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nixos/networking/nat: add option for protocol

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This commit adds an option to allow udp port forwarding (see #24894).
This commit is contained in:
Phil 2017-08-04 16:25:28 +02:00 committed by Robin Gloster
parent e84c717df6
commit 4f277bd920
1 changed files with 10 additions and 3 deletions
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13
nixos/modules/services/networking/nat.nix
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@ -48,7 +48,7 @@ let
# NAT from external ports to internal ports.
${concatMapStrings (fwd: ''
iptables -w -t nat -A nixos-nat-pre \
-i ${cfg.externalInterface} -p tcp \
-i ${cfg.externalInterface} -p ${fwd.proto} \
--dport ${builtins.toString fwd.sourcePort} \
-j DNAT --to-destination ${fwd.destination}
'') cfg.forwardPorts}
@ -133,12 +133,19 @@ in
destination = mkOption {
type = types.str;
example = "10.0.0.1:80";
description = "Forward tcp connection to destination ip:port";
description = "Forward connection to destination ip:port";
};
proto = mkOption {
type = types.str;
default = "tcp";
example = "udp";
description = "Protocol of forwarded connection";
};
};
});
default = [];
example = [ { sourcePort = 8080; destination = "10.0.0.1:80"; } ];
example = [ { sourcePort = 8080; destination = "10.0.0.1:80"; proto = "tcp"; } ];
description =
''
List of forwarded ports from the external interface to