If CONFIG_PARTITION_TYPE_GUID is enabled, the type GUID will be preserved when writing out the partition string. It was already respected when writing out partitions; this ensures that if you capture the current partition layout and write it back (such as when renaming), the type GUIDs are preserved.
Signed-off-by: Joshua Watt JPEWhacker@gmail.com --- cmd/gpt.c | 16 ++++++++++ test/py/tests/test_gpt.py | 65 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 81 insertions(+)
diff --git a/cmd/gpt.c b/cmd/gpt.c index 45fbe07404..0090e02110 100644 --- a/cmd/gpt.c +++ b/cmd/gpt.c @@ -173,6 +173,9 @@ static int calc_parts_list_len(int numparts) /* see part.h for definition of struct disk_partition */ partlistlen += numparts * (strlen("start=MiB,") + sizeof(lbaint_t) + 1); partlistlen += numparts * (strlen("size=MiB,") + sizeof(lbaint_t) + 1); +#ifdef CONFIG_PARTITION_TYPE_GUID + partlistlen += numparts * (strlen("type=,") + UUID_STR_LEN + 1); +#endif partlistlen += numparts * (strlen("uuid=;") + UUID_STR_LEN + 1); /* for the terminating null */ partlistlen++; @@ -211,6 +214,11 @@ static struct disk_part *allocate_disk_part(struct disk_partition *info, PART_TYPE_LEN); newpart->gpt_part_info.type[PART_TYPE_LEN - 1] = '\0'; newpart->gpt_part_info.bootable = info->bootable; +#ifdef CONFIG_PARTITION_TYPE_GUID + strncpy(newpart->gpt_part_info.type_guid, (const char *)info->type_guid, + UUID_STR_LEN); + newpart->gpt_part_info.type_guid[UUID_STR_LEN] = '\0'; +#endif #ifdef CONFIG_PARTITION_UUIDS strncpy(newpart->gpt_part_info.uuid, (const char *)info->uuid, UUID_STR_LEN); @@ -252,6 +260,9 @@ static void print_gpt_info(void) curr->gpt_part_info.name); printf("Type %s, bootable %d\n", curr->gpt_part_info.type, curr->gpt_part_info.bootable & PART_BOOTABLE); +#ifdef CONFIG_PARTITION_TYPE_GUID + printf("Type GUID %s\n", curr->gpt_part_info.type_guid); +#endif #ifdef CONFIG_PARTITION_UUIDS printf("UUID %s\n", curr->gpt_part_info.uuid); #endif @@ -299,6 +310,11 @@ static int create_gpt_partitions_list(int numparts, const char *guid, curr->gpt_part_info.blksz); strncat(partitions_list, partstr, PART_NAME_LEN + 1);
+#ifdef CONFIG_PARTITION_TYPE_GUID + strcat(partitions_list, ",type="); + strncat(partitions_list, curr->gpt_part_info.type_guid, + UUID_STR_LEN + 1); +#endif strcat(partitions_list, ",uuid="); strncat(partitions_list, curr->gpt_part_info.uuid, UUID_STR_LEN + 1); diff --git a/test/py/tests/test_gpt.py b/test/py/tests/test_gpt.py index 5d23f9b292..93007dee9a 100644 --- a/test/py/tests/test_gpt.py +++ b/test/py/tests/test_gpt.py @@ -16,6 +16,35 @@ the test. # Mark all tests here as slow pytestmark = pytest.mark.slow
+def parse_gpt_parts(disk_str): + """Parser a partition string into a list of partitions. + + Args: + disk_str: The disk description string, as returned by `gpt read` + + Returns: + A list of parsed partitions. Each partition is a dictionary with the + string value from each specified key in the partition description, or a + key with with the value True for a boolean flag + """ + parts = [] + for part_str in disk_str.split(';'): + part = {} + for option in part_str.split(","): + if not option: + continue + + if "=" in option: + key, value = option.split("=") + part[key] = value + else: + part[option] = True + + if part: + parts.append(part) + + return parts + class GptTestDiskImage(object): """Disk Image used by the GPT tests."""
@@ -49,11 +78,13 @@ class GptTestDiskImage(object): u_boot_utils.run_and_log(u_boot_console, cmd) # part1 offset 1MB size 1MB cmd = ('sgdisk', '--new=1:2048:4095', '--change-name=1:part1', + '--partition-guid=1:33194895-67f6-4561-8457-6fdeed4f50a3', '-A 1:set:2', persistent) # part2 offset 2MB size 1.5MB u_boot_utils.run_and_log(u_boot_console, cmd) cmd = ('sgdisk', '--new=2:4096:7167', '--change-name=2:part2', + '--partition-guid=2:cc9c6e4a-6551-4cb5-87be-3210f96c86fb', persistent) u_boot_utils.run_and_log(u_boot_console, cmd) cmd = ('sgdisk', '--load-backup=' + persistent) @@ -88,6 +119,40 @@ def test_gpt_read(state_disk_image, u_boot_console): assert '0x00000800 0x00000fff "part1"' in output assert '0x00001000 0x00001bff "part2"' in output
+@pytest.mark.boardspec('sandbox') +@pytest.mark.buildconfigspec('cmd_gpt') +@pytest.mark.buildconfigspec('partition_type_guid') +@pytest.mark.requiredtool('sgdisk') +def test_gpt_read_var(state_disk_image, u_boot_console): + """Test the gpt read command.""" + + u_boot_console.run_command('host bind 0 ' + state_disk_image.path) + output = u_boot_console.run_command('gpt read host 0 gpt_parts') + assert 'success!' in output + + output = u_boot_console.run_command('echo ${gpt_parts}') + parts = parse_gpt_parts(output.rstrip()) + + assert parts == [ + { + "uuid_disk": "375a56f7-d6c9-4e81-b5f0-09d41ca89efe", + }, + { + "name": "part1", + "start": "0x100000", + "size": "0x100000", + "type": "0fc63daf-8483-4772-8e79-3d69d8477de4", + "uuid": "33194895-67f6-4561-8457-6fdeed4f50a3", + }, + { + "name": "part2", + "start": "0x200000", + "size": "0x180000", + "type": "0fc63daf-8483-4772-8e79-3d69d8477de4", + "uuid": "cc9c6e4a-6551-4cb5-87be-3210f96c86fb", + }, + ] + @pytest.mark.boardspec('sandbox') @pytest.mark.buildconfigspec('cmd_gpt') @pytest.mark.requiredtool('sgdisk')