intnet.h@ 101084

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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	uint16_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	INTNETSEG aSegs[1];
359	} INTNETSG;
360	AssertCompileSizeAlignment(INTNETSG, 8);
361	/** Pointer to a scatter / gather list. */
362	typedef INTNETSG *PINTNETSG;
363	/** Pointer to a const scatter / gather list. */
364	typedef INTNETSG const *PCINTNETSG;
365
366	/** @name INTNETSG::fFlags definitions.
367	* @{ */
368	/** Set if the SG is free. */
369	#define INTNETSG_FLAGS_FREE RT_BIT_32(1)
370	/** Set if the SG is a temporary one that will become invalid upon return.
371	* Try to finish using it before returning, and if that's not possible copy
372	* to other buffers.
373	* When not set, the callee should always free the SG.
374	* Attempts to free it made by the callee will be quietly ignored. */
375	#define INTNETSG_FLAGS_TEMP RT_BIT_32(2)
376	/** ARP packet, IPv4 + MAC.
377	* @internal */
378	#define INTNETSG_FLAGS_ARP_IPV4 RT_BIT_32(3)
379	/** Copied to the temporary buffer.
380	* @internal */
381	#define INTNETSG_FLAGS_PKT_CP_IN_TMP RT_BIT_32(4)
382	/** @} */
383
384
385	/** @name Direction (frame source or destination)
386	* @{ */
387	/** To/From the wire. */
388	#define INTNETTRUNKDIR_WIRE RT_BIT_32(0)
389	/** To/From the host. */
390	#define INTNETTRUNKDIR_HOST RT_BIT_32(1)
391	/** Mask of valid bits. */
392	#define INTNETTRUNKDIR_VALID_MASK UINT32_C(3)
393	/** @} */
394
395	/**
396	* Switch decisions returned by INTNETTRUNKSWPORT::pfnPreRecv.
397	*/
398	typedef enum INTNETSWDECISION
399	{
400	/** The usual invalid zero value. */
401	INTNETSWDECISION_INVALID = 0,
402	/** Everywhere. */
403	INTNETSWDECISION_BROADCAST,
404	/** Only to the internal network. */
405	INTNETSWDECISION_INTNET,
406	/** Only for the trunk (host/wire). */
407	INTNETSWDECISION_TRUNK,
408	/** Used internally to indicate that the packet cannot be handled in the
409	* current context. */
410	INTNETSWDECISION_BAD_CONTEXT,
411	/** Used internally to indicate that the packet should be dropped. */
412	INTNETSWDECISION_DROP,
413	/** The usual 32-bit type expansion. */
414	INTNETSWDECISION_32BIT_HACK = 0x7fffffff
415	} INTNETSWDECISION;
416
417
418	/**
419	* Network layer address type.
420	*/
421	typedef enum INTNETADDRTYPE
422	{
423	/** The invalid 0 entry. */
424	kIntNetAddrType_Invalid = 0,
425	/** IP version 4. */
426	kIntNetAddrType_IPv4,
427	/** IP version 6. */
428	kIntNetAddrType_IPv6,
429	/** IPX. */
430	kIntNetAddrType_IPX,
431	/** The end of the valid values. */
432	kIntNetAddrType_End,
433	/** The usual 32-bit hack. */
434	kIntNetAddrType_32BitHack = 0x7fffffff
435	} INTNETADDRTYPE;
436
437
438	/** Pointer to the interface side of a trunk port. */
439	typedef struct INTNETTRUNKIFPORT *PINTNETTRUNKIFPORT;
440
441
442	/**
443	* Special variation of INTNETTRUNKIFPORT::pfnRelease for use with
444	* INTNETTRUNKSWPORT::pfnDisconnect.
445	*
446	* @param pIfPort Pointer to the INTNETTRUNKIFPORT instance.
447	*/
448	typedef DECLCALLBACKTYPE(void, FNINTNETTRUNKIFPORTRELEASEBUSY,(PINTNETTRUNKIFPORT pIfPort));
449	/** Pointer to a FNINTNETTRUNKIFPORTRELEASEBUSY function. */
450	typedef FNINTNETTRUNKIFPORTRELEASEBUSY *PFNINTNETTRUNKIFPORTRELEASEBUSY;
451
452
453	/** Pointer to the switch side of a trunk port. */
454	typedef struct INTNETTRUNKSWPORT *PINTNETTRUNKSWPORT;
455	/**
456	* This is the port on the internal network 'switch', i.e.
457	* what the driver is connected to.
458	*
459	* This is only used for the in-kernel trunk connections.
460	*/
461	typedef struct INTNETTRUNKSWPORT
462	{
463	/** Structure version number. (INTNETTRUNKSWPORT_VERSION) */
464	uint32_t u32Version;
465
466	/**
467	* Examine the packet and figure out where it is going.
468	*
469	* This method is for making packet switching decisions in contexts where
470	* pfnRecv cannot be called or is no longer applicable. This method can be
471	* called from any context.
472	*
473	* @returns INTNETSWDECISION_BROADCAST, INTNETSWDECISION_INTNET or
474	* INTNETSWDECISION_TRUNK. The source is excluded from broadcast &
475	* trunk, of course.
476	*
477	* @param pSwitchPort Pointer to this structure.
478	* @param pvHdrs Pointer to the packet headers.
479	* @param cbHdrs Size of the packet headers. This must be at least 6
480	* bytes (the destination MAC address), but should if
481	* possible also include any VLAN tag and network
482	* layer header (wireless mac address sharing).
483	* @param fSrc Where this frame comes from. Only one bit should be
484	* set!
485	*
486	* @remarks Will only grab the switch table spinlock (interrupt safe). May
487	* signal an event semaphore iff we're racing network cleanup. The
488	* caller must be busy when calling.
489	*/
490	DECLR0CALLBACKMEMBER(INTNETSWDECISION, pfnPreRecv,(PINTNETTRUNKSWPORT pSwitchPort,
491	void const *pvHdrs, size_t cbHdrs, uint32_t fSrc));
492
493	/**
494	* Incoming frame.
