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.]
60 /* ====================================================================
61 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
119 #include "ssl_locl.h"
120 #include "kssl_lcl.h"
121 #include <openssl/objects.h>
122 #include <openssl/lhash.h>
123 #include <openssl/x509v3.h>
124 #include <openssl/fips.h>
126 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
128 SSL3_ENC_METHOD ssl3_undef_enc_method={
129 /* evil casts, but these functions are only called if there's a library bug */
130 (int (*)(SSL *,int))ssl_undefined_function,
131 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
132 ssl_undefined_function,
133 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
134 (int (*)(SSL*, int))ssl_undefined_function,
135 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
138 int SSL_clear(SSL *s)
141 if (s->method == NULL)
143 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
147 if (ssl_clear_bad_session(s))
149 SSL_SESSION_free(s->session);
157 #if 0 /* Disabled since version 1.10 of this file (early return not
158 * needed because SSL_clear is not called when doing renegotiation) */
159 /* This is set if we are doing dynamic renegotiation so keep
160 * the old cipher. It is sort of a SSL_clear_lite :-) */
161 if (s->new_session) return(1);
165 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
172 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
174 s->version=s->method->version;
175 s->client_version=s->version;
176 s->rwstate=SSL_NOTHING;
177 s->rstate=SSL_ST_READ_HEADER;
179 s->read_ahead=s->ctx->read_ahead;
182 if (s->init_buf != NULL)
184 BUF_MEM_free(s->init_buf);
188 ssl_clear_cipher_ctx(s);
193 /* Check to see if we were changed into a different method, if
194 * so, revert back if we are not doing session-id reuse. */
195 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
197 s->method->ssl_free(s);
198 s->method=s->ctx->method;
199 if (!s->method->ssl_new(s))
204 s->method->ssl_clear(s);
208 /** Used to change an SSL_CTXs default SSL method type */
209 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
211 STACK_OF(SSL_CIPHER) *sk;
215 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
216 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
217 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
219 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
225 SSL *SSL_new(SSL_CTX *ctx)
231 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
234 if (ctx->method == NULL)
236 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
240 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
241 if (s == NULL) goto err;
242 memset(s,0,sizeof(SSL));
244 #ifndef OPENSSL_NO_KRB5
245 s->kssl_ctx = kssl_ctx_new();
246 #endif /* OPENSSL_NO_KRB5 */
248 s->options=ctx->options;
250 s->max_cert_list=ctx->max_cert_list;
252 if (ctx->cert != NULL)
254 /* Earlier library versions used to copy the pointer to
255 * the CERT, not its contents; only when setting new
256 * parameters for the per-SSL copy, ssl_cert_new would be
257 * called (and the direct reference to the per-SSL_CTX
258 * settings would be lost, but those still were indirectly
259 * accessed for various purposes, and for that reason they
260 * used to be known as s->ctx->default_cert).
261 * Now we don't look at the SSL_CTX's CERT after having
262 * duplicated it once. */
264 s->cert = ssl_cert_dup(ctx->cert);
269 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
271 s->read_ahead=ctx->read_ahead;
272 s->msg_callback=ctx->msg_callback;
273 s->msg_callback_arg=ctx->msg_callback_arg;
274 s->verify_mode=ctx->verify_mode;
275 s->verify_depth=ctx->verify_depth;
276 s->sid_ctx_length=ctx->sid_ctx_length;
277 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
278 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
279 s->verify_callback=ctx->default_verify_callback;
280 s->generate_session_id=ctx->generate_session_id;
281 s->purpose = ctx->purpose;
282 s->trust = ctx->trust;
283 s->quiet_shutdown=ctx->quiet_shutdown;
285 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
288 s->verify_result=X509_V_OK;
290 s->method=ctx->method;
292 if (!s->method->ssl_new(s))
296 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
300 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
307 ssl_cert_free(s->cert);
309 SSL_CTX_free(s->ctx); /* decrement reference count */
312 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
316 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
317 unsigned int sid_ctx_len)
319 if(sid_ctx_len > sizeof ctx->sid_ctx)
321 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
324 ctx->sid_ctx_length=sid_ctx_len;
325 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
330 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
331 unsigned int sid_ctx_len)
333 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
335 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
338 ssl->sid_ctx_length=sid_ctx_len;
339 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
344 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
346 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
347 ctx->generate_session_id = cb;
348 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
352 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
354 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
355 ssl->generate_session_id = cb;
356 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
360 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
363 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
364 * we can "construct" a session to give us the desired check - ie. to
365 * find if there's a session in the hash table that would conflict with
366 * any new session built out of this id/id_len and the ssl_version in
