types.h@ 11303

Last change on this file since 11303 was 10962, checked in by vboxsync, 16 years ago
iprt/types.h: Added RTMAC.
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1	/** @file
2	* IPRT - Types.
3	*/
4
5	/*
6	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* The contents of this file may alternatively be used under the terms
17	* of the Common Development and Distribution License Version 1.0
18	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19	* VirtualBox OSE distribution, in which case the provisions of the
20	* CDDL are applicable instead of those of the GPL.
21	*
22	* You may elect to license modified versions of this file under the
23	* terms and conditions of either the GPL or the CDDL or both.
24	*
25	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
26	* Clara, CA 95054 USA or visit http://www.sun.com if you need
27	* additional information or have any questions.
28	*/
29
30	#ifndef ___iprt_types_h
31	#define ___iprt_types_h
32
33	#include <iprt/cdefs.h>
34	#include <iprt/stdint.h>
35
36	/*
37	* Include standard C types.
38	*/
39	#ifndef IPRT_NO_CRT
40
41	# if defined(RT_OS_DARWIN) && defined(KERNEL)
42	/*
43	* Kludge for the darwin kernel:
44	* stddef.h is missing IIRC.
45	*/
46	# ifndef _PTRDIFF_T
47	# define _PTRDIFF_T
48	typedef __darwin_ptrdiff_t ptrdiff_t;
49	# endif
50	# include <sys/types.h>
51
52	# elif defined(RT_OS_FREEBSD) && defined(_KERNEL)
53	/*
54	* Kludge for the FreeBSD kernel:
55	* stddef.h and sys/types.h has sligtly different offsetof definitions
56	* when compiling in kernel mode. This is just to make GCC keep shut.
57	*/
58	# ifndef _STDDEF_H_
59	# undef offsetof
60	# endif
61	# include <stddef.h>
62	# ifndef _SYS_TYPES_H_
63	# undef offsetof
64	# endif
65	# include <sys/types.h>
66	# ifndef offsetof
67	# error "offsetof is not defined..."
68	# endif
69
70	# elif defined(RT_OS_LINUX) && defined(__KERNEL__)
71	/*
72	* Kludge for the linux kernel:
73	* 1. sys/types.h doesn't mix with the kernel.
74	* 2. Starting with 2.6.19, linux/types.h typedefs bool and linux/stddef.h
75	* declares false and true as enum values.
76	* 3. Starting with 2.6.24, linux/types.h typedefs uintptr_t.
77	* We work around these issues here and nowhere else.
78	*/
79	# include <stddef.h>
80	# if defined(__cplusplus)
81	typedef bool _Bool;
82	# endif
83	# define bool linux_bool
84	# define true linux_true
85	# define false linux_false
86	# define uintptr_t linux_uintptr_t
87	# include <linux/autoconf.h>
88	# include <linux/types.h>
89	# include <linux/stddef.h>
90	# undef uintptr_t
91	# undef false
92	# undef true
93	# undef bool
94
95	# else
96	# include <stddef.h>
97	# include <sys/types.h>
98	# endif
99
100	/* Define any types missing from sys/types.h on windows. */
101	# ifdef _MSC_VER
102	# undef ssize_t
103	typedef intptr_t ssize_t;
104	# endif
105
106	#else /* no crt */
107	# include <iprt/nocrt/compiler/gcc.h>
108	#endif /* no crt */
109
110
111
112	/** @defgroup grp_rt_types IPRT Base Types
113	* @{
114	*/
115
116	/* define wchar_t, we don't wanna include all the wcsstuff to get this. */
117	#ifdef _MSC_VER
118	# ifndef _WCHAR_T_DEFINED
119	typedef unsigned short wchar_t;
120	# define _WCHAR_T_DEFINED
121	# endif
122	#endif
123	#ifdef __GNUC__
124	/** @todo wchar_t on GNUC */
125	#endif
126
127	/*
128	* C doesn't have bool.
129	*/
130	#ifndef __cplusplus
131	# if defined(__GNUC__)
132	# if defined(RT_OS_LINUX) && __GNUC__ < 3
133	typedef uint8_t bool;
134	# else
135	# if defined(RT_OS_DARWIN) && defined(_STDBOOL_H)
136	# undef bool
137	# endif
138	typedef _Bool bool;
139	# endif
140	# else
141	typedef unsigned char bool;
142	# endif
143	# ifndef true
144	# define true (1)
145	# endif
146	# ifndef false
147	# define false (0)
148	# endif
149	#endif
150
151	/**
152	* 128-bit unsigned integer.
153	*/
154	#if defined(__GNUC__) && defined(RT_ARCH_AMD64)
155	typedef __uint128_t uint128_t;
156	#else
157	typedef struct uint128_s
158	{
159	uint64_t Lo;
160	uint64_t Hi;
161	} uint128_t;
162	#endif
163
164
165	/**
166	* 128-bit signed integer.
167	*/
168	#if defined(__GNUC__) && defined(RT_ARCH_AMD64)
169	typedef __int128_t int128_t;
170	#else
171	typedef struct int128_s
172	{
173	uint64_t lo;
174	int64_t hi;
175	} int128_t;
176	#endif
177
178
179	/**
180	* 16-bit unsigned interger union.
181	*/
182	typedef union RTUINT16U
183	{
184	/** natural view. */
185	uint16_t u;
186
187	/** 16-bit view. */
188	uint16_t au16[1];
189	/** 8-bit view. */
190	uint8_t au8[4];
191	/** 16-bit hi/lo view. */
192	struct
193	{
194	uint16_t Lo;
195	uint16_t Hi;
196	} s;
197	} RTUINT16U;
198	/** Pointer to a 16-bit unsigned interger union. */
199	typedef RTUINT16U *PRTUINT16U;
200	/** Pointer to a const 32-bit unsigned interger union. */
201	typedef const RTUINT16U *PCRTUINT16U;
202
203
204	/**
205	* 32-bit unsigned interger union.
206	*/
207	typedef union RTUINT32U
208	{
209	/** natural view. */
210	uint32_t u;
211	/** Hi/Low view. */
212	struct
213	{
214	uint16_t Lo;
215	uint16_t Hi;
216	} s;
217	/** Word view. */
218	struct
219	{
220	uint16_t w0;
221	uint16_t w1;
222	} Words;
223
224	/** 32-bit view. */
225	uint32_t au32[1];
226	/** 16-bit view. */
227	uint16_t au16[2];
228	/** 8-bit view. */
229	uint8_t au8[4];
230	} RTUINT32U;
231	/** Pointer to a 32-bit unsigned interger union. */
232	typedef RTUINT32U *PRTUINT32U;
233	/** Pointer to a const 32-bit unsigned interger union. */
234	typedef const RTUINT32U *PCRTUINT32U;
235
236
237	/**
238	* 64-bit unsigned interger union.
