[PATCH iproute2 04/21] iplink: bridge: add support for IFLA_BR_GROUP_FWD_MASK

[Nikolay Aleksandrov]

From: Nikolay Aleksandrov <niko...@cumulusnetworks.com>

This patch implements support for the IFLA_BR_GROUP_FWD_MASK attribute
in iproute2 so it can change the group forwarding mask.

Signed-off-by: Nikolay Aleksandrov <niko...@cumulusnetworks.com>
---
 ip/iplink_bridge.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c
index 8504be5625fa..fb448f9f863d 100644
--- a/ip/iplink_bridge.c
+++ b/ip/iplink_bridge.c
@@ -27,6 +27,7 @@ static void print_explain(FILE *f)
                "                  [ ageing_time AGEING_TIME ]\n"
                "                  [ stp_state STP_STATE ]\n"
                "                  [ priority PRIORITY ]\n"
+               "                  [ group_fwd_mask MASK ]\n"
                "                  [ vlan_filtering VLAN_FILTERING ]\n"
                "                  [ vlan_protocol VLAN_PROTOCOL ]\n"
                "\n"
@@ -110,6 +111,14 @@ static int bridge_parse_opt(struct link_util *lu, int 
argc, char **argv,
                                return -1;
                        }
                        addattr16(n, 1024, IFLA_BR_VLAN_PROTOCOL, vlan_proto);
+               } else if (matches(*argv, "group_fwd_mask") == 0) {
+                       __u16 fwd_mask;
+
+                       NEXT_ARG();
+                       if (get_u16(&fwd_mask, *argv, 0))
+                               invarg("invalid group_fwd_mask", *argv);
+
+                       addattr16(n, 1024, IFLA_BR_GROUP_FWD_MASK, fwd_mask);
                } else if (matches(*argv, "help") == 0) {
                        explain();
                        return -1;
@@ -212,6 +221,10 @@ static void bridge_print_opt(struct link_util *lu, FILE 
*f, struct rtattr *tb[])
        if (tb[IFLA_BR_GC_TIMER])
                fprintf(f, "gc_timer %llu ",
                        rta_getattr_u64(tb[IFLA_BR_GC_TIMER]));
+
+       if (tb[IFLA_BR_GROUP_FWD_MASK])
+               fprintf(f, "group_fwd_mask %#x ",
+                       rta_getattr_u16(tb[IFLA_BR_GROUP_FWD_MASK]));
 }
 
 static void bridge_print_help(struct link_util *lu, int argc, char **argv,
-- 
2.4.3