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
32 #include <sys/types.h>
33 #include <sys/socket.h>
35 #include <netinet/in.h>
36 #include <arpa/inet.h>
44 host_bind(const char *host
, const char *port
, int verbose
)
46 struct addrinfo hints
, *si
, *p
;
50 memset(&hints
, 0, sizeof hints
);
51 hints
.ai_family
= PF_UNSPEC
;
52 hints
.ai_socktype
= SOCK_STREAM
;
53 err
= getaddrinfo(host
, port
, &hints
, &si
);
55 fprintf(stderr
, "ERROR: getaddrinfo(): %s\n",
60 for (p
= si
; p
!= NULL
; p
= p
->ai_next
) {
62 struct sockaddr_in sa4
;
63 struct sockaddr_in6 sa6
;
68 sa
= (struct sockaddr
*)p
->ai_addr
;
69 if (sa
->sa_family
== AF_INET
) {
70 sa4
= *(struct sockaddr_in
*)sa
;
71 sa
= (struct sockaddr
*)&sa4
;
75 sa4
.sin_addr
.s_addr
= INADDR_ANY
;
77 } else if (sa
->sa_family
== AF_INET6
) {
78 sa6
= *(struct sockaddr_in6
*)sa
;
79 sa
= (struct sockaddr
*)&sa6
;
81 addr
= &sa6
.sin6_addr
;
83 sa6
.sin6_addr
= in6addr_any
;
87 sa_len
= p
->ai_addrlen
;
90 char tmp
[INET6_ADDRSTRLEN
+ 50];
93 if (!inet_ntop(p
->ai_family
, addr
,
96 strcpy(tmp
, "<invalid>");
99 sprintf(tmp
, "<unknown family: %d>",
102 fprintf(stderr
, "binding to: %s\n", tmp
);
104 fd
= socket(p
->ai_family
, p
->ai_socktype
, p
->ai_protocol
);
112 setsockopt(fd
, SOL_SOCKET
, SO_REUSEADDR
, &opt
, sizeof opt
);
114 setsockopt(fd
, IPPROTO_IPV6
, IPV6_V6ONLY
, &opt
, sizeof opt
);
115 if (bind(fd
, sa
, sa_len
) < 0) {
126 fprintf(stderr
, "ERROR: failed to bind\n");
130 if (listen(fd
, 5) < 0) {
138 fprintf(stderr
, "bound.\n");
144 accept_client(int server_fd
, int verbose
)
151 fd
= accept(server_fd
, &sa
, &sa_len
);
159 char tmp
[INET6_ADDRSTRLEN
+ 50];
163 switch (sa
.sa_family
) {
165 name
= inet_ntop(AF_INET
,
166 &((struct sockaddr_in
*)&sa
)->sin_addr
,
170 name
= inet_ntop(AF_INET6
,
171 &((struct sockaddr_in6
*)&sa
)->sin6_addr
,
176 sprintf(tmp
, "<unknown: %lu>",
177 (unsigned long)sa
.sa_family
);
180 fprintf(stderr
, "accepting connection from: %s\n", name
);
184 * We make the socket non-blocking, since we are going to use
185 * poll() to organise I/O.
