| /* |
| * iplink_bridge.c Bridge device support |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * Authors: Jiri Pirko <jiri@resnulli.us> |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <linux/if_link.h> |
| |
| #include "utils.h" |
| #include "ip_common.h" |
| |
| static void explain(void) |
| { |
| fprintf(stderr, |
| "Usage: ... bridge [ forward_delay FORWARD_DELAY ]\n" |
| " [ hello_time HELLO_TIME ]\n" |
| " [ max_age MAX_AGE ]\n" |
| ); |
| } |
| |
| static int bridge_parse_opt(struct link_util *lu, int argc, char **argv, |
| struct nlmsghdr *n) |
| { |
| __u32 val; |
| |
| while (argc > 0) { |
| if (matches(*argv, "forward_delay") == 0) { |
| NEXT_ARG(); |
| if (get_u32(&val, *argv, 0)) { |
| invarg("invalid forward_delay", *argv); |
| return -1; |
| } |
| addattr32(n, 1024, IFLA_BR_FORWARD_DELAY, val); |
| } else if (matches(*argv, "hello_time") == 0) { |
| NEXT_ARG(); |
| if (get_u32(&val, *argv, 0)) { |
| invarg("invalid hello_time", *argv); |
| return -1; |
| } |
| addattr32(n, 1024, IFLA_BR_HELLO_TIME, val); |
| } else if (matches(*argv, "max_age") == 0) { |
| NEXT_ARG(); |
| if (get_u32(&val, *argv, 0)) { |
| invarg("invalid max_age", *argv); |
| return -1; |
| } |
| addattr32(n, 1024, IFLA_BR_MAX_AGE, val); |
| } else if (matches(*argv, "help") == 0) { |
| explain(); |
| return -1; |
| } else { |
| fprintf(stderr, "bridge: unknown command \"%s\"?\n", *argv); |
| explain(); |
| return -1; |
| } |
| argc--, argv++; |
| } |
| |
| return 0; |
| } |
| |
| static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) |
| { |
| if (!tb) |
| return; |
| |
| if (tb[IFLA_BR_FORWARD_DELAY]) |
| fprintf(f, "forward_delay %u ", |
| rta_getattr_u32(tb[IFLA_BR_FORWARD_DELAY])); |
| |
| if (tb[IFLA_BR_HELLO_TIME]) |
| fprintf(f, "hello_time %u ", |
| rta_getattr_u32(tb[IFLA_BR_HELLO_TIME])); |
| |
| if (tb[IFLA_BR_MAX_AGE]) |
| fprintf(f, "max_age %u ", |
| rta_getattr_u32(tb[IFLA_BR_MAX_AGE])); |
| } |
| |
| struct link_util bridge_link_util = { |
| .id = "bridge", |
| .maxattr = IFLA_BR_MAX, |
| .parse_opt = bridge_parse_opt, |
| .print_opt = bridge_print_opt, |
| }; |