367 * use by this SSL. */
370 if(id_len > sizeof r.session_id)
373 r.ssl_version = ssl->version;
374 r.session_id_length = id_len;
375 memcpy(r.session_id, id, id_len);
376 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
377 * callback is calling us to check the uniqueness of a shorter ID, it
378 * must be compared as a padded-out ID because that is what it will be
379 * converted to when the callback has finished choosing it. */
380 if((r.ssl_version == SSL2_VERSION) &&
381 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
383 memset(r.session_id + id_len, 0,
384 SSL2_SSL_SESSION_ID_LENGTH - id_len);
385 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
388 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
389 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
390 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
394 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
396 return X509_PURPOSE_set(&s->purpose, purpose);
399 int SSL_set_purpose(SSL *s, int purpose)
401 return X509_PURPOSE_set(&s->purpose, purpose);
404 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
406 return X509_TRUST_set(&s->trust, trust);
409 int SSL_set_trust(SSL *s, int trust)
411 return X509_TRUST_set(&s->trust, trust);
414 void SSL_free(SSL *s)
421 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
429 fprintf(stderr,"SSL_free, bad reference count\n");
434 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
438 /* If the buffering BIO is in place, pop it off */
439 if (s->bbio == s->wbio)
441 s->wbio=BIO_pop(s->wbio);
447 BIO_free_all(s->rbio);
448 if ((s->wbio != NULL) && (s->wbio != s->rbio))
449 BIO_free_all(s->wbio);
451 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
453 /* add extra stuff */
454 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
455 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
457 /* Make the next call work :-) */
458 if (s->session != NULL)
460 ssl_clear_bad_session(s);
461 SSL_SESSION_free(s->session);
464 ssl_clear_cipher_ctx(s);
466 if (s->cert != NULL) ssl_cert_free(s->cert);
467 /* Free up if allocated */
469 if (s->ctx) SSL_CTX_free(s->ctx);
471 if (s->client_CA != NULL)
472 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
474 if (s->method != NULL) s->method->ssl_free(s);
476 #ifndef OPENSSL_NO_KRB5
477 if (s->kssl_ctx != NULL)
478 kssl_ctx_free(s->kssl_ctx);
479 #endif /* OPENSSL_NO_KRB5 */
484 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
486 /* If the output buffering BIO is still in place, remove it
490 if (s->wbio == s->bbio)
492 s->wbio=s->wbio->next_bio;
493 s->bbio->next_bio=NULL;
496 if ((s->rbio != NULL) && (s->rbio != rbio))
497 BIO_free_all(s->rbio);
498 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
499 BIO_free_all(s->wbio);
504 BIO *SSL_get_rbio(const SSL *s)
507 BIO *SSL_get_wbio(const SSL *s)
510 int SSL_get_fd(const SSL *s)
512 return(SSL_get_rfd(s));
515 int SSL_get_rfd(const SSL *s)
521 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
527 int SSL_get_wfd(const SSL *s)
533 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
539 #ifndef OPENSSL_NO_SOCK
540 int SSL_set_fd(SSL *s,int fd)
545 bio=BIO_new(BIO_s_socket());
549 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
552 BIO_set_fd(bio,fd,BIO_NOCLOSE);
553 SSL_set_bio(s,bio,bio);
559 int SSL_set_wfd(SSL *s,int fd)
564 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
565 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
567 bio=BIO_new(BIO_s_socket());
570 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
571 BIO_set_fd(bio,fd,BIO_NOCLOSE);
572 SSL_set_bio(s,SSL_get_rbio(s),bio);
575 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
581 int SSL_set_rfd(SSL *s,int fd)
586 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
587 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
589 bio=BIO_new(BIO_s_socket());
593 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
596 BIO_set_fd(bio,fd,BIO_NOCLOSE);
597 SSL_set_bio(s,bio,SSL_get_wbio(s));
600 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
608 /* return length of latest Finished message we sent, copy to 'buf' */
609 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
615 ret = s->s3->tmp.finish_md_len;
618 memcpy(buf, s->s3->tmp.finish_md, count);
623 /* return length of latest Finished message we expected, copy to 'buf' */
624 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
630 ret = s->s3->tmp.peer_finish_md_len;
633 memcpy(buf, s->s3->tmp.peer_finish_md, count);
639 int SSL_get_verify_mode(const SSL *s)
641 return(s->verify_mode);
644 int SSL_get_verify_depth(const SSL *s)
646 return(s->verify_depth);
649 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
651 return(s->verify_callback);
654 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
656 return(ctx->verify_mode);
659 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
661 return(ctx->verify_depth);
664 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
666 return(ctx->default_verify_callback);
669 void SSL_set_verify(SSL *s,int mode,
670 int (*callback)(int ok,X509_STORE_CTX *ctx))
673 if (callback != NULL)
674 s->verify_callback=callback;
677 void SSL_set_verify_depth(SSL *s,int depth)
679 s->verify_depth=depth;
682 void SSL_set_read_ahead(SSL *s,int yes)
687 int SSL_get_read_ahead(const SSL *s)
689 return(s->read_ahead);
692 int SSL_pending(const SSL *s)
694 /* SSL_pending cannot work properly if read-ahead is enabled
695 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
696 * and it is impossible to fix since SSL_pending cannot report
697 * errors that may be observed while scanning the new data.
698 * (Note that SSL_pending() is often used as a boolean value,
699 * so we'd better not return -1.)
