1PROBE::NETFILTER.I(3stap) Networking Tapset PROBE::NETFILTER.I(3stap)
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6 probe::netfilter.ip.forward - Called on an incoming IP packet addressed
7 to some other computer
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10 netfilter.ip.forward
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13 outdev
14 Address of net_device representing output device, 0 if unknown
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16 urg
17 TCP URG flag (if protocol is TCP; ipv4 only)
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19 nf_stop
20 Constant used to signify a 'stop' verdict
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22 syn
23 TCP SYN flag (if protocol is TCP; ipv4 only)
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25 saddr
26 A string representing the source IP address
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28 fin
29 TCP FIN flag (if protocol is TCP; ipv4 only)
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31 protocol
32 Packet protocol from driver (ipv4 only)
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34 ipproto_tcp
35 Constant used to signify that the packet protocol is TCP
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37 psh
38 TCP PSH flag (if protocol is TCP; ipv4 only)
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40 ack
41 TCP ACK flag (if protocol is TCP; ipv4 only)
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43 indev
44 Address of net_device representing input device, 0 if unknown
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46 nf_stolen
47 Constant used to signify a 'stolen' verdict
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49 indev_name
50 Name of network device packet was received on (if known)
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52 dport
53 TCP or UDP destination port (ipv4 only)
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55 family
56 IP address family
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58 pf
59 Protocol family -- either “ipv4” or “ipv6”
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61 ipproto_udp
62 Constant used to signify that the packet protocol is UDP
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64 rst
65 TCP RST flag (if protocol is TCP; ipv4 only)
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67 nf_drop
68 Constant used to signify a 'drop' verdict
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70 data_str
71 A string representing the packet buffer contents
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73 data_hex
74 A hexadecimal string representing the packet buffer contents
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76 outdev_name
77 Name of network device packet will be routed to (if known)
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79 daddr
80 A string representing the destination IP address
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82 nf_repeat
83 Constant used to signify a 'repeat' verdict
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85 sport
86 TCP or UDP source port (ipv4 only)
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88 nf_queue
89 Constant used to signify a 'queue' verdict
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91 length
92 The length of the packet buffer contents, in bytes
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94 iphdr
95 Address of IP header
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97 nf_accept
98 Constant used to signify an 'accept' verdict
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101 tapset::netfilter(3stap)
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105SystemTap Tapset Reference November 2019 PROBE::NETFILTER.I(3stap)