DevINIP.cpp@ 81696

Last change on this file since 81696 was 81591, checked in by vboxsync, 5 years ago
Devices: Use PDMDEVINS_2_DATA and PDMDEVINS_2_DATA. bugref:9218
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1	/* $Id: DevINIP.cpp 81591 2019-10-30 14:14:10Z vboxsync $ */
2	/** @file
3	* DevINIP - Internal Network IP stack device/service.
4	*/
5
6	/*
7	* Copyright (C) 2007-2019 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	/**
70	* Internal Network IP stack device instance data.
71	*
72	* @implements PDMIBASE
73	* @implements PDMINETWORKDOWN
74	*/
75	typedef struct DEVINTNETIP
76	{
77	/** The base interface for LUN\#0. */
78	PDMIBASE IBase;
79	/** The network port this device provides (LUN\#0). */
80	PDMINETWORKDOWN INetworkDown;
81	/** The network configuration port this device provides (LUN\#0). */
82	PDMINETWORKCONFIG INetworkConfig;
83	/** The base interface of the network driver below us. */
84	PPDMIBASE pDrvBase;
85	/** The connector of the network driver below us. */
86	PPDMINETWORKUP pDrv;
87	/** Pointer to the device instance. */
88	PPDMDEVINSR3 pDevIns;
89	/** MAC address. */
90	RTMAC MAC;
91	/** Static IP address of the interface. */
92	char *pszIP;
93	/** Netmask of the interface. */
94	char *pszNetmask;
95	/** Gateway for the interface. */
96	char *pszGateway;
97	/** lwIP network interface description. */
98	struct netif IntNetIF;
99	/** lwIP ARP timer. */
100	PTMTIMERR3 ARPTimer;
101	/** lwIP TCP fast timer. */
102	PTMTIMERR3 TCPFastTimer;
103	/** lwIP TCP slow timer. */
104	PTMTIMERR3 TCPSlowTimer;
105	/** lwIP semaphore to coordinate TCPIP init/terminate. */
106	sys_sem_t LWIPTcpInitSem;
107	/** hack: get linking right. remove this eventually, once the device
108	* provides a proper interface to all IP stack functions. */
109	const void *pLinkHack;
110	/** Flag whether the link is up. */
111	bool fLnkUp;
112	/**
113	* In callback we're getting status of interface adding operation (TCPIP thread),
114	* but we need inform constructing routine whether it was success or not(EMT thread).
115	*/
116	int rcInitialization;
117	} DEVINTNETIP, *PDEVINTNETIP;
118
119
120	/*********************************************************************************************************************************
121	* Global Variables *
122	*********************************************************************************************************************************/
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 PFNRT 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)
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	int rc = VINF_SUCCESS;
280	rc = CFGMR3QueryStringAlloc(pCfg, "IP", &pThis->pszIP);
281	if (RT_FAILURE(rc))
282	{
283	PDMDEV_SET_ERROR(pDevIns, rc,
284	N_("Configuration error: Failed to get the \"IP\" value"));
285	/** @todo perhaps we should panic if IPv4 address isn't specify, with assumtion that
286	* ISCSI target specified in IPv6 form.
287	*/
288	return rc;
289	}
290
291	rc = CFGMR3QueryStringAlloc(pCfg, "Netmask", &pThis->pszNetmask);
292	if (RT_FAILURE(rc))
293	{
294	PDMDEV_SET_ERROR(pDevIns, rc,
295	N_("Configuration error: Failed to get the \"Netmask\" value"));
296	return rc;
297	}
298	rc = CFGMR3QueryStringAlloc(pCfg, "Gateway", &pThis->pszGateway);
299	if ( RT_FAILURE(rc)
300	&& rc != VERR_CFGM_VALUE_NOT_FOUND)
301	{
302	PDMDEV_SET_ERROR(pDevIns, rc,
303	N_("Configuration error: Failed to get the \"Gateway\" value"));
304	return rc;
305	}
306	return VINF_SUCCESS;
307	}
308
309	/**
310	* Wait until data can be received.
311	*
312	* @returns VBox status code. VINF_SUCCESS means there is at least one receive descriptor available.
313	* @param pInterface PDM network port interface pointer.
314	* @param cMillies Number of milliseconds to wait. 0 means return immediately.
315	*/
316	static DECLCALLBACK(int) devINIPNetworkDown_WaitInputAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies)
317	{
318	RT_NOREF(pInterface, cMillies);
319	LogFlow(("%s: pInterface=%p\n", __FUNCTION__, pInterface));
320	LogFlow(("%s: return VINF_SUCCESS\n", __FUNCTION__));
321	return VINF_SUCCESS;
322	}
323
324	/**
325	* Receive data and pass it to lwIP for processing.
