Tweet
Game
SOCOM II : US NAVY SEALS
Contributors
Fatality team
- Cronotrigga
- Harry
- XAN
Goals
Create an online server that has most if not all functionality of the original
Why?
After spending many nights looking for information on this topic, it has come to my realization that information on resurrecting an online server is almost inexistent. This post will be an on going discussion explaining the problems associated and the process in which to solve these issues. I would also like to have an open discussion with any developers that have possibly had some experience working with ps2 networking and or any other experience that could help on this topic. Anyone that is interested in helping with this project is more then welcome. The server will be developed with C#, it will be fully open source and hopefully the fatality team can inspire others to do the same with other games.
I have several memory dumps from when the game was online on patch r0004 and several dumps with crazy amounts of labels available for anyone that is interested. The following codes in this post are from no patch r0001.
Status
So far this project has been worked on by me and Harry, we have managed to find several useful codes in order to aid in debugging server code. Many hacks have been used to bypass the dnas screen, populate the universe screen and even get to the online menu without a server connection. We have also successfully disabled the packet encryption so all packets sent can be viewed in raw form using wireshark. This was originally done on SOCOM CA by GTLCPimp, which can be found in his vgate release. We have been able to force the ip addresses that SOCOM II originally used to point to our local network. From here I was able to construct a small C# program that would connect using a tcp socket on port 10071. I have so far been capable of receiving the initial connection packet and have been able to send data back to the ps2. This server will run the universe server that finds lobby servers and displays them in the gui. I have yet to construct a proper packet that will allow for the game to fully connect. After doing some research it seems that when the servers are populated in the universe screen that a person may select one to connect to, this then decides to open a separate socket. At this point using hacks to bypass the previous issue, the game's session state becomes invalid and will not allow for the connection to be sent. This could be forced however i believe it is important to take it step by step. Figuring out the first socket connection will be very useful later on.
Discussion
Anyone interested in helping or offering advice is more then willing to post and give possible new insight.
Codes
Notes
The game is using this library for packet cryption ""rt_crypt version: 1.01.0023""
SOCOM II : US NAVY SEALS
Contributors
Fatality team
- Cronotrigga
- Harry
- XAN
Goals
Create an online server that has most if not all functionality of the original
Why?
After spending many nights looking for information on this topic, it has come to my realization that information on resurrecting an online server is almost inexistent. This post will be an on going discussion explaining the problems associated and the process in which to solve these issues. I would also like to have an open discussion with any developers that have possibly had some experience working with ps2 networking and or any other experience that could help on this topic. Anyone that is interested in helping with this project is more then welcome. The server will be developed with C#, it will be fully open source and hopefully the fatality team can inspire others to do the same with other games.
I have several memory dumps from when the game was online on patch r0004 and several dumps with crazy amounts of labels available for anyone that is interested. The following codes in this post are from no patch r0001.
Status
So far this project has been worked on by me and Harry, we have managed to find several useful codes in order to aid in debugging server code. Many hacks have been used to bypass the dnas screen, populate the universe screen and even get to the online menu without a server connection. We have also successfully disabled the packet encryption so all packets sent can be viewed in raw form using wireshark. This was originally done on SOCOM CA by GTLCPimp, which can be found in his vgate release. We have been able to force the ip addresses that SOCOM II originally used to point to our local network. From here I was able to construct a small C# program that would connect using a tcp socket on port 10071. I have so far been capable of receiving the initial connection packet and have been able to send data back to the ps2. This server will run the universe server that finds lobby servers and displays them in the gui. I have yet to construct a proper packet that will allow for the game to fully connect. After doing some research it seems that when the servers are populated in the universe screen that a person may select one to connect to, this then decides to open a separate socket. At this point using hacks to bypass the previous issue, the game's session state becomes invalid and will not allow for the connection to be sent. This could be forced however i believe it is important to take it step by step. Figuring out the first socket connection will be very useful later on.
Discussion
Anyone interested in helping or offering advice is more then willing to post and give possible new insight.