239	*/
240	typedef union RTUINT64U
241	{
242	/** Natural view. */
243	uint64_t u;
244	/** Hi/Low view. */
245	struct
246	{
247	uint32_t Lo;
248	uint32_t Hi;
249	} s;
250	/** Double-Word view. */
251	struct
252	{
253	uint32_t dw0;
254	uint32_t dw1;
255	} DWords;
256	/** Word view. */
257	struct
258	{
259	uint16_t w0;
260	uint16_t w1;
261	uint16_t w2;
262	uint16_t w3;
263	} Words;
264
265	/** 64-bit view. */
266	uint64_t au64[1];
267	/** 32-bit view. */
268	uint32_t au32[2];
269	/** 16-bit view. */
270	uint16_t au16[4];
271	/** 8-bit view. */
272	uint8_t au8[8];
273	} RTUINT64U;
274	/** Pointer to a 64-bit unsigned interger union. */
275	typedef RTUINT64U *PRTUINT64U;
276	/** Pointer to a const 64-bit unsigned interger union. */
277	typedef const RTUINT64U *PCRTUINT64U;
278
279
280	/**
281	* 128-bit unsigned interger union.
282	*/
283	typedef union RTUINT128U
284	{
285	/** Natural view.
286	* WARNING! This member depends on compiler supporing 128-bit stuff. */
287	uint128_t u;
288	/** Hi/Low view. */
289	struct
290	{
291	uint64_t Lo;
292	uint64_t Hi;
293	} s;
294	/** Quad-Word view. */
295	struct
296	{
297	uint64_t qw0;
298	uint64_t qw1;
299	} QWords;
300	/** Double-Word view. */
301	struct
302	{
303	uint32_t dw0;
304	uint32_t dw1;
305	uint32_t dw2;
306	uint32_t dw3;
307	} DWords;
308	/** Word view. */
309	struct
310	{
311	uint16_t w0;
312	uint16_t w1;
313	uint16_t w2;
314	uint16_t w3;
315	uint16_t w4;
316	uint16_t w5;
317	uint16_t w6;
318	uint16_t w7;
319	} Words;
320
321	/** 64-bit view. */
322	uint64_t au64[2];
323	/** 32-bit view. */
324	uint32_t au32[4];
325	/** 16-bit view. */
326	uint16_t au16[8];
327	/** 8-bit view. */
328	uint8_t au8[16];
329	} RTUINT128U;
330	/** Pointer to a 64-bit unsigned interger union. */
331	typedef RTUINT128U *PRTUINT128U;
332	/** Pointer to a const 64-bit unsigned interger union. */
333	typedef const RTUINT128U *PCRTUINT128U;
334
335
336	/** Generic function type.
337	* @see PFNRT
338	*/
339	typedef DECLCALLBACK(void) FNRT(void);
340
341	/** Generic function pointer.
342	* With -pedantic, gcc-4 complains when casting a function to a data object, for example
343	*
344	* @code
345	* void foo(void)
346	* {
347	* }
348	*
349	* void bar = (void )foo;
350	* @endcode
351	*
352	* The compiler would warn with "ISO C++ forbids casting between pointer-to-function and
353	* pointer-to-object". The purpose of this warning is not to bother the programmer but to
354	* point out that he is probably doing something dangerous, assigning a pointer to executable
355	* code to a data object.
356	*/
357	typedef FNRT *PFNRT;
358
359
360	/** @defgroup grp_rt_types_both Common Guest and Host Context Basic Types
361	* @ingroup grp_rt_types
362	* @{
363	*/
364
365	/** Signed integer which can contain both GC and HC pointers. */
366	#if (HC_ARCH_BITS == 32 && GC_ARCH_BITS == 32)
367	typedef int32_t RTINTPTR;
368	#elif (HC_ARCH_BITS == 64 \|\| GC_ARCH_BITS == 64)
369	typedef int64_t RTINTPTR;
370	#else
371	# error Unsupported HC_ARCH_BITS and/or GC_ARCH_BITS values.
372	#endif
373	/** Pointer to signed integer which can contain both GC and HC pointers. */
374	typedef RTINTPTR *PRTINTPTR;
375	/** Pointer const to signed integer which can contain both GC and HC pointers. */
376	typedef const RTINTPTR *PCRTINTPTR;
377
378	/** Unsigned integer which can contain both GC and HC pointers. */
379	#if (HC_ARCH_BITS == 32 && GC_ARCH_BITS == 32)
380	typedef uint32_t RTUINTPTR;
381	#elif (HC_ARCH_BITS == 64 \|\| GC_ARCH_BITS == 64)
382	typedef uint64_t RTUINTPTR;
383	#else
384	# error Unsupported HC_ARCH_BITS and/or GC_ARCH_BITS values.
385	#endif
386	/** Pointer to unsigned integer which can contain both GC and HC pointers. */
387	typedef RTUINTPTR *PRTUINTPTR;
388	/** Pointer const to unsigned integer which can contain both GC and HC pointers. */
389	typedef const RTUINTPTR *PCRTUINTPTR;
390
391	/** Signed integer. */
392	typedef int32_t RTINT;
393	/** Pointer to signed integer. */
394	typedef RTINT *PRTINT;
395	/** Pointer to const signed integer. */
396	typedef const RTINT *PCRTINT;
397
398	/** Unsigned integer. */
399	typedef uint32_t RTUINT;
400	/** Pointer to unsigned integer. */
401	typedef RTUINT *PRTUINT;
402	/** Pointer to const unsigned integer. */
403	typedef const RTUINT *PCRTUINT;
404
405	/** A file offset / size (off_t). */
406	typedef int64_t RTFOFF;
407	/** Pointer to a file offset / size. */
408	typedef RTFOFF *PRTFOFF;
409	/** The max value for RTFOFF. */
410	#define RTFOFF_MAX INT64_MAX
411	/** The min value for RTFOFF. */
412	#define RTFOFF_MIN INT64_MIN
413
414	/** File mode (see iprt/fs.h). */
415	typedef uint32_t RTFMODE;
416	/** Pointer to file mode. */
417	typedef RTFMODE *PRTFMODE;
418
419	/** Device unix number. */
420	typedef uint32_t RTDEV;
421	/** Pointer to a device unix number. */
422	typedef RTDEV *PRTDEV;
423
424	/** i-node number. */
425	typedef uint64_t RTINODE;
426	/** Pointer to a i-node number. */
427	typedef RTINODE *PRTINODE;
428
429	/** User id. */
430	typedef uint32_t RTUID;
431	/** Pointer to a user id. */
432	typedef RTUID *PRTUID;
433	/** NIL user id.
