undump.bt - Man Page
Catch UNIX domain socket packages. Uses bpftrace/eBPF.
Synopsis
undump.bt
Description
undump.bt tracked reception of UNIX domain sockets.
This program is also a basic example of bpftrace and kprobes.
Since this uses BPF, only the root user can use this tool.
Requirements
CONFIG_BPF and bpftrace.
Examples
- Trace reception of UNIX domain sockets:
# undump.bt
Fields
- TIME
A timestamp on the output, in "HH:MM:SS" format.
- COMM
The process COMM.
- PID
The process ID.
- SIZE
The size of the received packet, in bytes.
- DATA
Display received packets in hex or string.
Overhead
The overhead of this program mainly comes from the data packets received by the terminal output.
Source
This is from bpftrace.
https://github.com/iovisor/bpftrace
Also look in the bpftrace distribution for a companion _examples.txt file containing example usage, output, and commentary for this tool.
This is a bpftrace version of the bcc examples/tracing of the same name. The bcc tool may provide more options and customizations.
OS
Linux
Stability
Unstable - in development.
Author
Rong Tao