bcc-spfdsnoop(8)

1sofdsnoop(8)                System Manager's Manual               sofdsnoop(8)
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NAME

6       sofdsnoop - Trace FDs passed through unix sockets. Uses Linux eBPF/bcc.
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SYNOPSIS

9       sofdsnoop [-h] [-T] [-p PID] [-t TID] [-n NAME] [-d DURATION]
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DESCRIPTION

12       sofdsnoop traces FDs passed through unix sockets
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14       Every  file  descriptor that is passed via unix sockets os displayed on
15       separate line together with process  info  (TID/COMM  columns),  ACTION
16       details (SEND/RECV), file descriptor number (FD) and its translation to
17       file if available (NAME).
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19       Since this uses BPF, only the root user can use this tool.
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REQUIREMENTS

22       CONFIG_BPF and bcc.
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OPTIONS

25       -h     Print usage message.
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27       -T     Include a timestamp column.
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29       -p PID Trace this process ID only (filtered in-kernel).
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31       -t TID Trace this thread ID only (filtered in-kernel).
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33       -d DURATION
34              Total duration of trace in seconds.
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36       -n NAME
37              Only print command lines matching this command name (regex)
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EXAMPLES

40       Trace all sockets:
41              # sofdsnoop
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43       Trace all sockets, and include timestamps:
44              # sofdsnoop -T
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46       Only trace sockets where the process contains "server":
47              # sofdsnoop -n server
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FIELDS

50       TIME(s)
51              Time of SEDN/RECV actions, in seconds.
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53       ACTION Operation on the fd SEND/RECV.
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55       TID    Process TID
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57       COMM   Parent process/command name.
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59       SOCKET The socket carrier.
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61       FD     file descriptor number
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63       NAME   file name for SEND lines
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SOURCE

66       This is from bcc.
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68              https://github.com/iovisor/bcc
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70       Also look in the bcc distribution for a  companion  _examples.txt  file
71       containing example usage, output, and commentary for this tool.
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OS

74       Linux
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STABILITY

77       Unstable - in development.
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AUTHOR

80       Jiri Olsa
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