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guix/gnu/services/networking.scm
Tomas Volf 82f9e5ac97
services: nftables: Tighten the default rules. 
Packets for local host IP ranges should be coming only over lo.  If that is
not the case, we should drop them.  Use iif for the check instead of iifname,
lo is guaranteed to exists, and iif is faster.

* gnu/services/networking.scm (%default-nftables-ruleset): Tighten the rules.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2023-10-20 00:33:26 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013-2023 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2016, 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2016 John Darrington <jmd@gnu.org>
;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
;;; Copyright © 2017, 2018 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
;;; Copyright © 2019 Florian Pelz <pelzflorian@pelzflorian.de>
;;; Copyright © 2019, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2019 Sou Bunnbu <iyzsong@member.fsf.org>
;;; Copyright © 2019 Alex Griffin <a@ajgrf.com>
;;; Copyright © 2020 Brice Waegeneire <brice@waegenei.re>
;;; Copyright © 2021 Oleg Pykhalov <go.wigust@gmail.com>
;;; Copyright © 2021 Christine Lemmer-Webber <cwebber@dustycloud.org>
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;; Copyright © 2021 Guillaume Le Vaillant <glv@posteo.net>
;;; Copyright © 2022, 2023 Andrew Tropin <andrew@trop.in>
;;; Copyright © 2023 Declan Tsien <declantsien@riseup.net>
;;; Copyright © 2023 Bruno Victal <mirai@makinata.eu>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services networking)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services configuration)
#:use-module (gnu services linux)
#:use-module (gnu services shepherd)
#:use-module (gnu services dbus)
#:use-module (gnu services admin)
#:use-module (gnu system shadow)
#:use-module (gnu system pam)
#:use-module ((gnu system file-systems) #:select (file-system-mapping))
#:use-module (gnu packages admin)
#:use-module (gnu packages base)
#:use-module (gnu packages bash)
#:use-module (gnu packages cluster)
#:use-module (gnu packages connman)
#:use-module (gnu packages freedesktop)
#:use-module (gnu packages linux)
#:use-module (gnu packages tor)
#:use-module (gnu packages usb-modeswitch)
#:use-module (gnu packages messaging)
#:use-module (gnu packages networking)
#:use-module (gnu packages ntp)
#:use-module (gnu packages gnome)
#:use-module (gnu packages ipfs)
#:use-module (gnu build linux-container)
#:autoload (guix least-authority) (least-authority-wrapper)
#:use-module (guix gexp)
#:use-module (guix records)
#:use-module (guix modules)
#:use-module (guix packages)
#:use-module (guix deprecation)
#:use-module (guix diagnostics)
#:autoload (guix ui) (display-hint)
#:use-module (guix i18n)
#:use-module (rnrs enums)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-43)
#:use-module (ice-9 match)
#:use-module (json)
#:re-export (static-networking-service
static-networking-service-type)
#:export (%facebook-host-aliases ;deprecated
block-facebook-hosts-service-type
dhcp-client-service-type
dhcp-client-configuration
dhcp-client-configuration?
dhcp-client-configuration-package
dhcp-client-configuration-interfaces
dhcp-client-configuration-shepherd-provision
dhcp-client-configuration-shepherd-requirement
dhcpd-service-type
dhcpd-configuration
dhcpd-configuration?
dhcpd-configuration-package
dhcpd-configuration-config-file
dhcpd-configuration-version
dhcpd-configuration-run-directory
dhcpd-configuration-lease-file
dhcpd-configuration-pid-file
dhcpd-configuration-interfaces
ntp-configuration
ntp-configuration?
ntp-configuration-ntp
ntp-configuration-servers
ntp-allow-large-adjustment?
%ntp-servers
ntp-server
ntp-server-type
ntp-server-address
ntp-server-options
ntp-service-type
%openntpd-servers
openntpd-configuration
openntpd-configuration?
openntpd-service-type
inetd-configuration
inetd-configuration?
inetd-configuration-program
inetd-configuration-entries
inetd-entry
inetd-entry?
inetd-entry-node
inetd-entry-name
inetd-entry-socket-type
inetd-entry-protocol
inetd-entry-wait?
inetd-entry-user
inetd-entry-program
inetd-entry-arguments
inetd-service-type
opendht-configuration
opendht-configuration-peer-discovery?
opendht-configuration-verbose?
opendht-configuration-bootstrap-host
opendht-configuration-port
opendht-configuration-proxy-server-port
opendht-configuration-proxy-server-port-tls
opendht-configuration->command-line-arguments
opendht-shepherd-service
opendht-service-type
tor-configuration
tor-configuration?
tor-configuration-tor
tor-configuration-config-file
tor-configuration-hidden-services
tor-configuration-socks-socket-type
tor-configuration-control-socket-path
tor-onion-service-configuration
tor-onion-service-configuration?
tor-onion-service-configuration-name
tor-onion-service-configuration-mapping
tor-hidden-service ; deprecated
tor-service-type
network-manager-configuration
network-manager-configuration?
network-manager-configuration-shepherd-requirement
network-manager-configuration-dns
network-manager-configuration-vpn-plugins
network-manager-service-type
connman-configuration
connman-configuration?
connman-configuration-connman
connman-configuration-shepherd-requirement
connman-configuration-disable-vpn?
connman-configuration-iwd?
connman-service-type
modem-manager-configuration
modem-manager-configuration?
modem-manager-service-type
usb-modeswitch-configuration
usb-modeswitch-configuration?
usb-modeswitch-configuration-usb-modeswitch
usb-modeswitch-configuration-usb-modeswitch-data
usb-modeswitch-service-type
wpa-supplicant-configuration
wpa-supplicant-configuration?
wpa-supplicant-configuration-wpa-supplicant
wpa-supplicant-configuration-requirement
wpa-supplicant-configuration-pid-file
wpa-supplicant-configuration-dbus?
wpa-supplicant-configuration-interface
wpa-supplicant-configuration-config-file
wpa-supplicant-configuration-extra-options
wpa-supplicant-service-type
hostapd-configuration
hostapd-configuration?
hostapd-configuration-package
hostapd-configuration-interface
hostapd-configuration-ssid
hostapd-configuration-broadcast-ssid?
hostapd-configuration-channel
hostapd-configuration-driver
hostapd-service-type
simulated-wifi-service-type
openvswitch-service-type
openvswitch-configuration
iptables-configuration
iptables-configuration?
iptables-configuration-iptables
iptables-configuration-ipv4-rules
iptables-configuration-ipv6-rules
iptables-service-type
nftables-service-type
nftables-configuration
nftables-configuration?
nftables-configuration-package
nftables-configuration-ruleset
%default-nftables-ruleset
pagekite-service-type
pagekite-configuration
pagekite-configuration?
pagekite-configuration-package
pagekite-configuration-kitename
pagekite-configuration-kitesecret
pagekite-configuration-frontend
pagekite-configuration-kites
pagekite-configuration-extra-file
yggdrasil-service-type
yggdrasil-configuration
yggdrasil-configuration?
yggdrasil-configuration-autoconf?
yggdrasil-configuration-config-file
yggdrasil-configuration-log-level
yggdrasil-configuration-log-to
yggdrasil-configuration-json-config
yggdrasil-configuration-package
ipfs-service-type
ipfs-configuration
ipfs-configuration?
ipfs-configuration-package
ipfs-configuration-gateway
ipfs-configuration-api
keepalived-configuration
keepalived-configuration?
keepalived-service-type))
;;; Commentary:
;;;
;;; Networking services.
;;;
;;; Code:
(define facebook-host-aliases
;; This is the list of known Facebook hosts to be added to /etc/hosts if you
;; are to block it.
(let ((domains '("facebook.com" "www.facebook.com"
"login.facebook.com" "www.login.facebook.com"
"fbcdn.net" "www.fbcdn.net" "fbcdn.com" "www.fbcdn.com"
"static.ak.fbcdn.net" "static.ak.connect.facebook.com"
"connect.facebook.net" "www.connect.facebook.net"
"apps.facebook.com")))
(append-map (lambda (name)
(map (lambda (addr)
(host addr name))
(list "127.0.0.1" "::1"))) domains)))
(define-deprecated %facebook-host-aliases
block-facebook-hosts-service-type
(string-join
(map (lambda (x)
(string-append (host-address x) "\t"
(host-canonical-name x) "\n"))
facebook-host-aliases)))
(define block-facebook-hosts-service-type
(service-type
(name 'block-facebook-hosts)
(extensions
(list (service-extension hosts-service-type
(const facebook-host-aliases))))
(default-value #f)
(description "Add a list of known Facebook hosts to @file{/etc/hosts}")))
(define-record-type* <dhcp-client-configuration>
dhcp-client-configuration make-dhcp-client-configuration
dhcp-client-configuration?
