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 sa4
= *(struct sockaddr_in
*)sa
;
79 sa
= (struct sockaddr
*)&sa4
;
83 sa4
.sin_addr
.s_addr
= INADDR_ANY
;
85 } else if (sa
->sa_family
== AF_INET6
) {
86 sa6
= *(struct sockaddr_in6
*)sa
;
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
)
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
);
220 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_AESGCM
) != 0) {
1062 br_ssl_engine_set_default_aes_gcm(&cc
.eng
);
1064 if ((req
& REQ_CHAPOL
) != 0) {
1065 br_ssl_engine_set_default_chapol(&cc
.eng
);
1067 if ((req
& REQ_3DESCBC
) != 0) {
1068 br_ssl_engine_set_default_des_cbc(&cc
.eng
);
1070 if ((req
& (REQ_ECDHE_RSA
| REQ_ECDHE_ECDSA
)) != 0) {
1071 br_ssl_engine_set_default_ec(&cc
.eng
);
1074 br_ssl_engine_set_suites(&cc
.eng
, suite_ids
, num_suites
);
1077 for (u
= 0; hash_functions
[u
].name
; u
++) {
1078 const br_hash_class
*hc
;
1081 hc
= hash_functions
[u
].hclass
;
1082 id
= (hc
->desc
>> BR_HASHDESC_ID_OFF
) & BR_HASHDESC_ID_MASK
;
1083 if ((hfuns
& ((unsigned)1 << id
)) != 0) {
1085 br_ssl_engine_set_hash(&cc
.eng
, id
, hc
);
1088 if (vmin
<= BR_TLS11
) {
1089 br_ssl_engine_set_prf10(&cc
.eng
, &br_tls10_prf
);
1091 if (vmax
>= BR_TLS12
) {
1092 if ((hfuns
& ((unsigned)1 << br_sha256_ID
)) != 0) {
1093 br_ssl_engine_set_prf_sha256(&cc
.eng
,
1094 &br_tls12_sha256_prf
);
1096 if ((hfuns
& ((unsigned)1 << br_sha384_ID
)) != 0) {
1097 br_ssl_engine_set_prf_sha384(&cc
.eng
,
1098 &br_tls12_sha384_prf
);
1102 br_ssl_session_cache_lru_init(&lru
, cache
, cache_len
);
1103 br_ssl_server_set_cache(&cc
, &lru
.vtable
);
1105 if (VEC_LEN(alpn_names
) != 0) {
1106 br_ssl_engine_set_protocol_names(&cc
.eng
,
1107 (const char **)&VEC_ELT(alpn_names
, 0),
1108 VEC_LEN(alpn_names
));
1112 * Set the policy handler (that chooses the actual cipher suite,
1113 * selects the certificate chain, and runs the private key
1116 pc
.vtable
= &policy_vtable
;
1117 pc
.verbose
= verbose
;
1119 pc
.chain_len
= chain_len
;
1120 pc
.cert_signer_algo
= cert_signer_algo
;
1123 br_ssl_server_set_policy(&cc
, &pc
.vtable
);
1126 * If trust anchors have been configured, then set an X.509
1127 * validation engine and activate client certificate
1130 if (VEC_LEN(anchors
) != 0) {
1131 br_x509_minimal_init(&xc
, dnhash
,
1132 &VEC_ELT(anchors
, 0), VEC_LEN(anchors
));
1133 for (u
= 0; hash_functions
[u
].name
; u
++) {
1134 const br_hash_class
*hc
;
1137 hc
= hash_functions
[u
].hclass
;
1138 id
= (hc
->desc
>> BR_HASHDESC_ID_OFF
)
1139 & BR_HASHDESC_ID_MASK
;
1140 if ((hfuns
& ((unsigned)1 << id
)) != 0) {
1141 br_x509_minimal_set_hash(&xc
, id
, hc
);
1144 br_ssl_engine_set_default_rsavrfy(&cc
.eng
);
1145 br_ssl_engine_set_default_ecdsa(&cc
.eng
);
1146 br_x509_minimal_set_rsa(&xc
, br_rsa_pkcs1_vrfy_get_default());
1147 br_x509_minimal_set_ecdsa(&xc
,
1148 br_ec_get_default(), br_ecdsa_vrfy_asn1_get_default());
1149 br_ssl_engine_set_x509(&cc
.eng
, &xc
.vtable
);
1150 br_ssl_server_set_trust_anchor_names_alt(&cc
,
1151 &VEC_ELT(anchors
, 0), VEC_LEN(anchors
));
1154 br_ssl_engine_set_buffer(&cc
.eng
, iobuf
, iobuf_len
, bidi
);
1157 * On Unix systems, we need to ignore SIGPIPE.
1160 signal(SIGPIPE
, SIG_IGN
);
1164 * Open the server socket.
1166 server_fd
= host_bind(bind_name
, port
, verbose
);
1167 if (server_fd
== INVALID_SOCKET
) {
1168 goto server_exit_error
;
1172 * Process incoming clients, one at a time. Note that we do not
1173 * accept any client until the previous connection has finished:
1174 * this is voluntary, since the tool uses stdin/stdout for
1175 * application data, and thus cannot really run two connections
1181 fd
= accept_client(server_fd
, verbose
);
1182 if (fd
== INVALID_SOCKET
) {
1183 goto server_exit_error
;
1185 br_ssl_server_reset(&cc
);
1186 x
= run_ssl_engine(&cc
.eng
, fd
,
1187 (verbose
? RUN_ENGINE_VERBOSE
: 0)
1188 | (trace
? RUN_ENGINE_TRACE
: 0));
1194 fd
= INVALID_SOCKET
;
1196 goto server_exit_error
;
1201 * Release allocated structures.
1206 free_certificates(chain
, chain_len
);
1207 free_private_key(sk
);
1208 VEC_CLEAREXT(anchors
, &free_ta_contents
);
1209 VEC_CLEAREXT(alpn_names
, &free_alpn
);
1212 if (fd
!= INVALID_SOCKET
) {