326	*
327	* @returns VBox status code
328	* @param pInterface PDM network port interface pointer.
329	* @param pvBuf Pointer to frame data.
330	* @param cb Frame size.
331	*/
332	static DECLCALLBACK(int) devINIPNetworkDown_Input(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb)
333	{
334	RT_NOREF(pInterface);
335	const uint8_t pbBuf = (const uint8_t )pvBuf;
336	size_t len = cb;
337	const struct eth_hdr *ethhdr;
338	struct pbuf p, q;
339
340	LogFlow(("%s: pInterface=%p pvBuf=%p cb=%lu\n", __FUNCTION__, pInterface, pvBuf, cb));
341	Assert(g_pDevINIPData);
342	Assert(g_pDevINIPData->pDrv);
343
344	/* Silently ignore packets being received while lwIP isn't set up. */
345	if (!g_pDevINIPData)
346	{
347	LogFlow(("%s: return %Rrc (no global)\n", __FUNCTION__, VINF_SUCCESS));
348	return VINF_SUCCESS;
349	}
350
351	#if ETH_PAD_SIZE
352	len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
353	#endif
354
355	/* We allocate a pbuf chain of pbufs from the pool. */
356	Assert((u16_t)len == len);
357	p = lwip_pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL);
358	if (p != NULL)
359	{
360	#if ETH_PAD_SIZE
361	lwip_pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
362	#endif
363
364	for (q = p; q != NULL; q = q->next)
365	{
366	/* Fill the buffers, and clean out unused buffer space. */
367	memcpy(q->payload, pbBuf, RT_MIN(cb, q->len));
368	pbBuf += RT_MIN(cb, q->len);
369	if (q->len > cb)
370	memset(((uint8_t *)q->payload) + cb, '\0', q->len - cb);
371	cb -= RT_MIN(cb, q->len);
372	}
373
374	ethhdr = (const struct eth_hdr *)p->payload;
375	struct netif *iface = &g_pDevINIPData->IntNetIF;
376
377	/* We've setup flags NETIF_FLAG_ETHARP and NETIF_FLAG_ETHERNET
378	so this should be thread-safe. */
379	tcpip_input(p,iface);
380	}
381
382	LogFlow(("%s: return %Rrc\n", __FUNCTION__, VINF_SUCCESS));
383	return VINF_SUCCESS;
384	}
385
386	/**
387	* @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending}
388	*/
389	static DECLCALLBACK(void) devINIPNetworkDown_XmitPending(PPDMINETWORKDOWN pInterface)
390	{
391	NOREF(pInterface);
392	}
393
394
395	/**
396	* Signals the end of lwIP TCPIP initialization.
397	*
398	* @note: TCPIP thread, corresponding EMT waiting on semaphore.
399	* @param arg opaque argument, here the pointer to the PDEVINTNETIP.
400	*/
401	static DECLCALLBACK(void) devINIPTcpipInitDone(void *arg)
402	{
403	PDEVINTNETIP pThis = (PDEVINTNETIP)arg;
404	AssertPtrReturnVoid(arg);
405
406	pThis->rcInitialization = VINF_SUCCESS;
407	{
408	struct netif *ret;
409	struct ip_addr ipaddr, netmask, gw;
410	struct in_addr ip;
411
412	if (!inet_aton(pThis->pszIP, &ip))
413	{
414	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
415	PDMDEV_SET_ERROR(pThis->pDevIns,
416	pThis->rcInitialization,
417	N_("Configuration error: Invalid \"IP\" value"));
418	goto done;
419	}
420	memcpy(&ipaddr, &ip, sizeof(ipaddr));
421
422	if (!inet_aton(pThis->pszNetmask, &ip))
423	{
424	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
425	PDMDEV_SET_ERROR(pThis->pDevIns,
426	pThis->rcInitialization,
427	N_("Configuration error: Invalid \"Netmask\" value"));
428	goto done;
429	}
430	memcpy(&netmask, &ip, sizeof(netmask));
431
432	if (pThis->pszGateway)
433	{
434	if (!inet_aton(pThis->pszGateway, &ip))
435	{
436	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
437	PDMDEV_SET_ERROR(pThis->pDevIns,
438	pThis->rcInitialization,
439	N_("Configuration error: Invalid \"Gateway\" value"));
440	goto done;
441	}
442
443	}
444	else
445	{
446	inet_aton(pThis->pszIP, &ip);
447	}
448	memcpy(&gw, &ip, sizeof(gw));
449
450	pThis->IntNetIF.name[0] = 'I';
451	pThis->IntNetIF.name[1] = 'N';
452
453	ret = netif_add(&pThis->IntNetIF, &ipaddr, &netmask, &gw, NULL,
454	devINIPInterface, lwip_tcpip_input);
455
456	if (!ret)
457	{
458
459	pThis->rcInitialization = VERR_NET_NO_NETWORK;
460	PDMDEV_SET_ERROR(pThis->pDevIns,
461	pThis->rcInitialization,
462	N_("netif_add failed"));
463	goto done;
464	}
465
466	lwip_netif_set_default(&pThis->IntNetIF);
467	lwip_netif_set_up(&pThis->IntNetIF);
468	}
469	done:
470	return;
471	}
472
473
474	/**
475	* This callback is for finitializing our activity on TCPIP thread.
