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
);
123 setsockopt(fd
, IPPROTO_IPV6
, IPV6_V6ONLY
,
124 (void *)&opt
, sizeof opt
);
125 if (bind(fd
, sa
, sa_len
) < 0) {
140 fprintf(stderr
, "ERROR: failed to bind\n");
141 return INVALID_SOCKET
;
144 if (listen(fd
, 5) < 0) {
153 return INVALID_SOCKET
;
156 fprintf(stderr
, "bound.\n");
162 accept_client(SOCKET server_fd
, int verbose
)
169 fd
= accept(server_fd
, (struct sockaddr
*)&sa
, &sa_len
);
170 if (fd
== INVALID_SOCKET
) {
174 return INVALID_SOCKET
;
177 char tmp
[INET6_ADDRSTRLEN
+ 50];
181 switch (((struct sockaddr
*)&sa
)->sa_family
) {
183 name
= inet_ntop(AF_INET
,
184 &((struct sockaddr_in
*)&sa
)->sin_addr
,
188 name
= inet_ntop(AF_INET6
,
189 &((struct sockaddr_in6
*)&sa
)->sin6_addr
,
194 sprintf(tmp
, "<unknown: %lu>", (unsigned long)
195 ((struct sockaddr
*)&sa
)->sa_family
);
198 fprintf(stderr
, "accepting connection from: %s\n", name
);
202 * We make the socket non-blocking, since we are going to use
203 * poll() or select() to organise I/O.
210 ioctlsocket(fd
, FIONBIO
, &arg
);
213 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
222 "usage: brssl server [ options ]\n");
226 " -q suppress verbose messages\n");
228 " -trace activate extra debug messages (dump of all packets)\n");
230 " -b name bind to a specific address or host name\n");
232 " -p port bind to a specific port (default: 4433)\n");
234 " -mono use monodirectional buffering\n");
236 " -buf length set the I/O buffer length (in bytes)\n");
238 " -cache length set the session cache storage length (in bytes)\n");
240 " -cert fname read certificate chain from file 'fname'\n");
242 " -key fname read private key from file 'fname'\n");
244 " -CA file add trust anchors from 'file' (for client auth)\n");
246 " -anon_ok request but do not require a client certificate\n");
248 " -list list supported names (protocols, algorithms...)\n");
250 " -vmin name set minimum supported version (default: TLS-1.0)\n");
252 " -vmax name set maximum supported version (default: TLS-1.2)\n");
254 " -cs names set list of supported cipher suites (comma-separated)\n");
256 " -hf names add support for some hash functions (comma-separated)\n");
258 " -cbhash test hashing in policy callback\n");
260 " -serverpref enforce server's preferences for cipher suites\n");
262 " -noreneg prohibit renegotiations\n");
264 " -alpn name add protocol name to list of protocols (ALPN extension)\n");
266 " -strictalpn fail on ALPN mismatch\n");
271 const br_ssl_server_policy_class
*vtable
;
273 br_x509_certificate
*chain
;
275 int cert_signer_algo
;
281 print_hashes(unsigned chashes
)
285 for (i
= 2; i
<= 6; i
++) {
286 if ((chashes
>> i
) & 1) {
290 case 3: z
= 224; break;
291 case 4: z
= 256; break;
292 case 5: z
= 384; break;
293 case 6: z
= 512; break;
298 fprintf(stderr
, " sha%d", z
);
304 choose_hash(unsigned chashes
)
308 for (hash_id
= 6; hash_id
>= 2; hash_id
--) {
309 if (((chashes
>> hash_id
) & 1) != 0) {
314 * Normally unreachable.
