Name

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

Synopsis

netfilter.ip.pre_routing 

Values

nf_stop

Constant used to signify a 'stop' verdict

ack

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

rst

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

syn

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

daddr

A string representing the destination IP address

protocol

Packet protocol from driver (ipv4 only)

ipproto_udp

Constant used to signify that the packet protocol is UDP

sport

TCP or UDP source port (ipv4 only)

iphdr

Address of IP header

fin

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

urg

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

data_str

A string representing the packet buffer contents

dport

TCP or UDP destination port (ipv4 only)

outdev_name

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

data_hex

A hexadecimal string representing the packet buffer contents

outdev

Address of net_device representing output device, 0 if unknown

nf_stolen

Constant used to signify a 'stolen' verdict

nf_repeat

Constant used to signify a 'repeat' verdict

psh

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

ipproto_tcp

Constant used to signify that the packet protocol is TCP

nf_drop

Constant used to signify a 'drop' verdict

saddr

A string representing the source IP address

nf_accept

Constant used to signify an 'accept' verdict

nf_queue

Constant used to signify a 'queue' verdict

family

IP address family

pf

Protocol family - either 'ipv4' or 'ipv6'

indev

Address of net_device representing input device, 0 if unknown

indev_name

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

length

The length of the packet buffer contents, in bytes