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

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

9       netfilter.ip.pre_routing
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VALUES

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

100       tapset::netfilter(3stap)
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104SystemTap Tapset Reference       November 2020       PROBE::NETFILTER.I(3stap)
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