iplink: add support for IFLA_BR_VLAN_FILTERING attribute

This patch implements support for the IFLA_BR_VLAN_FILTERING attribute
in iproute2 so it can enable/disable vlan_filtering.

Example:
$ ip link set br0 type bridge vlan_filtering 1
$ ip -d link show br0
6: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP mode DEFAULT group default
    link/ether 08:00:27:ea:07:38 brd ff:ff:ff:ff:ff:ff promiscuity 0
    bridge forward_delay 1500 hello_time 200 max_age 2000 vlan_filtering 1
    addrgenmode eui64

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c
index e704e290ce4194278762eb584d09287fec5c3ec5..a8bc8406776e6d53799741cf43f4e5dd3f224b09 100644 (file)
--- a/ip/iplink_bridge.c
+++ b/ip/iplink_bridge.c
@@ -26,6 +26,7 @@ static void print_explain(FILE *f)
                "                  [ ageing_time AGEING_TIME ]\n"
                "                  [ stp_state STP_STATE ]\n"
                "                  [ priority PRIORITY ]\n"
+               "                  [ vlan_filtering VLAN_FILTERING ]\n"
        );
 }
 
@@ -84,6 +85,15 @@ static int bridge_parse_opt(struct link_util *lu, int argc, char **argv,
                                return -1;
                        }
                        addattr16(n, 1024, IFLA_BR_PRIORITY, prio);
+               } else if (matches(*argv, "vlan_filtering") == 0) {
+                       __u8 vlan_filter;
+
+                       NEXT_ARG();
+                       if (get_u8(&vlan_filter, *argv, 0)) {
+                               invarg("invalid vlan_filtering", *argv);
+                               return -1;
+                       }
+                       addattr8(n, 1024, IFLA_BR_VLAN_FILTERING, vlan_filter);
                } else if (matches(*argv, "help") == 0) {
                        explain();
                        return -1;
@@ -126,6 +136,10 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
        if (tb[IFLA_BR_PRIORITY])
                fprintf(f, "priority %u ",
                        rta_getattr_u16(tb[IFLA_BR_PRIORITY]));
+
+       if (tb[IFLA_BR_VLAN_FILTERING])
+               fprintf(f, "vlan_filtering %u ",
+                       rta_getattr_u8(tb[IFLA_BR_VLAN_FILTERING]));
 }
 
 static void bridge_print_help(struct link_util *lu, int argc, char **argv,