2 * ip.c "ip" utility frontend.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
14 * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
22 #include <sys/socket.h>
23 #include <netinet/in.h>
29 #include "ip_common.h"
31 int preferred_family = AF_UNSPEC;
34 int resolve_hosts = 0;
38 char *batch_file = NULL;
40 struct rtnl_handle rth = { .fd = -1 };
42 static void usage(void) __attribute__((noreturn));
44 static void usage(void)
47 "Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }\n"
48 " ip [ -force ] -batch filename\n"
49 "where OBJECT := { link | addr | addrlabel | route | rule | neigh | ntable |\n"
50 " tunnel | tuntap | maddr | mroute | monitor | xfrm }\n"
51 " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n"
52 " -f[amily] { inet | inet6 | ipx | dnet | link } |\n"
53 " -o[neline] | -t[imestamp] | -b[atch] [filename] }\n");
57 static int do_help(int argc, char **argv)
62 static const struct cmd {
64 int (*func)(int argc, char **argv);
66 { "address", do_ipaddr },
67 { "addrlabel", do_ipaddrlabel },
68 { "maddress", do_multiaddr },
69 { "route", do_iproute },
70 { "rule", do_iprule },
71 { "neighbor", do_ipneigh },
72 { "neighbour", do_ipneigh },
73 { "ntable", do_ipntable },
74 { "ntbl", do_ipntable },
75 { "link", do_iplink },
76 { "tunnel", do_iptunnel },
77 { "tunl", do_iptunnel },
78 { "tuntap", do_iptuntap },
79 { "tap", do_iptuntap },
80 { "monitor", do_ipmonitor },
82 { "mroute", do_multiroute },
87 static int do_cmd(const char *argv0, int argc, char **argv)
91 for (c = cmds; c->cmd; ++c) {
92 if (matches(argv0, c->cmd) == 0)
93 return c->func(argc-1, argv+1);
96 fprintf(stderr, "Object \"%s\" is unknown, try \"ip help\".\n", argv0);
100 static int batch(const char *name)
107 if (name && strcmp(name, "-") != 0) {
108 if (freopen(name, "r", stdin) == NULL) {
109 fprintf(stderr, "Cannot open file \"%s\" for reading: %s\n",
110 name, strerror(errno));
115 if (rtnl_open(&rth, 0) < 0) {
116 fprintf(stderr, "Cannot open rtnetlink\n");
120 while (getcmdline(&line, &len, stdin) != -1) {
124 largc = makeargs(line, largv, 100);
126 continue; /* blank line */
128 if (do_cmd(largv[0], largc, largv)) {
129 fprintf(stderr, "Command failed %s:%d\n", name, lineno);
143 int main(int argc, char **argv)
147 basename = strrchr(argv[0], '/');
148 if (basename == NULL)
155 if (strcmp(opt,"--") == 0) {
163 if (matches(opt, "-family") == 0) {
168 if (strcmp(argv[1], "inet") == 0)
169 preferred_family = AF_INET;
170 else if (strcmp(argv[1], "inet6") == 0)
171 preferred_family = AF_INET6;
172 else if (strcmp(argv[1], "dnet") == 0)
173 preferred_family = AF_DECnet;
174 else if (strcmp(argv[1], "link") == 0)
175 preferred_family = AF_PACKET;
176 else if (strcmp(argv[1], "ipx") == 0)
177 preferred_family = AF_IPX;
178 else if (strcmp(argv[1], "help") == 0)
181 invarg(argv[1], "invalid protocol family");
182 } else if (strcmp(opt, "-4") == 0) {
183 preferred_family = AF_INET;
184 } else if (strcmp(opt, "-6") == 0) {
185 preferred_family = AF_INET6;
186 } else if (strcmp(opt, "-0") == 0) {
187 preferred_family = AF_PACKET;
188 } else if (strcmp(opt, "-I") == 0) {
189 preferred_family = AF_IPX;
190 } else if (strcmp(opt, "-D") == 0) {
191 preferred_family = AF_DECnet;
192 } else if (matches(opt, "-stats") == 0 ||
193 matches(opt, "-statistics") == 0) {
195 } else if (matches(opt, "-details") == 0) {
197 } else if (matches(opt, "-resolve") == 0) {
199 } else if (matches(opt, "-oneline") == 0) {
201 } else if (matches(opt, "-timestamp") == 0) {
204 } else if (matches(opt, "-numeric") == 0) {
205 rtnl_names_numeric++;
207 } else if (matches(opt, "-Version") == 0) {
208 printf("ip utility, iproute2-ss%s\n", SNAPSHOT);
210 } else if (matches(opt, "-force") == 0) {
212 } else if (matches(opt, "-batch") == 0) {
217 batch_file = argv[1];
218 } else if (matches(opt, "-help") == 0) {
221 fprintf(stderr, "Option \"%s\" is unknown, try \"ip -help\".\n", opt);
227 _SL_ = oneline ? "\\" : "\n" ;
230 return batch(batch_file);
232 if (rtnl_open(&rth, 0) < 0)
235 if (strlen(basename) > 2)
236 return do_cmd(basename+2, argc, argv);
239 return do_cmd(argv[1], argc-1, argv+1);