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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; | |
ec7aff5c | 33 | const char *_SL_; |
d04bc300 SH |
34 | |
35 | static void usage(void) __attribute__((noreturn)); | |
36 | ||
37 | static void usage(void) | |
38 | { | |
39 | fprintf(stderr, | |
90698170 | 40 | "Usage: bridge [ OPTIONS ] OBJECT { COMMAND | help }\n" |
9de8c6d9 | 41 | " bridge [ -force ] -batch filename\n" |
ec7aff5c SH |
42 | "where OBJECT := { link | fdb | mdb | vlan | monitor }\n" |
43 | " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] |\n" | |
44 | " -o[neline] | -t[imestamp] | -n[etns] name |\n" | |
c7c1a1ef | 45 | " -c[ompressvlans] -color -p[retty] -j{son} }\n"); |
d04bc300 SH |
46 | exit(-1); |
47 | } | |
48 | ||
49 | static int do_help(int argc, char **argv) | |
50 | { | |
51 | usage(); | |
52 | } | |
53 | ||
54 | ||
55 | static const struct cmd { | |
56 | const char *cmd; | |
57 | int (*func)(int argc, char **argv); | |
58 | } cmds[] = { | |
ec7aff5c SH |
59 | { "link", do_link }, |
60 | { "fdb", do_fdb }, | |
61 | { "mdb", do_mdb }, | |
9eff0e5c | 62 | { "vlan", do_vlan }, |
d04bc300 SH |
63 | { "monitor", do_monitor }, |
64 | { "help", do_help }, | |
65 | { 0 } | |
66 | }; | |
67 | ||
68 | static int do_cmd(const char *argv0, int argc, char **argv) | |
69 | { | |
70 | const struct cmd *c; | |
71 | ||
72 | for (c = cmds; c->cmd; ++c) { | |
73 | if (matches(argv0, c->cmd) == 0) | |
74 | return c->func(argc-1, argv+1); | |
75 | } | |
76 | ||
ec7aff5c SH |
77 | fprintf(stderr, |
78 | "Object \"%s\" is unknown, try \"bridge help\".\n", argv0); | |
d04bc300 SH |
79 | return -1; |
80 | } | |
81 | ||
9de8c6d9 WK |
82 | static int batch(const char *name) |
83 | { | |
84 | char *line = NULL; | |
85 | size_t len = 0; | |
86 | int ret = EXIT_SUCCESS; | |
87 | ||
88 | if (name && strcmp(name, "-") != 0) { | |
89 | if (freopen(name, "r", stdin) == NULL) { | |
90 | fprintf(stderr, | |
91 | "Cannot open file \"%s\" for reading: %s\n", | |
92 | name, strerror(errno)); | |
93 | return EXIT_FAILURE; | |
94 | } | |
95 | } | |
96 | ||
97 | if (rtnl_open(&rth, 0) < 0) { | |
98 | fprintf(stderr, "Cannot open rtnetlink\n"); | |
99 | return EXIT_FAILURE; | |
100 | } | |
101 | ||
102 | cmdlineno = 0; | |
103 | while (getcmdline(&line, &len, stdin) != -1) { | |
104 | char *largv[100]; | |
105 | int largc; | |
106 | ||
107 | largc = makeargs(line, largv, 100); | |
108 | if (largc == 0) | |
109 | continue; /* blank line */ | |
110 | ||
111 | if (do_cmd(largv[0], largc, largv)) { | |
112 | fprintf(stderr, "Command failed %s:%d\n", | |
113 | name, cmdlineno); | |
114 | ret = EXIT_FAILURE; | |
115 | if (!force) | |
116 | break; | |
117 | } | |
118 | } | |
119 | if (line) | |
120 | free(line); | |
121 | ||
122 | rtnl_close(&rth); | |
123 | return ret; | |
124 | } | |
125 | ||
d04bc300 SH |
126 | int |
127 | main(int argc, char **argv) | |
128 | { | |
