what is the best way to configure LIO through c or c++ program?

I have been using targetcli to play around with LIO. I need to configure the LIO targets,
backstores, luns etc through c or c++ program. There are multiple ways to achieve that
- use targetcli. It is easy but then you are invoking python from the c/c++ program and
have to parse the targetcli output. I am not thrilled about parsing text output and i am
not sure how granular it is (in terms of configFS attributes). Also, it has python
dependency.
- use configFS directly. That means, interact with the kernel drivers directly. It gives
more control but i am not sure how frequently configFS LIO attributes change from one
release to another and what is backward compatibility? 
- i would prefer some c lib which i can link to. But i didn't come across one yet

[Andy Grover]

On 02/06/2017 06:02 PM, spardeshi(a)commvault.com wrote:
>  I have been using targetcli to play around with LIO. I need to
>  configure the LIO targets, backstores, luns etc through c or c++
>  program. There are multiple ways to achieve that - use targetcli. It
>  is easy but then you are invoking python from the c/c++ program and
>  have to parse the targetcli output. I am not thrilled about parsing
>  text output and i am not sure how granular it is (in terms of
>  configFS attributes). Also, it has python dependency. - use configFS
>  directly. That means, interact with the kernel drivers directly. It
>  gives more control but i am not sure how frequently configFS LIO
>  attributes change from one release to another and what is backward
>  compatibility? - i would prefer some c lib which i can link to. But i
>  didn't come across one yet 
Yes I think you're right. There's a big opportunity for a person or 
people to step up and make this happen. I'd hope that multiple 
interested parties would contribute, so the workload was shared as much 
as possible.

Regards -- Andy