701 return(s->method->ssl_pending(s));
704 X509 *SSL_get_peer_certificate(const SSL *s)
708 if ((s == NULL) || (s->session == NULL))
713 if (r == NULL) return(r);
715 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
720 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
724 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
727 r=s->session->sess_cert->cert_chain;
729 /* If we are a client, cert_chain includes the peer's own
730 * certificate; if we are a server, it does not. */
735 /* Now in theory, since the calling process own 't' it should be safe to
736 * modify. We need to be able to read f without being hassled */
737 void SSL_copy_session_id(SSL *t,const SSL *f)
741 /* Do we need to to SSL locking? */
742 SSL_set_session(t,SSL_get_session(f));
744 /* what if we are setup as SSLv2 but want to talk SSLv3 or
746 if (t->method != f->method)
748 t->method->ssl_free(t); /* cleanup current */
749 t->method=f->method; /* change method */
750 t->method->ssl_new(t); /* setup new */
756 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
761 if (tmp != NULL) ssl_cert_free(tmp);
762 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
765 /* Fix this so it checks all the valid key/cert options */
766 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
768 if ( (ctx == NULL) ||
769 (ctx->cert == NULL) ||
770 (ctx->cert->key->x509 == NULL))
772 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
775 if (ctx->cert->key->privatekey == NULL)
777 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
780 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
783 /* Fix this function so that it takes an optional type parameter */
784 int SSL_check_private_key(const SSL *ssl)
788 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
791 if (ssl->cert == NULL)
793 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
796 if (ssl->cert->key->x509 == NULL)
798 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
801 if (ssl->cert->key->privatekey == NULL)
803 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
806 return(X509_check_private_key(ssl->cert->key->x509,
807 ssl->cert->key->privatekey));
810 int SSL_accept(SSL *s)
812 if (s->handshake_func == 0)
813 /* Not properly initialized yet */
814 SSL_set_accept_state(s);
816 return(s->method->ssl_accept(s));
819 int SSL_connect(SSL *s)
821 if (s->handshake_func == 0)
822 /* Not properly initialized yet */
823 SSL_set_connect_state(s);
825 return(s->method->ssl_connect(s));
828 long SSL_get_default_timeout(const SSL *s)
830 return(s->method->get_timeout());
833 int SSL_read(SSL *s,void *buf,int num)
835 if (s->handshake_func == 0)
837 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
841 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
843 s->rwstate=SSL_NOTHING;
846 return(s->method->ssl_read(s,buf,num));
849 int SSL_peek(SSL *s,void *buf,int num)
851 if (s->handshake_func == 0)
853 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
857 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
861 return(s->method->ssl_peek(s,buf,num));
864 int SSL_write(SSL *s,const void *buf,int num)
866 if (s->handshake_func == 0)
868 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
872 if (s->shutdown & SSL_SENT_SHUTDOWN)
874 s->rwstate=SSL_NOTHING;
875 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
878 return(s->method->ssl_write(s,buf,num));
881 int SSL_shutdown(SSL *s)
883 /* Note that this function behaves differently from what one might
884 * expect. Return values are 0 for no success (yet),
885 * 1 for success; but calling it once is usually not enough,
886 * even if blocking I/O is used (see ssl3_shutdown).
889 if (s->handshake_func == 0)
891 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
895 if ((s != NULL) && !SSL_in_init(s))
896 return(s->method->ssl_shutdown(s));
901 int SSL_renegotiate(SSL *s)
903 if (s->new_session == 0)
907 return(s->method->ssl_renegotiate(s));
910 int SSL_renegotiate_pending(SSL *s)
912 /* becomes true when negotiation is requested;
913 * false again once a handshake has finished */
914 return (s->new_session != 0);
917 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
923 case SSL_CTRL_GET_READ_AHEAD:
924 return(s->read_ahead);
925 case SSL_CTRL_SET_READ_AHEAD:
930 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
931 s->msg_callback_arg = parg;
934 case SSL_CTRL_OPTIONS:
935 return(s->options|=larg);
937 return(s->mode|=larg);
938 case SSL_CTRL_GET_MAX_CERT_LIST:
939 return(s->max_cert_list);
940 case SSL_CTRL_SET_MAX_CERT_LIST:
942 s->max_cert_list=larg;
945 return(s->method->ssl_ctrl(s,cmd,larg,parg));
949 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
953 case SSL_CTRL_SET_MSG_CALLBACK:
954 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
958 return(s->method->ssl_callback_ctrl(s,cmd,fp));
962 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
964 return ctx->sessions;
