Editing PKG files
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[[Category:Software]] | |||
= Firmware Packages = | |||
== File Header == | |||
All values are in big endian format. | |||
typedef struct { | |||
u32 0x00, 0x53434500// magic | |||
u32 0x04, 2 // version | |||
u16 0x08, 0 // sdk type? | |||
u16 0x0a, 3 // SCE header type; pkg | |||
u32 0x0c, 0 // meta offset | |||
u64 0x10, // size of sce_hdr + sizeof meta_hdr | |||
u64 0x18, 0x80 // + content_size_real | |||
} | |||
= Game Packages = | |||
All game packages are signed with the ECDSA signature. The public key for it can be found in '''download_plugin.prx''' or in '''nas_plugin.prx''' (this also applies to NPDRM SELFs). Usually game packages are signed with two signatures - one for the header and the other for the entry table. | |||
= | == File Header == | ||
All values are in big endian format. | |||
All | |||
typedef struct { | typedef struct { | ||
u32 magic; | u32 magic; | ||
u32 pkg_type; | |||
u32 pkg_info_offset; | |||
u32 | u32 pkg_info_size; | ||
u32 | u32 header_size; | ||
u32 | |||
u32 item_count; | u32 item_count; | ||
u64 total_size; | u64 total_size; | ||
u64 data_offset; | u64 data_offset; | ||
u64 data_size; | u64 data_size; | ||
char contentid[0x30]; | |||
u8 digest[0x10]; | u8 digest[0x10]; | ||
u8 | u8 k_licensee[0x10]; | ||
} PKG_HEADER; | } PKG_HEADER; | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! field !! offset !! size!! type !! notes | |||
|- | |- | ||
| | ! colspan="5"| Unencrypted header | ||
|- | |- | ||
| | | magic || 0x0 || 4 || u32 || Magic value of 0x7f504b47 "\x7fPKG" | ||
|- | |- | ||
| | | pkg_type || 0x4 || 4 || u32 || The package type is 1 for PS3 pkg and 2 for PSP (minis also)/Vita packages. the flag 0x80000000 is used for retail. | ||
|- | |- | ||
| | | pkg_info_offset||0x8 || 4 || u32 || offset of the pkg_info structure | ||
|- | |- | ||
| | | pkg_info_size || 0xC || 4 ||u32 || pkg_info_size*8 = size of the pkg_info structure | ||
|- | |- | ||
| | | header_size || 0x10 || 4 || u32 || Size of the header | ||
| | |||
|- | |- | ||
| | | item_count || 0x14 || 4 || u32 || Variable (0x**) | ||
|- | |- | ||
| | | total_size || 0x18 || 8 || u64 || | ||
|- | |- | ||
| | | data_offset || 0x20 || 8 || u64 || | ||
|- | |- | ||
| | | data_size || 0x28 || 8 || u64 || | ||
|- | |- | ||
| | | contentid || 0x30 || 48 ||u8[48] || See [[PARAM.SFO#CONTENT_ID]] | ||
|- | |- | ||
| | | digest || 0x60 || 16 ||u8[16] || | ||
|- | |- | ||
| | | k_licensee || 0x70 || 16 ||u8[16] || | ||
|- | |- | ||
|} | |} | ||
=== File Entry === | |||
All values are in big endian format | |||
== File | |||
= | |||
All values are in big endian format | |||
typedef struct { | typedef struct { | ||
Line 696: | Line 82: | ||
u32 flags; | u32 flags; | ||
u32 padding; | u32 padding; | ||
} | } PKG_FILE_HEADER; | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |||
! field !! offset !! type !! notes | ! field !! offset !! type !! notes | ||
|- | |- | ||
Line 709: | Line 96: | ||
| data_size || 0x10 || u64 || | | data_size || 0x10 || u64 || | ||
|- | |- | ||
| flags || 0x18 || u32 || The file type | | flags || 0x18 || u32 || The file type | ||
|- | |- | ||
| padding || 0x1C || u32 || zero | | padding || 0x1C || u32 || zero | ||
|- | |- | ||
|} | |} | ||