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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> | |
aba5acdf SH |
15 | #include <fcntl.h> |
16 | #include <sys/socket.h> | |
17 | #include <netinet/in.h> | |
18 | #include <string.h> | |
351efcde | 19 | #include <errno.h> |
aba5acdf SH |
20 | |
21 | #include "SNAPSHOT.h" | |
22 | #include "utils.h" | |
23 | #include "ip_common.h" | |
52700d40 | 24 | #include "namespace.h" |
d7bd2db5 | 25 | #include "color.h" |
aba5acdf SH |
26 | |
27 | int preferred_family = AF_UNSPEC; | |
ec7aff5c SH |
28 | int human_readable; |
29 | int use_iec; | |
30 | int show_stats; | |
31 | int show_details; | |
ec7aff5c | 32 | int oneline; |
5d295bb8 | 33 | int brief; |
5df60772 | 34 | int json; |
ec7aff5c SH |
35 | int timestamp; |
36 | const char *_SL_; | |
37 | int force; | |
64c79560 | 38 | int max_flush_loops = 10; |
ec7aff5c SH |
39 | int batch_mode; |
40 | bool do_all; | |
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" |
7a53aa59 | 51 | "where OBJECT := { link | address | addrlabel | route | rule | neigh | ntable |\n" |
142434dc | 52 | " tunnel | tuntap | maddress | mroute | mrule | monitor | xfrm |\n" |
1949f82c | 53 | " netns | l2tp | fou | macsec | tcp_metrics | token | netconf | ila |\n" |
93863328 | 54 | " vrf | sr }\n" |
1d934839 | 55 | " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n" |
1e264abc | 56 | " -h[uman-readable] | -iec |\n" |
dacc5d41 | 57 | " -f[amily] { inet | inet6 | ipx | dnet | mpls | bridge | link } |\n" |
f4809174 | 58 | " -4 | -6 | -I | -D | -B | -0 |\n" |
5d295bb8 | 59 | " -l[oops] { maximum-addr-flush-attempts } | -br[ief] |\n" |
a925535c | 60 | " -o[neline] | -t[imestamp] | -ts[hort] | -b[atch] [filename] |\n" |
d7bd2db5 | 61 | " -rc[vbuf] [size] | -n[etns] name | -a[ll] | -c[olor]}\n"); |
aba5acdf SH |
62 | exit(-1); |
63 | } | |
64 | ||
fc57a9df SH |
65 | static int do_help(int argc, char **argv) |
66 | { | |
67 | usage(); | |
ec7aff5c | 68 | return 0; |
fc57a9df SH |
69 | } |
70 | ||
351efcde SH |
71 | static const struct cmd { |
72 | const char *cmd; | |
73 | int (*func)(int argc, char **argv); | |
74 | } cmds[] = { | |
4806867a | 75 | { "address", do_ipaddr }, |
4759758c | 76 | { "addrlabel", do_ipaddrlabel }, |
ede72396 | 77 | { "maddress", do_multiaddr }, |
351efcde SH |
78 | { "route", do_iproute }, |
79 | { "rule", do_iprule }, | |
ede72396 SH |
80 | { "neighbor", do_ipneigh }, |
81 | { "neighbour", do_ipneigh }, | |
09954dc6 SH |
82 | { "ntable", do_ipntable }, |
83 | { "ntbl", do_ipntable }, | |
351efcde | 84 | { "link", do_iplink }, |
5aa08f6b | 85 | { "l2tp", do_ipl2tp }, |
6928747b | 86 | { "fou", do_ipfou }, |
ec71cae0 | 87 | { "ila", do_ipila }, |
b26fc590 | 88 | { "macsec", do_ipmacsec }, |
351efcde | 89 | { "tunnel", do_iptunnel }, |
ede72396 | 90 | { "tunl", do_iptunnel }, |
580fbd88 DW |
91 | { "tuntap", do_iptuntap }, |
92 | { "tap", do_iptuntap }, | |
191b60bd | 93 | { "token", do_iptoken }, |
ea63a69b | 94 | { "tcpmetrics", do_tcp_metrics }, |
ec7aff5c | 95 | { "tcp_metrics", do_tcp_metrics }, |
351efcde SH |
96 | { "monitor", do_ipmonitor }, |
97 | { "xfrm", do_xfrm }, | |
84616f83 | 98 | { "mroute", do_multiroute }, |
b6c8e808 | 99 | { "mrule", do_multirule }, |
0dc34c77 | 100 | { "netns", do_netns }, |
9d0efc10 | 101 | { "netconf", do_ipnetconf }, |
1949f82c | 102 | { "vrf", do_ipvrf}, |
93863328 | 103 | { "sr", do_seg6 }, |
fc57a9df | 104 | { "help", do_help }, |
351efcde SH |
105 | { 0 } |
106 | }; | |
107 | ||
