netfilter: nf_conntrack: restrict NAT helper invocation to IPv4

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The NAT helpers currently only handle IPv4 packets correctly. Restrict
invocation of the helpers to IPv4 in preparation of IPv6 NAT.

Signed-off-by: Patrick McHardy <kaber@trash.net>

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Patrick McHardy 2012-08-26 19:14:01 +02:00 • committed by Pablo Neira Ayuso

parent 2b60af0178

commit 811927ccfe

6 changed files with 49 additions and 22 deletions

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3

net/netfilter/nf_conntrack_amanda.c

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3

net/netfilter/nf_conntrack_ftp.c

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41

net/netfilter/nf_conntrack_h323_main.c

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3

net/netfilter/nf_conntrack_irc.c

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18

net/netfilter/nf_conntrack_sip.c

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3

net/netfilter/nf_conntrack_tftp.c

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