; 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. ---

; Put the denials first.
; crbug.com/799149: These operations are allowed by default.
(if (>= os-version 1013)
  (if (param-true? disable-sandbox-denial-logging)
    (deny iokit-get-properties process-info* nvram* (with no-log))
    (deny iokit-get-properties process-info* nvram*)
))

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

; process-info
(if (>= os-version 1013)
  (begin
    (allow process-info-pidinfo)
    (allow process-info-setcontrol (target self))
))

; File reads.
; Reads from the home directory.
(allow file-read-data
  (path (user-homedir-path "/.CFUserTextEncoding"))
  (path (user-homedir-path "/Library/Preferences/com.apple.universalaccess.plist"))
)

; Reads of /dev devices.
(allow file-read-data
  (path "/dev/autofs_nowait")
  (path "/dev/fd")
)

(allow-cvms-blobs)

(allow file-write-data
  (require-all
    (path "/dev/null")
    (vnode-type CHARACTER-DEVICE)))

; Needed for Fonts.
(allow-font-access)

; Reads from /System.
(allow file-read-data
  (path "/System/Library/CoreServices/CoreTypes.bundle/Contents/Library/AppExceptions.bundle/Exceptions.plist")
  (path "/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/Exceptions.plist")
  (path "/System/Library/Preferences/Logging/Subsystems/com.apple.SkyLight.plist")
  (subpath "/System/Library/ColorSync/Profiles")
  (subpath "/System/Library/CoreServices/SystemAppearance.bundle")
  (subpath "/System/Library/CoreServices/SystemVersion.bundle")
  (subpath "/System/Library/Extensions")  ; https://crbug.com/847518
  (subpath "/System/Library/LinguisticData")
)

; Reads from /Library.
(allow file-read-data
  (subpath "/Library/GPUBundles")  ; https://crbug.com/850021
)

; IOKit
(allow iokit-open
  (iokit-registry-entry-class "IOSurfaceRootUserClient")
  (iokit-registry-entry-class "RootDomainUserClient")
  (iokit-user-client-class "IOSurfaceSendRight")
)

; POSIX IPC
(allow ipc-posix-shm-read-data
  (ipc-posix-name "apple.cfprefs.317580v1")
  (ipc-posix-name "apple.cfprefs.daemonv1")
  (ipc-posix-name "apple.shm.notification_center")  ; https://crbug.com/792217
)

; mach IPC
(allow mach-lookup
  (global-name "com.apple.cvmsServ")  ; https://crbug.com/850021
  (global-name "com.apple.distributed_notifications@Uv3")  ; https://crbug.com/792257
  (global-name "com.apple.lsd.mapdb")
  (global-name "com.apple.system.notification_center")  ; https://crbug.com/792217
)

; IOKit properties.
(if (>= os-version 1013)
  (allow iokit-get-properties
    (iokit-property "CaseSensitive")
    (iokit-property "CoreStorage Encrypted")
    (iokit-property "Ejectable")
    (iokit-property "Encrypted")
    (iokit-property "IOClassNameOverride")
    (iokit-property "IOMediaIcon")
    (iokit-property "Product Identification")
    (iokit-property "Protocol Characteristics")
    (iokit-property "Removable")
    (iokit-property "image-encrypted")
))

; For V8 to use in thread calculations.
(if (>= os-version 1014)
  (begin
    (allow sysctl-read (sysctl-name "kern.tcsm_enable"))
    (allow sysctl-write (sysctl-name "kern.tcsm_enable"))
    (allow sysctl-read (sysctl-name "kern.tcsm_available"))
))

; This is available in 10.15+, and rolled out as a Finch experiment.
(if (param-true? filter-syscalls)
  (when (defined? 'syscall-unix)
    (deny syscall-unix (with send-signal SIGSYS))
    (allow syscall-unix
      (syscall-number SYS_change_fdguard_np)
      (syscall-number SYS_chdir)
      (syscall-number SYS_chmod)
      (syscall-number SYS_csops)
      (syscall-number SYS_csrctl)
      (syscall-number SYS_dup)
      (syscall-number SYS_dup2)
      (syscall-number SYS_fchmod)
      (syscall-number SYS_fcntl_nocancel)
      (syscall-number SYS_fgetxattr)
      (syscall-number SYS_fileport_makefd)
      (syscall-number SYS_fileport_makeport)
      (syscall-number SYS_flock)
      (syscall-number SYS_fsetattrlist)
      (syscall-number SYS_fsgetpath)
      (syscall-number SYS_fsync)
      (syscall-number SYS_ftruncate)
      (syscall-number SYS_getegid)
      (syscall-number SYS_getentropy)
      (syscall-number SYS_getfsstat64)
      (syscall-number SYS_getrusage)
      (syscall-number SYS_getsockopt)
      (syscall-number SYS_gettid)
      (syscall-number SYS_getxattr)
      (syscall-number SYS_guarded_close_np)
      (syscall-number SYS_guarded_open_np)
      (syscall-number SYS_guarded_pwrite_np)
      (syscall-number SYS_kdebug_trace)
      (syscall-number SYS_kdebug_typefilter)
      (syscall-number SYS_listxattr)
      (syscall-number SYS_lseek)
      (syscall-number SYS_memorystatus_control)
      (syscall-number SYS_mkdir)
      (syscall-number SYS_mkdirat)
      (syscall-number SYS_mlock)
      (syscall-number SYS_msync)
      (syscall-number SYS_munlock)
      (syscall-number SYS_necp_client_action)
      (syscall-number SYS_necp_open)
      (syscall-number SYS_openat)
      (syscall-number SYS_openat_nocancel)
      (syscall-number SYS_pathconf)
      (syscall-number SYS_pipe)
      (syscall-number SYS_pread_nocancel)
      (syscall-number SYS_proc_rlimit_control)
      (syscall-number SYS_process_policy)
      (syscall-number SYS_psynch_cvbroad)
      (syscall-number SYS_psynch_cvclrprepost)
      (syscall-number SYS_psynch_cvsignal)
      (syscall-number SYS_psynch_cvwait)
      (syscall-number SYS_psynch_rw_unlock)
      (syscall-number SYS_psynch_rw_wrlock)
      (syscall-number SYS_pwrite)
      (syscall-number SYS_quotactl)
      (syscall-number SYS_recvfrom_nocancel)
      (syscall-number SYS_rename)
      (syscall-number SYS_rmdir)
      (syscall-number SYS_select)
      (syscall-number SYS_select_nocancel)
      (syscall-number SYS_sem_close)
      (syscall-number SYS_sem_open)
      (syscall-number SYS_sem_post)
      (syscall-number SYS_sem_wait)
      (syscall-number SYS_sendmsg_nocancel)
      (syscall-number SYS_sendto)
      (syscall-number SYS_sendto_nocancel)
      (syscall-number SYS_setpriority)
      (syscall-number SYS_setrlimit)
      (syscall-number SYS_setsockopt)
      (syscall-number SYS_shared_region_check_np)
      (syscall-number SYS_shutdown)
      (syscall-number SYS_sigaltstack)
      (syscall-number SYS_umask)
      (syscall-number SYS_unlink)
      (syscall-number SYS_work_interval_ctl)
      (syscall-number SYS_write)
      (syscall-number SYS_write_nocancel)
      (syscall-number SYS_writev)
)))