file(filename);
2856
2857 if (global_dh) {
2858 return 0;
2859 }
2860
2861 return -1;
2862}
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02002863#endif
2864
William Lallemand9117de92019-10-04 00:29:42 +02002865/* This function allocates a sni_ctx and adds it to the ckch_inst */
William Lallemand1d29c742019-10-04 00:53:29 +02002866static int ckch_inst_add_cert_sni(SSL_CTX *ctx, struct ckch_inst *ckch_inst,
William Lallemand9117de92019-10-04 00:29:42 +02002867 struct bind_conf *s, struct ssl_bind_conf *conf,
2868 struct pkey_info kinfo, char *name, int order)
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002869{
2870 struct sni_ctx *sc;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002871 int wild = 0, neg = 0;
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002872
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002873 if (*name == '!') {
2874 neg = 1;
2875 name++;
2876 }
2877 if (*name == '*') {
2878 wild = 1;
2879 name++;
2880 }
2881 /* !* filter is a nop */
2882 if (neg && wild)
2883 return order;
2884 if (*name) {
2885 int j, len;
2886 len = strlen(name);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002887 for (j = 0; j < len && j < trash.size; j++)
Willy Tarreauf278eec2020-07-05 21:46:32 +02002888 trash.area[j] = tolower((unsigned char)name[j]);
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002889 if (j >= trash.size)
William Lallemandfe49bb32019-10-03 23:46:33 +02002890 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002891 trash.area[j] = 0;
Thierry FOURNIER / OZON.IO07c3d782016-10-06 10:56:48 +02002892
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002893 sc = malloc(sizeof(struct sni_ctx) + len + 1);
Thierry FOURNIER / OZON.IO7a3bd3b2016-10-06 10:35:29 +02002894 if (!sc)
William Lallemandfe49bb32019-10-03 23:46:33 +02002895 return -1;
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002896 memcpy(sc->name.key, trash.area, len + 1);
William Lallemand02e19a52020-04-08 16:11:26 +02002897 SSL_CTX_up_ref(ctx);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002898 sc->ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01002899 sc->conf = conf;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02002900 sc->kinfo = kinfo;
Emmanuel Hocdet7c41a1b2013-05-07 20:20:06 +02002901 sc->order = order++;
2902 sc->neg = neg;
William Lallemand1d29c742019-10-04 00:53:29 +02002903 sc->wild = wild;
2904 sc->name.node.leaf_p = NULL;
William Lallemandcfca1422020-03-05 10:17:47 +01002905 sc->ckch_inst = ckch_inst;
William Lallemand1d29c742019-10-04 00:53:29 +02002906 LIST_ADDQ(&ckch_inst->sni_ctx, &sc->by_ckch_inst);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01002907 }
2908 return order;
2909}
2910
William Lallemand6af03992019-07-23 15:00:54 +02002911/*
William Lallemand1d29c742019-10-04 00:53:29 +02002912 * Insert the sni_ctxs that are listed in the ckch_inst, in the bind_conf's sni_ctx tree
2913 * This function can't return an error.
2914 *
2915 * *CAUTION*: The caller must lock the sni tree if called in multithreading mode
2916 */
William Lallemandc756bbd2020-05-13 17:23:59 +02002917void ssl_sock_load_cert_sni(struct ckch_inst *ckch_inst, struct bind_conf *bind_conf)
William Lallemand1d29c742019-10-04 00:53:29 +02002918{
2919
2920 struct sni_ctx *sc0, *sc0b, *sc1;
2921 struct ebmb_node *node;
William Lallemand21724f02019-11-04 17:56:13 +01002922 int def = 0;
William Lallemand1d29c742019-10-04 00:53:29 +02002923
2924 list_for_each_entry_safe(sc0, sc0b, &ckch_inst->sni_ctx, by_ckch_inst) {
2925
2926 /* ignore if sc0 was already inserted in a tree */
2927 if (sc0->name.node.leaf_p)
2928 continue;
2929
2930 /* Check for duplicates. */
2931 if (sc0->wild)
2932 node = ebst_lookup(&bind_conf->sni_w_ctx, (char *)sc0->name.key);
2933 else
2934 node = ebst_lookup(&bind_conf->sni_ctx, (char *)sc0->name.key);
2935
2936 for (; node; node = ebmb_next_dup(node)) {
2937 sc1 = ebmb_entry(node, struct sni_ctx, name);
2938 if (sc1->ctx == sc0->ctx && sc1->conf == sc0->conf
2939 && sc1->neg == sc0->neg && sc1->wild == sc0->wild) {
2940 /* it's a duplicate, we should remove and free it */
2941 LIST_DEL(&sc0->by_ckch_inst);
William Lallemand02e19a52020-04-08 16:11:26 +02002942 SSL_CTX_free(sc0->ctx);
William Lallemand1d29c742019-10-04 00:53:29 +02002943 free(sc0);
2944 sc0 = NULL;
William Lallemande15029b2019-10-14 10:46:58 +02002945 break;
William Lallemand1d29c742019-10-04 00:53:29 +02002946 }
2947 }
2948
2949 /* if duplicate, ignore the insertion */
2950 if (!sc0)
2951 continue;
2952
2953 if (sc0->wild)
2954 ebst_insert(&bind_conf->sni_w_ctx, &sc0->name);
2955 else
2956 ebst_insert(&bind_conf->sni_ctx, &sc0->name);
William Lallemand21724f02019-11-04 17:56:13 +01002957
2958 /* replace the default_ctx if required with the first ctx */
2959 if (ckch_inst->is_default && !def) {
William Lallemand02e19a52020-04-08 16:11:26 +02002960 SSL_CTX_free(bind_conf->default_ctx);
2961 SSL_CTX_up_ref(sc0->ctx);
William Lallemand21724f02019-11-04 17:56:13 +01002962 bind_conf->default_ctx = sc0->ctx;
2963 def = 1;
2964 }
William Lallemand1d29c742019-10-04 00:53:29 +02002965 }
2966}
2967
2968/*
William Lallemande3af8fb2019-10-08 11:36:53 +02002969 * tree used to store the ckchs ordered by filename/bundle name
William Lallemand6af03992019-07-23 15:00:54 +02002970 */
William Lallemande3af8fb2019-10-08 11:36:53 +02002971struct eb_root ckchs_tree = EB_ROOT_UNIQUE;
William Lallemand6af03992019-07-23 15:00:54 +02002972
William Lallemand2954c472020-03-06 21:54:13 +01002973/* tree of crtlist (crt-list/directory) */
William Lallemandc756bbd2020-05-13 17:23:59 +02002974struct eb_root crtlists_tree = EB_ROOT_UNIQUE;
William Lallemandfa892222019-07-23 16:06:08 +02002975
Emeric Brun7a883362019-10-17 13:27:40 +02002976/* Loads Diffie-Hellman parameter from a ckchs to an SSL_CTX.
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05002977 * If there is no DH parameter available in the ckchs, the global
Emeric Brun7a883362019-10-17 13:27:40 +02002978 * DH parameter is loaded into the SSL_CTX and if there is no
2979 * DH parameter available in ckchs nor in global, the default
2980 * DH parameters are applied on the SSL_CTX.
2981 * Returns a bitfield containing the flags:
2982 * ERR_FATAL in any fatal error case
2983 * ERR_ALERT if a reason of the error is availabine in err
2984 * ERR_WARN if a warning is available into err
2985 * The value 0 means there is no error nor warning and
2986 * the operation succeed.
2987 */
William Lallemandfa892222019-07-23 16:06:08 +02002988#ifndef OPENSSL_NO_DH
Emeric Brun7a883362019-10-17 13:27:40 +02002989static int ssl_sock_load_dh_params(SSL_CTX *ctx, const struct cert_key_and_chain *ckch,
2990 const char *path, char **err)
William Lallemandfa892222019-07-23 16:06:08 +02002991{
Emeric Brun7a883362019-10-17 13:27:40 +02002992 int ret = 0;
William Lallemandfa892222019-07-23 16:06:08 +02002993 DH *dh = NULL;
2994
William Lallemanda8c73742019-07-31 18:31:34 +02002995 if (ckch && ckch->dh) {
William Lallemandfa892222019-07-23 16:06:08 +02002996 dh = ckch->dh;
Emeric Bruna9363eb2019-10-17 14:53:03 +02002997 if (!SSL_CTX_set_tmp_dh(ctx, dh)) {
2998 memprintf(err, "%sunable to load the DH parameter specified in '%s'",
2999 err && *err ? *err : "", path);
3000#if defined(SSL_CTX_set_dh_auto)
3001 SSL_CTX_set_dh_auto(ctx, 1);
3002 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3003 err && *err ? *err : "");
3004#else
3005 memprintf(err, "%s, DH ciphers won't be available.\n",
3006 err && *err ? *err : "");
3007#endif
3008 ret |= ERR_WARN;
3009 goto end;
3010 }
William Lallemandfa892222019-07-23 16:06:08 +02003011
3012 if (ssl_dh_ptr_index >= 0) {
3013 /* store a pointer to the DH params to avoid complaining about
3014 ssl-default-dh-param not being set for this SSL_CTX */
3015 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, dh);
3016 }
3017 }
3018 else if (global_dh) {
Emeric Bruna9363eb2019-10-17 14:53:03 +02003019 if (!SSL_CTX_set_tmp_dh(ctx, global_dh)) {
3020 memprintf(err, "%sunable to use the global DH parameter for certificate '%s'",
3021 err && *err ? *err : "", path);
3022#if defined(SSL_CTX_set_dh_auto)
3023 SSL_CTX_set_dh_auto(ctx, 1);
3024 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3025 err && *err ? *err : "");
3026#else
3027 memprintf(err, "%s, DH ciphers won't be available.\n",
3028 err && *err ? *err : "");
3029#endif
3030 ret |= ERR_WARN;
3031 goto end;
3032 }
William Lallemandfa892222019-07-23 16:06:08 +02003033 }
3034 else {
3035 /* Clear openssl global errors stack */
3036 ERR_clear_error();
3037
Willy Tarreau6d27a922020-11-05 19:38:05 +01003038 if (global_ssl.default_dh_param && global_ssl.default_dh_param <= 1024) {
William Lallemandfa892222019-07-23 16:06:08 +02003039 /* we are limited to DH parameter of 1024 bits anyway */
3040 if (local_dh_1024 == NULL)
3041 local_dh_1024 = ssl_get_dh_1024();
3042
Emeric Brun7a883362019-10-17 13:27:40 +02003043 if (local_dh_1024 == NULL) {
3044 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3045 err && *err ? *err : "", path);
3046 ret |= ERR_ALERT | ERR_FATAL;
William Lallemandfa892222019-07-23 16:06:08 +02003047 goto end;
Emeric Brun7a883362019-10-17 13:27:40 +02003048 }
William Lallemandfa892222019-07-23 16:06:08 +02003049
Emeric Bruna9363eb2019-10-17 14:53:03 +02003050 if (!SSL_CTX_set_tmp_dh(ctx, local_dh_1024)) {
3051 memprintf(err, "%sunable to load default 1024 bits DH parameter for certificate '%s'.\n",
3052 err && *err ? *err : "", path);
3053#if defined(SSL_CTX_set_dh_auto)
3054 SSL_CTX_set_dh_auto(ctx, 1);
3055 memprintf(err, "%s, SSL library will use an automatically generated DH parameter.\n",
3056 err && *err ? *err : "");
3057#else
3058 memprintf(err, "%s, DH ciphers won't be available.\n",
3059 err && *err ? *err : "");
3060#endif
3061 ret |= ERR_WARN;
3062 goto end;
3063 }
William Lallemandfa892222019-07-23 16:06:08 +02003064 }
3065 else {
3066 SSL_CTX_set_tmp_dh_callback(ctx, ssl_get_tmp_dh);
3067 }
William Lallemand8d0f8932019-10-17 18:03:58 +02003068 }
3069
William Lallemandf9568fc2019-10-16 18:27:58 +02003070end:
William Lallemandf9568fc2019-10-16 18:27:58 +02003071 ERR_clear_error();
William Lallemandf9568fc2019-10-16 18:27:58 +02003072 return ret;
3073}
Emmanuel Hocdet54227d82019-07-30 17:04:01 +02003074#endif
William Lallemandfa892222019-07-23 16:06:08 +02003075
yanbzhu488a4d22015-12-01 15:16:07 -05003076/* Loads the info in ckch into ctx
Emeric Bruna96b5822019-10-17 13:25:14 +02003077 * Returns a bitfield containing the flags:
3078 * ERR_FATAL in any fatal error case
3079 * ERR_ALERT if the reason of the error is available in err
3080 * ERR_WARN if a warning is available into err
3081 * The value 0 means there is no error nor warning and
3082 * the operation succeed.
yanbzhu488a4d22015-12-01 15:16:07 -05003083 */
3084static int ssl_sock_put_ckch_into_ctx(const char *path, const struct cert_key_and_chain *ckch, SSL_CTX *ctx, char **err)
3085{
Emeric Bruna96b5822019-10-17 13:25:14 +02003086 int errcode = 0;
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003087 STACK_OF(X509) *find_chain = NULL;
Emeric Bruna96b5822019-10-17 13:25:14 +02003088
yanbzhu488a4d22015-12-01 15:16:07 -05003089 if (SSL_CTX_use_PrivateKey(ctx, ckch->key) <= 0) {
3090 memprintf(err, "%sunable to load SSL private key into SSL Context '%s'.\n",
3091 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003092 errcode |= ERR_ALERT | ERR_FATAL;
3093 return errcode;
yanbzhu488a4d22015-12-01 15:16:07 -05003094 }
3095
3096 if (!SSL_CTX_use_certificate(ctx, ckch->cert)) {
3097 memprintf(err, "%sunable to load SSL certificate into SSL Context '%s'.\n",
3098 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003099 errcode |= ERR_ALERT | ERR_FATAL;
3100 goto end;
yanbzhu488a4d22015-12-01 15:16:07 -05003101 }
3102
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003103 if (ckch->chain) {
3104 find_chain = ckch->chain;
3105 } else {
3106 /* Find Certificate Chain in global */
3107 struct issuer_chain *issuer;
Emmanuel Hocdetef87e0a2020-03-23 11:29:11 +01003108 issuer = ssl_get0_issuer_chain(ckch->cert);
Emmanuel Hocdetb90d2cb2020-02-18 15:27:32 +01003109 if (issuer)
3110 find_chain = issuer->chain;
3111 }
William Lallemand85888572020-02-27 14:48:35 +01003112
William Lallemand935d8292020-08-12 20:02:10 +02003113 if (!find_chain) {
3114 /* always put a null chain stack in the SSL_CTX so it does not
3115 * try to build the chain from the verify store */
3116 find_chain = sk_X509_new_null();
3117 }
3118
William Lallemandf187ce62020-06-02 18:27:20 +02003119 /* Load all certs in the ckch into the ctx_chain for the ssl_ctx */
William Lallemandf187ce62020-06-02 18:27:20 +02003120#ifdef SSL_CTX_set1_chain
William Lallemand935d8292020-08-12 20:02:10 +02003121 if (!SSL_CTX_set1_chain(ctx, find_chain)) {
3122 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'. Make sure you are linking against Openssl >= 1.0.2.\n",
3123 err && *err ? *err : "", path);
3124 errcode |= ERR_ALERT | ERR_FATAL;
3125 goto end;
3126 }
William Lallemandf187ce62020-06-02 18:27:20 +02003127#else
3128 { /* legacy compat (< openssl 1.0.2) */
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003129 X509 *ca;
William Lallemandf187ce62020-06-02 18:27:20 +02003130 STACK_OF(X509) *chain;
3131 chain = X509_chain_up_ref(find_chain);
3132 while ((ca = sk_X509_shift(chain)))
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003133 if (!SSL_CTX_add_extra_chain_cert(ctx, ca)) {
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003134 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3135 err && *err ? *err : "", path);
William Lallemandf187ce62020-06-02 18:27:20 +02003136 X509_free(ca);
3137 sk_X509_pop_free(chain, X509_free);
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003138 errcode |= ERR_ALERT | ERR_FATAL;
3139 goto end;
3140 }
Emmanuel Hocdet4fed93e2020-02-28 16:00:34 +01003141 }
William Lallemandf187ce62020-06-02 18:27:20 +02003142#endif
yanbzhu488a4d22015-12-01 15:16:07 -05003143
William Lallemand9a1d8392020-08-10 17:28:23 +02003144#ifdef SSL_CTX_build_cert_chain
William Lallemandbf298af2020-08-10 16:18:45 +02003145 /* remove the Root CA from the SSL_CTX if the option is activated */
3146 if (global_ssl.skip_self_issued_ca) {
3147 if (!SSL_CTX_build_cert_chain(ctx, SSL_BUILD_CHAIN_FLAG_NO_ROOT|SSL_BUILD_CHAIN_FLAG_UNTRUSTED|SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR)) {
3148 memprintf(err, "%sunable to load chain certificate into SSL Context '%s'.\n",
3149 err && *err ? *err : "", path);
3150 errcode |= ERR_ALERT | ERR_FATAL;
3151 goto end;
3152 }
3153 }
William Lallemand9a1d8392020-08-10 17:28:23 +02003154#endif
William Lallemandbf298af2020-08-10 16:18:45 +02003155
William Lallemandfa892222019-07-23 16:06:08 +02003156#ifndef OPENSSL_NO_DH
3157 /* store a NULL pointer to indicate we have not yet loaded
3158 a custom DH param file */
3159 if (ssl_dh_ptr_index >= 0) {
3160 SSL_CTX_set_ex_data(ctx, ssl_dh_ptr_index, NULL);
3161 }
3162
Emeric Brun7a883362019-10-17 13:27:40 +02003163 errcode |= ssl_sock_load_dh_params(ctx, ckch, path, err);
3164 if (errcode & ERR_CODE) {
William Lallemandfa892222019-07-23 16:06:08 +02003165 memprintf(err, "%sunable to load DH parameters from file '%s'.\n",
3166 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003167 goto end;
William Lallemandfa892222019-07-23 16:06:08 +02003168 }
3169#endif
3170
William Lallemanda17f4112019-10-10 15:16:44 +02003171#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
3172 if (sctl_ex_index >= 0 && ckch->sctl) {
3173 if (ssl_sock_load_sctl(ctx, ckch->sctl) < 0) {
3174 memprintf(err, "%s '%s.sctl' is present but cannot be read or parsed'.\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01003175 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003176 errcode |= ERR_ALERT | ERR_FATAL;
3177 goto end;
William Lallemanda17f4112019-10-10 15:16:44 +02003178 }
3179 }
3180#endif
3181
Emmanuel Hocdeta73a2222020-10-26 13:55:30 +01003182#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
William Lallemand246c0242019-10-11 08:59:13 +02003183 /* Load OCSP Info into context */
3184 if (ckch->ocsp_response) {
Emmanuel Hocdet6f507c72020-02-18 15:56:39 +01003185 if (ssl_sock_load_ocsp(ctx, ckch, find_chain) < 0) {
Tim Duesterhus93128532019-11-23 23:45:10 +01003186 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",
3187 err && *err ? *err : "", path);
Emeric Bruna96b5822019-10-17 13:25:14 +02003188 errcode |= ERR_ALERT | ERR_FATAL;
3189 goto end;
William Lallemand246c0242019-10-11 08:59:13 +02003190 }
3191 }
William Lallemand246c0242019-10-11 08:59:13 +02003192#endif
3193
Emeric Bruna96b5822019-10-17 13:25:14 +02003194 end:
3195 return errcode;
yanbzhu488a4d22015-12-01 15:16:07 -05003196}
3197
William Lallemand614ca0d2019-10-07 13:52:11 +02003198/*
3199 * This function allocate a ckch_inst and create its snis
Emeric Brun054563d2019-10-17 13:16:58 +02003200 *
3201 * Returns a bitfield containing the flags:
3202 * ERR_FATAL in any fatal error case
3203 * ERR_ALERT if the reason of the error is available in err
3204 * ERR_WARN if a warning is available into err
William Lallemand614ca0d2019-10-07 13:52:11 +02003205 */
William Lallemandc756bbd2020-05-13 17:23:59 +02003206int ckch_inst_new_load_store(const char *path, struct ckch_store *ckchs, struct bind_conf *bind_conf,
Emeric Brun054563d2019-10-17 13:16:58 +02003207 struct ssl_bind_conf *ssl_conf, char **sni_filter, int fcount, struct ckch_inst **ckchi, char **err)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003208{
William Lallemandc9402072019-05-15 15:33:54 +02003209 SSL_CTX *ctx;
William Lallemandc9402072019-05-15 15:33:54 +02003210 int i;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003211 int order = 0;
3212 X509_NAME *xname;
3213 char *str;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003214 EVP_PKEY *pkey;
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003215 struct pkey_info kinfo = { .sig = TLSEXT_signature_anonymous, .bits = 0 };
Emeric Brunfc0421f2012-09-07 17:30:07 +02003216#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3217 STACK_OF(GENERAL_NAME) *names;
3218#endif
William Lallemand36b84632019-07-18 19:28:17 +02003219 struct cert_key_and_chain *ckch;
William Lallemand614ca0d2019-10-07 13:52:11 +02003220 struct ckch_inst *ckch_inst = NULL;
Emeric Brun054563d2019-10-17 13:16:58 +02003221 int errcode = 0;
3222
3223 *ckchi = NULL;
William Lallemanda59191b2019-05-15 16:08:56 +02003224
William Lallemande3af8fb2019-10-08 11:36:53 +02003225 if (!ckchs || !ckchs->ckch)
Emeric Brun054563d2019-10-17 13:16:58 +02003226 return ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003227
William Lallemande3af8fb2019-10-08 11:36:53 +02003228 ckch = ckchs->ckch;
William Lallemand36b84632019-07-18 19:28:17 +02003229
William Lallemandc9402072019-05-15 15:33:54 +02003230 ctx = SSL_CTX_new(SSLv23_server_method());
3231 if (!ctx) {
3232 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3233 err && *err ? *err : "", path);
Emeric Brun054563d2019-10-17 13:16:58 +02003234 errcode |= ERR_ALERT | ERR_FATAL;
3235 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003236 }
3237
Emeric Bruna96b5822019-10-17 13:25:14 +02003238 errcode |= ssl_sock_put_ckch_into_ctx(path, ckch, ctx, err);
3239 if (errcode & ERR_CODE)
William Lallemand614ca0d2019-10-07 13:52:11 +02003240 goto error;
William Lallemand614ca0d2019-10-07 13:52:11 +02003241
3242 ckch_inst = ckch_inst_new();
3243 if (!ckch_inst) {
3244 memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
3245 err && *err ? *err : "", path);
Emeric Brun054563d2019-10-17 13:16:58 +02003246 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003247 goto error;
William Lallemandc9402072019-05-15 15:33:54 +02003248 }
3249
William Lallemand36b84632019-07-18 19:28:17 +02003250 pkey = X509_get_pubkey(ckch->cert);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003251 if (pkey) {
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003252 kinfo.bits = EVP_PKEY_bits(pkey);
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003253 switch(EVP_PKEY_base_id(pkey)) {
3254 case EVP_PKEY_RSA:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003255 kinfo.sig = TLSEXT_signature_rsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003256 break;
3257 case EVP_PKEY_EC:
Emmanuel Hocdetddc090b2017-10-27 18:43:29 +02003258 kinfo.sig = TLSEXT_signature_ecdsa;
3259 break;
3260 case EVP_PKEY_DSA:
3261 kinfo.sig = TLSEXT_signature_dsa;
Emmanuel Hocdet05942112017-02-20 16:11:50 +01003262 break;
3263 }
3264 EVP_PKEY_free(pkey);
3265 }
3266
Emeric Brun50bcecc2013-04-22 13:05:23 +02003267 if (fcount) {
William Lallemandfe49bb32019-10-03 23:46:33 +02003268 while (fcount--) {
William Lallemand1d29c742019-10-04 00:53:29 +02003269 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 +02003270 if (order < 0) {
3271 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003272 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003273 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003274 }
3275 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003276 }
3277 else {
Emeric Brunfc0421f2012-09-07 17:30:07 +02003278#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
William Lallemand36b84632019-07-18 19:28:17 +02003279 names = X509_get_ext_d2i(ckch->cert, NID_subject_alt_name, NULL, NULL);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003280 if (names) {
3281 for (i = 0; i < sk_GENERAL_NAME_num(names); i++) {
3282 GENERAL_NAME *name = sk_GENERAL_NAME_value(names, i);
3283 if (name->type == GEN_DNS) {
3284 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003285 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003286 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003287 if (order < 0) {
3288 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003289 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003290 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003291 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003292 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003293 }
3294 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003295 sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
Emeric Brunfc0421f2012-09-07 17:30:07 +02003296 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003297#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
William Lallemand36b84632019-07-18 19:28:17 +02003298 xname = X509_get_subject_name(ckch->cert);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003299 i = -1;
3300 while ((i = X509_NAME_get_index_by_NID(xname, NID_commonName, i)) != -1) {
3301 X509_NAME_ENTRY *entry = X509_NAME_get_entry(xname, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02003302 ASN1_STRING *value;
3303
3304 value = X509_NAME_ENTRY_get_data(entry);
3305 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
William Lallemand1d29c742019-10-04 00:53:29 +02003306 order = ckch_inst_add_cert_sni(ctx, ckch_inst, bind_conf, ssl_conf, kinfo, str, order);
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003307 OPENSSL_free(str);
William Lallemandfe49bb32019-10-03 23:46:33 +02003308 if (order < 0) {
3309 memprintf(err, "%sunable to create a sni context.\n", err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003310 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003311 goto error;
William Lallemandfe49bb32019-10-03 23:46:33 +02003312 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003313 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003314 }
3315 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003316 /* we must not free the SSL_CTX anymore below, since it's already in
3317 * the tree, so it will be discovered and cleaned in time.
3318 */
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003319
Emeric Brunfc0421f2012-09-07 17:30:07 +02003320#ifndef SSL_CTRL_SET_TLSEXT_HOSTNAME
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003321 if (bind_conf->default_ctx) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +02003322 memprintf(err, "%sthis version of openssl cannot load multiple SSL certificates.\n",
3323 err && *err ? *err : "");
Emeric Brun054563d2019-10-17 13:16:58 +02003324 errcode |= ERR_ALERT | ERR_FATAL;
William Lallemandd9199372019-10-04 15:37:05 +02003325 goto error;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003326 }
3327#endif
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003328 if (!bind_conf->default_ctx) {
Willy Tarreau2a65ff02012-09-13 17:54:29 +02003329 bind_conf->default_ctx = ctx;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003330 bind_conf->default_ssl_conf = ssl_conf;
William Lallemand21724f02019-11-04 17:56:13 +01003331 ckch_inst->is_default = 1;
William Lallemand02e19a52020-04-08 16:11:26 +02003332 SSL_CTX_up_ref(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01003333 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02003334
William Lallemand9117de92019-10-04 00:29:42 +02003335 /* everything succeed, the ckch instance can be used */
3336 ckch_inst->bind_conf = bind_conf;
William Lallemand150bfa82019-09-19 17:12:49 +02003337 ckch_inst->ssl_conf = ssl_conf;
William Lallemandcfca1422020-03-05 10:17:47 +01003338 ckch_inst->ckch_store = ckchs;
William Lallemand9117de92019-10-04 00:29:42 +02003339
William Lallemand02e19a52020-04-08 16:11:26 +02003340 SSL_CTX_free(ctx); /* we need to free the ctx since we incremented the refcount where it's used */
3341
Emeric Brun054563d2019-10-17 13:16:58 +02003342 *ckchi = ckch_inst;
3343 return errcode;
William Lallemandd9199372019-10-04 15:37:05 +02003344
3345error:
3346 /* free the allocated sni_ctxs */
William Lallemand614ca0d2019-10-07 13:52:11 +02003347 if (ckch_inst) {
William Lallemand02e19a52020-04-08 16:11:26 +02003348 if (ckch_inst->is_default)
3349 SSL_CTX_free(ctx);
3350
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003351 ckch_inst_free(ckch_inst);
William Lallemand614ca0d2019-10-07 13:52:11 +02003352 ckch_inst = NULL;
William Lallemandd9199372019-10-04 15:37:05 +02003353 }
William Lallemandd9199372019-10-04 15:37:05 +02003354 SSL_CTX_free(ctx);
3355
Emeric Brun054563d2019-10-17 13:16:58 +02003356 return errcode;
Emeric Brunfc0421f2012-09-07 17:30:07 +02003357}
3358
Willy Tarreau8c5414a2019-10-16 17:06:25 +02003359/* Returns a set of ERR_* flags possibly with an error in <err>. */
William Lallemand614ca0d2019-10-07 13:52:11 +02003360static int ssl_sock_load_ckchs(const char *path, struct ckch_store *ckchs,
3361 struct bind_conf *bind_conf, struct ssl_bind_conf *ssl_conf,
William Lallemand24bde432020-03-09 16:48:43 +01003362 char **sni_filter, int fcount, struct ckch_inst **ckch_inst, char **err)
William Lallemand614ca0d2019-10-07 13:52:11 +02003363{
Emeric Brun054563d2019-10-17 13:16:58 +02003364 int errcode = 0;
William Lallemand614ca0d2019-10-07 13:52:11 +02003365
3366 /* we found the ckchs in the tree, we can use it directly */
William Lallemande7eb1fe2020-09-16 16:17:51 +02003367 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 +02003368
Emeric Brun054563d2019-10-17 13:16:58 +02003369 if (errcode & ERR_CODE)
3370 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003371
William Lallemand24bde432020-03-09 16:48:43 +01003372 ssl_sock_load_cert_sni(*ckch_inst, bind_conf);
William Lallemand614ca0d2019-10-07 13:52:11 +02003373
3374 /* succeed, add the instance to the ckch_store's list of instance */
William Lallemand24bde432020-03-09 16:48:43 +01003375 LIST_ADDQ(&ckchs->ckch_inst, &((*ckch_inst)->by_ckchs));
Emeric Brun054563d2019-10-17 13:16:58 +02003376 return errcode;
William Lallemand614ca0d2019-10-07 13:52:11 +02003377}
3378
William Lallemand6be66ec2020-03-06 22:26:32 +01003379
William Lallemand4c68bba2020-03-30 18:45:10 +02003380
3381
3382/* Make sure openssl opens /dev/urandom before the chroot. The work is only
3383 * done once. Zero is returned if the operation fails. No error is returned
3384 * if the random is said as not implemented, because we expect that openssl
3385 * will use another method once needed.
3386 */
3387static int ssl_initialize_random()
3388{
3389 unsigned char random;
3390 static int random_initialized = 0;
3391
3392 if (!random_initialized && RAND_bytes(&random, 1) != 0)
3393 random_initialized = 1;
3394
3395 return random_initialized;
3396}
3397
William Lallemand2954c472020-03-06 21:54:13 +01003398/* Load a crt-list file, this is done in 2 parts:
3399 * - store the content of the file in a crtlist structure with crtlist_entry structures
3400 * - generate the instances by iterating on entries in the crtlist struct
3401 *
3402 * Nothing is locked there, this function is used in the configuration parser.
3403 *
3404 * Returns a set of ERR_* flags possibly with an error in <err>.
3405 */
William Lallemand6be66ec2020-03-06 22:26:32 +01003406int 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 +01003407{
3408 struct crtlist *crtlist = NULL;
3409 struct ebmb_node *eb;
William Lallemand49398312020-03-30 17:01:33 +02003410 struct crtlist_entry *entry = NULL;
William Lallemand79d31ec2020-03-25 15:10:49 +01003411 struct bind_conf_list *bind_conf_node = NULL;
William Lallemand2954c472020-03-06 21:54:13 +01003412 int cfgerr = 0;
William Lallemand41ca9302020-04-08 13:15:18 +02003413 char *end;
William Lallemand2954c472020-03-06 21:54:13 +01003414
William Lallemand79d31ec2020-03-25 15:10:49 +01003415 bind_conf_node = malloc(sizeof(*bind_conf_node));
3416 if (!bind_conf_node) {
3417 memprintf(err, "%sCan't alloc memory!\n", err && *err ? *err : "");
3418 cfgerr |= ERR_FATAL | ERR_ALERT;
3419 goto error;
3420 }
3421 bind_conf_node->next = NULL;
3422 bind_conf_node->bind_conf = bind_conf;
3423
William Lallemand41ca9302020-04-08 13:15:18 +02003424 /* strip trailing slashes, including first one */
3425 for (end = file + strlen(file) - 1; end >= file && *end == '/'; end--)
3426 *end = 0;
3427
William Lallemand2954c472020-03-06 21:54:13 +01003428 /* look for an existing crtlist or create one */
3429 eb = ebst_lookup(&crtlists_tree, file);
3430 if (eb) {
3431 crtlist = ebmb_entry(eb, struct crtlist, node);
3432 } else {
William Lallemand6be66ec2020-03-06 22:26:32 +01003433 /* load a crt-list OR a directory */
3434 if (dir)
3435 cfgerr |= crtlist_load_cert_dir(file, bind_conf, &crtlist, err);
3436 else
3437 cfgerr |= crtlist_parse_file(file, bind_conf, curproxy, &crtlist, err);
3438
William Lallemand2954c472020-03-06 21:54:13 +01003439 if (!(cfgerr & ERR_CODE))
3440 ebst_insert(&crtlists_tree, &crtlist->node);
3441 }
3442
3443 if (cfgerr & ERR_CODE) {
3444 cfgerr |= ERR_FATAL | ERR_ALERT;
3445 goto error;
3446 }
3447
3448 /* generates ckch instance from the crtlist_entry */
3449 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3450 struct ckch_store *store;
3451 struct ckch_inst *ckch_inst = NULL;
3452
3453 store = entry->node.key;
3454 cfgerr |= ssl_sock_load_ckchs(store->path, store, bind_conf, entry->ssl_conf, entry->filters, entry->fcount, &ckch_inst, err);
3455 if (cfgerr & ERR_CODE) {
3456 memprintf(err, "error processing line %d in file '%s' : %s", entry->linenum, file, *err);
3457 goto error;
3458 }
William Lallemand49398312020-03-30 17:01:33 +02003459 LIST_ADDQ(&entry->ckch_inst, &ckch_inst->by_crtlist_entry);
William Lallemandcaa16192020-04-08 16:29:15 +02003460 ckch_inst->crtlist_entry = entry;
William Lallemand2954c472020-03-06 21:54:13 +01003461 }
William Lallemand2954c472020-03-06 21:54:13 +01003462
William Lallemand79d31ec2020-03-25 15:10:49 +01003463 /* add the bind_conf to the list */
3464 bind_conf_node->next = crtlist->bind_conf;
3465 crtlist->bind_conf = bind_conf_node;
3466
William Lallemand2954c472020-03-06 21:54:13 +01003467 return cfgerr;
3468error:
3469 {
William Lallemand49398312020-03-30 17:01:33 +02003470 struct crtlist_entry *lastentry;
William Lallemand2954c472020-03-06 21:54:13 +01003471 struct ckch_inst *inst, *s_inst;
3472
William Lallemand49398312020-03-30 17:01:33 +02003473 lastentry = entry; /* which entry we tried to generate last */
3474 if (lastentry) {
3475 list_for_each_entry(entry, &crtlist->ord_entries, by_crtlist) {
3476 if (entry == lastentry) /* last entry we tried to generate, no need to go further */
3477 break;
3478
3479 list_for_each_entry_safe(inst, s_inst, &entry->ckch_inst, by_crtlist_entry) {
William Lallemand2954c472020-03-06 21:54:13 +01003480
William Lallemand49398312020-03-30 17:01:33 +02003481 /* this was not generated for this bind_conf, skip */
3482 if (inst->bind_conf != bind_conf)
3483 continue;
3484
William Lallemandd9d5d1b2020-04-09 16:31:05 +02003485 /* free the sni_ctx and instance */
3486 ckch_inst_free(inst);
William Lallemand49398312020-03-30 17:01:33 +02003487 }
William Lallemand2954c472020-03-06 21:54:13 +01003488 }
William Lallemand2954c472020-03-06 21:54:13 +01003489 }
William Lallemand79d31ec2020-03-25 15:10:49 +01003490 free(bind_conf_node);
William Lallemand2954c472020-03-06 21:54:13 +01003491 }
Emmanuel Hocdetfe616562013-01-22 15:31:15 +01003492 return cfgerr;
3493}
3494
William Lallemand06b22a82020-03-16 14:45:55 +01003495/* Returns a set of ERR_* flags possibly with an error in <err>. */
3496int ssl_sock_load_cert(char *path, struct bind_conf *bind_conf, char **err)
3497{
3498 struct stat buf;
William Lallemand06b22a82020-03-16 14:45:55 +01003499 int cfgerr = 0;
3500 struct ckch_store *ckchs;
William Lallemand24bde432020-03-09 16:48:43 +01003501 struct ckch_inst *ckch_inst = NULL;
William Lallemand06ce84a2020-11-20 15:36:13 +01003502 int found = 0; /* did we found a file to load ? */
William Lallemand06b22a82020-03-16 14:45:55 +01003503
3504 if ((ckchs = ckchs_lookup(path))) {
3505 /* we found the ckchs in the tree, we can use it directly */
William Lallemand06ce84a2020-11-20 15:36:13 +01003506 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3507 found++;
3508 } else if (stat(path, &buf) == 0) {
3509 found++;
William Lallemand06b22a82020-03-16 14:45:55 +01003510 if (S_ISDIR(buf.st_mode) == 0) {
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003511 ckchs = ckchs_load_cert_file(path, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003512 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003513 cfgerr |= ERR_ALERT | ERR_FATAL;
3514 cfgerr |= ssl_sock_load_ckchs(path, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003515 } else {
William Lallemand06ce84a2020-11-20 15:36:13 +01003516 cfgerr |= ssl_sock_load_cert_list_file(path, 1, bind_conf, bind_conf->frontend, err);
William Lallemand06b22a82020-03-16 14:45:55 +01003517 }
3518 } else {
3519 /* stat failed, could be a bundle */
3520 if (global_ssl.extra_files & SSL_GF_BUNDLE) {
William Lallemanddfa93be2020-09-16 14:48:52 +02003521 char fp[MAXPATHLEN+1] = {0};
3522 int n = 0;
3523
3524 /* Load all possible certs and keys in separate ckch_store */
3525 for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
3526 struct stat buf;
3527 int ret;
3528
3529 ret = snprintf(fp, sizeof(fp), "%s.%s", path, SSL_SOCK_KEYTYPE_NAMES[n]);
3530 if (ret > sizeof(fp))
3531 continue;
3532
3533 if ((ckchs = ckchs_lookup(fp))) {
3534 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
William Lallemand06ce84a2020-11-20 15:36:13 +01003535 found++;
William Lallemanddfa93be2020-09-16 14:48:52 +02003536 } else {
3537 if (stat(fp, &buf) == 0) {
William Lallemand06ce84a2020-11-20 15:36:13 +01003538 found++;
William Lallemandbd8e6ed2020-09-16 16:08:08 +02003539 ckchs = ckchs_load_cert_file(fp, err);
William Lallemanddfa93be2020-09-16 14:48:52 +02003540 if (!ckchs)
William Lallemand06ce84a2020-11-20 15:36:13 +01003541 cfgerr |= ERR_ALERT | ERR_FATAL;
William Lallemanddfa93be2020-09-16 14:48:52 +02003542 cfgerr |= ssl_sock_load_ckchs(fp, ckchs, bind_conf, NULL, NULL, 0, &ckch_inst, err);
3543 }
3544 }
3545 }
William Lallemand06ce84a2020-11-20 15:36:13 +01003546
William Lallemand06b22a82020-03-16 14:45:55 +01003547 }
3548 }
William Lallemand06ce84a2020-11-20 15:36:13 +01003549 if (!found) {
3550 memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
3551 err && *err ? *err : "", path, strerror(errno));
3552 cfgerr |= ERR_ALERT | ERR_FATAL;
3553 }
William Lallemand06b22a82020-03-16 14:45:55 +01003554
3555 return cfgerr;
3556}
3557
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003558/* Create an initial CTX used to start the SSL connection before switchctx */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003559static int
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003560ssl_sock_initial_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02003561{
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003562 SSL_CTX *ctx = NULL;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003563 long options =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003564 SSL_OP_ALL | /* all known workarounds for bugs */
3565 SSL_OP_NO_SSLv2 |
3566 SSL_OP_NO_COMPRESSION |
Emeric Bruna4bcd9a2012-09-20 16:19:02 +02003567 SSL_OP_SINGLE_DH_USE |
Emeric Brun2b58d042012-09-20 17:10:03 +02003568 SSL_OP_SINGLE_ECDH_USE |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003569 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION |
Lukas Tribus926594f2018-05-18 17:55:57 +02003570 SSL_OP_PRIORITIZE_CHACHA |
Emeric Brun3c4bc6e2012-10-04 18:44:19 +02003571 SSL_OP_CIPHER_SERVER_PREFERENCE;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003572 long mode =
Emeric Brunfc0421f2012-09-07 17:30:07 +02003573 SSL_MODE_ENABLE_PARTIAL_WRITE |
3574 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
Willy Tarreau396a1862014-11-13 14:06:52 +01003575 SSL_MODE_RELEASE_BUFFERS |
3576 SSL_MODE_SMALL_BUFFERS;
Emmanuel Hocdet43664762017-08-09 18:26:20 +02003577 struct tls_version_filter *conf_ssl_methods = &bind_conf->ssl_conf.ssl_methods;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003578 int i, min, max, hole;
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003579 int flags = MC_SSL_O_ALL;
3580 int cfgerr = 0;
William Lallemand50df1cb2020-06-02 10:52:24 +02003581 const int default_min_ver = CONF_TLSV12;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003582
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003583 ctx = SSL_CTX_new(SSLv23_server_method());
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003584 bind_conf->initial_ctx = ctx;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003585
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003586 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01003587 ha_warning("Proxy '%s': no-sslv3/no-tlsv1x are ignored for bind '%s' at [%s:%d]. "
3588 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3589 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003590 else
3591 flags = conf_ssl_methods->flags;
3592
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003593 min = conf_ssl_methods->min;
3594 max = conf_ssl_methods->max;
William Lallemand50df1cb2020-06-02 10:52:24 +02003595
3596 /* default minimum is TLSV12, */
3597 if (!min) {
3598 if (!max || (max >= default_min_ver)) {
3599 min = default_min_ver;
3600 } else {
3601 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). "
3602 "Setting the ssl-min-ver to %s. Use 'ssl-min-ver' to fix this.\n",
3603 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line, methodVersions[default_min_ver].name, methodVersions[max].name);
3604 min = max;
3605 }
3606 }
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003607 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdetbd695fe2017-05-15 15:53:41 +02003608 if (min)
3609 flags |= (methodVersions[min].flag - 1);
3610 if (max)
3611 flags |= ~((methodVersions[max].flag << 1) - 1);
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003612 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003613 min = max = CONF_TLSV_NONE;
3614 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003615 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003616 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003617 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003618 if (min) {
3619 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003620 ha_warning("Proxy '%s': SSL/TLS versions range not contiguous for bind '%s' at [%s:%d]. "
3621 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
3622 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line,
3623 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003624 hole = 0;
3625 }
3626 max = i;
3627 }
3628 else {
3629 min = max = i;
3630 }
3631 }
3632 else {
3633 if (min)
3634 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003635 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003636 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003637 ha_alert("Proxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
3638 bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003639 cfgerr += 1;
3640 }
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02003641 /* save real min/max in bind_conf */
3642 conf_ssl_methods->min = min;
3643 conf_ssl_methods->max = max;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003644
Willy Tarreau9a1ab082019-05-09 13:26:41 +02003645#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003646 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08003647 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003648 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003649 methodVersions[min].ctx_set_version(ctx, SET_SERVER);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003650 else
William Lallemandd0712f32020-06-11 17:34:00 +02003651 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++) {
3652 /* clear every version flags in case SSL_CTX_new()
3653 * returns an SSL_CTX with disabled versions */
3654 SSL_CTX_clear_options(ctx, methodVersions[i].option);
3655
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003656 if (flags & methodVersions[i].flag)
3657 options |= methodVersions[i].option;
William Lallemandd0712f32020-06-11 17:34:00 +02003658
3659 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003660#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02003661 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02003662 methodVersions[min].ctx_set_version(ctx, SET_MIN);
3663 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emeric Brunfa5c5c82017-04-28 16:19:51 +02003664#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003665
3666 if (bind_conf->ssl_options & BC_SSL_O_NO_TLS_TICKETS)
3667 options |= SSL_OP_NO_TICKET;
3668 if (bind_conf->ssl_options & BC_SSL_O_PREF_CLIE_CIPH)
3669 options &= ~SSL_OP_CIPHER_SERVER_PREFERENCE;
Dirkjan Bussink526894f2019-01-21 09:35:03 -08003670
3671#ifdef SSL_OP_NO_RENEGOTIATION
3672 options |= SSL_OP_NO_RENEGOTIATION;
3673#endif
3674
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003675 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003676
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05003677#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00003678 if (global_ssl.async)
3679 mode |= SSL_MODE_ASYNC;
3680#endif
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02003681 SSL_CTX_set_mode(ctx, mode);
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003682 if (global_ssl.life_time)
3683 SSL_CTX_set_timeout(ctx, global_ssl.life_time);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003684
3685#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
3686#ifdef OPENSSL_IS_BORINGSSL
3687 SSL_CTX_set_select_certificate_cb(ctx, ssl_sock_switchctx_cbk);
3688 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Ilya Shipitsine9ff8992020-01-19 12:20:14 +05003689#elif defined(SSL_OP_NO_ANTI_REPLAY)
Olivier Houchard545989f2019-12-17 15:39:54 +01003690 if (bind_conf->ssl_conf.early_data)
Olivier Houchard51088ce2019-01-02 18:46:41 +01003691 SSL_CTX_set_options(ctx, SSL_OP_NO_ANTI_REPLAY);
Emmanuel Hocdet84e417d2017-08-16 11:33:17 +02003692 SSL_CTX_set_client_hello_cb(ctx, ssl_sock_switchctx_cbk, NULL);
3693 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003694#else
3695 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_cbk);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003696#endif
Emmanuel Hocdet253c62b2017-08-14 11:01:25 +02003697 SSL_CTX_set_tlsext_servername_arg(ctx, bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01003698#endif
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02003699 return cfgerr;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01003700}
3701
William Lallemand4f45bb92017-10-30 20:08:51 +01003702
3703static inline void sh_ssl_sess_free_blocks(struct shared_block *first, struct shared_block *block)
3704{
3705 if (first == block) {
3706 struct sh_ssl_sess_hdr *sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3707 if (first->len > 0)
3708 sh_ssl_sess_tree_delete(sh_ssl_sess);
3709 }
3710}
3711
3712/* return first block from sh_ssl_sess */
3713static inline struct shared_block *sh_ssl_sess_first_block(struct sh_ssl_sess_hdr *sh_ssl_sess)
3714{
3715 return (struct shared_block *)((unsigned char *)sh_ssl_sess - ((struct shared_block *)NULL)->data);
3716
3717}
3718
3719/* store a session into the cache
3720 * s_id : session id padded with zero to SSL_MAX_SSL_SESSION_ID_LENGTH
3721 * data: asn1 encoded session
3722 * data_len: asn1 encoded session length
3723 * Returns 1 id session was stored (else 0)
3724 */
3725static int sh_ssl_sess_store(unsigned char *s_id, unsigned char *data, int data_len)
3726{
3727 struct shared_block *first;
3728 struct sh_ssl_sess_hdr *sh_ssl_sess, *oldsh_ssl_sess;
3729
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02003730 first = shctx_row_reserve_hot(ssl_shctx, NULL, data_len + sizeof(struct sh_ssl_sess_hdr));
William Lallemand4f45bb92017-10-30 20:08:51 +01003731 if (!first) {
3732 /* Could not retrieve enough free blocks to store that session */
3733 return 0;
3734 }
3735
3736 /* STORE the key in the first elem */
3737 sh_ssl_sess = (struct sh_ssl_sess_hdr *)first->data;
3738 memcpy(sh_ssl_sess->key_data, s_id, SSL_MAX_SSL_SESSION_ID_LENGTH);
3739 first->len = sizeof(struct sh_ssl_sess_hdr);
3740
3741 /* it returns the already existing node
3742 or current node if none, never returns null */
3743 oldsh_ssl_sess = sh_ssl_sess_tree_insert(sh_ssl_sess);
3744 if (oldsh_ssl_sess != sh_ssl_sess) {
3745 /* NOTE: Row couldn't be in use because we lock read & write function */
3746 /* release the reserved row */
3747 shctx_row_dec_hot(ssl_shctx, first);
3748 /* replace the previous session already in the tree */
3749 sh_ssl_sess = oldsh_ssl_sess;
3750 /* ignore the previous session data, only use the header */
3751 first = sh_ssl_sess_first_block(sh_ssl_sess);
3752 shctx_row_inc_hot(ssl_shctx, first);
3753 first->len = sizeof(struct sh_ssl_sess_hdr);
3754 }
3755
Frédéric Lécaille0bec8072018-10-22 17:55:57 +02003756 if (shctx_row_data_append(ssl_shctx, first, NULL, data, data_len) < 0) {
William Lallemand99b90af2018-01-03 19:15:51 +01003757 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01003758 return 0;
William Lallemand99b90af2018-01-03 19:15:51 +01003759 }
3760
3761 shctx_row_dec_hot(ssl_shctx, first);
William Lallemand4f45bb92017-10-30 20:08:51 +01003762
3763 return 1;
3764}
William Lallemanded0b5ad2017-10-30 19:36:36 +01003765
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003766/* SSL callback used when a new session is created while connecting to a server */
3767static int ssl_sess_new_srv_cb(SSL *ssl, SSL_SESSION *sess)
3768{
Thierry FOURNIER28962c92018-06-17 21:37:05 +02003769 struct connection *conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houcharde6060c52017-11-16 17:42:52 +01003770 struct server *s;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003771
Willy Tarreau07d94e42018-09-20 10:57:52 +02003772 s = __objt_server(conn->target);
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003773
Olivier Houcharde6060c52017-11-16 17:42:52 +01003774 if (!(s->ssl_ctx.options & SRV_SSL_O_NO_REUSE)) {
3775 int len;
3776 unsigned char *ptr;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003777
Olivier Houcharde6060c52017-11-16 17:42:52 +01003778 len = i2d_SSL_SESSION(sess, NULL);
3779 if (s->ssl_ctx.reused_sess[tid].ptr && s->ssl_ctx.reused_sess[tid].allocated_size >= len) {
3780 ptr = s->ssl_ctx.reused_sess[tid].ptr;
3781 } else {
3782 free(s->ssl_ctx.reused_sess[tid].ptr);
3783 ptr = s->ssl_ctx.reused_sess[tid].ptr = malloc(len);
3784 s->ssl_ctx.reused_sess[tid].allocated_size = len;
3785 }
3786 if (s->ssl_ctx.reused_sess[tid].ptr) {
3787 s->ssl_ctx.reused_sess[tid].size = i2d_SSL_SESSION(sess,
3788 &ptr);
3789 }
3790 } else {
3791 free(s->ssl_ctx.reused_sess[tid].ptr);
3792 s->ssl_ctx.reused_sess[tid].ptr = NULL;
3793 }
3794
3795 return 0;
Olivier Houchardbd84ac82017-11-03 13:43:35 +01003796}
3797
Olivier Houcharde6060c52017-11-16 17:42:52 +01003798
William Lallemanded0b5ad2017-10-30 19:36:36 +01003799/* SSL callback used on new session creation */
William Lallemand4f45bb92017-10-30 20:08:51 +01003800int sh_ssl_sess_new_cb(SSL *ssl, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01003801{
3802 unsigned char encsess[SHSESS_MAX_DATA_LEN]; /* encoded session */
3803 unsigned char encid[SSL_MAX_SSL_SESSION_ID_LENGTH]; /* encoded id */
3804 unsigned char *p;
3805 int data_len;
Emeric Bruneb469652019-10-08 18:27:37 +02003806 unsigned int sid_length;
William Lallemanded0b5ad2017-10-30 19:36:36 +01003807 const unsigned char *sid_data;
William Lallemanded0b5ad2017-10-30 19:36:36 +01003808
3809 /* Session id is already stored in to key and session id is known
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05003810 * so we don't store it to keep size.
Emeric Bruneb469652019-10-08 18:27:37 +02003811 * note: SSL_SESSION_set1_id is using
3812 * a memcpy so we need to use a different pointer
3813 * than sid_data or sid_ctx_data to avoid valgrind
3814 * complaining.
