netfilter: nftables: counter hardware offload support

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This patch adds the .offload_stats operation to synchronize hardware
stats with the expression data. Update the counter expression to use
this new interface. The hardware stats are retrieved from the netlink
dump path via FLOW_CLS_STATS command to the driver.

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

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This commit is contained in:

Pablo Neira Ayuso 2021-04-15 20:10:18 +02:00

parent 8826218215

commit b72920f6e4

5 changed files with 72 additions and 7 deletions

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2

include/net/netfilter/nf_tables.h

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1

include/net/netfilter/nf_tables_offload.h

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3

net/netfilter/nf_tables_api.c

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44

net/netfilter/nf_tables_offload.c

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29

net/netfilter/nft_counter.c

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