Daniel Barlow
7e2b0068e6
There is nothing in this commit except for the changes made by nix-shell -p nixfmt-rfc-style --run "nixfmt ." If this has mucked up your open branches then sorry about that. You can probably nixfmt them to match before merging
48 lines
1.1 KiB
Nix
48 lines
1.1 KiB
Nix
{
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liminix,
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writeAshScript,
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serviceFns,
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lib,
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}:
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{ interface }:
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let
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inherit (liminix.services) longrun;
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name = "${interface.name}.dhcpc";
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script = writeAshScript "dhcp-notify" { } ''
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. ${serviceFns}
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exec 2>&1
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action=$1
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set_address() {
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ip address replace $ip/$mask dev $interface
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(in_outputs ${name}
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for i in lease mask ip router siaddr dns serverid subnet opt53 interface ; do
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(printenv $i || true) > $i
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done)
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}
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case $action in
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deconfig)
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ip address flush $interface
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ip link set up dev $interface
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;;
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bound)
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# this doesn't actually replace, it adds a new address.
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set_address
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echo >/proc/self/fd/10
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;;
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renew)
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set_address
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;;
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nak)
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echo "received NAK on $interface"
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;;
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esac
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'';
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in
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longrun {
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inherit name;
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run = "exec /bin/udhcpc -f -i $(output ${interface} ifname) -x hostname:$(cat /proc/sys/kernel/hostname) -s ${script}";
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notification-fd = 10;
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dependencies = [ interface ];
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}
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