; Copyright (C) 2014-2019 Apple Inc. All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions
; are met:
; 1. Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; 2. Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in the
; documentation and/or other materials provided with the distribution.
;
; THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
; THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
; BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
; CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
; SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
; ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
; THE POSSIBILITY OF SUCH DAMAGE.

(version 1)
(deny default (with partial-symbolication))
(allow system-audit file-read-metadata)

;;;
;;; The following rules were originally contained in 'common.sb'. We are duplicating them here so we can
;;; remove unneeded sandbox extensions.
;;;

(import "util.sb")

(define-once (allow-read-and-issue-generic-extensions . filters)
    (allow file-read*
           (apply require-any filters))
    (allow file-issue-extension
        (require-all
            ;; APP_SANDBOX_READ - default for sandbox_issue_extension() & sandbox_issue_fs_extension().
            (extension-class "com.apple.app-sandbox.read")
            (apply require-any filters))))

(define-once (allow-read-write-and-issue-generic-extensions . filters)
    (allow file-read* file-write*
           (apply require-any filters))
    (allow file-read-metadata
           (apply require-any filters))
    (allow file-issue-extension
        (require-all
            (extension-class "com.apple.app-sandbox.read-write" "com.apple.app-sandbox.read")
            (apply require-any filters))))

(define-once (allow-network-common)
    ;; <rdar://problem/8645367>
    (allow system-socket (require-all (socket-domain AF_SYSTEM) (socket-protocol 2)))
    (allow network-outbound
           (control-name "com.apple.network.statistics")
           (control-name "com.apple.netsrc"))

    (allow sysctl-read
           (sysctl-name "kern.ipc.maxsockbuf")
           (sysctl-name "kern.nisdomainname")
           (sysctl-name-prefix "net.routetable.")
           (sysctl-name "net.statistics"))

    ;; <rdar://problem/10642881>
    (allow file-read*
           (literal "/private/var/preferences/com.apple.networkd.plist"))

    ;; <rdar://problem/27580907>
    (allow file-read*
           (literal "/private/var/Managed Preferences/mobile/com.apple.SystemConfiguration.plist"))

    ;; <rdar://problem/13679154>
    (allow file-read*
           (literal "/private/var/preferences/com.apple.NetworkStatistics.plist"))

    ;; <rdar://problem/15711661>
    (allow mach-lookup
           (global-name "com.apple.nesessionmanager"))

    ;; <rdar://problem/7693463>
    (allow system-socket (socket-domain AF_ROUTE))

    (if gizmo?
        (with-filter
            (require-any
                (require-entitlement "com.apple.security.network.client")
                (require-entitlement "com.apple.security.network.server"))
            (allow network-outbound (literal "/private/var/run/mDNSResponder")))
        (allow network-outbound (literal "/private/var/run/mDNSResponder")))

    ;; <rdar://problem/10962803>
    ;; <rdar://problem/13238730>
    (allow mach-lookup
           (global-name "com.apple.SystemConfiguration.configd")
           (global-name "com.apple.SystemConfiguration.helper")
           (global-name "com.apple.SystemConfiguration.SCNetworkReachability")
           (global-name "com.apple.SystemConfiguration.DNSConfiguration")
           (global-name "com.apple.SystemConfiguration.PPPController")
           (global-name "com.apple.SystemConfiguration.NetworkInformation"))

    ;; <rdar://problem/11792470>
    ;; <rdar://problem/13305819>
    (allow mach-lookup
           (global-name "com.apple.commcenter.xpc")
           (global-name "com.apple.commcenter.cupolicy.xpc"))

    (allow mach-lookup
           (global-name "com.apple.securityd")
           (global-name "com.apple.trustd"))
    (allow file-read*
           (literal "/private/var/preferences/com.apple.security.plist"))

    ;; <rdar://problem/13301795>
    (allow mach-lookup
           (global-name "com.apple.usymptomsd")
           (global-name "com.apple.symptomsd")
           (global-name "com.apple.symptoms.symptomsd.managed_events")) ; <rdar://problem/32768772>

