| PROBE::NETFILTER.I(3stap) | Networking Tapset | PROBE::NETFILTER.I(3stap) |
NAME¶
probe::netfilter.ip.pre_routing - Called before an IP packet is routed
SYNOPSIS¶
netfilter.ip.pre_routing
VALUES¶
indev
Address of net_device representing input device, 0 if
unknown
sport
TCP or UDP source port (ipv4 only)
pf
Protocol family - either 'ipv4' or 'ipv6'
outdev
Address of net_device representing output device, 0 if
unknown
ipproto_tcp
Constant used to signify that the packet protocol is
TCP
family
IP address family
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
data_hex
A hexadecimal string representing the packet buffer
contents
nf_accept
Constant used to signify an 'accept' verdict
indev_name
Name of network device packet was received on (if
known)
urg
TCP URG flag (if protocol is TCP; ipv4 only)
rst
TCP RST flag (if protocol is TCP; ipv4 only)
nf_drop
Constant used to signify a 'drop' verdict
nf_repeat
Constant used to signify a 'repeat' verdict
length
The length of the packet buffer contents, in bytes
iphdr
Address of IP header
data_str
A string representing the packet buffer contents
fin
TCP FIN flag (if protocol is TCP; ipv4 only)
ipproto_udp
Constant used to signify that the packet protocol is
UDP
psh
TCP PSH flag (if protocol is TCP; ipv4 only)
protocol
Packet protocol from driver (ipv4 only)
nf_queue
Constant used to signify a 'queue' verdict
nf_stop
Constant used to signify a 'stop' verdict
daddr
A string representing the destination IP address
outdev_name
Name of network device packet will be routed to (if
known)
saddr
A string representing the source IP address
ack
TCP ACK flag (if protocol is TCP; ipv4 only)
SEE ALSO0¶
tapset::netfilter(3stap)
| April 2024 | SystemTap Tapset Reference |