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       1                 :            : /*
       2                 :            :  * Copyright (c) 2010, 2011, 2012, 2013, 2015 Nicira, Inc.
       3                 :            :  *
       4                 :            :  * Licensed under the Apache License, Version 2.0 (the "License");
       5                 :            :  * you may not use this file except in compliance with the License.
       6                 :            :  * You may obtain a copy of the License at:
       7                 :            :  *
       8                 :            :  *     http://www.apache.org/licenses/LICENSE-2.0
       9                 :            :  *
      10                 :            :  * Unless required by applicable law or agreed to in writing, software
      11                 :            :  * distributed under the License is distributed on an "AS IS" BASIS,
      12                 :            :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      13                 :            :  * See the License for the specific language governing permissions and
      14                 :            :  * limitations under the License.
      15                 :            :  */
      16                 :            : 
      17                 :            : #include <config.h>
      18                 :            : #include "dummy.h"
      19                 :            : #include <string.h>
      20                 :            : #include "util.h"
      21                 :            : 
      22                 :            : /* Enables support for "dummy" network devices and dpifs, which are useful for
      23                 :            :  * testing.  A client program might call this function if it is designed
      24                 :            :  * specifically for testing or the user enables it on the command line.
      25                 :            :  *
      26                 :            :  * 'arg' is parsed to determine the override level (see the definition of enum
      27                 :            :  * dummy_level).
      28                 :            :  *
      29                 :            :  * There is no strong reason why dummy devices shouldn't always be enabled. */
      30                 :            : void
      31                 :        543 : dummy_enable(const char *arg)
      32                 :            : {
      33                 :            :     enum dummy_level level;
      34                 :            : 
      35 [ +  + ][ -  + ]:        543 :     if (!arg || !arg[0]) {
      36                 :        461 :         level = DUMMY_OVERRIDE_NONE;
      37         [ +  + ]:         82 :     } else if (!strcmp(arg, "system")) {
      38                 :         81 :         level = DUMMY_OVERRIDE_SYSTEM;
      39         [ +  - ]:          1 :     } else if (!strcmp(arg, "override")) {
      40                 :          1 :         level = DUMMY_OVERRIDE_ALL;
      41                 :            :     } else {
      42                 :          0 :         ovs_fatal(0, "%s: unknown dummy level", arg);
      43                 :            :     }
      44                 :            : 
      45                 :        543 :     netdev_dummy_register(level);
      46                 :        543 :     dpif_dummy_register(level);
      47                 :        543 :     timeval_dummy_register();
      48                 :        543 :     ofpact_dummy_enable();
      49                 :        543 : }
      50                 :            :