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Commit | Line | Data |
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6054c1eb | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
d04bc300 SH |
2 | /* |
3 | * Get/set/delete bridge with netlink | |
4 | * | |
5 | * Authors: Stephen Hemminger <shemminger@vyatta.com> | |
6 | */ | |
7 | ||
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
10 | #include <unistd.h> | |
11 | #include <sys/socket.h> | |
12 | #include <string.h> | |
9de8c6d9 | 13 | #include <errno.h> |
d04bc300 SH |
14 | |
15 | #include "SNAPSHOT.h" | |
16 | #include "utils.h" | |
17 | #include "br_common.h" | |
527910c8 | 18 | #include "namespace.h" |
c7c1a1ef | 19 | #include "color.h" |
d04bc300 SH |
20 | |
21 | struct rtnl_handle rth = { .fd = -1 }; | |
0849e60a | 22 | int preferred_family = AF_UNSPEC; |
ec7aff5c | 23 | int oneline; |
d04bc300 SH |
24 | int show_stats; |
25 | int show_details; | |
c7c1a1ef SH |
26 | int show_pretty; |
27 | int color; | |
a2f7934d | 28 | int compress_vlans; |
01842eb5 | 29 | int json; |
d04bc300 | 30 | int timestamp; |
9de8c6d9 WK |
31 | char *batch_file; |
32 | int force; | |
d04bc300 SH |
33 | |
34 | static void usage(void) __attribute__((noreturn)); | |
35 | ||
36 | static void usage(void) | |
37 | { | |
38 | fprintf(stderr, | |
90698170 | 39 | "Usage: bridge [ OPTIONS ] OBJECT { COMMAND | help }\n" |
9de8c6d9 | 40 | " bridge [ -force ] -batch filename\n" |
ec7aff5c SH |
41 | "where OBJECT := { link | fdb | mdb | vlan | monitor }\n" |
42 | " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] |\n" | |
43 | " -o[neline] | -t[imestamp] | -n[etns] name |\n" | |
f9ff0cd6 | 44 | " -c[ompressvlans] -color -p[retty] -j[son] }\n"); |
d04bc300 SH |
45 | exit(-1); |
46 | } | |
47 | ||
48 | static int do_help(int argc, char **argv) | |
49 | { | |
50 | usage(); | |
51 | } | |
52 | ||
53 | ||
54 | static const struct cmd { | |
55 | const char *cmd; | |
56 | int (*func)(int argc, char **argv); | |
57 | } cmds[] = { | |
ec7aff5c SH |
58 | { "link", do_link }, |
59 | { "fdb", do_fdb }, | |
60 | { "mdb", do_mdb }, | |
9eff0e5c | 61 | { "vlan", do_vlan }, |
d04bc300 SH |
62 | { "monitor", do_monitor }, |
63 | { "help", do_help }, | |
64 | { 0 } | |
65 | }; | |
66 | ||
67 | static int do_cmd(const char *argv0, int argc, char **argv) | |
68 | { | |
69 | const struct cmd *c; | |
70 | ||
71 | for (c = cmds; c->cmd; ++c) { | |
72 | if (matches(argv0, c->cmd) == 0) | |
73 | return c->func(argc-1, argv+1); | |
74 | } | |
75 | ||
ec7aff5c SH |
76 | fprintf(stderr, |
77 | "Object \"%s\" is unknown, try \"bridge help\".\n", argv0); | |
d04bc300 SH |
78 | return -1; |
79 | } | |
80 | ||
9de8c6d9 WK |
81 | static int batch(const char *name) |
82 | { | |
83 | char *line = NULL; | |
84 | size_t len = 0; | |
85 | int ret = EXIT_SUCCESS; | |
86 | ||
87 | if (name && strcmp(name, "-") != 0) { | |
88 | if (freopen(name, "r", stdin) == NULL) { | |
89 | fprintf(stderr, | |
90 | "Cannot open file \"%s\" for reading: %s\n", | |
91 | name, strerror(errno)); | |
92 | return EXIT_FAILURE; | |
93 | } | |
94 | } | |
95 | ||
96 | if (rtnl_open(&rth, 0) < 0) { | |
97 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
98 | return EXIT_FAILURE; | |
99 | } | |
100 | ||
101 | cmdlineno = 0; | |
102 | while (getcmdline(&line, &len, stdin) != -1) { | |
103 | char *largv[100]; | |
104 | int largc; | |
105 | ||
106 | largc = makeargs(line, largv, 100); | |
