Source/WebKit2/WebProcess/com.apple.WebProcess.sb.in

; Copyright (C) 2010, 2011, 2012, 2013, 2014 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)

(import "system.sb")

;; Utility functions for home directory relative path filters
(define (home-regex home-relative-regex)
  (regex (string-append "^" (regex-quote (param "HOME_DIR")) home-relative-regex)))

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

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

(define (allow-read-directory-and-issue-read-extensions path)
    (if path
        (begin
            (allow file-read* (subpath path))
            (allow file-issue-extension (require-all (extension-class "com.apple.app-sandbox.read") (subpath path))))))

;; Read-only preferences and data
(allow file-read*
       ;; Basic system paths
       (subpath "/Library/Dictionaries")
       (subpath "/Library/Fonts")
       (subpath "/Library/Frameworks")
       (subpath "/Library/Managed Preferences")
       (subpath "/Library/Speech/Synthesizers")
       (regex #"^/private/etc/(hosts|group|passwd)$")

       (literal "/Library/Application Support/CrashReporter/SubmitDiagInfo.domains")

       ;; System and user preferences
       (literal "/Library/Preferences/.GlobalPreferences.plist")
       (home-literal "/Library/Preferences/.GlobalPreferences.plist")
       (home-regex #"/Library/Preferences/ByHost/\.GlobalPreferences\.")
       (home-regex #"/Library/Preferences/ByHost/com\.apple\.HIToolbox\.")
       (home-regex #"/Library/Preferences/ByHost/com\.apple\.networkConnect\.")
       (home-literal "/Library/Preferences/com.apple.ATS.plist")
       (home-literal "/Library/Preferences/com.apple.CoreGraphics.plist")
       (home-literal "/Library/Preferences/com.apple.DownloadAssessment.plist")
       (home-literal "/Library/Preferences/com.apple.HIToolbox.plist")
       (home-literal "/Library/Preferences/com.apple.LaunchServices.plist")
       (home-literal "/Library/Preferences/com.apple.MultitouchSupport.plist") ;; FIXME: Remove when <rdar://problem/13011633> is fixed.
       (home-literal "/Library/Preferences/com.apple.QTKit.plist")
       (home-literal "/Library/Preferences/com.apple.WebFoundation.plist")
       (home-literal "/Library/Preferences/com.apple.avfoundation.plist")
       (home-literal "/Library/Preferences/com.apple.coremedia.plist")
       (home-literal "/Library/Preferences/com.apple.speech.voice.prefs.plist")
       (home-literal "/Library/Preferences/com.apple.systemsound.plist")
       (home-literal "/Library/Preferences/com.apple.universalaccess.plist")
       (home-literal "/Library/Preferences/com.apple.lookup.shared.plist")
       (home-regex #"/Library/Preferences/com\.apple\.driver\.(AppleBluetoothMultitouch\.mouse|AppleBluetoothMultitouch\.trackpad|AppleHIDMouse)\.plist$")
       (home-literal "/.CFUserTextEncoding")

       ;; FIXME: This should be removed when <rdar://problem/8957845> is fixed.
       (home-subpath "/Library/Fonts")

       ;; FIXME: These should be removed when <rdar://problem/9217757> is fixed.
       (home-subpath "/Library/Audio/Plug-Ins/Components")
       (home-subpath "/Library/Preferences/QuickTime Preferences")
       (home-literal "/Library/Caches/com.apple.coreaudio.components.plist")
       (subpath "/Library/Audio/Plug-Ins/Components")
       (subpath "/Library/Audio/Plug-Ins/HAL")
       (subpath "/Library/Video/Plug-Ins")
       (subpath "/Library/QuickTime")

       (home-subpath "/Library/Dictionaries"))

;; On-disk WebKit2 framework location, to account for debug installations outside of /System/Library/Frameworks,
;; and to allow issuing extensions.
(allow-read-directory-and-issue-read-extensions (param "WEBKIT2_FRAMEWORK_DIR"))

;; Allow issuing extensions to system libraries that the Network process can already read.
;; This is to avoid warnings attempting to create extensions for these resources.
(allow-read-directory-and-issue-read-extensions "/System/Library/PrivateFrameworks/WebInspectorUI.framework")

;; Sandbox extensions
(define (apply-read-and-issue-extension op path-filter)
    (op file-read* path-filter)
    (op file-issue-extension (require-all (extension-class "com.apple.app-sandbox.read") path-filter)))
(define (apply-write-and-issue-extension op path-filter)
    (op file-write* path-filter)
    (op file-issue-extension (require-all (extension-class "com.apple.app-sandbox.read-write") path-filter)))
(define (read-only-and-issue-extensions path-filter)
    (apply-read-and-issue-extension allow path-filter))
(define (read-write-and-issue-extensions path-filter)
    (apply-read-and-issue-extension allow path-filter)
    (apply-write-and-issue-extension allow path-filter))
(read-only-and-issue-extensions (extension "com.apple.app-sandbox.read"))
(read-write-and-issue-extensions (extension "com.apple.app-sandbox.read-write"))
(allow mach-lookup (extension "com.apple.app-sandbox.mach")) ;; FIXME: Should be removed when <rdar://problem/13066206> is fixed.

