93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
/*
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* iplink_bond.c Bonding device support
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Jiri Pirko <jiri@resnulli.us>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <linux/if_link.h>
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#include <net/if.h>
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#include "rt_names.h"
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#include "utils.h"
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#include "ip_common.h"
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static void explain(void)
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{
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fprintf(stderr,
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"Usage: ... bond [ mode BONDMODE ] [ active_slave SLAVE_DEV ]\n"
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" [ clear_active_slave ]\n"
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"\n"
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"BONDMODE := 0-6\n"
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);
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}
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static int bond_parse_opt(struct link_util *lu, int argc, char **argv,
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struct nlmsghdr *n)
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{
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__u8 mode;
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unsigned ifindex;
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while (argc > 0) {
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if (matches(*argv, "mode") == 0) {
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NEXT_ARG();
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if (get_u8(&mode, *argv, 0)) {
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invarg("mode %s is invalid", *argv);
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return -1;
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}
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addattr8(n, 1024, IFLA_BOND_MODE, mode);
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} else if (matches(*argv, "active_slave") == 0) {
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NEXT_ARG();
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ifindex = if_nametoindex(*argv);
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if (!ifindex)
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return -1;
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addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, ifindex);
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} else if (matches(*argv, "clear_active_slave") == 0) {
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addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, 0);
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} else {
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fprintf(stderr, "bond: unknown command \"%s\"?\n", *argv);
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explain();
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return -1;
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}
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argc--, argv++;
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}
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return 0;
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}
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static void bond_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
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{
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unsigned ifindex;
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if (!tb)
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return;
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if (tb[IFLA_BOND_MODE])
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fprintf(f, "mode %u ", rta_getattr_u8(tb[IFLA_BOND_MODE]));
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if (tb[IFLA_BOND_ACTIVE_SLAVE] &&
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(ifindex = rta_getattr_u32(tb[IFLA_BOND_ACTIVE_SLAVE]))) {
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char buf[IFNAMSIZ];
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const char *n = if_indextoname(ifindex, buf);
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if (n)
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fprintf(f, "active_slave %s ", n);
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else
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fprintf(f, "active_slave %u ", ifindex);
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}
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}
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struct link_util bond_link_util = {
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.id = "bond",
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.maxattr = IFLA_BOND_MAX,
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.parse_opt = bond_parse_opt,
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.print_opt = bond_print_opt,
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};
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