| /* |
| * (C) Copyright 2000-2004 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| #ifndef _PART_H |
| #define _PART_H |
| |
| #include <ide.h> |
| #include <common.h> |
| #include <uuid.h> |
| #include <linux/list.h> |
| #include <linux/compiler.h> |
| |
| #include <efi.h> |
| |
| #ifndef EINVAL |
| #define EINVAL 22 |
| #endif |
| |
| #define CONFIG_PARTITION_UUIDS |
| #define CONFIG_PARTITION_TYPE_GUID |
| //#define CONFIG_EFI_PARTITION |
| |
| /* |
| * Identifies the partition table type (ie. MBR vs GPT GUID) signature |
| */ |
| |
| #define PART_FORMAT_GPT 0x2 |
| |
| enum sig_type { |
| SIG_TYPE_NONE, |
| SIG_TYPE_MBR, |
| SIG_TYPE_GUID, |
| |
| SIG_TYPE_COUNT /* Number of signature types */ |
| }; |
| |
| typedef struct block_dev_desc { |
| int if_type; /* type of the interface */ |
| const char *if_name; |
| int dev; /* device number */ |
| int hwpart; |
| unsigned char part_type; /* partition type */ |
| unsigned char target; /* target SCSI ID */ |
| unsigned char lun; /* target LUN */ |
| unsigned char type; /* device type */ |
| unsigned char removable; /* removable device */ |
| #ifdef CONFIG_LBA48 |
| unsigned char lba48; /* device can use 48bit addr (ATA/ATAPI v7) */ |
| #endif |
| lbaint_t lba; /* number of blocks */ |
| unsigned long blksz; /* block size */ |
| int log2blksz; /* for convenience: log2(blksz) */ |
| char vendor[40 + 1]; /* IDE model, SCSI Vendor */ |
| char product[20 + 1]; /* IDE Serial no, SCSI product */ |
| char revision[8 + 1]; /* firmware revision */ |
| enum sig_type sig_type; /* Partition table signature type */ |
| union { |
| uint32_t mbr_sig; /* MBR integer signature */ |
| efi_guid_t guid_sig; /* GPT GUID Signature */ |
| }; |
| unsigned long (*block_read)(int dev, lbaint_t start, lbaint_t blkcnt, |
| void *buffer); |
| unsigned long (*block_write)(int dev, lbaint_t start, lbaint_t blkcnt, |
| const void *buffer); |
| unsigned long (*block_erase)(int dev, lbaint_t start, lbaint_t blkcnt); |
| void *priv; /* driver private struct pointer */ |
| } block_dev_desc_t; |
| |
| #define BLOCK_CNT(size, block_dev_desc) (PAD_COUNT(size, block_dev_desc->blksz)) |
| #define PAD_TO_BLOCKSIZE(size, block_dev_desc) \ |
| (PAD_SIZE(size, block_dev_desc->blksz)) |
| #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \ |
| ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \ |
| ((x & 0xffff0000) ? 16 : 0)) |
| #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1)) |
| |
| /* Interface types: */ |
| #define IF_TYPE_UNKNOWN 0 |
| #define IF_TYPE_IDE 1 |
| #define IF_TYPE_SCSI 2 |
| #define IF_TYPE_ATAPI 3 |
| #define IF_TYPE_USB 4 |
| #define IF_TYPE_DOC 5 |
| #define IF_TYPE_MMC 6 |
| #define IF_TYPE_SD 7 |
| #define IF_TYPE_SATA 8 |
| #define IF_TYPE_HOST 9 |
| #define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */ |
| |
| /* Part types */ |
| #define PART_TYPE_UNKNOWN 0x00 |
| #define PART_TYPE_MAC 0x01 |
| #define PART_TYPE_DOS 0x02 |
| #define PART_TYPE_ISO 0x03 |
| #define PART_TYPE_AMIGA 0x04 |
| #define PART_TYPE_EFI 0x05 |
| #define PART_TYPE_AML 0x06 |
| |
| /* |
| * Type string for U-Boot bootable partitions |
| */ |
| #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */ |
| #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */ |
| |
| /* device types */ |
| #define DEV_TYPE_UNKNOWN 0xff /* not connected */ |
| #define DEV_TYPE_HARDDISK 0x00 /* harddisk */ |
| #define DEV_TYPE_TAPE 0x01 /* Tape */ |
| #define DEV_TYPE_CDROM 0x05 /* CD-ROM */ |
| #define DEV_TYPE_OPDISK 0x07 /* optical disk */ |
| |
| #define PART_NAME_LEN 32 |
| #define PART_TYPE_LEN 32 |
| #define MAX_SEARCH_PARTITIONS 64 |
| #define UUID_STR_LEN 36 |
| |
| // U-boot internal bit flag for indicating that a (GPT) partition is a bootable |
| // ESP partition. |
| #define PART_EFI_SYSTEM_PARTITION ((int)(1 << 1)) |
| |
| typedef struct disk_partition { |
| lbaint_t start; /* # of first block in partition */ |
| lbaint_t size; /* number of blocks in partition */ |