967 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
973 case SSL_CTRL_GET_READ_AHEAD:
974 return(ctx->read_ahead);
975 case SSL_CTRL_SET_READ_AHEAD:
977 ctx->read_ahead=larg;
980 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
981 ctx->msg_callback_arg = parg;
984 case SSL_CTRL_GET_MAX_CERT_LIST:
985 return(ctx->max_cert_list);
986 case SSL_CTRL_SET_MAX_CERT_LIST:
987 l=ctx->max_cert_list;
988 ctx->max_cert_list=larg;
991 case SSL_CTRL_SET_SESS_CACHE_SIZE:
992 l=ctx->session_cache_size;
993 ctx->session_cache_size=larg;
995 case SSL_CTRL_GET_SESS_CACHE_SIZE:
996 return(ctx->session_cache_size);
997 case SSL_CTRL_SET_SESS_CACHE_MODE:
998 l=ctx->session_cache_mode;
999 ctx->session_cache_mode=larg;
1001 case SSL_CTRL_GET_SESS_CACHE_MODE:
1002 return(ctx->session_cache_mode);
1004 case SSL_CTRL_SESS_NUMBER:
1005 return(ctx->sessions->num_items);
1006 case SSL_CTRL_SESS_CONNECT:
1007 return(ctx->stats.sess_connect);
1008 case SSL_CTRL_SESS_CONNECT_GOOD:
1009 return(ctx->stats.sess_connect_good);
1010 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1011 return(ctx->stats.sess_connect_renegotiate);
1012 case SSL_CTRL_SESS_ACCEPT:
1013 return(ctx->stats.sess_accept);
1014 case SSL_CTRL_SESS_ACCEPT_GOOD:
1015 return(ctx->stats.sess_accept_good);
1016 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1017 return(ctx->stats.sess_accept_renegotiate);
1018 case SSL_CTRL_SESS_HIT:
1019 return(ctx->stats.sess_hit);
1020 case SSL_CTRL_SESS_CB_HIT:
1021 return(ctx->stats.sess_cb_hit);
1022 case SSL_CTRL_SESS_MISSES:
1023 return(ctx->stats.sess_miss);
1024 case SSL_CTRL_SESS_TIMEOUTS:
1025 return(ctx->stats.sess_timeout);
1026 case SSL_CTRL_SESS_CACHE_FULL:
1027 return(ctx->stats.sess_cache_full);
1028 case SSL_CTRL_OPTIONS:
1029 return(ctx->options|=larg);
1031 return(ctx->mode|=larg);
1033 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1037 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
1041 case SSL_CTRL_SET_MSG_CALLBACK:
1042 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1046 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1050 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1058 return((l > 0)?1:-1);
1061 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1062 const SSL_CIPHER * const *bp)
1066 l=(*ap)->id-(*bp)->id;
1070 return((l > 0)?1:-1);
1073 /** return a STACK of the ciphers available for the SSL and in order of
1075 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1079 if (s->cipher_list != NULL)
1081 return(s->cipher_list);
1083 else if ((s->ctx != NULL) &&
1084 (s->ctx->cipher_list != NULL))
1086 return(s->ctx->cipher_list);
1092 /** return a STACK of the ciphers available for the SSL and in order of
1094 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1098 if (s->cipher_list_by_id != NULL)
1100 return(s->cipher_list_by_id);
1102 else if ((s->ctx != NULL) &&
1103 (s->ctx->cipher_list_by_id != NULL))
1105 return(s->ctx->cipher_list_by_id);
1111 /** The old interface to get the same thing as SSL_get_ciphers() */
1112 const char *SSL_get_cipher_list(const SSL *s,int n)
1115 STACK_OF(SSL_CIPHER) *sk;
1117 if (s == NULL) return(NULL);
1118 sk=SSL_get_ciphers(s);
1119 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1121 c=sk_SSL_CIPHER_value(sk,n);
1122 if (c == NULL) return(NULL);
1126 /** specify the ciphers to be used by default by the SSL_CTX */
1127 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1129 STACK_OF(SSL_CIPHER) *sk;
1131 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1132 &ctx->cipher_list_by_id,str);
1134 return((sk == NULL)?0:1);
1137 /** specify the ciphers to be used by the SSL */
1138 int SSL_set_cipher_list(SSL *s,const char *str)
1140 STACK_OF(SSL_CIPHER) *sk;
1142 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1143 &s->cipher_list_by_id,str);
1145 return((sk == NULL)?0:1);
1148 /* works well for SSLv2, not so good for SSLv3 */
1149 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1153 STACK_OF(SSL_CIPHER) *sk;
1157 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1162 sk=s->session->ciphers;
1163 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1165 /* Decrement for either the ':' or a '\0' */
1167 c=sk_SSL_CIPHER_value(sk,i);
1168 for (cp=c->name; *cp; )
1184 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1189 #ifndef OPENSSL_NO_KRB5
1190 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1191 #endif /* OPENSSL_NO_KRB5 */
1193 if (sk == NULL) return(0);
1196 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1198 c=sk_SSL_CIPHER_value(sk,i);
1199 #ifndef OPENSSL_NO_KRB5
1200 if ((c->algorithms & SSL_KRB5) && nokrb5)
1202 #endif /* OPENSSL_NO_KRB5 */
1203 j=ssl_put_cipher_by_char(s,c,p);
1209 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1210 STACK_OF(SSL_CIPHER) **skp)
1213 STACK_OF(SSL_CIPHER) *sk;
1216 n=ssl_put_cipher_by_char(s,NULL,NULL);