476	* XXX: We do it only for new LWIP, old LWIP will stay broken for now.
477	*/
478	static DECLCALLBACK(void) devINIPTcpipFiniDone(void *arg)
479	{
480	PDEVINTNETIP pThis = (PDEVINTNETIP)arg;
481	AssertPtrReturnVoid(arg);
482
483	netif_set_link_down(&pThis->IntNetIF);
484	netif_set_down(&pThis->IntNetIF);
485	netif_remove(&pThis->IntNetIF);
486	}
487
488
489	/**
490	* Gets the current Media Access Control (MAC) address.
491	*
492	* @returns VBox status code.
493	* @param pInterface Pointer to the interface structure containing the called function pointer.
494	* @param pMac Where to store the MAC address.
495	* @thread EMT
496	*/
497	static DECLCALLBACK(int) devINIPGetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
498	{
499	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
500	memcpy(pMac, pThis->MAC.au8, sizeof(RTMAC));
501	return VINF_SUCCESS;
502	}
503
504	/**
505	* Gets the new link state.
506	*
507	* @returns The current link state.
508	* @param pInterface Pointer to the interface structure containing the called function pointer.
509	* @thread EMT
510	*/
511	static DECLCALLBACK(PDMNETWORKLINKSTATE) devINIPGetLinkState(PPDMINETWORKCONFIG pInterface)
512	{
513	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
514	if (pThis->fLnkUp)
515	return PDMNETWORKLINKSTATE_UP;
516	return PDMNETWORKLINKSTATE_DOWN;
517	}
518
519
520	/**
521	* Sets the new link state.
522	*
523	* @returns VBox status code.
524	* @param pInterface Pointer to the interface structure containing the called function pointer.
525	* @param enmState The new link state
526	*/
527	static DECLCALLBACK(int) devINIPSetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
528	{
529	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
530	bool fNewUp = enmState == PDMNETWORKLINKSTATE_UP;
531
532	if (fNewUp != pThis->fLnkUp)
533	{
534	if (fNewUp)
535	{
536	LogFlowFunc(("Link is up\n"));
537	pThis->fLnkUp = true;
538	}
539	else
540	{
541	LogFlowFunc(("Link is down\n"));
542	pThis->fLnkUp = false;
543	}
544	if (pThis->pDrv)
545	pThis->pDrv->pfnNotifyLinkChanged(pThis->pDrv, enmState);
546	}
547	return VINF_SUCCESS;
548	}
549
550	/* -=-=-=-=- PDMIBASE -=-=-=-=- */
551
552	/**
553	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
554	*/
555	static DECLCALLBACK(void *) devINIPQueryInterface(PPDMIBASE pInterface,
556	const char *pszIID)
557	{
558	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, IBase);
559	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
560	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThis->INetworkDown);
561	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThis->INetworkConfig);
562	return NULL;
563	}
564
565	/* -=-=-=-=- PDMDEVREG -=-=-=-=- */
566
567	/**
568	* Destruct a device instance.
569	*
570	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
571	* resources can be freed correctly.
572	*
573	* @returns VBox status code.
574	* @param pDevIns The device instance data.
