;;; Copyright (c) 2017 Apple Inc.  All Rights reserved.
;;;
;;; WARNING: The sandbox rules in this file currently constitute
;;; Apple System Private Interface and are subject to change at any time and
;;; without notice.
;;;
(version 1)

(deny default)
(deny file-map-executable iokit-get-properties process-info* nvram*)
(deny dynamic-code-generation)

(import "system.sb")
(import "com.apple.corefoundation.sb")
(corefoundation)

;;; Homedir-relative path filters
(define (home-regex home-relative-regex)
    (regex (string-append "^" (regex-quote (param "HOME")) home-relative-regex)))

(define (home-subpath home-relative-subpath)
    (subpath (string-append (param "HOME") home-relative-subpath)))

(define (home-prefix home-relative-prefix)
    (prefix (string-append (param "HOME") home-relative-prefix)))

(define (home-literal home-relative-literal)
    (literal (string-append (param "HOME") home-relative-literal)))

;; To listen for XPC communication from clients
(allow mach-lookup
    (global-name "com.apple.metrickit.xpc")
    (global-name "com.apple.metrickitsource.xpc")
    (global-name "com.apple.containermanagerd")
    (global-name "com.apple.lsd.mapdb")
    (global-name "com.apple.powerlog.plxpclogger.xpc"))

;; To resolve bundles of clients
(allow process-info-pidinfo)

;; To inform clients that data is available
(allow distributed-notification-post)

;; For resolving symlinks, realpath(3), and equivalents.
(allow file-read-metadata)

;; For validating the entitlements of clients.
(allow process-info-codesignature)

(allow file-write-create
        (literal "/Library/Preferences/com.apple.metrickitd.plist"))

;; Your preference domain
(allow user-preference-read user-preference-write
       (preference-domain "com.apple.metrickitd")
       (preference-domain "kCFPreferencesCurrentUser")
       (preference-domain "kCFPreferencesAnyApplication"))

;; Read/write access to a temporary directory.
(allow file-read* file-write*
       (subpath (param "TMPDIR"))
       (subpath (param "DARWIN_CACHE_DIR"))
       (extension "com.apple.sandbox.container"))
       
;; Read access to executable.
(allow file-read*
       (subpath "/usr/libexec"))

(allow process-info-dirtycontrol (target self))

;; Read/write cache access
(let ((cache-path-filter (home-subpath "/Library/Caches/com.apple.metrickitd")))
  (allow file-read* file-write* cache-path-filter)
  (allow file-issue-extension
    (require-all
      (extension-class "com.apple.app-sandbox.read" "com.apple.app-sandbox.read-write")
      cache-path-filter)))

;; Allow getting SubProductType from MobileGestalt
(with-filter (iokit-registry-entry-class "IOPlatformDevice")
    (allow iokit-get-properties
           (iokit-property "sub-product-type")))