From 7f027e82d7a21f8b088bcc7c838774071e79b89b Mon Sep 17 00:00:00 2001 From: Laura Garcia Liebana Date: Fri, 4 Nov 2016 13:59:31 +0100 Subject: src: make hash seed attribute optional The hash expression requires a seed attribute to call the jhash operation, eg. # nft add rule x y meta mark set jhash ip saddr . ip daddr mod 2 \ seed 0xdeadbeef With this patch the seed attribute is optional and it's generated by a random function from userspace, eg. # nft add rule x y meta mark set jhash ip saddr . ip daddr mod 2 The kernel will take care of generate a random seed. Signed-off-by: Laura Garcia Liebana Signed-off-by: Pablo Neira Ayuso --- src/parser_bison.y | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/parser_bison.y') diff --git a/src/parser_bison.y b/src/parser_bison.y index 17f23c5b..82fec99c 100644 --- a/src/parser_bison.y +++ b/src/parser_bison.y @@ -2585,6 +2585,11 @@ hash_expr : JHASH expr MOD NUM SEED NUM $$ = hash_expr_alloc(&@$, $4, $6); $$->hash.expr = $2; } + | JHASH expr MOD NUM + { + $$ = hash_expr_alloc(&@$, $4, 0); + $$->hash.expr = $2; + } ; rt_expr : RT rt_key -- cgit v1.2.3