8:irdadump

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      irdadump - monitors the IrDA traffic on one or more links.
      
      irdadump [ -b ] [ -c n ] [ -d ] [ -x ] [ -s n ] [ -t ] [ -l ] [ -v ] [ -i device ]

Contents 1 OPTIONS 2 DESCRIPTION 3 EXAMPLES 4 DIAGNOSTICS 5 BUGS 6 RELATED 7 COPYRIGHT 8 CATEGORY

OPTIONS

      -b dump bytes in columns
 
      -c n set snapcols for byte printing with -b option
 
      -d prints the time difference between the current and the previous frame
 
      -x dump frame (bytes and ascii)
 
      -s n set snaplen for -b and -x option
 
      -t force TTP decoding of unknown connections
 
      -l set line buffering on output file
 
      -v verbose
 
      -i device interface

DESCRIPTION

      irdadump  is  a  tool for monitoring the IrDA traffic on one or more links. Just write "make" to compile the pro-
      gram. When you run the program, you should be able to see the IrDA traffic (if any).
 
      One advantage of implementing IrDA device drivers as network device drivers is that you should be able to  attach
      sniffers  to  the  device  (or  actually the packet type). That way, it is possible to use a really handy utility
      called irdadump (instead of tcpdump). This will make debugging MUCH easier. Linux-2.2 implements the BPF  (Berke-
      ley  Packet  Filter),  so its possible to filter out exactly the frames you want to see.  You may use hostname to
      separate different machines names.  Or grep to filter the output, too.
 
      irdadump must be run as root or installed setuid root, as it requires root privileges.

EXAMPLES

      The output should look something like this:
 
      / # ./irdadump
      20:11:45.412199 xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
      20:11:45.492137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
      20:11:45.572137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
      20:11:45.652208 xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
      20:11:45.732137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
      20:11:45.812137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=5
      20:11:45.892175 xid:cmd 0x0015c23b > 0xffffffff S=6 s=255 Linux
      20:11:45.902362 xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=5 ACTiSYS IR100M
      20:11:48.412197 xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
      20:11:48.492656 xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
      20:11:48.572177 xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
      20:11:48.652169 xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
      20:11:48.732177 xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
      20:11:48.812153 xid:cmd 0x0015c23b > 0xffffffff S=6 s=5
      20:11:48.822371 xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=4 ACTiSYS IR100M
 
      15 packets received by filter
      Turning on the "-d" option will make irdadump print the time difference between  the  current  and  the  previous
      frame:
 
      / # ./irdadump -d
      20:11:18.412475 (0982.06 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
      20:11:18.492345 (0079.87 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
      20:11:18.572376 (0080.03 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
      20:11:18.652979 (0080.60 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
      20:11:18.732354 (0079.38 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
      20:11:18.755093 (0022.74 ms) xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=3 ACTiSYS IR100M
      20:11:18.812350 (0057.26 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=5
      20:11:18.892518 (0080.17 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=255 Linux
      20:11:21.412486 (2519.97 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
      20:11:21.492395 (0079.91 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
      20:11:21.572368 (0079.97 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
      20:11:21.652405 (0080.04 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
      20:11:21.732458 (0080.05 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
      irdadump must be run as root or installed setuid root, as it requires root privileges.
 
      irdadump  -d  -x  -s  256 will check the contents of the frames. This should tell us if the frames have malformed
      content, or if the irda stack is doing something wrong.

DIAGNOSTICS

      N.N.

BUGS

      N.N.

RELATED

      irattach(8), irdaping(8), irdadump(8), findchip(8), irpsion5(8), modprobe(8)
 
      Linux/IrDA Project http://irda.sourceforge.net -*- Linux/IrDA-Tutorial  http://www.hpl.hp.com/personal/Jean_Tour-
      rilhes/IrDA/index.html -*- Infrared-HOWTO http://tuxmobil.org/howtos.html

COPYRIGHT

      Copyright (c) 2001 Werner Heuser
 
      Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free  Documenta-
      tion  License (GFDL), Version 1.1 or any later version published by the Free Software Foundation; with no Invari-
      ant Sections, no Front-Cover Texts and no Back-Cover Texts.

CATEGORY