495	*
496	* The frame may be modified when the trunk port on the switch is set to share
497	* the mac address of the host when hitting the wire. Currently frames
498	* containing ARP packets are subject to this, later other protocols like
499	* NDP/ICMPv6 may need editing as well when operating in this mode. The edited
500	* packet should be forwarded to the host/wire when @c false is returned.
501	*
502	* @returns true if we've handled it and it should be dropped.
503	* false if it should hit the wire/host.
504	*
505	* @param pSwitchPort Pointer to this structure.
506	* @param pvIf Pointer to the interface which received this frame
507	* if available. Can be NULL.
508	* @param pSG The (scatter /) gather structure for the frame. This
509	* will only be use during the call, so a temporary one can
510	* be used. The Phys member will not be used.
511	* @param fSrc Where this frame comes from. Exactly one bit shall be
512	* set!
513	*
514	* @remarks Will only grab the switch table spinlock (interrupt safe). Will
515	* signal event semaphores. The caller must be busy when calling.
516	*
517	* @remarks NAT and TAP will use this interface.
518	*
519	* @todo Do any of the host require notification before frame modifications?
520	* If so, we'll add a callback to INTNETTRUNKIFPORT for this
521	* (pfnSGModifying) and a SG flag.
522	*/
523	DECLR0CALLBACKMEMBER(bool, pfnRecv,(PINTNETTRUNKSWPORT pSwitchPort, void *pvIf, PINTNETSG pSG, uint32_t fSrc));
524
525	/**
526	* Retain a SG.
527	*
528	* @param pSwitchPort Pointer to this structure.
529	* @param pSG Pointer to the (scatter /) gather structure.
530	*
531	* @remarks Will not grab any locks. The caller must be busy when calling.
532	*/
533	DECLR0CALLBACKMEMBER(void, pfnSGRetain,(PINTNETTRUNKSWPORT pSwitchPort, PINTNETSG pSG));
534
535	/**
536	* Release a SG.
537	*
538	* This is called by the pfnXmit code when done with a SG. This may safe
539	* be done in an asynchronous manner.
540	*
541	* @param pSwitchPort Pointer to this structure.
542	* @param pSG Pointer to the (scatter /) gather structure.
543	*
544	* @remarks May signal an event semaphore later on, currently code won't though.
545	* The caller is busy when making this call.
546	*/
547	DECLR0CALLBACKMEMBER(void, pfnSGRelease,(PINTNETTRUNKSWPORT pSwitchPort, PINTNETSG pSG));
548
549	/**
550	* Selects whether outgoing SGs should have their physical address set.
551	*
552	* By enabling physical addresses in the scatter / gather segments it should
553	* be possible to save some unnecessary address translation and memory locking
554	* in the network stack. (Internal networking knows the physical address for
555	* all the INTNETBUF data and that it's locked memory.) There is a negative
556	* side effects though, frames that crosses page boundaries will require
557	* multiple scather / gather segments.
558	*
559	* @returns The old setting.
560	*
561	* @param pSwitchPort Pointer to this structure.
562	* @param fEnable Whether to enable or disable it.
563	*
564	* @remarks Will not grab any locks. The caller must be busy when calling.
565	*/
566	DECLR0CALLBACKMEMBER(bool, pfnSetSGPhys,(PINTNETTRUNKSWPORT pSwitchPort, bool fEnable));
567
568	/**
569	* Reports the MAC address of the trunk.
570	*
571	* This is supposed to be called when creating, connection or reconnecting the
572	* trunk and when the MAC address is changed by the system admin.
573	*
574	* @param pSwitchPort Pointer to this structure.
575	* @param pMacAddr The MAC address.
576	*
577	* @remarks May take a spinlock or two. The caller must be busy when calling.
578	*/
579	DECLR0CALLBACKMEMBER(void, pfnReportMacAddress,(PINTNETTRUNKSWPORT pSwitchPort, PCRTMAC pMacAddr));
580
581	/**
582	* Reports the promicuousness of the interface.
583	*
584	* This is supposed to be called when creating, connection or reconnecting the
585	* trunk and when the mode is changed by the system admin.
586	*
587	* @param pSwitchPort Pointer to this structure.
588	* @param fPromiscuous True if the host operates the interface in
589	* promiscuous mode, false if not.
590	*
591	* @remarks May take a spinlock or two. The caller must be busy when calling.
592	*/
593	DECLR0CALLBACKMEMBER(void, pfnReportPromiscuousMode,(PINTNETTRUNKSWPORT pSwitchPort, bool fPromiscuous));
594
595	/**
596	* Reports the GSO capabilities of the host, wire or both.
597	*
598	* This is supposed to be used only when creating, connecting or reconnecting
599	* the trunk. It is assumed that the GSO capabilities are kind of static the
600	* rest of the time.
601	*
602	* @param pSwitchPort Pointer to this structure.
603	* @param fGsoCapabilities The GSO capability bit mask. The bits
604	* corresponds to the GSO type with the same value.
605	* @param fDst The destination mask (INTNETTRUNKDIR_XXX).
606	*
607	* @remarks Does not take any locks. The caller must be busy when calling.
608	*/
609	DECLR0CALLBACKMEMBER(void, pfnReportGsoCapabilities,(PINTNETTRUNKSWPORT pSwitchPort, uint32_t fGsoCapabilities, uint32_t fDst));
610
611	/**
612	* Reports the no-preemption-xmit capabilities of the host and wire.
613	*
614	* This is supposed to be used only when creating, connecting or reconnecting
615	* the trunk. It is assumed that the GSO capabilities are kind of static the
616	* rest of the time.
617	*
618	* @param pSwitchPort Pointer to this structure.
619	* @param fNoPreemptDsts The destinations (INTNETTRUNKDIR_XXX) which it
620	* is safe to transmit to with preemption disabled.
621	* @param fDst The destination mask (INTNETTRUNKDIR_XXX).
622	*
623	* @remarks Does not take any locks. The caller must be busy when calling.
624	*/
625	DECLR0CALLBACKMEMBER(void, pfnReportNoPreemptDsts,(PINTNETTRUNKSWPORT pSwitchPort, uint32_t fNoPreemptDsts));
626
627	/**
628	* Notifications about changes to host IP addresses.