William Lallemanded0b5ad2017-10-30 19:36:36 +01003815 */
3816
3817 sid_data = SSL_SESSION_get_id(sess, &sid_length);
Emeric Bruneb469652019-10-08 18:27:37 +02003818
3819 /* copy value in an other buffer */
3820 memcpy(encid, sid_data, sid_length);
3821
3822 /* pad with 0 */
3823 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH)
3824 memset(encid + sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH-sid_length);
3825
3826 /* force length to zero to avoid ASN1 encoding */
3827 SSL_SESSION_set1_id(sess, encid, 0);
3828
3829 /* force length to zero to avoid ASN1 encoding */
3830 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, 0);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003831
3832 /* check if buffer is large enough for the ASN1 encoded session */
3833 data_len = i2d_SSL_SESSION(sess, NULL);
3834 if (data_len > SHSESS_MAX_DATA_LEN)
3835 goto err;
3836
3837 p = encsess;
3838
3839 /* process ASN1 session encoding before the lock */
3840 i2d_SSL_SESSION(sess, &p);
3841
William Lallemanded0b5ad2017-10-30 19:36:36 +01003842
William Lallemanda3c77cf2017-10-30 23:44:40 +01003843 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003844 /* store to cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01003845 sh_ssl_sess_store(encid, encsess, data_len);
William Lallemanda3c77cf2017-10-30 23:44:40 +01003846 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003847err:
3848 /* reset original length values */
Emeric Bruneb469652019-10-08 18:27:37 +02003849 SSL_SESSION_set1_id(sess, encid, sid_length);
3850 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
William Lallemanded0b5ad2017-10-30 19:36:36 +01003851
3852 return 0; /* do not increment session reference count */
3853}
3854
3855/* SSL callback used on lookup an existing session cause none found in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01003856SSL_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 +01003857{
William Lallemand4f45bb92017-10-30 20:08:51 +01003858 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01003859 unsigned char data[SHSESS_MAX_DATA_LEN], *p;
3860 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
William Lallemanded0b5ad2017-10-30 19:36:36 +01003861 SSL_SESSION *sess;
William Lallemand4f45bb92017-10-30 20:08:51 +01003862 struct shared_block *first;
William Lallemanded0b5ad2017-10-30 19:36:36 +01003863
3864 global.shctx_lookups++;
3865
3866 /* allow the session to be freed automatically by openssl */
3867 *do_copy = 0;
3868
3869 /* tree key is zeros padded sessionid */
3870 if (key_len < SSL_MAX_SSL_SESSION_ID_LENGTH) {
3871 memcpy(tmpkey, key, key_len);
3872 memset(tmpkey + key_len, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - key_len);
3873 key = tmpkey;
3874 }
3875
3876 /* lock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01003877 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003878
3879 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01003880 sh_ssl_sess = sh_ssl_sess_tree_lookup(key);
3881 if (!sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01003882 /* no session found: unlock cache and exit */
William Lallemanda3c77cf2017-10-30 23:44:40 +01003883 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003884 global.shctx_misses++;
3885 return NULL;
3886 }
3887
William Lallemand4f45bb92017-10-30 20:08:51 +01003888 /* sh_ssl_sess (shared_block->data) is at the end of shared_block */
3889 first = sh_ssl_sess_first_block(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003890
William Lallemand4f45bb92017-10-30 20:08:51 +01003891 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 +01003892
William Lallemanda3c77cf2017-10-30 23:44:40 +01003893 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003894
3895 /* decode ASN1 session */
3896 p = data;
William Lallemand4f45bb92017-10-30 20:08:51 +01003897 sess = d2i_SSL_SESSION(NULL, (const unsigned char **)&p, first->len-sizeof(struct sh_ssl_sess_hdr));
William Lallemanded0b5ad2017-10-30 19:36:36 +01003898 /* Reset session id and session id contenxt */
3899 if (sess) {
3900 SSL_SESSION_set1_id(sess, key, key_len);
3901 SSL_SESSION_set1_id_context(sess, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
3902 }
3903
3904 return sess;
3905}
3906
William Lallemand4f45bb92017-10-30 20:08:51 +01003907
William Lallemanded0b5ad2017-10-30 19:36:36 +01003908/* SSL callback used to signal session is no more used in internal cache */
William Lallemand4f45bb92017-10-30 20:08:51 +01003909void sh_ssl_sess_remove_cb(SSL_CTX *ctx, SSL_SESSION *sess)
William Lallemanded0b5ad2017-10-30 19:36:36 +01003910{
William Lallemand4f45bb92017-10-30 20:08:51 +01003911 struct sh_ssl_sess_hdr *sh_ssl_sess;
William Lallemanded0b5ad2017-10-30 19:36:36 +01003912 unsigned char tmpkey[SSL_MAX_SSL_SESSION_ID_LENGTH];
3913 unsigned int sid_length;
3914 const unsigned char *sid_data;
3915 (void)ctx;
3916
3917 sid_data = SSL_SESSION_get_id(sess, &sid_length);
3918 /* tree key is zeros padded sessionid */
3919 if (sid_length < SSL_MAX_SSL_SESSION_ID_LENGTH) {
3920 memcpy(tmpkey, sid_data, sid_length);
3921 memset(tmpkey+sid_length, 0, SSL_MAX_SSL_SESSION_ID_LENGTH - sid_length);
3922 sid_data = tmpkey;
3923 }
3924
William Lallemanda3c77cf2017-10-30 23:44:40 +01003925 shctx_lock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003926
3927 /* lookup for session */
William Lallemand4f45bb92017-10-30 20:08:51 +01003928 sh_ssl_sess = sh_ssl_sess_tree_lookup(sid_data);
3929 if (sh_ssl_sess) {
William Lallemanded0b5ad2017-10-30 19:36:36 +01003930 /* free session */
William Lallemand4f45bb92017-10-30 20:08:51 +01003931 sh_ssl_sess_tree_delete(sh_ssl_sess);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003932 }
3933
3934 /* unlock cache */
William Lallemanda3c77cf2017-10-30 23:44:40 +01003935 shctx_unlock(ssl_shctx);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003936}
3937
3938/* Set session cache mode to server and disable openssl internal cache.
3939 * Set shared cache callbacks on an ssl context.
3940 * Shared context MUST be firstly initialized */
William Lallemand4f45bb92017-10-30 20:08:51 +01003941void ssl_set_shctx(SSL_CTX *ctx)
William Lallemanded0b5ad2017-10-30 19:36:36 +01003942{
3943 SSL_CTX_set_session_id_context(ctx, (const unsigned char *)SHCTX_APPNAME, strlen(SHCTX_APPNAME));
3944
3945 if (!ssl_shctx) {
3946 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
3947 return;
3948 }
3949
3950 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_SERVER |
3951 SSL_SESS_CACHE_NO_INTERNAL |
3952 SSL_SESS_CACHE_NO_AUTO_CLEAR);
3953
3954 /* Set callbacks */
William Lallemand4f45bb92017-10-30 20:08:51 +01003955 SSL_CTX_sess_set_new_cb(ctx, sh_ssl_sess_new_cb);
3956 SSL_CTX_sess_set_get_cb(ctx, sh_ssl_sess_get_cb);
3957 SSL_CTX_sess_set_remove_cb(ctx, sh_ssl_sess_remove_cb);
William Lallemanded0b5ad2017-10-30 19:36:36 +01003958}
William Lallemand7d42ef52020-07-06 11:41:30 +02003959
3960/*
3961 * https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format
3962 *
3963 * The format is:
3964 * * <Label> <space> <ClientRandom> <space> <Secret>
3965 * We only need to copy the secret as there is a sample fetch for the ClientRandom
3966 */
3967
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05003968#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02003969void SSL_CTX_keylog(const SSL *ssl, const char *line)
3970{
3971 struct ssl_keylog *keylog;
3972 char *lastarg = NULL;
3973 char *dst = NULL;
3974
3975 keylog = SSL_get_ex_data(ssl, ssl_keylog_index);
3976 if (!keylog)
3977 return;
3978
3979 lastarg = strrchr(line, ' ');
3980 if (lastarg == NULL || ++lastarg == NULL)
3981 return;
3982
3983 dst = pool_alloc(pool_head_ssl_keylog_str);
3984 if (!dst)
3985 return;
3986
3987 strncpy(dst, lastarg, SSL_KEYLOG_MAX_SECRET_SIZE-1);
3988 dst[SSL_KEYLOG_MAX_SECRET_SIZE-1] = '\0';
3989
3990 if (strncmp(line, "CLIENT_RANDOM ", strlen("CLIENT RANDOM ")) == 0) {
3991 if (keylog->client_random)
3992 goto error;
3993 keylog->client_random = dst;
3994
3995 } else if (strncmp(line, "CLIENT_EARLY_TRAFFIC_SECRET ", strlen("CLIENT_EARLY_TRAFFIC_SECRET ")) == 0) {
3996 if (keylog->client_early_traffic_secret)
3997 goto error;
3998 keylog->client_early_traffic_secret = dst;
3999
4000 } else if (strncmp(line, "CLIENT_HANDSHAKE_TRAFFIC_SECRET ", strlen("CLIENT_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4001 if(keylog->client_handshake_traffic_secret)
4002 goto error;
4003 keylog->client_handshake_traffic_secret = dst;
4004
4005 } else if (strncmp(line, "SERVER_HANDSHAKE_TRAFFIC_SECRET ", strlen("SERVER_HANDSHAKE_TRAFFIC_SECRET ")) == 0) {
4006 if (keylog->server_handshake_traffic_secret)
4007 goto error;
4008 keylog->server_handshake_traffic_secret = dst;
4009
4010 } else if (strncmp(line, "CLIENT_TRAFFIC_SECRET_0 ", strlen("CLIENT_TRAFFIC_SECRET_0 ")) == 0) {
4011 if (keylog->client_traffic_secret_0)
4012 goto error;
4013 keylog->client_traffic_secret_0 = dst;
4014
4015 } else if (strncmp(line, "SERVER_TRAFFIC_SECRET_0 ", strlen("SERVER_TRAFFIC_SECRET_0 ")) == 0) {
4016 if (keylog->server_traffic_secret_0)
4017 goto error;
4018 keylog->server_traffic_secret_0 = dst;
4019
4020 } else if (strncmp(line, "EARLY_EXPORTER_SECRET ", strlen("EARLY_EXPORTER_SECRET ")) == 0) {
4021 if (keylog->early_exporter_secret)
4022 goto error;
4023 keylog->early_exporter_secret = dst;
4024
4025 } else if (strncmp(line, "EXPORTER_SECRET ", strlen("EXPORTER_SECRET ")) == 0) {
4026 if (keylog->exporter_secret)
4027 goto error;
4028 keylog->exporter_secret = dst;
4029 } else {
4030 goto error;
4031 }
4032
4033 return;
4034
4035error:
4036 pool_free(pool_head_ssl_keylog_str, dst);
4037
4038 return;
4039}
4040#endif
William Lallemanded0b5ad2017-10-30 19:36:36 +01004041
William Lallemand8b453912019-11-21 15:48:10 +01004042/*
4043 * This function applies the SSL configuration on a SSL_CTX
4044 * It returns an error code and fills the <err> buffer
4045 */
4046int 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 +01004047{
4048 struct proxy *curproxy = bind_conf->frontend;
4049 int cfgerr = 0;
4050 int verify = SSL_VERIFY_NONE;
Willy Tarreau5d4cafb2018-01-04 18:55:19 +01004051 struct ssl_bind_conf __maybe_unused *ssl_conf_cur;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004052 const char *conf_ciphers;
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004053#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004054 const char *conf_ciphersuites;
4055#endif
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004056 const char *conf_curves = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004057
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004058 if (ssl_conf) {
4059 struct tls_version_filter *conf_ssl_methods = &ssl_conf->ssl_methods;
4060 int i, min, max;
4061 int flags = MC_SSL_O_ALL;
4062
4063 /* Real min and max should be determinate with configuration and openssl's capabilities */
Emmanuel Hocdet43664762017-08-09 18:26:20 +02004064 min = conf_ssl_methods->min ? conf_ssl_methods->min : bind_conf->ssl_conf.ssl_methods.min;
4065 max = conf_ssl_methods->max ? conf_ssl_methods->max : bind_conf->ssl_conf.ssl_methods.max;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004066 if (min)
4067 flags |= (methodVersions[min].flag - 1);
4068 if (max)
4069 flags |= ~((methodVersions[max].flag << 1) - 1);
4070 min = max = CONF_TLSV_NONE;
4071 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4072 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
4073 if (min)
4074 max = i;
4075 else
4076 min = max = i;
4077 }
4078 /* save real min/max */
4079 conf_ssl_methods->min = min;
4080 conf_ssl_methods->max = max;
4081 if (!min) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004082 memprintf(err, "%sProxy '%s': all SSL/TLS versions are disabled for bind '%s' at [%s:%d].\n",
4083 err && *err ? *err : "", bind_conf->frontend->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004084 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdetdf701a22017-05-18 12:46:50 +02004085 }
4086 }
4087
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004088 switch ((ssl_conf && ssl_conf->verify) ? ssl_conf->verify : bind_conf->ssl_conf.verify) {
Emeric Brun850efd52014-01-29 12:24:34 +01004089 case SSL_SOCK_VERIFY_NONE:
4090 verify = SSL_VERIFY_NONE;
4091 break;
4092 case SSL_SOCK_VERIFY_OPTIONAL:
4093 verify = SSL_VERIFY_PEER;
4094 break;
4095 case SSL_SOCK_VERIFY_REQUIRED:
4096 verify = SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
4097 break;
4098 }
4099 SSL_CTX_set_verify(ctx, verify, ssl_sock_bind_verifycbk);
4100 if (verify & SSL_VERIFY_PEER) {
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004101 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 +01004102 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 +01004103 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 +01004104 if (ca_file || ca_verify_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004105 /* set CAfile to verify */
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004106 if (ca_file && !ssl_set_verify_locations_file(ctx, ca_file)) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004107 memprintf(err, "%sProxy '%s': unable to set CA file '%s' for bind '%s' at [%s:%d].\n",
Tim Duesterhus93128532019-11-23 23:45:10 +01004108 err && *err ? *err : "", curproxy->id, ca_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004109 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004110 }
Emmanuel Hocdet842e94e2019-12-16 16:39:17 +01004111 if (ca_verify_file && !ssl_set_verify_locations_file(ctx, ca_verify_file)) {
4112 memprintf(err, "%sProxy '%s': unable to set CA-no-names file '%s' for bind '%s' at [%s:%d].\n",
4113 err && *err ? *err : "", curproxy->id, ca_verify_file, bind_conf->arg, bind_conf->file, bind_conf->line);
4114 cfgerr |= ERR_ALERT | ERR_FATAL;
4115 }
4116 if (ca_file && !((ssl_conf && ssl_conf->no_ca_names) || bind_conf->ssl_conf.no_ca_names)) {
Emmanuel Hocdet174dfe52017-07-28 15:01:05 +02004117 /* set CA names for client cert request, function returns void */
Emmanuel Hocdet129d3282019-10-24 18:08:51 +02004118 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 +02004119 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004120 }
Emeric Brun850efd52014-01-29 12:24:34 +01004121 else {
Tim Duesterhus93128532019-11-23 23:45:10 +01004122 memprintf(err, "%sProxy '%s': verify is enabled but no CA file specified for bind '%s' at [%s:%d].\n",
4123 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004124 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun850efd52014-01-29 12:24:34 +01004125 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004126#ifdef X509_V_FLAG_CRL_CHECK
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004127 if (crl_file) {
Emeric Brund94b3fe2012-09-20 18:23:56 +02004128 X509_STORE *store = SSL_CTX_get_cert_store(ctx);
4129
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004130 if (!ssl_set_cert_crl_file(store, crl_file)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004131 memprintf(err, "%sProxy '%s': unable to configure CRL file '%s' for bind '%s' at [%s:%d].\n",
4132 err && *err ? *err : "", curproxy->id, crl_file, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004133 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brund94b3fe2012-09-20 18:23:56 +02004134 }
Emeric Brun561e5742012-10-02 15:20:55 +02004135 else {
4136 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4137 }
Emeric Brund94b3fe2012-09-20 18:23:56 +02004138 }
Emeric Brun051cdab2012-10-02 19:25:50 +02004139#endif
Emeric Brun644cde02012-12-14 11:21:13 +01004140 ERR_clear_error();
Emeric Brund94b3fe2012-09-20 18:23:56 +02004141 }
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004142#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
Nenad Merdanovic146defa2015-05-09 08:46:00 +02004143 if(bind_conf->keys_ref) {
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004144 if (!SSL_CTX_set_tlsext_ticket_key_cb(ctx, ssl_tlsext_ticket_key_cb)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004145 memprintf(err, "%sProxy '%s': unable to set callback for TLS ticket validation for bind '%s' at [%s:%d].\n",
4146 err && *err ? *err : "", curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004147 cfgerr |= ERR_ALERT | ERR_FATAL;
Nenad Merdanovic05552d42015-02-27 19:56:49 +01004148 }
4149 }
4150#endif
4151
William Lallemand4f45bb92017-10-30 20:08:51 +01004152 ssl_set_shctx(ctx);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004153 conf_ciphers = (ssl_conf && ssl_conf->ciphers) ? ssl_conf->ciphers : bind_conf->ssl_conf.ciphers;
4154 if (conf_ciphers &&
4155 !SSL_CTX_set_cipher_list(ctx, conf_ciphers)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004156 memprintf(err, "%sProxy '%s': unable to set SSL cipher list to '%s' for bind '%s' at [%s:%d].\n",
4157 err && *err ? *err : "", curproxy->id, conf_ciphers, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004158 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004159 }
4160
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004161#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004162 conf_ciphersuites = (ssl_conf && ssl_conf->ciphersuites) ? ssl_conf->ciphersuites : bind_conf->ssl_conf.ciphersuites;
4163 if (conf_ciphersuites &&
4164 !SSL_CTX_set_ciphersuites(ctx, conf_ciphersuites)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004165 memprintf(err, "%sProxy '%s': unable to set TLS 1.3 cipher suites to '%s' for bind '%s' at [%s:%d].\n",
4166 err && *err ? *err : "", curproxy->id, conf_ciphersuites, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004167 cfgerr |= ERR_ALERT | ERR_FATAL;
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004168 }
4169#endif
4170
Emmanuel Hocdetcc6c2a22017-03-03 17:04:14 +01004171#ifndef OPENSSL_NO_DH
Remi Gacogne47783ef2015-05-29 15:53:22 +02004172 /* If tune.ssl.default-dh-param has not been set,
4173 neither has ssl-default-dh-file and no static DH
4174 params were in the certificate file. */
Willy Tarreauef934602016-12-22 23:12:01 +01004175 if (global_ssl.default_dh_param == 0 &&
Remi Gacogne47783ef2015-05-29 15:53:22 +02004176 global_dh == NULL &&
Remi Gacogne4f902b82015-05-28 16:23:00 +02004177 (ssl_dh_ptr_index == -1 ||
4178 SSL_CTX_get_ex_data(ctx, ssl_dh_ptr_index) == NULL)) {
Willy Tarreau3ba77d22020-05-08 09:31:18 +02004179 /* default to dh-param 2048 */
4180 global_ssl.default_dh_param = 2048;
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004181 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004182
Willy Tarreauef934602016-12-22 23:12:01 +01004183 if (global_ssl.default_dh_param >= 1024) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004184 if (local_dh_1024 == NULL) {
4185 local_dh_1024 = ssl_get_dh_1024();
4186 }
Willy Tarreauef934602016-12-22 23:12:01 +01004187 if (global_ssl.default_dh_param >= 2048) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004188 if (local_dh_2048 == NULL) {
4189 local_dh_2048 = ssl_get_dh_2048();
4190 }
Willy Tarreauef934602016-12-22 23:12:01 +01004191 if (global_ssl.default_dh_param >= 4096) {
Remi Gacogne8de54152014-07-15 11:36:40 +02004192 if (local_dh_4096 == NULL) {
4193 local_dh_4096 = ssl_get_dh_4096();
4194 }
Remi Gacogne8de54152014-07-15 11:36:40 +02004195 }
4196 }
4197 }
4198#endif /* OPENSSL_NO_DH */
Remi Gacognef46cd6e2014-06-12 14:58:40 +02004199
Emeric Brunfc0421f2012-09-07 17:30:07 +02004200 SSL_CTX_set_info_callback(ctx, ssl_sock_infocbk);
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004201#if HA_OPENSSL_VERSION_NUMBER >= 0x00907000L
Emeric Brun29f037d2014-04-25 19:05:36 +02004202 SSL_CTX_set_msg_callback(ctx, ssl_sock_msgcbk);
Willy Tarreau5cbe4ef2014-05-08 22:45:11 +02004203#endif
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05004204#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02004205 SSL_CTX_set_keylog_callback(ctx, SSL_CTX_keylog);
4206#endif
Emeric Brun29f037d2014-04-25 19:05:36 +02004207
Bernard Spil13c53f82018-02-15 13:34:58 +01004208#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004209 ssl_conf_cur = NULL;
4210 if (ssl_conf && ssl_conf->npn_str)
4211 ssl_conf_cur = ssl_conf;
4212 else if (bind_conf->ssl_conf.npn_str)
4213 ssl_conf_cur = &bind_conf->ssl_conf;
4214 if (ssl_conf_cur)
4215 SSL_CTX_set_next_protos_advertised_cb(ctx, ssl_sock_advertise_npn_protos, ssl_conf_cur);
Willy Tarreau6c9a3d52012-10-18 18:57:14 +02004216#endif
Dirkjan Bussink48f1c4e2014-02-13 12:29:42 +01004217#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004218 ssl_conf_cur = NULL;
4219 if (ssl_conf && ssl_conf->alpn_str)
4220 ssl_conf_cur = ssl_conf;
4221 else if (bind_conf->ssl_conf.alpn_str)
4222 ssl_conf_cur = &bind_conf->ssl_conf;
4223 if (ssl_conf_cur)
4224 SSL_CTX_set_alpn_select_cb(ctx, ssl_sock_advertise_alpn_protos, ssl_conf_cur);
Willy Tarreauab861d32013-04-02 02:30:41 +02004225#endif
Ilya Shipitsin0aa8c292020-11-04 00:39:07 +05004226#if defined(SSL_CTX_set1_curves_list)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004227 conf_curves = (ssl_conf && ssl_conf->curves) ? ssl_conf->curves : bind_conf->ssl_conf.curves;
4228 if (conf_curves) {
4229 if (!SSL_CTX_set1_curves_list(ctx, conf_curves)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004230 memprintf(err, "%sProxy '%s': unable to set SSL curves list to '%s' for bind '%s' at [%s:%d].\n",
4231 err && *err ? *err : "", curproxy->id, conf_curves, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004232 cfgerr |= ERR_ALERT | ERR_FATAL;
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004233 }
Emmanuel Hocdeta52bb152017-03-20 11:11:49 +01004234 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004235 }
4236#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004237#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
Emmanuel Hocdete7f2b732017-01-09 16:15:54 +01004238 if (!conf_curves) {
Emeric Brun2b58d042012-09-20 17:10:03 +02004239 int i;
4240 EC_KEY *ecdh;
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004241#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004242 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
Olivier Houchardc2aae742017-09-22 18:26:28 +02004243 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4244 NULL);
4245
4246 if (ecdhe == NULL) {
Eric Salama3c8bde82019-11-20 11:33:40 +01004247 (void)SSL_CTX_set_ecdh_auto(ctx, 1);
Olivier Houchardc2aae742017-09-22 18:26:28 +02004248 return cfgerr;
4249 }
4250#else
4251 const char *ecdhe = (ssl_conf && ssl_conf->ecdhe) ? ssl_conf->ecdhe :
4252 (bind_conf->ssl_conf.ecdhe ? bind_conf->ssl_conf.ecdhe :
4253 ECDHE_DEFAULT_CURVE);
4254#endif
Emeric Brun2b58d042012-09-20 17:10:03 +02004255
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004256 i = OBJ_sn2nid(ecdhe);
Emeric Brun2b58d042012-09-20 17:10:03 +02004257 if (!i || ((ecdh = EC_KEY_new_by_curve_name(i)) == NULL)) {
Tim Duesterhus93128532019-11-23 23:45:10 +01004258 memprintf(err, "%sProxy '%s': unable to set elliptic named curve to '%s' for bind '%s' at [%s:%d].\n",
4259 err && *err ? *err : "", curproxy->id, ecdhe, bind_conf->arg, bind_conf->file, bind_conf->line);
William Lallemand8b453912019-11-21 15:48:10 +01004260 cfgerr |= ERR_ALERT | ERR_FATAL;
Emeric Brun2b58d042012-09-20 17:10:03 +02004261 }
4262 else {
4263 SSL_CTX_set_tmp_ecdh(ctx, ecdh);
4264 EC_KEY_free(ecdh);
4265 }
4266 }
4267#endif
4268
Emeric Brunfc0421f2012-09-07 17:30:07 +02004269 return cfgerr;
4270}
4271
Evan Broderbe554312013-06-27 00:05:25 -07004272static int ssl_sock_srv_hostcheck(const char *pattern, const char *hostname)
4273{
4274 const char *pattern_wildcard, *pattern_left_label_end, *hostname_left_label_end;
4275 size_t prefixlen, suffixlen;
4276
4277 /* Trivial case */
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004278 if (strcasecmp(pattern, hostname) == 0)
Evan Broderbe554312013-06-27 00:05:25 -07004279 return 1;
4280
Evan Broderbe554312013-06-27 00:05:25 -07004281 /* The rest of this logic is based on RFC 6125, section 6.4.3
4282 * (http://tools.ietf.org/html/rfc6125#section-6.4.3) */
4283
Emeric Bruna848dae2013-10-08 11:27:28 +02004284 pattern_wildcard = NULL;
4285 pattern_left_label_end = pattern;
4286 while (*pattern_left_label_end != '.') {
4287 switch (*pattern_left_label_end) {
4288 case 0:
4289 /* End of label not found */
4290 return 0;
4291 case '*':
4292 /* If there is more than one wildcards */
4293 if (pattern_wildcard)
4294 return 0;
4295 pattern_wildcard = pattern_left_label_end;
4296 break;
4297 }
4298 pattern_left_label_end++;
4299 }
4300
4301 /* If it's not trivial and there is no wildcard, it can't
4302 * match */
4303 if (!pattern_wildcard)
Evan Broderbe554312013-06-27 00:05:25 -07004304 return 0;
4305
4306 /* Make sure all labels match except the leftmost */
4307 hostname_left_label_end = strchr(hostname, '.');
4308 if (!hostname_left_label_end
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004309 || strcasecmp(pattern_left_label_end, hostname_left_label_end) != 0)
Evan Broderbe554312013-06-27 00:05:25 -07004310 return 0;
4311
4312 /* Make sure the leftmost label of the hostname is long enough
4313 * that the wildcard can match */
Emeric Brun369da852013-10-08 11:39:35 +02004314 if (hostname_left_label_end - hostname < (pattern_left_label_end - pattern) - 1)
Evan Broderbe554312013-06-27 00:05:25 -07004315 return 0;
4316
4317 /* Finally compare the string on either side of the
4318 * wildcard */
4319 prefixlen = pattern_wildcard - pattern;
4320 suffixlen = pattern_left_label_end - (pattern_wildcard + 1);
William Lallemand2d6fd0a2020-09-14 15:20:10 +02004321 if ((prefixlen && (strncasecmp(pattern, hostname, prefixlen) != 0))
4322 || (suffixlen && (strncasecmp(pattern_wildcard + 1, hostname_left_label_end - suffixlen, suffixlen) != 0)))
Evan Broderbe554312013-06-27 00:05:25 -07004323 return 0;
4324
4325 return 1;
4326}
4327
4328static int ssl_sock_srv_verifycbk(int ok, X509_STORE_CTX *ctx)
4329{
4330 SSL *ssl;
4331 struct connection *conn;
Olivier Houchard66ab4982019-02-26 18:37:15 +01004332 struct ssl_sock_ctx *ssl_ctx;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004333 const char *servername;
Willy Tarreau71d058c2017-07-26 20:09:56 +02004334 const char *sni;
Evan Broderbe554312013-06-27 00:05:25 -07004335
4336 int depth;
4337 X509 *cert;
4338 STACK_OF(GENERAL_NAME) *alt_names;
4339 int i;
4340 X509_NAME *cert_subject;
4341 char *str;
4342
4343 if (ok == 0)
4344 return ok;
4345
4346 ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
Thierry FOURNIER28962c92018-06-17 21:37:05 +02004347 conn = SSL_get_ex_data(ssl, ssl_app_data_index);
Olivier Houchard66ab4982019-02-26 18:37:15 +01004348 ssl_ctx = conn->xprt_ctx;
Evan Broderbe554312013-06-27 00:05:25 -07004349
Willy Tarreauad92a9a2017-07-28 11:38:41 +02004350 /* We're checking if the provided hostnames match the desired one. The
4351 * desired hostname comes from the SNI we presented if any, or if not
4352 * provided then it may have been explicitly stated using a "verifyhost"
4353 * directive. If neither is set, we don't care about the name so the
4354 * verification is OK.
