From be5d9120e81e4a9a6d44457990112f30d0d214bb Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sat, 26 Mar 2016 10:04:48 +0000 Subject: nft monitor [ trace ] MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ... can now display nftables nftrace debug information. $ nft filter input tcp dport 10000 nftrace set 1 $ nft filter input icmp type echo-request nftrace set 1 $ nft -nn monitor trace trace id e1f5055f ip filter input packet: iif eth0 ether saddr 63:f6:4b:00:54:52 ether daddr c9:4b:a9:00:54:52 ip saddr 192.168.122.1 ip daddr 192.168.122.83 ip tos 0 ip ttl 64 ip id 32315 ip length 84 icmp type echo-request icmp code 0 icmp id 10087 icmp sequence 1 trace id e1f5055f ip filter input rule icmp type echo-request nftrace set 1 (verdict continue) trace id e1f5055f ip filter input verdict continue trace id e1f5055f ip filter input trace id 74e47ad2 ip filter input packet: iif vlan0 ether saddr 63:f6:4b:00:54:52 ether daddr c9:4b:a9:00:54:52 vlan pcp 0 vlan cfi 1 vlan id 1000 ip saddr 10.0.0.1 ip daddr 10.0.0.2 ip tos 0 ip ttl 64 ip id 49030 ip length 84 icmp type echo-request icmp code 0 icmp id 10095 icmp sequence 1 trace id 74e47ad2 ip filter input rule icmp type echo-request nftrace set 1 (verdict continue) trace id 74e47ad2 ip filter input verdict continue trace id 74e47ad2 ip filter input trace id 3030de23 ip filter input packet: iif vlan0 ether saddr 63:f6:4b:00:54:52 ether daddr c9:4b:a9:00:54:52 vlan pcp 0 vlan cfi 1 vlan id 1000 ip saddr 10.0.0.1 ip daddr 10.0.0.2 ip tos 16 ip ttl 64 ip id 59062 ip length 60 tcp sport 55438 tcp dport 10000 tcp flags == syn tcp window 29200 trace id 3030de23 ip filter input rule tcp dport 10000 nftrace set 1 (verdict continue) trace id 3030de23 ip filter input verdict continue trace id 3030de23 ip filter input Based on a patch from Florian Westphal, which again was based on a patch from Markus Kötter. Signed-off-by: Patrick McHardy --- src/payload.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/payload.c') diff --git a/src/payload.c b/src/payload.c index 0bbfb542..ac0e917a 100644 --- a/src/payload.c +++ b/src/payload.c @@ -142,6 +142,11 @@ void payload_init_raw(struct expr *expr, enum proto_bases base, expr->len = len; } +unsigned int payload_hdr_field(const struct expr *expr) +{ + return expr->payload.tmpl - expr->payload.desc->templates; +} + static void payload_stmt_print(const struct stmt *stmt) { expr_print(stmt->payload.expr); -- cgit v1.2.3