320 sp_choose(const br_ssl_server_policy_class
**pctx
,
321 const br_ssl_server_context
*cc
,
322 br_ssl_server_choices
*choices
)
325 const br_suite_translated
*st
;
329 pc
= (policy_context
*)pctx
;
330 st
= br_ssl_server_get_client_suites(cc
, &st_num
);
331 chashes
= br_ssl_server_get_client_hashes(cc
);
333 fprintf(stderr
, "Client parameters:\n");
334 fprintf(stderr
, " Maximum version: ");
335 switch (cc
->client_max_version
) {
337 fprintf(stderr
, "SSL 3.0");
340 fprintf(stderr
, "TLS 1.0");
343 fprintf(stderr
, "TLS 1.1");
346 fprintf(stderr
, "TLS 1.2");
349 fprintf(stderr
, "unknown (0x%04X)",
350 (unsigned)cc
->client_max_version
);
353 fprintf(stderr
, "\n");
354 fprintf(stderr
, " Compatible cipher suites:\n");
355 for (u
= 0; u
< st_num
; u
++) {
358 get_suite_name_ext(st
[u
][0], csn
, sizeof csn
);
359 fprintf(stderr
, " %s\n", csn
);
361 fprintf(stderr
, " Common sign+hash functions:\n");
362 if ((chashes
& 0xFF) != 0) {
363 fprintf(stderr
, " with RSA:");
364 print_hashes(chashes
);
365 fprintf(stderr
, "\n");
367 if ((chashes
>> 8) != 0) {
368 fprintf(stderr
, " with ECDSA:");
369 print_hashes(chashes
>> 8);
370 fprintf(stderr
, "\n");
373 for (u
= 0; u
< st_num
; u
++) {
379 if (pc
->sk
->key_type
== BR_KEYTYPE_RSA
) {
380 choices
->cipher_suite
= st
[u
][0];
384 case BR_SSLKEYX_ECDHE_RSA
:
385 if (pc
->sk
->key_type
== BR_KEYTYPE_RSA
) {
386 choices
->cipher_suite
= st
[u
][0];
387 if (br_ssl_engine_get_version(&cc
->eng
)
391 choices
->algo_id
= 0x0001;
393 choices
->algo_id
= 0xFF00;
398 id
= choose_hash(chashes
);
403 choices
->algo_id
= 0xFF00 + id
;
409 case BR_SSLKEYX_ECDHE_ECDSA
:
410 if (pc
->sk
->key_type
== BR_KEYTYPE_EC
) {
411 choices
->cipher_suite
= st
[u
][0];
412 if (br_ssl_engine_get_version(&cc
->eng
)
416 choices
->algo_id
= 0x0203;
424 id
= choose_hash(chashes
>> 8);
436 case BR_SSLKEYX_ECDH_RSA
:
437 if (pc
->sk
->key_type
== BR_KEYTYPE_EC
438 && pc
->cert_signer_algo
== BR_KEYTYPE_RSA
)
440 choices
->cipher_suite
= st
[u
][0];
444 case BR_SSLKEYX_ECDH_ECDSA
:
445 if (pc
->sk
->key_type
== BR_KEYTYPE_EC
446 && pc
->cert_signer_algo
== BR_KEYTYPE_EC
)
448 choices
->cipher_suite
= st
[u
][0];
457 choices
->chain
= pc
->chain
;
458 choices
->chain_len
= pc
->chain_len
;
462 get_suite_name_ext(choices
->cipher_suite
, csn
, sizeof csn
);
463 fprintf(stderr
, "Using: %s\n", csn
);
469 sp_do_keyx(const br_ssl_server_policy_class
**pctx
,
470 unsigned char *data
, size_t *len
)
476 pc
= (policy_context
*)pctx
;
477 switch (pc
->sk
->key_type
) {
478 const br_ec_impl
*iec
;
481 return br_rsa_ssl_decrypt(
482 br_rsa_private_get_default(),
483 &pc
->sk
->key
.rsa
, data
, *len
);
485 iec
= br_ec_get_default();
486 r
= iec
->mul(data
, *len
, pc
->sk
->key
.ec
.x
,
487 pc
->sk
->key
.ec
.xlen
, pc
->sk
->key
.ec
.curve
);
488 xoff
= iec
->xoff(pc
->sk
->key
.ec
.curve
, &xlen
);
489 memmove(data
, data
+ xoff
, xlen
);
493 fprintf(stderr
, "ERROR: unknown private key type (%d)\n",
494 (int)pc
->sk
->key_type
);
500 sp_do_sign(const br_ssl_server_policy_class
**pctx
,
501 unsigned algo_id
, unsigned char *data
, size_t hv_len
, size_t len
)
504 unsigned char hv
[64];
506 pc
= (policy_context
*)pctx
;
507 if (algo_id
>= 0xFF00) {
509 memcpy(hv
, data
, hv_len
);
511 const br_hash_class
*hc
;
512 br_hash_compat_context zc
;
515 fprintf(stderr
, "Callback hashing, algo = 0x%04X,"
517 algo_id
, (unsigned long)hv_len
);
520 hc
= get_hash_impl(algo_id
);
524 "ERROR: unsupported hash function %u\n",
529 hc
->init(&zc
.vtable
);
530 hc
->update(&zc
.vtable
, data
, hv_len
);
531 hc
->out(&zc
.vtable
, hv