187 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
195 "usage: brssl server [ options ]\n");
199 " -q suppress verbose messages\n");
201 " -trace activate extra debug messages (dump of all packets)\n");
203 " -b name bind to a specific address or host name\n");
205 " -p port bind to a specific port (default: 4433)\n");
207 " -mono use monodirectional buffering\n");
209 " -buf length set the I/O buffer length (in bytes)\n");
211 " -cache length set the session cache storage length (in bytes)\n");
213 " -cert fname read certificate chain from file 'fname'\n");
215 " -key fname read private key from file 'fname'\n");
217 " -list list supported names (protocols, algorithms...)\n");
219 " -vmin name set minimum supported version (default: TLS-1.0)\n");
221 " -vmax name set maximum supported version (default: TLS-1.2)\n");
223 " -cs names set list of supported cipher suites (comma-separated)\n");
225 " -hf names add support for some hash functions (comma-separated)\n");
227 " -serverpref enforce server's preferences for cipher suites\n");
232 const br_ssl_server_policy_class
*vtable
;
234 br_x509_certificate
*chain
;
236 int cert_signer_algo
;
241 get_cert_signer_algo(br_x509_certificate
*xc
)
243 br_x509_decoder_context dc
;
246 br_x509_decoder_init(&dc
, 0, 0);
247 br_x509_decoder_push(&dc
, xc
->data
, xc
->data_len
);
248 err
= br_x509_decoder_last_error(&dc
);
252 return br_x509_decoder_get_signer_key_type(&dc
);
257 sp_choose(const br_ssl_server_policy_class
**pctx
,
258 const br_ssl_server_context
*cc
,
259 br_ssl_server_choices
*choices
)
262 const br_suite_translated
*st
;
267 pc
= (policy_context
*)pctx
;
268 st
= br_ssl_server_get_client_suites(cc
, &st_num
);
269 chashes
= br_ssl_server_get_client_hashes(cc
);
270 for (hash_id
= 6; hash_id
>= 2; hash_id
--) {
271 if ((chashes
>> hash_id
) & 1) {
276 fprintf(stderr
, "Client parameters:\n");
277 fprintf(stderr
, " Maximum version: ");
278 switch (cc
->client_max_version
) {
280 fprintf(stderr
, "SSL 3.0");
283 fprintf(stderr
, "TLS 1.0");
286 fprintf(stderr
, "TLS 1.1");
289 fprintf(stderr
, "TLS 1.2");
292 fprintf(stderr
, "unknown (0x%04X)",
293 (unsigned)cc
->client_max_version
);
296 fprintf(stderr
, "\n");
297 fprintf(stderr
, " Compatible cipher suites:\n");
298 for (u
= 0; u
< st_num
; u
++) {
301 get_suite_name_ext(st
[u
][0], csn
, sizeof csn
);
302 fprintf(stderr
, " %s\n", csn
);
304 fprintf(stderr
, " Common hash functions:");
305 for (u
= 2; u
<= 6; u
++) {
306 if ((chashes
>> u
) & 1) {
310 case 3: z
= 224; break;
311 case 4: z
= 256; break;
312 case 5: z
= 384; break;
313 case 6: z
= 512; break;
318 fprintf(stderr
, " sha%d", z
);
321 fprintf(stderr
, "\n");
323 for (u
= 0; u
< st_num
; u
++) {
329 if (pc
->sk
->key_type
== BR_KEYTYPE_RSA
) {
330 choices
->cipher_suite
= st
[u
][0];
334 case BR_SSLKEYX_ECDHE_RSA
:
335 if (pc
->sk
->key_type
== BR_KEYTYPE_RSA
) {
336 choices
->cipher_suite
= st
[u
][0];
337 if (br_ssl_engine_get_version(&cc
->eng
)
342 choices
->hash_id
= hash_id
;
346 case BR_SSLKEYX_ECDHE_ECDSA
:
347 if (pc
->sk
->key_type
== BR_KEYTYPE_EC
) {
348 choices
->cipher_suite
= st
[u
][0];
349 if (br_ssl_engine_get_version(&cc
->eng
)
352 hash_id
= br_sha1_ID
;
354 choices
->hash_id
= hash_id
;
358 case BR_SSLKEYX_ECDH_RSA
:
359 if (pc
->sk
->key_type
== BR_KEYTYPE_EC
360 && pc
->cert_signer_algo
== BR_KEYTYPE_RSA
)
362 choices
->cipher_suite
= st
[u
][0];
366 case BR_SSLKEYX_ECDH_ECDSA
:
367 if (pc
->sk
->key_type
== BR_KEYTYPE_EC
368 && pc
->cert_signer_algo
== BR_KEYTYPE_EC
)
370 choices
->cipher_suite
= st
[u
][0];
379 choices
->chain
= pc
->chain
;
380 choices
->chain_len
= pc
->chain_len
;
384 get_suite_name_ext(choices
->cipher_suite
, csn
, sizeof csn
);
385 fprintf(stderr
, "Using: %s\n", csn
);
391 sp_do_keyx(const br_ssl_server_policy_class
**pctx
,
392 unsigned char *data
, size_t len
)
396 pc
= (policy_context
*)pctx
;
397 switch (pc
->sk
->key_type
) {
399 return br_rsa_ssl_decrypt(
400 &br_rsa_i31_private
, &pc
->sk
->key
.rsa
,
403 return br_ec_prime_i31
.mul(data
, len
, pc
->sk
->key
.ec
.x
,
404 pc
->sk
->key
.ec
.xlen
, pc
->sk
->key
.ec
.curve
);
406 fprintf(stderr
, "ERROR: unknown private key type (%d)\n",
407 (int)pc
->sk
->key_type
);
413 * OID for hash functions in RSA signatures.
