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