1 /*! \file ssl/ssl_lib.c
2 * \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
64 #include <openssl/objects.h>
65 #include <openssl/lhash.h>
66 #include <openssl/x509v3.h>
69 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
71 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
72 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
73 static int ssl_meth_num=0;
74 static int ssl_ctx_meth_num=0;
76 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
77 /* evil casts, but these functions are only called if there's a library bug */
78 (int (*)(SSL *,int))ssl_undefined_function,
79 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
80 ssl_undefined_function,
81 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
82 (int (*)(SSL*, int))ssl_undefined_function,
83 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
90 if (s->method == NULL)
92 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
100 #if 0 /* Disabled since version 1.10 of this file (early return not
101 * needed because SSL_clear is not called when doing renegotiation) */
102 /* This is set if we are doing dynamic renegotiation so keep
103 * the old cipher. It is sort of a SSL_clear_lite :-) */
104 if (s->new_session) return(1);
108 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
113 state=s->state; /* Keep to check if we throw away the session-id */
116 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
118 s->version=s->method->version;
119 s->client_version=s->version;
120 s->rwstate=SSL_NOTHING;
121 s->rstate=SSL_ST_READ_HEADER;
123 s->read_ahead=s->ctx->read_ahead;
126 if (s->init_buf != NULL)
128 BUF_MEM_free(s->init_buf);
132 ssl_clear_cipher_ctx(s);
134 if (ssl_clear_bad_session(s))
136 SSL_SESSION_free(s->session);
143 /* Check to see if we were changed into a different method, if
144 * so, revert back if we are not doing session-id reuse. */
145 if ((s->session == NULL) && (s->method != s->ctx->method))
147 s->method->ssl_free(s);
148 s->method=s->ctx->method;
149 if (!s->method->ssl_new(s))
154 s->method->ssl_clear(s);
158 /** Used to change an SSL_CTXs default SSL method type */
159 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
161 STACK_OF(SSL_CIPHER) *sk;
165 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
166 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
167 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
169 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
175 SSL *SSL_new(SSL_CTX *ctx)
181 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
184 if (ctx->method == NULL)
186 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
190 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
191 if (s == NULL) goto err;
192 memset(s,0,sizeof(SSL));
195 s->kssl_ctx = kssl_ctx_new();
198 if (ctx->cert != NULL)
200 /* Earlier library versions used to copy the pointer to
201 * the CERT, not its contents; only when setting new
202 * parameters for the per-SSL copy, ssl_cert_new would be
203 * called (and the direct reference to the per-SSL_CTX
204 * settings would be lost, but those still were indirectly
205 * accessed for various purposes, and for that reason they
206 * used to be known as s->ctx->default_cert).
207 * Now we don't look at the SSL_CTX's CERT after having
208 * duplicated it once. */
210 s->cert = ssl_cert_dup(ctx->cert);
215 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
216 s->sid_ctx_length=ctx->sid_ctx_length;
217 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
218 s->verify_mode=ctx->verify_mode;
219 s->verify_depth=ctx->verify_depth;
220 s->verify_callback=ctx->default_verify_callback;
221 s->purpose = ctx->purpose;
222 s->trust = ctx->trust;
223 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
226 s->verify_result=X509_V_OK;
228 s->method=ctx->method;
230 if (!s->method->ssl_new(s))
233 s->quiet_shutdown=ctx->quiet_shutdown;
235 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
236 s->options=ctx->options;
238 s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */
241 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
248 ssl_cert_free(s->cert);
250 SSL_CTX_free(s->ctx); /* decrement reference count */
253 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
257 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
258 unsigned int sid_ctx_len)
260 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
262 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
265 ctx->sid_ctx_length=sid_ctx_len;
266 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
271 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
272 unsigned int sid_ctx_len)
274 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
276 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
279 ssl->sid_ctx_length=sid_ctx_len;
280 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