415 static const unsigned char HASH_OID_SHA1
[] = {
416 0x05, 0x2B, 0x0E, 0x03, 0x02, 0x1A
419 static const unsigned char HASH_OID_SHA224
[] = {
420 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04
423 static const unsigned char HASH_OID_SHA256
[] = {
424 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01
427 static const unsigned char HASH_OID_SHA384
[] = {
428 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02
431 static const unsigned char HASH_OID_SHA512
[] = {
432 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03
435 static const unsigned char *HASH_OID
[] = {
443 static const br_hash_class
*
444 get_hash_impl(int hash_id
)
448 for (u
= 0; hash_functions
[u
].name
; u
++) {
449 const br_hash_class
*hc
;
452 hc
= hash_functions
[u
].hclass
;
453 id
= (hc
->desc
>> BR_HASHDESC_ID_OFF
) & BR_HASHDESC_ID_MASK
;
462 sp_do_sign(const br_ssl_server_policy_class
**pctx
,
463 int hash_id
, size_t hv_len
, unsigned char *data
, size_t len
)
466 unsigned char hv
[64];
468 pc
= (policy_context
*)pctx
;
469 memcpy(hv
, data
, hv_len
);
470 switch (pc
->sk
->key_type
) {
473 const unsigned char *hash_oid
;
474 const br_hash_class
*hc
;
479 } else if (hash_id
>= 2 && hash_id
<= 6) {
480 hash_oid
= HASH_OID
[hash_id
- 2];
483 fprintf(stderr
, "ERROR: cannot RSA-sign with"
484 " unknown hash function: %d\n",
489 sig_len
= (pc
->sk
->key
.rsa
.n_bitlen
+ 7) >> 3;
492 fprintf(stderr
, "ERROR: cannot RSA-sign,"
493 " buffer is too small"
494 " (sig=%lu, buf=%lu)\n",
495 (unsigned long)sig_len
,
500 x
= br_rsa_i31_pkcs1_sign(hash_oid
, hv
, hv_len
,
501 &pc
->sk
->key
.rsa
, data
);
504 fprintf(stderr
, "ERROR: RSA-sign failure\n");
511 hc
= get_hash_impl(hash_id
);
514 fprintf(stderr
, "ERROR: cannot ECDSA-sign with"
515 " unknown hash function: %d\n",
522 fprintf(stderr
, "ERROR: cannot ECDSA-sign"
523 " (output buffer = %lu)\n",
528 sig_len
= br_ecdsa_i31_sign_asn1(&br_ec_prime_i31
,
529 hc
, hv
, &pc
->sk
->key
.ec
, data
);
532 fprintf(stderr
, "ERROR: ECDSA-sign failure\n");
543 static const br_ssl_server_policy_class policy_vtable
= {
544 sizeof(policy_context
),
552 do_server(int argc
, char *argv
[])
558 const char *bind_name
;
561 cipher_suite
*suites
;
565 br_x509_certificate
*chain
;
567 int cert_signer_algo
;
570 br_ssl_server_context cc
;
572 br_ssl_session_cache_lru lru
;
573 unsigned char *iobuf
, *cache
;
574 size_t iobuf_len
, cache_len
;
596 cache_len
= (size_t)-1;
600 for (i
= 0; i
< argc
; i
++) {
606 goto server_exit_error
;
608 if (eqstr(arg
, "-v") || eqstr(arg
, "-verbose")) {
610 } else if (eqstr(arg
, "-q") || eqstr(arg
, "-quiet")) {
612 } else if (eqstr(arg
, "-trace")) {
614 } else if (eqstr(arg
, "-b")) {
617 "ERROR: no argument for '-b'\n");
619 goto server_exit_error
;
621 if (bind_name
!= NULL
) {
622 fprintf(stderr
, "ERROR: duplicate bind host\n");
624 goto server_exit_error
;
