Fix below compiler [1] warning:
common/avb_verify.c: In function ‘avb_find_dm_args’:
common/avb_verify.c:179:30: warning: left-hand operand of comma expression has no effect [-Wunused-value]
for (i = 0; i < AVB_MAX_ARGS, args[i]; ++i) {
[1] aarch64-linux-gnu-gcc (Linaro GCC 7.2-2017.11)
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Implement get_size_of_partition() operation,
which is required by the latest upstream libavb [1].
[1] https://android.googlesource.com/platform/external/avb/+/android-p-preview-5
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Acked-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Use blk_dread()/blk_dwrite() in mmc_read()/mmc_write() AVB operation
implementations. This fixes compilation issues when CONFIG_BLK is
enabled.
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Tested-by: Eugeniu Rosca <rosca.eugeniu@gmail.com>
1. Add initial support of boot states mode (red, green, yellow)
2. Add functions for enforcing dm-verity configurations
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Implement AVB ops on top of existing mmc subsystem API. Currently there
is a full implementation of such operations, defined by [1]
AVB2.0 specification:
.read_from_partition() - reads N bytes from a partition identified by
a name.
.write_to_partition() - Writes N bytes to a partition identified by a name.
.validate_vbmeta_public_key() - checks if the given public ‘vbmeta’
partition is trusted.
.get_unique_guid_for_partition() - Gets the GUID for a partition identified
by a string name.
As [1] specification recommends to use tamper-evident storage for storing
rollback indexes and device state (LOCKED/UNLOCKED),
currently are only stubs instead of full implementation for these ops:
.read_rollback_index() - Gets the rollback index for a given index location
.write_rollback_index() - Sets the rollback index to a given location
.read_is_device_unlocked() - Gets where the device is unlocked
[1] https://android.googlesource.com/platform/external/avb/+/master/README.md
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
Eugeniu Rosca
Igor Opaniuk