path: root/include/hash.h
diff options
authorLiping Zhang <>2017-04-15 17:22:17 +0800
committerPablo Neira Ayuso <>2017-04-15 11:30:08 +0200
commite2b25ccc31b8262a0739b46337fbb354e00aa1d6 (patch)
tree05db8f700716c22ef19ff6153807a173d17a8821 /include/hash.h
parentcd3877cd4a7c4943dc29c274366795f02c42feb0 (diff)
hash: generate a random seed if seed option is empty
Typing the "nft add rule x y ct mark set jhash ip saddr mod 2" will not generate a random seed, instead, the seed will always be zero. So if seed option is empty, we shoulde not set the NFTA_HASH_SEED attribute, then a random seed will be generated in the kernel. Signed-off-by: Liping Zhang <> Signed-off-by: Pablo Neira Ayuso <>
Diffstat (limited to 'include/hash.h')
1 files changed, 4 insertions, 2 deletions
diff --git a/include/hash.h b/include/hash.h
index 7f9c6f13..693d08a2 100644
--- a/include/hash.h
+++ b/include/hash.h
@@ -2,7 +2,9 @@
extern struct expr *hash_expr_alloc(const struct location *loc,
- uint32_t modulus, uint32_t seed,
- uint32_t offset, enum nft_hash_types type);
+ uint32_t modulus,
+ bool seed_set, uint32_t seed,
+ uint32_t offset,
+ enum nft_hash_types type);
#endif /* NFTABLES_HASH_H */