probe::netfilter.ip.pre_routing.3stap man page

probe::netfilter.ip.pre_routing — Called before an IP packet is routed

Synopsis

netfilter.ip.pre_routing

Values

saddr

A string representing the source IP address

urg

TCP URG flag (if protocol is TCP; ipv4 only)

nf_drop

Constant used to signify a 'drop' verdict

indev_name

Name of network device packet was received on (if known)

nf_stolen

Constant used to signify a 'stolen' verdict

length

The length of the packet buffer contents, in bytes

daddr

A string representing the destination IP address

nf_repeat

Constant used to signify a 'repeat' verdict

protocol

Packet protocol from driver (ipv4 only)

syn

TCP SYN flag (if protocol is TCP; ipv4 only)

rst

TCP RST flag (if protocol is TCP; ipv4 only)

nf_queue

Constant used to signify a 'queue' verdict

ipproto_tcp

Constant used to signify that the packet protocol is TCP

indev

Address of net_device representing input device, 0 if unknown

psh

TCP PSH flag (if protocol is TCP; ipv4 only)

outdev_name

Name of network device packet will be routed to (if known)

pf

Protocol family - either 'ipv4' or 'ipv6'

nf_accept

Constant used to signify an 'accept' verdict

ipproto_udp

Constant used to signify that the packet protocol is UDP

iphdr

Address of IP header

dport

TCP or UDP destination port (ipv4 only)

ack

TCP ACK flag (if protocol is TCP; ipv4 only)

fin

TCP FIN flag (if protocol is TCP; ipv4 only)

outdev

Address of net_device representing output device, 0 if unknown

family

IP address family

sport

TCP or UDP source port (ipv4 only)

nf_stop

Constant used to signify a 'stop' verdict

See Also0

tapset::netfilter(3stap)

Info

March 2016 SystemTap Tapset Reference Networking Tapset