| ulong blksz; /* block size in bytes */ |
| uchar name[32]; /* partition name */ |
| uchar type[32]; /* string type description */ |
| int bootable; /* Active/Bootable flag is set */ |
| #ifdef CONFIG_PARTITION_UUIDS |
| char uuid[37]; /* filesystem UUID as string, if exists */ |
| #endif |
| #ifdef CONFIG_PARTITION_TYPE_GUID |
| char type_guid[UUID_STR_LEN + 1]; /* type GUID as string, if exists*/ |
| #endif |
| #ifdef CONFIG_DOS_PARTITION |
| uchar sys_ind; /* partition type */ |
| #endif |
| } disk_partition_t; |
| |
| struct disk_part { |
| int partnum; |
| disk_partition_t gpt_part_info; |
| struct list_head list; |
| }; |
| |
| /* Misc _get_dev functions */ |
| #ifdef CONFIG_PARTITIONS |
| block_dev_desc_t *get_dev(const char *ifname, int dev); |
| block_dev_desc_t *ide_get_dev(int dev); |
| block_dev_desc_t *sata_get_dev(int dev); |
| block_dev_desc_t *scsi_get_dev(int dev); |
| block_dev_desc_t *usb_stor_get_dev(int dev); |
| block_dev_desc_t *mmc_get_dev(int dev); |
| int mmc_select_hwpart(int dev_num, int hwpart); |
| block_dev_desc_t *systemace_get_dev(int dev); |
| block_dev_desc_t *mg_disk_get_dev(int dev); |
| block_dev_desc_t *host_get_dev(int dev); |
| int host_get_dev_err(int dev, block_dev_desc_t **blk_devp); |
| |
| /* disk/part.c */ |
| int get_partition_info(block_dev_desc_t *dev_desc, int part, |
| disk_partition_t *info); |
| void print_part(block_dev_desc_t *dev_desc); |
| void init_part(block_dev_desc_t *dev_desc); |
| void dev_print(block_dev_desc_t *dev_desc); |
| int get_device(const char *ifname, const char *dev_str, |
| block_dev_desc_t **dev_desc); |
| int get_device_and_partition(const char *ifname, const char *dev_part_str, |
| block_dev_desc_t **dev_desc, |
| disk_partition_t *info, int allow_whole_dev); |
| block_dev_desc_t *get_dev_hwpart(const char *ifname, int dev, int hwpart); |
| #else |
| static inline block_dev_desc_t *get_dev(const char *ifname, int dev) |
| { return NULL; } |
| static inline block_dev_desc_t *ide_get_dev(int dev) { return NULL; } |
| static inline block_dev_desc_t *sata_get_dev(int dev) { return NULL; } |
| static inline block_dev_desc_t *scsi_get_dev(int dev) { return NULL; } |
| static inline block_dev_desc_t *usb_stor_get_dev(int dev) { return NULL; } |
| static inline block_dev_desc_t *mmc_get_dev(int dev) { return NULL; } |
| static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; } |
| static inline block_dev_desc_t *systemace_get_dev(int dev) { return NULL; } |
| static inline block_dev_desc_t *mg_disk_get_dev(int dev) { return NULL; } |
| static inline block_dev_desc_t *host_get_dev(int dev) { return NULL; } |
| |
| static inline int get_partition_info(block_dev_desc_t *dev_desc, int part, |
| disk_partition_t *info) { return -1; } |
| static inline void print_part(block_dev_desc_t *dev_desc) {} |
| static inline void init_part(block_dev_desc_t *dev_desc) {} |
| static inline void dev_print(block_dev_desc_t *dev_desc) {} |
| static inline int get_device(const char *ifname, const char *dev_str, |
| block_dev_desc_t **dev_desc) |
| { return -1; } |
| static inline int get_device_and_partition(const char *ifname, |
| const char *dev_part_str, |
| block_dev_desc_t **dev_desc, |
| disk_partition_t *info, |
| int allow_whole_dev) |
| { *dev_desc = NULL; return -1; } |
| #endif |
| |
| #ifdef CONFIG_MAC_PARTITION |
| /* disk/part_mac.c */ |
| int get_partition_info_mac(block_dev_desc_t *dev_desc, int part, |
| disk_partition_t *info); |
| void print_part_mac(block_dev_desc_t *dev_desc); |
| int test_part_mac(block_dev_desc_t *dev_desc); |
| #endif |
| |
| #ifdef CONFIG_DOS_PARTITION |
| /* disk/part_dos.c */ |
| int get_partition_info_dos(block_dev_desc_t *dev_desc, int part, |
| disk_partition_t *info); |
| void print_part_dos(block_dev_desc_t *dev_desc); |
| int test_part_dos(block_dev_desc_t *dev_desc); |
| #endif |
| |
| #ifdef CONFIG_ISO_PARTITION |
| /* disk/part_iso.c */ |
| int get_partition_info_iso(block_dev_desc_t *dev_desc, int part, |
| disk_partition_t *info); |
