Allow Software Manuals & Updates for ISOs in the XMB

[schm1dtmac]

New Feature

PSN EBOOTs support software manuals via loading DOCUMENT.DAT files located in the same folder as the EBOOT.PBP file, this could be supported similarly for ISOs by having the DOCUMENT.DAT be named the same as its corresponding ISO (e.g. if I had an ISO at ms0:/ISO/ULES00502.ISO, load ms0:/ISO/ULES00502.DAT for it's manual and so on).

Updating via XMB meanwhile, as noted in the title, is also supported for PSN EBOOTs and also for legitimate physical UMDs (afaik some older LME CFW may have supported this for ISO too) so it could also be possible to implement for ISOs. Both features mentioned in this issue are accessible via the triangle menu on the XMB when using the aforementioned official formats.

[isage]

For ISOs to support update/manuals, they should have category set to 'EG' in virtualsfo (Not sure how that would work for UMDs)
Manuals should technically work then too, when placed into ms0:/PSP/GAME/<DISC_ID>/

[schm1dtmac]

For ISOs to support update/manuals, they should have category set to 'EG' in virtualsfo (Not sure how that would work for UMDs) Manuals should technically work then too, when placed into ms0:/PSP/GAME/<DISC_ID>/

Had a quick look, actual UMDs should have category UG according to Redump, the hardcoded placeholder virtualSFO in vshctrl instead has category MG used by PSP updates, nor does the virtual_pbp code replace it with correct category data from the UMD SFO as with other entries (explains the lack of the Update option for ISOs).

[schm1dtmac]

@isage's fix worked great for updates at least, changing the hardcoded category to EG enabled functional updates for LBP's ISO version in my tests. Software manuals don't work though despite the option now showing, regardless of wherever i put them (did try some very creative locations) they don't get detected and an error shows instead, plus changing the category appears to break the ability to actually load the ISO when testing with VCS and LBP ISOs.

[isage]

Checked logs (in adrenaline, though), and seems like with ISO it tries to open iso itself, instead of DOCUMENT.DAT

nvm, it actually tries to open ms0:/PSP/GAME/MMMMMISO<num>/DOCUMENT.DAT (this is on adrenaline, ARK seems to use different naming scheme for that), which redirects to virtualpbp_open, which, obviously, fails, because there's no such file inside iso (or, rather, because it expects to only fake EBOOT.PBP)

[isage]

Then there's also an issue with DOCUMENT.DAT (from EBOOT-format games) being encrypted
(although, maybe stargate circumvents this properly, npdrm_free doesn't seem to)

[JoseAaronLopezGarcia]

Then there's also an issue with DOCUMENT.DAT (from EBOOT-format games) being encrypted (although, maybe stargate circumvents this properly, npdrm_free doesn't seem to)

Stargate does't really meddle with NPDRM stuff, it's for anti-CFW DRM on games themselves (i.e. real physical UMD games that have anti-CFW protection).

Checked logs (in adrenaline, though), and seems like with ISO it tries to open iso itself, instead of DOCUMENT.DAT

nvm, it actually tries to open ms0:/PSP/GAME/MMMMMISO<num>/DOCUMENT.DAT (this is on adrenaline, ARK seems to use different naming scheme for that), which redirects to virtualpbp_open, which, obviously, fails, because there's no such file inside iso (or, rather, because it expects to only fake EBOOT.PBP)

This makes sense, it's the reason why I had to manually implement update/dlc detection myself instead of doing changing the category.

[schm1dtmac]

Then there's also an issue with DOCUMENT.DAT (from EBOOT-format games) being encrypted (although, maybe stargate circumvents this properly, npdrm_free doesn't seem to)

I don’t think DOCUMENT.DAT has any special protection beyond maybe fixed-key protection that would work fine on OFW. Tested it myself, the manuals load fine on OFW even without corresponding NPDRM license files and whatnot.

[isage]

I don’t think DOCUMENT.DAT has any special protection beyond maybe fixed-key protection that would work fine on OFW. Tested it myself, the manuals load fine on OFW even without corresponding NPDRM license files and whatnot.

Mkay, for that to work, vpbp should report that DOCINFO.EDAT doesn't exist in patched sceIoGetstat (otherwise game_plugin.prx tries to read it and fails)

And for DOCUMENT.DAT, both sceIoOpen and sceIoGetstat should redirect to actual file instead of doing vpbp_open/stat

[isage]

Implemented it (somewhat hackish way) in adrenaline, might help Acid doing this in ARK
isage/Adrenaline@5130872