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.]
63 char *ssl3_version_str="SSLv3" OPENSSL_VERSION_PTEXT;
65 #define SSL3_NUM_CIPHERS (sizeof(ssl3_ciphers)/sizeof(SSL_CIPHER))
68 static long ssl3_default_timeout(void );
70 static long ssl3_default_timeout();
73 SSL_CIPHER ssl3_ciphers[]={
78 SSL3_TXT_RSA_NULL_MD5,
80 SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3,
87 SSL3_TXT_RSA_NULL_SHA,
89 SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
98 SSL3_TXT_ADH_RC4_40_MD5,
99 SSL3_CK_ADH_RC4_40_MD5,
100 SSL_kEDH |SSL_aNULL|SSL_RC4 |SSL_MD5 |SSL_EXP40|SSL_SSLV3,
107 SSL3_TXT_ADH_RC4_128_MD5,
108 SSL3_CK_ADH_RC4_128_MD5,
109 SSL_kEDH |SSL_aNULL|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3,
116 SSL3_TXT_ADH_DES_40_CBC_SHA,
117 SSL3_CK_ADH_DES_40_CBC_SHA,
118 SSL_kEDH |SSL_aNULL|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
125 SSL3_TXT_ADH_DES_64_CBC_SHA,
126 SSL3_CK_ADH_DES_64_CBC_SHA,
127 SSL_kEDH |SSL_aNULL|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
134 SSL3_TXT_ADH_DES_192_CBC_SHA,
135 SSL3_CK_ADH_DES_192_CBC_SHA,
136 SSL_kEDH |SSL_aNULL|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
145 SSL3_TXT_RSA_RC4_40_MD5,
146 SSL3_CK_RSA_RC4_40_MD5,
147 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_MD5 |SSL_EXP40|SSL_SSLV3,
154 SSL3_TXT_RSA_RC4_128_MD5,
155 SSL3_CK_RSA_RC4_128_MD5,
156 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
163 SSL3_TXT_RSA_RC4_128_SHA,
164 SSL3_CK_RSA_RC4_128_SHA,
165 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
172 SSL3_TXT_RSA_RC2_40_MD5,
173 SSL3_CK_RSA_RC2_40_MD5,
174 SSL_kRSA|SSL_aRSA|SSL_RC2 |SSL_MD5 |SSL_EXP40|SSL_SSLV3,
181 SSL3_TXT_RSA_IDEA_128_SHA,
182 SSL3_CK_RSA_IDEA_128_SHA,
183 SSL_kRSA|SSL_aRSA|SSL_IDEA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
190 SSL3_TXT_RSA_DES_40_CBC_SHA,
191 SSL3_CK_RSA_DES_40_CBC_SHA,
192 SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
199 SSL3_TXT_RSA_DES_64_CBC_SHA,
200 SSL3_CK_RSA_DES_64_CBC_SHA,
201 SSL_kRSA|SSL_aRSA|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
208 SSL3_TXT_RSA_DES_192_CBC3_SHA,
209 SSL3_CK_RSA_DES_192_CBC3_SHA,
210 SSL_kRSA|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
219 SSL3_TXT_DH_DSS_DES_40_CBC_SHA,
220 SSL3_CK_DH_DSS_DES_40_CBC_SHA,
221 SSL_kDHd |SSL_aDH|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
228 SSL3_TXT_DH_DSS_DES_64_CBC_SHA,
229 SSL3_CK_DH_DSS_DES_64_CBC_SHA,
230 SSL_kDHd |SSL_aDH|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
237 SSL3_TXT_DH_DSS_DES_192_CBC3_SHA,
238 SSL3_CK_DH_DSS_DES_192_CBC3_SHA,
239 SSL_kDHd |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
246 SSL3_TXT_DH_RSA_DES_40_CBC_SHA,
247 SSL3_CK_DH_RSA_DES_40_CBC_SHA,
248 SSL_kDHr |SSL_aDH|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
255 SSL3_TXT_DH_RSA_DES_64_CBC_SHA,
256 SSL3_CK_DH_RSA_DES_64_CBC_SHA,
257 SSL_kDHr |SSL_aDH|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
264 SSL3_TXT_DH_RSA_DES_192_CBC3_SHA,
265 SSL3_CK_DH_RSA_DES_192_CBC3_SHA,
266 SSL_kDHr |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
271 /* The Ephemeral DH ciphers */
275 SSL3_TXT_EDH_DSS_DES_40_CBC_SHA,
276 SSL3_CK_EDH_DSS_DES_40_CBC_SHA,
