2 * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include <sys/types.h>
37 #include <sys/socket.h>
39 #include <netinet/in.h>
40 #include <arpa/inet.h>
45 #define INVALID_SOCKET (-1)
46 #define SOCKADDR_STORAGE struct sockaddr_storage
52 host_bind(const char *host, const char *port, int verbose)
54 struct addrinfo hints, *si, *p;
58 memset(&hints, 0, sizeof hints);
59 hints.ai_family = PF_UNSPEC;
60 hints.ai_socktype = SOCK_STREAM;
61 err = getaddrinfo(host, port, &hints, &si);
63 fprintf(stderr, "ERROR: getaddrinfo(): %s\n",
65 return INVALID_SOCKET;
68 for (p = si; p != NULL; p = p->ai_next) {
70 struct sockaddr_in sa4;
71 struct sockaddr_in6 sa6;
76 sa = (struct sockaddr *)p->ai_addr;
77 if (sa->sa_family == AF_INET) {
78 memcpy(&sa4, sa, sizeof sa4);
79 sa = (struct sockaddr *)&sa4;
83 sa4.sin_addr.s_addr = INADDR_ANY;
85 } else if (sa->sa_family == AF_INET6) {
86 memcpy(&sa6, sa, sizeof sa6);
87 sa = (struct sockaddr *)&sa6;
89 addr = &sa6.sin6_addr;
91 sa6.sin6_addr = in6addr_any;
95 sa_len = p->ai_addrlen;
98 char tmp[INET6_ADDRSTRLEN + 50];
101 if (!inet_ntop(p->ai_family, addr,
104 strcpy(tmp, "<invalid>");
107 sprintf(tmp, "<unknown family: %d>",
110 fprintf(stderr, "binding to: %s\n", tmp);
112 fd = socket(p->ai_family, p->ai_socktype, p->ai_protocol);
113 if (fd == INVALID_SOCKET) {
120 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
121 (void *)&opt, sizeof opt);
124 * We want to make sure that the server socket works for
125 * both IPv4 and IPv6. But IPV6_V6ONLY is not defined on
126 * some very old systems.
129 setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
130 (void *)&opt, sizeof opt);
132 if (bind(fd, sa, sa_len) < 0) {
147 fprintf(stderr, "ERROR: failed to bind\n");
148 return INVALID_SOCKET;
151 if (listen(fd, 5) < 0) {
160 return INVALID_SOCKET;
163 fprintf(stderr, "bound.\n");
169 accept_client(SOCKET server_fd, int verbose, int nonblock)
176 fd = accept(server_fd, (struct sockaddr *)&sa, &sa_len);
177 if (fd == INVALID_SOCKET) {
181 return INVALID_SOCKET;
184 char tmp[INET6_ADDRSTRLEN + 50];
188 switch (((struct sockaddr *)&sa)->sa_family) {
190 name = inet_ntop(AF_INET,
191 &((struct sockaddr_in *)&sa)->sin_addr,
195 name = inet_ntop(AF_INET6,
196 &((struct sockaddr_in6 *)&sa)->sin6_addr,
201 sprintf(tmp, "<unknown: %lu>", (unsigned long)
202 ((struct sockaddr *)&sa)->sa_family);
205 fprintf(stderr, "accepting connection from: %s\n", name);
209 * We make the socket non-blocking, since we are going to use
210 * poll() or select() to organise I/O.
