1PROBE::NETFILTER.I(3stap)      Networking Tapset     PROBE::NETFILTER.I(3stap)
2
3
4

NAME

6       probe::netfilter.ip.pre_routing - Called before an IP packet is routed
7

SYNOPSIS

9       netfilter.ip.pre_routing
10

VALUES

12       data_str
13           A string representing the packet buffer contents
14
15       nf_queue
16           Constant used to signify a 'queue' verdict
17
18       length
19           The length of the packet buffer contents, in bytes
20
21       fin
22           TCP FIN flag (if protocol is TCP; ipv4 only)
23
24       nf_drop
25           Constant used to signify a 'drop' verdict
26
27       indev_name
28           Name of network device packet was received on (if known)
29
30       saddr
31           A string representing the source IP address
32
33       pf
34           Protocol family - either 'ipv4' or 'ipv6'
35
36       syn
37           TCP SYN flag (if protocol is TCP; ipv4 only)
38
39       nf_stop
40           Constant used to signify a 'stop' verdict
41
42       daddr
43           A string representing the destination IP address
44
45       psh
46           TCP PSH flag (if protocol is TCP; ipv4 only)
47
48       outdev_name
49           Name of network device packet will be routed to (if known)
50
51       protocol
52           Packet protocol from driver (ipv4 only)
53
54       urg
55           TCP URG flag (if protocol is TCP; ipv4 only)
56
57       ack
58           TCP ACK flag (if protocol is TCP; ipv4 only)
59
60       rst
61           TCP RST flag (if protocol is TCP; ipv4 only)
62
63       family
64           IP address family
65
66       dport
67           TCP or UDP destination port (ipv4 only)
68
69       iphdr
70           Address of IP header
71
72       ipproto_tcp
73           Constant used to signify that the packet protocol is TCP
74
75       nf_repeat
76           Constant used to signify a 'repeat' verdict
77
78       ipproto_udp
79           Constant used to signify that the packet protocol is UDP
80
81       nf_stolen
82           Constant used to signify a 'stolen' verdict
83
84       outdev
85           Address of net_device representing output device, 0 if unknown
86
87       sport
88           TCP or UDP source port (ipv4 only)
89
90       nf_accept
91           Constant used to signify an 'accept' verdict
92
93       indev
94           Address of net_device representing input device, 0 if unknown
95
96       data_hex
97           A hexadecimal string representing the packet buffer contents
98

SEE ALSO

100       tapset::netfilter(3stap)
101
102
103
104SystemTap Tapset Reference       November 2022       PROBE::NETFILTER.I(3stap)
Impressum