;; Allow the OpenGL Profiler to attach.
(if (defined? 'mach-register)
    (allow mach-register (global-name-regex #"^_oglprof_attach_<[0-9]+>$")))

;; MediaAccessibility
(allow file-read* (home-literal "/Library/Preferences/com.apple.mediaaccessibility.plist"))
(allow file-read* file-write* (home-literal "/Library/Preferences/com.apple.mediaaccessibility.public.plist"))

(if (positive? (string-length (param "DARWIN_USER_CACHE_DIR")))
    (allow file* (subpath (param "DARWIN_USER_CACHE_DIR"))))

(if (positive? (string-length (param "DARWIN_USER_TEMP_DIR")))
    (allow file* (subpath (param "DARWIN_USER_TEMP_DIR"))))

;; IOKit user clients
(allow iokit-open
       (iokit-user-client-class "AppleUpstreamUserClient")
       (iokit-user-client-class "IOHIDParamUserClient")
       (iokit-user-client-class "RootDomainUserClient")
       (iokit-user-client-class "IOAudioControlUserClient")
       (iokit-user-client-class "IOAudioEngineUserClient"))

;; cookied.
;; FIXME: Update for <rdar://problem/13642852>.
(allow ipc-posix-shm-read-data
    (ipc-posix-name "FNetwork.defaultStorageSession")
    (ipc-posix-name-regex #"\.PrivateBrowsing-")
    (ipc-posix-name-regex #"^WebKit Test-"))

;; ColorSync
;; FIXME: Remove names with underscores when possible (see <rdar://problem/13072721>).
(allow ipc-posix-shm*
    (ipc-posix-name "_CS_GSHMEMLOCK")
    (ipc-posix-name "_CS_DSHMEMLOCK")
    (ipc-posix-name "_CSGRAYPROFILE")
    (ipc-posix-name "_CSRGBPROFILE")
    (ipc-posix-name "_CSGENGPROFILE")
    (ipc-posix-name "_CSGENRPROFILE")
    (ipc-posix-name "com.apple.ColorSync.Gen.lock")
    (ipc-posix-name "com.apple.ColorSync.Disp.lock")
    (ipc-posix-name "com.apple.ColorSync.Gray2.2")
    (ipc-posix-name "com.apple.ColorSync.sRGB")
    (ipc-posix-name "com.apple.ColorSync.GenGray")
    (ipc-posix-name "com.apple.ColorSync.GenRGB"))

;; Audio
(allow ipc-posix-shm-read* ipc-posix-shm-write-data
    (ipc-posix-name-regex #"^AudioIO"))

;; Remote Web Inspector
(allow mach-lookup
       (global-name "com.apple.webinspector"))

;; Various services required by AppKit and other frameworks
(allow mach-lookup
       (global-name "com.apple.DiskArbitration.diskarbitrationd")
       (global-name "com.apple.FileCoordination")
       (global-name "com.apple.FontObjectsServer")
       (global-name "com.apple.FontServer")
       (global-name "com.apple.SystemConfiguration.configd")
       (global-name "com.apple.SystemConfiguration.PPPController")
       (global-name "com.apple.audio.SystemSoundServer-OSX")
       (global-name "com.apple.audio.VDCAssistant")
       (global-name "com.apple.audio.audiohald")
       (global-name "com.apple.audio.coreaudiod")
       (global-name "com.apple.awdd")
       (global-name "com.apple.cookied")
       (global-name "com.apple.dock.server")
       (global-name "com.apple.fonts")
       (global-name "com.apple.system.opendirectoryd.api")
       (global-name "com.apple.tccd")
       (global-name "com.apple.tccd.system")
       (global-name "com.apple.window_proxies")
       (global-name "com.apple.windowserver.active")
       (global-name "com.apple.cfnetwork.AuthBrokerAgent")
       (global-name "com.apple.PowerManagement.control")
       (global-name "com.apple.speech.speechsynthesisd")
       (global-name "com.apple.speech.synthesis.console")
       (global-name "com.apple.coreservices.launchservicesd")
       (global-name "com.apple.iconservices")
       (global-name "com.apple.iconservices.store")
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101100
       (global-name "com.apple.nesessionmanager.flow-divert-token")
#endif
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200
       (global-name "com.apple.mediaremoted.xpc")
#endif
)

