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(SSL *s, int a, int b, unsigned char *sender,
81 d=(unsigned char *)s->init_buf->data;
84 i=s->method->ssl3_enc->final_finish_mac(s,
85 &(s->s3->finish_dgst1),
86 &(s->s3->finish_dgst2),
92 /* MSVC 1.5 does not clear the top bytes of the word unless
98 *(d++)=SSL3_MT_FINISHED;
100 s->init_num=(int)l+4;
106 /* SSL3_ST_SEND_xxxxxx_HELLO_B */
107 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
110 int ssl3_get_finished(SSL *s, int a, int 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(SSL *s, int a, int b)
176 p=(unsigned char *)s->init_buf->data;
184 /* SSL3_ST_CW_CHANGE_B */
185 return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
188 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
194 X509_STORE_CTX xs_ctx;
197 /* TLSv1 sends a chain with nothing in it, instead of an alert */
199 if (!BUF_MEM_grow(buf,(int)(10)))
201 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
206 X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL);
211 if (!BUF_MEM_grow(buf,(int)(n+l+3)))
213 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
216 p=(unsigned char *)&(buf->data[l]);
220 if (X509_NAME_cmp(X509_get_subject_name(x),
221 X509_get_issuer_name(x)) == 0) break;
223 i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
224 X509_get_issuer_name(x),&obj);
227 /* Count is one too high since the X509_STORE_get uped the
232 X509_STORE_CTX_cleanup(&xs_ctx);
235 /* Thawte special :-) */
236 if (s->ctx->extra_certs != NULL)
237 for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
239 x=sk_X509_value(s->ctx->extra_certs,i);
241 if (!BUF_MEM_grow(buf,(int)(n+l+3)))
243 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
246 p=(unsigned char *)&(buf->data[l]);
253 p=(unsigned char *)&(buf->data[4]);
256 p=(unsigned char *)&(buf->data[0]);
257 *(p++)=SSL3_MT_CERTIFICATE;
263 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
270 if (s->s3->tmp.reuse_message)
272 s->s3->tmp.reuse_message=0;
273 if ((mt >= 0) && (s->s3->tmp.message_type != mt))
275 al=SSL_AD_UNEXPECTED_MESSAGE;
276 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
280 return((int)s->s3->tmp.message_size);
283 p=(unsigned char *)s->init_buf->data;
287 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
288 (char *)&(p[s->init_num]),
290 if (i < (4-s->init_num))
293 return(ssl3_part_read(s,i));
296 if ((mt >= 0) && (*p != mt))
298 al=SSL_AD_UNEXPECTED_MESSAGE;
299 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
302 s->s3->tmp.message_type= *(p++);
305 if (l > (unsigned long)max)
307 al=SSL_AD_ILLEGAL_PARAMETER;
308 SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
311 if (l && !BUF_MEM_grow(s->init_buf,(int)l))
313 SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
316 s->s3->tmp.message_size=l;
322 /* next state (stn) */
323 p=(unsigned char *)s->init_buf->data;
324 n=s->s3->tmp.message_size;
327 i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,
328 (char *)&(p[s->init_num]),(int)n);
332 return(ssl3_part_read(s,i));
338 ssl3_send_alert(s,SSL3_AL_FATAL,al);
344 int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
350 pk=X509_get_pubkey(x);
353 if (pk == NULL) goto err;
356 if (i == EVP_PKEY_RSA)
358 ret=SSL_PKEY_RSA_ENC;
361 j=X509_get_ext_count(x);
362 /* check to see if this is a signing only certificate */
363 /* EAY EAY EAY EAY */
366 else if (i == EVP_PKEY_DSA)
368 ret=SSL_PKEY_DSA_SIGN;
370 else if (i == EVP_PKEY_DH)
372 /* if we just have a key, we needs to be guess */
378 j=X509_get_signature_type(x);
379 if (j == EVP_PKEY_RSA)
381 else if (j== EVP_PKEY_DSA)
390 if(!pkey) EVP_PKEY_free(pk);
394 int ssl_verify_alarm_type(long type)
400 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
401 case X509_V_ERR_UNABLE_TO_GET_CRL:
402 al=SSL_AD_UNKNOWN_CA;
404 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
405 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
406 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
407 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
408 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
409 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
410 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
411 case X509_V_ERR_CERT_NOT_YET_VALID:
412 case X509_V_ERR_CRL_NOT_YET_VALID:
413 al=SSL_AD_BAD_CERTIFICATE;
415 case X509_V_ERR_CERT_SIGNATURE_FAILURE:
416 case X509_V_ERR_CRL_SIGNATURE_FAILURE:
417 al=SSL_AD_DECRYPT_ERROR;
419 case X509_V_ERR_CERT_HAS_EXPIRED:
420 case X509_V_ERR_CRL_HAS_EXPIRED:
421 al=SSL_AD_CERTIFICATE_EXPIRED;
423 case X509_V_ERR_CERT_REVOKED:
424 al=SSL_AD_CERTIFICATE_REVOKED;
426 case X509_V_ERR_OUT_OF_MEM:
427 al=SSL_AD_INTERNAL_ERROR;
429 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
430 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
431 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
432 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
433 case X509_V_ERR_CERT_CHAIN_TOO_LONG:
434 al=SSL_AD_UNKNOWN_CA;
436 case X509_V_ERR_APPLICATION_VERIFICATION:
437 al=SSL_AD_HANDSHAKE_FAILURE;
440 al=SSL_AD_CERTIFICATE_UNKNOWN;
446 int ssl3_setup_buffers(SSL *s)
451 if (s->s3->rbuf.buf == NULL)
453 if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
454 extra=SSL3_RT_MAX_EXTRA;
457 if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
463 if (s->s3->wbuf.buf == NULL)
465 if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE))
470 s->packet= &(s->s3->rbuf.buf[0]);
473 SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);