);
532 hv_len
= (hc
->desc
>> BR_HASHDESC_OUT_OFF
)
533 & BR_HASHDESC_OUT_MASK
;
535 switch (pc
->sk
->key_type
) {
538 const unsigned char *hash_oid
;
539 const br_hash_class
*hc
;
542 hash_oid
= get_hash_oid(algo_id
);
543 if (hash_oid
== NULL
&& algo_id
!= 0) {
545 fprintf(stderr
, "ERROR: cannot RSA-sign with"
546 " unknown hash function: %u\n",
551 sig_len
= (pc
->sk
->key
.rsa
.n_bitlen
+ 7) >> 3;
554 fprintf(stderr
, "ERROR: cannot RSA-sign,"
555 " buffer is too small"
556 " (sig=%lu, buf=%lu)\n",
557 (unsigned long)sig_len
,
562 x
= br_rsa_pkcs1_sign_get_default()(
563 hash_oid
, hv
, hv_len
, &pc
->sk
->key
.rsa
, data
);
566 fprintf(stderr
, "ERROR: RSA-sign failure\n");
573 hc
= get_hash_impl(algo_id
);
576 fprintf(stderr
, "ERROR: cannot ECDSA-sign with"
577 " unknown hash function: %u\n",
584 fprintf(stderr
, "ERROR: cannot ECDSA-sign"
585 " (output buffer = %lu)\n",
590 sig_len
= br_ecdsa_sign_asn1_get_default()(
591 br_ec_get_default(), hc
, hv
, &pc
->sk
->key
.ec
, data
);
594 fprintf(stderr
, "ERROR: ECDSA-sign failure\n");
605 static const br_ssl_server_policy_class policy_vtable
= {
606 sizeof(policy_context
),
613 free_alpn(void *alpn
)
615 xfree(*(char **)alpn
);
620 do_server(int argc
, char *argv
[])
626 const char *bind_name
;
629 cipher_suite
*suites
;
634 br_x509_certificate
*chain
;
636 int cert_signer_algo
;
638 anchor_list anchors
= VEC_INIT
;
639 VECTOR(char *) alpn_names
= VEC_INIT
;
640 br_x509_minimal_context xc
;
641 const br_hash_class
*dnhash
;
643 br_ssl_server_context cc
;
645 br_ssl_session_cache_lru lru
;
646 unsigned char *iobuf
, *cache
;
647 size_t iobuf_len
, cache_len
;
649 SOCKET server_fd
, fd
;
670 cache_len
= (size_t)-1;
672 server_fd
= INVALID_SOCKET
;
674 for (i
= 0; i
< argc
; i
++) {
680 goto server_exit_error
;
682 if (eqstr(arg
, "-v") || eqstr(arg
, "-verbose")) {
684 } else if (eqstr(arg
, "-q") || eqstr(arg
, "-quiet")) {
686 } else if (eqstr(arg
, "-trace")) {
688 } else if (eqstr(arg
, "-b")) {
691 "ERROR: no argument for '-b'\n");
693 goto server_exit_error
;
695 if (bind_name
!= NULL
) {
696 fprintf(stderr
, "ERROR: duplicate bind host\n");
698 goto server_exit_error
;
701 } else if (eqstr(arg
, "-p")) {
704 "ERROR: no argument for '-p'\n");
706 goto server_exit_error
;
709 fprintf(stderr
, "ERROR: duplicate bind port\n");
711 goto server_exit_error
;
714 } else if (eqstr(arg
, "-mono")) {
716 } else if (eqstr(arg
, "-buf")) {
719 "ERROR: no argument for '-buf'\n");
721 goto server_exit_error
;
724 if (iobuf_len
!= 0) {
726 "ERROR: duplicate I/O buffer length\n");
728 goto server_exit_error
;
730 iobuf_len
= parse_size(arg
);
731 if (iobuf_len
== (size_t)-1) {
733 goto server_exit_error
;
735 } else if (eqstr(arg
, "-cache")) {
738 "ERROR: no argument for '-cache'\n");
740 goto server_exit_error
;
743 if (cache_len
!= (size_t)-1) {
744 fprintf(stderr
, "ERROR: duplicate session"
747 goto server_exit_error
;
749 cache_len
= parse_size(arg
);
750 if (cache_len
== (size_t)-1) {
752 goto server_exit_error
;
754 } else if (eqstr(arg
, "-cert")) {
757 "ERROR: no argument for '-cert'\n");
759 goto server_exit_error
;
763 "ERROR: duplicate certificate chain\n");
765 goto server_exit_error
;
768 chain
= read_certificates(arg
, &chain_len
);
769 if (chain
== NULL
|| chain_len
== 0) {
770 goto server_exit_error
;
772 } else if (eqstr(arg
, "-key")) {
775 "ERROR: no argument for '-key'\n");
777 goto server_exit_error
;
781 "ERROR: duplicate private key\n");
783 goto server_exit_error
;
786 sk
= read_private_key(arg
);
788 goto server_exit_error
;
790 } else if (eqstr(arg
