DevINIP.cpp@ 93115

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1	/* $Id: DevINIP.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
2	/** @file
3	* DevINIP - Internal Network IP stack device/service.
4	*/
5
6	/*
7	* Copyright (C) 2007-2022 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#define LOG_GROUP LOG_GROUP_DEV_INIP
23	#include <iprt/cdefs.h> /* include early to allow RT_C_DECLS_BEGIN hack */
24	#include <iprt/mem.h> /* include anything of ours that the lwip headers use. */
25	#include <iprt/semaphore.h>
26	#include <iprt/thread.h>
27	#include <iprt/alloca.h>
28	/* All lwip header files are not C++ safe. So hack around this. */
29	RT_C_DECLS_BEGIN
30	#include "lwip/sys.h"
31	#include "lwip/stats.h"
32	#include "lwip/mem.h"
33	#include "lwip/memp.h"
34	#include "lwip/pbuf.h"
35	#include "lwip/netif.h"
36	#include "lwip/api.h"
37	#include "lwip/tcp_impl.h"
38	# if LWIP_IPV6
39	# include "ipv6/lwip/ethip6.h"
40	# endif
41	#include "lwip/udp.h"
42	#include "lwip/tcp.h"
43	#include "lwip/tcpip.h"
44	#include "lwip/sockets.h"
45	#include "netif/etharp.h"
46	RT_C_DECLS_END
47	#include <VBox/vmm/pdmdev.h>
48	#include <VBox/vmm/pdmnetifs.h>
49	#include <VBox/vmm/tm.h>
50	#include <iprt/assert.h>
51	#include <iprt/string.h>
52	#include <iprt/uuid.h>
53
54	#include "VBoxDD.h"
55	#include "VBoxLwipCore.h"
56
57
58	/*********************************************************************************************************************************
59	* Macros and Defines *
60	*********************************************************************************************************************************/
61	/** Maximum frame size this device can handle. */
62	#define DEVINIP_MAX_FRAME 1514
63
64
65	/*********************************************************************************************************************************
66	* Structures and Typedefs *
67	*********************************************************************************************************************************/
68	/**
69	* Internal Network IP stack device instance data.
70	*
71	* @implements PDMIBASE
72	* @implements PDMINETWORKDOWN
73	*/
74	typedef struct DEVINTNETIP
75	{
76	/** The base interface for LUN\#0. */
77	PDMIBASE IBase;
78	/** The network port this device provides (LUN\#0). */
79	PDMINETWORKDOWN INetworkDown;
80	/** The network configuration port this device provides (LUN\#0). */
81	PDMINETWORKCONFIG INetworkConfig;
82	/** The base interface of the network driver below us. */
83	PPDMIBASE pDrvBase;
84	/** The connector of the network driver below us. */
85	PPDMINETWORKUP pDrv;
86	/** Pointer to the device instance. */
87	PPDMDEVINSR3 pDevIns;
88	/** MAC address. */
89	RTMAC MAC;
90	/** Static IP address of the interface. */
91	char *pszIP;
92	/** Netmask of the interface. */
93	char *pszNetmask;
94	/** Gateway for the interface. */
95	char *pszGateway;
96	/** lwIP network interface description. */
97	struct netif IntNetIF;
98	/** lwIP ARP timer. */
99	PTMTIMERR3 ARPTimer;
100	/** lwIP TCP fast timer. */
101	PTMTIMERR3 TCPFastTimer;
102	/** lwIP TCP slow timer. */
103	PTMTIMERR3 TCPSlowTimer;
104	/** lwIP semaphore to coordinate TCPIP init/terminate. */
105	sys_sem_t LWIPTcpInitSem;
106	/** hack: get linking right. remove this eventually, once the device
107	* provides a proper interface to all IP stack functions. */
108	const void *pLinkHack;
109	/** Flag whether the link is up. */
110	bool fLnkUp;
111	/**
112	* In callback we're getting status of interface adding operation (TCPIP thread),
113	* but we need inform constructing routine whether it was success or not(EMT thread).
114	*/
115	int rcInitialization;
116	} DEVINTNETIP;
117	/** Pointer to the instance data for an Internal Network IP stack. */
118	typedef DEVINTNETIP *PDEVINTNETIP;
119
120
121	/*********************************************************************************************************************************
122	* Global Variables *
123	*********************************************************************************************************************************/
124	/**
125	* Pointer to the (only) instance data in this device.
126	*/
127	static PDEVINTNETIP g_pDevINIPData = NULL;
128
129	/*
130	* really ugly hack to avoid linking problems on unix style platforms
131	* using .a libraries for now.
132	*/
133	static const struct CLANG11WEIRDNESS { PFNRT pfn; } g_pDevINILinkHack[] =
134	{
135	{ (PFNRT)lwip_socket },
136	{ (PFNRT)lwip_close },
137	{ (PFNRT)lwip_setsockopt },
138	{ (PFNRT)lwip_recv },
139	{ (PFNRT)lwip_send },
140	{ (PFNRT)lwip_select },
141	};
142
143
144	#if 0 /* unused */
145	/**
146	* Output a TCP/IP packet on the interface. Uses the generic lwIP ARP
147	* code to resolve the address and call the link-level packet function.
148	*
149	* @returns lwIP error code
150	* @param netif Interface on which to send IP packet.
151	* @param p Packet data.
152	* @param ipaddr Destination IP address.
153	*/
154	static err_t devINIPOutput(struct netif netif, struct pbuf p, struct ip_addr *ipaddr)
155	{
156	err_t lrc;
157	LogFlow(("%s: netif=%p p=%p ipaddr=%#04x\n", __FUNCTION__, netif, p,
158	ipaddr->addr));
159
160	lrc = lwip_etharp_output(netif, p, ipaddr);
161
162	LogFlow(("%s: return %d\n", __FUNCTION__, lrc));
163	return lrc;
164	}
165	#endif
166
167	/**
168	* Output a raw packet on the interface.
169	*
170	* @returns lwIP error code
171	* @param netif Interface on which to send frame.
172	* @param p Frame data.
173	*/
174	static err_t devINIPOutputRaw(struct netif netif, struct pbuf p)
175	{
176	NOREF(netif);
177	int rc = VINF_SUCCESS;
178
179	LogFlow(("%s: netif=%p p=%p\n", __FUNCTION__, netif, p));
180	Assert(g_pDevINIPData);
181	Assert(g_pDevINIPData->pDrv);
182
183	/* Silently ignore packets being sent while lwIP isn't set up. */
184	if (g_pDevINIPData)
185	{
186	PPDMSCATTERGATHER pSgBuf;
187
188	rc = g_pDevINIPData->pDrv->pfnBeginXmit(g_pDevINIPData->pDrv, true /* fOnWorkerThread */);
189	if (RT_FAILURE(rc))
190	return ERR_IF;
191
192	rc = g_pDevINIPData->pDrv->pfnAllocBuf(g_pDevINIPData->pDrv, DEVINIP_MAX_FRAME, NULL /pGso/, &pSgBuf);
193	if (RT_SUCCESS(rc))
194	{
195	#if ETH_PAD_SIZE
196	lwip_pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
197	#endif
198
199	uint8_t pbBuf = pSgBuf ? (uint8_t )pSgBuf->aSegs[0].pvSeg : NULL;
200	size_t cbBuf = 0;
201	for (struct pbuf *q = p; q != NULL; q = q->next)
202	{
203	if (cbBuf + q->len <= DEVINIP_MAX_FRAME)
204	{
205	if (RT_LIKELY(pbBuf))
206	{
207	memcpy(pbBuf, q->payload, q->len);
208	pbBuf += q->len;
209	}
210	cbBuf += q->len;
211	}
212	else
213	{
214	LogRel(("INIP: exceeded frame size\n"));
215	break;
216	}
217	}
218	if (cbBuf)
219	{
220	pSgBuf->cbUsed = cbBuf;
221	rc = g_pDevINIPData->pDrv->pfnSendBuf(g_pDevINIPData->pDrv, pSgBuf, true /* fOnWorkerThread */);
222	}
223	else
224	rc = g_pDevINIPData->pDrv->pfnFreeBuf(g_pDevINIPData->pDrv, pSgBuf);
225
226	#if ETH_PAD_SIZE
227	lwip_pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
228	#endif
229	}
230
231	g_pDevINIPData->pDrv->pfnEndXmit(g_pDevINIPData->pDrv);
232	}
233
234	err_t lrc = ERR_OK;
235	if (RT_FAILURE(rc))
236	lrc = ERR_IF;
237	LogFlow(("%s: return %d (vbox: %Rrc)\n", __FUNCTION__, rc, lrc));
238	return lrc;
239	}
240
241	/**
242	* Implements the ethernet interface backend initialization for lwIP.
