xnu-4570.71.2.tar.gz

[apple/xnu.git] / osfmk / mach / message.h

diff --git a/osfmk/mach/message.h b/osfmk/mach/message.h
index b3769d484398b876418cbc757db0e578f638c624..13481e1bdfa09dc7c73ee44dd94cd0e0898ef043 100644 (file)
--- a/osfmk/mach/message.h
+++ b/osfmk/mach/message.h
@@ -222,20 +222,23 @@ typedef unsigned int mach_msg_bits_t;
 typedef        natural_t mach_msg_size_t;
 typedef integer_t mach_msg_id_t;
 
 typedef        natural_t mach_msg_size_t;
 typedef integer_t mach_msg_id_t;
 

-

 #define MACH_MSG_SIZE_NULL (mach_msg_size_t *) 0
 
 #define MACH_MSG_SIZE_NULL (mach_msg_size_t *) 0
 

+typedef unsigned int mach_msg_priority_t;
+
+#define MACH_MSG_PRIORITY_UNSPECIFIED (mach_msg_priority_t) 0
+

 typedef unsigned int mach_msg_type_name_t;
 
 typedef unsigned int mach_msg_type_name_t;
 

-#define MACH_MSG_TYPE_MOVE_RECEIVE     16      /* Must hold receive right */
-#define MACH_MSG_TYPE_MOVE_SEND                17      /* Must hold send right(s) */
-#define MACH_MSG_TYPE_MOVE_SEND_ONCE   18      /* Must hold sendonce right */
-#define MACH_MSG_TYPE_COPY_SEND                19      /* Must hold send right(s) */
-#define MACH_MSG_TYPE_MAKE_SEND                20      /* Must hold receive right */
-#define MACH_MSG_TYPE_MAKE_SEND_ONCE   21      /* Must hold receive right */
-#define MACH_MSG_TYPE_COPY_RECEIVE     22      /* NOT VALID */
-#define MACH_MSG_TYPE_DISPOSE_RECEIVE  24      /* must hold receive right */
-#define MACH_MSG_TYPE_DISPOSE_SEND     25      /* must hold send right(s) */
+#define MACH_MSG_TYPE_MOVE_RECEIVE      16     /* Must hold receive right */
+#define MACH_MSG_TYPE_MOVE_SEND         17     /* Must hold send right(s) */
+#define MACH_MSG_TYPE_MOVE_SEND_ONCE    18     /* Must hold sendonce right */
+#define MACH_MSG_TYPE_COPY_SEND         19     /* Must hold send right(s) */
+#define MACH_MSG_TYPE_MAKE_SEND         20     /* Must hold receive right */
+#define MACH_MSG_TYPE_MAKE_SEND_ONCE    21     /* Must hold receive right */
+#define MACH_MSG_TYPE_COPY_RECEIVE      22     /* NOT VALID */
+#define MACH_MSG_TYPE_DISPOSE_RECEIVE   24     /* must hold receive right */
+#define MACH_MSG_TYPE_DISPOSE_SEND      25     /* must hold send right(s) */

 #define MACH_MSG_TYPE_DISPOSE_SEND_ONCE 26     /* must hold sendonce right */
 
 typedef unsigned int mach_msg_copy_options_t;
 #define MACH_MSG_TYPE_DISPOSE_SEND_ONCE 26     /* must hold sendonce right */
 
 typedef unsigned int mach_msg_copy_options_t;


@@ -493,6 +496,27 @@ typedef struct
   mach_port_context_t          msgh_context;
 } mach_msg_context_trailer_t;
 
   mach_port_context_t          msgh_context;
 } mach_msg_context_trailer_t;
 

+#if defined(MACH_KERNEL_PRIVATE) && defined(__arm64__)
+typedef struct 
+{
+  mach_msg_trailer_type_t      msgh_trailer_type;
+  mach_msg_trailer_size_t      msgh_trailer_size;
+  mach_port_seqno_t            msgh_seqno;
+  security_token_t             msgh_sender;
+  audit_token_t                        msgh_audit;
+  mach_port_context32_t                msgh_context;
+} mach_msg_context_trailer32_t;
+
+typedef struct 
+{
+  mach_msg_trailer_type_t      msgh_trailer_type;
+  mach_msg_trailer_size_t      msgh_trailer_size;
+  mach_port_seqno_t            msgh_seqno;
+  security_token_t             msgh_sender;
+  audit_token_t                        msgh_audit;
+  mach_port_context64_t                msgh_context;
+} mach_msg_context_trailer64_t;
+#endif

