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.]
60 #ifndef OPENSSL_NO_SSL2
62 #include <openssl/rand.h>
63 #include <openssl/buffer.h>
64 #include <openssl/objects.h>
65 #include <openssl/evp.h>
67 static SSL_METHOD *ssl2_get_client_method(int ver);
68 static int get_server_finished(SSL *s);
69 static int get_server_verify(SSL *s);
70 static int get_server_hello(SSL *s);
71 static int client_hello(SSL *s);
72 static int client_master_key(SSL *s);
73 static int client_finished(SSL *s);
74 static int client_certificate(SSL *s);
75 static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from,
76 unsigned char *to,int padding);
79 static SSL_METHOD *ssl2_get_client_method(int ver)
81 if (ver == SSL2_VERSION)
82 return(SSLv2_client_method());
87 SSL_METHOD *SSLv2_client_method(void)
90 static SSL_METHOD SSLv2_client_data;
94 memcpy((char *)&SSLv2_client_data,(char *)sslv2_base_method(),
96 SSLv2_client_data.ssl_connect=ssl2_connect;
97 SSLv2_client_data.get_ssl_method=ssl2_get_client_method;
100 return(&SSLv2_client_data);
103 int ssl2_connect(SSL *s)
105 unsigned long l=time(NULL);
111 RAND_add(&l,sizeof(l),0);
115 if (s->info_callback != NULL)
117 else if (s->ctx->info_callback != NULL)
118 cb=s->ctx->info_callback;
120 /* init things to blank */
121 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
132 case SSL_ST_BEFORE|SSL_ST_CONNECT:
133 case SSL_ST_OK|SSL_ST_CONNECT:
136 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
138 s->version=SSL2_VERSION;
139 s->type=SSL_ST_CONNECT;
142 if ((buf == NULL) && ((buf=BUF_MEM_new()) == NULL))
147 if (!BUF_MEM_grow(buf,
148 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
155 s->state=SSL2_ST_SEND_CLIENT_HELLO_A;
156 s->ctx->stats.sess_connect++;
157 s->handshake_func=ssl2_connect;
160 case SSL2_ST_SEND_CLIENT_HELLO_A:
161 case SSL2_ST_SEND_CLIENT_HELLO_B:
164 if (ret <= 0) goto end;
166 s->state=SSL2_ST_GET_SERVER_HELLO_A;
169 case SSL2_ST_GET_SERVER_HELLO_A:
170 case SSL2_ST_GET_SERVER_HELLO_B:
171 ret=get_server_hello(s);
172 if (ret <= 0) goto end;
174 if (!s->hit) /* new session */
176 s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_A;
181 s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
185 case SSL2_ST_SEND_CLIENT_MASTER_KEY_A:
186 case SSL2_ST_SEND_CLIENT_MASTER_KEY_B:
187 ret=client_master_key(s);
188 if (ret <= 0) goto end;
190 s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
193 case SSL2_ST_CLIENT_START_ENCRYPTION:
194 /* Ok, we now have all the stuff needed to
195 * start encrypting, so lets fire it up :-) */
196 if (!ssl2_enc_init(s,1))
202 s->state=SSL2_ST_SEND_CLIENT_FINISHED_A;
205 case SSL2_ST_SEND_CLIENT_FINISHED_A:
206 case SSL2_ST_SEND_CLIENT_FINISHED_B:
207 ret=client_finished(s);
208 if (ret <= 0) goto end;
210 s->state=SSL2_ST_GET_SERVER_VERIFY_A;
213 case SSL2_ST_GET_SERVER_VERIFY_A:
214 case SSL2_ST_GET_SERVER_VERIFY_B:
215 ret=get_server_verify(s);
216 if (ret <= 0) goto end;
218 s->state=SSL2_ST_GET_SERVER_FINISHED_A;
221 case SSL2_ST_GET_SERVER_FINISHED_A:
222 case SSL2_ST_GET_SERVER_FINISHED_B:
223 ret=get_server_finished(s);
224 if (ret <= 0) goto end;
227 case SSL2_ST_SEND_CLIENT_CERTIFICATE_A:
228 case SSL2_ST_SEND_CLIENT_CERTIFICATE_B:
229 case SSL2_ST_SEND_CLIENT_CERTIFICATE_C:
230 case SSL2_ST_SEND_CLIENT_CERTIFICATE_D:
231 case SSL2_ST_X509_GET_CLIENT_CERTIFICATE:
232 ret=client_certificate(s);
233 if (ret <= 0) goto end;
235 s->state=SSL2_ST_GET_SERVER_FINISHED_A;
239 if (s->init_buf != NULL)
241 BUF_MEM_free(s->init_buf);
245 /* ERR_clear_error();*/
247 /* If we want to cache session-ids in the client
248 * and we successfully add the session-id to the
249 * cache, and there is a callback, then pass it out.