629	*
630	* This is used by networks bridged to wifi that share mac with
631	* the host. Host reports changes to its IP addresses so that L3
632	* switching can ingore guests spoofing host's own IP addresses
633	*
634	* This callback may be null to indicate we are not interested.
635	*
636	* @param pSwitchPort Pointer to this structure.
637	* @param fAdded Whether address is added of removed.
638	* @param enmType Address type.
639	* @param pvAddr Pointer to the address.
640	*/
641	DECLR0CALLBACKMEMBER(void, pfnNotifyHostAddress,(PINTNETTRUNKSWPORT pSwitchPort, bool fAdded,
642	INTNETADDRTYPE enmType, const void *pvAddr));
643
644	/**
645	* OS triggered trunk disconnect.
646	*
647	* The caller shall must be busy when calling this method to prevent racing the
648	* network destruction code. This method will always consume this busy reference
649	* (released via @a pfnReleaseBusy using @a pIfPort).
650	*
651	* The caller shall guarantee that there are absolutely no chance of concurrent
652	* calls to this method on the same instance.
653	*
654	* @param pSwitchPort Pointer to this structure.
655	* @param pIfPort The interface port structure corresponding to @a
656	* pSwitchPort and which should be used when
657	* calling @a pfnReleaseBusy. This is required as
658	* the method may no longer have access to a valid
659	* @a pIfPort pointer.
660	* @param pfnReleaseBusy Callback for releasing the callers busy
661	* reference to it's side of things.
662	*/
663	DECLR0CALLBACKMEMBER(void, pfnDisconnect,(PINTNETTRUNKSWPORT pSwitchPort, PINTNETTRUNKIFPORT pIfPort,
664	PFNINTNETTRUNKIFPORTRELEASEBUSY pfnReleaseBusy));
665
666	/** Structure version number. (INTNETTRUNKSWPORT_VERSION) */
667	uint32_t u32VersionEnd;
668	} INTNETTRUNKSWPORT;
669
670	/**
671	* Version number for the INTNETTRUNKIFPORT::u32Version and
672	* INTNETTRUNKIFPORT::u32VersionEnd fields.
673	*
674	* NB: Version @c 0xA2CDf005 is consumed by 4.x branches for the
675	* backport of pfnNotifyHostAddress. On the next version bump use
676	* @c 0xA2CDf006 and remove this reminder.
677	*/
678	# define INTNETTRUNKSWPORT_VERSION UINT32_C(0xA2CDf004)
679
680
681	/**
682	* The trunk interface state used set by INTNETTRUNKIFPORT::pfnSetState.
683	*/
684	typedef enum INTNETTRUNKIFSTATE
685	{
686	/** The invalid zero entry. */
687	INTNETTRUNKIFSTATE_INVALID = 0,
688	/** The trunk is inactive. No calls to INTNETTRUNKSWPORT::pfnRecv or
689	* INTNETTRUNKSWPORT::pfnPreRecv. Calling other methods is OK. */
690	INTNETTRUNKIFSTATE_INACTIVE,
691	/** The trunk is active, no restrictions on methods or anything. */
692	INTNETTRUNKIFSTATE_ACTIVE,
693	/** The trunk is about to be disconnected from the internal network. No
694	* calls to any INTNETRUNKSWPORT methods. */
695	INTNETTRUNKIFSTATE_DISCONNECTING,
696	/** The end of the valid states. */
697	INTNETTRUNKIFSTATE_END,
698	/** The usual 32-bit type blow up hack. */
699	INTNETTRUNKIFSTATE_32BIT_HACK = 0x7fffffff
700	} INTNETTRUNKIFSTATE;
701
702
703	/**
704	* This is the port on the trunk interface, i.e. the driver side which the
705	* internal network is connected to.
706	*
707	* This is only used for the in-kernel trunk connections.
708	*/
709	typedef struct INTNETTRUNKIFPORT
710	{
711	/** Structure version number. (INTNETTRUNKIFPORT_VERSION) */
712	uint32_t u32Version;
713
714	/**
715	* Retain the object.
716	*
717	* It will normally be called while owning the internal network semaphore.
718	*
719	* @param pIfPort Pointer to this structure.
720	*
721	* @remarks May own the big mutex, no spinlocks.
722	*/
723	DECLR0CALLBACKMEMBER(void, pfnRetain,(PINTNETTRUNKIFPORT pIfPort));
724
725	/**
726	* Releases the object.
727	*
728	* This must be called for every pfnRetain call.
729	*
730	* @param pIfPort Pointer to this structure.
731	*
732	* @remarks May own the big mutex, no spinlocks.
733	*/
734	DECLR0CALLBACKMEMBER(void, pfnRelease,(PINTNETTRUNKIFPORT pIfPort));
735
736	/**
737	* Disconnect from the switch and release the object.
738	*
739	* The is the counter action of the
740	* INTNETTRUNKNETFLTFACTORY::pfnCreateAndConnect method.
741	*
742	* @param pIfPort Pointer to this structure.
743	*
744	* @remarks Owns the big mutex.
745	*/
746	DECLR0CALLBACKMEMBER(void, pfnDisconnectAndRelease,(PINTNETTRUNKIFPORT pIfPort));
747
748	/**
749	* Changes the state of the trunk interface.
750	*
751	* The interface is created in the inactive state (INTNETTRUNKIFSTATE_INACTIVE).
752	* When the first connect VM or service is activated, the internal network
753	* activates the trunk (INTNETTRUNKIFSTATE_ACTIVE). The state may then be set
754	* back and forth between INACTIVE and ACTIVE as VMs are paused, added and
755	* removed.
756	*
757	* Eventually though, the network is destroyed as a result of there being no
758	* more VMs left in it and the state is changed to disconnecting
759	* (INTNETTRUNKIFSTATE_DISCONNECTING) and pfnWaitForIdle is called to make sure
760	* there are no active calls in either direction when pfnDisconnectAndRelease is
761	* called.
762	*
763	* A typical operation to performed by this method is to enable/disable promiscuous
764	* mode on the host network interface when entering/leaving the active state.
