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.]
67 static int get_server_finished(SSL
*s
);
68 static int get_server_verify(SSL
*s
);
69 static int get_server_hello(SSL
*s
);
70 static int client_hello(SSL
*s
);
71 static int client_master_key(SSL
*s
);
72 static int client_finished(SSL
*s
);
73 static int client_certificate(SSL
*s
);
74 static int ssl_rsa_public_encrypt(CERT
*c
, int len
, unsigned char *from
,
75 unsigned char *to
,int padding
);
77 static int get_server_finished();
78 static int get_server_verify();
79 static int get_server_hello();
80 static int client_hello();
81 static int client_master_key();
82 static int client_finished();
83 static int client_certificate();
84 static int ssl_rsa_public_encrypt();
89 static SSL_METHOD
*ssl2_get_client_method(ver
)
92 if (ver
== SSL2_VERSION
)
93 return(SSLv2_client_method());
98 SSL_METHOD
*SSLv2_client_method()
101 static SSL_METHOD SSLv2_client_data
;
106 memcpy((char *)&SSLv2_client_data
,(char *)sslv2_base_method(),
108 SSLv2_client_data
.ssl_connect
=ssl2_connect
;
109 SSLv2_client_data
.get_ssl_method
=ssl2_get_client_method
;
111 return(&SSLv2_client_data
);
117 unsigned long l
=time(NULL
);
123 RAND_seed((unsigned char *)&l
,sizeof(l
));
127 if (s
->info_callback
!= NULL
)
129 else if (s
->ctx
->info_callback
!= NULL
)
130 cb
=s
->ctx
->info_callback
;
132 /* init things to blank */
133 if (!SSL_in_init(s
) || SSL_in_before(s
)) SSL_clear(s
);
144 case SSL_ST_BEFORE
|SSL_ST_CONNECT
:
145 case SSL_ST_OK
|SSL_ST_CONNECT
:
147 if (cb
!= NULL
) cb(s
,SSL_CB_HANDSHAKE_START
,1);
149 s
->version
=SSL2_VERSION
;
150 s
->type
=SSL_ST_CONNECT
;
153 if ((buf
== NULL
) && ((buf
=BUF_MEM_new()) == NULL
))
158 if (!BUF_MEM_grow(buf
,
159 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER
))
166 s
->state
=SSL2_ST_SEND_CLIENT_HELLO_A
;
167 s
->ctx
->sess_connect
++;
168 s
->handshake_func
=ssl2_connect
;
171 case SSL2_ST_SEND_CLIENT_HELLO_A
:
172 case SSL2_ST_SEND_CLIENT_HELLO_B
:
175 if (ret
<= 0) goto end
;
177 s
->state
=SSL2_ST_GET_SERVER_HELLO_A
;
180 case SSL2_ST_GET_SERVER_HELLO_A
:
181 case SSL2_ST_GET_SERVER_HELLO_B
:
182 ret
=get_server_hello(s
);
183 if (ret
<= 0) goto end
;
185 if (!s
->hit
) /* new session */
187 s
->state
=SSL2_ST_SEND_CLIENT_MASTER_KEY_A
;
192 s
->state
=SSL2_ST_CLIENT_START_ENCRYPTION
;
196 case SSL2_ST_SEND_CLIENT_MASTER_KEY_A
:
197 case SSL2_ST_SEND_CLIENT_MASTER_KEY_B
:
198 ret
=client_master_key(s
);
199 if (ret
<= 0) goto end
;
201 s
->state
=SSL2_ST_CLIENT_START_ENCRYPTION
;
204 case SSL2_ST_CLIENT_START_ENCRYPTION
:
205 /* Ok, we now have all the stuff needed to
206 * start encrypting, so lets fire it up :-) */
207 if (!ssl2_enc_init(s
,1))
213 s
->state
=SSL2_ST_SEND_CLIENT_FINISHED_A
;
216 case SSL2_ST_SEND_CLIENT_FINISHED_A
:
217 case SSL2_ST_SEND_CLIENT_FINISHED_B
:
218 ret
=client_finished(s
);
219 if (ret
<= 0) goto end
;
221 s
->state
=SSL2_ST_GET_SERVER_VERIFY_A
;
224 case SSL2_ST_GET_SERVER_VERIFY_A
:
225 case SSL2_ST_GET_SERVER_VERIFY_B
:
226 ret
=get_server_verify(s
);
227 if (ret
<= 0) goto end
;
229 s
->state
=SSL2_ST_GET_SERVER_FINISHED_A
;
232 case SSL2_ST_GET_SERVER_FINISHED_A
:
233 case SSL2_ST_GET_SERVER_FINISHED_B
:
234 ret
=get_server_finished(s
);
235 if (ret
<= 0) goto end
;
238 case SSL2_ST_SEND_CLIENT_CERTIFICATE_A
:
239 case SSL2_ST_SEND_CLIENT_CERTIFICATE_B
:
240 case SSL2_ST_SEND_CLIENT_CERTIFICATE_C
:
241 case SSL2_ST_SEND_CLIENT_CERTIFICATE_D
:
242 case SSL2_ST_X509_GET_CLIENT_CERTIFICATE
:
243 ret
=client_certificate(s
);
244 if (ret
<= 0) goto end
;
246 s
->state
=SSL2_ST_GET_SERVER_FINISHED_A
;
250 BUF_MEM_free(s
->init_buf
);
253 /* ERR_clear_error();*/
255 /* If we want to cache session-ids in the client
256 * and we sucessfully add the session-id to the
257 * cache, and there is a callback, then pass it out.
