1Fsdb::Filter::tcpdump_tUos_edrb(C3o)ntributed Perl DocumFesndtba:t:iFoinlter::tcpdump_to_db(3)
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NAME

6       tcpdump_to_db - convert tcpdump textual output to fsdb
7

SYNOPSIS

9           tcpdump_to_db [-T] < source.tcpdump > target.fsdb
10

DESCRIPTION

12       Converts a tcpdump textual data stream to Fsdb format.
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14       Currently it handles only TCP and silently fails on other traffic!
15       Awaiting enhancement... you're welcome to help.
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OPTIONS

18       -t or --daytime
19           Adjust times relative to the first timestamp.  (Defaults on.)
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21       This module also supports the standard fsdb options:
22
23       -d  Enable debugging output.
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25       -i or --input InputSource
26           Read from InputSource, typically a file name, or "-" for standard
27           input, or (if in Perl) a IO::Handle, Fsdb::IO or Fsdb::BoundedQueue
28           objects.
29
30       -o or --output OutputDestination
31           Write to OutputDestination, typically a file name, or "-" for
32           standard output, or (if in Perl) a IO::Handle, Fsdb::IO or
33           Fsdb::BoundedQueue objects.
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35       --autorun or --noautorun
36           By default, programs process automatically, but Fsdb::Filter
37           objects in Perl do not run until you invoke the run() method.  The
38           "--(no)autorun" option controls that behavior within Perl.
39
40       --help
41           Show help.
42
43       --man
44           Show full manual.
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SAMPLE USAGE

47   Input:
48           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)
49           14:11:12.561734 excalibur.usc.edu.ssh > dash.isi.edu.1023: S 1968320001:1968320001(0) ack 2306448963 win 4096
50           14:11:12.561875 dash.isi.edu.1023 > excalibur.usc.edu.ssh: . ack 1 win 32120 (DF)
51           14:11:18.746567 excalibur.usc.edu.ssh > dash.isi.edu.1023: P 316:328(12) ack 348 win 4096
52           14:11:18.755176 dash.isi.edu.1023 > excalibur.usc.edu.ssh: P 348:488(140) ack 328 win 32696 (DF) [tos 0x10]
53           14:11:18.847937 excalibur.usc.edu.ssh > dash.isi.edu.1023: P 328:468(140) ack 488 win 4096
54           14:11:18.860047 dash.isi.edu.1023 > excalibur.usc.edu.ssh: . ack 468 win 32696 (DF) [tos 0x10]
55           14:11:18.936255 dash.isi.edu.1023 > excalibur.usc.edu.ssh: P 488:516(28) ack 468 win 32696 (DF) [tos 0x10]
56
57       or a more modern form
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59           17:00:14.808855 IP 10.0.0.172.31738 > 10.1.0.50.telnet: Flags [S], seq 3236187954, win 21463, length 0
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61   Command:
62           tcpdump_to_db
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64   Output:
65           #fsdb time proto src dest flags start end len ack win
66           51072.556781 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh S 2306448962 2306448962 0 - 32120
67           51072.561734 tcp excalibur.usc.edu.ssh dash.isi.edu.1023 S 1968320001 1968320001 0 2306448963 4096
68           51072.561875 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh . - - - 1 32120
69           51078.746567 tcp excalibur.usc.edu.ssh dash.isi.edu.1023 P 316 328 12 348 4096
70           51078.755176 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh P 348 488 140 328 32696
71           51078.847937 tcp excalibur.usc.edu.ssh dash.isi.edu.1023 P 328 468 140 488 4096
72           51078.860047 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh . - - - 468 32696
73           51078.936255 tcp dash.isi.edu.1023 excalibur.usc.edu.ssh P 488 516 28 468 32696
74           #  | tcpdump_to_db
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SEE ALSO

77       Fsdb.
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CLASS FUNCTIONS

80   new
81           $filter = new Fsdb::Filter::tcpdump_to_db(@arguments);
82
83       Create a new tcpdump_to_db object, taking command-line arguments.
84
85   set_defaults
86           $filter->set_defaults();
87
88       Internal: set up defaults.
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90   parse_options
91           $filter->parse_options(@ARGV);
92
93       Internal: parse command-line arguments.
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95   setup
96           $filter->setup();
97
98       Internal: setup, parse headers.
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100   _conv_time
101           $daytime = $self->_conv_time($raw);
102
103       Convert tcpdump h:mm:ss.SS format to absolute seconds.
104
105   run
106           $filter->run();
107
108       Internal: run over each rows.
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111       Copyright (C) 1991-2018 by John Heidemann <johnh@isi.edu>
112
113       This program is distributed under terms of the GNU general public
114       license, version 2.  See the file COPYING with the distribution for
115       details.
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119perl v5.36.0                      2023-01-20    Fsdb::Filter::tcpdump_to_db(3)
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