services/service_manager/sandbox/mac/gpu_v2.sb

; Copyright 2017 The Chromium Authors. All rights reserved.
; Use of this source code is governed by a BSD-style license that can be
; found in the LICENSE file.

; --- The contents of common.sb implicitly included here. ---

; Allow cf prefs to work.
(allow user-preference-read)

(allow-cvms-blobs)

(allow ipc-posix-shm)

; Allow communication between the GPU process and the UI server.
(allow mach-lookup
  (global-name "com.apple.cfprefsd.agent")
  (global-name "com.apple.cfprefsd.daemon")
  (global-name "com.apple.CoreServices.coreservicesd")
  (global-name "com.apple.coreservices.launchservicesd")
  (global-name "com.apple.cvmsServ")
  (global-name "com.apple.gpumemd.source")
  (global-name "com.apple.lsd.mapdb")
  (global-name "com.apple.lsd.modifydb")
  (global-name "com.apple.powerlog.plxpclogger.xpc")
  (global-name "com.apple.PowerManagement.control")
  (global-name "com.apple.SecurityServer")
  (global-name "com.apple.system.notification_center")
  (global-name "com.apple.tsm.uiserver")
  (global-name "com.apple.windowserver.active")
)

; Needed for metal decoding - https://crbug.com/957217
(if (>= os-version 1014)
  (allow mach-lookup (xpc-service-name "com.apple.MTLCompilerService"))
)

; Needed for WebGL - https://crbug.com/75343
(allow iokit-open
  (iokit-connection "IOAccelerator")
  (iokit-user-client-class "AGPMClient")
  (iokit-user-client-class "AppleGraphicsControlClient")
  (iokit-user-client-class "AppleGraphicsPolicyClient")
  (iokit-user-client-class "AppleIntelMEUserClient")
  (iokit-user-client-class "AppleMGPUPowerControlClient")
  (iokit-user-client-class "AppleSNBFBUserClient")
  (iokit-user-client-class "IOAccelerationUserClient")
  (iokit-user-client-class "IOFramebufferSharedUserClient")
  (iokit-user-client-class "IOHIDParamUserClient")
  (iokit-user-client-class "IOSurfaceRootUserClient")
  (iokit-user-client-class "IOSurfaceSendRight")
  (iokit-user-client-class "RootDomainUserClient")
)

(allow iokit-set-properties
  (require-all (iokit-connection "IODisplay")
    (require-any (iokit-property "brightness")
      (iokit-property "linear-brightness")
      (iokit-property "commit")
      (iokit-property "rgcs")
      (iokit-property "ggcs")
      (iokit-property "bgcs")
)))

(allow ipc-posix-shm-read-data
  (ipc-posix-name "apple.shm.notification_center"))

; https://crbug.com/515280
(if (>= os-version 1011)
  (allow file-read* (subpath "/System/Library/Extensions")))

; Needed for VideoToolbox usage - https://crbug.com/767037
(if (>= os-version 1013)
  (allow mach-lookup
    (xpc-service-name "com.apple.coremedia.videodecoder")
    (xpc-service-name "com.apple.coremedia.videoencoder")
    (xpc-service-name-regex #"\.apple-extension-service$")
))

(allow sysctl-read
  (sysctl-name "hw.logicalcpu_max")
  (sysctl-name "hw.model")
  (sysctl-name "kern.osvariant_status")
)

(allow file-read-data
  (path "/Library/MessageTracer/SubmitDiagInfo.default.domains.searchtree")
  (regex (user-homedir-path #"/Library/Preferences/ByHost/com.apple.AppleGVA.*"))
)

(allow file-read*
  (subpath "/Library/GPUBundles")
  (subpath "/Library/Video/Plug-Ins")
  (subpath "/System/Library/Video/Plug-Ins")
)

; crbug.com/980134
(allow file-read* file-write*
  (subpath (param darwin-user-cache-dir))
)

(if (param-true? filter-syscalls)
  (when (defined? 'syscall-unix)
    (deny syscall-unix (with send-signal SIGSYS))
    (allow syscall-unix
      (syscall-number SYS_csrctl)
      (syscall-number SYS_getentropy)
      (syscall-number SYS_getxattr)
      (syscall-number SYS_kdebug_typefilter)
      (syscall-number SYS_sigaltstack)
      (syscall-number SYS_write)
      (syscall-number SYS_write_nocancel)
)))