    (with-filter (entitlement-is-present "com.apple.private.networkextension.configuration")
           (allow file-read* (literal "/private/var/preferences/com.apple.networkextension.plist")))

    (with-filter (apple-signed-executable?)
        (allow file-read* (literal "/private/var/preferences/com.apple.networkextension.uuidcache.plist")))

    (allow mach-lookup
           (global-name "com.apple.AppSSO.service-xpc"))
    (allow ipc-posix-shm-read-data
           (ipc-posix-name "/com.apple.AppSSO.version"))

    ;; <rdar://problem/30452093>
    (multipath-tcp))

(define-once (network-client . filters)
    (allow-network-common)

    ;; <rdar://problem/9193431>
    (allow mach-lookup
           (global-name "com.apple.networkd"))

    ;; <rdar://problem/20094008>
    ;; <rdar://problem/24689958>
    (with-filter (require-any
                   (require-entitlement "com.apple.networkd.advisory_socket")
                   (require-entitlement "com.apple.networkd.disable_opportunistic")
                   (require-entitlement "com.apple.networkd.modify_settings")
                   (require-entitlement "com.apple.networkd.persistent_interface")
                   (require-entitlement "com.apple.networkd_privileged"))
        (allow mach-lookup
               (global-name "com.apple.networkd_privileged")))

    ;; <rdar://problem/20201593>
    (with-filter (require-any
                   (apple-signed-executable?)
                   (require-entitlement "com.apple.authkit.client")
                   (require-entitlement "com.apple.authkit.client.private")
                   (require-entitlement "com.apple.authkit.client.internal"))
        (allow mach-lookup
               (global-name "com.apple.ak.anisette.xpc")
               (global-name "com.apple.ak.auth.xpc")))

    ;; <rdar://problem/15897781>
    (allow mach-lookup
           (global-name "com.apple.nsurlsessiond"))
    (allow file-issue-extension
        (require-all
            (executable-bundle)
            (extension-class "com.apple.nsurlsessiond.readonly")))

    ;; <rdar://problem/20617514>
    (when gizmo?
        (allow mach-lookup
            (global-name "com.apple.nsurlsessiond.NSURLSessionProxyService")
            (global-name "com.apple.sharingd.NSURLSessionProxyService")))

    ;; <rdar://problem/15608009>
    (allow mach-lookup
           (global-name "com.apple.nsurlstorage-cache"))

    ;; <rdar://problem/10423007>
    (allow mach-lookup
           (global-name "com.apple.cfnetwork.AuthBrokerAgent")
           (global-name "com.apple.cfnetwork.cfnetworkagent"))

    ;; <rdar://problem/12620714>
    (deny file-write-create (with no-report)
          (home-prefix "/Library/Logs/CrashReporter/CFNetwork_"))

    (allow mach-lookup
           (global-name "com.apple.cookied"))

    ;; <rdar://problem/17910466>
    (allow mach-lookup
           (global-name "com.apple.accountsd.accountmanager"))

    ;; GSS-API
    (allow mach-lookup
           (global-name "com.apple.GSSCred"))

    ;; <rdar://problem/17853959>
    (mobile-keybag-access)

    (allow mach-lookup
           (global-name "com.apple.nehelper"))

    (allow-well-known-system-group-container-literal-read
           "/systemgroup.com.apple.nsurlstoragedresources/Library/dafsaData.bin")

    ;; <rdar://problem/33277999>
    (mobile-preferences-read "com.apple.CFNetwork")

    (if (null? filters)
        (allow network-outbound)
    ; else
        (allow network-outbound (apply require-any filters))))

(define-once (multipath-tcp)
    (allow system-socket (socket-domain 39)))

(define-once (managed-configuration-read-public)
    (allow file-read*
           (well-known-system-group-container-subpath "/systemgroup.com.apple.configurationprofiles/Library/ConfigurationProfiles/PublicInfo")
           (front-user-home-subpath "/Library/ConfigurationProfiles/PublicInfo")
           (front-user-home-subpath "/Library/UserConfigurationProfiles/PublicInfo"))
    (allow mach-lookup
           (global-name "com.apple.managedconfiguration.profiled.public")))

