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 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1110 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1114 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1116 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1119 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1123 memset(ret,0,sizeof(SSL_CTX));
1127 ret->cert_store=NULL;
1128 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1129 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1130 ret->session_cache_head=NULL;
1131 ret->session_cache_tail=NULL;
1133 /* We take the system default */
1134 ret->session_timeout=meth->get_timeout();
1136 ret->new_session_cb=NULL;
1137 ret->remove_session_cb=NULL;
1138 ret->get_session_cb=NULL;
1140 memset((char *)&ret->stats,0,sizeof(ret->stats));
1143 ret->quiet_shutdown=0;
1145 /* ret->cipher=NULL;*/
1146 /* ret->s2->challenge=NULL;
1147 ret->master_key=NULL;
1149 ret->s2->conn_id=NULL; */
1151 ret->info_callback=NULL;
1153 ret->app_verify_callback=NULL;
1154 ret->app_verify_arg=NULL;
1157 ret->verify_mode=SSL_VERIFY_NONE;
1158 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1159 ret->default_verify_callback=NULL;
1160 if ((ret->cert=ssl_cert_new()) == NULL)
1163 ret->default_passwd_callback=NULL;
1164 ret->default_passwd_callback_userdata=NULL;
1165 ret->client_cert_cb=NULL;
1167 ret->sessions=lh_new((LHASH_HASH_FN_TYPE)SSL_SESSION_hash,
1168 (LHASH_COMP_FN_TYPE)SSL_SESSION_cmp);
1169 if (ret->sessions == NULL) goto err;
1170 ret->cert_store=X509_STORE_new();
1171 if (ret->cert_store == NULL) goto err;
1173 ssl_create_cipher_list(ret->method,
1174 &ret->cipher_list,&ret->cipher_list_by_id,
1175 SSL_DEFAULT_CIPHER_LIST);
1176 if (ret->cipher_list == NULL
1177 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1179 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1183 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1185 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1188 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1190 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1193 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1195 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1199 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1202 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1204 ret->extra_certs=NULL;
1205 ret->comp_methods=SSL_COMP_get_compression_methods();
1209 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1211 if (ret != NULL) SSL_CTX_free(ret);
1216 static void SSL_COMP_free(SSL_COMP *comp)
1217 { OPENSSL_free(comp); }
1220 void SSL_CTX_free(SSL_CTX *a)
1224 if (a == NULL) return;
1226 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1228 REF_PRINT("SSL_CTX",a);
1234 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1238 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1240 if (a->sessions != NULL)
1242 SSL_CTX_flush_sessions(a,0);
1243 lh_free(a->sessions);
1245 if (a->cert_store != NULL)
1246 X509_STORE_free(a->cert_store);
1247 if (a->cipher_list != NULL)
1248 sk_SSL_CIPHER_free(a->cipher_list);
1249 if (a->cipher_list_by_id != NULL)
1250 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1251 if (a->cert != NULL)
1252 ssl_cert_free(a->cert);
1253 if (a->client_CA != NULL)
1254 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1255 if (a->extra_certs != NULL)
1256 sk_X509_pop_free(a->extra_certs,X509_free);
1257 #if 0 /* This should never be done, since it removes a global database */
1258 if (a->comp_methods != NULL)
1259 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1261 a->comp_methods = NULL;
1266 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1268 ctx->default_passwd_callback=cb;
1271 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1273 ctx->default_passwd_callback_userdata=u;
1276 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1279 * int (*cb)(X509_STORE_CTX *),
1281 * int (*cb)(X509_STORE_CTX *, void *arg)
1283 ctx->app_verify_callback=cb;
1284 ctx->app_verify_arg=arg; /* never used */
1287 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1289 ctx->verify_mode=mode;
1290 ctx->default_verify_callback=cb;
1291 /* This needs cleaning up EAY EAY EAY */
1292 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1295 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1297 ctx->verify_depth=depth;
1300 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1303 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1304 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1305 int rsa_tmp_export,dh_tmp_export,kl;
1306 unsigned long mask,emask;
1308 if (c == NULL) return;
1310 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1313 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1314 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1315 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1317 rsa_tmp=rsa_tmp_export=0;
1320 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1321 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1322 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1324 dh_tmp=dh_tmp_export=0;