(package dhcp-client-configuration-package ;file-like
(default isc-dhcp))
(shepherd-requirement dhcp-client-configuration-shepherd-requirement
(default '()))
(shepherd-provision dhcp-client-configuration-shepherd-provision
(default '(networking)))
(interfaces dhcp-client-configuration-interfaces
(default 'all))) ;'all | list of strings
(define dhcp-client-shepherd-service
(match-lambda
((? dhcp-client-configuration? config)
(let ((package (dhcp-client-configuration-package config))
(requirement (dhcp-client-configuration-shepherd-requirement config))
(provision (dhcp-client-configuration-shepherd-provision config))
(interfaces (dhcp-client-configuration-interfaces config))
(pid-file "/var/run/dhclient.pid"))
(list (shepherd-service
(documentation "Set up networking via DHCP.")
(requirement `(user-processes udev ,@requirement))
(provision provision)
;; XXX: Running with '-nw' ("no wait") avoids blocking for a minute when
;; networking is unavailable, but also means that the interface is not up
;; yet when 'start' completes. To wait for the interface to be ready, one
;; should instead monitor udev events.
(start #~(lambda _
(define dhclient
(string-append #$package "/sbin/dhclient"))
;; When invoked without any arguments, 'dhclient' discovers all
;; non-loopback interfaces *that are up*. However, the relevant
;; interfaces are typically down at this point. Thus we perform
;; our own interface discovery here.
(define valid?
(lambda (interface)
(and (arp-network-interface? interface)
(not (loopback-network-interface? interface))
;; XXX: Make sure the interfaces are up so that
;; 'dhclient' can actually send/receive over them.
;; Ignore those that cannot be activated.
(false-if-exception
(set-network-interface-up interface)))))
(define ifaces
(filter valid?
#$(match interfaces
('all
#~(all-network-interface-names))
(_
#~'#$interfaces))))
(false-if-exception (delete-file #$pid-file))
(let ((pid (fork+exec-command
;; By default dhclient uses a
;; pre-standardization implementation of
;; DDNS, which is incompatable with
;; non-ISC DHCP servers; thus, pass '-I'.
;; <https://kb.isc.org/docs/aa-01091>.
(cons* dhclient "-nw" "-I"
"-pf" #$pid-file ifaces))))
(and (zero? (cdr (waitpid pid)))
(read-pid-file #$pid-file)))))
(stop #~(make-kill-destructor))))))
(package
(warning (G_ "'dhcp-client' service now expects a \
'dhcp-client-configuration' record~%"))
(display-hint (G_ "The value associated with instances of
@code{dhcp-client-service-type} must now be a @code{dhcp-client-configuration}
record instead of a package. Please adjust your configuration accordingly."))
(dhcp-client-shepherd-service
(dhcp-client-configuration
(package package))))))
(define dhcp-client-service-type
(service-type (name 'dhcp-client)
(extensions
(list (service-extension shepherd-root-service-type
dhcp-client-shepherd-service)))
(default-value (dhcp-client-configuration))
(description "Run @command{dhcp}, a Dynamic Host Configuration
Protocol (DHCP) client, on all the non-loopback network interfaces.")))
(define-record-type* <dhcpd-configuration>
dhcpd-configuration make-dhcpd-configuration
dhcpd-configuration?
(package dhcpd-configuration-package ;file-like
(default isc-dhcp))
(config-file dhcpd-configuration-config-file ;file-like
(default #f))
(version dhcpd-configuration-version ;"4", "6", or "4o6"
(default "4"))
(run-directory dhcpd-configuration-run-directory
(default "/run/dhcpd"))
(lease-file dhcpd-configuration-lease-file
(default "/var/db/dhcpd.leases"))
(pid-file dhcpd-configuration-pid-file
(default "/run/dhcpd/dhcpd.pid"))
;; list of strings, e.g. (list "enp0s25")
(interfaces dhcpd-configuration-interfaces
(default '())))
(define (dhcpd-shepherd-service config)
(match-record config <dhcpd-configuration>
(package config-file version run-directory
lease-file pid-file interfaces)
(unless config-file
(error "Must supply a config-file"))
(list (shepherd-service
;; Allow users to easily run multiple versions simultaneously.
(provision (list (string->symbol
(string-append "dhcpv" version "-daemon"))))
(documentation (string-append "Run the DHCPv" version " daemon"))
(requirement '(networking))
(start #~(make-forkexec-constructor
'(#$(file-append package "/sbin/dhcpd")
#$(string-append "-" version)
"-lf" #$lease-file
"-pf" #$pid-file
"-cf" #$config-file
#$@interfaces)
#:pid-file #$pid-file))
(stop #~(make-kill-destructor))))))
(define (dhcpd-activation config)
(match-record config <dhcpd-configuration>
(package config-file version run-directory
lease-file pid-file interfaces)
(with-imported-modules '((guix build utils))
#~(begin
(unless (file-exists? #$run-directory)
(mkdir #$run-directory))
;; According to the DHCP manual (man dhcpd.leases), the lease
;; database must be present for dhcpd to start successfully.
(unless (file-exists? #$lease-file)
(with-output-to-file #$lease-file
(lambda _ (display ""))))
;; Validate the config.
(invoke/quiet
#$(file-append package "/sbin/dhcpd")
#$(string-append "-" version)
"-t" "-cf" #$config-file)))))
(define dhcpd-service-type
(service-type
(name 'dhcpd)
(extensions
(list (service-extension shepherd-root-service-type dhcpd-shepherd-service)
(service-extension activation-service-type dhcpd-activation)))
(description "Run a DHCP (Dynamic Host Configuration Protocol) daemon. The
daemon is responsible for allocating IP addresses to its client.")))
;;;
;;; NTP.
;;;
(define %ntp-log-rotation
(list (log-rotation
(files '("/var/log/ntpd.log")))))
(define ntp-server-types (make-enumeration
'(pool
server
peer
broadcast
manycastclient)))
(define-record-type* <ntp-server>
ntp-server make-ntp-server
ntp-server?
;; The type can be one of the symbols of the NTP-SERVER-TYPE? enumeration.
(type ntp-server-type
(default 'server))
(address ntp-server-address) ; a string
;; The list of options can contain single option names or tuples in the form
;; '(name value).
(options ntp-server-options
(default '())))
(define (ntp-server->string ntp-server)
;; Serialize the NTP server object as a string, ready to use in the NTP
;; configuration file.
(define (flatten lst)
(reverse
(let loop ((x lst)
(res '()))
(if (list? x)
(fold loop res x)
(cons (format #f "~a" x) res)))))
(match-record ntp-server <ntp-server>
(type address options)
;; XXX: It'd be neater if fields were validated at the syntax level (for
;; static ones at least). Perhaps the Guix record type could support a
;; predicate property on a field?
(unless (enum-set-member? type ntp-server-types)
(error "Invalid NTP server type" type))
(string-join (cons* (symbol->string type)
address
(flatten options)))))
(define %ntp-servers
;; Default set of NTP servers. These URLs are managed by the NTP Pool project.
;; Within Guix, Leo Famulari <leo@famulari.name> is the administrative contact
;; for this NTP pool "zone".
;; The full list of available URLs are 0.guix.pool.ntp.org,
;; 1.guix.pool.ntp.org, 2.guix.pool.ntp.org, and 3.guix.pool.ntp.org.
(list
(ntp-server
(type 'pool)
(address "0.guix.pool.ntp.org")
(options '("iburst"))))) ;as recommended in the ntpd manual
(define-record-type* <ntp-configuration>
ntp-configuration make-ntp-configuration
ntp-configuration?
(ntp ntp-configuration-ntp
(default ntp))
(servers ntp-configuration-servers ;list of <ntp-server> objects
(default %ntp-servers))
(allow-large-adjustment? ntp-allow-large-adjustment?
(default #t))) ;as recommended in the ntpd manual
(define (ntp-shepherd-service config)
(match-record config <ntp-configuration>
(ntp servers allow-large-adjustment?)
;; TODO: Add authentication support.
(define config
(string-append "driftfile /var/run/ntpd/ntp.drift\n"
(string-join (map ntp-server->string servers) "\n")
"
# Disable status queries as a workaround for CVE-2013-5211:
# <http://support.ntp.org/bin/view/Main/SecurityNotice#DRDoS_Amplification_Attack_using>.
restrict default kod nomodify notrap nopeer noquery limited
restrict -6 default kod nomodify notrap nopeer noquery limited
# Yet, allow use of the local 'ntpq'.
restrict 127.0.0.1
restrict -6 ::1
# This is required to use servers from a pool directive when using the 'nopeer'
# option by default, as documented in the 'ntp.conf' manual.
restrict source notrap nomodify noquery\n"))
(define ntpd.conf
(plain-file "ntpd.conf" config))
(list (shepherd-service
(provision '(ntpd))
(documentation "Run the Network Time Protocol (NTP) daemon.")
