[PATCH 2/2] [NEIGH]: Provide number of probes to userspace

[Thomas Graf <tgraf@xxxxxxx>]

Provides number of probes done so far to userspace, quite useful for debugging.

Signed-off-by: Thomas Graf <tgraf@xxxxxxx>

--- linux-2.6.11.orig/include/linux/rtnetlink.h 2005-03-04 00:45:01.000000000 
+0100
+++ linux-2.6.11/include/linux/rtnetlink.h      2005-03-04 02:26:25.000000000 
+0100
@@ -446,6 +446,7 @@
        NDA_DST,
        NDA_LLADDR,
        NDA_CACHEINFO,
+       NDA_PROBES,
        __NDA_MAX
 };
 
--- linux-2.6.11.orig/net/core/neighbour.c      2005-03-04 02:26:20.000000000 
+0100
+++ linux-2.6.11/net/core/neighbour.c   2005-03-04 02:26:25.000000000 +0100
@@ -1554,6 +1554,7 @@
        unsigned char *b = skb->tail;
        struct nda_cacheinfo ci;
        int locked = 0;
+       u32 probes;
        struct nlmsghdr *nlh = NLMSG_PUT(skb, pid, seq, event,
                                         sizeof(struct ndmsg));
        struct ndmsg *ndm = NLMSG_DATA(nlh);
@@ -1573,9 +1574,11 @@
        ci.ndm_confirmed = now - n->confirmed;
        ci.ndm_updated   = now - n->updated;
        ci.ndm_refcnt    = atomic_read(&n->refcnt) - 1;
+       probes = atomic_read(&n->probes);
        read_unlock_bh(&n->lock);
        locked           = 0;
        RTA_PUT(skb, NDA_CACHEINFO, sizeof(ci), &ci);
+       RTA_PUT(skb, NDA_PROBES, sizeof(probes), &probes);
        nlh->nlmsg_len   = skb->tail - b;
        return skb->len;