libnl  3.2.24-rc1
cgroup.c
1 /*
2  * src/cls/cgroup.c Control Groups Classifier
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation version 2 of the License.
7  *
8  * Copyright (c) 2009 Thomas Graf <tgraf@suug.ch>
9  */
10 
11 #include "utils.h"
12 #include <netlink/route/cls/cgroup.h>
13 #include <netlink/route/cls/ematch.h>
14 
15 static void print_usage(void)
16 {
17  printf(
18 "Usage: ... cgroup [OPTIONS]...\n"
19 "\n"
20 "Options\n"
21 " -h, --help Show this help.\n"
22 " -e, --ematch=MATCH Extended match (See --ematch help).\n"
23 " -c, --classid=HANDLE Target class to classify matching packets to.\n"
24  );
25  exit(0);
26 }
27 
28 static void basic_parse_argv(struct rtnl_cls *cls, int argc, char **argv)
29 {
30  for (;;) {
31  int c, optidx = 0;
32  static struct option long_opts[] = {
33  { "help", 0, 0, 'h' },
34  { "ematch", 1, 0, 'e' },
35  { "classid", 1, 0, 'c' },
36  { 0, 0, 0, 0 }
37  };
38 
39  c = getopt_long(argc, argv, "he:c:", long_opts, &optidx);
40  if (c == -1)
41  break;
42 
43  switch (c) {
44  case '?':
45  exit(NLE_INVAL);
46 
47  case 'h':
48  print_usage();
49 
50 #if 0
51  case 'e':
52  if ((err = parse_ematch_syntax(optarg, &tree)) < 0)
53  fatal(err, "Error while parsing ematch: %s",
54  nl_geterror(err));
55 
56  if ((err = rtnl_basic_set_ematch(cls, tree)) < 0)
57  fatal(err, "Unable to set ematch: %s",
58  nl_geterror(err));
59  break;
60 #endif
61  }
62  }
63 }
64 
65 static struct cls_module cgroup_module = {
66  .name = "cgroup",
67  .parse_argv = basic_parse_argv,
68 };
69 
70 static void __init cgroup_init(void)
71 {
72  register_cls_module(&cgroup_module);
73 }
74 
75 static void __exit cgroup_exit(void)
76 {
77  unregister_cls_module(&cgroup_module);
78 }