diff options
| -rw-r--r-- | common/avb_verify.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/common/avb_verify.c b/common/avb_verify.c index 20e35ade302..82ddebcfc24 100644 --- a/common/avb_verify.c +++ b/common/avb_verify.c @@ -700,6 +700,37 @@ static AvbIOResult get_unique_guid_for_partition(AvbOps *ops, } /** + * get_size_of_partition() - gets the size of a partition identified + * by a string name + * + * @ops: contains AVB ops handlers + * @partition: partition name (NUL-terminated UTF-8 string) + * @out_size_num_bytes: returns the value of a partition size + * + * @return: + * AVB_IO_RESULT_OK, on success (GUID found) + * AVB_IO_RESULT_ERROR_INSUFFICIENT_SPACE, out_size_num_bytes is NULL + * AVB_IO_RESULT_ERROR_NO_SUCH_PARTITION, if partition was not found + */ +static AvbIOResult get_size_of_partition(AvbOps *ops, + const char *partition, + u64 *out_size_num_bytes) +{ + struct mmc_part *part; + + if (!out_size_num_bytes) + return AVB_IO_RESULT_ERROR_INSUFFICIENT_SPACE; + + part = get_partition(ops, partition); + if (!part) + return AVB_IO_RESULT_ERROR_NO_SUCH_PARTITION; + + *out_size_num_bytes = part->info.blksz * part->info.size; + + return AVB_IO_RESULT_OK; +} + +/** * ============================================================================ * AVB2.0 AvbOps alloc/initialisation/free * ============================================================================ @@ -722,7 +753,7 @@ AvbOps *avb_ops_alloc(int boot_device) ops_data->ops.read_is_device_unlocked = read_is_device_unlocked; ops_data->ops.get_unique_guid_for_partition = get_unique_guid_for_partition; - + ops_data->ops.get_size_of_partition = get_size_of_partition; ops_data->mmc_dev = boot_device; return &ops_data->ops; |