2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
113 #include <openssl/objects.h>
114 #include "ssl_locl.h"
116 const char *tls1_version_str="TLSv1" OPENSSL_VERSION_PTEXT;
118 SSL3_ENC_METHOD TLSv1_enc_data={
121 tls1_setup_key_block,
122 tls1_generate_master_secret,
123 tls1_change_cipher_state,
124 tls1_final_finish_mac,
125 TLS1_FINISH_MAC_LENGTH,
126 tls1_cert_verify_mac,
127 TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
128 TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
132 long tls1_default_timeout(void)
134 /* 2 hours, the 24 hours mentioned in the TLSv1 spec
135 * is way too long for http, the cache would over fill */
141 if (!ssl3_new(s)) return(0);
142 s->method->ssl_clear(s);
146 void tls1_free(SSL *s)
151 void tls1_clear(SSL *s)
154 s->version=TLS1_VERSION;
158 #ifndef OPENSSL_NO_TLSEXT
159 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit)
162 unsigned char *ret = p;
166 if (ret>=limit) return NULL; /* this really never occurs, but ... */
167 if (s->servername_done == 0 && s->tlsext_hostname != NULL)
169 /* Add TLS extension servername to the Client Hello message */
170 unsigned long size_str;
173 if ((lenmax = limit - p - 7) < 0) return NULL;
174 if ((size_str = strlen(s->tlsext_hostname)) > (unsigned long)lenmax) return NULL;
176 s2n(TLSEXT_TYPE_server_name,ret);
178 *(ret++) = (unsigned char) TLSEXT_NAMETYPE_host_name;
181 memcpy(ret, s->tlsext_hostname, size_str);
184 #ifndef OPENSSL_NO_EC
185 if (s->tlsext_ecpointformatlist != NULL)
187 /* Add TLS extension ECPointFormats to the ClientHello message */
190 if ((lenmax = limit - p - 5) < 0) return NULL;
191 if (s->tlsext_ecpointformatlist_length > (unsigned long)lenmax) return NULL;
192 if (s->tlsext_ecpointformatlist_length > 255)
194 SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
198 s2n(TLSEXT_TYPE_ec_point_formats,ret);
199 s2n(s->tlsext_ecpointformatlist_length + 1,ret);
200 *(ret++) = (unsigned char) s->tlsext_ecpointformatlist_length;
201 memcpy(ret, s->tlsext_ecpointformatlist, s->tlsext_ecpointformatlist_length);
202 ret+=s->tlsext_ecpointformatlist_length;
204 if (s->tlsext_ellipticcurvelist != NULL)
206 /* Add TLS extension EllipticCurves to the ClientHello message */
209 if ((lenmax = limit - p - 5) < 0) return NULL;
210 if (s->tlsext_ellipticcurvelist_length > (unsigned long)lenmax) return NULL;
211 if (s->tlsext_ellipticcurvelist_length > 255)
213 SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
217 s2n(TLSEXT_TYPE_elliptic_curves,ret);
218 s2n(s->tlsext_ellipticcurvelist_length + 2,ret);
219 *(ret++) = (unsigned char) ((s->tlsext_ellipticcurvelist_length >> 8) & 0xFF);
220 *(ret++) = (unsigned char) (s->tlsext_ellipticcurvelist_length & 0xFF);
221 memcpy(ret, s->tlsext_ellipticcurvelist, s->tlsext_ellipticcurvelist_length);
222 ret+=s->tlsext_ellipticcurvelist_length;
224 #endif /* OPENSSL_NO_EC */
226 if ((extdatalen = ret-p-2)== 0)
233 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit)
236 unsigned char *ret = p;
239 if (ret>=limit) return NULL; /* this really never occurs, but ... */
241 if (!s->hit && s->servername_done == 1 && s->session->tlsext_hostname != NULL)
243 if (limit - p - 4 < 0) return NULL;
245 s2n(TLSEXT_TYPE_server_name,ret);
248 #ifndef OPENSSL_NO_EC
249 if (s->tlsext_ecpointformatlist != NULL)
251 /* Add TLS extension ECPointFormats to the ServerHello message */
254 if ((lenmax = limit - p - 5) < 0) return NULL;
255 if (s->tlsext_ecpointformatlist_length > (unsigned long)lenmax) return NULL;