217 ioctlsocket(fd, FIONBIO, &arg);
219 fcntl(fd, F_SETFL, O_NONBLOCK);
229 "usage: brssl server [ options ]\n");
233 " -q suppress verbose messages\n");
235 " -trace activate extra debug messages (dump of all packets)\n");
237 " -b name bind to a specific address or host name\n");
239 " -p port bind to a specific port (default: 4433)\n");
241 " -mono use monodirectional buffering\n");
243 " -buf length set the I/O buffer length (in bytes)\n");
245 " -cache length set the session cache storage length (in bytes)\n");
247 " -cert fname read certificate chain from file 'fname'\n");
249 " -key fname read private key from file 'fname'\n");
251 " -CA file add trust anchors from 'file' (for client auth)\n");
253 " -anon_ok request but do not require a client certificate\n");
255 " -list list supported names (protocols, algorithms...)\n");
257 " -vmin name set minimum supported version (default: TLS-1.0)\n");
259 " -vmax name set maximum supported version (default: TLS-1.2)\n");
261 " -cs names set list of supported cipher suites (comma-separated)\n");
263 " -hf names add support for some hash functions (comma-separated)\n");
265 " -cbhash test hashing in policy callback\n");
267 " -serverpref enforce server's preferences for cipher suites\n");
269 " -noreneg prohibit renegotiations\n");
271 " -alpn name add protocol name to list of protocols (ALPN extension)\n");
273 " -strictalpn fail on ALPN mismatch\n");
278 const br_ssl_server_policy_class *vtable;
280 br_x509_certificate *chain;
282 int cert_signer_algo;
288 print_hashes(unsigned chashes)
292 for (i = 2; i <= 6; i ++) {
293 if ((chashes >> i) & 1) {
297 case 3: z = 224; break;
298 case 4: z = 256; break;
299 case 5: z = 384; break;
300 case 6: z = 512; break;
305 fprintf(stderr, " sha%d", z);
311 choose_hash(unsigned chashes)
315 for (hash_id = 6; hash_id >= 2; hash_id --) {
316 if (((chashes >> hash_id) & 1) != 0) {
321 * Normally unreachable.
327 sp_choose(const br_ssl_server_policy_class **pctx,
328 const br_ssl_server_context *cc,
329 br_ssl_server_choices *choices)
332 const br_suite_translated *st;
336 pc = (policy_context *)pctx;
337 st = br_ssl_server_get_client_suites(cc, &st_num);
338 chashes = br_ssl_server_get_client_hashes(cc);
340 fprintf(stderr, "Client parameters:\n");
341 fprintf(stderr, " Maximum version: ");
342 switch (cc->client_max_version) {
344 fprintf(stderr, "SSL 3.0");
347 fprintf(stderr, "TLS 1.0");
350 fprintf(stderr, "TLS 1.1");
353 fprintf(stderr, "TLS 1.2");
356 fprintf(stderr, "unknown (0x%04X)",
357 (unsigned)cc->client_max_version);
360 fprintf(stderr, "\n");
361 fprintf(stderr, " Compatible cipher suites:\n");
362 for (u = 0; u < st_num; u ++) {
365 get_suite_name_ext(st[u][0], csn, sizeof csn);
366 fprintf(stderr, " %s\n", csn);
368 fprintf(stderr, " Common sign+hash functions:\n");
369 if ((chashes & 0xFF) != 0) {
370 fprintf(stderr, " with RSA:");
371 print_hashes(chashes);
372 fprintf(stderr, "\n");
374 if ((chashes >> 8) != 0) {
375 fprintf(stderr, " with ECDSA:");
376 print_hashes(chashes >> 8);
377 fprintf(stderr, "\n");
380 for (u = 0; u < st_num; u ++) {
