xnu-3789.41.3.tar.gz

[apple/xnu.git] / bsd / sys / msg.h

diff --git a/bsd/sys/msg.h b/bsd/sys/msg.h
index d53ebd98cfc270b7f1820453bfecb2ac3633e475..6f530fa66a75eb04fb3947711585dabe42b88b0b 100644 (file)
--- a/bsd/sys/msg.h
+++ b/bsd/sys/msg.h
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * 

- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER

  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.

  * 
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /*     $NetBSD: msg.h,v 1.4 1994/06/29 06:44:43 cgd Exp $      */
 
  */
 /*     $NetBSD: msg.h,v 1.4 1994/06/29 06:44:43 cgd Exp $      */
 


@@ -39,6 +45,12 @@
  *
  * This software is provided ``AS IS'' without any warranties of any kind.
  */
  *
  * This software is provided ``AS IS'' without any warranties of any kind.
  */

+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */

 
 #ifndef _SYS_MSG_H_
 #define _SYS_MSG_H_
 
 #ifndef _SYS_MSG_H_
 #define _SYS_MSG_H_


@@ -62,25 +74,10 @@
  * NOTE:       The definition of the key_t type is implicit from the
  *             inclusion of <sys/ipc.h>
  */
  * NOTE:       The definition of the key_t type is implicit from the
  *             inclusion of <sys/ipc.h>
  */

-#ifndef _PID_T
-typedef __darwin_pid_t         pid_t;
-#define _PID_T
-#endif
-
-#ifndef        _TIME_T
-#define        _TIME_T
-typedef        __darwin_time_t         time_t;
-#endif
-
-#ifndef _SIZE_T
-#define _SIZE_T
-typedef __darwin_size_t                size_t;
-#endif
-
-#ifndef        _SSIZE_T
-#define        _SSIZE_T
-typedef        __darwin_ssize_t        ssize_t;
-#endif
+#include <sys/_types/_pid_t.h>
+#include <sys/_types/_time_t.h>
+#include <sys/_types/_size_t.h>
+#include <sys/_types/_ssize_t.h>

 
 /* [XSI] Used for the number of messages in the message queue */
 typedef unsigned long          msgqnum_t;
 
 /* [XSI] Used for the number of messages in the message queue */
 typedef unsigned long          msgqnum_t;


@@ -88,7 +85,6 @@ typedef unsigned long         msgqnum_t;
 /* [XSI] Used for the number of bytes allowed in a message queue */
 typedef unsigned long          msglen_t;
 
 /* [XSI] Used for the number of bytes allowed in a message queue */
 typedef unsigned long          msglen_t;
 

-

 /*
  * Possible values for the fifth parameter to msgrcv(), in addition to the
  * IPC_NOWAIT flag, which is permitted.
 /*
  * Possible values for the fifth parameter to msgrcv(), in addition to the
  * IPC_NOWAIT flag, which is permitted.


@@ -102,7 +98,8 @@ typedef unsigned long                msglen_t;
  * legacy interface there for binary compatibility only.  Currently, we
  * are only forcing this for programs requesting standards conformance.
  */
  * legacy interface there for binary compatibility only.  Currently, we
  * are only forcing this for programs requesting standards conformance.
  */

-#if defined(__POSIX_C_SOURCE) || defined(kernel) || defined(__LP64__)
+#if __DARWIN_UNIX03 || defined(KERNEL)
+#pragma pack(4)

 /*
  * Structure used internally.
  * 
 /*
  * Structure used internally.
  * 


@@ -115,7 +112,13 @@ typedef unsigned long              msglen_t;
  *
  * NOTES:      Reserved fields are not preserved across IPC_SET/IPC_STAT.
  */
  *
  * NOTES:      Reserved fields are not preserved across IPC_SET/IPC_STAT.
  */

-struct __msqid_ds_new {
+#if (defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE))
+struct msqid_ds
+#else
+#define        msqid_ds        __msqid_ds_new
+struct __msqid_ds_new
+#endif
+{

        struct __ipc_perm_new   msg_perm; /* [XSI] msg queue permissions */
        __int32_t       msg_first;      /* RESERVED: kernel use only */
        __int32_t       msg_last;       /* RESERVED: kernel use only */
        struct __ipc_perm_new   msg_perm; /* [XSI] msg queue permissions */
        __int32_t       msg_first;      /* RESERVED: kernel use only */
        __int32_t       msg_last;       /* RESERVED: kernel use only */


@@ -132,12 +135,12 @@ struct __msqid_ds_new {
        __int32_t       msg_pad3;       /* RESERVED: DO NOT USE */
        __int32_t       msg_pad4[4];    /* RESERVED: DO NOT USE */
 };
        __int32_t       msg_pad3;       /* RESERVED: DO NOT USE */
        __int32_t       msg_pad4[4];    /* RESERVED: DO NOT USE */
 };

-#define        msqid_ds        __msqid_ds_new
-#else  /* !_POSIX_C_SOURCE */
+#pragma pack()
+#else  /* !__DARWIN_UNIX03 */