(define-once (allow-preferences-common)
    (allow file-read-metadata
           (home-literal "")
           (home-literal "/Library/Preferences")))

(define-once (mobile-preferences-read . domains)
    (allow-preferences-common)
    (allow user-preference-read (apply preference-domain domains)))

(define-once (mobile-keybag-access)
    (allow iokit-open (with telemetry)
        (iokit-user-client-class "AppleKeyStoreUserClient") ;; Needed by NSURLCache
))

(define-once (debugging-support)
        ;; <rdar://problem/8379706>
        ;; <rdar://problem/12868101>
        ;; <rdar://problem/22766887>
        ;; <rdar://problem/22880365>
        (allow file-read* file-map-executable
               (subpath "/Developer"))

        ;; <rdar://problem/7674121>
        ;; <rdar://problem/9151290>
        (allow ipc-posix-shm
               (ipc-posix-name-regex #"^stack-logs")
               (ipc-posix-name-regex #"^OA-")
               (ipc-posix-name-regex #"^/FSM-"))

        (with-filter (system-attribute apple-internal)
            ;; <rdar://problem/8565035>
            ;; <rdar://problem/23857452>
            (allow file-read* file-map-executable
                   (subpath "/AppleInternal")
                   (subpath "/usr/local/lib")))
            (with-elevated-precedence
                (allow file-read* file-map-executable file-issue-extension
                   (front-user-home-subpath "/XcodeBuiltProducts")))

        ;; <rdar://problem/8107758>
        (allow file-read* file-map-executable
               (subpath "/System/Library/Frameworks")
               (subpath "/System/Library/PrivateFrameworks"))

        ;; <rdar://problem/11455762>
        (allow mach-lookup
               (global-name "com.apple.hangtracerd"))
        ;; <rdar://problem/32544921>
        (mobile-preferences-read "com.apple.hangtracer")

        ;; <rdar://problem/9090627>
        (with-filter (apple-signed-executable?)
          (allow mach-lookup
                 (global-name "com.apple.ReportCrash.SimulateCrash"))))

(define-once (logd-diagnostic-paths)
    (require-any
        (subpath "/private/var/db/diagnostics")
        (subpath "/private/var/db/timesync")
        (subpath "/private/var/db/uuidtext")
        (subpath "/private/var/userdata/diagnostics")))
(define-once (logd-diagnostic-client)
    (with-filter
        (require-all
            (require-any
                (require-entitlement "com.apple.private.logging.diagnostic")
                (require-entitlement "com.apple.diagnosticd.diagnostic"))
            (extension "com.apple.logd.read-only"))
        (allow file-read*
               (logd-diagnostic-paths))))

(define required-etc-files
  (literal "/private/etc/fstab"
           "/private/etc/hosts"
           "/private/etc/group"
           "/private/etc/passwd"
           "/private/etc/protocols"
           "/private/etc/services"))

(define-once (allow-multi-instance-xpc-services)
    ;; <rdar://problem/46716068>
    (allow mach-lookup
           (with telemetry)
           (with message "Create a radar and set it as a blocker to rdar://problem/48527566")
           (xpc-service-name "com.apple.WebKit.Networking"
                             "com.apple.WebKit.WebContent")
))

(allow sysctl-read
   (sysctl-name "kern.bootsessionuuid"))

(deny file-map-executable)
(deny file-write-mount file-write-unmount)
(allow file-read-metadata
    (vnode-type DIRECTORY))

(mobile-preferences-read "com.apple.security")

(with-elevated-precedence
    ;; System files.
    (allow file-read*
        (subpath "/usr/lib"
                 "/usr/share"
                 "/private/var/db/timezone"))
    (allow-read-and-issue-generic-extensions
         (subpath "/Library/RegionFeatures"
                  "/System/Library"))
    
    (allow file-map-executable
        (subpath "/System/Library")
        (subpath "/usr/lib"))

    (allow file-read-metadata
        (vnode-type SYMLINK))

    (allow file-read*
        (subpath "/private/var/preferences/Logging"))

