pfifo.c

00001 
00002 /*
00003  * src/lib/pfifo.c      pfifo module for CLI lib
00004  *
00005  *      This library is free software; you can redistribute it and/or
00006  *      modify it under the terms of the GNU Lesser General Public
00007  *      License as published by the Free Software Foundation version 2.1
00008  *      of the License.
00009  *
00010  * Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch>
00011  */
00012 
00013 #include <netlink/cli/utils.h>
00014 #include <netlink/cli/tc.h>
00015 #include <netlink/route/qdisc/fifo.h>
00016 
00017 static void print_usage(void)
00018 {
00019         printf(
00020 "Usage: nl-qdisc-add [...] pfifo [OPTIONS]...\n"
00021 "\n"
00022 "OPTIONS\n"
00023 "     --help                Show this help text.\n"
00024 "     --limit=LIMIT         Maximum queue length in number of packets.\n"
00025 "\n"
00026 "EXAMPLE"
00027 "    # Attach pfifo with a 32 packet limit to eth1\n"
00028 "    nl-qdisc-add --dev=eth1 --parent=root pfifo --limit=32\n");
00029 }
00030 
00031 static void pfifo_parse_argv(struct rtnl_tc *tc, int argc, char **argv)
00032 {
00033         struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) tc;
00034 
00035         for (;;) {
00036                 int c, optidx = 0;
00037                 enum {
00038                         ARG_LIMIT = 257,
00039                 };
00040                 static struct option long_opts[] = {
00041                         { "help", 0, 0, 'h' },
00042                         { "limit", 1, 0, ARG_LIMIT },
00043                         { 0, 0, 0, 0 }
00044                 };
00045         
00046                 c = getopt_long(argc, argv, "h", long_opts, &optidx);
00047                 if (c == -1)
00048                         break;
00049 
00050                 switch (c) {
00051                 case 'h':
00052                         print_usage();
00053                         return;
00054 
00055                 case ARG_LIMIT:
00056                         rtnl_qdisc_fifo_set_limit(qdisc, nl_cli_parse_u32(optarg));
00057                         break;
00058                 }
00059         }
00060 }
00061 
00062 static struct nl_cli_tc_module pfifo_module =
00063 {
00064         .tm_name                = "pfifo",
00065         .tm_type                = RTNL_TC_TYPE_QDISC,
00066         .tm_parse_argv          = pfifo_parse_argv,
00067 };
00068 
00069 static void __init pfifo_init(void)
00070 {
00071         nl_cli_tc_register(&pfifo_module);
00072 }
00073 
00074 static void __exit pfifo_exit(void)
00075 {
00076         nl_cli_tc_unregister(&pfifo_module);
00077 }