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 ipproto_udp
13 Constant used to signify that the packet protocol is UDP
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15 pf
16 Protocol family - either 'ipv4' or 'ipv6'
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18 dport
19 TCP or UDP destination port (ipv4 only)
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21 family
22 IP address family
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24 indev_name
25 Name of network device packet was received on (if known)
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27 nf_stolen
28 Constant used to signify a 'stolen' verdict
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30 indev
31 Address of net_device representing input device, 0 if unknown
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33 protocol
34 Packet protocol from driver (ipv4 only)
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36 fin
37 TCP FIN flag (if protocol is TCP; ipv4 only)
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39 ack
40 TCP ACK flag (if protocol is TCP; ipv4 only)
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42 psh
43 TCP PSH flag (if protocol is TCP; ipv4 only)
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45 ipproto_tcp
46 Constant used to signify that the packet protocol is TCP
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48 nf_stop
49 Constant used to signify a 'stop' verdict
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51 urg
52 TCP URG flag (if protocol is TCP; ipv4 only)
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54 outdev
55 Address of net_device representing output device, 0 if unknown
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57 saddr
58 A string representing the source IP address
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60 syn
61 TCP SYN flag (if protocol is TCP; ipv4 only)
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63 length
64 The length of the packet buffer contents, in bytes
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66 nf_accept
67 Constant used to signify an 'accept' verdict
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69 iphdr
70 Address of IP header
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72 sport
73 TCP or UDP source port (ipv4 only)
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75 nf_repeat
76 Constant used to signify a 'repeat' verdict
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78 nf_queue
79 Constant used to signify a 'queue' verdict
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81 data_str
82 A string representing the packet buffer contents
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84 daddr
85 A string representing the destination IP address
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87 outdev_name
88 Name of network device packet will be routed to (if known)
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90 data_hex
91 A hexadecimal string representing the packet buffer contents
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93 nf_drop
94 Constant used to signify a 'drop' verdict
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96 rst
97 TCP RST flag (if protocol is TCP; ipv4 only)
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100 tapset::netfilter(3stap)
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104SystemTap Tapset Reference November 2019 PROBE::NETFILTER.I(3stap)