;; Security framework
(allow mach-lookup
       (global-name "com.apple.ctkd.token-client") 
       (global-name "com.apple.ocspd")
       (global-name "com.apple.securityd.xpc") 
       (global-name "com.apple.CoreAuthentication.agent.libxpc")
       (global-name "com.apple.SecurityServer"))
(allow file-read* file-write* (home-subpath "/Library/Keychains")) ;; FIXME: This should be removed when <rdar://problem/10479685> is fixed.
(allow file-read* file-write* (subpath "/private/var/db/mds/system")) ;; FIXME: This should be removed when <rdar://problem/9538414> is fixed.
(allow file-read*
       (subpath "/Library/Keychains")
       (subpath "/private/var/db/mds")
       (literal "/private/var/db/DetachedSignatures")
       (literal "/Library/Preferences/com.apple.crypto.plist")
       (literal "/Library/Preferences/com.apple.security.plist")
       (literal "/Library/Preferences/com.apple.security.common.plist")
       (literal "/Library/Preferences/com.apple.security.revocation.plist")
       (home-literal "/Library/Application Support/SyncServices/Local/ClientsWithChanges/com.apple.Keychain")
       (home-literal "/Library/Preferences/com.apple.security.plist")
       (home-literal "/Library/Preferences/com.apple.security.revocation.plist"))
(allow ipc-posix-shm-read* ipc-posix-shm-write-data
       (ipc-posix-name "com.apple.AppleDatabaseChanged"))

;; CoreFoundation. We don't import com.apple.corefoundation.sb, because it allows unnecessary access to pasteboard.
(allow mach-lookup
    (global-name-regex #"^com.apple.distributed_notifications")                                                       
    (global-name "com.apple.CoreServices.coreservicesd"))
(allow file-read-data
    (literal "/dev/autofs_nowait")) ; Used by CF to circumvent automount triggers
(allow ipc-posix-shm
    (ipc-posix-name-regex #"^CFPBS:")) ; <rdar://problem/13757475>
(allow system-fsctl (fsctl-command (_IO "h" 47)))

;; Graphics
(system-graphics)

;; Networking
(system-network)
(allow network-outbound
       ;; Local mDNSResponder for DNS, arbitrary outbound TCP
       (literal "/private/var/run/mDNSResponder")
       (remote tcp))

;; Needed for NSAttributedString, <rdar://problem/10844321>.
(allow file-read*
       (home-literal "/Library/Preferences/pbs.plist")
       (home-literal "/Library/Preferences/com.apple.ServicesMenu.Services.plist"))
(allow mach-lookup
       (global-name "com.apple.pbs.fetch_services"))

;; FIXME should be removed when <rdar://problem/9347205> + related radar in Safari is fixed
(allow mach-lookup
       (global-name "org.h5l.kcm")
       (global-name "com.apple.GSSCred")
       (global-name "com.apple.system.logger")
       (global-name "com.apple.system.notification_center"))
(allow network-outbound
       (remote udp))
(allow file-read*
        (home-subpath "/Library/Preferences/com.apple.Kerberos.plist")
        (home-subpath "/Library/Preferences/com.apple.GSS.plist")
        (home-subpath "/Library/Preferences/edu.mit.Kerberos")
        (literal "/Library/Preferences/com.apple.Kerberos.plist")
        (literal "/Library/Preferences/com.apple.GSS.plist")
        (literal "/Library/Preferences/edu.mit.Kerberos")
        (literal "/private/etc/krb5.conf")
        (literal "/private/etc/services")
        (literal "/private/etc/host")
        (subpath "/Library/KerberosPlugins/GSSAPI")
        (subpath "/Library/KerberosPlugins/KerberosFrameworkPlugins"))

(if (defined? 'vnode-type)
        (deny file-write-create (vnode-type SYMLINK)))

;; FIXME: Should be removed once <rdar://problem/16329087> is fixed.
(deny file-write-xattr (xattr "com.apple.quarantine") (with no-log))

;; Reserve a namespace for additional protected extended attributes.
(deny file-read-xattr file-write-xattr (xattr-regex #"^com\.apple\.security\.private\."))

(deny file-read* file-write* (with no-log)
       ;; FIXME: Should be removed after <rdar://problem/10463881> is fixed.
       (home-literal "/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV2")
       (home-literal "/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV2-journal"))

;; Deny access needed for unnecessary NSApplication initialization.
;; FIXME: This can be removed once <rdar://problem/13011633> is fixed.
(deny file-read* (with no-log)
       (home-literal "/Library/Preferences/com.apple.speech.recognition.AppleSpeechRecognition.prefs.plist")
       (subpath "/Library/InputManagers")
       (home-subpath "/Library/InputManagers"))
(deny mach-lookup (with no-log)
       (global-name "com.apple.coreservices.appleevents")
       (global-name "com.apple.pasteboard.1")
       (global-name "com.apple.speech.recognitionserver"))
;; Also part of unnecessary NSApplication initialization, but we can't block access to these yet, see <rdar://problem/13869765>.
(allow file-read*
       (subpath "/Library/Components")
       (subpath "/Library/Keyboard Layouts")
       (subpath "/Library/Input Methods")
       (home-subpath "/Library/Components")
       (home-subpath "/Library/Keyboard Layouts")
       (home-subpath "/Library/Input Methods"))

;; AirPlay
(allow mach-lookup
    (global-name "com.apple.coremedia.endpoint.xpc")
    (global-name "com.apple.coremedia.endpointstream.xpc")
    (global-name "com.apple.coremedia.endpointplaybacksession.xpc")
    (global-name "com.apple.coremedia.endpointpicker.xpc"))

;; Data Detectors
(allow file-read* (subpath "/private/var/db/datadetectors/sys"))