, "-CA")) {
793 "ERROR: no argument for '-CA'\n");
795 goto server_exit_error
;
798 if (read_trust_anchors(&anchors
, arg
) == 0) {
800 goto server_exit_error
;
802 } else if (eqstr(arg
, "-anon_ok")) {
803 flags
|= BR_OPT_TOLERATE_NO_CLIENT_AUTH
;
804 } else if (eqstr(arg
, "-list")) {
807 } else if (eqstr(arg
, "-vmin")) {
810 "ERROR: no argument for '-vmin'\n");
812 goto server_exit_error
;
817 "ERROR: duplicate minimum version\n");
819 goto server_exit_error
;
821 vmin
= parse_version(arg
, strlen(arg
));
824 "ERROR: unrecognised version '%s'\n",
827 goto server_exit_error
;
829 } else if (eqstr(arg
, "-vmax")) {
832 "ERROR: no argument for '-vmax'\n");
834 goto server_exit_error
;
839 "ERROR: duplicate maximum version\n");
841 goto server_exit_error
;
843 vmax
= parse_version(arg
, strlen(arg
));
846 "ERROR: unrecognised version '%s'\n",
849 goto server_exit_error
;
851 } else if (eqstr(arg
, "-cs")) {
854 "ERROR: no argument for '-cs'\n");
856 goto server_exit_error
;
859 if (suites
!= NULL
) {
860 fprintf(stderr
, "ERROR: duplicate list"
861 " of cipher suites\n");
863 goto server_exit_error
;
865 suites
= parse_suites(arg
, &num_suites
);
866 if (suites
== NULL
) {
868 goto server_exit_error
;
870 } else if (eqstr(arg
, "-hf")) {
875 "ERROR: no argument for '-hf'\n");
877 goto server_exit_error
;
880 x
= parse_hash_functions(arg
);
883 goto server_exit_error
;
886 } else if (eqstr(arg
, "-cbhash")) {
888 } else if (eqstr(arg
, "-serverpref")) {
889 flags
|= BR_OPT_ENFORCE_SERVER_PREFERENCES
;
890 } else if (eqstr(arg
, "-noreneg")) {
891 flags
|= BR_OPT_NO_RENEGOTIATION
;
892 } else if (eqstr(arg
, "-alpn")) {
895 "ERROR: no argument for '-alpn'\n");
897 goto server_exit_error
;
899 VEC_ADD(alpn_names
, xstrdup(argv
[i
]));
900 } else if (eqstr(arg
, "-strictalpn")) {
901 flags
|= BR_OPT_FAIL_ON_ALPN_MISMATCH
;
903 fprintf(stderr
, "ERROR: unknown option: '%s'\n", arg
);
905 goto server_exit_error
;
918 fprintf(stderr
, "ERROR: impossible minimum/maximum protocol"
919 " version combination\n");
921 goto server_exit_error
;
923 if (suites
== NULL
) {
926 for (u
= 0; cipher_suites
[u
].name
; u
++) {
927 if ((cipher_suites
[u
].req
& REQ_TLS12
) == 0
933 suites
= xmalloc(num_suites
* sizeof *suites
);
935 for (u
= 0; cipher_suites
[u
].name
; u
++) {
936 if ((cipher_suites
[u
].req
& REQ_TLS12
) == 0
939 suites
[num_suites
++] = cipher_suites
[u
];
944 hfuns
= (unsigned)-1;
946 if (chain
== NULL
|| chain_len
== 0) {
947 fprintf(stderr
, "ERROR: no certificate chain provided\n");
948 goto server_exit_error
;
951 fprintf(stderr
, "ERROR: no private key provided\n");
952 goto server_exit_error
;
954 switch (sk
->key_type
) {
961 curve
= sk
->key
.ec
.curve
;
962 supp
= br_ec_get_default()->supported_curves
;
963 if (curve
> 31 || !((supp
>> curve
) & 1)) {
964 fprintf(stderr
, "ERROR: private key curve (%d)"
965 " is not supported\n", curve
);
966 goto server_exit_error
;
970 fprintf(stderr
, "ERROR: unsupported private key type (%d)\n",
974 cert_signer_algo
= get_cert_signer_algo(chain
);
975 if (cert_signer_algo
== 0) {
976 goto server_exit_error
;
981 switch (cert_signer_algo
) {
982 case BR_KEYTYPE_RSA
: csas
= "RSA"; break;
983 case BR_KEYTYPE_EC
: csas
= "EC"; break;
988 fprintf(stderr
, "Issuing CA key type: %d (%s)\n",
989 cert_signer_algo
, csas
);
991 if (iobuf_len
== 0) {
993 iobuf_len
= BR_SSL_BUFSIZE_BIDI
;
995 iobuf_len
= BR_SSL_BUFSIZE_MONO
;
998 iobuf
= xmalloc(iobuf_len
);
999 if (cache_len
== (size_t)-1) {
1002 cache
= xmalloc(cache_len
);
1005 * Compute implementation requirements and inject implementations.
