From a8d611bdbf48906010c6cde67eb6ff720e715cf0 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Mon, 25 Nov 2013 01:27:14 +0100
Subject: include: define MACH_MSG_TYPE_PROTECTED_PAYLOAD

* include/mach/message.h: Define MACH_MSG_TYPE_PROTECTED_PAYLOAD.
(MACH_MSG_TYPE_LAST): Adjust accordingly.
* doc/mach.texi (Message Format): Document
MACH_MSG_TYPE_PROTECTED_PAYLOAD.
---
 doc/mach.texi          | 6 ++++++
 include/mach/message.h | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/doc/mach.texi b/doc/mach.texi
index 671e0d0..b187888 100644
--- a/doc/mach.texi
+++ b/doc/mach.texi
@@ -1426,6 +1426,7 @@ types are predefined:
 @item MACH_MSG_TYPE_STRING
 @item MACH_MSG_TYPE_STRING_C
 @item MACH_MSG_TYPE_PORT_NAME
+@item MACH_MSG_TYPE_PROTECTED_PAYLOAD
 @end table
 
 The following predefined types specify port rights, and receive special
@@ -1444,6 +1445,11 @@ should be used in preference to @code{MACH_MSG_TYPE_INTEGER_32}.
 @item MACH_MSG_TYPE_MAKE_SEND_ONCE
 @end table
 
+The type @code{MACH_MSG_TYPE_PROTECTED_PAYLOAD} is used by the kernel
+to indicate that a delivered message carries a payload in the
+@code{msgh_protected_payload} field.  See @ref{Message Receive} for
+more information.
+
 @item msgt_size : 8
 The @code{msgt_size} field specifies the size of each datum, in bits.  For
 example, the msgt_size of @code{MACH_MSG_TYPE_INTEGER_32} data is 32.
diff --git a/include/mach/message.h b/include/mach/message.h
index 7464a57..0a7297e 100644
--- a/include/mach/message.h
+++ b/include/mach/message.h
@@ -256,7 +256,9 @@ typedef	struct	{
 #define MACH_MSG_TYPE_PORT_SEND		MACH_MSG_TYPE_MOVE_SEND
 #define MACH_MSG_TYPE_PORT_SEND_ONCE	MACH_MSG_TYPE_MOVE_SEND_ONCE
 
-#define MACH_MSG_TYPE_LAST		22		/* Last assigned */
+#define MACH_MSG_TYPE_PROTECTED_PAYLOAD	23
+
+#define MACH_MSG_TYPE_LAST		23		/* Last assigned */
 
 /*
  *  A dummy value.  Mostly used to indicate that the actual value
-- 
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