ssl_lib.c revision 72613
1296047Soshogbo/*! \file ssl/ssl_lib.c 2296047Soshogbo * \brief Version independent SSL functions. 3296047Soshogbo */ 4296047Soshogbo/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 5296047Soshogbo * All rights reserved. 6296047Soshogbo * 7296047Soshogbo * This package is an SSL implementation written 8296047Soshogbo * by Eric Young (eay@cryptsoft.com). 9296047Soshogbo * The implementation was written so as to conform with Netscapes SSL. 10296047Soshogbo * 11296047Soshogbo * This library is free for commercial and non-commercial use as long as 12296047Soshogbo * the following conditions are aheared to. The following conditions 13296047Soshogbo * apply to all code found in this distribution, be it the RC4, RSA, 14296047Soshogbo * lhash, DES, etc., code; not just the SSL code. The SSL documentation 15296047Soshogbo * included with this distribution is covered by the same copyright terms 16296047Soshogbo * except that the holder is Tim Hudson (tjh@cryptsoft.com). 17296047Soshogbo * 18296047Soshogbo * Copyright remains Eric Young's, and as such any Copyright notices in 19296047Soshogbo * the code are not to be removed. 20296047Soshogbo * If this package is used in a product, Eric Young should be given attribution 21296047Soshogbo * as the author of the parts of the library used. 22296047Soshogbo * This can be in the form of a textual message at program startup or 23296047Soshogbo * in documentation (online or textual) provided with the package. 24296047Soshogbo * 25296047Soshogbo * Redistribution and use in source and binary forms, with or without 26296047Soshogbo * modification, are permitted provided that the following conditions 27296047Soshogbo * are met: 28296047Soshogbo * 1. Redistributions of source code must retain the copyright 29296047Soshogbo * notice, this list of conditions and the following disclaimer. 30296047Soshogbo * 2. Redistributions in binary form must reproduce the above copyright 31296047Soshogbo * notice, this list of conditions and the following disclaimer in the 32296047Soshogbo * documentation and/or other materials provided with the distribution. 33296047Soshogbo * 3. All advertising materials mentioning features or use of this software 34296047Soshogbo * must display the following acknowledgement: 35296047Soshogbo * "This product includes cryptographic software written by 36296047Soshogbo * Eric Young (eay@cryptsoft.com)" 37296047Soshogbo * The word 'cryptographic' can be left out if the rouines from the library 38296047Soshogbo * being used are not cryptographic related :-). 39296047Soshogbo * 4. If you include any Windows specific code (or a derivative thereof) from 40296047Soshogbo * the apps directory (application code) you must include an acknowledgement: 41296047Soshogbo * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 42296047Soshogbo * 43296047Soshogbo * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 44296047Soshogbo * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45296047Soshogbo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46296047Soshogbo * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 47296047Soshogbo * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48296047Soshogbo * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49296047Soshogbo * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50296047Soshogbo * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51296047Soshogbo * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52296047Soshogbo * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53296047Soshogbo * SUCH DAMAGE. 54296047Soshogbo * 55296047Soshogbo * The licence and distribution terms for any publically available version or 56296047Soshogbo * derivative of this code cannot be changed. i.e. this code cannot simply be 57296047Soshogbo * copied and put under another distribution licence 58296047Soshogbo * [including the GNU Public Licence.] 59296047Soshogbo */ 60296047Soshogbo 61296047Soshogbo 62296047Soshogbo#include <assert.h> 63296047Soshogbo#include <stdio.h> 64296047Soshogbo#include <openssl/objects.h> 65296047Soshogbo#include <openssl/lhash.h> 66296047Soshogbo#include <openssl/x509v3.h> 67296047Soshogbo#include "ssl_locl.h" 68296047Soshogbo 69296047Soshogboconst char *SSL_version_str=OPENSSL_VERSION_TEXT; 70296047Soshogbo 71296047Soshogbostatic STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL; 72296047Soshogbostatic STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL; 73296047Soshogbostatic int ssl_meth_num=0; 74296047Soshogbostatic int ssl_ctx_meth_num=0; 75296047Soshogbo 76296047SoshogboOPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={ 77296047Soshogbo /* evil casts, but these functions are only called if there's a library bug */ 78296047Soshogbo (int (*)(SSL *,int))ssl_undefined_function, 79296047Soshogbo (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 80296047Soshogbo ssl_undefined_function, 81296047Soshogbo (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 82296047Soshogbo (int (*)(SSL*, int))ssl_undefined_function, 83296047Soshogbo (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function 84296047Soshogbo }; 85296047Soshogbo 86296047Soshogboint SSL_clear(SSL *s) 87296047Soshogbo { 88296047Soshogbo int state; 89296047Soshogbo 90296047Soshogbo if (s->method == NULL) 91296047Soshogbo { 92296047Soshogbo SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 93296047Soshogbo return(0); 94296047Soshogbo } 95296047Soshogbo 96296047Soshogbo s->error=0; 97296047Soshogbo s->hit=0; 98296047Soshogbo s->shutdown=0; 99296047Soshogbo 100296047Soshogbo#if 0 /* Disabled since version 1.10 of this file (early return not 101296047Soshogbo * needed because SSL_clear is not called when doing renegotiation) */ 102296047Soshogbo /* This is set if we are doing dynamic renegotiation so keep 103296047Soshogbo * the old cipher. It is sort of a SSL_clear_lite :-) */ 104296047Soshogbo if (s->new_session) return(1); 105296047Soshogbo#else 106296047Soshogbo if (s->new_session) 107296047Soshogbo { 108296047Soshogbo SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR); 109296047Soshogbo return 0; 110296047Soshogbo } 111296047Soshogbo#endif 112296047Soshogbo 113296047Soshogbo state=s->state; /* Keep to check if we throw away the session-id */ 114296047Soshogbo s->type=0; 115296047Soshogbo 116296047Soshogbo s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 117296047Soshogbo 118296047Soshogbo s->version=s->method->version; 119296047Soshogbo s->client_version=s->version; 120296047Soshogbo s->rwstate=SSL_NOTHING; 121296047Soshogbo s->rstate=SSL_ST_READ_HEADER; 122296047Soshogbo#if 0 123296047Soshogbo s->read_ahead=s->ctx->read_ahead; 124296047Soshogbo#endif 125296047Soshogbo 126296047Soshogbo if (s->init_buf != NULL) 127296047Soshogbo { 128296047Soshogbo BUF_MEM_free(s->init_buf); 129296047Soshogbo s->init_buf=NULL; 130296047Soshogbo } 131296047Soshogbo 132296047Soshogbo ssl_clear_cipher_ctx(s); 133296047Soshogbo 134296047Soshogbo if (ssl_clear_bad_session(s)) 135296047Soshogbo { 136296047Soshogbo SSL_SESSION_free(s->session); 137296047Soshogbo s->session=NULL; 138296047Soshogbo } 139296047Soshogbo 140296047Soshogbo s->first_packet=0; 141296047Soshogbo 142296047Soshogbo#if 1 143296047Soshogbo /* Check to see if we were changed into a different method, if 144296047Soshogbo * so, revert back if we are not doing session-id reuse. */ 145296047Soshogbo if ((s->session == NULL) && (s->method != s->ctx->method)) 146296047Soshogbo { 147296047Soshogbo s->method->ssl_free(s); 148296047Soshogbo s->method=s->ctx->method; 149296047Soshogbo if (!s->method->ssl_new(s)) 150296047Soshogbo return(0); 151296047Soshogbo } 152296047Soshogbo else 153296047Soshogbo#endif 154296047Soshogbo s->method->ssl_clear(s); 155296047Soshogbo return(1); 156296047Soshogbo } 157296047Soshogbo 158296047Soshogbo/** Used to change an SSL_CTXs default