PKCS#8 support for alternative PRFs.
[openssl.git] / ssl / ssl_cert.c
index 59a8544..2c66460 100644 (file)
@@ -321,36 +321,32 @@ CERT *ssl_cert_dup(CERT *cert)
 
                if (cpk->chain)
                        {
-                       int j;
-                       rpk->chain = sk_X509_dup(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;
                                }
-                       for (j = 0; j < sk_X509_num(rpk->chain); j++)
-                               {
-                               X509 *x = sk_X509_value(rpk->chain, j);
-                               CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
-                               }
                        }
                rpk->valid_flags = 0;
-                if (cert->pkeys[i].authz != NULL)
+#ifndef OPENSSL_NO_TLSEXT
+               if (cert->pkeys[i].serverinfo != 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)
+                       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);
-                               return(NULL);
+                               return NULL;
                                }
-                       memcpy(ret->pkeys[i].authz,
-                              cert->pkeys[i].authz,
-                              cert->pkeys[i].authz_length);
+                       ret->pkeys[i].serverinfo_length =
+                               cert->pkeys[i].serverinfo_length;
+                       memcpy(ret->pkeys[i].serverinfo,
+                              cert->pkeys[i].serverinfo,
+                              cert->pkeys[i].serverinfo_length);
                        }
+#endif
                }
        
        ret->references=1;
@@ -403,6 +399,20 @@ CERT *ssl_cert_dup(CERT *cert)
        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);
        
 #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
@@ -452,10 +462,15 @@ void ssl_cert_clear_certs(CERT *c)
                        cpk->chain = NULL;
                        }
 #ifndef OPENSSL_NO_TLSEXT
-                if (cpk->authz != NULL)
-                       OPENSSL_free(cpk->authz);
+               if (cpk->serverinfo)
+                       {
+                       OPENSSL_free(cpk->serverinfo);
+                       cpk->serverinfo = NULL;
+                       cpk->serverinfo_length = 0;
+                       }
 #endif
-               cpk->valid_flags = 0;
+               /* Clear all flags apart from explicit sign */
+               cpk->valid_flags &= CERT_PKEY_EXPLICIT_SIGN;
                }
        }
 
@@ -500,6 +515,12 @@ void ssl_cert_free(CERT *c)
                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);
        }
 
@@ -545,18 +566,11 @@ int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) *chain)
 int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) *chain)
        {
        STACK_OF(X509) *dchain;
-       X509 *x;
-       int i;
        if (!chain)
                return ssl_cert_set0_chain(c, NULL);
-       dchain = sk_X509_dup(chain);
+       dchain = X509_chain_up_ref(chain);
        if (!dchain)
                return 0;
-       for (i = 0; i < sk_X509_num(dchain); i++)
-               {
-               x = sk_X509_value(dchain, i);
-               CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
-               }
        if (!ssl_cert_set0_chain(c, dchain))
                {
                sk_X509_pop_free(dchain, X509_free);
@@ -585,6 +599,60 @@ int ssl_cert_add1_chain_cert(CERT *c, X509 *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->key + 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;
@@ -671,17 +739,25 @@ 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);
                }
+       /* 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));
@@ -1042,12 +1118,18 @@ int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l)
 
        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.
         */
@@ -1078,7 +1160,7 @@ int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l)
                        {
                        X509_STORE_CTX xs_ctx;
 
-                       if (!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,x,NULL))
+                       if (!X509_STORE_CTX_init(&xs_ctx,chain_store,x,NULL))
                                {
                                SSLerr(SSL_F_SSL_ADD_CERT_CHAIN,ERR_R_X509_LIB);
                                return(0);
@@ -1109,3 +1191,112 @@ int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l)
        return 1;
        }
 
+/* Build a certificate chain for current certificate */
+int ssl_build_cert_chain(CERT *c, X509_STORE *chain_store, int flags)
+       {
+       CERT_PKEY *cpk = c->key;
+       X509_STORE_CTX xs_ctx;
+       STACK_OF(X509) *chain = NULL, *untrusted = NULL;
+       X509 *x;
+       int i, rv = 0;
+
+       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)
+                       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))
+                               goto err;
+                       }
+               /* Add EE cert too: it might be self signed */
+               if (!X509_STORE_add_cert(chain_store, cpk->x509))
+                       goto err;
+               }
+       else
+               {
+               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);
+               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)
+               {
+               ERR_clear_error();
+               i = 1;
+               }
+       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);
+       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)
+               {
+               if (sk_X509_num(chain) > 0)
+                       {
+                       /* See if last cert is self signed */
+                       x = sk_X509_value(chain, sk_X509_num(chain) - 1);
+                       X509_check_purpose(x, -1, 0);
+                       if (x->ex_flags & EXFLAG_SS)
+                               {
+                               x = sk_X509_pop(chain);
+                               X509_free(x);
+                               }
+                       }
+               }
+       cpk->chain = chain;
+       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;
+       if (*pstore)
+               X509_STORE_free(*pstore);
+       *pstore = store;
+       if (ref && store)
+               CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE);
+       return 1;
+       }
+