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.]
62 #include <openssl/objects.h>
63 #include <openssl/lhash.h>
64 #include <openssl/x509v3.h>
67 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
69 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
70 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
71 static int ssl_meth_num=0;
72 static int ssl_ctx_meth_num=0;
74 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
75 /* evil casts, but these functions are only called if there's a library bug */
76 (int (*)(SSL *,int))ssl_undefined_function,
77 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
78 ssl_undefined_function,
79 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
80 (int (*)(SSL*, int))ssl_undefined_function,
81 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
84 union rsa_fn_to_char_u
87 RSA *(*fn_p)(SSL *, int, int);
93 DH *(*fn_p)(SSL *, int, int);
100 if (s->method == NULL)
102 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
110 #if 0 /* Disabled since version 1.10 of this file (early return not
111 * needed because SSL_clear is not called when doing renegotiation) */
112 /* This is set if we are doing dynamic renegotiation so keep
113 * the old cipher. It is sort of a SSL_clear_lite :-) */
114 if (s->new_session) return(1);
118 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
123 state=s->state; /* Keep to check if we throw away the session-id */
126 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
128 s->version=s->method->version;
129 s->client_version=s->version;
130 s->rwstate=SSL_NOTHING;
131 s->rstate=SSL_ST_READ_HEADER;
132 s->read_ahead=s->ctx->read_ahead;
134 if (s->init_buf != NULL)
136 BUF_MEM_free(s->init_buf);
140 ssl_clear_cipher_ctx(s);
142 if (ssl_clear_bad_session(s))
144 SSL_SESSION_free(s->session);
151 /* Check to see if we were changed into a different method, if
152 * so, revert back if we are not doing session-id reuse. */
153 if ((s->session == NULL) && (s->method != s->ctx->method))
155 s->method->ssl_free(s);
156 s->method=s->ctx->method;
157 if (!s->method->ssl_new(s))
162 s->method->ssl_clear(s);
166 /** Used to change an SSL_CTXs default SSL method type */
167 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
169 STACK_OF(SSL_CIPHER) *sk;
173 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
174 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
175 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
177 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
183 SSL *SSL_new(SSL_CTX *ctx)
189 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
192 if (ctx->method == NULL)
194 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
198 s=(SSL *)Malloc(sizeof(SSL));
199 if (s == NULL) goto err;
200 memset(s,0,sizeof(SSL));
202 if (ctx->cert != NULL)
204 /* Earlier library versions used to copy the pointer to
205 * the CERT, not its contents; only when setting new
206 * parameters for the per-SSL copy, ssl_cert_new would be
207 * called (and the direct reference to the per-SSL_CTX
208 * settings would be lost, but those still were indirectly
209 * accessed for various purposes, and for that reason they
210 * used to be known as s->ctx->default_cert).
211 * Now we don't look at the SSL_CTX's CERT after having
212 * duplicated it once. */
214 s->cert = ssl_cert_dup(ctx->cert);
219 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
220 s->sid_ctx_length=ctx->sid_ctx_length;
221 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
222 s->verify_mode=ctx->verify_mode;
223 s->verify_depth=ctx->verify_depth;
224 s->verify_callback=ctx->default_verify_callback;
225 s->purpose = ctx->purpose;
226 s->trust = ctx->trust;
227 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
230 s->verify_result=X509_V_OK;
232 s->method=ctx->method;
234 if (!s->method->ssl_new(s))
237 s->quiet_shutdown=ctx->quiet_shutdown;
239 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
240 s->options=ctx->options;
244 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
251 ssl_cert_free(s->cert);
253 SSL_CTX_free(s->ctx); /* decrement reference count */
256 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
260 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
261 unsigned int sid_ctx_len)
263 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
265 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
268 ctx->sid_ctx_length=sid_ctx_len;
269 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
274 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
275 unsigned int sid_ctx_len)
277 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
279 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
282 ssl->sid_ctx_length=sid_ctx_len;
