You can see an example of the approximate OpenSSL calls you'd have to make
in a test I wrote:
https://android.googlesource.com/platform/libcore/+/master/crypto/src/test/java/org/conscrypt/NativeCryptoTest.java
Starting around line 2073 in the "loadTestEngine" method. You probably want
to do DIR_ADD with ApplicationInfo#nativeLibraryDir.
On Tue, Sep 10, 2013 at 12:19 AM, tera tellence <tellt...@googlemail.com>wrote:
> Hi All,
>
> I have not had success with this. Can you please give me some directions?
> Thanks in Advance!
>
> -Tera
>
>
> On Tue, Sep 3, 2013 at 12:15 PM, tera tellence <tellt...@googlemail.com>wrote:
>
>> Dear All,
>>
>> How can one call an external engine dynamically in Android?
>> Does the Android allow for dynamic loading of engines?
>>
>> I recompiled OpenSSL1.0.0c with Engine support and added it to my App as
>> a shared library. I also compiled the engine source codes and got the
>> shared library of the engine in the "lib" directory of my App.Then in my
>> Native JNI Code I tried to load my engine using:
>>
>> ENGINE_load_dynamic();
>> ENGINE * dyn = ENGINE_by_id( "dynamic" );
>>
>>
>> char * engine_path = "/data/data/com.example.engine/lib/libmyengine.so";
>>
>> if ( 1 != ENGINE_ctrl_cmd_string( dyn, "SO_PATH", engine_path,
>> CMD_MANDATORY ) )
>> //print error path
>>
>> if ( 1 != ENGINE_ctrl_cmd_string( dyn, "ID", "myengine", CMD_MANDATORY ) )
>> //print error id
>>
>> if ( 1 != ENGINE_ctrl_cmd( dyn, "LIST_ADD", 1, NULL, NULL, CMD_MANDATORY
>> ) )
>> //print error list_add
>>
>> if ( 1 != ENGINE_ctrl_cmd( dyn, "LOAD", 1, NULL, NULL, CMD_MANDATORY ) )
>> //print error load
>>
>>
>> In the above code, the LOAD seems to fail. In the Java code, I did make a
>> call to:
>>
>> static{
>> System.loadLibrary("myengine");
>> }
>>
>> Please advise. Could anyone explain how I can load my engine?
>>
>> Thanks.
>>
>
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