    (mobile-preferences-read "kCFPreferencesAnyApplication")
    (allow file-read*
        (front-user-home-literal "/Library/Preferences/.GlobalPreferences.plist"))

    (allow file-read*
           (literal "/private/var/Managed Preferences/mobile/.GlobalPreferences.plist"))
    (allow managed-preference-read (preference-domain "kCFPreferencesAnyApplication"))

    (allow file-read-metadata
        (home-literal "/Library/Caches/powerlog.launchd"))

    (allow-read-and-issue-generic-extensions (executable-bundle))
    (allow file-map-executable (executable-bundle))

    (deny file-read-data file-issue-extension file-map-executable
        (require-all
            (executable-bundle)
            (regex #"/[^/]+/SC_Info/")))

    (with-filter (global-name-prefix "")
        (allow mach-lookup
               (extension "com.apple.security.exception.mach-lookup.global-name"))
        (allow mach-register
               (extension "com.apple.security.exception.mach-register.global-name")))
    (with-filter (local-name-prefix "")
        (allow mach-lookup
               (extension "com.apple.security.exception.mach-lookup.local-name"))
        (allow mach-register
               (extension "com.apple.security.exception.mach-register.local-name")))
    (allow-read-and-issue-generic-extensions
           (extension "com.apple.security.exception.files.absolute-path.read-only")
           (extension "com.apple.security.exception.files.home-relative-path.read-only"))
    (allow-read-write-and-issue-generic-extensions
           (extension "com.apple.security.exception.files.absolute-path.read-write")
           (extension "com.apple.security.exception.files.home-relative-path.read-write"))
    (allow iokit-open
           (extension "com.apple.security.exception.iokit-user-client-class"))
    (allow managed-preference-read
           (extension "com.apple.security.exception.managed-preference.read-only"))
    (allow user-preference-read
           (extension "com.apple.security.exception.shared-preference.read-only"))
    (allow user-preference-read user-preference-write
           (extension "com.apple.security.exception.shared-preference.read-write"))
    (allow sysctl-read
           (extension "com.apple.security.exception.sysctl.read-only"))
    (allow sysctl-read sysctl-write
           (extension "com.apple.security.exception.sysctl.read-write"))

    (allow file-issue-extension
          (require-all
              (extension-class "com.apple.nsurlstorage.extension-cache")
              (extension "com.apple.security.exception.files.home-relative-path.read-write")
              (require-any
                  (prefix "/private/var/root/Library/Caches/")
                  (front-user-home-prefix "/Library/Caches/"))))

    (with-filter (require-entitlement "com.apple.security.exception.process-info")
        (allow process-info-pidinfo process-info-pidfdinfo process-info-pidfileportinfo process-info-rusage process-info-codesignature)
        (allow sysctl-read
               (sysctl-name-prefix "kern.proc.")
               (sysctl-name-prefix "kern.procargs2."))))

(debugging-support)

(allow file-read*
    required-etc-files
    (literal "/"))

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.logd")
    (global-name "com.apple.logd.events"))

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.cfprefsd.agent")
    (local-name "com.apple.cfprefsd.agent")
)

(allow mach-lookup (with telemetry)
    (global-name "com.apple.cfprefsd.daemon") ;; Needed by _CFPreferencesGetAppBooleanValueWithContainer and others.
)

(allow ipc-posix-shm-read*
    (ipc-posix-name-prefix "apple.cfprefs."))

(allow mach-lookup (with telemetry)
    (global-name "com.apple.runningboard")) ;; Needed by process assertion code (ProcessTaskStateObserver).