107 | if (largc == 0) | |
108 | continue; /* blank line */ | |
109 | ||
110 | if (do_cmd(largv[0], largc, largv)) { | |
111 | fprintf(stderr, "Command failed %s:%d\n", | |
112 | name, cmdlineno); | |
113 | ret = EXIT_FAILURE; | |
114 | if (!force) | |
115 | break; | |
116 | } | |
117 | } | |
118 | if (line) | |
119 | free(line); | |
120 | ||
121 | rtnl_close(&rth); | |
122 | return ret; | |
123 | } | |
124 | ||
d04bc300 SH |
125 | int |
126 | main(int argc, char **argv) | |
127 | { | |
128 | while (argc > 1) { | |
ec7aff5c SH |
129 | const char *opt = argv[1]; |
130 | ||
131 | if (strcmp(opt, "--") == 0) { | |
d04bc300 SH |
132 | argc--; argv++; |
133 | break; | |
134 | } | |
135 | if (opt[0] != '-') | |
136 | break; | |
137 | if (opt[1] == '-') | |
138 | opt++; | |
139 | ||
140 | if (matches(opt, "-help") == 0) { | |
141 | usage(); | |
142 | } else if (matches(opt, "-Version") == 0) { | |
90698170 | 143 | printf("bridge utility, 0.0\n"); |
d04bc300 SH |
144 | exit(0); |
145 | } else if (matches(opt, "-stats") == 0 || | |
146 | matches(opt, "-statistics") == 0) { | |
147 | ++show_stats; | |
148 | } else if (matches(opt, "-details") == 0) { | |
149 | ++show_details; | |
4cd20da1 SH |
150 | } else if (matches(opt, "-oneline") == 0) { |
151 | ++oneline; | |
d04bc300 SH |
152 | } else if (matches(opt, "-timestamp") == 0) { |
153 | ++timestamp; | |
ec7aff5c | 154 | } else if (matches(opt, "-family") == 0) { |
0849e60a SH |
155 | argc--; |
156 | argv++; | |
157 | if (argc <= 1) | |
158 | usage(); | |
159 | if (strcmp(argv[1], "inet") == 0) | |
160 | preferred_family = AF_INET; | |
161 | else if (strcmp(argv[1], "inet6") == 0) | |
162 | preferred_family = AF_INET6; | |
163 | else if (strcmp(argv[1], "help") == 0) | |
164 | usage(); | |
165 | else | |
166 | invarg("invalid protocol family", argv[1]); | |
167 | } else if (strcmp(opt, "-4") == 0) { | |
168 | preferred_family = AF_INET; | |
169 | } else if (strcmp(opt, "-6") == 0) { | |
170 | preferred_family = AF_INET6; | |
527910c8 VK |
171 | } else if (matches(opt, "-netns") == 0) { |
172 | NEXT_ARG(); | |
173 | if (netns_switch(argv[1])) | |
174 | exit(-1); | |
ff1ab8ed | 175 | } else if (matches_color(opt, &color)) { |
a2f7934d RP |
176 | } else if (matches(opt, "-compressvlans") == 0) { |
177 | ++compress_vlans; | |
9de8c6d9 WK |
178 | } else if (matches(opt, "-force") == 0) { |
179 | ++force; | |
d82a49ce | 180 | } else if (matches(opt, "-json") == 0) { |
01842eb5 SH |
181 | ++json; |
182 | } else if (matches(opt, "-pretty") == 0) { | |
183 | ++pretty; | |
9de8c6d9 WK |
184 | } else if (matches(opt, "-batch") == 0) { |
185 | argc--; | |
186 | argv++; | |
187 | if (argc <= 1) | |
188 | usage(); | |
189 | batch_file = argv[1]; | |
d04bc300 | 190 | } else { |
ec7aff5c SH |
191 | fprintf(stderr, |
192 | "Option \"%s\" is unknown, try \"bridge help\".\n", | |
193 | opt); | |
d04bc300 SH |
194 | exit(-1); |
195 | } | |
196 | argc--; argv++; | |
197 | } | |
198 | ||
ec7aff5c | 199 | _SL_ = oneline ? "\\" : "\n"; |
4cd20da1 | 200 | |
4d82962c | 201 | check_enable_color(color, json); |
c7c1a1ef | 202 | |
9de8c6d9 WK |
203 | if (batch_file) |
204 | return batch(batch_file); | |
205 | ||
d04bc300 SH |
206 | if (rtnl_open(&rth, 0) < 0) |
207 | exit(1); | |
208 | ||
209 | if (argc > 1) | |
210 | return do_cmd(argv[1], argc-1, argv+1); | |
211 | ||
212 | rtnl_close(&rth); | |
213 | usage(); | |
214 | } |