SceExfatfs

Module

Version	World	Privilege
1.69-3.73	Non-secure	Kernel

Libraries

Known NIDs

Version	Name	World	Visibility	NID

Data segment layout

Address	Size	Description
0x0000	0x4	mutex to lock mempool
0x0004	0x4	SceUID mempool SceExfatfsCommon of size 0x7F000
0x0008	0x4	unknown
0x000C	0x20	vfs_add_data exfat node
0x002C	0x3C	unknown
0x0068	0x10	array of void* pointers (pools)
0x0078	0x4	some flag
0x007C	0x4	unknown
0x0080	0x430 * 15(0x3ED0)	15 elements of type exfat_ctx
0x3F50	0x200	fat16 MBR
0x4150	0x200	FAT16 or exfat MBR
0x4350	0x200	FAT16 or exfat MBR
0x4550	0x200	fat16 MBR
0x4750	0x200	fat16 MBR
0x4950	0x200	fat16 MBR
0x4B50	0x200	FAT16 or exfat MBR
0x4D50	0x200	FAT16 or exfat MBR
0x4F50	0x200	exfat MBR
0x5150	0x200	exfat MBR
0x5350	0x200	maybe uma0: MBR
0x5550	0x800	unknown (zeros)
0x5D50	0x290*0x400(0xA4000)	0x400 elements of type file_entry
0xA9D50	0x1EC080	possibly A buffer to parse the file system
0x295DD0	0x4	unknown
0x295DD4	0x4	Available SceExfatfs_data_0x5D50 elements number
0x295DD8	0xC	unknown
0x295DE4	0x4	SceExfatfsSharedResource fast mutex
0x295DE8	0x40	unknown

Types

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;