283 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
288 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
290 if(X509_PURPOSE_get_by_id(purpose) == -1) {
291 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
294 s->purpose = purpose;
298 int SSL_set_purpose(SSL *s, int purpose)
300 if(X509_PURPOSE_get_by_id(purpose) == -1) {
301 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
304 s->purpose = purpose;
308 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
310 if(X509_TRUST_get_by_id(trust) == -1) {
311 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
318 int SSL_set_trust(SSL *s, int trust)
320 if(X509_TRUST_get_by_id(trust) == -1) {
321 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
328 void SSL_free(SSL *s)
335 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
343 fprintf(stderr,"SSL_free, bad reference count\n");
348 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
352 /* If the buffering BIO is in place, pop it off */
353 if (s->bbio == s->wbio)
355 s->wbio=BIO_pop(s->wbio);
361 BIO_free_all(s->rbio);
362 if ((s->wbio != NULL) && (s->wbio != s->rbio))
363 BIO_free_all(s->wbio);
365 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
367 /* add extra stuff */
368 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
369 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
371 /* Make the next call work :-) */
372 if (s->session != NULL)
374 ssl_clear_bad_session(s);
375 SSL_SESSION_free(s->session);
378 ssl_clear_cipher_ctx(s);
380 if (s->cert != NULL) ssl_cert_free(s->cert);
381 /* Free up if allocated */
383 if (s->ctx) SSL_CTX_free(s->ctx);
385 if (s->client_CA != NULL)
386 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
388 if (s->method != NULL) s->method->ssl_free(s);
393 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
395 /* If the output buffering BIO is still in place, remove it
399 if (s->wbio == s->bbio)
401 s->wbio=s->wbio->next_bio;
402 s->bbio->next_bio=NULL;
405 if ((s->rbio != NULL) && (s->rbio != rbio))
406 BIO_free_all(s->rbio);
407 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
408 BIO_free_all(s->wbio);
413 BIO *SSL_get_rbio(SSL *s)
416 BIO *SSL_get_wbio(SSL *s)
419 int SSL_get_fd(SSL *s)
425 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
432 int SSL_set_fd(SSL *s,int fd)
437 bio=BIO_new(BIO_s_socket());
441 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
444 BIO_set_fd(bio,fd,BIO_NOCLOSE);
445 SSL_set_bio(s,bio,bio);
451 int SSL_set_wfd(SSL *s,int fd)
456 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
457 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
459 bio=BIO_new(BIO_s_socket());
462 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
463 BIO_set_fd(bio,fd,BIO_NOCLOSE);
464 SSL_set_bio(s,SSL_get_rbio(s),bio);
467 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
473 int SSL_set_rfd(SSL *s,int fd)
478 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
479 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
481 bio=BIO_new(BIO_s_socket());
485 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
488 BIO_set_fd(bio,fd,BIO_NOCLOSE);
489 SSL_set_bio(s,bio,SSL_get_wbio(s));
492 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
500 /* return length of latest Finished message we sent, copy to 'buf' */
501 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
507 ret = s->s3->tmp.finish_md_len;
510 memcpy(buf, s->s3->tmp.finish_md, count);
515 /* return length of latest Finished message we expected, copy to 'buf' */
516 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
522 ret = s->s3->tmp.peer_finish_md_len;
525 memcpy(buf, s->s3->tmp.peer_finish_md, count);
531 int SSL_get_verify_mode(SSL *s)
533 return(s->verify_mode);
536 int SSL_get_verify_depth(SSL *s)
538 return(s->verify_depth);
541 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
543 return(s->verify_callback);
546 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
548 return(ctx->verify_mode);
551 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
553 return(ctx->verify_depth);
556 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
558 return(ctx->default_verify_callback);
561 void SSL_set_verify(SSL *s,int mode,
562 int (*callback)(int ok,X509_STORE_CTX *ctx))
565 if (callback != NULL)
566 s->verify_callback=callback;
569 void SSL_set_verify_depth(SSL *s,int depth)
571 s->verify_depth=depth;
574 void SSL_set_read_ahead(SSL *s,int yes)
579 int SSL_get_read_ahead(SSL *s)
581 return(s->read_ahead);
584 int SSL_pending(SSL *s)
586 return(s->method->ssl_pending(s));
589 X509 *SSL_get_peer_certificate(SSL *s)
593 if ((s == NULL) || (s->session == NULL))
598 if (r == NULL) return(r);
600 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