434	* @todo check this for portability! */
435	#define NIL_RTUID (~(RTUID)0);
436
437	/** Group id. */
438	typedef uint32_t RTGID;
439	/** Pointer to a group id. */
440	typedef RTGID *PRTGID;
441	/** NIL group id.
442	* @todo check this for portability! */
443	#define NIL_RTGID (~(RTGID)0);
444
445	/** I/O Port. */
446	typedef uint16_t RTIOPORT;
447	/** Pointer to I/O Port. */
448	typedef RTIOPORT *PRTIOPORT;
449	/** Pointer to const I/O Port. */
450	typedef const RTIOPORT *PCRTIOPORT;
451
452	/** Selector. */
453	typedef uint16_t RTSEL;
454	/** Pointer to selector. */
455	typedef RTSEL *PRTSEL;
456	/** Pointer to const selector. */
457	typedef const RTSEL *PCRTSEL;
458
459	/** Far 16-bit pointer. */
460	#pragma pack(1)
461	typedef struct RTFAR16
462	{
463	uint16_t off;
464	RTSEL sel;
465	} RTFAR16;
466	#pragma pack()
467	/** Pointer to Far 16-bit pointer. */
468	typedef RTFAR16 *PRTFAR16;
469	/** Pointer to const Far 16-bit pointer. */
470	typedef const RTFAR16 *PCRTFAR16;
471
472	/** Far 32-bit pointer. */
473	#pragma pack(1)
474	typedef struct RTFAR32
475	{
476	uint32_t off;
477	RTSEL sel;
478	} RTFAR32;
479	#pragma pack()
480	/** Pointer to Far 32-bit pointer. */
481	typedef RTFAR32 *PRTFAR32;
482	/** Pointer to const Far 32-bit pointer. */
483	typedef const RTFAR32 *PCRTFAR32;
484
485	/** Far 64-bit pointer. */
486	#pragma pack(1)
487	typedef struct RTFAR64
488	{
489	uint64_t off;
490	RTSEL sel;
491	} RTFAR64;
492	#pragma pack()
493	/** Pointer to Far 64-bit pointer. */
494	typedef RTFAR64 *PRTFAR64;
495	/** Pointer to const Far 64-bit pointer. */
496	typedef const RTFAR64 *PCRTFAR64;
497
498	/** @} */
499
500
501	/** @defgroup grp_rt_types_hc Host Context Basic Types
502	* @ingroup grp_rt_types
503	* @{
504	*/
505
506	/** HC Natural signed integer. */
507	typedef int32_t RTHCINT;
508	/** Pointer to HC Natural signed integer. */
509	typedef RTHCINT *PRTHCINT;
510	/** Pointer to const HC Natural signed integer. */
511	typedef const RTHCINT *PCRTHCINT;
512
513	/** HC Natural unsigned integer. */
514	typedef uint32_t RTHCUINT;
515	/** Pointer to HC Natural unsigned integer. */
516	typedef RTHCUINT *PRTHCUINT;
517	/** Pointer to const HC Natural unsigned integer. */
518	typedef const RTHCUINT *PCRTHCUINT;
519
520
521	/** Signed integer which can contain a HC pointer. */
522	#if HC_ARCH_BITS == 32
523	typedef int32_t RTHCINTPTR;
524	#elif HC_ARCH_BITS == 64
525	typedef int64_t RTHCINTPTR;
526	#else
527	# error Unsupported HC_ARCH_BITS value.
528	#endif
529	/** Pointer to signed interger which can contain a HC pointer. */
530	typedef RTHCINTPTR *PRTHCINTPTR;
531	/** Pointer to const signed interger which can contain a HC pointer. */
532	typedef const RTHCINTPTR *PCRTHCINTPTR;
533
534	/** Signed integer which can contain a HC ring-3 pointer. */
535	#if R3_ARCH_BITS == 32
536	typedef int32_t RTR3INTPTR;
537	#elif R3_ARCH_BITS == 64
538	typedef int64_t RTR3INTPTR;
539	#else
540	# error Unsupported R3_ARCH_BITS value.
541	#endif
542	/** Pointer to signed interger which can contain a HC ring-3 pointer. */
543	typedef RTR3INTPTR *PRTR3INTPTR;
544	/** Pointer to const signed interger which can contain a HC ring-3 pointer. */
545	typedef const RTR3INTPTR *PCRTR3INTPTR;
546
547	/** Signed integer which can contain a HC ring-0 pointer. */
548	#if R0_ARCH_BITS == 32
549	typedef int32_t RTR0INTPTR;
550	#elif R0_ARCH_BITS == 64
551	typedef int64_t RTR0INTPTR;
552	#else
553	# error Unsupported R0_ARCH_BITS value.
554	#endif
555	/** Pointer to signed interger which can contain a HC ring-0 pointer. */
556	typedef RTR0INTPTR *PRTR0INTPTR;
557	/** Pointer to const signed interger which can contain a HC ring-0 pointer. */
558	typedef const RTR0INTPTR *PCRTR0INTPTR;
559
560
561	/** Unsigned integer which can contain a HC pointer. */
562	#if HC_ARCH_BITS == 32
563	typedef uint32_t RTHCUINTPTR;
564	#elif HC_ARCH_BITS == 64
565	typedef uint64_t RTHCUINTPTR;
566	#else
567	# error Unsupported HC_ARCH_BITS value.
568	#endif
569	/** Pointer to unsigned interger which can contain a HC pointer. */
570	typedef RTHCUINTPTR *PRTHCUINTPTR;
571	/** Pointer to unsigned interger which can contain a HC pointer. */
572	typedef const RTHCUINTPTR *PCRTHCUINTPTR;
573
574	/** Unsigned integer which can contain a HC ring-3 pointer. */
575	#if R3_ARCH_BITS == 32
576	typedef uint32_t RTR3UINTPTR;
577	#elif R3_ARCH_BITS == 64
578	typedef uint64_t RTR3UINTPTR;
579	#else
580	# error Unsupported R3_ARCH_BITS value.
