[NETFILTER]: nf_conntrack_sip: adjust dptr and datalen after packet mangling

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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>

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Patrick McHardy 2008-03-25 20:16:54 -07:00 • committed by David S. Miller

parent b1ec488b1f

commit 2a6cfb22ae

3 changed files with 60 additions and 51 deletions

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include/linux/netfilter/nf_conntrack_sip.h

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