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.]
69 /* SSL3err(SSL_F_SSL3_GET_FINISHED,SSL_R_EXCESSIVE_MESSAGE_SIZE);
72 int ssl3_send_finished(s
,a
,b
,sender
,slen
)
76 unsigned char *sender
;
85 d
=(unsigned char *)s
->init_buf
->data
;
88 i
=s
->method
->ssl3_enc
->final_finish_mac(s
,
89 &(s
->s3
->finish_dgst1
),
90 &(s
->s3
->finish_dgst2
),
95 *(d
++)=SSL3_MT_FINISHED
;
103 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
104 return(ssl3_do_write(s
,SSL3_RT_HANDSHAKE
));
107 int ssl3_get_finished(s
,a
,b
)
116 /* the mac has already been generated when we received the
117 * change cipher spec message and is in s->s3->tmp.in_dgst[12]
120 n
=ssl3_get_message(s
,
124 64, /* should actually be 36+4 :-) */
127 if (!ok
) return((int)n
);
129 /* If this occurs if we has missed a message */
130 if (!s
->s3
->change_cipher_spec
)
132 al
=SSL_AD_UNEXPECTED_MESSAGE
;
133 SSLerr(SSL_F_SSL3_GET_FINISHED
,SSL_R_GOT_A_FIN_BEFORE_A_CCS
);
136 s
->s3
->change_cipher_spec
=0;
138 p
=(unsigned char *)s
->init_buf
->data
;
140 i
=s
->method
->ssl3_enc
->finish_mac_length
;
144 al
=SSL_AD_DECODE_ERROR
;
145 SSLerr(SSL_F_SSL3_GET_FINISHED
,SSL_R_BAD_DIGEST_LENGTH
);
149 if (memcmp( p
, (char *)&(s
->s3
->tmp
.finish_md
[0]),i
) != 0)
151 al
=SSL_AD_DECRYPT_ERROR
;
152 SSLerr(SSL_F_SSL3_GET_FINISHED
,SSL_R_DIGEST_CHECK_FAILED
);
158 ssl3_send_alert(s
,SSL3_AL_FATAL
,al
);
162 /* for these 2 messages, we need to
163 * ssl->enc_read_ctx re-init
164 * ssl->s3->read_sequence zero
165 * ssl->s3->read_mac_secret re-init
166 * ssl->session->read_sym_enc assign
167 * ssl->session->read_compression assign
168 * ssl->session->read_hash assign
170 int ssl3_send_change_cipher_spec(s
,a
,b
)
178 p
=(unsigned char *)s
->init_buf
->data
;
186 /* SSL3_ST_CW_CHANGE_B */
187 return(ssl3_do_write(s
,SSL3_RT_CHANGE_CIPHER_SPEC
));
190 unsigned long ssl3_output_cert_chain(s
,x
)
198 X509_STORE_CTX xs_ctx
;
201 /* TLSv1 sends a chain with nothing in it, instead of an alert */
203 if (!BUF_MEM_grow(buf
,(int)(10)))
205 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN
,ERR_R_BUF_LIB
);
210 X509_STORE_CTX_init(&xs_ctx
,s
->ctx
->cert_store
,NULL
,NULL
);
215 if (!BUF_MEM_grow(buf
,(int)(n
+l
+3)))
217 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN
,ERR_R_BUF_LIB
);
220 p
=(unsigned char *)&(buf
->data
[l
]);
224 if (X509_NAME_cmp(X509_get_subject_name(x
),
225 X509_get_issuer_name(x
)) == 0) break;
227 i
=X509_STORE_get_by_subject(&xs_ctx
,X509_LU_X509
,
228 X509_get_issuer_name(x
),&obj
);
231 /* Count is one too high since the X509_STORE_get uped the
236 X509_STORE_CTX_cleanup(&xs_ctx
);
240 p
=(unsigned char *)&(buf
->data
[4]);
243 p
=(unsigned char *)&(buf
->data
[0]);
244 *(p
++)=SSL3_MT_CERTIFICATE
;
250 long ssl3_get_message(s
,st1
,stn
,mt
,max
,ok
)
261 if (s
->s3
->tmp
.reuse_message
)
263 s
->s3
->tmp
.reuse_message
=0;
264 if ((mt
>= 0) && (s
->s3
->tmp
.message_type
!= mt
))
266 al
=SSL_AD_UNEXPECTED_MESSAGE
;
267 SSLerr(SSL_F_SSL3_GET_MESSAGE
,SSL_R_UNEXPECTED_MESSAGE
);
271 return((int)s
->s3
->tmp
.message_size
);
274 p
=(unsigned char *)s
->init_buf
->data
;
278 i
=ssl3_read_bytes(s
,SSL3_RT_HANDSHAKE
,
279 (char *)&(p
[s
->init_num
]),
281 if (i
< (4-s
->init_num
))
