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| author | Florian Westphal <fw@strlen.de> | 2022-03-14 18:23:12 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-03-20 00:29:47 +0100 |
| commit | 3c1eb413a45b6c6327fed394705081ec6202b31a (patch) | |
| tree | ab613ed42f5060095314843bb32a770677647c6e /include/net/netfilter | |
| parent | 611580d2df1f873e035f3dca109e5fa27448e0c7 (diff) | |
| download | lwn-3c1eb413a45b6c6327fed394705081ec6202b31a.tar.gz lwn-3c1eb413a45b6c6327fed394705081ec6202b31a.zip | |
netfilter: nft_fib: add reduce support
The fib expression stores to a register, so we can't add empty stub.
Check that the register that is being written is in fact redundant.
In most cases, this is expected to cancel tracking as re-use is
unlikely.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter')
| -rw-r--r-- | include/net/netfilter/nft_fib.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/netfilter/nft_fib.h b/include/net/netfilter/nft_fib.h index 237f3757637e..eed099eae672 100644 --- a/include/net/netfilter/nft_fib.h +++ b/include/net/netfilter/nft_fib.h @@ -37,4 +37,7 @@ void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs, void nft_fib_store_result(void *reg, const struct nft_fib *priv, const struct net_device *dev); + +bool nft_fib_reduce(struct nft_regs_track *track, + const struct nft_expr *expr); #endif |