 
 
 typedef struct
 
 
 typedef struct


@@ -517,6 +541,32 @@ typedef struct
   msg_labels_t                  msgh_labels;
 } mach_msg_mac_trailer_t;
 
   msg_labels_t                  msgh_labels;
 } mach_msg_mac_trailer_t;
 

+#if defined(MACH_KERNEL_PRIVATE) && defined(__arm64__)
+typedef struct
+{
+  mach_msg_trailer_type_t       msgh_trailer_type;
+  mach_msg_trailer_size_t       msgh_trailer_size;
+  mach_port_seqno_t             msgh_seqno;
+  security_token_t              msgh_sender;
+  audit_token_t                 msgh_audit;
+  mach_port_context32_t                msgh_context;
+  int                          msgh_ad;
+  msg_labels_t                  msgh_labels;
+} mach_msg_mac_trailer32_t;
+
+typedef struct
+{
+  mach_msg_trailer_type_t       msgh_trailer_type;
+  mach_msg_trailer_size_t       msgh_trailer_size;
+  mach_port_seqno_t             msgh_seqno;
+  security_token_t              msgh_sender;
+  audit_token_t                 msgh_audit;
+  mach_port_context64_t                msgh_context;
+  int                          msgh_ad;
+  msg_labels_t                  msgh_labels;
+} mach_msg_mac_trailer64_t;
+
+#endif

 
 #define MACH_MSG_TRAILER_MINIMUM_SIZE  sizeof(mach_msg_trailer_t)
 
 
 #define MACH_MSG_TRAILER_MINIMUM_SIZE  sizeof(mach_msg_trailer_t)
 


@@ -529,6 +579,10 @@ typedef struct
  * another module may exceed the local modules notion of
  * MAX_TRAILER_SIZE.
  */
  * another module may exceed the local modules notion of
  * MAX_TRAILER_SIZE.
  */

+#if defined(MACH_KERNEL_PRIVATE) && defined(__arm64__)
+typedef mach_msg_mac_trailer64_t mach_msg_max_trailer64_t;
+typedef mach_msg_mac_trailer32_t mach_msg_max_trailer32_t;
+#endif

 
 typedef mach_msg_mac_trailer_t mach_msg_max_trailer_t;
 #define MAX_TRAILER_SIZE ((mach_msg_size_t)sizeof(mach_msg_max_trailer_t))
 
 typedef mach_msg_mac_trailer_t mach_msg_max_trailer_t;
 #define MAX_TRAILER_SIZE ((mach_msg_size_t)sizeof(mach_msg_max_trailer_t))


@@ -658,6 +712,7 @@ typedef integer_t mach_msg_option_t;
 #define MACH_RCV_LARGE_IDENTITY        0x00000008      /* identify source of large messages */
 
 #define MACH_SEND_TIMEOUT      0x00000010      /* timeout value applies to send */
 #define MACH_RCV_LARGE_IDENTITY        0x00000008      /* identify source of large messages */
 
 #define MACH_SEND_TIMEOUT      0x00000010      /* timeout value applies to send */

+#define MACH_SEND_OVERRIDE  0x00000020  /* priority override for send */

 #define MACH_SEND_INTERRUPT    0x00000040      /* don't restart interrupted sends */
 #define MACH_SEND_NOTIFY       0x00000080      /* arm send-possible notify */
 #define MACH_SEND_ALWAYS       0x00010000      /* ignore qlimits - kernel only */
 #define MACH_SEND_INTERRUPT    0x00000040      /* don't restart interrupted sends */
 #define MACH_SEND_NOTIFY       0x00000080      /* arm send-possible notify */
 #define MACH_SEND_ALWAYS       0x00010000      /* ignore qlimits - kernel only */


@@ -665,6 +720,7 @@ typedef integer_t mach_msg_option_t;
 #define MACH_SEND_NOIMPORTANCE  0x00040000      /* msg won't carry importance */
 #define MACH_SEND_NODENAP      MACH_SEND_NOIMPORTANCE
 #define MACH_SEND_IMPORTANCE   0x00080000      /* msg carries importance - kernel only */
 #define MACH_SEND_NOIMPORTANCE  0x00040000      /* msg won't carry importance */
 #define MACH_SEND_NODENAP      MACH_SEND_NOIMPORTANCE
 #define MACH_SEND_IMPORTANCE   0x00080000      /* msg carries importance - kernel only */

