So far partition search by name has been supported only on the EFI partition table. This patch extends the search to all partition tables.
Rename part_get_info_efi_by_name() to part_get_info_by_name(), move it from part_efi.c into part.c and make it a generic function which traverses all part drivers and searches all partitions (in the order given by the linked list).
For this a new variable struct part_driver.max_entries is added, which limits the number of partitions searched. For EFI this was GPT_ENTRY_NUMBERS. Similarly the limit is defined for DOS, ISO, MAC and AMIGA partition tables.
Signed-off-by: Petr Kulhavy brain@jikos.cz Reviewed-by: Tom Rini trini@konsulko.com --- v1: initial v2: no change
common/fb_mmc.c | 4 ++-- disk/part.c | 26 ++++++++++++++++++++++++++ disk/part_amiga.c | 1 + disk/part_dos.c | 1 + disk/part_efi.c | 20 +------------------- disk/part_iso.c | 1 + disk/part_mac.c | 1 + include/part.h | 32 ++++++++++++++++++++------------ 8 files changed, 53 insertions(+), 33 deletions(-)
diff --git a/common/fb_mmc.c b/common/fb_mmc.c index 8d0524d..a0a4a83 100644 --- a/common/fb_mmc.c +++ b/common/fb_mmc.c @@ -27,7 +27,7 @@ static int part_get_info_efi_by_name_or_alias(struct blk_desc *dev_desc, { int ret;
- ret = part_get_info_efi_by_name(dev_desc, name, info); + ret = part_get_info_by_name(dev_desc, name, info); if (ret) { /* strlen("fastboot_partition_alias_") + 32(part_name) + 1 */ char env_alias_name[25 + 32 + 1]; @@ -38,7 +38,7 @@ static int part_get_info_efi_by_name_or_alias(struct blk_desc *dev_desc, strncat(env_alias_name, name, 32); aliased_part_name = getenv(env_alias_name); if (aliased_part_name != NULL) - ret = part_get_info_efi_by_name(dev_desc, + ret = part_get_info_by_name(dev_desc, aliased_part_name, info); } return ret; diff --git a/disk/part.c b/disk/part.c index 6a1c02d..8317e80 100644 --- a/disk/part.c +++ b/disk/part.c @@ -615,3 +615,29 @@ cleanup: free(dup_str); return ret; } + +int part_get_info_by_name(struct blk_desc *dev_desc, const char *name, + disk_partition_t *info) +{ + struct part_driver *first_drv = + ll_entry_start(struct part_driver, part_driver); + const int n_drvs = ll_entry_count(struct part_driver, part_driver); + struct part_driver *part_drv; + + for (part_drv = first_drv; part_drv != first_drv + n_drvs; part_drv++) { + int ret; + int i; + for (i = 1; i < part_drv->max_entries; i++) { + ret = part_drv->get_info(dev_desc, i, info); + if (ret != 0) { + /* no more entries in table */ + break; + } + if (strcmp(name, (const char *)info->name) == 0) { + /* matched */ + return 0; + } + } + } + return -1; +} diff --git a/disk/part_amiga.c b/disk/part_amiga.c index d4316b8..25fe56c 100644 --- a/disk/part_amiga.c +++ b/disk/part_amiga.c @@ -381,6 +381,7 @@ static void part_print_amiga(struct blk_desc *dev_desc) U_BOOT_PART_TYPE(amiga) = { .name = "AMIGA", .part_type = PART_TYPE_AMIGA, + .max_entries = AMIGA_ENTRY_NUMBERS, .get_info = part_get_info_amiga, .print = part_print_amiga, .test = part_test_amiga, diff --git a/disk/part_dos.c b/disk/part_dos.c index 511917a..8226601 100644 --- a/disk/part_dos.c +++ b/disk/part_dos.c @@ -300,6 +300,7 @@ int part_get_info_dos(struct blk_desc *dev_desc, int part, U_BOOT_PART_TYPE(dos) = { .name = "DOS", .part_type = PART_TYPE_DOS, + .max_entries = DOS_ENTRY_NUMBERS, .get_info = part_get_info_ptr(part_get_info_dos), .print = part_print_ptr(part_print_dos), .test = part_test_dos, diff --git a/disk/part_efi.c b/disk/part_efi.c index 8d67c09..1924338 100644 --- a/disk/part_efi.c +++ b/disk/part_efi.c @@ -296,25 +296,6 @@ int part_get_info_efi(struct blk_desc *dev_desc, int part, return 0; }