386 if (pc->sk->key_type == BR_KEYTYPE_RSA) {
387 choices->cipher_suite = st[u][0];
391 case BR_SSLKEYX_ECDHE_RSA:
392 if (pc->sk->key_type == BR_KEYTYPE_RSA) {
393 choices->cipher_suite = st[u][0];
394 if (br_ssl_engine_get_version(&cc->eng)
398 choices->algo_id = 0x0001;
400 choices->algo_id = 0xFF00;
405 id = choose_hash(chashes);
410 choices->algo_id = 0xFF00 + id;
416 case BR_SSLKEYX_ECDHE_ECDSA:
417 if (pc->sk->key_type == BR_KEYTYPE_EC) {
418 choices->cipher_suite = st[u][0];
419 if (br_ssl_engine_get_version(&cc->eng)
423 choices->algo_id = 0x0203;
431 id = choose_hash(chashes >> 8);
443 case BR_SSLKEYX_ECDH_RSA:
444 if (pc->sk->key_type == BR_KEYTYPE_EC
445 && pc->cert_signer_algo == BR_KEYTYPE_RSA)
447 choices->cipher_suite = st[u][0];
451 case BR_SSLKEYX_ECDH_ECDSA:
452 if (pc->sk->key_type == BR_KEYTYPE_EC
453 && pc->cert_signer_algo == BR_KEYTYPE_EC)
455 choices->cipher_suite = st[u][0];
464 choices->chain = pc->chain;
465 choices->chain_len = pc->chain_len;
469 get_suite_name_ext(choices->cipher_suite, csn, sizeof csn);
470 fprintf(stderr, "Using: %s\n", csn);
476 sp_do_keyx(const br_ssl_server_policy_class **pctx,
477 unsigned char *data, size_t *len)
483 pc = (policy_context *)pctx;
484 switch (pc->sk->key_type) {
485 const br_ec_impl *iec;
488 return br_rsa_ssl_decrypt(
489 br_rsa_private_get_default(),
490 &pc->sk->key.rsa, data, *len);
492 iec = br_ec_get_default();
493 r = iec->mul(data, *len, pc->sk->key.ec.x,
494 pc->sk->key.ec.xlen, pc->sk->key.ec.curve);
495 xoff = iec->xoff(pc->sk->key.ec.curve, &xlen);
496 memmove(data, data + xoff, xlen);
500 fprintf(stderr, "ERROR: unknown private key type (%d)\n",
501 (int)pc->sk->key_type);
507 sp_do_sign(const br_ssl_server_policy_class **pctx,
508 unsigned algo_id, unsigned char *data, size_t hv_len, size_t len)
511 unsigned char hv[64];
513 pc = (policy_context *)pctx;
514 if (algo_id >= 0xFF00) {
516 memcpy(hv, data, hv_len);
518 const br_hash_class *hc;
519 br_hash_compat_context zc;
522 fprintf(stderr, "Callback hashing, algo = 0x%04X,"
524 algo_id, (unsigned long)hv_len);
527 hc = get_hash_impl(algo_id);
531 "ERROR: unsupported hash function %u\n",
536 hc->init(&zc.vtable);
537 hc->update(&zc.vtable, data, hv_len);
538 hc->out(&zc.vtable, hv);
539 hv_len = (hc->desc >> BR_HASHDESC_OUT_OFF)
540 & BR_HASHDESC_OUT_MASK;
542 switch (pc->sk->key_type) {
545 const unsigned char *hash_oid;
546 const br_hash_class *hc;
549 hash_oid = get_hash_oid(algo_id);
550 if (hash_oid == NULL && algo_id != 0) {
552 fprintf(stderr, "ERROR: cannot RSA-sign with"
553 " unknown hash function: %u\n",
558 sig_len = (pc->sk->key.rsa.n_bitlen + 7) >> 3;
561 fprintf(stderr, "ERROR: cannot RSA-sign,"
562 " buffer is too small"
563 " (sig=%lu, buf=%lu)\n",
564 (unsigned long)sig_len,
569 x = br_rsa_pkcs1_sign_get_default()(
570 hash_oid, hv, hv_len, &pc->sk->key.rsa, data);
573 fprintf(stderr, "ERROR: RSA-sign failure\n");
580 hc = get_hash_impl(algo_id);
583 fprintf(stderr, "ERROR: cannot ECDSA-sign with"
584 " unknown hash function: %u\n",
591 fprintf(stderr, "ERROR: cannot ECDSA-sign"
