1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * Copyright (c) 2010-2011 Thomas Graf <[email protected]>
4 */
5
6 #include "nl-default.h"
7
8 #include <netlink/cli/utils.h>
9 #include <netlink/cli/tc.h>
10 #include <netlink/route/qdisc/fifo.h>
11
print_usage(void)12 static void print_usage(void)
13 {
14 printf(
15 "Usage: nl-qdisc-add [...] bfifo [OPTIONS]...\n"
16 "\n"
17 "OPTIONS\n"
18 " --help Show this help text.\n"
19 " --limit=LIMIT Maximum queue length in number of bytes.\n"
20 "\n"
21 "EXAMPLE"
22 " # Attach bfifo with a 4KB bytes limit to eth1\n"
23 " nl-qdisc-add --dev=eth1 --parent=root bfifo --limit=4096\n");
24 }
25
bfifo_parse_argv(struct rtnl_tc * tc,int argc,char ** argv)26 static void bfifo_parse_argv(struct rtnl_tc *tc, int argc, char **argv)
27 {
28 struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) tc;
29 int limit;
30
31 for (;;) {
32 int c, optidx = 0;
33 enum {
34 ARG_LIMIT = 257,
35 };
36 static struct option long_opts[] = {
37 { "help", 0, 0, 'h' },
38 { "limit", 1, 0, ARG_LIMIT },
39 { 0, 0, 0, 0 }
40 };
41
42 c = getopt_long(argc, argv, "h", long_opts, &optidx);
43 if (c == -1)
44 break;
45
46 switch (c) {
47 case 'h':
48 print_usage();
49 return;
50
51 case ARG_LIMIT:
52 limit = nl_size2int(optarg);
53 if (limit < 0) {
54 nl_cli_fatal(limit, "Unable to parse bfifo limit "
55 "\"%s\": Invalid format.", optarg);
56 }
57
58 rtnl_qdisc_fifo_set_limit(qdisc, limit);
59 break;
60 }
61 }
62 }
63
64 static struct nl_cli_tc_module bfifo_module =
65 {
66 .tm_name = "bfifo",
67 .tm_type = RTNL_TC_TYPE_QDISC,
68 .tm_parse_argv = bfifo_parse_argv,
69 };
70
bfifo_init(void)71 static void _nl_init bfifo_init(void)
72 {
73 nl_cli_tc_register(&bfifo_module);
74 }
75
bfifo_exit(void)76 static void _nl_exit bfifo_exit(void)
77 {
78 nl_cli_tc_unregister(&bfifo_module);
79 }
80