Support older data center format versions

[alexrp]

In particular:

• The 32-bit variant of the current version 6.
• The 2012-era version 3 (only 32-bit).

This would require rethinking of how the data center code is structured. In particular, since nodes and attributes have different layout, we'd need helper functions to access the raw fields correctly. Possibly other stuff.

[alexrp]

• The 32-bit variant of the current version 6.

AFAIK there's no way to distinguish a 32-bit version 6 file from a 64-bit version 6 file. They didn't bother incrementing the version number. So users would have to specify bitness when loading/saving.

[alexrp]

The 2012-era version 3 (only 32-bit).

From Caali: This is just missing the client_version header field. Otherwise identical to 32-bit version 6.

[alexrp]

Some changes required for this to happen:

• Bitness must be settable on DataCenterLoadOptions.
• Format version (V3, V6X86, X6X64) must be settable on DataCenterSaveOptions.
• Size of nodes/attributes has to be hardcoded for each bitness instead of using Unsafe.SizeOf<T>().
• Some helpers need to be written for accessing node/attribute fields (to deal with bitness-dependent padding).
• Options need to be added to novadrop-dc to specify format version and bitness (see also Add option to novadrop-dc commands for setting the revision in the data center header #38).
• Data center format documentation needs to be updated.

[AgencyDev]

Hi as requested the 92.04.dat can be found here: https://drive.google.com/file/d/1caE8SgMk4ltEn2Y-ppKTAjpUq52iQVcf/view?usp=sharing

key BA08C84E3C557C205A86A6497C564904
iv 07B0920656502F51DB8E562B328E852B

[Archgeus]

Here's the oldest DC i have... hope it helps

https://www.mediafire.com/file/qj8ho6pzotkgky2/29.09.rar/file

Key
566E3235-0E909C17-914F164A-0E306F10

IV
1D1BF571-9F2E4D4E-C2E69778-65437E32

I have also more dc's oldest than 29.09 but without key/iv (26.04, 27.07)... if it helps just let me know

Thanks for your awesome job :)

[alexrp]

Just checking: Is anyone still interested in this feature today? I am considering getting around to it soon, but only if it will actually have users.

[Archgeus]

Just checking: Is anyone still interested in this feature today? I am considering getting around to it soon, but only if it will actually have users.

Yeah, please go for it as soon as you can.

[alexrp]

@Archgeus would you mind elaborating on your use case? Also which data center format versions you care about?

[KYGAS]

Just checking: Is anyone still interested in this feature today? I am considering getting around to it soon, but only if it will actually have users.

I had to do some work regarding Akeron server DC recently to create a compatible PSP for it; ( not sure which version it is; 281908 if that means something )
RealEditor can parse it and I could create the data however it seems some are missing which I am not sure if they are missing because of the version difference or because of RealEditor scheme.

If novadrop would support it I could check if the issue is RE related or version difference

[Archgeus]

@Archgeus would you mind elaborating on your use case? Also which data center format versions you care about?

I'm currently on a work of restoring 71.03 server files

But since it has been a really time-consuming i'm focusing on 92.04 until the miracle happens :)

Aside of that, i'm using 28.05 DC to collect resources in order to restore forgotten/deleted quest in early patches to my 92.04, but unfortunatelly novadrop don't work with that DC version (idk which one is to be honest, has been a tedious task using GothosDC).

Obviously in order to use more easily 92.04 DC :)

[alexrp]

Ok, I'll make this feature the priority next time I do some work on Novadrop.

[alexrp]

Here's the oldest DC i have... hope it helps

https://www.mediafire.com/file/qj8ho6pzotkgky2/29.09.rar/file

Key 566E3235-0E909C17-914F164A-0E306F10

IV 1D1BF571-9F2E4D4E-C2E69778-65437E32

I have also more dc's oldest than 29.09 but without key/iv (26.04, 27.07)... if it helps just let me know

Thanks for your awesome job :)

This archive seems to be password-protected.

[Archgeus]

Here's the oldest DC i have... hope it helps
https://www.mediafire.com/file/qj8ho6pzotkgky2/29.09.rar/file
Key 566E3235-0E909C17-914F164A-0E306F10
IV 1D1BF571-9F2E4D4E-C2E69778-65437E32
I have also more dc's oldest than 29.09 but without key/iv (26.04, 27.07)... if it helps just let me know
Thanks for your awesome job :)

This archive seems to be password-protected.

Ooops, very important detail, my bad.

Is RaGEZONE

[alexrp]

OK, thanks.

master now has support for older format versions. Please give it a try. Usage is --architecture <arch> (x86, x64) when loading and --format <format> (v3, v6x86, v6x64) when saving.