(requirement '(user-processes networking))
(actions (list (shepherd-configuration-action ntpd.conf)))
(start #~(make-forkexec-constructor
(list (string-append #$ntp "/bin/ntpd") "-n"
"-c" #$ntpd.conf "-u" "ntpd"
#$@(if allow-large-adjustment?
'("-g")
'()))
#:log-file "/var/log/ntpd.log"))
(stop #~(make-kill-destructor))))))
(define %ntp-accounts
(list (user-account
(name "ntpd")
(group "nogroup")
(system? #t)
(comment "NTP daemon user")
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define (ntp-service-activation config)
"Return the activation gexp for CONFIG."
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(define %user
(getpw "ntpd"))
(let ((directory "/var/run/ntpd"))
(mkdir-p directory)
(chown directory (passwd:uid %user) (passwd:gid %user))))))
(define ntp-service-type
(service-type (name 'ntp)
(extensions
(list (service-extension shepherd-root-service-type
ntp-shepherd-service)
(service-extension account-service-type
(const %ntp-accounts))
(service-extension activation-service-type
ntp-service-activation)
(service-extension rottlog-service-type
(const %ntp-log-rotation))))
(description
"Run the @command{ntpd}, the Network Time Protocol (NTP)
daemon of the @uref{http://www.ntp.org, Network Time Foundation}. The daemon
will keep the system clock synchronized with that of the given servers.")
(default-value (ntp-configuration))))
;;;
;;; OpenNTPD.
;;;
(define %openntpd-servers
(map ntp-server-address %ntp-servers))
(define-record-type* <openntpd-configuration>
openntpd-configuration make-openntpd-configuration
openntpd-configuration?
(openntpd openntpd-configuration-openntpd
(default openntpd))
(listen-on openntpd-listen-on
(default '("127.0.0.1"
"::1")))
(query-from openntpd-query-from
(default '()))
(sensor openntpd-sensor
(default '()))
(server openntpd-server
(default '()))
(servers openntpd-servers
(default %openntpd-servers))
(constraint-from openntpd-constraint-from
(default '()))
(constraints-from openntpd-constraints-from
(default '())))
(define (openntpd-configuration->string config)
(define (quote-field? name)
(member name '("constraints from")))
(match-record config <openntpd-configuration>
(listen-on query-from sensor server servers constraint-from
constraints-from)
(string-append
(string-join
(concatenate
(filter-map (lambda (field values)
(match values
(() #f) ;discard entry with filter-map
((val ...) ;validate value type
(map (lambda (value)
(if (quote-field? field)
(format #f "~a \"~a\"" field value)
(format #f "~a ~a" field value)))
values))))
;; The entry names.
'("listen on" "query from" "sensor" "server" "servers"
"constraint from" "constraints from")
;; The corresponding entry values.
(list listen-on query-from sensor server servers
constraint-from constraints-from)))
"\n")
"\n"))) ;add a trailing newline
(define (openntpd-shepherd-service config)
(let ((openntpd (openntpd-configuration-openntpd config)))
(define ntpd.conf
(plain-file "ntpd.conf" (openntpd-configuration->string config)))
(list (shepherd-service
(provision '(ntpd))
(documentation "Run the Network Time Protocol (NTP) daemon.")
(requirement '(user-processes networking))
(start #~(make-forkexec-constructor
(list (string-append #$openntpd "/sbin/ntpd")
"-f" #$ntpd.conf
"-d") ;; don't daemonize
;; When ntpd is daemonized it repeatedly tries to respawn
;; while running, leading shepherd to disable it. To
;; prevent spamming stderr, redirect output to logfile.
#:log-file "/var/log/ntpd.log"))
(stop #~(make-kill-destructor))
(actions (list (shepherd-configuration-action ntpd.conf)))))))
(define (openntpd-service-activation config)
"Return the activation gexp for CONFIG."
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(mkdir-p "/var/db")
(mkdir-p "/var/run")
(unless (file-exists? "/var/db/ntpd.drift")
(with-output-to-file "/var/db/ntpd.drift"
(lambda _
(format #t "0.0")))))))
(define openntpd-service-type
(service-type (name 'openntpd)
(extensions
(list (service-extension shepherd-root-service-type
openntpd-shepherd-service)
(service-extension account-service-type
(const %ntp-accounts))
(service-extension profile-service-type
(compose list openntpd-configuration-openntpd))
(service-extension activation-service-type
openntpd-service-activation)
(service-extension rottlog-service-type
(const %ntp-log-rotation))))
(default-value (openntpd-configuration))
(description
"Run the @command{ntpd}, the Network Time Protocol (NTP)
daemon, as implemented by @uref{http://www.openntpd.org, OpenNTPD}. The
daemon will keep the system clock synchronized with that of the given servers.")))
;;;
;;; Inetd.
;;;
(define-record-type* <inetd-configuration> inetd-configuration
make-inetd-configuration
inetd-configuration?
(program inetd-configuration-program ;file-like
(default (file-append inetutils "/libexec/inetd")))
(entries inetd-configuration-entries ;list of <inetd-entry>
(default '())))
(define-record-type* <inetd-entry> inetd-entry make-inetd-entry
inetd-entry?
(node inetd-entry-node ;string or #f
(default #f))
(name inetd-entry-name) ;string, from /etc/services
(socket-type inetd-entry-socket-type) ;stream | dgram | raw |
;rdm | seqpacket
(protocol inetd-entry-protocol) ;string, from /etc/protocols
(wait? inetd-entry-wait? ;Boolean
(default #t))
(user inetd-entry-user) ;string
(program inetd-entry-program ;string or file-like object
(default "internal"))
(arguments inetd-entry-arguments ;list of strings or file-like objects
(default '())))
(define (inetd-config-file entries)
(apply mixed-text-file "inetd.conf"
(map
(lambda (entry)
(let* ((node (inetd-entry-node entry))
(name (inetd-entry-name entry))
(socket
(if node (string-append node ":" name) name))
(type
(match (inetd-entry-socket-type entry)
((or 'stream 'dgram 'raw 'rdm 'seqpacket)
(symbol->string (inetd-entry-socket-type entry)))))
(protocol (inetd-entry-protocol entry))
(wait (if (inetd-entry-wait? entry) "wait" "nowait"))
(user (inetd-entry-user entry))
(program (inetd-entry-program entry))
(args (inetd-entry-arguments entry)))
#~(string-append
(string-join
(list #$@(list socket type protocol wait user program) #$@args)
" ") "\n")))
entries)))
(define (inetd-shepherd-service config)
(let ((entries (inetd-configuration-entries config)))
(if (null? entries)
'() ;do nothing
(let ((program (inetd-configuration-program config)))
(list (shepherd-service
(documentation "Run inetd.")
(provision '(inetd))
(requirement '(user-processes networking syslogd))
(start #~(make-forkexec-constructor
(list #$program #$(inetd-config-file entries))
#:pid-file "/var/run/inetd.pid"))
(stop #~(make-kill-destructor))))))))
(define-public inetd-service-type
(service-type
(name 'inetd)
(extensions
(list (service-extension shepherd-root-service-type
inetd-shepherd-service)))
;; The service can be extended with additional lists of entries.
(compose concatenate)
(extend (lambda (config entries)
(inetd-configuration
(inherit config)
(entries (append (inetd-configuration-entries config)
entries)))))
(description
"Start @command{inetd}, the @dfn{Internet superserver}. It is responsible
for listening on Internet sockets and spawning the corresponding services on
demand.")))
;;;
;;; OpenDHT, the distributed hash table network used by Jami
;;;
(define-maybe/no-serialization number)
(define-maybe/no-serialization string)
;;; To generate the documentation of the following configuration record, you
;;; can evaluate: (configuration->documentation 'opendht-configuration)
(define-configuration/no-serialization opendht-configuration
(opendht
(file-like opendht)
"The @code{opendht} package to use.")
(peer-discovery?
(boolean #false)
"Whether to enable the multicast local peer discovery mechanism.")
(enable-logging?
(boolean #false)
"Whether to enable logging messages to syslog. It is disabled by default
as it is rather verbose.")
(debug?
(boolean #false)
"Whether to enable debug-level logging messages. This has no effect if
logging is disabled.")
(bootstrap-host
(maybe-string "bootstrap.jami.net:4222")
"The node host name that is used to make the first connection to the
network. A specific port value can be provided by appending the @code{:PORT}
suffix. By default, it uses the Jami bootstrap nodes, but any host can be
specified here. It's also possible to disable bootstrapping by explicitly
setting this field to @code{%unset-value}.")
(port
(maybe-number 4222)
"The UDP port to bind to. When left unspecified, an available port is
automatically selected.")
(proxy-server-port
maybe-number
"Spawn a proxy server listening on the specified port.")
(proxy-server-port-tls
maybe-number
"Spawn a proxy server listening to TLS connections on the specified
port."))
(define %opendht-accounts
;; User account and groups for Tor.