Willy Tarreau2ab88672017-07-05 18:23:03 +02004355 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01004356 servername = SSL_get_servername(ssl_ctx->ssl, TLSEXT_NAMETYPE_host_name);
Willy Tarreau71d058c2017-07-26 20:09:56 +02004357 sni = servername;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004358 if (!servername) {
Willy Tarreau07d94e42018-09-20 10:57:52 +02004359 servername = __objt_server(conn->target)->ssl_ctx.verify_host;
Willy Tarreau2ab88672017-07-05 18:23:03 +02004360 if (!servername)
4361 return ok;
4362 }
Evan Broderbe554312013-06-27 00:05:25 -07004363
4364 /* We only need to verify the CN on the actual server cert,
4365 * not the indirect CAs */
4366 depth = X509_STORE_CTX_get_error_depth(ctx);
4367 if (depth != 0)
4368 return ok;
4369
4370 /* At this point, the cert is *not* OK unless we can find a
4371 * hostname match */
4372 ok = 0;
4373
4374 cert = X509_STORE_CTX_get_current_cert(ctx);
4375 /* It seems like this might happen if verify peer isn't set */
4376 if (!cert)
4377 return ok;
4378
4379 alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
4380 if (alt_names) {
4381 for (i = 0; !ok && i < sk_GENERAL_NAME_num(alt_names); i++) {
4382 GENERAL_NAME *name = sk_GENERAL_NAME_value(alt_names, i);
4383 if (name->type == GEN_DNS) {
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004384#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Emeric Bruna33410c2013-09-17 15:47:48 +02004385 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.ia5) >= 0) {
4386#else
Evan Broderbe554312013-06-27 00:05:25 -07004387 if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
Emeric Bruna33410c2013-09-17 15:47:48 +02004388#endif
Evan Broderbe554312013-06-27 00:05:25 -07004389 ok = ssl_sock_srv_hostcheck(str, servername);
4390 OPENSSL_free(str);
4391 }
4392 }
4393 }
Emeric Brun4ad50a42013-09-17 15:19:54 +02004394 sk_GENERAL_NAME_pop_free(alt_names, GENERAL_NAME_free);
Evan Broderbe554312013-06-27 00:05:25 -07004395 }
4396
4397 cert_subject = X509_get_subject_name(cert);
4398 i = -1;
4399 while (!ok && (i = X509_NAME_get_index_by_NID(cert_subject, NID_commonName, i)) != -1) {
4400 X509_NAME_ENTRY *entry = X509_NAME_get_entry(cert_subject, i);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02004401 ASN1_STRING *value;
4402 value = X509_NAME_ENTRY_get_data(entry);
4403 if (ASN1_STRING_to_UTF8((unsigned char **)&str, value) >= 0) {
Evan Broderbe554312013-06-27 00:05:25 -07004404 ok = ssl_sock_srv_hostcheck(str, servername);
4405 OPENSSL_free(str);
4406 }
4407 }
4408
Willy Tarreau71d058c2017-07-26 20:09:56 +02004409 /* report the mismatch and indicate if SNI was used or not */
4410 if (!ok && !conn->err_code)
4411 conn->err_code = sni ? CO_ER_SSL_MISMATCH_SNI : CO_ER_SSL_MISMATCH;
Evan Broderbe554312013-06-27 00:05:25 -07004412 return ok;
4413}
4414
Emeric Brun94324a42012-10-11 14:00:19 +02004415/* prepare ssl context from servers options. Returns an error count */
Willy Tarreau03209342016-12-22 17:08:28 +01004416int ssl_sock_prepare_srv_ctx(struct server *srv)
Emeric Brun94324a42012-10-11 14:00:19 +02004417{
Willy Tarreau03209342016-12-22 17:08:28 +01004418 struct proxy *curproxy = srv->proxy;
Emeric Brun94324a42012-10-11 14:00:19 +02004419 int cfgerr = 0;
Remi Gacogneaf5c3da2014-05-19 10:29:58 +02004420 long options =
Emeric Brun94324a42012-10-11 14:00:19 +02004421 SSL_OP_ALL | /* all known workarounds for bugs */
4422 SSL_OP_NO_SSLv2 |
4423 SSL_OP_NO_COMPRESSION;
Remi Gacogneaf5c3da2014-05-19 10:29:58 +02004424 long mode =
Emeric Brun94324a42012-10-11 14:00:19 +02004425 SSL_MODE_ENABLE_PARTIAL_WRITE |
4426 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
Willy Tarreau396a1862014-11-13 14:06:52 +01004427 SSL_MODE_RELEASE_BUFFERS |
4428 SSL_MODE_SMALL_BUFFERS;
Emeric Brun850efd52014-01-29 12:24:34 +01004429 int verify = SSL_VERIFY_NONE;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004430 SSL_CTX *ctx = NULL;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004431 struct tls_version_filter *conf_ssl_methods = &srv->ssl_ctx.methods;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004432 int i, min, max, hole;
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004433 int flags = MC_SSL_O_ALL;
Emeric Brun94324a42012-10-11 14:00:19 +02004434
Thierry Fournier383085f2013-01-24 14:15:43 +01004435 /* Make sure openssl opens /dev/urandom before the chroot */
4436 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004437 ha_alert("OpenSSL random data generator initialization failed.\n");
Thierry Fournier383085f2013-01-24 14:15:43 +01004438 cfgerr++;
4439 }
4440
Willy Tarreaufce03112015-01-15 21:32:40 +01004441 /* Automatic memory computations need to know we use SSL there */
4442 global.ssl_used_backend = 1;
4443
4444 /* Initiate SSL context for current server */
Emeric Brun821bb9b2017-06-15 16:37:39 +02004445 if (!srv->ssl_ctx.reused_sess) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01004446 if ((srv->ssl_ctx.reused_sess = calloc(1, global.nbthread*sizeof(*srv->ssl_ctx.reused_sess))) == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004447 ha_alert("Proxy '%s', server '%s' [%s:%d] out of memory.\n",
4448 curproxy->id, srv->id,
4449 srv->conf.file, srv->conf.line);
Emeric Brun821bb9b2017-06-15 16:37:39 +02004450 cfgerr++;
4451 return cfgerr;
4452 }
4453 }
Christopher Fauletf61f33a2020-03-27 18:55:49 +01004454 if (srv->use_ssl == 1)
Emeric Brun94324a42012-10-11 14:00:19 +02004455 srv->xprt = &ssl_sock;
Emeric Brun94324a42012-10-11 14:00:19 +02004456
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004457 ctx = SSL_CTX_new(SSLv23_client_method());
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004458 if (!ctx) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004459 ha_alert("config : %s '%s', server '%s': unable to allocate ssl context.\n",
4460 proxy_type_str(curproxy), curproxy->id,
4461 srv->id);
Emeric Brun94324a42012-10-11 14:00:19 +02004462 cfgerr++;
4463 return cfgerr;
4464 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004465
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004466 if (conf_ssl_methods->flags && (conf_ssl_methods->min || conf_ssl_methods->max))
Christopher Faulet767a84b2017-11-24 16:50:31 +01004467 ha_warning("config : %s '%s': no-sslv3/no-tlsv1x are ignored for server '%s'. "
4468 "Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4469 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004470 else
4471 flags = conf_ssl_methods->flags;
4472
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004473 /* Real min and max should be determinate with configuration and openssl's capabilities */
4474 if (conf_ssl_methods->min)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004475 flags |= (methodVersions[conf_ssl_methods->min].flag - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004476 if (conf_ssl_methods->max)
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004477 flags |= ~((methodVersions[conf_ssl_methods->max].flag << 1) - 1);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004478
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004479 /* find min, max and holes */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004480 min = max = CONF_TLSV_NONE;
4481 hole = 0;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004482 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004483 /* version is in openssl && version not disable in configuration */
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004484 if (methodVersions[i].option && !(flags & methodVersions[i].flag)) {
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004485 if (min) {
4486 if (hole) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004487 ha_warning("config : %s '%s': SSL/TLS versions range not contiguous for server '%s'. "
4488 "Hole find for %s. Use only 'ssl-min-ver' and 'ssl-max-ver' to fix.\n",
4489 proxy_type_str(curproxy), curproxy->id, srv->id,
4490 methodVersions[hole].name);
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004491 hole = 0;
4492 }
4493 max = i;
4494 }
4495 else {
4496 min = max = i;
4497 }
4498 }
4499 else {
4500 if (min)
4501 hole = i;
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004502 }
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004503 if (!min) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004504 ha_alert("config : %s '%s': all SSL/TLS versions are disabled for server '%s'.\n",
4505 proxy_type_str(curproxy), curproxy->id, srv->id);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004506 cfgerr += 1;
4507 }
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004508
Willy Tarreau9a1ab082019-05-09 13:26:41 +02004509#if (HA_OPENSSL_VERSION_NUMBER < 0x1010000fL)
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004510 /* Keep force-xxx implementation as it is in older haproxy. It's a
Joseph Herlant017b3da2018-11-15 09:07:59 -08004511 precautionary measure to avoid any surprise with older openssl version. */
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004512 if (min == max)
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004513 methodVersions[min].ctx_set_version(ctx, SET_CLIENT);
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004514 else
4515 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
4516 if (flags & methodVersions[i].flag)
4517 options |= methodVersions[i].option;
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004518#else /* openssl >= 1.1.0 */
Emmanuel Hocdetb4e9ba42017-03-30 19:25:07 +02004519 /* set the max_version is required to cap TLS version or activate new TLS (v1.3) */
Emmanuel Hocdet4aa615f2017-05-18 12:33:19 +02004520 methodVersions[min].ctx_set_version(ctx, SET_MIN);
4521 methodVersions[max].ctx_set_version(ctx, SET_MAX);
Emmanuel Hocdet5db33cb2017-03-30 19:19:37 +02004522#endif
4523
4524 if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLS_TICKETS)
4525 options |= SSL_OP_NO_TICKET;
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004526 SSL_CTX_set_options(ctx, options);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004527
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05004528#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00004529 if (global_ssl.async)
4530 mode |= SSL_MODE_ASYNC;
4531#endif
Emmanuel Hocdet4de1ff12017-03-03 12:21:32 +01004532 SSL_CTX_set_mode(ctx, mode);
4533 srv->ssl_ctx.ctx = ctx;
4534
Emeric Bruna7aa3092012-10-26 12:58:00 +02004535 if (srv->ssl_ctx.client_crt) {
4536 if (SSL_CTX_use_PrivateKey_file(srv->ssl_ctx.ctx, srv->ssl_ctx.client_crt, SSL_FILETYPE_PEM) <= 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004537 ha_alert("config : %s '%s', server '%s': unable to load SSL private key from PEM file '%s'.\n",
4538 proxy_type_str(curproxy), curproxy->id,
4539 srv->id, srv->ssl_ctx.client_crt);
Emeric Bruna7aa3092012-10-26 12:58:00 +02004540 cfgerr++;
4541 }
4542 else if (SSL_CTX_use_certificate_chain_file(srv->ssl_ctx.ctx, srv->ssl_ctx.client_crt) <= 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004543 ha_alert("config : %s '%s', server '%s': unable to load ssl certificate from PEM file '%s'.\n",
4544 proxy_type_str(curproxy), curproxy->id,
4545 srv->id, srv->ssl_ctx.client_crt);
Emeric Bruna7aa3092012-10-26 12:58:00 +02004546 cfgerr++;
4547 }
4548 else if (SSL_CTX_check_private_key(srv->ssl_ctx.ctx) <= 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004549 ha_alert("config : %s '%s', server '%s': inconsistencies between private key and certificate loaded from PEM file '%s'.\n",
4550 proxy_type_str(curproxy), curproxy->id,
4551 srv->id, srv->ssl_ctx.client_crt);
Emeric Bruna7aa3092012-10-26 12:58:00 +02004552 cfgerr++;
4553 }
4554 }
Emeric Brun94324a42012-10-11 14:00:19 +02004555
Emeric Brun850efd52014-01-29 12:24:34 +01004556 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
4557 verify = SSL_VERIFY_PEER;
Emeric Brun850efd52014-01-29 12:24:34 +01004558 switch (srv->ssl_ctx.verify) {
4559 case SSL_SOCK_VERIFY_NONE:
4560 verify = SSL_VERIFY_NONE;
4561 break;
4562 case SSL_SOCK_VERIFY_REQUIRED:
4563 verify = SSL_VERIFY_PEER;
4564 break;
4565 }
Evan Broderbe554312013-06-27 00:05:25 -07004566 SSL_CTX_set_verify(srv->ssl_ctx.ctx,
Emeric Brun850efd52014-01-29 12:24:34 +01004567 verify,
Willy Tarreau2ab88672017-07-05 18:23:03 +02004568 (srv->ssl_ctx.verify_host || (verify & SSL_VERIFY_PEER)) ? ssl_sock_srv_verifycbk : NULL);
Emeric Brun850efd52014-01-29 12:24:34 +01004569 if (verify & SSL_VERIFY_PEER) {
Emeric Brunef42d922012-10-11 16:11:36 +02004570 if (srv->ssl_ctx.ca_file) {
Emmanuel Hocdetd4f9a602019-10-24 11:32:47 +02004571 /* set CAfile to verify */
4572 if (!ssl_set_verify_locations_file(srv->ssl_ctx.ctx, srv->ssl_ctx.ca_file)) {
4573 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to set CA file '%s'.\n",
Christopher Faulet767a84b2017-11-24 16:50:31 +01004574 curproxy->id, srv->id,
4575 srv->conf.file, srv->conf.line, srv->ssl_ctx.ca_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004576 cfgerr++;
4577 }
4578 }
Emeric Brun850efd52014-01-29 12:24:34 +01004579 else {
4580 if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
Christopher Faulet767a84b2017-11-24 16:50:31 +01004581 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",
4582 curproxy->id, srv->id,
4583 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004584 else
Christopher Faulet767a84b2017-11-24 16:50:31 +01004585 ha_alert("Proxy '%s', server '%s' [%s:%d] verify is enabled but no CA file specified.\n",
4586 curproxy->id, srv->id,
4587 srv->conf.file, srv->conf.line);
Emeric Brun850efd52014-01-29 12:24:34 +01004588 cfgerr++;
4589 }
Emeric Brunef42d922012-10-11 16:11:36 +02004590#ifdef X509_V_FLAG_CRL_CHECK
4591 if (srv->ssl_ctx.crl_file) {
4592 X509_STORE *store = SSL_CTX_get_cert_store(srv->ssl_ctx.ctx);
4593
Emmanuel Hocdetb270e812019-11-21 19:09:31 +01004594 if (!ssl_set_cert_crl_file(store, srv->ssl_ctx.crl_file)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004595 ha_alert("Proxy '%s', server '%s' [%s:%d] unable to configure CRL file '%s'.\n",
4596 curproxy->id, srv->id,
4597 srv->conf.file, srv->conf.line, srv->ssl_ctx.crl_file);
Emeric Brunef42d922012-10-11 16:11:36 +02004598 cfgerr++;
4599 }
4600 else {
4601 X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
4602 }
4603 }
4604#endif
4605 }
4606
Olivier Houchardbd84ac82017-11-03 13:43:35 +01004607 SSL_CTX_set_session_cache_mode(srv->ssl_ctx.ctx, SSL_SESS_CACHE_CLIENT |
4608 SSL_SESS_CACHE_NO_INTERNAL_STORE);
4609 SSL_CTX_sess_set_new_cb(srv->ssl_ctx.ctx, ssl_sess_new_srv_cb);
Emeric Brun94324a42012-10-11 14:00:19 +02004610 if (srv->ssl_ctx.ciphers &&
4611 !SSL_CTX_set_cipher_list(srv->ssl_ctx.ctx, srv->ssl_ctx.ciphers)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004612 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set SSL cipher list to '%s'.\n",
4613 curproxy->id, srv->id,
4614 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphers);
Emeric Brun94324a42012-10-11 14:00:19 +02004615 cfgerr++;
4616 }
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004617
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05004618#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004619 if (srv->ssl_ctx.ciphersuites &&
Pierre Cheynierbc34cd12019-03-21 16:15:47 +00004620 !SSL_CTX_set_ciphersuites(srv->ssl_ctx.ctx, srv->ssl_ctx.ciphersuites)) {
Dirkjan Bussink415150f2018-09-14 11:14:21 +02004621 ha_alert("Proxy '%s', server '%s' [%s:%d] : unable to set TLS 1.3 cipher suites to '%s'.\n",
4622 curproxy->id, srv->id,
4623 srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphersuites);
4624 cfgerr++;
4625 }
4626#endif
Olivier Houchardc7566002018-11-20 23:33:50 +01004627#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
4628 if (srv->ssl_ctx.npn_str)
4629 SSL_CTX_set_next_proto_select_cb(ctx, ssl_sock_srv_select_protos, srv);
4630#endif
4631#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
4632 if (srv->ssl_ctx.alpn_str)
4633 SSL_CTX_set_alpn_protos(ctx, (unsigned char *)srv->ssl_ctx.alpn_str, srv->ssl_ctx.alpn_len);
4634#endif
4635
Emeric Brun94324a42012-10-11 14:00:19 +02004636
4637 return cfgerr;
4638}
4639
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004640/* Walks down the two trees in bind_conf and prepares all certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02004641 * be NULL, in which case nothing is done. Returns the number of errors
4642 * encountered.
4643 */
Willy Tarreau03209342016-12-22 17:08:28 +01004644int ssl_sock_prepare_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02004645{
4646 struct ebmb_node *node;
4647 struct sni_ctx *sni;
4648 int err = 0;
William Lallemand8b453912019-11-21 15:48:10 +01004649 int errcode = 0;
4650 char *errmsg = NULL;
Emeric Brunfc0421f2012-09-07 17:30:07 +02004651
Willy Tarreaufce03112015-01-15 21:32:40 +01004652 /* Automatic memory computations need to know we use SSL there */
4653 global.ssl_used_frontend = 1;
4654
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004655 /* Make sure openssl opens /dev/urandom before the chroot */
4656 if (!ssl_initialize_random()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004657 ha_alert("OpenSSL random data generator initialization failed.\n");
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004658 err++;
4659 }
4660 /* Create initial_ctx used to start the ssl connection before do switchctx */
4661 if (!bind_conf->initial_ctx) {
Emmanuel Hocdetabd32332017-05-05 18:06:12 +02004662 err += ssl_sock_initial_ctx(bind_conf);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004663 /* It should not be necessary to call this function, but it's
4664 necessary first to check and move all initialisation related
4665 to initial_ctx in ssl_sock_initial_ctx. */
William Lallemand8b453912019-11-21 15:48:10 +01004666 errcode |= ssl_sock_prepare_ctx(bind_conf, NULL, bind_conf->initial_ctx, &errmsg);
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004667 }
Emeric Brun0bed9942014-10-30 19:25:24 +01004668 if (bind_conf->default_ctx)
William Lallemand8b453912019-11-21 15:48:10 +01004669 errcode |= ssl_sock_prepare_ctx(bind_conf, bind_conf->default_ssl_conf, bind_conf->default_ctx, &errmsg);
Emeric Brun0bed9942014-10-30 19:25:24 +01004670
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004671 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004672 while (node) {
4673 sni = ebmb_entry(node, struct sni_ctx, name);
Emeric Brun0bed9942014-10-30 19:25:24 +01004674 if (!sni->order && sni->ctx != bind_conf->default_ctx)
4675 /* only initialize the CTX on its first occurrence and
4676 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004677 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004678 node = ebmb_next(node);
4679 }
4680
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004681 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004682 while (node) {
4683 sni = ebmb_entry(node, struct sni_ctx, name);
William Lallemand8b453912019-11-21 15:48:10 +01004684 if (!sni->order && sni->ctx != bind_conf->default_ctx) {
Emeric Brun0bed9942014-10-30 19:25:24 +01004685 /* only initialize the CTX on its first occurrence and
4686 if it is not the default_ctx */
William Lallemand8b453912019-11-21 15:48:10 +01004687 errcode |= ssl_sock_prepare_ctx(bind_conf, sni->conf, sni->ctx, &errmsg);
4688 }
Emeric Brunfc0421f2012-09-07 17:30:07 +02004689 node = ebmb_next(node);
4690 }
William Lallemand8b453912019-11-21 15:48:10 +01004691
4692 if (errcode & ERR_WARN) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004693 ha_warning("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004694 } else if (errcode & ERR_CODE) {
Tim Duesterhusc0e820c2019-11-23 23:52:30 +01004695 ha_alert("%s", errmsg);
William Lallemand8b453912019-11-21 15:48:10 +01004696 err++;
4697 }
4698
4699 free(errmsg);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004700 return err;
4701}
4702
Willy Tarreau55d37912016-12-21 23:38:39 +01004703/* Prepares all the contexts for a bind_conf and allocates the shared SSL
4704 * context if needed. Returns < 0 on error, 0 on success. The warnings and
4705 * alerts are directly emitted since the rest of the stack does it below.
4706 */
4707int ssl_sock_prepare_bind_conf(struct bind_conf *bind_conf)
4708{
4709 struct proxy *px = bind_conf->frontend;
4710 int alloc_ctx;
4711 int err;
4712
4713 if (!bind_conf->is_ssl) {
4714 if (bind_conf->default_ctx) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004715 ha_warning("Proxy '%s': A certificate was specified but SSL was not enabled on bind '%s' at [%s:%d] (use 'ssl').\n",
4716 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Willy Tarreau55d37912016-12-21 23:38:39 +01004717 }
4718 return 0;
4719 }
4720 if (!bind_conf->default_ctx) {
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02004721 if (bind_conf->strict_sni && !bind_conf->generate_certs) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004722 ha_warning("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d], ssl connections will fail (use 'crt').\n",
4723 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02004724 }
4725 else {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004726 ha_alert("Proxy '%s': no SSL certificate specified for bind '%s' at [%s:%d] (use 'crt').\n",
4727 px->id, bind_conf->arg, bind_conf->file, bind_conf->line);
Emmanuel Hocdetaa0d6372017-08-09 11:24:25 +02004728 return -1;
4729 }
Willy Tarreau55d37912016-12-21 23:38:39 +01004730 }
William Lallemandc61c0b32017-12-04 18:46:39 +01004731 if (!ssl_shctx && global.tune.sslcachesize) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01004732 alloc_ctx = shctx_init(&ssl_shctx, global.tune.sslcachesize,
Frédéric Lécailleb7838af2018-10-22 16:21:39 +02004733 sizeof(struct sh_ssl_sess_hdr) + SHSESS_BLOCK_MIN_SIZE, -1,
William Lallemandc3cd35f2017-11-28 11:04:43 +01004734 sizeof(*sh_ssl_sess_tree),
4735 ((global.nbthread > 1) || (!global_ssl.private_cache && (global.nbproc > 1))) ? 1 : 0);
Frédéric Lécaille4c8aa112018-10-25 20:22:46 +02004736 if (alloc_ctx <= 0) {
William Lallemandc3cd35f2017-11-28 11:04:43 +01004737 if (alloc_ctx == SHCTX_E_INIT_LOCK)
4738 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");
4739 else
4740 ha_alert("Unable to allocate SSL session cache.\n");
4741 return -1;
4742 }
4743 /* free block callback */
4744 ssl_shctx->free_block = sh_ssl_sess_free_blocks;
4745 /* init the root tree within the extra space */
4746 sh_ssl_sess_tree = (void *)ssl_shctx + sizeof(struct shared_context);
4747 *sh_ssl_sess_tree = EB_ROOT_UNIQUE;
Willy Tarreau55d37912016-12-21 23:38:39 +01004748 }
Willy Tarreau55d37912016-12-21 23:38:39 +01004749 err = 0;
4750 /* initialize all certificate contexts */
4751 err += ssl_sock_prepare_all_ctx(bind_conf);
4752
4753 /* initialize CA variables if the certificates generation is enabled */
4754 err += ssl_sock_load_ca(bind_conf);
4755
4756 return -err;
4757}
Christopher Faulet77fe80c2015-07-29 13:02:40 +02004758
4759/* release ssl context allocated for servers. */
4760void ssl_sock_free_srv_ctx(struct server *srv)
4761{
Olivier Houchardc7566002018-11-20 23:33:50 +01004762#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
4763 if (srv->ssl_ctx.alpn_str)
4764 free(srv->ssl_ctx.alpn_str);
4765#endif
Lukas Tribusda95fd92018-11-25 13:21:27 +01004766#ifdef OPENSSL_NPN_NEGOTIATED
Olivier Houchardc7566002018-11-20 23:33:50 +01004767 if (srv->ssl_ctx.npn_str)
4768 free(srv->ssl_ctx.npn_str);
Lukas Tribus7706b852018-11-26 22:57:17 +01004769#endif
Christopher Faulet58feb492020-10-07 13:20:23 +02004770 if (srv->ssl_ctx.reused_sess) {
4771 int i;
4772
4773 for (i = 0; i < global.nbthread; i++)
4774 free(srv->ssl_ctx.reused_sess[i].ptr);
4775 free(srv->ssl_ctx.reused_sess);
4776 }
4777
Christopher Faulet77fe80c2015-07-29 13:02:40 +02004778 if (srv->ssl_ctx.ctx)
4779 SSL_CTX_free(srv->ssl_ctx.ctx);
4780}
4781
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004782/* Walks down the two trees in bind_conf and frees all the certs. The pointer may
Emeric Brunfc0421f2012-09-07 17:30:07 +02004783 * be NULL, in which case nothing is done. The default_ctx is nullified too.
