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Merge "Add old DeviceInfo version documentation" am: d0c02789ad

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Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2494236

Change-Id: I4d35ad0815fcacf6c604711823df826e1ea2d969
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Seth Moore 2023-03-17 21:31:26 +00:00 committed by Automerger Merge Worker
commit ec275b18d7
1 changed files with 61 additions and 6 deletions
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67
security/rkp/aidl/android/hardware/security/keymint/DeviceInfo.aidl
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@ -17,11 +17,11 @@
package android.hardware.security.keymint;
/**
* DeviceInfo contains information about the device that's fed in as AAD in the signature of the
* device private key over the MAC key used for the bundle of public keys. These values are intended
* to be checked by the server to verify that the certificate signing request crafted by
* an IRemotelyProvisionedComponent HAL instance is coming from the expected device based
* on values initially uploaded during device manufacture in the factory.
* DeviceInfo contains information about the device that's signed by the
* IRemotelyProvisionedComponent HAL. These values are intended to be checked by the server to
* verify that the certificate signing request crafted by an IRemotelyProvisionedComponent HAL
* instance is coming from the expected device based on values initially uploaded during device
* manufacture in the factory.
* @hide
*/
@VintfStability
@ -31,6 +31,11 @@ parcelable DeviceInfo {
* canonicalized according to the specification in RFC 7049. The ordering presented here is
* non-canonical to group similar entries semantically.
*
* The DeviceInfo has changed across versions 1, 2, and 3 of the HAL. All versions of the
* DeviceInfo CDDL are described as follows. Please refer to the CDDL structure version
* that corresponds to the HAL version you are working with:
*
* Version 3, introduced in Android 14:
* DeviceInfo = {
* "brand" : tstr,
* "manufacturer" : tstr,
@ -43,13 +48,63 @@ parcelable DeviceInfo {
* ? "os_version" : tstr, ; Same as
* ; android.os.Build.VERSION.release
* ; Not optional for TEE.
* "system_patch_level" : uint, ; YYYYMMDD
* "system_patch_level" : uint, ; YYYYMM
* "boot_patch_level" : uint, ; YYYYMMDD
* "vendor_patch_level" : uint, ; YYYYMMDD
* "security_level" : "tee" / "strongbox",
* "fused": 1 / 0, ; 1 if secure boot is enforced for the processor that the IRPC
* ; implementation is contained in. 0 otherwise.
* }
*
* ---------------------------------------------------------------------------------------------
*
* Version 2, introduced in Android 13:
* DeviceInfo = {
* "brand" : tstr,
* "manufacturer" : tstr,
* "product" : tstr,
* "model" : tstr,
* "device" : tstr,
* "vb_state" : "green" / "yellow" / "orange", ; Taken from the AVB values
* "bootloader_state" : "locked" / "unlocked", ; Taken from the AVB values
* "vbmeta_digest": bstr, ; Taken from the AVB values
* ? "os_version" : tstr, ; Same as
* ; android.os.Build.VERSION.release
* ; Not optional for TEE.
* "system_patch_level" : uint, ; YYYYMM
* "boot_patch_level" : uint, ; YYYYMMDD
* "vendor_patch_level" : uint, ; YYYYMMDD
* "version" : 2, ; The CDDL schema version.
* "security_level" : "tee" / "strongbox",
* "fused": 1 / 0, ; 1 if secure boot is enforced for the processor that the IRPC
* ; implementation is contained in. 0 otherwise.
*
* ---------------------------------------------------------------------------------------------
*
* Version 1, introduced in Android 12:
* DeviceInfo = {
* ? "brand" : tstr,
* ? "manufacturer" : tstr,
* ? "product" : tstr,
* ? "model" : tstr,
* ? "board" : tstr,
* ? "vb_state" : "green" / "yellow" / "orange", ; Taken from the AVB values
* ? "bootloader_state" : "locked" / "unlocked", ; Taken from the AVB values
* ? "vbmeta_digest": bstr, ; Taken from the AVB values
* ? "os_version" : tstr, ; Same as
* ; android.os.Build.VERSION.release
* ? "system_patch_level" : uint, ; YYYYMM
* ? "boot_patch_level" : uint, ; YYYYMMDD
* ? "vendor_patch_level" : uint, ; YYYYMMDD
* "version" : 1, ; The CDDL schema version.
* "security_level" : "tee" / "strongbox"
* "att_id_state": "locked" / "open", ; Attestation IDs State. If "locked", this
* ; indicates a device's attestable IDs are
* ; factory-locked and immutable. If "open",
* ; this indicates the device is still in a
* ; provisionable state and the attestable IDs
* ; are not yet frozen.
* }
*/
byte[] deviceInfo;
}