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iplink: bridge: add support for IFLA_BR_MCAST_ROUTER

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This patch implements support for the IFLA_BR_MCAST_ROUTER attribute
in iproute2 so it can change the multicast router value.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
This commit is contained in:
Nikolay Aleksandrov 2016-02-09 00:14:25 +01:00 committed by Stephen Hemminger
parent 719832af6c
commit 963d137cf9
1 changed files with 13 additions and 0 deletions
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13
ip/iplink_bridge.c
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@ -33,6 +33,7 @@ static void print_explain(FILE *f)
" [ vlan_filtering VLAN_FILTERING ]\n"
" [ vlan_protocol VLAN_PROTOCOL ]\n"
" [ vlan_default_pvid VLAN_DEFAULT_PVID ]\n"
" [ mcast_router MULTICAST_ROUTER ]\n"
"\n"
"Where: VLAN_PROTOCOL := { 802.1Q | 802.1ad }\n"
);
@ -140,6 +141,14 @@ static int bridge_parse_opt(struct link_util *lu, int argc, char **argv,
addattr16(n, 1024, IFLA_BR_VLAN_DEFAULT_PVID,
default_pvid);
} else if (matches(*argv, "mcast_router") == 0) {
__u8 mcast_router;
NEXT_ARG();
if (get_u8(&mcast_router, *argv, 0))
invarg("invalid mcast_router", *argv);
addattr8(n, 1024, IFLA_BR_MCAST_ROUTER, mcast_router);
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
@ -277,6 +286,10 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
RTA_PAYLOAD(tb[IFLA_BR_GROUP_ADDR]),
1 /*ARPHDR_ETHER*/, mac, sizeof(mac)));
}
if (tb[IFLA_BR_MCAST_ROUTER])
fprintf(f, "mcast_router %u ",
rta_getattr_u8(tb[IFLA_BR_MCAST_ROUTER]));
}
static void bridge_print_help(struct link_util *lu, int argc, char **argv,