(allow-multi-instance-xpc-services)

(allow system-sched
    (require-entitlement "com.apple.private.kernel.override-cpumon"))

(allow sysctl-read (with report) (with telemetry)
    (sysctl-name "hw.busfrequency")
    (sysctl-name "hw.busfrequency_compat")
    (sysctl-name "hw.byteorder")
    (sysctl-name "hw.cachelinesize")
    (sysctl-name "hw.cachelinesize_compat")
    (sysctl-name "hw.cpu64bit_capable")
    (sysctl-name "hw.cpufamily")
    (sysctl-name "hw.cpufrequency")
    (sysctl-name "hw.cpufrequency_compat")
    (sysctl-name "hw.cpufrequency_max")
    (sysctl-name "hw.cpusubtype")
    (sysctl-name "hw.cputype")
    (sysctl-name "hw.l1dcachesize")
    (sysctl-name "hw.l1dcachesize_compat")
    (sysctl-name "hw.l1icachesize")
    (sysctl-name "hw.l1icachesize_compat")
    (sysctl-name "hw.l2cachesize")
    (sysctl-name "hw.l2cachesize_compat")
    (sysctl-name "hw.l2settings")
    (sysctl-name "hw.l3cachesize")
    (sysctl-name "hw.l3cachesize_compat")
    (sysctl-name "hw.l3settings")
    (sysctl-name "hw.logicalcpu")
    (sysctl-name "hw.logicalcpu_max")
    (sysctl-name "hw.memsize")
    (sysctl-name "hw.pagesize")
    (sysctl-name "hw.physicalcpu")
    (sysctl-name "hw.physicalcpu_max")
    (sysctl-name "hw.physmem")
    (sysctl-name "hw.tbfrequency")
    (sysctl-name "hw.tbfrequency_compat")
    (sysctl-name "hw.usermem")
    (sysctl-name "hw.vectorunit")
    (sysctl-name "kern.boottime")
    (sysctl-name "kern.clockrate")
    (sysctl-name "kern.development")
    (sysctl-name "kern.hostid")
    (sysctl-name "kern.hostname")
    (sysctl-name "kern.maxproc")
    (sysctl-name "kern.maxvnodes")
    (sysctl-name-prefix "kern.monotonicclock")
    (sysctl-name "kern.monotoniclock_offset_usecs")
    (sysctl-name "kern.ngroups")
    (sysctl-name "kern.osrelease")
    (sysctl-name "kern.ostype")
    (sysctl-name "kern.osversion")
    (sysctl-name "kern.saved_ids")
    (sysctl-name "kern.usrstack")
    (sysctl-name "kern.usrstack64")
    (sysctl-name "kern.version")
    (sysctl-name "kern.waketime")
    (sysctl-name "security.mac.sandbox.sentinel")
    (sysctl-name "sysctl.name2oid")
    (sysctl-name "vm.loadavg")
    (sysctl-name-prefix "kern.argmax")
    (sysctl-name-prefix "kern.proc.pid.")
)

(with-filter (system-attribute apple-internal)
    (allow sysctl-read
           (sysctl-name "kern.dtrace.dof_mode"))
    (allow sysctl-read sysctl-write
           (sysctl-name "vm.footprint_suspend")))

(allow mach-lookup (with report) (with telemetry)
       (global-name "com.apple.system.logger"))
(allow file-read-metadata network-outbound  (with report) (with telemetry)
       (literal "/private/var/run/syslog"))

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.system.notification_center"))
(allow ipc-posix-shm-read*  (with telemetry)
    (ipc-posix-name "apple.shm.notification_center")) ;; Needed by os_log_create

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.distributed_notifications@1v3"))

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.diagnosticd"))

(logd-diagnostic-client)

(managed-configuration-read-public)

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.ctkd.token-client"))

(deny system-info (with no-report)
    (info-type "net.link.addr"))

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.system.libinfo.muser"))

(allow mach-task-name (target self))

(allow process-info-pidinfo (target self))
(allow process-info-pidfdinfo (target self))
(allow process-info-pidfileportinfo (target self))
(allow process-info-setcontrol (target self))
(allow process-info-dirtycontrol (target self))
(allow process-info-rusage (target self))
(allow process-info-codesignature (target self))

(allow mach-lookup (with report) (with telemetry)
    (global-name "com.apple.analyticsd"))

;;;
;;; End rules originally copied from 'common.sb'
;;;

(deny mach-lookup (xpc-service-name-prefix ""))

(deny lsopen)