592 " (output buffer = %lu)\n",
597 sig_len = br_ecdsa_sign_asn1_get_default()(
598 br_ec_get_default(), hc, hv, &pc->sk->key.ec, data);
601 fprintf(stderr, "ERROR: ECDSA-sign failure\n");
612 static const br_ssl_server_policy_class policy_vtable = {
613 sizeof(policy_context),
620 free_alpn(void *alpn)
622 xfree(*(char **)alpn);
627 do_server(int argc, char *argv[])
633 const char *bind_name;
636 cipher_suite *suites;
641 br_x509_certificate *chain;
643 int cert_signer_algo;
645 anchor_list anchors = VEC_INIT;
646 VECTOR(char *) alpn_names = VEC_INIT;
647 br_x509_minimal_context xc;
648 const br_hash_class *dnhash;
650 br_ssl_server_context cc;
652 br_ssl_session_cache_lru lru;
653 unsigned char *iobuf, *cache;
654 size_t iobuf_len, cache_len;
656 SOCKET server_fd, fd;
677 cache_len = (size_t)-1;
679 server_fd = INVALID_SOCKET;
681 for (i = 0; i < argc; i ++) {
687 goto server_exit_error;
689 if (eqstr(arg, "-v") || eqstr(arg, "-verbose")) {
691 } else if (eqstr(arg, "-q") || eqstr(arg, "-quiet")) {
693 } else if (eqstr(arg, "-trace")) {
695 } else if (eqstr(arg, "-b")) {
698 "ERROR: no argument for '-b'\n");
700 goto server_exit_error;
702 if (bind_name != NULL) {
703 fprintf(stderr, "ERROR: duplicate bind host\n");
705 goto server_exit_error;
708 } else if (eqstr(arg, "-p")) {
711 "ERROR: no argument for '-p'\n");
713 goto server_exit_error;
716 fprintf(stderr, "ERROR: duplicate bind port\n");
718 goto server_exit_error;
721 } else if (eqstr(arg, "-mono")) {
723 } else if (eqstr(arg, "-buf")) {
726 "ERROR: no argument for '-buf'\n");
728 goto server_exit_error;
731 if (iobuf_len != 0) {
733 "ERROR: duplicate I/O buffer length\n");
735 goto server_exit_error;
737 iobuf_len = parse_size(arg);
738 if (iobuf_len == (size_t)-1) {
740 goto server_exit_error;
742 } else if (eqstr(arg, "-cache")) {
745 "ERROR: no argument for '-cache'\n");
747 goto server_exit_error;
750 if (cache_len != (size_t)-1) {
751 fprintf(stderr, "ERROR: duplicate session"
754 goto server_exit_error;
756 cache_len = parse_size(arg);
757 if (cache_len == (size_t)-1) {
759 goto server_exit_error;
761 } else if (eqstr(arg, "-cert")) {
764 "ERROR: no argument for '-cert'\n");
766 goto server_exit_error;
770 "ERROR: duplicate certificate chain\n");
772 goto server_exit_error;
775 chain = read_certificates(arg, &chain_len);
776 if (chain == NULL || chain_len == 0) {
777 goto server_exit_error;
779 } else if (eqstr(arg, "-key")) {
782 "ERROR: no argument for '-key'\n");
784 goto server_exit_error;
788 "ERROR: duplicate private key\n");
790 goto server_exit_error;
793 sk = read_private_key(arg);
795 goto server_exit_error;
797 } else if (eqstr(arg, "-CA")) {
800 "ERROR: no argument for '-CA'\n");
802 goto server_exit_error;
805 if (read_trust_anchors(&anchors, arg) == 0) {
807 goto server_exit_error;
809 } else if (eqstr(arg, "-anon_ok")) {
810 flags |= BR_OPT_TOLERATE_NO_CLIENT_AUTH;
811 } else if (eqstr(arg, "-list")) {
814 } else if (eqstr(arg, "-vmin")) {
817 "ERROR: no argument for '-vmin'\n");
819 goto server_exit_error;
824 "ERROR: duplicate minimum version\n");