581	#endif
582	/** Pointer to unsigned interger which can contain a HC ring-3 pointer. */
583	typedef RTR3UINTPTR *PRTR3UINTPTR;
584	/** Pointer to unsigned interger which can contain a HC ring-3 pointer. */
585	typedef const RTR3UINTPTR *PCRTR3UINTPTR;
586
587	/** Unsigned integer which can contain a HC ring-0 pointer. */
588	#if R0_ARCH_BITS == 32
589	typedef uint32_t RTR0UINTPTR;
590	#elif R0_ARCH_BITS == 64
591	typedef uint64_t RTR0UINTPTR;
592	#else
593	# error Unsupported R0_ARCH_BITS value.
594	#endif
595	/** Pointer to unsigned interger which can contain a HC ring-0 pointer. */
596	typedef RTR0UINTPTR *PRTR0UINTPTR;
597	/** Pointer to unsigned interger which can contain a HC ring-0 pointer. */
598	typedef const RTR0UINTPTR *PCRTR0UINTPTR;
599
600
601	/** Host Physical Memory Address. */
602	typedef uint64_t RTHCPHYS;
603	/** Pointer to Host Physical Memory Address. */
604	typedef RTHCPHYS *PRTHCPHYS;
605	/** Pointer to const Host Physical Memory Address. */
606	typedef const RTHCPHYS *PCRTHCPHYS;
607	/** @def NIL_RTHCPHYS
608	* NIL HC Physical Address.
609	* NIL_RTHCPHYS is used to signal an invalid physical address, similar
610	* to the NULL pointer.
611	*/
612	#define NIL_RTHCPHYS ((RTHCPHYS)~0U) /** @todo change this to (~(VBOXHCPHYS)0) */
613
614
615	/** HC pointer. */
616	#ifndef IN_GC
617	typedef void * RTHCPTR;
618	#else
619	typedef RTHCUINTPTR RTHCPTR;
620	#endif
621	/** Pointer to HC pointer. */
622	typedef RTHCPTR *PRTHCPTR;
623	/** Pointer to const HC pointer. */
624	typedef const RTHCPTR *PCRTHCPTR;
625	/** @def NIL_RTHCPTR
626	* NIL HC pointer.
627	*/
628	#define NIL_RTHCPTR ((RTHCPTR)0)
629
630	/** HC ring-3 pointer. */
631	#ifdef IN_RING3
632	typedef void * RTR3PTR;
633	#else
634	typedef RTR3UINTPTR RTR3PTR;
635	#endif
636	/** Pointer to HC ring-3 pointer. */
637	typedef RTR3PTR *PRTR3PTR;
638	/** Pointer to const HC ring-3 pointer. */
639	typedef const RTR3PTR *PCRTR3PTR;
640	/** @def NIL_RTR3PTR
641	* NIL HC ring-3 pointer.
642	*/
643	#define NIL_RTR3PTR ((RTR3PTR)0)
644
645	/** HC ring-0 pointer. */
646	#ifdef IN_RING0
647	typedef void * RTR0PTR;
648	#else
649	typedef RTR0UINTPTR RTR0PTR;
650	#endif
651	/** Pointer to HC ring-0 pointer. */
652	typedef RTR0PTR *PRTR0PTR;
653	/** Pointer to const HC ring-0 pointer. */
654	typedef const RTR0PTR *PCRTR0PTR;
655	/** @def NIL_RTR0PTR
656	* NIL HC ring-0 pointer.
657	*/
658	#define NIL_RTR0PTR ((RTR0PTR)0)
659
660
661	/** Unsigned integer register in the host context. */
662	#if HC_ARCH_BITS == 32
663	typedef uint32_t RTHCUINTREG;
664	#elif HC_ARCH_BITS == 64
665	typedef uint64_t RTHCUINTREG;
666	#else
667	# error "Unsupported HC_ARCH_BITS!"
668	#endif
669	/** Pointer to an unsigned integer register in the host context. */
670	typedef RTHCUINTREG *PRTHCUINTREG;
671	/** Pointer to a const unsigned integer register in the host context. */
672	typedef const RTHCUINTREG *PCRTHCUINTREG;
673
674	/** Unsigned integer register in the host ring-3 context. */
675	#if R3_ARCH_BITS == 32
676	typedef uint32_t RTR3UINTREG;
677	#elif R3_ARCH_BITS == 64
678	typedef uint64_t RTR3UINTREG;
679	#else
680	# error "Unsupported R3_ARCH_BITS!"
681	#endif
682	/** Pointer to an unsigned integer register in the host ring-3 context. */
683	typedef RTR3UINTREG *PRTR3UINTREG;
684	/** Pointer to a const unsigned integer register in the host ring-3 context. */
685	typedef const RTR3UINTREG *PCRTR3UINTREG;
686
687	/** Unsigned integer register in the host ring-3 context. */
688	#if R0_ARCH_BITS == 32
689	typedef uint32_t RTR0UINTREG;
690	#elif R0_ARCH_BITS == 64
691	typedef uint64_t RTR0UINTREG;
692	#else
693	# error "Unsupported R3_ARCH_BITS!"
