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intnet.h

Last change on this file was 104338, checked in by vboxsync, 2 weeks ago
VBox/intnet.h: Corrected alignment padding in INTNETSG.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 54.2 KB

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1	/** @file
2	* INTNET - Internal Networking. (DEV,++)
3	*/
4
5	/*
6	* Copyright (C) 2006-2023 Oracle and/or its affiliates.
7	*
8	* This file is part of VirtualBox base platform packages, as
9	* available from https://www.virtualbox.org.
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU General Public License
13	* as published by the Free Software Foundation, in version 3 of the
14	* License.
15	*
16	* This program is distributed in the hope that it will be useful, but
17	* WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19	* General Public License for more details.
20	*
21	* You should have received a copy of the GNU General Public License
22	* along with this program; if not, see <https://www.gnu.org/licenses>.
23	*
24	* The contents of this file may alternatively be used under the terms
25	* of the Common Development and Distribution License Version 1.0
26	* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
27	* in the VirtualBox distribution, in which case the provisions of the
28	* CDDL are applicable instead of those of the GPL.
29	*
30	* You may elect to license modified versions of this file under the
31	* terms and conditions of either the GPL or the CDDL or both.
32	*
33	* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
34	*/
35
36	#ifndef VBOX_INCLUDED_intnet_h
37	#define VBOX_INCLUDED_intnet_h
38	#ifndef RT_WITHOUT_PRAGMA_ONCE
39	# pragma once
40	#endif
41
42	#include <VBox/types.h>
43	#include <VBox/vmm/stam.h>
44	#include <VBox/sup.h>
45	#include <iprt/assert.h>
46	#include <iprt/asm.h>
47
48	RT_C_DECLS_BEGIN
49
50
51	/** The userspace internal network service identifier. */
52	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_INTNET_SERVICE_IN_R3)
53	/** The XPC service identififer. */
54	# define INTNET_R3_SVC_NAME "org.virtualbox.intnet"
55	/** The high 32 bits pattern for the "rc" status code field to recognize errors
56	* where xpc_dictionary_get_int64() might return 0 which could be confused with VINF_SUCCESS. */
57	# define INTNET_R3_SVC_RC_PATTERN ((uint64_t)RT_MAKE_U32_FROM_U8('V', 'B', 'O', 'X'))
58	/** Constructs a signd 64bit value for the given 32-bit status code. */
59	# define INTNET_R3_SVC_SET_RC(a_rc) ((INTNET_R3_SVC_RC_PATTERN << 32) \| (uint64_t)(a_rc))
60	/** Gets the status code from the given 64-bit signed status code value. */
61	# define INTNET_R3_SVC_GET_RC(a_RcVal) ((int32_t)(a_RcVal))
62	/** Checks whether the given 64-bit signed status code value encodes a valid IPRT/VBOX status code. */
63	# define INTNET_R3_SVC_IS_VALID_RC(a_RcVal) (((a_RcVal) >> 32) == INTNET_R3_SVC_RC_PATTERN)
64	#endif
65
66
67	/**
68	* Generic two-sided ring buffer.
69	*
70	* The deal is that there is exactly one writer and one reader.
71	* When offRead equals offWrite the buffer is empty. In the other
72	* extreme the writer will not use the last free byte in the buffer.
73	*/
74	typedef struct INTNETRINGBUF
75	{
76	/** The offset from this structure to the start of the buffer. */
77	uint32_t offStart;
78	/** The offset from this structure to the end of the buffer. (exclusive). */
79	uint32_t offEnd;
80	/** The current read offset. */
81	uint32_t volatile offReadX;
82	/** Alignment. */
83	uint32_t u32Align0;
84
85	/** The committed write offset. */
86	uint32_t volatile offWriteCom;
87	/** Writer internal current write offset.
88	* This is ahead of offWriteCom when buffer space is handed to a third party for
89	* data gathering. offWriteCom will be assigned this value by the writer then
90	* the frame is ready. */
91	uint32_t volatile offWriteInt;
92	/** The number of bytes written (not counting overflows). */
93	STAMCOUNTER cbStatWritten;
94	/** The number of frames written (not counting overflows). */
95	STAMCOUNTER cStatFrames;
96	/** The number of overflows. */
97	STAMCOUNTER cOverflows;
98	} INTNETRINGBUF;
99	AssertCompileSize(INTNETRINGBUF, 48);
100	/** Pointer to a ring buffer. */
101	typedef INTNETRINGBUF *PINTNETRINGBUF;
102
103	/** The alignment of a ring buffer. */
104	#define INTNETRINGBUF_ALIGNMENT sizeof(INTNETHDR)
105
106	/**
107	* Asserts the sanity of the specified INTNETRINGBUF structure.
108	*/
109	#ifdef VBOX_STRICT
110	# define INTNETRINGBUF_ASSERT_SANITY(pRingBuf) \
111	do \
112	{ \
113	AssertPtr(pRingBuf); \
114	{ \
115	uint32_t const offWriteCom = (pRingBuf)->offWriteCom; \
116	uint32_t const offRead = (pRingBuf)->offReadX; \
117	uint32_t const offWriteInt = (pRingBuf)->offWriteInt; \
118	\
119	AssertMsg(offWriteCom == RT_ALIGN_32(offWriteCom, INTNETHDR_ALIGNMENT), ("%#x\n", offWriteCom)); \
120	AssertMsg(offWriteCom >= (pRingBuf)->offStart, ("%#x %#x\n", offWriteCom, (pRingBuf)->offStart)); \
121	AssertMsg(offWriteCom < (pRingBuf)->offEnd, ("%#x %#x\n", offWriteCom, (pRingBuf)->offEnd)); \
122	\
123	AssertMsg(offRead == RT_ALIGN_32(offRead, INTNETHDR_ALIGNMENT), ("%#x\n", offRead)); \
124	AssertMsg(offRead >= (pRingBuf)->offStart, ("%#x %#x\n", offRead, (pRingBuf)->offStart)); \
125	AssertMsg(offRead < (pRingBuf)->offEnd, ("%#x %#x\n", offRead, (pRingBuf)->offEnd)); \
126	\
127	AssertMsg(offWriteInt == RT_ALIGN_32(offWriteInt, INTNETHDR_ALIGNMENT), ("%#x\n", offWriteInt)); \
128	AssertMsg(offWriteInt >= (pRingBuf)->offStart, ("%#x %#x\n", offWriteInt, (pRingBuf)->offStart)); \
129	AssertMsg(offWriteInt < (pRingBuf)->offEnd, ("%#x %#x\n", offWriteInt, (pRingBuf)->offEnd)); \
130	AssertMsg( offRead <= offWriteCom \
131	? offWriteCom <= offWriteInt \|\| offWriteInt < offRead \
132	: offWriteCom <= offWriteInt, \
133	("W=%#x W'=%#x R=%#x\n", offWriteCom, offWriteInt, offRead)); \
134	} \
135	} while (0)
136	#else
137	# define INTNETRINGBUF_ASSERT_SANITY(pRingBuf) do { } while (0)
138	#endif
139
140
141
142	/**
143	* A interface buffer.