1327 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1328 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1329 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1330 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1331 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1332 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1333 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1334 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1335 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1336 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1337 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1338 /* FIX THIS EAY EAY EAY */
1339 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1340 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1346 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1347 rsa_tmp,rsa_tmp_export,dh_tmp,
1348 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1351 if (rsa_enc || (rsa_tmp && rsa_sign))
1353 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1357 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1358 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1359 (rsa_enc || rsa_sign || dsa_sign))
1361 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1362 (rsa_enc || rsa_sign || dsa_sign))
1372 if (dh_rsa) mask|=SSL_kDHr;
1373 if (dh_rsa_export) emask|=SSL_kDHr;
1375 if (dh_dsa) mask|=SSL_kDHd;
1376 if (dh_dsa_export) emask|=SSL_kDHd;
1378 if (rsa_enc || rsa_sign)
1394 mask|=SSL_kKRB5|SSL_aKRB5;
1395 emask|=SSL_kKRB5|SSL_aKRB5;
1399 c->export_mask=emask;
1403 /* THIS NEEDS CLEANING UP */
1404 X509 *ssl_get_server_send_cert(SSL *s)
1406 unsigned long alg,mask,kalg;
1411 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1412 alg=s->s3->tmp.new_cipher->algorithms;
1413 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1414 mask=is_export?c->export_mask:c->mask;
1415 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1417 if (kalg & SSL_kDHr)
1419 else if (kalg & SSL_kDHd)
1421 else if (kalg & SSL_aDSS)
1422 i=SSL_PKEY_DSA_SIGN;
1423 else if (kalg & SSL_aRSA)
1425 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1426 i=SSL_PKEY_RSA_SIGN;
1430 else if (kalg & SSL_aKRB5)
1432 /* VRS something else here? */
1435 else /* if (kalg & SSL_aNULL) */
1437 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1440 if (c->pkeys[i].x509 == NULL) return(NULL);
1441 return(c->pkeys[i].x509);
1444 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1449 alg=cipher->algorithms;
1452 if ((alg & SSL_aDSS) &&
1453 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1454 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1455 else if (alg & SSL_aRSA)
1457 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1458 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1459 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1460 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1464 else /* if (alg & SSL_aNULL) */
1466 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1471 void ssl_update_cache(SSL *s,int mode)
1475 /* If the session_id_length is 0, we are not supposed to cache it,
1476 * and it would be rather hard to do anyway :-) */
1477 if (s->session->session_id_length == 0) return;
1479 if ((s->ctx->session_cache_mode & mode)
1481 && SSL_CTX_add_session(s->ctx,s->session)
1482 && (s->ctx->new_session_cb != NULL))
1484 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1485 if (!s->ctx->new_session_cb(s,s->session))
1486 SSL_SESSION_free(s->session);
1489 /* auto flush every 255 connections */
1490 i=s->ctx->session_cache_mode;
1491 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1492 ((i & mode) == mode))
1494 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1495 ?s->ctx->stats.sess_connect_good
1496 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1498 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1503 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1508 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1513 if (s->method != meth)
1515 if (s->handshake_func != NULL)
1516 conn=(s->handshake_func == s->method->ssl_connect);
1518 if (s->method->version == meth->version)
1522 s->method->ssl_free(s);
1524 ret=s->method->ssl_new(s);
1528 s->handshake_func=meth->ssl_connect;
1530 s->handshake_func=meth->ssl_accept;
1535 int SSL_get_error(SSL *s,int i)
1541 if (i > 0) return(SSL_ERROR_NONE);
1543 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1544 * etc, where we do encode the error */
1545 if ((l=ERR_peek_error()) != 0)
1547 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1548 return(SSL_ERROR_SYSCALL);
1550 return(SSL_ERROR_SSL);
1553 if ((i < 0) && SSL_want_read(s))
1555 bio=SSL_get_rbio(s);
1556 if (BIO_should_read(bio))
1557 return(SSL_ERROR_WANT_READ);
1558 else if (BIO_should_write(bio))
1559 /* This one doesn't make too much sense ... We never try
1560 * to write to the rbio, and an application program where