1007 suite_ids
= xmalloc(num_suites
* sizeof *suite_ids
);
1008 br_ssl_server_zero(&cc
);
1009 br_ssl_engine_set_versions(&cc
.eng
, vmin
, vmax
);
1010 br_ssl_engine_set_all_flags(&cc
.eng
, flags
);
1011 if (vmin
<= BR_TLS11
) {
1012 if (!(hfuns
& (1 << br_md5_ID
))) {
1013 fprintf(stderr
, "ERROR: TLS 1.0 and 1.1 need MD5\n");
1014 goto server_exit_error
;
1016 if (!(hfuns
& (1 << br_sha1_ID
))) {
1017 fprintf(stderr
, "ERROR: TLS 1.0 and 1.1 need SHA-1\n");
1018 goto server_exit_error
;
1021 for (u
= 0; u
< num_suites
; u
++) {
1024 req
= suites
[u
].req
;
1025 suite_ids
[u
] = suites
[u
].suite
;
1026 if ((req
& REQ_TLS12
) != 0 && vmax
< BR_TLS12
) {
1028 "ERROR: cipher suite %s requires TLS 1.2\n",
1030 goto server_exit_error
;
1032 if ((req
& REQ_SHA1
) != 0 && !(hfuns
& (1 << br_sha1_ID
))) {
1034 "ERROR: cipher suite %s requires SHA-1\n",
1036 goto server_exit_error
;
1038 if ((req
& REQ_SHA256
) != 0 && !(hfuns
& (1 << br_sha256_ID
))) {
1040 "ERROR: cipher suite %s requires SHA-256\n",
1042 goto server_exit_error
;
1044 if ((req
& REQ_SHA384
) != 0 && !(hfuns
& (1 << br_sha384_ID
))) {
1046 "ERROR: cipher suite %s requires SHA-384\n",
1048 goto server_exit_error
;
1050 /* TODO: algorithm implementation selection */
1051 if ((req
& REQ_AESCBC
) != 0) {
1052 br_ssl_engine_set_default_aes_cbc(&cc
.eng
);
1054 if ((req
& REQ_AESGCM
) != 0) {
1055 br_ssl_engine_set_default_aes_gcm(&cc
.eng
);
1057 if ((req
& REQ_CHAPOL
) != 0) {
1058 br_ssl_engine_set_default_chapol(&cc
.eng
);
1060 if ((req
& REQ_3DESCBC
) != 0) {
1061 br_ssl_engine_set_default_des_cbc(&cc
.eng
);
1063 if ((req
& (REQ_ECDHE_RSA
| REQ_ECDHE_ECDSA
)) != 0) {
1064 br_ssl_engine_set_default_ec(&cc
.eng
);
1067 br_ssl_engine_set_suites(&cc
.eng
, suite_ids
, num_suites
);
1070 for (u
= 0; hash_functions
[u
].name
; u
++) {
1071 const br_hash_class
*hc
;
1074 hc
= hash_functions
[u
].hclass
;
1075 id
= (hc
->desc
>> BR_HASHDESC_ID_OFF
) & BR_HASHDESC_ID_MASK
;
1076 if ((hfuns
& ((unsigned)1 << id
)) != 0) {
1078 br_ssl_engine_set_hash(&cc
.eng
, id
, hc
);
1081 if (vmin
<= BR_TLS11
) {
1082 br_ssl_engine_set_prf10(&cc
.eng
, &br_tls10_prf
);
1084 if (vmax
>= BR_TLS12
) {
1085 if ((hfuns
& ((unsigned)1 << br_sha256_ID
)) != 0) {
1086 br_ssl_engine_set_prf_sha256(&cc
.eng
,
1087 &br_tls12_sha256_prf
);
1089 if ((hfuns
& ((unsigned)1 << br_sha384_ID
)) != 0) {
1090 br_ssl_engine_set_prf_sha384(&cc
.eng
,
1091 &br_tls12_sha384_prf
);
1095 br_ssl_session_cache_lru_init(&lru
, cache
, cache_len
);
1096 br_ssl_server_set_cache(&cc
, &lru
.vtable
);
