little-snitch-rules/rules/iCloudSync.lsrules

{
  "description" : "",
  "name" : "iCloud Sync",
  "rules" : [
    {
      "action" : "allow",
      "disabled" : true,
      "ports" : "443",
      "process" : "\/System\/Library\/PrivateFrameworks\/CloudServices.framework\/Helpers\/com.apple.sbd",
      "protocol" : "tcp",
      "remote-hosts" : "p129-escrowproxy.icloud.com"
    },
    {
      "action" : "allow",
      "ports" : "443",
      "process" : "\/System\/Library\/PrivateFrameworks\/CalendarAgent.framework\/Executables\/CalendarAgent",
      "protocol" : "tcp",
      "remote-hosts" : "calendars.icloud.com"
    },
    {
      "action" : "allow",
      "ports" : "443",
      "process" : "\/System\/Library\/PrivateFrameworks\/CalendarAgent.framework\/Executables\/CalendarAgent",
      "protocol" : "tcp",
      "remote-hosts" : "p129-caldav.icloud.com"
    },
    {
      "action" : "allow",
      "disabled" : true,
      "ports" : "443",
      "process" : "\/System\/Library\/PrivateFrameworks\/CloudPhotoLibrary.framework\/Versions\/A\/Support\/cloudphotod",
      "protocol" : "tcp",
      "remote-hosts" : "configuration.apple.com"
    },
    {
      "action" : "allow",
      "disabled" : true,
      "ports" : "443",
      "process" : "\/System\/Library\/PrivateFrameworks\/PhotoLibraryServices.framework\/Versions\/A\/Support\/photolibraryd",
      "protocol" : "tcp",
      "remote-hosts" : "p35-availability.icloud.com"
    },
    {
      "action" : "allow",
      "ports" : "443",
      "process" : "\/System\/Library\/PrivateFrameworks\/CloudKitDaemon.framework\/Support\/cloudd",
      "protocol" : "tcp",
      "remote-hosts" : "gateway.icloud.com"
    },
    {
      "action" : "allow",
      "ports" : "443",
      "process" : "\/System\/Library\/PrivateFrameworks\/CloudKitDaemon.framework\/Support\/cloudd",
      "protocol" : "tcp",
      "remote-hosts" : "setup.icloud.com"
    },
    {
      "action" : "allow",
      "ports" : "443",
      "process" : "\/System\/Library\/Frameworks\/AddressBook.framework\/Versions\/A\/Helpers\/AddressBookSourceSync.app\/Contents\/MacOS\/AddressBookSourceSync",
      "protocol" : "tcp",
      "remote-hosts" : "p129-contacts.icloud.com"
    }
  ]
}