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8#include <stdio.h>
9#include <stdlib.h>
10#include <unistd.h>
11#include <sys/socket.h>
12#include <string.h>
13#include <errno.h>
14
15#include "version.h"
16#include "utils.h"
17#include "br_common.h"
18#include "namespace.h"
19#include "color.h"
20
21struct rtnl_handle rth = { .fd = -1 };
22int preferred_family = AF_UNSPEC;
23int oneline;
24int show_stats;
25int show_details;
26static int color;
27int compress_vlans;
28int json;
29int timestamp;
30static const char *batch_file;
31int force;
32
33static void usage(void) __attribute__((noreturn));
34
35static void usage(void)
36{
37 fprintf(stderr,
38"Usage: bridge [ OPTIONS ] OBJECT { COMMAND | help }\n"
39" bridge [ -force ] -batch filename\n"
40"where OBJECT := { link | fdb | mdb | vlan | monitor }\n"
41" OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] |\n"
42" -o[neline] | -t[imestamp] | -n[etns] name |\n"
43" -c[ompressvlans] -color -p[retty] -j[son] }\n");
44 exit(-1);
45}
46
47static int do_help(int argc, char **argv)
48{
49 usage();
50}
51
52
53static const struct cmd {
54 const char *cmd;
55 int (*func)(int argc, char **argv);
56} cmds[] = {
57 { "link", do_link },
58 { "fdb", do_fdb },
59 { "mdb", do_mdb },
60 { "vlan", do_vlan },
61 { "monitor", do_monitor },
62 { "help", do_help },
63 { 0 }
64};
65
66static int do_cmd(const char *argv0, int argc, char **argv)
67{
68 const struct cmd *c;
69
70 for (c = cmds; c->cmd; ++c) {
71 if (matches(argv0, c->cmd) == 0)
72 return c->func(argc-1, argv+1);
73 }
74
75 fprintf(stderr,
76 "Object \"%s\" is unknown, try \"bridge help\".\n", argv0);
77 return -1;
78}
79
80static int br_batch_cmd(int argc, char *argv[], void *data)
81{
82 return do_cmd(argv[0], argc, argv);
83}
84
85static int batch(const char *name)
86{
87 int ret;
88
89 if (rtnl_open(&rth, 0) < 0) {
90 fprintf(stderr, "Cannot open rtnetlink\n");
91 return EXIT_FAILURE;
92 }
93
94 rtnl_set_strict_dump(&rth);
95
96 ret = do_batch(name, force, br_batch_cmd, NULL);
97
98 rtnl_close(&rth);
99 return ret;
100}
101
102int
103main(int argc, char **argv)
104{
105 while (argc > 1) {
106 const char *opt = argv[1];
107
108 if (strcmp(opt, "--") == 0) {
109 argc--; argv++;
110 break;
111 }
112 if (opt[0] != '-')
113 break;
114 if (opt[1] == '-')
115 opt++;
116
117 if (matches(opt, "-help") == 0) {
118 usage();
119 } else if (matches(opt, "-Version") == 0) {
120 printf("bridge utility, %s\n", version);
121 exit(0);
122 } else if (matches(opt, "-stats") == 0 ||
123 matches(opt, "-statistics") == 0) {
124 ++show_stats;
125 } else if (matches(opt, "-details") == 0) {
126 ++show_details;
127 } else if (matches(opt, "-oneline") == 0) {
128 ++oneline;
129 } else if (matches(opt, "-timestamp") == 0) {
130 ++timestamp;
131 } else if (matches(opt, "-family") == 0) {
132 argc--;
133 argv++;
134 if (argc <= 1)
135 usage();
136 if (strcmp(argv[1], "inet") == 0)
137 preferred_family = AF_INET;
138 else if (strcmp(argv[1], "inet6") == 0)
139 preferred_family = AF_INET6;
140 else if (strcmp(argv[1], "help") == 0)
141 usage();
142 else
143 invarg("invalid protocol family", argv[1]);
144 } else if (strcmp(opt, "-4") == 0) {
145 preferred_family = AF_INET;
146 } else if (strcmp(opt, "-6") == 0) {
147 preferred_family = AF_INET6;
148 } else if (matches(opt, "-netns") == 0) {
149 NEXT_ARG();
150 if (netns_switch(argv[1]))
151 exit(-1);
152 } else if (matches_color(opt, &color)) {
153 } else if (matches(opt, "-compressvlans") == 0) {
154 ++compress_vlans;
155 } else if (matches(opt, "-force") == 0) {
156 ++force;
157 } else if (matches(opt, "-json") == 0) {
158 ++json;
159 } else if (matches(opt, "-pretty") == 0) {
160 ++pretty;
161 } else if (matches(opt, "-batch") == 0) {
162 argc--;
163 argv++;
164 if (argc <= 1)
165 usage();
166 batch_file = argv[1];
167 } else {
168 fprintf(stderr,
169 "Option \"%s\" is unknown, try \"bridge help\".\n",
170 opt);
171 exit(-1);
172 }
173 argc--; argv++;
174 }
175
176 _SL_ = oneline ? "\\" : "\n";
177
178 check_enable_color(color, json);
179
180 if (batch_file)
181 return batch(batch_file);
182
183 if (rtnl_open(&rth, 0) < 0)
184 exit(1);
185
186 rtnl_set_strict_dump(&rth);
187
188 if (argc > 1)
189 return do_cmd(argv[1], argc-1, argv+1);
190
191 rtnl_close(&rth);
192 usage();
193}
194
