nixpkgs/nixos/modules/services/networking/i2pd.nix
2016-12-30 15:14:05 +01:00

452 lines
12 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.i2pd;
homeDir = "/var/lib/i2pd";
extip = "EXTIP=\$(${pkgs.curl.bin}/bin/curl -sf \"http://jsonip.com\" | ${pkgs.gawk}/bin/awk -F'\"' '{print $4}')";
toYesNo = b: if b then "true" else "false";
mkEndpointOpt = name: addr: port: {
enable = mkEnableOption name;
name = mkOption {
type = types.str;
default = name;
description = "The endpoint name.";
};
address = mkOption {
type = types.str;
default = addr;
description = "Bind address for ${name} endpoint. Default: " + addr;
};
port = mkOption {
type = types.int;
default = port;
description = "Bind port for ${name} endoint. Default: " + toString port;
};
};
mkKeyedEndpointOpt = name: addr: port: keyFile:
(mkEndpointOpt name addr port) // {
keys = mkOption {
type = types.str;
default = "";
description = ''
File to persist ${lib.toUpper name} keys.
'';
};
};
commonTunOpts = let
i2cpOpts = {
length = mkOption {
type = types.int;
description = "Guaranteed minimum hops.";
default = 3;
};
quantity = mkOption {
type = types.int;
description = "Number of simultaneous tunnels.";
default = 5;
};
};
in name: {
outbound = i2cpOpts;
inbound = i2cpOpts;
crypto.tagsToSend = mkOption {
type = types.int;
description = "Number of ElGamal/AES tags to send.";
default = 40;
};
destination = mkOption {
type = types.str;
description = "Remote endpoint, I2P hostname or b32.i2p address.";
};
keys = mkOption {
type = types.str;
default = name + "-keys.dat";
description = "Keyset used for tunnel identity.";
};
} // mkEndpointOpt name "127.0.0.1" 0;
i2pdConf = pkgs.writeText "i2pd.conf"
''
ipv4 = ${toYesNo cfg.enableIPv4}
ipv6 = ${toYesNo cfg.enableIPv6}
notransit = ${toYesNo cfg.notransit}
floodfill = ${toYesNo cfg.floodfill}
netid = ${toString cfg.netid}
${if isNull cfg.bandwidth then "" else "bandwidth = ${toString cfg.bandwidth}" }
${if isNull cfg.port then "" else "port = ${toString cfg.port}"}
[limits]
transittunnels = ${toString cfg.limits.transittunnels}
[upnp]
enabled = ${toYesNo cfg.upnp.enable}
name = ${cfg.upnp.name}
[precomputation]
elgamal = ${toYesNo cfg.precomputation.elgamal}
[reseed]
verify = ${toYesNo cfg.reseed.verify}
file = ${cfg.reseed.file}
urls = ${builtins.concatStringsSep "," cfg.reseed.urls}
[addressbook]
defaulturl = ${cfg.addressbook.defaulturl}
subscriptions = ${builtins.concatStringsSep "," cfg.addressbook.subscriptions}
${flip concatMapStrings
(collect (proto: proto ? port && proto ? address && proto ? name) cfg.proto)
(proto: let portStr = toString proto.port; in
''
[${proto.name}]
enabled = ${toYesNo proto.enable}
address = ${proto.address}
port = ${toString proto.port}
${if proto ? keys then "keys = ${proto.keys}" else ""}
${if proto ? auth then "auth = ${toYesNo proto.auth}" else ""}
${if proto ? user then "user = ${proto.user}" else ""}
${if proto ? pass then "pass = ${proto.pass}" else ""}
${if proto ? outproxy then "outproxy = ${proto.outproxy}" else ""}
${if proto ? outproxyPort then "outproxyport = ${toString proto.outproxyPort}" else ""}
'')
}
'';
i2pdTunnelConf = pkgs.writeText "i2pd-tunnels.conf" ''
${flip concatMapStrings
(collect (tun: tun ? port && tun ? destination) cfg.outTunnels)
(tun: let portStr = toString tun.port; in ''
[${tun.name}]
type = client
destination = ${tun.destination}
keys = ${tun.keys}
address = ${tun.address}
port = ${toString tun.port}
inbound.length = ${toString tun.inbound.length}
outbound.length = ${toString tun.outbound.length}
inbound.quantity = ${toString tun.inbound.quantity}
outbound.quantity = ${toString tun.outbound.quantity}
crypto.tagsToSend = ${toString tun.crypto.tagsToSend}
'')
}
${flip concatMapStrings
(collect (tun: tun ? port && tun ? host) cfg.inTunnels)
(tun: let portStr = toString tun.port; in ''
[${tun.name}]
type = server
destination = ${tun.destination}
keys = ${tun.keys}
host = ${tun.address}
port = ${tun.port}
inport = ${tun.inPort}
accesslist = ${builtins.concatStringsSep "," tun.accessList}
'')
}
'';
i2pdSh = pkgs.writeScriptBin "i2pd" ''
#!/bin/sh
${if isNull cfg.extIp then extip else ""}
${pkgs.i2pd}/bin/i2pd \
--host=${if isNull cfg.extIp then "$EXTIP" else cfg.extIp} \
--conf=${i2pdConf} \
--tunconf=${i2pdTunnelConf}
'';
in
{
###### interface
options = {
services.i2pd = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Enables I2Pd as a running service upon activation.
Please read http://i2pd.readthedocs.io/en/latest/ for further
configuration help.