256 if (s->tlsext_ecpointformatlist_length > 255)
258 SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);
262 s2n(TLSEXT_TYPE_ec_point_formats,ret);
263 s2n(s->tlsext_ecpointformatlist_length + 1,ret);
264 *(ret++) = (unsigned char) s->tlsext_ecpointformatlist_length;
265 memcpy(ret, s->tlsext_ecpointformatlist, s->tlsext_ecpointformatlist_length);
266 ret+=s->tlsext_ecpointformatlist_length;
268 /* Currently the server should not respond with a SupportedCurves extension */
269 #endif /* OPENSSL_NO_EC */
271 if ((extdatalen = ret-p-2)== 0)
278 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char *d, int n, int *al)
283 unsigned char *data = *p;
285 fprintf(stderr,"ssl_parse_clienthello_tlsext %s\n",s->session->tlsext_hostname?s->session->tlsext_hostname:"NULL");
287 s->servername_done = 0;
293 if (data > (d+n-len))
296 while (data <= (d+n-4))
301 if (data+size > (d+n))
304 /* The servername extension is treated as follows:
306 - Only the hostname type is supported with a maximum length of 255.
307 - The servername is rejected if too long or if it contains zeros,
308 in which case an fatal alert is generated.
309 - The servername field is maintained together with the session cache.
310 - When a session is resumed, the servername call back invoked in order
311 to allow the application to position itself to the right context.
312 - The servername is acknowledged if it is new for a session or when
313 it is identical to a previously used for the same session.
314 Applications can control the behaviour. They can at any time
315 set a 'desirable' servername for a new SSL object. This can be the
316 case for example with HTTPS when a Host: header field is received and
317 a renegotiation is requested. In this case, a possible servername
318 presented in the new client hello is only acknowledged if it matches
319 the value of the Host: field.
320 - Applications must use SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
321 if they provide for changing an explicit servername context for the session,
322 i.e. when the session has been established with a servername extension.
323 - On session reconnect, the servername extension may be absent.
327 if (type == TLSEXT_TYPE_server_name)
329 unsigned char *sdata = data;
335 servname_type = *(sdata++);
339 *al = SSL_AD_DECODE_ERROR;
343 switch (servname_type)
345 case TLSEXT_NAMETYPE_host_name:
346 if (s->session->tlsext_hostname == NULL)
348 if (len > TLSEXT_MAXLEN_host_name ||
349 ((s->session->tlsext_hostname = OPENSSL_malloc(len+1)) == NULL))
351 *al = TLS1_AD_UNRECOGNIZED_NAME;
354 memcpy(s->session->tlsext_hostname, sdata, len);
355 s->session->tlsext_hostname[len]='\0';
356 if (strlen(s->session->tlsext_hostname) != len) {
357 OPENSSL_free(s->session->tlsext_hostname);
358 *al = TLS1_AD_UNRECOGNIZED_NAME;
361 s->servername_done = 1;
364 fprintf(stderr,"ssl_parse_clienthello_tlsext s->session->tlsext_hostname %s\n",s->session->tlsext_hostname);
368 s->servername_done = strlen(s->session->tlsext_hostname) == len
369 && strncmp(s->session->tlsext_hostname, (char *)sdata, len) == 0;
380 #ifndef OPENSSL_NO_EC
381 else if (type == TLSEXT_TYPE_ec_point_formats)
383 unsigned char *sdata = data;
384 int ecpointformatlist_length = *(sdata++);
386 if (ecpointformatlist_length != size - 1)
388 *al = TLS1_AD_DECODE_ERROR;
391 s->session->tlsext_ecpointformatlist_length = 0;
392 if (s->session->tlsext_ecpointformatlist != NULL) OPENSSL_free(s->session->tlsext_ecpointformatlist);
