probe::netfilter.ip.pre_routing
Prev Chapter 13. Networking Tapset Next

Name

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

Synopsis

netfilter.ip.pre_routing

Values

nf_drop

Constant used to signify a 'drop' verdict

nf_accept

Constant used to signify an 'accept' verdict

family

IP address family

nf_stop

Constant used to signify a 'stop' verdict

ipproto_udp

Constant used to signify that the packet protocol is UDP

urg

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

pf

Protocol family - either 'ipv4' or 'ipv6'

ack

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

outdev

Address of net_device representing output device, 0 if unknown

rst

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

nf_queue

Constant used to signify a 'queue' verdict

data_str

A string representing the packet buffer contents

iphdr

Address of IP header

fin

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

indev_name

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

saddr

A string representing the source IP address

dport

TCP or UDP destination port (ipv4 only)

syn

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

nf_stolen

Constant used to signify a 'stolen' verdict

daddr

A string representing the destination IP address

indev

Address of net_device representing input device, 0 if unknown

sport

TCP or UDP source port (ipv4 only)

length

The length of the packet buffer contents, in bytes

ipproto_tcp

Constant used to signify that the packet protocol is TCP

data_hex

A hexadecimal string representing the packet buffer contents

nf_repeat

Constant used to signify a 'repeat' verdict

protocol

Packet protocol from driver (ipv4 only)

outdev_name

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

psh

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

Prev Up Next
probe::netfilter.ip.post_routing Home probe::sunrpc.clnt.bind_new_program