Name

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

Synopsis

netfilter.ip.pre_routing 

Values

ack

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

data_hex

A hexadecimal string representing the packet buffer contents

family

IP address family

rst

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

ipproto_udp

Constant used to signify that the packet protocol is UDP

psh

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

urg

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

indev_name

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

nf_stolen

Constant used to signify a 'stolen' verdict

iphdr

Address of IP header

nf_drop

Constant used to signify a 'drop' verdict

data_str

A string representing the packet buffer contents

nf_accept

Constant used to signify an 'accept' verdict

saddr

A string representing the source IP address

daddr

A string representing the destination IP address

outdev_name

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

nf_repeat

Constant used to signify a 'repeat' verdict

pf

Protocol family - either 'ipv4' or 'ipv6'

nf_stop

Constant used to signify a 'stop' verdict

ipproto_tcp

Constant used to signify that the packet protocol is TCP

indev

Address of net_device representing input device, 0 if unknown

outdev

Address of net_device representing output device, 0 if unknown

fin

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

nf_queue

Constant used to signify a 'queue' verdict

protocol

Packet protocol from driver (ipv4 only)

sport

TCP or UDP source port (ipv4 only)

dport

TCP or UDP destination port (ipv4 only)

syn

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

length

The length of the packet buffer contents, in bytes