393 if ((s->session->tlsext_ecpointformatlist = OPENSSL_malloc(ecpointformatlist_length)) == NULL)
395 *al = TLS1_AD_INTERNAL_ERROR;
398 s->session->tlsext_ecpointformatlist_length = ecpointformatlist_length;
399 memcpy(s->session->tlsext_ecpointformatlist, sdata, ecpointformatlist_length);
401 fprintf(stderr,"ssl_parse_clienthello_tlsext s->session->tlsext_ecpointformatlist (length=%i) ", s->session->tlsext_ecpointformatlist_length);
402 sdata = s->session->tlsext_ecpointformatlist;
403 for (i = 0; i < s->session->tlsext_ecpointformatlist_length; i++)
404 fprintf(stderr,"%i ",*(sdata++));
405 fprintf(stderr,"\n");
408 else if (type == TLSEXT_TYPE_elliptic_curves)
410 unsigned char *sdata = data;
411 int ellipticcurvelist_length = (*(sdata++) << 8);
412 ellipticcurvelist_length += (*(sdata++));
414 if (ellipticcurvelist_length != size - 2)
416 *al = TLS1_AD_DECODE_ERROR;
419 s->session->tlsext_ellipticcurvelist_length = 0;
420 if (s->session->tlsext_ellipticcurvelist != NULL) OPENSSL_free(s->session->tlsext_ellipticcurvelist);
421 if ((s->session->tlsext_ellipticcurvelist = OPENSSL_malloc(ellipticcurvelist_length)) == NULL)
423 *al = TLS1_AD_INTERNAL_ERROR;
426 s->session->tlsext_ellipticcurvelist_length = ellipticcurvelist_length;
427 memcpy(s->session->tlsext_ellipticcurvelist, sdata, ellipticcurvelist_length);
429 fprintf(stderr,"ssl_parse_clienthello_tlsext s->session->tlsext_ellipticcurvelist (length=%i) ", s->session->tlsext_ellipticcurvelist_length);
430 sdata = s->session->tlsext_ellipticcurvelist;
431 for (i = 0; i < s->session->tlsext_ellipticcurvelist_length; i++)
432 fprintf(stderr,"%i ",*(sdata++));
433 fprintf(stderr,"\n");
436 #endif /* OPENSSL_NO_EC */
444 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, int n, int *al)
449 unsigned char *data = *p;
451 int tlsext_servername = 0;
458 while(data <= (d+n-4))
463 if (data+size > (d+n))
466 if (type == TLSEXT_TYPE_server_name)
468 if (s->tlsext_hostname == NULL || size > 0)
470 *al = TLS1_AD_UNRECOGNIZED_NAME;
473 tlsext_servername = 1;
476 #ifndef OPENSSL_NO_EC
477 else if (type == TLSEXT_TYPE_ec_point_formats)
479 unsigned char *sdata = data;
480 int ecpointformatlist_length = *(sdata++);
482 if (ecpointformatlist_length != size - 1)
484 *al = TLS1_AD_DECODE_ERROR;
487 s->session->tlsext_ecpointformatlist_length = 0;
488 if (s->session->tlsext_ecpointformatlist != NULL) OPENSSL_free(s->session->tlsext_ecpointformatlist);
489 if ((s->session->tlsext_ecpointformatlist = OPENSSL_malloc(ecpointformatlist_length)) == NULL)
491 *al = TLS1_AD_INTERNAL_ERROR;
494 s->session->tlsext_ecpointformatlist_length = ecpointformatlist_length;
495 memcpy(s->session->tlsext_ecpointformatlist, sdata, ecpointformatlist_length);
497 fprintf(stderr,"ssl_parse_serverhello_tlsext s->session->tlsext_ecpointformatlist ");
498 sdata = s->session->tlsext_ecpointformatlist;
499 for (i = 0; i < s->session->tlsext_ecpointformatlist_length; i++)
500 fprintf(stderr,"%i ",*(sdata++));
501 fprintf(stderr,"\n");
504 #endif /* OPENSSL_NO_EC */
510 *al = SSL_AD_DECODE_ERROR;
514 if (!s->hit && tlsext_servername == 1)
516 if (s->tlsext_hostname)
518 if (s->session->tlsext_hostname == NULL)
520 s->session->tlsext_hostname = BUF_strdup(s->tlsext_hostname);
521 if (!s->session->tlsext_hostname)
523 *al = SSL_AD_UNRECOGNIZED_NAME;
529 *al = SSL_AD_DECODE_ERROR;
539 int ssl_prepare_clienthello_tlsext(SSL *s)
541 #ifndef OPENSSL_NO_EC
542 /* If we are client and using an elliptic curve cryptography cipher suite, send the point formats
543 * and elliptic curves we support.
