SceExfatfs: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
Line 12: | Line 12: | ||
== Libraries == | == Libraries == | ||
This | This module doesn't have library. | ||
== Data segment layout == | == Data segment layout == |
Revision as of 10:47, 12 November 2023
SceExfatfs handles FAT12/UVFAT12/FAT16/FAT32/exFAT file system parsing. It also supports TFAT32 or TexFAT which are transaction safe equivalents of FAT32 and exFAT.
Module
Version | World | Privilege |
---|---|---|
1.69-3.740.011 | Non-secure | Kernel |
Libraries
This module doesn't have library.
Data segment layout
Address | Size | Description |
---|---|---|
0x0000 | 4 | mutex to lock mempool |
0x0004 | 4 | SceUID mempool SceExfatfsCommon of size 0x7F000
|
0x0008 | 4 | unknown |
0x000C | 0x20 | vfs_add_data exfat node
|
0x002C | 4 | unknown |
0x0030 | 4 * 8(0x20) | Partition drive strings pointers. os0: etc.
|
0x0050 | 0x10 | unknown |
0x0060 | 4 | SceFatfsCPTable memblock base. |
0x0064 | 4 | SceFatfsCPTable memblock guid. |
0x0068 | 0x10 | array of void* pointers (pools) |
0x0078 | 4 | some counter. |
0x007C | 4 | unused in order to next member align. |
0x0080 | 0x430 * 15(0x3ED0) | 15 elements of type exfat_ctx
|
0x3F50 | 0x200 * 15(0x1E00) | Storage MBR |
0x5D50 | 4 | pointer |
0x5D54 | 4 | unknown |
0x5D58 | 0x290*0x400(0xA4000) | 0x400 elements of type file_entry
|
0xA9D58 | 0x290*0xC00(0x1EC000) | 0xC00 elements of type file_entry . maybe related to ReserveUnusedFd.
|
0x295D58 | 0x78 | unknown |
0x295DD0 | 4 | All file_entry elements number? |
0x295DD4 | 4 | Available SceExfatfs_data_0x5D50 elements number |
0x295DD8 | 4 | Related to ReserveUnusedFd number of SceExfatfs_data_0x5D50 elements. 0x200 in many case. |
0x295DDC | 4 | Related to ReserveUnusedFd number of SceExfatfs_data_0x5D50 elements. 0x100 in many case. |
0x295DE0 | 4 | unknown |
0x295DE4 | 4 | SceExfatfsSharedResource fast mutex
|
0x295DE8 | 0x40 | unknown |
Types
#define SCE_EXFATFS_DEVCTL_CREATT_WDIR (2) typedef struct exfat_ctx { // size is 0x430 bytes uint32_t unk_0; uint32_t unk_4; uint32_t unk_8; uint32_t unk_C; uint32_t unk_10; uint32_t unk_14; file_entry* unk_18; uint32_t unk_1C; uint32_t unk_20; uint32_t unk_24; uint32_t unk_28; uint32_t unk_2C; char data1[0x3B0]; uint32_t fast_mutex_SceExfatfsRoot; // offset 0x3E0 char data2[0x4C]; } exfat_ctx; typedef struct file_entry { / /size is 0x290 bytes uint32_t unk_0; uint32_t unk_4; char path[0x208]; //in unicode char data1[0x80]; } file_entry;