108 | static int do_cmd(const char *argv0, int argc, char **argv) | |
109 | { | |
e25d6970 | 110 | const struct cmd *c; |
351efcde | 111 | |
ede72396 | 112 | for (c = cmds; c->cmd; ++c) { |
ec7aff5c | 113 | if (matches(argv0, c->cmd) == 0) |
7397944d | 114 | return -(c->func(argc-1, argv+1)); |
ede72396 SH |
115 | } |
116 | ||
351efcde | 117 | fprintf(stderr, "Object \"%s\" is unknown, try \"ip help\".\n", argv0); |
7397944d | 118 | return EXIT_FAILURE; |
351efcde SH |
119 | } |
120 | ||
121 | static int batch(const char *name) | |
122 | { | |
123 | char *line = NULL; | |
124 | size_t len = 0; | |
7397944d | 125 | int ret = EXIT_SUCCESS; |
531d5da4 | 126 | int orig_family = preferred_family; |
351efcde | 127 | |
a3aa47a5 SH |
128 | batch_mode = 1; |
129 | ||
351efcde SH |
130 | if (name && strcmp(name, "-") != 0) { |
131 | if (freopen(name, "r", stdin) == NULL) { | |
ec7aff5c SH |
132 | fprintf(stderr, |
133 | "Cannot open file \"%s\" for reading: %s\n", | |
351efcde | 134 | name, strerror(errno)); |
7397944d | 135 | return EXIT_FAILURE; |
351efcde SH |
136 | } |
137 | } | |
138 | ||
139 | if (rtnl_open(&rth, 0) < 0) { | |
140 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
7397944d | 141 | return EXIT_FAILURE; |
351efcde SH |
142 | } |
143 | ||
3e4f6a38 | 144 | cmdlineno = 0; |
351efcde SH |
145 | while (getcmdline(&line, &len, stdin) != -1) { |
146 | char *largv[100]; | |
147 | int largc; | |
148 | ||
531d5da4 AP |
149 | preferred_family = orig_family; |
150 | ||
351efcde SH |
151 | largc = makeargs(line, largv, 100); |
152 | if (largc == 0) | |
153 | continue; /* blank line */ | |
154 | ||
155 | if (do_cmd(largv[0], largc, largv)) { | |
ec7aff5c SH |
156 | fprintf(stderr, "Command failed %s:%d\n", |
157 | name, cmdlineno); | |
7397944d | 158 | ret = EXIT_FAILURE; |
351efcde SH |
159 | if (!force) |
160 | break; | |
161 | } | |
162 | } | |
8ed63ab1 SH |
163 | if (line) |
164 | free(line); | |
351efcde SH |
165 | |
166 | rtnl_close(&rth); | |
167 | return ret; | |
168 | } | |
169 | ||
170 | ||
aba5acdf SH |
171 | int main(int argc, char **argv) |
172 | { | |
173 | char *basename; | |
a3aa47a5 | 174 | char *batch_file = NULL; |
aba5acdf SH |
175 | |
176 | basename = strrchr(argv[0], '/'); | |
177 | if (basename == NULL) | |
178 | basename = argv[0]; | |
179 | else | |
180 | basename++; | |
ae665a52 | 181 | |
aba5acdf SH |
182 | while (argc > 1) { |
183 | char *opt = argv[1]; | |
ec7aff5c SH |
184 | |
185 | if (strcmp(opt, "--") == 0) { | |
aba5acdf SH |
186 | argc--; argv++; |
187 | break; | |
188 | } | |
189 | if (opt[0] != '-') | |
190 | break; | |
191 | if (opt[1] == '-') | |
192 | opt++; | |
64c79560 BG |
193 | if (matches(opt, "-loops") == 0) { |
194 | argc--; | |
195 | argv++; | |
196 | if (argc <= 1) | |
197 | usage(); | |
ec7aff5c SH |
198 | max_flush_loops = atoi(argv[1]); |
199 | } else if (matches(opt, "-family") == 0) { | |
aba5acdf SH |
200 | argc--; |
201 | argv++; | |
202 | if (argc <= 1) | |
203 | usage(); | |
45c90d19 | 204 | if (strcmp(argv[1], "help") == 0) |
aba5acdf SH |
205 | usage(); |
206 | else | |
45c90d19 EB |
207 | preferred_family = read_family(argv[1]); |
208 | if (preferred_family == AF_UNSPEC) | |
f1675d61 | 209 | invarg("invalid protocol family", argv[1]); |
aba5acdf SH |
210 | } else if (strcmp(opt, "-4") == 0) { |
211 | preferred_family = AF_INET; | |
212 | } else if (strcmp(opt, "-6") == 0) { | |
213 | preferred_family = AF_INET6; | |
214 | } else if (strcmp(opt, "-0") == 0) { | |
215 | preferred_family = AF_PACKET; | |