605 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
609 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
612 r=s->session->sess_cert->cert_chain;
617 /* Now in theory, since the calling process own 't' it should be safe to
618 * modify. We need to be able to read f without being hassled */
619 void SSL_copy_session_id(SSL *t,SSL *f)
623 /* Do we need to to SSL locking? */
624 SSL_set_session(t,SSL_get_session(f));
626 /* what if we are setup as SSLv2 but want to talk SSLv3 or
628 if (t->method != f->method)
630 t->method->ssl_free(t); /* cleanup current */
631 t->method=f->method; /* change method */
632 t->method->ssl_new(t); /* setup new */
638 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
643 if (tmp != NULL) ssl_cert_free(tmp);
644 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
647 /* Fix this so it checks all the valid key/cert options */
648 int SSL_CTX_check_private_key(SSL_CTX *ctx)
650 if ( (ctx == NULL) ||
651 (ctx->cert == NULL) ||
652 (ctx->cert->key->x509 == NULL))
654 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
657 if (ctx->cert->key->privatekey == NULL)
659 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
662 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
665 /* Fix this function so that it takes an optional type parameter */
666 int SSL_check_private_key(SSL *ssl)
670 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
673 if (ssl->cert == NULL)
675 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
678 if (ssl->cert->key->x509 == NULL)
680 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
683 if (ssl->cert->key->privatekey == NULL)
685 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
688 return(X509_check_private_key(ssl->cert->key->x509,
689 ssl->cert->key->privatekey));
692 int SSL_accept(SSL *s)
694 if (s->handshake_func == 0)
695 /* Not properly initialized yet */
696 SSL_set_accept_state(s);
698 return(s->method->ssl_accept(s));
701 int SSL_connect(SSL *s)
703 if (s->handshake_func == 0)
704 /* Not properly initialized yet */
705 SSL_set_connect_state(s);
707 return(s->method->ssl_connect(s));
710 long SSL_get_default_timeout(SSL *s)
712 return(s->method->get_timeout());
715 int SSL_read(SSL *s,char *buf,int num)
717 if (s->handshake_func == 0)
719 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
723 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
725 s->rwstate=SSL_NOTHING;
728 return(s->method->ssl_read(s,buf,num));
731 int SSL_peek(SSL *s,char *buf,int num)
733 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
737 return(s->method->ssl_peek(s,buf,num));
740 int SSL_write(SSL *s,const char *buf,int num)
742 if (s->handshake_func == 0)
744 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
748 if (s->shutdown & SSL_SENT_SHUTDOWN)
750 s->rwstate=SSL_NOTHING;
751 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
754 return(s->method->ssl_write(s,buf,num));
757 int SSL_shutdown(SSL *s)
759 /* Note that this function behaves differently from what one might
760 * expect. Return values are 0 for no success (yet),
761 * 1 for success; but calling it once is usually not enough,
762 * even if blocking I/O is used (see ssl3_shutdown).
765 if (s->handshake_func == 0)
767 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
771 if ((s != NULL) && !SSL_in_init(s))
772 return(s->method->ssl_shutdown(s));
777 int SSL_renegotiate(SSL *s)
780 return(s->method->ssl_renegotiate(s));
783 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
789 case SSL_CTRL_GET_READ_AHEAD:
790 return(s->read_ahead);
791 case SSL_CTRL_SET_READ_AHEAD:
795 case SSL_CTRL_OPTIONS:
796 return(s->options|=larg);
798 return(s->mode|=larg);
800 return(s->method->ssl_ctrl(s,cmd,larg,parg));
804 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
809 return(s->method->ssl_callback_ctrl(s,cmd,fp));
813 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
819 case SSL_CTRL_GET_READ_AHEAD:
820 return(ctx->read_ahead);
821 case SSL_CTRL_SET_READ_AHEAD:
823 ctx->read_ahead=larg;
826 case SSL_CTRL_SET_SESS_CACHE_SIZE:
827 l=ctx->session_cache_size;
828 ctx->session_cache_size=larg;
830 case SSL_CTRL_GET_SESS_CACHE_SIZE:
831 return(ctx->session_cache_size);
832 case SSL_CTRL_SET_SESS_CACHE_MODE:
833 l=ctx->session_cache_mode;
834 ctx->session_cache_mode=larg;
836 case SSL_CTRL_GET_SESS_CACHE_MODE:
837 return(ctx->session_cache_mode);
839 case SSL_CTRL_SESS_NUMBER:
840 return(ctx->sessions->num_items);
841 case SSL_CTRL_SESS_CONNECT:
842 return(ctx->stats.sess_connect);
843 case SSL_CTRL_SESS_CONNECT_GOOD:
844 return(ctx->stats.sess_connect_good);
845 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
846 return(ctx->stats.sess_connect_renegotiate);
847 case SSL_CTRL_SESS_ACCEPT:
848 return(ctx->stats.sess_accept);
849 case SSL_CTRL_SESS_ACCEPT_GOOD:
850 return(ctx->stats.sess_accept_good);
851 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
852 return(ctx->stats.sess_accept_renegotiate);
853 case SSL_CTRL_SESS_HIT:
854 return(ctx->stats.sess_hit);
855 case SSL_CTRL_SESS_CB_HIT:
856 return(ctx->stats.sess_cb_hit);
857 case SSL_CTRL_SESS_MISSES:
858 return(ctx->stats.sess_miss);
859 case SSL_CTRL_SESS_TIMEOUTS:
860 return(ctx->stats.sess_timeout);
861 case SSL_CTRL_SESS_CACHE_FULL:
862 return(ctx->stats.sess_cache_full);
863 case SSL_CTRL_OPTIONS:
864 return(ctx->options|=larg);
866 return(ctx->mode|=larg);
868 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
872 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
877 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
881 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
889 return((l > 0)?1:-1);
892 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
896 l=(*ap)->id-(*bp)->id;
900 return((l > 0)?1:-1);
903 /** return a STACK of the ciphers available for the SSL and in order of
905 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
907 if ((s != NULL) && (s->cipher_list != NULL))
909 return(s->cipher_list);
911 else if ((s->ctx != NULL) &&
912 (s->ctx->cipher_list != NULL))
914 return(s->ctx->cipher_list);
919 /** return a STACK of the ciphers available for the SSL and in order of
921 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
923 if ((s != NULL) && (s->cipher_list_by_id != NULL))
925 return(s->cipher_list_by_id);
927 else if ((s != NULL) && (s->ctx != NULL) &&
928 (s->ctx->cipher_list_by_id != NULL))
930 return(s->ctx->cipher_list_by_id);
935 /** The old interface to get the same thing as SSL_get_ciphers() */
936 const char *SSL_get_cipher_list(SSL *s,int n)
939 STACK_OF(SSL_CIPHER) *sk;
941 if (s == NULL) return(NULL);
942 sk=SSL_get_ciphers(s);
943 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
945 c=sk_SSL_CIPHER_value(sk,n);
946 if (c == NULL) return(NULL);
950 /** specify the ciphers to be used by default by the SSL_CTX */
951 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
953 STACK_OF(SSL_CIPHER) *sk;
955 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
956 &ctx->cipher_list_by_id,str);
958 return((sk == NULL)?0:1);
961 /** specify the ciphers to be used by the SSL */
962 int SSL_set_cipher_list(SSL *s,const char *str)
964 STACK_OF(SSL_CIPHER) *sk;
966 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
967 &s->cipher_list_by_id,str);
969 return((sk == NULL)?0:1);
972 /* works well for SSLv2, not so good for SSLv3 */
973 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
977 STACK_OF(SSL_CIPHER) *sk;
981 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
986 sk=s->session->ciphers;
987 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
989 /* Decrement for either the ':' or a '\0' */
991 c=sk_SSL_CIPHER_value(sk,i);
992 for (cp=c->name; *cp; )
1008 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1014 if (sk == NULL) return(0);
1017 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1019 c=sk_SSL_CIPHER_value(sk,i);
1020 j=ssl_put_cipher_by_char(s,c,p);
1026 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1027 STACK_OF(SSL_CIPHER) **skp)
1030 STACK_OF(SSL_CIPHER) *sk;
1033 n=ssl_put_cipher_by_char(s,NULL,NULL);
1036 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1039 if ((skp == NULL) || (*skp == NULL))
1040 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1044 sk_SSL_CIPHER_zero(sk);
1047 for (i=0; i<num; i+=n)
1049 c=ssl_get_cipher_by_char(s,p);
1053 if (!sk_SSL_CIPHER_push(sk,c))
1055 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1065 if ((skp == NULL) || (*skp == NULL))
1066 sk_SSL_CIPHER_free(sk);
1070 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1075 ((unsigned int) a->session_id[0] )|
1076 ((unsigned int) a->session_id[1]<< 8L)|
1077 ((unsigned long)a->session_id[2]<<16L)|
1078 ((unsigned long)a->session_id[3]<<24L);
1082 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1084 if (a->ssl_version != b->ssl_version)
1086 if (a->session_id_length != b->session_id_length)
1088 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1091 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1097 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1101 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1103 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1106 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
1110 memset(ret,0,sizeof(SSL_CTX));
1114 ret->cert_store=NULL;
1115 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1116 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1117 ret->session_cache_head=NULL;
1118 ret->session_cache_tail=NULL;