(list (user-group (name "opendht") (system? #t))
(user-account
(name "opendht")
(group "opendht")
(system? #t)
(comment "OpenDHT daemon user")
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define (opendht-configuration->command-line-arguments config)
"Derive the command line arguments used to launch the OpenDHT daemon from
CONFIG, an <opendht-configuration> object."
(match-record config <opendht-configuration>
(opendht bootstrap-host enable-logging? port debug? peer-discovery?
proxy-server-port proxy-server-port-tls)
(let ((dhtnode (least-authority-wrapper
;; XXX: Work around lack of support for multiple outputs
;; in 'file-append'.
(computed-file "dhtnode"
#~(symlink
(string-append #$opendht:tools
"/bin/dhtnode")
#$output))
#:name "dhtnode"
#:mappings (list (file-system-mapping
(source "/dev/log") ;for syslog
(target source)))
#:namespaces (delq 'net %namespaces))))
`(,dhtnode
"--service" ;non-forking mode
,@(if (string? bootstrap-host)
(list "--bootstrap" bootstrap-host))
,@(if enable-logging?
(list "--syslog")
'())
,@(if (number? port)
(list "--port" (number->string port))
'())
,@(if debug?
(list "--verbose")
'())
,@(if peer-discovery?
(list "--peer-discovery")
'())
,@(if (number? proxy-server-port)
(list "--proxyserver" (number->string proxy-server-port))
'())
,@(if (number? proxy-server-port-tls)
(list "--proxyserverssl" (number->string proxy-server-port-tls))
'())))))
(define (opendht-shepherd-service config)
"Return a <shepherd-service> running OpenDHT."
(shepherd-service
(documentation "Run an OpenDHT node.")
(provision '(opendht dhtnode dhtproxy))
(requirement '(networking syslogd))
(start #~(make-forkexec-constructor
(list #$@(opendht-configuration->command-line-arguments config))
#:user "opendht"
#:group "opendht"))
(stop #~(make-kill-destructor))))
(define opendht-service-type
(service-type
(name 'opendht)
(default-value (opendht-configuration))
(extensions
(list (service-extension shepherd-root-service-type
(compose list opendht-shepherd-service))
(service-extension account-service-type
(const %opendht-accounts))))
(description "Run the OpenDHT @command{dhtnode} command that allows
participating in the distributed hash table based OpenDHT network. The
service can be configured to act as a proxy to the distributed network, which
can be useful for portable devices where minimizing energy consumption is
paramount. OpenDHT was originally based on Kademlia and adapted for
applications in communication. It is used by Jami, for example.")))
;;;
;;; Tor.
;;;
(define-record-type* <tor-configuration>
tor-configuration make-tor-configuration
tor-configuration?
(tor tor-configuration-tor
(default tor))
(config-file tor-configuration-config-file
(default (plain-file "empty" "")))
(hidden-services tor-configuration-hidden-services
(default '()))
(socks-socket-type tor-configuration-socks-socket-type ; 'tcp or 'unix
(default 'tcp))
(control-socket? tor-configuration-control-socket-path
(default #f)))
(define %tor-accounts
;; User account and groups for Tor.
(list (user-group (name "tor") (system? #t))
(user-account
(name "tor")
(group "tor")
(system? #t)
(comment "Tor daemon user")
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define-configuration/no-serialization tor-onion-service-configuration
(name
string
"Name for this Onion Service. This creates a
@file{/var/lib/tor/hidden-services/@var{name}} directory, where the
@file{hostname} file contains the @indicateurl{.onion} host name for this
Onion Service.")
(mapping
alist
"Association list of port to address mappings. The following example:
@lisp
'((22 . \"127.0.0.1:22\")
(80 . \"127.0.0.1:8080\"))
@end lisp
maps ports 22 and 80 of the Onion Service to the local ports 22 and 8080."))
(define (tor-configuration->torrc config)
"Return a 'torrc' file for CONFIG."
(match-record config <tor-configuration>
(tor config-file hidden-services socks-socket-type control-socket?)
(computed-file
"torrc"
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils)
(ice-9 match))
(call-with-output-file #$output
(lambda (port)
(display "\
### These lines were generated from your system configuration:
DataDirectory /var/lib/tor
Log notice syslog\n" port)
(when (eq? 'unix '#$socks-socket-type)
(display "\
SocksPort unix:/var/run/tor/socks-sock
UnixSocksGroupWritable 1\n" port))
(when #$control-socket?
(display "\
ControlSocket unix:/var/run/tor/control-sock GroupWritable RelaxDirModeCheck
ControlSocketsGroupWritable 1\n"
port))
(for-each (match-lambda
((service (ports hosts) ...)
(format port "\
HiddenServiceDir /var/lib/tor/hidden-services/~a~%"
service)
(for-each (lambda (tcp-port host)
(format port "\
HiddenServicePort ~a ~a~%"
tcp-port host))
ports hosts)))
'#$(map (match-lambda
(($ <tor-onion-service-configuration> name mapping)
(cons name mapping)))
hidden-services))
(display "\
### End of automatically generated lines.\n\n" port)
;; Append the user's config file.
(call-with-input-file #$config-file
(lambda (input)
(dump-port input port)))
#t)))))))
(define (tor-shepherd-service config)
"Return a <shepherd-service> running Tor."
(let* ((torrc (tor-configuration->torrc config))
(tor (least-authority-wrapper
(file-append (tor-configuration-tor config) "/bin/tor")
#:name "tor"
#:mappings (list (file-system-mapping
(source "/var/lib/tor")
(target source)
(writable? #t))
(file-system-mapping
(source "/dev/log") ;for syslog
(target source))
(file-system-mapping
(source "/var/run/tor")
(target source)
(writable? #t))
(file-system-mapping
(source torrc)
(target source)))
#:namespaces (delq 'net %namespaces))))
(list (shepherd-service
(provision '(tor))
;; Tor needs at least one network interface to be up, hence the
;; dependency on 'loopback'.
(requirement '(user-processes loopback syslogd))
;; XXX: #:pid-file won't work because the wrapped 'tor'
;; program would print its PID within the user namespace
;; instead of its actual PID outside. There's no inetd or
;; systemd socket activation support either (there's
;; 'sd_notify' though), so we're stuck with that.
(start #~(make-forkexec-constructor
(list #$tor "-f" #$torrc)
#:user "tor" #:group "tor"))
(stop #~(make-kill-destructor))
(actions (list (shepherd-configuration-action torrc)))
(documentation "Run the Tor anonymous network overlay.")))))
(define (tor-activation config)
"Set up directories for Tor and its hidden services, if any."
#~(begin
(use-modules (guix build utils))
(define %user
(getpw "tor"))
(define (initialize service)
(let ((directory (string-append "/var/lib/tor/hidden-services/"
service)))
(mkdir-p directory)
(chown directory (passwd:uid %user) (passwd:gid %user))
;; The daemon bails out if we give wider permissions.
(chmod directory #o700)))
;; Allow Tor to write its PID file.
(mkdir-p "/var/run/tor")
(chown "/var/run/tor" (passwd:uid %user) (passwd:gid %user))
;; Set the group permissions to rw so that if the system administrator
;; has specified UnixSocksGroupWritable=1 in their torrc file, members
;; of the "tor" group will be able to use the SOCKS socket.
(chmod "/var/run/tor" #o750)
;; Allow Tor to access the hidden services' directories.
(mkdir-p "/var/lib/tor")
(chown "/var/lib/tor" (passwd:uid %user) (passwd:gid %user))
(chmod "/var/lib/tor" #o700)
;; Make sure /var/lib is accessible to the 'tor' user.
(chmod "/var/lib" #o755)
(for-each initialize
'#$(map tor-onion-service-configuration-name
(tor-configuration-hidden-services config)))))
(define tor-service-type
(service-type (name 'tor)
(extensions
(list (service-extension shepherd-root-service-type
tor-shepherd-service)
(service-extension account-service-type
(const %tor-accounts))
(service-extension activation-service-type
tor-activation)))
;; This can be extended with Tor Onion Services.
(compose concatenate)
(extend (lambda (config services)
(tor-configuration
(inherit config)
(hidden-services
(append (tor-configuration-hidden-services config)
services)))))
(default-value (tor-configuration))
(description
"Run the @uref{https://torproject.org, Tor} anonymous
networking daemon.")))
(define-deprecated (tor-hidden-service name mapping)
#f
"Define a new Tor @dfn{hidden service} called @var{name} and implementing
@var{mapping}. @var{mapping} is a list of port/host tuples, such as:
@example
'((22 . \"127.0.0.1:22\")
(80 . \"127.0.0.1:8080\"))
@end example
In this example, port 22 of the hidden service is mapped to local port 22, and
port 80 is mapped to local port 8080.
This creates a @file{/var/lib/tor/hidden-services/@var{name}} directory, where
the @file{hostname} file contains the @code{.onion} host name for the hidden
service.
