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added dynamic lan client hostname resolution to dnsmasq and unbound

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This commit is contained in:
Ellis Rahhal 2024-11-20 19:11:54 -08:00
parent b35b792cef
commit 7a0588afd2
2 changed files with 49 additions and 33 deletions
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59
profiles/dnsmasq.nix
View file

@ -2,6 +2,29 @@
let
lan-interface = config.homefree.network.lan-interface;
wan-interface = config.homefree.network.wan-interface;
localDomain = config.homefree.system.localDomain;
dhcp-script = pkgs.writeShellScript "dhcp-script" ''
# $1 = action (add, del, old)
# $2 = MAC address
# $3 = IP address
# $4 = hostname
if [ "$1" = "add" ]; then
${pkgs.dnsutils}/bin/nsupdate -l <<EOF
server 127.0.0.1
zone ${localDomain}
update delete $4.${localDomain} A
update add $4.${localDomain} 3600 A $3
send
EOF
${pkgs.dnsutils}/bin/nsupdate -l <<EOF
server 127.0.0.1
update delete $4 A
update add $4 3600 A $3
send
EOF
fi
'';
in
{
services.dnsmasq = {
@ -44,8 +67,7 @@ in
# "lan,10.0.0.100,10.0.0.254,255.255.255.0,8h"
# "iot,10.2.1.100,10.2.1.254,255.255.255.0,8h"
# "guest,10.3.1.100,10.3.1.254,255.255.255.0,8h"
"tag:${lan-interface},::1,constructor:${lan-interface},ra-names,slaac,12h" #ipv6
# "::,constructor:${lan-interface},ra-stateless" # ipv6
"tag:${lan-interface},::1,constructor:${lan-interface},ra-names,slaac,12h" # ipv6
"${lan-interface},10.0.0.100,10.0.0.254,255.255.255.0,8h" # ipv4
];
@ -63,41 +85,12 @@ in
dhcp-host = lib.map (ip-config:
"${ip-config.mac-address},${ip-config.hostname},${ip-config.ip},${config.homefree.network.static-ip-expiration}")
config.homefree.network.static-ips;
dhcp-script = "${dhcp-script}";
};
};
## dhcpd6 is obsolete
# services.dhcpd6 = {};
# services.kea.dhcp6 = {
# enable = true;
# settings = {
# interfaces-config = {
# interfaces = [
# lan-interface
# ];
# };
# lease-database = {
# name = "/var/lib/kea/dhcp6.leases";
# persist = true;
# type = "memfile";
# };
# preferred-lifetime = 3000;
# rebind-timer = 2000;
# renew-timer = 1000;
# subnet6 = [
# {
# id = 1;
# subnet = "2001:db8:1::/64";
# pools = [
# {
# pool = "2001:db8:1::1-2001:db8:1::ffff";
# }
# ];
# }
# ];
# valid-lifetime = 4000;
# };
# };
}

23
profiles/unbound.nix
View file

@ -4,6 +4,19 @@ let
zones = [config.homefree.system.domain] ++ config.homefree.system.additionalDomains;
preStart = ''
touch /run/unbound/include.conf
cat > /run/unbound/dynamic.zone<< EOF
\$ORIGIN ${config.homefree.system.localDomain}.
\$TTL 3600
@ IN SOA localhost. root.localhost. (
2023100101 ; serial
3600 ; refresh
1800 ; retry
604800 ; expire
86400 ; minimum
)
IN NS localhost.
EOF
# cp /run/unbound/dynamic.zone /tmp
'';
in
{
@ -222,6 +235,16 @@ in
# }
];
## Enable dynamic updates from dnsmasq
auth-zone = {
name = "\"${config.homefree.system.localDomain}\"";
master = "yes";
allow-notify = "no";
for-downstream = "no";
for-upstream = "yes";
zonefile = "\"/run/unbound/dynamic.zone\"";
};
remote-control.control-enable = true;
};
};