144	*/
145	typedef struct INTNETBUF
146	{
147	/** Magic number (INTNETBUF_MAGIC). */
148	uint32_t u32Magic;
149	/** The size of the entire buffer. */
150	uint32_t cbBuf;
151	/** The size of the send area. */
152	uint32_t cbSend;
153	/** The size of the receive area. */
154	uint32_t cbRecv;
155	/** The receive buffer. */
156	INTNETRINGBUF Recv;
157	/** The send buffer. */
158	INTNETRINGBUF Send;
159	/** Number of times yields help solve an overflow. */
160	STAMCOUNTER cStatYieldsOk;
161	/** Number of times yields didn't help solve an overflow. */
162	STAMCOUNTER cStatYieldsNok;
163	/** Number of lost packets due to overflows. */
164	STAMCOUNTER cStatLost;
165	/** Number of bad frames (both rings). */
166	STAMCOUNTER cStatBadFrames;
167	/** Reserved for future use. */
168	STAMCOUNTER aStatReserved[2];
169	/** Reserved for future send profiling. */
170	STAMPROFILE StatSend1;
171	/** Reserved for future send profiling. */
172	STAMPROFILE StatSend2;
173	/** Reserved for future receive profiling. */
174	STAMPROFILE StatRecv1;
175	/** Reserved for future receive profiling. */
176	STAMPROFILE StatRecv2;
177	/** Reserved for future profiling. */
178	STAMPROFILE StatReserved;
179	} INTNETBUF;
180	AssertCompileSize(INTNETBUF, 320);
181	AssertCompileMemberOffset(INTNETBUF, Recv, 16);
182	AssertCompileMemberOffset(INTNETBUF, Send, 64);
183
184	/** Pointer to an interface buffer. */
185	typedef INTNETBUF *PINTNETBUF;
186	/** Pointer to a const interface buffer. */
187	typedef INTNETBUF const *PCINTNETBUF;
188
189	/** Magic number for INTNETBUF::u32Magic (Sir William Gerald Golding). */
190	#define INTNETBUF_MAGIC UINT32_C(0x19110919)
191
192	/**
193	* Asserts the sanity of the specified INTNETBUF structure.
194	*/
195	#define INTNETBUF_ASSERT_SANITY(pBuf) \
196	do \
197	{ \
198	AssertPtr(pBuf); \
199	Assert((pBuf)->u32Magic == INTNETBUF_MAGIC); \
200	{ \
201	uint32_t const offRecvStart = (pBuf)->Recv.offStart + RT_UOFFSETOF(INTNETBUF, Recv); \
202	uint32_t const offRecvEnd = (pBuf)->Recv.offStart + RT_UOFFSETOF(INTNETBUF, Recv); \
203	uint32_t const offSendStart = (pBuf)->Send.offStart + RT_UOFFSETOF(INTNETBUF, Send); \
204	uint32_t const offSendEnd = (pBuf)->Send.offStart + RT_UOFFSETOF(INTNETBUF, Send); \
205	\
206	Assert(offRecvEnd > offRecvStart); \
207	Assert(offRecvEnd - offRecvStart == (pBuf)->cbRecv); \
208	Assert(offRecvStart == sizeof(INTNETBUF)); \
209	\
210	Assert(offSendEnd > offSendStart); \
211	Assert(offSendEnd - offSendStart == (pBuf)->cbSend); \
212	Assert(pffSendEnd <= (pBuf)->cbBuf); \
213	\
214	Assert(offSendStart == offRecvEnd); \
215	} \
216	} while (0)
217
218
219	/** Internal networking interface handle. */
220	typedef uint32_t INTNETIFHANDLE;
221	/** Pointer to an internal networking interface handle. */
222	typedef INTNETIFHANDLE *PINTNETIFHANDLE;
223
224	/** Or mask to obscure the handle index. */
225	#define INTNET_HANDLE_MAGIC 0x88880000
226	/** Mask to extract the handle index. */
227	#define INTNET_HANDLE_INDEX_MASK 0xffff
228	/** The maximum number of handles (exclusive) */
229	#define INTNET_HANDLE_MAX 0xffff
230	/** Invalid handle. */
231	#define INTNET_HANDLE_INVALID (0)
232
233
234	/**
235	* The frame header.
236	*
237	* The header is intentionally 8 bytes long. It will always
238	* start at an 8 byte aligned address. Assuming that the buffer
239	* size is a multiple of 8 bytes, that means that we can guarantee
240	* that the entire header is contiguous in both virtual and physical
241	* memory.
242	*/
243	typedef struct INTNETHDR
244	{
245	/** The size of the frame. */
246	uint32_t cbFrame : 24;
247	/** Header type. This is currently serving as a magic, it
248	* can be extended later to encode special command frames and stuff. */
249	uint32_t u8Type : 8;
250	/** The offset from the start of this header to where the actual frame starts.
251	* This is used to keep the frame it self contiguous in virtual memory and
252	* thereby both simplify access as well as the descriptor. */
253	int32_t offFrame;
254	} INTNETHDR;
255	AssertCompileSize(INTNETHDR, 8);
256	AssertCompileSizeAlignment(INTNETBUF, sizeof(INTNETHDR));
257	/** Pointer to a frame header.*/
258	typedef INTNETHDR *PINTNETHDR;
259	/** Pointer to a const frame header.*/
260	typedef INTNETHDR const *PCINTNETHDR;
261
262	/** The alignment of a frame header. */
263	#define INTNETHDR_ALIGNMENT sizeof(INTNETHDR)
264	AssertCompile(sizeof(INTNETHDR) == INTNETHDR_ALIGNMENT);
265	AssertCompile(INTNETHDR_ALIGNMENT <= INTNETRINGBUF_ALIGNMENT);
266
267	/** @name Frame types (INTNETHDR::u8Type).
268	* @{ */
269	/** Normal frames. */
270	#define INTNETHDR_TYPE_FRAME 0x42
271	/** Padding frames. */
272	#define INTNETHDR_TYPE_PADDING 0x53
273	/** Generic segment offload frames.
274	* The frame starts with a PDMNETWORKGSO structure which is followed by the
275	* header template and data. */
276	#define INTNETHDR_TYPE_GSO 0x64
277	AssertCompileSize(PDMNETWORKGSO, 8);
278	/** @} */
279
280	/**
281	* Asserts the sanity of the specified INTNETHDR.
282	*/
283	#ifdef VBOX_STRICT
284	#define INTNETHDR_ASSERT_SANITY(pHdr, pRingBuf) \
285	do \
286	{ \
287	AssertPtr(pHdr); \
288	Assert(RT_ALIGN_PT(pHdr, INTNETHDR_ALIGNMENT, INTNETHDR *) == pHdr); \
289	Assert( (pHdr)->u8Type == INTNETHDR_TYPE_FRAME \
290	\|\| (pHdr)->u8Type == INTNETHDR_TYPE_GSO \
291	\|\| (pHdr)->u8Type == INTNETHDR_TYPE_PADDING); \
292	{ \
293	uintptr_t const offHdr = (uintptr_t)pHdr - (uintptr_t)pRingBuf; \
294	uintptr_t const offFrame = offHdr + (pHdr)->offFrame; \
295	\
296	Assert(offHdr >= (pRingBuf)->offStart); \
297	Assert(offHdr < (pRingBuf)->offEnd); \
298	\
299	/* could do more thorough work here... later, perhaps. */ \
300	Assert(offFrame >= (pRingBuf)->offStart); \
301	Assert(offFrame < (pRingBuf)->offEnd); \
302	} \
303	} while (0)
304	#else
305	# define INTNETHDR_ASSERT_SANITY(pHdr, pRingBuf) do { } while (0)
306	#endif
307
308
309	/**
310	* Scatter / Gather segment (internal networking).
311	*/
312	typedef struct INTNETSEG
313	{
314	/** The physical address. NIL_RTHCPHYS is not set. */
315	RTHCPHYS Phys;
316	/** Pointer to the segment data. */
317	void *pv;
318	/** The segment size. */
319	uint32_t cb;
320	} INTNETSEG;
321	/** Pointer to a internal networking frame segment. */
322	typedef INTNETSEG *PINTNETSEG;
323	/** Pointer to a internal networking frame segment. */
324	typedef INTNETSEG const *PCINTNETSEG;
325
326
327	/**
328	* Scatter / Gather list (internal networking).
329	*
330	* This is used when communicating with the trunk port.
331	*/
332	typedef struct INTNETSG
333	{
334	/** Owner data, don't touch! */
335	void *pvOwnerData;
336	/** User data. */
337	void *pvUserData;
338	/** User data 2 in case anyone needs it. */
339	void *pvUserData2;
340	/** GSO context information, set the type to invalid if not relevant. */
341	PDMNETWORKGSO GsoCtx;
342	/** The total length of the scatter gather list. */
343	uint32_t cbTotal;
344	/** The number of users (references).