826 goto server_exit_error;
828 vmin = parse_version(arg, strlen(arg));
831 "ERROR: unrecognised version '%s'\n",
834 goto server_exit_error;
836 } else if (eqstr(arg, "-vmax")) {
839 "ERROR: no argument for '-vmax'\n");
841 goto server_exit_error;
846 "ERROR: duplicate maximum version\n");
848 goto server_exit_error;
850 vmax = parse_version(arg, strlen(arg));
853 "ERROR: unrecognised version '%s'\n",
856 goto server_exit_error;
858 } else if (eqstr(arg, "-cs")) {
861 "ERROR: no argument for '-cs'\n");
863 goto server_exit_error;
866 if (suites != NULL) {
867 fprintf(stderr, "ERROR: duplicate list"
868 " of cipher suites\n");
870 goto server_exit_error;
872 suites = parse_suites(arg, &num_suites);
873 if (suites == NULL) {
875 goto server_exit_error;
877 } else if (eqstr(arg, "-hf")) {
882 "ERROR: no argument for '-hf'\n");
884 goto server_exit_error;
887 x = parse_hash_functions(arg);
890 goto server_exit_error;
893 } else if (eqstr(arg, "-cbhash")) {
895 } else if (eqstr(arg, "-serverpref")) {
896 flags |= BR_OPT_ENFORCE_SERVER_PREFERENCES;
897 } else if (eqstr(arg, "-noreneg")) {
898 flags |= BR_OPT_NO_RENEGOTIATION;
899 } else if (eqstr(arg, "-alpn")) {
902 "ERROR: no argument for '-alpn'\n");
904 goto server_exit_error;
906 VEC_ADD(alpn_names, xstrdup(argv[i]));
907 } else if (eqstr(arg, "-strictalpn")) {
908 flags |= BR_OPT_FAIL_ON_ALPN_MISMATCH;
910 fprintf(stderr, "ERROR: unknown option: '%s'\n", arg);
912 goto server_exit_error;
925 fprintf(stderr, "ERROR: impossible minimum/maximum protocol"
926 " version combination\n");
928 goto server_exit_error;
930 if (suites == NULL) {
933 for (u = 0; cipher_suites[u].name; u ++) {
934 if ((cipher_suites[u].req & REQ_TLS12) == 0
940 suites = xmalloc(num_suites * sizeof *suites);
942 for (u = 0; cipher_suites[u].name; u ++) {
943 if ((cipher_suites[u].req & REQ_TLS12) == 0
946 suites[num_suites ++] = cipher_suites[u];
951 hfuns = (unsigned)-1;
953 if (chain == NULL || chain_len == 0) {
954 fprintf(stderr, "ERROR: no certificate chain provided\n");
955 goto server_exit_error;
958 fprintf(stderr, "ERROR: no private key provided\n");
959 goto server_exit_error;
961 switch (sk->key_type) {
968 curve = sk->key.ec.curve;
969 supp = br_ec_get_default()->supported_curves;
970 if (curve > 31 || !((supp >> curve) & 1)) {
971 fprintf(stderr, "ERROR: private key curve (%d)"
972 " is not supported\n", curve);
973 goto server_exit_error;
977 fprintf(stderr, "ERROR: unsupported private key type (%d)\n",
981 cert_signer_algo = get_cert_signer_algo(chain);
982 if (cert_signer_algo == 0) {
983 goto server_exit_error;
988 switch (cert_signer_algo) {
989 case BR_KEYTYPE_RSA: csas = "RSA"; break;
990 case BR_KEYTYPE_EC: csas = "EC"; break;
995 fprintf(stderr, "Issuing CA key type: %d (%s)\n",
996 cert_signer_algo, csas);
998 if (iobuf_len == 0) {
1000 iobuf_len = BR_SSL_BUFSIZE_BIDI;
1002 iobuf_len = BR_SSL_BUFSIZE_MONO;
1005 iobuf = xmalloc(iobuf_len);
1006 if (cache_len == (size_t)-1) {
1009 cache = xmalloc(cache_len);
1012 * Compute implementation requirements and inject implementations.