 #define        msqid_ds        __msqid_ds_old
 #define        msqid_ds        __msqid_ds_old

-#endif /* !_POSIX_C_SOURCE */
+#endif /* !__DARWIN_UNIX03 */

 
 

-#if !defined(__POSIX_C_SOURCE) && !defined(__LP64__)
+#if !__DARWIN_UNIX03

 struct __msqid_ds_old {
        struct __ipc_perm_old   msg_perm; /* [XSI] msg queue permissions */
        __int32_t       msg_first;      /* RESERVED: kernel use only */
 struct __msqid_ds_old {
        struct __ipc_perm_old   msg_perm; /* [XSI] msg queue permissions */
        __int32_t       msg_first;      /* RESERVED: kernel use only */


@@ -155,25 +158,32 @@ struct __msqid_ds_old {
        __int32_t       msg_pad3;       /* RESERVED: DO NOT USE */
        __int32_t       msg_pad4[4];    /* RESERVED: DO NOT USE */
 };
        __int32_t       msg_pad3;       /* RESERVED: DO NOT USE */
        __int32_t       msg_pad4[4];    /* RESERVED: DO NOT USE */
 };

-#endif /* !_POSIX_C_SOURCE */
+#endif /* !__DARWIN_UNIX03 */

 
 #ifdef KERNEL
 #ifdef __APPLE_API_PRIVATE
 #include <machine/types.h>
 
 
 #ifdef KERNEL
 #ifdef __APPLE_API_PRIVATE
 #include <machine/types.h>
 

-// LP64todo - should this move?
-

 #if __DARWIN_ALIGN_NATURAL
 #pragma options align=natural
 #endif
 
 #if __DARWIN_ALIGN_NATURAL
 #pragma options align=natural
 #endif
 

+typedef user_ulong_t   user_msgqnum_t;
+typedef user64_ulong_t user64_msgqnum_t;
+typedef user32_ulong_t user32_msgqnum_t;
+
+typedef user_ulong_t   user_msglen_t;
+typedef user64_ulong_t user64_msglen_t;
+typedef user32_ulong_t user32_msglen_t;
+
+/* kernel version */

 struct user_msqid_ds {
        struct ipc_perm msg_perm;       /* [XSI] msg queue permissions */
        struct msg      *msg_first;     /* first message in the queue */
        struct msg      *msg_last;      /* last message in the queue */
 struct user_msqid_ds {
        struct ipc_perm msg_perm;       /* [XSI] msg queue permissions */
        struct msg      *msg_first;     /* first message in the queue */
        struct msg      *msg_last;      /* last message in the queue */

-       msglen_t        msg_cbytes;     /* # of bytes on the queue */
-       msgqnum_t       msg_qnum;       /* [XSI] number of msgs on the queue */
-       msglen_t        msg_qbytes;     /* [XSI] max bytes on the queue */
+       user_msglen_t   msg_cbytes;     /* # of bytes on the queue */
+       user_msgqnum_t  msg_qnum;       /* [XSI] number of msgs on the queue */
+       user_msglen_t   msg_qbytes;     /* [XSI] max bytes on the queue */

        pid_t           msg_lspid;      /* [XSI] pid of last msgsnd() */
        pid_t           msg_lrpid;      /* [XSI] pid of last msgrcv() */
        user_time_t     msg_stime;      /* [XSI] time of last msgsnd() */
        pid_t           msg_lspid;      /* [XSI] pid of last msgsnd() */
        pid_t           msg_lrpid;      /* [XSI] pid of last msgrcv() */
        user_time_t     msg_stime;      /* [XSI] time of last msgsnd() */


@@ -185,15 +195,66 @@ struct user_msqid_ds {
        __int32_t       msg_pad4[4];
 };
 
