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>
17 #include <sys/socket.h>
18 #include <netinet/in.h>
24 #include "ip_common.h"
26 int preferred_family = AF_UNSPEC;
29 int resolve_hosts = 0;
33 char *batch_file = NULL;
35 int max_flush_loops = 10;
37 struct rtnl_handle rth = { .fd = -1 };
39 static void usage(void) __attribute__((noreturn));
41 static void usage(void)
44 "Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }\n"
45 " ip [ -force ] -batch filename\n"
46 "where OBJECT := { link | addr | addrlabel | route | rule | neigh | ntable |\n"
47 " tunnel | tuntap | maddr | mroute | mrule | monitor | xfrm |\n"
49 " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n"
50 " -f[amily] { inet | inet6 | ipx | dnet | link } |\n"
51 " -l[oops] { maximum-addr-flush-attempts } |\n"
52 " -o[neline] | -t[imestamp] | -b[atch] [filename] |\n"
53 " -rc[vbuf] [size]}\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 { "l2tp", do_ipl2tp },
76 { "link", do_iplink },
77 { "tunnel", do_iptunnel },
78 { "tunl", do_iptunnel },
79 { "tuntap", do_iptuntap },
80 { "tap", do_iptuntap },
81 { "monitor", do_ipmonitor },
83 { "mroute", do_multiroute },
84 { "mrule", do_multirule },
85 { "netns", do_netns },
90 static int do_cmd(const char *argv0, int argc, char **argv)
94 for (c = cmds; c->cmd; ++c) {
95 if (matches(argv0, c->cmd) == 0) {
96 return -(c->func(argc-1, argv+1));
100 fprintf(stderr, "Object \"%s\" is unknown, try \"ip help\".\n", argv0);
104 static int batch(const char *name)
108 int ret = EXIT_SUCCESS;
110 if (name && strcmp(name, "-") != 0) {
111 if (freopen(name, "r", stdin) == NULL) {
112 fprintf(stderr, "Cannot open file \"%s\" for reading: %s\n",
113 name, strerror(errno));
118 if (rtnl_open(&rth, 0) < 0) {
119 fprintf(stderr, "Cannot open rtnetlink\n");
124 while (getcmdline(&line, &len, stdin) != -1) {
128 largc = makeargs(line, largv, 100);
130 continue; /* blank line */
132 if (do_cmd(largv[0], largc, largv)) {
133 fprintf(stderr, "Command failed %s:%d\n", name, cmdlineno);
147 int main(int argc, char **argv)
151 basename = strrchr(argv[0], '/');
152 if (basename == NULL)
159 if (strcmp(opt,"--") == 0) {
167 if (matches(opt, "-loops") == 0) {
172 max_flush_loops = atoi(argv[1]);
173 } else if (matches(opt, "-family") == 0) {
178 if (strcmp(argv[1], "inet") == 0)
179 preferred_family = AF_INET;
180 else if (strcmp(argv[1], "inet6") == 0)
181 preferred_family = AF_INET6;
182 else if (strcmp(argv[1], "dnet") == 0)
183 preferred_family = AF_DECnet;
184 else if (strcmp(argv[1], "link") == 0)
185 preferred_family = AF_PACKET;
186 else if (strcmp(argv[1], "ipx") == 0)
187 preferred_family = AF_IPX;
188 else if (strcmp(argv[1], "help") == 0)
191 invarg(argv[1], "invalid protocol family");
192 } else if (strcmp(opt, "-4") == 0) {
193 preferred_family = AF_INET;
194 } else if (strcmp(opt, "-6") == 0) {
195 preferred_family = AF_INET6;
196 } else if (strcmp(opt, "-0") == 0) {
197 preferred_family = AF_PACKET;
198 } else if (strcmp(opt, "-I") == 0) {
199 preferred_family = AF_IPX;
200 } else if (strcmp(opt, "-D") == 0) {
201 preferred_family = AF_DECnet;
202 } else if (matches(opt, "-stats") == 0 ||
203 matches(opt, "-statistics") == 0) {
205 } else if (matches(opt, "-details") == 0) {
207 } else if (matches(opt, "-resolve") == 0) {
209 } else if (matches(opt, "-oneline") == 0) {
211 } else if (matches(opt, "-timestamp") == 0) {
214 } else if (matches(opt, "-numeric") == 0) {
215 rtnl_names_numeric++;
217 } else if (matches(opt, "-Version") == 0) {
218 printf("ip utility, iproute2-ss%s\n", SNAPSHOT);
220 } else if (matches(opt, "-force") == 0) {
222 } else if (matches(opt, "-batch") == 0) {
227 batch_file = argv[1];
228 } else if (matches(opt, "-rcvbuf") == 0) {
235 if (get_unsigned(&size, argv[1], 0)) {
236 fprintf(stderr, "Invalid rcvbuf size '%s'\n",
241 } else if (matches(opt, "-help") == 0) {
244 fprintf(stderr, "Option \"%s\" is unknown, try \"ip -help\".\n", opt);
250 _SL_ = oneline ? "\\" : "\n" ;
253 return batch(batch_file);
255 if (rtnl_open(&rth, 0) < 0)
258 if (strlen(basename) > 2)
259 return do_cmd(basename+2, argc, argv);
262 return do_cmd(argv[1], argc-1, argv+1);