diff options
| author | Yifan Hong <elsk@google.com> | 2017-03-27 17:10:42 -0700 |
|---|---|---|
| committer | Yifan Hong <elsk@google.com> | 2017-03-30 17:50:22 -0700 |
| commit | db93348cb674bb93a117c0f7a140e2b76cfca5c6 (patch) | |
| tree | 4daa2e96281c89a9e778520da39f0d676ca5ab13 /transport/base | |
| parent | a62432bf9b64b8b3f5cc902218f33e1648027732 (diff) | |
| download | libhidl-db93348cb674bb93a117c0f7a140e2b76cfca5c6.tar.gz | |
Add getHashChain() to IBase.
Each interface has a getHashChain() method that
returns the hash of all .hal files from the rtti
of the interface up to IBase.
Test: pass (since no frozen hashes for interfaces yet)
Bug: 36602587
Change-Id: I068cc7a09fea1fdab050b3b7e5b3d4360bd56cdc
Diffstat (limited to 'transport/base')
| -rw-r--r-- | transport/base/1.0/IBase.hal | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/transport/base/1.0/IBase.hal b/transport/base/1.0/IBase.hal index 9301c65..e862ec8 100644 --- a/transport/base/1.0/IBase.hal +++ b/transport/base/1.0/IBase.hal @@ -41,7 +41,7 @@ interface IBase { * package android.hardware.foo@1.0; * interface IParent {}; * interface IChild extends IParent {}; - * Calling interfaceChain on an IChild object will yield the following: + * Calling interfaceChain on an IChild object must yield the following: * ["android.hardware.foo@1.0::IChild", * "android.hardware.foo@1.0::IParent" * "android.hidl.base@1.0::IBase"] @@ -57,7 +57,7 @@ interface IBase { * package android.hardware.foo@1.0; * interface IParent {}; * interface IChild extends IParent {}; - * Calling interfaceDescriptor on an IChild object will yield + * Calling interfaceDescriptor on an IChild object must yield * "android.hardware.foo@1.0::IChild" * * @return descriptor a descriptor of the run-time type of the @@ -116,4 +116,23 @@ interface IBase { * Must support empty for default debug information. */ debug(handle fd, vec<string> options); + + /* + * Returns hashes of the source HAL files that define the interfaces of the + * runtime type information on the object. + * For example, for the following interface definition: + * package android.hardware.foo@1.0; + * interface IParent {}; + * interface IChild extends IParent {}; + * Calling interfaceChain on an IChild object must yield the following: + * [(hash of IChild.hal), + * (hash of IParent.hal) + * (hash of IBase.hal)]. + * + * SHA-256 is used as the hashing algorithm. Each hash has 32 bytes + * according to SHA-256 standard. + * + * @return hashchain a vector of SHA-1 digests + */ + getHashChain() generates (vec<uint8_t[32]> hashchain); }; |