replace mach_port_t with mach_port_name_t

This is a cleanup following the introduction of mach_port_name_t.
The same set of changes is applied to all files:
- rename mach_port_t to mach_port_name_t where a port name is used,
- use MACH_PORT_NAME_NULL and MACH_PORT_NAME_DEAD where appropriate,
- use invalid_port_to_name() and invalid_name_to_port() for conversion
  where appropriate,
- use regular copyout() insted of copyout_port() when we deal with
  mach_port_name_t already before copyout,
- use the new helper ipc_kmsg_copyout_object_to_port() when we really
  want to place a port name in the space of a mach_port_t.

* include/mach/notify.h: Likewise
* ipc/ipc_entry.c: Likewise
* ipc/ipc_kmsg.c: Likewise
* ipc/ipc_kmsg.h: Likewise, and add ipc_kmsg_copyout_object_to_port()
* ipc/ipc_marequest.c: Likewise
* ipc/ipc_object.c: Likewise
* ipc/ipc_port.c: Likewise
* ipc/ipc_space.h: Likewise
* ipc/mach_msg.c: Likewise
* ipc/mach_port.c: Likewise
* kern/exception.c: Likewise
* kern/ipc_mig.c: Likewise
Message-Id: <20230116105857.240210-8-luca@orpolo.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/ipc/ipc_kmsg.h b/ipc/ipc_kmsg.h
index 16df31f5..b1eb06c7 100644
--- a/ipc/ipc_kmsg.h
+++ b/ipc/ipc_kmsg.h
@@ -269,6 +269,17 @@ extern mach_msg_return_t
 ipc_kmsg_copyout_object(ipc_space_t, ipc_object_t,
 			mach_msg_type_name_t, mach_port_name_t *);
 
+static inline mach_msg_return_t
+ipc_kmsg_copyout_object_to_port(ipc_space_t space, ipc_object_t object,
+                                mach_msg_type_name_t msgt_name, mach_port_t *portp)
+{
+  mach_port_name_t name;;
+  mach_msg_return_t mr;
+  mr = ipc_kmsg_copyout_object(space, object, msgt_name, &name);
+  *portp = (mach_port_t)name;
+  return mr;
+}
+
 extern mach_msg_return_t
 ipc_kmsg_copyout_body(ipc_kmsg_t, ipc_space_t, vm_map_t);