129 | while (argc > 1) { | |
ec7aff5c SH |
130 | const char *opt = argv[1]; |
131 | ||
132 | if (strcmp(opt, "--") == 0) { | |
d04bc300 SH |
133 | argc--; argv++; |
134 | break; | |
135 | } | |
136 | if (opt[0] != '-') | |
137 | break; | |
138 | if (opt[1] == '-') | |
139 | opt++; | |
140 | ||
141 | if (matches(opt, "-help") == 0) { | |
142 | usage(); | |
143 | } else if (matches(opt, "-Version") == 0) { | |
90698170 | 144 | printf("bridge utility, 0.0\n"); |
d04bc300 SH |
145 | exit(0); |
146 | } else if (matches(opt, "-stats") == 0 || | |
147 | matches(opt, "-statistics") == 0) { | |
148 | ++show_stats; | |
149 | } else if (matches(opt, "-details") == 0) { | |
150 | ++show_details; | |
4cd20da1 SH |
151 | } else if (matches(opt, "-oneline") == 0) { |
152 | ++oneline; | |
d04bc300 SH |
153 | } else if (matches(opt, "-timestamp") == 0) { |
154 | ++timestamp; | |
ec7aff5c | 155 | } else if (matches(opt, "-family") == 0) { |
0849e60a SH |
156 | argc--; |
157 | argv++; | |
158 | if (argc <= 1) | |
159 | usage(); | |
160 | if (strcmp(argv[1], "inet") == 0) | |
161 | preferred_family = AF_INET; | |
162 | else if (strcmp(argv[1], "inet6") == 0) | |
163 | preferred_family = AF_INET6; | |
164 | else if (strcmp(argv[1], "help") == 0) | |
165 | usage(); | |
166 | else | |
167 | invarg("invalid protocol family", argv[1]); | |
168 | } else if (strcmp(opt, "-4") == 0) { | |
169 | preferred_family = AF_INET; | |
170 | } else if (strcmp(opt, "-6") == 0) { | |
171 | preferred_family = AF_INET6; | |
527910c8 VK |
172 | } else if (matches(opt, "-netns") == 0) { |
173 | NEXT_ARG(); | |
174 | if (netns_switch(argv[1])) | |
175 | exit(-1); | |
c7c1a1ef SH |
176 | } else if (matches(opt, "-color") == 0) { |
177 | enable_color(); | |
a2f7934d RP |
178 | } else if (matches(opt, "-compressvlans") == 0) { |
179 | ++compress_vlans; | |
9de8c6d9 WK |
180 | } else if (matches(opt, "-force") == 0) { |
181 | ++force; | |
d82a49ce | 182 | } else if (matches(opt, "-json") == 0) { |
01842eb5 SH |
183 | ++json; |
184 | } else if (matches(opt, "-pretty") == 0) { | |
185 | ++pretty; | |
9de8c6d9 WK |
186 | } else if (matches(opt, "-batch") == 0) { |
187 | argc--; | |
188 | argv++; | |
189 | if (argc <= 1) | |
190 | usage(); | |
191 | batch_file = argv[1]; | |
d04bc300 | 192 | } else { |
ec7aff5c SH |
193 | fprintf(stderr, |
194 | "Option \"%s\" is unknown, try \"bridge help\".\n", | |
195 | opt); | |
d04bc300 SH |
196 | exit(-1); |
197 | } | |
198 | argc--; argv++; | |
199 | } | |
200 | ||
ec7aff5c | 201 | _SL_ = oneline ? "\\" : "\n"; |
4cd20da1 | 202 | |
c7c1a1ef SH |
203 | if (json) |
204 | check_if_color_enabled(); | |
205 | ||
9de8c6d9 WK |
206 | if (batch_file) |
207 | return batch(batch_file); | |
208 | ||
d04bc300 SH |
209 | if (rtnl_open(&rth, 0) < 0) |
210 | exit(1); | |
211 | ||
212 | if (argc > 1) | |
213 | return do_cmd(argv[1], argc-1, argv+1); | |
214 | ||
215 | rtnl_close(&rth); | |
216 | usage(); | |
217 | } |