| /* |
| * iplink_bond.c Bonding 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 <net/if.h> |
| |
| #include "rt_names.h" |
| #include "utils.h" |
| #include "ip_common.h" |
| |
| static void explain(void) |
| { |
| fprintf(stderr, |
| "Usage: ... bond [ mode BONDMODE ] [ active_slave SLAVE_DEV ]\n" |
| " [ clear_active_slave ]\n" |
| "\n" |
| "BONDMODE := 0-6\n" |
| ); |
| } |
| |
| static int bond_parse_opt(struct link_util *lu, int argc, char **argv, |
| struct nlmsghdr *n) |
| { |
| __u8 mode; |
| unsigned ifindex; |
| |
| while (argc > 0) { |
| if (matches(*argv, "mode") == 0) { |
| NEXT_ARG(); |
| if (get_u8(&mode, *argv, 0)) { |
| invarg("mode %s is invalid", *argv); |
| return -1; |
| } |
| addattr8(n, 1024, IFLA_BOND_MODE, mode); |
| } else if (matches(*argv, "active_slave") == 0) { |
| NEXT_ARG(); |
| ifindex = if_nametoindex(*argv); |
| if (!ifindex) |
| return -1; |
| addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, ifindex); |
| } else if (matches(*argv, "clear_active_slave") == 0) { |
| addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, 0); |
| } else { |
| fprintf(stderr, "bond: unknown command \"%s\"?\n", *argv); |
| explain(); |
| return -1; |
| } |
| argc--, argv++; |
| } |
| |
| return 0; |
| } |
| |
| static void bond_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) |
| { |
| unsigned ifindex; |
| |
| if (!tb) |
| return; |
| |
| if (tb[IFLA_BOND_MODE]) |
| fprintf(f, "mode %u ", rta_getattr_u8(tb[IFLA_BOND_MODE])); |
| |
| if (tb[IFLA_BOND_ACTIVE_SLAVE] && |
| (ifindex = rta_getattr_u32(tb[IFLA_BOND_ACTIVE_SLAVE]))) { |
| char buf[IFNAMSIZ]; |
| const char *n = if_indextoname(ifindex, buf); |
| |
| if (n) |
| fprintf(f, "active_slave %s ", n); |
| else |
| fprintf(f, "active_slave %u ", ifindex); |
| } |
| } |
| |
| struct link_util bond_link_util = { |
| .id = "bond", |
| .maxattr = IFLA_BOND_MAX, |
| .parse_opt = bond_parse_opt, |
| .print_opt = bond_print_opt, |
| }; |