765	*
766	* @returns The previous state.
767	*
768	* @param pIfPort Pointer to this structure.
769	* @param enmState The new state.
770	*
771	* @remarks Owns the big mutex. No racing pfnSetState, pfnWaitForIdle,
772	* pfnDisconnectAndRelease or INTNETTRUNKFACTORY::pfnCreateAndConnect
773	* calls.
774	*/
775	DECLR0CALLBACKMEMBER(INTNETTRUNKIFSTATE, pfnSetState,(PINTNETTRUNKIFPORT pIfPort, INTNETTRUNKIFSTATE enmState));
776
777	/**
778	* Notifies when the MAC address of an interface is set or changes.
779	*
780	* @param pIfPort Pointer to this structure.
781	* @param pvIfData Pointer to the trunk's interface data (see
782	* pfnConnectInterface).
783	* @param pMac Pointer to the MAC address of the connecting VM NIC.
784	*
785	* @remarks Only busy references to the trunk and the interface.
786	*/
787	DECLR0CALLBACKMEMBER(void, pfnNotifyMacAddress,(PINTNETTRUNKIFPORT pIfPort, void *pvIfData, PCRTMAC pMac));
788
789	/**
790	* Called when an interface is connected to the network.
791	*
792	* @returns IPRT status code.
793	* @param pIfPort Pointer to this structure.
794	* @param pvIf Opaque pointer to the interface being connected.
795	* For use INTNETTRUNKSWPORT::pfnRecv.
796	* @param ppvIfData Pointer to a pointer variable that the trunk
797	* implementation can use to associate data with the
798	* interface. This pointer will be passed to the
799	* pfnXmit, pfnNotifyMacAddress and
800	* pfnDisconnectInterface methods.
801	*
802	* @remarks Owns the big mutex. No racing pfnDisconnectAndRelease.
803	*/
804	DECLR0CALLBACKMEMBER(int, pfnConnectInterface,(PINTNETTRUNKIFPORT pIfPort, void pvIf, void *ppvIfData));
805
806	/**
807	* Called when an interface is disconnected from the network.
808	*
809	* @param pIfPort Pointer to this structure.
810	* @param pvIfData Pointer to the trunk's interface data (see
811	* pfnConnectInterface).
812	*
813	* @remarks Owns the big mutex. No racing pfnDisconnectAndRelease.
814	*/
815	DECLR0CALLBACKMEMBER(void, pfnDisconnectInterface,(PINTNETTRUNKIFPORT pIfPort, void *pvIfData));
816
817	/**
818	* Waits for the interface to become idle.
819	*
820	* This method must be called before disconnecting and releasing the object in
821	* order to prevent racing incoming/outgoing frames and device
822	* enabling/disabling.
823	*
824	* @returns IPRT status code (see RTSemEventWait).
825	* @param pIfPort Pointer to this structure.
826	* @param cMillies The number of milliseconds to wait. 0 means
827	* no waiting at all. Use RT_INDEFINITE_WAIT for
828	* an indefinite wait.
829	*
830	* @remarks Owns the big mutex. No racing pfnDisconnectAndRelease.
831	*/
832	DECLR0CALLBACKMEMBER(int, pfnWaitForIdle,(PINTNETTRUNKIFPORT pIfPort, uint32_t cMillies));
833
834	/**
835	* Transmit a frame.
836	*
837	* @return VBox status code. Error generally means we'll drop the frame.
838	* @param pIfPort Pointer to this structure.
839	* @param pvIfData Pointer to the trunk's interface data (see
840	* pfnConnectInterface).
841	* @param pSG Pointer to the (scatter /) gather structure for the frame.
842	* This may or may not be a temporary buffer. If it's temporary
843	* the transmit operation(s) then it's required to make a copy
844	* of the frame unless it can be transmitted synchronously.
845	* @param fDst The destination mask. At least one bit will be set.
846	*
847	* @remarks No locks. May be called concurrently on several threads.
848	*/
849	DECLR0CALLBACKMEMBER(int, pfnXmit,(PINTNETTRUNKIFPORT pIfPort, void *pvIfData, PINTNETSG pSG, uint32_t fDst));
850
851	/** Structure version number. (INTNETTRUNKIFPORT_VERSION) */
852	uint32_t u32VersionEnd;
853	} INTNETTRUNKIFPORT;
854
855	/** Version number for the INTNETTRUNKIFPORT::u32Version and INTNETTRUNKIFPORT::u32VersionEnd fields. */
856	#define INTNETTRUNKIFPORT_VERSION UINT32_C(0xA2CDe001)
857
858
859	/**
860	* The component factory interface for create a network
861	* interface filter (like VBoxNetFlt).
862	*/
863	typedef struct INTNETTRUNKFACTORY
864	{
865	/**
866	* Release this factory.
867	*
868	* SUPR0ComponentQueryFactory (SUPDRVFACTORY::pfnQueryFactoryInterface to be precise)
869	* will retain a reference to the factory and the caller has to call this method to
870	* release it once the pfnCreateAndConnect call(s) has been done.
871	*
872	* @param pIfFactory Pointer to this structure.
873	*/
874	DECLR0CALLBACKMEMBER(void, pfnRelease,(struct INTNETTRUNKFACTORY *pIfFactory));
875
876	/**
877	* Create an instance for the specfied host interface and connects it
878	* to the internal network trunk port.
879	*
880	* The initial interface active state is false (suspended).
881	*
882	*
883	* @returns VBox status code.
884	* @retval VINF_SUCCESS and *ppIfPort set on success.
885	* @retval VERR_INTNET_FLT_IF_NOT_FOUND if the interface was not found.
886	* @retval VERR_INTNET_FLT_IF_BUSY if the interface is already connected.
887	* @retval VERR_INTNET_FLT_IF_FAILED if it failed for some other reason.
888	*
889	* @param pIfFactory Pointer to this structure.
890	* @param pszName The interface name (OS specific).
891	* @param pSwitchPort Pointer to the port interface on the switch that
892	* this interface is being connected to.
893	* @param fFlags Creation flags, see below.
894	* @param ppIfPort Where to store the pointer to the interface port
895	* on success.