277 SSL_kEDH|SSL_aDSS|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
284 SSL3_TXT_EDH_DSS_DES_64_CBC_SHA,
285 SSL3_CK_EDH_DSS_DES_64_CBC_SHA,
286 SSL_kEDH|SSL_aDSS|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
293 SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA,
294 SSL3_CK_EDH_DSS_DES_192_CBC3_SHA,
295 SSL_kEDH|SSL_aDSS|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
302 SSL3_TXT_EDH_RSA_DES_40_CBC_SHA,
303 SSL3_CK_EDH_RSA_DES_40_CBC_SHA,
304 SSL_kEDH|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_EXP40|SSL_SSLV3,
311 SSL3_TXT_EDH_RSA_DES_64_CBC_SHA,
312 SSL3_CK_EDH_RSA_DES_64_CBC_SHA,
313 SSL_kEDH|SSL_aRSA|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
320 SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA,
321 SSL3_CK_EDH_RSA_DES_192_CBC3_SHA,
322 SSL_kEDH|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
331 SSL3_TXT_FZA_DMS_NULL_SHA,
332 SSL3_CK_FZA_DMS_NULL_SHA,
333 SSL_kFZA|SSL_aFZA |SSL_eNULL |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
341 SSL3_TXT_FZA_DMS_FZA_SHA,
342 SSL3_CK_FZA_DMS_FZA_SHA,
343 SSL_kFZA|SSL_aFZA |SSL_eFZA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
351 SSL3_TXT_FZA_DMS_RC4_SHA,
352 SSL3_CK_FZA_DMS_RC4_SHA,
353 SSL_kFZA|SSL_aFZA |SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
358 #if TLS1_ALLOW_EXPERIMENTAL_CIPHERSUITES
359 /* New TLS Export CipherSuites */
363 TLS1_TXT_RSA_EXPORT56_WITH_RC4_56_MD5,
364 TLS1_CK_RSA_EXPORT56_WITH_RC4_56_MD5,
365 SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_EXP56|SSL_TLSV1,
372 TLS1_TXT_RSA_EXPORT56_WITH_RC2_CBC_56_MD5,
373 TLS1_CK_RSA_EXPORT56_WITH_RC2_CBC_56_MD5,
374 SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_EXP56|SSL_TLSV1,
381 TLS1_TXT_RSA_EXPORT56_WITH_DES_CBC_SHA,
382 TLS1_CK_RSA_EXPORT56_WITH_DES_CBC_SHA,
383 SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA|SSL_EXP56|SSL_TLSV1,
392 static SSL3_ENC_METHOD SSLv3_enc_data={
395 ssl3_setup_key_block,
396 ssl3_generate_master_secret,
397 ssl3_change_cipher_state,
398 ssl3_final_finish_mac,
399 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
400 ssl3_cert_verify_mac,
401 SSL3_MD_CLIENT_FINISHED_CONST,4,
402 SSL3_MD_SERVER_FINISHED_CONST,4,
406 static SSL_METHOD SSLv3_data= {
411 ssl_undefined_function,
412 ssl_undefined_function,
418 ssl3_renegotiate_check,
421 ssl3_get_cipher_by_char,
422 ssl3_put_cipher_by_char,
427 ssl3_default_timeout,
431 static long ssl3_default_timeout()
433 /* 2 hours, the 24 hours mentioned in the SSLv3 spec
434 * is way too long for http, the cache would over fill */
438 SSL_METHOD *sslv3_base_method()
443 int ssl3_num_ciphers()
445 return(SSL3_NUM_CIPHERS);
448 SSL_CIPHER *ssl3_get_cipher(u)
451 if (u < SSL3_NUM_CIPHERS)
452 return(&(ssl3_ciphers[SSL3_NUM_CIPHERS-1-u]));
457 /* The problem is that it may not be the correct record type */
461 return(s->s3->rrec.length);
469 if ((s3=(SSL3_CTX *)Malloc(sizeof(SSL3_CTX))) == NULL) goto err;
470 memset(s3,0,sizeof(SSL3_CTX));
474 s->s3->tmp.ca_names=NULL;
475 s->s3->tmp.key_block=NULL;
476 s->s3->tmp.key_block_length=0;
477 s->s3->rbuf.buf=NULL;
478 s->s3->wbuf.buf=NULL;
481 s->method->ssl_clear(s);