SSL method type */ 159296047Soshogboint SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 160296047Soshogbo { 161296047Soshogbo STACK_OF(SSL_CIPHER) *sk; 162296047Soshogbo 163296047Soshogbo ctx->method=meth; 164296047Soshogbo 165296047Soshogbo sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 166296047Soshogbo &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 167296047Soshogbo if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 168296047Soshogbo { 169296047Soshogbo SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 170296047Soshogbo return(0); 171296047Soshogbo } 172296047Soshogbo return(1); 173296047Soshogbo } 174296047Soshogbo 175296047SoshogboSSL *SSL_new(SSL_CTX *ctx) 176296047Soshogbo { 177296047Soshogbo SSL *s; 178296047Soshogbo 179296047Soshogbo if (ctx == NULL) 180296047Soshogbo { 181296047Soshogbo SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 182296047Soshogbo return(NULL); 183296047Soshogbo } 184296047Soshogbo if (ctx->method == NULL) 185296047Soshogbo { 186296047Soshogbo SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 187296047Soshogbo return(NULL); 188296047Soshogbo } 189296047Soshogbo 190296047Soshogbo s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 191296047Soshogbo if (s == NULL) goto err; 192296047Soshogbo memset(s,0,sizeof(SSL)); 193296047Soshogbo 194296047Soshogbo if (ctx->cert != NULL) 195296047Soshogbo { 196296047Soshogbo /* Earlier library versions used to copy the pointer to 197296047Soshogbo * the CERT, not its contents; only when setting new 198296047Soshogbo * parameters for the per-SSL copy, ssl_cert_new would be 199296047Soshogbo * called (and the direct reference to the per-SSL_CTX 200296047Soshogbo * settings would be lost, but those still were indirectly 201296047Soshogbo * accessed for various purposes, and for that reason they 202296047Soshogbo * used to be known as s->ctx->default_cert). 203296047Soshogbo * Now we don't look at the SSL_CTX's CERT after having 204296047Soshogbo * duplicated it once. */ 205296047Soshogbo 206296047Soshogbo s->cert = ssl_cert_dup(ctx->cert); 207296047Soshogbo if (s->cert == NULL) 208296047Soshogbo goto err; 209296047Soshogbo } 210296047Soshogbo else 211296047Soshogbo s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 212296047Soshogbo s->sid_ctx_length=ctx->sid_ctx_length; 213296047Soshogbo memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 214296047Soshogbo s->verify_mode=ctx->verify_mode; 215296047Soshogbo s->verify_depth=ctx->verify_depth; 216296047Soshogbo s->verify_callback=ctx->default_verify_callback; 217296047Soshogbo s->purpose = ctx->purpose; 218296047Soshogbo s->trust = ctx->trust; 219296047Soshogbo CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 220296047Soshogbo s->ctx=ctx; 221296047Soshogbo 222296047Soshogbo s->verify_result=X509_V_OK; 223296047Soshogbo 224296047Soshogbo s->method=ctx->method; 225296047Soshogbo 226296047Soshogbo if (!s->method->ssl_new(s)) 227296047Soshogbo goto err; 228296047Soshogbo 229296047Soshogbo s->quiet_shutdown=ctx->quiet_shutdown; 230296047Soshogbo s->references=1; 231296047Soshogbo s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 232296047Soshogbo s->options=ctx->options; 233296047Soshogbo s->mode=ctx->mode; 234296047Soshogbo s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */ 235296047Soshogbo SSL_clear(s); 236296047Soshogbo 237296047Soshogbo CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data); 238296047Soshogbo 239296047Soshogbo return(s); 240296047Soshogboerr: 241296047Soshogbo if (s != NULL) 242296047Soshogbo { 243296047Soshogbo if (s->cert != NULL) 244296047Soshogbo ssl_cert_free(s->cert); 245296047Soshogbo if (s->ctx != NULL) 246296047Soshogbo SSL_CTX_free(s->ctx); /* decrement reference count */ 247296047Soshogbo OPENSSL_free(s); 248296047Soshogbo } 249296047Soshogbo SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 250296047Soshogbo return(NULL); 251296047Soshogbo } 252296047Soshogbo 253296047Soshogboint SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 254296047Soshogbo unsigned int sid_ctx_len) 255296047Soshogbo { 256296047Soshogbo if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 257296047Soshogbo { 258296047Soshogbo SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 259296047Soshogbo return 0; 260296047Soshogbo } 261296047Soshogbo ctx->sid_ctx_length=sid_ctx_len; 262296047Soshogbo memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 263296047Soshogbo 264296047Soshogbo return 1; 265296047Soshogbo } 266296047Soshogbo 267296047Soshogboint SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 268296047Soshogbo unsigned int sid_ctx_len) 269296047Soshogbo { 270296047Soshogbo if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 271296047Soshogbo { 272296047Soshogbo SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 273296047Soshogbo return 0; 274296047Soshogbo } 275296047Soshogbo ssl->sid_ctx_length=sid_ctx_len; 276296047Soshogbo memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 277296047Soshogbo 278296047Soshogbo return 1; 279296047Soshogbo } 280296047Soshogbo 281296047Soshogboint SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 282296047Soshogbo{ 283296047Soshogbo if(X509_PURPOSE_get_by_id(purpose) == -1) { 284296047Soshogbo SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 285296047Soshogbo return 0; 286296047Soshogbo } 287296047Soshogbo s->purpose = purpose; 288296047Soshogbo return 1; 289296047Soshogbo} 290296047Soshogbo 291296047Soshogboint SSL_set_purpose(SSL *s, int purpose) 292296047Soshogbo{ 293296047Soshogbo if(X509_PURPOSE_get_by_id(purpose) == -1) { 294296047Soshogbo SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 295296047Soshogbo return 0; 296296047Soshogbo } 297296047Soshogbo s->purpose = purpose; 298296047Soshogbo return 1; 299296047Soshogbo} 300296047Soshogbo 301296047Soshogboint SSL_CTX_set_trust(SSL_CTX *s, int trust) 302296047Soshogbo{ 303296047Soshogbo if(X509_TRUST_get_by_id(trust) == -1) { 304296047Soshogbo SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST); 305296047Soshogbo return 0; 306296047Soshogbo } 307296047Soshogbo s->trust = trust; 308296047Soshogbo return 1; 309296047Soshogbo} 310296047Soshogbo 311296047Soshogboint SSL_set_trust(SSL *s, int trust) 312296047Soshogbo{ 313296047Soshogbo if(X509_TRUST_get_by_id(trust) == -1) { 314296047Soshogbo SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST); 315296047Soshogbo return 0; 316296047Soshogbo } 317296047Soshogbo s->trust = trust; 318296047Soshogbo return 1; 319296047Soshogbo} 320296047Soshogbo 321296047Soshogbovoid SSL_free(SSL *s) 322296047Soshogbo { 323296047Soshogbo int i; 324296047Soshogbo 325296047Soshogbo if(s == NULL) 326296047Soshogbo return; 327296047Soshogbo 328296047Soshogbo i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 329296047Soshogbo#ifdef REF_PRINT 330296047Soshogbo REF_PRINT("SSL",s); 331296047Soshogbo#endif 332296047Soshogbo if (i > 0) return; 333296047Soshogbo#ifdef REF_CHECK 334296047Soshogbo if (i < 0) 335296047Soshogbo { 336296047Soshogbo fprintf(stderr,"SSL_free, bad reference count\n"); 337296047Soshogbo abort(); /* ok */ 338296047Soshogbo } 339296047Soshogbo#endif 340296047Soshogbo 341296047Soshogbo CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data); 342296047Soshogbo 343296047Soshogbo if (s->bbio != NULL) 344296047Soshogbo { 345296047Soshogbo /* If the buffering BIO is in place, pop it off */ 346296047Soshogbo if (s->bbio == s->wbio) 347296047Soshogbo { 348296047Soshogbo s->wbio=BIO_pop(s->wbio); 349296047Soshogbo } 350296047Soshogbo BIO_free(s->bbio); 351296047Soshogbo s->bbio=NULL; 352296047Soshogbo } 353296047Soshogbo if (s->rbio != NULL) 354296047Soshogbo BIO_free_all(s->rbio); 355296047Soshogbo if ((s->wbio != NULL) && (s->wbio != s->rbio)) 356296047Soshogbo BIO_free_all(s->wbio); 357296047Soshogbo 358296047Soshogbo if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 