1219 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1222 if ((skp == NULL) || (*skp == NULL))
1223 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1227 sk_SSL_CIPHER_zero(sk);
1230 for (i=0; i<num; i+=n)
1232 c=ssl_get_cipher_by_char(s,p);
1236 if (!sk_SSL_CIPHER_push(sk,c))
1238 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1248 if ((skp == NULL) || (*skp == NULL))
1249 sk_SSL_CIPHER_free(sk);
1253 unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1258 ((unsigned int) a->session_id[0] )|
1259 ((unsigned int) a->session_id[1]<< 8L)|
1260 ((unsigned long)a->session_id[2]<<16L)|
1261 ((unsigned long)a->session_id[3]<<24L);
1265 /* NB: If this function (or indeed the hash function which uses a sort of
1266 * coarser function than this one) is changed, ensure
1267 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1268 * able to construct an SSL_SESSION that will collide with any existing session
1269 * with a matching session ID. */
1270 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1272 if (a->ssl_version != b->ssl_version)
1274 if (a->session_id_length != b->session_id_length)
1276 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1279 /* These wrapper functions should remain rather than redeclaring
1280 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1281 * variable. The reason is that the functions aren't static, they're exposed via
1283 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1284 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1286 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1292 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1297 if (FIPS_mode() && (meth->version < TLS1_VERSION))
1299 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1304 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1306 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1309 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1313 memset(ret,0,sizeof(SSL_CTX));
1317 ret->cert_store=NULL;
1318 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1319 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1320 ret->session_cache_head=NULL;
1321 ret->session_cache_tail=NULL;
1323 /* We take the system default */
1324 ret->session_timeout=meth->get_timeout();
1326 ret->new_session_cb=0;
1327 ret->remove_session_cb=0;
1328 ret->get_session_cb=0;
1329 ret->generate_session_id=0;
1331 memset((char *)&ret->stats,0,sizeof(ret->stats));
1334 ret->quiet_shutdown=0;
1336 /* ret->cipher=NULL;*/
1337 /* ret->s2->challenge=NULL;
1338 ret->master_key=NULL;
1340 ret->s2->conn_id=NULL; */
1342 ret->info_callback=NULL;
1344 ret->app_verify_callback=0;
1345 ret->app_verify_arg=NULL;
1347 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1349 ret->msg_callback=0;
1350 ret->msg_callback_arg=NULL;
1351 ret->verify_mode=SSL_VERIFY_NONE;
1352 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1353 ret->sid_ctx_length=0;
1354 ret->default_verify_callback=NULL;
1355 if ((ret->cert=ssl_cert_new()) == NULL)
1358 ret->default_passwd_callback=0;
1359 ret->default_passwd_callback_userdata=NULL;
1360 ret->client_cert_cb=0;
1362 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1363 LHASH_COMP_FN(SSL_SESSION_cmp));
1364 if (ret->sessions == NULL) goto err;
1365 ret->cert_store=X509_STORE_new();
1366 if (ret->cert_store == NULL) goto err;
1368 ssl_create_cipher_list(ret->method,
1369 &ret->cipher_list,&ret->cipher_list_by_id,
1370 SSL_DEFAULT_CIPHER_LIST);
1371 if (ret->cipher_list == NULL
1372 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1374 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1378 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1380 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1383 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1385 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1388 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1390 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1394 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1397 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1399 ret->extra_certs=NULL;
1400 ret->comp_methods=SSL_COMP_get_compression_methods();
1404 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1406 if (ret != NULL) SSL_CTX_free(ret);
1411 static void SSL_COMP_free(SSL_COMP *comp)
1412 { OPENSSL_free(comp); }
1415 void SSL_CTX_free(SSL_CTX *a)
1419 if (a == NULL) return;
1421 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1423 REF_PRINT("SSL_CTX",a);
1429 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1435 * Free internal session cache. However: the remove_cb() may reference
1436 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1437 * after the sessions were flushed.
1438 * As the ex_data handling routines might also touch the session cache,
1439 * the most secure solution seems to be: empty (flush) the cache, then
1440 * free ex_data, then finally free the cache.
1441 * (See ticket [openssl.org #212].)