250 * 26/11/96 - eay - only add if not a re-used session.
253 ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
254 if (s->hit) s->ctx->stats.sess_hit++;
258 s->ctx->stats.sess_connect_good++;
260 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
265 SSLerr(SSL_F_SSL2_CONNECT,SSL_R_UNKNOWN_STATE);
270 if ((cb != NULL) && (s->state != state))
274 cb(s,SSL_CB_CONNECT_LOOP,1);
281 cb(s,SSL_CB_CONNECT_EXIT,ret);
285 static int get_server_hello(SSL *s)
290 STACK_OF(SSL_CIPHER) *sk=NULL,*cl, *prio, *allow;
292 buf=(unsigned char *)s->init_buf->data;
294 if (s->state == SSL2_ST_GET_SERVER_HELLO_A)
296 i=ssl2_read(s,(char *)&(buf[s->init_num]),11-s->init_num);
297 if (i < (11-s->init_num))
298 return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i));
300 if (*(p++) != SSL2_MT_SERVER_HELLO)
302 if (p[-1] != SSL2_MT_ERROR)
304 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
305 SSLerr(SSL_F_GET_SERVER_HELLO,
306 SSL_R_READ_WRONG_PACKET_TYPE);
309 SSLerr(SSL_F_GET_SERVER_HELLO,
314 /* The Rhapsody 5.5 (a.k.a. MacOS X) compiler bug
315 * workaround. <appro@fy.chalmers.se> */
316 s->hit=(i=*(p++))?1:0;
320 s->s2->tmp.cert_type= *(p++);
322 if (i < s->version) s->version=i;
323 n2s(p,i); s->s2->tmp.cert_length=i;
324 n2s(p,i); s->s2->tmp.csl=i;
325 n2s(p,i); s->s2->tmp.conn_id_length=i;
326 s->state=SSL2_ST_GET_SERVER_HELLO_B;
330 /* SSL2_ST_GET_SERVER_HELLO_B */
331 j=s->s2->tmp.cert_length+s->s2->tmp.csl+s->s2->tmp.conn_id_length
333 i=ssl2_read(s,(char *)&(buf[s->init_num]),j);
334 if (i != j) return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i));
336 /* things are looking good */
341 if (s->s2->tmp.cert_length != 0)
343 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_LENGTH_NOT_ZERO);
346 if (s->s2->tmp.cert_type != 0)
349 SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG))
351 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_TYPE_NOT_ZERO);
355 if (s->s2->tmp.csl != 0)
357 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CIPHER_LIST_NOT_ZERO);
365 memset(s->session->session_id,0,
366 SSL_MAX_SSL_SESSION_ID_LENGTH_IN_BYTES);
367 s->session->session_id_length=0;
371 /* we need to do this in case we were trying to reuse a
372 * client session but others are already reusing it.
373 * If this was a new 'blank' session ID, the session-id
374 * length will still be 0 */
375 if (s->session->session_id_length > 0)
377 if (!ssl_get_new_session(s,0))
379 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
384 if (ssl2_set_certificate(s,s->s2->tmp.cert_type,
385 s->s2->tmp.cert_length,p) <= 0)
387 ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE);
390 p+=s->s2->tmp.cert_length;
392 if (s->s2->tmp.csl == 0)
394 ssl2_return_error(s,SSL2_PE_NO_CIPHER);
395 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_LIST);
399 /* We have just received a list of ciphers back from the
400 * server. We need to get the ones that match, then select
401 * the one we want the most :-). */
403 /* load the ciphers */
404 sk=ssl_bytes_to_cipher_list(s,p,s->s2->tmp.csl,
405 &s->session->ciphers);
409 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
410 SSLerr(SSL_F_GET_SERVER_HELLO,ERR_R_MALLOC_FAILURE);
414 sk_SSL_CIPHER_set_cmp_func(sk,ssl_cipher_ptr_id_cmp);
416 /* get the array of ciphers we will accept */
417 cl=SSL_get_ciphers(s);
418 sk_SSL_CIPHER_set_cmp_func(cl,ssl_cipher_ptr_id_cmp);
421 * If server preference flag set, choose the first
422 * (highest priority) cipher the server sends, otherwise
423 * client preference has priority.
