Checksum of packages (v1.122b)

Leorekk · Postby **Leorekk** » Tue Jan 31, 2017 6:52 pm

Hello,

I did a setup of local server for testing DOL - unfortionatly i reached a point where i dont know how to proceed.

- DAoC Client with version: v1.122b
- Database DoL 1.9.6r3061
- DOLLoader for connecting to the server
I tried the latest pre-build version of the DOL server and as well as a local build form the master branch on Git.

What i have to mendtion is that i tried a couple of possible things, like hardware crc off and what not. But i can even reproduce it between different PC and VMs or just on localhost... so i guess its somehow a problem with the crc.

Issue is, if i connect with my client to the server, the server dropps the connection due to failed CRC. This error message describs it:

[14:43:02,446] Incoming connection from 192.168.178.21 using client version 1122
[14:43:02,461] PacketProcessor: Loaded 79 handlers from GameServer Assembly!
[14:43:02,461] PacketProcessor: Loaded 0 handlers from Script Assemblys!
[14:43:02,461] PacketProcessor: Loaded 79 preprocessors from cache for version=v168!
[14:43:02,540] Bad TCP packet checksum (packet:0xEA05 calculated:0x6C8E) -> disconnecting
client: Version1122 pakLib:DOL.GS.PacketHandler.PacketLib1122 type:LabyrinthOfTheMinotaur(LabyrinthOfTheMinotaur) addons:bit4, NewNewFrontiers state:NotConnected IP:192.168.178.21:49788 session:0 acc:null char:null class:null
curOffset=0; packetLength=264
[14:43:02,555] Last client sent/received packets (from older to newer):
[14:43:02,555] GSPacketIn: Size=7 Sequence=0x0000 Session=0 Parameter=0 ID=0xF4
0000: 36 01 01 16 62 59 05 6...bY.

[14:43:02,571] GSTCPPacketOut
0000: 00 0A 22 06 00 31 2E 31 32 32 00 00 00 .."..1.122...

[14:43:02,571] Last Received Bytes :
0000: 00 FC 00 81 03 26 9C 0B 23 85 51 47 76 A8 31 E8 .....&..#.QGv.1.
0010: 7C 01 72 AC 79 0B 6C A6 AF AE 3D B7 B0 E9 9D 72 |.r.y.l...=....r
0020: B9 69 13 38 60 AA A4 35 41 AF 01 00 28 1F C0 89 .i.8`..5A...(...
0030: A1 0B BD 4C E5 F7 53 D8 F6 D1 7A 33 AE 06 61 77 ...L..S...z3..aw
0040: BB D4 D9 38 9A 35 4F 0E 27 8A FF 7D 67 2E 77 67 ...8.5O.'..}g.wg
0050: 15 9A 49 6D E4 3E 08 3C DF FC C4 1E B4 77 34 A9 ..Im.>.<.....w4.
0060: 84 F9 38 FA A8 35 97 E2 A8 46 AC B8 C4 51 5A 39 ..8..5...F...QZ9
0070: 3A BA E1 97 08 52 86 E7 A6 6B 31 45 1F CB 31 B1 :....R...k1E..1.
0080: A8 73 26 B6 81 00 81 03 42 C5 34 72 48 75 94 89 .s&.....B.4rHu..
0090: 08 02 36 3B 7E 54 32 B4 65 16 6F 10 BB 0C 71 7B ..6;~T2.e.o...q{
00A0: C5 35 9B EA 5B 0F 34 0B 57 63 A2 3E A6 A6 92 E6 .5..[.4.Wc.>....
00B0: 38 FF D4 42 FC 49 0F 15 2D CE 7B B6 D7 E9 4A 68 8..B.I..-.{...Jh
00C0: 98 2B 1A EA 2F 13 CD 95 95 6B 8F 93 17 49 94 7B .+../....k...I.{
00D0: 41 4D B6 EC 1C 8F CA B8 3F 5A 21 18 7F 9C A7 77 AM......?Z!.⌂..w
00E0: 54 3B 24 EB 59 BE DB 93 7E B3 52 31 13 F7 68 51 T;$.Y...~.R1..hQ
00F0: 21 75 A6 EA FA 7D B8 60 3A 19 4A D9 22 72 CD 44 !u...}.`:.J."r.D
0100: 8E B3 29 7C 30 6B EA 05 00 00 00 00 00 00 00 00 ..)|0k..........
0110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
0150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

The part makes me worry is:
Bad TCP packet checksum (packet:0xEA05 calculated:0x6C8E)

So i searched for it on the DOL sources, extracted the part and issulated the issue in a small program for testing... and at least it is reproducable, but i have no clue how to fix it....

