libnl: /data/src/libnl3/lib/cli/qdisc/pfifo.c Source File

libnl 3.7.0

pfifo.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch>
4 */
5
6 #include <netlink/cli/utils.h>
7 #include <netlink/cli/tc.h>
8 #include <netlink/route/qdisc/fifo.h>
9
10 static void print_usage(void)
11 {
12 printf(
13 "Usage: nl-qdisc-add [...] pfifo [OPTIONS]...\n"
14 "\n"
15 "OPTIONS\n"
16 " --help Show this help text.\n"
17 " --limit=LIMIT Maximum queue length in number of packets.\n"
18 "\n"
19 "EXAMPLE"
20 " # Attach pfifo with a 32 packet limit to eth1\n"
21 " nl-qdisc-add --dev=eth1 --parent=root pfifo --limit=32\n");
22 }
23
24 static void pfifo_parse_argv(struct rtnl_tc *tc, int argc, char **argv)
25 {
26 struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) tc;
27
28 for (;;) {
29 int c, optidx = 0;
30 enum {
31 ARG_LIMIT = 257,
32 };
33 static struct option long_opts[] = {
34 { "help", 0, 0, 'h' },
35 { "limit", 1, 0, ARG_LIMIT },
36 { 0, 0, 0, 0 }
37 };
38
39 c = getopt_long(argc, argv, "h", long_opts, &optidx);
40 if (c == -1)
41 break;
42
43 switch (c) {
44 case 'h':
45 print_usage();
46 return;
47
48 case ARG_LIMIT:
49 rtnl_qdisc_fifo_set_limit(qdisc, nl_cli_parse_u32(optarg));
50 break;
51 }
52 }
53 }
54
55 static struct nl_cli_tc_module pfifo_module =
56 {
57 .tm_name = "pfifo",
58 .tm_type = RTNL_TC_TYPE_QDISC,
59 .tm_parse_argv = pfifo_parse_argv,
60 };
61
62 static void __init pfifo_init(void)
63 {
64 nl_cli_tc_register(&pfifo_module);
65 }
66
67 static void __exit pfifo_exit(void)
68 {
69 nl_cli_tc_unregister(&pfifo_module);
70 }
nl_cli_parse_u32
uint32_t nl_cli_parse_u32(const char *arg)
Parse a text based 32 bit unsigned integer argument.
Definition: utils.c:36
rtnl_qdisc_fifo_set_limit
int rtnl_qdisc_fifo_set_limit(struct rtnl_qdisc *qdisc, int limit)
Set limit of FIFO qdisc.
Definition: fifo.c:100
nl_cli_tc_module
Definition: tc.h:27