DEP8 test reaches out to demo.wireguard.com

[Andreas Hasenack]

The DEP8 test of wireguard reaches out to demo.wireguard.com. Internet access at large like this is blocked in the Ubuntu autopkgtest environment, and this test therefore fails:

autopkgtest [20:25:56]: test ncat-client: [-----------------------
Verifying that the existing network does not already use 192.168.4.1 ...
Loading wireguard configuration to demo server...
/usr/share/doc/wireguard-tools/examples/ncat-client-server/client.sh: connect: Connection timed out
/usr/share/doc/wireguard-tools/examples/ncat-client-server/client.sh: line 8: /dev/tcp/demo.wireguard.com/42912: Connection timed out

[dkg (dkg0)]

afaict, this is a bug in the ubuntu CI infrastructure, not in the wireguard package. As [autopkgtest](https://salsa.debian.org/ci-team/autopkgtest/blob/master/doc/README.package-tests.rst) documentation says:

    Debian's production CI infrastructure allows unrestricted network
    access, in Ubuntu's infrastructure access to sites other than
    `*.ubuntu.com` and `*.launchpad.net` happens via a proxy (limited to
    DNS and http/https).

I've just submitted https://salsa.debian.org/ci-team/autopkgtest/merge_requests/61 -- if it is merged, i will add `open-internet-access` to the list of restrictions on this test in the wireguard package, so that ubuntu CI will feel ok skipping it.

[Jason A. Donenfeld (zx2c4)]

In lieu of Debian changing something, I'd suggest replacing this package with the one we actually develop specifically for Ubuntu: https://launchpad.net/~wireguard/+archive/ubuntu/wireguard

Could you take care of importing 0.0.20190913 (or newer, depending on when you read this) from there?

[Andy Whitcroft (apw)]

Resynced with Debian. Disabled the testing as it is not apropriate in our environment.

[Andy Whitcroft (apw)]

Fixed versoin: https://launchpad.net/ubuntu/+source/wireguard/0.0.20190913-1ubuntu1