493 ssl3_cleanup_key_block(s);
494 if (s->s3->rbuf.buf != NULL)
495 Free(s->s3->rbuf.buf);
496 if (s->s3->wbuf.buf != NULL)
497 Free(s->s3->wbuf.buf);
498 if (s->s3->rrec.comp != NULL)
499 Free(s->s3->rrec.comp);
501 if (s->s3->tmp.dh != NULL)
502 DH_free(s->s3->tmp.dh);
504 if (s->s3->tmp.ca_names != NULL)
505 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
506 memset(s->s3,0,sizeof(SSL3_CTX));
514 unsigned char *rp,*wp;
516 ssl3_cleanup_key_block(s);
517 if (s->s3->tmp.ca_names != NULL)
518 sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
520 if (s->s3->rrec.comp != NULL)
522 Free(s->s3->rrec.comp);
523 s->s3->rrec.comp=NULL;
529 memset(s->s3,0,sizeof(SSL3_CTX));
530 if (rp != NULL) s->s3->rbuf.buf=rp;
531 if (wp != NULL) s->s3->wbuf.buf=wp;
533 ssl_free_wbio_buffer(s);
536 s->s3->renegotiate=0;
537 s->s3->total_renegotiations=0;
538 s->s3->num_renegotiations=0;
539 s->s3->in_read_app_data=0;
540 s->version=SSL3_VERSION;
543 long ssl3_ctrl(s,cmd,larg,parg)
551 #if !defined(NO_DSA) || !defined(NO_RSA)
554 cmd == SSL_CTRL_SET_TMP_RSA ||
555 cmd == SSL_CTRL_SET_TMP_RSA_CB ||
558 cmd == SSL_CTRL_SET_TMP_DH ||
559 cmd == SSL_CTRL_SET_TMP_DH_CB ||
563 if (!ssl_cert_instantiate(&s->cert, s->ctx->default_cert))
565 SSLerr(SSL_F_SSL3_CTRL, ERR_R_MALLOC_FAILURE);
573 case SSL_CTRL_GET_SESSION_REUSED:
576 case SSL_CTRL_GET_CLIENT_CERT_REQUEST:
578 case SSL_CTRL_GET_NUM_RENEGOTIATIONS:
579 ret=s->s3->num_renegotiations;
581 case SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS:
582 ret=s->s3->num_renegotiations;
583 s->s3->num_renegotiations=0;
585 case SSL_CTRL_GET_TOTAL_RENEGOTIATIONS:
586 ret=s->s3->total_renegotiations;
588 case SSL_CTRL_GET_FLAGS:
589 ret=(int)(s->s3->flags);
592 case SSL_CTRL_NEED_TMP_RSA:
593 if ((s->cert != NULL) && (s->cert->rsa_tmp == NULL) &&
594 ((s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) ||
595 (EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey) > (512/8))))
598 case SSL_CTRL_SET_TMP_RSA:
600 RSA *rsa = (RSA *)parg;
602 SSLerr(SSL_F_SSL3_CTRL, ERR_R_PASSED_NULL_PARAMETER);
605 if ((rsa = RSAPrivateKey_dup(rsa)) == NULL) {
606 SSLerr(SSL_F_SSL3_CTRL, ERR_R_RSA_LIB);
609 if (s->cert->rsa_tmp != NULL)
610 RSA_free(s->cert->rsa_tmp);
611 s->cert->rsa_tmp = rsa;
615 case SSL_CTRL_SET_TMP_RSA_CB:
617 s->cert->rsa_tmp_cb = (RSA *(*)(SSL *, int, int))parg;
619 s->cert->rsa_tmp_cb = (RSA *(*)())parg;
624 case SSL_CTRL_SET_TMP_DH:
628 SSLerr(SSL_F_SSL3_CTRL, ERR_R_PASSED_NULL_PARAMETER);
631 if ((dh = DHparams_dup(dh)) == NULL) {
632 SSLerr(SSL_F_SSL3_CTRL, ERR_R_DH_LIB);
635 if (!DH_generate_key(dh)) {
637 SSLerr(SSL_F_SSL3_CTRL, ERR_R_DH_LIB);
640 if (s->cert->dh_tmp != NULL)
641 DH_free(s->cert->dh_tmp);
642 s->cert->dh_tmp = dh;
646 case SSL_CTRL_SET_TMP_DH_CB:
648 s->cert->dh_tmp_cb = (DH *(*)(SSL *, int, int))parg;
650 s->cert->dh_tmp_cb = (DH *(*)())parg;
660 long ssl3_ctx_ctrl(ctx,cmd,larg,parg)
668 cert=ctx->default_cert;
673 case SSL_CTRL_NEED_TMP_RSA:
674 if ( (cert->rsa_tmp == NULL) &&
675 ((cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) ||
676 (EVP_PKEY_size(cert->pkeys[SSL_PKEY_RSA_ENC].privatekey) > (512/8)))
682 case SSL_CTRL_SET_TMP_RSA:
