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aba5acdf SH |
1 | /* |
2 | * ip.c "ip" utility frontend. | |
3 | * | |
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. | |
8 | * | |
9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
aba5acdf SH |
10 | */ |
11 | ||
12 | #include <stdio.h> | |
13 | #include <stdlib.h> | |
14 | #include <unistd.h> | |
15 | #include <syslog.h> | |
16 | #include <fcntl.h> | |
17 | #include <sys/socket.h> | |
18 | #include <netinet/in.h> | |
19 | #include <string.h> | |
351efcde | 20 | #include <errno.h> |
aba5acdf SH |
21 | |
22 | #include "SNAPSHOT.h" | |
23 | #include "utils.h" | |
24 | #include "ip_common.h" | |
52700d40 | 25 | #include "namespace.h" |
d7bd2db5 | 26 | #include "color.h" |
aba5acdf SH |
27 | |
28 | int preferred_family = AF_UNSPEC; | |
b68d9837 | 29 | int human_readable = 0; |
1e264abc | 30 | int use_iec = 0; |
aba5acdf | 31 | int show_stats = 0; |
1d934839 | 32 | int show_details = 0; |
aba5acdf SH |
33 | int resolve_hosts = 0; |
34 | int oneline = 0; | |
90f93024 | 35 | int timestamp = 0; |
aba5acdf | 36 | char * _SL_ = NULL; |
351efcde | 37 | int force = 0; |
64c79560 | 38 | int max_flush_loops = 10; |
a3aa47a5 | 39 | int batch_mode = 0; |
b13ba03f | 40 | bool do_all = false; |
64c79560 | 41 | |
3bfa73ff | 42 | struct rtnl_handle rth = { .fd = -1 }; |
aba5acdf SH |
43 | |
44 | static void usage(void) __attribute__((noreturn)); | |
45 | ||
46 | static void usage(void) | |
47 | { | |
48 | fprintf(stderr, | |
49 | "Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }\n" | |
10494d27 | 50 | " ip [ -force ] -batch filename\n" |
4759758c | 51 | "where OBJECT := { link | addr | addrlabel | route | rule | neigh | ntable |\n" |
0dc34c77 | 52 | " tunnel | tuntap | maddr | mroute | mrule | monitor | xfrm |\n" |
6928747b | 53 | " netns | l2tp | fou | tcp_metrics | token | netconf }\n" |
1d934839 | 54 | " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n" |
1e264abc | 55 | " -h[uman-readable] | -iec |\n" |
dacc5d41 | 56 | " -f[amily] { inet | inet6 | ipx | dnet | mpls | bridge | link } |\n" |
f4809174 | 57 | " -4 | -6 | -I | -D | -B | -0 |\n" |
64c79560 | 58 | " -l[oops] { maximum-addr-flush-attempts } |\n" |
a925535c | 59 | " -o[neline] | -t[imestamp] | -ts[hort] | -b[atch] [filename] |\n" |
d7bd2db5 | 60 | " -rc[vbuf] [size] | -n[etns] name | -a[ll] | -c[olor]}\n"); |
aba5acdf SH |
61 | exit(-1); |
62 | } | |
63 | ||
fc57a9df SH |
64 | static int do_help(int argc, char **argv) |
65 | { | |
66 | usage(); | |
ecf52428 | 67 | return 0; |
fc57a9df SH |
68 | } |
69 | ||
351efcde SH |
70 | static const struct cmd { |
71 | const char *cmd; | |
72 | int (*func)(int argc, char **argv); | |
73 | } cmds[] = { | |
4806867a | 74 | { "address", do_ipaddr }, |
4759758c | 75 | { "addrlabel", do_ipaddrlabel }, |
ede72396 | 76 | { "maddress", do_multiaddr }, |
351efcde SH |
77 | { "route", do_iproute }, |
78 | { "rule", do_iprule }, | |
ede72396 SH |
79 | { "neighbor", do_ipneigh }, |
80 | { "neighbour", do_ipneigh }, | |
09954dc6 SH |
81 | { "ntable", do_ipntable }, |
82 | { "ntbl", do_ipntable }, | |
351efcde | 83 | { "link", do_iplink }, |
5aa08f6b | 84 | { "l2tp", do_ipl2tp }, |
6928747b | 85 | { "fou", do_ipfou }, |
351efcde | 86 | { "tunnel", do_iptunnel }, |
ede72396 | 87 | { "tunl", do_iptunnel }, |
580fbd88 DW |
88 | { "tuntap", do_iptuntap }, |
89 | { "tap", do_iptuntap }, | |
191b60bd | 90 | { "token", do_iptoken }, |
ea63a69b JA |
