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authorPatrick McHardy2012-08-26 19:14:04 +0200
committerPablo Neira Ayuso2012-08-30 03:00:13 +0200
commit051966c0c644a1c96092d4206e00704ade813c9a (patch)
tree9ca8005f3e2a91cbd710b1f2eb52f49bf5f19f84 /net/ipv4/netfilter/nf_nat_ftp.c
parentnetfilter: nf_conntrack: restrict NAT helper invocation to IPv4 (diff)
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netfilter: nf_nat: add protoff argument to packet mangling functions
For mangling IPv6 packets the protocol header offset needs to be known by the NAT packet mangling functions. Add a so far unused protoff argument and convert the conntrack and NAT helpers to use it in preparation of IPv6 NAT. Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/ipv4/netfilter/nf_nat_ftp.c')
-rw-r--r--net/ipv4/netfilter/nf_nat_ftp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/nf_nat_ftp.c b/net/ipv4/netfilter/nf_nat_ftp.c
index e462a957d080..5589f3af4a8e 100644
--- a/net/ipv4/netfilter/nf_nat_ftp.c
+++ b/net/ipv4/netfilter/nf_nat_ftp.c
@@ -55,6 +55,7 @@ static int nf_nat_ftp_fmt_cmd(enum nf_ct_ftp_type type,
static unsigned int nf_nat_ftp(struct sk_buff *skb,
enum ip_conntrack_info ctinfo,
enum nf_ct_ftp_type type,
+ unsigned int protoff,
unsigned int matchoff,
unsigned int matchlen,
struct nf_conntrack_expect *exp)
@@ -100,7 +101,7 @@ static unsigned int nf_nat_ftp(struct sk_buff *skb,
pr_debug("calling nf_nat_mangle_tcp_packet\n");
- if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, matchoff,
+ if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo, protoff, matchoff,
matchlen, buffer, buflen))
goto out;