iplink: bridge: add support for IFLA_BR_GROUP_ADDR
This patch implements support for the IFLA_BR_GROUP_ADDR attribute
in iproute2 so it can change the group address.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c
index 2ee4bd6..0a28450 100644
--- a/ip/iplink_bridge.c
+++ b/ip/iplink_bridge.c
@@ -29,6 +29,7 @@
" [ stp_state STP_STATE ]\n"
" [ priority PRIORITY ]\n"
" [ group_fwd_mask MASK ]\n"
+ " [ group_address ADDRESS ]\n"
" [ vlan_filtering VLAN_FILTERING ]\n"
" [ vlan_protocol VLAN_PROTOCOL ]\n"
"\n"
@@ -120,6 +121,15 @@
invarg("invalid group_fwd_mask", *argv);
addattr16(n, 1024, IFLA_BR_GROUP_FWD_MASK, fwd_mask);
+ } else if (matches(*argv, "group_address") == 0) {
+ char llabuf[32];
+ int len;
+
+ NEXT_ARG();
+ len = ll_addr_a2n(llabuf, sizeof(llabuf), *argv);
+ if (len < 0)
+ return -1;
+ addattr_l(n, 1024, IFLA_BR_GROUP_ADDR, llabuf, len);
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
@@ -244,6 +254,15 @@
if (tb[IFLA_BR_GROUP_FWD_MASK])
fprintf(f, "group_fwd_mask %#x ",
rta_getattr_u16(tb[IFLA_BR_GROUP_FWD_MASK]));
+
+ if (tb[IFLA_BR_GROUP_ADDR]) {
+ SPRINT_BUF(mac);
+
+ fprintf(f, "group_address %s ",
+ ll_addr_n2a(RTA_DATA(tb[IFLA_BR_GROUP_ADDR]),
+ RTA_PAYLOAD(tb[IFLA_BR_GROUP_ADDR]),
+ 1 /*ARPHDR_ETHER*/, mac, sizeof(mac)));
+ }
}
static void bridge_print_help(struct link_util *lu, int argc, char **argv,