345	* This is used by the SGRelease code to decide when it can be freed. */
346	uint16_t volatile cUsers;
347	/** Flags, see INTNETSG_FLAGS_* */
348	uint16_t volatile fFlags;
349	#if ARCH_BITS == 64
350	/** Alignment padding. */
351	uint32_t uPadding;
352	#endif
353	/** The number of segments allocated. */
354	uint16_t cSegsAlloc;
355	/** The number of segments actually used. */
356	uint16_t cSegsUsed;
357	/** Variable sized list of segments. */
358	RT_FLEXIBLE_ARRAY_EXTENSION
359	INTNETSEG aSegs[RT_FLEXIBLE_ARRAY];
360	} INTNETSG;
361	AssertCompileSizeAlignment(INTNETSG, 8);
362	/** Pointer to a scatter / gather list. */
363	typedef INTNETSG *PINTNETSG;
364	/** Pointer to a const scatter / gather list. */
365	typedef INTNETSG const *PCINTNETSG;
366
367	/** @name INTNETSG::fFlags definitions.
368	* @{ */
369	/** Set if the SG is free. */
370	#define INTNETSG_FLAGS_FREE RT_BIT_32(1)
371	/** Set if the SG is a temporary one that will become invalid upon return.
372	* Try to finish using it before returning, and if that's not possible copy
373	* to other buffers.
374	* When not set, the callee should always free the SG.
375	* Attempts to free it made by the callee will be quietly ignored. */
376	#define INTNETSG_FLAGS_TEMP RT_BIT_32(2)
377	/** ARP packet, IPv4 + MAC.
378	* @internal */
379	#define INTNETSG_FLAGS_ARP_IPV4 RT_BIT_32(3)
380	/** Copied to the temporary buffer.
381	* @internal */
382	#define INTNETSG_FLAGS_PKT_CP_IN_TMP RT_BIT_32(4)
383	/** @} */
384
385
386	/** @name Direction (frame source or destination)
387	* @{ */
388	/** To/From the wire. */
389	#define INTNETTRUNKDIR_WIRE RT_BIT_32(0)
390	/** To/From the host. */
391	#define INTNETTRUNKDIR_HOST RT_BIT_32(1)
392	/** Mask of valid bits. */
393	#define INTNETTRUNKDIR_VALID_MASK UINT32_C(3)
394	/** @} */
395
396	/**
397	* Switch decisions returned by INTNETTRUNKSWPORT::pfnPreRecv.
398	*/
399	typedef enum INTNETSWDECISION
400	{
401	/** The usual invalid zero value. */
402	INTNETSWDECISION_INVALID = 0,
403	/** Everywhere. */
404	INTNETSWDECISION_BROADCAST,
405	/** Only to the internal network. */
406	INTNETSWDECISION_INTNET,
407	/** Only for the trunk (host/wire). */
408	INTNETSWDECISION_TRUNK,
409	/** Used internally to indicate that the packet cannot be handled in the
410	* current context. */
411	INTNETSWDECISION_BAD_CONTEXT,
412	/** Used internally to indicate that the packet should be dropped. */
413	INTNETSWDECISION_DROP,
414	/** The usual 32-bit type expansion. */
415	INTNETSWDECISION_32BIT_HACK = 0x7fffffff
416	} INTNETSWDECISION;
417
418
419	/**
420	* Network layer address type.
421	*/
422	typedef enum INTNETADDRTYPE
423	{
424	/** The invalid 0 entry. */
425	kIntNetAddrType_Invalid = 0,
426	/** IP version 4. */
427	kIntNetAddrType_IPv4,
428	/** IP version 6. */
429	kIntNetAddrType_IPv6,
430	/** IPX. */
431	kIntNetAddrType_IPX,
432	/** The end of the valid values. */
433	kIntNetAddrType_End,
434	/** The usual 32-bit hack. */
435	kIntNetAddrType_32BitHack = 0x7fffffff
436	} INTNETADDRTYPE;
437
438
439	/** Pointer to the interface side of a trunk port. */
440	typedef struct INTNETTRUNKIFPORT *PINTNETTRUNKIFPORT;
441
442
443	/**
444	* Special variation of INTNETTRUNKIFPORT::pfnRelease for use with
445	* INTNETTRUNKSWPORT::pfnDisconnect.
446	*
447	* @param pIfPort Pointer to the INTNETTRUNKIFPORT instance.
448	*/
449	typedef DECLCALLBACKTYPE(void, FNINTNETTRUNKIFPORTRELEASEBUSY,(PINTNETTRUNKIFPORT pIfPort));
450	/** Pointer to a FNINTNETTRUNKIFPORTRELEASEBUSY function. */
451	typedef FNINTNETTRUNKIFPORTRELEASEBUSY *PFNINTNETTRUNKIFPORTRELEASEBUSY;
452
453
454	/** Pointer to the switch side of a trunk port. */
455	typedef struct INTNETTRUNKSWPORT *PINTNETTRUNKSWPORT;
456	/**
457	* This is the port on the internal network 'switch', i.e.
458	* what the driver is connected to.
459	*
460	* This is only used for the in-kernel trunk connections.
461	*/
462	typedef struct INTNETTRUNKSWPORT
463	{
464	/** Structure version number. (INTNETTRUNKSWPORT_VERSION) */
465	uint32_t u32Version;
466
467	/**
468	* Examine the packet and figure out where it is going.
469	*
470	* This method is for making packet switching decisions in contexts where
471	* pfnRecv cannot be called or is no longer applicable. This method can be
472	* called from any context.
473	*
474	* @returns INTNETSWDECISION_BROADCAST, INTNETSWDECISION_INTNET or
475	* INTNETSWDECISION_TRUNK. The source is excluded from broadcast &
476	* trunk, of course.
477	*
478	* @param pSwitchPort Pointer to this structure.
479	* @param pvHdrs Pointer to the packet headers.
480	* @param cbHdrs Size of the packet headers. This must be at least 6
481	* bytes (the destination MAC address), but should if
482	* possible also include any VLAN tag and network
483	* layer header (wireless mac address sharing).
484	* @param fSrc Where this frame comes from. Only one bit should be
485	* set!
486	*
487	* @remarks Will only grab the switch table spinlock (interrupt safe). May
488	* signal an event semaphore iff we're racing network cleanup. The
489	* caller must be busy when calling.
490	*/
491	DECLR0CALLBACKMEMBER(INTNETSWDECISION, pfnPreRecv,(PINTNETTRUNKSWPORT pSwitchPort,
492	void const *pvHdrs, size_t cbHdrs, uint32_t fSrc));
493
494	/**
495	* Incoming frame.
496	*
497	* The frame may be modified when the trunk port on the switch is set to share
498	* the mac address of the host when hitting the wire. Currently frames
499	* containing ARP packets are subject to this, later other protocols like
500	* NDP/ICMPv6 may need editing as well when operating in this mode. The edited
501	* packet should be forwarded to the host/wire when @c false is returned.
502	*
503	* @returns true if we've handled it and it should be dropped.
504	* false if it should hit the wire/host.
505	*
506	* @param pSwitchPort Pointer to this structure.
507	* @param pvIf Pointer to the interface which received this frame
508	* if available. Can be NULL.
509	* @param pSG The (scatter /) gather structure for the frame. This
510	* will only be use during the call, so a temporary one can
511	* be used. The Phys member will not be used.
512	* @param fSrc Where this frame comes from. Exactly one bit shall be
513	* set!
514	*
515	* @remarks Will only grab the switch table spinlock (interrupt safe). Will
516	* signal event semaphores. The caller must be busy when calling.
517	*
518	* @remarks NAT and TAP will use this interface.
519	*
520	* @todo Do any of the host require notification before frame modifications?
521	* If so, we'll add a callback to INTNETTRUNKIFPORT for this
522	* (pfnSGModifying) and a SG flag.
523	*/
524	DECLR0CALLBACKMEMBER(bool, pfnRecv,(PINTNETTRUNKSWPORT pSwitchPort, void *pvIf, PINTNETSG pSG, uint32_t fSrc));
525
526	/**
527	* Retain a SG.
528	*
529	* @param pSwitchPort Pointer to this structure.
530	* @param pSG Pointer to the (scatter /) gather structure.
531	*
532	* @remarks Will not grab any locks. The caller must be busy when calling.
533	*/
534	DECLR0CALLBACKMEMBER(void, pfnSGRetain,(PINTNETTRUNKSWPORT pSwitchPort, PINTNETSG pSG));
535
536	/**
537	* Release a SG.