91 | { "tcpmetrics", do_tcp_metrics }, |
92 | { "tcp_metrics",do_tcp_metrics }, | |
351efcde SH |
93 | { "monitor", do_ipmonitor }, |
94 | { "xfrm", do_xfrm }, | |
84616f83 | 95 | { "mroute", do_multiroute }, |
b6c8e808 | 96 | { "mrule", do_multirule }, |
0dc34c77 | 97 | { "netns", do_netns }, |
9d0efc10 | 98 | { "netconf", do_ipnetconf }, |
fc57a9df | 99 | { "help", do_help }, |
351efcde SH |
100 | { 0 } |
101 | }; | |
102 | ||
103 | static int do_cmd(const char *argv0, int argc, char **argv) | |
104 | { | |
e25d6970 | 105 | const struct cmd *c; |
351efcde | 106 | |
ede72396 | 107 | for (c = cmds; c->cmd; ++c) { |
7397944d SH |
108 | if (matches(argv0, c->cmd) == 0) { |
109 | return -(c->func(argc-1, argv+1)); | |
110 | } | |
ede72396 SH |
111 | } |
112 | ||
351efcde | 113 | fprintf(stderr, "Object \"%s\" is unknown, try \"ip help\".\n", argv0); |
7397944d | 114 | return EXIT_FAILURE; |
351efcde SH |
115 | } |
116 | ||
117 | static int batch(const char *name) | |
118 | { | |
119 | char *line = NULL; | |
120 | size_t len = 0; | |
7397944d | 121 | int ret = EXIT_SUCCESS; |
351efcde | 122 | |
a3aa47a5 SH |
123 | batch_mode = 1; |
124 | ||
351efcde SH |
125 | if (name && strcmp(name, "-") != 0) { |
126 | if (freopen(name, "r", stdin) == NULL) { | |
692e0757 | 127 | fprintf(stderr, "Cannot open file \"%s\" for reading: %s\n", |
351efcde | 128 | name, strerror(errno)); |
7397944d | 129 | return EXIT_FAILURE; |
351efcde SH |
130 | } |
131 | } | |
132 | ||
133 | if (rtnl_open(&rth, 0) < 0) { | |
134 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
7397944d | 135 | return EXIT_FAILURE; |
351efcde SH |
136 | } |
137 | ||
3e4f6a38 | 138 | cmdlineno = 0; |
351efcde SH |
139 | while (getcmdline(&line, &len, stdin) != -1) { |
140 | char *largv[100]; | |
141 | int largc; | |
142 | ||
143 | largc = makeargs(line, largv, 100); | |
144 | if (largc == 0) | |
145 | continue; /* blank line */ | |
146 | ||
147 | if (do_cmd(largv[0], largc, largv)) { | |
3e4f6a38 | 148 | fprintf(stderr, "Command failed %s:%d\n", name, cmdlineno); |
7397944d | 149 | ret = EXIT_FAILURE; |
351efcde SH |
150 | if (!force) |
151 | break; | |
152 | } | |
153 | } | |
8ed63ab1 SH |
154 | if (line) |
155 | free(line); | |
351efcde SH |
156 | |
157 | rtnl_close(&rth); | |
158 | return ret; | |
159 | } | |
160 | ||
161 | ||
aba5acdf SH |
162 | int main(int argc, char **argv) |
163 | { | |
164 | char *basename; | |
a3aa47a5 | 165 | char *batch_file = NULL; |
aba5acdf SH |
166 | |
167 | basename = strrchr(argv[0], '/'); | |
168 | if (basename == NULL) | |
169 | basename = argv[0]; | |
170 | else | |
171 | basename++; | |
ae665a52 | 172 | |
aba5acdf SH |
173 | while (argc > 1) { |
174 | char *opt = argv[1]; | |
175 | if (strcmp(opt,"--") == 0) { | |
176 | argc--; argv++; | |
177 | break; | |
178 | } | |
179 | if (opt[0] != '-') | |
180 | break; | |
181 | if (opt[1] == '-') | |
182 | opt++; | |
64c79560 BG |
183 | if (matches(opt, "-loops") == 0) { |
184 | argc--; | |
185 | argv++; | |
186 | if (argc <= 1) | |
187 | usage(); | |
188 | max_flush_loops = atoi(argv[1]); | |
189 | } else if (matches(opt, "-family") == 0) { | |
aba5acdf SH |
190 | argc--; |
191 | argv++; | |
192 | if (argc <= 1) | |
193 | usage(); | |
45c90d19 | 194 | if (strcmp(argv[1], "help") == 0) |
aba5acdf SH |
195 | usage(); |
196 | else | |
45c90d19 EB |
197 | preferred_family = read_family(argv[1]); |
198 | if (preferred_family == AF_UNSPEC) | |
f1675d61 | 199 | invarg("invalid protocol family", argv[1]); |