243	*
244	* @returns lwIP error code
245	* @param netif Interface to configure.
246	*/
247	static err_t devINIPInterface(struct netif *netif) RT_NOTHROW_DEF
248	{
249	LogFlow(("%s: netif=%p\n", __FUNCTION__, netif));
250	Assert(g_pDevINIPData != NULL);
251	netif->state = g_pDevINIPData;
252	netif->hwaddr_len = sizeof(g_pDevINIPData->MAC);
253	memcpy(netif->hwaddr, &g_pDevINIPData->MAC, sizeof(g_pDevINIPData->MAC));
254	netif->mtu = DEVINIP_MAX_FRAME;
255	netif->flags = NETIF_FLAG_BROADCAST;
256	netif->flags \|= NETIF_FLAG_ETHARP;
257	netif->flags \|= NETIF_FLAG_ETHERNET;
258
259	#if LWIP_IPV6
260	netif_create_ip6_linklocal_address(netif, 0);
261	netif_ip6_addr_set_state(netif, 0, IP6_ADDR_VALID);
262	netif->output_ip6 = ethip6_output;
263	netif->ip6_autoconfig_enabled=1;
264	LogFunc(("netif: ipv6:%RTnaipv6\n", &netif->ip6_addr[0].addr[0]));
265	#endif
266
267	netif->output = lwip_etharp_output;
268	netif->linkoutput = devINIPOutputRaw;
269
270	LogFlow(("%s: success\n", __FUNCTION__));
271	return ERR_OK;
272	}
273
274	/**
275	* Parses CFGM parameters related to network connection
276	*/
277	static DECLCALLBACK(int) devINIPNetworkConfiguration(PPDMDEVINS pDevIns, PDEVINTNETIP pThis, PCFGMNODE pCfg)
278	{
279	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
280
281	int rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "IP", &pThis->pszIP);
282	if (RT_FAILURE(rc))
283	/** @todo perhaps we should panic if IPv4 address isn't specify, with assumtion that
284	* ISCSI target specified in IPv6 form. */
285	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"IP\" value"));
286
287	rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "Netmask", &pThis->pszNetmask);
288	if (RT_FAILURE(rc))
289	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"Netmask\" value"));
290
291	rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "Gateway", &pThis->pszGateway);
292	if ( RT_FAILURE(rc)
293	&& rc != VERR_CFGM_VALUE_NOT_FOUND)
294	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"Gateway\" value"));
295
296	return VINF_SUCCESS;
297	}
298
299	/**
300	* Wait until data can be received.
301	*
302	* @returns VBox status code. VINF_SUCCESS means there is at least one receive descriptor available.
303	* @param pInterface PDM network port interface pointer.
304	* @param cMillies Number of milliseconds to wait. 0 means return immediately.
305	*/
306	static DECLCALLBACK(int) devINIPNetworkDown_WaitInputAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies)
307	{
308	RT_NOREF(pInterface, cMillies);
309	LogFlow(("%s: pInterface=%p\n", __FUNCTION__, pInterface));
310	LogFlow(("%s: return VINF_SUCCESS\n", __FUNCTION__));
311	return VINF_SUCCESS;
312	}
313
314	/**
315	* Receive data and pass it to lwIP for processing.
316	*
317	* @returns VBox status code
318	* @param pInterface PDM network port interface pointer.
319	* @param pvBuf Pointer to frame data.
320	* @param cb Frame size.
