netfilter: nf_tables: Support RULE_ID reference in new rule

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To allow for a batch to contain rules in arbitrary ordering, introduce
NFTA_RULE_POSITION_ID attribute which works just like NFTA_RULE_POSITION
but contains the ID of another rule within the same batch. This helps
iptables-nft-restore handling dumps with mixed insert/append commands
correctly.

Note that NFTA_RULE_POSITION takes precedence over
NFTA_RULE_POSITION_ID, so if the former is present, the latter is
ignored.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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Phil Sutter 2019-01-14 18:41:35 +01:00 • committed by Pablo Neira Ayuso

parent 8e2f311a68

commit 75dd48e2e4

2 changed files with 11 additions and 0 deletions

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2

include/uapi/linux/netfilter/nf_tables.h

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9

net/netfilter/nf_tables_api.c

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