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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 { "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
},
83 { "mrule", do_multirule
},
84 { "netns", do_netns
},
89 static int do_cmd(const char *argv0
, int argc
, char **argv
)
93 for (c
= cmds
; c
->cmd
; ++c
) {
94 if (matches(argv0
, c
->cmd
) == 0) {
95 return -(c
->func(argc
-1, argv
+1));
99 fprintf(stderr
, "Object \"%s\" is unknown, try \"ip help\".\n", argv0
);
103 static int batch(const char *name
)
107 int ret
= EXIT_SUCCESS
;
109 if (name
&& strcmp(name
, "-") != 0) {
110 if (freopen(name
, "r", stdin
) == NULL
) {
111 fprintf(stderr
, "Cannot open file \"%s\" for reading: %s\n",
112 name
, strerror(errno
));
117 if (rtnl_open(&rth
, 0) < 0) {
118 fprintf(stderr
, "Cannot open rtnetlink\n");
123 while (getcmdline(&line
, &len
, stdin
) != -1) {
127 largc
= makeargs(line
, largv
, 100);
129 continue; /* blank line */
131 if (do_cmd(largv
[0], largc
, largv
)) {
132 fprintf(stderr
, "Command failed %s:%d\n", name
, cmdlineno
);
146 int main(int argc
, char **argv
)
150 basename
= strrchr(argv
[0], '/');
151 if (basename
== NULL
)
158 if (strcmp(opt
,"--") == 0) {
166 if (matches(opt
, "-loops") == 0) {
171 max_flush_loops
= atoi(argv
[1]);
172 } else if (matches(opt
, "-family") == 0) {
177 if (strcmp(argv
[1], "inet") == 0)
178 preferred_family
= AF_INET
;
179 else if (strcmp(argv
[1], "inet6") == 0)
180 preferred_family
= AF_INET6
;
181 else if (strcmp(argv
[1], "dnet") == 0)
182 preferred_family
= AF_DECnet
;
183 else if (strcmp(argv
[1], "link") == 0)
184 preferred_family
= AF_PACKET
;
185 else if (strcmp(argv
[1], "ipx") == 0)
186 preferred_family
= AF_IPX
;
187 else if (strcmp(argv
[1], "help") == 0)
190 invarg(argv
[1], "invalid protocol family");
191 } else if (strcmp(opt
, "-4") == 0) {
192 preferred_family
= AF_INET
;
193 } else if (strcmp(opt
, "-6") == 0) {
194 preferred_family
= AF_INET6
;
195 } else if (strcmp(opt
, "-0") == 0) {
196 preferred_family
= AF_PACKET
;
197 } else if (strcmp(opt
, "-I") == 0) {
198 preferred_family
= AF_IPX
;
199 } else if (strcmp(opt
, "-D") == 0) {
200 preferred_family
= AF_DECnet
;
201 } else if (matches(opt
, "-stats") == 0 ||
202 matches(opt
, "-statistics") == 0) {
204 } else if (matches(opt
, "-details") == 0) {
206 } else if (matches(opt
, "-resolve") == 0) {
208 } else if (matches(opt
, "-oneline") == 0) {
210 } else if (matches(opt
, "-timestamp") == 0) {
213 } else if (matches(opt
, "-numeric") == 0) {
214 rtnl_names_numeric
++;
216 } else if (matches(opt
, "-Version") == 0) {
217 printf("ip utility, iproute2-ss%s\n", SNAPSHOT
);
219 } else if (matches(opt
, "-force") == 0) {
221 } else if (matches(opt
, "-batch") == 0) {
226 batch_file
= argv
[1];
227 } else if (matches(opt
, "-rcvbuf") == 0) {
234 if (get_unsigned(&size
, argv
[1], 0)) {
235 fprintf(stderr
, "Invalid rcvbuf size '%s'\n",
240 } else if (matches(opt
, "-help") == 0) {
243 fprintf(stderr
, "Option \"%s\" is unknown, try \"ip -help\".\n", opt
);
249 _SL_
= oneline
? "\\" : "\n" ;
252 return batch(batch_file
);
254 if (rtnl_open(&rth
, 0) < 0)
257 if (strlen(basename
) > 2)
258 return do_cmd(basename
+2, argc
, argv
);
261 return do_cmd(argv
[1], argc
-1, argv
+1);