575	*/
576	static DECLCALLBACK(int) devINIPDestruct(PPDMDEVINS pDevIns)
577	{
578	PDEVINTNETIP pThis = PDMDEVINS_2_DATA(pDevIns, PDEVINTNETIP);
579
580	LogFlow(("%s: pDevIns=%p\n", __FUNCTION__, pDevIns));
581	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
582
583	if (g_pDevINIPData != NULL)
584	vboxLwipCoreFinalize(devINIPTcpipFiniDone, pThis);
585
586	MMR3HeapFree(pThis->pszIP);
587	pThis->pszIP = NULL;
588	MMR3HeapFree(pThis->pszNetmask);
589	pThis->pszNetmask = NULL;
590	MMR3HeapFree(pThis->pszGateway);
591	pThis->pszGateway = NULL;
592
593	LogFlow(("%s: success\n", __FUNCTION__));
594	return VINF_SUCCESS;
595	}
596
597
598	/**
599	* @interface_method_impl{PDMDEVREG,pfnConstruct}
600	*/
601	static DECLCALLBACK(int) devINIPConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
602	{
603	RT_NOREF(iInstance);
604	PDEVINTNETIP pThis = PDMDEVINS_2_DATA(pDevIns, PDEVINTNETIP);
605
606	LogFlow(("%s: pDevIns=%p iInstance=%d pCfg=%p\n", __FUNCTION__,
607	pDevIns, iInstance, pCfg));
608
609	Assert(iInstance == 0);
610	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
611
612	/*
613	* Validate the config.
614	*/
615	if (!CFGMR3AreValuesValid(pCfg, "MAC\0IP\0"
616	"IPv6\0"
617	"Netmask\0Gateway\0"))
618	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
619	N_("Unknown Internal Networking IP configuration option"));
620
621	/*
622	* Init the static parts.
623	*/
624	pThis->pszIP = NULL;
625	pThis->pszNetmask = NULL;
626	pThis->pszGateway = NULL;
627	/* Pointer to device instance */
628	pThis->pDevIns = pDevIns;
629	/* IBase */
630	pThis->IBase.pfnQueryInterface = devINIPQueryInterface;
631	/* INetworkDown */
632	pThis->INetworkDown.pfnWaitReceiveAvail = devINIPNetworkDown_WaitInputAvail;
633	pThis->INetworkDown.pfnReceive = devINIPNetworkDown_Input;
634	pThis->INetworkDown.pfnXmitPending = devINIPNetworkDown_XmitPending;
635	/* INetworkConfig */
636	pThis->INetworkConfig.pfnGetMac = devINIPGetMac;
637	pThis->INetworkConfig.pfnGetLinkState = devINIPGetLinkState;
638	pThis->INetworkConfig.pfnSetLinkState = devINIPSetLinkState;
639
640	/*
641	* Get the configuration settings.
642	*/
643	int rc = CFGMR3QueryBytes(pCfg, "MAC", &pThis->MAC, sizeof(pThis->MAC));
644	if (rc == VERR_CFGM_NOT_BYTES)
645	{
646	char szMAC[64];
647	rc = CFGMR3QueryString(pCfg, "MAC", &szMAC[0], sizeof(szMAC));
648	if (RT_SUCCESS(rc))
649	{
650	char *macStr = &szMAC[0];
651	char pMac = (char )&pThis->MAC;
652	for (uint32_t i = 0; i < 6; i++)
653	{
654	if ( !macStr \|\| !(macStr + 1)
655	\|\| macStr == ':' \|\| (macStr + 1) == ':')
656	return PDMDEV_SET_ERROR(pDevIns,
657	VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
658	N_("Configuration error: Invalid \"MAC\" value"));
659	char c1 = *macStr++ - '0';
660	if (c1 > 9)
661	c1 -= 7;
662	char c2 = *macStr++ - '0';
663	if (c2 > 9)
664	c2 -= 7;
665	*pMac++ = ((c1 & 0x0f) << 4) \| (c2 & 0x0f);
666	if (i != 5 && *macStr == ':')
667	macStr++;
668	}
669	}
670	}
671	if (RT_FAILURE(rc))
672	return PDMDEV_SET_ERROR(pDevIns, rc,
673	N_("Configuration error: Failed to get the \"MAC\" value"));
674	rc = devINIPNetworkConfiguration(pDevIns, pThis, pCfg);
675	AssertLogRelRCReturn(rc, rc);
676
677	/*
678	* Attach driver and query the network connector interface.
679	*/
680	rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThis->IBase, &pThis->pDrvBase, "Network Port");
681	if (RT_FAILURE(rc))
682	{
683	pThis->pDrvBase = NULL;
684	pThis->pDrv = NULL;
685	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Error attaching device below us"));
686	}
687	pThis->pDrv = PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMINETWORKUP);
688	AssertMsgReturn(pThis->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"), VERR_PDM_MISSING_INTERFACE_BELOW);
689
690
691	/*
692	* Set up global pointer to interface data.
