X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_cert.c;h=6f9fcdb350ed66caef97f81fa7d4f1fbff995e7f;hp=0c9bd073784c44f10403c9164162e3f29ae73c14;hb=e44380a990a3edf1cd0c190c6459c8c026d53646;hpb=1d42741a19d31b50b645a6024909e45e9501fb65 diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c index 0c9bd07378..6f9fcdb350 100644 --- a/ssl/ssl_cert.c +++ b/ssl/ssl_cert.c @@ -1,25 +1,27 @@ -/*! \file ssl/ssl_cert.c */ +/* + * ! \file ssl/ssl_cert.c + */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +36,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,21 +51,21 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* ==================================================================== - * Copyright (c) 1999 The OpenSSL Project. All rights reserved. + * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -73,12 +75,12 @@ * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact - * openssl-core@OpenSSL.org. + * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written @@ -87,7 +89,7 @@ * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE @@ -102,10 +104,15 @@ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * */ /* ==================================================================== * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. - * ECC cipher suite support in OpenSSL originally developed by + * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ @@ -116,513 +123,556 @@ # include #endif -#include "o_dir.h" +#include "internal/o_dir.h" #include #include #include #include -#include +#ifndef OPENSSL_NO_DH +# include +#endif #include #include "ssl_locl.h" +static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, + int bits, int nid, void *other, + void *ex); + int SSL_get_ex_data_X509_STORE_CTX_idx(void) - { - static volatile int ssl_x509_store_ctx_idx= -1; - - if (ssl_x509_store_ctx_idx < 0) - { - /* any write lock will do; usually this branch - * will only be taken once anyway */ - CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); - - if (ssl_x509_store_ctx_idx < 0) - { - ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index( - 0,"SSL for verify callback",NULL,NULL,NULL); - } - - CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); - } - return ssl_x509_store_ctx_idx; - } +{ + static volatile int ssl_x509_store_ctx_idx = -1; + int got_write_lock = 0; -CERT *ssl_cert_new(void) - { - CERT *ret; + CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); - ret=(CERT *)OPENSSL_malloc(sizeof(CERT)); - if (ret == NULL) - { - SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE); - return(NULL); - } - memset(ret,0,sizeof(CERT)); + if (ssl_x509_store_ctx_idx < 0) { + CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); + CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); + got_write_lock = 1; - ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]); - ret->references=1; + if (ssl_x509_store_ctx_idx < 0) { + ssl_x509_store_ctx_idx = + X509_STORE_CTX_get_ex_new_index(0, "SSL for verify callback", + NULL, NULL, NULL); + } + } - return(ret); - } + if (got_write_lock) + CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); + else + CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); -CERT *ssl_cert_dup(CERT *cert) - { - CERT *ret; - int i; + return ssl_x509_store_ctx_idx; +} - ret = (CERT *)OPENSSL_malloc(sizeof(CERT)); - if (ret == NULL) - { - SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); - return(NULL); - } +CERT *ssl_cert_new(void) +{ + CERT *ret = OPENSSL_zalloc(sizeof(*ret)); + + if (ret == NULL) { + SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); + return (NULL); + } + + ret->key = &(ret->pkeys[SSL_PKEY_RSA_ENC]); + ret->references = 1; + ret->sec_cb = ssl_security_default_callback; + ret->sec_level = OPENSSL_TLS_SECURITY_LEVEL; + ret->sec_ex = NULL; + return (ret); +} - memset(ret, 0, sizeof(CERT)); +CERT *ssl_cert_dup(CERT *cert) +{ + CERT *ret = OPENSSL_zalloc(sizeof(*ret)); + int i; - ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]]; - /* or ret->key = ret->pkeys + (cert->key - cert->pkeys), - * if you find that more readable */ + if (ret == NULL) { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); + return (NULL); + } - ret->valid = cert->valid; - ret->mask = cert->mask; - ret->export_mask = cert->export_mask; + ret->references = 1; + ret->key = &ret->pkeys[cert->key - cert->pkeys]; #ifndef OPENSSL_NO_RSA - if (cert->rsa_tmp != NULL) - { - RSA_up_ref(cert->rsa_tmp); - ret->rsa_tmp = cert->rsa_tmp; - } - ret->rsa_tmp_cb = cert->rsa_tmp_cb; + if (cert->rsa_tmp != NULL) { + RSA_up_ref(cert->rsa_tmp); + ret->rsa_tmp = cert->rsa_tmp; + } + ret->rsa_tmp_cb = cert->rsa_tmp_cb; #endif #ifndef OPENSSL_NO_DH - if (cert->dh_tmp != NULL) - { - /* DH parameters don't have a reference count */ - ret->dh_tmp = DHparams_dup(cert->dh_tmp); - if (ret->dh_tmp == NULL) - { - SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB); - goto