VSH

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Revision as of 15:40, 7 January 2014 by Mysis (talk | contribs) (→‎Exports)
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VSH is the internal name used by Sony for the VShell aka VirtualShell. It then loads up the XMB you know.XrossMediaBar (XMB). This, is a user space executable (vsh.self), loaded by lv2_kernel/sys_init_osd.

from here several other functions/syscalls to other modules are made, e.g. lv2 (SELF decryption), lv1 (Secure_RTC, Storage_Manager, Gelic_Device, BD_Drive) etc.

not much is documented (yet) about this module. Please fill in where possible.

Modes

possible arguments to pass when executing vsh.self:

  • --mode=gametool
  • --mode=gametool2
  • --arcade=true

Offsets

Function 3.55 3.41 3.15 Notes
- - - - -
sub_308EE4 check_Is_Act_Dat_for_This_Acc_ID

Exports

Export Library Export NID Notes Usage
sys_io - - -
sys_fs - - -
sys_fs_ps2disc 0x8160A811 switches /dev_ps2disc(1) mount?
vsh 0xF48562D cellSsAimIsCEX
vsh 0x145991B4 cellSsAimIsArcade
vsh 0x172B05CD update_mgr_write_eprom syscall
vsh 0x1B890AD2 update_mgr_get_token_seed syscall
vsh 0x1F80E287 cellSsAimIsTool
vsh 0x2C563C92 update_mgr_read_eprom syscall
vsh 0x3231E012 vtrm_Decrypt_Master syscall
vsh 0x349F1535 update_mgr_set_token syscall
vsh 0x3B4A1AC4 AIM GetDeviceId syscall
vsh 0x3F062337 AIM GetPsCode syscall
vsh 0xE44F29F4 cellFsUtilMount syscall
vsh 0xE932A8C0 reboot and show minimum version int vsh_E932A8C0("text whatever you like")
vsh 0xFF4A1633 cellFsUtilMount syscall
vsh 0x7D73E7CD inflate_init
vsh 0x4DB8DD87 inflate_end
vsh 0x20215547 inflate_buffer
vsh 0x1C68CC75 inflate
sdk 0x5FAFE92B cellCryptoPuSha1Hash
sdk 0xB45387CD AesCbcCfb128Decrypt
sdk 0x55ACAB8A sha1_init
sdk 0x831E89EE sha1_update
sdk 0x3CABD075 sha1_final
sdk 0x4484A101 sha1_hmac_update
sdk 0x547B602C sha1_hmac_init
sdk 0x300B99F2 sha1_hmac_final
sdk 0x74A2A1FE sha1_hmac_buffer
sdk 0x68B630D5 aes_omac_mode1
paf 0x23AFB290 plugin->GetInterface plugin_interface plugin->GetInterface(uint32_t return from paf_F21655F3), gets Interface
paf 0xF21655F3 paf::View::Find uint32_t paf::View::Find("system_plugin") , or any other _plugin
vshcommon - -
x3 0x11409ED3 xRegistryGetDefaultInstance int xRegistryGetDefaultInstance (1, &handle)
x3 0xCB1D791D Obtains SS Key
x3 0xECACA8AD xRegistry SetValue Example: int SetValue(handle, "/setting/categoryVersion", 0,0,0)
vshnet - -
vshmain 0x981D7E9F Gets ScreenShot Flag int vshmain_981D7E9F()
vshtask 0xA02D46E7 Displays a notification in XMB int vshtask_A02D46E7(0 /*ignored*/, "your text" )

To help documenting offsets+exports, you can use this dumper tool for vsh (actually,no need to dump anymore).

Display Buffers

VSH uses 2 of 8 available display buffers. Information about them can be aquired by vsh plugins using this code snippet: [[1]]
In FW 4.46 DEX the buffer info looks like this (for 1920x1080):

Type This
GCMBUFINFO 0
offset: 0xdc80000
pitch: 0x2000
width: 0x780
height: 0x438

GCMBUFINFO 1
offset: 0xe500000
pitch: 0x2000
width: 0x780
height: 0x438