From: Liping Zhang <liping.zhang@xxxxxxxxxxxxxx>
When I want to translate SNAT target to nft rule, an error message
was printed out:
# iptables-translate -A POSTROUTING -j SNAT --to-source 1.1.1.1
iptables-translate v1.6.0: OOM
Because ipt_natinfo{} started with a xt_entry_target{}, so when we
get the ipt_natinfo pointer, we should use the target itself,
not its data pointer. Yes, it is a little tricky and it's different
with other targets.
Fixes: 7a0992da44cf ("src: introduce struct xt_xlate_{mt,tg}_params")
Signed-off-by: Liping Zhang <liping.zhang@xxxxxxxxxxxxxx>
---
extensions/libipt_DNAT.c | 2 +-
extensions/libipt_SNAT.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/extensions/libipt_DNAT.c b/extensions/libipt_DNAT.c
index c463f07..7890719 100644
--- a/extensions/libipt_DNAT.c
+++ b/extensions/libipt_DNAT.c
@@ -265,7 +265,7 @@ static void print_range_xlate(const struct nf_nat_ipv4_range *r,
static int DNAT_xlate(struct xt_xlate *xl,
const struct xt_xlate_tg_params *params)
{
- const struct ipt_natinfo *info = (const void *)params->target->data;
+ const struct ipt_natinfo *info = (const void *)params->target;
unsigned int i = 0;
bool sep_need = false;
const char *sep = " ";
diff --git a/extensions/libipt_SNAT.c b/extensions/libipt_SNAT.c
index 71717fd..5c699d3 100644
--- a/extensions/libipt_SNAT.c
+++ b/extensions/libipt_SNAT.c
@@ -276,7 +276,7 @@ static void print_range_xlate(const struct nf_nat_ipv4_range *r,
static int SNAT_xlate(struct xt_xlate *xl,
const struct xt_xlate_tg_params *params)
{
- const struct ipt_natinfo *info = (const void *)params->target->data;
+ const struct ipt_natinfo *info = (const void *)params->target;
unsigned int i = 0;
bool sep_need = false;
const char *sep = " ";
--
2.5.5
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