896	*
897	* @remarks Called while owning the network and the out-bound trunk semaphores.
898	*/
899	DECLR0CALLBACKMEMBER(int, pfnCreateAndConnect,(struct INTNETTRUNKFACTORY pIfFactory, const char pszName,
900	PINTNETTRUNKSWPORT pSwitchPort, uint32_t fFlags,
901	PINTNETTRUNKIFPORT *ppIfPort));
902	} INTNETTRUNKFACTORY;
903	/** Pointer to the trunk factory. */
904	typedef INTNETTRUNKFACTORY *PINTNETTRUNKFACTORY;
905
906	/** The UUID for the (current) trunk factory. (case sensitive) */
907	#define INTNETTRUNKFACTORY_UUID_STR "de504d93-1d1e-4781-8b73-6ea39a0e36a2"
908
909	/** @name INTNETTRUNKFACTORY::pfnCreateAndConnect flags.
910	* @{ */
911	/** Don't put the filtered interface in promiscuous mode.
912	* This is used for wireless interface since these can misbehave if
913	* we try to put them in promiscuous mode. (Wireless interfaces are
914	* normally bridged on level 3 instead of level 2.) */
915	#define INTNETTRUNKFACTORY_FLAG_NO_PROMISC RT_BIT_32(0)
916	/** @} */
917
918
919	/**
920	* The trunk connection type.
921	*
922	* Used by IntNetR0Open and associated interfaces.
923	*/
924	typedef enum INTNETTRUNKTYPE
925	{
926	/** Invalid trunk type. */
927	kIntNetTrunkType_Invalid = 0,
928	/** No trunk connection. */
929	kIntNetTrunkType_None,
930	/** We don't care which kind of trunk connection if the network exists,
931	* if it doesn't exist create it without a connection. */
932	kIntNetTrunkType_WhateverNone,
933	/** VirtualBox host network interface filter driver.
934	* The trunk name is the name of the host network interface. */
935	kIntNetTrunkType_NetFlt,
936	/** VirtualBox adapter host driver. */
937	kIntNetTrunkType_NetAdp,
938	/** Nat service (ring-0). */
939	kIntNetTrunkType_SrvNat,
940	/** The end of valid types. */
941	kIntNetTrunkType_End,
942	/** The usual 32-bit hack. */
943	kIntNetTrunkType_32bitHack = 0x7fffffff
944	} INTNETTRUNKTYPE;
945
946	/** @name IntNetR0Open flags.
947	*
948	* The desired policy options must be specified explicitly, if omitted it is
949	* understood that whatever is current or default is fine with the caller.
950	*
951	* @todo Move the policies out of the flags, use three new parameters.
952	*
953	* @{ */
954	/** Share the MAC address with the host when sending something to the wire via the trunk.
955	* This is typically used when the trunk is a NetFlt for a wireless interface. */
956	#define INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE RT_BIT_32(0)
957	/** Require that the current security and promiscuous policies of the network
958	* is exactly as the ones specified in this open network request.
959	*
960	* Use this with INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES to prevent
961	* restrictions from being lifted. If no further policy changes are desired,
962	* apply the relevant _FIXED flags. */
963	#define INTNET_OPEN_FLAGS_REQUIRE_EXACT RT_BIT_32(1)
964	/** Require that the security and promiscuous policies of the network is at
965	* least as restrictive as specified this request specifies and prevent them
966	* being lifted later on. */
967	#define INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES RT_BIT_32(2)
968
969	/** Network access policy: Fixed if set, changable if clear. */
970	#define INTNET_OPEN_FLAGS_ACCESS_FIXED RT_BIT_32(3)
971	/** Network access policy: Public network. */
972	#define INTNET_OPEN_FLAGS_ACCESS_PUBLIC RT_BIT_32(4)
973	/** Network access policy: Restricted network. */
974	#define INTNET_OPEN_FLAGS_ACCESS_RESTRICTED RT_BIT_32(5)
975
976	/** Promiscuous mode policy: Is it fixed or changable by new participants? */
977	#define INTNET_OPEN_FLAGS_PROMISC_FIXED RT_BIT_32(6)
978	/** Promiscuous mode policy: Allow the clients to request it. */
979	#define INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS RT_BIT_32(7)
980	/** Promiscuous mode policy: Deny the clients from requesting it. */
981	#define INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS RT_BIT_32(8)
982	/** Promiscuous mode policy: Allow the trunk-host to request it. */
983	#define INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST RT_BIT_32(9)
984	/** Promiscuous mode policy: Deny the trunk-host from requesting it. */
985	#define INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST RT_BIT_32(10)
986	/** Promiscuous mode policy: Allow the trunk-wire to request it. */
987	#define INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE RT_BIT_32(11)
988	/** Promiscuous mode policy: Deny the trunk-wire from requesting it. */
989	#define INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE RT_BIT_32(12)
990
991	/** Interface policies: Is it fixed or changable (by admin).
992	* @note Per interface, not network wide. */
993	#define INTNET_OPEN_FLAGS_IF_FIXED RT_BIT_32(13)
994	/** Interface promiscuous mode policy: Allow the interface to request it. */
995	#define INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW RT_BIT_32(14)
996	/** Interface promiscuous mode policy: Deny the interface from requesting it. */
997	#define INTNET_OPEN_FLAGS_IF_PROMISC_DENY RT_BIT_32(15)
998	/** Interface promiscuous mode policy: See unrelated trunk traffic. */
999	#define INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK RT_BIT_32(16)
1000	/** Interface promiscuous mode policy: No unrelated trunk traffic visible. */
1001	#define INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK RT_BIT_32(17)
1002
1003	/** Trunk policy: Fixed if set, changable if clear.
