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-rw-r--r--gnu/services/networking.scm78
1 files changed, 78 insertions, 0 deletions
diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
index 6ac440fd26..be34f32395 100644
--- a/gnu/services/networking.scm
+++ b/gnu/services/networking.scm
@@ -57,6 +57,18 @@
static-networking-service
static-networking-service-type
dhcp-client-service
+
+ 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-servers
ntp-configuration
@@ -341,6 +353,72 @@ to handle."
Protocol (DHCP) client, on all the non-loopback network interfaces."
(service dhcp-client-service-type dhcp))
+(define-record-type* <dhcpd-configuration>
+ dhcpd-configuration make-dhcpd-configuration
+ dhcpd-configuration?
+ (package dhcpd-configuration-package ;<package>
+ (default isc-dhcp))
+ (config-file dhcpd-configuration-config-file ;file-like
+ (default #f))
+ (version dhcpd-configuration-version ;"4", "6", or "4o6"
+ (default "6"))
+ (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
+ (match-lambda
+ (($ <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 #$pid-file))
+ (stop #~(make-kill-destructor)))))))
+
+(define dhcpd-activation
+ (match-lambda
+ (($ <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
+ #$(file-append package "/sbin/dhcpd") "-t" "-cf"
+ #$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)))))
+
(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