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Capture unix socket to pcap file with socat and tshark
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| #!/bin/bash | |
| # Parameters | |
| socket="/run/foo.sock" | |
| dump="/tmp/capture.pcap" | |
| # Extract repetition | |
| port=9876 | |
| source_socket="$(dirname "${socket}")/$(basename "${socket}").orig" | |
| # Move socket files | |
| mv "${socket}" "${source_socket}" | |
| trap "{ rm '${socket}'; mv '${source_socket}' '${socket}'; }" EXIT | |
| # Setup pipe over TCP that we can tap into | |
| socat -t100 "TCP-LISTEN:${port},reuseaddr,fork" "UNIX-CONNECT:${source_socket}" & | |
| socat -t100 "UNIX-LISTEN:${socket},mode=777,reuseaddr,fork" "TCP:localhost:${port}" & | |
| # Record traffic | |
| tshark -i lo -w "${dump}" -F pcapng "dst port ${port} or src port ${port}" |
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