| /* |
| * src/lib/blackhole.c Blackhole module for CLI lib |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation version 2.1 |
| * of the License. |
| * |
| * Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch> |
| */ |
| |
| #include <netlink/cli/utils.h> |
| #include <netlink/cli/tc.h> |
| |
| static void print_usage(void) |
| { |
| printf( |
| "Usage: nl-qdisc-add [...] blackhole [OPTIONS]...\n" |
| "\n" |
| "OPTIONS\n" |
| " --help Show this help text.\n" |
| "\n" |
| "EXAMPLE" |
| " # Drop all outgoing packets on eth1\n" |
| " nl-qdisc-add --dev=eth1 --parent=root blackhole\n"); |
| } |
| |
| static void blackhole_parse_argv(struct rtnl_tc *tc, int argc, char **argv) |
| { |
| for (;;) { |
| int c, optidx = 0; |
| static struct option long_opts[] = { |
| { "help", 0, 0, 'h' }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| c = getopt_long(argc, argv, "h", long_opts, &optidx); |
| if (c == -1) |
| break; |
| |
| switch (c) { |
| case 'h': |
| print_usage(); |
| return; |
| } |
| } |
| } |
| |
| static struct nl_cli_tc_module blackhole_module = |
| { |
| .tm_name = "blackhole", |
| .tm_type = RTNL_TC_TYPE_QDISC, |
| .tm_parse_argv = blackhole_parse_argv, |
| }; |
| |
| static void __init blackhole_init(void) |
| { |
| nl_cli_tc_register(&blackhole_module); |
| } |
| |
| static void __exit blackhole_exit(void) |
| { |
| nl_cli_tc_unregister(&blackhole_module); |
| } |