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nixos/network-interfaces: add support for static ipv6 addresses

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This commit is contained in:
Jaka Hudoklin 2013-11-07 11:32:15 +01:00
parent 9c1982cd68
commit dd2dc699fa
1 changed files with 43 additions and 2 deletions
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45
nixos/modules/tasks/network-interfaces.nix
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@ -49,6 +49,26 @@ let
'';
};
ipv6Address = mkOption {
default = null;
example = "2001:1470:fffd:2098::e006";
type = types.nullOr types.string;
description = ''
IPv6 address of the interface. Leave empty to configure the
interface using NDP.
'';
};
ipv6prefixLength = mkOption {
default = 64;
example = 64;
type = types.int;
description = ''
Subnet mask of the interface, specified as the number of
bits in the prefix (<literal>64</literal>).
'';
};
macAddress = mkOption {
default = null;
example = "00:11:22:33:44:55";
@ -322,6 +342,7 @@ in
(let mask =
if i.prefixLength != null then toString i.prefixLength else
if i.subnetMask != "" then i.subnetMask else "32";
staticIPv6 = cfg.enableIPv6 && i.ipv6Address != null;
in
{ description = "Configuration of ${i.name}";
wantedBy = [ "network-interfaces.target" ];
@ -350,11 +371,31 @@ in
echo "configuring interface..."
ip -4 addr flush dev "${i.name}"
ip -4 addr add "${i.ipAddress}/${mask}" dev "${i.name}"
restart_network_setup=true
else
echo "skipping configuring interface"
fi
''
+ optionalString (staticIPv6)
''
# Only do a flush/add if it's necessary. This is
# useful when the Nix store is accessed via this
# interface (e.g. in a QEMU VM test).
if ! ip -6 -o a show dev "${i.name}" | grep "${i.ipv6Address}/${toString i.ipv6prefixLength}"; then
echo "configuring interface..."
ip -6 addr flush dev "${i.name}"
ip -6 addr add "${i.ipv6Address}/${toString i.ipv6prefixLength}" dev "${i.name}"
restart_network_setup=true
else
echo "skipping configuring interface"
fi
''
+ optionalString (i.ipAddress != null || staticIPv6)
''
if [ restart_network_setup = true ]; then
# Ensure that the default gateway remains set.
# (Flushing this interface may have removed it.)
${config.systemd.package}/bin/systemctl try-restart --no-block network-setup.service
else
echo "skipping configuring interface"
fi
${config.systemd.package}/bin/systemctl start ip-up.target
''