/* SPDX-License-Identifier: LGPL-2.1-only */ /* * src/ nl-neigh-add.c Add a neighbour * * 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) 2003-2009 Thomas Graf */ #include #include #include #include static int quiet = 0; static void print_usage(void) { printf( "Usage: nl-neigh-add [OPTION]... NEIGHBOUR\n" "\n" "Options\n" " --update-only Do not create neighbour, updates exclusively\n" " --create-only Do not update neighbour if it exists already.\n" " -q, --quiet Do not print informal notifications\n" " -h, --help Show this help\n" " -v, --version Show versioning information\n" "\n" "Neighbour Options\n" " -a, --addr=ADDR Destination address of neighbour\n" " -l, --lladdr=ADDR Link layer address of neighbour\n" " -d, --dev=DEV Device the neighbour is connected to\n" " --state=STATE Neighbour state, (default = permanent)\n" "\n" "Example\n" " nl-neigh-add --create-only --addr=10.0.0.1 --dev=eth0 \\\n" " --lladdr=AA:BB:CC:DD:EE:FF\n" ); exit(0); } int main(int argc, char *argv[]) { struct nl_sock *sock; struct rtnl_neigh *neigh; struct nl_cache *link_cache; struct nl_dump_params dp = { .dp_type = NL_DUMP_LINE, .dp_fd = stdout, }; int err, ok = 0, nlflags = NLM_F_REPLACE | NLM_F_CREATE; sock = nl_cli_alloc_socket(); nl_cli_connect(sock, NETLINK_ROUTE); link_cache = nl_cli_link_alloc_cache(sock); neigh = nl_cli_neigh_alloc(); for (;;) { int c, optidx = 0; enum { ARG_UPDATE_ONLY = 257, ARG_CREATE_ONLY = 258, ARG_STATE, }; static struct option long_opts[] = { { "update-only", 0, 0, ARG_UPDATE_ONLY }, { "create-only", 0, 0, ARG_CREATE_ONLY }, { "quiet", 0, 0, 'q' }, { "help", 0, 0, 'h' }, { "version", 0, 0, 'v' }, { "addr", 1, 0, 'a' }, { "lladdr", 1, 0, 'l' }, { "dev", 1, 0, 'd' }, { "state", 1, 0, ARG_STATE }, { 0, 0, 0, 0 } }; c = getopt_long(argc, argv, "qhva:l:d:", long_opts, &optidx); if (c == -1) break; switch (c) { case ARG_UPDATE_ONLY: nlflags &= ~NLM_F_CREATE; break; case ARG_CREATE_ONLY: nlflags |= NLM_F_EXCL; break; case 'q': quiet = 1; break; case 'h': print_usage(); break; case 'v': nl_cli_print_version(); break; case 'a': ok++; nl_cli_neigh_parse_dst(neigh, optarg); break; case 'l': nl_cli_neigh_parse_lladdr(neigh, optarg); break; case 'd': nl_cli_neigh_parse_dev(neigh, link_cache, optarg); break; case ARG_STATE: nl_cli_neigh_parse_state(neigh, optarg); break; } } if (!ok) print_usage(); if ((err = rtnl_neigh_add(sock, neigh, nlflags)) < 0) nl_cli_fatal(err, "Unable to add neighbour: %s", nl_geterror(err)); if (!quiet) { printf("Added "); nl_object_dump(OBJ_CAST(neigh), &dp); } return 0; }