359296047Soshogbo 360296047Soshogbo /* add extra stuff */ 361296047Soshogbo if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 362296047Soshogbo if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 363296047Soshogbo 364296047Soshogbo /* Make the next call work :-) */ 365296047Soshogbo if (s->session != NULL) 366296047Soshogbo { 367296047Soshogbo ssl_clear_bad_session(s); 368296047Soshogbo SSL_SESSION_free(s->session); 369296047Soshogbo } 370296047Soshogbo 371296047Soshogbo ssl_clear_cipher_ctx(s); 372296047Soshogbo 373296047Soshogbo if (s->cert != NULL) ssl_cert_free(s->cert); 374296047Soshogbo /* Free up if allocated */ 375296047Soshogbo 376296047Soshogbo if (s->ctx) SSL_CTX_free(s->ctx); 377296047Soshogbo 378296047Soshogbo if (s->client_CA != NULL) 379296047Soshogbo sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 380296047Soshogbo 381296047Soshogbo if (s->method != NULL) s->method->ssl_free(s); 382296047Soshogbo 383296047Soshogbo OPENSSL_free(s); 384296047Soshogbo } 385296047Soshogbo 386296047Soshogbovoid SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 387296047Soshogbo { 388296047Soshogbo /* If the output buffering BIO is still in place, remove it 389296047Soshogbo */ 390296047Soshogbo if (s->bbio != NULL) 391296047Soshogbo { 392296047Soshogbo if (s->wbio == s->bbio) 393296047Soshogbo { 394296047Soshogbo s->wbio=s->wbio->next_bio; 395296047Soshogbo s->bbio->next_bio=NULL; 396296047Soshogbo } 397296047Soshogbo } 398296047Soshogbo if ((s->rbio != NULL) && (s->rbio != rbio)) 399296047Soshogbo BIO_free_all(s->rbio); 400296047Soshogbo if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 401296047Soshogbo BIO_free_all(s->wbio); 402296047Soshogbo s->rbio=rbio; 403296047Soshogbo s->wbio=wbio; 404296047Soshogbo } 405296047Soshogbo 406296047SoshogboBIO *SSL_get_rbio(SSL *s) 407296047Soshogbo { return(s->rbio); } 408296047Soshogbo 409296047SoshogboBIO *SSL_get_wbio(SSL *s) 410296047Soshogbo { return(s->wbio); } 411296047Soshogbo 412296047Soshogboint SSL_get_fd(SSL *s) 413296047Soshogbo { 414296047Soshogbo int ret= -1; 415296047Soshogbo BIO *b,*r; 416296047Soshogbo 417296047Soshogbo b=SSL_get_rbio(s); 418296047Soshogbo r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 419296047Soshogbo if (r != NULL) 420296047Soshogbo BIO_get_fd(r,&ret); 421296047Soshogbo return(ret); 422296047Soshogbo } 423296047Soshogbo 424296047Soshogbo#ifndef NO_SOCK 425296047Soshogboint SSL_set_fd(SSL *s,int fd) 426296047Soshogbo { 427296047Soshogbo int ret=0; 428296047Soshogbo BIO *bio=NULL; 429296047Soshogbo 430296047Soshogbo bio=BIO_new(BIO_s_socket()); 431296047Soshogbo 432296047Soshogbo if (bio == NULL) 433296047Soshogbo { 434296047Soshogbo SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 435296047Soshogbo goto err; 436296047Soshogbo } 437296047Soshogbo BIO_set_fd(bio,fd,BIO_NOCLOSE); 438296047Soshogbo SSL_set_bio(s,bio,bio); 439296047Soshogbo ret=1; 440296047Soshogboerr: 441296047Soshogbo return(ret); 442296047Soshogbo } 443296047Soshogbo 444296047Soshogboint SSL_set_wfd(SSL *s,int fd) 445296047Soshogbo { 446296047Soshogbo int ret=0; 447296047Soshogbo BIO *bio=NULL; 448296047Soshogbo 449296047Soshogbo if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 450296047Soshogbo || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 451296047Soshogbo { 452296047Soshogbo bio=BIO_new(BIO_s_socket()); 453296047Soshogbo 454296047Soshogbo if (bio == NULL) 455296047Soshogbo { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 456296047Soshogbo BIO_set_fd(bio,fd,BIO_NOCLOSE); 457296047Soshogbo SSL_set_bio(s,SSL_get_rbio(s),bio); 458296047Soshogbo } 459296047Soshogbo else 460296047Soshogbo SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 461296047Soshogbo ret=1; 462296047Soshogboerr: 463296047Soshogbo return(ret); 464296047Soshogbo } 465296047Soshogbo 466296047Soshogboint SSL_set_rfd(SSL *s,int fd) 467296047Soshogbo { 468296047Soshogbo int ret=0; 469296047Soshogbo BIO *bio=NULL; 470296047Soshogbo 471296047Soshogbo if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 472296047Soshogbo || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 473296047Soshogbo { 474296047Soshogbo bio=BIO_new(BIO_s_socket()); 475296047Soshogbo 476296047Soshogbo if (bio == NULL) 477296047Soshogbo { 478296047Soshogbo SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 479296047Soshogbo goto err; 480296047Soshogbo } 481296047Soshogbo BIO_set_fd(bio,fd,BIO_NOCLOSE); 482296047Soshogbo SSL_set_bio(s,bio,SSL_get_wbio(s)); 483296047Soshogbo } 484296047Soshogbo else 485296047Soshogbo SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 486296047Soshogbo ret=1; 487296047Soshogboerr: 488296047Soshogbo return(ret); 489296047Soshogbo } 490296047Soshogbo#endif 491296047Soshogbo 492296047Soshogbo 493296047Soshogbo/* return length of latest Finished message we sent, copy to 'buf' */ 494296047Soshogbosize_t SSL_get_finished(SSL *s, void *buf, size_t count) 495296047Soshogbo { 496296047Soshogbo size_t ret = 0; 497296047Soshogbo 498296047Soshogbo if (s->s3 != NULL) 499296047Soshogbo { 500296047Soshogbo ret = s->s3->tmp.finish_md_len; 501296047Soshogbo if (count > ret) 502296047Soshogbo count = ret; 503296047Soshogbo memcpy(buf, s->s3->tmp.finish_md, count); 504296047Soshogbo } 505296047Soshogbo return ret; 506296047Soshogbo } 507296047Soshogbo 508296047Soshogbo/* return length of latest Finished message we expected, copy to 'buf' */ 509296047Soshogbosize_t SSL_get_peer_finished(SSL *s, void *buf, size_t count) 510296047Soshogbo { 511296047Soshogbo size_t ret = 0; 512296047Soshogbo 513296047Soshogbo if (s->s3 != NULL) 514296047Soshogbo { 515296047Soshogbo ret = s->s3->tmp.peer_finish_md_len; 516296047Soshogbo if (count > ret) 517296047Soshogbo count = ret; 518296047Soshogbo memcpy(buf, s->s3->tmp.peer_finish_md, count); 519296047Soshogbo } 520296047Soshogbo return ret; 521296047Soshogbo } 522296047Soshogbo 523296047Soshogbo 524296047Soshogboint SSL_get_verify_mode(SSL *s) 525296047Soshogbo { 526296047Soshogbo return(s->verify_mode); 527296047Soshogbo } 528296047Soshogbo 529296047Soshogboint SSL_get_verify_depth(SSL *s) 530296047Soshogbo { 531296047Soshogbo return(s->verify_depth); 532296047Soshogbo } 533296047Soshogbo 534296047Soshogboint (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *) 535296047Soshogbo { 536296047Soshogbo return(s->verify_callback); 537296047Soshogbo } 538296047Soshogbo 539296047Soshogboint SSL_CTX_get_verify_mode(SSL_CTX *ctx) 540296047Soshogbo { 541296047Soshogbo return(ctx->verify_mode); 542296047Soshogbo } 543296047Soshogbo 544296047Soshogboint SSL_CTX_get_verify_depth(SSL_CTX *ctx) 545296047Soshogbo { 546296047Soshogbo return(ctx->verify_depth); 547296047Soshogbo } 548296047Soshogbo 549296047Soshogboint (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *) 550296047Soshogbo { 551296047Soshogbo return(ctx->default_verify_callback); 552296047Soshogbo } 553296047Soshogbo 554296047Soshogbovoid SSL_set_verify(SSL *s,int mode, 555296047Soshogbo int (*callback)(int ok,X509_STORE_CTX *ctx)) 556296047Soshogbo { 557296047Soshogbo s->verify_mode=mode; 558296047Soshogbo if (callback != NULL) 559296047Soshogbo s->verify_callback=callback; 560296047Soshogbo } 561296047Soshogbo 562296047Soshogbovoid SSL_set_verify_depth(SSL *s,int depth) 563296047Soshogbo { 564296047Soshogbo s->verify_depth=depth; 565296047Soshogbo } 566296047Soshogbo 567296047Soshogbovoid SSL_set_read_ahead(SSL *s,int yes) 568296047Soshogbo { 569296047Soshogbo s->read_ahead=yes; 570296047Soshogbo } 571296047Soshogbo 572296047Soshogboint SSL_get_read_ahead(SSL *s) 573296047Soshogbo { 574296047Soshogbo return(s->read_ahead); 575296047Soshogbo } 576296047Soshogbo 577296047Soshogboint SSL_pending(SSL *s) 578296047Soshogbo { 579296047Soshogbo return(s->method->ssl_pending(s)); 580296047Soshogbo } 581296047Soshogbo 582296047SoshogboX509 *SSL_get_peer_certificate(SSL *s) 583296047Soshogbo { 