4784 */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004785void ssl_sock_free_all_ctx(struct bind_conf *bind_conf)
Emeric Brunfc0421f2012-09-07 17:30:07 +02004786{
4787 struct ebmb_node *node, *back;
4788 struct sni_ctx *sni;
4789
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004790 node = ebmb_first(&bind_conf->sni_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004791 while (node) {
4792 sni = ebmb_entry(node, struct sni_ctx, name);
4793 back = ebmb_next(node);
4794 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02004795 SSL_CTX_free(sni->ctx);
William Lallemandb2408692020-06-24 09:54:29 +02004796 LIST_DEL(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004797 free(sni);
4798 node = back;
4799 }
4800
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004801 node = ebmb_first(&bind_conf->sni_w_ctx);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004802 while (node) {
4803 sni = ebmb_entry(node, struct sni_ctx, name);
4804 back = ebmb_next(node);
4805 ebmb_delete(node);
William Lallemand02e19a52020-04-08 16:11:26 +02004806 SSL_CTX_free(sni->ctx);
William Lallemandb2408692020-06-24 09:54:29 +02004807 LIST_DEL(&sni->by_ckch_inst);
Emeric Brunfc0421f2012-09-07 17:30:07 +02004808 free(sni);
4809 node = back;
4810 }
William Lallemandb2408692020-06-24 09:54:29 +02004811
Emmanuel Hocdetf6b37c62017-03-06 15:34:44 +01004812 SSL_CTX_free(bind_conf->initial_ctx);
4813 bind_conf->initial_ctx = NULL;
William Lallemand02e19a52020-04-08 16:11:26 +02004814 SSL_CTX_free(bind_conf->default_ctx);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02004815 bind_conf->default_ctx = NULL;
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004816 bind_conf->default_ssl_conf = NULL;
Emeric Brune1f38db2012-09-03 20:36:47 +02004817}
William Lallemandb2408692020-06-24 09:54:29 +02004818
4819
4820void ssl_sock_deinit()
4821{
4822 crtlist_deinit(); /* must be free'd before the ckchs */
4823 ckch_deinit();
4824}
4825REGISTER_POST_DEINIT(ssl_sock_deinit);
Emeric Brune1f38db2012-09-03 20:36:47 +02004826
Willy Tarreau795cdab2016-12-22 17:30:54 +01004827/* Destroys all the contexts for a bind_conf. This is used during deinit(). */
4828void ssl_sock_destroy_bind_conf(struct bind_conf *bind_conf)
4829{
4830 ssl_sock_free_ca(bind_conf);
4831 ssl_sock_free_all_ctx(bind_conf);
Emmanuel Hocdet98263292016-12-29 18:26:15 +01004832 ssl_sock_free_ssl_conf(&bind_conf->ssl_conf);
Willy Tarreau795cdab2016-12-22 17:30:54 +01004833 free(bind_conf->ca_sign_file);
4834 free(bind_conf->ca_sign_pass);
Willy Tarreau17b4aa12018-07-17 10:05:32 +02004835 if (bind_conf->keys_ref && !--bind_conf->keys_ref->refcount) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01004836 free(bind_conf->keys_ref->filename);
4837 free(bind_conf->keys_ref->tlskeys);
4838 LIST_DEL(&bind_conf->keys_ref->list);
4839 free(bind_conf->keys_ref);
4840 }
4841 bind_conf->keys_ref = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01004842 bind_conf->ca_sign_pass = NULL;
4843 bind_conf->ca_sign_file = NULL;
Willy Tarreau795cdab2016-12-22 17:30:54 +01004844}
4845
Christopher Faulet31af49d2015-06-09 17:29:50 +02004846/* Load CA cert file and private key used to generate certificates */
4847int
Willy Tarreau03209342016-12-22 17:08:28 +01004848ssl_sock_load_ca(struct bind_conf *bind_conf)
Christopher Faulet31af49d2015-06-09 17:29:50 +02004849{
Willy Tarreau03209342016-12-22 17:08:28 +01004850 struct proxy *px = bind_conf->frontend;
Shimi Gersner5846c492020-08-23 13:58:12 +03004851 struct cert_key_and_chain *ckch = NULL;
4852 int ret = 0;
4853 char *err = NULL;
Christopher Faulet31af49d2015-06-09 17:29:50 +02004854
Christopher Fauletf8bb0ce2017-09-15 09:52:49 +02004855 if (!bind_conf->generate_certs)
Shimi Gersner5846c492020-08-23 13:58:12 +03004856 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02004857
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01004858#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02004859 if (global_ssl.ctx_cache) {
Willy Tarreauef934602016-12-22 23:12:01 +01004860 ssl_ctx_lru_tree = lru64_new(global_ssl.ctx_cache);
Emeric Brun821bb9b2017-06-15 16:37:39 +02004861 }
Christopher Fauletd2cab922015-07-28 16:03:47 +02004862 ssl_ctx_lru_seed = (unsigned int)time(NULL);
Emeric Brun821bb9b2017-06-15 16:37:39 +02004863 ssl_ctx_serial = now_ms;
Willy Tarreaua84c2672015-10-09 12:10:13 +02004864#endif
Christopher Fauletd2cab922015-07-28 16:03:47 +02004865
Christopher Faulet31af49d2015-06-09 17:29:50 +02004866 if (!bind_conf->ca_sign_file) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01004867 ha_alert("Proxy '%s': cannot enable certificate generation, "
4868 "no CA certificate File configured at [%s:%d].\n",
4869 px->id, bind_conf->file, bind_conf->line);
Shimi Gersner5846c492020-08-23 13:58:12 +03004870 goto failed;
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02004871 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02004872
Shimi Gersner5846c492020-08-23 13:58:12 +03004873 /* Allocate cert structure */
Tim Duesterhuse52b6e52020-09-12 20:26:43 +02004874 ckch = calloc(1, sizeof(*ckch));
Shimi Gersner5846c492020-08-23 13:58:12 +03004875 if (!ckch) {
4876 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain allocation failure\n",
4877 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line);
4878 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02004879 }
Shimi Gersner5846c492020-08-23 13:58:12 +03004880
4881 /* Try to parse file */
4882 if (ssl_sock_load_files_into_ckch(bind_conf->ca_sign_file, ckch, &err)) {
4883 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain loading failed: %s\n",
4884 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line, err);
4885 if (err) free(err);
4886 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02004887 }
Shimi Gersner5846c492020-08-23 13:58:12 +03004888
4889 /* Fail if missing cert or pkey */
4890 if ((!ckch->cert) || (!ckch->key)) {
4891 ha_alert("Proxy '%s': Failed to read CA certificate file '%s' at [%s:%d]. Chain missing certificate or private key\n",
4892 px->id, bind_conf->ca_sign_file, bind_conf->file, bind_conf->line);
4893 goto failed;
Christopher Faulet31af49d2015-06-09 17:29:50 +02004894 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02004895
Shimi Gersner5846c492020-08-23 13:58:12 +03004896 /* Final assignment to bind */
4897 bind_conf->ca_sign_ckch = ckch;
4898 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02004899
Shimi Gersner5846c492020-08-23 13:58:12 +03004900 failed:
4901 if (ckch) {
4902 ssl_sock_free_cert_key_and_chain_contents(ckch);
4903 free(ckch);
4904 }
4905
Christopher Fauletc6f02fb2015-10-09 10:53:31 +02004906 bind_conf->generate_certs = 0;
Shimi Gersner5846c492020-08-23 13:58:12 +03004907 ret++;
4908 return ret;
Christopher Faulet31af49d2015-06-09 17:29:50 +02004909}
4910
4911/* Release CA cert and private key used to generate certificated */
4912void
4913ssl_sock_free_ca(struct bind_conf *bind_conf)
4914{
Shimi Gersner5846c492020-08-23 13:58:12 +03004915 if (bind_conf->ca_sign_ckch) {
4916 ssl_sock_free_cert_key_and_chain_contents(bind_conf->ca_sign_ckch);
4917 free(bind_conf->ca_sign_ckch);
4918 bind_conf->ca_sign_ckch = NULL;
4919 }
Christopher Faulet31af49d2015-06-09 17:29:50 +02004920}
4921
Emeric Brun46591952012-05-18 15:47:34 +02004922/*
4923 * This function is called if SSL * context is not yet allocated. The function
4924 * is designed to be called before any other data-layer operation and sets the
4925 * handshake flag on the connection. It is safe to call it multiple times.
4926 * It returns 0 on success and -1 in error case.
4927 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01004928static int ssl_sock_init(struct connection *conn, void **xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02004929{
Olivier Houchard66ab4982019-02-26 18:37:15 +01004930 struct ssl_sock_ctx *ctx;
Emeric Brun46591952012-05-18 15:47:34 +02004931 /* already initialized */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01004932 if (*xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02004933 return 0;
4934
Willy Tarreau3c728722014-01-23 13:50:42 +01004935 if (!conn_ctrl_ready(conn))
Willy Tarreauf79c8172013-10-21 16:30:56 +02004936 return 0;
4937
Olivier Houchard66ab4982019-02-26 18:37:15 +01004938 ctx = pool_alloc(ssl_sock_ctx_pool);
4939 if (!ctx) {
4940 conn->err_code = CO_ER_SSL_NO_MEM;
4941 return -1;
4942 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02004943 ctx->wait_event.tasklet = tasklet_new();
4944 if (!ctx->wait_event.tasklet) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02004945 conn->err_code = CO_ER_SSL_NO_MEM;
4946 pool_free(ssl_sock_ctx_pool, ctx);
4947 return -1;
4948 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02004949 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
4950 ctx->wait_event.tasklet->context = ctx;
Olivier Houchardea8dd942019-05-20 14:02:16 +02004951 ctx->wait_event.events = 0;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01004952 ctx->sent_early_data = 0;
Olivier Houchard54907bb2019-12-19 15:02:39 +01004953 ctx->early_buf = BUF_NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02004954 ctx->conn = conn;
Willy Tarreau113d52b2020-01-10 09:20:26 +01004955 ctx->subs = NULL;
Emeric Brun5762a0d2019-09-06 15:36:02 +02004956 ctx->xprt_st = 0;
4957 ctx->xprt_ctx = NULL;
Olivier Houcharda8955d52019-04-07 22:00:38 +02004958
4959 /* Only work with sockets for now, this should be adapted when we'll
4960 * add QUIC support.
4961 */
4962 ctx->xprt = xprt_get(XPRT_RAW);
Olivier Houchard19afb272019-05-23 18:24:07 +02004963 if (ctx->xprt->init) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02004964 if (ctx->xprt->init(conn, &ctx->xprt_ctx) != 0)
4965 goto err;
Olivier Houchard19afb272019-05-23 18:24:07 +02004966 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01004967
Willy Tarreau20879a02012-12-03 16:32:10 +01004968 if (global.maxsslconn && sslconns >= global.maxsslconn) {
4969 conn->err_code = CO_ER_SSL_TOO_MANY;
Olivier Houchardea8dd942019-05-20 14:02:16 +02004970 goto err;
Willy Tarreau20879a02012-12-03 16:32:10 +01004971 }
Willy Tarreau403edff2012-09-06 11:58:37 +02004972
Emeric Brun46591952012-05-18 15:47:34 +02004973 /* If it is in client mode initiate SSL session
4974 in connect state otherwise accept state */
Willy Tarreau3fdb3662012-11-12 00:42:33 +01004975 if (objt_server(conn->target)) {
Willy Tarreaufba03cd2014-11-13 13:48:58 +01004976 int may_retry = 1;
4977
4978 retry_connect:
Emeric Brun46591952012-05-18 15:47:34 +02004979 /* Alloc a new SSL session ctx */
Olivier Houchard66ab4982019-02-26 18:37:15 +01004980 ctx->ssl = SSL_new(__objt_server(conn->target)->ssl_ctx.ctx);
4981 if (!ctx->ssl) {
Willy Tarreaufba03cd2014-11-13 13:48:58 +01004982 if (may_retry--) {
Willy Tarreaubafbe012017-11-24 17:34:44 +01004983 pool_gc(NULL);
Willy Tarreaufba03cd2014-11-13 13:48:58 +01004984 goto retry_connect;
4985 }
Willy Tarreau20879a02012-12-03 16:32:10 +01004986 conn->err_code = CO_ER_SSL_NO_MEM;
Olivier Houchard66ab4982019-02-26 18:37:15 +01004987 goto err;
Willy Tarreau20879a02012-12-03 16:32:10 +01004988 }
Olivier Houcharda8955d52019-04-07 22:00:38 +02004989 ctx->bio = BIO_new(ha_meth);
4990 if (!ctx->bio) {
Olivier Houchardefe5e8e2020-01-24 15:17:38 +01004991 SSL_free(ctx->ssl);
4992 ctx->ssl = NULL;
Willy Tarreaufba03cd2014-11-13 13:48:58 +01004993 if (may_retry--) {
Willy Tarreaubafbe012017-11-24 17:34:44 +01004994 pool_gc(NULL);
Willy Tarreaufba03cd2014-11-13 13:48:58 +01004995 goto retry_connect;
4996 }
Emeric Brun55476152014-11-12 17:35:37 +01004997 conn->err_code = CO_ER_SSL_NO_MEM;
Olivier Houchard66ab4982019-02-26 18:37:15 +01004998 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01004999 }
Olivier Houcharda8955d52019-04-07 22:00:38 +02005000 BIO_set_data(ctx->bio, ctx);
Olivier Houcharda8955d52019-04-07 22:00:38 +02005001 SSL_set_bio(ctx->ssl, ctx->bio, ctx->bio);
Emeric Brun46591952012-05-18 15:47:34 +02005002
Evan Broderbe554312013-06-27 00:05:25 -07005003 /* set connection pointer */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005004 if (!SSL_set_ex_data(ctx->ssl, ssl_app_data_index, conn)) {
5005 SSL_free(ctx->ssl);
5006 ctx->ssl = NULL;
Emeric Brun55476152014-11-12 17:35:37 +01005007 conn->xprt_ctx = NULL;
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005008 if (may_retry--) {
Willy Tarreaubafbe012017-11-24 17:34:44 +01005009 pool_gc(NULL);
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005010 goto retry_connect;
5011 }
Emeric Brun55476152014-11-12 17:35:37 +01005012 conn->err_code = CO_ER_SSL_NO_MEM;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005013 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005014 }
5015
Olivier Houchard66ab4982019-02-26 18:37:15 +01005016 SSL_set_connect_state(ctx->ssl);
Willy Tarreau07d94e42018-09-20 10:57:52 +02005017 if (__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr) {
5018 const unsigned char *ptr = __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr;
5019 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 +01005020 if (sess && !SSL_set_session(ctx->ssl, sess)) {
Olivier Houcharde6060c52017-11-16 17:42:52 +01005021 SSL_SESSION_free(sess);
Willy Tarreau07d94e42018-09-20 10:57:52 +02005022 free(__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr);
5023 __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr = NULL;
Olivier Houcharde6060c52017-11-16 17:42:52 +01005024 } else if (sess) {
5025 SSL_SESSION_free(sess);
Emeric Brun55476152014-11-12 17:35:37 +01005026 }
5027 }
Evan Broderbe554312013-06-27 00:05:25 -07005028
Emeric Brun46591952012-05-18 15:47:34 +02005029 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005030 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Willy Tarreau403edff2012-09-06 11:58:37 +02005031
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01005032 _HA_ATOMIC_ADD(&sslconns, 1);
5033 _HA_ATOMIC_ADD(&totalsslconns, 1);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005034 *xprt_ctx = ctx;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005035 /* Start the handshake */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005036 tasklet_wakeup(ctx->wait_event.tasklet);
Emeric Brun46591952012-05-18 15:47:34 +02005037 return 0;
5038 }
Willy Tarreau3fdb3662012-11-12 00:42:33 +01005039 else if (objt_listener(conn->target)) {
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005040 int may_retry = 1;
5041
5042 retry_accept:
Emeric Brun46591952012-05-18 15:47:34 +02005043 /* Alloc a new SSL session ctx */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005044 ctx->ssl = SSL_new(__objt_listener(conn->target)->bind_conf->initial_ctx);
5045 if (!ctx->ssl) {
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005046 if (may_retry--) {
Willy Tarreaubafbe012017-11-24 17:34:44 +01005047 pool_gc(NULL);
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005048 goto retry_accept;
5049 }
Willy Tarreau20879a02012-12-03 16:32:10 +01005050 conn->err_code = CO_ER_SSL_NO_MEM;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005051 goto err;
Willy Tarreau20879a02012-12-03 16:32:10 +01005052 }
Olivier Houcharda8955d52019-04-07 22:00:38 +02005053 ctx->bio = BIO_new(ha_meth);
5054 if (!ctx->bio) {
Olivier Houchardefe5e8e2020-01-24 15:17:38 +01005055 SSL_free(ctx->ssl);
5056 ctx->ssl = NULL;
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005057 if (may_retry--) {
Willy Tarreaubafbe012017-11-24 17:34:44 +01005058 pool_gc(NULL);
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005059 goto retry_accept;
5060 }
Emeric Brun55476152014-11-12 17:35:37 +01005061 conn->err_code = CO_ER_SSL_NO_MEM;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005062 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005063 }
Olivier Houcharda8955d52019-04-07 22:00:38 +02005064 BIO_set_data(ctx->bio, ctx);
Olivier Houcharda8955d52019-04-07 22:00:38 +02005065 SSL_set_bio(ctx->ssl, ctx->bio, ctx->bio);
Emeric Brun46591952012-05-18 15:47:34 +02005066
Emeric Brune1f38db2012-09-03 20:36:47 +02005067 /* set connection pointer */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005068 if (!SSL_set_ex_data(ctx->ssl, ssl_app_data_index, conn)) {
5069 SSL_free(ctx->ssl);
5070 ctx->ssl = NULL;
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005071 if (may_retry--) {
Willy Tarreaubafbe012017-11-24 17:34:44 +01005072 pool_gc(NULL);
Willy Tarreaufba03cd2014-11-13 13:48:58 +01005073 goto retry_accept;
5074 }
Emeric Brun55476152014-11-12 17:35:37 +01005075 conn->err_code = CO_ER_SSL_NO_MEM;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005076 goto err;
Emeric Brun55476152014-11-12 17:35:37 +01005077 }
5078
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005079#ifdef SSL_READ_EARLY_DATA_SUCCESS
Frédéric Lécaille3139c1b2020-01-24 14:56:18 +01005080 if (__objt_listener(conn->target)->bind_conf->ssl_conf.early_data) {
5081 b_alloc(&ctx->early_buf);
5082 SSL_set_max_early_data(ctx->ssl,
5083 /* Only allow early data if we managed to allocate
5084 * a buffer.
5085 */
5086 (!b_is_null(&ctx->early_buf)) ?
5087 global.tune.bufsize - global.tune.maxrewrite : 0);
5088 }
5089#endif
5090
Olivier Houchard66ab4982019-02-26 18:37:15 +01005091 SSL_set_accept_state(ctx->ssl);
Emeric Brune1f38db2012-09-03 20:36:47 +02005092
Emeric Brun46591952012-05-18 15:47:34 +02005093 /* leave init state and start handshake */
Willy Tarreau05737472012-09-04 08:03:39 +02005094 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005095#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005096 conn->flags |= CO_FL_EARLY_SSL_HS;
5097#endif
Willy Tarreau403edff2012-09-06 11:58:37 +02005098
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01005099 _HA_ATOMIC_ADD(&sslconns, 1);
5100 _HA_ATOMIC_ADD(&totalsslconns, 1);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005101 *xprt_ctx = ctx;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005102 /* Start the handshake */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005103 tasklet_wakeup(ctx->wait_event.tasklet);
Emeric Brun46591952012-05-18 15:47:34 +02005104 return 0;
5105 }
5106 /* don't know how to handle such a target */
Willy Tarreau20879a02012-12-03 16:32:10 +01005107 conn->err_code = CO_ER_SSL_NO_TARGET;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005108err:
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005109 if (ctx && ctx->wait_event.tasklet)
5110 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01005111 pool_free(ssl_sock_ctx_pool, ctx);
Emeric Brun46591952012-05-18 15:47:34 +02005112 return -1;
5113}
5114
5115
5116/* This is the callback which is used when an SSL handshake is pending. It
5117 * updates the FD status if it wants some polling before being called again.
5118 * It returns 0 if it fails in a fatal way or needs to poll to go further,
5119 * otherwise it returns non-zero and removes itself from the connection's
5120 * flags (the bit is provided in <flag> by the caller).
5121 */
Olivier Houchard000694c2019-05-23 14:45:12 +02005122static int ssl_sock_handshake(struct connection *conn, unsigned int flag)
Emeric Brun46591952012-05-18 15:47:34 +02005123{
Olivier Houchard66ab4982019-02-26 18:37:15 +01005124 struct ssl_sock_ctx *ctx = conn->xprt_ctx;
Emeric Brun46591952012-05-18 15:47:34 +02005125 int ret;
Willy Tarreau42995282020-11-06 13:19:18 +01005126 struct ssl_counters *counters = NULL;
5127 struct ssl_counters *counters_px = NULL;
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005128 struct listener *li;
5129 struct server *srv;
Emeric Brun46591952012-05-18 15:47:34 +02005130
Willy Tarreau3c728722014-01-23 13:50:42 +01005131 if (!conn_ctrl_ready(conn))
Willy Tarreauf79c8172013-10-21 16:30:56 +02005132 return 0;
5133
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005134 /* get counters */
5135 switch (obj_type(conn->target)) {
5136 case OBJ_TYPE_LISTENER:
5137 li = objt_listener(conn->target);
5138 counters = EXTRA_COUNTERS_GET(li->extra_counters, &ssl_stats_module);
5139 counters_px = EXTRA_COUNTERS_GET(li->bind_conf->frontend->extra_counters_fe,
5140 &ssl_stats_module);
5141 break;
5142
5143 case OBJ_TYPE_SERVER:
5144 srv = objt_server(conn->target);
5145 counters = EXTRA_COUNTERS_GET(srv->extra_counters, &ssl_stats_module);
5146 counters_px = EXTRA_COUNTERS_GET(srv->proxy->extra_counters_be,
5147 &ssl_stats_module);
5148 break;
5149
5150 default:
5151 break;
5152 }
5153
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02005154 if (!conn->xprt_ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005155 goto out_error;
5156
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005157#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005158 /*
5159 * Check if we have early data. If we do, we have to read them
5160 * before SSL_do_handshake() is called, And there's no way to
5161 * detect early data, except to try to read them
5162 */
5163 if (conn->flags & CO_FL_EARLY_SSL_HS) {
Olivier Houchard54907bb2019-12-19 15:02:39 +01005164 size_t read_data = 0;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005165
Olivier Houchard54907bb2019-12-19 15:02:39 +01005166 while (1) {
5167 ret = SSL_read_early_data(ctx->ssl,
5168 b_tail(&ctx->early_buf), b_room(&ctx->early_buf),
5169 &read_data);
5170 if (ret == SSL_READ_EARLY_DATA_ERROR)
5171 goto check_error;
5172 if (read_data > 0) {
5173 conn->flags |= CO_FL_EARLY_DATA;
5174 b_add(&ctx->early_buf, read_data);
5175 }
5176 if (ret == SSL_READ_EARLY_DATA_FINISH) {
5177 conn->flags &= ~CO_FL_EARLY_SSL_HS;
5178 if (!b_data(&ctx->early_buf))
5179 b_free(&ctx->early_buf);
5180 break;
5181 }
5182 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02005183 }
5184#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005185 /* If we use SSL_do_handshake to process a reneg initiated by
5186 * the remote peer, it sometimes returns SSL_ERROR_SSL.
5187 * Usually SSL_write and SSL_read are used and process implicitly
5188 * the reneg handshake.
5189 * Here we use SSL_peek as a workaround for reneg.
5190 */
Willy Tarreauc192b0a2020-01-23 09:11:58 +01005191 if (!(conn->flags & CO_FL_WAIT_L6_CONN) && SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005192 char c;
5193
Olivier Houchard66ab4982019-02-26 18:37:15 +01005194 ret = SSL_peek(ctx->ssl, &c, 1);
Emeric Brun674b7432012-11-08 19:21:55 +01005195 if (ret <= 0) {
5196 /* handshake may have not been completed, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005197 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005198
Emeric Brun674b7432012-11-08 19:21:55 +01005199 if (ret == SSL_ERROR_WANT_WRITE) {
5200 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005201 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005202 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005203 return 0;
5204 }
5205 else if (ret == SSL_ERROR_WANT_READ) {
5206 /* handshake may have been completed but we have
5207 * no more data to read.
5208 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005209 if (!SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun674b7432012-11-08 19:21:55 +01005210 ret = 1;
5211 goto reneg_ok;
5212 }
5213 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005214 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005215 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun674b7432012-11-08 19:21:55 +01005216 return 0;
5217 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005218#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005219 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005220 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005221 return 0;
5222 }
5223#endif
Emeric Brun674b7432012-11-08 19:21:55 +01005224 else if (ret == SSL_ERROR_SYSCALL) {
5225 /* if errno is null, then connection was successfully established */
5226 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5227 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Willy Tarreau20879a02012-12-03 16:32:10 +01005228 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005229#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5230 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005231 conn->err_code = CO_ER_SSL_HANDSHAKE;
5232#else
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005233 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005234#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005235 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005236 OSSL_HANDSHAKE_STATE state = SSL_get_state((SSL *)ctx->ssl);
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005237 empty_handshake = state == TLS_ST_BEFORE;
5238#else
Lukas Tribus49799162019-07-08 14:29:15 +02005239 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5240 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005241#endif
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005242 if (empty_handshake) {
Emeric Brun29f037d2014-04-25 19:05:36 +02005243 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005244 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005245 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5246 else
5247 conn->err_code = CO_ER_SSL_EMPTY;
5248 }
5249 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005250 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005251 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5252 else
5253 conn->err_code = CO_ER_SSL_ABORT;
5254 }
5255 }
5256 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005257 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005258 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
Willy Tarreau20879a02012-12-03 16:32:10 +01005259 else
Emeric Brun29f037d2014-04-25 19:05:36 +02005260 conn->err_code = CO_ER_SSL_HANDSHAKE;
5261 }
Lukas Tribus49799162019-07-08 14:29:15 +02005262#endif /* BoringSSL or LibreSSL */
Willy Tarreau20879a02012-12-03 16:32:10 +01005263 }
Emeric Brun674b7432012-11-08 19:21:55 +01005264 goto out_error;
5265 }
5266 else {
5267 /* Fail on all other handshake errors */
5268 /* Note: OpenSSL may leave unread bytes in the socket's
5269 * buffer, causing an RST to be emitted upon close() on
5270 * TCP sockets. We first try to drain possibly pending
5271 * data to avoid this as much as possible.
5272 */
Willy Tarreaud85c4852015-03-13 00:40:28 +01005273 conn_sock_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005274 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005275 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005276 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun674b7432012-11-08 19:21:55 +01005277 goto out_error;
5278 }
5279 }
5280 /* read some data: consider handshake completed */
5281 goto reneg_ok;
5282 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005283 ret = SSL_do_handshake(ctx->ssl);
Olivier Houchardc2aae742017-09-22 18:26:28 +02005284check_error:
Emeric Brun46591952012-05-18 15:47:34 +02005285 if (ret != 1) {
5286 /* handshake did not complete, let's find why */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005287 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005288
5289 if (ret == SSL_ERROR_WANT_WRITE) {
5290 /* SSL handshake needs to write, L4 connection may not be ready */
Olivier Houchard03abf2d2019-05-28 10:12:02 +02005291 if (!(ctx->wait_event.events & SUB_RETRY_SEND))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005292 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005293 return 0;
5294 }
5295 else if (ret == SSL_ERROR_WANT_READ) {
5296 /* SSL handshake needs to read, L4 connection is ready */
Olivier Houchardea8dd942019-05-20 14:02:16 +02005297 if (!(ctx->wait_event.events & SUB_RETRY_RECV))
Olivier Houchardea8dd942019-05-20 14:02:16 +02005298 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
5299 SUB_RETRY_RECV, &ctx->wait_event);
Emeric Brun46591952012-05-18 15:47:34 +02005300 return 0;
5301 }
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005302#ifdef SSL_MODE_ASYNC
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005303 else if (ret == SSL_ERROR_WANT_ASYNC) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005304 ssl_async_process_fds(ctx);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005305 return 0;
5306 }
5307#endif
Willy Tarreau89230192012-09-28 20:22:13 +02005308 else if (ret == SSL_ERROR_SYSCALL) {
5309 /* if errno is null, then connection was successfully established */
5310 if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
5311 conn->flags &= ~CO_FL_WAIT_L4_CONN;
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005312 if (!conn->err_code) {
Lukas Tribus49799162019-07-08 14:29:15 +02005313#if defined(OPENSSL_IS_BORINGSSL) || defined(LIBRESSL_VERSION_NUMBER)
5314 /* do not handle empty handshakes in BoringSSL or LibreSSL */
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005315 conn->err_code = CO_ER_SSL_HANDSHAKE;
5316#else
5317 int empty_handshake;
Willy Tarreau5db847a2019-05-09 14:13:35 +02005318#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL)
Lukas Tribus49799162019-07-08 14:29:15 +02005319 /* use SSL_get_state() in OpenSSL >= 1.1.0; SSL_state() is broken */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005320 OSSL_HANDSHAKE_STATE state = SSL_get_state(ctx->ssl);
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005321 empty_handshake = state == TLS_ST_BEFORE;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005322#else
Lukas Tribus49799162019-07-08 14:29:15 +02005323 /* access packet_length directly in OpenSSL <= 1.0.2; SSL_state() is broken */
5324 empty_handshake = !ctx->ssl->packet_length;
Dirkjan Bussink1866d6d2016-08-29 13:26:37 +02005325#endif
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005326 if (empty_handshake) {
5327 if (!errno) {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005328 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005329 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5330 else
5331 conn->err_code = CO_ER_SSL_EMPTY;
5332 }
5333 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005334 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005335 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5336 else
5337 conn->err_code = CO_ER_SSL_ABORT;
5338 }
Emeric Brun29f037d2014-04-25 19:05:36 +02005339 }
5340 else {
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005341 if (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
Emeric Brun29f037d2014-04-25 19:05:36 +02005342 conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
5343 else
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01005344 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun29f037d2014-04-25 19:05:36 +02005345 }
Lukas Tribus49799162019-07-08 14:29:15 +02005346#endif /* BoringSSL or LibreSSL */
Emeric Brun29f037d2014-04-25 19:05:36 +02005347 }
Willy Tarreau89230192012-09-28 20:22:13 +02005348 goto out_error;
5349 }
Emeric Brun46591952012-05-18 15:47:34 +02005350 else {
5351 /* Fail on all other handshake errors */
Willy Tarreau566dc552012-10-19 20:52:18 +02005352 /* Note: OpenSSL may leave unread bytes in the socket's
5353 * buffer, causing an RST to be emitted upon close() on
5354 * TCP sockets. We first try to drain possibly pending
5355 * data to avoid this as much as possible.
