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fs_mgr: Clear AvbOps struct. 

This ensures that future operations (e.g. function pointers in the
AvbOps struct) added to AvbOps are set to NULL.

Bug: 37709309
Test: Manually tested on UEFI-based bootloader.
Change-Id: If83ea57b7abad94e472768c594efa210e3351a4d
This commit is contained in:
David Zeuthen 2017-05-01 12:43:34 -04:00
parent ae10af6050
commit 16c6fd1da7
1 changed files with 3 additions and 1 deletions
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4
fs_mgr/fs_mgr_avb_ops.cpp
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@ -96,7 +96,9 @@ FsManagerAvbOps::FsManagerAvbOps(const std::string& device_file_by_name_prefix)
// We only need to provide the implementation of read_from_partition()
// operation since that's all what is being used by the avb_slot_verify().
// Other I/O operations are only required in bootloader but not in
// user-space so we set them as dummy operations.
// user-space so we set them as dummy operations. Also zero the entire
// struct so operations added in the future will be set to NULL.
memset(&avb_ops_, 0, sizeof(AvbOps));
avb_ops_.read_from_partition = read_from_partition;
avb_ops_.read_rollback_index = dummy_read_rollback_index;
avb_ops_.validate_vbmeta_public_key = dummy_validate_vbmeta_public_key;