425 if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE)
435 /* In theory we could have ciphers sent back that we
436 * don't want to use but that does not matter since we
437 * will check against the list we originally sent and
438 * for performance reasons we should not bother to match
439 * the two lists up just to check. */
440 for (i=0; i<sk_SSL_CIPHER_num(prio); i++)
442 if (sk_SSL_CIPHER_find(allow,
443 sk_SSL_CIPHER_value(prio,i)) >= 0)
447 if (i >= sk_SSL_CIPHER_num(prio))
449 ssl2_return_error(s,SSL2_PE_NO_CIPHER);
450 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_MATCH);
453 s->session->cipher=sk_SSL_CIPHER_value(prio,i);
456 if (s->session->peer != NULL) /* can't happen*/
458 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
459 SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
463 s->session->peer = s->session->sess_cert->peer_key->x509;
464 /* peer_key->x509 has been set by ssl2_set_certificate. */
465 CRYPTO_add(&s->session->peer->references, 1, CRYPTO_LOCK_X509);
468 if (s->session->peer != s->session->sess_cert->peer_key->x509)
471 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
472 SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
476 s->s2->conn_id_length=s->s2->tmp.conn_id_length;
477 memcpy(s->s2->conn_id,p,s->s2->tmp.conn_id_length);
481 static int client_hello(SSL *s)
485 /* CIPHER **cipher;*/
488 buf=(unsigned char *)s->init_buf->data;
489 if (s->state == SSL2_ST_SEND_CLIENT_HELLO_A)
491 if ((s->session == NULL) ||
492 (s->session->ssl_version != s->version))
494 if (!ssl_get_new_session(s,0))
496 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
500 /* else use the pre-loaded session */
503 d=p+9; /* data section */
504 *(p++)=SSL2_MT_CLIENT_HELLO; /* type */
505 s2n(SSL2_VERSION,p); /* version */
508 n=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),d);
513 SSLerr(SSL_F_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
517 s2n(n,p); /* cipher spec num bytes */
519 if ((s->session->session_id_length > 0) &&
520 (s->session->session_id_length <=
521 SSL2_MAX_SSL_SESSION_ID_LENGTH))
523 i=s->session->session_id_length;
524 s2n(i,p); /* session id length */
525 memcpy(d,s->session->session_id,(unsigned int)i);
533 s->s2->challenge_length=SSL2_CHALLENGE_LENGTH;
534 s2n(SSL2_CHALLENGE_LENGTH,p); /* challenge length */
535 /*challenge id data*/
536 RAND_pseudo_bytes(s->s2->challenge,SSL2_CHALLENGE_LENGTH);
537 memcpy(d,s->s2->challenge,SSL2_CHALLENGE_LENGTH);
538 d+=SSL2_CHALLENGE_LENGTH;
540 s->state=SSL2_ST_SEND_CLIENT_HELLO_B;
544 /* SSL2_ST_SEND_CLIENT_HELLO_B */
545 return(ssl2_do_write(s));
548 static int client_master_key(SSL *s)
552 int clear,enc,karg,i;
557 buf=(unsigned char *)s->init_buf->data;
558 if (s->state == SSL2_ST_SEND_CLIENT_MASTER_KEY_A)
561 if (!ssl_cipher_get_evp(s->session,&c,&md,NULL))
563 ssl2_return_error(s,SSL2_PE_NO_CIPHER);
564 SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS);
570 *(p++)=SSL2_MT_CLIENT_MASTER_KEY;/* type */
572 i=ssl_put_cipher_by_char(s,sess->cipher,p);
575 /* make key_arg data */
576 i=EVP_CIPHER_iv_length(c);
577 sess->key_arg_length=i;
578 if (i > 0) RAND_pseudo_bytes(sess->key_arg,i);
580 /* make a master key */
581 i=EVP_CIPHER_key_length(c);
582 sess->master_key_length=i;
585 if (RAND_bytes(sess->master_key,i) <= 0)
587 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
592 if (sess->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC)
594 else if (SSL_C_IS_EXPORT(sess->cipher))
601 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
602 SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_CIPHER_TABLE_SRC_ERROR);
607 memcpy(d,sess->master_key,(unsigned int)clear);
610 enc=ssl_rsa_public_encrypt(sess->sess_cert,enc,