1098 if (VEC_LEN(alpn_names
) != 0) {
1099 br_ssl_engine_set_protocol_names(&cc
.eng
,
1100 (const char **)&VEC_ELT(alpn_names
, 0),
1101 VEC_LEN(alpn_names
));
1105 * Set the policy handler (that chooses the actual cipher suite,
1106 * selects the certificate chain, and runs the private key
1109 pc
.vtable
= &policy_vtable
;
1110 pc
.verbose
= verbose
;
1112 pc
.chain_len
= chain_len
;
1113 pc
.cert_signer_algo
= cert_signer_algo
;
1116 br_ssl_server_set_policy(&cc
, &pc
.vtable
);
1119 * If trust anchors have been configured, then set an X.509
1120 * validation engine and activate client certificate
1123 if (VEC_LEN(anchors
) != 0) {
1124 br_x509_minimal_init(&xc
, dnhash
,
1125 &VEC_ELT(anchors
, 0), VEC_LEN(anchors
));
1126 for (u
= 0; hash_functions
[u
].name
; u
++) {
1127 const br_hash_class
*hc
;
1130 hc
= hash_functions
[u
].hclass
;
1131 id
= (hc
->desc
>> BR_HASHDESC_ID_OFF
)
1132 & BR_HASHDESC_ID_MASK
;
1133 if ((hfuns
& ((unsigned)1 << id
)) != 0) {
1134 br_x509_minimal_set_hash(&xc
, id
, hc
);
1137 br_ssl_engine_set_default_rsavrfy(&cc
.eng
);
1138 br_ssl_engine_set_default_ecdsa(&cc
.eng
);
1139 br_x509_minimal_set_rsa(&xc
, br_rsa_pkcs1_vrfy_get_default());
1140 br_x509_minimal_set_ecdsa(&xc
,
1141 br_ec_get_default(), br_ecdsa_vrfy_asn1_get_default());
1142 br_ssl_engine_set_x509(&cc
.eng
, &xc
.vtable
);
1143 br_ssl_server_set_trust_anchor_names_alt(&cc
,
1144 &VEC_ELT(anchors
, 0), VEC_LEN(anchors
));
1147 br_ssl_engine_set_buffer(&cc
.eng
, iobuf
, iobuf_len
, bidi
);
1150 * On Unix systems, we need to ignore SIGPIPE.
1153 signal(SIGPIPE
, SIG_IGN
);
1157 * Open the server socket.
1159 server_fd
= host_bind(bind_name
, port
, verbose
);
1160 if (server_fd
== INVALID_SOCKET
) {
1161 goto server_exit_error
;
1165 * Process incoming clients, one at a time. Note that we do not
1166 * accept any client until the previous connection has finished:
1167 * this is voluntary, since the tool uses stdin/stdout for
1168 * application data, and thus cannot really run two connections
1174 fd
= accept_client(server_fd
, verbose
);
1175 if (fd
== INVALID_SOCKET
) {
1176 goto server_exit_error
;
1178 br_ssl_server_reset(&cc
);
1179 x
= run_ssl_engine(&cc
.eng
, fd
,
1180 (verbose
? RUN_ENGINE_VERBOSE
: 0)
1181 | (trace
? RUN_ENGINE_TRACE
: 0));
1187 fd
= INVALID_SOCKET
;
1189 goto server_exit_error
;
1194 * Release allocated structures.
1199 free_certificates(chain
, chain_len
);
1200 free_private_key(sk
);
1201 VEC_CLEAREXT(anchors
, &free_ta_contents
);
1202 VEC_CLEAREXT(alpn_names
, &free_alpn
);
1205 if (fd
!= INVALID_SOCKET
) {