'';
};
extIp = mkOption {
type = with types; nullOr str;
default = null;
description = ''
Your external IP.
'';
};
notransit = mkOption {
type = types.bool;
default = false;
description = ''
Tells the router to not accept transit tunnels during startup.
'';
};
floodfill = mkOption {
type = types.bool;
default = false;
description = ''
If the router is declared to be unreachable and needs introduction nodes.
'';
};
netid = mkOption {
type = types.int;
default = 2;
description = ''
I2P overlay netid.
'';
};
bandwidth = mkOption {
type = with types; nullOr int;
default = null;
description = ''
Set a router bandwidth limit integer in kbps or letters: L (32), O (256), P (2048), X (>9000)
'';
};
port = mkOption {
type = with types; nullOr int;
default = null;
description = ''
I2P listen port. If no one is given the router will pick between 9111 and 30777.
'';
};
enableIPv4 = mkOption {
type = types.bool;
default = true;
description = ''
Enables IPv4 connectivity. Enabled by default.
'';
};
enableIPv6 = mkOption {
type = types.bool;
default = false;
description = ''
Enables IPv6 connectivity. Disabled by default.
'';
};
upnp = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Enables UPnP.
'';
};
name = mkOption {
type = types.str;
default = "I2Pd";
description = ''
Name i2pd appears in UPnP forwardings list.
'';
};
};
precomputation.elgamal = mkOption {
type = types.bool;
default = false;
description = ''
Use ElGamal precomputated tables.
'';
};
reseed = {
verify = mkOption {
type = types.bool;
default = false;
description = ''
Request SU3 signature verification
'';
};
file = mkOption {
type = types.str;
default = "";
description = ''
Full path to SU3 file to reseed from
'';
};
urls = mkOption {
type = with types; listOf str;
default = [
"https://reseed.i2p-project.de/"
"https://i2p.mooo.com/netDb/"
"https://netdb.i2p2.no/"
"https://us.reseed.i2p2.no:444/"
"https://uk.reseed.i2p2.no:444/"
"https://i2p.manas.ca:8443/"
];
description = ''
Reseed URLs
'';
};
};
addressbook = {
defaulturl = mkOption {
type = types.str;
default = "http://joajgazyztfssty4w2on5oaqksz6tqoxbduy553y34mf4byv6gpq.b32.i2p/export/alive-hosts.txt";
description = ''
AddressBook subscription URL for initial setup
'';
};
subscriptions = mkOption {
type = with types; listOf str;
default = [
"http://inr.i2p/export/alive-hosts.txt"
"http://i2p-projekt.i2p/hosts.txt"
"http://stats.i2p/cgi-bin/newhosts.txt"
];
description = ''
AddressBook subscription URLs
'';
};
};
limits.transittunnels = mkOption {
type = types.int;
default = 2500;
description = ''
Maximum number of active transit sessions
'';
};
proto.http = (mkEndpointOpt "http" "127.0.0.1" 7070) // {
auth = mkOption {
type = types.bool;
default = false;
description = ''
Enable authentication for webconsole.
'';
};
user = mkOption {
type = types.str;
default = "i2pd";
description = ''
Username for webconsole access
'';
};
pass = mkOption {
type = types.str;
default = "i2pd";
description = ''
Password for webconsole access.
'';
};
};
proto.httpProxy = mkKeyedEndpointOpt "httpproxy" "127.0.0.1" 4446 "";
proto.socksProxy = (mkKeyedEndpointOpt "socksproxy" "127.0.0.1" 4447 "")
// {
outproxy = mkOption {
type = types.str;
default = "127.0.0.1";
description = "Upstream outproxy bind address.";
};
outproxyPort = mkOption {
type = types.int;
default = 4444;
description = "Upstream outproxy bind port.";
};
};
proto.sam = mkEndpointOpt "sam" "127.0.0.1" 7656;
proto.bob = mkEndpointOpt "bob" "127.0.0.1" 2827;
proto.i2cp = mkEndpointOpt "i2cp" "127.0.0.1" 7654;
proto.i2pControl = mkEndpointOpt "i2pcontrol" "127.0.0.1" 7650;
outTunnels = mkOption {
default = {};
type = with types; loaOf (submodule (
{ name, config, ... }: {
options = commonTunOpts name;
config = {
name = mkDefault name;
};
}
));
description = ''
Connect to someone as a client and establish a local accept endpoint
'';
};
inTunnels = mkOption {
default = {};
type = with types; loaOf (submodule (
{ name, config, ... }: {
options = {
inPort = mkOption {
type = types.int;
default = 0;
description = "Service port. Default to the tunnel's listen port.";
};
accessList = mkOption {
type = with types; listOf str;
default = [];
description = "I2P nodes that are allowed to connect to this service.";
};
} // commonTunOpts name;
config = {
name = mkDefault name;
};
}
));
description = ''
Serve something on I2P network at port and delegate requests to address inPort.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
users.extraUsers.i2pd = {
group = "i2pd";
description = "I2Pd User";
home = homeDir;
createHome = true;
uid = config.ids.uids.i2pd;
};
users.extraGroups.i2pd.gid = config.ids.gids.i2pd;
systemd.services.i2pd = {
description = "Minimal I2P router";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig =
{
User = "i2pd";
WorkingDirectory = homeDir;
Restart = "on-abort";
ExecStart = "${i2pdSh}/bin/i2pd";
};
};
};
}