SceExfatfs: Difference between revisions
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<source lang="c"> | <source lang="c"> | ||
#define SCE_EXFATFS_DEVCTL_CREATT_WDIR (2) | #define SCE_EXFATFS_DEVCTL_CREATT_WDIR (2) | ||
typedef struct exfat_ctx { //size is 0x430 bytes | typedef struct exfat_ctx { // size is 0x430 bytes | ||
uint32_t unk_0; | uint32_t unk_0; | ||
uint32_t unk_4; | uint32_t unk_4; | ||
| Line 105: | Line 104: | ||
char data1[0x3B0]; | char data1[0x3B0]; | ||
uint32_t fast_mutex_SceExfatfsRoot; //offset 0x3E0 | uint32_t fast_mutex_SceExfatfsRoot; // offset 0x3E0 | ||
char data2[0x4C]; | char data2[0x4C]; | ||
} exfat_ctx; | } exfat_ctx; | ||
typedef struct file_entry { //size is 0x290 bytes | typedef struct file_entry { / /size is 0x290 bytes | ||
uint32_t unk_0; | uint32_t unk_0; | ||
uint32_t unk_4; | uint32_t unk_4; | ||
| Line 117: | Line 116: | ||
char data1[0x80]; | char data1[0x80]; | ||
}file_entry; | } file_entry; | ||
</source> | </source> | ||
Revision as of 01:27, 28 January 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 section has to be wikified.
Known NIDs
| Version | Name | World | Visibility | NID |
|---|
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;