/* * 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 */ #include #include #include #include #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, };