tcpdump_to_db - convert tcpdump textual output to fsdb

NOTE: this page was directly converted from the perl FSDB manual pages from FSDB version 3.1

SYNOPSIS

tcpdump_to_db [-T] < source.tcpdump > target.fsdb

DESCRIPTION

Converts a tcpdump textual data stream to Fsdb format.

Currently it handles only TCP and silently fails on other traffic! Awaiting enhancement… you’re welcome to help.

OPTIONS

-t or –daytime

Adjust times relative to the first timestamp. (Defaults on.)

This module also supports the standard fsdb options:

-d

Enable debugging output.

-i or –input InputSource

Read from InputSource, typically a file name, or - for standard input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.

-o or –output OutputDestination

Write to OutputDestination, typically a file name, or - for standard output, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue objects.

–autorun or –noautorun

By default, programs process automatically, but Fsdb::Filter objects in Perl do not run until you invoke the run() method. The --(no)autorun option controls that behavior within Perl.

--help

Show help.

--man

Show full manual.

SAMPLE USAGE

Input:

14:11:12.556781 dash.isi.edu.1023 > excalibur.usc.edu.ssh: S 2306448962:2306448962(0) win 32120 <mss 1460,sackOK,timestamp 82802652[|tcp]> (DF) 14:11:12.561734 excalibur.usc.edu.ssh > dash.isi.edu.1023: S 1968320001:1968320001(0) ack 2306448963 win 4096 14:11:12.561875 dash.isi.edu.1023 > excalibur.usc.edu.ssh: . ack 1 win 32120 (DF) 14:11:18.746567 excalibur.usc.edu.ssh > dash.isi.edu.1023: P 316:328(12) ack 348 win 4096 14:11:18.755176 dash.isi.edu.1023 > excalibur.usc.edu.ssh: P 348:488(140) ack 328 win 32696 (DF) [tos 0x10] 14:11:18.847937 excalibur.usc.edu.ssh > dash.isi.edu.1023: P 328:468(140) ack 488 win 4096 14:11:18.860047 dash.isi.edu.1023 > excalibur.usc.edu.ssh: . ack 468 win 32696 (DF) [tos 0x10] 14:11:18.936255 dash.isi.edu.1023 > excalibur.usc.edu.ssh: P 488:516(28) ack 468 win 32696 (DF) [tos 0x10]

or a more modern form

17:00:14.808855 IP 10.0.0.172.31738 > 10.1.0.50.telnet: Flags [S], seq 3236187954, win 21463, length 0

Command:

tcpdump_to_db

Output:

#fsdb time proto src dest flags start end len ack win 51072.556781 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh S 2306448962 2306448962 0 - 32120 51072.561734 tcp excalibur.usc.edu.ssh dash.isi.edu.1023 S 1968320001 1968320001 0 2306448963 4096 51072.561875 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh . - - - 1 32120 51078.746567 tcp excalibur.usc.edu.ssh dash.isi.edu.1023 P 316 328 12 348 4096 51078.755176 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh P 348 488 140 328 32696 51078.847937 tcp excalibur.usc.edu.ssh dash.isi.edu.1023 P 328 468 140 488 4096 51078.860047 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh . - - - 468 32696 51078.936255 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh P 488 516 28 468 32696 # | tcpdump_to_db

SEE ALSO

Fsdb.