diff options
Diffstat (limited to 'nixos/modules/services/networking/dhcpcd.nix')
-rw-r--r-- | nixos/modules/services/networking/dhcpcd.nix | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/nixos/modules/services/networking/dhcpcd.nix b/nixos/modules/services/networking/dhcpcd.nix index 4b572df10b4..c0619211c2f 100644 --- a/nixos/modules/services/networking/dhcpcd.nix +++ b/nixos/modules/services/networking/dhcpcd.nix @@ -59,6 +59,16 @@ let # Use the list of allowed interfaces if specified ${optionalString (allowInterfaces != null) "allowinterfaces ${toString allowInterfaces}"} + # Immediately fork to background if specified, otherwise wait for IP address to be assigned + ${{ + background = "background"; + any = "waitip"; + ipv4 = "waitip 4"; + ipv6 = "waitip 6"; + both = "waitip 4\nwaitip 6"; + if-carrier-up = ""; + }.${cfg.wait}} + ${cfg.extraConfig} ''; @@ -146,6 +156,21 @@ in ''; }; + networking.dhcpcd.wait = mkOption { + type = types.enum [ "background" "any" "ipv4" "ipv6" "both" "if-carrier-up" ]; + default = "any"; + description = '' + This option specifies when the dhcpcd service will fork to background. + If set to "background", dhcpcd will fork to background immediately. + If set to "ipv4" or "ipv6", dhcpcd will wait for the corresponding IP + address to be assigned. If set to "any", dhcpcd will wait for any type + (IPv4 or IPv6) to be assigned. If set to "both", dhcpcd will wait for + both an IPv4 and an IPv6 address before forking. + The option "if-carrier-up" is equivalent to "any" if either ethernet + is plugged nor WiFi is powered, and to "background" otherwise. + ''; + }; + }; @@ -165,6 +190,8 @@ in before = [ "network-online.target" ]; after = [ "systemd-udev-settle.service" ]; + restartTriggers = [ exitHook ]; + # Stopping dhcpcd during a reconfiguration is undesirable # because it brings down the network interfaces configured by # dhcpcd. So do a "systemctl restart" instead. @@ -177,7 +204,7 @@ in serviceConfig = { Type = "forking"; PIDFile = "/run/dhcpcd.pid"; - ExecStart = "@${dhcpcd}/sbin/dhcpcd dhcpcd -w --quiet ${optionalString cfg.persistent "--persistent"} --config ${dhcpcdConf}"; + ExecStart = "@${dhcpcd}/sbin/dhcpcd dhcpcd --quiet ${optionalString cfg.persistent "--persistent"} --config ${dhcpcdConf}"; ExecReload = "${dhcpcd}/sbin/dhcpcd --rebind"; Restart = "always"; }; @@ -185,11 +212,7 @@ in environment.systemPackages = [ dhcpcd ]; - environment.etc = - [ { source = exitHook; - target = "dhcpcd.exit-hook"; - } - ]; + environment.etc."dhcpcd.exit-hook".source = exitHook; powerManagement.resumeCommands = mkIf config.systemd.services.dhcpcd.enable '' |