        __int32_t       msg_pad4[4];
 };
 

+/*
+ * user64 version - this structure only has to be correct if
+ * compiled LP64, because the 32 bit kernel doesn't need it
+ */
+struct user64_msqid_ds {
+       struct ipc_perm msg_perm;       /* [XSI] msg queue permissions */
+       __int32_t       msg_first;      /* RESERVED: kernel use only */
+       __int32_t       msg_last;       /* RESERVED: kernel use only */
+       user64_msglen_t msg_cbytes;     /* # of bytes on the queue */
+       user64_msgqnum_t        msg_qnum;       /* [XSI] number of msgs on the queue */
+       user64_msglen_t msg_qbytes;     /* [XSI] max bytes on the queue */
+       pid_t           msg_lspid;      /* [XSI] pid of last msgsnd() */
+       pid_t           msg_lrpid;      /* [XSI] pid of last msgrcv() */
+       user64_time_t   msg_stime;      /* [XSI] time of last msgsnd() */
+       __int32_t       msg_pad1;       /* RESERVED: DO NOT USE */
+       user64_time_t   msg_rtime;      /* [XSI] time of last msgrcv() */
+       __int32_t       msg_pad2;       /* RESERVED: DO NOT USE */
+       user64_time_t   msg_ctime;      /* [XSI] time of last msgctl() */
+       __int32_t       msg_pad3;       /* RESERVED: DO NOT USE */
+       __int32_t       msg_pad4[4];
+} __attribute__((__packed__));
+
+struct user32_msqid_ds
+{
+       struct __ipc_perm_new   msg_perm; /* [XSI] msg queue permissions */
+       __int32_t       msg_first;      /* RESERVED: kernel use only */
+       __int32_t       msg_last;       /* RESERVED: kernel use only */
+       user32_msglen_t msg_cbytes;     /* # of bytes on the queue */
+       user32_msgqnum_t        msg_qnum;       /* [XSI] number of msgs on the queue */
+       user32_msglen_t msg_qbytes;     /* [XSI] max bytes on the queue */
+       pid_t           msg_lspid;      /* [XSI] pid of last msgsnd() */
+       pid_t           msg_lrpid;      /* [XSI] pid of last msgrcv() */
+       user32_time_t           msg_stime;      /* [XSI] time of last msgsnd() */
+       __int32_t       msg_pad1;       /* RESERVED: DO NOT USE */
+       user32_time_t           msg_rtime;      /* [XSI] time of last msgrcv() */
+       __int32_t       msg_pad2;       /* RESERVED: DO NOT USE */
+       user32_time_t           msg_ctime;      /* [XSI] time of last msgctl() */
+       __int32_t       msg_pad3;       /* RESERVED: DO NOT USE */
+       __int32_t       msg_pad4[4];    /* RESERVED: DO NOT USE */
+};
+

 #if __DARWIN_ALIGN_NATURAL
 #pragma options align=reset
 #endif
 
 #if __DARWIN_ALIGN_NATURAL
 #pragma options align=reset
 #endif
 

+struct label;
+
+/*
+ * Kernel wrapper for the user-level structure
+ */
+struct msqid_kernel {
+       struct  user_msqid_ds u;
+       struct  label *label;   /* MAC framework label */
+};
+

 #endif /* __APPLE_API_PRIVATE */
 #endif /* KERNEL */
 
 
 #endif /* __APPLE_API_PRIVATE */
 #endif /* KERNEL */
 
 

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #ifdef __APPLE_API_UNSTABLE
 /* XXX kernel only; protect with macro later */
 
 #ifdef __APPLE_API_UNSTABLE
 /* XXX kernel only; protect with macro later */
 


@@ -204,6 +265,7 @@ struct msg {
                                        /* 0 -> free header */
        unsigned short  msg_ts;         /* size of this message */
        short           msg_spot;       /* location of msg start in buffer */
                                        /* 0 -> free header */
        unsigned short  msg_ts;         /* size of this message */
        short           msg_spot;       /* location of msg start in buffer */

+       struct label    *label;         /* MAC label */

 };
 
 /*
 };
 
 /*


@@ -283,26 +345,28 @@ struct msgmap {
 extern char *msgpool;          /* MSGMAX byte long msg buffer pool */
 extern struct msgmap *msgmaps; /* MSGSEG msgmap structures */
 extern struct msg *msghdrs;    /* MSGTQL msg headers */
 extern char *msgpool;          /* MSGMAX byte long msg buffer pool */
 extern struct msgmap *msgmaps; /* MSGSEG msgmap structures */
 extern struct msg *msghdrs;    /* MSGTQL msg headers */

-extern struct user_msqid_ds    *msqids; /* MSGMNI user_msqid_ds struct's */
+extern struct msqid_kernel *msqids;    /* MSGMNI user_msqid_ds struct's */

 
 #define MSG_LOCKED     01000   /* Is this msqid_ds locked? */
 
 #endif /* KERNEL */
 #endif /* __APPLE_API_UNSTABLE */
 
 #define MSG_LOCKED     01000   /* Is this msqid_ds locked? */
 
 #endif /* KERNEL */
 #endif /* __APPLE_API_UNSTABLE */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 #ifndef KERNEL
 
 __BEGIN_DECLS
 
 #ifndef KERNEL
 
 __BEGIN_DECLS

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 int msgsys(int, ...);
 int msgsys(int, ...);

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 int msgctl(int, int, struct msqid_ds *) __DARWIN_ALIAS(msgctl);
 int msgget(key_t, int);
 int msgctl(int, int, struct msqid_ds *) __DARWIN_ALIAS(msgctl);
 int msgget(key_t, int);

-ssize_t msgrcv(int, void *, size_t, long, int);
-int msgsnd(int, const void *, size_t, int);
+ssize_t msgrcv(int, void *, size_t, long, int) __DARWIN_ALIAS_C(msgrcv);
+int msgsnd(int, const void *, size_t, int) __DARWIN_ALIAS_C(msgsnd);

 __END_DECLS
 
 #endif /* !KERNEL */
 
 #endif /* !_SYS_MSG_H_ */
 __END_DECLS
 
 #endif /* !KERNEL */
 
 #endif /* !_SYS_MSG_H_ */

+
+