627 } else if (eqstr(arg
, "-p")) {
630 "ERROR: no argument for '-p'\n");
632 goto server_exit_error
;
635 fprintf(stderr
, "ERROR: duplicate bind port\n");
637 goto server_exit_error
;
640 } else if (eqstr(arg
, "-mono")) {
642 } else if (eqstr(arg
, "-buf")) {
645 "ERROR: no argument for '-buf'\n");
647 goto server_exit_error
;
650 if (iobuf_len
!= 0) {
652 "ERROR: duplicate I/O buffer length\n");
654 goto server_exit_error
;
656 iobuf_len
= parse_size(arg
);
657 if (iobuf_len
== (size_t)-1) {
659 goto server_exit_error
;
661 } else if (eqstr(arg
, "-cache")) {
664 "ERROR: no argument for '-cache'\n");
666 goto server_exit_error
;
669 if (cache_len
!= (size_t)-1) {
670 fprintf(stderr
, "ERROR: duplicate session"
673 goto server_exit_error
;
675 cache_len
= parse_size(arg
);
676 if (cache_len
== (size_t)-1) {
678 goto server_exit_error
;
680 } else if (eqstr(arg
, "-cert")) {
683 "ERROR: no argument for '-cert'\n");
685 goto server_exit_error
;
689 "ERROR: duplicate certificate chain\n");
691 goto server_exit_error
;
694 chain
= read_certificates(arg
, &chain_len
);
695 if (chain
== NULL
|| chain_len
== 0) {
696 goto server_exit_error
;
698 } else if (eqstr(arg
, "-key")) {
701 "ERROR: no argument for '-key'\n");
703 goto server_exit_error
;
707 "ERROR: duplicate private key\n");
709 goto server_exit_error
;
712 sk
= read_private_key(arg
);
714 goto server_exit_error
;
716 } else if (eqstr(arg
, "-list")) {
719 } else if (eqstr(arg
, "-vmin")) {
722 "ERROR: no argument for '-vmin'\n");
724 goto server_exit_error
;
729 "ERROR: duplicate minimum version\n");
731 goto server_exit_error
;
733 vmin
= parse_version(arg
, strlen(arg
));
736 "ERROR: unrecognised version '%s'\n",
739 goto server_exit_error
;
741 } else if (eqstr(arg
, "-vmax")) {
744 "ERROR: no argument for '-vmax'\n");
746 goto server_exit_error
;
751 "ERROR: duplicate maximum version\n");
753 goto server_exit_error
;
755 vmax
= parse_version(arg
, strlen(arg
));
758 "ERROR: unrecognised version '%s'\n",
761 goto server_exit_error
;
763 } else if (eqstr(arg
, "-cs")) {
766 "ERROR: no argument for '-cs'\n");
768 goto server_exit_error
;
771 if (suites
!= NULL
) {
772 fprintf(stderr
, "ERROR: duplicate list"
773 " of cipher suites\n");
775 goto server_exit_error
;
777 suites
= parse_suites(arg
, &num_suites
);
778 if (suites
== NULL
) {
780 goto server_exit_error
;
782 } else if (eqstr(arg
, "-hf")) {
787 "ERROR: no argument for '-hf'\n");
789 goto server_exit_error
;
792 x
= parse_hash_functions(arg
);
795 goto server_exit_error
;
798 } else if (eqstr(arg
, "-serverpref")) {
799 flags
|= BR_OPT_ENFORCE_SERVER_PREFERENCES
;
800 } else if (eqstr(arg
, "-noreneg")) {
801 flags
|= BR_OPT_NO_RENEGOTIATION
;
803 fprintf(stderr
, "ERROR: unknown option: '%s'\n", arg
);
805 goto server_exit_error
;
818 fprintf(stderr
, "ERROR: impossible minimum/maximum protocol"