+#define MACH_SEND_SYNC_OVERRIDE        0x00100000      /* msg should do sync ipc override */

 
 
 #define MACH_RCV_TIMEOUT       0x00000100      /* timeout value applies to receive */  
 
 
 #define MACH_RCV_TIMEOUT       0x00000100      /* timeout value applies to receive */  


@@ -672,6 +728,21 @@ typedef integer_t mach_msg_option_t;
 #define MACH_RCV_INTERRUPT     0x00000400      /* don't restart interrupted receive */
 #define MACH_RCV_VOUCHER       0x00000800      /* willing to receive voucher port */
 #define MACH_RCV_OVERWRITE     0x00001000      /* scatter receive (deprecated) */
 #define MACH_RCV_INTERRUPT     0x00000400      /* don't restart interrupted receive */
 #define MACH_RCV_VOUCHER       0x00000800      /* willing to receive voucher port */
 #define MACH_RCV_OVERWRITE     0x00001000      /* scatter receive (deprecated) */

+#define MACH_RCV_SYNC_WAIT     0x00004000      /* sync waiter waiting for rcv */
+
+#ifdef XNU_KERNEL_PRIVATE
+
+#define MACH_RCV_STACK          0x00002000     /* receive into highest addr of buffer */
+
+/*
+ * NOTE:
+ * This internal-only flag is intended for use by a single thread per-port/set!
+ * If more than one thread attempts to MACH_PEEK_MSG on a port or set, one of
+ * the threads may miss messages (in fact, it may never wake up).
+ */
+#define MACH_PEEK_MSG          0x00100000      /* receive, but leave msgs queued */
+
+#endif

 
 /* 
  * NOTE: a 0x00------ RCV mask implies to ask for
 
 /* 
  * NOTE: a 0x00------ RCV mask implies to ask for


@@ -698,31 +769,31 @@ typedef integer_t mach_msg_option_t;
 
 #ifdef MACH_KERNEL_PRIVATE
 /* The options that the kernel honors when passed from user space */
 
 #ifdef MACH_KERNEL_PRIVATE
 /* The options that the kernel honors when passed from user space */

-#define MACH_SEND_USER          (MACH_SEND_MSG | \
-                                 MACH_SEND_TIMEOUT | MACH_SEND_NOTIFY | \
-                                 MACH_SEND_TRAILER | MACH_SEND_NOIMPORTANCE )
+#define MACH_SEND_USER (MACH_SEND_MSG | MACH_SEND_TIMEOUT | \
+                                               MACH_SEND_NOTIFY | MACH_SEND_OVERRIDE | \
+                                               MACH_SEND_TRAILER | MACH_SEND_NOIMPORTANCE | \
+                                               MACH_SEND_SYNC_OVERRIDE)

 
 

-#define MACH_RCV_USER           (MACH_RCV_MSG | MACH_RCV_TIMEOUT | \
-                                 MACH_RCV_LARGE | MACH_RCV_LARGE_IDENTITY | \
-                                 MACH_RCV_VOUCHER | MACH_RCV_TRAILER_MASK)
+#define MACH_RCV_USER (MACH_RCV_MSG | MACH_RCV_TIMEOUT | \
+                                          MACH_RCV_LARGE | MACH_RCV_LARGE_IDENTITY | \
+                                          MACH_RCV_VOUCHER | MACH_RCV_TRAILER_MASK | \
+                                          MACH_RCV_SYNC_WAIT)

 
 #define MACH_MSG_OPTION_USER    (MACH_SEND_USER | MACH_RCV_USER)
 
 /* The options implemented by the library interface to mach_msg et. al. */
 #define MACH_MSG_OPTION_LIB     (MACH_SEND_INTERRUPT | MACH_RCV_INTERRUPT)
 
 
 #define MACH_MSG_OPTION_USER    (MACH_SEND_USER | MACH_RCV_USER)
 
 /* The options implemented by the library interface to mach_msg et. al. */
 #define MACH_MSG_OPTION_LIB     (MACH_SEND_INTERRUPT | MACH_RCV_INTERRUPT)
 