-int part_get_info_efi_by_name(struct blk_desc *dev_desc, - const char *name, disk_partition_t *info) -{ - int ret; - int i; - for (i = 1; i < GPT_ENTRY_NUMBERS; i++) { - ret = part_get_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; -} - static int part_test_efi(struct blk_desc *dev_desc) { ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, legacymbr, 1, dev_desc->blksz); @@ -958,6 +939,7 @@ static int is_pte_valid(gpt_entry * pte) U_BOOT_PART_TYPE(a_efi) = { .name = "EFI", .part_type = PART_TYPE_EFI, + .max_entries = GPT_ENTRY_NUMBERS, .get_info = part_get_info_ptr(part_get_info_efi), .print = part_print_ptr(part_print_efi), .test = part_test_efi, diff --git a/disk/part_iso.c b/disk/part_iso.c index f9a741d..78fc97e 100644 --- a/disk/part_iso.c +++ b/disk/part_iso.c @@ -257,6 +257,7 @@ static int part_test_iso(struct blk_desc *dev_desc) U_BOOT_PART_TYPE(iso) = { .name = "ISO", .part_type = PART_TYPE_ISO, + .max_entries = ISO_ENTRY_NUMBERS, .get_info = part_get_info_iso, .print = part_print_iso, .test = part_test_iso, diff --git a/disk/part_mac.c b/disk/part_mac.c index 3952b8d..b6c082e 100644 --- a/disk/part_mac.c +++ b/disk/part_mac.c @@ -239,6 +239,7 @@ static int part_get_info_mac(struct blk_desc *dev_desc, int part, U_BOOT_PART_TYPE(mac) = { .name = "MAC", .part_type = PART_TYPE_MAC, + .max_entries = MAC_ENTRY_NUMBERS, .get_info = part_get_info_mac, .print = part_print_mac, .test = part_test_mac, diff --git a/include/part.h b/include/part.h index 226b5be..bd8fd49 100644 --- a/include/part.h +++ b/include/part.h @@ -28,6 +28,11 @@ struct block_drvr { #define PART_TYPE_AMIGA 0x04 #define PART_TYPE_EFI 0x05
+/* maximum number of partition entries supported by search */ +#define DOS_ENTRY_NUMBERS 8 +#define ISO_ENTRY_NUMBERS 64 +#define MAC_ENTRY_NUMBERS 64 +#define AMIGA_ENTRY_NUMBERS 8 /* * Type string for U-Boot bootable partitions */ @@ -146,6 +151,20 @@ int blk_get_device_by_str(const char *ifname, const char *dev_str, int blk_get_device_part_str(const char *ifname, const char *dev_part_str, struct blk_desc **dev_desc, disk_partition_t *info, int allow_whole_dev); + +/** + * part_get_info_by_name() - Search for a partition by name + * among all available registered partitions + * + * @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 part_get_info_by_name(struct blk_desc *dev_desc, + const char *name, disk_partition_t *info); + extern const struct block_drvr block_drvr[]; #else static inline struct blk_desc *blk_get_dev(const char *ifname, int dev) @@ -189,6 +208,7 @@ static inline int blk_get_device_part_str(const char *ifname, 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 @@ -225,18 +245,6 @@ struct part_driver { #include <part_efi.h> /* disk/part_efi.c */ /** - * part_get_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 part_get_info_efi_by_name(struct blk_desc *dev_desc, - const char *name, disk_partition_t *info); - -/** * write_gpt_table() - Write the GUID Partition Table to disk * * @param dev_desc - block device descriptor