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