-/* Default options to use when sending from the kernel */
-#if 11938665
-       /*
-        * Until we are sure of its effects, we are disabling
-        * importance donation from the kernel-side of user
-        * threads in importance-donating tasks.
-        */
+/*
+ * Default options to use when sending from the kernel.
+ *
+ * Until we are sure of its effects, we are disabling
+ * importance donation from the kernel-side of user
+ * threads in importance-donating tasks.
+ * (11938665 & 23925818)
+ */

 #define MACH_SEND_KERNEL_DEFAULT (MACH_SEND_MSG | \
                                  MACH_SEND_ALWAYS | MACH_SEND_NOIMPORTANCE)
 #define MACH_SEND_KERNEL_DEFAULT (MACH_SEND_MSG | \
                                  MACH_SEND_ALWAYS | MACH_SEND_NOIMPORTANCE)

-#else
-#define MACH_SEND_KERNEL_DEFAULT (MACH_SEND_MSG | MACH_SEND_ALWAYS)
-#endif

 
 #endif /* MACH_KERNEL_PRIVATE */
 
 
 #endif /* MACH_KERNEL_PRIVATE */
 


@@ -754,7 +825,25 @@ typedef integer_t mach_msg_option_t;
 
 #ifdef XNU_KERNEL_PRIVATE
 
 
 #ifdef XNU_KERNEL_PRIVATE
 

+#if defined(__arm64__)
+#define REQUESTED_TRAILER_SIZE(is64, y)                                \
+       ((mach_msg_trailer_size_t)                              \
+        ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_NULL) ?      \
+         sizeof(mach_msg_trailer_t) :                          \
+         ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_SEQNO) ?    \
+          sizeof(mach_msg_seqno_trailer_t) :                   \
+         ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_SENDER) ?   \
+          sizeof(mach_msg_security_trailer_t) :                \
+          ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_AUDIT) ?   \
+           sizeof(mach_msg_audit_trailer_t) :                  \
+           ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_CTX) ?    \
+            ((is64) ? sizeof(mach_msg_context_trailer64_t) : sizeof(mach_msg_context_trailer32_t)) : \
+            ((GET_RCV_ELEMENTS(y) == MACH_RCV_TRAILER_AV) ?    \
+             ((is64) ? sizeof(mach_msg_mac_trailer64_t) : sizeof(mach_msg_mac_trailer32_t)) : \
+              sizeof(mach_msg_max_trailer_t))))))))
+#else

 #define REQUESTED_TRAILER_SIZE(is64, y) REQUESTED_TRAILER_SIZE_NATIVE(y)
 #define REQUESTED_TRAILER_SIZE(is64, y) REQUESTED_TRAILER_SIZE_NATIVE(y)

+#endif

 
 #else /* XNU_KERNEL_PRIVATE */
 #define REQUESTED_TRAILER_SIZE(y) REQUESTED_TRAILER_SIZE_NATIVE(y)
 
 #else /* XNU_KERNEL_PRIVATE */
 #define REQUESTED_TRAILER_SIZE(y) REQUESTED_TRAILER_SIZE_NATIVE(y)


@@ -855,6 +944,13 @@ typedef kern_return_t mach_msg_return_t;
 #define MACH_RCV_IN_PROGRESS_TIMED      0x10004011
                 /* Waiting for receive with timeout. (Internal use only.) */
 
 #define MACH_RCV_IN_PROGRESS_TIMED      0x10004011
                 /* Waiting for receive with timeout. (Internal use only.) */
 

+#ifdef XNU_KERNEL_PRIVATE
+#define MACH_PEEK_IN_PROGRESS          0x10008001
+                /* Waiting for a peek. (Internal use only.) */
+#define MACH_PEEK_READY                        0x10008002
+                /* Waiting for a peek. (Internal use only.) */
+#endif
+

 
 __BEGIN_DECLS
 
 
 __BEGIN_DECLS
 


@@ -918,8 +1014,10 @@ extern kern_return_t              mach_voucher_deallocate(
 
 #elif defined(MACH_KERNEL_PRIVATE)
 
 
 #elif defined(MACH_KERNEL_PRIVATE)
 

-extern mach_msg_return_t       mach_msg_receive_results(void);
+extern mach_msg_return_t       mach_msg_receive_results(mach_msg_size_t *size);

 
 

+extern mach_msg_priority_t mach_msg_priority_combine(mach_msg_priority_t msg_qos,
+                                                     mach_msg_priority_t recv_qos);

 #endif /* KERNEL */
 
 __END_DECLS
 #endif /* KERNEL */
 
 __END_DECLS