When alloc_null_binding(), no IP_NAT_RNAGE_MAP_IPS in flags means no IP address
translation is needed. It isn't necessary to specify the address explicitly.
Signed-off-by: Changli Gao <xiaosuo@xxxxxxxxx>
---
v2: Initialize range.flags only instead of the whole structure.
net/ipv4/netfilter/nf_nat_rule.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c
index ebbd319..21c3042 100644
--- a/net/ipv4/netfilter/nf_nat_rule.c
+++ b/net/ipv4/netfilter/nf_nat_rule.c
@@ -106,16 +106,15 @@ alloc_null_binding(struct nf_conn *ct, unsigned int hooknum)
{
/* Force range to this IP; let proto decide mapping for
per-proto parts (hence not IP_NAT_RANGE_PROTO_SPECIFIED).
- Use reply in case it's already been mangled (eg local packet).
*/
- __be32 ip
- = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
- ? ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip
- : ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip);
- struct nf_nat_range range
- = { IP_NAT_RANGE_MAP_IPS, ip, ip, { 0 }, { 0 } };
-
- pr_debug("Allocating NULL binding for %p (%pI4)\n", ct, &ip);
+ struct nf_nat_range range;
+
+ range.flags = 0;
+ pr_debug("Allocating NULL binding for %p (%pI4)\n", ct,
+ HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC ?
+ &ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip :
+ &ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip);
+
return nf_nat_setup_info(ct, &range, HOOK2MANIP(hooknum));
}
--
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