538	*
539	* This is called by the pfnXmit code when done with a SG. This may safe
540	* be done in an asynchronous manner.
541	*
542	* @param pSwitchPort Pointer to this structure.
543	* @param pSG Pointer to the (scatter /) gather structure.
544	*
545	* @remarks May signal an event semaphore later on, currently code won't though.
546	* The caller is busy when making this call.
547	*/
548	DECLR0CALLBACKMEMBER(void, pfnSGRelease,(PINTNETTRUNKSWPORT pSwitchPort, PINTNETSG pSG));
549
550	/**
551	* Selects whether outgoing SGs should have their physical address set.
552	*
553	* By enabling physical addresses in the scatter / gather segments it should
554	* be possible to save some unnecessary address translation and memory locking
555	* in the network stack. (Internal networking knows the physical address for
556	* all the INTNETBUF data and that it's locked memory.) There is a negative
557	* side effects though, frames that crosses page boundaries will require
558	* multiple scather / gather segments.
559	*
560	* @returns The old setting.
561	*
562	* @param pSwitchPort Pointer to this structure.
563	* @param fEnable Whether to enable or disable it.
564	*
565	* @remarks Will not grab any locks. The caller must be busy when calling.
566	*/
567	DECLR0CALLBACKMEMBER(bool, pfnSetSGPhys,(PINTNETTRUNKSWPORT pSwitchPort, bool fEnable));
568
569	/**
570	* Reports the MAC address of the trunk.
571	*
572	* This is supposed to be called when creating, connection or reconnecting the
573	* trunk and when the MAC address is changed by the system admin.
574	*
575	* @param pSwitchPort Pointer to this structure.
576	* @param pMacAddr The MAC address.
577	*
578	* @remarks May take a spinlock or two. The caller must be busy when calling.
579	*/
580	DECLR0CALLBACKMEMBER(void, pfnReportMacAddress,(PINTNETTRUNKSWPORT pSwitchPort, PCRTMAC pMacAddr));
581
582	/**
583	* Reports the promicuousness of the interface.
584	*
585	* This is supposed to be called when creating, connection or reconnecting the
586	* trunk and when the mode is changed by the system admin.
587	*
588	* @param pSwitchPort Pointer to this structure.
589	* @param fPromiscuous True if the host operates the interface in
590	* promiscuous mode, false if not.
591	*
592	* @remarks May take a spinlock or two. The caller must be busy when calling.
593	*/
594	DECLR0CALLBACKMEMBER(void, pfnReportPromiscuousMode,(PINTNETTRUNKSWPORT pSwitchPort, bool fPromiscuous));
595
596	/**
597	* Reports the GSO capabilities of the host, wire or both.
598	*
599	* This is supposed to be used only when creating, connecting or reconnecting
600	* the trunk. It is assumed that the GSO capabilities are kind of static the
601	* rest of the time.
602	*
603	* @param pSwitchPort Pointer to this structure.
604	* @param fGsoCapabilities The GSO capability bit mask. The bits
605	* corresponds to the GSO type with the same value.
606	* @param fDst The destination mask (INTNETTRUNKDIR_XXX).
607	*
608	* @remarks Does not take any locks. The caller must be busy when calling.
609	*/
610	DECLR0CALLBACKMEMBER(void, pfnReportGsoCapabilities,(PINTNETTRUNKSWPORT pSwitchPort, uint32_t fGsoCapabilities, uint32_t fDst));
611
612	/**
613	* Reports the no-preemption-xmit capabilities of the host and wire.
614	*
615	* This is supposed to be used only when creating, connecting or reconnecting
616	* the trunk. It is assumed that the GSO capabilities are kind of static the
617	* rest of the time.
618	*
619	* @param pSwitchPort Pointer to this structure.
620	* @param fNoPreemptDsts The destinations (INTNETTRUNKDIR_XXX) which it
621	* is safe to transmit to with preemption disabled.
622	* @param fDst The destination mask (INTNETTRUNKDIR_XXX).
623	*
624	* @remarks Does not take any locks. The caller must be busy when calling.
625	*/
626	DECLR0CALLBACKMEMBER(void, pfnReportNoPreemptDsts,(PINTNETTRUNKSWPORT pSwitchPort, uint32_t fNoPreemptDsts));
627
628	/**
629	* Notifications about changes to host IP addresses.
630	*
631	* This is used by networks bridged to wifi that share mac with
632	* the host. Host reports changes to its IP addresses so that L3
633	* switching can ingore guests spoofing host's own IP addresses
634	*
635	* This callback may be null to indicate we are not interested.
636	*
637	* @param pSwitchPort Pointer to this structure.
638	* @param fAdded Whether address is added of removed.
639	* @param enmType Address type.
640	* @param pvAddr Pointer to the address.
641	*/
642	DECLR0CALLBACKMEMBER(void, pfnNotifyHostAddress,(PINTNETTRUNKSWPORT pSwitchPort, bool fAdded,
643	INTNETADDRTYPE enmType, const void *pvAddr));
644
645	/**
646	* OS triggered trunk disconnect.
647	*
648	* The caller shall must be busy when calling this method to prevent racing the
649	* network destruction code. This method will always consume this busy reference
650	* (released via @a pfnReleaseBusy using @a pIfPort).
651	*
652	* The caller shall guarantee that there are absolutely no chance of concurrent
653	* calls to this method on the same instance.
654	*
655	* @param pSwitchPort Pointer to this structure.
656	* @param pIfPort The interface port structure corresponding to @a
657	* pSwitchPort and which should be used when
658	* calling @a pfnReleaseBusy. This is required as
659	* the method may no longer have access to a valid
660	* @a pIfPort pointer.
661	* @param pfnReleaseBusy Callback for releasing the callers busy
662	* reference to it's side of things.
663	*/
664	DECLR0CALLBACKMEMBER(void, pfnDisconnect,(PINTNETTRUNKSWPORT pSwitchPort, PINTNETTRUNKIFPORT pIfPort,
665	PFNINTNETTRUNKIFPORTRELEASEBUSY pfnReleaseBusy));
666
667	/** Structure version number. (INTNETTRUNKSWPORT_VERSION) */
668	uint32_t u32VersionEnd;
669	} INTNETTRUNKSWPORT;
670
671	/**
672	* Version number for the INTNETTRUNKIFPORT::u32Version and
673	* INTNETTRUNKIFPORT::u32VersionEnd fields.
674	*
675	* NB: Version @c 0xA2CDf005 is consumed by 4.x branches for the
676	* backport of pfnNotifyHostAddress. On the next version bump use
677	* @c 0xA2CDf006 and remove this reminder.
678	*/
679	# define INTNETTRUNKSWPORT_VERSION UINT32_C(0xA2CDf004)
680
681
682	/**
683	* The trunk interface state used set by INTNETTRUNKIFPORT::pfnSetState.
684	*/
685	typedef enum INTNETTRUNKIFSTATE
686	{
687	/** The invalid zero entry. */
688	INTNETTRUNKIFSTATE_INVALID = 0,
689	/** The trunk is inactive. No calls to INTNETTRUNKSWPORT::pfnRecv or
690	* INTNETTRUNKSWPORT::pfnPreRecv. Calling other methods is OK. */
691	INTNETTRUNKIFSTATE_INACTIVE,
692	/** The trunk is active, no restrictions on methods or anything. */
693	INTNETTRUNKIFSTATE_ACTIVE,
694	/** The trunk is about to be disconnected from the internal network. No
695	* calls to any INTNETRUNKSWPORT methods. */
696	INTNETTRUNKIFSTATE_DISCONNECTING,
697	/** The end of the valid states. */
698	INTNETTRUNKIFSTATE_END,
699	/** The usual 32-bit type blow up hack. */
700	INTNETTRUNKIFSTATE_32BIT_HACK = 0x7fffffff
701	} INTNETTRUNKIFSTATE;
702
703
704	/**
705	* This is the port on the trunk interface, i.e. the driver side which the
706	* internal network is connected to.
707	*
708	* This is only used for the in-kernel trunk connections.
