BNBSHPK (File Format): Difference between revisions
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Latest revision as of 20:49, 13 October 2024
BNBSHPK (Binary NX Bezel SHader PacKage) is an archive format used to store BFSHA files.
File Format
Header
The file starts with the following header:
| Offset | Type | Description |
|---|---|---|
| 0x00 | Char[8] | File magic. Always BEZSHAPK in ASCII. |
| 0x08 | UInt32 | Version number. |
| 0x0C | UInt16 | Byte-order-mark. FE FF for big endian, FF FE for little endian. |
| 0x0E | Byte | Alignment shift. 2 raised by this value is the alignment required by this file when loaded into memory. |
| 0x0F | Byte | Target address size. Size of a pointer in bits. Never set and there remains 0. |
| 0x10 | UInt32 | Dummy value. |
| 0x14 | UInt16 | A flag which is only used on runtime. One bit sets wether the file is relocated. |
| 0x16 | UInt16 | Offset to the first section. |
| 0x18 | UInt32 | Relocation table offset. |
| 0x1C | UInt32 | Size of the file in bytes. |
| 0x20 | Int64 | File entry array offset. |
| 0x28 | UInt32 | Number of file entries in this archive. |
| 0x3C | Byte[4] | Padding? |
File Entry
| Offset | Type | Description |
|---|---|---|
| 0x00 | Int64 | BFSHA file data offset. |
| 0x08 | ? | More data? It is currently unknown how this structure looks since the only file seen only has one file entry. |
String Table
The string table is a table where all strings are stored. Each string has first the length written, which is a 16-bit integer, and then the string is stored as a null-terminated string. The string length does not include the null byte, and the 16-bit string length value is always aligned by 2. The string sorting algorithm is unknown.
| Offset | Type | Description |
|---|---|---|
| 0x00 | Char[4] | Section magic. Always _STR in ASCII. |
| 0x04 | UInt32 | Next section offset. |
| 0x08 | UInt32 | Size of this section in bytes. |
| 0x0C | Byte[4] | Reserved. |
| 0x10 | Int32 | Number of strings stored in the string table. The first string is always an empty string ("") and is not included in this count. |
Relocation Table
| Offset | Type | Description |
|---|---|---|
| 0x00 | Char[4] | Section magic. Always _RLT in ASCII. |
| 0x04 | UInt32 | Table offset. The offset where this table starts. |
| 0x08 | Int32 | Number of sections. |
| 0x0C | Byte[4] | Padding. |
| Offset | Type | Description |
|---|---|---|
| 0x00 | Int64 | Section pointer, set on runtime. |
| 0x08 | UInt32 | Section offset. |
| 0x0C | UInt32 | Section size. |
| 0x10 | UInt32 | Entry ID. |
| 0x14 | UInt32 | Number of entries. |
| Offset | Type | Description |
|---|---|---|
| 0x00 | UInt32 | Entry offset. |
| 0x04 | UInt16 | Array count. |
| 0x06 | Byte | Offset count. |
| 0x07 | Byte | Padding size. |
Version List
| Version | Found in |
|---|---|
| 1.0.0 |
Tools
The following tools can handle BNBSHPK files:
- (none)
