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authorPatrick McHardy <kaber@trash.net>2008-03-25 20:16:54 -0700
committerDavid S. Miller <davem@davemloft.net>2008-03-25 20:16:54 -0700
commit2a6cfb22ae002330d445f734668d9158db9e90de (patch)
tree5d05dcfcfdc1df571b5c502b5df314debd7a19ce /include/linux
parentb1ec488b1fb3c7a8819857e3506787516ca1ed4d (diff)
[NETFILTER]: nf_conntrack_sip: adjust dptr and datalen after packet mangling
After mangling the packet, the pointer to the data and the length of the data portion may change and need to be adjusted. Use double data pointers and a pointer to the length everywhere and add a helper function to the NAT helper for performing the adjustments. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/netfilter/nf_conntrack_sip.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index 8e5ce1ca7bf..9d0dbfb2630 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -24,11 +24,13 @@ enum sip_header_pos {
extern unsigned int (*nf_nat_sip_hook)(struct sk_buff *skb,
enum ip_conntrack_info ctinfo,
struct nf_conn *ct,
- const char **dptr);
+ const char **dptr,
+ unsigned int *datalen);
extern unsigned int (*nf_nat_sdp_hook)(struct sk_buff *skb,
enum ip_conntrack_info ctinfo,
struct nf_conntrack_expect *exp,
- const char *dptr);
+ const char **dptr,
+ unsigned int *datalen);
extern int ct_sip_get_info(const struct nf_conn *ct, const char *dptr,
size_t dlen, unsigned int *matchoff,