611 &(sess->master_key[clear]),d,
612 (s->s2->ssl2_rollback)?RSA_SSLV23_PADDING:RSA_PKCS1_PADDING);
615 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
616 SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PUBLIC_KEY_ENCRYPT_ERROR);
620 if (s->options & SSL_OP_PKCS1_CHECK_1) d[1]++;
621 if (s->options & SSL_OP_PKCS1_CHECK_2)
622 sess->master_key[clear]++;
626 karg=sess->key_arg_length;
627 s2n(karg,p); /* key arg size */
628 memcpy(d,sess->key_arg,(unsigned int)karg);
631 s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_B;
636 /* SSL2_ST_SEND_CLIENT_MASTER_KEY_B */
637 return(ssl2_do_write(s));
640 static int client_finished(SSL *s)
644 if (s->state == SSL2_ST_SEND_CLIENT_FINISHED_A)
646 p=(unsigned char *)s->init_buf->data;
647 *(p++)=SSL2_MT_CLIENT_FINISHED;
648 memcpy(p,s->s2->conn_id,(unsigned int)s->s2->conn_id_length);
650 s->state=SSL2_ST_SEND_CLIENT_FINISHED_B;
651 s->init_num=s->s2->conn_id_length+1;
654 return(ssl2_do_write(s));
657 /* read the data and then respond */
658 static int client_certificate(SSL *s)
665 unsigned char *cert_ch;
667 buf=(unsigned char *)s->init_buf->data;
670 /* We have a cert associated with the SSL, so attach it to
671 * the session if it does not have one */
673 if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_A)
675 i=ssl2_read(s,(char *)&(buf[s->init_num]),
676 SSL2_MAX_CERT_CHALLENGE_LENGTH+1-s->init_num);
677 if (i<(SSL2_MIN_CERT_CHALLENGE_LENGTH+1-s->init_num))
678 return(ssl2_part_read(s,SSL_F_CLIENT_CERTIFICATE,i));
682 if (buf[1] != SSL2_AT_MD5_WITH_RSA_ENCRYPTION)
684 ssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE);
685 SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_AUTHENTICATION_TYPE);
690 if ((s->cert == NULL) ||
691 (s->cert->key->x509 == NULL) ||
692 (s->cert->key->privatekey == NULL))
694 s->state=SSL2_ST_X509_GET_CLIENT_CERTIFICATE;
697 s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
700 if (s->state == SSL2_ST_X509_GET_CLIENT_CERTIFICATE)
705 /* If we get an error we need to
706 * ssl->rwstate=SSL_X509_LOOKUP;
708 * We should then be retried when things are ok and we
709 * can get a cert or not */
712 if (s->ctx->client_cert_cb != NULL)
714 i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
719 s->rwstate=SSL_X509_LOOKUP;
722 s->rwstate=SSL_NOTHING;
724 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
726 s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
727 if ( !SSL_use_certificate(s,x509) ||
728 !SSL_use_PrivateKey(s,pkey))
737 if (x509 != NULL) X509_free(x509);
738 if (pkey != NULL) EVP_PKEY_free(pkey);
739 SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
745 /* We have no client certificate to respond with
746 * so send the correct error message back */
747 s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_B;
749 *(p++)=SSL2_MT_ERROR;
750 s2n(SSL2_PE_NO_CERTIFICATE,p);
753 /* Write is done at the end */
757 if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_B)
759 return(ssl2_do_write(s));
762 if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_C)
766 /* ok, now we calculate the checksum
767 * do it first so we can reuse buf :-) */
769 EVP_SignInit(&ctx,s->ctx->rsa_md5);
770 EVP_SignUpdate(&ctx,s->s2->key_material,
771 (unsigned int)s->s2->key_material_length);
772 EVP_SignUpdate(&ctx,cert_ch,(unsigned int)cert_ch_len);
773 n=i2d_X509(s->session->sess_cert->peer_key->x509,&p);
774 EVP_SignUpdate(&ctx,buf,(unsigned int)n);
778 *(p++)=SSL2_MT_CLIENT_CERTIFICATE;
779 *(p++)=SSL2_CT_X509_CERTIFICATE;
780 n=i2d_X509(s->cert->key->x509,&d);
783 if (!EVP_SignFinal(&ctx,d,&n,s->cert->key->privatekey))
785 /* this is not good. If things have failed it
786 * means there so something wrong with the key.