321	*/
322	static DECLCALLBACK(int) devINIPNetworkDown_Input(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb)
323	{
324	RT_NOREF(pInterface);
325	const uint8_t pbBuf = (const uint8_t )pvBuf;
326	size_t len = cb;
327	const struct eth_hdr *ethhdr;
328	struct pbuf p, q;
329
330	LogFlow(("%s: pInterface=%p pvBuf=%p cb=%lu\n", __FUNCTION__, pInterface, pvBuf, cb));
331	Assert(g_pDevINIPData);
332	Assert(g_pDevINIPData->pDrv);
333
334	/* Silently ignore packets being received while lwIP isn't set up. */
335	if (!g_pDevINIPData)
336	{
337	LogFlow(("%s: return %Rrc (no global)\n", __FUNCTION__, VINF_SUCCESS));
338	return VINF_SUCCESS;
339	}
340
341	#if ETH_PAD_SIZE
342	len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
343	#endif
344
345	/* We allocate a pbuf chain of pbufs from the pool. */
346	Assert((u16_t)len == len);
347	p = lwip_pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL);
348	if (p != NULL)
349	{
350	#if ETH_PAD_SIZE
351	lwip_pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
352	#endif
353
354	for (q = p; q != NULL; q = q->next)
355	{
356	/* Fill the buffers, and clean out unused buffer space. */
357	memcpy(q->payload, pbBuf, RT_MIN(cb, q->len));
358	pbBuf += RT_MIN(cb, q->len);
359	if (q->len > cb)
360	memset(((uint8_t *)q->payload) + cb, '\0', q->len - cb);
361	cb -= RT_MIN(cb, q->len);
362	}
363
364	ethhdr = (const struct eth_hdr *)p->payload;
365	struct netif *iface = &g_pDevINIPData->IntNetIF;
366
367	/* We've setup flags NETIF_FLAG_ETHARP and NETIF_FLAG_ETHERNET
368	so this should be thread-safe. */
369	tcpip_input(p,iface);
370	}
371
372	LogFlow(("%s: return %Rrc\n", __FUNCTION__, VINF_SUCCESS));
373	return VINF_SUCCESS;
374	}
375
376	/**
377	* @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending}
378	*/
379	static DECLCALLBACK(void) devINIPNetworkDown_XmitPending(PPDMINETWORKDOWN pInterface)
380	{
381	NOREF(pInterface);
382	}
383
384
385	/**
386	* Signals the end of lwIP TCPIP initialization.
387	*
388	* @param arg opaque argument, here the pointer to the PDEVINTNETIP.
389	* @note TCPIP thread, corresponding EMT waiting on semaphore.
390	*/
391	static DECLCALLBACK(void) devINIPTcpipInitDone(void *arg)
392	{
393	PDEVINTNETIP pThis = (PDEVINTNETIP)arg;
394	AssertPtrReturnVoid(arg);
395
396	pThis->rcInitialization = VINF_SUCCESS;
397	struct in_addr ip;
398	if (!inet_aton(pThis->pszIP, &ip))
399	{
400	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
401	PDMDEV_SET_ERROR(pThis->pDevIns, pThis->rcInitialization, N_("Configuration error: Invalid \"IP\" value"));
402	return;
403	}
404	struct ip_addr ipaddr;
405	memcpy(&ipaddr, &ip, sizeof(ipaddr));
406
407	if (!inet_aton(pThis->pszNetmask, &ip))
408	{
409	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
410	PDMDEV_SET_ERROR(pThis->pDevIns, pThis->rcInitialization, N_("Configuration error: Invalid \"Netmask\" value"));
411	return;
412	}
413	struct ip_addr netmask;
414	memcpy(&netmask, &ip, sizeof(netmask));
415
416	if (pThis->pszGateway)
417	{
418	if (!inet_aton(pThis->pszGateway, &ip))
419	{
420	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
421	PDMDEV_SET_ERROR(pThis->pDevIns, pThis->rcInitialization, N_("Configuration error: Invalid \"Gateway\" value"));
422	return;
423	}
424	}
425	else
426	inet_aton(pThis->pszIP, &ip);
427	struct ip_addr gw;
428	memcpy(&gw, &ip, sizeof(gw));
429
430	pThis->IntNetIF.name[0] = 'I';
431	pThis->IntNetIF.name[1] = 'N';
432
433	struct netif *ret = netif_add(&pThis->IntNetIF, &ipaddr, &netmask, &gw, NULL, devINIPInterface, lwip_tcpip_input);
434	if (!ret)
435	{
436
437	pThis->rcInitialization = VERR_NET_NO_NETWORK;
438	PDMDEV_SET_ERROR(pThis->pDevIns, pThis->rcInitialization, N_("netif_add failed"));
439	return;
440	}
441
442	lwip_netif_set_default(&pThis->IntNetIF);
443	lwip_netif_set_up(&pThis->IntNetIF);
444	}
445
446
447	/**
448	* This callback is for finitializing our activity on TCPIP thread.
