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zebra: add debug in specific neigh fetch

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add debug trace in specific neigh request send api
to help debug an issue where synchronous response parse
returns with NLMSG_DONE where there is no ipv6 neigh received.
the count value is set to 1 because the request contained
a spcific neigh.

Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>
This commit is contained in:
Chirag Shah 2019-03-26 18:23:58 -07:00 committed by Donald Sharp
parent 2a0e69ae3c
commit 7c26c12106
1 changed files with 9 additions and 0 deletions
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9
zebra/rt_netlink.c
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@ -3285,6 +3285,15 @@ static int netlink_request_specific_neigh_in_vlan(struct zebra_ns *zns,
addattr_l(&req.n, sizeof(req), NDA_DST, &ip->ip.addr, ipa_len);
if (IS_ZEBRA_DEBUG_KERNEL) {
char buf[INET6_ADDRSTRLEN];
zlog_debug("%s: Tx %s family %s IF %u IP %s flags 0x%x",
__func__, nl_msg_type_to_str(type),
nl_family_to_str(req.ndm.ndm_family), ifindex,
ipaddr2str(ip, buf, sizeof(buf)), req.n.nlmsg_flags);
}
return netlink_request(&zns->netlink_cmd, &req.n);
}