Record Events happening in Supplicant Module in a log file inside the phone with Timing Information

[Nithyananthan Poosamani]

Andrej,

Thank you for the quick reply. I tried your solution and also added filter
to filter the tags which I want instead of logging everything from the
circular buffer. Currently, this should work fine for me and I am planning
to add these commands to init.rc file so that they can start upon phone
boot.
I identified the place where the logging daemon service is started in
init.rc file. Below you can see part of init.rc file where the shell process
is spawned.

## Daemon processes to be run by init.
##
service ueventd /sbin/ueventd
    critical

service console /system/bin/sh
    console
    disabled
    user shell
    group log

I have 2 questions:
1) Do you want me to add the logcat commands in any specific place in
init.rc file?
2) For my next steps, I am planning to read and write some information like
SSID name, freq etc in a file other then wpa_supplicant.conf file from
within the wpa_supplicant daemon service. That's the reason I asked to log
events directly form wpa_supplicant in my first email.

thanks all !

Sincerely,
Nithy



On Wed, Oct 12, 2011 at 12:36 PM, Cainikov, Andrej <
Andrej.Cainikov at sonyericsson.com> wrote:

> Hi Nithy,****
>
> ** **
>
> What are you asking for has nothing to do with the wpa_supplicant itself,
> but rather to Android specifics.****
>
> ** **
>
> Collecting the logs on Android phone without USB cable normally is achieved
> via:****
>
> $ adb wait-for-device shell****
>
> $ logcat ?v threadtime > /data/logcat.log &****
>
> ** **
>
> Br,****
>
> Andrejs Cainikovs.****
>
> ** **
>
> *From:* hostap-bounces at lists.shmoo.com [mailto:
> hostap-bounces at lists.shmoo.com] *On Behalf Of *Nithyananthan Poosamani
> *Sent:* den 12 oktober 2011 18:12
> *To:* hostap at shmoo.com
> *Subject:* Record Events happening in Supplicant Module in a log file
> inside the phone with Timing Information****
>
> ** **
>
> Dear All,****
>
> ** **
>
> I am working to record some of the events happening in wpa_supplicant
> module like how many times the configuration file is read by supplicant to
> populate it's data structures, what time it happened, number of scans
> performed and their timing information etc.****
>
> ** **
>
> I have a rooted Nexus One phone which uses the wext driver. Currently, I
> would kill the wpa_supplicant process and start it with advanced log level
> to see all these information. The command I used is ****
>
> ** **
>
> wpa_supplicant -Dwext -ieth0 -c/data/misc/wifi/wpa_supplicant.conf -dd****
>
> ** **
>
> But I was able to see all these logs ONLY when I am connected to ADB
> interface through Eclipse. What I want is that I need to see all the logs
> even when the phone is not connected to ADB. I would like to store all these
> log information as a file inside the smartphone which I can later retrieve.
> Example the file could be logged in /data/misc/wifi/supplicant_log.txt. I
> shall later parse this log file and gather some information.****
>
> ** **
>
> Please guide me in achieving this. Thank you all for your time and patience
> !****
>
> ** **
>
> Sincerely,****
>
> Nithy****
>
> --****
>
> Networking Research Laboratory (NRL)****
>
> NC State University.****
>
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