localproxy does not allow multiple services

[robertsarkozi]

Hello,

As per the AWS documentation I should be able to achieve this scenario, in cli mode (points 4b and 5b): https://docs.aws.amazon.com/iot/latest/developerguide/multiplexing.html I should be able to add more than one service when starting the localproxy either in destination or source mode.

What I get is the following error: Invalid endpoint specified. This is because the get_host_and_port function clearly parses only one specified service.

How can I achieve what the documentation states via cli?

Thanks

[kareali]

Hi Robert, Which branch did you use to build the localproxy? And could you share the exact command you rand and the output?

[MiaoZhangAWS]

To add on, can you enable trace level output by specifying -v 6 when start local proxy? Explanation on this argument can be found in -v/--verbose.

[robertsarkozi]

Hello,

Thanks for the quick responses.

I didn't manually build the localproxy. I'm using the demo in this page: https://docs.aws.amazon.com/iot/latest/developerguide/secure-tunneling-demo.html. Actually, I forked it because I want to try ssh service with http, so I started to change it according to the documentation.

It works if I switch from ssh to http in all the related files (run-dest-demo.sh, index.js, bin/tunnel/create.sh), but when I add both, I get the error I posted.

The run-dest-demo.sh script fails if I add both services, because I changed it from 'localhost:22' to 'localhost:22,localhost:80' or 'SSH1=22,HTTP1=80' (in this case I change the other files accordingly).

Maybe the demo contains and older version of localproxy? Even so, if I look at the code in the master branch/main.cpp, the function I mentioned doesn't allow two services to be specified in cli.

[kareali]

You're welcome! and You're also correct, the demo repo has not been updated yet to include the latest localproxy binary.

The latest commit does though, like this for example:

./localproxy -r us-east-1 -d HTTP1=80,SSH1=22 -t destination_client_access_token

you can find more examples on how to use it in this tutorial

[robertsarkozi]

Thanks,

Well, yes, that's the link by which I was trying to change the tutorial to have two services.

I will then open an issue on the tutorial github page for it to be updated, and try to build it myself...

[robertsarkozi]

If I'm correct, there is a pull request for updating the demo repo with the latest localproxy changes: https://github.com/aws-samples/iot-secure-tunneling-demo/pull/9

Can this be approved and merged, @KareemAliAWS?

[kareali]

@robertsarkozi they are still pending review.

[kareali]

@robertsarkozi FYI: The PRs have merged