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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> | |
10 | * | |
11 | * | |
12 | * Changes: | |
13 | * | |
14 | * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses | |
15 | */ | |
16 | ||
17 | #include <stdio.h> | |
18 | #include <stdlib.h> | |
19 | #include <unistd.h> | |
20 | #include <syslog.h> | |
21 | #include <fcntl.h> | |
22 | #include <sys/socket.h> | |
23 | #include <netinet/in.h> | |
24 | #include <string.h> | |
351efcde | 25 | #include <errno.h> |
aba5acdf SH |
26 | |
27 | #include "SNAPSHOT.h" | |
28 | #include "utils.h" | |
29 | #include "ip_common.h" | |
30 | ||
31 | int preferred_family = AF_UNSPEC; | |
32 | int show_stats = 0; | |
1d934839 | 33 | int show_details = 0; |
aba5acdf SH |
34 | int resolve_hosts = 0; |
35 | int oneline = 0; | |
90f93024 | 36 | int timestamp = 0; |
aba5acdf | 37 | char * _SL_ = NULL; |
351efcde SH |
38 | char *batch_file = NULL; |
39 | int force = 0; | |
3bfa73ff | 40 | struct rtnl_handle rth = { .fd = -1 }; |
aba5acdf SH |
41 | |
42 | static void usage(void) __attribute__((noreturn)); | |
43 | ||
44 | static void usage(void) | |
45 | { | |
46 | fprintf(stderr, | |
47 | "Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }\n" | |
3d418dc3 | 48 | " ip [ -force ] [-batch filename\n" |
09954dc6 | 49 | "where OBJECT := { link | addr | route | rule | neigh | ntable | tunnel |\n" |
147da5de | 50 | " maddr | mroute | monitor | xfrm }\n" |
1d934839 | 51 | " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n" |
90f93024 SH |
52 | " -f[amily] { inet | inet6 | ipx | dnet | link } |\n" |
53 | " -o[neline] | -t[imestamp] }\n"); | |
aba5acdf SH |
54 | exit(-1); |
55 | } | |
56 | ||
fc57a9df SH |
57 | static int do_help(int argc, char **argv) |
58 | { | |
59 | usage(); | |
60 | } | |
61 | ||
351efcde SH |
62 | static const struct cmd { |
63 | const char *cmd; | |
64 | int (*func)(int argc, char **argv); | |
65 | } cmds[] = { | |
ede72396 SH |
66 | { "address", do_ipaddr }, |
67 | { "maddress", do_multiaddr }, | |
351efcde SH |
68 | { "route", do_iproute }, |
69 | { "rule", do_iprule }, | |
ede72396 SH |
70 | { "neighbor", do_ipneigh }, |
71 | { "neighbour", do_ipneigh }, | |
09954dc6 SH |
72 | { "ntable", do_ipntable }, |
73 | { "ntbl", do_ipntable }, | |
351efcde SH |
74 | { "link", do_iplink }, |
75 | { "tunnel", do_iptunnel }, | |
ede72396 | 76 | { "tunl", do_iptunnel }, |
351efcde SH |
77 | { "monitor", do_ipmonitor }, |
78 | { "xfrm", do_xfrm }, | |
84616f83 | 79 | { "mroute", do_multiroute }, |
fc57a9df | 80 | { "help", do_help }, |
351efcde SH |
81 | { 0 } |
82 | }; | |
83 | ||
84 | static int do_cmd(const char *argv0, int argc, char **argv) | |
85 | { | |
e25d6970 | 86 | const struct cmd *c; |
351efcde | 87 | |
ede72396 | 88 | for (c = cmds; c->cmd; ++c) { |
e25d6970 SH |
89 | if (matches(argv0, c->cmd) == 0) |
90 | return c->func(argc-1, argv+1); | |
ede72396 SH |
91 | } |
92 | ||
351efcde | 93 | fprintf(stderr, "Object \"%s\" is unknown, try \"ip help\".\n", argv0); |
ede72396 | 94 | return -1; |
351efcde SH |
95 | } |
96 | ||
97 | static int batch(const char *name) | |
98 | { | |
99 | char *line = NULL; | |
100 | size_t len = 0; | |
101 | int ret = 0; | |
102 | int lineno = 0; | |
103 | ||
104 | if (name && strcmp(name, "-") != 0) { | |
105 | if (freopen(name, "r", stdin) == NULL) { | |
106 | fprintf(stderr, "Cannot open file \"%s\" for reading: %s=n", | |
107 | name, strerror(errno)); | |
108 | return -1; | |
109 | } | |
110 | } | |
111 | ||
112 | if (rtnl_open(&rth, 0) < 0) { | |
113 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
114 | return -1; | |
115 | } | |
116 | ||
117 | while (getcmdline(&line, &len, stdin) != -1) { | |
118 | char *largv[100]; | |
119 | int largc; | |
120 | ||
121 | largc = makeargs(line, largv, 100); | |