258 * 26/11/96 - eay - only add if not a re-used session.
261 ssl_update_cache(s
,SSL_SESS_CACHE_CLIENT
);
262 if (s
->hit
) s
->ctx
->sess_hit
++;
266 s
->ctx
->sess_connect_good
++;
268 if (cb
!= NULL
) cb(s
,SSL_CB_HANDSHAKE_DONE
,1);
273 SSLerr(SSL_F_SSL2_CONNECT
,SSL_R_UNKNOWN_STATE
);
278 if ((cb
!= NULL
) && (s
->state
!= state
))
282 cb(s
,SSL_CB_CONNECT_LOOP
,1);
289 cb(s
,SSL_CB_CONNECT_EXIT
,ret
);
293 static int get_server_hello(s
)
301 buf
=(unsigned char *)s
->init_buf
->data
;
303 if (s
->state
== SSL2_ST_GET_SERVER_HELLO_A
)
305 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),11-s
->init_num
);
306 if (i
< (11-s
->init_num
))
307 return(ssl2_part_read(s
,SSL_F_GET_SERVER_HELLO
,i
));
309 if (*(p
++) != SSL2_MT_SERVER_HELLO
)
311 if (p
[-1] != SSL2_MT_ERROR
)
313 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
314 SSLerr(SSL_F_GET_SERVER_HELLO
,
315 SSL_R_READ_WRONG_PACKET_TYPE
);
318 SSLerr(SSL_F_GET_SERVER_HELLO
,
323 s
->s2
->tmp
.cert_type
= *(p
++);
325 if (i
< s
->version
) s
->version
=i
;
326 n2s(p
,i
); s
->s2
->tmp
.cert_length
=i
;
327 n2s(p
,i
); s
->s2
->tmp
.csl
=i
;
328 n2s(p
,i
); s
->s2
->tmp
.conn_id_length
=i
;
329 s
->state
=SSL2_ST_GET_SERVER_HELLO_B
;
333 /* SSL2_ST_GET_SERVER_HELLO_B */
334 j
=s
->s2
->tmp
.cert_length
+s
->s2
->tmp
.csl
+s
->s2
->tmp
.conn_id_length
336 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),j
);
337 if (i
!= j
) return(ssl2_part_read(s
,SSL_F_GET_SERVER_HELLO
,i
));
339 /* things are looking good */
344 if (s
->s2
->tmp
.cert_length
!= 0)
346 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_REUSE_CERT_LENGTH_NOT_ZERO
);
349 if (s
->s2
->tmp
.cert_type
!= 0)
352 SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG
))
354 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_REUSE_CERT_TYPE_NOT_ZERO
);
358 if (s
->s2
->tmp
.csl
!= 0)
360 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_REUSE_CIPHER_LIST_NOT_ZERO
);
368 memset(s
->session
->session_id
,0,
369 SSL_MAX_SSL_SESSION_ID_LENGTH_IN_BYTES
);
370 s
->session
->session_id_length
=0;
374 /* we need to do this incase we were trying to reuse a
375 * client session but others are already reusing it.