1014 suite_ids = xmalloc(num_suites * sizeof *suite_ids);
1015 br_ssl_server_zero(&cc);
1016 br_ssl_engine_set_versions(&cc.eng, vmin, vmax);
1017 br_ssl_engine_set_all_flags(&cc.eng, flags);
1018 if (vmin <= BR_TLS11) {
1019 if (!(hfuns & (1 << br_md5_ID))) {
1020 fprintf(stderr, "ERROR: TLS 1.0 and 1.1 need MD5\n");
1021 goto server_exit_error;
1023 if (!(hfuns & (1 << br_sha1_ID))) {
1024 fprintf(stderr, "ERROR: TLS 1.0 and 1.1 need SHA-1\n");
1025 goto server_exit_error;
1028 for (u = 0; u < num_suites; u ++) {
1031 req = suites[u].req;
1032 suite_ids[u] = suites[u].suite;
1033 if ((req & REQ_TLS12) != 0 && vmax < BR_TLS12) {
1035 "ERROR: cipher suite %s requires TLS 1.2\n",
1037 goto server_exit_error;
1039 if ((req & REQ_SHA1) != 0 && !(hfuns & (1 << br_sha1_ID))) {
1041 "ERROR: cipher suite %s requires SHA-1\n",
1043 goto server_exit_error;
1045 if ((req & REQ_SHA256) != 0 && !(hfuns & (1 << br_sha256_ID))) {
1047 "ERROR: cipher suite %s requires SHA-256\n",
1049 goto server_exit_error;
1051 if ((req & REQ_SHA384) != 0 && !(hfuns & (1 << br_sha384_ID))) {
1053 "ERROR: cipher suite %s requires SHA-384\n",
1055 goto server_exit_error;
1057 /* TODO: algorithm implementation selection */
1058 if ((req & REQ_AESCBC) != 0) {
1059 br_ssl_engine_set_default_aes_cbc(&cc.eng);
1061 if ((req & REQ_AESCCM) != 0) {
1062 br_ssl_engine_set_default_aes_ccm(&cc.eng);
1064 if ((req & REQ_AESGCM) != 0) {
1065 br_ssl_engine_set_default_aes_gcm(&cc.eng);
1067 if ((req & REQ_CHAPOL) != 0) {
1068 br_ssl_engine_set_default_chapol(&cc.eng);
1070 if ((req & REQ_3DESCBC) != 0) {
1071 br_ssl_engine_set_default_des_cbc(&cc.eng);
1073 if ((req & (REQ_ECDHE_RSA | REQ_ECDHE_ECDSA)) != 0) {
1074 br_ssl_engine_set_default_ec(&cc.eng);
1077 br_ssl_engine_set_suites(&cc.eng, suite_ids, num_suites);
1080 for (u = 0; hash_functions[u].name; u ++) {
1081 const br_hash_class *hc;
1084 hc = hash_functions[u].hclass;
1085 id = (hc->desc >> BR_HASHDESC_ID_OFF) & BR_HASHDESC_ID_MASK;
1086 if ((hfuns & ((unsigned)1 << id)) != 0) {
1088 br_ssl_engine_set_hash(&cc.eng, id, hc);
1091 if (vmin <= BR_TLS11) {
1092 br_ssl_engine_set_prf10(&cc.eng, &br_tls10_prf);
1094 if (vmax >= BR_TLS12) {
1095 if ((hfuns & ((unsigned)1 << br_sha256_ID)) != 0) {
1096 br_ssl_engine_set_prf_sha256(&cc.eng,
1097 &br_tls12_sha256_prf);
1099 if ((hfuns & ((unsigned)1 << br_sha384_ID)) != 0) {
1100 br_ssl_engine_set_prf_sha384(&cc.eng,
1101 &br_tls12_sha384_prf);
1105 br_ssl_session_cache_lru_init(&lru, cache, cache_len);
1106 br_ssl_server_set_cache(&cc, &lru.vtable);
1108 if (VEC_LEN(alpn_names) != 0) {
