X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_cert.c;h=a0da7d3741ac112fba250bac6b48168fcf9f2029;hp=0c9bd073784c44f10403c9164162e3f29ae73c14;hb=cfd298b7aef2b095bee8d172a6a40d6c59d1574b;hpb=1d42741a19d31b50b645a6024909e45e9501fb65 diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c index 0c9bd07378..a0da7d3741 100644 --- a/ssl/ssl_cert.c +++ b/ssl/ssl_cert.c @@ -56,7 +56,7 @@ * [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 @@ -73,12 +73,12 @@ * 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 +87,7 @@ * 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 @@ -102,6 +102,11 @@ * 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. @@ -121,31 +126,55 @@ #include #include #include +#ifndef OPENSSL_NO_DH #include +#endif #include #include "ssl_locl.h" int SSL_get_ex_data_X509_STORE_CTX_idx(void) { static volatile int ssl_x509_store_ctx_idx= -1; + int got_write_lock = 0; + + CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); if (ssl_x509_store_ctx_idx < 0) { - /* any write lock will do; usually this branch - * will only be taken once anyway */ + CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); + got_write_lock = 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); } - - CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); } + + if (got_write_lock) + CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); + else + CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); + return ssl_x509_store_ctx_idx; } +void ssl_cert_set_default_md(CERT *cert) + { + /* Set digest values to defaults */ +#ifndef OPENSSL_NO_DSA + cert->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_sha1(); +#endif +#ifndef OPENSSL_NO_RSA + cert->pkeys[SSL_PKEY_RSA_SIGN].digest = EVP_sha1(); + cert->pkeys[SSL_PKEY_RSA_ENC].digest = EVP_sha1(); +#endif +#ifndef OPENSSL_NO_ECDSA + cert->pkeys[SSL_PKEY_ECC].digest = EVP_sha1(); +#endif + } + CERT *ssl_cert_new(void) { CERT *ret; @@ -160,7 +189,7 @@ CERT *ssl_cert_new(void) ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]); ret->references=1; - + ssl_cert_set_default_md(ret); return(ret); } @@ -183,8 +212,10 @@ CERT *ssl_cert_dup(CERT *cert) * if you find that more readable */ ret->valid = cert->valid; - ret->mask = cert->mask; - ret->export_mask = cert->export_mask; + ret->mask_k = cert->mask_k; + ret->mask_a = cert->mask_a; + ret->export_mask_k = cert->export_mask_k; + ret->export_mask_a = cert->export_mask_a; #ifndef OPENSSL_NO_RSA if (cert->rsa_tmp != NULL) @@ -198,7 +229,6 @@ CERT *ssl_cert_dup(CERT *cert) #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) { @@ -232,25 +262,31 @@ CERT *ssl_cert_dup(CERT *cert) #ifndef OPENSSL_NO_ECDH if (cert->ecdh_tmp) { - EC_KEY_up_ref(cert->ecdh_tmp); - ret->ecdh_tmp = 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) + CERT_PKEY *cpk = cert->pkeys + i; + CERT_PKEY *rpk = ret->pkeys + i; + if (cpk->x509 != NULL) { - ret->pkeys[i].x509 = cert->pkeys[i].x509; - CRYPTO_add(&ret->pkeys[i].x509->references, 1, - CRYPTO_LOCK_X509); + rpk->x509 = cpk->x509; + CRYPTO_add(&rpk->x509->references, 1, CRYPTO_LOCK_X509); } - if (cert->pkeys[i].privatekey != NULL) + if (cpk->privatekey != NULL) { - ret->pkeys[i].privatekey = cert->pkeys[i].privatekey; - CRYPTO_add(&ret->pkeys[i].privatekey->references, 1, + rpk->privatekey = cpk->privatekey; + CRYPTO_add(&cpk->privatekey->references, 1, CRYPTO_LOCK_EVP_PKEY); switch(i) @@ -282,16 +318,102 @@ CERT *ssl_cert_dup(CERT *cert) SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG); } } + + 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; + } + } + rpk->valid_flags = 0; + if (cert->pkeys[i].authz != NULL) + { + /* Just copy everything. */ + ret->pkeys[i].authz_length = + cert->pkeys[i].authz_length; + ret->pkeys[i].authz = + OPENSSL_malloc(ret->pkeys[i].authz_length); + if (ret->pkeys[i].authz == NULL) + { + SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); + return(NULL); + } + memcpy(ret->pkeys[i].authz, + cert->pkeys[i].authz, + cert->pkeys[i].authz_length); + } } - /* ret->extra_certs *should* exist, but currently the own certificate - * chain is held inside SSL_CTX */ - ret->references=1; + /* Set digests to defaults. NB: we don't copy existing values as they + * will be set during handshake. + */ + ssl_cert_set_default_md(ret); + /* Peer sigalgs set to NULL as we get these from handshake too */ + ret->peer_sigalgs = NULL; + ret->peer_sigalgslen = 0; + /* Configured sigalgs however we copy across */ + + if (cert->conf_sigalgs) + { + ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen); + if (!ret->conf_sigalgs) + 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) + 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) + 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->ciphers_raw = NULL; return(ret); -#ifndef OPENSSL_NO_DH /* avoid 'unreferenced label' warning if OPENSSL_NO_DH is defined */ +#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH) err: #endif #ifndef OPENSSL_NO_RSA @@ -307,17 +429,44 @@ err: EC_KEY_free(ret->ecdh_tmp); #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); - } + ssl_cert_clear_certs(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; ipkeys + i; + if (cpk->x509) + { + X509_free(cpk->x509); + cpk->x509 = NULL; + } + if (cpk->privatekey) + { + EVP_PKEY_free(cpk->privatekey); + cpk->privatekey = NULL; + } + if (cpk->chain) + { + sk_X509_pop_free(cpk->chain, X509_free); + cpk->chain = NULL; + } +#ifndef OPENSSL_NO_TLSEXT + if (cpk->authz != NULL) + OPENSSL_free(cpk->authz); +#endif + /* Clear all flags apart from explicit sign */ + cpk->valid_flags &= CERT_PKEY_EXPLICIT_SIGN; + } + } void ssl_cert_free(CERT *c) { @@ -349,17 +498,23 @@ void ssl_cert_free(CERT *c) if (c->ecdh_tmp) EC_KEY_free(c->ecdh_tmp); #endif - 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 - } + ssl_cert_clear_certs(c); + if (c->peer_sigalgs) + OPENSSL_free(c->peer_sigalgs); + if (c->conf_sigalgs) + OPENSSL_free(c->conf_sigalgs); + if (c->client_sigalgs) + OPENSSL_free(c->client_sigalgs); + if (c->shared_sigalgs) + OPENSSL_free(c->shared_sigalgs); + if (c->ctypes) + OPENSSL_free(c->ctypes); + if (c->verify_store) + X509_STORE_free(c->verify_store); + if (c->chain_store) + X509_STORE_free(c->chain_store); + if (c->ciphers_raw) + OPENSSL_free(c->ciphers_raw); OPENSSL_free(c); } @@ -391,6 +546,58 @@ int ssl_cert_inst(CERT **o) return(1); } +int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) *chain) + { + CERT_PKEY *cpk = c->key; + if (!cpk) + return 0; + if (cpk->chain) + sk_X509_pop_free(cpk->chain, X509_free); + cpk->chain = chain; + return 1; + } + +int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) *chain) + { + STACK_OF(X509) *dchain; + if (!chain) + return ssl_cert_set0_chain(c, NULL); + dchain = X509_chain_up_ref(chain); + if (!dchain) + return 0; + if (!ssl_cert_set0_chain(c, dchain)) + { + sk_X509_pop_free(dchain, X509_free); + return 0; + } + return 1; + } + +int ssl_cert_add0_chain_cert(CERT *c, X509 *x) + { + CERT_PKEY *cpk = c->key; + if (!cpk) + 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(CERT *c, X509 *x) + { + if (!ssl_cert_add0_chain_cert(c, x)) + return 0; + CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); + return 1; + } + +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; + } SESS_CERT *ssl_sess_cert_new(void) { @@ -472,20 +679,25 @@ 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,s->ctx->cert_store,x,sk)) + if(!X509_STORE_CTX_init(&ctx,verify_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); + /* Set suite B flags if needed */ + X509_STORE_CTX_set_flags(&ctx, tls1_suiteb(s)); #if 0 if (SSL_get_verify_depth(s) >= 0) X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s)); @@ -499,6 +711,10 @@ int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk) 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); @@ -735,6 +951,8 @@ int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, sk_X509_NAME_push(stack,xn); } + ERR_clear_error(); + if (0) { err: @@ -745,7 +963,7 @@ err: if(x != NULL) X509_free(x); - sk_X509_NAME_set_cmp_func(stack,oldcmp); + (void)sk_X509_NAME_set_cmp_func(stack,oldcmp); return ret; } @@ -810,3 +1028,174 @@ err: 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 no_chain; + int i; + + X509 *x; + STACK_OF(X509) *extra_certs; + X509_STORE *chain_store; + + if (cpk) + x = cpk->x509; + else + x = NULL; + + if (s->cert->chain_store) + chain_store = s->cert->chain_store; + else + chain_store = s->ctx->cert_store; + + /* If we have a certificate specific chain use it, else use + * parent ctx. + */ + if (cpk && cpk->chain) + extra_certs = cpk->chain; + else + extra_certs = s->ctx->extra_certs; + + if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs) + no_chain = 1; + else + no_chain = 0; + + /* 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 (x != NULL) + { + if (no_chain) + { + if (!ssl_add_cert_to_buf(buf, l, x)) + return 0; + } + else + { + 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); + } + X509_verify_cert(&xs_ctx); + /* Don't leave errors in the queue */ + ERR_clear_error(); + 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); + } + } + for (i=0; ikey; + X509_STORE_CTX xs_ctx; + STACK_OF(X509) *chain = NULL, *untrusted = NULL; + X509 *x; + int i; + + if (!cpk->x509) + { + SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); + return 0; + } + + if (c->chain_store) + chain_store = c->chain_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); + return 0; + } + /* 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) + chain = X509_STORE_CTX_get1_chain(&xs_ctx); + X509_STORE_CTX_cleanup(&xs_ctx); + if (i <= 0) + { + SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); + return 0; + } + if (cpk->chain) + sk_X509_pop_free(cpk->chain, X509_free); + /* Remove EE certificate from chain */ + x = sk_X509_shift(chain); + X509_free(x); + if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) + { + x = sk_X509_pop(chain); + X509_free(x); + } + cpk->chain = chain; + + return 1; + } + +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; + if (*pstore) + X509_STORE_free(*pstore); + *pstore = store; + if (ref && store) + CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE); + return 1; + } +