Code: Select all: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; /* ISSUE [14:43:02,446] Incoming connection from 192.168.178.21 using client version 1122 [14:43:02,461] PacketProcessor: Loaded 79 handlers from GameServer Assembly! [14:43:02,461] PacketProcessor: Loaded 0 handlers from Script Assemblys! [14:43:02,461] PacketProcessor: Loaded 79 preprocessors from cache for version=v168! [14:43:02,540] Bad TCP packet checksum (packet:0xEA05 calculated:0x6C8E) -> disconnecting client: Version1122 pakLib:DOL.GS.PacketHandler.PacketLib1122 type:LabyrinthOfTheMinotaur(LabyrinthOfTheMinotaur) addons:bit4, NewNewFrontiers state:NotConnected IP:192.168.178.21:49788 session:0 acc:null char:null class:null curOffset=0; packetLength=264 [14:43:02,555] Last client sent/received packets (from older to newer): [14:43:02,555] GSPacketIn: Size=7 Sequence=0x0000 Session=0 Parameter=0 ID=0xF4 0000: 36 01 01 16 62 59 05 6...bY. [14:43:02,571] GSTCPPacketOut 0000: 00 0A 22 06 00 31 2E 31 32 32 00 00 00 .."..1.122... [14:43:02,571] Last Received Bytes : 0000: 00 FC 00 81 03 26 9C 0B 23 85 51 47 76 A8 31 E8 .....&..#.QGv.1. 0010: 7C 01 72 AC 79 0B 6C A6 AF AE 3D B7 B0 E9 9D 72 |.r.y.l...=....r 0020: B9 69 13 38 60 AA A4 35 41 AF 01 00 28 1F C0 89 .i.8`..5A...(... 0030: A1 0B BD 4C E5 F7 53 D8 F6 D1 7A 33 AE 06 61 77 ...L..S...z3..aw 0040: BB D4 D9 38 9A 35 4F 0E 27 8A FF 7D 67 2E 77 67 ...8.5O.'..}g.wg 0050: 15 9A 49 6D E4 3E 08 3C DF FC C4 1E B4 77 34 A9 ..Im.>.<.....w4. 0060: 84 F9 38 FA A8 35 97 E2 A8 46 AC B8 C4 51 5A 39 ..8..5...F...QZ9 0070: 3A BA E1 97 08 52 86 E7 A6 6B 31 45 1F CB 31 B1 :....R...k1E..1. 0080: A8 73 26 B6 81 00 81 03 42 C5 34 72 48 75 94 89 .s&.....B.4rHu.. 0090: 08 02 36 3B 7E 54 32 B4 65 16 6F 10 BB 0C 71 7B ..6;~T2.e.o...q{ 00A0: C5 35 9B EA 5B 0F 34 0B 57 63 A2 3E A6 A6 92 E6 .5..[.4.Wc.>.... 00B0: 38 FF D4 42 FC 49 0F 15 2D CE 7B B6 D7 E9 4A 68 8..B.I..-.{...Jh 00C0: 98 2B 1A EA 2F 13 CD 95 95 6B 8F 93 17 49 94 7B .+../....k...I.{ 00D0: 41 4D B6 EC 1C 8F CA B8 3F 5A 21 18 7F 9C A7 77 AM......?Z!.⌂..w 00E0: 54 3B 24 EB 59 BE DB 93 7E B3 52 31 13 F7 68 51 T;$.Y...~.R1..hQ 00F0: 21 75 A6 EA FA 7D B8 60 3A 19 4A D9 22 72 CD 44 !u...}.`:.J."r.D 0100: 8E B3 29 7C 30 6B EA 05 00 00 00 00 00 00 00 00 ..)