694	#endif
695	/** Pointer to an unsigned integer register in the host ring-3 context. */
696	typedef RTR0UINTREG *PRTR0UINTREG;
697	/** Pointer to a const unsigned integer register in the host ring-3 context. */
698	typedef const RTR0UINTREG *PCRTR0UINTREG;
699
700	/** @} */
701
702
703	/** @defgroup grp_rt_types_gc Guest Context Basic Types
704	* @ingroup grp_rt_types
705	* @{
706	*/
707
708	/** Natural signed integer in the GC. */
709	#if GC_ARCH_BITS == 32
710	typedef int32_t RTGCINT;
711	#elif GC_ARCH_BITS == 64
712	typedef int64_t RTGCINT;
713	#endif
714	/** Pointer to natural signed interger in GC. */
715	typedef RTGCINT *PRTGCINT;
716	/** Pointer to const natural signed interger in GC. */
717	typedef const RTGCINT *PCRTGCINT;
718
719	/** Natural unsigned integer in the GC. */
720	#if GC_ARCH_BITS == 32
721	typedef uint32_t RTGCUINT;
722	#elif GC_ARCH_BITS == 64
723	typedef uint64_t RTGCUINT;
724	#endif
725	/** Pointer to natural unsigned integer in GC. */
726	typedef RTGCUINT *PRTGCUINT;
727	/** Pointer to const natural unsigned integer in GC. */
728	typedef const RTGCUINT *PCRTGCUINT;
729
730	/** Signed integer which can contain a GC pointer. */
731	#if GC_ARCH_BITS == 32
732	typedef int32_t RTGCINTPTR;
733	#elif GC_ARCH_BITS == 64
734	typedef int64_t RTGCINTPTR;
735	#endif
736	/** Pointer to signed interger which can contain a GC pointer. */
737	typedef RTGCINTPTR *PRTGCINTPTR;
738	/** Pointer to const signed interger which can contain a GC pointer. */
739	typedef const RTGCINTPTR *PCRTGCINTPTR;
740
741	/** Unsigned integer which can contain a GC pointer. */
742	#if GC_ARCH_BITS == 32
743	typedef uint32_t RTGCUINTPTR;
744	#elif GC_ARCH_BITS == 64
745	typedef uint64_t RTGCUINTPTR;
746	#else
747	# error Unsupported GC_ARCH_BITS value.
748	#endif
749	/** Pointer to unsigned interger which can contain a GC pointer. */
750	typedef RTGCUINTPTR *PRTGCUINTPTR;
751	/** Pointer to unsigned interger which can contain a GC pointer. */
752	typedef const RTGCUINTPTR *PCRTGCUINTPTR;
753
754	/** Unsigned integer which can contain a 32 bits GC pointer. */
755	typedef uint32_t RTGCUINTPTR32;
756	/** Pointer to unsigned interger which can contain a 32 bits GC pointer. */
757	typedef RTGCUINTPTR32 *PRTGCUINTPTR32;
758	/** Pointer to unsigned interger which can contain a 32 bits GC pointer. */
759	typedef const RTGCUINTPTR32 *PCRTGCUINTPTR32;
760
761	/** Unsigned integer which can contain a 64 bits GC pointer. */
762	typedef uint64_t RTGCUINTPTR64;
763	/** Pointer to unsigned interger which can contain a 32 bits GC pointer. */
764	typedef RTGCUINTPTR64 *PRTGCUINTPTR64;
765	/** Pointer to unsigned interger which can contain a 32 bits GC pointer. */
766	typedef const RTGCUINTPTR64 *PCRTGCUINTPTR64;
767
768	/** Guest Physical Memory Address.*/
769	typedef uint64_t RTGCPHYS;
770	/** Pointer to Guest Physical Memory Address. */
771	typedef RTGCPHYS *PRTGCPHYS;
772	/** Pointer to const Guest Physical Memory Address. */
773	typedef const RTGCPHYS *PCRTGCPHYS;
774	/** @def NIL_RTGCPHYS
775	* NIL GC Physical Address.
776	* NIL_RTGCPHYS is used to signal an invalid physical address, similar
777	* to the NULL pointer. Note that this value may actually be valid in
778	* some contexts.
779	*/
780	#define NIL_RTGCPHYS (~(RTGCPHYS)0U)
781
782
783	/** Guest Physical Memory Address; limited to 32 bits.*/
784	typedef uint32_t RTGCPHYS32;
785	/** Pointer to Guest Physical Memory Address. */
786	typedef RTGCPHYS32 *PRTGCPHYS32;
787	/** Pointer to const Guest Physical Memory Address. */
788	typedef const RTGCPHYS32 *PCRTGCPHYS32;
789	/** @def NIL_RTGCPHYS32
790	* NIL GC Physical Address.
791	* NIL_RTGCPHYS32 is used to signal an invalid physical address, similar
792	* to the NULL pointer. Note that this value may actually be valid in
793	* some contexts.
794	*/
795	#define NIL_RTGCPHYS32 (~(RTGCPHYS32)0)
796
797
798	/** Guest Physical Memory Address; limited to 64 bits.*/
799	typedef uint64_t RTGCPHYS64;
800	/** Pointer to Guest Physical Memory Address. */
801	typedef RTGCPHYS64 *PRTGCPHYS64;
802	/** Pointer to const Guest Physical Memory Address. */
803	typedef const RTGCPHYS64 *PCRTGCPHYS64;
804	/** @def NIL_RTGCPHYS64
805	* NIL GC Physical Address.
806	* NIL_RTGCPHYS64 is used to signal an invalid physical address, similar
807	* to the NULL pointer. Note that this value may actually be valid in
808	* some contexts.
809	*/
810	#define NIL_RTGCPHYS64 (~(RTGCPHYS64)0)
811
812	/** Guest context pointer, 32 bits.
813	* Keep in mind that this type is an unsigned integer in
814	* HC and void pointer in GC.
815	*/
816	typedef RTGCUINTPTR32 RTGCPTR32;
817	/** Pointer to a guest context pointer. */
818	typedef RTGCPTR32 *PRTGCPTR32;
819	/** Pointer to a const guest context pointer. */
820	typedef const RTGCPTR32 *PCRTGCPTR32;
821	/** @def NIL_RTGCPTR32
822	* NIL GC pointer.
823	*/
824	#define NIL_RTGCPTR32 ((RTGCPTR32)0)
825
826	/** Guest context pointer, 64 bits.
827	*/
828	typedef RTGCUINTPTR64 RTGCPTR64;
829	/** Pointer to a guest context pointer. */
830	typedef RTGCPTR64 *PRTGCPTR64;
831	/** Pointer to a const guest context pointer. */
832	typedef const RTGCPTR64 *PCRTGCPTR64;
833	/** @def NIL_RTGCPTR64
834	* NIL GC pointer.
835	*/
836	#define NIL_RTGCPTR64 ((RTGCPTR64)0)
837
838	/** Guest context pointer.
839	* Keep in mind that this type is an unsigned integer in
840	* HC and void pointer in GC.
841	*/
842	#if GC_ARCH_BITS == 64
843	typedef RTGCPTR64 RTGCPTR;
844	/** Pointer to a guest context pointer. */
845	typedef PRTGCPTR64 PRTGCPTR;
846	/** Pointer to a const guest context pointer. */
847	typedef PCRTGCPTR64 PCRTGCPTR;
848	/** @def NIL_RTGCPTR
849	* NIL GC pointer.
