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|
{ config, pkgs, ... }:
with pkgs.lib;
let
cfg = config.services.gnunet;
configFile = with cfg; pkgs.writeText "gnunetd.conf"
''
[PATHS]
GNUNETD_HOME = ${home}
[GNUNETD]
HOSTLISTURL = ${concatStringsSep " " hostLists}
APPLICATIONS = ${concatStringsSep " " applications}
TRANSPORTS = ${concatStringsSep " " transports}
[LOAD]
MAXNETDOWNBPSTOTAL = ${toString load.maxNetDownBandwidth}
MAXNETUPBPSTOTAL = ${toString load.maxNetUpBandwidth}
HARDUPLIMIT = ${toString load.hardNetUpBandwidth}
MAXCPULOAD = ${toString load.maxCPULoad}
INTERFACES = ${concatStringsSep " " load.interfaces}
[FS]
QUOTA = ${toString fileSharing.quota}
ACTIVEMIGRATION = ${if fileSharing.activeMigration then "YES" else "NO"}
[UDP]
PORT = ${toString udp.port}
[TCP]
PORT = ${toString tcp.port}
[MODULES]
sqstore = sqstore_sqlite
dstore = dstore_sqlite
topology = topology_default
${extraOptions}
'';
in
{
###### interface
options = {
services.gnunet = {
enable = mkOption {
default = false;
description = ''
Whether to run the GNUnet daemon. GNUnet is GNU's anonymous
peer-to-peer communication and file sharing framework.
'';
};
home = mkOption {
default = "/var/lib/gnunet";
description = ''
Directory where the GNUnet daemon will store its data.
'';
};
debug = mkOption {
default = false;
description = ''
When true, run in debug mode; gnunetd will not daemonize and
error messages will be written to stderr instead of a
logfile.
'';
};
logLevel = mkOption {
default = "ERROR";
example = "INFO";
description = ''
Log level of the deamon (see `gnunetd(1)' for details).
'';
};
hostLists = mkOption {
default = [
"http://gnunet.org/hostlist.php"
"http://gnunet.mine.nu:8081/hostlist"
"http://vserver1236.vserver-on.de/hostlist-074"
];
description = ''
URLs of host lists.
'';
};
applications = mkOption {
default = [ "advertising" "getoption" "fs" "stats" "traffic" ];
example = [ "chat" "fs" ];
description = ''
List of GNUnet applications supported by the daemon. Note that
`fs', which means "file sharing", is probably the one you want.
'';
};
transports = mkOption {
default = [ "udp" "tcp" "http" "nat" ];
example = [ "smtp" "http" ];
description = ''
List of transport methods used by the server.
'';
};
fileSharing = {
quota = mkOption {
default = 1024;
description = ''
Maximum file system usage (in MiB) for file sharing.
'';
};
activeMigration = mkOption {
default = false;
description = ''
Whether to allow active migration of content originating
from other nodes.
'';
};
};
udp = {
port = mkOption {
default = 2086; # assigned by IANA
description = ''
The UDP port for use by GNUnet.
'';
};
};
tcp = {
port = mkOption {
default = 2086; # assigned by IANA
description = ''
The TCP port for use by GNUnet.
'';
};
};
load = {
maxNetDownBandwidth = mkOption {
default = 50000;
description = ''
Maximum bandwidth usage (in bits per second) for GNUnet
when downloading data.
'';
};
maxNetUpBandwidth = mkOption {
default = 50000;
description = ''
Maximum bandwidth usage (in bits per second) for GNUnet
when downloading data.
'';
};
hardNetUpBandwidth = mkOption {
default = 0;
description = ''
Hard bandwidth limit (in bits per second) when uploading
data.
'';
};
maxCPULoad = mkOption {
default = 100;
description = ''
Maximum CPU load (percentage) authorized for the GNUnet
daemon.
'';
};
interfaces = mkOption {
default = [ "eth0" ];
example = [ "wlan0" "eth1" ];
description = ''
List of network interfaces to use.
'';
};
};
extraOptions = mkOption {
default = "";
example = ''
[NETWORK]
INTERFACE = eth3
'';
description = ''
Additional options that will be copied verbatim in `gnunetd.conf'.
See `gnunetd.conf(5)' for details.
'';
};
};
};
###### implementation
config = mkIf config.services.gnunet.enable {
users.extraUsers = singleton
{ name = "gnunetd";
uid = config.ids.uids.gnunetd;
description = "GNUnet Daemon User";
home = "/var/empty";
};
# The user tools that talk to `gnunetd' should come from the same source,
# so install them globally.
environment.systemPackages = [ pkgs.gnunet ];
environment.etc = [
# Tools such as `gnunet-transport-check' expect /etc/gnunetd.conf.
{ source = configFile;
target = "gnunetd.conf";
}
];
jobs.gnunetd =
{ description = "The GNUnet Daemon";
startOn = "started network-interfaces";
stopOn = "stopping network-interfaces";
preStart =
''
test -d "${cfg.home}" || \
( mkdir -m 755 -p "${cfg.home}" && chown -R gnunetd:users "${cfg.home}")
'';
exec =
''
${pkgs.gnunet}/bin/gnunetd \
${if cfg.debug then "--debug" else "" } \
--user="gnunetd" \
--config="${configFile}" \
--log="${cfg.logLevel}"
'';
};
};
}
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