See @uref{https://www.torproject.org/docs/tor-hidden-service.html.en, the Tor
project's documentation} for more information."
(simple-service 'tor-hidden-service
tor-service-type
(list (tor-onion-service-configuration
(name name)
(mapping mapping)))))
;;;
;;; ModemManager
;;;
(define-record-type* <modem-manager-configuration>
modem-manager-configuration make-modem-manager-configuration
modem-manager-configuration?
(modem-manager modem-manager-configuration-modem-manager
(default modem-manager)))
;;;
;;; NetworkManager
;;;
;; TODO: deprecated field, remove later.
(define-with-syntax-properties (warn-iwd?-field-deprecation
(value properties))
(when value
(warning (source-properties->location properties)
(G_ "the 'iwd?' field is deprecated, please use \
'shepherd-requirement' field instead~%")))
value)
(define-record-type* <network-manager-configuration>
network-manager-configuration make-network-manager-configuration
network-manager-configuration?
(network-manager network-manager-configuration-network-manager
(default network-manager))
(shepherd-requirement network-manager-configuration-shepherd-requirement
(default '(wpa-supplicant)))
(dns network-manager-configuration-dns
(default "default"))
(vpn-plugins network-manager-configuration-vpn-plugins ;list of file-like
(default '()))
(iwd? network-manager-configuration-iwd? ; TODO: deprecated field, remove.
(default #f)
(sanitize warn-iwd?-field-deprecation)))
(define (network-manager-activation config)
;; Activation gexp for NetworkManager
(match-record config <network-manager-configuration>
(network-manager dns vpn-plugins)
#~(begin
(use-modules (guix build utils))
(mkdir-p "/etc/NetworkManager/system-connections")
#$@(if (equal? dns "dnsmasq")
;; create directory to store dnsmasq lease file
'((mkdir-p "/var/lib/misc"))
'()))))
(define (vpn-plugin-directory plugins)
"Return a directory containing PLUGINS, the NM VPN plugins."
(directory-union "network-manager-vpn-plugins" plugins))
(define (network-manager-accounts config)
"Return the list of <user-account> and <user-group> for CONFIG."
(define nologin
(file-append shadow "/sbin/nologin"))
(define accounts
(append-map (lambda (package)
(map (lambda (name)
(user-account (system? #t)
(name name)
(group "network-manager")
(comment "NetworkManager helper")
(home-directory "/var/empty")
(create-home-directory? #f)
(shell nologin)))
(or (assoc-ref (package-properties package)
'user-accounts)
'())))
(network-manager-configuration-vpn-plugins config)))
(match accounts
(()
'())
(_
(cons (user-group (name "network-manager") (system? #t))
accounts))))
(define (network-manager-environment config)
(match-record config <network-manager-configuration>
(network-manager dns vpn-plugins)
;; Define this variable in the global environment such that
;; "nmcli connection import type openvpn file foo.ovpn" works.
`(("NM_VPN_PLUGIN_DIR"
. ,(file-append (vpn-plugin-directory vpn-plugins)
"/lib/NetworkManager/VPN")))))
(define (network-manager-shepherd-service config)
(match-record config <network-manager-configuration>
(network-manager shepherd-requirement dns vpn-plugins iwd?)
(let* ((iwd? (or iwd? ; TODO: deprecated field, remove later.
(and shepherd-requirement
(memq 'iwd shepherd-requirement))))
(conf (plain-file "NetworkManager.conf"
(string-append
"[main]\ndns=" dns "\n"
(if iwd? "[device]\nwifi.backend=iwd\n" ""))))
(vpn (vpn-plugin-directory vpn-plugins)))
(list (shepherd-service
(documentation "Run the NetworkManager.")
(provision '(NetworkManager networking))
(requirement `(user-processes dbus-system loopback
,@shepherd-requirement
;; TODO: iwd? is deprecated and should be passed
;; with shepherd-requirement, remove later.
,@(if iwd? '(iwd) '())))
(actions (list (shepherd-configuration-action conf)))
(start
#~(lambda _
(let ((pid
(fork+exec-command
(list #$(file-append network-manager
"/sbin/NetworkManager")
(string-append "--config=" #$conf)
"--no-daemon")
#:environment-variables
(list (string-append "NM_VPN_PLUGIN_DIR=" #$vpn
"/lib/NetworkManager/VPN")
;; Override non-existent default users
"NM_OPENVPN_USER="
"NM_OPENVPN_GROUP="
;; Allow NetworkManager to find the modules.
(string-append
"LINUX_MODULE_DIRECTORY="
"/run/booted-system/kernel/lib/modules")))))
;; XXX: Despite the "online" name, this doesn't guarantee
;; WAN connectivity, it merely waits for NetworkManager
;; to finish starting-up. This is required otherwise
;; services will fail since the network interfaces be
;; absent until NetworkManager finishes setting them up.
(system* #$(file-append network-manager "/bin/nm-online")
"--wait-for-startup" "--quiet")
;; XXX: Finally, return the pid from running
;; fork+exec-command to shepherd.
pid)))
(stop #~(make-kill-destructor)))))))
(define network-manager-service-type
(let ((config->packages
(lambda (config)
(match-record config <network-manager-configuration>
(network-manager vpn-plugins)
`(,network-manager ,@vpn-plugins)))))
(service-type
(name 'network-manager)
(extensions
(list (service-extension shepherd-root-service-type
network-manager-shepherd-service)
(service-extension dbus-root-service-type config->packages)
(service-extension polkit-service-type
(compose
list
network-manager-configuration-network-manager))
(service-extension account-service-type
network-manager-accounts)
(service-extension activation-service-type
network-manager-activation)
(service-extension session-environment-service-type
network-manager-environment)
;; Add network-manager to the system profile.
(service-extension profile-service-type config->packages)))
(default-value (network-manager-configuration))
(description
"Run @uref{https://wiki.gnome.org/Projects/NetworkManager,
NetworkManager}, a network management daemon that aims to simplify wired and
wireless networking."))))
;;;
;;; Connman
;;;
(define-record-type* <connman-configuration>
connman-configuration make-connman-configuration
connman-configuration?
(connman connman-configuration-connman
(default connman))
(shepherd-requirement connman-configuration-shepherd-requirement
(default '()))
(disable-vpn? connman-configuration-disable-vpn?
(default #f))
(iwd? connman-configuration-iwd?
(default #f)
(sanitize warn-iwd?-field-deprecation)))
(define (connman-activation config)
(let ((disable-vpn? (connman-configuration-disable-vpn? config)))
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(mkdir-p "/var/lib/connman/")
(unless #$disable-vpn?
(mkdir-p "/var/lib/connman-vpn/"))))))
(define (connman-shepherd-service config)
(match-record config <connman-configuration> (connman shepherd-requirement
disable-vpn? iwd?)
(let ((iwd? (or iwd? ; TODO: deprecated field, remove later.
(and shepherd-requirement
(memq 'iwd shepherd-requirement)))))
(list (shepherd-service
(documentation "Run Connman")
(provision '(connman networking))
(requirement `(user-processes dbus-system loopback
,@shepherd-requirement
;; TODO: iwd? is deprecated and should be passed
;; with shepherd-requirement, remove later.
,@(if iwd? '(iwd) '())))
(start #~(make-forkexec-constructor
(list (string-append #$connman
"/sbin/connmand")
"--nodaemon"
"--nodnsproxy"
#$@(if disable-vpn? '("--noplugin=vpn") '())
#$@(if iwd? '("--wifi=iwd_agent") '()))
;; As connman(8) notes, when passing '-n', connman
;; "directs log output to the controlling terminal in
;; addition to syslog." Redirect stdout and stderr
;; to avoid spamming the console (XXX: for some reason
;; redirecting to /dev/null doesn't work.)
#:log-file "/var/log/connman.log"))
(stop #~(make-kill-destructor)))))))
(define %connman-log-rotation
(list (log-rotation
(files '("/var/log/connman.log")))))
(define connman-service-type
(let ((connman-package (compose list connman-configuration-connman)))
(service-type (name 'connman)
(extensions
(list (service-extension shepherd-root-service-type
connman-shepherd-service)
(service-extension polkit-service-type
connman-package)
(service-extension dbus-root-service-type
connman-package)
(service-extension activation-service-type
connman-activation)
;; Add connman to the system profile.
(service-extension profile-service-type
connman-package)
(service-extension rottlog-service-type
(const %connman-log-rotation))))
(default-value (connman-configuration))
(description
"Run @url{https://01.org/connman,Connman},
a network connection manager."))))
;;;
;;; Modem manager
;;;
(define modem-manager-service-type
(let ((config->package
(lambda (config)
(list (modem-manager-configuration-modem-manager config)))))
(service-type (name 'modem-manager)
(extensions
(list (service-extension dbus-root-service-type
config->package)
(service-extension udev-service-type
config->package)
(service-extension polkit-service-type
config->package)))
(default-value (modem-manager-configuration))
(description
"Run @uref{https://wiki.gnome.org/Projects/ModemManager,
ModemManager}, a modem management daemon that aims to simplify dialup
networking."))))
