SSL/TLS record tracing code (backport from HEAD).
[oweals/openssl.git] / ssl / ssl_lib.c
index 617526a66d46685ed95be940c3d31b400cd2ef03..6e1b27c5fae8a2904b7db63a40745883f37e4449 100644 (file)
@@ -263,7 +263,7 @@ int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
 
        sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
                &(ctx->cipher_list_by_id),
-               meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
+               meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ctx->cert);
        if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
                {
                SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
@@ -524,6 +524,11 @@ int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
        return X509_VERIFY_PARAM_set1(ssl->param, vpm);
        }
 
+void SSL_certs_clear(SSL *s)
+       {
+       ssl_cert_clear_certs(s->cert);
+       }
+
 void SSL_free(SSL *s)
        {
        int i;
@@ -1122,6 +1127,21 @@ long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
                if (s->s3)
                        return s->s3->send_connection_binding;
                else return 0;
+       case SSL_CTRL_CERT_FLAGS:
+               return(s->cert->cert_flags|=larg);
+       case SSL_CTRL_CLEAR_CERT_FLAGS:
+               return(s->cert->cert_flags &=~larg);
+
+       case SSL_CTRL_GET_RAW_CIPHERLIST:
+               if (parg)
+                       {
+                       if (s->cert->ciphers_raw == NULL)
+                               return 0;
+                       *(unsigned char **)parg = s->cert->ciphers_raw;
+                       return (int)s->cert->ciphers_rawlen;
+                       }
+               else
+                       return ssl_put_cipher_by_char(s,NULL,NULL);
        default:
                return(s->method->ssl_ctrl(s,cmd,larg,parg));
                }
@@ -1219,6 +1239,10 @@ long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
                        return 0;
                ctx->max_send_fragment = larg;
                return 1;
+       case SSL_CTRL_CERT_FLAGS:
+               return(ctx->cert->cert_flags|=larg);
+       case SSL_CTRL_CLEAR_CERT_FLAGS:
+               return(ctx->cert->cert_flags &=~larg);
        default:
                return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
                }
@@ -1319,7 +1343,7 @@ int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
        STACK_OF(SSL_CIPHER) *sk;
        
        sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
-               &ctx->cipher_list_by_id,str);
+               &ctx->cipher_list_by_id,str, ctx->cert);
        /* ssl_create_cipher_list may return an empty stack if it
         * was unable to find a cipher matching the given rule string
         * (for example if the rule string specifies a cipher which
@@ -1343,7 +1367,7 @@ int SSL_set_cipher_list(SSL *s,const char *str)
        STACK_OF(SSL_CIPHER) *sk;
        
        sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
-               &s->cipher_list_by_id,str);
+               &s->cipher_list_by_id,str, s->cert);
        /* see comment in SSL_CTX_set_cipher_list */
        if (sk == NULL)
                return 0;
@@ -1396,10 +1420,10 @@ int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
        {
        int i,j=0;
        SSL_CIPHER *c;
+       CERT *ct = s->cert;
        unsigned char *q;
-#ifndef OPENSSL_NO_KRB5
-       int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
-#endif /* OPENSSL_NO_KRB5 */
+       /* Set disabled masks for this session */
+       ssl_set_client_disabled(s);
 
        if (sk == NULL) return(0);
        q=p;
@@ -1407,21 +1431,11 @@ int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
        for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
                {
                c=sk_SSL_CIPHER_value(sk,i);
-               /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */
-               if ((c->algorithm_ssl & SSL_TLSV1_2) && 
-                       (TLS1_get_client_version(s) < TLS1_2_VERSION))
+               /* Skip disabled ciphers */
+               if (c->algorithm_ssl & ct->mask_ssl ||
+                       c->algorithm_mkey & ct->mask_k ||
+                       c->algorithm_auth & ct->mask_a)
                        continue;
-#ifndef OPENSSL_NO_KRB5
-               if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
-                   nokrb5)
-                   continue;
-#endif /* OPENSSL_NO_KRB5 */
-#ifndef OPENSSL_NO_PSK
-               /* with PSK there must be client callback set */
-               if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
-                   s->psk_client_callback == NULL)
-                       continue;
-#endif /* OPENSSL_NO_PSK */
                j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
                p+=j;
                }
@@ -1467,6 +1481,16 @@ STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
                sk_SSL_CIPHER_zero(sk);
                }
 
+       if (s->cert->ciphers_raw)
+               OPENSSL_free(s->cert->ciphers_raw);
+       s->cert->ciphers_raw = BUF_memdup(p, num);
+       if (s->cert->ciphers_raw == NULL)
+               {
+               SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
+               goto err;
+               }
+       s->cert->ciphers_rawlen = (size_t)num;
+
        for (i=0; i<num; i+=n)
                {
                /* Check for SCSV */
@@ -1783,7 +1807,7 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
 
        ssl_create_cipher_list(ret->method,
                &ret->cipher_list,&ret->cipher_list_by_id,
-               meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
+               meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, ret->cert);
        if (ret->cipher_list == NULL
            || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
                {
@@ -2034,6 +2058,16 @@ void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
        X509_VERIFY_PARAM_set_depth(ctx->param, depth);
        }
 