709	*/
710	typedef struct INTNETTRUNKIFPORT
711	{
712	/** Structure version number. (INTNETTRUNKIFPORT_VERSION) */
713	uint32_t u32Version;
714
715	/**
716	* Retain the object.
717	*
718	* It will normally be called while owning the internal network semaphore.
719	*
720	* @param pIfPort Pointer to this structure.
721	*
722	* @remarks May own the big mutex, no spinlocks.
723	*/
724	DECLR0CALLBACKMEMBER(void, pfnRetain,(PINTNETTRUNKIFPORT pIfPort));
725
726	/**
727	* Releases the object.
728	*
729	* This must be called for every pfnRetain call.
730	*
731	* @param pIfPort Pointer to this structure.
732	*
733	* @remarks May own the big mutex, no spinlocks.
734	*/
735	DECLR0CALLBACKMEMBER(void, pfnRelease,(PINTNETTRUNKIFPORT pIfPort));
736
737	/**
738	* Disconnect from the switch and release the object.
739	*
740	* The is the counter action of the
741	* INTNETTRUNKNETFLTFACTORY::pfnCreateAndConnect method.
742	*
743	* @param pIfPort Pointer to this structure.
744	*
745	* @remarks Owns the big mutex.
746	*/
747	DECLR0CALLBACKMEMBER(void, pfnDisconnectAndRelease,(PINTNETTRUNKIFPORT pIfPort));
748
749	/**
750	* Changes the state of the trunk interface.
751	*
752	* The interface is created in the inactive state (INTNETTRUNKIFSTATE_INACTIVE).
753	* When the first connect VM or service is activated, the internal network
754	* activates the trunk (INTNETTRUNKIFSTATE_ACTIVE). The state may then be set
755	* back and forth between INACTIVE and ACTIVE as VMs are paused, added and
756	* removed.
757	*
758	* Eventually though, the network is destroyed as a result of there being no
759	* more VMs left in it and the state is changed to disconnecting
760	* (INTNETTRUNKIFSTATE_DISCONNECTING) and pfnWaitForIdle is called to make sure
761	* there are no active calls in either direction when pfnDisconnectAndRelease is
762	* called.
763	*
764	* A typical operation to performed by this method is to enable/disable promiscuous
765	* mode on the host network interface when entering/leaving the active state.
766	*
767	* @returns The previous state.
768	*
769	* @param pIfPort Pointer to this structure.
770	* @param enmState The new state.
771	*
772	* @remarks Owns the big mutex. No racing pfnSetState, pfnWaitForIdle,
773	* pfnDisconnectAndRelease or INTNETTRUNKFACTORY::pfnCreateAndConnect
774	* calls.
775	*/
776	DECLR0CALLBACKMEMBER(INTNETTRUNKIFSTATE, pfnSetState,(PINTNETTRUNKIFPORT pIfPort, INTNETTRUNKIFSTATE enmState));
777
778	/**
779	* Notifies when the MAC address of an interface is set or changes.
780	*
781	* @param pIfPort Pointer to this structure.
782	* @param pvIfData Pointer to the trunk's interface data (see
783	* pfnConnectInterface).
784	* @param pMac Pointer to the MAC address of the connecting VM NIC.
785	*
786	* @remarks Only busy references to the trunk and the interface.
787	*/
788	DECLR0CALLBACKMEMBER(void, pfnNotifyMacAddress,(PINTNETTRUNKIFPORT pIfPort, void *pvIfData, PCRTMAC pMac));
789
790	/**
791	* Called when an interface is connected to the network.
792	*
793	* @returns IPRT status code.
794	* @param pIfPort Pointer to this structure.
795	* @param pvIf Opaque pointer to the interface being connected.
796	* For use INTNETTRUNKSWPORT::pfnRecv.
797	* @param ppvIfData Pointer to a pointer variable that the trunk
798	* implementation can use to associate data with the
799	* interface. This pointer will be passed to the
800	* pfnXmit, pfnNotifyMacAddress and
801	* pfnDisconnectInterface methods.
802	*
803	* @remarks Owns the big mutex. No racing pfnDisconnectAndRelease.
804	*/
805	DECLR0CALLBACKMEMBER(int, pfnConnectInterface,(PINTNETTRUNKIFPORT pIfPort, void pvIf, void *ppvIfData));
806
807	/**
808	* Called when an interface is disconnected from the network.
809	*
810	* @param pIfPort Pointer to this structure.
811	* @param pvIfData Pointer to the trunk's interface data (see
812	* pfnConnectInterface).
813	*
814	* @remarks Owns the big mutex. No racing pfnDisconnectAndRelease.
815	*/
816	DECLR0CALLBACKMEMBER(void, pfnDisconnectInterface,(PINTNETTRUNKIFPORT pIfPort, void *pvIfData));
817
818	/**
819	* Waits for the interface to become idle.
820	*
821	* This method must be called before disconnecting and releasing the object in
822	* order to prevent racing incoming/outgoing frames and device
823	* enabling/disabling.
824	*
825	* @returns IPRT status code (see RTSemEventWait).
826	* @param pIfPort Pointer to this structure.
827	* @param cMillies The number of milliseconds to wait. 0 means
828	* no waiting at all. Use RT_INDEFINITE_WAIT for
829	* an indefinite wait.
830	*
831	* @remarks Owns the big mutex. No racing pfnDisconnectAndRelease.
832	*/
833	DECLR0CALLBACKMEMBER(int, pfnWaitForIdle,(PINTNETTRUNKIFPORT pIfPort, uint32_t cMillies));
834
835	/**
836	* Transmit a frame.
837	*
838	* @return VBox status code. Error generally means we'll drop the frame.
839	* @param pIfPort Pointer to this structure.
840	* @param pvIfData Pointer to the trunk's interface data (see
841	* pfnConnectInterface).
842	* @param pSG Pointer to the (scatter /) gather structure for the frame.
843	* This may or may not be a temporary buffer. If it's temporary
844	* the transmit operation(s) then it's required to make a copy
845	* of the frame unless it can be transmitted synchronously.
846	* @param fDst The destination mask. At least one bit will be set.
847	*
848	* @remarks No locks. May be called concurrently on several threads.
849	*/
850	DECLR0CALLBACKMEMBER(int, pfnXmit,(PINTNETTRUNKIFPORT pIfPort, void *pvIfData, PINTNETSG pSG, uint32_t fDst));
851
852	/** Structure version number. (INTNETTRUNKIFPORT_VERSION) */
853	uint32_t u32VersionEnd;
854	} INTNETTRUNKIFPORT;
855
856	/** Version number for the INTNETTRUNKIFPORT::u32Version and INTNETTRUNKIFPORT::u32VersionEnd fields. */
857	#define INTNETTRUNKIFPORT_VERSION UINT32_C(0xA2CDe001)
858
859
860	/**
861	* The component factory interface for create a network
862	* interface filter (like VBoxNetFlt).
863	*/
864	typedef struct INTNETTRUNKFACTORY
865	{
866	/**
867	* Release this factory.
868	*
869	* SUPR0ComponentQueryFactory (SUPDRVFACTORY::pfnQueryFactoryInterface to be precise)
870	* will retain a reference to the factory and the caller has to call this method to
871	* release it once the pfnCreateAndConnect call(s) has been done.
872	*
873	* @param pIfFactory Pointer to this structure.
874	*/
875	DECLR0CALLBACKMEMBER(void, pfnRelease,(struct INTNETTRUNKFACTORY *pIfFactory));
876
877	/**
878	* Create an instance for the specfied host interface and connects it
879	* to the internal network trunk port.
880	*
881	* The initial interface active state is false (suspended).
882	*
883	*
884	* @returns VBox status code.
885	* @retval VINF_SUCCESS and *ppIfPort set on success.
886	* @retval VERR_INTNET_FLT_IF_NOT_FOUND if the interface was not found.
887	* @retval VERR_INTNET_FLT_IF_BUSY if the interface is already connected.
888	* @retval VERR_INTNET_FLT_IF_FAILED if it failed for some other reason.
889	*
890	* @param pIfFactory Pointer to this structure.
891	* @param pszName The interface name (OS specific).
