If cipher list contains a match for an explicit ciphersuite only match that
[openssl.git] / ssl / ssl_ciph.c
index 5f9ce0d..dd4c956 100644 (file)
@@ -515,7 +515,8 @@ static void ssl_cipher_collect_aliases(SSL_CIPHER **ca_list,
        *ca_curr = NULL;        /* end of list */
        }
 
-static void ssl_cipher_apply_rule(unsigned long algorithms, unsigned long mask,
+static void ssl_cipher_apply_rule(unsigned long cipher_id,
+               unsigned long algorithms, unsigned long mask,
                unsigned long algo_strength, unsigned long mask_strength,
                int rule, int strength_bits, CIPHER_ORDER *co_list,
                CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
@@ -541,11 +542,19 @@ static void ssl_cipher_apply_rule(unsigned long algorithms, unsigned long mask,
 
                cp = curr->cipher;
 
+               /* If explicit cipher suite match that one only */
+
+               if (cipher_id)
+                       {
+                       if (cp->id != cipher_id)
+                               continue;
+                       }
+
                /*
                 * Selection criteria is either the number of strength_bits
                 * or the algorithm used.
                 */
-               if (strength_bits == -1)
+               else if (strength_bits == -1)
                        {
                        ma = mask & cp->algorithms;
                        ma_s = mask_strength & cp->algo_strength;
@@ -658,7 +667,7 @@ static int ssl_cipher_strength_sort(CIPHER_ORDER *co_list,
         */
        for (i = max_strength_bits; i >= 0; i--)
                if (number_uses[i] > 0)
-                       ssl_cipher_apply_rule(0, 0, 0, 0, CIPHER_ORD, i,
+                       ssl_cipher_apply_rule(0, 0, 0, 0, 0, CIPHER_ORD, i,
                                        co_list, head_p, tail_p);
 
        OPENSSL_free(number_uses);
@@ -672,6 +681,7 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
        unsigned long algorithms, mask, algo_strength, mask_strength;
        const char *l, *start, *buf;
        int j, multi, found, rule, retval, ok, buflen;
+       unsigned long cipher_id;
        char ch;
 
        retval = 1;
@@ -761,6 +771,7 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
                         * use strcmp(), because buf is not '\0' terminated.)
                         */
                         j = found = 0;
+                        cipher_id = 0;
                         while (ca_list[j])
                                {
                                if (!strncmp(buf, ca_list[j]->name, buflen) &&
@@ -775,6 +786,12 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
                        if (!found)
                                break;  /* ignore this entry */
 
+                       if (ca_list[j]->valid)
+                               {
+                               cipher_id = ca_list[j]->id;
+                               break;
+                               }
+
                        /* New algorithms:
                         *  1 - any old restrictions apply outside new mask
                         *  2 - any new restrictions apply outside old mask
@@ -818,7 +835,7 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
                        }
                else if (found)
                        {
-                       ssl_cipher_apply_rule(algorithms, mask,
+                       ssl_cipher_apply_rule(cipher_id, algorithms, mask,
                                algo_strength, mask_strength, rule, -1,
                                co_list, head_p, tail_p);
                        }