1561 * rbio and wbio are separate couldn't even know what it
1563 * However if we ever set s->rwstate incorrectly
1564 * (so that we have SSL_want_read(s) instead of
1565 * SSL_want_write(s)) and rbio and wbio *are* the same,
1566 * this test works around that bug; so it might be safer
1568 return(SSL_ERROR_WANT_WRITE);
1569 else if (BIO_should_io_special(bio))
1571 reason=BIO_get_retry_reason(bio);
1572 if (reason == BIO_RR_CONNECT)
1573 return(SSL_ERROR_WANT_CONNECT);
1574 else if (reason == BIO_RR_ACCEPT)
1575 return(SSL_ERROR_WANT_ACCEPT);
1577 return(SSL_ERROR_SYSCALL); /* unknown */
1581 if ((i < 0) && SSL_want_write(s))
1583 bio=SSL_get_wbio(s);
1584 if (BIO_should_write(bio))
1585 return(SSL_ERROR_WANT_WRITE);
1586 else if (BIO_should_read(bio))
1587 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1588 return(SSL_ERROR_WANT_READ);
1589 else if (BIO_should_io_special(bio))
1591 reason=BIO_get_retry_reason(bio);
1592 if (reason == BIO_RR_CONNECT)
1593 return(SSL_ERROR_WANT_CONNECT);
1594 else if (reason == BIO_RR_ACCEPT)
1595 return(SSL_ERROR_WANT_ACCEPT);
1597 return(SSL_ERROR_SYSCALL);
1600 if ((i < 0) && SSL_want_x509_lookup(s))
1602 return(SSL_ERROR_WANT_X509_LOOKUP);
1607 if (s->version == SSL2_VERSION)
1609 /* assume it is the socket being closed */
1610 return(SSL_ERROR_ZERO_RETURN);
1614 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1615 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1616 return(SSL_ERROR_ZERO_RETURN);
1619 return(SSL_ERROR_SYSCALL);
1622 int SSL_do_handshake(SSL *s)
1626 if (s->handshake_func == NULL)
1628 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1632 s->method->ssl_renegotiate_check(s);
1634 if (SSL_in_init(s) || SSL_in_before(s))
1636 ret=s->handshake_func(s);
1641 /* For the next 2 functions, SSL_clear() sets shutdown and so
1642 * one of these calls will reset it */
1643 void SSL_set_accept_state(SSL *s)
1647 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1648 s->handshake_func=s->method->ssl_accept;
1649 /* clear the current cipher */
1650 ssl_clear_cipher_ctx(s);
1653 void SSL_set_connect_state(SSL *s)
1657 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1658 s->handshake_func=s->method->ssl_connect;
1659 /* clear the current cipher */
1660 ssl_clear_cipher_ctx(s);
1663 int ssl_undefined_function(SSL *s)
1665 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1669 SSL_METHOD *ssl_bad_method(int ver)
1671 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1675 const char *SSL_get_version(SSL *s)
1677 if (s->version == TLS1_VERSION)
1679 else if (s->version == SSL3_VERSION)
1681 else if (s->version == SSL2_VERSION)
1687 SSL *SSL_dup(SSL *s)
1689 STACK_OF(X509_NAME) *sk;
1694 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1697 if (s->session != NULL)
1699 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1700 SSL_copy_session_id(ret,s);
1704 /* No session has been established yet, so we have to expect
1705 * that s->cert or ret->cert will be changed later --
1706 * they should not both point to the same object,
1707 * and thus we can't use SSL_copy_session_id. */
1709 ret->method = s->method;
1710 ret->method->ssl_new(ret);
1712 if (s->cert != NULL)
1714 ret->cert = ssl_cert_dup(s->cert);
1715 if (ret->cert == NULL)
1719 SSL_set_session_id_context(ret,
1720 s->sid_ctx, s->sid_ctx_length);
1723 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1724 SSL_set_verify(ret,SSL_get_verify_mode(s),
1725 SSL_get_verify_callback(s));
1726 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1728 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1730 ret->debug=s->debug;
1731 ret->options=s->options;
1733 /* copy app data, a little dangerous perhaps */
1734 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1737 /* setup rbio, and wbio */
1738 if (s->rbio != NULL)
1740 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1743 if (s->wbio != NULL)
1745 if (s->wbio != s->rbio)
1747 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1751 ret->wbio=ret->rbio;
1754 /* dup the cipher_list and cipher_list_by_id stacks */
1755 if (s->cipher_list != NULL)
1757 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1760 if (s->cipher_list_by_id != NULL)
1761 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1765 /* Dup the client_CA list */
1766 if (s->client_CA != NULL)
1768 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1770 for (i=0; i<sk_X509_NAME_num(sk); i++)
1772 xn=sk_X509_NAME_value(sk,i);
1773 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1781 ret->shutdown=s->shutdown;
1782 ret->state=s->state;
1783 ret->handshake_func=s->handshake_func;
1784 ret->server=s->server;
1789 if (ret != NULL) SSL_free(ret);
1795 void ssl_clear_cipher_ctx(SSL *s)
1797 if (s->enc_read_ctx != NULL)
1799 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1800 OPENSSL_free(s->enc_read_ctx);
1801 s->enc_read_ctx=NULL;
1803 if (s->enc_write_ctx != NULL)
1805 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1806 OPENSSL_free(s->enc_write_ctx);
