wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 1 | /* |
wdenk | 42dfe7a | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 2 | * (C) Copyright 2000-2004 |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
Wolfgang Denk | 3765b3e | 2013-10-07 13:07:26 +0200 | [diff] [blame] | 5 | * SPDX-License-Identifier: GPL-2.0+ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 6 | */ |
| 7 | #ifndef _PART_H |
| 8 | #define _PART_H |
Grant Likely | 735dd97 | 2007-02-20 09:04:34 +0100 | [diff] [blame] | 9 | |
Simon Glass | 1a73661 | 2016-02-29 15:25:39 -0700 | [diff] [blame] | 10 | #include <blk.h> |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 11 | #include <ide.h> |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 12 | |
Egbert Eich | 0472fbf | 2013-04-09 21:11:56 +0000 | [diff] [blame] | 13 | #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \ |
| 14 | ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \ |
| 15 | ((x & 0xffff0000) ? 16 : 0)) |
| 16 | #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1)) |
Egbert Eich | ae1768a | 2013-04-09 06:03:36 +0000 | [diff] [blame] | 17 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 18 | /* Part types */ |
wdenk | 42dfe7a | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 19 | #define PART_TYPE_UNKNOWN 0x00 |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 20 | #define PART_TYPE_MAC 0x01 |
| 21 | #define PART_TYPE_DOS 0x02 |
| 22 | #define PART_TYPE_ISO 0x03 |
wdenk | 42dfe7a | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 23 | #define PART_TYPE_AMIGA 0x04 |
richardretanubun | 07f3d78 | 2008-09-26 11:13:22 -0400 | [diff] [blame] | 24 | #define PART_TYPE_EFI 0x05 |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 25 | |
wdenk | b0fce99 | 2003-06-29 21:03:46 +0000 | [diff] [blame] | 26 | /* |
| 27 | * Type string for U-Boot bootable partitions |
| 28 | */ |
| 29 | #define BOOT_PART_TYPE "U-Boot" /* primary boot partition type */ |
| 30 | #define BOOT_PART_COMP "PPCBoot" /* PPCBoot compatibility type */ |
| 31 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 32 | /* device types */ |
wdenk | b0fce99 | 2003-06-29 21:03:46 +0000 | [diff] [blame] | 33 | #define DEV_TYPE_UNKNOWN 0xff /* not connected */ |
| 34 | #define DEV_TYPE_HARDDISK 0x00 /* harddisk */ |
wdenk | 42dfe7a | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 35 | #define DEV_TYPE_TAPE 0x01 /* Tape */ |
| 36 | #define DEV_TYPE_CDROM 0x05 /* CD-ROM */ |
| 37 | #define DEV_TYPE_OPDISK 0x07 /* optical disk */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 38 | |
wdenk | 42dfe7a | 2004-03-14 22:25:36 +0000 | [diff] [blame] | 39 | typedef struct disk_partition { |
Frederic Leroy | 04735e9 | 2013-06-26 18:11:25 +0200 | [diff] [blame] | 40 | lbaint_t start; /* # of first block in partition */ |
| 41 | lbaint_t size; /* number of blocks in partition */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 42 | ulong blksz; /* block size in bytes */ |
| 43 | uchar name[32]; /* partition name */ |
| 44 | uchar type[32]; /* string type description */ |
Rob Herring | 40e0e56 | 2012-08-23 11:31:43 +0000 | [diff] [blame] | 45 | int bootable; /* Active/Bootable flag is set */ |
Stephen Warren | 894bfbb | 2012-09-21 09:50:59 +0000 | [diff] [blame] | 46 | #ifdef CONFIG_PARTITION_UUIDS |
| 47 | char uuid[37]; /* filesystem UUID as string, if exists */ |
| 48 | #endif |
Patrick Delaunay | 7561b25 | 2015-10-27 11:00:27 +0100 | [diff] [blame] | 49 | #ifdef CONFIG_PARTITION_TYPE_GUID |
| 50 | char type_guid[37]; /* type GUID as string, if exists */ |
| 51 | #endif |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 52 | } disk_partition_t; |
| 53 | |
Grant Likely | 735dd97 | 2007-02-20 09:04:34 +0100 | [diff] [blame] | 54 | /* Misc _get_dev functions */ |
Matthew McClintock | df3fc52 | 2011-05-24 05:31:19 +0000 | [diff] [blame] | 55 | #ifdef CONFIG_PARTITIONS |
Simon Glass | fb1b7be | 2016-02-29 15:25:41 -0700 | [diff] [blame] | 56 | /** |
Simon Glass | db1d9e7 | 2016-02-29 15:25:42 -0700 | [diff] [blame] | 57 | * blk_get_dev() - get a pointer to a block device given its type and number |
Simon Glass | fb1b7be | 2016-02-29 15:25:41 -0700 | [diff] [blame] | 58 | * |
| 59 | * Each interface allocates its own devices and typically struct blk_desc is |
| 60 | * contained with the interface's data structure. There is no global |
| 61 | * numbering for block devices, so the interface name must be provided. |
| 62 | * |
| 63 | * @ifname: Interface name (e.g. "ide", "scsi") |
| 64 | * @dev: Device number (0 for first device on that interface, 1 for |
| 65 | * second, etc. |
| 66 | * @return pointer to the block device, or NULL if not available, or an |
| 67 | * error occurred. |
| 68 | */ |
Simon Glass | db1d9e7 | 2016-02-29 15:25:42 -0700 | [diff] [blame] | 69 | struct blk_desc *blk_get_dev(const char *ifname, int dev); |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 70 | struct blk_desc *ide_get_dev(int dev); |
| 71 | struct blk_desc *sata_get_dev(int dev); |
| 72 | struct blk_desc *scsi_get_dev(int dev); |
| 73 | struct blk_desc *usb_stor_get_dev(int dev); |
| 74 | struct blk_desc *mmc_get_dev(int dev); |
Simon Glass | fb1b7be | 2016-02-29 15:25:41 -0700 | [diff] [blame] | 75 | |
| 76 | /** |
| 77 | * mmc_select_hwpart() - Select the MMC hardware partiion on an MMC device |
| 78 | * |
| 79 | * MMC devices can support partitioning at the hardware level. This is quite |
| 80 | * separate from the normal idea of software-based partitions. MMC hardware |
| 81 | * partitions must be explicitly selected. Once selected only the region of |
| 82 | * the device covered by that partition is accessible. |
| 83 | * |
| 84 | * The MMC standard provides for two boot partitions (numbered 1 and 2), |
| 85 | * rpmb (3), and up to 4 addition general-purpose partitions (4-7). |
| 86 | * |
| 87 | * @dev_num: Block device number (struct blk_desc->dev value) |
| 88 | * @hwpart: Hardware partition number to select. 0 means the raw device, |
| 89 | * 1 is the first partition, 2 is the second, etc. |
| 90 | * @return 0 if OK, other value for an error |
| 91 | */ |
Stephen Warren | d235628 | 2014-05-07 12:19:02 -0600 | [diff] [blame] | 92 | int mmc_select_hwpart(int dev_num, int hwpart); |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 93 | struct blk_desc *systemace_get_dev(int dev); |
| 94 | struct blk_desc *mg_disk_get_dev(int dev); |
| 95 | struct blk_desc *host_get_dev(int dev); |
| 96 | int host_get_dev_err(int dev, struct blk_desc **blk_devp); |
Grant Likely | 735dd97 | 2007-02-20 09:04:34 +0100 | [diff] [blame] | 97 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 98 | /* disk/part.c */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 99 | int get_partition_info(struct blk_desc *dev_desc, int part, |
| 100 | disk_partition_t *info); |
| 101 | void print_part(struct blk_desc *dev_desc); |
| 102 | void init_part(struct blk_desc *dev_desc); |
| 103 | void dev_print(struct blk_desc *dev_desc); |
Simon Glass | ebac37c | 2016-02-29 15:25:43 -0700 | [diff] [blame^] | 104 | |
| 105 | /** |
| 106 | * blk_get_device_by_str() - Get a block device given its interface/hw partition |
| 107 | * |
| 108 | * Each interface allocates its own devices and typically struct blk_desc is |
| 109 | * contained with the interface's data structure. There is no global |
| 110 | * numbering for block devices, so the interface name must be provided. |
| 111 | * |
| 112 | * The hardware parition is not related to the normal software partitioning |
| 113 | * of a device - each hardware partition is effectively a separately |
| 114 | * accessible block device. When a hardware parition is selected on MMC the |
| 115 | * other hardware partitions become inaccessible. The same block device is |
| 116 | * used to access all hardware partitions, but its capacity may change when a |
| 117 | * different hardware partition is selected. |
| 118 | * |
| 119 | * When a hardware partition number is given, the block device switches to |
| 120 | * that hardware partition. |
| 121 | * |
| 122 | * @ifname: Interface name (e.g. "ide", "scsi") |
| 123 | * @dev_str: Device and optional hw partition. This can either be a string |
| 124 | * containing the device number (e.g. "2") or the device number |
| 125 | * and hardware partition number (e.g. "2.4") for devices that |
| 126 | * support it (currently only MMC). |
| 127 | * @dev_desc: Returns a pointer to the block device on success |
| 128 | * @return block device number (local to the interface), or -1 on error |
| 129 | */ |
| 130 | int blk_get_device_by_str(const char *ifname, const char *dev_str, |
| 131 | struct blk_desc **dev_desc); |
Stephen Warren | 10a37fd | 2012-09-21 09:50:57 +0000 | [diff] [blame] | 132 | int get_device_and_partition(const char *ifname, const char *dev_part_str, |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 133 | struct blk_desc **dev_desc, |
Stephen Warren | 10a37fd | 2012-09-21 09:50:57 +0000 | [diff] [blame] | 134 | disk_partition_t *info, int allow_whole_dev); |
Matthew McClintock | df3fc52 | 2011-05-24 05:31:19 +0000 | [diff] [blame] | 135 | #else |
Simon Glass | db1d9e7 | 2016-02-29 15:25:42 -0700 | [diff] [blame] | 136 | static inline struct blk_desc *blk_get_dev(const char *ifname, int dev) |
Rob Herring | 99d2c20 | 2012-09-21 04:08:17 +0000 | [diff] [blame] | 137 | { return NULL; } |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 138 | static inline struct blk_desc *ide_get_dev(int dev) { return NULL; } |
| 139 | static inline struct blk_desc *sata_get_dev(int dev) { return NULL; } |
| 140 | static inline struct blk_desc *scsi_get_dev(int dev) { return NULL; } |
| 141 | static inline struct blk_desc *usb_stor_get_dev(int dev) { return NULL; } |
| 142 | static inline struct blk_desc *mmc_get_dev(int dev) { return NULL; } |
Stephen Warren | d235628 | 2014-05-07 12:19:02 -0600 | [diff] [blame] | 143 | static inline int mmc_select_hwpart(int dev_num, int hwpart) { return -1; } |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 144 | static inline struct blk_desc *systemace_get_dev(int dev) { return NULL; } |
| 145 | static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; } |
| 146 | static inline struct blk_desc *host_get_dev(int dev) { return NULL; } |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 147 | |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 148 | static inline int get_partition_info(struct blk_desc *dev_desc, int part, |
| 149 | disk_partition_t *info) { return -1; } |
| 150 | static inline void print_part(struct blk_desc *dev_desc) {} |
| 151 | static inline void init_part(struct blk_desc *dev_desc) {} |
| 152 | static inline void dev_print(struct blk_desc *dev_desc) {} |
Simon Glass | ebac37c | 2016-02-29 15:25:43 -0700 | [diff] [blame^] | 153 | static inline int blk_get_device_by_str(const char *ifname, const char *dev_str, |
| 154 | struct blk_desc **dev_desc) |
Stephen Warren | 2023e60 | 2012-09-21 09:50:56 +0000 | [diff] [blame] | 155 | { return -1; } |
Rob Herring | 99d2c20 | 2012-09-21 04:08:17 +0000 | [diff] [blame] | 156 | static inline int get_device_and_partition(const char *ifname, |
Stephen Warren | 10a37fd | 2012-09-21 09:50:57 +0000 | [diff] [blame] | 157 | const char *dev_part_str, |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 158 | struct blk_desc **dev_desc, |
Stephen Warren | 10a37fd | 2012-09-21 09:50:57 +0000 | [diff] [blame] | 159 | disk_partition_t *info, |
| 160 | int allow_whole_dev) |
Rob Herring | 99d2c20 | 2012-09-21 04:08:17 +0000 | [diff] [blame] | 161 | { *dev_desc = NULL; return -1; } |
Matthew McClintock | df3fc52 | 2011-05-24 05:31:19 +0000 | [diff] [blame] | 162 | #endif |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 163 | |
| 164 | #ifdef CONFIG_MAC_PARTITION |
| 165 | /* disk/part_mac.c */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 166 | int get_partition_info_mac(struct blk_desc *dev_desc, int part, |
| 167 | disk_partition_t *info); |
| 168 | void print_part_mac(struct blk_desc *dev_desc); |
| 169 | int test_part_mac(struct blk_desc *dev_desc); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 170 | #endif |
| 171 | |
| 172 | #ifdef CONFIG_DOS_PARTITION |
| 173 | /* disk/part_dos.c */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 174 | int get_partition_info_dos(struct blk_desc *dev_desc, int part, |
| 175 | disk_partition_t *info); |
| 176 | void print_part_dos(struct blk_desc *dev_desc); |
| 177 | int test_part_dos(struct blk_desc *dev_desc); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 178 | #endif |
| 179 | |
| 180 | #ifdef CONFIG_ISO_PARTITION |
| 181 | /* disk/part_iso.c */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 182 | int get_partition_info_iso(struct blk_desc *dev_desc, int part, |
| 183 | disk_partition_t *info); |
| 184 | void print_part_iso(struct blk_desc *dev_desc); |
| 185 | int test_part_iso(struct blk_desc *dev_desc); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 186 | #endif |
| 187 | |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 188 | #ifdef CONFIG_AMIGA_PARTITION |
| 189 | /* disk/part_amiga.c */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 190 | int get_partition_info_amiga(struct blk_desc *dev_desc, int part, |
| 191 | disk_partition_t *info); |
| 192 | void print_part_amiga(struct blk_desc *dev_desc); |
| 193 | int test_part_amiga(struct blk_desc *dev_desc); |
wdenk | c7de829 | 2002-11-19 11:04:11 +0000 | [diff] [blame] | 194 | #endif |
| 195 | |
richardretanubun | 07f3d78 | 2008-09-26 11:13:22 -0400 | [diff] [blame] | 196 | #ifdef CONFIG_EFI_PARTITION |
Lukasz Majewski | 40684dd | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 197 | #include <part_efi.h> |
richardretanubun | 07f3d78 | 2008-09-26 11:13:22 -0400 | [diff] [blame] | 198 | /* disk/part_efi.c */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 199 | int get_partition_info_efi(struct blk_desc *dev_desc, int part, |
| 200 | disk_partition_t *info); |
Steve Rae | 60bf941 | 2014-05-26 11:52:24 -0700 | [diff] [blame] | 201 | /** |
| 202 | * get_partition_info_efi_by_name() - Find the specified GPT partition table entry |
| 203 | * |
| 204 | * @param dev_desc - block device descriptor |
| 205 | * @param gpt_name - the specified table entry name |
| 206 | * @param info - returns the disk partition info |
| 207 | * |
| 208 | * @return - '0' on match, '-1' on no match, otherwise error |
| 209 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 210 | int get_partition_info_efi_by_name(struct blk_desc *dev_desc, |
Steve Rae | 60bf941 | 2014-05-26 11:52:24 -0700 | [diff] [blame] | 211 | const char *name, disk_partition_t *info); |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 212 | void print_part_efi(struct blk_desc *dev_desc); |
| 213 | int test_part_efi(struct blk_desc *dev_desc); |
Lukasz Majewski | 40684dd | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 214 | |
| 215 | /** |
| 216 | * write_gpt_table() - Write the GUID Partition Table to disk |
| 217 | * |
| 218 | * @param dev_desc - block device descriptor |
| 219 | * @param gpt_h - pointer to GPT header representation |
| 220 | * @param gpt_e - pointer to GPT partition table entries |
| 221 | * |
| 222 | * @return - zero on success, otherwise error |
| 223 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 224 | int write_gpt_table(struct blk_desc *dev_desc, |
Lukasz Majewski | 40684dd | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 225 | gpt_header *gpt_h, gpt_entry *gpt_e); |
| 226 | |
| 227 | /** |
| 228 | * gpt_fill_pte(): Fill the GPT partition table entry |
| 229 | * |
| 230 | * @param gpt_h - GPT header representation |
| 231 | * @param gpt_e - GPT partition table entries |
| 232 | * @param partitions - list of partitions |
| 233 | * @param parts - number of partitions |
| 234 | * |
| 235 | * @return zero on success |
| 236 | */ |
| 237 | int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e, |
| 238 | disk_partition_t *partitions, int parts); |
| 239 | |
| 240 | /** |
| 241 | * gpt_fill_header(): Fill the GPT header |
| 242 | * |
| 243 | * @param dev_desc - block device descriptor |
| 244 | * @param gpt_h - GPT header representation |
| 245 | * @param str_guid - disk guid string representation |
| 246 | * @param parts_count - number of partitions |
| 247 | * |
| 248 | * @return - error on str_guid conversion error |
| 249 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 250 | int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h, |
Lukasz Majewski | 40684dd | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 251 | char *str_guid, int parts_count); |
| 252 | |
| 253 | /** |
| 254 | * gpt_restore(): Restore GPT partition table |
| 255 | * |
| 256 | * @param dev_desc - block device descriptor |
| 257 | * @param str_disk_guid - disk GUID |
| 258 | * @param partitions - list of partitions |
| 259 | * @param parts - number of partitions |
| 260 | * |
| 261 | * @return zero on success |
| 262 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 263 | int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid, |
Lukasz Majewski | 40684dd | 2012-12-11 11:09:46 +0100 | [diff] [blame] | 264 | disk_partition_t *partitions, const int parts_count); |
Steve Rae | 0ff7e58 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 265 | |
| 266 | /** |
| 267 | * is_valid_gpt_buf() - Ensure that the Primary GPT information is valid |
| 268 | * |
| 269 | * @param dev_desc - block device descriptor |
| 270 | * @param buf - buffer which contains the MBR and Primary GPT info |
| 271 | * |
| 272 | * @return - '0' on success, otherwise error |
| 273 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 274 | int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf); |
Steve Rae | 0ff7e58 | 2014-12-12 15:51:54 -0800 | [diff] [blame] | 275 | |
| 276 | /** |
| 277 | * write_mbr_and_gpt_partitions() - write MBR, Primary GPT and Backup GPT |
| 278 | * |
| 279 | * @param dev_desc - block device descriptor |
| 280 | * @param buf - buffer which contains the MBR and Primary GPT info |
| 281 | * |
| 282 | * @return - '0' on success, otherwise error |
| 283 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 284 | int write_mbr_and_gpt_partitions(struct blk_desc *dev_desc, void *buf); |
Lukasz Majewski | cef68bf | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 285 | |
| 286 | /** |
| 287 | * gpt_verify_headers() - Function to read and CRC32 check of the GPT's header |
| 288 | * and partition table entries (PTE) |
| 289 | * |
| 290 | * As a side effect if sets gpt_head and gpt_pte so they point to GPT data. |
| 291 | * |
| 292 | * @param dev_desc - block device descriptor |
| 293 | * @param gpt_head - pointer to GPT header data read from medium |
| 294 | * @param gpt_pte - pointer to GPT partition table enties read from medium |
| 295 | * |
| 296 | * @return - '0' on success, otherwise error |
| 297 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 298 | int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head, |
Lukasz Majewski | cef68bf | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 299 | gpt_entry **gpt_pte); |
| 300 | |
| 301 | /** |
| 302 | * gpt_verify_partitions() - Function to check if partitions' name, start and |
| 303 | * size correspond to '$partitions' env variable |
| 304 | * |
| 305 | * This function checks if on medium stored GPT data is in sync with information |
| 306 | * provided in '$partitions' environment variable. Specificially, name, start |
| 307 | * and size of the partition is checked. |
| 308 | * |
| 309 | * @param dev_desc - block device descriptor |
| 310 | * @param partitions - partition data read from '$partitions' env variable |
| 311 | * @param parts - number of partitions read from '$partitions' env variable |
| 312 | * @param gpt_head - pointer to GPT header data read from medium |
| 313 | * @param gpt_pte - pointer to GPT partition table enties read from medium |
| 314 | * |
| 315 | * @return - '0' on success, otherwise error |
| 316 | */ |
Simon Glass | 4101f68 | 2016-02-29 15:25:34 -0700 | [diff] [blame] | 317 | int gpt_verify_partitions(struct blk_desc *dev_desc, |
Lukasz Majewski | cef68bf | 2015-11-20 08:06:16 +0100 | [diff] [blame] | 318 | disk_partition_t *partitions, int parts, |
| 319 | gpt_header *gpt_head, gpt_entry **gpt_pte); |
richardretanubun | 07f3d78 | 2008-09-26 11:13:22 -0400 | [diff] [blame] | 320 | #endif |
| 321 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 322 | #endif /* _PART_H */ |