285 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
287 if(X509_PURPOSE_get_by_id(purpose) == -1) {
288 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
291 s->purpose = purpose;
295 int SSL_set_purpose(SSL *s, int purpose)
297 if(X509_PURPOSE_get_by_id(purpose) == -1) {
298 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
301 s->purpose = purpose;
305 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
307 if(X509_TRUST_get_by_id(trust) == -1) {
308 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
315 int SSL_set_trust(SSL *s, int trust)
317 if(X509_TRUST_get_by_id(trust) == -1) {
318 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
325 void SSL_free(SSL *s)
332 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
340 fprintf(stderr,"SSL_free, bad reference count\n");
345 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
349 /* If the buffering BIO is in place, pop it off */
350 if (s->bbio == s->wbio)
352 s->wbio=BIO_pop(s->wbio);
358 BIO_free_all(s->rbio);
359 if ((s->wbio != NULL) && (s->wbio != s->rbio))
360 BIO_free_all(s->wbio);
362 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
364 /* add extra stuff */
365 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
366 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
368 /* Make the next call work :-) */
369 if (s->session != NULL)
371 ssl_clear_bad_session(s);
372 SSL_SESSION_free(s->session);
375 ssl_clear_cipher_ctx(s);
377 if (s->cert != NULL) ssl_cert_free(s->cert);
378 /* Free up if allocated */
380 if (s->ctx) SSL_CTX_free(s->ctx);
382 if (s->client_CA != NULL)
383 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
385 if (s->method != NULL) s->method->ssl_free(s);
390 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
392 /* If the output buffering BIO is still in place, remove it
396 if (s->wbio == s->bbio)
398 s->wbio=s->wbio->next_bio;
399 s->bbio->next_bio=NULL;
402 if ((s->rbio != NULL) && (s->rbio != rbio))
403 BIO_free_all(s->rbio);
404 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
405 BIO_free_all(s->wbio);
410 BIO *SSL_get_rbio(SSL *s)
413 BIO *SSL_get_wbio(SSL *s)
416 int SSL_get_fd(SSL *s)
422 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
429 int SSL_set_fd(SSL *s,int fd)
434 bio=BIO_new(BIO_s_socket());
438 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
441 BIO_set_fd(bio,fd,BIO_NOCLOSE);
442 SSL_set_bio(s,bio,bio);
448 int SSL_set_wfd(SSL *s,int fd)
453 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
454 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
456 bio=BIO_new(BIO_s_socket());
459 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
460 BIO_set_fd(bio,fd,BIO_NOCLOSE);
461 SSL_set_bio(s,SSL_get_rbio(s),bio);
464 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
470 int SSL_set_rfd(SSL *s,int fd)
475 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
476 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
478 bio=BIO_new(BIO_s_socket());
482 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
485 BIO_set_fd(bio,fd,BIO_NOCLOSE);
486 SSL_set_bio(s,bio,SSL_get_wbio(s));
489 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
497 /* return length of latest Finished message we sent, copy to 'buf' */
498 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
504 ret = s->s3->tmp.finish_md_len;
507 memcpy(buf, s->s3->tmp.finish_md, count);
512 /* return length of latest Finished message we expected, copy to 'buf' */
513 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
519 ret = s->s3->tmp.peer_finish_md_len;
522 memcpy(buf, s->s3->tmp.peer_finish_md, count);
528 int SSL_get_verify_mode(SSL *s)
530 return(s->verify_mode);
533 int SSL_get_verify_depth(SSL *s)
535 return(s->verify_depth);
538 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
540 return(s->verify_callback);
543 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
545 return(ctx->verify_mode);
548 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
550 return(ctx->verify_depth);
553 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
555 return(ctx->default_verify_callback);
558 void SSL_set_verify(SSL *s,int mode,
559 int (*callback)(int ok,X509_STORE_CTX *ctx))
562 if (callback != NULL)
563 s->verify_callback=callback;
566 void SSL_set_verify_depth(SSL *s,int depth)
568 s->verify_depth=depth;
571 void SSL_set_read_ahead(SSL *s,int yes)
576 int SSL_get_read_ahead(SSL *s)
578 return(s->read_ahead);
581 int SSL_pending(SSL *s)
583 /* SSL_pending cannot work properly if read-ahead is enabled
584 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
585 * and it is impossible to fix since SSL_pending cannot report
586 * errors that may be observed while scanning the new data.
587 * (Note that SSL_pending() is often used as a boolean value,
588 * so we'd better not return -1.)
