1PROBE::NETFILTER.I(3stap) Networking Tapset PROBE::NETFILTER.I(3stap)
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6 probe::netfilter.ip.pre_routing - Called before an IP packet is routed
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9 netfilter.ip.pre_routing
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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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100 tapset::netfilter(3stap)
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104SystemTap Tapset Reference May 2021 PROBE::NETFILTER.I(3stap)