1120 /* We take the system default */
1121 ret->session_timeout=meth->get_timeout();
1123 ret->new_session_cb=NULL;
1124 ret->remove_session_cb=NULL;
1125 ret->get_session_cb=NULL;
1127 memset((char *)&ret->stats,0,sizeof(ret->stats));
1130 ret->quiet_shutdown=0;
1132 /* ret->cipher=NULL;*/
1133 /* ret->s2->challenge=NULL;
1134 ret->master_key=NULL;
1136 ret->s2->conn_id=NULL; */
1138 ret->info_callback=NULL;
1140 ret->app_verify_callback=NULL;
1141 ret->app_verify_arg=NULL;
1144 ret->verify_mode=SSL_VERIFY_NONE;
1145 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1146 ret->default_verify_callback=NULL;
1147 if ((ret->cert=ssl_cert_new()) == NULL)
1150 ret->default_passwd_callback=NULL;
1151 ret->default_passwd_callback_userdata=NULL;
1152 ret->client_cert_cb=NULL;
1154 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1155 if (ret->sessions == NULL) goto err;
1156 ret->cert_store=X509_STORE_new();
1157 if (ret->cert_store == NULL) goto err;
1159 ssl_create_cipher_list(ret->method,
1160 &ret->cipher_list,&ret->cipher_list_by_id,
1161 SSL_DEFAULT_CIPHER_LIST);
1162 if (ret->cipher_list == NULL
1163 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1165 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1169 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1171 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1174 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1176 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1179 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1181 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1185 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1188 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1190 ret->extra_certs=NULL;
1191 ret->comp_methods=SSL_COMP_get_compression_methods();
1195 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1197 if (ret != NULL) SSL_CTX_free(ret);
1201 static void SSL_COMP_free(SSL_COMP *comp)
1204 void SSL_CTX_free(SSL_CTX *a)
1208 if (a == NULL) return;
1210 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1212 REF_PRINT("SSL_CTX",a);
1218 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1222 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1224 if (a->sessions != NULL)
1226 SSL_CTX_flush_sessions(a,0);
1227 lh_free(a->sessions);
1229 if (a->cert_store != NULL)
1230 X509_STORE_free(a->cert_store);
1231 if (a->cipher_list != NULL)
1232 sk_SSL_CIPHER_free(a->cipher_list);
1233 if (a->cipher_list_by_id != NULL)
1234 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1235 if (a->cert != NULL)
1236 ssl_cert_free(a->cert);
1237 if (a->client_CA != NULL)
1238 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1239 if (a->extra_certs != NULL)
1240 sk_X509_pop_free(a->extra_certs,X509_free);
1241 if (a->comp_methods != NULL)
1242 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1246 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1248 ctx->default_passwd_callback=cb;
1251 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1253 ctx->default_passwd_callback_userdata=u;
1256 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1259 * int (*cb)(X509_STORE_CTX *),
1261 * int (*cb)(X509_STORE_CTX *, void *arg)
1263 ctx->app_verify_callback=cb;
1264 ctx->app_verify_arg=arg; /* never used */
1267 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1269 ctx->verify_mode=mode;
1270 ctx->default_verify_callback=cb;
1271 /* This needs cleaning up EAY EAY EAY */
1272 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1275 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1277 ctx->verify_depth=depth;
1280 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1283 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1284 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1285 int rsa_tmp_export,dh_tmp_export,kl;
1286 unsigned long mask,emask;
1288 if (c == NULL) return;
1290 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1293 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1294 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1295 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1297 rsa_tmp=rsa_tmp_export=0;
1300 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1301 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1302 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1304 dh_tmp=dh_tmp_export=0;
1307 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1308 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1309 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1310 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1311 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1312 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1313 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1314 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1315 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1316 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1317 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1318 /* FIX THIS EAY EAY EAY */