;;;
;;; USB_ModeSwitch
;;;
(define-record-type* <usb-modeswitch-configuration>
usb-modeswitch-configuration make-usb-modeswitch-configuration
usb-modeswitch-configuration?
(usb-modeswitch usb-modeswitch-configuration-usb-modeswitch
(default usb-modeswitch))
(usb-modeswitch-data usb-modeswitch-configuration-usb-modeswitch-data
(default usb-modeswitch-data))
(config-file usb-modeswitch-configuration-config-file
(default #~(string-append #$usb-modeswitch:dispatcher
"/etc/usb_modeswitch.conf"))))
(define (usb-modeswitch-sh usb-modeswitch config-file)
"Build a copy of usb_modeswitch.sh located in package USB-MODESWITCH,
modified to pass the CONFIG-FILE in its calls to usb_modeswitch_dispatcher,
and wrap it to actually find the dispatcher in USB-MODESWITCH. The script
will be run by USB_ModeSwitch’s udev rules file when a modeswitchable USB
device is detected."
(computed-file
"usb_modeswitch-sh"
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(let ((cfg-param
#$(if config-file
#~(string-append " --config-file=" #$config-file)
"")))
(mkdir #$output)
(install-file (string-append #$usb-modeswitch:dispatcher
"/lib/udev/usb_modeswitch")
#$output)
;; insert CFG-PARAM into usb_modeswitch_dispatcher command-lines
(substitute* (string-append #$output "/usb_modeswitch")
(("(exec usb_modeswitch_dispatcher .*)( 2>>)" _ left right)
(string-append left cfg-param right))
(("(exec usb_modeswitch_dispatcher .*)( &)" _ left right)
(string-append left cfg-param right)))
;; wrap-program needs bash in PATH:
(putenv (string-append "PATH=" #$bash "/bin"))
(wrap-program (string-append #$output "/usb_modeswitch")
`("PATH" ":" = (,(string-append #$coreutils "/bin")
,(string-append
#$usb-modeswitch:dispatcher
"/bin")))))))))
(define (usb-modeswitch-configuration->udev-rules config)
"Build a rules file for extending udev-service-type from the rules in the
usb-modeswitch package specified in CONFIG. The rules file will invoke
usb_modeswitch.sh from the usb-modeswitch package, modified to pass the right
config file."
(match-record config <usb-modeswitch-configuration>
(usb-modeswitch usb-modeswitch-data config-file)
(computed-file
"usb_modeswitch.rules"
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(let ((in (string-append #$usb-modeswitch-data
"/udev/40-usb_modeswitch.rules"))
(out (string-append #$output "/lib/udev/rules.d"))
(script #$(usb-modeswitch-sh usb-modeswitch config-file)))
(mkdir-p out)
(chdir out)
(install-file in out)
(substitute* "40-usb_modeswitch.rules"
(("PROGRAM=\"usb_modeswitch")
(string-append "PROGRAM=\"" script "/usb_modeswitch"))
(("RUN\\+=\"usb_modeswitch")
(string-append "RUN+=\"" script "/usb_modeswitch")))))))))
(define usb-modeswitch-service-type
(service-type
(name 'usb-modeswitch)
(extensions
(list
(service-extension
udev-service-type
(lambda (config)
(let ((rules (usb-modeswitch-configuration->udev-rules config)))
(list rules))))))
(default-value (usb-modeswitch-configuration))
(description "Run @uref{http://www.draisberghof.de/usb_modeswitch/,
USB_ModeSwitch}, a mode switching tool for controlling USB devices with
multiple @dfn{modes}. When plugged in for the first time many USB
devices (primarily high-speed WAN modems) act like a flash storage containing
installers for Windows drivers. USB_ModeSwitch replays the sequence the
Windows drivers would send to switch their mode from storage to modem (or
whatever the thing is supposed to do).")))
;;;
;;; WPA supplicant
;;;
(define-record-type* <wpa-supplicant-configuration>
wpa-supplicant-configuration make-wpa-supplicant-configuration
wpa-supplicant-configuration?
(wpa-supplicant wpa-supplicant-configuration-wpa-supplicant ;file-like
(default wpa-supplicant))
(requirement wpa-supplicant-configuration-requirement ;list of symbols
(default '(user-processes loopback syslogd)))
(pid-file wpa-supplicant-configuration-pid-file ;string
(default "/var/run/wpa_supplicant.pid"))
(dbus? wpa-supplicant-configuration-dbus? ;Boolean
(default #t))
(interface wpa-supplicant-configuration-interface ;#f | string
(default #f))
(config-file wpa-supplicant-configuration-config-file ;#f | <file-like>
(default #f))
(extra-options wpa-supplicant-configuration-extra-options ;list of strings
(default '())))
(define (wpa-supplicant-shepherd-service config)
(match-record config <wpa-supplicant-configuration>
(wpa-supplicant requirement pid-file dbus?
interface config-file extra-options)
(list (shepherd-service
(documentation "Run the WPA supplicant daemon")
(provision '(wpa-supplicant))
(requirement (if dbus?
(cons 'dbus-system requirement)
requirement))
(start #~(make-forkexec-constructor
(list (string-append #$wpa-supplicant
"/sbin/wpa_supplicant")
(string-append "-P" #$pid-file)
"-B" ;run in background
"-s" ;log to syslogd
#$@(if dbus?
#~("-u")
#~())
#$@(if interface
#~((string-append "-i" #$interface))
#~())
#$@(if config-file
#~((string-append "-c" #$config-file))
#~())
#$@extra-options)
#:pid-file #$pid-file))
(stop #~(make-kill-destructor))))))
(define wpa-supplicant-service-type
(let ((config->package
(lambda (config)
(list (wpa-supplicant-configuration-wpa-supplicant config)))))
(service-type (name 'wpa-supplicant)
(extensions
(list (service-extension shepherd-root-service-type
wpa-supplicant-shepherd-service)
(service-extension dbus-root-service-type config->package)
(service-extension profile-service-type config->package)))
(description "Run the WPA Supplicant daemon, a service that
implements authentication, key negotiation and more for wireless networks.")
(default-value (wpa-supplicant-configuration)))))
;;;
;;; Hostapd.
;;;
(define-record-type* <hostapd-configuration>
hostapd-configuration make-hostapd-configuration
hostapd-configuration?
(package hostapd-configuration-package
(default hostapd))
(interface hostapd-configuration-interface ;string
(default "wlan0"))
(ssid hostapd-configuration-ssid) ;string
(broadcast-ssid? hostapd-configuration-broadcast-ssid? ;Boolean
(default #t))
(channel hostapd-configuration-channel ;integer
(default 1))
(driver hostapd-configuration-driver ;string
(default "nl80211"))
;; See <https://w1.fi/cgit/hostap/plain/hostapd/hostapd.conf> for a list of
;; additional options we could add.
(extra-settings hostapd-configuration-extra-settings ;string
(default "")))
(define (hostapd-configuration-file config)
"Return the configuration file for CONFIG, a <hostapd-configuration>."
(match-record config <hostapd-configuration>
(interface ssid broadcast-ssid? channel driver extra-settings)
(plain-file "hostapd.conf"
(string-append "\
# Generated from your Guix configuration.
interface=" interface "
ssid=" ssid "
ignore_broadcast_ssid=" (if broadcast-ssid? "0" "1") "
channel=" (number->string channel) "\n"
extra-settings "\n"))))
(define* (hostapd-shepherd-services config #:key (requirement '()))
"Return Shepherd services for hostapd."
(list (shepherd-service
(provision '(hostapd))
(requirement `(user-processes ,@requirement))
(documentation "Run the hostapd WiFi access point daemon.")
(start #~(make-forkexec-constructor
(list #$(file-append (hostapd-configuration-package config)
"/sbin/hostapd")
#$(hostapd-configuration-file config))
#:log-file "/var/log/hostapd.log"))
(stop #~(make-kill-destructor)))))
(define %hostapd-log-rotation
(list (log-rotation
(files '("/var/log/hostapd.log")))))
(define hostapd-service-type
(service-type
(name 'hostapd)
(extensions
(list (service-extension shepherd-root-service-type
hostapd-shepherd-services)
(service-extension rottlog-service-type
(const %hostapd-log-rotation))))
(description
"Run the @uref{https://w1.fi/hostapd/, hostapd} daemon for Wi-Fi access
points and authentication servers.")))
(define (simulated-wifi-shepherd-services config)
"Return Shepherd services to run hostapd with CONFIG, a
<hostapd-configuration>, as well as services to set up WiFi hardware
simulation."
(append (hostapd-shepherd-services config
#:requirement
'(unblocked-wifi
kernel-module-loader))
(list (shepherd-service
(provision '(unblocked-wifi))
(requirement '(file-systems kernel-module-loader))
(documentation
"Unblock WiFi devices for use by mac80211_hwsim.")
