This is a note to let you know that I've just added the patch titled
netfilter: ctnetlink: Support offloaded conntrack entry deletion
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
netfilter-ctnetlink-support-offloaded-conntrack-entry-deletion.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9b7c68b3911aef84afa4cbfc31bce20f10570d51 Mon Sep 17 00:00:00 2001
From: Paul Blakey <paulb@xxxxxxxxxx>
Date: Wed, 22 Mar 2023 09:35:32 +0200
Subject: netfilter: ctnetlink: Support offloaded conntrack entry deletion
From: Paul Blakey <paulb@xxxxxxxxxx>
commit 9b7c68b3911aef84afa4cbfc31bce20f10570d51 upstream.
Currently, offloaded conntrack entries (flows) can only be deleted
after they are removed from offload, which is either by timeout,
tcp state change or tc ct rule deletion. This can cause issues for
users wishing to manually delete or flush existing entries.
Support deletion of offloaded conntrack entries.
Example usage:
# Delete all offloaded (and non offloaded) conntrack entries
# whose source address is 1.2.3.4
$ conntrack -D -s 1.2.3.4
# Delete all entries
$ conntrack -F
Signed-off-by: Paul Blakey <paulb@xxxxxxxxxx>
Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxx>
Acked-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Cc: Demi Marie Obenour <demi@xxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/netfilter/nf_conntrack_netlink.c | 8 --------
1 file changed, 8 deletions(-)
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1216,9 +1216,6 @@ static const struct nla_policy ct_nla_po
static int ctnetlink_flush_iterate(struct nf_conn *ct, void *data)
{
- if (test_bit(IPS_OFFLOAD_BIT, &ct->status))
- return 0;
-
return ctnetlink_filter_match(ct, data);
}
@@ -1280,11 +1277,6 @@ static int ctnetlink_del_conntrack(struc
ct = nf_ct_tuplehash_to_ctrack(h);
- if (test_bit(IPS_OFFLOAD_BIT, &ct->status)) {
- nf_ct_put(ct);
- return -EBUSY;
- }
-
if (cda[CTA_ID]) {
__be32 id = nla_get_be32(cda[CTA_ID]);
Patches currently in stable-queue which might be from paulb@xxxxxxxxxx are
queue-4.19/netfilter-ctnetlink-support-offloaded-conntrack-entry-deletion.patch
