X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_cert.c;h=e8044125eba13d0a2b907d1c12fd2a00917bbfe1;hp=fb8a9f9716c5dadd6585056213ca950cd9bb532f;hb=c001ce33137993a0c4ff15060ed1639826bfca0b;hpb=984d6c6052169bcae8010de33f7796e455536d61 diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c index fb8a9f9716..e8044125eb 100644 --- a/ssl/ssl_cert.c +++ b/ssl/ssl_cert.c @@ -1,6 +1,3 @@ -/* - * ! \file ssl/ssl_cert.c - */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * @@ -124,7 +121,7 @@ #endif #include "internal/o_dir.h" -#include +#include #include #include #include @@ -195,54 +192,15 @@ CERT *ssl_cert_dup(CERT *cert) 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; -#endif - #ifndef OPENSSL_NO_DH 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 = cert->dh_tmp; + EVP_PKEY_up_ref(ret->dh_tmp); } ret->dh_tmp_cb = cert->dh_tmp_cb; ret->dh_tmp_auto = cert->dh_tmp_auto; #endif -#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++) { CERT_PKEY *cpk = cert->pkeys + i; CERT_PKEY *rpk = ret->pkeys + i; @@ -253,7 +211,7 @@ CERT *ssl_cert_dup(CERT *cert) if (cpk->privatekey != NULL) { rpk->privatekey = cpk->privatekey; - CRYPTO_add(&cpk->privatekey->references, 1, CRYPTO_LOCK_EVP_PKEY); + EVP_PKEY_up_ref(cpk->privatekey); } if (cpk->chain) { @@ -282,7 +240,7 @@ CERT *ssl_cert_dup(CERT *cert) /* Configured sigalgs copied across */ if (cert->conf_sigalgs) { ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen); - if (!ret->conf_sigalgs) + if (ret->conf_sigalgs == NULL) goto err; memcpy(ret->conf_sigalgs, cert->conf_sigalgs, cert->conf_sigalgslen); ret->conf_sigalgslen = cert->conf_sigalgslen; @@ -291,7 +249,7 @@ CERT *ssl_cert_dup(CERT *cert) if (cert->client_sigalgs) { ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen); - if (!ret->client_sigalgs) + if (ret->client_sigalgs == NULL) goto err; memcpy(ret->client_sigalgs, cert->client_sigalgs, cert->client_sigalgslen); @@ -303,7 +261,7 @@ CERT *ssl_cert_dup(CERT *cert) /* Copy any custom client certificate types */ if (cert->ctypes) { ret->ctypes = OPENSSL_malloc(cert->ctype_num); - if (!ret->ctypes) + if (ret->ctypes == NULL) goto err; memcpy(ret->ctypes, cert->ctypes, cert->ctype_num); ret->ctype_num = cert->ctype_num; @@ -315,13 +273,12 @@ CERT *ssl_cert_dup(CERT *cert) ret->cert_cb_arg = cert->cert_cb_arg; if (cert->verify_store) { - CRYPTO_add(&cert->verify_store->references, 1, - CRYPTO_LOCK_X509_STORE); + X509_STORE_up_ref(cert->verify_store); ret->verify_store = cert->verify_store; } if (cert->chain_store) { - CRYPTO_add(&cert->chain_store->references, 1, CRYPTO_LOCK_X509_STORE); + X509_STORE_up_ref(cert->chain_store); ret->chain_store = cert->chain_store; } @@ -333,13 +290,13 @@ CERT *ssl_cert_dup(CERT *cert) 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); + ret->psk_identity_hint = OPENSSL_strdup(cert->psk_identity_hint); if (ret->psk_identity_hint == NULL) goto err; } - +#endif return (ret); err: @@ -377,26 +334,13 @@ void ssl_cert_free(CERT *c) return; i = CRYPTO_add(&c->references, -1, CRYPTO_LOCK_SSL_CERT); -#ifdef REF_PRINT - REF_PRINT("CERT", c); -#endif + REF_PRINT_COUNT("CERT", c); if (i > 0) return; -#ifdef REF_CHECK - if (i < 0) { - fprintf(stderr, "ssl_cert_free, bad reference count\n"); - abort(); /* ok */ - } -#endif + REF_ASSERT_ISNT(i < 0); -#ifndef OPENSSL_NO_RSA - RSA_free(c->rsa_tmp); -#endif #ifndef OPENSSL_NO_DH - DH_free(c->dh_tmp); -#endif -#ifndef OPENSSL_NO_EC - EC_KEY_free(c->ecdh_tmp); + EVP_PKEY_free(c->dh_tmp); #endif ssl_cert_clear_certs(c); @@ -531,6 +475,7 @@ int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) int i; X509_STORE *verify_store; X509_STORE_CTX ctx; + X509_VERIFY_PARAM *param; if (s->cert->verify_store) verify_store = s->cert->verify_store; @@ -545,10 +490,16 @@ int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); return (0); } + param = X509_STORE_CTX_get0_param(&ctx); + /* 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); + /* Verify via DANE if enabled */ + if (DANETLS_ENABLED(&s->dane)) + X509_STORE_CTX_set0_dane(&ctx, &s->dane); + /* * 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 @@ -557,9 +508,9 @@ 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. + * Anything non-default in "s->param" should overwrite anything in the ctx. */ - X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param); + X509_VERIFY_PARAM_set1(param, s->param); if (s->verify_callback) X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback); @@ -579,6 +530,19 @@ int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) } s->verify_result = ctx.error; + sk_X509_pop_free(s->verified_chain, X509_free); + s->verified_chain = NULL; + if (X509_STORE_CTX_get_chain(&ctx) != NULL) { + s->verified_chain = X509_STORE_CTX_get1_chain(&ctx); + if (s->verified_chain == NULL) { + SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); + i = 0; + } + } + + /* Move peername from the store context params to the SSL handle's */ + X509_VERIFY_PARAM_move_peername(s->param, param); + X509_STORE_CTX_cleanup(&ctx); return (i); @@ -625,7 +589,7 @@ STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) 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->server) { /* we are in the client */ if (((s->version >> 8) == SSL3_VERSION_MAJOR) && (s->s3 != NULL)) return (s->s3->tmp.ca_names); else @@ -667,11 +631,21 @@ 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) +static int xname_sk_cmp(const X509_NAME *const *a, const X509_NAME *const *b) { return (X509_NAME_cmp(*a, *b)); } +static int xname_cmp(const X509_NAME *a, const X509_NAME *b) +{ + return X509_NAME_cmp(a, b); +} + +static unsigned long xname_hash(const X509_NAME *a) +{ + return X509_NAME_hash((X509_NAME *)a); +} + /** * 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 @@ -682,16 +656,14 @@ static int xname_cmp(const X509_NAME *const *a, const X509_NAME *const *b) */ STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) { - BIO *in; + BIO *in = BIO_new(BIO_s_file()); X509 *x = NULL; X509_NAME *xn = NULL; - STACK_OF(X509_NAME) *ret = NULL, *sk; + STACK_OF(X509_NAME) *ret = NULL; + LHASH_OF(X509_NAME) *name_hash = + lh_X509_NAME_new(xname_hash, xname_cmp); - sk = sk_X509_NAME_new(xname_cmp); - - in = BIO_new(BIO_s_file_internal()); - - if ((sk == NULL) || (in == NULL)) { + if ((name_hash == NULL) || (in == NULL)) { SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); goto err; } @@ -715,10 +687,11 @@ STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) xn = X509_NAME_dup(xn); if (xn == NULL) goto err; - if (sk_X509_NAME_find(sk, xn) >= 0) + if (lh_X509_NAME_retrieve(name_hash, xn) != NULL) { + /* Duplicate. */ X509_NAME_free(xn); - else { - sk_X509_NAME_push(sk, xn); + } else { + lh_X509_NAME_insert(name_hash, xn); sk_X509_NAME_push(ret, xn); } } @@ -728,9 +701,9 @@ STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) sk_X509_NAME_pop_free(ret, X509_NAME_free); ret = NULL; done: - sk_X509_NAME_free(sk); BIO_free(in); X509_free(x); + lh_X509_NAME_free(name_hash); if (ret != NULL) ERR_clear_error(); return (ret); @@ -754,9 +727,9 @@ int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, 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); + oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_sk_cmp); - in = BIO_new(BIO_s_file_internal()); + in = BIO_new(BIO_s_file()); if (in == NULL) { SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, @@ -914,6 +887,12 @@ int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l) 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(); @@ -968,7 +947,7 @@ int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) /* 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) + if (chain_store == NULL) goto err; for (i = 0; i < sk_X509_num(cpk->chain); i++) { x = sk_X509_value(cpk->chain, i); @@ -1076,7 +1055,7 @@ int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) X509_STORE_free(*pstore); *pstore = store; if (ref && store) - CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE); + X509_STORE_up_ref(store); return 1; } @@ -1090,9 +1069,16 @@ static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, level = SSL_CTX_get_security_level(ctx); else level = SSL_get_security_level(s); - /* Level 0: anything goes */ - if (level <= 0) + + if (level <= 0) { + /* + * No EDH keys weaker than 1024-bits even at level 0, otherwise, + * anything goes. + */ + if (op == SSL_SECOP_TMP_DH && bits < 80) + return 0; return 1; + } if (level > 5) level = 5; minbits = minbits_table[level - 1]; @@ -1123,15 +1109,21 @@ static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, 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; + if (!SSL_IS_DTLS(s)) { + /* SSLv3 not allowed at 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; + } else { + /* DTLS v1.2 only for level 4 and above */ + if (DTLS_VERSION_LT(nid, DTLS1_2_VERSION) && level >= 4) + return 0; + } break; case SSL_SECOP_COMPRESSION: