]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - disk/part_efi.c
Merge branch 'master' of git://git.denx.de/u-boot-usb
[karo-tx-uboot.git] / disk / part_efi.c
index fb5e9f0477a59d8bf6cc4a17c7db94d9e17363f2..efed58f81dac27ddcd1498a28ca8b80673138bda 100644 (file)
@@ -2,38 +2,19 @@
  * Copyright (C) 2008 RuggedCom, Inc.
  * Richard Retanubun <RichardRetanubun@RuggedCom.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
- * Problems with CONFIG_SYS_64BIT_LBA:
- *
- * struct disk_partition.start in include/part.h is sized as ulong.
- * When CONFIG_SYS_64BIT_LBA is activated, lbaint_t changes from ulong to uint64_t.
- * For now, it is cast back to ulong at assignment.
- *
- * This limits the maximum size of addressable storage to < 2 Terra Bytes
+ * NOTE:
+ *   when CONFIG_SYS_64BIT_LBA is not defined, lbaint_t is 32 bits; this
+ *   limits the maximum size of addressable storage to < 2 Terra Bytes
  */
 #include <asm/unaligned.h>
 #include <common.h>
 #include <command.h>
 #include <ide.h>
+#include <inttypes.h>
 #include <malloc.h>
 #include <part_efi.h>
 #include <linux/ctype.h>
@@ -59,8 +40,8 @@ static inline u32 efi_crc32(const void *buf, u32 len)
 
 static int pmbr_part_valid(struct partition *part);
 static int is_pmbr_valid(legacy_mbr * mbr);
-static int is_gpt_valid(block_dev_desc_t * dev_desc, unsigned long long lba,
-                               gpt_header * pgpt_head, gpt_entry ** pgpt_pte);
+static int is_gpt_valid(block_dev_desc_t *dev_desc, u64 lba,
+                               gpt_header *pgpt_head, gpt_entry **pgpt_pte);
 static gpt_entry *alloc_read_gpt_entries(block_dev_desc_t * dev_desc,
                                gpt_header * pgpt_head);
 static int is_pte_valid(gpt_entry * pte);
@@ -79,26 +60,6 @@ static char *print_efiname(gpt_entry *pte)
        return name;
 }
 
-static void uuid_string(unsigned char *uuid, char *str)
-{
-       static const u8 le[16] = {3, 2, 1, 0, 5, 4, 7, 6, 8, 9, 10, 11,
-                                 12, 13, 14, 15};
-       int i;
-
-       for (i = 0; i < 16; i++) {
-               sprintf(str, "%02x", uuid[le[i]]);
-               str += 2;
-               switch (i) {
-               case 3:
-               case 5:
-               case 7:
-               case 9:
-                       *str++ = '-';
-                       break;
-               }
-       }
-}
-
 static efi_guid_t system_guid = PARTITION_SYSTEM_GUID;
 
 static inline int is_bootable(gpt_entry *p)
@@ -119,6 +80,7 @@ void print_part_efi(block_dev_desc_t * dev_desc)
        gpt_entry *gpt_pte = NULL;
        int i = 0;
        char uuid[37];
+       unsigned char *uuid_bin;
 
        if (!dev_desc) {
                printf("%s: Invalid Argument(s)\n", __func__);
@@ -128,15 +90,23 @@ void print_part_efi(block_dev_desc_t * dev_desc)
        if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA,
                         gpt_head, &gpt_pte) != 1) {
                printf("%s: *** ERROR: Invalid GPT ***\n", __func__);
-               return;
+               if (is_gpt_valid(dev_desc, (dev_desc->lba - 1),
+                                gpt_head, &gpt_pte) != 1) {
+                       printf("%s: *** ERROR: Invalid Backup GPT ***\n",
+                              __func__);
+                       return;
+               } else {
+                       printf("%s: ***        Using Backup GPT ***\n",
+                              __func__);
+               }
        }
 
        debug("%s: gpt-entry at %p\n", __func__, gpt_pte);
 
        printf("Part\tStart LBA\tEnd LBA\t\tName\n");
        printf("\tAttributes\n");
-       printf("\tType UUID\n");
-       printf("\tPartition UUID\n");
+       printf("\tType GUID\n");
+       printf("\tPartition GUID\n");
 
        for (i = 0; i < le32_to_cpu(gpt_head->num_partition_entries); i++) {
                /* Stop at the first non valid PTE */
@@ -148,10 +118,12 @@ void print_part_efi(block_dev_desc_t * dev_desc)
                        le64_to_cpu(gpt_pte[i].ending_lba),
                        print_efiname(&gpt_pte[i]));
                printf("\tattrs:\t0x%016llx\n", gpt_pte[i].attributes.raw);
-               uuid_string(gpt_pte[i].partition_type_guid.b, uuid);
+               uuid_bin = (unsigned char *)gpt_pte[i].partition_type_guid.b;
+               uuid_bin_to_str(uuid_bin, uuid, UUID_STR_FORMAT_GUID);
                printf("\ttype:\t%s\n", uuid);
-               uuid_string(gpt_pte[i].unique_partition_guid.b, uuid);
-               printf("\tuuid:\t%s\n", uuid);
+               uuid_bin = (unsigned char *)gpt_pte[i].unique_partition_guid.b;
+               uuid_bin_to_str(uuid_bin, uuid, UUID_STR_FORMAT_GUID);
+               printf("\tguid:\t%s\n", uuid);
        }
 
        /* Remember to free pte */
@@ -175,20 +147,29 @@ int get_partition_info_efi(block_dev_desc_t * dev_desc, int part,
        if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA,
                        gpt_head, &gpt_pte) != 1) {
                printf("%s: *** ERROR: Invalid GPT ***\n", __func__);
-               return -1;
+               if (is_gpt_valid(dev_desc, (dev_desc->lba - 1),
+                                gpt_head, &gpt_pte) != 1) {
+                       printf("%s: *** ERROR: Invalid Backup GPT ***\n",
+                              __func__);
+                       return -1;
+               } else {
+                       printf("%s: ***        Using Backup GPT ***\n",
+                              __func__);
+               }
        }
 
        if (part > le32_to_cpu(gpt_head->num_partition_entries) ||
            !is_pte_valid(&gpt_pte[part - 1])) {
-               printf("%s: *** ERROR: Invalid partition number %d ***\n",
+               debug("%s: *** ERROR: Invalid partition number %d ***\n",
                        __func__, part);
+               free(gpt_pte);
                return -1;
        }
 
-       /* The ulong casting limits the maximum disk size to 2 TB */
-       info->start = (u64)le64_to_cpu(gpt_pte[part - 1].starting_lba);
+       /* The 'lbaint_t' casting may limit the maximum disk size to 2 TB */
+       info->start = (lbaint_t)le64_to_cpu(gpt_pte[part - 1].starting_lba);
        /* The ending LBA is inclusive, to calculate size, add 1 to it */
-       info->size = ((u64)le64_to_cpu(gpt_pte[part - 1].ending_lba) + 1)
+       info->size = (lbaint_t)le64_to_cpu(gpt_pte[part - 1].ending_lba) + 1
                     - info->start;
        info->blksz = dev_desc->blksz;
 
@@ -197,17 +178,37 @@ int get_partition_info_efi(block_dev_desc_t * dev_desc, int part,
        sprintf((char *)info->type, "U-Boot");
        info->bootable = is_bootable(&gpt_pte[part - 1]);
 #ifdef CONFIG_PARTITION_UUIDS
-       uuid_string(gpt_pte[part - 1].unique_partition_guid.b, info->uuid);
+       uuid_bin_to_str(gpt_pte[part - 1].unique_partition_guid.b, info->uuid,
+                       UUID_STR_FORMAT_GUID);
 #endif
 