376 * If this was a new 'blank' session ID, the session-id
377 * length will still be 0 */
378 if (s
->session
->session_id_length
> 0)
380 if (!ssl_get_new_session(s
,0))
382 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
387 if (ssl2_set_certificate(s
,s
->s2
->tmp
.cert_type
,
388 s
->s2
->tmp
.cert_length
,p
) <= 0)
390 ssl2_return_error(s
,SSL2_PE_BAD_CERTIFICATE
);
393 p
+=s
->s2
->tmp
.cert_length
;
395 if (s
->s2
->tmp
.csl
== 0)
397 ssl2_return_error(s
,SSL2_PE_NO_CIPHER
);
398 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_NO_CIPHER_LIST
);
402 /* We have just received a list of ciphers back from the
403 * server. We need to get the ones that match, then select
404 * the one we want the most :-). */
406 /* load the ciphers */
407 sk
=ssl_bytes_to_cipher_list(s
,p
,s
->s2
->tmp
.csl
,
408 &s
->session
->ciphers
);
412 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
413 SSLerr(SSL_F_GET_SERVER_HELLO
,ERR_R_MALLOC_FAILURE
);
417 sk_set_cmp_func(sk
,ssl_cipher_ptr_id_cmp
);
419 /* get the array of ciphers we will accept */
420 cl
=ssl_get_ciphers_by_id(s
);
422 /* In theory we could have ciphers sent back that we
423 * don't want to use but that does not matter since we
424 * will check against the list we origionally sent and
425 * for performance reasons we should not bother to match
426 * the two lists up just to check. */
427 for (i
=0; i
<sk_num(cl
); i
++)
429 if (sk_find(sk
,sk_value(cl
,i
)) >= 0)
435 ssl2_return_error(s
,SSL2_PE_NO_CIPHER
);
436 SSLerr(SSL_F_GET_SERVER_HELLO
,SSL_R_NO_CIPHER_MATCH
);
439 s
->session
->cipher
=(SSL_CIPHER
*)sk_value(cl
,i
);
442 if ((s
->session
!= NULL
) && (s
->session
->peer
!= NULL
))
443 X509_free(s
->session
->peer
);
445 /* hmmm, can we have the problem of the other session with this
446 * cert, Free's it before we increment the reference count. */
447 CRYPTO_w_lock(CRYPTO_LOCK_X509
);
448 s
->session
->peer
=s
->session
->cert
->key
->x509
;
449 CRYPTO_add(&s
->session
->peer
->references
,1,CRYPTO_LOCK_X509
);
450 CRYPTO_w_unlock(CRYPTO_LOCK_X509
);
452 s
->s2
->conn_id_length
=s
->s2
->tmp
.conn_id_length
;
453 memcpy(s
->s2
->conn_id
,p
,s
->s2
->tmp
.conn_id_length
);
457 static int client_hello(s
)
462 /* CIPHER **cipher;*/
465 buf
=(unsigned char *)s
->init_buf
->data
;
466 if (s
->state
== SSL2_ST_SEND_CLIENT_HELLO_A
)
468 if ((s
->session
== NULL
) ||
469 (s
->session
->ssl_version
!= s
->version
))
471 if (!ssl_get_new_session(s
,0))
473 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
477 /* else use the pre-loaded session */
480 d
=p
+9; /* data section */
481 *(p
++)=SSL2_MT_CLIENT_HELLO
; /* type */
482 s2n(SSL2_CLIENT_VERSION
,p
); /* version */
485 n
=ssl_cipher_list_to_bytes(s
,SSL_get_ciphers(s
),d
);
490 SSLerr(SSL_F_CLIENT_HELLO
,SSL_R_NO_CIPHERS_AVAILABLE
);
494 s2n(n
,p
); /* cipher spec num bytes */
496 if ((s
->session
->session_id_length
> 0) &&
497 (s
->session
->session_id_length
<=
498 SSL2_MAX_SSL_SESSION_ID_LENGTH
))
500 i
=s
->session
->session_id_length
;
501 s2n(i
,p
); /* session id length */
502 memcpy(d
,s
->session
->session_id
,(unsigned int)i
);
510 s
->s2
->challenge_length
=SSL2_CHALLENGE_LENGTH
;
511 s2n(SSL2_CHALLENGE_LENGTH
,p
); /* challenge length */
