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nixos/pppd: init #71105

Merged
merged 3 commits into from
Oct 16, 2019
Merged

nixos/pppd: init #71105

merged 3 commits into from
Oct 16, 2019
+203 −0

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danderson
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@danderson danderson commented Oct 14, 2019 •
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Motivation for this change

pppd is used to control a lot of home internet connections. I want to use NixOS as my home router, and I need pppd to bring up my FTTH internet connection. It will also be useful to people using DSL (PPPoE or PPPoA) and classic dial-up internet.

pppd is already available in nix as the ppp derivation. It's used by other nixos modules like pptpd, but there's no module for running PPP sessions directly. This module fixes that.

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

(Other tests)

  • Configured and ran a pppd service, and successfully got internet access using this module.
Notify maintainers

cc @falsifian (because you're the maintainer of the ppp package, which this module service-ifies)

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@danderson
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One style question I didn't know how to answer: what should the commit message be? CONTRIBUTING.md says that it should be init at <version>, but this commit only adds a nixos module, which doesn't have a version.

@alexarice
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The commit title is fine

@ofborg ofborg bot added 6.topic: nixos Issues or PRs affecting NixOS modules, or package usability issues specific to NixOS 8.has: module (update) This PR changes an existing module in `nixos/` 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin 10.rebuild-linux: 0 This PR does not cause any packages to rebuild on Linux labels Oct 14, 2019
alexarice
alexarice reviewed Oct 14, 2019
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nixos/modules/services/networking/pppd.nix
services.pppd = {
package = mkOption {
default = pkgs.ppp;
defaultText = "pkgs.ppp";
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Is this necessary, I thought the document system could cope with this

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I don't know, I was copying other nixos modules that do this with their pkg reference. I'm happy to remove it and see what happens when the docs go live?

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It can't hurt so leave it

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There is probably a way to locally build the docs but I'm not quite sure how if you wanted to check

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I'll look around tomorrow for a way to build the options search engine locally and check for this.

alexarice
alexarice suggested changes Oct 14, 2019
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Sorry I didn't notice this earlier. You haven't added you're module to module-list.nix so it won't be available.

@danderson danderson requested a review from infinisil as a code owner October 14, 2019 09:34
@danderson
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Doh! I've been testing on my router with an import directly in configuration.nix, that's why. Added to module-list.nix. Thanks for catching that!

@flokli
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flokli commented Oct 14, 2019

@danderson can you also add a small nixos test with 2 vms ping each other through a ppp(d) connection?

@danderson
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Sure! I've never set up a pppoe+pppd server, so it might take me a bit, but I'm working on it.

@danderson
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I've added a test as requested. One VM runs a PPPoE server, and the other uses this pppd module to connect as a client. Test verifies bidirectional ping reachability through the PPP link. PTAL?

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flokli commented Oct 15, 2019

@GrahamcOfBorg build nixosTests.pppd

@danderson
nixos/pppd: init
997a6f6
@danderson
nixos/tests/pppd: init
ae02b3d 
This test creates a PPPoE link between two machines, and verifies
that the machines can ping each other.
@flokli
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flokli commented Oct 15, 2019

@GrahamcOfBorg test pppd

@danderson
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Anything else we need before merging this? The PR history says I requested a review from @infinisil . I don't think I did? But I can't edit the reviewer list, and I welcome more eyes on this if that's the next step :)

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flokli commented Oct 16, 2019

@danderson Infinisil is marked as a codeowner for the module system.

I wanted to await the nixos test results from CI, and forgot about it.

Thanks for the ping!

@flokli flokli merged commit fff04a0 into NixOS:master Oct 16, 2019
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6.topic: nixos Issues or PRs affecting NixOS modules, or package usability issues specific to NixOS 8.has: module (update) This PR changes an existing module in `nixos/` 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin 10.rebuild-linux: 0 This PR does not cause any packages to rebuild on Linux
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