-       debug("%s: start 0x%lX, size 0x%lX, name %s", __func__,
-               info->start, info->size, info->name);
+       debug("%s: start 0x" LBAF ", size 0x" LBAF ", name %s\n", __func__,
+             info->start, info->size, info->name);
 
        /* Remember to free pte */
        free(gpt_pte);
        return 0;
 }
 
+int get_partition_info_efi_by_name(block_dev_desc_t *dev_desc,
+       const char *name, disk_partition_t *info)
+{
+       int ret;
+       int i;
+       for (i = 1; i < GPT_ENTRY_NUMBERS; i++) {
+               ret = get_partition_info_efi(dev_desc, i, info);
+               if (ret != 0) {
+                       /* no more entries in table */
+                       return -1;
+               }
+               if (strcmp(name, (const char *)info->name) == 0) {
+                       /* matched */
+                       return 0;
+               }
+       }
+       return -2;
+}
+
 int test_part_efi(block_dev_desc_t * dev_desc)
 {
        ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, legacymbr, 1, dev_desc->blksz);
@@ -228,10 +229,10 @@ int test_part_efi(block_dev_desc_t * dev_desc)
  */
 static int set_protective_mbr(block_dev_desc_t *dev_desc)
 {
-       legacy_mbr *p_mbr;
-
        /* Setup the Protective MBR */
-       p_mbr = calloc(1, sizeof(p_mbr));
+       ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, p_mbr, 1);
+       memset(p_mbr, 0, sizeof(*p_mbr));
+
        if (p_mbr == NULL) {
                printf("%s: calloc failed!\n", __func__);
                return -1;
@@ -246,65 +247,9 @@ static int set_protective_mbr(block_dev_desc_t *dev_desc)
        if (dev_desc->block_write(dev_desc->dev, 0, 1, p_mbr) != 1) {
                printf("** Can't write to device %d **\n",
                        dev_desc->dev);
-               free(p_mbr);
-               return -1;
-       }
-
-       free(p_mbr);
-       return 0;
-}
-
-/**
- * string_uuid(); Convert UUID stored as string to bytes
- *
- * @param uuid - UUID represented as string
- * @param dst - GUID buffer
- *
- * @return return 0 on successful conversion
- */
-static int string_uuid(char *uuid, u8 *dst)
-{
-       efi_guid_t guid;
-       u16 b, c, d;
-       u64 e;
-       u32 a;
-       u8 *p;
-       u8 i;
-
-       const u8 uuid_str_len = 36;
-
-       /* The UUID is written in text: */
-       /* 1        9    14   19   24 */
-       /* xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx */
-
-       debug("%s: uuid: %s\n", __func__, uuid);
-
-       if (strlen(uuid) != uuid_str_len)
                return -1;
-
-       for (i = 0; i < uuid_str_len; i++) {
-               if ((i == 8) || (i == 13) || (i == 18) || (i == 23)) {
-                       if (uuid[i] != '-')
-                               return -1;
-               } else {
-                       if (!isxdigit(uuid[i]))
-                               return -1;
-               }
        }
 
-       a = (u32)simple_strtoul(uuid, NULL, 16);
-       b = (u16)simple_strtoul(uuid + 9, NULL, 16);
-       c = (u16)simple_strtoul(uuid + 14, NULL, 16);
-       d = (u16)simple_strtoul(uuid + 19, NULL, 16);
-       e = (u64)simple_strtoull(uuid + 24, NULL, 16);
-
-       p = (u8 *) &e;
-       guid = EFI_GUID(a, b, c, d >> 8, d & 0xFF,
-                       *(p + 5), *(p + 4), *(p + 3),
-                       *(p + 2), *(p + 1) , *p);
-
-       memcpy(dst, guid.b, sizeof(efi_guid_t));
-
        return 0;
 }
 
@@ -339,7 +284,7 @@ int write_gpt_table(block_dev_desc_t *dev_desc,
            != pte_blk_cnt)
                goto err;
 
