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/* SPDX-License-Identifier: GPL-2.0 */
/*
* 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 "version.h"
#include "utils.h"
#include "br_common.h"
#include "namespace.h"
#include "color.h"
struct rtnl_handle rth = { .fd = -1 };
int preferred_family = AF_UNSPEC;
int oneline;
int show_stats;
int show_details;
int compress_vlans;
int json;
int timestamp;
static const char *batch_file;
int force;
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 | vni | monitor }\n"
" OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] |\n"
" -o[neline] | -t[imestamp] | -n[etns] name |\n"
" -com[pressvlans] -c[olor] -p[retty] -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 },
{ "vni", do_vni },
{ "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 br_batch_cmd(int argc, char *argv[], void *data)
{
return do_cmd(argv[0], argc, argv);
}
static int batch(const char *name)
{
int ret;
if (rtnl_open(&rth, 0) < 0) {
fprintf(stderr, "Cannot open rtnetlink\n");
return EXIT_FAILURE;
}
rtnl_set_strict_dump(&rth);
ret = do_batch(name, force, br_batch_cmd, NULL);
rtnl_close(&rth);
return ret;
}
int
main(int argc, char **argv)
{
int color = CONF_COLOR;
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, %s\n", version);
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_color(opt, &color)) {
} else if (matches(opt, "-compressvlans") == 0) {
++compress_vlans;
} else if (matches(opt, "-force") == 0) {
++force;
} else if (matches(opt, "-json") == 0) {
++json;
} else if (matches(opt, "-pretty") == 0) {
++pretty;
} 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";
check_enable_color(color, json);
if (batch_file)
return batch(batch_file);
if (rtnl_open(&rth, 0) < 0)
exit(1);
rtnl_set_strict_dump(&rth);
if (argc > 1)
return do_cmd(argv[1], argc-1, argv+1);
rtnl_close(&rth);
usage();
}
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