diff options
Diffstat (limited to 'src/gpt.h')
| -rw-r--r-- | src/gpt.h | 19 |
1 files changed, 16 insertions, 3 deletions
@@ -4,6 +4,7 @@ #define GUID_TYPE_LINUX_EXT3 MAKE_GUID(EBD0A0A2,B9E5,4433,87C0,68B6B72699C7) #define GUID_TYPE_LINUX_SWAP MAKE_GUID(0657FD6D,A4AB,43C4,84E5,0933C84B4F4F) #define GUID_TYPE_APPLE_HFS MAKE_GUID(48465300,0000,11AA,AA11,00306543ECAC) +#define GUID_TYPE_APPLE_TV MAKE_GUID(5265636F,7665,11AA,AA11,00306543ECAC) #define GPT_ENTRY_FLAG_SYSTEM 1 typedef struct @@ -18,6 +19,13 @@ typedef struct #define GPT_HEADER_SIGNATURE "EFI PART" #define GPT_HEADER_REVISION_EFI10 0x00010000 +#define GPT_PARITION_ENTRIES 128 +#define SECTOR_SIZE 512 + +#define GPT_ENTRIES_PER_SECTOR(h) (SECTOR_SIZE/((h)->partition_entry_size)) + +#define GPT_ENTRY_LBA(h,n) (((h)->partition_entry_lba)+(uint64_t) ((n)/GPT_ENTRIES_PER_SECTOR(h))) +#define GPT_ENTRY_OFFSET(h,n) (((n)%GPT_ENTRIES_PER_SECTOR(h))*((h)->partition_entry_size)) typedef struct { @@ -25,7 +33,7 @@ typedef struct uint32_t revision; uint32_t header_size; uint32_t header_crc; - uint8_t reserved[20]; + uint8_t reserved[4]; uint64_t my_lba; uint64_t alternate_lba; uint64_t first_usable_lba; @@ -43,11 +51,14 @@ typedef struct #define MBR_PARTITION_TYPE_EFI 0xee #define MBR_PARTITION_BOOTABLE 0x80 +#define MBR_SECTOR(a) ((a) & 0x3f) +#define MBR_CYLINDER(a) (((a) & 0xc0 ) << 2 | (((a)>>8) & 0xff )) +#define MBR_CS(c,s) (((s) & 0x3f) | (((c) & 0xff) <<8 ) | (((c) & 0x300) >> 2)) + typedef struct { uint8_t head; - uint8_t sector; - uint8_t track; + uint16_t cs; } PACKED CHS; typedef struct @@ -60,6 +71,8 @@ typedef struct uint32_t size; } PACKED MBR_entry; +#define MBR_SIGNATURE "\125\252" + typedef struct { uint8_t boot_code[440]; |