5356 */
Willy Tarreaud85c4852015-03-13 00:40:28 +01005357 conn_sock_drain(conn);
Willy Tarreau20879a02012-12-03 16:32:10 +01005358 if (!conn->err_code)
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005359 conn->err_code = (ctx->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
Willy Tarreauf51c6982014-04-25 20:02:39 +02005360 CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005361 goto out_error;
5362 }
5363 }
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005364#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard522eea72017-11-03 16:27:47 +01005365 else {
5366 /*
5367 * If the server refused the early data, we have to send a
5368 * 425 to the client, as we no longer have the data to sent
5369 * them again.
5370 */
5371 if ((conn->flags & CO_FL_EARLY_DATA) && (objt_server(conn->target))) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005372 if (SSL_get_early_data_status(ctx->ssl) == SSL_EARLY_DATA_REJECTED) {
Olivier Houchard522eea72017-11-03 16:27:47 +01005373 conn->err_code = CO_ER_SSL_EARLY_FAILED;
5374 goto out_error;
5375 }
5376 }
5377 }
5378#endif
5379
Emeric Brun46591952012-05-18 15:47:34 +02005380
Emeric Brun674b7432012-11-08 19:21:55 +01005381reneg_ok:
Emeric Brunb5e42a82017-06-06 12:35:14 +00005382
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005383#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005384 /* ASYNC engine API doesn't support moving read/write
5385 * buffers. So we disable ASYNC mode right after
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05005386 * the handshake to avoid buffer overflow.
Emeric Brunb5e42a82017-06-06 12:35:14 +00005387 */
5388 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005389 SSL_clear_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005390#endif
Emeric Brun46591952012-05-18 15:47:34 +02005391 /* Handshake succeeded */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005392 if (!SSL_session_reused(ctx->ssl)) {
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005393 if (objt_server(conn->target)) {
5394 update_freq_ctr(&global.ssl_be_keys_per_sec, 1);
5395 if (global.ssl_be_keys_per_sec.curr_ctr > global.ssl_be_keys_max)
5396 global.ssl_be_keys_max = global.ssl_be_keys_per_sec.curr_ctr;
Emeric Brun46591952012-05-18 15:47:34 +02005397 }
Willy Tarreau0c9c2722014-05-28 12:28:58 +02005398 else {
5399 update_freq_ctr(&global.ssl_fe_keys_per_sec, 1);
5400 if (global.ssl_fe_keys_per_sec.curr_ctr > global.ssl_fe_keys_max)
5401 global.ssl_fe_keys_max = global.ssl_fe_keys_per_sec.curr_ctr;
5402 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005403
Willy Tarreau42995282020-11-06 13:19:18 +01005404 if (counters) {
5405 ++counters->sess;
5406 ++counters_px->sess;
5407 }
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005408 }
Willy Tarreau42995282020-11-06 13:19:18 +01005409 else if (counters) {
Amaury Denoyelled0447a72020-11-03 17:10:02 +01005410 ++counters->reused_sess;
5411 ++counters_px->reused_sess;
Emeric Brun46591952012-05-18 15:47:34 +02005412 }
5413
5414 /* The connection is now established at both layers, it's time to leave */
5415 conn->flags &= ~(flag | CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN);
5416 return 1;
5417
5418 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01005419 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005420 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005421 ERR_clear_error();
5422
Emeric Brun9fa89732012-10-04 17:09:56 +02005423 /* free resumed session if exists */
Willy Tarreau07d94e42018-09-20 10:57:52 +02005424 if (objt_server(conn->target) && __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr) {
5425 free(__objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr);
5426 __objt_server(conn->target)->ssl_ctx.reused_sess[tid].ptr = NULL;
Emeric Brun9fa89732012-10-04 17:09:56 +02005427 }
5428
Amaury Denoyelle034c1622020-11-13 16:05:00 +01005429 if (counters) {
5430 ++counters->failed_handshake;
5431 ++counters_px->failed_handshake;
5432 }
5433
Emeric Brun46591952012-05-18 15:47:34 +02005434 /* Fail on all other handshake errors */
5435 conn->flags |= CO_FL_ERROR;
Willy Tarreau20879a02012-12-03 16:32:10 +01005436 if (!conn->err_code)
5437 conn->err_code = CO_ER_SSL_HANDSHAKE;
Emeric Brun46591952012-05-18 15:47:34 +02005438 return 0;
5439}
5440
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005441/* Called from the upper layer, to subscribe <es> to events <event_type>. The
5442 * event subscriber <es> is not allowed to change from a previous call as long
5443 * as at least one event is still subscribed. The <event_type> must only be a
5444 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0,
5445 * unless the transport layer was already released.
5446 */
5447static int ssl_subscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005448{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005449 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005450
Olivier Houchard0ff28652019-06-24 18:57:39 +02005451 if (!ctx)
5452 return -1;
5453
Willy Tarreau113d52b2020-01-10 09:20:26 +01005454 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005455 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005456
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005457 ctx->subs = es;
5458 es->events |= event_type;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005459
5460 /* we may have to subscribe to lower layers for new events */
5461 event_type &= ~ctx->wait_event.events;
5462 if (event_type && !(conn->flags & CO_FL_SSL_WAIT_HS))
5463 ctx->xprt->subscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005464 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005465}
5466
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005467/* Called from the upper layer, to unsubscribe <es> from events <event_type>.
5468 * The <es> pointer is not allowed to differ from the one passed to the
5469 * subscribe() call. It always returns zero.
5470 */
5471static int ssl_unsubscribe(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es)
Olivier Houcharddf357842019-03-21 16:30:07 +01005472{
Olivier Houchardea8dd942019-05-20 14:02:16 +02005473 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005474
Willy Tarreau113d52b2020-01-10 09:20:26 +01005475 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005476 BUG_ON(ctx->subs && ctx->subs != es);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005477
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01005478 es->events &= ~event_type;
5479 if (!es->events)
Willy Tarreau113d52b2020-01-10 09:20:26 +01005480 ctx->subs = NULL;
5481
5482 /* If we subscribed, and we're not doing the handshake,
5483 * then we subscribed because the upper layer asked for it,
5484 * as the upper layer is no longer interested, we can
5485 * unsubscribe too.
5486 */
5487 event_type &= ctx->wait_event.events;
5488 if (event_type && !(ctx->conn->flags & CO_FL_SSL_WAIT_HS))
5489 conn_unsubscribe(conn, ctx->xprt_ctx, event_type, &ctx->wait_event);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005490
5491 return 0;
Olivier Houcharddf357842019-03-21 16:30:07 +01005492}
5493
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005494/* The connection has been taken over, so destroy the old tasklet and create
5495 * a new one. The original thread ID must be passed into orig_tid
5496 * It should be called with the takeover lock for the old thread held.
5497 * Returns 0 on success, and -1 on failure
5498 */
5499static int ssl_takeover(struct connection *conn, void *xprt_ctx, int orig_tid)
5500{
5501 struct ssl_sock_ctx *ctx = xprt_ctx;
5502 struct tasklet *tl = tasklet_new();
5503
5504 if (!tl)
5505 return -1;
5506
5507 ctx->wait_event.tasklet->context = NULL;
5508 tasklet_wakeup_on(ctx->wait_event.tasklet, orig_tid);
5509 ctx->wait_event.tasklet = tl;
5510 ctx->wait_event.tasklet->process = ssl_sock_io_cb;
5511 ctx->wait_event.tasklet->context = ctx;
5512 return 0;
5513}
5514
Olivier Houchard2e055482019-05-27 19:50:12 +02005515/* Use the provided XPRT as an underlying XPRT, and provide the old one.
5516 * Returns 0 on success, and non-zero on failure.
5517 */
5518static 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)
5519{
5520 struct ssl_sock_ctx *ctx = xprt_ctx;
5521
5522 if (oldxprt_ops != NULL)
5523 *oldxprt_ops = ctx->xprt;
5524 if (oldxprt_ctx != NULL)
5525 *oldxprt_ctx = ctx->xprt_ctx;
5526 ctx->xprt = toadd_ops;
5527 ctx->xprt_ctx = toadd_ctx;
5528 return 0;
5529}
5530
Olivier Houchard5149b592019-05-23 17:47:36 +02005531/* Remove the specified xprt. If if it our underlying XPRT, remove it and
5532 * return 0, otherwise just call the remove_xprt method from the underlying
5533 * XPRT.
5534 */
5535static int ssl_remove_xprt(struct connection *conn, void *xprt_ctx, void *toremove_ctx, const struct xprt_ops *newops, void *newctx)
5536{
5537 struct ssl_sock_ctx *ctx = xprt_ctx;
5538
5539 if (ctx->xprt_ctx == toremove_ctx) {
5540 ctx->xprt_ctx = newctx;
5541 ctx->xprt = newops;
5542 return 0;
5543 }
5544 return (ctx->xprt->remove_xprt(conn, ctx->xprt_ctx, toremove_ctx, newops, newctx));
5545}
5546
Olivier Houchardea8dd942019-05-20 14:02:16 +02005547static struct task *ssl_sock_io_cb(struct task *t, void *context, unsigned short state)
5548{
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005549 struct tasklet *tl = (struct tasklet *)t;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005550 struct ssl_sock_ctx *ctx = context;
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005551 struct connection *conn;
5552 int conn_in_list;
5553 int ret = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005554
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005555 HA_SPIN_LOCK(OTHER_LOCK, &idle_conns[tid].takeover_lock);
5556 if (tl->context == NULL) {
5557 HA_SPIN_UNLOCK(OTHER_LOCK, &idle_conns[tid].takeover_lock);
5558 tasklet_free(tl);
5559 return NULL;
5560 }
5561 conn = ctx->conn;
5562 conn_in_list = conn->flags & CO_FL_LIST_MASK;
5563 if (conn_in_list)
5564 MT_LIST_DEL(&conn->list);
5565 HA_SPIN_UNLOCK(OTHER_LOCK, &idle_conns[tid].takeover_lock);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005566 /* First if we're doing an handshake, try that */
5567 if (ctx->conn->flags & CO_FL_SSL_WAIT_HS)
5568 ssl_sock_handshake(ctx->conn, CO_FL_SSL_WAIT_HS);
5569 /* If we had an error, or the handshake is done and I/O is available,
5570 * let the upper layer know.
Olivier Houchard477902b2020-01-22 18:08:48 +01005571 * If no mux was set up yet, then call conn_create_mux()
Olivier Houchardea8dd942019-05-20 14:02:16 +02005572 * we can't be sure conn_fd_handler() will be called again.
5573 */
5574 if ((ctx->conn->flags & CO_FL_ERROR) ||
5575 !(ctx->conn->flags & CO_FL_SSL_WAIT_HS)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005576 int woke = 0;
5577
5578 /* On error, wake any waiter */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005579 if (ctx->subs) {
5580 tasklet_wakeup(ctx->subs->tasklet);
5581 ctx->subs->events = 0;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005582 woke = 1;
Willy Tarreau113d52b2020-01-10 09:20:26 +01005583 ctx->subs = NULL;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005584 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01005585
Olivier Houchardea8dd942019-05-20 14:02:16 +02005586 /* If we're the first xprt for the connection, let the
Olivier Houchard477902b2020-01-22 18:08:48 +01005587 * upper layers know. If we have no mux, create it,
5588 * and once we have a mux, call its wake method if we didn't
5589 * woke a tasklet already.
Olivier Houchardea8dd942019-05-20 14:02:16 +02005590 */
5591 if (ctx->conn->xprt_ctx == ctx) {
Olivier Houchard477902b2020-01-22 18:08:48 +01005592 if (!ctx->conn->mux)
5593 ret = conn_create_mux(ctx->conn);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005594 if (ret >= 0 && !woke && ctx->conn->mux && ctx->conn->mux->wake)
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005595 ret = ctx->conn->mux->wake(ctx->conn);
5596 goto leave;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005597 }
5598 }
Olivier Houchard54907bb2019-12-19 15:02:39 +01005599#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
5600 /* If we have early data and somebody wants to receive, let them */
Willy Tarreau113d52b2020-01-10 09:20:26 +01005601 else if (b_data(&ctx->early_buf) && ctx->subs &&
5602 ctx->subs->events & SUB_RETRY_RECV) {
5603 tasklet_wakeup(ctx->subs->tasklet);
5604 ctx->subs->events &= ~SUB_RETRY_RECV;
5605 if (!ctx->subs->events)
5606 ctx->subs = NULL;
Olivier Houchard54907bb2019-12-19 15:02:39 +01005607 }
5608#endif
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005609leave:
5610 if (!ret && conn_in_list) {
5611 struct server *srv = objt_server(conn->target);
5612
5613 if (conn_in_list == CO_FL_SAFE_LIST)
Willy Tarreaua9d7b762020-07-10 08:28:20 +02005614 MT_LIST_ADDQ(&srv->safe_conns[tid], &conn->list);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005615 else
Willy Tarreaua9d7b762020-07-10 08:28:20 +02005616 MT_LIST_ADDQ(&srv->idle_conns[tid], &conn->list);
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02005617 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02005618 return NULL;
5619}
5620
Emeric Brun46591952012-05-18 15:47:34 +02005621/* Receive up to <count> bytes from connection <conn>'s socket and store them
Willy Tarreauabf08d92014-01-14 11:31:27 +01005622 * into buffer <buf>. Only one call to recv() is performed, unless the
Emeric Brun46591952012-05-18 15:47:34 +02005623 * buffer wraps, in which case a second call may be performed. The connection's
5624 * flags are updated with whatever special event is detected (error, read0,
5625 * empty). The caller is responsible for taking care of those events and
5626 * avoiding the call if inappropriate. The function does not call the
5627 * connection's polling update function, so the caller is responsible for this.
5628 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005629static 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 +02005630{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005631 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreaubfc4d772018-07-18 11:22:03 +02005632 ssize_t ret;
5633 size_t try, done = 0;
Emeric Brun46591952012-05-18 15:47:34 +02005634
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005635 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005636 goto out_error;
5637
Olivier Houchard54907bb2019-12-19 15:02:39 +01005638#if (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
5639 if (b_data(&ctx->early_buf)) {
5640 try = b_contig_space(buf);
5641 if (try > b_data(&ctx->early_buf))
5642 try = b_data(&ctx->early_buf);
5643 memcpy(b_tail(buf), b_head(&ctx->early_buf), try);
5644 b_add(buf, try);
5645 b_del(&ctx->early_buf, try);
5646 if (b_data(&ctx->early_buf) == 0)
5647 b_free(&ctx->early_buf);
5648 return try;
5649 }
5650#endif
5651
Willy Tarreau911db9b2020-01-23 16:27:54 +01005652 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02005653 /* a handshake was requested */
5654 return 0;
5655
Emeric Brun46591952012-05-18 15:47:34 +02005656 /* read the largest possible block. For this, we perform only one call
5657 * to recv() unless the buffer wraps and we exactly fill the first hunk,
5658 * in which case we accept to do it once again. A new attempt is made on
5659 * EINTR too.
5660 */
Willy Tarreau00b0fb92014-01-17 11:09:40 +01005661 while (count > 0) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02005662
Willy Tarreau591d4452018-06-15 17:21:00 +02005663 try = b_contig_space(buf);
5664 if (!try)
5665 break;
5666
Willy Tarreauabf08d92014-01-14 11:31:27 +01005667 if (try > count)
5668 try = count;
Willy Tarreau591d4452018-06-15 17:21:00 +02005669
Olivier Houchard66ab4982019-02-26 18:37:15 +01005670 ret = SSL_read(ctx->ssl, b_tail(buf), try);
Emmanuel Hocdetf967c312019-08-05 18:04:16 +02005671
Emeric Brune1f38db2012-09-03 20:36:47 +02005672 if (conn->flags & CO_FL_ERROR) {
5673 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01005674 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02005675 }
Emeric Brun46591952012-05-18 15:47:34 +02005676 if (ret > 0) {
Olivier Houchardacd14032018-06-28 18:17:23 +02005677 b_add(buf, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005678 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02005679 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02005680 }
Emeric Brun46591952012-05-18 15:47:34 +02005681 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005682 ret = SSL_get_error(ctx->ssl, ret);
Emeric Brun46591952012-05-18 15:47:34 +02005683 if (ret == SSL_ERROR_WANT_WRITE) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01005684 /* handshake is running, and it needs to enable write */
Emeric Brun46591952012-05-18 15:47:34 +02005685 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005686 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005687#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005688 /* Async mode can be re-enabled, because we're leaving data state.*/
5689 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005690 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005691#endif
Emeric Brun46591952012-05-18 15:47:34 +02005692 break;
5693 }
5694 else if (ret == SSL_ERROR_WANT_READ) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005695 if (SSL_renegotiate_pending(ctx->ssl)) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005696 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
5697 SUB_RETRY_RECV,
5698 &ctx->wait_event);
Emeric Brun282a76a2012-11-08 18:02:56 +01005699 /* handshake is running, and it may need to re-enable read */
5700 conn->flags |= CO_FL_SSL_WAIT_HS;
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005701#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005702 /* Async mode can be re-enabled, because we're leaving data state.*/
5703 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005704 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005705#endif
Emeric Brun282a76a2012-11-08 18:02:56 +01005706 break;
5707 }
Emeric Brun46591952012-05-18 15:47:34 +02005708 break;
Olivier Houchardc2aae742017-09-22 18:26:28 +02005709 } else if (ret == SSL_ERROR_ZERO_RETURN)
5710 goto read0;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01005711 /* For SSL_ERROR_SYSCALL, make sure to clear the error
5712 * stack before shutting down the connection for
5713 * reading. */
Olivier Houchard7e2e5052018-02-13 15:17:23 +01005714 if (ret == SSL_ERROR_SYSCALL && (!errno || errno == EAGAIN))
5715 goto clear_ssl_error;
Emeric Brun46591952012-05-18 15:47:34 +02005716 /* otherwise it's a real error */
5717 goto out_error;
5718 }
5719 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005720 leave:
Emeric Brun46591952012-05-18 15:47:34 +02005721 return done;
5722
Christopher Faulet4ac77a92018-02-19 14:25:15 +01005723 clear_ssl_error:
5724 /* Clear openssl global errors stack */
5725 ssl_sock_dump_errors(conn);
5726 ERR_clear_error();
Emeric Brun46591952012-05-18 15:47:34 +02005727 read0:
5728 conn_sock_read0(conn);
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005729 goto leave;
Christopher Faulet4ac77a92018-02-19 14:25:15 +01005730
Emeric Brun46591952012-05-18 15:47:34 +02005731 out_error:
Olivier Houchard7e2e5052018-02-13 15:17:23 +01005732 conn->flags |= CO_FL_ERROR;
Emeric Brun644cde02012-12-14 11:21:13 +01005733 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005734 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005735 ERR_clear_error();
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005736 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02005737}
5738
5739
Willy Tarreau787db9a2018-06-14 18:31:46 +02005740/* Send up to <count> pending bytes from buffer <buf> to connection <conn>'s
5741 * socket. <flags> may contain some CO_SFL_* flags to hint the system about
5742 * other pending data for example, but this flag is ignored at the moment.
Emeric Brun46591952012-05-18 15:47:34 +02005743 * Only one call to send() is performed, unless the buffer wraps, in which case
5744 * a second call may be performed. The connection's flags are updated with
5745 * whatever special event is detected (error, empty). The caller is responsible
5746 * for taking care of those events and avoiding the call if inappropriate. The
5747 * function does not call the connection's polling update function, so the caller
Willy Tarreau787db9a2018-06-14 18:31:46 +02005748 * is responsible for this. The buffer's output is not adjusted, it's up to the
5749 * caller to take care of this. It's up to the caller to update the buffer's
5750 * contents based on the return value.
Emeric Brun46591952012-05-18 15:47:34 +02005751 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005752static 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 +02005753{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005754 struct ssl_sock_ctx *ctx = xprt_ctx;
Willy Tarreau787db9a2018-06-14 18:31:46 +02005755 ssize_t ret;
5756 size_t try, done;
Emeric Brun46591952012-05-18 15:47:34 +02005757
5758 done = 0;
5759
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005760 if (!ctx)
Emeric Brun46591952012-05-18 15:47:34 +02005761 goto out_error;
5762
Willy Tarreau911db9b2020-01-23 16:27:54 +01005763 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS | CO_FL_EARLY_SSL_HS))
Emeric Brun46591952012-05-18 15:47:34 +02005764 /* a handshake was requested */
5765 return 0;
5766
5767 /* send the largest possible block. For this we perform only one call
5768 * to send() unless the buffer wraps and we exactly fill the first hunk,
5769 * in which case we accept to do it once again.
5770 */
Willy Tarreau787db9a2018-06-14 18:31:46 +02005771 while (count) {
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005772#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchardc2aae742017-09-22 18:26:28 +02005773 size_t written_data;
5774#endif
5775
Willy Tarreau787db9a2018-06-14 18:31:46 +02005776 try = b_contig_data(buf, done);
5777 if (try > count)
5778 try = count;
Willy Tarreaubfd59462013-02-21 07:46:09 +01005779
Willy Tarreau7bed9452014-02-02 02:00:24 +01005780 if (!(flags & CO_SFL_STREAMER) &&
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005781 !(ctx->xprt_st & SSL_SOCK_SEND_UNLIMITED) &&
Willy Tarreauef934602016-12-22 23:12:01 +01005782 global_ssl.max_record && try > global_ssl.max_record) {
5783 try = global_ssl.max_record;
Willy Tarreau518cedd2014-02-17 15:43:01 +01005784 }
5785 else {
5786 /* we need to keep the information about the fact that
5787 * we're not limiting the upcoming send(), because if it
5788 * fails, we'll have to retry with at least as many data.
5789 */
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005790 ctx->xprt_st |= SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau518cedd2014-02-17 15:43:01 +01005791 }
Willy Tarreaubfd59462013-02-21 07:46:09 +01005792
Ilya Shipitsinb9b84a42020-10-24 23:42:30 +05005793#ifdef SSL_READ_EARLY_DATA_SUCCESS
Olivier Houchard010941f2019-05-03 20:56:19 +02005794 if (!SSL_is_init_finished(ctx->ssl) && conn_is_back(conn)) {
Olivier Houchardc2aae742017-09-22 18:26:28 +02005795 unsigned int max_early;
5796
Olivier Houchard522eea72017-11-03 16:27:47 +01005797 if (objt_listener(conn->target))
Olivier Houchard66ab4982019-02-26 18:37:15 +01005798 max_early = SSL_get_max_early_data(ctx->ssl);
Olivier Houchard522eea72017-11-03 16:27:47 +01005799 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005800 if (SSL_get0_session(ctx->ssl))
5801 max_early = SSL_SESSION_get_max_early_data(SSL_get0_session(ctx->ssl));
Olivier Houchard522eea72017-11-03 16:27:47 +01005802 else
5803 max_early = 0;
5804 }
5805
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005806 if (try + ctx->sent_early_data > max_early) {
5807 try -= (try + ctx->sent_early_data) - max_early;
Olivier Houchard522eea72017-11-03 16:27:47 +01005808 if (try <= 0) {
Olivier Houchard010941f2019-05-03 20:56:19 +02005809 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
Olivier Houchard965e84e2019-06-15 20:59:30 +02005810 tasklet_wakeup(ctx->wait_event.tasklet);
Olivier Houchardc2aae742017-09-22 18:26:28 +02005811 break;
Olivier Houchard522eea72017-11-03 16:27:47 +01005812 }
Olivier Houchardc2aae742017-09-22 18:26:28 +02005813 }
Olivier Houchard66ab4982019-02-26 18:37:15 +01005814 ret = SSL_write_early_data(ctx->ssl, b_peek(buf, done), try, &written_data);
Olivier Houchardc2aae742017-09-22 18:26:28 +02005815 if (ret == 1) {
5816 ret = written_data;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005817 ctx->sent_early_data += ret;
Olivier Houchard965e84e2019-06-15 20:59:30 +02005818 if (objt_server(conn->target)) {
Olivier Houchard522eea72017-11-03 16:27:47 +01005819 conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN | CO_FL_EARLY_DATA;
Olivier Houchard965e84e2019-06-15 20:59:30 +02005820 /* Initiate the handshake, now */
5821 tasklet_wakeup(ctx->wait_event.tasklet);
5822 }
Olivier Houchard522eea72017-11-03 16:27:47 +01005823
Olivier Houchardc2aae742017-09-22 18:26:28 +02005824 }
5825
5826 } else
5827#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01005828 ret = SSL_write(ctx->ssl, b_peek(buf, done), try);
Willy Tarreau518cedd2014-02-17 15:43:01 +01005829
Emeric Brune1f38db2012-09-03 20:36:47 +02005830 if (conn->flags & CO_FL_ERROR) {
5831 /* CO_FL_ERROR may be set by ssl_sock_infocbk */
Emeric Brun644cde02012-12-14 11:21:13 +01005832 goto out_error;
Emeric Brune1f38db2012-09-03 20:36:47 +02005833 }
Emeric Brun46591952012-05-18 15:47:34 +02005834 if (ret > 0) {
Willy Tarreauc192b0a2020-01-23 09:11:58 +01005835 /* A send succeeded, so we can consider ourself connected */
5836 conn->flags &= ~CO_FL_WAIT_L4L6;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01005837 ctx->xprt_st &= ~SSL_SOCK_SEND_UNLIMITED;
Willy Tarreau787db9a2018-06-14 18:31:46 +02005838 count -= ret;
Emeric Brun46591952012-05-18 15:47:34 +02005839 done += ret;
Emeric Brun46591952012-05-18 15:47:34 +02005840 }
5841 else {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005842 ret = SSL_get_error(ctx->ssl, ret);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005843
Emeric Brun46591952012-05-18 15:47:34 +02005844 if (ret == SSL_ERROR_WANT_WRITE) {
Olivier Houchard66ab4982019-02-26 18:37:15 +01005845 if (SSL_renegotiate_pending(ctx->ssl)) {
Emeric Brun282a76a2012-11-08 18:02:56 +01005846 /* handshake is running, and it may need to re-enable write */
5847 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005848 ctx->xprt->subscribe(conn, ctx->xprt_ctx, SUB_RETRY_SEND, &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005849#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005850 /* Async mode can be re-enabled, because we're leaving data state.*/
5851 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005852 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005853#endif
Emeric Brun282a76a2012-11-08 18:02:56 +01005854 break;
5855 }
Olivier Houchardea8dd942019-05-20 14:02:16 +02005856
Emeric Brun46591952012-05-18 15:47:34 +02005857 break;
5858 }
5859 else if (ret == SSL_ERROR_WANT_READ) {
Emeric Brun8af8dd12012-11-08 17:56:20 +01005860 /* handshake is running, and it needs to enable read */
Emeric Brun46591952012-05-18 15:47:34 +02005861 conn->flags |= CO_FL_SSL_WAIT_HS;
Olivier Houchardea8dd942019-05-20 14:02:16 +02005862 ctx->xprt->subscribe(conn, ctx->xprt_ctx,
5863 SUB_RETRY_RECV,
5864 &ctx->wait_event);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005865#ifdef SSL_MODE_ASYNC
Emeric Brunb5e42a82017-06-06 12:35:14 +00005866 /* Async mode can be re-enabled, because we're leaving data state.*/
5867 if (global_ssl.async)
Olivier Houchard66ab4982019-02-26 18:37:15 +01005868 SSL_set_mode(ctx->ssl, SSL_MODE_ASYNC);
Emeric Brunb5e42a82017-06-06 12:35:14 +00005869#endif
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005870 break;
5871 }
Emeric Brun46591952012-05-18 15:47:34 +02005872 goto out_error;
5873 }
5874 }
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005875 leave:
Emeric Brun46591952012-05-18 15:47:34 +02005876 return done;
5877
5878 out_error:
Emeric Brun644cde02012-12-14 11:21:13 +01005879 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005880 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005881 ERR_clear_error();
5882
Emeric Brun46591952012-05-18 15:47:34 +02005883 conn->flags |= CO_FL_ERROR;
Willy Tarreau31d4dbe2017-10-25 09:32:15 +02005884 goto leave;
Emeric Brun46591952012-05-18 15:47:34 +02005885}
5886
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005887static void ssl_sock_close(struct connection *conn, void *xprt_ctx) {
Emeric Brun46591952012-05-18 15:47:34 +02005888
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005889 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005890
Olivier Houchardea8dd942019-05-20 14:02:16 +02005891
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005892 if (ctx) {
Olivier Houchardea8dd942019-05-20 14:02:16 +02005893 if (ctx->wait_event.events != 0)
5894 ctx->xprt->unsubscribe(ctx->conn, ctx->xprt_ctx,
5895 ctx->wait_event.events,
5896 &ctx->wait_event);
Willy Tarreau113d52b2020-01-10 09:20:26 +01005897 if (ctx->subs) {
5898 ctx->subs->events = 0;
5899 tasklet_wakeup(ctx->subs->tasklet);
Olivier Houchardea8dd942019-05-20 14:02:16 +02005900 }
Willy Tarreau113d52b2020-01-10 09:20:26 +01005901
Olivier Houchard692c1d02019-05-23 18:41:47 +02005902 if (ctx->xprt->close)
5903 ctx->xprt->close(conn, ctx->xprt_ctx);
Ilya Shipitsinbdec3ba2020-11-14 01:56:34 +05005904#ifdef SSL_MODE_ASYNC
Emeric Brun3854e012017-05-17 20:42:48 +02005905 if (global_ssl.async) {
5906 OSSL_ASYNC_FD all_fd[32], afd;
5907 size_t num_all_fds = 0;
5908 int i;
5909
Olivier Houchard66ab4982019-02-26 18:37:15 +01005910 SSL_get_all_async_fds(ctx->ssl, NULL, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02005911 if (num_all_fds > 32) {
5912 send_log(NULL, LOG_EMERG, "haproxy: openssl returns too many async fds. It seems a bug. Process may crash\n");
5913 return;
5914 }
5915
Olivier Houchard66ab4982019-02-26 18:37:15 +01005916 SSL_get_all_async_fds(ctx->ssl, all_fd, &num_all_fds);
Emeric Brun3854e012017-05-17 20:42:48 +02005917
5918 /* If an async job is pending, we must try to
5919 to catch the end using polling before calling
5920 SSL_free */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005921 if (num_all_fds && SSL_waiting_for_async(ctx->ssl)) {
Emeric Brun3854e012017-05-17 20:42:48 +02005922 for (i=0 ; i < num_all_fds ; i++) {
5923 /* switch on an handler designed to
5924 * handle the SSL_free
5925 */
5926 afd = all_fd[i];
5927 fdtab[afd].iocb = ssl_async_fd_free;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005928 fdtab[afd].owner = ctx->ssl;
Emeric Brun3854e012017-05-17 20:42:48 +02005929 fd_want_recv(afd);
Emeric Brunce9e01c2017-05-31 10:02:53 +00005930 /* To ensure that the fd cache won't be used
5931 * and we'll catch a real RD event.