590 return(s->method->ssl_pending(s));
593 X509 *SSL_get_peer_certificate(SSL *s)
597 if ((s == NULL) || (s->session == NULL))
602 if (r == NULL) return(r);
604 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
609 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
613 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
616 r=s->session->sess_cert->cert_chain;
618 /* If we are a client, cert_chain includes the peer's own
619 * certificate; if we are a server, it does not. */
624 /* Now in theory, since the calling process own 't' it should be safe to
625 * modify. We need to be able to read f without being hassled */
626 void SSL_copy_session_id(SSL *t,SSL *f)
630 /* Do we need to to SSL locking? */
631 SSL_set_session(t,SSL_get_session(f));
633 /* what if we are setup as SSLv2 but want to talk SSLv3 or
635 if (t->method != f->method)
637 t->method->ssl_free(t); /* cleanup current */
638 t->method=f->method; /* change method */
639 t->method->ssl_new(t); /* setup new */
645 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
650 if (tmp != NULL) ssl_cert_free(tmp);
651 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
654 /* Fix this so it checks all the valid key/cert options */
655 int SSL_CTX_check_private_key(SSL_CTX *ctx)
657 if ( (ctx == NULL) ||
658 (ctx->cert == NULL) ||
659 (ctx->cert->key->x509 == NULL))
661 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
664 if (ctx->cert->key->privatekey == NULL)
666 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
669 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
672 /* Fix this function so that it takes an optional type parameter */
673 int SSL_check_private_key(SSL *ssl)
677 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
680 if (ssl->cert == NULL)
682 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
685 if (ssl->cert->key->x509 == NULL)
687 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
690 if (ssl->cert->key->privatekey == NULL)
692 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
695 return(X509_check_private_key(ssl->cert->key->x509,
696 ssl->cert->key->privatekey));
699 int SSL_accept(SSL *s)
701 if (s->handshake_func == 0)
702 /* Not properly initialized yet */
703 SSL_set_accept_state(s);
705 return(s->method->ssl_accept(s));
708 int SSL_connect(SSL *s)
710 if (s->handshake_func == 0)
711 /* Not properly initialized yet */
712 SSL_set_connect_state(s);
714 return(s->method->ssl_connect(s));
717 long SSL_get_default_timeout(SSL *s)
719 return(s->method->get_timeout());
722 int SSL_read(SSL *s,char *buf,int num)
724 if (s->handshake_func == 0)
726 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
730 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
732 s->rwstate=SSL_NOTHING;
735 return(s->method->ssl_read(s,buf,num));
738 int SSL_peek(SSL *s,char *buf,int num)
740 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
744 return(s->method->ssl_peek(s,buf,num));
747 int SSL_write(SSL *s,const char *buf,int num)
749 if (s->handshake_func == 0)
751 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
755 if (s->shutdown & SSL_SENT_SHUTDOWN)
757 s->rwstate=SSL_NOTHING;
758 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
761 return(s->method->ssl_write(s,buf,num));
764 int SSL_shutdown(SSL *s)
766 /* Note that this function behaves differently from what one might
767 * expect. Return values are 0 for no success (yet),
768 * 1 for success; but calling it once is usually not enough,
769 * even if blocking I/O is used (see ssl3_shutdown).
772 if (s->handshake_func == 0)
774 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
778 if ((s != NULL) && !SSL_in_init(s))
779 return(s->method->ssl_shutdown(s));
784 int SSL_renegotiate(SSL *s)
787 return(s->method->ssl_renegotiate(s));
790 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
796 case SSL_CTRL_GET_READ_AHEAD:
797 return(s->read_ahead);
798 case SSL_CTRL_SET_READ_AHEAD:
802 case SSL_CTRL_OPTIONS:
803 return(s->options|=larg);
805 return(s->mode|=larg);
807 return(s->method->ssl_ctrl(s,cmd,larg,parg));
811 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
816 return(s->method->ssl_callback_ctrl(s,cmd,fp));
820 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
822 return ctx->sessions;
825 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
831 case SSL_CTRL_GET_READ_AHEAD:
832 return(ctx->read_ahead);
833 case SSL_CTRL_SET_READ_AHEAD:
835 ctx->read_ahead=larg;
838 case SSL_CTRL_SET_SESS_CACHE_SIZE:
839 l=ctx->session_cache_size;
840 ctx->session_cache_size=larg;
842 case SSL_CTRL_GET_SESS_CACHE_SIZE:
843 return(ctx->session_cache_size);
844 case SSL_CTRL_SET_SESS_CACHE_MODE:
845 l=ctx->session_cache_mode;
846 ctx->session_cache_mode=larg;
848 case SSL_CTRL_GET_SESS_CACHE_MODE:
849 return(ctx->session_cache_mode);
851 case SSL_CTRL_SESS_NUMBER:
852 return(ctx->sessions->num_items);
853 case SSL_CTRL_SESS_CONNECT:
854 return(ctx->stats.sess_connect);
855 case SSL_CTRL_SESS_CONNECT_GOOD:
856 return(ctx->stats.sess_connect_good);
857 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
858 return(ctx->stats.sess_connect_renegotiate);
859 case SSL_CTRL_SESS_ACCEPT:
860 return(ctx->stats.sess_accept);
861 case SSL_CTRL_SESS_ACCEPT_GOOD:
862 return(ctx->stats.sess_accept_good);
863 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
864 return(ctx->stats.sess_accept_renegotiate);
865 case SSL_CTRL_SESS_HIT:
866 return(ctx->stats.sess_hit);
867 case SSL_CTRL_SESS_CB_HIT:
868 return(ctx->stats.sess_cb_hit);
869 case SSL_CTRL_SESS_MISSES:
870 return(ctx->stats.sess_miss);
871 case SSL_CTRL_SESS_TIMEOUTS:
872 return(ctx->stats.sess_timeout);
873 case SSL_CTRL_SESS_CACHE_FULL:
874 return(ctx->stats.sess_cache_full);
875 case SSL_CTRL_OPTIONS:
876 return(ctx->options|=larg);
878 return(ctx->mode|=larg);
880 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
884 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
889 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
893 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
901 return((l > 0)?1:-1);
904 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
905 const SSL_CIPHER * const *bp)
909 l=(*ap)->id-(*bp)->id;
913 return((l > 0)?1:-1);
916 /** return a STACK of the ciphers available for the SSL and in order of
918 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
920 if ((s != NULL) && (s->cipher_list != NULL))
922 return(s->cipher_list);
924 else if ((s->ctx != NULL) &&
925 (s->ctx->cipher_list != NULL))
927 return(s->ctx->cipher_list);
932 /** return a STACK of the ciphers available for the SSL and in order of
934 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
936 if ((s != NULL) && (s->cipher_list_by_id != NULL))
938 return(s->cipher_list_by_id);
940 else if ((s != NULL) && (s->ctx != NULL) &&
941 (s->ctx->cipher_list_by_id != NULL))
943 return(s->ctx->cipher_list_by_id);
948 /** The old interface to get the same thing as SSL_get_ciphers() */
949 const char *SSL_get_cipher_list(SSL *s,int n)
952 STACK_OF(SSL_CIPHER) *sk;
954 if (s == NULL) return(NULL);
955 sk=SSL_get_ciphers(s);
956 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
958 c=sk_SSL_CIPHER_value(sk,n);
959 if (c == NULL) return(NULL);
963 /** specify the ciphers to be used by default by the SSL_CTX */
964 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
966 STACK_OF(SSL_CIPHER) *sk;
968 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
969 &ctx->cipher_list_by_id,str);
971 return((sk == NULL)?0:1);
974 /** specify the ciphers to be used by the SSL */
975 int SSL_set_cipher_list(SSL *s,const char *str)
977 STACK_OF(SSL_CIPHER) *sk;
979 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
980 &s->cipher_list_by_id,str);
982 return((sk == NULL)?0:1);
985 /* works well for SSLv2, not so good for SSLv3 */
986 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
990 STACK_OF(SSL_CIPHER) *sk;
994 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
999 sk=s->session->ciphers;
1000 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1002 /* Decrement for either the ':' or a '\0' */
1004 c=sk_SSL_CIPHER_value(sk,i);
1005 for (cp=c->name; *cp; )
1021 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1027 if (sk == NULL) return(0);
1030 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1032 c=sk_SSL_CIPHER_value(sk,i);
1033 j=ssl_put_cipher_by_char(s,c,p);
1039 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1040 STACK_OF(SSL_CIPHER) **skp)
1043 STACK_OF(SSL_CIPHER) *sk;
1046 n=ssl_put_cipher_by_char(s,NULL,NULL);
1049 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1052 if ((skp == NULL) || (*skp == NULL))
1053 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1057 sk_SSL_CIPHER_zero(sk);
1060 for (i=0; i<num; i+=n)
1062 c=ssl_get_cipher_by_char(s,p);
1066 if (!sk_SSL_CIPHER_push(sk,c))
1068 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1078 if ((skp == NULL) || (*skp == NULL))
1079 sk_SSL_CIPHER_free(sk);
1083 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1088 ((unsigned int) a->session_id[0] )|
1089 ((unsigned int) a->session_id[1]<< 8L)|
1090 ((unsigned long)a->session_id[2]<<16L)|
1091 ((unsigned long)a->session_id[3]<<24L);
1095 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1097 if (a->ssl_version != b->ssl_version)
1099 if (a->session_id_length != b->session_id_length)
1101 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1104 /* These wrapper functions should remain rather than redeclaring
1105 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1106 * variable. The reason is that the functions aren't static, they're exposed via
1108 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1109 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1111 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1117 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1121 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1123 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1126 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1130 memset(ret,0,sizeof(SSL_CTX));