892	* @param pSwitchPort Pointer to the port interface on the switch that
893	* this interface is being connected to.
894	* @param fFlags Creation flags, see below.
895	* @param ppIfPort Where to store the pointer to the interface port
896	* on success.
897	*
898	* @remarks Called while owning the network and the out-bound trunk semaphores.
899	*/
900	DECLR0CALLBACKMEMBER(int, pfnCreateAndConnect,(struct INTNETTRUNKFACTORY pIfFactory, const char pszName,
901	PINTNETTRUNKSWPORT pSwitchPort, uint32_t fFlags,
902	PINTNETTRUNKIFPORT *ppIfPort));
903	} INTNETTRUNKFACTORY;
904	/** Pointer to the trunk factory. */
905	typedef INTNETTRUNKFACTORY *PINTNETTRUNKFACTORY;
906
907	/** The UUID for the (current) trunk factory. (case sensitive) */
908	#define INTNETTRUNKFACTORY_UUID_STR "de504d93-1d1e-4781-8b73-6ea39a0e36a2"
909
910	/** @name INTNETTRUNKFACTORY::pfnCreateAndConnect flags.
911	* @{ */
912	/** Don't put the filtered interface in promiscuous mode.
913	* This is used for wireless interface since these can misbehave if
914	* we try to put them in promiscuous mode. (Wireless interfaces are
915	* normally bridged on level 3 instead of level 2.) */
916	#define INTNETTRUNKFACTORY_FLAG_NO_PROMISC RT_BIT_32(0)
917	/** @} */
918
919
920	/**
921	* The trunk connection type.
922	*
923	* Used by IntNetR0Open and associated interfaces.
924	*/
925	typedef enum INTNETTRUNKTYPE
926	{
927	/** Invalid trunk type. */
928	kIntNetTrunkType_Invalid = 0,
929	/** No trunk connection. */
930	kIntNetTrunkType_None,
931	/** We don't care which kind of trunk connection if the network exists,
932	* if it doesn't exist create it without a connection. */
933	kIntNetTrunkType_WhateverNone,
934	/** VirtualBox host network interface filter driver.
935	* The trunk name is the name of the host network interface. */
936	kIntNetTrunkType_NetFlt,
937	/** VirtualBox adapter host driver. */
938	kIntNetTrunkType_NetAdp,
939	/** Nat service (ring-0). */
940	kIntNetTrunkType_SrvNat,
941	/** The end of valid types. */
942	kIntNetTrunkType_End,
943	/** The usual 32-bit hack. */
944	kIntNetTrunkType_32bitHack = 0x7fffffff
945	} INTNETTRUNKTYPE;
946
947	/** @name IntNetR0Open flags.
948	*
949	* The desired policy options must be specified explicitly, if omitted it is
950	* understood that whatever is current or default is fine with the caller.
951	*
952	* @todo Move the policies out of the flags, use three new parameters.
953	*
954	* @{ */
955	/** Share the MAC address with the host when sending something to the wire via the trunk.
956	* This is typically used when the trunk is a NetFlt for a wireless interface. */
957	#define INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE RT_BIT_32(0)
958	/** Require that the current security and promiscuous policies of the network
959	* is exactly as the ones specified in this open network request.
960	*
961	* Use this with INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES to prevent
962	* restrictions from being lifted. If no further policy changes are desired,
963	* apply the relevant _FIXED flags. */
964	#define INTNET_OPEN_FLAGS_REQUIRE_EXACT RT_BIT_32(1)
965	/** Require that the security and promiscuous policies of the network is at
966	* least as restrictive as specified this request specifies and prevent them
967	* being lifted later on. */
968	#define INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES RT_BIT_32(2)
969
970	/** Network access policy: Fixed if set, changable if clear. */
971	#define INTNET_OPEN_FLAGS_ACCESS_FIXED RT_BIT_32(3)
972	/** Network access policy: Public network. */
973	#define INTNET_OPEN_FLAGS_ACCESS_PUBLIC RT_BIT_32(4)
974	/** Network access policy: Restricted network. */
975	#define INTNET_OPEN_FLAGS_ACCESS_RESTRICTED RT_BIT_32(5)
976
977	/** Promiscuous mode policy: Is it fixed or changable by new participants? */
978	#define INTNET_OPEN_FLAGS_PROMISC_FIXED RT_BIT_32(6)
979	/** Promiscuous mode policy: Allow the clients to request it. */
980	#define INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS RT_BIT_32(7)
981	/** Promiscuous mode policy: Deny the clients from requesting it. */
982	#define INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS RT_BIT_32(8)
983	/** Promiscuous mode policy: Allow the trunk-host to request it. */
984	#define INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST RT_BIT_32(9)
985	/** Promiscuous mode policy: Deny the trunk-host from requesting it. */
986	#define INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST RT_BIT_32(10)
987	/** Promiscuous mode policy: Allow the trunk-wire to request it. */
988	#define INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE RT_BIT_32(11)
989	/** Promiscuous mode policy: Deny the trunk-wire from requesting it. */
990	#define INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE RT_BIT_32(12)
991
992	/** Interface policies: Is it fixed or changable (by admin).
993	* @note Per interface, not network wide. */
994	#define INTNET_OPEN_FLAGS_IF_FIXED RT_BIT_32(13)
995	/** Interface promiscuous mode policy: Allow the interface to request it. */
996	#define INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW RT_BIT_32(14)
997	/** Interface promiscuous mode policy: Deny the interface from requesting it. */
998	#define INTNET_OPEN_FLAGS_IF_PROMISC_DENY RT_BIT_32(15)
999	/** Interface promiscuous mode policy: See unrelated trunk traffic. */
1000	#define INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK RT_BIT_32(16)
1001	/** Interface promiscuous mode policy: No unrelated trunk traffic visible. */
1002	#define INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK RT_BIT_32(17)
1003
1004	/** Trunk policy: Fixed if set, changable if clear.
1005	* @remarks The DISABLED options are considered more restrictive by
1006	* INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES. */
1007	#define INTNET_OPEN_FLAGS_TRUNK_FIXED RT_BIT_32(18)
1008	/** Trunk policy: The host end should be enabled. */
1009	#define INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED RT_BIT_32(19)
1010	/** Trunk policy: The host end should be disabled. */
1011	#define INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED RT_BIT_32(20)
1012	/** Trunk policy: The host should only see packets destined for it. */
1013	#define INTNET_OPEN_FLAGS_TRUNK_HOST_CHASTE_MODE RT_BIT_32(21)
1014	/** Trunk policy: The host should see all packets. */
1015	#define INTNET_OPEN_FLAGS_TRUNK_HOST_PROMISC_MODE RT_BIT_32(22)
1016	/** Trunk policy: The wire end should be enabled. */
1017	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED RT_BIT_32(23)
1018	/** Trunk policy: The wire end should be disabled. */
1019	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED RT_BIT_32(24)
1020	/** Trunk policy: The wire should only see packets destined for it. */
1021	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_CHASTE_MODE RT_BIT_32(25)
1022	/** Trunk policy: The wire should see all packets. */
1023	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE RT_BIT_32(26)
1024
1025	/** Used to enable host specific workarounds.