5932 */
5933 fd_cant_recv(afd);
Emeric Brun3854e012017-05-17 20:42:48 +02005934 }
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005935 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01005936 pool_free(ssl_sock_ctx_pool, ctx);
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01005937 _HA_ATOMIC_ADD(&jobs, 1);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005938 return;
5939 }
Emeric Brun3854e012017-05-17 20:42:48 +02005940 /* Else we can remove the fds from the fdtab
5941 * and call SSL_free.
Willy Tarreau67672452020-08-26 11:44:17 +02005942 * note: we do a fd_stop_both and not a delete
Emeric Brun3854e012017-05-17 20:42:48 +02005943 * because the fd is owned by the engine.
5944 * the engine is responsible to close
5945 */
5946 for (i=0 ; i < num_all_fds ; i++)
Willy Tarreau67672452020-08-26 11:44:17 +02005947 fd_stop_both(all_fd[i]);
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00005948 }
5949#endif
Olivier Houchard66ab4982019-02-26 18:37:15 +01005950 SSL_free(ctx->ssl);
Olivier Houchard54907bb2019-12-19 15:02:39 +01005951 b_free(&ctx->early_buf);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02005952 tasklet_free(ctx->wait_event.tasklet);
Olivier Houchard66ab4982019-02-26 18:37:15 +01005953 pool_free(ssl_sock_ctx_pool, ctx);
Olivier Houchard2be5a4c2019-03-08 18:54:43 +01005954 _HA_ATOMIC_SUB(&sslconns, 1);
Emeric Brun46591952012-05-18 15:47:34 +02005955 }
Emeric Brun46591952012-05-18 15:47:34 +02005956}
5957
5958/* This function tries to perform a clean shutdown on an SSL connection, and in
5959 * any case, flags the connection as reusable if no handshake was in progress.
5960 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005961static void ssl_sock_shutw(struct connection *conn, void *xprt_ctx, int clean)
Emeric Brun46591952012-05-18 15:47:34 +02005962{
Olivier Houcharde179d0e2019-03-21 18:27:17 +01005963 struct ssl_sock_ctx *ctx = xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01005964
Willy Tarreau911db9b2020-01-23 16:27:54 +01005965 if (conn->flags & (CO_FL_WAIT_XPRT | CO_FL_SSL_WAIT_HS))
Emeric Brun46591952012-05-18 15:47:34 +02005966 return;
Emmanuel Hocdet405ff312017-01-08 14:07:39 +01005967 if (!clean)
5968 /* don't sent notify on SSL_shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005969 SSL_set_quiet_shutdown(ctx->ssl, 1);
Emeric Brun46591952012-05-18 15:47:34 +02005970 /* no handshake was in progress, try a clean ssl shutdown */
Olivier Houchard66ab4982019-02-26 18:37:15 +01005971 if (SSL_shutdown(ctx->ssl) <= 0) {
Emeric Brun644cde02012-12-14 11:21:13 +01005972 /* Clear openssl global errors stack */
Thierry FOURNIER / OZON.IO8b068c22016-10-10 11:59:50 +02005973 ssl_sock_dump_errors(conn);
Emeric Brun644cde02012-12-14 11:21:13 +01005974 ERR_clear_error();
5975 }
Emeric Brun46591952012-05-18 15:47:34 +02005976}
5977
Emmanuel Hocdet96b78342017-10-31 15:46:07 +01005978
Ilya Shipitsin77e3b4a2020-03-10 12:06:11 +05005979/* used for ppv2 pkey algo (can be used for logging) */
William Lallemandd4f946c2019-12-05 10:26:40 +01005980int ssl_sock_get_pkey_algo(struct connection *conn, struct buffer *out)
5981{
5982 struct ssl_sock_ctx *ctx;
5983 X509 *crt;
5984
5985 if (!ssl_sock_is_ssl(conn))
5986 return 0;
5987
5988 ctx = conn->xprt_ctx;
5989
5990 crt = SSL_get_certificate(ctx->ssl);
5991 if (!crt)
5992 return 0;
5993
5994 return cert_get_pkey_algo(crt, out);
5995}
5996
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01005997/* used for ppv2 cert signature (can be used for logging) */
5998const char *ssl_sock_get_cert_sig(struct connection *conn)
5999{
Christopher Faulet82004142019-09-10 10:12:03 +02006000 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006001
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006002 __OPENSSL_110_CONST__ ASN1_OBJECT *algorithm;
6003 X509 *crt;
6004
6005 if (!ssl_sock_is_ssl(conn))
6006 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006007 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006008 crt = SSL_get_certificate(ctx->ssl);
Emmanuel Hocdet283e0042017-11-02 14:05:23 +01006009 if (!crt)
6010 return NULL;
6011 X509_ALGOR_get0(&algorithm, NULL, NULL, X509_get0_tbs_sigalg(crt));
6012 return OBJ_nid2sn(OBJ_obj2nid(algorithm));
6013}
6014
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006015/* used for ppv2 authority */
6016const char *ssl_sock_get_sni(struct connection *conn)
6017{
6018#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006019 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006020
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006021 if (!ssl_sock_is_ssl(conn))
6022 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006023 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006024 return SSL_get_servername(ctx->ssl, TLSEXT_NAMETYPE_host_name);
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006025#else
Olivier Houchard66ab4982019-02-26 18:37:15 +01006026 return NULL;
Emmanuel Hocdet253c3b72018-02-01 18:29:59 +01006027#endif
6028}
6029
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006030/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006031const char *ssl_sock_get_cipher_name(struct connection *conn)
6032{
Christopher Faulet82004142019-09-10 10:12:03 +02006033 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006034
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006035 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006036 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006037 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006038 return SSL_get_cipher_name(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006039}
6040
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006041/* used for logging/ppv2, may be changed for a sample fetch later */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006042const char *ssl_sock_get_proto_version(struct connection *conn)
6043{
Christopher Faulet82004142019-09-10 10:12:03 +02006044 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006045
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02006046 if (!ssl_sock_is_ssl(conn))
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006047 return NULL;
Christopher Faulet82004142019-09-10 10:12:03 +02006048 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006049 return SSL_get_version(ctx->ssl);
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02006050}
6051
Olivier Houchardab28a322018-12-21 19:45:40 +01006052void ssl_sock_set_alpn(struct connection *conn, const unsigned char *alpn, int len)
6053{
6054#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Christopher Faulet82004142019-09-10 10:12:03 +02006055 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006056
Olivier Houcharde488ea82019-06-28 14:10:33 +02006057 if (!ssl_sock_is_ssl(conn))
6058 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006059 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006060 SSL_set_alpn_protos(ctx->ssl, alpn, len);
Olivier Houchardab28a322018-12-21 19:45:40 +01006061#endif
6062}
6063
Willy Tarreau119a4082016-12-22 21:58:38 +01006064/* Sets advertised SNI for outgoing connections. Please set <hostname> to NULL
6065 * to disable SNI.
6066 */
Willy Tarreau63076412015-07-10 11:33:32 +02006067void ssl_sock_set_servername(struct connection *conn, const char *hostname)
6068{
6069#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
Christopher Faulet82004142019-09-10 10:12:03 +02006070 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006071
Willy Tarreau119a4082016-12-22 21:58:38 +01006072 char *prev_name;
6073
Willy Tarreau63076412015-07-10 11:33:32 +02006074 if (!ssl_sock_is_ssl(conn))
6075 return;
Christopher Faulet82004142019-09-10 10:12:03 +02006076 ctx = conn->xprt_ctx;
Willy Tarreau63076412015-07-10 11:33:32 +02006077
Willy Tarreau119a4082016-12-22 21:58:38 +01006078 /* if the SNI changes, we must destroy the reusable context so that a
6079 * new connection will present a new SNI. As an optimization we could
6080 * later imagine having a small cache of ssl_ctx to hold a few SNI per
6081 * server.
6082 */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006083 prev_name = (char *)SSL_get_servername(ctx->ssl, TLSEXT_NAMETYPE_host_name);
Willy Tarreau119a4082016-12-22 21:58:38 +01006084 if ((!prev_name && hostname) ||
6085 (prev_name && (!hostname || strcmp(hostname, prev_name) != 0)))
Olivier Houchard66ab4982019-02-26 18:37:15 +01006086 SSL_set_session(ctx->ssl, NULL);
Willy Tarreau119a4082016-12-22 21:58:38 +01006087
Olivier Houchard66ab4982019-02-26 18:37:15 +01006088 SSL_set_tlsext_host_name(ctx->ssl, hostname);
Willy Tarreau63076412015-07-10 11:33:32 +02006089#endif
6090}
6091
Emeric Brun0abf8362014-06-24 18:26:41 +02006092/* Extract peer certificate's common name into the chunk dest
6093 * Returns
6094 * the len of the extracted common name
6095 * or 0 if no CN found in DN
6096 * or -1 on error case (i.e. no peer certificate)
6097 */
Willy Tarreau83061a82018-07-13 11:56:34 +02006098int ssl_sock_get_remote_common_name(struct connection *conn,
6099 struct buffer *dest)
David Safb76832014-05-08 23:42:08 -04006100{
Christopher Faulet82004142019-09-10 10:12:03 +02006101 struct ssl_sock_ctx *ctx;
David Safb76832014-05-08 23:42:08 -04006102 X509 *crt = NULL;
6103 X509_NAME *name;
David Safb76832014-05-08 23:42:08 -04006104 const char find_cn[] = "CN";
Willy Tarreau83061a82018-07-13 11:56:34 +02006105 const struct buffer find_cn_chunk = {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02006106 .area = (char *)&find_cn,
6107 .data = sizeof(find_cn)-1
David Safb76832014-05-08 23:42:08 -04006108 };
Emeric Brun0abf8362014-06-24 18:26:41 +02006109 int result = -1;
David Safb76832014-05-08 23:42:08 -04006110
6111 if (!ssl_sock_is_ssl(conn))
Emeric Brun0abf8362014-06-24 18:26:41 +02006112 goto out;
Christopher Faulet82004142019-09-10 10:12:03 +02006113 ctx = conn->xprt_ctx;
David Safb76832014-05-08 23:42:08 -04006114
6115 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006116 crt = SSL_get_peer_certificate(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006117 if (!crt)
6118 goto out;
6119
6120 name = X509_get_subject_name(crt);
6121 if (!name)
6122 goto out;
David Safb76832014-05-08 23:42:08 -04006123
Emeric Brun0abf8362014-06-24 18:26:41 +02006124 result = ssl_sock_get_dn_entry(name, &find_cn_chunk, 1, dest);
6125out:
David Safb76832014-05-08 23:42:08 -04006126 if (crt)
6127 X509_free(crt);
6128
6129 return result;
6130}
6131
Dave McCowan328fb582014-07-30 10:39:13 -04006132/* returns 1 if client passed a certificate for this session, 0 if not */
6133int ssl_sock_get_cert_used_sess(struct connection *conn)
6134{
Christopher Faulet82004142019-09-10 10:12:03 +02006135 struct ssl_sock_ctx *ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006136 X509 *crt = NULL;
6137
6138 if (!ssl_sock_is_ssl(conn))
6139 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006140 ctx = conn->xprt_ctx;
Dave McCowan328fb582014-07-30 10:39:13 -04006141
6142 /* SSL_get_peer_certificate, it increase X509 * ref count */
Olivier Houchard66ab4982019-02-26 18:37:15 +01006143 crt = SSL_get_peer_certificate(ctx->ssl);
Dave McCowan328fb582014-07-30 10:39:13 -04006144 if (!crt)
6145 return 0;
6146
6147 X509_free(crt);
6148 return 1;
6149}
6150
6151/* returns 1 if client passed a certificate for this connection, 0 if not */
6152int ssl_sock_get_cert_used_conn(struct connection *conn)
David Safb76832014-05-08 23:42:08 -04006153{
Christopher Faulet82004142019-09-10 10:12:03 +02006154 struct ssl_sock_ctx *ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006155
David Safb76832014-05-08 23:42:08 -04006156 if (!ssl_sock_is_ssl(conn))
6157 return 0;
Christopher Faulet82004142019-09-10 10:12:03 +02006158 ctx = conn->xprt_ctx;
Olivier Houchard7b5fd1e2019-02-28 18:10:45 +01006159 return SSL_SOCK_ST_FL_VERIFY_DONE & ctx->xprt_st ? 1 : 0;
David Safb76832014-05-08 23:42:08 -04006160}
6161
6162/* returns result from SSL verify */
6163unsigned int ssl_sock_get_verify_result(struct connection *conn)
6164{
Christopher Faulet82004142019-09-10 10:12:03 +02006165 struct ssl_sock_ctx *ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006166
David Safb76832014-05-08 23:42:08 -04006167 if (!ssl_sock_is_ssl(conn))
6168 return (unsigned int)X509_V_ERR_APPLICATION_VERIFICATION;
Christopher Faulet82004142019-09-10 10:12:03 +02006169 ctx = conn->xprt_ctx;
Olivier Houchard66ab4982019-02-26 18:37:15 +01006170 return (unsigned int)SSL_get_verify_result(ctx->ssl);
David Safb76832014-05-08 23:42:08 -04006171}
6172
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006173/* Returns the application layer protocol name in <str> and <len> when known.
6174 * Zero is returned if the protocol name was not found, otherwise non-zero is
6175 * returned. The string is allocated in the SSL context and doesn't have to be
6176 * freed by the caller. NPN is also checked if available since older versions
6177 * of openssl (1.0.1) which are more common in field only support this one.
6178 */
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006179static int ssl_sock_get_alpn(const struct connection *conn, void *xprt_ctx, const char **str, int *len)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006180{
Olivier Houchard66ab4982019-02-26 18:37:15 +01006181#if defined(TLSEXT_TYPE_application_layer_protocol_negotiation) || \
6182 defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006183 struct ssl_sock_ctx *ctx = xprt_ctx;
6184 if (!ctx)
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006185 return 0;
6186
6187 *str = NULL;
6188
6189#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
Olivier Houchard66ab4982019-02-26 18:37:15 +01006190 SSL_get0_alpn_selected(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006191 if (*str)
6192 return 1;
6193#endif
Bernard Spil13c53f82018-02-15 13:34:58 +01006194#if defined(OPENSSL_NPN_NEGOTIATED) && !defined(OPENSSL_NO_NEXTPROTONEG)
Olivier Houchard66ab4982019-02-26 18:37:15 +01006195 SSL_get0_next_proto_negotiated(ctx->ssl, (const unsigned char **)str, (unsigned *)len);
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006196 if (*str)
6197 return 1;
6198#endif
Olivier Houcharde179d0e2019-03-21 18:27:17 +01006199#endif
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006200 return 0;
6201}
6202
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006203/* "issuers-chain-path" load chain certificate in global */
William Lallemanddad31052020-05-14 17:47:32 +02006204int ssl_load_global_issuer_from_BIO(BIO *in, char *fp, char **err)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006205{
6206 X509 *ca;
6207 X509_NAME *name = NULL;
6208 ASN1_OCTET_STRING *skid = NULL;
6209 STACK_OF(X509) *chain = NULL;
6210 struct issuer_chain *issuer;
6211 struct eb64_node *node;
6212 char *path;
6213 u64 key;
6214 int ret = 0;
6215
6216 while ((ca = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
6217 if (chain == NULL) {
6218 chain = sk_X509_new_null();
6219 skid = X509_get_ext_d2i(ca, NID_subject_key_identifier, NULL, NULL);
6220 name = X509_get_subject_name(ca);
6221 }
6222 if (!sk_X509_push(chain, ca)) {
6223 X509_free(ca);
6224 goto end;
6225 }
6226 }
6227 if (!chain) {
6228 memprintf(err, "unable to load issuers-chain %s : pem certificate not found.\n", fp);
6229 goto end;
6230 }
6231 if (!skid) {
6232 memprintf(err, "unable to load issuers-chain %s : SubjectKeyIdentifier not found.\n", fp);
6233 goto end;
6234 }
6235 if (!name) {
6236 memprintf(err, "unable to load issuers-chain %s : SubjectName not found.\n", fp);
6237 goto end;
6238 }
6239 key = XXH64(ASN1_STRING_get0_data(skid), ASN1_STRING_length(skid), 0);
William Lallemande0f3fd52020-02-25 14:53:06 +01006240 for (node = eb64_lookup(&cert_issuer_tree, key); node; node = eb64_next(node)) {
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006241 issuer = container_of(node, typeof(*issuer), node);
6242 if (!X509_NAME_cmp(name, X509_get_subject_name(sk_X509_value(issuer->chain, 0)))) {
6243 memprintf(err, "duplicate issuers-chain %s: %s already in store\n", fp, issuer->path);
6244 goto end;
6245 }
6246 }
6247 issuer = calloc(1, sizeof *issuer);
6248 path = strdup(fp);
6249 if (!issuer || !path) {
6250 free(issuer);
6251 free(path);
6252 goto end;
6253 }
6254 issuer->node.key = key;
6255 issuer->path = path;
6256 issuer->chain = chain;
6257 chain = NULL;
William Lallemande0f3fd52020-02-25 14:53:06 +01006258 eb64_insert(&cert_issuer_tree, &issuer->node);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006259 ret = 1;
6260 end:
6261 if (skid)
6262 ASN1_OCTET_STRING_free(skid);
6263 if (chain)
6264 sk_X509_pop_free(chain, X509_free);
6265 return ret;
6266}
6267
William Lallemandda8584c2020-05-14 10:14:37 +02006268 struct issuer_chain* ssl_get0_issuer_chain(X509 *cert)
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006269{
6270 AUTHORITY_KEYID *akid;
6271 struct issuer_chain *issuer = NULL;
6272
6273 akid = X509_get_ext_d2i(cert, NID_authority_key_identifier, NULL, NULL);
William Lallemandf69cd682020-11-19 16:24:13 +01006274 if (akid && akid->keyid) {
Emmanuel Hocdet75a7aa12020-02-18 15:19:24 +01006275 struct eb64_node *node;
6276 u64 hk;
6277 hk = XXH64(ASN1_STRING_get0_data(akid->keyid), ASN1_STRING_length(akid->keyid), 0);
6278 for (node = eb64_lookup(&cert_issuer_tree, hk); node; node = eb64_next(node)) {
6279 struct issuer_chain *ti = container_of(node, typeof(*issuer), node);
6280 if (X509_check_issued(sk_X509_value(ti->chain, 0), cert) == X509_V_OK) {
6281 issuer = ti;
6282 break;
6283 }
6284 }
6285 AUTHORITY_KEYID_free(akid);
6286 }
6287 return issuer;
6288}
6289
William Lallemanddad31052020-05-14 17:47:32 +02006290void ssl_free_global_issuers(void)
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006291{
6292 struct eb64_node *node, *back;
6293 struct issuer_chain *issuer;
6294
William Lallemande0f3fd52020-02-25 14:53:06 +01006295 node = eb64_first(&cert_issuer_tree);
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006296 while (node) {
6297 issuer = container_of(node, typeof(*issuer), node);
6298 back = eb64_next(node);
6299 eb64_delete(node);
6300 free(issuer->path);
6301 sk_X509_pop_free(issuer->chain, X509_free);
6302 free(issuer);
6303 node = back;
6304 }
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006305}
6306
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006307#ifndef OPENSSL_NO_ENGINE
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006308static int ssl_check_async_engine_count(void) {
Christopher Fauletfc633b62020-11-06 15:24:23 +01006309 int err_code = ERR_NONE;
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006310
Emeric Brun3854e012017-05-17 20:42:48 +02006311 if (global_ssl.async && (openssl_engines_initialized > 32)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01006312 ha_alert("ssl-mode-async only supports a maximum of 32 engines.\n");
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006313 err_code = ERR_ABORT;
6314 }
6315 return err_code;
Willy Tarreau8c3b0fd2016-12-21 22:44:46 +01006316}
Willy Tarreau9ceda382016-12-21 23:13:03 +01006317#endif
6318
William Lallemand32af2032016-10-29 18:09:35 +02006319/* This function is used with TLS ticket keys management. It permits to browse
6320 * each reference. The variable <getnext> must contain the current node,
6321 * <end> point to the root node.
6322 */
6323#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6324static inline
6325struct tls_keys_ref *tlskeys_list_get_next(struct tls_keys_ref *getnext, struct list *end)
6326{
6327 struct tls_keys_ref *ref = getnext;
6328
6329 while (1) {
6330
6331 /* Get next list entry. */
6332 ref = LIST_NEXT(&ref->list, struct tls_keys_ref *, list);
6333
6334 /* If the entry is the last of the list, return NULL. */
6335 if (&ref->list == end)
6336 return NULL;
6337
6338 return ref;
6339 }
6340}
6341
6342static inline
6343struct tls_keys_ref *tlskeys_ref_lookup_ref(const char *reference)
6344{
6345 int id;
6346 char *error;
6347
6348 /* If the reference starts by a '#', this is numeric id. */
6349 if (reference[0] == '#') {
6350 /* Try to convert the numeric id. If the conversion fails, the lookup fails. */
6351 id = strtol(reference + 1, &error, 10);
6352 if (*error != '\0')
6353 return NULL;
6354
6355 /* Perform the unique id lookup. */
6356 return tlskeys_ref_lookupid(id);
6357 }
6358
6359 /* Perform the string lookup. */
6360 return tlskeys_ref_lookup(reference);
6361}
6362#endif
6363
6364
6365#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6366
6367static int cli_io_handler_tlskeys_files(struct appctx *appctx);
6368
6369static inline int cli_io_handler_tlskeys_entries(struct appctx *appctx) {
6370 return cli_io_handler_tlskeys_files(appctx);
6371}
6372
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006373/* dumps all tls keys. Relies on cli.i0 (non-null = only list file names), cli.i1
6374 * (next index to be dumped), and cli.p0 (next key reference).
6375 */
William Lallemand32af2032016-10-29 18:09:35 +02006376static int cli_io_handler_tlskeys_files(struct appctx *appctx) {
6377
6378 struct stream_interface *si = appctx->owner;
6379
6380 switch (appctx->st2) {
6381 case STAT_ST_INIT:
6382 /* Display the column headers. If the message cannot be sent,
Joseph Herlant017b3da2018-11-15 09:07:59 -08006383 * quit the function with returning 0. The function is called
William Lallemand32af2032016-10-29 18:09:35 +02006384 * later and restart at the state "STAT_ST_INIT".
6385 */
6386 chunk_reset(&trash);
6387
6388 if (appctx->io_handler == cli_io_handler_tlskeys_entries)
6389 chunk_appendf(&trash, "# id secret\n");
6390 else
6391 chunk_appendf(&trash, "# id (file)\n");
6392
Willy Tarreau06d80a92017-10-19 14:32:15 +02006393 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01006394 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006395 return 0;
6396 }
6397
William Lallemand32af2032016-10-29 18:09:35 +02006398 /* Now, we start the browsing of the references lists.
6399 * Note that the following call to LIST_ELEM return bad pointer. The only
6400 * available field of this pointer is <list>. It is used with the function
6401 * tlskeys_list_get_next() for retruning the first available entry
6402 */
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006403 if (appctx->ctx.cli.p0 == NULL) {
6404 appctx->ctx.cli.p0 = LIST_ELEM(&tlskeys_reference, struct tls_keys_ref *, list);
6405 appctx->ctx.cli.p0 = tlskeys_list_get_next(appctx->ctx.cli.p0, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006406 }
6407
6408 appctx->st2 = STAT_ST_LIST;
6409 /* fall through */
6410
6411 case STAT_ST_LIST:
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006412 while (appctx->ctx.cli.p0) {
6413 struct tls_keys_ref *ref = appctx->ctx.cli.p0;
William Lallemand32af2032016-10-29 18:09:35 +02006414
6415 chunk_reset(&trash);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006416 if (appctx->io_handler == cli_io_handler_tlskeys_entries && appctx->ctx.cli.i1 == 0)
William Lallemand32af2032016-10-29 18:09:35 +02006417 chunk_appendf(&trash, "# ");
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006418
6419 if (appctx->ctx.cli.i1 == 0)
6420 chunk_appendf(&trash, "%d (%s)\n", ref->unique_id, ref->filename);
6421
William Lallemand32af2032016-10-29 18:09:35 +02006422 if (appctx->io_handler == cli_io_handler_tlskeys_entries) {
Christopher Faulet16f45c82018-02-16 11:23:49 +01006423 int head;
6424
6425 HA_RWLOCK_RDLOCK(TLSKEYS_REF_LOCK, &ref->lock);
6426 head = ref->tls_ticket_enc_index;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006427 while (appctx->ctx.cli.i1 < TLS_TICKETS_NO) {
Willy Tarreau83061a82018-07-13 11:56:34 +02006428 struct buffer *t2 = get_trash_chunk();
William Lallemand32af2032016-10-29 18:09:35 +02006429
6430 chunk_reset(t2);
6431 /* should never fail here because we dump only a key in the t2 buffer */
Emeric Brun9e754772019-01-10 17:51:55 +01006432 if (ref->key_size_bits == 128) {
6433 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6434 sizeof(struct tls_sess_key_128),
6435 t2->area, t2->size);
6436 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6437 t2->area);
6438 }
6439 else if (ref->key_size_bits == 256) {
6440 t2->data = a2base64((char *)(ref->tlskeys + (head + 2 + appctx->ctx.cli.i1) % TLS_TICKETS_NO),
6441 sizeof(struct tls_sess_key_256),
6442 t2->area, t2->size);
6443 chunk_appendf(&trash, "%d.%d %s\n", ref->unique_id, appctx->ctx.cli.i1,
6444 t2->area);
6445 }
6446 else {
6447 /* This case should never happen */
6448 chunk_appendf(&trash, "%d.%d <unknown>\n", ref->unique_id, appctx->ctx.cli.i1);
6449 }
William Lallemand32af2032016-10-29 18:09:35 +02006450
Willy Tarreau06d80a92017-10-19 14:32:15 +02006451 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006452 /* let's try again later from this stream. We add ourselves into
6453 * this stream's users so that it can remove us upon termination.