449	* @todo XXX: We do it only for new LWIP, old LWIP will stay broken for now.
450	*/
451	static DECLCALLBACK(void) devINIPTcpipFiniDone(void *arg)
452	{
453	PDEVINTNETIP pThis = (PDEVINTNETIP)arg;
454	AssertPtrReturnVoid(arg);
455
456	netif_set_link_down(&pThis->IntNetIF);
457	netif_set_down(&pThis->IntNetIF);
458	netif_remove(&pThis->IntNetIF);
459	}
460
461
462	/**
463	* Gets the current Media Access Control (MAC) address.
464	*
465	* @returns VBox status code.
466	* @param pInterface Pointer to the interface structure containing the called function pointer.
467	* @param pMac Where to store the MAC address.
468	* @thread EMT
469	*/
470	static DECLCALLBACK(int) devINIPGetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
471	{
472	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
473	memcpy(pMac, pThis->MAC.au8, sizeof(RTMAC));
474	return VINF_SUCCESS;
475	}
476
477	/**
478	* Gets the new link state.
479	*
480	* @returns The current link state.
481	* @param pInterface Pointer to the interface structure containing the called function pointer.
482	* @thread EMT
483	*/
484	static DECLCALLBACK(PDMNETWORKLINKSTATE) devINIPGetLinkState(PPDMINETWORKCONFIG pInterface)
485	{
486	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
487	if (pThis->fLnkUp)
488	return PDMNETWORKLINKSTATE_UP;
489	return PDMNETWORKLINKSTATE_DOWN;
490	}
491
492
493	/**
494	* Sets the new link state.
495	*
496	* @returns VBox status code.
497	* @param pInterface Pointer to the interface structure containing the called function pointer.
498	* @param enmState The new link state
499	*/
500	static DECLCALLBACK(int) devINIPSetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
501	{
502	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
503	bool fNewUp = enmState == PDMNETWORKLINKSTATE_UP;
504
505	if (fNewUp != pThis->fLnkUp)
506	{
507	if (fNewUp)
508	{
509	LogFlowFunc(("Link is up\n"));
510	pThis->fLnkUp = true;
511	}
512	else
513	{
514	LogFlowFunc(("Link is down\n"));
515	pThis->fLnkUp = false;
516	}
517	if (pThis->pDrv)
518	pThis->pDrv->pfnNotifyLinkChanged(pThis->pDrv, enmState);
519	}
520	return VINF_SUCCESS;
521	}
522
523	/* -=-=-=-=- PDMIBASE -=-=-=-=- */
524
525	/**
526	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
527	*/
528	static DECLCALLBACK(void *) devINIPQueryInterface(PPDMIBASE pInterface,
529	const char *pszIID)
530	{
531	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, IBase);
532	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
533	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThis->INetworkDown);
534	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThis->INetworkConfig);
535	return NULL;
536	}
537
538	/* -=-=-=-=- PDMDEVREG -=-=-=-=- */
539
540	/**
541	* Destruct a device instance.
542	*
543	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
544	* resources can be freed correctly.
545	*
546	* @returns VBox status code.
547	* @param pDevIns The device instance data.
548	*/
549	static DECLCALLBACK(int) devINIPDestruct(PPDMDEVINS pDevIns)
550	{
551	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
552	LogFlow(("devINIPDestruct: pDevIns=%p\n", pDevIns));
553	PDEVINTNETIP pThis = PDMDEVINS_2_DATA(pDevIns, PDEVINTNETIP);
554
555	if (g_pDevINIPData != NULL)
556	vboxLwipCoreFinalize(devINIPTcpipFiniDone, pThis);
557
558	PDMDevHlpMMHeapFree(pDevIns, pThis->pszIP);
559	pThis->pszIP = NULL;
560	PDMDevHlpMMHeapFree(pDevIns, pThis->pszNetmask);
561	pThis->pszNetmask = NULL;
562	PDMDevHlpMMHeapFree(pDevIns, pThis->pszGateway);
563	pThis->pszGateway = NULL;
564
565	LogFlow(("%s: success\n", __FUNCTION__));
566	return VINF_SUCCESS;
567	}
568
569
570	/**
571	* @interface_method_impl{PDMDEVREG,pfnConstruct}
572	*/
573	static DECLCALLBACK(int) devINIPConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
574	{
575	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
576	PDEVINTNETIP pThis = PDMDEVINS_2_DATA(pDevIns, PDEVINTNETIP);
577	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
578	LogFlow(("devINIPConstruct: pDevIns=%p iInstance=%d pCfg=%p\n", pDevIns, iInstance, pCfg));
579	RT_NOREF(iInstance);
580
581	Assert(iInstance == 0);
582
583	/*
584	* Init the static parts.