512 /*challenge id data*/
513 RAND_bytes(s
->s2
->challenge
,SSL2_CHALLENGE_LENGTH
);
514 memcpy(d
,s
->s2
->challenge
,SSL2_CHALLENGE_LENGTH
);
515 d
+=SSL2_CHALLENGE_LENGTH
;
517 s
->state
=SSL2_ST_SEND_CLIENT_HELLO_B
;
521 /* SSL2_ST_SEND_CLIENT_HELLO_B */
522 return(ssl2_do_write(s
));
525 static int client_master_key(s
)
530 int clear
,enc
,karg
,i
;
535 buf
=(unsigned char *)s
->init_buf
->data
;
536 if (s
->state
== SSL2_ST_SEND_CLIENT_MASTER_KEY_A
)
539 if (!ssl_cipher_get_evp(s
->session
->cipher
,&c
,&md
))
541 ssl2_return_error(s
,SSL2_PE_NO_CIPHER
);
542 SSLerr(SSL_F_CLIENT_MASTER_KEY
,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS
);
548 *(p
++)=SSL2_MT_CLIENT_MASTER_KEY
;/* type */
550 i
=ssl_put_cipher_by_char(s
,sess
->cipher
,p
);
553 /* make key_arg data */
554 i
=EVP_CIPHER_iv_length(c
);
555 sess
->key_arg_length
=i
;
556 if (i
> 0) RAND_bytes(sess
->key_arg
,i
);
558 /* make a master key */
559 i
=EVP_CIPHER_key_length(c
);
560 sess
->master_key_length
=i
;
561 if (i
> 0) RAND_bytes(sess
->master_key
,i
);
563 if (sess
->cipher
->algorithm2
& SSL2_CF_8_BYTE_ENC
)
565 else if (sess
->cipher
->algorithms
& SSL_EXP
)
572 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
573 SSLerr(SSL_F_CLIENT_MASTER_KEY
,SSL_R_CIPHER_TABLE_SRC_ERROR
);
578 memcpy(d
,sess
->master_key
,(unsigned int)clear
);
581 enc
=ssl_rsa_public_encrypt(sess
->cert
,enc
,
582 &(sess
->master_key
[clear
]),d
,
583 (s
->s2
->ssl2_rollback
)?RSA_SSLV23_PADDING
:RSA_PKCS1_PADDING
);
586 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
587 SSLerr(SSL_F_CLIENT_MASTER_KEY
,SSL_R_PUBLIC_KEY_ENCRYPT_ERROR
);
591 if (s
->options
& SSL_OP_PKCS1_CHECK_1
) d
[1]++;
592 if (s
->options
& SSL_OP_PKCS1_CHECK_2
)
593 sess
->master_key
[clear
]++;
597 karg
=sess
->key_arg_length
;
598 s2n(karg
,p
); /* key arg size */
599 memcpy(d
,sess
->key_arg
,(unsigned int)karg
);
602 s
->state
=SSL2_ST_SEND_CLIENT_MASTER_KEY_B
;
607 /* SSL2_ST_SEND_CLIENT_MASTER_KEY_B */
608 return(ssl2_do_write(s
));
611 static int client_finished(s
)
616 if (s
->state
== SSL2_ST_SEND_CLIENT_FINISHED_A
)
618 p
=(unsigned char *)s
->init_buf
->data
;
619 *(p
++)=SSL2_MT_CLIENT_FINISHED
;
620 memcpy(p
,s
->s2
->conn_id
,(unsigned int)s
->s2
->conn_id_length
);
622 s
->state
=SSL2_ST_SEND_CLIENT_FINISHED_B
;
623 s
->init_num
=s
->s2
->conn_id_length
+1;
626 return(ssl2_do_write(s
));
629 /* read the data and then respond */
630 static int client_certificate(s
)
638 unsigned char *cert_ch
;
640 buf
=(unsigned char *)s
->init_buf
->data
;
643 /* We have a cert associated with the SSL, so attach it to
644 * the session if it does not have one */
646 if (s
->state
== SSL2_ST_SEND_CLIENT_CERTIFICATE_A
)
648 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),
649 SSL2_MAX_CERT_CHALLENGE_LENGTH
+1-s
->init_num
);
650 if (i
<(SSL2_MIN_CERT_CHALLENGE_LENGTH
+1-s
->init_num
))
651 return(ssl2_part_read(s
,SSL_F_CLIENT_CERTIFICATE
,i
));
655 if (buf
[1] != SSL2_AT_MD5_WITH_RSA_ENCRYPTION
)
657 ssl2_return_error(s
,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE
);
658 SSLerr(SSL_F_CLIENT_CERTIFICATE
,SSL_R_BAD_AUTHENTICATION_TYPE
);
663 if ((s
->cert
== NULL
) ||
664 (s
->cert
->key
->x509
== NULL
) ||
665 (s
->cert
->key
->privatekey