1443 if (a->sessions != NULL)
1444 SSL_CTX_flush_sessions(a,0);
1446 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1448 if (a->sessions != NULL)
1449 lh_free(a->sessions);
1451 if (a->cert_store != NULL)
1452 X509_STORE_free(a->cert_store);
1453 if (a->cipher_list != NULL)
1454 sk_SSL_CIPHER_free(a->cipher_list);
1455 if (a->cipher_list_by_id != NULL)
1456 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1457 if (a->cert != NULL)
1458 ssl_cert_free(a->cert);
1459 if (a->client_CA != NULL)
1460 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1461 if (a->extra_certs != NULL)
1462 sk_X509_pop_free(a->extra_certs,X509_free);
1463 #if 0 /* This should never be done, since it removes a global database */
1464 if (a->comp_methods != NULL)
1465 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1467 a->comp_methods = NULL;
1472 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1474 ctx->default_passwd_callback=cb;
1477 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1479 ctx->default_passwd_callback_userdata=u;
1482 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1484 ctx->app_verify_callback=cb;
1485 ctx->app_verify_arg=arg;
1488 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1490 ctx->verify_mode=mode;
1491 ctx->default_verify_callback=cb;
1494 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1496 ctx->verify_depth=depth;
1499 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1502 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1503 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1504 int rsa_tmp_export,dh_tmp_export,kl;
1505 unsigned long mask,emask;
1507 if (c == NULL) return;
1509 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1511 #ifndef OPENSSL_NO_RSA
1512 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1513 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1514 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1516 rsa_tmp=rsa_tmp_export=0;
1518 #ifndef OPENSSL_NO_DH
1519 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1520 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1521 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1523 dh_tmp=dh_tmp_export=0;
1526 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1527 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1528 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1529 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1530 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1531 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1532 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1533 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1534 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1535 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1536 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1537 /* FIX THIS EAY EAY EAY */
1538 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1539 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1545 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1546 rsa_tmp,rsa_tmp_export,dh_tmp,
1547 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1550 if (rsa_enc || (rsa_tmp && rsa_sign))
1552 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1556 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1557 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1558 (rsa_enc || rsa_sign || dsa_sign))
1560 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1561 (rsa_enc || rsa_sign || dsa_sign))
1571 if (dh_rsa) mask|=SSL_kDHr;
1572 if (dh_rsa_export) emask|=SSL_kDHr;
1574 if (dh_dsa) mask|=SSL_kDHd;
1575 if (dh_dsa_export) emask|=SSL_kDHd;
1577 if (rsa_enc || rsa_sign)
1592 #ifndef OPENSSL_NO_KRB5
1593 mask|=SSL_kKRB5|SSL_aKRB5;
1594 emask|=SSL_kKRB5|SSL_aKRB5;
1598 c->export_mask=emask;
1602 /* THIS NEEDS CLEANING UP */
1603 X509 *ssl_get_server_send_cert(SSL *s)
1605 unsigned long alg,mask,kalg;
1610 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1611 alg=s->s3->tmp.new_cipher->algorithms;
1612 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1613 mask=is_export?c->export_mask:c->mask;
1614 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1616 if (kalg & SSL_kDHr)
1618 else if (kalg & SSL_kDHd)
1620 else if (kalg & SSL_aDSS)
1621 i=SSL_PKEY_DSA_SIGN;
1622 else if (kalg & SSL_aRSA)
1624 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1625 i=SSL_PKEY_RSA_SIGN;
1629 else if (kalg & SSL_aKRB5)
1631 /* VRS something else here? */
1634 else /* if (kalg & SSL_aNULL) */
1636 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1639 if (c->pkeys[i].x509 == NULL) return(NULL);
1640 return(c->pkeys[i].x509);
1643 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1648 alg=cipher->algorithms;
1651 if ((alg & SSL_aDSS) &&
1652 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1653 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1654 else if (alg & SSL_aRSA)
1656 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1657 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1658 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1659 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1663 else /* if (alg & SSL_aNULL) */
1665 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1670 void ssl_update_cache(SSL *s,int mode)
1674 /* If the session_id_length is 0, we are not supposed to cache it,
1675 * and it would be rather hard to do anyway :-) */
1676 if (s->session->session_id_length == 0) return;
1678 i=s->ctx->session_cache_mode;
1679 if ((i & mode) && (!s->hit)
1680 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1681 || SSL_CTX_add_session(s->ctx,s->session))
1682 && (s->ctx->new_session_cb != NULL))
1684 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1685 if (!s->ctx->new_session_cb(s,s->session))
1686 SSL_SESSION_free(s->session);
1689 /* auto flush every 255 connections */
1690 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1691 ((i & mode) == mode))
1693 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1694 ?s->ctx->stats.sess_connect_good
1695 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1697 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1702 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1707 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1712 if (s->method != meth)
