Name

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

Synopsis

netfilter.ip.pre_routing 

Values

pf

Protocol family - either 'ipv4' or 'ipv6'

nf_accept

Constant used to signify an 'accept' verdict

daddr

A string representing the destination IP address

indev

Address of net_device representing input device, 0 if unknown

ack

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

sport

TCP or UDP source port (ipv4 only)

ipproto_udp

Constant used to signify that the packet protocol is UDP

dport

TCP or UDP destination port (ipv4 only)

nf_stop

Constant used to signify a 'stop' verdict

nf_drop

Constant used to signify a 'drop' verdict

urg

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

length

The length of the packet buffer contents, in bytes

protocol

Packet protocol from driver (ipv4 only)

iphdr

Address of IP header

fin

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

psh

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

rst

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

ipproto_tcp

Constant used to signify that the packet protocol is TCP

nf_repeat

Constant used to signify a 'repeat' verdict

saddr

A string representing the source IP address

nf_stolen

Constant used to signify a 'stolen' verdict

indev_name

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

outdev

Address of net_device representing output device, 0 if unknown

outdev_name

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

family

IP address family

nf_queue

Constant used to signify a 'queue' verdict

syn

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