1319 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1320 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1326 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1327 rsa_tmp,rsa_tmp_export,dh_tmp,
1328 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1331 if (rsa_enc || (rsa_tmp && rsa_sign))
1333 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1337 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1338 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1339 (rsa_enc || rsa_sign || dsa_sign))
1341 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1342 (rsa_enc || rsa_sign || dsa_sign))
1352 if (dh_rsa) mask|=SSL_kDHr;
1353 if (dh_rsa_export) emask|=SSL_kDHr;
1355 if (dh_dsa) mask|=SSL_kDHd;
1356 if (dh_dsa_export) emask|=SSL_kDHd;
1358 if (rsa_enc || rsa_sign)
1374 c->export_mask=emask;
1378 /* THIS NEEDS CLEANING UP */
1379 X509 *ssl_get_server_send_cert(SSL *s)
1381 unsigned long alg,mask,kalg;
1386 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1387 alg=s->s3->tmp.new_cipher->algorithms;
1388 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1389 mask=is_export?c->export_mask:c->mask;
1390 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1392 if (kalg & SSL_kDHr)
1394 else if (kalg & SSL_kDHd)
1396 else if (kalg & SSL_aDSS)
1397 i=SSL_PKEY_DSA_SIGN;
1398 else if (kalg & SSL_aRSA)
1400 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1401 i=SSL_PKEY_RSA_SIGN;
1405 else /* if (kalg & SSL_aNULL) */
1407 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1410 if (c->pkeys[i].x509 == NULL) return(NULL);
1411 return(c->pkeys[i].x509);
1414 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1419 alg=cipher->algorithms;
1422 if ((alg & SSL_aDSS) &&
1423 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1424 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1425 else if (alg & SSL_aRSA)
1427 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1428 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1429 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1430 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1434 else /* if (alg & SSL_aNULL) */
1436 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1441 void ssl_update_cache(SSL *s,int mode)
1445 /* If the session_id_length is 0, we are not supposed to cache it,
1446 * and it would be rather hard to do anyway :-) */
1447 if (s->session->session_id_length == 0) return;
1449 if ((s->ctx->session_cache_mode & mode)
1451 && SSL_CTX_add_session(s->ctx,s->session)
1452 && (s->ctx->new_session_cb != NULL))
1454 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1455 if (!s->ctx->new_session_cb(s,s->session))
1456 SSL_SESSION_free(s->session);
1459 /* auto flush every 255 connections */
1460 i=s->ctx->session_cache_mode;
1461 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1462 ((i & mode) == mode))
1464 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1465 ?s->ctx->stats.sess_connect_good
1466 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1468 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1473 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1478 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1483 if (s->method != meth)
1485 if (s->handshake_func != NULL)
1486 conn=(s->handshake_func == s->method->ssl_connect);
1488 if (s->method->version == meth->version)
1492 s->method->ssl_free(s);
1494 ret=s->method->ssl_new(s);
1498 s->handshake_func=meth->ssl_connect;
1500 s->handshake_func=meth->ssl_accept;
1505 int SSL_get_error(SSL *s,int i)
1511 if (i > 0) return(SSL_ERROR_NONE);
1513 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1514 * etc, where we do encode the error */
1515 if ((l=ERR_peek_error()) != 0)
1517 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1518 return(SSL_ERROR_SYSCALL);
1520 return(SSL_ERROR_SSL);
1523 if ((i < 0) && SSL_want_read(s))
1525 bio=SSL_get_rbio(s);
1526 if (BIO_should_read(bio))
1527 return(SSL_ERROR_WANT_READ);
1528 else if (BIO_should_write(bio))
1529 /* This one doesn't make too much sense ... We never try
1530 * to write to the rbio, and an application program where
1531 * rbio and wbio are separate couldn't even know what it
1533 * However if we ever set s->rwstate incorrectly
1534 * (so that we have SSL_want_read(s) instead of
1535 * SSL_want_write(s)) and rbio and wbio *are* the same,
1536 * this test works around that bug; so it might be safer
1538 return(SSL_ERROR_WANT_WRITE);
