123 lines
3.5 KiB
Nix
123 lines
3.5 KiB
Nix
|
{
|
||
|
|
config,
|
||
|
|
lib,
|
||
|
|
pkgs,
|
||
|
|
mylib,
|
||
|
|
...
|
||
|
|
}:
|
||
|
|
with lib;
|
||
|
|
let
|
||
|
|
allNetns = config.networking.netns;
|
||
|
|
in
|
||
|
|
{
|
||
|
|
options.networking.netns = mkOption {
|
||
|
|
type = types.attrsOf (
|
||
|
|
types.submodule (
|
||
|
|
{ ... }:
|
||
|
|
{
|
||
|
|
options.forwardPorts = mkOption {
|
||
|
|
type = types.listOf (
|
||
|
|
types.submodule {
|
||
|
|
options = {
|
||
|
|
protocol = mkOption {
|
||
|
|
type = types.enum [
|
||
|
|
"tcp"
|
||
|
|
"udp"
|
||
|
|
];
|
||
|
|
default = "tcp";
|
||
|
|
description = ''
|
||
|
|
The protocol specifier for port forwarding between network namespaces.
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
netns = mkOption {
|
||
|
|
type = types.str;
|
||
|
|
default = "default";
|
||
|
|
description = ''
|
||
|
|
The network namespace to forward ports from.
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
source = mkOption {
|
||
|
|
type = types.str;
|
||
|
|
description = ''
|
||
|
|
The source endpoint in the specified network namespace to forward.
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
target = mkOption {
|
||
|
|
type = types.str;
|
||
|
|
description = ''
|
||
|
|
The target endpoint in the current network namespace to listen on.
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}
|
||
|
|
);
|
||
|
|
default = [ ];
|
||
|
|
description = ''
|
||
|
|
List of forwarded ports from another network namespace to this
|
||
|
|
network namespace.
|
||
|
|
'';
|
||
|
|
};
|
||
|
|
}
|
||
|
|
)
|
||
|
|
);
|
||
|
|
};
|
||
|
|
|
||
|
|
config = {
|
||
|
|
systemd.services = listToAttrs (
|
||
|
|
flatten (
|
||
|
|
mapAttrsToList (
|
||
|
|
name: cfg:
|
||
|
|
(imap (
|
||
|
|
index: fp:
|
||
|
|
let
|
||
|
|
inherit (fp)
|
||
|
|
protocol
|
||
|
|
source
|
||
|
|
target
|
||
|
|
netns
|
||
|
|
;
|
||
|
|
netnsPath = config.networking.netns.${netns}.netnsPath;
|
||
|
|
serviceDeps = map (ns: "netns-${ns}.service") (
|
||
|
|
filter (ns: ns != "default") [
|
||
|
|
name
|
||
|
|
netns
|
||
|
|
]
|
||
|
|
);
|
||
|
|
in
|
||
|
|
nameValuePair "netns-${name}-port-forward-${toString index}" {
|
||
|
|
serviceConfig =
|
||
|
|
mylib.misc.serviceHardened
|
||
|
|
// cfg.serviceConfig
|
||
|
|
// {
|
||
|
|
Type = "simple";
|
||
|
|
Restart = "on-failure";
|
||
|
|
RestartSec = 5;
|
||
|
|
DynamicUser = true;
|
||
|
|
User = "${name}-port-forward-${toString index}";
|
||
|
|
ExecStart = "${pkgs.netns-proxy}/bin/netns-proxy ${netnsPath} ${source} -b ${target} -p ${protocol} -v";
|
||
|
|
ProtectProc = false;
|
||
|
|
RestrictNamespaces = "net";
|
||
|
|
AmbientCapabilities = [
|
||
|
|
"CAP_SYS_ADMIN"
|
||
|
|
"CAP_SYS_PTRACE"
|
||
|
|
];
|
||
|
|
CapabilityBoundingSet = [
|
||
|
|
"CAP_SYS_ADMIN"
|
||
|
|
"CAP_SYS_PTRACE"
|
||
|
|
];
|
||
|
|
};
|
||
|
|
after = [
|
||
|
|
"network.target"
|
||
|
|
] ++ serviceDeps;
|
||
|
|
partOf = serviceDeps;
|
||
|
|
wantedBy = [
|
||
|
|
"multi-user.target"
|
||
|
|
] ++ serviceDeps;
|
||
|
|
}
|
||
|
|
) cfg.forwardPorts)
|
||
|
|
) allNetns
|
||
|
|
)
|
||
|
|
);
|
||
|
|
};
|
||
|
|
}
|