549 STACK_OF(SSL_CIPHER) *cipher_stack = SSL_get_ciphers(s);
550 for (i = 0; i < sk_SSL_CIPHER_num(cipher_stack); i++)
552 algs = (sk_SSL_CIPHER_value(cipher_stack, i))->algorithms;
553 if ((algs & SSL_kECDH) || (algs & SSL_kECDHE) || (algs & SSL_aECDSA))
560 using_ecc = using_ecc && (s->version == TLS1_VERSION);
563 if (s->tlsext_ecpointformatlist != NULL) OPENSSL_free(s->tlsext_ecpointformatlist);
564 if ((s->tlsext_ecpointformatlist = OPENSSL_malloc(3)) == NULL)
566 SSLerr(SSL_F_TLS1_PREPARE_CLIENTHELLO_TLSEXT,ERR_R_MALLOC_FAILURE);
569 s->tlsext_ecpointformatlist_length = 3;
570 s->tlsext_ecpointformatlist[0] = TLSEXT_ECPOINTFORMAT_uncompressed;
571 s->tlsext_ecpointformatlist[1] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime;
572 s->tlsext_ecpointformatlist[2] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2;
573 /* we support all named elliptic curves in draft-ietf-tls-ecc-12 */
574 if (s->tlsext_ellipticcurvelist != NULL) OPENSSL_free(s->tlsext_ellipticcurvelist);
575 if ((s->tlsext_ellipticcurvelist = OPENSSL_malloc(50)) == NULL)
577 SSLerr(SSL_F_TLS1_PREPARE_CLIENTHELLO_TLSEXT,ERR_R_MALLOC_FAILURE);
580 s->tlsext_ellipticcurvelist_length = 50;
581 for (i = 1, j = s->tlsext_ellipticcurvelist; i <= 25; i++)
587 #endif /* OPENSSL_NO_EC */
591 int ssl_prepare_serverhello_tlsext(SSL *s)
593 #ifndef OPENSSL_NO_EC
594 /* If we are server and using an ECC cipher suite, send the point formats we support
595 * if the client sent us an ECPointsFormat extension. Note that the server is not
596 * supposed to send an EllipticCurves extension.