1539 else if (BIO_should_io_special(bio))
1541 reason=BIO_get_retry_reason(bio);
1542 if (reason == BIO_RR_CONNECT)
1543 return(SSL_ERROR_WANT_CONNECT);
1545 return(SSL_ERROR_SYSCALL); /* unknown */
1549 if ((i < 0) && SSL_want_write(s))
1551 bio=SSL_get_wbio(s);
1552 if (BIO_should_write(bio))
1553 return(SSL_ERROR_WANT_WRITE);
1554 else if (BIO_should_read(bio))
1555 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1556 return(SSL_ERROR_WANT_READ);
1557 else if (BIO_should_io_special(bio))
1559 reason=BIO_get_retry_reason(bio);
1560 if (reason == BIO_RR_CONNECT)
1561 return(SSL_ERROR_WANT_CONNECT);
1563 return(SSL_ERROR_SYSCALL);
1566 if ((i < 0) && SSL_want_x509_lookup(s))
1568 return(SSL_ERROR_WANT_X509_LOOKUP);
1573 if (s->version == SSL2_VERSION)
1575 /* assume it is the socket being closed */
1576 return(SSL_ERROR_ZERO_RETURN);
1580 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1581 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1582 return(SSL_ERROR_ZERO_RETURN);
1585 return(SSL_ERROR_SYSCALL);
1588 int SSL_do_handshake(SSL *s)
1592 if (s->handshake_func == NULL)
1594 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1598 s->method->ssl_renegotiate_check(s);
1600 if (SSL_in_init(s) || SSL_in_before(s))
1602 ret=s->handshake_func(s);
1607 /* For the next 2 functions, SSL_clear() sets shutdown and so
1608 * one of these calls will reset it */
1609 void SSL_set_accept_state(SSL *s)
1613 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1614 s->handshake_func=s->method->ssl_accept;
1615 /* clear the current cipher */
1616 ssl_clear_cipher_ctx(s);
1619 void SSL_set_connect_state(SSL *s)
1623 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1624 s->handshake_func=s->method->ssl_connect;
1625 /* clear the current cipher */
1626 ssl_clear_cipher_ctx(s);
1629 int ssl_undefined_function(SSL *s)
1631 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1635 SSL_METHOD *ssl_bad_method(int ver)
1637 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1641 const char *SSL_get_version(SSL *s)
1643 if (s->version == TLS1_VERSION)
1645 else if (s->version == SSL3_VERSION)
1647 else if (s->version == SSL2_VERSION)
1653 SSL *SSL_dup(SSL *s)
1655 STACK_OF(X509_NAME) *sk;
1660 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1663 if (s->session != NULL)
1665 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1666 SSL_copy_session_id(ret,s);
1670 /* No session has been established yet, so we have to expect
1671 * that s->cert or ret->cert will be changed later --
1672 * they should not both point to the same object,
1673 * and thus we can't use SSL_copy_session_id. */
1675 ret->method = s->method;
1676 ret->method->ssl_new(ret);
1678 if (s->cert != NULL)
1680 ret->cert = ssl_cert_dup(s->cert);
1681 if (ret->cert == NULL)
1685 SSL_set_session_id_context(ret,
1686 s->sid_ctx, s->sid_ctx_length);
1689 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1690 SSL_set_verify(ret,SSL_get_verify_mode(s),
1691 SSL_get_verify_callback(s));
1692 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1694 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1696 ret->debug=s->debug;
1697 ret->options=s->options;
1699 /* copy app data, a little dangerous perhaps */
1700 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1703 /* setup rbio, and wbio */
1704 if (s->rbio != NULL)
1706 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1709 if (s->wbio != NULL)
1711 if (s->wbio != s->rbio)
1713 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1717 ret->wbio=ret->rbio;
1720 /* dup the cipher_list and cipher_list_by_id stacks */
1721 if (s->cipher_list != NULL)
1723 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1726 if (s->cipher_list_by_id != NULL)
1727 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1731 /* Dup the client_CA list */
1732 if (s->client_CA != NULL)
1734 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1736 for (i=0; i<sk_X509_NAME_num(sk); i++)
1738 xn=sk_X509_NAME_value(sk,i);
1739 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1747 ret->shutdown=s->shutdown;
1748 ret->state=s->state;
1749 ret->handshake_func=s->handshake_func;
1750 ret->server=s->server;
1755 if (ret != NULL) SSL_free(ret);
1761 void ssl_clear_cipher_ctx(SSL *s)
1763 if (s->enc_read_ctx != NULL)
1765 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1766 Free(s->enc_read_ctx);
1767 s->enc_read_ctx=NULL;
1769 if (s->enc_write_ctx != NULL)
1771 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1772 Free(s->enc_write_ctx);
1773 s->enc_write_ctx=NULL;
1775 if (s->expand != NULL)
1777 COMP_CTX_free(s->expand);
1780 if (s->compress != NULL)
1782 COMP_CTX_free(s->compress);