== NULL
))
667 s
->state
=SSL2_ST_X509_GET_CLIENT_CERTIFICATE
;
670 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_C
;
673 if (s
->state
== SSL2_ST_X509_GET_CLIENT_CERTIFICATE
)
678 /* If we get an error we need to
679 * ssl->rwstate=SSL_X509_LOOKUP;
681 * We should then be retried when things are ok and we
682 * can get a cert or not */
685 if (s
->ctx
->client_cert_cb
!= NULL
)
687 i
=s
->ctx
->client_cert_cb(s
,&(x509
),&(pkey
));
692 s
->rwstate
=SSL_X509_LOOKUP
;
695 s
->rwstate
=SSL_NOTHING
;
697 if ((i
== 1) && (pkey
!= NULL
) && (x509
!= NULL
))
699 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_C
;
700 if ( !SSL_use_certificate(s
,x509
) ||
701 !SSL_use_PrivateKey(s
,pkey
))
710 if (x509
!= NULL
) X509_free(x509
);
711 if (pkey
!= NULL
) EVP_PKEY_free(pkey
);
712 SSLerr(SSL_F_CLIENT_CERTIFICATE
,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK
);
718 /* We have no client certificate to respond with
719 * so send the correct error message back */
720 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_B
;
722 *(p
++)=SSL2_MT_ERROR
;
723 s2n(SSL2_PE_NO_CERTIFICATE
,p
);
726 /* Write is done at the end */
730 if (s
->state
== SSL2_ST_SEND_CLIENT_CERTIFICATE_B
)
732 return(ssl2_do_write(s
));
735 if (s
->state
== SSL2_ST_SEND_CLIENT_CERTIFICATE_C
)
739 /* ok, now we calculate the checksum
740 * do it first so we can reuse buf :-) */
742 EVP_SignInit(&ctx
,s
->ctx
->rsa_md5
);
743 EVP_SignUpdate(&ctx
,s
->s2
->key_material
,
744 (unsigned int)s
->s2
->key_material_length
);
745 EVP_SignUpdate(&ctx
,cert_ch
,(unsigned int)cert_ch_len
);
746 n
=i2d_X509(s
->session
->cert
->key
->x509
,&p
);
747 EVP_SignUpdate(&ctx
,buf
,(unsigned int)n
);
751 *(p
++)=SSL2_MT_CLIENT_CERTIFICATE
;
752 *(p
++)=SSL2_CT_X509_CERTIFICATE
;
753 n
=i2d_X509(s
->cert
->key
->x509
,&d
);
756 if (!EVP_SignFinal(&ctx
,d
,&n
,s
->cert
->key
->privatekey
))
758 /* this is not good. If things have failed it
759 * means there so something wrong with the key.
760 * We will contiune with a 0 length signature
763 memset(&ctx
,0,sizeof(ctx
));
767 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_D
;
771 /* if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_D) */
772 return(ssl2_do_write(s
));
775 static int get_server_verify(s
)
781 p
=(unsigned char *)s
->init_buf
->data
;
782 if (s
->state
== SSL2_ST_GET_SERVER_VERIFY_A
)
784 i
=ssl2_read(s
,(char *)&(p
[s
->init_num
]),1-s
->init_num
);
785 if (i
< (1-s
->init_num
))
786 return(ssl2_part_read(s
,SSL_F_GET_SERVER_VERIFY
,i
));
788 s
->state
= SSL2_ST_GET_SERVER_VERIFY_B
;
790 if (*p
!= SSL2_MT_SERVER_VERIFY
)
792 if (p
[0] != SSL2_MT_ERROR
)
794 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
795 SSLerr(SSL_F_GET_SERVER_VERIFY
,
796 SSL_R_READ_WRONG_PACKET_TYPE
);
799 SSLerr(SSL_F_GET_SERVER_VERIFY
,
805 p
=(unsigned char *)s
->init_buf
->data
;
806 i
=ssl2_read(s
,(char *)&(p
[s
->init_num
]),
807 (unsigned int)s
->s2
->challenge_length
-s
->init_num
);
808 if (i
< ((int)s
->s2
->challenge_length
-s
->init_num
))
809 return(ssl2_part_read(s
,SSL_F_GET_SERVER_VERIFY
,i
));
810 if (memcmp(p
,s
->s2
->challenge
,(unsigned int)s
->s2
->challenge_length
) != 0)
812 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