(deny sysctl*)
(allow sysctl-read
    (sysctl-name
        "hw.activecpu" ;; Needed by JSC engine.
        "hw.availcpu"
        "hw.ncpu"
        "hw.machine" ;; Needed by CFNetwork (CFURLProtocols)
        "hw.model" ;; Needed for bundle loading
        "hw.pagesize_compat" ;; Needed by bmalloc
        "kern.bootargs"  ;; Needed for bundle loading
        "kern.maxfilesperproc"
        "kern.memorystatus_level"
        "kern.osproductversion" ;; Needed by CFNetwork (HSTS store and others)"
        "kern.osvariant_status" ;; Needed for bundle loading
        "kern.secure_kernel" ;; Needed by XPC bundle resolution
        "kern.tcsm_available" ;; Needed for IndexedDB support.
        "vm.footprint_suspend")
    (sysctl-name-regex #"^net.routetable")
)

;; Access to client's cache folder & re-vending to CFNetwork.
;; FIXME: Remove the webkit specific extension classes <rdar://problem/17755931>
(allow file-issue-extension (require-all
    (extension "com.apple.app-sandbox.read-write")
    (extension-class "com.apple.nsurlstorage.extension-cache")))

;; App sandbox extensions
(allow file-read* file-write* (extension "com.apple.app-sandbox.read-write"))
(allow file-read* (extension "com.apple.app-sandbox.read"))

;; FIXME: <rdar://problem/17909681> SSO expects to be able to walk the parent
;; bundle to find Info plists, so we jump through a few hoops here to provide
;; enough access to make it possible.

;; IOKit user clients
(allow iokit-open
       (iokit-user-client-class "RootDomainUserClient") ;; Needed by PowerObserver
)

;; Various services required by CFNetwork and other frameworks
(allow mach-lookup
       (global-name "com.apple.PowerManagement.control"))

(network-client (remote tcp) (remote udp))

;; allow 3rd party applications to access nsurlstoraged's top level domain data cache
(allow-well-known-system-group-container-subpath-read
    "/systemgroup.com.apple.nsurlstoragedresources/Library/dafsaData.bin")

(allow file-read-data
    (literal "/usr/local/lib/log") ; <rdar://problem/36629495>
)

;; Security framework
(allow mach-lookup
    (global-name "com.apple.ocspd")
    (global-name "com.apple.securityd"))

;; PassKit framework
(allow mach-lookup
    (global-name "com.apple.passd.in-app-payment")
    (global-name "com.apple.passd.library"))

(allow mach-lookup
    (global-name "com.apple.FileCoordination")
    (global-name "com.apple.dmd.policy")
    (global-name "com.apple.siri.context.service")
    (global-name "com.apple.ctcategories.service"))

(deny file-write-create
       (vnode-type SYMLINK))

;; FIXME should be removed when <rdar://problem/30498072> is fixed.
(allow network*
    (local udp)
    (remote udp)
    (local tcp)
    (remote tcp))

;; Various services required by system frameworks
(allow mach-lookup
    (global-name "com.apple.lsd.mapdb")
    (global-name "com.apple.analyticsd")
    (global-name "com.apple.AppSSO.service-xpc"))

;; For reporting progress for active downloads <rdar://problem/44405661>
(allow mach-lookup
    (global-name "com.apple.ProgressReporting"))

 ;; <rdar://problem/47598758>
(allow mach-lookup
    (global-name "com.apple.nesessionmanager.content-filter"))

;; Various shared memory accesses required by system frameworks
(allow ipc-posix-shm-read-data
    (ipc-posix-name "/com.apple.AppSSO.version"))

;; Access to ContainerManager
(allow mach-lookup
    (global-name "com.apple.containermanagerd"))
(allow ipc-posix-sem-open
    (ipc-posix-name "containermanagerd.fb_check"))

(allow file-read*
    (literal "/dev/random")
    (literal "/dev/urandom"))

;; Access to MobileGestalt
(allow mach-lookup
    (global-name "com.apple.mobilegestalt.xpc"))
(allow file-read*
    (well-known-system-group-container-literal "/systemgroup.com.apple.mobilegestaltcache/Library/Caches/com.apple.MobileGestalt.plist"))
(allow iokit-get-properties
    (iokit-property "IORegistryEntryPropertyKeys"))