aba5acdf SH |
200 | } else if (strcmp(opt, "-4") == 0) { |
201 | preferred_family = AF_INET; | |
202 | } else if (strcmp(opt, "-6") == 0) { | |
203 | preferred_family = AF_INET6; | |
204 | } else if (strcmp(opt, "-0") == 0) { | |
205 | preferred_family = AF_PACKET; | |
206 | } else if (strcmp(opt, "-I") == 0) { | |
207 | preferred_family = AF_IPX; | |
208 | } else if (strcmp(opt, "-D") == 0) { | |
209 | preferred_family = AF_DECnet; | |
dacc5d41 EB |
210 | } else if (strcmp(opt, "-M") == 0) { |
211 | preferred_family = AF_MPLS; | |
27bca615 SH |
212 | } else if (strcmp(opt, "-B") == 0) { |
213 | preferred_family = AF_BRIDGE; | |
b68d9837 CH |
214 | } else if (matches(opt, "-human") == 0 || |
215 | matches(opt, "-human-readable") == 0) { | |
216 | ++human_readable; | |
1e264abc SH |
217 | } else if (matches(opt, "-iec") == 0) { |
218 | ++use_iec; | |
aba5acdf SH |
219 | } else if (matches(opt, "-stats") == 0 || |
220 | matches(opt, "-statistics") == 0) { | |
221 | ++show_stats; | |
1d934839 PM |
222 | } else if (matches(opt, "-details") == 0) { |
223 | ++show_details; | |
aba5acdf SH |
224 | } else if (matches(opt, "-resolve") == 0) { |
225 | ++resolve_hosts; | |
226 | } else if (matches(opt, "-oneline") == 0) { | |
227 | ++oneline; | |
90f93024 SH |
228 | } else if (matches(opt, "-timestamp") == 0) { |
229 | ++timestamp; | |
79aa79d0 VK |
230 | } else if (matches(opt, "-tshort") == 0) { |
231 | ++timestamp; | |
232 | ++timestamp_short; | |
aba5acdf SH |
233 | #if 0 |
234 | } else if (matches(opt, "-numeric") == 0) { | |
235 | rtnl_names_numeric++; | |
236 | #endif | |
237 | } else if (matches(opt, "-Version") == 0) { | |
238 | printf("ip utility, iproute2-ss%s\n", SNAPSHOT); | |
239 | exit(0); | |
351efcde SH |
240 | } else if (matches(opt, "-force") == 0) { |
241 | ++force; | |
242 | } else if (matches(opt, "-batch") == 0) { | |
243 | argc--; | |
244 | argv++; | |
245 | if (argc <= 1) | |
246 | usage(); | |
247 | batch_file = argv[1]; | |
7f03191f PM |
248 | } else if (matches(opt, "-rcvbuf") == 0) { |
249 | unsigned int size; | |
250 | ||
251 | argc--; | |
252 | argv++; | |
253 | if (argc <= 1) | |
254 | usage(); | |
255 | if (get_unsigned(&size, argv[1], 0)) { | |
256 | fprintf(stderr, "Invalid rcvbuf size '%s'\n", | |
257 | argv[1]); | |
258 | exit(-1); | |
259 | } | |
260 | rcvbuf = size; | |
d7bd2db5 MN |
261 | } else if (matches(opt, "-color") == 0) { |
262 | enable_color(); | |
aba5acdf SH |
263 | } else if (matches(opt, "-help") == 0) { |
264 | usage(); | |
52700d40 VK |
265 | } else if (matches(opt, "-netns") == 0) { |
266 | NEXT_ARG(); | |
267 | if (netns_switch(argv[1])) | |
268 | exit(-1); | |
b13ba03f VK |
269 | } else if (matches(opt, "-all") == 0) { |
270 | do_all = true; | |
aba5acdf SH |
271 | } else { |
272 | fprintf(stderr, "Option \"%s\" is unknown, try \"ip -help\".\n", opt); | |
273 | exit(-1); | |
274 | } | |
275 | argc--; argv++; | |
276 | } | |
277 | ||
278 | _SL_ = oneline ? "\\" : "\n" ; | |
279 | ||
ae665a52 | 280 | if (batch_file) |
351efcde | 281 | return batch(batch_file); |
ae665a52 | 282 | |
351efcde SH |
283 | if (rtnl_open(&rth, 0) < 0) |
284 | exit(1); | |
285 | ||
ae665a52 | 286 | if (strlen(basename) > 2) |
351efcde SH |
287 | return do_cmd(basename+2, argc, argv); |
288 | ||
ae665a52 | 289 | if (argc > 1) |
351efcde SH |
290 | return do_cmd(argv[1], argc-1, argv+1); |
291 | ||
292 | rtnl_close(&rth); | |
aba5acdf SH |
293 | usage(); |
294 | } |