1134 ret->cert_store=NULL;
1135 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1136 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1137 ret->session_cache_head=NULL;
1138 ret->session_cache_tail=NULL;
1140 /* We take the system default */
1141 ret->session_timeout=meth->get_timeout();
1143 ret->new_session_cb=NULL;
1144 ret->remove_session_cb=NULL;
1145 ret->get_session_cb=NULL;
1147 memset((char *)&ret->stats,0,sizeof(ret->stats));
1150 ret->quiet_shutdown=0;
1152 /* ret->cipher=NULL;*/
1153 /* ret->s2->challenge=NULL;
1154 ret->master_key=NULL;
1156 ret->s2->conn_id=NULL; */
1158 ret->info_callback=NULL;
1160 ret->app_verify_callback=NULL;
1161 ret->app_verify_arg=NULL;
1164 ret->verify_mode=SSL_VERIFY_NONE;
1165 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1166 ret->default_verify_callback=NULL;
1167 if ((ret->cert=ssl_cert_new()) == NULL)
1170 ret->default_passwd_callback=NULL;
1171 ret->default_passwd_callback_userdata=NULL;
1172 ret->client_cert_cb=NULL;
1174 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1175 LHASH_COMP_FN(SSL_SESSION_cmp));
1176 if (ret->sessions == NULL) goto err;
1177 ret->cert_store=X509_STORE_new();
1178 if (ret->cert_store == NULL) goto err;
1180 ssl_create_cipher_list(ret->method,
1181 &ret->cipher_list,&ret->cipher_list_by_id,
1182 SSL_DEFAULT_CIPHER_LIST);
1183 if (ret->cipher_list == NULL
1184 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1186 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1190 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1192 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1195 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1197 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1200 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1202 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1206 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1209 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1211 ret->extra_certs=NULL;
1212 ret->comp_methods=SSL_COMP_get_compression_methods();
1216 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1218 if (ret != NULL) SSL_CTX_free(ret);
1223 static void SSL_COMP_free(SSL_COMP *comp)
1224 { OPENSSL_free(comp); }
1227 void SSL_CTX_free(SSL_CTX *a)
1231 if (a == NULL) return;
1233 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1235 REF_PRINT("SSL_CTX",a);
1241 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1245 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1247 if (a->sessions != NULL)
1249 SSL_CTX_flush_sessions(a,0);
1250 lh_free(a->sessions);
1252 if (a->cert_store != NULL)
1253 X509_STORE_free(a->cert_store);
1254 if (a->cipher_list != NULL)
1255 sk_SSL_CIPHER_free(a->cipher_list);
1256 if (a->cipher_list_by_id != NULL)
1257 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1258 if (a->cert != NULL)
1259 ssl_cert_free(a->cert);
1260 if (a->client_CA != NULL)
1261 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1262 if (a->extra_certs != NULL)
1263 sk_X509_pop_free(a->extra_certs,X509_free);
1264 #if 0 /* This should never be done, since it removes a global database */
1265 if (a->comp_methods != NULL)
1266 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1268 a->comp_methods = NULL;
1273 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1275 ctx->default_passwd_callback=cb;
1278 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1280 ctx->default_passwd_callback_userdata=u;
1283 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1286 * int (*cb)(X509_STORE_CTX *),
1288 * int (*cb)(X509_STORE_CTX *, void *arg)
1290 ctx->app_verify_callback=cb;
1291 ctx->app_verify_arg=arg; /* never used */
1294 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1296 ctx->verify_mode=mode;
1297 ctx->default_verify_callback=cb;
1298 /* This needs cleaning up EAY EAY EAY */
1299 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1302 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1304 ctx->verify_depth=depth;
1307 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1310 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1311 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1312 int rsa_tmp_export,dh_tmp_export,kl;
1313 unsigned long mask,emask;
1315 if (c == NULL) return;
1317 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1320 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1321 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1322 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1324 rsa_tmp=rsa_tmp_export=0;
1327 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1328 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1329 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1331 dh_tmp=dh_tmp_export=0;