850	*/
851	#define NIL_RTGCPTR NIL_RTGCPTR64
852	#elif GC_ARCH_BITS == 32
853	typedef RTGCPTR32 RTGCPTR;
854	/** Pointer to a guest context pointer. */
855	typedef PRTGCPTR32 PRTGCPTR;
856	/** Pointer to a const guest context pointer. */
857	typedef PCRTGCPTR32 PCRTGCPTR;
858	/** @def NIL_RTGCPTR
859	* NIL GC pointer.
860	*/
861	#define NIL_RTGCPTR NIL_RTGCPTR32
862	#else
863	# error "Unsupported GC_ARCH_BITS!"
864	#endif
865
866	/** Unsigned integer register in the guest context. */
867	typedef uint32_t RTGCUINTREG32;
868	/** Pointer to an unsigned integer register in the guest context. */
869	typedef RTGCUINTREG32 *PRTGCUINTREG32;
870	/** Pointer to a const unsigned integer register in the guest context. */
871	typedef const RTGCUINTREG32 *PCRTGCUINTREG32;
872
873	typedef uint64_t RTGCUINTREG64;
874	/** Pointer to an unsigned integer register in the guest context. */
875	typedef RTGCUINTREG64 *PRTGCUINTREG64;
876	/** Pointer to a const unsigned integer register in the guest context. */
877	typedef const RTGCUINTREG64 *PCRTGCUINTREG64;
878
879	#if GC_ARCH_BITS == 64
880	typedef RTGCUINTREG64 RTGCUINTREG;
881	#elif GC_ARCH_BITS == 32
882	typedef RTGCUINTREG32 RTGCUINTREG;
883	#else
884	# error "Unsupported GC_ARCH_BITS!"
885	#endif
886	/** Pointer to an unsigned integer register in the guest context. */
887	typedef RTGCUINTREG *PRTGCUINTREG;
888	/** Pointer to a const unsigned integer register in the guest context. */
889	typedef const RTGCUINTREG *PCRTGCUINTREG;
890
891	/** @} */
892
893	/** @defgroup grp_rt_types_rc Raw mode Context Basic Types
894	* @ingroup grp_rt_types
895	* @{
896	*/
897
898	/** Raw mode context pointer; a 32 bits guest context pointer
899	* Keep in mind that this type is an unsigned integer in
900	* HC and void pointer in GC.
901	*/
902	#ifdef IN_GC
903	typedef void * RTRCPTR;
904	#else
905	typedef uint32_t RTRCPTR;
906	#endif
907	/** Pointer to a raw mode context pointer. */
908	typedef RTRCPTR *PRTRCPTR;
909	/** Pointer to a const raw mode context pointer. */
910	typedef const RTRCPTR *PCRTRCPTR;
911	/** @def NIL_RTGCPTR
912	* NIL RC pointer.
913	*/
914	#define NIL_RTRCPTR ((RTRCPTR)0)
915
916	/** @def RTRCPTR_MAX
917	* The maximum value a RTRCPTR can have. Mostly used as INVALID value.
918	*/
919	#define RTRCPTR_MAX ((RTRCPTR)~0)
920
921	typedef int32_t RTRCINTPTR;
922	typedef uint32_t RTRCUINTPTR;
923
924	/** @} */
925
926
927	/** @defgroup grp_rt_types_cc Current Context Basic Types
928	* @ingroup grp_rt_types
929	* @{
930	*/
931
932	/** Current Context Physical Memory Address.*/
933	#ifdef IN_GC
934	typedef RTGCPHYS RTCCPHYS;
935	#else
936	typedef RTHCPHYS RTCCPHYS;
937	#endif
938	/** Pointer to Current Context Physical Memory Address. */
939	typedef RTCCPHYS *PRTCCPHYS;
940	/** Pointer to const Current Context Physical Memory Address. */
941	typedef const RTCCPHYS *PCRTCCPHYS;
942	/** @def NIL_RTCCPHYS
943	* NIL CC Physical Address.
944	* NIL_RTCCPHYS is used to signal an invalid physical address, similar
945	* to the NULL pointer.
946	*/
947	#ifdef IN_GC
948	# define NIL_RTCCPHYS NIL_RTGCPHYS
949	#else
950	# define NIL_RTCCPHYS NIL_RTHCPHYS
951	#endif
952
953	/** Unsigned integer register in the current 32 bits context. */
954	typedef uint32_t RTCCUINTREG32;
955	/** Pointer to an unsigned integer register in the current context. */
956	typedef RTCCUINTREG32 *PRTCCUINTREG32;
957	/** Pointer to a const unsigned integer register in the current context. */
958	typedef const RTCCUINTREG32 *PCRTCCUINTREG32;
959
960	/** Unsigned integer register in the current 64 bits context. */
961	typedef uint64_t RTCCUINTREG64;
962	/** Pointer to an unsigned integer register in the current context. */
963	typedef RTCCUINTREG64 *PRTCCUINTREG64;
964	/** Pointer to a const unsigned integer register in the current context. */
965	typedef const RTCCUINTREG64 *PCRTCCUINTREG64;
966
967	/** Unsigned integer register in the current context. */
968	#if ARCH_BITS == 32
969	typedef RTCCUINTREG32 RTCCUINTREG;
970	/** Pointer to an unsigned integer register in the current context. */
971	typedef PRTCCUINTREG32 PRTCCUINTREG;
972	/** Pointer to a const unsigned integer register in the current context. */
973	typedef PCRTCCUINTREG32 PCRTCCUINTREG;
974	#elif ARCH_BITS == 64
975	typedef RTCCUINTREG64 RTCCUINTREG;
976	/** Pointer to an unsigned integer register in the current context. */
977	typedef PRTCCUINTREG64 PRTCCUINTREG;
978	/** Pointer to a const unsigned integer register in the current context. */
979	typedef PCRTCCUINTREG64 PCRTCCUINTREG;
980	#else
981	# error "Unsupported ARCH_BITS!"