+void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb)(SSL *ssl, void *arg), void *arg)
+       {
+       ssl_cert_set_cert_cb(c->cert, cb, arg);
+       }
+
+void SSL_set_cert_cb(SSL *s, int (*cb)(SSL *ssl, void *arg), void *arg)
+       {
+       ssl_cert_set_cert_cb(s->cert, cb, arg);
+       }
+
 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
        {
        CERT_PKEY *cpk;
@@ -2072,21 +2106,21 @@ void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
        have_ecdh_tmp=(c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
 #endif
        cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
-       rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
+       rsa_enc= cpk->valid_flags & CERT_PKEY_VALID;
        rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
        cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
-       rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
+       rsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
        cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
-       dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
+       dsa_sign= cpk->valid_flags & CERT_PKEY_SIGN;
        cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
-       dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
+       dh_rsa=  cpk->valid_flags & CERT_PKEY_VALID;
        dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
        cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
 /* FIX THIS EAY EAY EAY */
-       dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
+       dh_dsa=  cpk->valid_flags & CERT_PKEY_VALID;
        dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
        cpk= &(c->pkeys[SSL_PKEY_ECC]);
-       have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
+       have_ecc_cert= cpk->valid_flags & CERT_PKEY_VALID;
        mask_k=0;
        mask_a=0;
        emask_k=0;
@@ -2168,13 +2202,16 @@ void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
         */
        if (have_ecc_cert)
                {
+               cpk = &c->pkeys[SSL_PKEY_ECC];
+               x = cpk->x509;
                /* This call populates extension flags (ex_flags) */
-               x = (c->pkeys[SSL_PKEY_ECC]).x509;
                X509_check_purpose(x, -1, 0);
                ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
                    (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
                ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
                    (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
+               if (!(cpk->valid_flags & CERT_PKEY_SIGN))
+                       ecdsa_ok = 0;
                ecc_pkey = X509_get_pubkey(x);
                ecc_pkey_size = (ecc_pkey != NULL) ?
                    EVP_PKEY_bits(ecc_pkey) : 0;
@@ -2319,59 +2356,18 @@ int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
 
 #endif
 
-/* THIS NEEDS CLEANING UP */
-static int ssl_get_server_cert_index(SSL *s)
-       {
-       unsigned long alg_k, alg_a;
-
-       alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
-       alg_a = s->s3->tmp.new_cipher->algorithm_auth;
-
-       if (alg_k & (SSL_kECDHr|SSL_kECDHe))
-               {
-               /* we don't need to look at SSL_kEECDH
-                * since no certificate is needed for
-                * anon ECDH and for authenticated
-                * EECDH, the check for the auth
-                * algorithm will set i correctly
-                * NOTE: For ECDH-RSA, we need an ECC
-                * not an RSA cert but for EECDH-RSA
-                * we need an RSA cert. Placing the
-                * checks for SSL_kECDH before RSA
-                * checks ensures the correct cert is chosen.
-                */
-               return SSL_PKEY_ECC;
-               }
-       else if (alg_a & SSL_aECDSA)
-               return SSL_PKEY_ECC;
-       else if (alg_k & SSL_kDHr)
-               return SSL_PKEY_DH_RSA;
-       else if (alg_k & SSL_kDHd)
-               return SSL_PKEY_DH_DSA;
-       else if (alg_a & SSL_aDSS)
-               return SSL_PKEY_DSA_SIGN;
-       else if (alg_a & SSL_aRSA)
-               {
-               if (s->cert->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
-                       return SSL_PKEY_RSA_SIGN;
-               else
-                       return SSL_PKEY_RSA_ENC;
-               }
-       else if (alg_a & SSL_aKRB5)
-               /* VRS something else here? */
-               return -1;
-       else if (alg_a & SSL_aGOST94) 
-               return SSL_PKEY_GOST94;
-       else if (alg_a & SSL_aGOST01)
-               return SSL_PKEY_GOST01;
-       else /* if (alg_a & SSL_aNULL) */
-               {
+static int ssl_get_server_cert_index(const SSL *s)
+       {
+       int idx;
+       idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
+       if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
+               idx = SSL_PKEY_RSA_SIGN;
+       if (idx == -1)
                SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX,ERR_R_INTERNAL_ERROR);
-               return -1;
-               }
+       return idx;
        }
 
-CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
+CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
        {
        CERT *c;
        int i;
@@ -3301,6 +3297,11 @@ int SSL_cache_hit(SSL *s)
        return s->hit;
        }
 
+int SSL_is_server(SSL *s)
+       {
+       return s->server;
+       }
+
 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
 #include "../crypto/bio/bss_file.c"
 #endif