| /* |
| * Get/set/delete bridge with netlink |
| * |
| * Authors: Stephen Hemminger <shemminger@vyatta.com> |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <sys/socket.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include "SNAPSHOT.h" |
| #include "utils.h" |
| #include "br_common.h" |
| #include "namespace.h" |
| |
| struct rtnl_handle rth = { .fd = -1 }; |
| int preferred_family = AF_UNSPEC; |
| int resolve_hosts; |
| int oneline; |
| int show_stats; |
| int show_details; |
| int compress_vlans; |
| int json_output; |
| int timestamp; |
| char *batch_file; |
| int force; |
| const char *_SL_; |
| |
| static void usage(void) __attribute__((noreturn)); |
| |
| static void usage(void) |
| { |
| fprintf(stderr, |
| "Usage: bridge [ OPTIONS ] OBJECT { COMMAND | help }\n" |
| " bridge [ -force ] -batch filename\n" |
| "where OBJECT := { link | fdb | mdb | vlan | monitor }\n" |
| " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] |\n" |
| " -o[neline] | -t[imestamp] | -n[etns] name |\n" |
| " -c[ompressvlans] -j{son} }\n"); |
| exit(-1); |
| } |
| |
| static int do_help(int argc, char **argv) |
| { |
| usage(); |
| } |
| |
| |
| static const struct cmd { |
| const char *cmd; |
| int (*func)(int argc, char **argv); |
| } cmds[] = { |
| { "link", do_link }, |
| { "fdb", do_fdb }, |
| { "mdb", do_mdb }, |
| { "vlan", do_vlan }, |
| { "monitor", do_monitor }, |
| { "help", do_help }, |
| { 0 } |
| }; |
| |
| static int do_cmd(const char *argv0, int argc, char **argv) |
| { |
| const struct cmd *c; |
| |
| for (c = cmds; c->cmd; ++c) { |
| if (matches(argv0, c->cmd) == 0) |
| return c->func(argc-1, argv+1); |
| } |
| |
| fprintf(stderr, |
| "Object \"%s\" is unknown, try \"bridge help\".\n", argv0); |
| return -1; |
| } |
| |
| static int batch(const char *name) |
| { |
| char *line = NULL; |
| size_t len = 0; |
| int ret = EXIT_SUCCESS; |
| |
| if (name && strcmp(name, "-") != 0) { |
| if (freopen(name, "r", stdin) == NULL) { |
| fprintf(stderr, |
| "Cannot open file \"%s\" for reading: %s\n", |
| name, strerror(errno)); |
| return EXIT_FAILURE; |
| } |
| } |
| |
| if (rtnl_open(&rth, 0) < 0) { |
| fprintf(stderr, "Cannot open rtnetlink\n"); |
| return EXIT_FAILURE; |
| } |
| |
| cmdlineno = 0; |
| while (getcmdline(&line, &len, stdin) != -1) { |
| char *largv[100]; |
| int largc; |
| |
| largc = makeargs(line, largv, 100); |
| if (largc == 0) |
| continue; /* blank line */ |
| |
| if (do_cmd(largv[0], largc, largv)) { |
| fprintf(stderr, "Command failed %s:%d\n", |
| name, cmdlineno); |
| ret = EXIT_FAILURE; |
| if (!force) |
| break; |
| } |
| } |
| if (line) |
| free(line); |
| |
| rtnl_close(&rth); |
| return ret; |
| } |
| |
| int |
| main(int argc, char **argv) |
| { |
| while (argc > 1) { |
| const char *opt = argv[1]; |
| |
| if (strcmp(opt, "--") == 0) { |
| argc--; argv++; |
| break; |
| } |
| if (opt[0] != '-') |
| break; |
| if (opt[1] == '-') |
| opt++; |
| |
| if (matches(opt, "-help") == 0) { |
| usage(); |
| } else if (matches(opt, "-Version") == 0) { |
| printf("bridge utility, 0.0\n"); |
| exit(0); |
| } else if (matches(opt, "-stats") == 0 || |
| matches(opt, "-statistics") == 0) { |
| ++show_stats; |
| } else if (matches(opt, "-details") == 0) { |
| ++show_details; |
| } else if (matches(opt, "-oneline") == 0) { |
| ++oneline; |
| } else if (matches(opt, "-timestamp") == 0) { |
| ++timestamp; |
| } else if (matches(opt, "-family") == 0) { |
| argc--; |
| argv++; |
| if (argc <= 1) |
| usage(); |
| if (strcmp(argv[1], "inet") == 0) |
| preferred_family = AF_INET; |
| else if (strcmp(argv[1], "inet6") == 0) |
| preferred_family = AF_INET6; |
| else if (strcmp(argv[1], "help") == 0) |
| usage(); |
| else |
| invarg("invalid protocol family", argv[1]); |
| } else if (strcmp(opt, "-4") == 0) { |
| preferred_family = AF_INET; |
| } else if (strcmp(opt, "-6") == 0) { |
| preferred_family = AF_INET6; |
| } else if (matches(opt, "-netns") == 0) { |
| NEXT_ARG(); |
| if (netns_switch(argv[1])) |
| exit(-1); |
| } else if (matches(opt, "-compressvlans") == 0) { |
| ++compress_vlans; |
| } else if (matches(opt, "-force") == 0) { |
| ++force; |
| } else if (matches(opt, "-json") == 0) { |
| ++json_output; |
| } else if (matches(opt, "-batch") == 0) { |
| argc--; |
| argv++; |
| if (argc <= 1) |
| usage(); |
| batch_file = argv[1]; |
| } else { |
| fprintf(stderr, |
| "Option \"%s\" is unknown, try \"bridge help\".\n", |
| opt); |
| exit(-1); |
| } |
| argc--; argv++; |
| } |
| |
| _SL_ = oneline ? "\\" : "\n"; |
| |
| if (batch_file) |
| return batch(batch_file); |
| |
| if (rtnl_open(&rth, 0) < 0) |
| exit(1); |
| |
| if (argc > 1) |
| return do_cmd(argv[1], argc-1, argv+1); |
| |
| rtnl_close(&rth); |
| usage(); |
| } |