598 int algs = s->s3->tmp.new_cipher->algorithms;
599 int using_ecc = (algs & SSL_kECDH) || (algs & SSL_kECDHE) || (algs & SSL_aECDSA);
600 using_ecc = using_ecc && (s->session->tlsext_ecpointformatlist != NULL);
604 if (s->tlsext_ecpointformatlist != NULL) OPENSSL_free(s->tlsext_ecpointformatlist);
605 if ((s->tlsext_ecpointformatlist = OPENSSL_malloc(3)) == NULL)
607 SSLerr(SSL_F_TLS1_PREPARE_SERVERHELLO_TLSEXT,ERR_R_MALLOC_FAILURE);
610 s->tlsext_ecpointformatlist_length = 3;
611 s->tlsext_ecpointformatlist[0] = TLSEXT_ECPOINTFORMAT_uncompressed;
612 s->tlsext_ecpointformatlist[1] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime;
613 s->tlsext_ecpointformatlist[2] = TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2;
615 #endif /* OPENSSL_NO_EC */
619 int ssl_check_clienthello_tlsext(SSL *s)
621 int ret=SSL_TLSEXT_ERR_NOACK;
622 int al = SSL_AD_UNRECOGNIZED_NAME;
624 #ifndef OPENSSL_NO_EC
625 /* The handling of the ECPointFormats extension is done elsewhere, namely in
626 * ssl3_choose_cipher in s3_lib.c.
628 /* The handling of the EllipticCurves extension is done elsewhere, namely in
629 * ssl3_choose_cipher in s3_lib.c.
633 if (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)
634 ret = s->ctx->tlsext_servername_callback(s, &al, s->ctx->tlsext_servername_arg);
635 else if (s->initial_ctx != NULL && s->initial_ctx->tlsext_servername_callback != 0)
636 ret = s->initial_ctx->tlsext_servername_callback(s, &al, s->initial_ctx->tlsext_servername_arg);
639 case SSL_TLSEXT_ERR_ALERT_FATAL:
640 ssl3_send_alert(s,SSL3_AL_FATAL,al);
643 case SSL_TLSEXT_ERR_ALERT_WARNING:
644 ssl3_send_alert(s,SSL3_AL_WARNING,al);
647 case SSL_TLSEXT_ERR_NOACK:
648 s->servername_done=0;
654 int ssl_check_serverhello_tlsext(SSL *s)
656 int ret=SSL_TLSEXT_ERR_NOACK;
657 int al = SSL_AD_UNRECOGNIZED_NAME;
659 #ifndef OPENSSL_NO_EC
660 /* If we are client and using an elliptic curve cryptography cipher suite, then server
661 * must return a an EC point formats lists containing uncompressed.
663 int algs = s->s3->tmp.new_cipher->algorithms;
664 if ((s->tlsext_ecpointformatlist != NULL) && (s->tlsext_ecpointformatlist_length > 0) &&
665 ((algs & SSL_kECDH) || (algs & SSL_kECDHE) || (algs & SSL_aECDSA)))
667 /* we are using an ECC cipher */
670 int found_uncompressed = 0;
671 if ((s->session->tlsext_ecpointformatlist == NULL) || (s->session->tlsext_ecpointformatlist_length == 0))
673 SSLerr(SSL_F_TLS1_CHECK_SERVERHELLO_TLSEXT,SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST);
676 list = s->session->tlsext_ecpointformatlist;
677 for (i = 0; i < s->session->tlsext_ecpointformatlist_length; i++)
679 if (*(list++) == TLSEXT_ECPOINTFORMAT_uncompressed)
681 found_uncompressed = 1;
685 if (!found_uncompressed)
687 SSLerr(SSL_F_TLS1_CHECK_SERVERHELLO_TLSEXT,SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST);
691 ret = SSL_TLSEXT_ERR_OK;
692 #endif /* OPENSSL_NO_EC */
694 if (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)