1026	*
1027	* On darwin this will clear ip_tos in DHCP packets when
1028	* INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE is also set. */
1029	#define INTNET_OPEN_FLAGS_WORKAROUND_1 RT_BIT_32(31)
1030
1031
1032	/** The mask of valid flags. */
1033	#define INTNET_OPEN_FLAGS_MASK UINT32_C(0x83ffffff)
1034	/** The mask of all flags use to fix (lock) settings. */
1035	#define INTNET_OPEN_FLAGS_FIXED_MASK \
1036	( INTNET_OPEN_FLAGS_ACCESS_FIXED \
1037	\| INTNET_OPEN_FLAGS_PROMISC_FIXED \
1038	\| INTNET_OPEN_FLAGS_IF_FIXED \
1039	\| INTNET_OPEN_FLAGS_TRUNK_FIXED )
1040
1041	/** The mask of all policy pairs. */
1042	#define INTNET_OPEN_FLAGS_PAIR_MASK \
1043	( INTNET_OPEN_FLAGS_ACCESS_PUBLIC \| INTNET_OPEN_FLAGS_ACCESS_RESTRICTED \
1044	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS \| INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS \
1045	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST \| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST \
1046	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE \| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE \
1047	\| INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW \| INTNET_OPEN_FLAGS_IF_PROMISC_DENY \
1048	\| INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK \| INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK \
1049	\| INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED \| INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED \
1050	\| INTNET_OPEN_FLAGS_TRUNK_HOST_PROMISC_MODE \| INTNET_OPEN_FLAGS_TRUNK_HOST_CHASTE_MODE \
1051	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED \| INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED \
1052	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE \| INTNET_OPEN_FLAGS_TRUNK_WIRE_CHASTE_MODE \
1053	)
1054	/** The mask of all relaxed policy bits. */
1055	#define INTNET_OPEN_FLAGS_RELAXED_MASK \
1056	( INTNET_OPEN_FLAGS_ACCESS_PUBLIC \
1057	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS \
1058	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST \
1059	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE \
1060	\| INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW \
1061	\| INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK \
1062	\| INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED \
1063	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE \
1064	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED \
1065	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE \
1066	)
1067	/** The mask of all strict policy bits. */
1068	#define INTNET_OPEN_FLAGS_STRICT_MASK \
1069	( INTNET_OPEN_FLAGS_ACCESS_RESTRICTED \
1070	\| INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS \
1071	\| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST \
1072	\| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE \
1073	\| INTNET_OPEN_FLAGS_IF_PROMISC_DENY \
1074	\| INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK \
1075	\| INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED \
1076	\| INTNET_OPEN_FLAGS_TRUNK_HOST_CHASTE_MODE \
1077	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED \
1078	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_CHASTE_MODE \
1079	)
1080	/** @} */
1081
1082	/** The maximum length of a network name. */
1083	#define INTNET_MAX_NETWORK_NAME 128
1084
1085	/** The maximum length of a trunk name. */
1086	#define INTNET_MAX_TRUNK_NAME 64
1087
1088
1089	/**
1090	* Request buffer for IntNetR0OpenReq / VMMR0_DO_INTNET_OPEN.
1091	* @see IntNetR0Open.
1092	*/
1093	typedef struct INTNETOPENREQ
1094	{
1095	/** The request header. */
1096	SUPVMMR0REQHDR Hdr;
1097	/** Alternative to passing the taking the session from the VM handle.
1098	* Either use this member or use the VM handle, don't do both. */
1099	PSUPDRVSESSION pSession;
1100	/** The network name. (input) */
1101	char szNetwork[INTNET_MAX_NETWORK_NAME];
1102	/** What to connect to the trunk port. (input)
1103	* This is specific to the trunk type below. */
1104	char szTrunk[INTNET_MAX_TRUNK_NAME];
1105	/** The type of trunk link (NAT, Filter, TAP, etc). (input) */
1106	INTNETTRUNKTYPE enmTrunkType;
1107	/** Flags, see INTNET_OPEN_FLAGS_. (input) /
1108	uint32_t fFlags;
1109	/** The size of the send buffer. (input) */
1110	uint32_t cbSend;
1111	/** The size of the receive buffer. (input) */
1112	uint32_t cbRecv;
1113	/** The handle to the network interface. (output) */
1114	INTNETIFHANDLE hIf;
1115	} INTNETOPENREQ;
1116	/** Pointer to an IntNetR0OpenReq / VMMR0_DO_INTNET_OPEN request buffer. */
1117	typedef INTNETOPENREQ *PINTNETOPENREQ;
1118
1119	INTNETR0DECL(int) IntNetR0OpenReq(PSUPDRVSESSION pSession, PINTNETOPENREQ pReq);
1120
1121
1122	/**
1123	* Request buffer for IntNetR0IfCloseReq / VMMR0_DO_INTNET_IF_CLOSE.
1124	* @see IntNetR0IfClose.
1125	*/
1126	typedef struct INTNETIFCLOSEREQ
1127	{
1128	/** The request header. */
1129	SUPVMMR0REQHDR Hdr;
1130	/** Alternative to passing the taking the session from the VM handle.
1131	* Either use this member or use the VM handle, don't do both. */
1132	PSUPDRVSESSION pSession;
1133	/** The handle to the network interface. */
1134	INTNETIFHANDLE hIf;
1135	} INTNETIFCLOSEREQ;
1136	/** Pointer to an IntNetR0IfCloseReq / VMMR0_DO_INTNET_IF_CLOSE request
1137	* buffer. */
1138	typedef INTNETIFCLOSEREQ *PINTNETIFCLOSEREQ;
1139
1140	INTNETR0DECL(int) IntNetR0IfCloseReq(PSUPDRVSESSION pSession, PINTNETIFCLOSEREQ pReq);
1141
1142
1143	/**
1144	* Request buffer for IntNetR0IfGetRing3BufferReq /
1145	* VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS.
1146	* @see IntNetR0IfGetRing3Buffer.
1147	*/
1148	typedef struct INTNETIFGETBUFFERPTRSREQ
1149	{
1150	/** The request header. */
1151	SUPVMMR0REQHDR Hdr;
1152	/** Alternative to passing the taking the session from the VM handle.
1153	* Either use this member or use the VM handle, don't do both. */
1154	PSUPDRVSESSION pSession;
1155	/** Handle to the interface. */
1156	INTNETIFHANDLE hIf;
1157	/** The pointer to the ring-3 buffer. (output) */
1158	R3PTRTYPE(PINTNETBUF) pRing3Buf;
1159	/** The pointer to the ring-0 buffer. (output) */
1160	R0PTRTYPE(PINTNETBUF) pRing0Buf;
1161	} INTNETIFGETBUFFERPTRSREQ;
1162	/** Pointer to an IntNetR0IfGetRing3BufferReq /
1163	* VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS request buffer. */
1164	typedef INTNETIFGETBUFFERPTRSREQ *PINTNETIFGETBUFFERPTRSREQ;
1165
1166	INTNETR0DECL(int) IntNetR0IfGetBufferPtrsReq(PSUPDRVSESSION pSession, PINTNETIFGETBUFFERPTRSREQ pReq);
1167
1168
1169	/**
1170	* Request buffer for IntNetR0IfSetPromiscuousModeReq /
1171	* VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE.
1172	* @see IntNetR0IfSetPromiscuousMode.
1173	*/
1174	typedef struct INTNETIFSETPROMISCUOUSMODEREQ
1175	{
1176	/** The request header. */
1177	SUPVMMR0REQHDR Hdr;
1178	/** Alternative to passing the taking the session from the VM handle.
1179	* Either use this member or use the VM handle, don't do both. */
1180	PSUPDRVSESSION pSession;
1181	/** Handle to the interface. */
1182	INTNETIFHANDLE hIf;
1183	/** The new promiscuous mode. */
1184	bool fPromiscuous;
1185	} INTNETIFSETPROMISCUOUSMODEREQ;
1186	/** Pointer to an IntNetR0IfSetPromiscuousModeReq /
1187	* VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE request buffer. */
1188	typedef INTNETIFSETPROMISCUOUSMODEREQ *PINTNETIFSETPROMISCUOUSMODEREQ;
1189
1190	INTNETR0DECL(int) IntNetR0IfSetPromiscuousModeReq(PSUPDRVSESSION pSession, PINTNETIFSETPROMISCUOUSMODEREQ pReq);
1191
1192
1193	/**
1194	* Request buffer for IntNetR0IfSetMacAddressReq /
1195	* VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS.
1196	* @see IntNetR0IfSetMacAddress.
1197	*/
1198	typedef struct INTNETIFSETMACADDRESSREQ
1199	{
1200	/** The request header. */
1201	SUPVMMR0REQHDR Hdr;
1202	/** Alternative to passing the taking the session from the VM handle.
