probe::netfilter.ip.pre_routing — Called before an IP packet is routed
netfilter.ip.pre_routing
sport
TCP or UDP source port (ipv4 only)
fin
TCP FIN flag (if protocol is TCP; ipv4 only)
syn
TCP SYN flag (if protocol is TCP; ipv4 only)
length
The length of the packet buffer contents, in bytes
dport
TCP or UDP destination port (ipv4 only)
protocol
Packet protocol from driver (ipv4 only)
urg
TCP URG flag (if protocol is TCP; ipv4 only)
iphdr
Address of IP header
rst
TCP RST flag (if protocol is TCP; ipv4 only)
nf_repeat
Constant used to signify a 'repeat' verdict
data_str
A string representing the packet buffer contents
nf_drop
Constant used to signify a 'drop' verdict
nf_stop
Constant used to signify a 'stop' verdict
indev
Address of net_device representing input device, 0 if unknown
indev_name
Name of network device packet was received on (if known)
saddr
A string representing the source IP address
nf_queue
Constant used to signify a 'queue' verdict
ack
TCP ACK flag (if protocol is TCP; ipv4 only)
ipproto_udp
Constant used to signify that the packet protocol is UDP
family
IP address family
daddr
A string representing the destination IP address
outdev
Address of net_device representing output device, 0 if unknown
psh
TCP PSH flag (if protocol is TCP; ipv4 only)
outdev_name
Name of network device packet will be routed to (if known)
ipproto_tcp
Constant used to signify that the packet protocol is TCP
data_hex
A hexadecimal string representing the packet buffer contents
nf_accept
Constant used to signify an 'accept' verdict
nf_stolen
Constant used to signify a 'stolen' verdict
pf
Protocol family - either 'ipv4' or 'ipv6'