Codes
Code:
Kill dnas lookup 202cc670 03e00008 202cc674 00000000
Code:
Update universe ips address $203F6920 print "192.168.1.7" nop address $203F6940 print "192.168.1.7" nop address $2044FCA8 print "192.168.1.7" nop
Code:
Disable packet encryption Authors TMBO team(ported from socom 1) 2062a79c 00000000 2062a838 00000000
Code:
/* Author Harry Populate universe screen with a fatality server */ address $202FB1AC j $000A1000 // universe create address $200A1000 addiu sp, sp, $ff80 sw ra, $0000(sp) setreg a0, $ffffffff addiu a1, zero, $1 addiu a2, zero, $1 setreg a3, $000B0000 jal $002FDAF0 nop lw ra, $0000(sp) jr ra addiu sp, sp, $80 // server name address $200B001C print "Fatality Server" // server URL address $200B009C print "192.168.1.101" // server port address $200B011C hexcode $275B // server description address $200B0120 print "The official Fatality server!" // status address $200B0220 hexcode $1 // users address $200B0224 hexcode $2 // max users address $200B0228 hexcode $270F // universe is active address $200B022C hexcode $1 // -------------------???????????????? address $200B023C hexcode $00001001 address $200B0240 hexcode $00462228 address $200B0248 hexcode $1 address $200B024C hexcode $80800051 address $200B02B4 // needed for server to display hexcode $1 address $202cc670 jr ra nop
Code:
/* Change lan gui to online gui Author Harry */ address $2027EA64 jal $000A6000 address $200A6000 addiu sp, sp, $ff80 sw ra, $0000(sp) sw a0, $0004(sp) sw a1, $0008(sp) sw a2, $000C(sp) sw v0, $0010(sp) // check if correct menu daddu a0, a2, zero setreg a1, $000A6F00 jal $00198f18 //strcmp nop bne v0, zero :__skip nop // change menu state setreg a2, $000A7000 beq zero, zero, :__online nop __skip: lw a2, $000C(sp) __online: lw ra, $0000(sp) lw a0, $0004(sp) lw a1, $0008(sp) lw v0, $0010(sp) j $001988D0 //sprintf addiu sp, sp, $80 address $200A6F00 print "dlgLANBriefingRoom.rdr" address $200A7000 print "dlgWorldOfSOCOM.rdr"
Code:
Pointer to decrypted packet: 00656034 Packet to be sent(before encryption): 0066BEF8
Code:
CREATE UNIVERSE FUNCTION: 002FDAF0 a0 = FFFFFFFF a1 = 1 a2 = 1 a3 = high memory pointer with the following offsets: 1C: Universe display name string 9C: Universe URL string 11C: Universe port 120: Universe description string --- Several unknown values below. 220: status dot (1 = green, 0 = red) 224: user count (FFFFFFFF = -1) 228: max user count 22C: is universe active? (0 disconnects instantly, 1 constantly connects) 23C: 00001001 240: 00462228 (points to random place in another function) 248: 1 24C: 80800051 2B4: Server enabled BOOL? (set to FFFFFFFF in beta)
Code:
UDP packet receive function call 0063cac4
Code:
TCP Packet fnc list 00665510
Code:
Session master each byte displays a different state of the game 0045a0c0
Code:
KM_SHA1 Fnc 0062eec0
Code:
Account ID Author Cronotrogga 0066a4f0 Account username 0066a4f4
Code:
Game lobby/ Server lobby ID 0066a5f0
Code:
Some text key that was associated with your account. Changing all matches of this would stop a disc ban 0066a4d0
Code:
Server lobby name "US EAST" pointer 0044f430 Game name pointer 0044f434
Code:
Player rank 0066a754
Code:
Clan id 0040a460 Clan leader account id or clan account id 00452984 Clan leader account id or clan account id 0045295c
Code:
Sets the session value on a valid connection to the main socket 002fe168
Attached Files
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