-       /* recalculate the values for the Second GPT Header */
+       /* recalculate the values for the Backup GPT Header */
        val = le64_to_cpu(gpt_h->my_lba);
        gpt_h->my_lba = gpt_h->alternate_lba;
        gpt_h->alternate_lba = cpu_to_le64(val);
@@ -350,12 +295,14 @@ int write_gpt_table(block_dev_desc_t *dev_desc,
        gpt_h->header_crc32 = cpu_to_le32(calc_crc32);
 
        if (dev_desc->block_write(dev_desc->dev,
-                                 le32_to_cpu(gpt_h->last_usable_lba + 1),
+                                 (lbaint_t)le64_to_cpu(gpt_h->last_usable_lba)
+                                 + 1,
                                  pte_blk_cnt, gpt_e) != pte_blk_cnt)
                goto err;
 
        if (dev_desc->block_write(dev_desc->dev,
-                                 le32_to_cpu(gpt_h->my_lba), 1, gpt_h) != 1)
+                                 (lbaint_t)le64_to_cpu(gpt_h->my_lba), 1,
+                                 gpt_h) != 1)
                goto err;
 
        debug("GPT successfully written to block device!\n");
@@ -369,12 +316,15 @@ int write_gpt_table(block_dev_desc_t *dev_desc,
 int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
                disk_partition_t *partitions, int parts)
 {
-       u32 offset = (u32)le32_to_cpu(gpt_h->first_usable_lba);
-       ulong start;
+       lbaint_t offset = (lbaint_t)le64_to_cpu(gpt_h->first_usable_lba);
+       lbaint_t start;
+       lbaint_t last_usable_lba = (lbaint_t)
+                       le64_to_cpu(gpt_h->last_usable_lba);
        int i, k;
        size_t efiname_len, dosname_len;
 #ifdef CONFIG_PARTITION_UUIDS
        char *str_uuid;
+       unsigned char *bin_uuid;
 #endif
 
        for (i = 0; i < parts; i++) {
@@ -391,7 +341,7 @@ int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
                        gpt_e[i].starting_lba = cpu_to_le64(offset);
                        offset += partitions[i].size;
                }
-               if (offset >= gpt_h->last_usable_lba) {
+               if (offset >= last_usable_lba) {
                        printf("Partitions layout exceds disk size\n");
                        return -1;
                }
@@ -408,7 +358,9 @@ int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
 
 #ifdef CONFIG_PARTITION_UUIDS
                str_uuid = partitions[i].uuid;
-               if (string_uuid(str_uuid, gpt_e[i].unique_partition_guid.b)) {
+               bin_uuid = gpt_e[i].unique_partition_guid.b;
+
+               if (uuid_str_to_bin(str_uuid, bin_uuid, UUID_STR_FORMAT_STD)) {
                        printf("Partition no. %d: invalid guid: %s\n",
                                i, str_uuid);
                        return -1;
@@ -431,7 +383,8 @@ int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
                        gpt_e[i].partition_name[k] =
                                (efi_char16_t)(partitions[i].name[k]);
 
-               debug("%s: name: %s offset[%d]: 0x%x size[%d]: 0x%lx\n",
+               debug("%s: name: %s offset[%d]: 0x" LBAF
+                     " size[%d]: 0x" LBAF "\n",
                      __func__, partitions[i].name, i,
                      offset, i, partitions[i].size);
        }
@@ -455,7 +408,7 @@ int gpt_fill_header(block_dev_desc_t *dev_desc, gpt_header *gpt_h,
        gpt_h->header_crc32 = 0;
        gpt_h->partition_entry_array_crc32 = 0;
 
