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netfilter: ctnetlink: fix echo if not subscribed to any multicast group 

This patch fixes echoing if the socket that has sent the request to
create/update/delete an entry is not subscribed to any multicast
group. With the current code, ctnetlink would not send the echo
message via unicast as nfnetlink_send() would be skip.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Pablo Neira Ayuso 2009-02-09 14:34:26 -08:00 committed by David S. Miller
parent c969aa7d2c
commit 1f9da25616
1 changed files with 3 additions and 2 deletions
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5
net/netfilter/nf_conntrack_netlink.c
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@ -434,7 +434,7 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
} else
return NOTIFY_DONE;
if (!nfnetlink_has_listeners(group))
if (!item->report && !nfnetlink_has_listeners(group))
return NOTIFY_DONE;
skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
@ -1502,7 +1502,8 @@ static int ctnetlink_expect_event(struct notifier_block *this,
} else
return NOTIFY_DONE;
if (!nfnetlink_has_listeners(NFNLGRP_CONNTRACK_EXP_NEW))
if (!item->report &&
!nfnetlink_has_listeners(NFNLGRP_CONNTRACK_EXP_NEW))
return NOTIFY_DONE;
skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);