|0k.......... 0110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ */ namespace ConsoleApplication1 { class GSPacketIn { public static int HDR_SIZE = 12; } class gameclient { public gameclient() { } public int ReceiveBufferOffset; } class cutoutpacketmanager { public static gameclient m_client; public static byte[] staticBuffer = {0x00, 0xFC, 0x00, 0x81, 0x03, 0x26, 0x9C, 0x0B, 0x23, 0x85, 0x51, 0x47, 0x76, 0xA8, 0x31, 0xE8, 0x7C, 0x01, 0x72, 0xAC, 0x79, 0x0B, 0x6C, 0xA6, 0xAF, 0xAE, 0x3D, 0xB7, 0xB0, 0xE9, 0x9D, 0x72, 0xB9, 0x69, 0x13, 0x38, 0x60, 0xAA, 0xA4, 0x35, 0x41, 0xAF, 0x01, 0x00, 0x28, 0x1F, 0xC0, 0x89, 0xA1, 0x0B, 0xBD, 0x4C, 0xE5, 0xF7, 0x53, 0xD8, 0xF6, 0xD1, 0x7A, 0x33, 0xAE, 0x06, 0x61, 0x77, 0xBB, 0xD4, 0xD9, 0x38, 0x9A, 0x35, 0x4F, 0x0E, 0x27, 0x8A, 0xFF, 0x7D, 0x67, 0x2E, 0x77, 0x67, 0x15, 0x9A, 0x49, 0x6D, 0xE4, 0x3E, 0x08, 0x3C, 0xDF, 0xFC, 0xC4, 0x1E, 0xB4, 0x77, 0x34, 0xA9, 0x84, 0xF9, 0x38, 0xFA, 0xA8, 0x35, 0x97, 0xE2, 0xA8, 0x46, 0xAC, 0xB8, 0xC4, 0x51, 0x5A, 0x39, 0x3A, 0xBA, 0xE1, 0x97, 0x08, 0x52, 0x86, 0xE7, 0xA6, 0x6B, 0x31, 0x45, 0x1F, 0xCB, 0x31, 0xB1, 0xA8, 0x73, 0x26, 0xB6, 0x81, 0x00, 0x81, 0x03, 0x42, 0xC5, 0x34, 0x72, 0x48, 0x75, 0x94, 0x89, 0x08, 0x02, 0x36, 0x3B, 0x7E, 0x54, 0x32, 0xB4, 0x65, 0x16, 0x6F, 0x10, 0xBB, 0x0C, 0x71, 0x7B, 0xC5, 0x35, 0x9B, 0xEA, 0x5B, 0x0F, 0x34, 0x0B, 0x57, 0x63, 0xA2, 0x3E, 0xA6, 0xA6, 0x92, 0xE6, 0x38, 0xFF, 0xD4, 0x42, 0xFC, 0x49, 0x0F, 0x15, 0x2D, 0xCE, 0x7B, 0xB6, 0xD7, 0xE9, 0x4A, 0x68, 0x98, 0x2B, 0x1A, 0xEA, 0x2F, 0x13, 0xCD, 0x95, 0x95, 0x6B, 0x8F, 0x93, 0x17, 0x49, 0x94, 0x7B, 0x41, 0x4D, 0xB6, 0xEC, 0x1C, 0x8F, 0xCA, 0xB8, 0x3F, 0x5A, 0x21, 0x18, 0x7F, 0x9C, 0xA7, 0x77, 0x54, 0x3B, 0x24, 0xEB, 0x59, 0xBE, 0xDB, 0x93, 0x7E, 0xB3, 0x52, 0x31, 0x13, 0xF7, 0x68, 0x51, 0x21, 0x75, 0xA6, 0xEA, 0xFA, 0x7D, 0xB8, 0x60, 0x3A, 0x19, 0x4A, 0xD9, 0x22, 0x72, 0xCD, 0x44, 0x8E, 0xB3, 0x29, 0x7C, 0x30, 0x6B, 0xEA, 0x05/*, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00*/}; // original one from DOL public static ushort CalculateChecksum(byte[] packet, int dataOffset, int dataSize) { byte[] pak = packet; byte val1 = 0x7E; byte val2 = 0x7E; int i = dataOffset; int len = i + dataSize; while (i < len) { val1 += pak[i++]; val2 += val1; } return (ushort)(val2 - ((val1 + val2) << 8)); } ushort ComputeCheckSum(byte[] packet, int Size) { byte result; int i; result = 0; for (i = 0; i < Size; ++i) result += packet[i]; return ushort.Parse(""+result.ToString()); } uint calculateChecksum(byte[] message_byte, int length) { byte value1 = 0; byte value2 = 0; for(byte j=0; j<255; j++) { value1=j; value2=j; for(int i=0;i<length;i++) { value1+=message_byte[i]; value2+=value1; } Console.Write("j={0:X} calcCheck={1:X}\n", j, (ushort)(value2 - ((value1+value2) << 8))); if(0xEA+0x05 == (ushort)(value2 - ((value1+value2) << 8))) Console.Write("Fuckit\n"); } return (ushort)(value2 - ((value1+value2) << 8)); } // original one from DOL packagemanager class public void ReceiveBytes(int numBytes) { //lock (m_SyncLock) //{ byte[] buffer = staticBuffer; //m_client.ReceiveBuffer; //End Offset of buffer int bufferSize = /*m_client.ReceiveBufferOffset*/ 0 + numBytes; //Size < minimum if (bufferSize < GSPacketIn.HDR_SIZE) { m_client.ReceiveBufferOffset = bufferSize; // undo buffer read return; } //Reset the offset //m_client.ReceiveBufferOffset = 0; //Current offset into the buffer int curOffset = 0; do { int packetLength = (buffer[curOffset] << 8) + buffer[curOffset + 1] + GSPacketIn.HDR_SIZE; int dataLeft = bufferSize - curOffset; if (dataLeft < packetLength) { Buffer.BlockCopy(buffer, curOffset, buffer, 0, dataLeft); m_client.ReceiveBufferOffset = dataLeft; break; } // ** commented out because this hasn't been used in forever and crutching // ** to it only hurts performance in a design that needs to be reworked // ** anyways. // ** - tobz //var curPacket = new byte[packetLength]; //Buffer.BlockCopy(buffer, curOffset, curPacket, 0, packetLength); //curPacket = m_encoding.DecryptPacket(buffer, false); int packetEnd = curOffset + packetLength; int calcCheck = CalculateChecksum(buffer, curOffset, packetLength - 2); int pakCheck = (buffer[packetEnd - 2] << 8) | (buffer[packetEnd - 1]); int calcCheck2 = ComputeCheckSum(buffer, packetLength - 2); uint calcCheck3 = calculateChecksum(buffer, packetLength - 2); Console.Write("pakCheck={1:X} calcCheck={0:X} calcCheck2={2:X} calcCheck3={3:X}\n", calcCheck, pakCheck, calcCheck2, calcCheck3); if (pakCheck != calcCheck) { /*if (log.IsWarnEnabled) log.WarnFormat( "Bad TCP packet checksum (packet:0x{0:X4} calculated:0x{1:X4}) -> disconnecting\nclient: {2}\ncurOffset={3}; packetLength={4}", pakCheck, calcCheck, m_client.ToString(), curOffset, packetLength); if (log.IsInfoEnabled) { log.Info("Last client sent/received packets (from older to newer):"); foreach (IPacket prevPak in GetLastPackets()) { log.Info(prevPak.ToHumanReadable()); } log.Info(Marshal.ToHexDump("Last Received Bytes : ", buffer)); }*/ //m_client.Disconnect(); //return; } //var pak = new GSPacketIn(packetLength - GSPacketIn.HDR_SIZE); //pak.Load(buffer, curOffset, packetLength); /*try { HandlePacket(pak); } catch (Exception e) { if (log.IsErrorEnabled) log.Error("HandlePacket(pak)", e); }*/ curOffset += packetLength; } while (bufferSize - 1 > curOffset); if (bufferSize - 1 == curOffset) { buffer[0] = buffer[curOffset]; m_client.ReceiveBufferOffset = 1; } //} } } class Program { static void Main(string[] args) { cutoutpacketmanager tmp = new cutoutpacketmanager(); Console.Write("staticBuffer.Count()={0}\n", cutoutpacketmanager.staticBuffer.Count()); tmp.ReceiveBytes(cutoutpacketmanager.staticBuffer.Count()); Console.ReadKey(); } } }

