netfilter: nft_nat: add netmap support

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This patch allows you to NAT the network address prefix onto another
network address prefix, a.k.a. netmapping.

Userspace must specify the NF_NAT_RANGE_NETMAP flag and the prefix
address through the NFTA_NAT_REG_ADDR_MIN and NFTA_NAT_REG_ADDR_MAX
netlink attributes.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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This commit is contained in:

Pablo Neira Ayuso 2020-04-24 21:55:37 +02:00

parent acd766e31b

commit 3ff7ddb135

2 changed files with 48 additions and 2 deletions

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4

include/uapi/linux/netfilter/nf_nat.h

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46

net/netfilter/nft_nat.c

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