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

100       tapset::netfilter(3stap)
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104SystemTap Tapset Reference         June 2018         PROBE::NETFILTER.I(3stap)
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