819 " version combination\n");
821 goto server_exit_error
;
823 if (suites
== NULL
) {
826 for (u
= 0; cipher_suites
[u
].name
; u
++) {
827 if ((cipher_suites
[u
].req
& REQ_TLS12
) == 0
833 suites
= xmalloc(num_suites
* sizeof *suites
);
835 for (u
= 0; cipher_suites
[u
].name
; u
++) {
836 if ((cipher_suites
[u
].req
& REQ_TLS12
) == 0
839 suites
[num_suites
++] = cipher_suites
[u
];
844 hfuns
= (unsigned)-1;
846 if (chain
== NULL
|| chain_len
== 0) {
847 fprintf(stderr
, "ERROR: no certificate chain provided\n");
848 goto server_exit_error
;
851 fprintf(stderr
, "ERROR: no private key provided\n");
852 goto server_exit_error
;
854 switch (sk
->key_type
) {
861 curve
= sk
->key
.ec
.curve
;
862 supp
= br_ec_prime_i31
.supported_curves
;
863 if (curve
> 31 || !((supp
>> curve
) & 1)) {
864 fprintf(stderr
, "ERROR: private key curve (%d)"
865 " is not supported\n", curve
);
866 goto server_exit_error
;
870 fprintf(stderr
, "ERROR: unsupported private key type (%d)\n",
874 cert_signer_algo
= get_cert_signer_algo(chain
);
875 if (cert_signer_algo
< 0) {
876 fprintf(stderr
, "ERROR: server certificate cannot be"
877 " decoded (err=%d)\n", -cert_signer_algo
);
878 goto server_exit_error
;
879 } else if (verbose
) {
882 switch (cert_signer_algo
) {
883 case BR_KEYTYPE_RSA
: csas
= "RSA"; break;
884 case BR_KEYTYPE_EC
: csas
= "EC"; break;
889 fprintf(stderr
, "Issuing CA key type: %d (%s)\n",
890 cert_signer_algo
, csas
);
892 if (iobuf_len
== 0) {
894 iobuf_len
= BR_SSL_BUFSIZE_BIDI
;
896 iobuf_len
= BR_SSL_BUFSIZE_MONO
;
899 iobuf
= xmalloc(iobuf_len
);
900 if (cache_len
== (size_t)-1) {
903 cache
= xmalloc(cache_len
);
906 * Compute implementation requirements and inject implementations.
908 suite_ids
= xmalloc(num_suites
* sizeof *suite_ids
);
909 br_ssl_server_zero(&cc
);
910 br_ssl_engine_set_versions(&cc
.eng
, vmin
, vmax
);
911 br_ssl_engine_set_all_flags(&cc
.eng
, flags
);
912 if (vmin
<= BR_TLS11
) {
913 if (!(hfuns
& (1 << br_md5_ID
))) {
914 fprintf(stderr
, "ERROR: TLS 1.0 and 1.1 need MD5\n");
915 goto server_exit_error
;
917 if (!(hfuns
& (1 << br_sha1_ID
))) {
918 fprintf(stderr
, "ERROR: TLS 1.0 and 1.1 need SHA-1\n");
919 goto server_exit_error
;
922 for (u
= 0; u
< num_suites
; u
++) {
926 suite_ids
[u
] = suites
[u
].suite
;
927 if ((req
& REQ_TLS12
) != 0 && vmax
< BR_TLS12
) {
929 "ERROR: cipher suite %s requires TLS 1.2\n",
931 goto server_exit_error
;
933 if ((req
& REQ_SHA1
) != 0 && !(hfuns
& (1 << br_sha1_ID
))) {
935 "ERROR: cipher suite %s requires SHA-1\n",
937 goto server_exit_error
;
939 if ((req
& REQ_SHA256
) != 0 && !(hfuns
& (1 << br_sha256_ID
))) {
941 "ERROR: cipher suite %s requires SHA-256\n",
943 goto server_exit_error
;
945 if ((req
& REQ_SHA384
) != 0 && !(hfuns
& (1 << br_sha384_ID
))) {
947 "ERROR: cipher suite %s requires SHA-384\n",
949 goto server_exit_error
;