| void print_part_iso(block_dev_desc_t *dev_desc); |
| int test_part_iso(block_dev_desc_t *dev_desc); |
| #endif |
| |
| #ifdef CONFIG_AMIGA_PARTITION |
| /* disk/part_amiga.c */ |
| int get_partition_info_amiga(block_dev_desc_t *dev_desc, int part, |
| disk_partition_t *info); |
| void print_part_amiga(block_dev_desc_t *dev_desc); |
| int test_part_amiga(block_dev_desc_t *dev_desc); |
| #endif |
| |
| #ifdef CONFIG_AML_PARTITION |
| /* disk/part_aml.c, for aml emmc only */ |
| int get_partition_info_aml(block_dev_desc_t *dev_desc, |
| int part_num, disk_partition_t * info); |
| int get_partition_info_aml_by_name(block_dev_desc_t *dev_desc, |
| const char *name, disk_partition_t *info); |
| void print_part_aml(block_dev_desc_t *dev_desc); |
| int test_part_aml(block_dev_desc_t *dev_desc); |
| #endif |
| |
| /* |
| * We don't support printing partition information in SPL and only support |
| * getting partition information in a few cases. |
| */ |
| #ifdef CONFIG_SPL_BUILD |
| # define part_print_ptr(x) NULL |
| # if defined(CONFIG_SPL_EXT_SUPPORT) || defined(CONFIG_SPL_FAT_SUPPORT) || \ |
| defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION) |
| # define part_get_info_ptr(x) x |
| # else |
| # define part_get_info_ptr(x) NULL |
| # endif |
| #else |
| #define part_print_ptr(x) x |
| #define part_get_info_ptr(x) x |
| #endif |
| |
| |
| struct part_driver { |
| const char *name; |
| int part_type; |
| const int max_entries; /* maximum number of entries to search */ |
| |
| /** |
| * get_info() - Get information about a partition |
| * |
| * @dev_desc: Block device descriptor |
| * @part: Partition number (1 = first) |
| * @info: Returns partition information |
| */ |
| int (*get_info)(block_dev_desc_t *dev_desc, int part, |
| disk_partition_t *info); |
| |
| /** |
| * print() - Print partition information |
| * |
| * @dev_desc: Block device descriptor |
| */ |
| void (*print)(block_dev_desc_t *dev_desc); |
| |
| /** |
| * test() - Test if a device contains this partition type |
| * |
| * @dev_desc: Block device descriptor |
| * @return 0 if the block device appears to contain this partition |
| * type, -ve if not |
| */ |
| int (*test)(block_dev_desc_t *dev_desc); |
| }; |
| |
| /* Declare a new U-Boot partition 'driver' */ |
| #define U_BOOT_PART_TYPE(__name) \ |
| ll_entry_declare(struct part_driver, __name, part_driver) |
| |
| |
| #ifdef CONFIG_EFI_PARTITION |
| #include <part_efi.h> |
| /* disk/part_efi.c */ |
| int get_partition_info_efi(block_dev_desc_t *dev_desc, |
| int part, disk_partition_t *info); |
| /** |
| * get_partition_info_efi_by_name() - Find the specified GPT partition table entry |
| * |
| * @param dev_desc - block device descriptor |
| * @param gpt_name - the specified table entry name |
| * @param info - returns the disk partition info |
| * |
| * @return - '0' on match, '-1' on no match, otherwise error |
| */ |
| int get_partition_info_efi_by_name(block_dev_desc_t *dev_desc, |
| const char *name, disk_partition_t *info); |
| void print_part_efi(block_dev_desc_t *dev_desc); |
| int test_part_efi(block_dev_desc_t *dev_desc); |
| |
| /** |
| * write_gpt_table() - Write the GUID Partition Table to disk |
| * |
| * @param dev_desc - block device descriptor |
| * @param gpt_h - pointer to GPT header representation |
| * @param gpt_e - pointer to GPT partition table entries |
| * |
| * @return - zero on success, otherwise error |
| */ |
| int write_gpt_table(block_dev_desc_t *dev_desc, |
| gpt_header *gpt_h, gpt_entry *gpt_e); |
| |
| /** |
| * gpt_fill_pte(): Fill the GPT partition table entry |
| * |
| * @param gpt_h - GPT header representation |
| * @param gpt_e - GPT partition table entries |
| * @param partitions - list of partitions |
| * @param parts - number of partitions |
| * |
| * @return zero on success |
| */ |
| int gpt_fill_pte(block_dev_desc_t *dev_desc, gpt_header *gpt_h, |
| gpt_entry *gpt_e, disk_partition_t *partitions, int parts); |
| |
| /** |