1109 br_ssl_engine_set_protocol_names(&cc.eng,
1110 (const char **)&VEC_ELT(alpn_names, 0),
1111 VEC_LEN(alpn_names));
1115 * Set the policy handler (that chooses the actual cipher suite,
1116 * selects the certificate chain, and runs the private key
1119 pc.vtable = &policy_vtable;
1120 pc.verbose = verbose;
1122 pc.chain_len = chain_len;
1123 pc.cert_signer_algo = cert_signer_algo;
1126 br_ssl_server_set_policy(&cc, &pc.vtable);
1129 * If trust anchors have been configured, then set an X.509
1130 * validation engine and activate client certificate
1133 if (VEC_LEN(anchors) != 0) {
1134 br_x509_minimal_init(&xc, dnhash,
1135 &VEC_ELT(anchors, 0), VEC_LEN(anchors));
1136 for (u = 0; hash_functions[u].name; u ++) {
1137 const br_hash_class *hc;
1140 hc = hash_functions[u].hclass;
1141 id = (hc->desc >> BR_HASHDESC_ID_OFF)
1142 & BR_HASHDESC_ID_MASK;
1143 if ((hfuns & ((unsigned)1 << id)) != 0) {
1144 br_x509_minimal_set_hash(&xc, id, hc);
1147 br_ssl_engine_set_default_rsavrfy(&cc.eng);
1148 br_ssl_engine_set_default_ecdsa(&cc.eng);
1149 br_x509_minimal_set_rsa(&xc, br_rsa_pkcs1_vrfy_get_default());
1150 br_x509_minimal_set_ecdsa(&xc,
1151 br_ec_get_default(), br_ecdsa_vrfy_asn1_get_default());
1152 br_ssl_engine_set_x509(&cc.eng, &xc.vtable);
1153 br_ssl_server_set_trust_anchor_names_alt(&cc,
1154 &VEC_ELT(anchors, 0), VEC_LEN(anchors));
1157 br_ssl_engine_set_buffer(&cc.eng, iobuf, iobuf_len, bidi);
1160 * On Unix systems, we need to ignore SIGPIPE.
1163 signal(SIGPIPE, SIG_IGN);
1167 * Open the server socket.
1169 server_fd = host_bind(bind_name, port, verbose);
1170 if (server_fd == INVALID_SOCKET) {
1171 goto server_exit_error;
1175 * Process incoming clients, one at a time. Note that we do not
1176 * accept any client until the previous connection has finished:
1177 * this is voluntary, since the tool uses stdin/stdout for
1178 * application data, and thus cannot really run two connections
1185 fd = accept_client(server_fd, verbose, 1);
1186 if (fd == INVALID_SOCKET) {
1187 goto server_exit_error;
1189 br_ssl_server_reset(&cc);
1190 run_flags = (verbose ? RUN_ENGINE_VERBOSE : 0)
1191 | (trace ? RUN_ENGINE_TRACE : 0);
1192 x = run_ssl_engine(&cc.eng, fd, run_flags);
1198 fd = INVALID_SOCKET;
1200 goto server_exit_error;
1205 * Release allocated structures.
1210 free_certificates(chain, chain_len);
1211 free_private_key(sk);
1212 VEC_CLEAREXT(anchors, &free_ta_contents);
1213 VEC_CLEAREXT(alpn_names, &free_alpn);
1216 if (fd != INVALID_SOCKET) {
1223 if (server_fd != INVALID_SOCKET) {
1225 closesocket(server_fd);