60 lines
1.5 KiB
Nix
60 lines
1.5 KiB
Nix
{
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liminix
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, busybox
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, writeShellScript
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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: { ... } @ args:
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let
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name = "${interface.device}.udhcp";
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script = writeShellScript "udhcp-notify" ''
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action=$1
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set_address() {
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ip address replace $ip/$mask dev $interface
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dir=/run/service-state/${name}.service/
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mkdir -p $dir
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for i in lease mask ip router siaddr dns serverid subnet opt53 interface ; do
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echo ''${!i} > $dir/$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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;;
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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 $interface"
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;;
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esac
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'';
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in longrun {
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inherit name;
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run = "${busybox}/bin/udhcpc -f -i ${interface.device} -s ${script}";
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dependencies = [ interface ];
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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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