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`ocserv` is a VPN server which follows the openconnect protocol (https://github.com/openconnect/protocol). The packaging is slightly inspired by the AUR version (https://aur.archlinux.org/packages/ocserv/). This patch initializes the package written in C, the man pages and a module for a simple systemd unit to run the VPN server. The package supports the following authentication methods for the server: * `plain` (mostly username/password) * `pam` The third method (`radius`) is currently not supported since `nixpkgs` misses a packaged client. The module can be used like this: ``` nix { services.ocserv = { enable = true; config = '' ... ''; }; } ``` The option `services.ocserv.config` is required on purpose to ensure that nobody just enables the service and experiences unexpected side-effects on the system. For a full reference, please refer to the man pages, the online docs or the example value. The docs recommend to simply use `nobody` as user, so no extra user has been added to the internal user list. Instead a configuration like this can be used: ``` run-as-user = nobody run-as-group = nogroup ``` /cc @tenten8401 Fixes #42594
100 lines
2.9 KiB
Nix
100 lines
2.9 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.ocserv;
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in
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{
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options.services.ocserv = {
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enable = mkEnableOption "ocserv";
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config = mkOption {
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type = types.lines;
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description = ''
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Configuration content to start an OCServ server.
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For a full configuration reference,please refer to the online documentation
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(https://ocserv.gitlab.io/www/manual.html), the openconnect
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recipes (https://github.com/openconnect/recipes) or `man ocserv`.
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'';
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example = ''
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# configuration examples from $out/doc without explanatory comments.
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# for a full reference please look at the installed man pages.
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auth = "plain[passwd=./sample.passwd]"
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tcp-port = 443
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udp-port = 443
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run-as-user = nobody
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run-as-group = nogroup
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socket-file = /var/run/ocserv-socket
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server-cert = certs/server-cert.pem
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server-key = certs/server-key.pem
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keepalive = 32400
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dpd = 90
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mobile-dpd = 1800
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switch-to-tcp-timeout = 25
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try-mtu-discovery = false
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cert-user-oid = 0.9.2342.19200300.100.1.1
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tls-priorities = "NORMAL:%SERVER_PRECEDENCE:%COMPAT:-VERS-SSL3.0"
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auth-timeout = 240
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min-reauth-time = 300
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max-ban-score = 80
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ban-reset-time = 1200
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cookie-timeout = 300
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deny-roaming = false
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rekey-time = 172800
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rekey-method = ssl
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use-occtl = true
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pid-file = /var/run/ocserv.pid
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device = vpns
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predictable-ips = true
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default-domain = example.com
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ipv4-network = 192.168.1.0
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ipv4-netmask = 255.255.255.0
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dns = 192.168.1.2
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ping-leases = false
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route = 10.10.10.0/255.255.255.0
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route = 192.168.0.0/255.255.0.0
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no-route = 192.168.5.0/255.255.255.0
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cisco-client-compat = true
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dtls-legacy = true
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[vhost:www.example.com]
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auth = "certificate"
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ca-cert = certs/ca.pem
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server-cert = certs/server-cert-secp521r1.pem
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server-key = cersts/certs/server-key-secp521r1.pem
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ipv4-network = 192.168.2.0
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ipv4-netmask = 255.255.255.0
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cert-user-oid = 0.9.2342.19200300.100.1.1
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'';
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};
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};
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config = mkIf cfg.enable {
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environment.systemPackages = [ pkgs.ocserv ];
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environment.etc."ocserv/ocserv.conf".text = cfg.config;
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security.pam.services.ocserv = {};
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systemd.services.ocserv = {
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description = "OpenConnect SSL VPN server";
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documentation = [ "man:ocserv(8)" ];
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after = [ "dbus.service" "network-online.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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PrivateTmp = true;
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PIDFile = "/var/run/ocserv.pid";
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ExecStart = "${pkgs.ocserv}/bin/ocserv --foreground --pid-file /var/run/ocesrv.pid --config /etc/ocserv/ocserv.conf";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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};
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};
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};
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}
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