netfilter: ipvs: fix incorrect conflict resolution

The commit ab8bc7ed864b9c4f1fcb00a22bbe4e0f66ce8003
("netfilter: remove nf_ct_is_untracked")
changed the line
   if (ct && !nf_ct_is_untracked(ct) && nfct_nat(ct)) {
	   to
   if (ct && nfct_nat(ct)) {

meanwhile, the commit 41390895e50bc4f28abe384c6b35ac27464a20ec
("netfilter: ipvs: don't check for presence of nat extension")
from ipvs-next had changed the same line to

  if (ct && !nf_ct_is_untracked(ct) && (ct->status & IPS_NAT_MASK)) {

When ipvs-next got merged into nf-next, the merge resolution took
the first version, dropping the conversion of nfct_nat().

While this doesn't cause a problem at the moment, it will once we stop
adding the nat extension by default.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c
index af3a9bbdf2ae24e1ccdc47fe0b4cf3ff3e498fe6..fb780be76d15a05c0d66e8a7f5ea58ee32dacdb9 100644 (file)
--- a/net/netfilter/ipvs/ip_vs_ftp.c
+++ b/net/netfilter/ipvs/ip_vs_ftp.c
@@ -260,8 +260,9 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
                buf_len = strlen(buf);
 
                ct = nf_ct_get(skb, &ctinfo);
-               if (ct && nfct_nat(ct)) {
+               if (ct && (ct->status & IPS_NAT_MASK)) {
                        bool mangled;
+
                        /* If mangling fails this function will return 0
                         * which will cause the packet to be dropped.
                         * Mangling can only fail under memory pressure,