ktls: rm kTLS request field on config (#3816)

Author: toidiu

tests/unit/s2n_ktls_mode_test.c

@@ -21,36 +21,6 @@ int main(int argc, char **argv)
 {
     BEGIN_TEST();
 
-    /* Default config kTLS mode */
-    {
-        DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
-        EXPECT_NOT_NULL(config);
-        EXPECT_FALSE(config->ktls_send_requested);
-        EXPECT_FALSE(config->ktls_recv_requested);
-    };
-
-    /* Request config kTLS mode */
-    {
-        DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
-        EXPECT_NOT_NULL(config);
-
-        EXPECT_SUCCESS(s2n_config_set_ktls_mode(config, S2N_KTLS_MODE_SEND));
-        EXPECT_TRUE(config->ktls_send_requested);
-        EXPECT_FALSE(config->ktls_recv_requested);
-
-        EXPECT_SUCCESS(s2n_config_set_ktls_mode(config, S2N_KTLS_MODE_RECV));
-        EXPECT_FALSE(config->ktls_send_requested);
-        EXPECT_TRUE(config->ktls_recv_requested);
-
-        EXPECT_SUCCESS(s2n_config_set_ktls_mode(config, S2N_KTLS_MODE_DISABLED));
-        EXPECT_FALSE(config->ktls_send_requested);
-        EXPECT_FALSE(config->ktls_recv_requested);
-
-        EXPECT_SUCCESS(s2n_config_set_ktls_mode(config, S2N_KTLS_MODE_DUPLEX));
-        EXPECT_TRUE(config->ktls_send_requested);
-        EXPECT_TRUE(config->ktls_recv_requested);
-    };
-
     /* Default connection kTLS mode */
     {
         DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT),

tls/s2n_config.c

@@ -1072,30 +1072,3 @@ int s2n_config_set_recv_multi_record(struct s2n_config *config, bool enabled)
 
     return S2N_SUCCESS;
 }
-
-/* Indicates if the connection should attempt to enable kTLS. */
-int s2n_config_set_ktls_mode(struct s2n_config *config, s2n_ktls_mode ktls_mode)
-{
-    POSIX_ENSURE_REF(config);
-
-    switch (ktls_mode) {
-        case S2N_KTLS_MODE_DUPLEX:
-            config->ktls_recv_requested = true;
-            config->ktls_send_requested = true;
-            break;
-        case S2N_KTLS_MODE_SEND:
-            config->ktls_recv_requested = false;
-            config->ktls_send_requested = true;
-            break;
-        case S2N_KTLS_MODE_RECV:
-            config->ktls_recv_requested = true;
-            config->ktls_send_requested = false;
-            break;
-        case S2N_KTLS_MODE_DISABLED:
-            config->ktls_recv_requested = false;
-            config->ktls_send_requested = false;
-            break;
-    }
-
-    return S2N_SUCCESS;
-}

tls/s2n_config.h

@@ -101,12 +101,6 @@ struct s2n_config {
      */
     unsigned recv_multi_record : 1;
 
-    /* Depending on OS and configuration it is possible to use kTLS.
-     *
-     * This option indicates if connections should attempt to use kTLS. */
-    unsigned ktls_send_requested : 1;
-    unsigned ktls_recv_requested : 1;
-
     struct s2n_dh_params *dhparams;
     /* Needed until we can deprecate s2n_config_add_cert_chain_and_key. This is
      * used to release memory allocated only in the deprecated API that the application