1787 /* Fix this function so that it takes an optional type parameter */
1788 X509 *SSL_get_certificate(SSL *s)
1790 if (s->cert != NULL)
1791 return(s->cert->key->x509);
1796 /* Fix this function so that it takes an optional type parameter */
1797 EVP_PKEY *SSL_get_privatekey(SSL *s)
1799 if (s->cert != NULL)
1800 return(s->cert->key->privatekey);
1805 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1807 if ((s->session != NULL) && (s->session->cipher != NULL))
1808 return(s->session->cipher);
1812 int ssl_init_wbio_buffer(SSL *s,int push)
1816 if (s->bbio == NULL)
1818 bbio=BIO_new(BIO_f_buffer());
1819 if (bbio == NULL) return(0);
1825 if (s->bbio == s->wbio)
1826 s->wbio=BIO_pop(s->wbio);
1828 (void)BIO_reset(bbio);
1829 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1830 if (!BIO_set_read_buffer_size(bbio,1))
1832 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1837 if (s->wbio != bbio)
1838 s->wbio=BIO_push(bbio,s->wbio);
1842 if (s->wbio == bbio)
1843 s->wbio=BIO_pop(bbio);
1848 void ssl_free_wbio_buffer(SSL *s)
1852 if (s->bbio == NULL) return;
1854 if (s->bbio == s->wbio)
1856 /* remove buffering */
1857 under=BIO_pop(s->wbio);
1867 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1869 ctx->quiet_shutdown=mode;
1872 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1874 return(ctx->quiet_shutdown);
1877 void SSL_set_quiet_shutdown(SSL *s,int mode)
1879 s->quiet_shutdown=mode;
1882 int SSL_get_quiet_shutdown(SSL *s)
1884 return(s->quiet_shutdown);
1887 void SSL_set_shutdown(SSL *s,int mode)
1892 int SSL_get_shutdown(SSL *s)
1894 return(s->shutdown);
1897 int SSL_version(SSL *s)
1902 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1908 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1910 return(X509_STORE_set_default_paths(ctx->cert_store));
1913 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1916 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1920 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1922 ssl->info_callback=cb;
1925 void (*SSL_get_info_callback(SSL *ssl))(void)
1927 return((void (*)())ssl->info_callback);
1930 int SSL_state(SSL *ssl)
1935 void SSL_set_verify_result(SSL *ssl,long arg)
1937 ssl->verify_result=arg;
1940 long SSL_get_verify_result(SSL *ssl)
1942 return(ssl->verify_result);
1945 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1946 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1949 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1950 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1953 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1955 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1958 void *SSL_get_ex_data(SSL *s,int idx)
1960 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1963 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1964 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1967 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1968 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1971 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1973 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1976 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1978 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1986 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1988 return(ctx->cert_store);
1991 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1993 if (ctx->cert_store != NULL)
1994 X509_STORE_free(ctx->cert_store);
1995 ctx->cert_store=store;
1998 int SSL_want(SSL *s)
2004 * \brief Set the callback for generating temporary RSA keys.
2005 * \param ctx the SSL context.
2006 * \param cb the callback
2010 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2014 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2017 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2021 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2027 * \brief The RSA temporary key callback function.
2028 * \param ssl the SSL session.
2029 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2030 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2031 * of the required key in bits.
2032 * \return the temporary RSA key.
2033 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2036 RSA *cb(SSL *ssl,int is_export,int keylength)
2041 * \brief Set the callback for generating temporary DH keys.
2042 * \param ctx the SSL context.
2043 * \param dh the callback
2047 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2050 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2053 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2056 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2060 #if defined(_WINDLL) && defined(WIN16)
2061 #include "../crypto/bio/bss_file.c"
2064 IMPLEMENT_STACK_OF(SSL_CIPHER)
2065 IMPLEMENT_STACK_OF(SSL_COMP)