diff options
Diffstat (limited to 'gnu/system/mapped-devices.scm')
| -rw-r--r-- | gnu/system/mapped-devices.scm | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gnu/system/mapped-devices.scm b/gnu/system/mapped-devices.scm index dd8e432688..be2d6a4749 100644 --- a/gnu/system/mapped-devices.scm +++ b/gnu/system/mapped-devices.scm @@ -19,7 +19,10 @@ (define-module (gnu system mapped-devices) #:use-module (guix gexp) #:use-module (guix records) + #:use-module (gnu services) + #:use-module (gnu services shepherd) #:autoload (gnu packages cryptsetup) (cryptsetup) + #:use-module (ice-9 match) #:export (mapped-device mapped-device? mapped-device-source @@ -31,6 +34,9 @@ mapped-device-kind-open mapped-device-kind-close + device-mapping-service-type + device-mapping-service + luks-device-mapping)) ;;; Commentary: @@ -56,6 +62,31 @@ ;;; +;;; Device mapping as a Shepherd service. +;;; + +(define device-mapping-service-type + (shepherd-service-type + 'device-mapping + (match-lambda + ((target open close) + (shepherd-service + (provision (list (symbol-append 'device-mapping- (string->symbol target)))) + (requirement '(udev)) + (documentation "Map a device node using Linux's device mapper.") + (start #~(lambda () #$open)) + (stop #~(lambda _ (not #$close))) + (respawn? #f)))))) + +(define (device-mapping-service target open close) + "Return a service that maps device @var{target}, a string such as +@code{\"home\"} (meaning @code{/dev/mapper/home}). Evaluate @var{open}, a +gexp, to open it, and evaluate @var{close} to close it." + (service device-mapping-service-type + (list target open close))) + + +;;; ;;; Common device mappings. ;;; |