982	#endif
983
984	/** @} */
985
986
987	/** File handle. */
988	typedef RTUINT RTFILE;
989	/** Pointer to file handle. */
990	typedef RTFILE *PRTFILE;
991	/** Nil file handle. */
992	#define NIL_RTFILE (~(RTFILE)0)
993
994	/** Loader module handle. */
995	typedef R3PTRTYPE(struct RTLDRMODINTERNAL *) RTLDRMOD;
996	/** Pointer to a loader module handle. */
997	typedef RTLDRMOD *PRTLDRMOD;
998	/** Nil loader module handle. */
999	#define NIL_RTLDRMOD 0
1000
1001	/** Ring-0 memory object handle. */
1002	typedef R0PTRTYPE(struct RTR0MEMOBJINTERNAL *) RTR0MEMOBJ;
1003	/** Pointer to a Ring-0 memory object handle. */
1004	typedef RTR0MEMOBJ *PRTR0MEMOBJ;
1005	/** Nil ring-0 memory object handle. */
1006	#define NIL_RTR0MEMOBJ 0
1007
1008	/** Native thread handle. */
1009	typedef RTHCUINTPTR RTNATIVETHREAD;
1010	/** Pointer to an native thread handle. */
1011	typedef RTNATIVETHREAD *PRTNATIVETHREAD;
1012	/** Nil native thread handle. */
1013	#define NIL_RTNATIVETHREAD (~(RTNATIVETHREAD)0)
1014
1015	/** Process identifier. */
1016	typedef uint32_t RTPROCESS;
1017	/** Pointer to a process identifier. */
1018	typedef RTPROCESS *PRTPROCESS;
1019	/** Nil process identifier. */
1020	#define NIL_RTPROCESS (~(RTPROCESS)0)
1021
1022	/** Process ring-0 handle. */
1023	typedef RTR0UINTPTR RTR0PROCESS;
1024	/** Pointer to a ring-0 process handle. */
1025	typedef RTR0PROCESS *PRTR0PROCESS;
1026	/** Nil ring-0 process handle. */
1027	#define NIL_RTR0PROCESS (~(RTR0PROCESS)0)
1028
1029	/** @typedef RTSEMEVENT
1030	* Event Semaphore handle. */
1031	typedef R3R0PTRTYPE(struct RTSEMEVENTINTERNAL *) RTSEMEVENT;
1032	/** Pointer to an event semaphore handle. */
1033	typedef RTSEMEVENT *PRTSEMEVENT;
1034	/** Nil event semaphore handle. */
1035	#define NIL_RTSEMEVENT 0
1036
1037	/** @typedef RTSEMEVENTMULTI
1038	* Event Multiple Release Semaphore handle. */
1039	typedef R3R0PTRTYPE(struct RTSEMEVENTMULTIINTERNAL *) RTSEMEVENTMULTI;
1040	/** Pointer to an event multiple release semaphore handle. */
1041	typedef RTSEMEVENTMULTI *PRTSEMEVENTMULTI;
1042	/** Nil multiple release event semaphore handle. */
1043	#define NIL_RTSEMEVENTMULTI 0
1044
1045	/** @typedef RTSEMFASTMUTEX
1046	* Fast mutex Semaphore handle. */
1047	typedef R3R0PTRTYPE(struct RTSEMFASTMUTEXINTERNAL *) RTSEMFASTMUTEX;
1048	/** Pointer to a mutex semaphore handle. */
1049	typedef RTSEMFASTMUTEX *PRTSEMFASTMUTEX;
1050	/** Nil fast mutex semaphore handle. */
1051	#define NIL_RTSEMFASTMUTEX 0
1052
1053	/** @typedef RTSEMMUTEX
1054	* Mutex Semaphore handle. */
1055	typedef R3R0PTRTYPE(struct RTSEMMUTEXINTERNAL *) RTSEMMUTEX;
1056	/** Pointer to a mutex semaphore handle. */
1057	typedef RTSEMMUTEX *PRTSEMMUTEX;
1058	/** Nil mutex semaphore handle. */
1059	#define NIL_RTSEMMUTEX 0
1060
1061	/** @typedef RTSEMRW
1062	* Read/Write Semaphore handle. */
1063	typedef R3R0PTRTYPE(struct RTSEMRWINTERNAL *) RTSEMRW;
1064	/** Pointer to a read/write semaphore handle. */
1065	typedef RTSEMRW *PRTSEMRW;
1066	/** Nil read/write semaphore handle. */
1067	#define NIL_RTSEMRW 0
1068
1069	/** Spinlock handle. */
1070	typedef R3R0PTRTYPE(struct RTSPINLOCKINTERNAL *) RTSPINLOCK;
1071	/** Pointer to a spinlock handle. */
1072	typedef RTSPINLOCK *PRTSPINLOCK;
1073	/** Nil spinlock handle. */
1074	#define NIL_RTSPINLOCK 0
1075
1076	/** Socket handle. */
1077	typedef int RTSOCKET;
1078	/** Pointer to socket handle. */
1079	typedef RTSOCKET *PRTSOCKET;
1080	/** Nil socket handle. */
1081	#define NIL_RTSOCKET (~(RTSOCKET)0)
1082
1083	/** Thread handle.*/
1084	typedef R3R0PTRTYPE(struct RTTHREADINT *) RTTHREAD;
1085	/** Pointer to thread handle. */
1086	typedef RTTHREAD *PRTTHREAD;
1087	/** Nil thread handle. */
1088	#define NIL_RTTHREAD 0
1089
1090	/** A TLS index. */
1091	typedef int RTTLS;
1092	/** Pointer to a TLS index. */
1093	typedef RTTLS *PRTTLS;
1094	/** Pointer to a const TLS index. */
1095	typedef RTTLS const *PCRTTLS;
1096	/** NIL TLS index value. */
1097	#define NIL_RTTLS (-1)
1098
1099	/** Handle to a simple heap. */
1100	typedef R3R0PTRTYPE(struct RTHEAPSIMPLEINTERNAL *) RTHEAPSIMPLE;
1101	/** Pointer to a handle to a simple heap. */
1102	typedef RTHEAPSIMPLE *PRTHEAPSIMPLE;
1103	/** NIL simple heap handle. */
1104	#define NIL_RTHEAPSIMPLE ((RTHEAPSIMPLE)0)
1105
1106	/** Handle to an environment block. */
1107	typedef R3PTRTYPE(struct RTENVINTERNAL *) RTENV;
1108	/** Pointer to a handle to an environment block. */
1109	typedef RTENV *PRTENV;
1110	/** NIL simple heap handle. */
1111	#define NIL_RTENV ((RTENV)0)
1112
1113	/** A CPU identifier.
