Add Monitor Support For Neigh Table

This patch adds exclusive support to enable monitoring
neighbour table entries in ip command.

Signed-off-by: Varun Chandramohan <varunc@linux.vnet.ibm.com>

diff --git a/ip/ipmonitor.c b/ip/ipmonitor.c
index df0fd91701bddb3cf55607d70ca76b5a9f65c814..a74730e49277510ef1c37556029ff1ec2fe8cd23 100644 (file)
--- a/ip/ipmonitor.c
+++ b/ip/ipmonitor.c
@@ -102,6 +102,7 @@ int do_ipmonitor(int argc, char **argv)
        int laddr=0;
        int lroute=0;
        int lprefix=0;
+       int lneigh=0;
 
        rtnl_close(&rth);
        ipaddr_reset_filter(1);
@@ -124,6 +125,9 @@ int do_ipmonitor(int argc, char **argv)
                } else if (matches(*argv, "prefix") == 0) {
                        lprefix=1;
                        groups = 0;
+               } else if (matches(*argv, "neigh") == 0) {
+                       lneigh=1;
+                       groups = 0;             
                } else if (strcmp(*argv, "all") == 0) {
                        groups = ~RTMGRP_TC;
                } else if (matches(*argv, "help") == 0) {
@@ -153,7 +157,9 @@ int do_ipmonitor(int argc, char **argv)
                if (!preferred_family || preferred_family == AF_INET6)
                        groups |= nl_mgrp(RTNLGRP_IPV6_PREFIX);
        }
-
+       if (lneigh) {
+               groups |= nl_mgrp(RTNLGRP_NEIGH);
+       }
        if (file) {
                FILE *fp;
                fp = fopen(file, "r");