1004	* @remarks The DISABLED options are considered more restrictive by
1005	* INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES. */
1006	#define INTNET_OPEN_FLAGS_TRUNK_FIXED RT_BIT_32(18)
1007	/** Trunk policy: The host end should be enabled. */
1008	#define INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED RT_BIT_32(19)
1009	/** Trunk policy: The host end should be disabled. */
1010	#define INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED RT_BIT_32(20)
1011	/** Trunk policy: The host should only see packets destined for it. */
1012	#define INTNET_OPEN_FLAGS_TRUNK_HOST_CHASTE_MODE RT_BIT_32(21)
1013	/** Trunk policy: The host should see all packets. */
1014	#define INTNET_OPEN_FLAGS_TRUNK_HOST_PROMISC_MODE RT_BIT_32(22)
1015	/** Trunk policy: The wire end should be enabled. */
1016	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED RT_BIT_32(23)
1017	/** Trunk policy: The wire end should be disabled. */
1018	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED RT_BIT_32(24)
1019	/** Trunk policy: The wire should only see packets destined for it. */
1020	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_CHASTE_MODE RT_BIT_32(25)
1021	/** Trunk policy: The wire should see all packets. */
1022	#define INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE RT_BIT_32(26)
1023
1024	/** Used to enable host specific workarounds.
1025	*
1026	* On darwin this will clear ip_tos in DHCP packets when
1027	* INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE is also set. */
1028	#define INTNET_OPEN_FLAGS_WORKAROUND_1 RT_BIT_32(31)
1029
1030
1031	/** The mask of valid flags. */
1032	#define INTNET_OPEN_FLAGS_MASK UINT32_C(0x83ffffff)
1033	/** The mask of all flags use to fix (lock) settings. */
1034	#define INTNET_OPEN_FLAGS_FIXED_MASK \
1035	( INTNET_OPEN_FLAGS_ACCESS_FIXED \
1036	\| INTNET_OPEN_FLAGS_PROMISC_FIXED \
1037	\| INTNET_OPEN_FLAGS_IF_FIXED \
1038	\| INTNET_OPEN_FLAGS_TRUNK_FIXED )
1039
1040	/** The mask of all policy pairs. */
1041	#define INTNET_OPEN_FLAGS_PAIR_MASK \
1042	( INTNET_OPEN_FLAGS_ACCESS_PUBLIC \| INTNET_OPEN_FLAGS_ACCESS_RESTRICTED \
1043	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS \| INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS \
1044	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST \| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST \
1045	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE \| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE \
1046	\| INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW \| INTNET_OPEN_FLAGS_IF_PROMISC_DENY \
1047	\| INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK \| INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK \
1048	\| INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED \| INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED \
1049	\| INTNET_OPEN_FLAGS_TRUNK_HOST_PROMISC_MODE \| INTNET_OPEN_FLAGS_TRUNK_HOST_CHASTE_MODE \
1050	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED \| INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED \
1051	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE \| INTNET_OPEN_FLAGS_TRUNK_WIRE_CHASTE_MODE \
1052	)
1053	/** The mask of all relaxed policy bits. */
1054	#define INTNET_OPEN_FLAGS_RELAXED_MASK \
1055	( INTNET_OPEN_FLAGS_ACCESS_PUBLIC \
1056	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS \
1057	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST \
1058	\| INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE \
1059	\| INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW \
1060	\| INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK \
1061	\| INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED \
1062	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE \
1063	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED \
1064	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE \
1065	)
1066	/** The mask of all strict policy bits. */
1067	#define INTNET_OPEN_FLAGS_STRICT_MASK \
1068	( INTNET_OPEN_FLAGS_ACCESS_RESTRICTED \
1069	\| INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS \
1070	\| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST \
1071	\| INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE \
1072	\| INTNET_OPEN_FLAGS_IF_PROMISC_DENY \
1073	\| INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK \
1074	\| INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED \
1075	\| INTNET_OPEN_FLAGS_TRUNK_HOST_CHASTE_MODE \
1076	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED \
1077	\| INTNET_OPEN_FLAGS_TRUNK_WIRE_CHASTE_MODE \
1078	)
1079	/** @} */
1080
1081	/** The maximum length of a network name. */
1082	#define INTNET_MAX_NETWORK_NAME 128
1083
1084	/** The maximum length of a trunk name. */
1085	#define INTNET_MAX_TRUNK_NAME 64
1086
1087
1088	/**
1089	* Request buffer for IntNetR0OpenReq / VMMR0_DO_INTNET_OPEN.
1090	* @see IntNetR0Open.
1091	*/
1092	typedef struct INTNETOPENREQ
1093	{
1094	/** The request header. */
1095	SUPVMMR0REQHDR Hdr;
1096	/** Alternative to passing the taking the session from the VM handle.
1097	* Either use this member or use the VM handle, don't do both. */
1098	PSUPDRVSESSION pSession;
1099	/** The network name. (input) */
1100	char szNetwork[INTNET_MAX_NETWORK_NAME];
1101	/** What to connect to the trunk port. (input)
1102	* This is specific to the trunk type below. */
1103	char szTrunk[INTNET_MAX_TRUNK_NAME];
1104	/** The type of trunk link (NAT, Filter, TAP, etc). (input) */
1105	INTNETTRUNKTYPE enmTrunkType;
1106	/** Flags, see INTNET_OPEN_FLAGS_. (input) /
1107	uint32_t fFlags;
1108	/** The size of the send buffer. (input) */
1109	uint32_t cbSend;
1110	/** The size of the receive buffer. (input) */
1111	uint32_t cbRecv;
1112	/** The handle to the network interface. (output) */
1113	INTNETIFHANDLE hIf;
1114	} INTNETOPENREQ;
1115	/** Pointer to an IntNetR0OpenReq / VMMR0_DO_INTNET_OPEN request buffer. */
1116	typedef INTNETOPENREQ *PINTNETOPENREQ;
1117
1118	INTNETR0DECL(int) IntNetR0OpenReq(PSUPDRVSESSION pSession, PINTNETOPENREQ pReq);
1119
1120
1121	/**
1122	* Request buffer for IntNetR0IfCloseReq / VMMR0_DO_INTNET_IF_CLOSE.
1123	* @see IntNetR0IfClose.
1124	*/
1125	typedef struct INTNETIFCLOSEREQ
1126	{
1127	/** The request header. */
1128	SUPVMMR0REQHDR Hdr;
1129	/** Alternative to passing the taking the session from the VM handle.
