Add function to find a GPT table entry by name.
Tested on little endian ARMv7 and ARMv8 configurations
Signed-off-by: Steve Rae <s...@broadcom.com>
---
disk/part_efi.c | 21 ++++++++++++++++++++-
include/part.h | 11 +++++++++++
2 files changed, 31 insertions(+), 1 deletion(-)
diff --git a/disk/part_efi.c b/disk/part_efi.c
index 78a3782..612f092 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -181,7 +181,7 @@ int get_partition_info_efi(block_dev_desc_t * dev_desc, int
part,
UUID_STR_FORMAT_GUID);
#endif
- debug("%s: start 0x" LBAF ", size 0x" LBAF ", name %s", __func__,
+ debug("%s: start 0x" LBAF ", size 0x" LBAF ", name %s\n", __func__,
info->start, info->size, info->name);
/* Remember to free pte */
@@ -189,6 +189,25 @@ int get_partition_info_efi(block_dev_desc_t * dev_desc,
int part,
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);
diff --git a/include/part.h b/include/part.h
index f2c8c64..a496a4a 100644
--- a/include/part.h
+++ b/include/part.h
@@ -180,6 +180,17 @@ int test_part_amiga (block_dev_desc_t *dev_desc);
#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);
--
1.8.5
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