| * gpt_fill_header(): Fill the GPT header |
| * |
| * @param dev_desc - block device descriptor |
| * @param gpt_h - GPT header representation |
| * @param str_guid - disk guid string representation |
| * @param parts_count - number of partitions |
| * |
| * @return - error on str_guid conversion error |
| */ |
| int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h, |
| char *str_guid, int parts_count); |
| |
| /** |
| * gpt_restore(): Restore GPT partition table |
| * |
| * @param dev_desc - block device descriptor |
| * @param str_disk_guid - disk GUID |
| * @param partitions - list of partitions |
| * @param parts - number of partitions |
| * |
| * @return zero on success |
| */ |
| int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid, |
| disk_partition_t *partitions, const int parts_count); |
| |
| /** |
| * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid |
| * |
| * @param dev_desc - block device descriptor |
| * @param buf - buffer which contains the MBR and Primary GPT info |
| * |
| * @return - '0' on success, otherwise error |
| */ |
| int is_valid_gpt_buf(block_dev_desc_t *dev_desc, void *buf); |
| |
| /** |
| * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT |
| * |
| * @param dev_desc - block device descriptor |
| * @param buf - buffer which contains the MBR and Primary GPT info |
| * |
| * @return - '0' on success, otherwise error |
| */ |
| int write_mbr_and_gpt_partitions(block_dev_desc_t *dev_desc, void *buf); |
| /** |
| * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header |
| * and partition table entries (PTE) |
| * |
| * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. |
| * |
| * @param dev_desc - block device descriptor |
| * @param gpt_head - pointer to GPT header data read from medium |
| * @param gpt_pte - pointer to GPT partition table enties read from medium |
| * |
| * @return - '0' on success, otherwise error |
| */ |
| int gpt_verify_headers(block_dev_desc_t *dev_desc, gpt_header *gpt_head, |
| gpt_entry **gpt_pte); |
| |
| /** |
| * gpt_verify_partitions() - Function to check if partitions' name, start and |
| * size correspond to '$partitions' env variable |
| * |
| * This function checks if on medium stored GPT data is in sync with information |
| * provided in '$partitions' environment variable. Specificially, name, start |
| * and size of the partition is checked. |
| * |
| * @param dev_desc - block device descriptor |
| * @param partitions - partition data read from '$partitions' env variable |
| * @param parts - number of partitions read from '$partitions' env variable |
| * @param gpt_head - pointer to GPT header data read from medium |
| * @param gpt_pte - pointer to GPT partition table enties read from medium |
| * |
| * @return - '0' on success, otherwise error |
| */ |
| int gpt_verify_partitions(block_dev_desc_t *dev_desc, |
| disk_partition_t *partitions, int parts, |
| gpt_header *gpt_head, gpt_entry **gpt_pte); |
| |
| |
| /** |
| * get_disk_guid() - Function to read the GUID string from a device's GPT |
| * |
| * This function reads the GUID string from a block device whose descriptor |
| * is provided. |
| * |
| * @param dev_desc - block device descriptor |
| * @param guid - pre-allocated string in which to return the GUID |
| * |
| * @return - '0' on success, otherwise error |
| */ |
| int get_disk_guid(block_dev_desc_t *dev_desc, char *guid); |
| |
| #endif |
| |
| #if CONFIG_DOS_PARTITION |
| /** |
| * is_valid_dos_buf() - Ensure that a DOS MBR image is valid |
| * |
| * @param buf - buffer which contains the MBR |
| * |
| * @return - '0' on success, otherwise error |
| */ |
| int is_valid_dos_buf(void *buf); |
| |
| /** |
| * write_mbr_partition() - write DOS MBR |
| * |
| * @param dev_desc - block device descriptor |
| * @param buf - buffer which contains the MBR |
| * |
| * @return - '0' on success, otherwise error |
| */ |
| int write_mbr_partition(block_dev_desc_t *dev_desc, void *buf); |
| |
| #endif |
| |
| #endif /* _PART_H */ |