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

100       tapset::netfilter(3stap)
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104SystemTap Tapset Reference         May 2021          PROBE::NETFILTER.I(3stap)
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