probe::netfilter.ip.pre_routing — Called before an IP packet is routed
netfilter.ip.pre_routing
outdev
Address of net_device representing output device, 0 if unknown
indev
Address of net_device representing input device, 0 if unknown
nf_accept
Constant used to signify an 'accept' verdict
rst
TCP RST flag (if protocol is TCP; ipv4 only)
daddr
A string representing the destination IP address
data_str
A string representing the packet buffer contents
family
IP address family
nf_queue
Constant used to signify a 'queue' verdict
psh
TCP PSH flag (if protocol is TCP; ipv4 only)
data_hex
A hexadecimal string representing the packet buffer contents
length
The length of the packet buffer contents, in bytes
sport
TCP or UDP source port (ipv4 only)
syn
TCP SYN flag (if protocol is TCP; ipv4 only)
protocol
Packet protocol from driver (ipv4 only)
saddr
A string representing the source IP address
nf_repeat
Constant used to signify a 'repeat' verdict
ipproto_tcp
Constant used to signify that the packet protocol is TCP
nf_stolen
Constant used to signify a 'stolen' verdict
nf_stop
Constant used to signify a 'stop' verdict
ack
TCP ACK flag (if protocol is TCP; ipv4 only)
nf_drop
Constant used to signify a 'drop' verdict
iphdr
Address of IP header
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'
indev_name
Name of network device packet was received on (if known)
fin
TCP FIN flag (if protocol is TCP; ipv4 only)
outdev_name
Name of network device packet will be routed to (if known)
dport
TCP or UDP destination port (ipv4 only)