1334 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1335 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1336 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1337 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1338 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1339 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1340 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1341 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1342 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1343 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1344 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1345 /* FIX THIS EAY EAY EAY */
1346 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1347 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1353 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1354 rsa_tmp,rsa_tmp_export,dh_tmp,
1355 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1358 if (rsa_enc || (rsa_tmp && rsa_sign))
1360 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1364 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1365 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1366 (rsa_enc || rsa_sign || dsa_sign))
1368 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1369 (rsa_enc || rsa_sign || dsa_sign))
1379 if (dh_rsa) mask|=SSL_kDHr;
1380 if (dh_rsa_export) emask|=SSL_kDHr;
1382 if (dh_dsa) mask|=SSL_kDHd;
1383 if (dh_dsa_export) emask|=SSL_kDHd;
1385 if (rsa_enc || rsa_sign)
1401 mask|=SSL_kKRB5|SSL_aKRB5;
1402 emask|=SSL_kKRB5|SSL_aKRB5;
1406 c->export_mask=emask;
1410 /* THIS NEEDS CLEANING UP */
1411 X509 *ssl_get_server_send_cert(SSL *s)
1413 unsigned long alg,mask,kalg;
1418 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1419 alg=s->s3->tmp.new_cipher->algorithms;
1420 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1421 mask=is_export?c->export_mask:c->mask;
1422 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1424 if (kalg & SSL_kDHr)
1426 else if (kalg & SSL_kDHd)
1428 else if (kalg & SSL_aDSS)
1429 i=SSL_PKEY_DSA_SIGN;
1430 else if (kalg & SSL_aRSA)
1432 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1433 i=SSL_PKEY_RSA_SIGN;
1437 else if (kalg & SSL_aKRB5)
1439 /* VRS something else here? */
1442 else /* if (kalg & SSL_aNULL) */
1444 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1447 if (c->pkeys[i].x509 == NULL) return(NULL);
1448 return(c->pkeys[i].x509);
1451 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1456 alg=cipher->algorithms;
1459 if ((alg & SSL_aDSS) &&
1460 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1461 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1462 else if (alg & SSL_aRSA)
1464 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1465 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1466 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1467 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1471 else /* if (alg & SSL_aNULL) */
1473 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1478 void ssl_update_cache(SSL *s,int mode)
1482 /* If the session_id_length is 0, we are not supposed to cache it,
1483 * and it would be rather hard to do anyway :-) */
1484 if (s->session->session_id_length == 0) return;
1486 if ((s->ctx->session_cache_mode & mode)
1488 && SSL_CTX_add_session(s->ctx,s->session)
1489 && (s->ctx->new_session_cb != NULL))
1491 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1492 if (!s->ctx->new_session_cb(s,s->session))
1493 SSL_SESSION_free(s->session);
1496 /* auto flush every 255 connections */
1497 i=s->ctx->session_cache_mode;
1498 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1499 ((i & mode) == mode))
1501 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1502 ?s->ctx->stats.sess_connect_good
1503 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1505 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1510 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1515 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1520 if (s->method != meth)
1522 if (s->handshake_func != NULL)
1523 conn=(s->handshake_func == s->method->ssl_connect);
1525 if (s->method->version == meth->version)
1529 s->method->ssl_free(s);
1531 ret=s->method->ssl_new(s);
1535 s->handshake_func=meth->ssl_connect;
1537 s->handshake_func=meth->ssl_accept;
1542 int SSL_get_error(SSL *s,int i)
1548 if (i > 0) return(SSL_ERROR_NONE);
1550 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1551 * etc, where we do encode the error */
1552 if ((l=ERR_peek_error()) != 0)
1554 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1555 return(SSL_ERROR_SYSCALL);
1557 return(SSL_ERROR_SSL);
1560 if ((i < 0) && SSL_want_read(s))
1562 bio=SSL_get_rbio(s);
1563 if (BIO_should_read(bio))
1564 return(SSL_ERROR_WANT_READ);
1565 else if (BIO_should_write(bio))
1566 /* This one doesn't make too much sense ... We never try
1567 * to write to the rbio, and an application program where
1568 * rbio and wbio are separate couldn't even know what it
1570 * However if we ever set s->rwstate incorrectly
1571 * (so that we have SSL_want_read(s) instead of