584296047Soshogbo X509 *r; 585296047Soshogbo 586296047Soshogbo if ((s == NULL) || (s->session == NULL)) 587296047Soshogbo r=NULL; 588296047Soshogbo else 589296047Soshogbo r=s->session->peer; 590296047Soshogbo 591296047Soshogbo if (r == NULL) return(r); 592296047Soshogbo 593296047Soshogbo CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 594296047Soshogbo 595296047Soshogbo return(r); 596296047Soshogbo } 597296047Soshogbo 598296047SoshogboSTACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s) 599296047Soshogbo { 600296047Soshogbo STACK_OF(X509) *r; 601296047Soshogbo 602296047Soshogbo if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 603296047Soshogbo r=NULL; 604296047Soshogbo else 605296047Soshogbo r=s->session->sess_cert->cert_chain; 606296047Soshogbo 607296047Soshogbo /* If we are a client, cert_chain includes the peer's own 608296047Soshogbo * certificate; if we are a server, it does not. */ 609296047Soshogbo 610296047Soshogbo return(r); 611296047Soshogbo } 612296047Soshogbo 613296047Soshogbo/* Now in theory, since the calling process own 't' it should be safe to 614296047Soshogbo * modify. We need to be able to read f without being hassled */ 615296047Soshogbovoid SSL_copy_session_id(SSL *t,SSL *f) 616296047Soshogbo { 617296047Soshogbo CERT *tmp; 618296047Soshogbo 619296047Soshogbo /* Do we need to to SSL locking? */ 620296047Soshogbo SSL_set_session(t,SSL_get_session(f)); 621296047Soshogbo 622296047Soshogbo /* what if we are setup as SSLv2 but want to talk SSLv3 or 623296047Soshogbo * vice-versa */ 624296047Soshogbo if (t->method != f->method) 625296047Soshogbo { 626296047Soshogbo t->method->ssl_free(t); /* cleanup current */ 627296047Soshogbo t->method=f->method; /* change method */ 628296047Soshogbo t->method->ssl_new(t); /* setup new */ 629296047Soshogbo } 630296047Soshogbo 631296047Soshogbo tmp=t->cert; 632296047Soshogbo if (f->cert != NULL) 633296047Soshogbo { 634296047Soshogbo CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 635297982Soshogbo t->cert=f->cert; 636296047Soshogbo } 637296047Soshogbo else 638296047Soshogbo t->cert=NULL; 639296047Soshogbo if (tmp != NULL) ssl_cert_free(tmp); 640296047Soshogbo SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 641296047Soshogbo } 642296047Soshogbo 643296047Soshogbo/* Fix this so it checks all the valid key/cert options */ 644296047Soshogboint SSL_CTX_check_private_key(SSL_CTX *ctx) 645296047Soshogbo { 646296047Soshogbo if ( (ctx == NULL) || 647296047Soshogbo (ctx->cert == NULL) || 648296047Soshogbo (ctx->cert->key->x509 == NULL)) 649296047Soshogbo { 650296047Soshogbo SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 651296047Soshogbo return(0); 652296047Soshogbo } 653296047Soshogbo if (ctx->cert->key->privatekey == NULL) 654296047Soshogbo { 655296047Soshogbo SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 656296047Soshogbo return(0); 657296047Soshogbo } 658296047Soshogbo return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 659296047Soshogbo } 660296047Soshogbo 661296047Soshogbo/* Fix this function so that it takes an optional type parameter */ 662296047Soshogboint SSL_check_private_key(SSL *ssl) 663296047Soshogbo { 664296047Soshogbo if (ssl == NULL) 665296047Soshogbo { 666296047Soshogbo SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 667296047Soshogbo return(0); 668296047Soshogbo } 669296047Soshogbo if (ssl->cert == NULL) 670296047Soshogbo { 671296047Soshogbo SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 672296047Soshogbo return 0; 673296047Soshogbo } 674296047Soshogbo if (ssl->cert->key->x509 == NULL) 675296047Soshogbo { 676296047Soshogbo SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 677296047Soshogbo return(0); 678296047Soshogbo } 679296047Soshogbo if (ssl->cert->key->privatekey == NULL) 680296047Soshogbo { 681296047Soshogbo SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 682296047Soshogbo return(0); 683296047Soshogbo } 684296047Soshogbo return(X509_check_private_key(ssl->cert->key->x509, 685296047Soshogbo ssl->cert->key->privatekey)); 686296047Soshogbo } 687296047Soshogbo 688296047Soshogboint SSL_accept(SSL *s) 689296047Soshogbo { 690296047Soshogbo if (s->handshake_func == 0) 691296047Soshogbo /* Not properly initialized yet */ 692296047Soshogbo SSL_set_accept_state(s); 693296047Soshogbo 694296047Soshogbo return(s->method->ssl_accept(s)); 695296047Soshogbo } 696296047Soshogbo 697296047Soshogboint SSL_connect(SSL *s) 698296047Soshogbo { 699296047Soshogbo if (s->handshake_func == 0) 700296047Soshogbo /* Not properly initialized yet */ 701296047Soshogbo SSL_set_connect_state(s); 702296047Soshogbo 703296047Soshogbo return(s->method->ssl_connect(s)); 704296047Soshogbo } 705296047Soshogbo 706296047Soshogbolong SSL_get_default_timeout(SSL *s) 707296047Soshogbo { 708296047Soshogbo return(s->method->get_timeout()); 709296047Soshogbo } 710296047Soshogbo 711296047Soshogboint SSL_read(SSL *s,char *buf,int num) 712296047Soshogbo { 713296047Soshogbo if (s->handshake_func == 0) 714296047Soshogbo { 715296047Soshogbo SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 716296047Soshogbo return -1; 717296047Soshogbo } 718296047Soshogbo 719296047Soshogbo if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 720296047Soshogbo { 721296047Soshogbo s->rwstate=SSL_NOTHING; 722296047Soshogbo return(0); 723296047Soshogbo } 724296047Soshogbo return(s->method->ssl_read(s,buf,num)); 725296047Soshogbo } 726296047Soshogbo 727296047Soshogboint SSL_peek(SSL *s,char *buf,int num) 728296047Soshogbo { 729296047Soshogbo if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 730296047Soshogbo { 731296047Soshogbo return(0); 732296047Soshogbo } 733296047Soshogbo return(s->method->ssl_peek(s,buf,num)); 734296047Soshogbo } 735296047Soshogbo 736296047Soshogboint SSL_write(SSL *s,const char *buf,int num) 737296047Soshogbo { 738296047Soshogbo if (s->handshake_func == 0) 739296047Soshogbo { 740296047Soshogbo SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 741296047Soshogbo return -1; 742296047Soshogbo } 743296047Soshogbo 744296047Soshogbo if (s->shutdown & SSL_SENT_SHUTDOWN) 745296047Soshogbo { 746296047Soshogbo s->rwstate=SSL_NOTHING; 747296047Soshogbo SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 748296047Soshogbo return(-1); 749296047Soshogbo } 750296047Soshogbo return(s->method->ssl_write(s,buf,num)); 751296047Soshogbo } 752296047Soshogbo 753296047Soshogboint SSL_shutdown(SSL *s) 754296047Soshogbo { 755296047Soshogbo /* Note that this function behaves differently from what one might 756296047Soshogbo * expect. Return values are 0 for no success (yet), 757296047Soshogbo * 1 for success; but calling it once is usually not enough, 758296047Soshogbo * even if blocking I/O is used (see ssl3_shutdown). 