693 if ((rsa=RSAPrivateKey_dup(rsa)) == NULL)
698 SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_RSA_LIB);
703 if (cert->rsa_tmp != NULL)
704 RSA_free(cert->rsa_tmp);
710 case SSL_CTRL_SET_TMP_RSA_CB:
712 cert->rsa_tmp_cb=(RSA *(*)(SSL *, int, int))parg;
714 cert->rsa_tmp_cb=(RSA *(*)())parg;
719 case SSL_CTRL_SET_TMP_DH:
725 if ( ((new=DHparams_dup(dh)) == NULL) ||
726 (!DH_generate_key(new)))
728 SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_DH_LIB);
729 if (new != NULL) DH_free(new);
733 if (cert->dh_tmp != NULL)
734 DH_free(cert->dh_tmp);
741 case SSL_CTRL_SET_TMP_DH_CB:
743 cert->dh_tmp_cb=(DH *(*)(SSL *, int, int))parg;
745 cert->dh_tmp_cb=(DH *(*)())parg;
749 /* A Thawte special :-) */
750 case SSL_CTRL_EXTRA_CHAIN_CERT:
751 if (ctx->extra_certs == NULL)
753 if ((ctx->extra_certs=sk_X509_new_null()) == NULL)
756 sk_X509_push(ctx->extra_certs,(X509 *)parg);
765 /* This function needs to check if the ciphers required are actually
767 SSL_CIPHER *ssl3_get_cipher_by_char(p)
768 const unsigned char *p;
771 static SSL_CIPHER *sorted[SSL3_NUM_CIPHERS];
772 SSL_CIPHER c,*cp= &c,**cpp;
780 for (i=0; i<SSL3_NUM_CIPHERS; i++)
781 sorted[i]= &(ssl3_ciphers[i]);
783 qsort( (char *)sorted,
784 SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
785 FP_ICC ssl_cipher_ptr_id_cmp);
788 id=0x03000000L|((unsigned long)p[0]<<8L)|(unsigned long)p[1];
790 cpp=(SSL_CIPHER **)OBJ_bsearch((char *)&cp,
792 SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
793 (int (*)())ssl_cipher_ptr_id_cmp);
794 if ((cpp == NULL) || !(*cpp)->valid)
800 int ssl3_put_cipher_by_char(c,p)
809 if ((l & 0xff000000) != 0x03000000) return(0);
810 p[0]=((unsigned char)(l>> 8L))&0xFF;
811 p[1]=((unsigned char)(l ))&0xFF;
816 int ssl3_part_read(s,i)
820 s->rwstate=SSL_READING;
833 SSL_CIPHER *ssl3_choose_cipher(s,have,pref)
835 STACK_OF(SSL_CIPHER) *have;
836 STACK_OF(SSL_CIPHER) *pref;
838 SSL_CIPHER *c,*ret=NULL;
841 unsigned long alg,mask,emask;
843 /* Lets see which ciphers we can supported */
847 cert=s->ctx->default_cert;
849 sk_SSL_CIPHER_set_cmp_func(pref,ssl_cipher_ptr_id_cmp);
853 for(i=0 ; i < sk_num(pref) ; ++i)
855 c=(SSL_CIPHER *)sk_value(pref,i);
856 printf("%p:%s\n",c,c->name);
860 for (i=0; i<sk_SSL_CIPHER_num(have); i++)
862 c=sk_SSL_CIPHER_value(have,i);
864 ssl_set_cert_masks(cert,s->ctx->default_cert,c);
866 emask=cert->export_mask;
868 alg=c->algorithms&(SSL_MKEY_MASK|SSL_AUTH_MASK);
869 if (SSL_IS_EXPORT(c->algorithms))
871 ok=((alg & emask) == alg)?1:0;
873 printf("%d:[%08lX:%08lX]%p:%s (export)\n",ok,alg,emask,
879 ok=((alg & mask) == alg)?1:0;
881 printf("%d:[%08lX:%08lX]%p:%s\n",ok,alg,mask,c,
888 j=sk_SSL_CIPHER_find(pref,c);
891 ret=sk_SSL_CIPHER_value(pref,j);
898 int ssl3_get_req_cert_type(s,p)
905 alg=s->s3->tmp.new_cipher->algorithms;
908 if (alg & (SSL_kDHr|SSL_kEDH))
911 p[ret++]=SSL3_CT_RSA_FIXED_DH;
914 p[ret++]=SSL3_CT_DSS_FIXED_DH;
917 if ((s->version == SSL3_VERSION) &&
918 (alg & (SSL_kEDH|SSL_kDHd|SSL_kDHr)))
921 p[ret++]=SSL3_CT_RSA_EPHEMERAL_DH;
924 p[ret++]=SSL3_CT_DSS_EPHEMERAL_DH;
929 p[ret++]=SSL3_CT_RSA_SIGN;
932 p[ret++]=SSL3_CT_DSS_SIGN;