813 SSLerr(SSL_F_GET_SERVER_VERIFY
,SSL_R_CHALLENGE_IS_DIFFERENT
);
819 static int get_server_finished(s
)
826 buf
=(unsigned char *)s
->init_buf
->data
;
828 if (s
->state
== SSL2_ST_GET_SERVER_FINISHED_A
)
830 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),1-s
->init_num
);
831 if (i
< (1-s
->init_num
))
832 return(ssl2_part_read(s
,SSL_F_GET_SERVER_FINISHED
,i
));
834 if (*p
== SSL2_MT_REQUEST_CERTIFICATE
)
836 s
->state
=SSL2_ST_SEND_CLIENT_CERTIFICATE_A
;
839 else if (*p
!= SSL2_MT_SERVER_FINISHED
)
841 if (p
[0] != SSL2_MT_ERROR
)
843 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
844 SSLerr(SSL_F_GET_SERVER_FINISHED
,SSL_R_READ_WRONG_PACKET_TYPE
);
847 SSLerr(SSL_F_GET_SERVER_FINISHED
,SSL_R_PEER_ERROR
);
854 i
=ssl2_read(s
,(char *)&(buf
[s
->init_num
]),
855 SSL2_SSL_SESSION_ID_LENGTH
-s
->init_num
);
856 if (i
< (SSL2_SSL_SESSION_ID_LENGTH
-s
->init_num
))
857 return(ssl2_part_read(s
,SSL_F_GET_SERVER_FINISHED
,i
));
859 if (!s
->hit
) /* new session */
862 /* Make sure we were not trying to re-use an old SSL_SESSION
863 * or bad things can happen */
865 s
->session
->session_id_length
=SSL2_SSL_SESSION_ID_LENGTH
;
866 memcpy(s
->session
->session_id
,p
,SSL2_SSL_SESSION_ID_LENGTH
);
870 if (!(s
->options
& SSL_OP_MICROSOFT_SESS_ID_BUG
))
872 if (memcmp(buf
,s
->session
->session_id
,
873 (unsigned int)s
->session
->session_id_length
) != 0)
875 ssl2_return_error(s
,SSL2_PE_UNDEFINED_ERROR
);
876 SSLerr(SSL_F_GET_SERVER_FINISHED
,SSL_R_SSL_SESSION_ID_IS_DIFFERENT
);
884 /* loads in the certificate from the server */
885 int ssl2_set_certificate(s
, type
, len
, data
)
898 x509
=d2i_X509(NULL
,&data
,(long)len
);
901 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,ERR_R_X509_LIB
);
905 if (((sk
=sk_new_null()) == NULL
) ||
906 (!sk_push(sk
,(char *)x509
)))
908 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,ERR_R_MALLOC_FAILURE
);
912 i
=ssl_verify_cert_chain(s
,sk
);
914 if ((s
->verify_mode
!= SSL_VERIFY_NONE
) && (!i
))
916 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,SSL_R_CERTIFICATE_VERIFY_FAILED
);
928 /* cert for session */
929 if (s
->session
->cert
) ssl_cert_free(s
->session
->cert
);
932 /* c->cert_type=type; */
934 c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
=x509
;
935 c
->key
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
937 pkey
=X509_get_pubkey(x509
);
941 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY
);
944 if (pkey
->type
!= EVP_PKEY_RSA
)
946 SSLerr(SSL_F_SSL2_SET_CERTIFICATE
,SSL_R_PUBLIC_KEY_NOT_RSA
);
950 if (!ssl_set_cert_type(c
,SSL2_CT_X509_CERTIFICATE
))
954 if (sk
!= NULL
) sk_free(sk
);
955 if (x509
!= NULL
) X509_free(x509
);
959 static int ssl_rsa_public_encrypt(c
, len
, from
, to
, padding
)
969 if ((c
== NULL
) || (c
->key
->x509
== NULL
) ||
970 ((pkey
=X509_get_pubkey(c
->key
->x509
)) == NULL
))
972 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT
,SSL_R_NO_PUBLICKEY
);
975 if (pkey
->type
!= EVP_PKEY_RSA
)
977 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT
,SSL_R_PUBLIC_KEY_IS_NOT_RSA
);
981 /* we have the public key */
982 i
=RSA_public_encrypt(len
,from
,to
,pkey
->pkey
.rsa
,padding
);
984 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT
,ERR_R_RSA_LIB
);