693	*/
694	g_pDevINIPData = pThis;
695
696
697	/* link hack */
698	pThis->pLinkHack = g_pDevINILinkHack;
699
700	/*
701	* Initialize lwIP.
702	*/
703	vboxLwipCoreInitialize(devINIPTcpipInitDone, pThis);
704
705	/* this rc could be updated in devINIPTcpInitDone thread */
706	AssertRCReturn(pThis->rcInitialization, pThis->rcInitialization);
707
708
709	LogFlow(("%s: return %Rrc\n", __FUNCTION__, rc));
710	return rc;
711	}
712
713
714	/**
715	* Query whether lwIP is initialized or not. Since there is only a single
716	* instance of this device ever for a VM, it can be a global function.
717	*
718	* @returns True if lwIP is initialized.
719	*/
720	bool DevINIPConfigured(void)
721	{
722	return g_pDevINIPData != NULL;
723	}
724
725
726	/**
727	* Internal network IP stack device registration record.
728	*/
729	const PDMDEVREG g_DeviceINIP =
730	{
731	/* .u32Version = */ PDM_DEVREG_VERSION,
732	/* .uReserved0 = */ 0,
733	/* .szName = */ "IntNetIP",
734	/* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS,
735	/* .fClass = / PDM_DEVREG_CLASS_VMM_DEV, / As this is used by the storage devices, it must come earlier. */
736	/* .cMaxInstances = */ 1,
737	/* .uSharedVersion = */ 42,
738	/* .cbInstanceShared = */ sizeof(DEVINTNETIP),
739	/* .cbInstanceCC = */ 0,
740	/* .cbInstanceRC = */ 0,
741	/* .cMaxPciDevices = */ 0,
742	/* .cMaxMsixVectors = */ 0,
743	/* .pszDescription = */ "Internal Network IP stack device",
744	#if defined(IN_RING3)
745	/* .pszRCMod = */ "",
746	/* .pszR0Mod = */ "",
747	/* .pfnConstruct = */ devINIPConstruct,
748	/* .pfnDestruct = */ devINIPDestruct,
749	/* .pfnRelocate = */ NULL,
750	/* .pfnMemSetup = */ NULL,
751	/* .pfnPowerOn = */ NULL,
752	/* .pfnReset = */ NULL,
753	/* .pfnSuspend = */ NULL,
754	/* .pfnResume = */ NULL,
755	/* .pfnAttach = */ NULL,
756	/* .pfnDetach = */ NULL,
757	/* .pfnQueryInterface = */ NULL,
758	/* .pfnInitComplete = */ NULL,
759	/* .pfnPowerOff = */ NULL,
760	/* .pfnSoftReset = */ NULL,
761	/* .pfnReserved0 = */ NULL,
762	/* .pfnReserved1 = */ NULL,
763	/* .pfnReserved2 = */ NULL,
764	/* .pfnReserved3 = */ NULL,
765	/* .pfnReserved4 = */ NULL,
766	/* .pfnReserved5 = */ NULL,
767	/* .pfnReserved6 = */ NULL,
768	/* .pfnReserved7 = */ NULL,
769	#elif defined(IN_RING0)
770	/* .pfnEarlyConstruct = */ NULL,
771	/* .pfnConstruct = */ NULL,
772	/* .pfnDestruct = */ NULL,
773	/* .pfnFinalDestruct = */ NULL,
774	/* .pfnRequest = */ NULL,
775	/* .pfnReserved0 = */ NULL,
776	/* .pfnReserved1 = */ NULL,
777	/* .pfnReserved2 = */ NULL,
778	/* .pfnReserved3 = */ NULL,
779	/* .pfnReserved4 = */ NULL,
780	/* .pfnReserved5 = */ NULL,
781	/* .pfnReserved6 = */ NULL,
782	/* .pfnReserved7 = */ NULL,
783	#elif defined(IN_RC)
784	/* .pfnConstruct = */ NULL,
785	/* .pfnReserved0 = */ NULL,
786	/* .pfnReserved1 = */ NULL,
787	/* .pfnReserved2 = */ NULL,
788	/* .pfnReserved3 = */ NULL,
789	/* .pfnReserved4 = */ NULL,
790	/* .pfnReserved5 = */ NULL,
791	/* .pfnReserved6 = */ NULL,
792	/* .pfnReserved7 = */ NULL,
793	#else
794	# error "Not in IN_RING3, IN_RING0 or IN_RC!"
795	#endif
796	/* .u32VersionEnd = */ PDM_DEVREG_VERSION
797	};
798

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source: vbox/trunk/src/VBox/Devices/Network/DevINIP.cpp@ 81696

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