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PROBE::NETFILTER.I(3stap) Networking Tapset PROBE::NETFILTER.I(3stap)

NAME

probe::netfilter.ip.post_routing - Called immediately before an outgoing IP packet leaves the computer

SYNOPSIS

netfilter.ip.post_routing

VALUES

indev

Address of net_device representing input device, 0 if unknown

daddr

A string representing the destination IP address

psh

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

nf_drop

Constant used to signify a 'drop' verdict

saddr

A string representing the source IP address

outdev

Address of net_device representing output device, 0 if unknown

family

IP address family

nf_queue

Constant used to signify a 'queue' verdict

nf_stop

Constant used to signify a 'stop' verdict

protocol

Packet protocol from driver (ipv4 only)

ipproto_udp

Constant used to signify that the packet protocol is UDP

nf_accept

Constant used to signify an 'accept' verdict

indev_name

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

syn

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

nf_stolen

Constant used to signify a 'stolen' verdict

nf_repeat

Constant used to signify a 'repeat' verdict

iphdr

Address of IP header

length

The length of the packet buffer contents, in bytes

data_hex

A hexadecimal string representing the packet buffer contents

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)

sport

TCP or UDP source port (ipv4 only)

data_str

A string representing the packet buffer contents

rst

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

fin

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

dport

TCP or UDP destination port (ipv4 only)

ipproto_tcp

Constant used to signify that the packet protocol is TCP

outdev_name

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

SEE ALSO0

tapset::netfilter(3stap)

November 2024 SystemTap Tapset Reference