err; - } - if (cert->dh_tmp->priv_key) - { - BIGNUM *b = BN_dup(cert->dh_tmp->priv_key); - if (!b) - { - SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); - goto err; - } - ret->dh_tmp->priv_key = b; - } - if (cert->dh_tmp->pub_key) - { - BIGNUM *b = BN_dup(cert->dh_tmp->pub_key); - if (!b) - { - SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); - goto err; - } - ret->dh_tmp->pub_key = b; - } - } - ret->dh_tmp_cb = cert->dh_tmp_cb; + if (cert->dh_tmp != NULL) { + ret->dh_tmp = DHparams_dup(cert->dh_tmp); + if (ret->dh_tmp == NULL) { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB); + goto err; + } + if (cert->dh_tmp->priv_key) { + BIGNUM *b = BN_dup(cert->dh_tmp->priv_key); + if (!b) { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); + goto err; + } + ret->dh_tmp->priv_key = b; + } + if (cert->dh_tmp->pub_key) { + BIGNUM *b = BN_dup(cert->dh_tmp->pub_key); + if (!b) { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); + goto err; + } + ret->dh_tmp->pub_key = b; + } + } + ret->dh_tmp_cb = cert->dh_tmp_cb; + ret->dh_tmp_auto = cert->dh_tmp_auto; #endif -#ifndef OPENSSL_NO_ECDH - if (cert->ecdh_tmp) - { - EC_KEY_up_ref(cert->ecdh_tmp); - ret->ecdh_tmp = cert->ecdh_tmp; - } - ret->ecdh_tmp_cb = cert->ecdh_tmp_cb; +#ifndef OPENSSL_NO_EC + if (cert->ecdh_tmp) { + ret->ecdh_tmp = EC_KEY_dup(cert->ecdh_tmp); + if (ret->ecdh_tmp == NULL) { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_EC_LIB); + goto err; + } + } + ret->ecdh_tmp_cb = cert->ecdh_tmp_cb; + ret->ecdh_tmp_auto = cert->ecdh_tmp_auto; #endif - for (i = 0; i < SSL_PKEY_NUM; i++) - { - if (cert->pkeys[i].x509 != NULL) - { - ret->pkeys[i].x509 = cert->pkeys[i].x509; - CRYPTO_add(&ret->pkeys[i].x509->references, 1, - CRYPTO_LOCK_X509); - } - - if (cert->pkeys[i].privatekey != NULL) - { - ret->pkeys[i].privatekey = cert->pkeys[i].privatekey; - CRYPTO_add(&ret->pkeys[i].privatekey->references, 1, - CRYPTO_LOCK_EVP_PKEY); - - switch(i) - { - /* If there was anything special to do for - * certain types of keys, we'd do it here. - * (Nothing at the moment, I think.) */ - - case SSL_PKEY_RSA_ENC: - case SSL_PKEY_RSA_SIGN: - /* We have an RSA key. */ - break; - - case SSL_PKEY_DSA_SIGN: - /* We have a DSA key. */ - break; - - case SSL_PKEY_DH_RSA: - case SSL_PKEY_DH_DSA: - /* We have a DH key. */ - break; - - case SSL_PKEY_ECC: - /* We have an ECC key */ - break; - - default: - /* Can't happen. */ - SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG); - } - } - } - - /* ret->extra_certs *should* exist, but currently the own certificate - * chain is held inside SSL_CTX */ - - ret->references=1; - - return(ret); - -#ifndef OPENSSL_NO_DH /* avoid 'unreferenced label' warning if OPENSSL_NO_DH is defined */ -err: -#endif -#ifndef OPENSSL_NO_RSA - if (ret->rsa_tmp != NULL) - RSA_free(ret->rsa_tmp); -#endif -#ifndef OPENSSL_NO_DH - if (ret->dh_tmp != NULL) - DH_free(ret->dh_tmp); -#endif -#ifndef OPENSSL_NO_ECDH - if (ret->ecdh_tmp != NULL) - EC_KEY_free(ret->ecdh_tmp); + for (i = 0; i < SSL_PKEY_NUM; i++) { + CERT_PKEY *cpk = cert->pkeys + i; + CERT_PKEY *rpk = ret->pkeys + i; + if (cpk->x509 != NULL) { + rpk->x509 = cpk->x509; + X509_up_ref(rpk->x509); + } + + if (cpk->privatekey != NULL) { + rpk->privatekey = cpk->privatekey; + CRYPTO_add(&cpk->privatekey->references, 1, CRYPTO_LOCK_EVP_PKEY); + } + + if (cpk->chain) { + rpk->chain = X509_chain_up_ref(cpk->chain); + if (!rpk->chain) { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); + goto err; + } + } + if (cert->pkeys[i].serverinfo != NULL) { + /* Just copy everything. */ + ret->pkeys[i].serverinfo = + OPENSSL_malloc(cert->pkeys[i].serverinfo_length); + if (ret->pkeys[i].serverinfo == NULL) { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); + goto err; + } + ret->pkeys[i].serverinfo_length = + cert->pkeys[i].serverinfo_length; + memcpy(ret->pkeys[i].serverinfo, + cert->pkeys[i].serverinfo, + cert->pkeys[i].serverinfo_length); + } + } + + /* Configured sigalgs copied across */ + if (cert->conf_sigalgs) { + ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen); + if (ret->conf_sigalgs == NULL) + goto err; + memcpy(ret->conf_sigalgs, cert->conf_sigalgs, cert->conf_sigalgslen); + ret->conf_sigalgslen = cert->conf_sigalgslen; + } else + ret->conf_sigalgs = NULL; + + if (cert->client_sigalgs) { + ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen); + if (ret->client_sigalgs == NULL) + goto err; + memcpy(ret->client_sigalgs, cert->client_sigalgs, + cert->client_sigalgslen); + ret->client_sigalgslen = cert->client_sigalgslen; + } else + ret->client_sigalgs = NULL; + /* Shared sigalgs also NULL */ + ret->shared_sigalgs = NULL; + /* Copy any custom client certificate types */ + if (cert->ctypes) { + ret->ctypes = OPENSSL_malloc(cert->ctype_num); + if (ret->ctypes == NULL) + goto err; + memcpy(ret->ctypes, cert->ctypes, cert->ctype_num); + ret->ctype_num = cert->ctype_num; + } + + ret->cert_flags = cert->cert_flags; + + ret->cert_cb = cert->cert_cb; + ret->cert_cb_arg = cert->cert_cb_arg; + + if (cert->verify_store) { + CRYPTO_add(&cert->verify_store->references, 1, + CRYPTO_LOCK_X509_STORE); + ret->verify_store = cert->verify_store; + } + + if (cert->chain_store) { + CRYPTO_add(&cert->chain_store->references, 1, CRYPTO_LOCK_X509_STORE); + ret->chain_store = cert->chain_store; + } + + ret->sec_cb = cert->sec_cb; + ret->sec_level = cert->sec_level; + ret->sec_ex = cert->sec_ex; + + if (!custom_exts_copy(&ret->cli_ext, &cert->cli_ext)) + goto err; + if (!custom_exts_copy(&ret->srv_ext, &cert->srv_ext)) + goto err; +#ifndef OPENSSL_NO_PSK + if (cert->psk_identity_hint) { + ret->psk_identity_hint = BUF_strdup(cert->psk_identity_hint); + if (ret->psk_identity_hint == NULL) + goto err; + } #endif - - for (i = 0; i < SSL_PKEY_NUM; i++) - { - if (ret->pkeys[i].x509 != NULL) - X509_free(ret->pkeys[i].x509); - if (ret->pkeys[i].privatekey != NULL) - EVP_PKEY_free(ret->pkeys[i].privatekey); - } - - return NULL; - } - + return (ret); + + err: + ssl_cert_free(ret); + + return NULL; +} + +/* Free up and clear all certificates and chains */ + +void ssl_cert_clear_certs(CERT *c) +{ + int i; + if (c == NULL) + return; + for (i = 0; i < SSL_PKEY_NUM; i++) { + CERT_PKEY *cpk = c->pkeys + i; + X509_free(cpk->x509); + cpk->x509 = NULL; + EVP_PKEY_free(cpk->privatekey); + cpk->privatekey = NULL; + sk_X509_pop_free(cpk->chain, X509_free); + cpk->chain = NULL; + OPENSSL_free(cpk->serverinfo); + cpk->serverinfo = NULL; + cpk->serverinfo_length = 0; + } +} void ssl_cert_free(CERT *c) - { - int i; - - if(c == NULL) - return; - - i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT); -#ifdef REF_PRINT - REF_PRINT("CERT",c); -#endif - if (i > 0) return; -#ifdef REF_CHECK - if (i < 0) - { - fprintf(stderr,"ssl_cert_free, bad reference count\n"); - abort(); /* ok */ - } -#endif +{ + int i; -#ifndef OPENSSL_NO_RSA - if (c->rsa_tmp) RSA_free(c->rsa_tmp); -#endif -#ifndef OPENSSL_NO_DH - if (c->dh_tmp) DH_free(c->dh_tmp); -#endif -#ifndef OPENSSL_NO_ECDH - if (c->ecdh_tmp) EC_KEY_free(c->ecdh_tmp); -#endif + if (c == NULL) + return; - for (i=0; ipkeys[i].x509 != NULL) - X509_free(c->pkeys[i].x509); - if (c->pkeys[i].privatekey != NULL) - EVP_PKEY_free(c->pkeys[i].privatekey); -#if 0 - if (c->pkeys[i].publickey != NULL) - EVP_PKEY_free(c->pkeys[i].publickey); -#endif - } - OPENSSL_free(c); - } - -int ssl_cert_inst(CERT **o) - { - /* Create a CERT if there isn't already one - * (which cannot really happen, as it is initially created in - * SSL_CTX_new; but the earlier code usually allows for that one - * being non-existant, so we follow that behaviour, as it might - * turn out that there actually is a reason for it -- but I'm - * not sure that *all* of the existing code could cope with - * s->cert being NULL, otherwise we could do without the - * initialization in SSL_CTX_new). - */ - - if (o == NULL) - { - SSLerr(SSL_F_SSL_CERT_INST, ERR_R_PASSED_NULL_PARAMETER); - return(0); - } - if (*o == NULL) - { - if ((*o = ssl_cert_new()) == NULL) - { - SSLerr(SSL_F_SSL_CERT_INST, ERR_R_MALLOC_FAILURE); - return(0); - } - } - return(1); - } - - -SESS_CERT *ssl_sess_cert_new(void) - { - SESS_CERT *ret; - - ret = OPENSSL_malloc(sizeof *ret); - if (ret == NULL) - { - SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE); - return NULL; - } - - memset(ret, 0 ,sizeof *ret); - ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]); - ret->references = 1; - - return ret; - } - -void ssl_sess_cert_free(SESS_CERT *sc) - { - int i; - - if (sc == NULL) - return; - - i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT); + i = CRYPTO_add(&c->references, -1, CRYPTO_LOCK_SSL_CERT); #ifdef REF_PRINT - REF_PRINT("SESS_CERT", sc); + REF_PRINT("CERT", c); #endif - if (i > 0) - return; + if (i > 0) + return; #ifdef REF_CHECK - if (i < 0) - { - fprintf(stderr,"ssl_sess_cert_free, bad reference count\n"); - abort(); /* ok */ - } -#endif - - /* i == 0 */ - if (sc->cert_chain != NULL) - sk_X509_pop_free(sc->cert_chain, X509_free); - for (i = 0; i < SSL_PKEY_NUM; i++) - { - if (sc->peer_pkeys[i].x509 != NULL) - X509_free(sc->peer_pkeys[i].x509); -#if 0 /* We don't have the peer's private key. These lines are just - * here as a reminder that we're still using a not-quite-appropriate - * data structure. */ - if (sc->peer_pkeys[i].privatekey != NULL) - EVP_PKEY_free(sc->peer_pkeys[i].privatekey); + if (i < 0) { + fprintf(stderr, "ssl_cert_free, bad reference count\n"); + abort(); /* ok */ + } #endif - } #ifndef OPENSSL_NO_RSA - if (sc->peer_rsa_tmp != NULL) - RSA_free(sc->peer_rsa_tmp); + RSA_free(c->rsa_tmp); #endif #ifndef OPENSSL_NO_DH - if (sc->peer_dh_tmp != NULL) - DH_free(sc->peer_dh_tmp); + DH_free(c->dh_tmp); #endif -#ifndef OPENSSL_NO_ECDH - if (sc->peer_ecdh_tmp != NULL) - EC_KEY_free(sc->peer_ecdh_tmp); +#ifndef