787 * We will continue with a 0 length signature
790 memset(&ctx,0,sizeof(ctx));
794 s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_D;
798 /* if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_D) */
799 return(ssl2_do_write(s));
802 static int get_server_verify(SSL *s)
807 p=(unsigned char *)s->init_buf->data;
808 if (s->state == SSL2_ST_GET_SERVER_VERIFY_A)
810 i=ssl2_read(s,(char *)&(p[s->init_num]),1-s->init_num);
811 if (i < (1-s->init_num))
812 return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i));
814 s->state= SSL2_ST_GET_SERVER_VERIFY_B;
816 if (*p != SSL2_MT_SERVER_VERIFY)
818 if (p[0] != SSL2_MT_ERROR)
820 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
821 SSLerr(SSL_F_GET_SERVER_VERIFY,
822 SSL_R_READ_WRONG_PACKET_TYPE);
825 SSLerr(SSL_F_GET_SERVER_VERIFY,
831 p=(unsigned char *)s->init_buf->data;
832 i=ssl2_read(s,(char *)&(p[s->init_num]),
833 (unsigned int)s->s2->challenge_length-s->init_num);
834 if (i < ((int)s->s2->challenge_length-s->init_num))
835 return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i));
836 if (memcmp(p,s->s2->challenge,(unsigned int)s->s2->challenge_length) != 0)
838 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
839 SSLerr(SSL_F_GET_SERVER_VERIFY,SSL_R_CHALLENGE_IS_DIFFERENT);
845 static int get_server_finished(SSL *s)
851 buf=(unsigned char *)s->init_buf->data;
853 if (s->state == SSL2_ST_GET_SERVER_FINISHED_A)
855 i=ssl2_read(s,(char *)&(buf[s->init_num]),1-s->init_num);
856 if (i < (1-s->init_num))
857 return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i));
859 if (*p == SSL2_MT_REQUEST_CERTIFICATE)
861 s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_A;
864 else if (*p != SSL2_MT_SERVER_FINISHED)
866 if (p[0] != SSL2_MT_ERROR)
868 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
869 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_READ_WRONG_PACKET_TYPE);
872 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_PEER_ERROR);
879 i=ssl2_read(s,(char *)&(buf[s->init_num]),
880 SSL2_SSL_SESSION_ID_LENGTH-s->init_num);
881 if (i < (SSL2_SSL_SESSION_ID_LENGTH-s->init_num))
882 return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i));
884 if (!s->hit) /* new session */
887 /* Make sure we were not trying to re-use an old SSL_SESSION
888 * or bad things can happen */
890 s->session->session_id_length=SSL2_SSL_SESSION_ID_LENGTH;
891 memcpy(s->session->session_id,p,SSL2_SSL_SESSION_ID_LENGTH);
895 if (!(s->options & SSL_OP_MICROSOFT_SESS_ID_BUG))
897 if (memcmp(buf,s->session->session_id,
898 (unsigned int)s->session->session_id_length) != 0)
900 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
901 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_SSL_SESSION_ID_IS_DIFFERENT);
909 /* loads in the certificate from the server */
910 int ssl2_set_certificate(SSL *s, int type, int len, unsigned char *data)
912 STACK_OF(X509) *sk=NULL;
919 x509=d2i_X509(NULL,&data,(long)len);
922 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_X509_LIB);
926 if ((sk=sk_X509_new_null()) == NULL || !sk_X509_push(sk,x509))
928 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_MALLOC_FAILURE);
932 i=ssl_verify_cert_chain(s,sk);
934 if ((s->verify_mode != SSL_VERIFY_NONE) && (!i))
936 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
939 ERR_clear_error(); /* but we keep s->verify_result */
940 s->session->verify_result = s->verify_result;
942 /* server's cert for this session */
943 sc=ssl_sess_cert_new();
949 if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
950 s->session->sess_cert=sc;
952 sc->peer_pkeys[SSL_PKEY_RSA_ENC].x509=x509;
953 sc->peer_key= &(sc->peer_pkeys[SSL_PKEY_RSA_ENC]);
955 pkey=X509_get_pubkey(x509);
959 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY);
962 if (pkey->type != EVP_PKEY_RSA)
964 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_PUBLIC_KEY_NOT_RSA);
968 if (!ssl_set_peer_cert_type(sc,SSL2_CT_X509_CERTIFICATE))
978 static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from,
979 unsigned char *to, int padding)
984 if ((sc == NULL) || (sc->peer_key->x509 == NULL) ||
985 ((pkey=X509_get_pubkey(sc->peer_key->x509)) == NULL))
987 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_NO_PUBLICKEY);
990 if (pkey->type != EVP_PKEY_RSA)
992 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_PUBLIC_KEY_IS_NOT_RSA);
996 /* we have the public key */
997 i=RSA_public_encrypt(len,from,to,pkey->pkey.rsa,padding);
999 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,ERR_R_RSA_LIB);
1001 EVP_PKEY_free(pkey);
1004 #else /* !OPENSSL_NO_SSL2 */
1007 static void *dummy=&dummy;