585	*/
586	//pThis->pszIP = NULL;
587	//pThis->pszNetmask = NULL;
588	//pThis->pszGateway = NULL;
589	/* Pointer to device instance */
590	pThis->pDevIns = pDevIns;
591	/* IBase */
592	pThis->IBase.pfnQueryInterface = devINIPQueryInterface;
593	/* INetworkDown */
594	pThis->INetworkDown.pfnWaitReceiveAvail = devINIPNetworkDown_WaitInputAvail;
595	pThis->INetworkDown.pfnReceive = devINIPNetworkDown_Input;
596	pThis->INetworkDown.pfnXmitPending = devINIPNetworkDown_XmitPending;
597	/* INetworkConfig */
598	pThis->INetworkConfig.pfnGetMac = devINIPGetMac;
599	pThis->INetworkConfig.pfnGetLinkState = devINIPGetLinkState;
600	pThis->INetworkConfig.pfnSetLinkState = devINIPSetLinkState;
601
602
603	/*
604	* Validate the config.
605	*/
606	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "MAC\|IP\|IPv6\|Netmask\|Gateway", "");
607
608	/*
609	* Get the configuration settings.
610	*/
611	int rc = pHlp->pfnCFGMQueryBytes(pCfg, "MAC", &pThis->MAC, sizeof(pThis->MAC));
612	if (rc == VERR_CFGM_NOT_BYTES)
613	{
614	char szMAC[64];
615	rc = pHlp->pfnCFGMQueryString(pCfg, "MAC", &szMAC[0], sizeof(szMAC));
616	if (RT_SUCCESS(rc))
617	{
618	char *macStr = &szMAC[0];
619	char pMac = (char )&pThis->MAC;
620	for (uint32_t i = 0; i < 6; i++)
621	{
622	if (!macStr \|\| !macStr[1] \|\| macStr == ':' \|\| macStr[1] == ':')
623	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
624	N_("Configuration error: Invalid \"MAC\" value"));
625	char c1 = *macStr++ - '0';
626	if (c1 > 9)
627	c1 -= 7;
628	char c2 = *macStr++ - '0';
629	if (c2 > 9)
630	c2 -= 7;
631	*pMac++ = ((c1 & 0x0f) << 4) \| (c2 & 0x0f);
632	if (i != 5 && *macStr == ':')
633	macStr++;
634	}
635	}
636	}
637	if (RT_FAILURE(rc))
638	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"MAC\" value"));
639	rc = devINIPNetworkConfiguration(pDevIns, pThis, pCfg);
640	AssertLogRelRCReturn(rc, rc);
641
642	/*
643	* Attach driver and query the network connector interface.
644	*/
645	rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThis->IBase, &pThis->pDrvBase, "Network Port");
646	if (RT_FAILURE(rc))
647	{
648	pThis->pDrvBase = NULL;
649	pThis->pDrv = NULL;
650	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Error attaching device below us"));
651	}
652	pThis->pDrv = PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMINETWORKUP);
653	AssertMsgReturn(pThis->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"), VERR_PDM_MISSING_INTERFACE_BELOW);
654
655
656	/*
657	* Set up global pointer to interface data.
658	*/
659	g_pDevINIPData = pThis;
660
661
662	/* link hack */
663	pThis->pLinkHack = g_pDevINILinkHack;
664
665	/*
666	* Initialize lwIP.