1130	* Either use this member or use the VM handle, don't do both. */
1131	PSUPDRVSESSION pSession;
1132	/** The handle to the network interface. */
1133	INTNETIFHANDLE hIf;
1134	} INTNETIFCLOSEREQ;
1135	/** Pointer to an IntNetR0IfCloseReq / VMMR0_DO_INTNET_IF_CLOSE request
1136	* buffer. */
1137	typedef INTNETIFCLOSEREQ *PINTNETIFCLOSEREQ;
1138
1139	INTNETR0DECL(int) IntNetR0IfCloseReq(PSUPDRVSESSION pSession, PINTNETIFCLOSEREQ pReq);
1140
1141
1142	/**
1143	* Request buffer for IntNetR0IfGetRing3BufferReq /
1144	* VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS.
1145	* @see IntNetR0IfGetRing3Buffer.
1146	*/
1147	typedef struct INTNETIFGETBUFFERPTRSREQ
1148	{
1149	/** The request header. */
1150	SUPVMMR0REQHDR Hdr;
1151	/** Alternative to passing the taking the session from the VM handle.
1152	* Either use this member or use the VM handle, don't do both. */
1153	PSUPDRVSESSION pSession;
1154	/** Handle to the interface. */
1155	INTNETIFHANDLE hIf;
1156	/** The pointer to the ring-3 buffer. (output) */
1157	R3PTRTYPE(PINTNETBUF) pRing3Buf;
1158	/** The pointer to the ring-0 buffer. (output) */
1159	R0PTRTYPE(PINTNETBUF) pRing0Buf;
1160	} INTNETIFGETBUFFERPTRSREQ;
1161	/** Pointer to an IntNetR0IfGetRing3BufferReq /
1162	* VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS request buffer. */
1163	typedef INTNETIFGETBUFFERPTRSREQ *PINTNETIFGETBUFFERPTRSREQ;
1164
1165	INTNETR0DECL(int) IntNetR0IfGetBufferPtrsReq(PSUPDRVSESSION pSession, PINTNETIFGETBUFFERPTRSREQ pReq);
1166
1167
1168	/**
1169	* Request buffer for IntNetR0IfSetPromiscuousModeReq /
1170	* VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE.
1171	* @see IntNetR0IfSetPromiscuousMode.
1172	*/
1173	typedef struct INTNETIFSETPROMISCUOUSMODEREQ
1174	{
1175	/** The request header. */
1176	SUPVMMR0REQHDR Hdr;
1177	/** Alternative to passing the taking the session from the VM handle.
1178	* Either use this member or use the VM handle, don't do both. */
1179	PSUPDRVSESSION pSession;
1180	/** Handle to the interface. */
1181	INTNETIFHANDLE hIf;
1182	/** The new promiscuous mode. */
1183	bool fPromiscuous;
1184	} INTNETIFSETPROMISCUOUSMODEREQ;
1185	/** Pointer to an IntNetR0IfSetPromiscuousModeReq /
1186	* VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE request buffer. */
1187	typedef INTNETIFSETPROMISCUOUSMODEREQ *PINTNETIFSETPROMISCUOUSMODEREQ;
1188
1189	INTNETR0DECL(int) IntNetR0IfSetPromiscuousModeReq(PSUPDRVSESSION pSession, PINTNETIFSETPROMISCUOUSMODEREQ pReq);
1190
1191
1192	/**
1193	* Request buffer for IntNetR0IfSetMacAddressReq /
1194	* VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS.
1195	* @see IntNetR0IfSetMacAddress.
1196	*/
1197	typedef struct INTNETIFSETMACADDRESSREQ
1198	{
1199	/** The request header. */
1200	SUPVMMR0REQHDR Hdr;
1201	/** Alternative to passing the taking the session from the VM handle.
1202	* Either use this member or use the VM handle, don't do both. */
1203	PSUPDRVSESSION pSession;
1204	/** Handle to the interface. */
1205	INTNETIFHANDLE hIf;
1206	/** The new MAC address. */
1207	RTMAC Mac;
1208	} INTNETIFSETMACADDRESSREQ;
1209	/** Pointer to an IntNetR0IfSetMacAddressReq /
1210	* VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS request buffer. */
1211	typedef INTNETIFSETMACADDRESSREQ *PINTNETIFSETMACADDRESSREQ;
1212
1213	INTNETR0DECL(int) IntNetR0IfSetMacAddressReq(PSUPDRVSESSION pSession, PINTNETIFSETMACADDRESSREQ pReq);
1214
1215
1216	/**
1217	* Request buffer for IntNetR0IfSetActiveReq / VMMR0_DO_INTNET_IF_SET_ACTIVE.
1218	* @see IntNetR0IfSetActive.
1219	*/
1220	typedef struct INTNETIFSETACTIVEREQ
1221	{
1222	/** The request header. */
1223	SUPVMMR0REQHDR Hdr;
1224	/** Alternative to passing the taking the session from the VM handle.
1225	* Either use this member or use the VM handle, don't do both. */
1226	PSUPDRVSESSION pSession;
1227	/** Handle to the interface. */
1228	INTNETIFHANDLE hIf;
1229	/** The new state. */
1230	bool fActive;
1231	} INTNETIFSETACTIVEREQ;
1232	/** Pointer to an IntNetR0IfSetActiveReq / VMMR0_DO_INTNET_IF_SET_ACTIVE
1233	* request buffer. */
1234	typedef INTNETIFSETACTIVEREQ *PINTNETIFSETACTIVEREQ;
1235
1236	INTNETR0DECL(int) IntNetR0IfSetActiveReq(PSUPDRVSESSION pSession, PINTNETIFSETACTIVEREQ pReq);
1237
1238
1239	/**
1240	* Request buffer for IntNetR0IfSendReq / VMMR0_DO_INTNET_IF_SEND.
1241	* @see IntNetR0IfSend.
1242	*/
1243	typedef struct INTNETIFSENDREQ
1244	{
1245	/** The request header. */
1246	SUPVMMR0REQHDR Hdr;
1247	/** Alternative to passing the taking the session from the VM handle.
