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nixos/dhcpcd: Add option for dhcpcd waiting behaviour

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This commit is contained in:
Benedikt Hunger 2020-01-28 11:51:50 +01:00
parent c8c0bd1fea
commit 0767de3dc8
1 changed files with 26 additions and 1 deletions
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27
nixos/modules/services/networking/dhcpcd.nix
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@ -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}}
${cfg.extraConfig}
'';
@ -146,6 +156,21 @@ in
'';
};
networking.dhcpcd.wait = mkOption {
type = types.enum [ "background" "any" "ipv4" "ipv6" "both" "if-carrier-up" ];
default = "any";
description = ''
This option specifies when the dhcpcd service will fork to background.
If set to "background", dhcpcd will fork to background immediately.
If set to "ipv4" or "ipv6", dhcpcd will wait for the corresponding IP
address to be assigned. If set to "any", dhcpcd will wait for any type
(IPv4 or IPv6) to be assigned. If set to "both", dhcpcd will wait for
both an IPv4 and an IPv6 address before forking.
The option "if-carrier-up" is equivalent to "any" if either ethernet
is plugged nor WiFi is powered, and to "background" otherwise.
'';
};
};
@ -177,7 +202,7 @@ in
serviceConfig =
{ Type = "forking";
PIDFile = "/run/dhcpcd.pid";
ExecStart = "@${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";
};