667	*/
668	vboxLwipCoreInitialize(devINIPTcpipInitDone, pThis);
669
670	/* this rc could be updated in devINIPTcpInitDone thread */
671	AssertRCReturn(pThis->rcInitialization, pThis->rcInitialization);
672
673
674	LogFlow(("devINIPConstruct: return %Rrc\n", rc));
675	return rc;
676	}
677
678
679	/**
680	* Query whether lwIP is initialized or not. Since there is only a single
681	* instance of this device ever for a VM, it can be a global function.
682	*
683	* @returns True if lwIP is initialized.
684	*/
685	bool DevINIPConfigured(void)
686	{
687	return g_pDevINIPData != NULL;
688	}
689
690
691	/**
692	* Internal network IP stack device registration record.
693	*/
694	const PDMDEVREG g_DeviceINIP =
695	{
696	/* .u32Version = */ PDM_DEVREG_VERSION,
697	/* .uReserved0 = */ 0,
698	/* .szName = */ "IntNetIP",
699	/* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_NEW_STYLE,
700	/* .fClass = / PDM_DEVREG_CLASS_VMM_DEV, / As this is used by the storage devices, it must come earlier. */
701	/* .cMaxInstances = */ 1,
702	/* .uSharedVersion = */ 42,
703	/* .cbInstanceShared = */ sizeof(DEVINTNETIP),
704	/* .cbInstanceCC = */ 0,
705	/* .cbInstanceRC = */ 0,
706	/* .cMaxPciDevices = */ 0,
707	/* .cMaxMsixVectors = */ 0,
708	/* .pszDescription = */ "Internal Network IP stack device",
709	#if defined(IN_RING3)
710	/* .pszRCMod = */ "",
711	/* .pszR0Mod = */ "",
712	/* .pfnConstruct = */ devINIPConstruct,
713	/* .pfnDestruct = */ devINIPDestruct,
714	/* .pfnRelocate = */ NULL,
715	/* .pfnMemSetup = */ NULL,
716	/* .pfnPowerOn = */ NULL,
717	/* .pfnReset = */ NULL,
718	/* .pfnSuspend = */ NULL,
719	/* .pfnResume = */ NULL,
720	/* .pfnAttach = */ NULL,
721	/* .pfnDetach = */ NULL,
722	/* .pfnQueryInterface = */ NULL,
723	/* .pfnInitComplete = */ NULL,
724	/* .pfnPowerOff = */ NULL,
725	/* .pfnSoftReset = */ NULL,
726	/* .pfnReserved0 = */ NULL,
727	/* .pfnReserved1 = */ NULL,
728	/* .pfnReserved2 = */ NULL,
729	/* .pfnReserved3 = */ NULL,
730	/* .pfnReserved4 = */ NULL,
731	/* .pfnReserved5 = */ NULL,
732	/* .pfnReserved6 = */ NULL,
733	/* .pfnReserved7 = */ NULL,
734	#elif defined(IN_RING0)
735	/* .pfnEarlyConstruct = */ NULL,
736	/* .pfnConstruct = */ NULL,
737	/* .pfnDestruct = */ NULL,
738	/* .pfnFinalDestruct = */ NULL,
739	/* .pfnRequest = */ NULL,
740	/* .pfnReserved0 = */ NULL,
741	/* .pfnReserved1 = */ NULL,
742	/* .pfnReserved2 = */ NULL,
743	/* .pfnReserved3 = */ NULL,
744	/* .pfnReserved4 = */ NULL,
745	/* .pfnReserved5 = */ NULL,
746	/* .pfnReserved6 = */ NULL,
747	/* .pfnReserved7 = */ NULL,
748	#elif defined(IN_RC)
749	/* .pfnConstruct = */ NULL,
750	/* .pfnReserved0 = */ NULL,
751	/* .pfnReserved1 = */ NULL,
752	/* .pfnReserved2 = */ NULL,
753	/* .pfnReserved3 = */ NULL,
754	/* .pfnReserved4 = */ NULL,
755	/* .pfnReserved5 = */ NULL,
756	/* .pfnReserved6 = */ NULL,
757	/* .pfnReserved7 = */ NULL,
758	#else
759	# error "Not in IN_RING3, IN_RING0 or IN_RC!"
760	#endif
761	/* .u32VersionEnd = */ PDM_DEVREG_VERSION
762	};
763

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source: vbox/trunk/src/VBox/Devices/Network/DevINIP.cpp@ 93115

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