1248	* Either use this member or use the VM handle, don't do both. */
1249	PSUPDRVSESSION pSession;
1250	/** Handle to the interface. */
1251	INTNETIFHANDLE hIf;
1252	} INTNETIFSENDREQ;
1253	/** Pointer to an IntNetR0IfSend() argument package. */
1254	typedef INTNETIFSENDREQ *PINTNETIFSENDREQ;
1255
1256	INTNETR0DECL(int) IntNetR0IfSendReq(PSUPDRVSESSION pSession, PINTNETIFSENDREQ pReq);
1257
1258
1259	/**
1260	* Request buffer for IntNetR0IfWaitReq / VMMR0_DO_INTNET_IF_WAIT.
1261	* @see IntNetR0IfWait.
1262	*/
1263	typedef struct INTNETIFWAITREQ
1264	{
1265	/** The request header. */
1266	SUPVMMR0REQHDR Hdr;
1267	/** Alternative to passing the taking the session from the VM handle.
1268	* Either use this member or use the VM handle, don't do both. */
1269	PSUPDRVSESSION pSession;
1270	/** Handle to the interface. */
1271	INTNETIFHANDLE hIf;
1272	/** The number of milliseconds to wait. */
1273	uint32_t cMillies;
1274	} INTNETIFWAITREQ;
1275	/** Pointer to an IntNetR0IfWaitReq / VMMR0_DO_INTNET_IF_WAIT request buffer. */
1276	typedef INTNETIFWAITREQ *PINTNETIFWAITREQ;
1277
1278	INTNETR0DECL(int) IntNetR0IfWaitReq(PSUPDRVSESSION pSession, PINTNETIFWAITREQ pReq);
1279
1280
1281	/**
1282	* Request buffer for IntNetR0IfAbortWaitReq / VMMR0_DO_INTNET_IF_ABORT_WAIT.
1283	* @see IntNetR0IfAbortWait.
1284	*/
1285	typedef struct INTNETIFABORTWAITREQ
1286	{
1287	/** The request header. */
1288	SUPVMMR0REQHDR Hdr;
1289	/** Alternative to passing the taking the session from the VM handle.
1290	* Either use this member or use the VM handle, don't do both. */
1291	PSUPDRVSESSION pSession;
1292	/** Handle to the interface. */
1293	INTNETIFHANDLE hIf;
1294	/** Set this to fend off all future IntNetR0Wait calls. */
1295	bool fNoMoreWaits;
1296	} INTNETIFABORTWAITREQ;
1297	/** Pointer to an IntNetR0IfAbortWaitReq / VMMR0_DO_INTNET_IF_ABORT_WAIT
1298	* request buffer. */
1299	typedef INTNETIFABORTWAITREQ *PINTNETIFABORTWAITREQ;
1300
1301	INTNETR0DECL(int) IntNetR0IfAbortWaitReq(PSUPDRVSESSION pSession, PINTNETIFABORTWAITREQ pReq);
1302
1303
1304	#if defined(IN_RING0) \|\| defined(IN_INTNET_TESTCASE)
1305	/** @name
1306	* @{
1307	*/
1308
1309	INTNETR0DECL(int) IntNetR0Init(void);
1310	INTNETR0DECL(void) IntNetR0Term(void);
1311	INTNETR0DECL(int) IntNetR0Open(PSUPDRVSESSION pSession, const char *pszNetwork,
1312	INTNETTRUNKTYPE enmTrunkType, const char *pszTrunk, uint32_t fFlags,
1313	uint32_t cbSend, uint32_t cbRecv, PINTNETIFHANDLE phIf);
1314	INTNETR0DECL(uint32_t) IntNetR0GetNetworkCount(void);
1315
1316	INTNETR0DECL(int) IntNetR0IfClose(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession);
1317	INTNETR0DECL(int) IntNetR0IfGetBufferPtrs(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession,
1318	R3PTRTYPE(PINTNETBUF) ppRing3Buf, R0PTRTYPE(PINTNETBUF) ppRing0Buf);
1319	INTNETR0DECL(int) IntNetR0IfSetPromiscuousMode(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, bool fPromiscuous);
1320	INTNETR0DECL(int) IntNetR0IfSetMacAddress(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, PCRTMAC pMac);
1321	INTNETR0DECL(int) IntNetR0IfSetActive(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, bool fActive);
1322	INTNETR0DECL(int) IntNetR0IfSend(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession);
1323	INTNETR0DECL(int) IntNetR0IfWait(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession, uint32_t cMillies);
1324	INTNETR0DECL(int) IntNetR0IfAbortWait(INTNETIFHANDLE hIf, PSUPDRVSESSION pSession);
1325
1326	/** @} */
1327	#endif /* IN_RING0 */
1328
1329	/**
1330	* Callback function for use with IntNetR3Open to signalling incoming data.
1331	*
1332	* @param hIf Interface handle.
1333	* @param pvUser User parameter.
1334	*/
1335	typedef DECLCALLBACKTYPE(void, FNINTNETIFRECVAVAIL,(INTNETIFHANDLE hIf, void *pvUser));
1336	/** Pointer to a FNINTNETIFRECVAVAIL callback. */
1337	typedef FNINTNETIFRECVAVAIL *PFNINTNETIFRECVAVAIL;
1338
1339	#if defined(VBOX_WITH_INTNET_SERVICE_IN_R3) && defined(IN_RING3)
1340	INTNETR3DECL(int) IntNetR3Open(PSUPDRVSESSION pSession, const char *pszNetwork,
1341	INTNETTRUNKTYPE enmTrunkType, const char *pszTrunk, uint32_t fFlags,
1342	uint32_t cbSend, uint32_t cbRecv, PFNINTNETIFRECVAVAIL pfnRecvAvail,
1343	void *pvUserRecvAvail, PINTNETIFHANDLE phIf);
1344	#endif
1345
1346	RT_C_DECLS_END
1347
1348	#endif /* !VBOX_INCLUDED_intnet_h */

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source: vbox/trunk/include/VBox/intnet.h@ 101084

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