6454 */
Christopher Faulet16f45c82018-02-16 11:23:49 +01006455 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreaudb398432018-11-15 11:08:52 +01006456 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006457 return 0;
6458 }
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006459 appctx->ctx.cli.i1++;
William Lallemand32af2032016-10-29 18:09:35 +02006460 }
Christopher Faulet16f45c82018-02-16 11:23:49 +01006461 HA_RWLOCK_RDUNLOCK(TLSKEYS_REF_LOCK, &ref->lock);
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006462 appctx->ctx.cli.i1 = 0;
William Lallemand32af2032016-10-29 18:09:35 +02006463 }
Willy Tarreau06d80a92017-10-19 14:32:15 +02006464 if (ci_putchk(si_ic(si), &trash) == -1) {
William Lallemand32af2032016-10-29 18:09:35 +02006465 /* let's try again later from this stream. We add ourselves into
6466 * this stream's users so that it can remove us upon termination.
6467 */
Willy Tarreaudb398432018-11-15 11:08:52 +01006468 si_rx_room_blk(si);
William Lallemand32af2032016-10-29 18:09:35 +02006469 return 0;
6470 }
6471
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006472 if (appctx->ctx.cli.i0 == 0) /* don't display everything if not necessary */
William Lallemand32af2032016-10-29 18:09:35 +02006473 break;
6474
6475 /* get next list entry and check the end of the list */
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006476 appctx->ctx.cli.p0 = tlskeys_list_get_next(appctx->ctx.cli.p0, &tlskeys_reference);
William Lallemand32af2032016-10-29 18:09:35 +02006477 }
6478
6479 appctx->st2 = STAT_ST_FIN;
6480 /* fall through */
6481
6482 default:
6483 appctx->st2 = STAT_ST_FIN;
6484 return 1;
6485 }
6486 return 0;
6487}
6488
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006489/* sets cli.i0 to non-zero if only file lists should be dumped */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006490static int cli_parse_show_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006491{
William Lallemand32af2032016-10-29 18:09:35 +02006492 /* no parameter, shows only file list */
6493 if (!*args[2]) {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006494 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006495 appctx->io_handler = cli_io_handler_tlskeys_files;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006496 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006497 }
6498
6499 if (args[2][0] == '*') {
6500 /* list every TLS ticket keys */
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006501 appctx->ctx.cli.i0 = 1;
William Lallemand32af2032016-10-29 18:09:35 +02006502 } else {
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006503 appctx->ctx.cli.p0 = tlskeys_ref_lookup_ref(args[2]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006504 if (!appctx->ctx.cli.p0)
6505 return cli_err(appctx, "'show tls-keys' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006506 }
William Lallemand32af2032016-10-29 18:09:35 +02006507 appctx->io_handler = cli_io_handler_tlskeys_entries;
Willy Tarreau3067bfa2016-12-05 14:50:15 +01006508 return 0;
William Lallemand32af2032016-10-29 18:09:35 +02006509}
6510
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006511static int cli_parse_set_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006512{
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006513 struct tls_keys_ref *ref;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006514 int ret;
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006515
William Lallemand32af2032016-10-29 18:09:35 +02006516 /* Expect two parameters: the filename and the new new TLS key in encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006517 if (!*args[3] || !*args[4])
6518 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 +02006519
Willy Tarreauf5f26e82016-12-16 18:47:27 +01006520 ref = tlskeys_ref_lookup_ref(args[3]);
Willy Tarreau9d008692019-08-09 11:21:01 +02006521 if (!ref)
6522 return cli_err(appctx, "'set ssl tls-key' unable to locate referenced filename\n");
William Lallemand32af2032016-10-29 18:09:35 +02006523
Willy Tarreau1c913e42018-08-22 05:26:57 +02006524 ret = base64dec(args[4], strlen(args[4]), trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02006525 if (ret < 0)
6526 return cli_err(appctx, "'set ssl tls-key' received invalid base64 encoded TLS key.\n");
Emeric Brun9e754772019-01-10 17:51:55 +01006527
Willy Tarreau1c913e42018-08-22 05:26:57 +02006528 trash.data = ret;
Willy Tarreau9d008692019-08-09 11:21:01 +02006529 if (ssl_sock_update_tlskey_ref(ref, &trash) < 0)
6530 return cli_err(appctx, "'set ssl tls-key' received a key of wrong size.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006531
Willy Tarreau9d008692019-08-09 11:21:01 +02006532 return cli_msg(appctx, LOG_INFO, "TLS ticket key updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02006533}
William Lallemandd4f946c2019-12-05 10:26:40 +01006534#endif
William Lallemand419e6342020-04-08 12:05:39 +02006535
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02006536static int cli_parse_set_ocspresponse(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemand32af2032016-10-29 18:09:35 +02006537{
6538#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
6539 char *err = NULL;
Willy Tarreau1c913e42018-08-22 05:26:57 +02006540 int i, j, ret;
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006541
6542 if (!payload)
6543 payload = args[3];
William Lallemand32af2032016-10-29 18:09:35 +02006544
6545 /* Expect one parameter: the new response in base64 encoding */
Willy Tarreau9d008692019-08-09 11:21:01 +02006546 if (!*payload)
6547 return cli_err(appctx, "'set ssl ocsp-response' expects response in base64 encoding.\n");
Aurélien Nephtali1e0867c2018-04-18 14:04:58 +02006548
6549 /* remove \r and \n from the payload */
6550 for (i = 0, j = 0; payload[i]; i++) {
6551 if (payload[i] == '\r' || payload[i] == '\n')
6552 continue;
6553 payload[j++] = payload[i];
6554 }
6555 payload[j] = 0;
William Lallemand32af2032016-10-29 18:09:35 +02006556
Willy Tarreau1c913e42018-08-22 05:26:57 +02006557 ret = base64dec(payload, j, trash.area, trash.size);
Willy Tarreau9d008692019-08-09 11:21:01 +02006558 if (ret < 0)
6559 return cli_err(appctx, "'set ssl ocsp-response' received invalid base64 encoded response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006560
Willy Tarreau1c913e42018-08-22 05:26:57 +02006561 trash.data = ret;
William Lallemand32af2032016-10-29 18:09:35 +02006562 if (ssl_sock_update_ocsp_response(&trash, &err)) {
Willy Tarreau9d008692019-08-09 11:21:01 +02006563 if (err)
6564 return cli_dynerr(appctx, memprintf(&err, "%s.\n", err));
6565 else
6566 return cli_err(appctx, "Failed to update OCSP response.\n");
William Lallemand32af2032016-10-29 18:09:35 +02006567 }
Willy Tarreau9d008692019-08-09 11:21:01 +02006568
6569 return cli_msg(appctx, LOG_INFO, "OCSP Response updated!\n");
William Lallemand32af2032016-10-29 18:09:35 +02006570#else
Willy Tarreau9d008692019-08-09 11:21:01 +02006571 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 +02006572#endif
6573
Elliot Otchet71f82972020-01-15 08:12:14 -05006574}
6575
William Lallemand32af2032016-10-29 18:09:35 +02006576/* register cli keywords */
6577static struct cli_kw_list cli_kws = {{ },{
6578#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6579 { { "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 +02006580 { { "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 +02006581#endif
Emmanuel Hocdetfdec7892017-01-13 17:48:18 +01006582 { { "set", "ssl", "ocsp-response", NULL }, NULL, cli_parse_set_ocspresponse, NULL },
William Lallemand32af2032016-10-29 18:09:35 +02006583 { { NULL }, NULL, NULL, NULL }
6584}};
6585
Willy Tarreau0108d902018-11-25 19:14:37 +01006586INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
William Lallemand32af2032016-10-29 18:09:35 +02006587
Willy Tarreauf7bc57c2012-10-03 00:19:48 +02006588/* transport-layer operations for SSL sockets */
William Lallemanddad31052020-05-14 17:47:32 +02006589struct xprt_ops ssl_sock = {
Emeric Brun46591952012-05-18 15:47:34 +02006590 .snd_buf = ssl_sock_from_buf,
6591 .rcv_buf = ssl_sock_to_buf,
Olivier Houcharddf357842019-03-21 16:30:07 +01006592 .subscribe = ssl_subscribe,
6593 .unsubscribe = ssl_unsubscribe,
Olivier Houchard5149b592019-05-23 17:47:36 +02006594 .remove_xprt = ssl_remove_xprt,
Olivier Houchard2e055482019-05-27 19:50:12 +02006595 .add_xprt = ssl_add_xprt,
Emeric Brun46591952012-05-18 15:47:34 +02006596 .rcv_pipe = NULL,
6597 .snd_pipe = NULL,
6598 .shutr = NULL,
6599 .shutw = ssl_sock_shutw,
6600 .close = ssl_sock_close,
6601 .init = ssl_sock_init,
Willy Tarreau55d37912016-12-21 23:38:39 +01006602 .prepare_bind_conf = ssl_sock_prepare_bind_conf,
Willy Tarreau795cdab2016-12-22 17:30:54 +01006603 .destroy_bind_conf = ssl_sock_destroy_bind_conf,
Willy Tarreau17d45382016-12-22 21:16:08 +01006604 .prepare_srv = ssl_sock_prepare_srv_ctx,
6605 .destroy_srv = ssl_sock_free_srv_ctx,
Willy Tarreau8743f7e2016-12-04 18:44:29 +01006606 .get_alpn = ssl_sock_get_alpn,
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02006607 .takeover = ssl_takeover,
Willy Tarreau8e0bb0a2016-11-24 16:58:12 +01006608 .name = "SSL",
Emeric Brun46591952012-05-18 15:47:34 +02006609};
6610
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006611enum act_return ssl_action_wait_for_hs(struct act_rule *rule, struct proxy *px,
6612 struct session *sess, struct stream *s, int flags)
6613{
6614 struct connection *conn;
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006615 struct conn_stream *cs;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006616
6617 conn = objt_conn(sess->origin);
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006618 cs = objt_cs(s->si[0].end);
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006619
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006620 if (conn && cs) {
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006621 if (conn->flags & (CO_FL_EARLY_SSL_HS | CO_FL_SSL_WAIT_HS)) {
Olivier Houchard6fa63d92017-11-27 18:41:32 +01006622 cs->flags |= CS_FL_WAIT_FOR_HS;
Olivier Houchardccaa7de2017-10-02 11:51:03 +02006623 s->req.flags |= CF_READ_NULL;
6624 return ACT_RET_YIELD;
6625 }
6626 }
6627 return (ACT_RET_CONT);
6628}
6629
6630static enum act_parse_ret ssl_parse_wait_for_hs(const char **args, int *orig_arg, struct proxy *px, struct act_rule *rule, char **err)
6631{
6632 rule->action_ptr = ssl_action_wait_for_hs;
6633
6634 return ACT_RET_PRS_OK;
6635}
6636
6637static struct action_kw_list http_req_actions = {ILH, {
6638 { "wait-for-handshake", ssl_parse_wait_for_hs },
6639 { /* END */ }
6640}};
6641
Willy Tarreau0108d902018-11-25 19:14:37 +01006642INITCALL1(STG_REGISTER, http_req_keywords_register, &http_req_actions);
6643
Willy Tarreau5db847a2019-05-09 14:13:35 +02006644#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01006645
6646static void ssl_sock_sctl_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6647{
6648 if (ptr) {
6649 chunk_destroy(ptr);
6650 free(ptr);
6651 }
6652}
6653
6654#endif
William Lallemand76b4a122020-08-04 17:41:39 +02006655
6656#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
6657static void ssl_sock_ocsp_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6658{
6659 struct ocsp_cbk_arg *ocsp_arg;
6660
6661 if (ptr) {
6662 ocsp_arg = ptr;
6663
6664 if (ocsp_arg->is_single) {
6665 ssl_sock_free_ocsp(ocsp_arg->s_ocsp);
6666 ocsp_arg->s_ocsp = NULL;
6667 } else {
6668 int i;
6669
6670 for (i = 0; i < SSL_SOCK_NUM_KEYTYPES; i++) {
6671 ssl_sock_free_ocsp(ocsp_arg->m_ocsp[i]);
6672 ocsp_arg->m_ocsp[i] = NULL;
6673 }
6674 }
6675 free(ocsp_arg);
6676 }
6677}
6678#endif
6679
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01006680static void ssl_sock_capture_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6681{
Willy Tarreaubafbe012017-11-24 17:34:44 +01006682 pool_free(pool_head_ssl_capture, ptr);
Emmanuel Hocdetaaee7502017-03-07 18:34:58 +01006683}
William Lallemand7d42ef52020-07-06 11:41:30 +02006684
Ilya Shipitsin04a5a442020-11-03 14:15:38 +05006685#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02006686static void ssl_sock_keylog_free_func(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
6687{
6688 struct ssl_keylog *keylog;
6689
6690 if (!ptr)
6691 return;
6692
6693 keylog = ptr;
6694
6695 pool_free(pool_head_ssl_keylog_str, keylog->client_random);
6696 pool_free(pool_head_ssl_keylog_str, keylog->client_early_traffic_secret);
6697 pool_free(pool_head_ssl_keylog_str, keylog->client_handshake_traffic_secret);
6698 pool_free(pool_head_ssl_keylog_str, keylog->server_handshake_traffic_secret);
6699 pool_free(pool_head_ssl_keylog_str, keylog->client_traffic_secret_0);
6700 pool_free(pool_head_ssl_keylog_str, keylog->server_traffic_secret_0);
6701 pool_free(pool_head_ssl_keylog_str, keylog->exporter_secret);
6702 pool_free(pool_head_ssl_keylog_str, keylog->early_exporter_secret);
6703
6704 pool_free(pool_head_ssl_keylog, ptr);
6705}
6706#endif
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01006707
Emeric Brun46591952012-05-18 15:47:34 +02006708__attribute__((constructor))
Willy Tarreau92faadf2012-10-10 23:04:25 +02006709static void __ssl_sock_init(void)
6710{
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006711#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02006712 STACK_OF(SSL_COMP)* cm;
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05006713 int n;
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006714#endif
Emeric Brun46591952012-05-18 15:47:34 +02006715
Willy Tarreauef934602016-12-22 23:12:01 +01006716 if (global_ssl.listen_default_ciphers)
6717 global_ssl.listen_default_ciphers = strdup(global_ssl.listen_default_ciphers);
6718 if (global_ssl.connect_default_ciphers)
6719 global_ssl.connect_default_ciphers = strdup(global_ssl.connect_default_ciphers);
Ilya Shipitsinf34ed0b2020-11-21 14:37:34 +05006720#ifdef HAVE_SSL_CTX_SET_CIPHERSUITES
Dirkjan Bussink415150f2018-09-14 11:14:21 +02006721 if (global_ssl.listen_default_ciphersuites)
6722 global_ssl.listen_default_ciphersuites = strdup(global_ssl.listen_default_ciphersuites);
6723 if (global_ssl.connect_default_ciphersuites)
6724 global_ssl.connect_default_ciphersuites = strdup(global_ssl.connect_default_ciphersuites);
6725#endif
Willy Tarreau610f04b2014-02-13 11:36:41 +01006726
Willy Tarreau13e14102016-12-22 20:25:26 +01006727 xprt_register(XPRT_SSL, &ssl_sock);
Willy Tarreau9a1ab082019-05-09 13:26:41 +02006728#if HA_OPENSSL_VERSION_NUMBER < 0x10100000L
Emeric Brun46591952012-05-18 15:47:34 +02006729 SSL_library_init();
Rosen Penev68185952018-12-14 08:47:02 -08006730#endif
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006731#if (!defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION))
Emeric Brun46591952012-05-18 15:47:34 +02006732 cm = SSL_COMP_get_compression_methods();
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05006733 n = sk_SSL_COMP_num(cm);
6734 while (n--) {
6735 (void) sk_SSL_COMP_pop(cm);
6736 }
Ilya Shipitsin0590f442019-05-25 19:30:50 +05006737#endif
Ilya Shipitsine242f3d2019-05-25 03:38:14 +05006738
Willy Tarreau5db847a2019-05-09 14:13:35 +02006739#if defined(USE_THREAD) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Emeric Brun821bb9b2017-06-15 16:37:39 +02006740 ssl_locking_init();
6741#endif
Willy Tarreau5db847a2019-05-09 14:13:35 +02006742#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
Janusz Dziemidowicz2c701b52015-03-07 23:03:59 +01006743 sctl_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_sctl_free_func);
6744#endif
William Lallemand76b4a122020-08-04 17:41:39 +02006745
6746#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) && !defined OPENSSL_IS_BORINGSSL)
6747 ocsp_ex_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_ocsp_free_func);
6748#endif
6749
Thierry FOURNIER28962c92018-06-17 21:37:05 +02006750 ssl_app_data_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
Thierry FOURNIER16ff0502018-06-17 21:33:01 +02006751 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 +05006752#ifdef HAVE_OPENSSL_KEYLOG
William Lallemand7d42ef52020-07-06 11:41:30 +02006753 ssl_keylog_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, ssl_sock_keylog_free_func);
6754#endif
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006755#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00006756 ENGINE_load_builtin_engines();
Grant Zhangfa6c7ee2017-01-14 01:42:15 +00006757 hap_register_post_check(ssl_check_async_engine_count);
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006758#endif
Willy Tarreaud1c57502016-12-22 22:46:15 +01006759#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
6760 hap_register_post_check(tlskeys_finalize_config);
6761#endif
Willy Tarreau80713382018-11-26 10:19:54 +01006762
6763 global.ssl_session_max_cost = SSL_SESSION_MAX_COST;
6764 global.ssl_handshake_max_cost = SSL_HANDSHAKE_MAX_COST;
6765
Emmanuel Hocdet70df7bf2019-01-04 11:08:20 +01006766 hap_register_post_deinit(ssl_free_global_issuers);
6767
Willy Tarreau80713382018-11-26 10:19:54 +01006768#ifndef OPENSSL_NO_DH
6769 ssl_dh_ptr_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
6770 hap_register_post_deinit(ssl_free_dh);
6771#endif
6772#ifndef OPENSSL_NO_ENGINE
6773 hap_register_post_deinit(ssl_free_engines);
6774#endif
6775 /* Load SSL string for the verbose & debug mode. */
6776 ERR_load_SSL_strings();
Olivier Houcharda8955d52019-04-07 22:00:38 +02006777 ha_meth = BIO_meth_new(0x666, "ha methods");
6778 BIO_meth_set_write(ha_meth, ha_ssl_write);
6779 BIO_meth_set_read(ha_meth, ha_ssl_read);
6780 BIO_meth_set_ctrl(ha_meth, ha_ssl_ctrl);
6781 BIO_meth_set_create(ha_meth, ha_ssl_new);
6782 BIO_meth_set_destroy(ha_meth, ha_ssl_free);
6783 BIO_meth_set_puts(ha_meth, ha_ssl_puts);
6784 BIO_meth_set_gets(ha_meth, ha_ssl_gets);
William Lallemand150bfa82019-09-19 17:12:49 +02006785
6786 HA_SPIN_INIT(&ckch_lock);
Dragan Dosen1e7ed042020-05-08 18:30:00 +02006787
Dragan Dosen9ac98092020-05-11 15:51:45 +02006788 /* Try to register dedicated SSL/TLS protocol message callbacks for
6789 * heartbleed attack (CVE-2014-0160) and clienthello.
6790 */
6791 hap_register_post_check(ssl_sock_register_msg_callbacks);
6792
Dragan Dosen1e7ed042020-05-08 18:30:00 +02006793 /* Try to free all callbacks that were registered by using
6794 * ssl_sock_register_msg_callback().
6795 */
6796 hap_register_post_deinit(ssl_sock_unregister_msg_callbacks);
Willy Tarreau80713382018-11-26 10:19:54 +01006797}
Willy Tarreaud92aa5c2015-01-15 21:34:39 +01006798
Willy Tarreau80713382018-11-26 10:19:54 +01006799/* Compute and register the version string */
6800static void ssl_register_build_options()
6801{
6802 char *ptr = NULL;
6803 int i;
6804
Willy Tarreauc2c0b612016-12-21 19:23:20 +01006805 memprintf(&ptr, "Built with OpenSSL version : "
6806#ifdef OPENSSL_IS_BORINGSSL
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01006807 "BoringSSL");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01006808#else /* OPENSSL_IS_BORINGSSL */
6809 OPENSSL_VERSION_TEXT
6810 "\nRunning on OpenSSL version : %s%s",
Rosen Penev68185952018-12-14 08:47:02 -08006811 OpenSSL_version(OPENSSL_VERSION),
Willy Tarreau1d158ab2019-05-09 13:41:45 +02006812 ((OPENSSL_VERSION_NUMBER ^ OpenSSL_version_num()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Willy Tarreauc2c0b612016-12-21 19:23:20 +01006813#endif
6814 memprintf(&ptr, "%s\nOpenSSL library supports TLS extensions : "
Willy Tarreau9a1ab082019-05-09 13:26:41 +02006815#if HA_OPENSSL_VERSION_NUMBER < 0x00907000L
Willy Tarreauc2c0b612016-12-21 19:23:20 +01006816 "no (library version too old)"
6817#elif defined(OPENSSL_NO_TLSEXT)
6818 "no (disabled via OPENSSL_NO_TLSEXT)"
6819#else
6820 "yes"
6821#endif
6822 "", ptr);
6823
6824 memprintf(&ptr, "%s\nOpenSSL library supports SNI : "
6825#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
6826 "yes"
6827#else
6828#ifdef OPENSSL_NO_TLSEXT
6829 "no (because of OPENSSL_NO_TLSEXT)"
6830#else
6831 "no (version might be too old, 0.9.8f min needed)"
6832#endif
6833#endif
6834 "", ptr);
6835
Emmanuel Hocdetf80bc242017-07-12 14:25:38 +02006836 memprintf(&ptr, "%s\nOpenSSL library supports :", ptr);
6837 for (i = CONF_TLSV_MIN; i <= CONF_TLSV_MAX; i++)
6838 if (methodVersions[i].option)
6839 memprintf(&ptr, "%s %s", ptr, methodVersions[i].name);
Emmanuel Hocdet50e25e12017-03-24 15:20:03 +01006840
Willy Tarreauc2c0b612016-12-21 19:23:20 +01006841 hap_register_build_opts(ptr, 1);
Willy Tarreau80713382018-11-26 10:19:54 +01006842}
Willy Tarreauc2c0b612016-12-21 19:23:20 +01006843
Willy Tarreau80713382018-11-26 10:19:54 +01006844INITCALL0(STG_REGISTER, ssl_register_build_options);
Remi Gacogne4f902b82015-05-28 16:23:00 +02006845
Emeric Brun46591952012-05-18 15:47:34 +02006846
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006847#ifndef OPENSSL_NO_ENGINE
Grant Zhang872f9c22017-01-21 01:10:18 +00006848void ssl_free_engines(void) {
6849 struct ssl_engine_list *wl, *wlb;
6850 /* free up engine list */
6851 list_for_each_entry_safe(wl, wlb, &openssl_engines, list) {
6852 ENGINE_finish(wl->e);
6853 ENGINE_free(wl->e);
6854 LIST_DEL(&wl->list);
6855 free(wl);
6856 }
6857}
Emmanuel Hocdet9ac143b2017-05-29 14:36:20 +02006858#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +02006859
Remi Gacogned3a23c32015-05-28 16:39:47 +02006860#ifndef OPENSSL_NO_DH
Grant Zhang872f9c22017-01-21 01:10:18 +00006861void ssl_free_dh(void) {
6862 if (local_dh_1024) {
6863 DH_free(local_dh_1024);
6864 local_dh_1024 = NULL;
6865 }
6866 if (local_dh_2048) {
6867 DH_free(local_dh_2048);
6868 local_dh_2048 = NULL;
6869 }
6870 if (local_dh_4096) {
6871 DH_free(local_dh_4096);
6872 local_dh_4096 = NULL;
6873 }
Remi Gacogne47783ef2015-05-29 15:53:22 +02006874 if (global_dh) {
6875 DH_free(global_dh);
6876 global_dh = NULL;
6877 }
Grant Zhang872f9c22017-01-21 01:10:18 +00006878}
6879#endif
6880
6881__attribute__((destructor))
6882static void __ssl_sock_deinit(void)
6883{
6884#if (defined SSL_CTRL_SET_TLSEXT_HOSTNAME && !defined SSL_NO_GENERATE_CERTIFICATES)
Emeric Brun821bb9b2017-06-15 16:37:39 +02006885 if (ssl_ctx_lru_tree) {
6886 lru64_destroy(ssl_ctx_lru_tree);
Christopher Faulet2a944ee2017-11-07 10:42:54 +01006887 HA_RWLOCK_DESTROY(&ssl_ctx_lru_rwlock);
Emeric Brun821bb9b2017-06-15 16:37:39 +02006888 }
Remi Gacogned3a23c32015-05-28 16:39:47 +02006889#endif
6890
Willy Tarreau5db847a2019-05-09 14:13:35 +02006891#if (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02006892 ERR_remove_state(0);
6893 ERR_free_strings();
6894
6895 EVP_cleanup();
Rosen Penev68185952018-12-14 08:47:02 -08006896#endif
Remi Gacogned3a23c32015-05-28 16:39:47 +02006897
Willy Tarreau5db847a2019-05-09 14:13:35 +02006898#if (HA_OPENSSL_VERSION_NUMBER >= 0x00907000L) && (HA_OPENSSL_VERSION_NUMBER < 0x10100000L)
Remi Gacogned3a23c32015-05-28 16:39:47 +02006899 CRYPTO_cleanup_all_ex_data();
6900#endif
Olivier Houcharda8955d52019-04-07 22:00:38 +02006901 BIO_meth_free(ha_meth);
Remi Gacogned3a23c32015-05-28 16:39:47 +02006902}
6903
William Dauchyf6370442020-11-14 19:25:33 +01006904/* Activate ssl on server <s>.
6905 * do nothing if there is no change to apply
6906 *
6907 * Must be called with the server lock held.
6908 */
6909void ssl_sock_set_srv(struct server *s, signed char use_ssl)
6910{
6911 if (s->use_ssl == use_ssl)
6912 return;
6913
6914 s->use_ssl = use_ssl;
6915 if (s->use_ssl == 1)
6916 s->xprt = &ssl_sock;
6917 else
6918 s->xprt = s->check.xprt = s->agent.xprt = xprt_get(XPRT_RAW);
6919}
6920
Emeric Brun46591952012-05-18 15:47:34 +02006921/*
6922 * Local variables:
6923 * c-indent-level: 8
6924 * c-basic-offset: 8
6925 * End:
6926 */