Maybe someone has an idea how to make the DOL CRCs fitting to the client? (or do i need other client?)

Best regards
Leo

Postby **ontheDOL** » Wed Feb 01, 2017 11:27 pm

hey i could be wrong but i believe DOL only supports up to game.dll version 1.109

Postby **HunabKu** » Thu Feb 02, 2017 5:22 am

We worked on 1.109+ support but i's very complicated, thanks for your repport Leorekk !

Leorekk · Postby **Leorekk** » Thu Feb 02, 2017 11:53 am

Ok, thanks for the response. So that means for my problem i need to exchange the game.dll in version 1.122b with the 1.109 and it should work?

And as i now understand the context, i guess i should take it from this post?
http://www.dolserver.net/viewtopic.php?f=6&t=20643

Postby **ontheDOL** » Thu Feb 02, 2017 3:17 pm

yep there's lots of links floating around on the forum for a 1.109 game.dll

Postby **HunabKu** » Fri Feb 03, 2017 5:59 am

You need to change also the New Frontiers files.

Leorekk · Postby **Leorekk** » Fri Feb 03, 2017 11:05 am

OK, so i exchanged the DLLs and the connect works now. Some acc was created automatically (as it was configured like it) and i was able to create a char which was although stored to the DB - which is great for first.

The next blocker is now after i try to enter the game, i have tried to understand the package in/out stuff, but i guess it would take quite a while without knowlege about it...
http://i.imgur.com/tqCvnYG.png

You need to change also the New Frontiers files.

I didnt touch the New Frontiers files so far, is this related to the issue? What i need to do?

Postby **HunabKu** » Fri Feb 03, 2017 12:52 pm

Delete the character and recreate.

You will see Keeps and Tower white witouh 1.109 NF files

Leorekk · Postby **Leorekk** » Fri Feb 03, 2017 7:11 pm

Delete the character and recreate.

You will see Keeps and Tower white witouh 1.109 NF files

Ok did it, but the error is the same

From where can i get the 1.109 files?

Observing the traces of the server, i found something there are a lot of error traces from sql interaction, some of them looked like false-positiv errors, BUT within all of them there are some about the startup location:
http://i.imgur.com/QULNz7l.png
Could this be a reason?.... I mean the "startuplocation" talbe on the DB is empty... most propably it is the issue, what can i do against it? What shall i place as default value?

Leorekk · Postby **Leorekk** » Fri Feb 03, 2017 9:59 pm

I did another test by just deleting all the tables from the DB and afterwards letting the server create them... they look full different to the database i downloaded from sourceforge

Can you push an updated database to sourceforge which fits with the latest DOL Server (or one which will work with the prebuild server)?

Postby **ontheDOL** » Fri Feb 03, 2017 10:21 pm

check in DataBase contribution forum
PlanarChaos released a public db a week or so ago, and that should be compatible with the latest svn revision and no modified client files (other than the 1.109 game.dll)

Postby **HunabKu** » Sat Feb 04, 2017 5:22 am

I've posted a 1.109c FR Client here.

Leorekk · Postby **Leorekk** » Sat Feb 04, 2017 4:59 pm

check in DataBase contribution forum
PlanarChaos released a public db a week or so ago, and that should be compatible with the latest svn revision and no modified client files (other than the 1.109 game.dll)

Worked, most of the red errors are gone now, thanks!

I've posted a 1.109c FR Client here.

Downloaded it and i'm able to join now, thanks

... but i dont understand a word french, can i switch this somehow to EN or DE?

Postby **PlanarChaosRvrtwo** » Sat Feb 04, 2017 6:51 pm

Downloaded it and i'm able to join now, thanks ... but i dont understand a word french, can i switch this somehow to EN or DE?

Check this Thread:

http://www.dolserver.net/viewtopic.php?f=6&t=20643

Leorekk · Postby **Leorekk** » Sat Feb 04, 2017 6:59 pm

Downloaded it and i'm able to join now, thanks ... but i dont understand a word french, can i switch this somehow to EN or DE?
Check this Thread:

http://www.dolserver.net/viewtopic.php?f=6&t=20643

Yes i know, the client from HunabKu is already a the 1.109, but its in french - how can i change the language?

Checksum of packages (v1.122b)

Checksum of packages (v1.122b)

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Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

Re: Checksum of packages (v1.122b)

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