65 lines
1.8 KiB
Nix
65 lines
1.8 KiB
Nix
{
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liminix
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, writeAshScript
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, serviceFns
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} :
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let
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inherit (liminix.services) longrun;
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in
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interface: { dependencies ? [] } @ args:
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let
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name = "${interface.device}.udhcp";
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script = writeAshScript "udhcp-notify" {
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# runtimeInputs = [ iproute2 ] using busybox version of ip
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} ''
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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 > $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 longrun {
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inherit name;
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run = "/bin/udhcpc -f -i ${interface.device} -x hostname:$(cat /proc/sys/kernel/hostname) -s ${script}";
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notification-fd = 10;
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dependencies = [ interface ] ++ dependencies;
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}
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# lease=86400
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# mask=24
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# ip=10.0.2.15
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# router=10.0.2.2
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# siaddr=10.0.2.2
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# dns=10.0.2.3
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# serverid=10.0.2.2
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# subnet=255.255.255.0
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# SHLVL=2
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# opt53=05
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# interface=eth0
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# PATH=/nix/store/npy692wik809z3vdwrkrj2wixjkr33kp-busybox-mips-unknown-linux-musl-1.35.0/bin:/nix/store/
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# pj0b27l5728cypa5mmagz0q8ibzpik0h-execline-mips-unknown-linux-musl-2.9.0.1-bin/bin:/nix/store/rfjiw4dnv29daqc9971qmica1h86l0s0-s6-linux-init-mips-unknown-linux-musl-1.0.8.0-bin/bin:/nix/store/4wn3jm7yy2gfi0is0yy75lifbq5zjwz7-s6-rc-mips-unknown-linux-musl-0.5.3.2-bin/bin:/usr/bin:/bin
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# _=/nix/store/npy692wik809z3vdwrkrj2wixjkr33kp-busybox-mips-unknown-linux-musl-1.35.0/bin/env
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# /
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