1714 if (s->handshake_func != NULL)
1715 conn=(s->handshake_func == s->method->ssl_connect);
1717 if (s->method->version == meth->version)
1721 s->method->ssl_free(s);
1723 ret=s->method->ssl_new(s);
1727 s->handshake_func=meth->ssl_connect;
1729 s->handshake_func=meth->ssl_accept;
1734 int SSL_get_error(const SSL *s,int i)
1740 if (i > 0) return(SSL_ERROR_NONE);
1742 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1743 * etc, where we do encode the error */
1744 if ((l=ERR_peek_error()) != 0)
1746 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1747 return(SSL_ERROR_SYSCALL);
1749 return(SSL_ERROR_SSL);
1752 if ((i < 0) && SSL_want_read(s))
1754 bio=SSL_get_rbio(s);
1755 if (BIO_should_read(bio))
1756 return(SSL_ERROR_WANT_READ);
1757 else if (BIO_should_write(bio))
1758 /* This one doesn't make too much sense ... We never try
1759 * to write to the rbio, and an application program where
1760 * rbio and wbio are separate couldn't even know what it
1762 * However if we ever set s->rwstate incorrectly
1763 * (so that we have SSL_want_read(s) instead of
1764 * SSL_want_write(s)) and rbio and wbio *are* the same,
1765 * this test works around that bug; so it might be safer
1767 return(SSL_ERROR_WANT_WRITE);
1768 else if (BIO_should_io_special(bio))
1770 reason=BIO_get_retry_reason(bio);
1771 if (reason == BIO_RR_CONNECT)
1772 return(SSL_ERROR_WANT_CONNECT);
1773 else if (reason == BIO_RR_ACCEPT)
1774 return(SSL_ERROR_WANT_ACCEPT);
1776 return(SSL_ERROR_SYSCALL); /* unknown */
1780 if ((i < 0) && SSL_want_write(s))
1782 bio=SSL_get_wbio(s);
1783 if (BIO_should_write(bio))
1784 return(SSL_ERROR_WANT_WRITE);
1785 else if (BIO_should_read(bio))
1786 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1787 return(SSL_ERROR_WANT_READ);
1788 else if (BIO_should_io_special(bio))
1790 reason=BIO_get_retry_reason(bio);
1791 if (reason == BIO_RR_CONNECT)
1792 return(SSL_ERROR_WANT_CONNECT);
1793 else if (reason == BIO_RR_ACCEPT)
1794 return(SSL_ERROR_WANT_ACCEPT);
1796 return(SSL_ERROR_SYSCALL);
1799 if ((i < 0) && SSL_want_x509_lookup(s))
1801 return(SSL_ERROR_WANT_X509_LOOKUP);
1806 if (s->version == SSL2_VERSION)
1808 /* assume it is the socket being closed */
1809 return(SSL_ERROR_ZERO_RETURN);
1813 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1814 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1815 return(SSL_ERROR_ZERO_RETURN);
1818 return(SSL_ERROR_SYSCALL);
1821 int SSL_do_handshake(SSL *s)
1825 if (s->handshake_func == NULL)
1827 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1831 s->method->ssl_renegotiate_check(s);
1833 if (SSL_in_init(s) || SSL_in_before(s))
1835 ret=s->handshake_func(s);
1840 /* For the next 2 functions, SSL_clear() sets shutdown and so
1841 * one of these calls will reset it */
1842 void SSL_set_accept_state(SSL *s)
1846 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1847 s->handshake_func=s->method->ssl_accept;
1848 /* clear the current cipher */
1849 ssl_clear_cipher_ctx(s);
1852 void SSL_set_connect_state(SSL *s)
1856 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1857 s->handshake_func=s->method->ssl_connect;
1858 /* clear the current cipher */
1859 ssl_clear_cipher_ctx(s);
1862 int ssl_undefined_function(SSL *s)
1864 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1868 int ssl_undefined_const_function(const SSL *s)
1870 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1874 SSL_METHOD *ssl_bad_method(int ver)
1876 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1880 const char *SSL_get_version(const SSL *s)
1882 if (s->version == TLS1_VERSION)
1884 else if (s->version == SSL3_VERSION)
1886 else if (s->version == SSL2_VERSION)
1892 SSL *SSL_dup(SSL *s)
1894 STACK_OF(X509_NAME) *sk;
1899 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1902 ret->version = s->version;
1903 ret->type = s->type;
1904 ret->method = s->method;
1906 if (s->session != NULL)
1908 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1909 SSL_copy_session_id(ret,s);
1913 /* No session has been established yet, so we have to expect
1914 * that s->cert or ret->cert will be changed later --
1915 * they should not both point to the same object,
1916 * and thus we can't use SSL_copy_session_id. */
1918 ret->method->ssl_free(ret);
1919 ret->method = s->method;
1920 ret->method->ssl_new(ret);
1922 if (s->cert != NULL)
1924 if (ret->cert != NULL)
1926 ssl_cert_free(ret->cert);
1928 ret->cert = ssl_cert_dup(s->cert);
1929 if (ret->cert == NULL)
1933 SSL_set_session_id_context(ret,
1934 s->sid_ctx, s->sid_ctx_length);
1937 ret->options=s->options;
1939 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
1940 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1941 ret->msg_callback = s->msg_callback;
1942 ret->msg_callback_arg = s->msg_callback_arg;
1943 SSL_set_verify(ret,SSL_get_verify_mode(s),
1944 SSL_get_verify_callback(s));
1945 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1946 ret->generate_session_id = s->generate_session_id;
1948 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1950 ret->debug=s->debug;
1952 /* copy app data, a little dangerous perhaps */
1953 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
1956 /* setup rbio, and wbio */
1957 if (s->rbio != NULL)
1959 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1962 if (s->wbio != NULL)
1964 if (s->wbio != s->rbio)
1966 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1970 ret->wbio=ret->rbio;
1972 ret->rwstate = s->rwstate;
1973 ret->in_handshake = s->in_handshake;
1974 ret->handshake_func = s->handshake_func;
1975 ret->server = s->server;
1976 ret->new_session = s->new_session;
1977 ret->quiet_shutdown = s->quiet_shutdown;
1978 ret->shutdown=s->shutdown;
1979 ret->state=s->state; /* SSL_dup does not really work at any state, though */
1980 ret->rstate=s->rstate;
1981 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
1983 ret->purpose=s->purpose;
1984 ret->trust=s->trust;
1986 /* dup the cipher_list and cipher_list_by_id stacks */
1987 if (s->cipher_list != NULL)
