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

SEE ALSO

100       tapset::netfilter(3stap)
101
102
103
104SystemTap Tapset Reference       November 2019       PROBE::NETFILTER.I(3stap)
Impressum