1203	* Either use this member or use the VM handle, don't do both. */
1204	PSUPDRVSESSION pSession;
1205	/** Handle to the interface. */
1206	INTNETIFHANDLE hIf;
1207	/** The new MAC address. */
1208	RTMAC Mac;
1209	} INTNETIFSETMACADDRESSREQ;
1210	/** Pointer to an IntNetR0IfSetMacAddressReq /
1211	* VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS request buffer. */
1212	typedef INTNETIFSETMACADDRESSREQ *PINTNETIFSETMACADDRESSREQ;
1213
1214	INTNETR0DECL(int) IntNetR0IfSetMacAddressReq(PSUPDRVSESSION pSession, PINTNETIFSETMACADDRESSREQ pReq);
1215
1216
1217	/**
1218	* Request buffer for IntNetR0IfSetActiveReq / VMMR0_DO_INTNET_IF_SET_ACTIVE.
1219	* @see IntNetR0IfSetActive.
1220	*/
1221	typedef struct INTNETIFSETACTIVEREQ
1222	{
1223	/** The request header. */
1224	SUPVMMR0REQHDR Hdr;
1225	/** Alternative to passing the taking the session from the VM handle.
1226	* Either use this member or use the VM handle, don't do both. */
1227	PSUPDRVSESSION pSession;
1228	/** Handle to the interface. */
1229	INTNETIFHANDLE hIf;
1230	/** The new state. */
1231	bool fActive;
1232	} INTNETIFSETACTIVEREQ;
1233	/** Pointer to an IntNetR0IfSetActiveReq / VMMR0_DO_INTNET_IF_SET_ACTIVE
1234	* request buffer. */
1235	typedef INTNETIFSETACTIVEREQ *PINTNETIFSETACTIVEREQ;
1236
1237	INTNETR0DECL(int) IntNetR0IfSetActiveReq(PSUPDRVSESSION pSession, PINTNETIFSETACTIVEREQ pReq);
1238
1239
1240	/**
1241	* Request buffer for IntNetR0IfSendReq / VMMR0_DO_INTNET_IF_SEND.
1242	* @see IntNetR0IfSend.
1243	*/
1244	typedef struct INTNETIFSENDREQ
1245	{
1246	/** The request header. */
1247	SUPVMMR0REQHDR Hdr;
1248	/** Alternative to passing the taking the session from the VM handle.
1249	* Either use this member or use the VM handle, don't do both. */
1250	PSUPDRVSESSION pSession;
1251	/** Handle to the interface. */
1252	INTNETIFHANDLE hIf;
1253	} INTNETIFSENDREQ;
1254	/** Pointer to an IntNetR0IfSend() argument package. */
1255	typedef INTNETIFSENDREQ *PINTNETIFSENDREQ;
1256
1257	INTNETR0DECL(int) IntNetR0IfSendReq(PSUPDRVSESSION pSession, PINTNETIFSENDREQ pReq);
1258
1259
1260	/**
1261	* Request buffer for IntNetR0IfWaitReq / VMMR0_DO_INTNET_IF_WAIT.
1262	* @see IntNetR0IfWait.
1263	*/
1264	typedef struct INTNETIFWAITREQ
1265	{
1266	/** The request header. */
1267	SUPVMMR0REQHDR Hdr;
1268	/** Alternative to passing the taking the session from the VM handle.
1269	* Either use this member or use the VM handle, don't do both. */
1270	PSUPDRVSESSION pSession;
1271	/** Handle to the interface. */
1272	INTNETIFHANDLE hIf;
1273	/** The number of milliseconds to wait. */
1274	uint32_t cMillies;
1275	} INTNETIFWAITREQ;
1276	/** Pointer to an IntNetR0IfWaitReq / VMMR0_DO_INTNET_IF_WAIT request buffer. */
1277	typedef INTNETIFWAITREQ *PINTNETIFWAITREQ;
1278
1279	INTNETR0DECL(int) IntNetR0IfWaitReq(PSUPDRVSESSION pSession, PINTNETIFWAITREQ pReq);
1280
1281
1282	/**
1283	* Request buffer for IntNetR0IfAbortWaitReq / VMMR0_DO_INTNET_IF_ABORT_WAIT.
1284	* @see IntNetR0IfAbortWait.
1285	*/
1286	typedef struct INTNETIFABORTWAITREQ
1287	{
1288	/** The request header. */
1289	SUPVMMR0REQHDR Hdr;
1290	/** Alternative to passing the taking the session from the VM handle.
1291	* Either use this member or use the VM handle, don't do both. */
1292	PSUPDRVSESSION pSession;
1293	/** Handle to the interface. */
1294	INTNETIFHANDLE hIf;
1295	/** Set this to fend off all future IntNetR0Wait calls. */
1296	bool fNoMoreWaits;
1297	} INTNETIFABORTWAITREQ;
1298	/** Pointer to an IntNetR0IfAbortWaitReq / VMMR0_DO_INTNET_IF_ABORT_WAIT
1299	* request buffer. */
1300	typedef INTNETIFABORTWAITREQ *PINTNETIFABORTWAITREQ;
1301
1302	INTNETR0DECL(int) IntNetR0IfAbortWaitReq(PSUPDRVSESSION pSession, PINTNETIFABORTWAITREQ pReq);
1303
1304	/**
1305	* Callback function for use with IntNetR3Open to signalling incoming data.
1306	*
1307	* @param hIf Interface handle.
1308	* @param pvUser User parameter.
1309	*/
1310	typedef DECLCALLBACKTYPE(void, FNINTNETIFRECVAVAIL,(INTNETIFHANDLE hIf, void *pvUser));
1311	/** Pointer to a FNINTNETIFRECVAVAIL callback. */
1312	typedef FNINTNETIFRECVAVAIL *PFNINTNETIFRECVAVAIL;
1313
1314
1315	#if defined(IN_RING0) \|\| defined(IN_INTNET_TESTCASE)
1316	/** @name
1317	* @{
1318	*/
1319
1320	INTNETR0DECL(int) IntNetR0Init(void);
1321	INTNETR0DECL(void) IntNetR0Term(void);
1322	INTNETR0DECL(int) IntNetR0Open(PSUPDRVSESSION pSession, const char *pszNetwork,
1323	INTNETTRUNKTYPE enmTrunkType, const char *pszTrunk, uint32_t fFlags,
1324	uint32_t cbSend, uint32_t cbRecv, PFNINTNETIFRECVAVAIL pfnRecvAvail, void *pvUser,
1325	PINTNETIFHANDLE phIf);
1326	INTNETR0DECL(uint32_t) IntNetR0GetNetworkCount(void);
1327
1328	INTNETR0DECL(int) IntNetR0IfClose(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession);
1329	INTNETR0DECL(int) IntNetR0IfGetBufferPtrs(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession,
1330	R3PTRTYPE(PINTNETBUF) ppRing3Buf, R0PTRTYPE(PINTNETBUF) ppRing0Buf);
1331	INTNETR0DECL(int) IntNetR0IfSetPromiscuousMode(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, bool fPromiscuous);
1332	INTNETR0DECL(int) IntNetR0IfSetMacAddress(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, PCRTMAC pMac);
1333	INTNETR0DECL(int) IntNetR0IfSetActive(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, bool fActive);
1334	INTNETR0DECL(int) IntNetR0IfSend(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession);
1335	INTNETR0DECL(int) IntNetR0IfWait(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, uint32_t cMillies);
1336	INTNETR0DECL(int) IntNetR0IfAbortWait(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, bool fNoMoreWaits);
1337
1338	/** @} */
1339	#endif /* IN_RING0 */
1340
1341	#if defined(VBOX_WITH_INTNET_SERVICE_IN_R3) && defined(IN_RING3)
1342	INTNETR3DECL(int) IntNetR3Open(PSUPDRVSESSION pSession, const char *pszNetwork,
1343	INTNETTRUNKTYPE enmTrunkType, const char *pszTrunk, uint32_t fFlags,
1344	uint32_t cbSend, uint32_t cbRecv, PFNINTNETIFRECVAVAIL pfnRecvAvail,
1345	void *pvUserRecvAvail, PINTNETIFHANDLE phIf);
1346	#endif
1347
1348	RT_C_DECLS_END
1349
1350	#endif /* !VBOX_INCLUDED_intnet_h */

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source: vbox/trunk/include/VBox/intnet.h

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