(start #~(lambda _
(invoke #$(file-append util-linux "/sbin/rfkill")
"unblock" "0")
(invoke #$(file-append util-linux "/sbin/rfkill")
"unblock" "1")))
(one-shot? #t)))))
(define simulated-wifi-service-type
(service-type
(name 'simulated-wifi)
(extensions
(list (service-extension shepherd-root-service-type
simulated-wifi-shepherd-services)
(service-extension kernel-module-loader-service-type
(const '("mac80211_hwsim")))))
(default-value (hostapd-configuration
(interface "wlan1")
(ssid "Test Network")))
(description "Run hostapd to simulate WiFi connectivity.")))
;;;
;;; Open vSwitch
;;;
(define-record-type* <openvswitch-configuration>
openvswitch-configuration make-openvswitch-configuration
openvswitch-configuration?
(package openvswitch-configuration-package
(default openvswitch)))
(define (openvswitch-activation config)
(let ((ovsdb-tool (file-append (openvswitch-configuration-package config)
"/bin/ovsdb-tool")))
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(mkdir-p "/var/run/openvswitch")
(mkdir-p "/var/lib/openvswitch")
(let ((conf.db "/var/lib/openvswitch/conf.db"))
(unless (file-exists? conf.db)
(system* #$ovsdb-tool "create" conf.db)))))))
(define (openvswitch-shepherd-service config)
(let* ((package (openvswitch-configuration-package config))
(ovsdb-server (file-append package "/sbin/ovsdb-server"))
(ovs-vswitchd (file-append package "/sbin/ovs-vswitchd")))
(list (shepherd-service
(provision '(ovsdb))
(requirement '(user-processes))
(documentation "Run the Open vSwitch database server.")
(start #~(make-forkexec-constructor
(list #$ovsdb-server "--pidfile"
"--remote=punix:/var/run/openvswitch/db.sock")
#:pid-file "/var/run/openvswitch/ovsdb-server.pid"))
(stop #~(make-kill-destructor)))
(shepherd-service
(provision '(vswitchd))
(requirement '(ovsdb))
(documentation "Run the Open vSwitch daemon.")
(start #~(make-forkexec-constructor
(list #$ovs-vswitchd "--pidfile")
#:pid-file "/var/run/openvswitch/ovs-vswitchd.pid"))
(stop #~(make-kill-destructor))))))
(define openvswitch-service-type
(service-type
(name 'openvswitch)
(extensions
(list (service-extension activation-service-type
openvswitch-activation)
(service-extension profile-service-type
(compose list openvswitch-configuration-package))
(service-extension shepherd-root-service-type
openvswitch-shepherd-service)))
(description
"Run @uref{http://www.openvswitch.org, Open vSwitch}, a multilayer virtual
switch designed to enable massive network automation through programmatic
extension.")
(default-value (openvswitch-configuration))))
;;;
;;; iptables
;;;
(define %iptables-accept-all-rules
(plain-file "iptables-accept-all.rules"
"*filter
:INPUT ACCEPT
:FORWARD ACCEPT
:OUTPUT ACCEPT
COMMIT
"))
(define-record-type* <iptables-configuration>
iptables-configuration make-iptables-configuration iptables-configuration?
(iptables iptables-configuration-iptables
(default iptables))
(ipv4-rules iptables-configuration-ipv4-rules
(default %iptables-accept-all-rules))
(ipv6-rules iptables-configuration-ipv6-rules
(default %iptables-accept-all-rules)))
(define (iptables-shepherd-service config)
(match-record config <iptables-configuration>
(iptables ipv4-rules ipv6-rules)
(let ((iptables-restore (file-append iptables "/sbin/iptables-restore"))
(ip6tables-restore (file-append iptables "/sbin/ip6tables-restore")))
(shepherd-service
(documentation "Packet filtering framework")
(provision '(iptables))
(start #~(lambda _
(invoke #$iptables-restore #$ipv4-rules)
(invoke #$ip6tables-restore #$ipv6-rules)))
(stop #~(lambda _
(invoke #$iptables-restore #$%iptables-accept-all-rules)
(invoke #$ip6tables-restore #$%iptables-accept-all-rules)))))))
(define iptables-service-type
(service-type
(name 'iptables)
(description
"Run @command{iptables-restore}, setting up the specified rules.")
(extensions
(list (service-extension shepherd-root-service-type
(compose list iptables-shepherd-service))))))
;;;
;;; nftables
;;;
(define %default-nftables-ruleset
(plain-file "nftables.conf"
"# A simple and safe firewall
table inet filter {
chain input {
type filter hook input priority 0; policy drop;
# early drop of invalid connections
ct state invalid drop
# allow established/related connections
ct state { established, related } accept
# allow from loopback
iif lo accept
# drop connections to lo not coming from lo
iif != lo ip daddr 127.0.0.1/8 drop
iif != lo ip6 daddr ::1/128 drop
# allow icmp
ip protocol icmp accept
ip6 nexthdr icmpv6 accept
# allow ssh
tcp dport ssh accept
# reject everything else
reject with icmpx type port-unreachable
}
chain forward {
type filter hook forward priority 0; policy drop;
}
chain output {
type filter hook output priority 0; policy accept;
}
}
"))
(define-record-type* <nftables-configuration>
nftables-configuration
make-nftables-configuration
nftables-configuration?
(package nftables-configuration-package
(default nftables))
(ruleset nftables-configuration-ruleset ; file-like object
(default %default-nftables-ruleset)))
(define (nftables-shepherd-service config)
(match-record config <nftables-configuration>
(package ruleset)
(let ((nft (file-append package "/sbin/nft")))
(shepherd-service
(documentation "Packet filtering and classification")
(actions (list (shepherd-configuration-action ruleset)))
(provision '(nftables))
(start #~(lambda _
(invoke #$nft "--file" #$ruleset)))
(stop #~(lambda _
(invoke #$nft "flush" "ruleset")))))))
(define nftables-service-type
(service-type
(name 'nftables)
(description
"Run @command{nft}, setting up the specified ruleset.")
(extensions
(list (service-extension shepherd-root-service-type
(compose list nftables-shepherd-service))
(service-extension profile-service-type
(compose list nftables-configuration-package))))
(default-value (nftables-configuration))))
;;;
;;; PageKite
;;;
(define-record-type* <pagekite-configuration>
pagekite-configuration
make-pagekite-configuration
pagekite-configuration?
(package pagekite-configuration-package
(default pagekite))
(kitename pagekite-configuration-kitename
(default #f))
(kitesecret pagekite-configuration-kitesecret
(default #f))
(frontend pagekite-configuration-frontend
(default #f))
(kites pagekite-configuration-kites
(default '("http:@kitename:localhost:80:@kitesecret")))
(extra-file pagekite-configuration-extra-file
(default #f)))
(define (pagekite-configuration-file config)
(match-record config <pagekite-configuration>
(package kitename kitesecret frontend kites extra-file)
(mixed-text-file "pagekite.rc"
(if extra-file
(string-append "optfile = " extra-file "\n")
"")
(if kitename
(string-append "kitename = " kitename "\n")
"")
(if kitesecret
(string-append "kitesecret = " kitesecret "\n")
"")
(if frontend
(string-append "frontend = " frontend "\n")
"defaults\n")
(string-join (map (lambda (kite)
(string-append "service_on = " kite))
kites)
"\n"
'suffix))))
(define (pagekite-shepherd-service config)
(match-record config <pagekite-configuration>
(package kitename kitesecret frontend kites extra-file)
(with-imported-modules (source-module-closure
'((gnu build shepherd)
(gnu system file-systems)))
(shepherd-service
(documentation "Run the PageKite service.")
(provision '(pagekite))
(requirement '(networking))
(modules '((gnu build shepherd)
(gnu system file-systems)))
(start #~(make-forkexec-constructor/container
(list #$(file-append package "/bin/pagekite")
"--clean"
"--nullui"
"--nocrashreport"
"--runas=pagekite:pagekite"
(string-append "--optfile="
#$(pagekite-configuration-file config)))
#:log-file "/var/log/pagekite.log"
#:mappings #$(if extra-file
#~(list (file-system-mapping
(source #$extra-file)
(target source)))
#~'())))
;; SIGTERM doesn't always work for some reason.
(stop #~(make-kill-destructor SIGINT))))))
(define %pagekite-log-rotation
(list (log-rotation
(files '("/var/log/pagekite.log")))))
(define %pagekite-accounts
(list (user-group (name "pagekite") (system? #t))
(user-account
(name "pagekite")
(group "pagekite")
(system? #t)
(comment "PageKite user")
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define pagekite-service-type
(service-type
(name 'pagekite)
(default-value (pagekite-configuration))
(extensions
(list (service-extension shepherd-root-service-type
(compose list pagekite-shepherd-service))
(service-extension account-service-type
(const %pagekite-accounts))
(service-extension rottlog-service-type
(const %pagekite-log-rotation))))
(description
"Run @url{https://pagekite.net/,PageKite}, a tunneling solution to make
local servers publicly accessible on the web, even behind NATs and firewalls.")))
