Code: Select all

UOP Fileformat ( aka Mythic Package )
---------------------------------------
--Draft 0.2 - OMISSIS --

(Every Offset value is its first evidence as example)
All values are stored in Little Endian sequence, as usual in x86 architecture.
Compression method is DEFLATE using zlib.

sizeof(DWORD) = 4
sizeof(QWORD) = 8

[1] - General Format Header (sizeof: 40bytes )
Byte(23) 0x0 - 0x17 -> Containing general file headers (Version etc.)
DWORD? 0x18 -> Amount of contained files/indexes
byte(12) -> Unknown gibberish

[2] - Index Block Header (sizeof: 24bytes)
There can be multiple index blocks, they are splitted into chunks.
DWORD 0x28 -> Amount of contained files in this index, max 100/0x64
QWORD 0x2c -> Offset to the next index block header OR Zero
QWORD 0x34 -> Offset to start of Data Block( -> WORD[2] 0x0008 0x0003 )
DWORD 0x3c -> End of header, Form Feed (0x0000000c)
When a index block doesn't contain 100 index definitions, it will be padded with nulls

[3] - FileIndex Definitions (sizeof: 34bytes )
DWORD 0x40 -> Lenght of compressed data
DWORD 0x44 -> Size of decompressed file
QWORD 0x48 -> UNKNOWN-1 (maybe CRC)
DWORD 0x50 -> UNKNOWN-2
WORD 0x54 -> Separator? (always 0x0001)
QWORD 0x56 -> offsetdatablock + (12 + current compressed size)*id current block {1...max} (last one is 0)
DWORD 0x5e -> end of definition, Form Feed ( 0x0000000c)
...this repreats, until all FileIndexes are processed

[4] - Data Block/File (sizeof: 8+Lenght bytes)
DWORD 0xd7c -> separator, start of Data ( WORD[2] 0x0008 0x0003 )
QWORD 0xd80 -> UNKNOWN, possibly a CRC
BYTE(Lenght) 0xd88 -> compressed data
...this is repeated until all Files from FileIndexes are processed

repreat until next Index Block=0.


Pseudocode:

[1] - General Format Header (sizeof: 40bytes )

while ( repreatindex ) do
[2] - Index Block Header (sizeof: 24bytes)

while ( indexfilenumber~=indexfilecounter ) do
[3] - FileIndex Definitions (sizeof: 34bytes )
end
while ( indexfilenumber~=indexfilecounter ) do
[4] - Data Block/File (sizeof: 8+Lenght bytes)
end
end

Feel free to add your own chapters.

Code: Select all

03-01-2009 MuadDib:
    Fixed:   Issue with Mount Objtype 0xF021 and EquipItem() ignoring setting it's Layer.
    Added:   Complete packethook support with Clients 6.0.1.7 and higher. This is handled via
             the earlier added Is6017 uopacket.cfg entry. This will allow you to specify a 
             packethook to be triggered ONLY if the client involved is 6.0.1.7 and higher.
             It does not have to be a different packet size for this to work, only the client.
    Added:   "KR" for expansion type. This includes sending the 0x86DB with packet 0xB9.


02-28-2009 MuadDib:
    Added:   ML Expansion statmsg packet support. If Expansion for account is ML or higher, 
             and client version is 5.0 or higher (or is KR), sends ML Info Flag and data.


02-27-2009 MuadDib:
    Added:   Base 6.0.1.7 and up Incoming Packet Handling ability to core.
    Changed: Packets 0x3C updated for supporting clients 6.0.1.7. and newer.
    Changed: Grid index support (KR and 6.0.1.7) for Drop item Packet and sending. Grid
             Index is still not set on Container Add by scripts and core yet (since this is
             only truly needed for KR support for slotted bags).
    Changed: Updated Secure Trade Drop Item packet to support 6.0.1.7 and newer clients.
    Changed: Updated sending of packet 0x25  to support 6.0.1.7 and newer clients.


02-25-2009 MuadDib:
    Added:   Support for UOKR Poisoned Status bar updates. Core will now update UOKR clients correctly
             when poisoned set to true or false for a character.