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nixos/dhcpcd: if disabled IPv6 don't solicit or accept IPv6 #101249

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merged 1 commit into from Nov 4, 2020

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@Izorkin
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@Izorkin Izorkin commented Oct 21, 2020

Motivation for this change

Don't solicit or accept IPv6 Router Advertisements and DHCPv6 if networking.enableIPv6 = false
And skip this logs:

dhcpcd[116395]: dev: loaded udev
dhcpcd[116395]: DUID 00:04:80:ae:ba:...
dhcpcd[116395]: eno1: IAID 67:...
dhcpcd[116395]: ipv6_addaddr1: Permission denied
dhcpcd[116395]: eno1: adding address fe80::21e:...
Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • 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 nixpkgs-review --run "nixpkgs-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.
@Izorkin
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@Izorkin Izorkin commented Oct 30, 2020

@flokli
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@flokli flokli commented Nov 1, 2020

@Izorkin does this cover NetworkManager too, as reported in #87802?

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@Izorkin Izorkin commented Nov 2, 2020

@flokli this only covers the DHCP server

@Mic92 Mic92 merged commit f2ec450 into NixOS:master Nov 4, 2020
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@Izorkin Izorkin deleted the dhcpd-ipv6 branch Nov 4, 2020
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3 participants