tcpdump mailing list archives

Link-Layer Header Types request for Android


From: <Michal.Labedzki () tieto com>
Date: Tue, 14 May 2013 12:00:15 +0300

Hello,

I would like to request a new link-layer header type values:
LINKTYPE_ANDROID_ADB
DLT_ANDROID_ADB

LINKTYPE_ANDROID_LOGGER
DLT_ANDROID_LOGGER

First is ADB. Android Debug Bridge is protocols used to manage Android platforms (connect, send command, receive data). 
Please check also Android documentation: http://developer.android.com/tools/help/adb.html
For example: There are commands like: OKAY, WRTE (write),  CLSE (close), etc. They can be dissected, for example in 
Wireshark.

Second: Android Logger (knowns as Logcat logs) is format of (debug, for analyse of issues) Android processes messages.  
Logger is something like Linux kernel messages or/and syslog.
You can see implementation on Wireshark side - it can be useful to understand this request:  
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8279

Main purpose of Logger: add system logs allow to analyse application/protocols issues. (example: file over Bluetooth is 
not send and there is logcat log "socket not open: permission denied")
Main purpose of ADB: it is protocols.

Technically:
1. There can be a lot of Android interfaces: see "adb devices" (one interface per device [formally two: one for ADB, 
second for LOGCAT])
2. Logger can be put over ADB.
3. ADB can be put over TCP (adb connect localhost) or USB (default).


I think you can replace LOGGER by LOGCAT is you think that "logcat" is more clear.

Pozdrawiam / Best regards
-------------------------------------------------------------------------------------------------------------
Michał Łabędzki, Software Engineer
Tieto Corporation
Product Engineering Services
http://www.tieto.com / http://www.tieto.pl
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