-       if (string_uuid(str_guid, gpt_h->disk_guid.b))
+       if (uuid_str_to_bin(str_guid, gpt_h->disk_guid.b, UUID_STR_FORMAT_GUID))
                return -1;
 
        return 0;
@@ -555,12 +508,12 @@ static int is_pmbr_valid(legacy_mbr * mbr)
  * Description: returns 1 if valid,  0 on error.
  * If valid, returns pointers to PTEs.
  */
-static int is_gpt_valid(block_dev_desc_t * dev_desc, unsigned long long lba,
-                       gpt_header * pgpt_head, gpt_entry ** pgpt_pte)
+static int is_gpt_valid(block_dev_desc_t *dev_desc, u64 lba,
+                       gpt_header *pgpt_head, gpt_entry **pgpt_pte)
 {
        u32 crc32_backup = 0;
        u32 calc_crc32;
-       unsigned long long lastlba;
+       u64 lastlba;
 
        if (!dev_desc || !pgpt_head) {
                printf("%s: Invalid Argument(s)\n", __func__);
@@ -568,7 +521,8 @@ static int is_gpt_valid(block_dev_desc_t * dev_desc, unsigned long long lba,
        }
 
        /* Read GPT Header from device */
-       if (dev_desc->block_read(dev_desc->dev, lba, 1, pgpt_head) != 1) {
+       if (dev_desc->block_read(dev_desc->dev, (lbaint_t)lba, 1, pgpt_head)
+                       != 1) {
                printf("*** ERROR: Can't read GPT header ***\n");
                return 0;
        }
@@ -600,28 +554,28 @@ static int is_gpt_valid(block_dev_desc_t * dev_desc, unsigned long long lba,
 
        /* Check that the my_lba entry points to the LBA that contains the GPT */
        if (le64_to_cpu(pgpt_head->my_lba) != lba) {
-               printf("GPT: my_lba incorrect: %llX != %llX\n",
-                       le64_to_cpu(pgpt_head->my_lba),
-                       lba);
+               printf("GPT: my_lba incorrect: %llX != %" PRIX64 "\n",
+                      le64_to_cpu(pgpt_head->my_lba),
+                      lba);
                return 0;
        }
 
        /* Check the first_usable_lba and last_usable_lba are within the disk. */
-       lastlba = (unsigned long long)dev_desc->lba;
+       lastlba = (u64)dev_desc->lba;
        if (le64_to_cpu(pgpt_head->first_usable_lba) > lastlba) {
-               printf("GPT: first_usable_lba incorrect: %llX > %llX\n",
-                       le64_to_cpu(pgpt_head->first_usable_lba), lastlba);
+               printf("GPT: first_usable_lba incorrect: %llX > %" PRIX64 "\n",
+                      le64_to_cpu(pgpt_head->first_usable_lba), lastlba);
                return 0;
        }
        if (le64_to_cpu(pgpt_head->last_usable_lba) > lastlba) {
-               printf("GPT: last_usable_lba incorrect: %llX > %llX\n",
-                       (u64) le64_to_cpu(pgpt_head->last_usable_lba), lastlba);
+               printf("GPT: last_usable_lba incorrect: %llX > %" PRIX64 "\n",
+                      le64_to_cpu(pgpt_head->last_usable_lba), lastlba);
                return 0;
        }
 
-       debug("GPT: first_usable_lba: %llX last_usable_lba %llX last lba %llX\n",
-               le64_to_cpu(pgpt_head->first_usable_lba),
-               le64_to_cpu(pgpt_head->last_usable_lba), lastlba);
+       debug("GPT: first_usable_lba: %llX last_usable_lba %llX last lba %"
+             PRIX64 "\n", le64_to_cpu(pgpt_head->first_usable_lba),
+             le64_to_cpu(pgpt_head->last_usable_lba), lastlba);
 
        /* Read and allocate Partition Table Entries */
        *pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head);
@@ -692,7 +646,7 @@ static gpt_entry *alloc_read_gpt_entries(block_dev_desc_t * dev_desc,
        /* Read GPT Entries from device */
        blk_cnt = BLOCK_CNT(count, dev_desc);
        if (dev_desc->block_read (dev_desc->dev,
-               le64_to_cpu(pgpt_head->partition_entry_lba),
+               (lbaint_t)le64_to_cpu(pgpt_head->partition_entry_lba),
                (lbaint_t) (blk_cnt), pte)
                != blk_cnt) {