759296047Soshogbo */ 760296047Soshogbo 761296047Soshogbo if (s->handshake_func == 0) 762301572Soshogbo { 763 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 764 return -1; 765 } 766 767 if ((s != NULL) && !SSL_in_init(s)) 768 return(s->method->ssl_shutdown(s)); 769 else 770 return(1); 771 } 772 773int SSL_renegotiate(SSL *s) 774 { 775 s->new_session=1; 776 return(s->method->ssl_renegotiate(s)); 777 } 778 779long SSL_ctrl(SSL *s,int cmd,long larg,char *parg) 780 { 781 long l; 782 783 switch (cmd) 784 { 785 case SSL_CTRL_GET_READ_AHEAD: 786 return(s->read_ahead); 787 case SSL_CTRL_SET_READ_AHEAD: 788 l=s->read_ahead; 789 s->read_ahead=larg; 790 return(l); 791 case SSL_CTRL_OPTIONS: 792 return(s->options|=larg); 793 case SSL_CTRL_MODE: 794 return(s->mode|=larg); 795 default: 796 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 797 } 798 } 799 800long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)()) 801 { 802 switch(cmd) 803 { 804 default: 805 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 806 } 807 } 808 809struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 810 { 811 return ctx->sessions; 812 } 813 814long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg) 815 { 816 long l; 817 818 switch (cmd) 819 { 820 case SSL_CTRL_GET_READ_AHEAD: 821 return(ctx->read_ahead); 822 case SSL_CTRL_SET_READ_AHEAD: 823 l=ctx->read_ahead; 824 ctx->read_ahead=larg; 825 return(l); 826 827 case SSL_CTRL_SET_SESS_CACHE_SIZE: 828 l=ctx->session_cache_size; 829 ctx->session_cache_size=larg; 830 return(l); 831 case SSL_CTRL_GET_SESS_CACHE_SIZE: 832 return(ctx->session_cache_size); 833 case SSL_CTRL_SET_SESS_CACHE_MODE: 834 l=ctx->session_cache_mode; 835 ctx->session_cache_mode=larg; 836 return(l); 837 case SSL_CTRL_GET_SESS_CACHE_MODE: 838 return(ctx->session_cache_mode); 839 840 case SSL_CTRL_SESS_NUMBER: 841 return(ctx->sessions->num_items); 842 case SSL_CTRL_SESS_CONNECT: 843 return(ctx->stats.sess_connect); 844 case SSL_CTRL_SESS_CONNECT_GOOD: 845 return(ctx->stats.sess_connect_good); 846 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 847 return(ctx->stats.sess_connect_renegotiate); 848 case SSL_CTRL_SESS_ACCEPT: 849 return(ctx->stats.sess_accept); 850 case SSL_CTRL_SESS_ACCEPT_GOOD: 851 return(ctx->stats.sess_accept_good); 852 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 853 return(ctx->stats.sess_accept_renegotiate); 854 case SSL_CTRL_SESS_HIT: 855 return(ctx->stats.sess_hit); 856 case SSL_CTRL_SESS_CB_HIT: 857 return(ctx->stats.sess_cb_hit); 858 case SSL_CTRL_SESS_MISSES: 859 return(ctx->stats.sess_miss); 860 case SSL_CTRL_SESS_TIMEOUTS: 861 return(ctx->stats.sess_timeout); 862 case SSL_CTRL_SESS_CACHE_FULL: 863 return(ctx->stats.sess_cache_full); 864 case SSL_CTRL_OPTIONS: 865 return(ctx->options|=larg); 866 case SSL_CTRL_MODE: 867 return(ctx->mode|=larg); 868 default: 869 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 870 } 871 } 872 873long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)()) 874 { 875 switch(cmd) 876 { 877 default: 878 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 879 } 880 } 881 882int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 883 { 884 long l; 885 886 l=a->id-b->id; 887 if (l == 0L) 888 return(0); 889 else 890 return((l > 0)?1:-1); 891 } 892 893int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 894 const SSL_CIPHER * const *bp) 895 { 896 long l; 897 898 l=(*ap)->id-(*bp)->id; 899 if (l == 0L) 900 return(0); 901 else 902 return((l > 0)?1:-1); 903 } 904 905/** return a STACK of the ciphers available for the SSL and in order of 906 * preference */ 907STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s) 908 { 909 if ((s != NULL) && (s->cipher_list != NULL)) 910 { 911 return(s->cipher_list); 912 } 913 else if ((s->ctx != NULL) && 914 (s->ctx->cipher_list != NULL)) 915 { 916 return(s->ctx->cipher_list); 917 } 918 return(NULL); 919 } 920 921/** return a STACK of the ciphers available for the SSL and in order of 922 * algorithm id */ 923STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 924 { 925 if ((s != NULL) && (s->cipher_list_by_id != NULL)) 926 { 927 return(s->cipher_list_by_id); 928 } 929 else if ((s != NULL) && (s->ctx != NULL) && 930 (s->ctx->cipher_list_by_id != NULL)) 931 { 932 return(s->ctx->cipher_list_by_id); 933 } 934 return(NULL); 935 } 936 937/** The old interface to get the same thing as SSL_get_ciphers() */ 938const char *SSL_get_cipher_list(SSL *s,int n) 939 { 940 SSL_CIPHER *c; 941 STACK_OF(SSL_CIPHER) *sk; 942 943 if (s == NULL) return(NULL); 944 sk=SSL_get_ciphers(s); 945 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 946 return(NULL); 947 c=sk_SSL_CIPHER_value(sk,n); 948 if (c == NULL) return(NULL); 949 return(c->name); 950 } 951 952/** specify the ciphers to be used by default by the SSL_CTX */ 953int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 954 { 955 STACK_OF(SSL_CIPHER) *sk; 956 957 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 958 &ctx->cipher_list_by_id,str); 959/* XXXX */ 960 return((sk == NULL)?0:1); 961 } 962 963/** specify the ciphers to be used by the SSL */ 964int SSL_set_cipher_list(SSL *s,const char *str) 965 { 966 STACK_OF(SSL_CIPHER) *sk; 967 968 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 969 &s->cipher_list_by_id,str); 970/* XXXX */ 971 return((sk == NULL)?0:1); 972 } 973 974/* works well for SSLv2, not so good for SSLv3 */ 975char *SSL_get_shared_ciphers(SSL *s,char *buf,int len) 976 { 977 char *p; 978 const char *cp; 979 STACK_OF(SSL_CIPHER) *sk; 980 SSL_CIPHER *c; 981 int i; 982 983 if ((s->session == NULL) || (s->session->ciphers == NULL) || 984 (len < 2)) 985 return(NULL); 986 987 p=buf; 988 sk=s->session->ciphers; 989 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 990 { 991 /* Decrement for either the ':' or a '\0' */ 992 len--; 993 c=sk_SSL_CIPHER_value(sk,i); 994 for (cp=c->name; *cp; ) 995 { 996 if (len-- == 0) 997 { 998 *p='\0'; 999 return(buf); 1000 } 1001 else 1002 *(p++)= *(cp++); 1003 } 1004 *(p++)=':'; 1005 } 1006 p[-1]='\0'; 1007 return(buf); 1008 } 1009 1010int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p) 1011 { 1012 int i,j=0; 1013 SSL_CIPHER *c; 1014 unsigned char *q; 1015 1016 if (sk == NULL) return(0); 1017 q=p; 1018 1019 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1020 { 1021 c=sk_SSL_CIPHER_value(sk,i); 1022 j=ssl_put_cipher_by_char(s,c,p); 1023 p+=j; 1024 } 1025 return(p-q); 1026 } 1027 1028STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1029 STACK_OF(SSL_CIPHER) **skp) 1030 { 1031 SSL_CIPHER *c; 1032 STACK_OF(SSL_CIPHER) *sk; 1033 int i,n; 1034 1035 n=ssl_put_cipher_by_char(s,NULL,NULL); 1036 if ((num%n) != 0) 1037 { 1038 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1039 return(NULL); 1040 } 1041 if ((skp == NULL) || (*skp == NULL)) 1042 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1043 else 1044 { 1045 sk= *skp; 1046 sk_SSL_CIPHER_zero(sk); 1047 } 1048 1049 for (i=0; i<num; i+=n) 1050 { 1051 c=ssl_get_cipher_by_char(s,p); 1052 p+=n; 1053 if (c != NULL) 1054 { 1055 if (!sk_SSL_CIPHER_push(sk,c)) 1056 { 1057 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1058 goto err; 1059 } 1060 } 1061 } 1062 1063 if (skp != NULL) 1064 *skp=sk; 1065 return(sk); 1066err: 1067 if ((skp == NULL) || (*skp == NULL)) 1068 sk_SSL_CIPHER_free(sk); 1069 return(NULL); 1070 } 1071 1072unsigned long SSL_SESSION_hash(SSL_SESSION *a) 1073 { 1074 unsigned long l; 1075 1076 l=(unsigned long) 1077 ((unsigned int) a->session_id[0] )| 1078 ((unsigned int) a->session_id[1]<< 8L)| 1079 ((unsigned long)a->session_id[2]<<16L)| 1080 ((unsigned long)a->session_id[3]<<24L); 1081 return(l); 1082 } 1083 1084int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b) 1085 { 1086 if (a->ssl_version != b->ssl_version) 1087 return(1); 1088 if (a->session_id_length != b->session_id_length) 1089 return(1); 1090 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1091 } 1092 1093SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1094 { 1095 SSL_CTX *ret=NULL; 1096 1097 if (meth == NULL) 1098 { 1099 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1100 return(NULL); 1101 } 1102 1103 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1104 { 1105 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1106 goto err; 1107 } 1108 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1109 if (ret == NULL) 1110 goto err; 1111 1112 memset(ret,0,sizeof(SSL_CTX)); 1113 1114 ret->method=meth; 1115 1116 ret->cert_store=NULL; 1117 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1118 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1119 ret->session_cache_head=NULL; 1120 ret->session_cache_tail=NULL; 1121 1122 /* We take the system default */ 1123 ret->session_timeout=meth->get_timeout(); 1124 1125 ret->new_session_cb=NULL; 1126 ret->remove_session_cb=NULL; 1127 ret->get_session_cb=NULL; 1128 1129 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1130 1131 ret->references=1; 1132 ret->quiet_shutdown=0; 1133 1134/* ret->cipher=NULL;*/ 1135/* ret->s2->challenge=NULL; 1136 ret->master_key=NULL; 1137 