1572 * SSL_want_write(s)) and rbio and wbio *are* the same,
1573 * this test works around that bug; so it might be safer
1575 return(SSL_ERROR_WANT_WRITE);
1576 else if (BIO_should_io_special(bio))
1578 reason=BIO_get_retry_reason(bio);
1579 if (reason == BIO_RR_CONNECT)
1580 return(SSL_ERROR_WANT_CONNECT);
1581 else if (reason == BIO_RR_ACCEPT)
1582 return(SSL_ERROR_WANT_ACCEPT);
1584 return(SSL_ERROR_SYSCALL); /* unknown */
1588 if ((i < 0) && SSL_want_write(s))
1590 bio=SSL_get_wbio(s);
1591 if (BIO_should_write(bio))
1592 return(SSL_ERROR_WANT_WRITE);
1593 else if (BIO_should_read(bio))
1594 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1595 return(SSL_ERROR_WANT_READ);
1596 else if (BIO_should_io_special(bio))
1598 reason=BIO_get_retry_reason(bio);
1599 if (reason == BIO_RR_CONNECT)
1600 return(SSL_ERROR_WANT_CONNECT);
1601 else if (reason == BIO_RR_ACCEPT)
1602 return(SSL_ERROR_WANT_ACCEPT);
1604 return(SSL_ERROR_SYSCALL);
1607 if ((i < 0) && SSL_want_x509_lookup(s))
1609 return(SSL_ERROR_WANT_X509_LOOKUP);
1614 if (s->version == SSL2_VERSION)
1616 /* assume it is the socket being closed */
1617 return(SSL_ERROR_ZERO_RETURN);
1621 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1622 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1623 return(SSL_ERROR_ZERO_RETURN);
1626 return(SSL_ERROR_SYSCALL);
1629 int SSL_do_handshake(SSL *s)
1633 if (s->handshake_func == NULL)
1635 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1639 s->method->ssl_renegotiate_check(s);
1641 if (SSL_in_init(s) || SSL_in_before(s))
1643 ret=s->handshake_func(s);
1648 /* For the next 2 functions, SSL_clear() sets shutdown and so
1649 * one of these calls will reset it */
1650 void SSL_set_accept_state(SSL *s)
1654 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1655 s->handshake_func=s->method->ssl_accept;
1656 /* clear the current cipher */
1657 ssl_clear_cipher_ctx(s);
1660 void SSL_set_connect_state(SSL *s)
1664 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1665 s->handshake_func=s->method->ssl_connect;
1666 /* clear the current cipher */
1667 ssl_clear_cipher_ctx(s);
1670 int ssl_undefined_function(SSL *s)
1672 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1676 SSL_METHOD *ssl_bad_method(int ver)
1678 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1682 const char *SSL_get_version(SSL *s)
1684 if (s->version == TLS1_VERSION)
1686 else if (s->version == SSL3_VERSION)
1688 else if (s->version == SSL2_VERSION)
1694 SSL *SSL_dup(SSL *s)
1696 STACK_OF(X509_NAME) *sk;
1701 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1704 if (s->session != NULL)
1706 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1707 SSL_copy_session_id(ret,s);
1711 /* No session has been established yet, so we have to expect
1712 * that s->cert or ret->cert will be changed later --
1713 * they should not both point to the same object,
1714 * and thus we can't use SSL_copy_session_id. */
1716 ret->method = s->method;
1717 ret->method->ssl_new(ret);
1719 if (s->cert != NULL)
1721 if (ret->cert != NULL)
1723 ssl_cert_free(ret->cert);
1725 ret->cert = ssl_cert_dup(s->cert);
1726 if (ret->cert == NULL)
1730 SSL_set_session_id_context(ret,
1731 s->sid_ctx, s->sid_ctx_length);
1734 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1735 SSL_set_verify(ret,SSL_get_verify_mode(s),
1736 SSL_get_verify_callback(s));
1737 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1739 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1741 ret->debug=s->debug;
1742 ret->options=s->options;
1744 /* copy app data, a little dangerous perhaps */
1745 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1748 /* setup rbio, and wbio */
1749 if (s->rbio != NULL)
1751 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1754 if (s->wbio != NULL)
1756 if (s->wbio != s->rbio)
1758 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1762 ret->wbio=ret->rbio;
1765 /* dup the cipher_list and cipher_list_by_id stacks */
1766 if (s->cipher_list != NULL)
1768 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1771 if (s->cipher_list_by_id != NULL)
1772 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1776 /* Dup the client_CA list */
1777 if (s->client_CA != NULL)
1779 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1781 for (i=0; i<sk_X509_NAME_num(sk); i++)
1783 xn=sk_X509_NAME_value(sk,i);
1784 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1792 ret->shutdown=s->shutdown;
1793 ret->state=s->state;
1794 ret->handshake_func=s->handshake_func;
1795 ret->server=s->server;
1800 if (ret != NULL) SSL_free(ret);
1806 void ssl_clear_cipher_ctx(SSL *s)
1808 if (s->enc_read_ctx != NULL)
1810 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1811 OPENSSL_free(s->enc_read_ctx);
1812 s->enc_read_ctx=NULL;
1814 if (s->enc_write_ctx != NULL)
1816 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1817 OPENSSL_free(s->enc_write_ctx);
1818 s->enc_write_ctx=NULL;
