[U-Boot] [PATCH 1/1] avb2.0: add get_size_of_partition()

[Sam Protsenko]

On Mon, Jul 9, 2018 at 3:15 PM, Igor Opaniuk <igor.opaniuk at linaro.org> wrote:
> Implement get_size_of_partition() operation,
> which is required by the latest upstream libavb [1].
>
> [1] https://android.googlesource.com/platform/external/avb/+/master/README.md
>
> Signed-off-by: Igor Opaniuk <igor.opaniuk at linaro.org>
> ---

Reviewed-by: Sam Protsenko <semen.protsenko at linaro.org>

>  common/avb_verify.c | 33 ++++++++++++++++++++++++++++++++-
>  1 file changed, 32 insertions(+), 1 deletion(-)
>
> diff --git a/common/avb_verify.c b/common/avb_verify.c
> index f9a00f8..5eabab0 100644
> --- a/common/avb_verify.c
> +++ b/common/avb_verify.c
> @@ -699,6 +699,37 @@ 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_IO, 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_IO;
> +
> +       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
>   * ============================================================================
> @@ -721,7 +752,7 @@ 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;
> --
> 2.7.4
>