1114	* @remarks This doesn't have to correspond to the APIC ID (intel/amd). Nor
1115	* does it have to correspond to the bits in the affinity mask, at
1116	* least not until we've sorted out Windows NT. */
1117	typedef RTHCUINTPTR RTCPUID;
1118	/** Pointer to a CPU identifier. */
1119	typedef RTCPUID *PRTCPUID;
1120	/** Pointer to a const CPU identifier. */
1121	typedef RTCPUID const *PCRTCPUID;
1122	/** Nil CPU Id. */
1123	#define NIL_RTCPUID ((RTCPUID)~0)
1124
1125	/** A CPU set.
1126	* Treat this as an opaque type and always use RTCpuSet* for manupulating it. */
1127	typedef uint64_t RTCPUSET;
1128	/** Pointer to a CPU set. */
1129	typedef RTCPUSET *PRTCPUSET;
1130	/** Pointer to a const CPU set. */
1131	typedef RTCPUSET const *PCRTCPUSET;
1132
1133	/** A handle table handle. */
1134	typedef struct RTHANDLETABLEINT *RTHANDLETABLE;
1135	/** A pointer to a handle table handle. */
1136	typedef RTHANDLETABLE *PRTHANDLETABLE;
1137	/** @def NIL_RTHANDLETABLE
1138	* NIL handle table handle. */
1139	#define NIL_RTHANDLETABLE ((RTHANDLETABLE)0)
1140
1141	/** A handle to a low resolution timer. */
1142	typedef struct RTTIMERLRINT *RTTIMERLR;
1143	/** A pointer to a low resolution timer handle. */
1144	typedef RTTIMERLR *PRTTIMERLR;
1145	/** @def NIL_RTTIMERLR
1146	* NIL low resolution timer handle value. */
1147	#define NIL_RTTIMERLR ((RTTIMERLR)0)
1148
1149
1150	/**
1151	* UUID data type.
1152	*/
1153	typedef union RTUUID
1154	{
1155	/** 8-bit view. */
1156	uint8_t au8[16];
1157	/** 16-bit view. */
1158	uint16_t au16[8];
1159	/** 32-bit view. */
1160	uint32_t au32[4];
1161	/** 64-bit view. */
1162	uint64_t au64[2];
1163	/** The way the UUID is declared by the ext2 guys. */
1164	struct
1165	{
1166	uint32_t u32TimeLow;
1167	uint16_t u16TimeMid;
1168	uint16_t u16TimeHiAndVersion;
1169	uint16_t u16ClockSeq;
1170	uint8_t au8Node[6];
1171	} Gen;
1172	/** @deprecated */
1173	unsigned char aUuid[16];
1174	} RTUUID;
1175	/** Pointer to UUID data. */
1176	typedef RTUUID *PRTUUID;
1177	/** Pointer to readonly UUID data. */
1178	typedef const RTUUID *PCRTUUID;
1179
1180	/**
1181	* UUID string maximum length.
1182	*/
1183	#define RTUUID_STR_LENGTH 37
1184
1185
1186	/** Compression handle. */
1187	typedef struct RTZIPCOMP *PRTZIPCOMP;
1188
1189	/** Decompressor handle. */
1190	typedef struct RTZIPDECOMP *PRTZIPDECOMP;
1191
1192
1193	/**
1194	* Unicode Code Point.
1195	*/
1196	typedef uint32_t RTUNICP;
1197	/** Pointer to an Unicode Code Point. */
1198	typedef RTUNICP *PRTUNICP;
1199	/** Pointer to an Unicode Code Point. */
1200	typedef const RTUNICP *PCRTUNICP;
1201
1202
1203	/**
1204	* UTF-16 character.
1205	* @remark wchar_t is not usable since it's compiler defined.
1206	* @remark When we use the term character we're not talking about unicode code point, but
1207	* the basic unit of the string encoding. Thus cwc - count of wide chars - means
1208	* count of RTUTF16; cuc - count of unicode chars - means count of RTUNICP;
1209	* and cch means count of the typedef 'char', which is assumed to be an octet.
1210	*/
1211	typedef uint16_t RTUTF16;
1212	/** Pointer to a UTF-16 character. */
1213	typedef RTUTF16 *PRTUTF16;
1214	/** Pointer to a const UTF-16 character. */
1215	typedef const RTUTF16 *PCRTUTF16;
1216
1217
1218	/**
1219	* Wait for ever if we have to.
1220	*/
1221	#define RT_INDEFINITE_WAIT (~0U)
1222
1223
1224	/**
1225	* Generic process callback.
1226	*
1227	* @returns VBox status code. Failure will cancel the operation.
1228	* @param uPercentage The percentage of the operation which has been completed.
1229	* @param pvUser The user specified argument.
1230	*/
1231	typedef DECLCALLBACK(int) FNRTPROGRESS(unsigned uPrecentage, void *pvUser);
1232	/** Pointer to a generic progress callback function, FNRTPROCESS(). */
1233	typedef FNRTPROGRESS *PFNRTPROGRESS;
1234
1235
1236	/**
1237	* Rectangle data type.
1238	*/
1239	typedef struct RTRECT
1240	{
1241	/** left X coordinate. */
1242	int32_t xLeft;
1243	/** top Y coordinate. */
1244	int32_t yTop;
1245	/** right X coordinate. (exclusive) */
1246	int32_t xRight;
1247	/** bottom Y coordinate. (exclusive) */
1248	int32_t yBottom;
1249	} RTRECT;
1250	/** Pointer to a rectangle. */
1251	typedef RTRECT *PRTRECT;
1252	/** Pointer to a const rectangle. */
1253	typedef const RTRECT *PCRTRECT;
1254
1255
1256	/**
1257	* Ethernet MAC address.
1258	*
1259	* The first 24 bits make up the Organisationally Unique Identifier (OUI),
1260	* where the first bit (little endian) indicates multicast (set) / unicast,
1261	* and the second bit indicates locally (set) / global administered. If all
1262	* bits are set, it's a broadcast.
1263	*/
1264	typedef union RTMAC
1265	{
1266	/** @todo add a bitfield view of this stuff. */
1267	/** 8-bit view. */
1268	uint8_t au8[6];
1269	/** 16-bit view. */
1270	uint16_t au16[3];
1271	} RTMAC;
1272	/** Pointer to a MAC address. */
1273	typedef RTMAC *PRTMAC;
1274	/** Pointer to a readonly MAC address. */
1275	typedef const RTMAC *PCRTMAC;
1276
1277	/** @} */
1278
1279	#endif
1280

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