941 /* Don't do anything much if we have not done the handshake or
942 * we don't want to send messages :-) */
943 if ((s->quiet_shutdown) || (s->state == SSL_ST_BEFORE))
945 s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
949 if (!(s->shutdown & SSL_SENT_SHUTDOWN))
951 s->shutdown|=SSL_SENT_SHUTDOWN;
953 ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_CLOSE_NOTIFY);
955 /* our shutdown alert has been sent now, and if it still needs
956 * to be written, s->s3->alert_dispatch will be true */
958 else if (s->s3->alert_dispatch)
960 /* resend it if not sent */
962 ssl3_dispatch_alert(s);
965 else if (!(s->shutdown & SSL_RECEIVED_SHUTDOWN))
967 /* If we are waiting for a close from our peer, we are closed */
968 ssl3_read_bytes(s,0,NULL,0);
971 if ((s->shutdown == (SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN)) &&
972 !s->s3->alert_dispatch)
978 int ssl3_write(s,buf,len)
986 if (s->shutdown & SSL_SEND_SHUTDOWN)
988 s->rwstate=SSL_NOTHING;
993 if (s->s3->renegotiate) ssl3_renegotiate_check(s);
995 /* This is an experimental flag that sends the
996 * last handshake message in the same packet as the first
997 * use data - used to see if it helps the TCP protocol during
998 * session-id reuse */
999 /* The second test is because the buffer may have been removed */
1000 if ((s->s3->flags & SSL3_FLAGS_POP_BUFFER) && (s->wbio == s->bbio))
1002 /* First time through, we write into the buffer */
1003 if (s->s3->delay_buf_pop_ret == 0)
1005 ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
1007 if (ret <= 0) return(ret);
1009 s->s3->delay_buf_pop_ret=ret;
1012 s->rwstate=SSL_WRITING;
1013 n=BIO_flush(s->wbio);
1014 if (n <= 0) return(n);
1015 s->rwstate=SSL_NOTHING;
1017 /* We have flushed the buffer, so remove it */
1018 ssl_free_wbio_buffer(s);
1019 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
1021 ret=s->s3->delay_buf_pop_ret;
1022 s->s3->delay_buf_pop_ret=0;
1026 ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
1028 if (ret <= 0) return(ret);
1034 int ssl3_read(s,buf,len)
1042 if (s->s3->renegotiate) ssl3_renegotiate_check(s);
1043 s->s3->in_read_app_data=1;
1044 ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
1045 if ((ret == -1) && (s->s3->in_read_app_data == 0))
1047 ERR_get_error(); /* clear the error */
1048 s->s3->in_read_app_data=0;
1050 ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
1054 s->s3->in_read_app_data=0;
1059 int ssl3_peek(s,buf,len)
1068 if ((rr->length == 0) || (rr->type != SSL3_RT_APPLICATION_DATA))
1070 n=ssl3_read(s,buf,1);
1071 if (n <= 0) return(n);
1076 if ((unsigned int)len > rr->length)
1080 memcpy(buf,&(rr->data[rr->off]),(unsigned int)n);
1084 int ssl3_renegotiate(s)
1087 if (s->handshake_func == NULL)
1090 if (s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)
1093 s->s3->renegotiate=1;
1097 int ssl3_renegotiate_check(s)
1102 if (s->s3->renegotiate)
1104 if ( (s->s3->rbuf.left == 0) &&
1105 (s->s3->wbuf.left == 0) &&
1109 if we are the server, and we have sent a 'RENEGOTIATE' message, we
1110 need to go to SSL_ST_ACCEPT.
\1e
1113 s->state=SSL_ST_RENEGOTIATE;
1114 s->s3->renegotiate=0;
1115 s->s3->num_renegotiations++;
1116 s->s3->total_renegotiations++;