Home | History | Annotate | Download | only in src 
      1 /*
      2  * src/nl-class-list.c     List Traffic Classes
      3  *
      4  *	This library is free software; you can redistribute it and/or
      5  *	modify it under the terms of the GNU Lesser General Public
      6  *	License as published by the Free Software Foundation version 2.1
      7  *	of the License.
      8  *
      9  * Copyright (c) 2010 Thomas Graf <tgraf (at) suug.ch>
     10  */
     11 
     12 #include <netlink/cli/utils.h>
     13 #include <netlink/cli/tc.h>
     14 #include <netlink/cli/class.h>
     15 #include <netlink/cli/link.h>
     16 
     17 static struct nl_sock *sock;
     18 
     19 static struct nl_dump_params params = {
     20 	.dp_type = NL_DUMP_LINE,
     21 };
     22 
     23 static void print_usage(void)
     24 {
     25 	printf(
     26 	"Usage: nl-class-list [OPTION]...\n"
     27 	"\n"
     28 	"OPTIONS\n"
     29 	"     --details         Show details\n"
     30 	"     --stats           Show statistics\n"
     31 	" -h, --help            Show this help\n"
     32 	" -v, --version         Show versioning information\n"
     33 	"\n"
     34 	" -d, --dev=DEV         Device the class is attached to. (default: all)\n"
     35 	" -p, --parent=ID       Identifier of parent class.\n"
     36 	" -i, --id=ID           Identifier.\n"
     37 	" -k, --kind=NAME       Kind of class (e.g. pfifo_fast)\n"
     38 	"\n"
     39 	"EXAMPLE\n"
     40 	"    # Display statistics of all classes on eth0\n"
     41 	"    $ nl-class-list --stats --dev=eth0\n"
     42 	"\n"
     43 	);
     44 	exit(0);
     45 }
     46 
     47 static void __dump_class(int ifindex, struct rtnl_class *filter)
     48 {
     49 	struct nl_cache *cache;
     50 
     51 	cache = nl_cli_class_alloc_cache(sock, ifindex);
     52 	nl_cache_dump_filter(cache, &params, OBJ_CAST(filter));
     53 }
     54 
     55 static void dump_class(struct nl_object *obj, void *arg)
     56 {
     57 	struct rtnl_link *link = nl_object_priv(obj);
     58 
     59 	__dump_class(rtnl_link_get_ifindex(link), arg);
     60 }
     61 
     62 int main(int argc, char *argv[])
     63 {
     64 	struct rtnl_class *class;
     65 	struct rtnl_tc *tc;
     66 	struct nl_cache *link_cache;
     67 	int ifindex;
     68 
     69 	sock = nl_cli_alloc_socket();
     70 	nl_cli_connect(sock, NETLINK_ROUTE);
     71 	link_cache = nl_cli_link_alloc_cache(sock);
     72  	class = nl_cli_class_alloc();
     73 	tc = (struct rtnl_tc *) class;
     74 
     75 	params.dp_fd = stdout;
     76 
     77 	for (;;) {
     78 		int c, optidx = 0;
     79 		enum {
     80 			ARG_DETAILS = 257,
     81 			ARG_STATS = 258,
     82 		};
     83 		static struct option long_opts[] = {
     84 			{ "details", 0, 0, ARG_DETAILS },
     85 			{ "stats", 0, 0, ARG_STATS },
     86 			{ "help", 0, 0, 'h' },
     87 			{ "version", 0, 0, 'v' },
     88 			{ "dev", 1, 0, 'd' },
     89 			{ "parent", 1, 0, 'p' },
     90 			{ "id", 1, 0, 'i' },
     91 			{ "kind", 1, 0, 'k' },
     92 			{ 0, 0, 0, 0 }
     93 		};
     94 
     95 		c = getopt_long(argc, argv, "hvd:p:i:k:", long_opts, &optidx);
     96 		if (c == -1)
     97 			break;
     98 
     99 		switch (c) {
    100 		case ARG_DETAILS: params.dp_type = NL_DUMP_DETAILS; break;
    101 		case ARG_STATS: params.dp_type = NL_DUMP_STATS; break;
    102 		case 'h': print_usage(); break;
    103 		case 'v': nl_cli_print_version(); break;
    104 		case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break;
    105 		case 'p': nl_cli_tc_parse_parent(tc, optarg); break;
    106 		case 'i': nl_cli_tc_parse_handle(tc, optarg, 0); break;
    107 		case 'k': nl_cli_tc_parse_kind(tc, optarg); break;
    108 		}
    109  	}
    110 
    111 	if ((ifindex = rtnl_tc_get_ifindex(tc)))
    112 		__dump_class(ifindex, class);
    113 	 else
    114 		nl_cache_foreach(link_cache, dump_class, class);
    115 
    116 	return 0;
    117 }
    118