Luigi Auriemma

In these days, after the request of an user, I have created a hooker/dll injector for the clients and the servers of BF2/2142 of almost any version.

This small tool simply show you how the data, which is sent or received from the network, is read by the game engine.
So you will see all the fields in clear text, the format of the messages, and what means each bits in the packet.

Naturally you can't use this tool with Punkbuster enabled since it modifies the memory of the process, and it's a tool for developers and curious people so the 99% of players and admins don't need it.

http://aluigi.org/papers.htm#others-net

hmmm... interesting

Ill give it a check tonight and see what can i sniff.... lol.

Thaks bud.

Ciao.

i have managed to sniff the buddies retrival section, and its part of the login / session protocol.

Account / session protocol:
# Client: connects to account server
# Server: sends a challenge message

[code]\lc\1\challenge\SWRJLYCZHN\id\1\final\[/code]

# Client: sends a login message:

[code]\login\\challenge\V21CDSB2vtHFY0GyutWJvNlzOXT9n3tG\authtoken\B2Bc0...(shortened)...CAQTk=\response\09...(shortened)...24\port\9926\productid\10709\gamename\stella\namespaceid\20\sdkrevision\3\id\1\final\[/code]

# Server: sends session information

[code]\lc\2\sesskey\131701165\proof\b0740366d97d647f7632af53611938d2\userid\68781086\profileid\81246737\uniquenick\MadHatter2142\lt\rrPePfqBdPzOAuw0yzwbDR__\id\1\final\[/code]

# Server: sends a list of buddy messages you may have received:

[code]\bm\1\f\82188143\date\1175876059\msg\asdfasdf\final\[/code]

then sends a successive list of your buddies and their status:

[code] \bm\100\f\82533347\msg\|s|0|ss|Offline\final\
\bm\100\f\81437920\msg\|s|0|ss|Offline\final\
\bm\100\f\81306093\msg\|s|0|ss|Offline\final\
\bm\100\f\81168298\msg\|s|0|ss|Offline\final\
\bm\100\f\81242994\msg\|s|0|ss|Offline\final\
\bm\100\f\82260954\msg\|s|0|ss|Offline\final\
\bm\100\f\95467242\msg\|s|0|ss|Offline\final\
\bm\100\f\82188143\msg\|s|0|ss|Offline\final\
\bm\100\f\81465904\msg\|s|0|ss|Offline\final\
[/code]
# it does some other things which aren't related to the buddy system, then
# Client: sends the log off message when it shuts down / when you quit

[code]\logout\\sesskey\131701165\final\[/code]


But, im not that sharp from here on, can someone give me hand here?

after a little more investigacion i have found out, that when you do a successfull login, the ea server retrives your list of saved buddies, and then returns the stats of each buddy... So there is no way to query this server for user status.

I think gsplayers can be useful in what you want to do.
I need to reput the hands on this tool to see if I can optimize it more but probably exists a way to know if someone if online using the query used by gsplayers