OPENSSL_NO_EC + EC_KEY_free(c->ecdh_tmp); #endif - OPENSSL_free(sc); - } - -int ssl_set_peer_cert_type(SESS_CERT *sc,int type) - { - sc->peer_cert_type = type; - return(1); - } - -int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk) - { - X509 *x; - int i; - X509_STORE_CTX ctx; - - if ((sk == NULL) || (sk_X509_num(sk) == 0)) - return(0); - - x=sk_X509_value(sk,0); - if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk)) - { - SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB); - return(0); - } - if (s->param) - X509_VERIFY_PARAM_inherit(X509_STORE_CTX_get0_param(&ctx), - s->param); -#if 0 - if (SSL_get_verify_depth(s) >= 0) - X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s)); + ssl_cert_clear_certs(c); + OPENSSL_free(c->conf_sigalgs); + OPENSSL_free(c->client_sigalgs); + OPENSSL_free(c->shared_sigalgs); + OPENSSL_free(c->ctypes); + X509_STORE_free(c->verify_store); + X509_STORE_free(c->chain_store); + custom_exts_free(&c->cli_ext); + custom_exts_free(&c->srv_ext); +#ifndef OPENSSL_NO_PSK + OPENSSL_free(c->psk_identity_hint); #endif - X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s); - - /* We need to inherit the verify parameters. These can be determined by - * the context: if its a server it will verify SSL client certificates - * or vice versa. - */ - - X509_STORE_CTX_set_default(&ctx, - s->server ? "ssl_client" : "ssl_server"); - - if (s->verify_callback) - X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback); - - if (s->ctx->app_verify_callback != NULL) -#if 1 /* new with OpenSSL 0.9.7 */ - i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg); -#else - i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_arg */ -#endif - else - { -#ifndef OPENSSL_NO_X509_VERIFY - i=X509_verify_cert(&ctx); -#else - i=0; - ctx.error=X509_V_ERR_APPLICATION_VERIFICATION; - SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK); -#endif - } - - s->verify_result=ctx.error; - X509_STORE_CTX_cleanup(&ctx); - - return(i); - } - -static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *name_list) - { - if (*ca_list != NULL) - sk_X509_NAME_pop_free(*ca_list,X509_NAME_free); - - *ca_list=name_list; - } + OPENSSL_free(c); +} + +int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) +{ + int i, r; + CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; + if (!cpk) + return 0; + sk_X509_pop_free(cpk->chain, X509_free); + for (i = 0; i < sk_X509_num(chain); i++) { + r = ssl_security_cert(s, ctx, sk_X509_value(chain, i), 0, 0); + if (r != 1) { + SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r); + return 0; + } + } + cpk->chain = chain; + return 1; +} + +int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) +{ + STACK_OF(X509) *dchain; + if (!chain) + return ssl_cert_set0_chain(s, ctx, NULL); + dchain = X509_chain_up_ref(chain); + if (!dchain) + return 0; + if (!ssl_cert_set0_chain(s, ctx, dchain)) { + sk_X509_pop_free(dchain, X509_free); + return 0; + } + return 1; +} + +int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) +{ + int r; + CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; + if (!cpk) + return 0; + r = ssl_security_cert(s, ctx, x, 0, 0); + if (r != 1) { + SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r); + return 0; + } + if (!cpk->chain) + cpk->chain = sk_X509_new_null(); + if (!cpk->chain || !sk_X509_push(cpk->chain, x)) + return 0; + return 1; +} + +int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) +{ + if (!ssl_cert_add0_chain_cert(s, ctx, x)) + return 0; + X509_up_ref(x); + return 1; +} + +int ssl_cert_select_current(CERT *c, X509 *x) +{ + int i; + if (x == NULL) + return 0; + for (i = 0; i < SSL_PKEY_NUM; i++) { + CERT_PKEY *cpk = c->pkeys + i; + if (cpk->x509 == x && cpk->privatekey) { + c->key = cpk; + return 1; + } + } + + for (i = 0; i < SSL_PKEY_NUM; i++) { + CERT_PKEY *cpk = c->pkeys + i; + if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x)) { + c->key = cpk; + return 1; + } + } + return 0; +} + +int ssl_cert_set_current(CERT *c, long op) +{ + int i, idx; + if (!c) + return 0; + if (op == SSL_CERT_SET_FIRST) + idx = 0; + else if (op == SSL_CERT_SET_NEXT) { + idx = (int)(c->key - c->pkeys + 1); + if (idx >= SSL_PKEY_NUM) + return 0; + } else + return 0; + for (i = idx; i < SSL_PKEY_NUM; i++) { + CERT_PKEY *cpk = c->pkeys + i; + if (cpk->x509 && cpk->privatekey) { + c->key = cpk; + return 1; + } + } + return 0; +} + +void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg) +{ + c->cert_cb = cb; + c->cert_cb_arg = arg; +} + +int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) +{ + X509 *x; + int i; + X509_STORE *verify_store; + X509_STORE_CTX ctx; + + if (s->cert->verify_store) + verify_store = s->cert->verify_store; + else + verify_store = s->ctx->cert_store; + + if ((sk == NULL) || (sk_X509_num(sk) == 0)) + return (0); + + x = sk_X509_value(sk, 0); + if (!X509_STORE_CTX_init(&ctx, verify_store, x, sk)) { + SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); + return (0); + } + /* Set suite B flags if needed */ + X509_STORE_CTX_set_flags(&ctx, tls1_suiteb(s)); + X509_STORE_CTX_set_ex_data(&ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s); + + /* + * We need to inherit the verify parameters. These can be determined by + * the context: if its a server it will verify SSL client certificates or + * vice versa. + */ + + X509_STORE_CTX_set_default(&ctx, s->server ? "ssl_client" : "ssl_server"); + /* + * Anything non-default in "param" should overwrite anything in the ctx. + */ + X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param); + + if (s->verify_callback) + X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback); + + if (s->ctx->app_verify_callback != NULL) + i = s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg); + else { + i = X509_verify_cert(&ctx); +# if 0 + /* Dummy error calls so mkerr generates them */ + SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_EE_KEY_TOO_SMALL); + SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_CA_KEY_TOO_SMALL); + SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, SSL_R_CA_MD_TOO_WEAK); +# endif + if (i > 0) + i = ssl_security_cert_chain(s, ctx.chain, NULL, 1); + } + + s->verify_result = ctx.error; + X509_STORE_CTX_cleanup(&ctx); + + return (i); +} + +static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list, + STACK_OF(X509_NAME) *name_list) +{ + sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); + *ca_list = name_list; +} STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk) - { - int i; - STACK_OF(X509_NAME) *ret; - X509_NAME *name; - - ret=sk_X509_NAME_new_null(); - for (i=0; iclient_CA),name_list); - } - -void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *name_list) - { - set_client_CA_list(&(ctx->client_CA),name_list); - } +{ + int i; + STACK_OF(X509_NAME) *ret; + X509_NAME *name; + + ret = sk_X509_NAME_new_null(); + for (i = 0; i < sk_X509_NAME_num(sk); i++) { + name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); + if ((name == NULL) || !sk_X509_NAME_push(ret, name)) { + sk_X509_NAME_pop_free(ret, X509_NAME_free); + return (NULL); + } + } + return (ret); +} + +void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) +{ + set_client_CA_list(&(s->client_CA), name_list); +} + +void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) +{ + set_client_CA_list(&(ctx->client_CA), name_list); +} STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) - { - return(ctx->client_CA); - } +{ + return (ctx->client_CA); +} STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) - { - if (s->type == SSL_ST_CONNECT) - { /* we are in the client */ - if (((s->version>>8) == SSL3_VERSION_MAJOR) && - (s->s3 != NULL)) - return(s->s3->tmp.ca_names); - else - return(NULL); - } - else - { - if (s->client_CA != NULL) - return(s->client_CA); - else - return(s->ctx->client_CA); - } - } - -static int add_client_CA(STACK_OF(X509_NAME) **sk,X509 *x) - { - X509_NAME *name; - - if (x == NULL) return(0); - if ((*sk == NULL) && ((*sk=sk_X509_NAME_new_null()) == NULL)) - return(0); - - if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL) - return(0); - - if (!sk_X509_NAME_push(*sk,name)) - { - X509_NAME_free(name); - return(0); - } - return(1); - } - -int SSL_add_client_CA(SSL *ssl,X509 *x) - { - return(add_client_CA(&(ssl->client_CA),x)); - } - -int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x) - { - return(add_client_CA(&(ctx->client_CA),x)); - } - -static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b) - { - return(X509_NAME_cmp(*a,*b)); - } - -#ifndef OPENSSL_NO_STDIO -/*! +{ + if (!s->server) { /* we are in the client */ + if (((s->version >> 8) == SSL3_VERSION_MAJOR) && (s->s3 != NULL)) + return (s->s3->tmp.ca_names); + else + return (NULL); + } else { + if (s->client_CA != NULL) + return (s->client_CA); + else + return (s->ctx->client_CA); + } +} + +static int add_client_CA(STACK_OF(X509_NAME) **sk, X509 *x) +{ + X509_NAME *name; + + if (x == NULL) + return (0); + if ((*sk == NULL) && ((*sk = sk_X509_NAME_new_null()) == NULL)) + return (0); + + if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) + return (0); + + if (!sk_X509_NAME_push(*sk, name)) { + X509_NAME_free(name); + return (0); + } + return (1); +} + +int SSL_add_client_CA(SSL *ssl, X509 *x) +{ + return (add_client_CA(&(ssl->client_CA), x)); +} + +int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) +{ + return (add_client_CA(&(ctx->client_CA), x)); +} + +static int xname_cmp(const X509_NAME *const *a, const X509_NAME *const *b) +{ + return (X509_NAME_cmp(*a, *b)); +} + +/** * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; * it doesn't really have anything to do with clients (except that a common use * for a stack of CAs is to send it to the client). Actually, it doesn't have @@ -631,67 +681,62 @@ static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b) * \return a ::STACK containing the certs. */ STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) - { - BIO *in; - X509 *x=NULL; - X509_NAME *xn=NULL; - STACK_OF(X509_NAME) *ret = NULL,*sk; - - sk=sk_X509_NAME_new(xname_cmp); - - in=BIO_new(BIO_s_file_internal()); - - if ((sk == NULL) || (in == NULL)) - { - SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE); - goto err; - } - - if (!BIO_read_filename(in,file)) - goto err; - - for (;;) - { - if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL) - break; - if (ret == NULL) - { - ret = sk_X509_NAME_new_null(); - if (ret == NULL) - { - SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE); - goto err; - } - } - if ((xn=X509_get_subject_name(x)) == NULL) goto err; - /* check for duplicates */ - xn=X509_NAME_dup(xn); - if (xn == NULL) goto err; - if (sk_X509_NAME_find(sk,xn) >= 0) - X509_NAME_free(xn); - else - { - sk_X509_NAME_push(sk,xn); - sk_X509_NAME_push(ret,xn); - } - } - - if (0) - { -err: - if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free); - ret=NULL; - } - if (sk != NULL) sk_X509_NAME_free(sk); - if (in != NULL) BIO_free(in); - if (x != NULL) X509_free(x); - if (ret != NULL) - ERR_clear_error(); - return(ret); - } -#endif - -/*! +{ + BIO *in; + X509 *x = NULL; + X509_NAME *xn = NULL; + STACK_OF(X509_NAME) *ret = NULL, *sk; + + sk = sk_X509_NAME_new(xname_cmp); + + in = BIO_new(BIO_s_file()); + + if ((sk == NULL) || (in == NULL)) { + SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!BIO_read_filename(in, file)) + goto err; + + for (;;) { + if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) + break; + if (ret == NULL) { + ret = sk_X509_NAME_new_null(); + if (ret == NULL) { + SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); + goto err; + } + } + if ((xn = X509_get_subject_name(x)) == NULL) + goto err; + /* check for duplicates */ + xn = X509_NAME_dup(xn); + if (xn == NULL) + goto err; + if (sk_X509_NAME_find(sk, xn) >= 0) + X509_NAME_free(xn); + else { + sk_X509_NAME_push(sk, xn); + sk_X509_NAME_push(ret, xn); + } + } + goto done; + + err: + sk_X509_NAME_pop_free(ret, X509_NAME_free); + ret = NULL; + done: + sk_X509_NAME_free(sk); + BIO_free(in); + X509_free(x); + if (ret != NULL) + ERR_clear_error(); + return (ret); +} + +/** * Add a file of certs to a stack. * \param stack the stack to add to. * \param file the file to add from. All certs in this file that are not @@ -701,56 +746,54 @@ err: */ int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, - const char *file) - { - BIO *in; - X509 *x=NULL; - X509_NAME *xn=NULL; - int ret=1; - int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b); - - oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp); - - in=BIO_new(BIO_s_file_internal()); - - if (in == NULL) - { - SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE); - goto err; - } - - if (!BIO_read_filename(in,file)) - goto err; - - for (;;) - { - if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL) - break; - if ((xn=X509_get_subject_name(x)) == NULL) goto err; - xn=X509_NAME_dup(xn); - if (xn == NULL) goto err; - if (sk_X509_NAME_find(stack,xn) >= 0) - X509_NAME_free(xn); - else - sk_X509_NAME_push(stack,xn); - } - - if (0) - { -err: - ret=0; - } - if(in != NULL) - BIO_free(in); - if(x != NULL) - X509_free(x); - - sk_X509_NAME_set_cmp_func(stack,oldcmp); - - return ret; - } - -/*! + const char *file) +{ + BIO *in; + X509 *x = NULL; + X509_NAME *xn = NULL; + int ret = 1; + int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b); + + oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp); + + in = BIO_new(BIO_s_file()); + + if (in == NULL) { + SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, + ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!BIO_read_filename(in, file)) + goto err; + + for (;;) { + if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) + break; + if ((xn = X509_get_subject_name(x)) == NULL) + goto err; + xn = X509_NAME_dup(xn); + if (xn == NULL) + goto err; + if (sk_X509_NAME_find(stack, xn) >= 0) + X509_NAME_free(xn); + else + sk_X509_NAME_push(stack, xn); + } + + ERR_clear_error(); + goto done; + + err: + ret = 0; + done: + BIO_free(in); + X509_free(x); + (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); + return ret; +} + +/** * Add a directory of certs to a stack. * \param stack the stack to append to. * \param dir the directory to append from. All files in this directory will be @@ -762,51 +805,363 @@ err: */ int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, - const char *dir) - { - OPENSSL_DIR_CTX *d = NULL; - const char *filename; - int ret = 0; - - CRYPTO_w_lock(CRYPTO_LOCK_READDIR); + const char *dir) +{ + OPENSSL_DIR_CTX *d = NULL; + const char *filename; + int ret = 0; - /* Note that a side effect is that the CAs will be sorted by name */ + CRYPTO_w_lock(CRYPTO_LOCK_READDIR); - while((filename = OPENSSL_DIR_read(&d, dir))) - { - char buf[1024]; - int r; + /* Note that a side effect is that the CAs will be sorted by name */ - if(strlen(dir)+strlen(filename)+2 > sizeof buf) - { - SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG); - goto err; - } + while ((filename = OPENSSL_DIR_read(&d, dir))) { + char buf[1024]; + int r; + if (strlen(dir) + strlen(filename) + 2 > sizeof buf) { + SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, + SSL_R_PATH_TOO_LONG); + goto err; + } #ifdef OPENSSL_SYS_VMS - r = BIO_snprintf(buf,sizeof buf,"%s%s",dir,filename); + r = BIO_snprintf(buf, sizeof buf, "%s%s", dir, filename); #else - r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,filename); + r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename); #endif - if (r <= 0 || r >= (int)sizeof(buf)) - goto err; - if(!SSL_add_file_cert_subjects_to_stack(stack,buf)) - goto err; - } - - if (errno) - { - SYSerr(SYS_F_OPENDIR, get_last_sys_error()); - ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); - SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); - goto err; - } - - ret = 1; - -err: - if (d) OPENSSL_DIR_end(&d); - CRYPTO_w_unlock(CRYPTO_LOCK_READDIR); - return ret; - } - + if (r <= 0 || r >= (int)sizeof(buf)) + goto err; + if (!SSL_add_file_cert_subjects_to_stack(stack, buf)) + goto err; + } + + if (errno) { + SYSerr(SYS_F_OPENDIR, get_last_sys_error()); + ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); + SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); + goto err; + } + + ret = 1; + + err: + if (d) + OPENSSL_DIR_end(&d); + CRYPTO_w_unlock(CRYPTO_LOCK_READDIR); + return ret; +} + +/* Add a certificate to a BUF_MEM structure */ + +static int ssl_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) +{ + int n; + unsigned char *p; + + n = i2d_X509(x, NULL); + if (!BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) { + SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); + return 0; + } + p = (unsigned char *)&(buf->data[*l]); + l2n3(n, p); + i2d_X509(x, &p); + *l += n + 3; + + return 1; +} + +/* Add certificate chain to internal SSL BUF_MEM strcuture */ +int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l) +{ + BUF_MEM *buf = s->init_buf; + int i; + + X509 *x; + STACK_OF(X509) *extra_certs; + X509_STORE *chain_store; + + /* TLSv1 sends a chain with nothing in it, instead of an alert */ + if (!BUF_MEM_grow_clean(buf, 10)) { + SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_BUF_LIB); + return 0; + } + + if (!cpk || !cpk->x509) + return 1; + + x = cpk->x509; + + /* + * If we have a certificate specific chain use it, else use parent ctx. + */ + if (cpk->chain) + extra_certs = cpk->chain; + else + extra_certs = s->ctx->extra_certs; + + if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs) + chain_store = NULL; + else if (s->cert->chain_store) + chain_store = s->cert->chain_store; + else + chain_store = s->ctx->cert_store; + + if (chain_store) { + X509_STORE_CTX xs_ctx; + + if (!X509_STORE_CTX_init(&xs_ctx, chain_store, x, NULL)) { + SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_X509_LIB); + return (0); + } + /* + * It is valid for the chain not to be complete (because normally we + * don't include the root cert in the chain). Therefore we deliberately + * ignore the error return from this call. We're not actually verifying + * the cert - we're just building as much of the chain as we can + */ + X509_verify_cert(&xs_ctx); + /* Don't leave errors in the queue */ + ERR_clear_error(); + i = ssl_security_cert_chain(s, xs_ctx.chain, NULL, 0); + if (i != 1) { + X509_STORE_CTX_cleanup(&xs_ctx); + SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); + return 0; + } + for (i = 0; i < sk_X509_num(xs_ctx.chain); i++) { + x = sk_X509_value(xs_ctx.chain, i); + + if (!ssl_add_cert_to_buf(buf, l, x)) { + X509_STORE_CTX_cleanup(&xs_ctx); + return 0; + } + } + X509_STORE_CTX_cleanup(&xs_ctx); + } else { + i = ssl_security_cert_chain(s, extra_certs, x, 0); + if (i != 1) { + SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); + return 0; + } + if (!ssl_add_cert_to_buf(buf, l, x)) + return 0; + for (i = 0; i < sk_X509_num(extra_certs); i++) { + x = sk_X509_value(extra_certs, i); + if (!ssl_add_cert_to_buf(buf, l, x)) + return 0; + } + } + return 1; +} + +/* Build a certificate chain for current certificate */ +int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) +{ + CERT *c = s ? s->cert : ctx->cert; + CERT_PKEY *cpk = c->key; + X509_STORE *chain_store = NULL; + X509_STORE_CTX xs_ctx; + STACK_OF(X509) *chain = NULL, *untrusted = NULL; + X509 *x; + int i, rv = 0; + unsigned long error; + + if (!cpk->x509) { + SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); + goto err; + } + /* Rearranging and check the chain: add everything to a store */ + if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) { + chain_store = X509_STORE_new(); + if (chain_store == NULL) + goto err; + for (i = 0; i < sk_X509_num(cpk->chain); i++) { + x = sk_X509_value(cpk->chain, i); + if (!X509_STORE_add_cert(chain_store, x)) { + error = ERR_peek_last_error(); + if (ERR_GET_LIB(error) != ERR_LIB_X509 || + ERR_GET_REASON(error) != + X509_R_CERT_ALREADY_IN_HASH_TABLE) + goto err; + ERR_clear_error(); + } + } + /* Add EE cert too: it might be self signed */ + if (!X509_STORE_add_cert(chain_store, cpk->x509)) { + error = ERR_peek_last_error(); + if (ERR_GET_LIB(error) != ERR_LIB_X509 || + ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) + goto err; + ERR_clear_error(); + } + } else { + if (c->chain_store) + chain_store = c->chain_store; + else if (s) + chain_store = s->ctx->cert_store; + else + chain_store = ctx->cert_store; + + if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) + untrusted = cpk->chain; + } + + if (!X509_STORE_CTX_init(&xs_ctx, chain_store, cpk->x509, untrusted)) { + SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB); + goto err; + } + /* Set suite B flags if needed */ + X509_STORE_CTX_set_flags(&xs_ctx, + c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS); + + i = X509_verify_cert(&xs_ctx); + if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) { + if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) + ERR_clear_error(); + i = 1; + rv = 2; + } + if (i > 0) + chain = X509_STORE_CTX_get1_chain(&xs_ctx); + if (i <= 0) { + SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); + i = X509_STORE_CTX_get_error(&xs_ctx); + ERR_add_error_data(2, "Verify error:", + X509_verify_cert_error_string(i)); + + X509_STORE_CTX_cleanup(&xs_ctx); + goto err; + } + X509_STORE_CTX_cleanup(&xs_ctx); + /* Remove EE certificate from chain */ + x = sk_X509_shift(chain); + X509_free(x); + if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) { + if (sk_X509_num(chain) > 0) { + /* See if last cert is self signed */ + x = sk_X509_value(chain, sk_X509_num(chain) - 1); + if (X509_get_extension_flags(x) & EXFLAG_SS) { + x = sk_X509_pop(chain); + X509_free(x); + } + } + } + /* + * Check security level of all CA certificates: EE will have been checked + * already. + */ + for (i = 0; i < sk_X509_num(chain); i++) { + x = sk_X509_value(chain, i); + rv = ssl_security_cert(s, ctx, x, 0, 0); + if (rv != 1) { + SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv); + sk_X509_pop_free(chain, X509_free); + rv = 0; + goto err; + } + } + sk_X509_pop_free(cpk->chain, X509_free); + cpk->chain = chain; + if (rv == 0) + rv = 1; + err: + if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) + X509_STORE_free(chain_store); + + return rv; +} + +int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) +{ + X509_STORE **pstore; + if (chain) + pstore = &c->chain_store; + else + pstore = &c->verify_store; + X509_STORE_free(*pstore); + *pstore = store; + if (ref && store) + CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE); + return 1; +} + +static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, + int bits, int nid, void *other, + void *ex) +{ + int level, minbits; + static const int minbits_table[5] = { 80, 112, 128, 192, 256 }; + if (ctx) + level = SSL_CTX_get_security_level(ctx); + else + level = SSL_get_security_level(s); + /* Level 0: anything goes */ + if (level <= 0) + return 1; + if (level > 5) + level = 5; + minbits = minbits_table[level - 1]; + switch (op) { + case SSL_SECOP_CIPHER_SUPPORTED: + case SSL_SECOP_CIPHER_SHARED: + case SSL_SECOP_CIPHER_CHECK: + { + const SSL_CIPHER *c = other; + /* No ciphers below security level */ + if (bits < minbits) + return 0; + /* No unauthenticated ciphersuites */ + if (c->algorithm_auth & SSL_aNULL) + return 0; + /* No MD5 mac ciphersuites */ + if (c->algorithm_mac & SSL_MD5) + return 0; + /* SHA1 HMAC is 160 bits of security */ + if (minbits > 160 && c->algorithm_mac & SSL_SHA1) + return 0; + /* Level 2: no RC4 */ + if (level >= 2 && c->algorithm_enc == SSL_RC4) + return 0; + /* Level 3: forward secure ciphersuites only */ + if (level >= 3 && !(c->algorithm_mkey & (SSL_kEDH | SSL_kEECDH))) + return 0; + break; + } + case SSL_SECOP_VERSION: + /* SSLv3 not allowed on level 2 */ + if (nid <= SSL3_VERSION && level >= 2) + return 0; + /* TLS v1.1 and above only for level 3 */ + if (nid <= TLS1_VERSION && level >= 3) + return 0; + /* TLS v1.2 only for level 4 and above */ + if (nid <= TLS1_1_VERSION && level >= 4) + return 0; + break; + + case SSL_SECOP_COMPRESSION: + if (level >= 2) + return 0; + break; + case SSL_SECOP_TICKET: + if (level >= 3) + return 0; + break; + default: + if (bits < minbits) + return 0; + } + return 1; +} + +int ssl_security(SSL *s, int op, int bits, int nid, void *other) +{ + return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex); +} + +int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other) +{ + return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, + ctx->cert->sec_ex); +}