216 | } else if (strcmp(opt, "-I") == 0) { | |
217 | preferred_family = AF_IPX; | |
218 | } else if (strcmp(opt, "-D") == 0) { | |
219 | preferred_family = AF_DECnet; | |
dacc5d41 EB |
220 | } else if (strcmp(opt, "-M") == 0) { |
221 | preferred_family = AF_MPLS; | |
27bca615 SH |
222 | } else if (strcmp(opt, "-B") == 0) { |
223 | preferred_family = AF_BRIDGE; | |
b68d9837 CH |
224 | } else if (matches(opt, "-human") == 0 || |
225 | matches(opt, "-human-readable") == 0) { | |
226 | ++human_readable; | |
1e264abc SH |
227 | } else if (matches(opt, "-iec") == 0) { |
228 | ++use_iec; | |
aba5acdf SH |
229 | } else if (matches(opt, "-stats") == 0 || |
230 | matches(opt, "-statistics") == 0) { | |
231 | ++show_stats; | |
1d934839 PM |
232 | } else if (matches(opt, "-details") == 0) { |
233 | ++show_details; | |
aba5acdf SH |
234 | } else if (matches(opt, "-resolve") == 0) { |
235 | ++resolve_hosts; | |
236 | } else if (matches(opt, "-oneline") == 0) { | |
237 | ++oneline; | |
90f93024 SH |
238 | } else if (matches(opt, "-timestamp") == 0) { |
239 | ++timestamp; | |
79aa79d0 VK |
240 | } else if (matches(opt, "-tshort") == 0) { |
241 | ++timestamp; | |
242 | ++timestamp_short; | |
aba5acdf SH |
243 | #if 0 |
244 | } else if (matches(opt, "-numeric") == 0) { | |
245 | rtnl_names_numeric++; | |
246 | #endif | |
247 | } else if (matches(opt, "-Version") == 0) { | |
248 | printf("ip utility, iproute2-ss%s\n", SNAPSHOT); | |
249 | exit(0); | |
351efcde SH |
250 | } else if (matches(opt, "-force") == 0) { |
251 | ++force; | |
252 | } else if (matches(opt, "-batch") == 0) { | |
253 | argc--; | |
254 | argv++; | |
255 | if (argc <= 1) | |
256 | usage(); | |
257 | batch_file = argv[1]; | |
5d295bb8 AG |
258 | } else if (matches(opt, "-brief") == 0) { |
259 | ++brief; | |
5df60772 JF |
260 | } else if (matches(opt, "-json") == 0) { |
261 | ++json; | |
7f03191f PM |
262 | } else if (matches(opt, "-rcvbuf") == 0) { |
263 | unsigned int size; | |
264 | ||
265 | argc--; | |
266 | argv++; | |
267 | if (argc <= 1) | |
268 | usage(); | |
269 | if (get_unsigned(&size, argv[1], 0)) { | |
270 | fprintf(stderr, "Invalid rcvbuf size '%s'\n", | |
271 | argv[1]); | |
272 | exit(-1); | |
273 | } | |
274 | rcvbuf = size; | |
d7bd2db5 MN |
275 | } else if (matches(opt, "-color") == 0) { |
276 | enable_color(); | |
aba5acdf SH |
277 | } else if (matches(opt, "-help") == 0) { |
278 | usage(); | |
52700d40 VK |
279 | } else if (matches(opt, "-netns") == 0) { |
280 | NEXT_ARG(); | |
281 | if (netns_switch(argv[1])) | |
282 | exit(-1); | |
b13ba03f VK |
283 | } else if (matches(opt, "-all") == 0) { |
284 | do_all = true; | |
aba5acdf | 285 | } else { |
ec7aff5c SH |
286 | fprintf(stderr, |
287 | "Option \"%s\" is unknown, try \"ip -help\".\n", | |
288 | opt); | |
aba5acdf SH |
289 | exit(-1); |
290 | } | |
291 | argc--; argv++; | |
292 | } | |
293 | ||
ec7aff5c | 294 | _SL_ = oneline ? "\\" : "\n"; |
aba5acdf | 295 | |
5df60772 JF |
296 | if (json) |
297 | check_if_color_enabled(); | |
298 | ||
ae665a52 | 299 | if (batch_file) |
351efcde | 300 | return batch(batch_file); |
ae665a52 | 301 | |
351efcde SH |
302 | if (rtnl_open(&rth, 0) < 0) |
303 | exit(1); | |
304 | ||
ae665a52 | 305 | if (strlen(basename) > 2) |
351efcde SH |
306 | return do_cmd(basename+2, argc, argv); |
307 | ||
ae665a52 | 308 | if (argc > 1) |
351efcde SH |
309 | return do_cmd(argv[1], argc-1, argv+1); |
310 | ||
311 | rtnl_close(&rth); | |
aba5acdf SH |
312 | usage(); |
313 | } |