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      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 (at) 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 }
     79