695 ret = s->ctx->tlsext_servername_callback(s, &al, s->ctx->tlsext_servername_arg);
696 else if (s->initial_ctx != NULL && s->initial_ctx->tlsext_servername_callback != 0)
697 ret = s->initial_ctx->tlsext_servername_callback(s, &al, s->initial_ctx->tlsext_servername_arg);
700 case SSL_TLSEXT_ERR_ALERT_FATAL:
701 ssl3_send_alert(s,SSL3_AL_FATAL,al);
704 case SSL_TLSEXT_ERR_ALERT_WARNING:
705 ssl3_send_alert(s,SSL3_AL_WARNING,al);
708 case SSL_TLSEXT_ERR_NOACK:
709 s->servername_done=0;
716 #ifndef OPENSSL_NO_EC
717 int tls1_ec_curve_id2nid(int curve_id)
719 /* ECC curves from draft-ietf-tls-ecc-12.txt (Oct. 17, 2005) */
720 static int nid_list[26] =
723 NID_sect163k1, /* sect163k1 (1) */
724 NID_sect163r1, /* sect163r1 (2) */
725 NID_sect163r2, /* sect163r2 (3) */
726 NID_sect193r1, /* sect193r1 (4) */
727 NID_sect193r2, /* sect193r2 (5) */
728 NID_sect233k1, /* sect233k1 (6) */
729 NID_sect233r1, /* sect233r1 (7) */
730 NID_sect239k1, /* sect239k1 (8) */
731 NID_sect283k1, /* sect283k1 (9) */
732 NID_sect283r1, /* sect283r1 (10) */
733 NID_sect409k1, /* sect409k1 (11) */
734 NID_sect409r1, /* sect409r1 (12) */
735 NID_sect571k1, /* sect571k1 (13) */
736 NID_sect571r1, /* sect571r1 (14) */
737 NID_secp160k1, /* secp160k1 (15) */
738 NID_secp160r1, /* secp160r1 (16) */
739 NID_secp160r2, /* secp160r2 (17) */
740 NID_secp192k1, /* secp192k1 (18) */
741 NID_X9_62_prime192v1, /* secp192r1 (19) */
742 NID_secp224k1, /* secp224k1 (20) */
743 NID_secp224r1, /* secp224r1 (21) */
744 NID_secp256k1, /* secp256k1 (22) */
745 NID_X9_62_prime256v1, /* secp256r1 (23) */
746 NID_secp384r1, /* secp384r1 (24) */
747 NID_secp521r1 /* secp521r1 (25) */
750 if ((curve_id < 1) || (curve_id > 25)) return 0;
752 return nid_list[curve_id];
755 int tls1_ec_nid2curve_id(int nid)
757 /* ECC curves from draft-ietf-tls-ecc-12.txt (Oct. 17, 2005) */
759 case NID_sect163k1: /* sect163k1 (1) */
761 case NID_sect163r1: /* sect163r1 (2) */
763 case NID_sect163r2: /* sect163r2 (3) */
765 case NID_sect193r1: /* sect193r1 (4) */
767 case NID_sect193r2: /* sect193r2 (5) */
769 case NID_sect233k1: /* sect233k1 (6) */
771 case NID_sect233r1: /* sect233r1 (7) */
773 case NID_sect239k1: /* sect239k1 (8) */
775 case NID_sect283k1: /* sect283k1 (9) */
777 case NID_sect283r1: /* sect283r1 (10) */
779 case NID_sect409k1: /* sect409k1 (11) */
781 case NID_sect409r1: /* sect409r1 (12) */
783 case NID_sect571k1: /* sect571k1 (13) */
785 case NID_sect571r1: /* sect571r1 (14) */
787 case NID_secp160k1: /* secp160k1 (15) */
789 case NID_secp160r1: /* secp160r1 (16) */
791 case NID_secp160r2: /* secp160r2 (17) */
793 case NID_secp192k1: /* secp192k1 (18) */
795 case NID_X9_62_prime192v1: /* secp192r1 (19) */
797 case NID_secp224k1: /* secp224k1 (20) */
799 case NID_secp224r1: /* secp224r1 (21) */
801 case NID_secp256k1: /* secp256k1 (22) */
803 case NID_X9_62_prime256v1: /* secp256r1 (23) */
805 case NID_secp384r1: /* secp384r1 (24) */
807 case NID_secp521r1: /* secp521r1 (25) */
813 #endif /* OPENSSL_NO_EC */