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iplink: bridge: export bridge_id and designated_root

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Netlink returns the bridge_id and designated_root, we just need to
make them visible.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
This commit is contained in:
Nikolay Aleksandrov 2016-02-09 00:14:19 +01:00 committed by Stephen Hemminger
parent a1987cd17f
commit 70dfb0b883
1 changed files with 26 additions and 0 deletions
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26
ip/iplink_bridge.c
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@ -13,6 +13,7 @@
#include <stdlib.h>
#include <string.h>
#include <linux/if_link.h>
#include <netinet/ether.h>
#include "rt_names.h"
#include "utils.h"
@ -39,6 +40,15 @@ static void explain(void)
print_explain(stderr);
}
static void br_dump_bridge_id(const struct ifla_bridge_id *id, char *buf,
size_t len)
{
char eaddr[32];
ether_ntoa_r((const struct ether_addr *)id->addr, eaddr);
snprintf(buf, len, "%.2x%.2x.%s", id->prio[0], id->prio[1], eaddr);
}
static int bridge_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
@ -155,6 +165,22 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
ll_proto_n2a(rta_getattr_u16(tb[IFLA_BR_VLAN_PROTOCOL]),
b1, sizeof(b1)));
}
if (tb[IFLA_BR_BRIDGE_ID]) {
char bridge_id[32];
br_dump_bridge_id(RTA_DATA(tb[IFLA_BR_BRIDGE_ID]), bridge_id,
sizeof(bridge_id));
fprintf(f, "bridge_id %s ", bridge_id);
}
if (tb[IFLA_BR_ROOT_ID]) {
char root_id[32];
br_dump_bridge_id(RTA_DATA(tb[IFLA_BR_BRIDGE_ID]), root_id,
sizeof(root_id));
fprintf(f, "designated_root %s ", root_id);
}
}
static void bridge_print_help(struct link_util *lu, int argc, char **argv,