iplink: bridge: add support for IFLA_BR_MCAST_STATS_ENABLED

This patch implements support for the IFLA_BR_MCAST_STATS_ENABLED
attribute in iproute2 so it can enable/disable mcast stats accounting.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c
index cd495b35b57ae8d48d341626704aba77d92d312f..46bbbee3e1a9b1036548771408d43015572e5366 100644 (file)
--- a/ip/iplink_bridge.c
+++ b/ip/iplink_bridge.c
@@ -49,6 +49,7 @@ static void print_explain(FILE *f)
                "                  [ mcast_query_interval QUERY_INTERVAL ]\n"
                "                  [ mcast_query_response_interval QUERY_RESPONSE_INTERVAL ]\n"
                "                  [ mcast_startup_query_interval STARTUP_QUERY_INTERVAL ]\n"
+               "                  [ mcast_stats_enabled MCAST_STATS_ENABLED ]\n"
                "                  [ nf_call_iptables NF_CALL_IPTABLES ]\n"
                "                  [ nf_call_ip6tables NF_CALL_IP6TABLES ]\n"
                "                  [ nf_call_arptables NF_CALL_ARPTABLES ]\n"
@@ -299,6 +300,14 @@ static int bridge_parse_opt(struct link_util *lu, int argc, char **argv,
 
                        addattr64(n, 1024, IFLA_BR_MCAST_STARTUP_QUERY_INTVL,
                                  mcast_startup_query_intvl);
+               } else if (matches(*argv, "mcast_stats_enabled") == 0) {
+                       __u8 mcast_stats_enabled;
+
+                       NEXT_ARG();
+                       if (get_u8(&mcast_stats_enabled, *argv, 0))
+                               invarg("invalid mcast_stats_enabled", *argv);
+                       addattr8(n, 1024, IFLA_BR_MCAST_STATS_ENABLED,
+                                 mcast_stats_enabled);
                } else if (matches(*argv, "nf_call_iptables") == 0) {
                        __u8 nf_call_ipt;
 
@@ -524,6 +533,10 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
                fprintf(f, "mcast_startup_query_interval %llu ",
                        rta_getattr_u64(tb[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]));
 
+       if (tb[IFLA_BR_MCAST_STATS_ENABLED])
+               fprintf(f, "mcast_stats_enabled %u ",
+                       rta_getattr_u8(tb[IFLA_BR_MCAST_STATS_ENABLED]));
+
        if (tb[IFLA_BR_NF_CALL_IPTABLES])
                fprintf(f, "nf_call_iptables %u ",
                        rta_getattr_u8(tb[IFLA_BR_NF_CALL_IPTABLES]));