;;; Copyright (c) 2020-2025 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.
;;;
;;; Note: Based on daemon-template.sb from the sandboxing team.
;;;
(version 1)

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

(deny mach-priv-host-port)

(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)))


(allow process-info* (target self))

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

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

;; Read/write access to a temporary directory.
(allow file-read* file-write*
       (subpath (param "TMPDIR"))
       (subpath (param "DARWIN_CACHE_DIR")))

;; Read/write cache access
(let ((cache-path-filter (home-subpath "/Library/Caches/com.apple.mDNSResponderHelper")))
  (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 file-read* file-write-data file-ioctl
       (regex #"^/dev/bpf[0-9]+$"))

(allow file-read*
       (literal "/Library/Keychains/System.keychain")
       (literal "/private/var/db/mds/system/mds.lock")
       (literal "/private/var/db/mds/system/mdsDirectory.db")
       (literal "/private/var/db/mds/system/mdsObject.db")
       (literal "/usr/sbin"))

(allow file-write*
       (literal "/private/var/db/mds/system/mds.lock"))

(allow iokit-open
       (iokit-user-client-class "RootDomainUserClient"))

(allow ipc-posix-shm-read* ipc-posix-shm-write*
       (ipc-posix-name "com.apple.AppleDatabaseChanged"))

(allow mach-lookup
       (global-name "com.apple.lsd.mapdb"
                    "com.apple.SecurityServer"
                    "com.apple.SystemConfiguration.configd"
                    "com.apple.UNCUserNotification"
                    "com.apple.UNCUserNotification"))

(allow network-outbound
       (remote ip))

(allow system-socket
       (socket-domain AF_INET)
       (socket-domain AF_INET6)
       (socket-domain AF_ROUTE))

;; Allow mDNSResponderHelper to get info about other processes.
(allow process-info-pidinfo)