951 /* TODO: algorithm implementation selection */
952 if ((req
& REQ_AESCBC
) != 0) {
953 br_ssl_engine_set_aes_cbc(&cc
.eng
,
954 &br_aes_ct_cbcenc_vtable
,
955 &br_aes_ct_cbcdec_vtable
);
956 br_ssl_engine_set_cbc(&cc
.eng
,
957 &br_sslrec_in_cbc_vtable
,
958 &br_sslrec_out_cbc_vtable
);
960 if ((req
& REQ_AESGCM
) != 0) {
961 br_ssl_engine_set_aes_ctr(&cc
.eng
,
962 &br_aes_ct_ctr_vtable
);
963 br_ssl_engine_set_ghash(&cc
.eng
,
965 br_ssl_engine_set_gcm(&cc
.eng
,
966 &br_sslrec_in_gcm_vtable
,
967 &br_sslrec_out_gcm_vtable
);
969 if ((req
& REQ_3DESCBC
) != 0) {
970 br_ssl_engine_set_des_cbc(&cc
.eng
,
971 &br_des_ct_cbcenc_vtable
,
972 &br_des_ct_cbcdec_vtable
);
973 br_ssl_engine_set_cbc(&cc
.eng
,
974 &br_sslrec_in_cbc_vtable
,
975 &br_sslrec_out_cbc_vtable
);
977 if ((req
& (REQ_ECDHE_RSA
| REQ_ECDHE_ECDSA
)) != 0) {
978 br_ssl_engine_set_ec(&cc
.eng
, &br_ec_prime_i31
);
981 br_ssl_engine_set_suites(&cc
.eng
, suite_ids
, num_suites
);
983 for (u
= 0; hash_functions
[u
].name
; u
++) {
984 const br_hash_class
*hc
;
987 hc
= hash_functions
[u
].hclass
;
988 id
= (hc
->desc
>> BR_HASHDESC_ID_OFF
) & BR_HASHDESC_ID_MASK
;
989 if ((hfuns
& ((unsigned)1 << id
)) != 0) {
990 br_ssl_engine_set_hash(&cc
.eng
, id
, hc
);
993 if (vmin
<= BR_TLS11
) {
994 br_ssl_engine_set_prf10(&cc
.eng
, &br_tls10_prf
);
996 if (vmax
>= BR_TLS12
) {
997 if ((hfuns
& ((unsigned)1 << br_sha256_ID
)) != 0) {
998 br_ssl_engine_set_prf_sha256(&cc
.eng
,
999 &br_tls12_sha256_prf
);
1001 if ((hfuns
& ((unsigned)1 << br_sha384_ID
)) != 0) {
1002 br_ssl_engine_set_prf_sha384(&cc
.eng
,
1003 &br_tls12_sha384_prf
);
1007 br_ssl_session_cache_lru_init(&lru
, cache
, cache_len
);
1008 br_ssl_server_set_cache(&cc
, &lru
.vtable
);
1010 pc
.vtable
= &policy_vtable
;
1011 pc
.verbose
= verbose
;
1013 pc
.chain_len
= chain_len
;
1014 pc
.cert_signer_algo
= cert_signer_algo
;
1016 br_ssl_server_set_policy(&cc
, &pc
.vtable
);
1018 br_ssl_engine_set_buffer(&cc
.eng
, iobuf
, iobuf_len
, bidi
);
1021 * We need to ignore SIGPIPE.
1023 signal(SIGPIPE
, SIG_IGN
);
1026 * Open the server socket.
1028 server_fd
= host_bind(bind_name
, port
, verbose
);
1029 if (server_fd
< 0) {
1030 goto server_exit_error
;
1034 * Process incoming clients, one at a time. Note that we do not
1035 * accept any client until the previous connection has finished:
1036 * this is voluntary, since the tool uses stdin/stdout for
1037 * application data, and thus cannot really run two connections
1043 fd
= accept_client(server_fd
, verbose
);
1045 goto server_exit_error
;
1047 br_ssl_server_reset(&cc
);
1048 x
= run_ssl_engine(&cc
.eng
, fd
,
1049 (verbose
? RUN_ENGINE_VERBOSE
: 0)
1050 | (trace
? RUN_ENGINE_TRACE
: 0));
1054 goto server_exit_error
;
1059 * Release allocated structures.
1064 if (chain
!= NULL
) {
1065 for (u
= 0; u
< chain_len
; u
++) {
1066 xfree(chain
[u
].data
);
1070 free_private_key(sk
);