1807 s->enc_write_ctx=NULL;
1809 if (s->expand != NULL)
1811 COMP_CTX_free(s->expand);
1814 if (s->compress != NULL)
1816 COMP_CTX_free(s->compress);
1821 /* Fix this function so that it takes an optional type parameter */
1822 X509 *SSL_get_certificate(SSL *s)
1824 if (s->cert != NULL)
1825 return(s->cert->key->x509);
1830 /* Fix this function so that it takes an optional type parameter */
1831 EVP_PKEY *SSL_get_privatekey(SSL *s)
1833 if (s->cert != NULL)
1834 return(s->cert->key->privatekey);
1839 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1841 if ((s->session != NULL) && (s->session->cipher != NULL))
1842 return(s->session->cipher);
1846 int ssl_init_wbio_buffer(SSL *s,int push)
1850 if (s->bbio == NULL)
1852 bbio=BIO_new(BIO_f_buffer());
1853 if (bbio == NULL) return(0);
1859 if (s->bbio == s->wbio)
1860 s->wbio=BIO_pop(s->wbio);
1862 (void)BIO_reset(bbio);
1863 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1864 if (!BIO_set_read_buffer_size(bbio,1))
1866 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1871 if (s->wbio != bbio)
1872 s->wbio=BIO_push(bbio,s->wbio);
1876 if (s->wbio == bbio)
1877 s->wbio=BIO_pop(bbio);
1882 void ssl_free_wbio_buffer(SSL *s)
1884 if (s->bbio == NULL) return;
1886 if (s->bbio == s->wbio)
1888 /* remove buffering */
1889 s->wbio=BIO_pop(s->wbio);
1890 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1891 assert(s->wbio != NULL);
1898 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1900 ctx->quiet_shutdown=mode;
1903 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1905 return(ctx->quiet_shutdown);
1908 void SSL_set_quiet_shutdown(SSL *s,int mode)
1910 s->quiet_shutdown=mode;
1913 int SSL_get_quiet_shutdown(SSL *s)
1915 return(s->quiet_shutdown);
1918 void SSL_set_shutdown(SSL *s,int mode)
1923 int SSL_get_shutdown(SSL *s)
1925 return(s->shutdown);
1928 int SSL_version(SSL *s)
1933 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1939 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1941 return(X509_STORE_set_default_paths(ctx->cert_store));
1944 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1947 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1951 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1953 ssl->info_callback=cb;
1956 void (*SSL_get_info_callback(SSL *ssl))(void)
1958 return((void (*)())ssl->info_callback);
1961 int SSL_state(SSL *ssl)
1966 void SSL_set_verify_result(SSL *ssl,long arg)
1968 ssl->verify_result=arg;
1971 long SSL_get_verify_result(SSL *ssl)
1973 return(ssl->verify_result);
1976 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1977 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1980 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1981 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1984 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1986 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1989 void *SSL_get_ex_data(SSL *s,int idx)
1991 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1994 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1995 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1998 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1999 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
2002 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2004 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2007 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2009 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2017 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2019 return(ctx->cert_store);
2022 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2024 if (ctx->cert_store != NULL)
2025 X509_STORE_free(ctx->cert_store);
2026 ctx->cert_store=store;
2029 int SSL_want(SSL *s)
2035 * \brief Set the callback for generating temporary RSA keys.
2036 * \param ctx the SSL context.
2037 * \param cb the callback
2041 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2045 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2048 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2052 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2058 * \brief The RSA temporary key callback function.
2059 * \param ssl the SSL session.
2060 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2061 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2062 * of the required key in bits.
2063 * \return the temporary RSA key.
2064 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2067 RSA *cb(SSL *ssl,int is_export,int keylength)
2072 * \brief Set the callback for generating temporary DH keys.
2073 * \param ctx the SSL context.
2074 * \param dh the callback
2078 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2081 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2084 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2087 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2091 #if defined(_WINDLL) && defined(WIN16)
2092 #include "../crypto/bio/bss_file.c"
2095 IMPLEMENT_STACK_OF(SSL_CIPHER)
2096 IMPLEMENT_STACK_OF(SSL_COMP)