nixpkgs/nixos/modules/services/networking/rpcbind.nix

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{ config, lib, pkgs, ... }:
with lib;
let
netconfigFile = {
target = "netconfig";
source = pkgs.writeText "netconfig" ''
#
# The network configuration file. This file is currently only used in
# conjunction with the TI-RPC code in the libtirpc library.
#
# Entries consist of:
#
# <network_id> <semantics> <flags> <protofamily> <protoname> \
# <device> <nametoaddr_libs>
#
# The <device> and <nametoaddr_libs> fields are always empty in this
# implementation.
#
udp tpi_clts v inet udp - -
tcp tpi_cots_ord v inet tcp - -
udp6 tpi_clts v inet6 udp - -
tcp6 tpi_cots_ord v inet6 tcp - -
rawip tpi_raw - inet - - -
local tpi_cots_ord - loopback - - -
unix tpi_cots_ord - loopback - - -
'';
};
in
{
###### interface
options = {
services.rpcbind = {
enable = mkOption {
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type = types.bool;
default = false;
description = ''
Whether to enable `rpcbind', an ONC RPC directory service
notably used by NFS and NIS, and which can be queried
using the rpcinfo(1) command. `rpcbind` is a replacement for
`portmap`.
'';
};
};
};
###### implementation
config = mkIf config.services.rpcbind.enable {
environment.systemPackages = [ pkgs.rpcbind ];
environment.etc = [ netconfigFile ];
systemd.services.rpcbind =
{ description = "ONC RPC Directory Service";
wantedBy = [ "multi-user.target" ];
requires = [ "basic.target" ];
after = [ "basic.target" ];
unitConfig.DefaultDependencies = false; # don't stop during shutdown
serviceConfig.Type = "forking";
serviceConfig.ExecStart = "@${pkgs.rpcbind}/bin/rpcbind rpcbind";
};
};
}