1989 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1992 if (s->cipher_list_by_id != NULL)
1993 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1997 /* Dup the client_CA list */
1998 if (s->client_CA != NULL)
2000 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2002 for (i=0; i<sk_X509_NAME_num(sk); i++)
2004 xn=sk_X509_NAME_value(sk,i);
2005 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2016 if (ret != NULL) SSL_free(ret);
2022 void ssl_clear_cipher_ctx(SSL *s)
2024 if (s->enc_read_ctx != NULL)
2026 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2027 OPENSSL_free(s->enc_read_ctx);
2028 s->enc_read_ctx=NULL;
2030 if (s->enc_write_ctx != NULL)
2032 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2033 OPENSSL_free(s->enc_write_ctx);
2034 s->enc_write_ctx=NULL;
2036 if (s->expand != NULL)
2038 COMP_CTX_free(s->expand);
2041 if (s->compress != NULL)
2043 COMP_CTX_free(s->compress);
2048 /* Fix this function so that it takes an optional type parameter */
2049 X509 *SSL_get_certificate(const SSL *s)
2051 if (s->cert != NULL)
2052 return(s->cert->key->x509);
2057 /* Fix this function so that it takes an optional type parameter */
2058 EVP_PKEY *SSL_get_privatekey(SSL *s)
2060 if (s->cert != NULL)
2061 return(s->cert->key->privatekey);
2066 SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2068 if ((s->session != NULL) && (s->session->cipher != NULL))
2069 return(s->session->cipher);
2073 int ssl_init_wbio_buffer(SSL *s,int push)
2077 if (s->bbio == NULL)
2079 bbio=BIO_new(BIO_f_buffer());
2080 if (bbio == NULL) return(0);
2086 if (s->bbio == s->wbio)
2087 s->wbio=BIO_pop(s->wbio);
2089 (void)BIO_reset(bbio);
2090 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2091 if (!BIO_set_read_buffer_size(bbio,1))
2093 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2098 if (s->wbio != bbio)
2099 s->wbio=BIO_push(bbio,s->wbio);
2103 if (s->wbio == bbio)
2104 s->wbio=BIO_pop(bbio);
2109 void ssl_free_wbio_buffer(SSL *s)
2111 if (s->bbio == NULL) return;
2113 if (s->bbio == s->wbio)
2115 /* remove buffering */
2116 s->wbio=BIO_pop(s->wbio);
2117 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2118 assert(s->wbio != NULL);
2125 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2127 ctx->quiet_shutdown=mode;
2130 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2132 return(ctx->quiet_shutdown);
2135 void SSL_set_quiet_shutdown(SSL *s,int mode)
2137 s->quiet_shutdown=mode;
2140 int SSL_get_quiet_shutdown(const SSL *s)
2142 return(s->quiet_shutdown);
2145 void SSL_set_shutdown(SSL *s,int mode)
2150 int SSL_get_shutdown(const SSL *s)
2152 return(s->shutdown);
2155 int SSL_version(const SSL *s)
2160 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2165 #ifndef OPENSSL_NO_STDIO
2166 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2168 return(X509_STORE_set_default_paths(ctx->cert_store));
2171 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2175 r=X509_STORE_load_locations(ctx->cert_store,CAfile,CApath);
2180 void SSL_set_info_callback(SSL *ssl,
2181 void (*cb)(const SSL *ssl,int type,int val))
2183 ssl->info_callback=cb;
2186 void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl,int type,int val)
2188 return ssl->info_callback;
2191 int SSL_state(const SSL *ssl)
2196 void SSL_set_verify_result(SSL *ssl,long arg)
2198 ssl->verify_result=arg;
2201 long SSL_get_verify_result(const SSL *ssl)
2203 return(ssl->verify_result);
2206 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2207 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2209 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2210 new_func, dup_func, free_func);
2213 int SSL_set_ex_data(SSL *s,int idx,void *arg)
2215 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2218 void *SSL_get_ex_data(const SSL *s,int idx)
2220 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2223 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2224 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2226 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2227 new_func, dup_func, free_func);
2230 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2232 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2235 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2237 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2245 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2247 return(ctx->cert_store);
2250 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2252 if (ctx->cert_store != NULL)
2253 X509_STORE_free(ctx->cert_store);
2254 ctx->cert_store=store;
2257 int SSL_want(const SSL *s)
2263 * \brief Set the callback for generating temporary RSA keys.
2264 * \param ctx the SSL context.
2265 * \param cb the callback
2268 #ifndef OPENSSL_NO_RSA
2269 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2273 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2276 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2280 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2286 * \brief The RSA temporary key callback function.
2287 * \param ssl the SSL session.
2288 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2289 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2290 * of the required key in bits.
2291 * \return the temporary RSA key.
2292 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2295 RSA *cb(SSL *ssl,int is_export,int keylength)
2300 * \brief Set the callback for generating temporary DH keys.
2301 * \param ctx the SSL context.
2302 * \param dh the callback
2305 #ifndef OPENSSL_NO_DH
2306 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2309 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2312 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2315 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2320 void SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
2322 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2324 void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
2326 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2331 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2332 #include "../crypto/bio/bss_file.c"
2335 IMPLEMENT_STACK_OF(SSL_CIPHER)
2336 IMPLEMENT_STACK_OF(SSL_COMP)