1
2/*
3 * src/lib/pfifo.c     	pfifo module for CLI lib
4 *
5 *	This library is free software; you can redistribute it and/or
6 *	modify it under the terms of the GNU Lesser General Public
7 *	License as published by the Free Software Foundation version 2.1
8 *	of the License.
9 *
10 * Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch>
11 */
12
13#include <netlink/cli/utils.h>
14#include <netlink/cli/tc.h>
15#include <netlink/route/qdisc/fifo.h>
16
17static void print_usage(void)
18{
19	printf(
20"Usage: nl-qdisc-add [...] pfifo [OPTIONS]...\n"
21"\n"
22"OPTIONS\n"
23"     --help                Show this help text.\n"
24"     --limit=LIMIT         Maximum queue length in number of packets.\n"
25"\n"
26"EXAMPLE"
27"    # Attach pfifo with a 32 packet limit to eth1\n"
28"    nl-qdisc-add --dev=eth1 --parent=root pfifo --limit=32\n");
29}
30
31static void pfifo_parse_argv(struct rtnl_tc *tc, int argc, char **argv)
32{
33	struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) tc;
34
35	for (;;) {
36		int c, optidx = 0;
37		enum {
38			ARG_LIMIT = 257,
39		};
40		static struct option long_opts[] = {
41			{ "help", 0, 0, 'h' },
42			{ "limit", 1, 0, ARG_LIMIT },
43			{ 0, 0, 0, 0 }
44		};
45
46		c = getopt_long(argc, argv, "h", long_opts, &optidx);
47		if (c == -1)
48			break;
49
50		switch (c) {
51		case 'h':
52			print_usage();
53			return;
54
55		case ARG_LIMIT:
56			rtnl_qdisc_fifo_set_limit(qdisc, nl_cli_parse_u32(optarg));
57			break;
58		}
59 	}
60}
61
62static struct nl_cli_tc_module pfifo_module =
63{
64	.tm_name		= "pfifo",
65	.tm_type		= RTNL_TC_TYPE_QDISC,
66	.tm_parse_argv		= pfifo_parse_argv,
67};
68
69static void __init pfifo_init(void)
70{
71	nl_cli_tc_register(&pfifo_module);
72}
73
74static void __exit pfifo_exit(void)
75{
76	nl_cli_tc_unregister(&pfifo_module);
77}
78