;;;
;;; Yggdrasil
;;;
(define-record-type* <yggdrasil-configuration>
yggdrasil-configuration
make-yggdrasil-configuration
yggdrasil-configuration?
(package yggdrasil-configuration-package
(default yggdrasil))
(json-config yggdrasil-configuration-json-config
(default '()))
(config-file yggdrasil-config-file
(default "/etc/yggdrasil-private.conf"))
(autoconf? yggdrasil-configuration-autoconf?
(default #f))
(log-level yggdrasil-configuration-log-level
(default 'info))
(log-to yggdrasil-configuration-log-to
(default 'stdout)))
(define (yggdrasil-configuration-file config)
(define (scm->yggdrasil-json x)
(define key-value?
dotted-list?)
(define (param->camel str)
(string-concatenate
(map
string-capitalize
(string-split str (cut eqv? <> #\-)))))
(cond
((key-value? x)
(let ((k (car x))
(v (cdr x)))
(cons
(if (symbol? k)
(param->camel (symbol->string k))
k)
v)))
((list? x) (map scm->yggdrasil-json x))
((vector? x) (vector-map scm->yggdrasil-json x))
(else x)))
(computed-file
"yggdrasil.conf"
#~(call-with-output-file #$output
(lambda (port)
;; it's HJSON, so comments are a-okay
(display "# Generated by yggdrasil-service\n" port)
(display #$(scm->json-string
(scm->yggdrasil-json
(yggdrasil-configuration-json-config config)))
port)))))
(define (yggdrasil-shepherd-service config)
"Return a <shepherd-service> for yggdrasil with CONFIG."
(define yggdrasil-command
#~(append
(list (string-append
#$(yggdrasil-configuration-package config)
"/bin/yggdrasil")
"-useconffile"
#$(yggdrasil-configuration-file config))
(if #$(yggdrasil-configuration-autoconf? config)
'("-autoconf")
'())
(let ((extraconf #$(yggdrasil-config-file config)))
(if extraconf
(list "-extraconffile" extraconf)
'()))
(list "-loglevel"
#$(symbol->string
(yggdrasil-configuration-log-level config))
"-logto"
#$(symbol->string
(yggdrasil-configuration-log-to config)))))
(list (shepherd-service
(documentation "Connect to the Yggdrasil mesh network")
(provision '(yggdrasil))
(requirement '(networking))
(start #~(make-forkexec-constructor
#$yggdrasil-command
#:log-file "/var/log/yggdrasil.log"
#:group "yggdrasil"))
(stop #~(make-kill-destructor)))))
(define %yggdrasil-log-rotation
(list (log-rotation
(files '("/var/log/yggdrasil.log")))))
(define %yggdrasil-accounts
(list (user-group (name "yggdrasil") (system? #t))))
(define yggdrasil-service-type
(service-type
(name 'yggdrasil)
(description
"Connect to the Yggdrasil mesh network.
See @command{yggdrasil -genconf} for config options.")
(extensions
(list (service-extension shepherd-root-service-type
yggdrasil-shepherd-service)
(service-extension account-service-type
(const %yggdrasil-accounts))
(service-extension profile-service-type
(compose list yggdrasil-configuration-package))
(service-extension rottlog-service-type
(const %yggdrasil-log-rotation))))))
;;;
;;; IPFS
;;;
(define-record-type* <ipfs-configuration>
ipfs-configuration
make-ipfs-configuration
ipfs-configuration?
(package ipfs-configuration-package
(default go-ipfs))
(gateway ipfs-configuration-gateway
(default "/ip4/127.0.0.1/tcp/8082"))
(api ipfs-configuration-api
(default "/ip4/127.0.0.1/tcp/5001")))
(define %ipfs-home "/var/lib/ipfs")
(define %ipfs-accounts
(list (user-account
(name "ipfs")
(group "ipfs")
(system? #t)
(comment "IPFS daemon user")
(home-directory "/var/lib/ipfs")
(shell (file-append shadow "/sbin/nologin")))
(user-group
(name "ipfs")
(system? #t))))
(define (ipfs-binary config)
(define command
(file-append (ipfs-configuration-package config) "/bin/ipfs"))
(least-authority-wrapper
command
#:name "ipfs"
#:mappings (list %ipfs-home-mapping)
#:namespaces (delq 'net %namespaces)))
(define %ipfs-home-mapping
(file-system-mapping
(source %ipfs-home)
(target %ipfs-home)
(writable? #t)))
(define %ipfs-environment
#~(list #$(string-append "HOME=" %ipfs-home)))
(define (ipfs-shepherd-service config)
"Return a <shepherd-service> for IPFS with CONFIG."
(define ipfs-daemon-command
#~(list #$(ipfs-binary config) "daemon"))
(list (shepherd-service
(provision '(ipfs))
;; While IPFS is most useful when the machine is connected
;; to the network, only loopback is required for starting
;; the service.
(requirement '(loopback))
(documentation "Connect to the IPFS network")
(start #~(make-forkexec-constructor
#$ipfs-daemon-command
#:log-file "/var/log/ipfs.log"
#:user "ipfs" #:group "ipfs"
#:environment-variables #$%ipfs-environment))
(stop #~(make-kill-destructor)))))
(define %ipfs-log-rotation
(list (log-rotation
(files '("/var/log/ipfs.log")))))
(define (%ipfs-activation config)
"Return an activation gexp for IPFS with CONFIG"
(define (exec-command . args)
;; Exec the given ifps command with the right authority.
#~(let ((pid (primitive-fork)))
(if (zero? pid)
(dynamic-wind
(const #t)
(lambda ()
;; Run ipfs init and ipfs config from a container,
;; in case the IPFS daemon was compromised at some point
;; and ~/.ipfs is now a symlink to somewhere outside
;; %ipfs-home.
(let ((pw (getpwnam "ipfs")))
(setgroups '#())
(setgid (passwd:gid pw))
(setuid (passwd:uid pw))
(environ #$%ipfs-environment)
(execl #$(ipfs-binary config) #$@args)))
(lambda ()
(primitive-exit 127)))
(waitpid pid))))
(define settings
`(("Addresses.API" ,(ipfs-configuration-api config))
("Addresses.Gateway" ,(ipfs-configuration-gateway config))))
(define inner-gexp
#~(begin
(umask #o077)
;; Create $HOME/.ipfs structure
#$(exec-command "ipfs" "init")
;; Apply settings
#$@(map (match-lambda
((setting value)
(exec-command "ipfs" "config" setting value)))
settings)))
(define inner-script
(program-file "ipfs-activation-inner" inner-gexp))
;; The activation may happen from the initrd, which uses
;; a statically-linked guile, while the guix container
;; procedures require a working dynamic-link.
#~(system* #$inner-script))
(define ipfs-service-type
(service-type
(name 'ipfs)
(extensions
(list (service-extension account-service-type
(const %ipfs-accounts))
(service-extension activation-service-type
%ipfs-activation)
(service-extension shepherd-root-service-type
ipfs-shepherd-service)
(service-extension rottlog-service-type
(const %ipfs-log-rotation))))
(default-value (ipfs-configuration))
(description
"Run @command{ipfs daemon}, the reference implementation
of the IPFS peer-to-peer storage network.")))
;;;
;;; Keepalived
;;;
(define-record-type* <keepalived-configuration>
keepalived-configuration make-keepalived-configuration
keepalived-configuration?
(keepalived keepalived-configuration-keepalived ;file-like
(default keepalived))
(config-file keepalived-configuration-config-file ;file-like
(default #f)))
(define (keepalived-shepherd-service config)
(match-record config <keepalived-configuration>
(keepalived config-file)
(list (shepherd-service
(provision '(keepalived))
(documentation "Run keepalived.")
(requirement '(loopback))
(start #~(make-forkexec-constructor
(list (string-append #$keepalived "/sbin/keepalived")
"--dont-fork" "--log-console" "--log-detail"
"--pid=/var/run/keepalived.pid"
(string-append "--use-file=" #$config-file))
#:pid-file "/var/run/keepalived.pid"
#:log-file "/var/log/keepalived.log"))
(respawn? #f)
(stop #~(make-kill-destructor))))))
(define %keepalived-log-rotation
(list (log-rotation
(files '("/var/log/keepalived.log")))))
(define keepalived-service-type
(service-type (name 'keepalived)
(extensions (list (service-extension shepherd-root-service-type
keepalived-shepherd-service)
(service-extension rottlog-service-type
(const %keepalived-log-rotation))))
(description
"Run @uref{https://www.keepalived.org/, Keepalived}
routing software.")))
;;; networking.scm ends here
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