help me to understand ) ....

apnulled · **Joined:** 11 May 2009 20:06 **Posts:** 15

My need is to write application that will get servers list for BattleField2 (and its mods in future)
By sniffing original game I'm just know that the servers list is encrypted.

Can any one explain me step by step what i need to do to get servers list?
(Sending requests, works with received data, may be etc... )

Unfortunately i don't know C++ and glist sourcecode doesnt help me to much.

Sethioz · **Posted:** 11 May 2009 22:23

if you want to write it from scratch and you don't know C, then i don't think you can, but Luigi can prolly tell you way more about it (making such tools is not my field)

aluigi · **Posted:** 11 May 2009 22:25

bf2 uses the Gamespy master server so use gslist:

http://aluigi.org/papers.htm#gslist

example:

Code:

gslist -n battlefield2 -X \hostname\hostport\gamever\country\mapname\gametype\gamemode\numplayers\maxplayers\password\bf2_ranked

and yes you can receive from the master server also other bf2 specific values like gamevariant (I guess the one needed to identify the mods), bf2_anticheat, bf2_dedicated, bf2_ranked (used in my example) and so on

apnulled · **Joined:** 11 May 2009 20:06 **Posts:** 15

Ok, it seems to be clear, but i have few questions

Every time In the send request, i see new value (see marked with bold)

Quote:

........ .battlef
ield2.gs live.%TG
nyX;o.\h ostname\
hostport \gamever
\country \mapname
\gametyp e\gamemo
de\numpl ayers\ma
xplayers \passwor
d\bf2_ra nked....
.

is it random generated bytes from Random ID or its something else ?

Are the Delphi conversion of the function enctypex_decoder_convert_to_ipport ?

aluigi · **Posted:** 12 May 2009 11:43

that id is randomly generated each time and I'm not aware of ports to delphi of my enctypex function

apnulled · **Joined:** 11 May 2009 20:06 **Posts:** 15

And how about realisation of that decryption stuff in DLL module ?

aluigi · **Posted:** 12 May 2009 15:11

Code:

gcc -shared -o enctypex_decoder.dll enctypex_decoder.c

obviously if you use this dll remember that my code is released under the GPL license

apnulled · **Joined:** 11 May 2009 20:06 **Posts:** 15

ok. Thanks .

Luigi Auriemma

help me to understand ) ....