284 return(ssl3_part_read(s
,i
));
287 if ((mt
>= 0) && (*p
!= mt
))
289 al
=SSL_AD_UNEXPECTED_MESSAGE
;
290 SSLerr(SSL_F_SSL3_GET_MESSAGE
,SSL_R_UNEXPECTED_MESSAGE
);
293 s
->s3
->tmp
.message_type
= *(p
++);
296 if (l
> (unsigned long)max
)
298 al
=SSL_AD_ILLEGAL_PARAMETER
;
299 SSLerr(SSL_F_SSL3_GET_MESSAGE
,SSL_R_EXCESSIVE_MESSAGE_SIZE
);
302 if (l
&& !BUF_MEM_grow(s
->init_buf
,(int)l
))
304 SSLerr(SSL_F_SSL3_GET_MESSAGE
,ERR_R_BUF_LIB
);
307 s
->s3
->tmp
.message_size
=l
;
313 /* next state (stn) */
314 p
=(unsigned char *)s
->init_buf
->data
;
315 n
=s
->s3
->tmp
.message_size
;
318 i
=ssl3_read_bytes(s
,SSL3_RT_HANDSHAKE
,
319 (char *)&(p
[s
->init_num
]),(int)n
);
323 return(ssl3_part_read(s
,i
));
329 ssl3_send_alert(s
,SSL3_AL_FATAL
,al
);
335 int ssl_cert_type(x
,pkey
)
343 pk
=X509_get_pubkey(x
);
346 if (pk
== NULL
) goto err
;
349 if (i
== EVP_PKEY_RSA
)
351 ret
=SSL_PKEY_RSA_ENC
;
354 j
=X509_get_ext_count(x
);
355 /* check to see if this is a signing only certificate */
356 /* EAY EAY EAY EAY */
359 else if (i
== EVP_PKEY_DSA
)
361 ret
=SSL_PKEY_DSA_SIGN
;
363 else if (i
== EVP_PKEY_DH
)
365 /* if we just have a key, we needs to be guess */
371 j
=X509_get_signature_type(x
);
372 if (j
== EVP_PKEY_RSA
)
374 else if (j
== EVP_PKEY_DSA
)
386 int ssl_verify_alarm_type(type
)
393 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
:
394 case X509_V_ERR_UNABLE_TO_GET_CRL
:
395 al
=SSL_AD_UNKNOWN_CA
;
397 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE
:
398 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE
:
399 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY
:
400 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD
:
401 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD
:
402 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD
:
403 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD
:
404 case X509_V_ERR_CERT_NOT_YET_VALID
:
405 case X509_V_ERR_CRL_NOT_YET_VALID
:
406 al
=SSL_AD_BAD_CERTIFICATE
;
408 case X509_V_ERR_CERT_SIGNATURE_FAILURE
:
409 case X509_V_ERR_CRL_SIGNATURE_FAILURE
:
410 al
=SSL_AD_DECRYPT_ERROR
;
412 case X509_V_ERR_CERT_HAS_EXPIRED
:
413 case X509_V_ERR_CRL_HAS_EXPIRED
:
414 al
=SSL_AD_CERTIFICATE_EXPIRED
;
416 case X509_V_ERR_CERT_REVOKED
:
417 al
=SSL_AD_CERTIFICATE_REVOKED
;
419 case X509_V_ERR_OUT_OF_MEM
:
420 al
=SSL_AD_INTERNAL_ERROR
;
422 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
:
423 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
:
424 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
:
425 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE
:
426 case X509_V_ERR_CERT_CHAIN_TOO_LONG
:
427 al
=SSL_AD_UNKNOWN_CA
;
429 case X509_V_ERR_APPLICATION_VERIFICATION
:
430 al
=SSL_AD_HANDSHAKE_FAILURE
;
433 al
=SSL_AD_CERTIFICATE_UNKNOWN
;
439 int ssl3_setup_buffers(s
)
445 if (s
->s3
->rbuf
.buf
== NULL
)
447 if (s
->options
& SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER
)
448 extra
=SSL3_RT_MAX_EXTRA
;
451 if ((p
=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE
+extra
))
457 if (s
->s3
->wbuf
.buf
== NULL
)
459 if ((p
=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE
))
464 s
->packet
= &(s
->s3
->rbuf
.buf
[0]);
467 SSLerr(SSL_F_SSL3_SETUP_BUFFERS
,ERR_R_MALLOC_FAILURE
);