1820 if (s->expand != NULL)
1822 COMP_CTX_free(s->expand);
1825 if (s->compress != NULL)
1827 COMP_CTX_free(s->compress);
1832 /* Fix this function so that it takes an optional type parameter */
1833 X509 *SSL_get_certificate(SSL *s)
1835 if (s->cert != NULL)
1836 return(s->cert->key->x509);
1841 /* Fix this function so that it takes an optional type parameter */
1842 EVP_PKEY *SSL_get_privatekey(SSL *s)
1844 if (s->cert != NULL)
1845 return(s->cert->key->privatekey);
1850 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1852 if ((s->session != NULL) && (s->session->cipher != NULL))
1853 return(s->session->cipher);
1857 int ssl_init_wbio_buffer(SSL *s,int push)
1861 if (s->bbio == NULL)
1863 bbio=BIO_new(BIO_f_buffer());
1864 if (bbio == NULL) return(0);
1870 if (s->bbio == s->wbio)
1871 s->wbio=BIO_pop(s->wbio);
1873 (void)BIO_reset(bbio);
1874 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1875 if (!BIO_set_read_buffer_size(bbio,1))
1877 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1882 if (s->wbio != bbio)
1883 s->wbio=BIO_push(bbio,s->wbio);
1887 if (s->wbio == bbio)
1888 s->wbio=BIO_pop(bbio);
1893 void ssl_free_wbio_buffer(SSL *s)
1895 if (s->bbio == NULL) return;
1897 if (s->bbio == s->wbio)
1899 /* remove buffering */
1900 s->wbio=BIO_pop(s->wbio);
1901 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1902 assert(s->wbio != NULL);
1909 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1911 ctx->quiet_shutdown=mode;
1914 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1916 return(ctx->quiet_shutdown);
1919 void SSL_set_quiet_shutdown(SSL *s,int mode)
1921 s->quiet_shutdown=mode;
1924 int SSL_get_quiet_shutdown(SSL *s)
1926 return(s->quiet_shutdown);
1929 void SSL_set_shutdown(SSL *s,int mode)
1934 int SSL_get_shutdown(SSL *s)
1936 return(s->shutdown);
1939 int SSL_version(SSL *s)
1944 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1950 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1952 return(X509_STORE_set_default_paths(ctx->cert_store));
1955 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1958 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1962 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1964 ssl->info_callback=cb;
1967 void (*SSL_get_info_callback(SSL *ssl))(void)
1969 return((void (*)())ssl->info_callback);
1972 int SSL_state(SSL *ssl)
1977 void SSL_set_verify_result(SSL *ssl,long arg)
1979 ssl->verify_result=arg;
1982 long SSL_get_verify_result(SSL *ssl)
1984 return(ssl->verify_result);
1987 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1988 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1991 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1992 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1995 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1997 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2000 void *SSL_get_ex_data(SSL *s,int idx)
2002 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2005 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2006 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2009 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
2010 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
2013 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2015 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2018 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2020 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2028 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2030 return(ctx->cert_store);
2033 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2035 if (ctx->cert_store != NULL)
2036 X509_STORE_free(ctx->cert_store);
2037 ctx->cert_store=store;
2040 int SSL_want(SSL *s)
2046 * \brief Set the callback for generating temporary RSA keys.
2047 * \param ctx the SSL context.
2048 * \param cb the callback
2052 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2056 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2059 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2063 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2069 * \brief The RSA temporary key callback function.
2070 * \param ssl the SSL session.
2071 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2072 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2073 * of the required key in bits.
2074 * \return the temporary RSA key.
2075 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2078 RSA *cb(SSL *ssl,int is_export,int keylength)
2083 * \brief Set the callback for generating temporary DH keys.
2084 * \param ctx the SSL context.
2085 * \param dh the callback
2089 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2092 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2095 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2098 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2102 #if defined(_WINDLL) && defined(WIN16)
2103 #include "../crypto/bio/bss_file.c"
2106 IMPLEMENT_STACK_OF(SSL_CIPHER)
2107 IMPLEMENT_STACK_OF(SSL_COMP)