Fix Passive FTP problem in ip_vs_ftp:
- Do not oops in nf_nat_set_seq_adjust (adjust_tcp_sequence) when
iptable_nat module is not loaded
Signed-off-by: Julian Anastasov <ja@xxxxxx>
---
This patch is for 2.6.36
--- v2.6.36-rc2/linux/net/netfilter/ipvs/ip_vs_ftp.c 2010-09-02 00:45:54.000000000 +0300
+++ linux/net/netfilter/ipvs/ip_vs_ftp.c 2010-09-02 02:12:52.000000000 +0300
@@ -45,6 +45,7 @@
#include <linux/netfilter.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_expect.h>
+#include <net/netfilter/nf_nat.h>
#include <net/netfilter/nf_nat_helper.h>
#include <linux/gfp.h>
#include <net/protocol.h>
@@ -359,7 +360,7 @@ static int ip_vs_ftp_out(struct ip_vs_ap
buf_len = strlen(buf);
ct = nf_ct_get(skb, &ctinfo);
- if (ct && !nf_ct_is_untracked(ct)) {
+ if (ct && !nf_ct_is_untracked(ct) && nfct_nat(ct)) {
/* If mangling fails this function will return 0
* which will cause the packet to be dropped.
* Mangling can only fail under memory pressure,
--
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