ret->key_arg=NULL; 1138 ret->s2->conn_id=NULL; */ 1139 1140 ret->info_callback=NULL; 1141 1142 ret->app_verify_callback=NULL; 1143 ret->app_verify_arg=NULL; 1144 1145 ret->read_ahead=0; 1146 ret->verify_mode=SSL_VERIFY_NONE; 1147 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1148 ret->default_verify_callback=NULL; 1149 if ((ret->cert=ssl_cert_new()) == NULL) 1150 goto err; 1151 1152 ret->default_passwd_callback=NULL; 1153 ret->default_passwd_callback_userdata=NULL; 1154 ret->client_cert_cb=NULL; 1155 1156 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp); 1157 if (ret->sessions == NULL) goto err; 1158 ret->cert_store=X509_STORE_new(); 1159 if (ret->cert_store == NULL) goto err; 1160 1161 ssl_create_cipher_list(ret->method, 1162 &ret->cipher_list,&ret->cipher_list_by_id, 1163 SSL_DEFAULT_CIPHER_LIST); 1164 if (ret->cipher_list == NULL 1165 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1166 { 1167 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1168 goto err2; 1169 } 1170 1171 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1172 { 1173 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1174 goto err2; 1175 } 1176 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1177 { 1178 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1179 goto err2; 1180 } 1181 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1182 { 1183 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1184 goto err2; 1185 } 1186 1187 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1188 goto err; 1189 1190 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data); 1191 1192 ret->extra_certs=NULL; 1193 ret->comp_methods=SSL_COMP_get_compression_methods(); 1194 1195 return(ret); 1196err: 1197 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1198err2: 1199 if (ret != NULL) SSL_CTX_free(ret); 1200 return(NULL); 1201 } 1202 1203static void SSL_COMP_free(SSL_COMP *comp) 1204 { OPENSSL_free(comp); } 1205 1206void SSL_CTX_free(SSL_CTX *a) 1207 { 1208 int i; 1209 1210 if (a == NULL) return; 1211 1212 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1213#ifdef REF_PRINT 1214 REF_PRINT("SSL_CTX",a); 1215#endif 1216 if (i > 0) return; 1217#ifdef REF_CHECK 1218 if (i < 0) 1219 { 1220 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1221 abort(); /* ok */ 1222 } 1223#endif 1224 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data); 1225 1226 if (a->sessions != NULL) 1227 { 1228 SSL_CTX_flush_sessions(a,0); 1229 lh_free(a->sessions); 1230 } 1231 if (a->cert_store != NULL) 1232 X509_STORE_free(a->cert_store); 1233 if (a->cipher_list != NULL) 1234 sk_SSL_CIPHER_free(a->cipher_list); 1235 if (a->cipher_list_by_id != NULL) 1236 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1237 if (a->cert != NULL) 1238 ssl_cert_free(a->cert); 1239 if (a->client_CA != NULL) 1240 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1241 if (a->extra_certs != NULL) 1242 sk_X509_pop_free(a->extra_certs,X509_free); 1243 if (a->comp_methods != NULL) 1244 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1245 OPENSSL_free(a); 1246 } 1247 1248void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1249 { 1250 ctx->default_passwd_callback=cb; 1251 } 1252 1253void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1254 { 1255 ctx->default_passwd_callback_userdata=u; 1256 } 1257 1258void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg) 1259 { 1260 /* now 1261 * int (*cb)(X509_STORE_CTX *), 1262 * but should be 1263 * int (*cb)(X509_STORE_CTX *, void *arg) 1264 */ 1265 ctx->app_verify_callback=cb; 1266 ctx->app_verify_arg=arg; /* never used */ 1267 } 1268 1269void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1270 { 1271 ctx->verify_mode=mode; 1272 ctx->default_verify_callback=cb; 1273 /* This needs cleaning up EAY EAY EAY */ 1274 X509_STORE_set_verify_cb_func(ctx->cert_store,cb); 1275 } 1276 1277void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1278 { 1279 ctx->verify_depth=depth; 1280 } 1281 1282void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1283 { 1284 CERT_PKEY *cpk; 1285 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1286 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1287 int rsa_tmp_export,dh_tmp_export,kl; 1288 unsigned long mask,emask; 1289 1290 if (c == NULL) return; 1291 1292 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1293 1294#ifndef NO_RSA 1295 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1296 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1297 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1298#else 1299 rsa_tmp=rsa_tmp_export=0; 1300#endif 1301#ifndef NO_DH 1302 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1303 dh_tmp_export=(c->dh_tmp_cb != NULL || 1304 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1305#else 1306 dh_tmp=dh_tmp_export=0; 1307#endif 1308 1309 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1310 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1311 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1312 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1313 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1314 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1315 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1316 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1317 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1318 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1319 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1320/* FIX THIS EAY EAY EAY */ 1321 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1322 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1323 1324 mask=0; 1325 emask=0; 1326 1327#ifdef CIPHER_DEBUG 1328 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1329 rsa_tmp,rsa_tmp_export,dh_tmp, 1330 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1331#endif 1332 1333 if (rsa_enc || (rsa_tmp && rsa_sign)) 1334 mask|=SSL_kRSA; 1335 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1336 emask|=SSL_kRSA; 1337 1338#if 0 1339 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1340 if ( (dh_tmp || dh_rsa || dh_dsa) && 1341 (rsa_enc || rsa_sign || dsa_sign)) 1342 mask|=SSL_kEDH; 1343 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1344 (rsa_enc || rsa_sign || dsa_sign)) 1345 emask|=SSL_kEDH; 1346#endif 1347 1348 if (dh_tmp_export) 1349 emask|=SSL_kEDH; 1350 1351 if (dh_tmp) 1352 mask|=SSL_kEDH; 1353 1354 if (dh_rsa) mask|=SSL_kDHr; 1355 if (dh_rsa_export) emask|=SSL_kDHr; 1356 1357 if (dh_dsa) mask|=SSL_kDHd; 1358 if (dh_dsa_export) emask|=SSL_kDHd; 1359 1360 if (rsa_enc || rsa_sign) 1361 { 1362 mask|=SSL_aRSA; 1363 emask|=SSL_aRSA; 1364 } 1365 1366 if (dsa_sign) 1367 { 1368 mask|=SSL_aDSS; 1369 emask|=SSL_aDSS; 1370 } 1371 1372 mask|=SSL_aNULL; 1373 emask|=SSL_aNULL; 1374 1375 c->mask=mask; 1376 c->export_mask=emask; 1377 c->valid=1; 1378 } 1379 1380/* THIS NEEDS CLEANING UP */ 1381X509 *ssl_get_server_send_cert(SSL *s) 1382 { 1383 unsigned long alg,mask,kalg; 1384 CERT *c; 1385 int i,is_export; 1386 1387 c=s->cert; 1388 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1389 alg=s->s3->tmp.new_cipher->algorithms; 1390 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1391 mask=is_export?c->export_mask:c->mask; 1392 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1393 1394 if (kalg & SSL_kDHr) 1395 i=SSL_PKEY_DH_RSA; 1396 else if (kalg & SSL_kDHd) 1397 i=SSL_PKEY_DH_DSA; 1398 else if (kalg & SSL_aDSS) 1399 i=SSL_PKEY_DSA_SIGN; 1400 else if (kalg & SSL_aRSA) 1401 { 1402 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1403 i=SSL_PKEY_RSA_SIGN; 1404 else 1405 i=SSL_PKEY_RSA_ENC; 1406 } 1407 else /* if (kalg & SSL_aNULL) */ 1408 { 1409 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR); 1410 return(NULL); 1411 } 1412 if (c->pkeys[i].x509 == NULL) return(NULL); 1413 return(c->pkeys[i].x509); 1414 } 1415 1416EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1417 { 1418 unsigned long alg; 1419 CERT *c; 1420 1421 alg=cipher->algorithms; 1422 c=s->cert; 1423 1424 if ((alg & SSL_aDSS) && 1425 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1426 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1427 else if (alg & SSL_aRSA) 1428 { 1429 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1430 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1431 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1432 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1433 else 1434 return(NULL); 1435 } 1436 else /* if (alg & SSL_aNULL) */ 1437 { 1438 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR); 1439 return(NULL); 1440 } 1441 } 1442 1443void ssl_update_cache(SSL *s,int mode) 1444 { 1445 int i; 1446 1447 /* If the session_id_length is 0, we are not supposed to cache it, 1448 * and it would be rather hard to do anyway :-) */ 1449 if (s->session->session_id_length == 0) return; 1450 1451 if ((s->ctx->session_cache_mode & mode) 1452 && (!s->hit) 1453 && SSL_CTX_add_session(s->ctx,s->session) 1454 && (s->ctx->new_session_cb != NULL)) 1455 { 1456 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1457 if (!s->ctx->new_session_cb(s,s->session)) 1458 SSL_SESSION_free(s->session); 1459 } 1460 1461 /* auto flush every 255 connections */ 1462 i=s->ctx->session_cache_mode; 1463 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1464 ((i & mode) == mode)) 1465 { 1466 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1467 ?s->ctx->stats.sess_connect_good 1468 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1469 { 1470 SSL_CTX_flush_sessions(s->ctx,time(NULL)); 1471 } 1472 } 1473 } 1474 1475SSL_METHOD *SSL_get_ssl_method(SSL *s) 1476 { 1477 return(s->method); 1478 } 1479 1480int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 1481 { 1482 int conn= -1; 1483 int ret=1; 1484 1485 if (s->method != meth) 1486 { 1487 if (s->handshake_func != NULL) 1488 conn=(s->handshake_func == s->method->ssl_connect); 1489 1490 if (s->method->version == meth->version) 1491 s->method=meth; 1492 else 1493 { 1494 s->method->ssl_free(s); 1495 s->method=meth; 1496 ret=s->method->ssl_new(s); 1497 } 1498 1499 if (conn == 1) 1500 s->handshake_func=meth->ssl_connect; 1501 else if (conn == 0) 1502 s->handshake_func=meth->ssl_accept; 1503 } 1504 return(ret); 1505 } 1506 1507int SSL_get_error(SSL *s,int i) 1508 { 1509 int reason; 1510 unsigned long l; 1511 BIO *bio; 1512 1513 if (i > 0) return(SSL_ERROR_NONE); 1514 1515 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 1516 * etc, where we do encode the error */ 1517 if ((l=ERR_peek_error()) != 0) 1518 { 1519 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 1520 return(SSL_ERROR_SYSCALL); 1521 else 1522 return(SSL_ERROR_SSL); 1523 } 1524 1525 if ((i < 0) && SSL_want_read(s)) 1526 { 1527 bio=SSL_get_rbio(s); 1528 if (BIO_should_read(bio)) 1529 return(SSL_ERROR_WANT_READ); 1530 else if (BIO_should_write(bio)) 1531 /* This one doesn't make too much sense ... We never try 1532 * to write to the rbio, and an application program where 1533 * rbio and wbio are separate couldn't even know what it 1534 * should wait for. 1535 * However if we ever set s->rwstate incorrectly 1536 * (so that we have SSL_want_read(s) instead of 1537 * SSL_want_write(s)) and rbio and wbio *are* the same, 1538 * this test works around that bug; so it might be safer 1539 * to keep it. */ 1540 return(SSL_ERROR_WANT_WRITE); 1541 else if (BIO_should_io_special(bio)) 1542 { 1543 reason=BIO_get_retry_reason(bio); 1544 if (reason == BIO_RR_CONNECT) 1545 return(SSL_ERROR_WANT_CONNECT); 1546 else 1547 return(SSL_ERROR_SYSCALL); /* unknown */ 1548 } 1549 } 1550 1551 if ((i < 0) && SSL_want_write(s)) 1552 { 1553 bio=SSL_get_wbio(s); 1554 if (BIO_should_write(bio)) 1555 return(SSL_ERROR_WANT_WRITE); 1556 else if (BIO_should_read(bio)) 1557 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 1558 return(SSL_ERROR_WANT_READ); 1559 else if (BIO_should_io_special(bio)) 1560 { 1561 reason=BIO_get_retry_reason(bio); 1562 if (reason == BIO_RR_CONNECT) 1563 return(SSL_ERROR_WANT_CONNECT); 1564 else 1565 return(SSL_ERROR_SYSCALL); 1566 } 1567 } 1568 if ((i < 0) && SSL_want_x509_lookup(s)) 1569 { 1570 return(SSL_ERROR_WANT_X509_LOOKUP); 1571 } 1572 1573 if (i == 0) 1574 { 1575 if (s->version == SSL2_VERSION) 1576 { 1577 /* assume it is the socket being closed */ 1578 return(SSL_ERROR_ZERO_RETURN); 1579 } 1580 else 1581 { 1582 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 1583 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 1584 return(SSL_ERROR_ZERO_RETURN); 1585 } 1586 } 1587 return(SSL_ERROR_SYSCALL); 1588 } 1589 1590int SSL_do_handshake(SSL *s) 1591 { 1592 int ret=1; 1593 1594 if (s->handshake_func == NULL) 1595 { 1596 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 1597 return(-1); 1598 } 1599 1600 s->method->ssl_renegotiate_check(s); 1601 1602 if (SSL_in_init(s) || SSL_in_before(s)) 1603 { 1604 ret=s->handshake_func(s); 1605 } 1606 return(ret); 1607 } 1608 1609/* For the next 2 functions, SSL_clear() sets shutdown and so 1610 * one of these calls will reset it */ 1611void SSL_set_accept_state(SSL *s) 1612 { 1613 s->server=1; 1614 s->shutdown=0; 1615 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 1616 s->handshake_func=s->method->ssl_accept; 1617 /* clear the current cipher */ 1618 ssl_clear_cipher_ctx(s); 1619 } 1620 1621void SSL_set_connect_state(SSL *s) 1622 { 1623 s->server=0; 1624 s->shutdown=0; 1625 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 1626 s->handshake_func=s->method->ssl_connect; 1627 /* clear the current cipher */ 1628 ssl_clear_cipher_ctx(s); 1629 } 1630 1631int ssl_undefined_function(SSL *s) 1632 { 1633 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1634 return(0); 1635 } 1636 1637SSL_METHOD *ssl_bad_method(int ver) 1638 { 1639 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1640 return(NULL); 1641 } 1642 1643const char *SSL_get_version(SSL *s) 1644 { 1645 if (s->version == TLS1_VERSION) 1646 return("TLSv1"); 1647 else if (s->version == SSL3_VERSION) 1648 return("SSLv3"); 1649 else if (s->version == SSL2_VERSION) 1650 return("SSLv2"); 1651 else 1652 return("unknown"); 1653 } 1654 1655SSL *SSL_dup(SSL *s) 1656 { 1657 STACK_OF(X509_NAME) *sk; 1658 X509_NAME *xn; 1659 SSL *ret; 1660 int i; 1661 1662 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 1663 return(NULL); 1664 1665 if (s->session != NULL) 1666 { 1667 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 1668 SSL_copy_session_id(ret,s); 1669 } 1670 else 1671 { 1672 /* No session has been established yet, so we have to expect 1673 * that s->cert or ret->cert will be changed later -- 1674 * they should not both point to the same object, 1675 * and thus we can't use SSL_copy_session_id. */ 1676 1677 ret->method = s->method; 1678 ret->method->ssl_new(ret); 1679 1680 if (s->cert != NULL) 1681 { 1682 ret->cert = ssl_cert_dup(s->cert); 1683 if (ret->cert == NULL) 1684 goto err; 1685 } 1686 1687 SSL_set_session_id_context(ret, 1688 s->sid_ctx, s->sid_ctx_length); 1689 } 1690 1691 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 1692 SSL_set_verify(ret,SSL_get_verify_mode(s), 1693 SSL_get_verify_callback(s)); 1694 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 1695 1696 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 1697 1698 ret->debug=s->debug; 1699 ret->options=s->options; 1700 1701 /* copy app data, a little dangerous perhaps */ 1702 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data)) 1703 goto err; 1704 1705 /* setup rbio, and wbio */ 1706 if (s->rbio != NULL) 1707 { 1708 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 1709 goto err; 1710 } 1711 if (s->wbio != NULL) 1712 { 1713 if (s->wbio != s->rbio) 1714 { 1715 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 1716 goto err; 1717 } 1718 else 1719 ret->wbio=ret->rbio; 1720 } 1721 1722 /* dup the cipher_list