122 | if (largc == 0) | |
123 | continue; /* blank line */ | |
124 | ||
125 | if (do_cmd(largv[0], largc, largv)) { | |
126 | fprintf(stderr, "Command failed %s:%d\n", name, lineno); | |
127 | ret = 1; | |
128 | if (!force) | |
129 | break; | |
130 | } | |
131 | } | |
8ed63ab1 SH |
132 | if (line) |
133 | free(line); | |
351efcde SH |
134 | |
135 | rtnl_close(&rth); | |
136 | return ret; | |
137 | } | |
138 | ||
139 | ||
aba5acdf SH |
140 | int main(int argc, char **argv) |
141 | { | |
142 | char *basename; | |
143 | ||
144 | basename = strrchr(argv[0], '/'); | |
145 | if (basename == NULL) | |
146 | basename = argv[0]; | |
147 | else | |
148 | basename++; | |
ae665a52 | 149 | |
aba5acdf SH |
150 | while (argc > 1) { |
151 | char *opt = argv[1]; | |
152 | if (strcmp(opt,"--") == 0) { | |
153 | argc--; argv++; | |
154 | break; | |
155 | } | |
156 | if (opt[0] != '-') | |
157 | break; | |
158 | if (opt[1] == '-') | |
159 | opt++; | |
160 | if (matches(opt, "-family") == 0) { | |
161 | argc--; | |
162 | argv++; | |
163 | if (argc <= 1) | |
164 | usage(); | |
165 | if (strcmp(argv[1], "inet") == 0) | |
166 | preferred_family = AF_INET; | |
167 | else if (strcmp(argv[1], "inet6") == 0) | |
168 | preferred_family = AF_INET6; | |
169 | else if (strcmp(argv[1], "dnet") == 0) | |
170 | preferred_family = AF_DECnet; | |
171 | else if (strcmp(argv[1], "link") == 0) | |
172 | preferred_family = AF_PACKET; | |
173 | else if (strcmp(argv[1], "ipx") == 0) | |
174 | preferred_family = AF_IPX; | |
175 | else if (strcmp(argv[1], "help") == 0) | |
176 | usage(); | |
177 | else | |
178 | invarg(argv[1], "invalid protocol family"); | |
179 | } else if (strcmp(opt, "-4") == 0) { | |
180 | preferred_family = AF_INET; | |
181 | } else if (strcmp(opt, "-6") == 0) { | |
182 | preferred_family = AF_INET6; | |
183 | } else if (strcmp(opt, "-0") == 0) { | |
184 | preferred_family = AF_PACKET; | |
185 | } else if (strcmp(opt, "-I") == 0) { | |
186 | preferred_family = AF_IPX; | |
187 | } else if (strcmp(opt, "-D") == 0) { | |
188 | preferred_family = AF_DECnet; | |
189 | } else if (matches(opt, "-stats") == 0 || | |
190 | matches(opt, "-statistics") == 0) { | |
191 | ++show_stats; | |
1d934839 PM |
192 | } else if (matches(opt, "-details") == 0) { |
193 | ++show_details; | |
aba5acdf SH |
194 | } else if (matches(opt, "-resolve") == 0) { |
195 | ++resolve_hosts; | |
196 | } else if (matches(opt, "-oneline") == 0) { | |
197 | ++oneline; | |
90f93024 SH |
198 | } else if (matches(opt, "-timestamp") == 0) { |
199 | ++timestamp; | |
aba5acdf SH |
200 | #if 0 |
201 | } else if (matches(opt, "-numeric") == 0) { | |
202 | rtnl_names_numeric++; | |
203 | #endif | |
204 | } else if (matches(opt, "-Version") == 0) { | |
205 | printf("ip utility, iproute2-ss%s\n", SNAPSHOT); | |
206 | exit(0); | |
351efcde SH |
207 | } else if (matches(opt, "-force") == 0) { |
208 | ++force; | |
209 | } else if (matches(opt, "-batch") == 0) { | |
210 | argc--; | |
211 | argv++; | |
212 | if (argc <= 1) | |
213 | usage(); | |
214 | batch_file = argv[1]; | |
aba5acdf SH |
215 | } else if (matches(opt, "-help") == 0) { |
216 | usage(); | |
217 | } else { | |
218 | fprintf(stderr, "Option \"%s\" is unknown, try \"ip -help\".\n", opt); | |
219 | exit(-1); | |
220 | } | |
221 | argc--; argv++; | |
222 | } | |
223 | ||
224 | _SL_ = oneline ? "\\" : "\n" ; | |
225 | ||
ae665a52 | 226 | if (batch_file) |
351efcde | 227 | return batch(batch_file); |
ae665a52 | 228 | |
351efcde SH |
229 | if (rtnl_open(&rth, 0) < 0) |
230 | exit(1); | |
231 | ||
ae665a52 | 232 | if (strlen(basename) > 2) |
351efcde SH |
233 | return do_cmd(basename+2, argc, argv); |
234 | ||
ae665a52 | 235 | if (argc > 1) |
351efcde SH |
236 | return do_cmd(argv[1], argc-1, argv+1); |
237 | ||
238 | rtnl_close(&rth); | |
aba5acdf SH |
239 | usage(); |
240 | } |