and cipher_list_by_id stacks */ 1723 if (s->cipher_list != NULL) 1724 { 1725 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 1726 goto err; 1727 } 1728 if (s->cipher_list_by_id != NULL) 1729 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 1730 == NULL) 1731 goto err; 1732 1733 /* Dup the client_CA list */ 1734 if (s->client_CA != NULL) 1735 { 1736 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 1737 ret->client_CA=sk; 1738 for (i=0; i<sk_X509_NAME_num(sk); i++) 1739 { 1740 xn=sk_X509_NAME_value(sk,i); 1741 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 1742 { 1743 X509_NAME_free(xn); 1744 goto err; 1745 } 1746 } 1747 } 1748 1749 ret->shutdown=s->shutdown; 1750 ret->state=s->state; 1751 ret->handshake_func=s->handshake_func; 1752 ret->server=s->server; 1753 1754 if (0) 1755 { 1756err: 1757 if (ret != NULL) SSL_free(ret); 1758 ret=NULL; 1759 } 1760 return(ret); 1761 } 1762 1763void ssl_clear_cipher_ctx(SSL *s) 1764 { 1765 if (s->enc_read_ctx != NULL) 1766 { 1767 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 1768 OPENSSL_free(s->enc_read_ctx); 1769 s->enc_read_ctx=NULL; 1770 } 1771 if (s->enc_write_ctx != NULL) 1772 { 1773 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 1774 OPENSSL_free(s->enc_write_ctx); 1775 s->enc_write_ctx=NULL; 1776 } 1777 if (s->expand != NULL) 1778 { 1779 COMP_CTX_free(s->expand); 1780 s->expand=NULL; 1781 } 1782 if (s->compress != NULL) 1783 { 1784 COMP_CTX_free(s->compress); 1785 s->compress=NULL; 1786 } 1787 } 1788 1789/* Fix this function so that it takes an optional type parameter */ 1790X509 *SSL_get_certificate(SSL *s) 1791 { 1792 if (s->cert != NULL) 1793 return(s->cert->key->x509); 1794 else 1795 return(NULL); 1796 } 1797 1798/* Fix this function so that it takes an optional type parameter */ 1799EVP_PKEY *SSL_get_privatekey(SSL *s) 1800 { 1801 if (s->cert != NULL) 1802 return(s->cert->key->privatekey); 1803 else 1804 return(NULL); 1805 } 1806 1807SSL_CIPHER *SSL_get_current_cipher(SSL *s) 1808 { 1809 if ((s->session != NULL) && (s->session->cipher != NULL)) 1810 return(s->session->cipher); 1811 return(NULL); 1812 } 1813 1814int ssl_init_wbio_buffer(SSL *s,int push) 1815 { 1816 BIO *bbio; 1817 1818 if (s->bbio == NULL) 1819 { 1820 bbio=BIO_new(BIO_f_buffer()); 1821 if (bbio == NULL) return(0); 1822 s->bbio=bbio; 1823 } 1824 else 1825 { 1826 bbio=s->bbio; 1827 if (s->bbio == s->wbio) 1828 s->wbio=BIO_pop(s->wbio); 1829 } 1830 (void)BIO_reset(bbio); 1831/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 1832 if (!BIO_set_read_buffer_size(bbio,1)) 1833 { 1834 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 1835 return(0); 1836 } 1837 if (push) 1838 { 1839 if (s->wbio != bbio) 1840 s->wbio=BIO_push(bbio,s->wbio); 1841 } 1842 else 1843 { 1844 if (s->wbio == bbio) 1845 s->wbio=BIO_pop(bbio); 1846 } 1847 return(1); 1848 } 1849 1850void ssl_free_wbio_buffer(SSL *s) 1851 { 1852 if (s->bbio == NULL) return; 1853 1854 if (s->bbio == s->wbio) 1855 { 1856 /* remove buffering */ 1857 s->wbio=BIO_pop(s->wbio); 1858#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 1859 assert(s->wbio != NULL); 1860#endif 1861 } 1862 BIO_free(s->bbio); 1863 s->bbio=NULL; 1864 } 1865 1866void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 1867 { 1868 ctx->quiet_shutdown=mode; 1869 } 1870 1871int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx) 1872 { 1873 return(ctx->quiet_shutdown); 1874 } 1875 1876void SSL_set_quiet_shutdown(SSL *s,int mode) 1877 { 1878 s->quiet_shutdown=mode; 1879 } 1880 1881int SSL_get_quiet_shutdown(SSL *s) 1882 { 1883 return(s->quiet_shutdown); 1884 } 1885 1886void SSL_set_shutdown(SSL *s,int mode) 1887 { 1888 s->shutdown=mode; 1889 } 1890 1891int SSL_get_shutdown(SSL *s) 1892 { 1893 return(s->shutdown); 1894 } 1895 1896int SSL_version(SSL *s) 1897 { 1898 return(s->version); 1899 } 1900 1901SSL_CTX *SSL_get_SSL_CTX(SSL *ssl) 1902 { 1903 return(ssl->ctx); 1904 } 1905 1906#ifndef NO_STDIO 1907int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 1908 { 1909 return(X509_STORE_set_default_paths(ctx->cert_store)); 1910 } 1911 1912int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 1913 const char *CApath) 1914 { 1915 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 1916 } 1917#endif 1918 1919void SSL_set_info_callback(SSL *ssl,void (*cb)()) 1920 { 1921 ssl->info_callback=cb; 1922 } 1923 1924void (*SSL_get_info_callback(SSL *ssl))(void) 1925 { 1926 return((void (*)())ssl->info_callback); 1927 } 1928 1929int SSL_state(SSL *ssl) 1930 { 1931 return(ssl->state); 1932 } 1933 1934void SSL_set_verify_result(SSL *ssl,long arg) 1935 { 1936 ssl->verify_result=arg; 1937 } 1938 1939long SSL_get_verify_result(SSL *ssl) 1940 { 1941 return(ssl->verify_result); 1942 } 1943 1944int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1945 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1946 { 1947 ssl_meth_num++; 1948 return(CRYPTO_get_ex_new_index(ssl_meth_num-1, 1949 &ssl_meth,argl,argp,new_func,dup_func,free_func)); 1950 } 1951 1952int SSL_set_ex_data(SSL *s,int idx,void *arg) 1953 { 1954 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1955 } 1956 1957void *SSL_get_ex_data(SSL *s,int idx) 1958 { 1959 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1960 } 1961 1962int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1963 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1964 { 1965 ssl_ctx_meth_num++; 1966 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1, 1967 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func)); 1968 } 1969 1970int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 1971 { 1972 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1973 } 1974 1975void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx) 1976 { 1977 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1978 } 1979 1980int ssl_ok(SSL *s) 1981 { 1982 return(1); 1983 } 1984 1985X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx) 1986 { 1987 return(ctx->cert_store); 1988 } 1989 1990void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 1991 { 1992 if (ctx->cert_store != NULL) 1993 X509_STORE_free(ctx->cert_store); 1994 ctx->cert_store=store; 1995 } 1996 1997int SSL_want(SSL *s) 1998 { 1999 return(s->rwstate); 2000 } 2001 2002/*! 2003 * \brief Set the callback for generating temporary RSA keys. 2004 * \param ctx the SSL context. 2005 * \param cb the callback 2006 */ 2007 2008#ifndef NO_RSA 2009void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2010 int is_export, 2011 int keylength)) 2012 { 2013 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2014 } 2015 2016void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2017 int is_export, 2018 int keylength)) 2019 { 2020 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2021 } 2022#endif 2023 2024#ifdef DOXYGEN 2025/*! 2026 * \brief The RSA temporary key callback function. 2027 * \param ssl the SSL session. 2028 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2029 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2030 * of the required key in bits. 2031 * \return the temporary RSA key. 2032 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2033 */ 2034 2035RSA *cb(SSL *ssl,int is_export,int keylength) 2036 {} 2037#endif 2038 2039/*! 2040 * \brief Set the callback for generating temporary DH keys. 2041 * \param ctx the SSL context. 2042 * \param dh the callback 2043 */ 2044 2045#ifndef NO_DH 2046void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2047 int keylength)) 2048 { 2049 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2050 } 2051 2052void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2053 int keylength)) 2054 { 2055 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2056 } 2057#endif 2058 2059#if defined(_WINDLL) && defined(WIN16) 2060#include "../crypto/bio/bss_file.c" 2061#endif 2062 2063IMPLEMENT_STACK_OF(SSL_CIPHER) 2064IMPLEMENT_STACK_OF(SSL_COMP) 2065