DevINIP.cpp@ 63185

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1	/* $Id: DevINIP.cpp 62961 2016-08-04 08:14:22Z vboxsync $ */
2	/** @file
3	* DevINIP - Internal Network IP stack device/service.
4	*/
5
6	/*
7	* Copyright (C) 2007-2016 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
62	/** Maximum frame size this device can handle. */
63	#define DEVINIP_MAX_FRAME 1514
64
65
66	/*********************************************************************************************************************************
67	* Structures and Typedefs *
68	*********************************************************************************************************************************/
69
70	/**
71	* Internal Network IP stack device instance data.
72	*
73	* @implements PDMIBASE
74	* @implements PDMINETWORKDOWN
75	*/
76	typedef struct DEVINTNETIP
77	{
78	/** The base interface for LUN\#0. */
79	PDMIBASE IBase;
80	/** The network port this device provides (LUN\#0). */
81	PDMINETWORKDOWN INetworkDown;
82	/** The network configuration port this device provides (LUN\#0). */
83	PDMINETWORKCONFIG INetworkConfig;
84	/** The base interface of the network driver below us. */
85	PPDMIBASE pDrvBase;
86	/** The connector of the network driver below us. */
87	PPDMINETWORKUP pDrv;
88	/** Pointer to the device instance. */
89	PPDMDEVINSR3 pDevIns;
90	/** MAC address. */
91	RTMAC MAC;
92	/** Static IP address of the interface. */
93	char *pszIP;
94	/** Netmask of the interface. */
95	char *pszNetmask;
96	/** Gateway for the interface. */
97	char *pszGateway;
98	/** lwIP network interface description. */
99	struct netif IntNetIF;
100	/** lwIP ARP timer. */
101	PTMTIMERR3 ARPTimer;
102	/** lwIP TCP fast timer. */
103	PTMTIMERR3 TCPFastTimer;
104	/** lwIP TCP slow timer. */
105	PTMTIMERR3 TCPSlowTimer;
106	/** lwIP semaphore to coordinate TCPIP init/terminate. */
107	sys_sem_t LWIPTcpInitSem;
108	/** hack: get linking right. remove this eventually, once the device
109	* provides a proper interface to all IP stack functions. */
110	const void *pLinkHack;
111	/** Flag whether the link is up. */
112	bool fLnkUp;
113	/**
114	* In callback we're getting status of interface adding operation (TCPIP thread),
115	* but we need inform constructing routine whether it was success or not(EMT thread).
116	*/
117	int rcInitialization;
118	} DEVINTNETIP, *PDEVINTNETIP;
119
120
121	/*********************************************************************************************************************************
122	* Global Variables *
123	*********************************************************************************************************************************/
124
125	/**
126	* Pointer to the (only) instance data in this device.
127	*/
128	static PDEVINTNETIP g_pDevINIPData = NULL;
129
130	/*
131	* really ugly hack to avoid linking problems on unix style platforms
132	* using .a libraries for now.
133	*/
134	static const PFNRT g_pDevINILinkHack[] =
135	{
136	(PFNRT)lwip_socket,
137	(PFNRT)lwip_close,
138	(PFNRT)lwip_setsockopt,
139	(PFNRT)lwip_recv,
140	(PFNRT)lwip_send,
141	(PFNRT)lwip_select
142	};
143
144
145	/*********************************************************************************************************************************
146	* Internal Functions *
147	*********************************************************************************************************************************/
148	static err_t devINIPOutput(struct netif netif, struct pbuf p, struct ip_addr *ipaddr);
149	static err_t devINIPOutputRaw(struct netif netif, struct pbuf p);
150	static err_t devINIPInterface(struct netif *netif);
151
152
153	/**
154	* Output a TCP/IP packet on the interface. Uses the generic lwIP ARP
155	* code to resolve the address and call the link-level packet function.
156	*
157	* @returns lwIP error code
158	* @param netif Interface on which to send IP packet.
159	* @param p Packet data.
160	* @param ipaddr Destination IP address.
161	*/
162	static err_t devINIPOutput(struct netif netif, struct pbuf p, struct ip_addr *ipaddr)
163	{
164	err_t lrc;
165	LogFlow(("%s: netif=%p p=%p ipaddr=%#04x\n", __FUNCTION__, netif, p,
166	ipaddr->addr));
167
168	lrc = lwip_etharp_output(netif, p, ipaddr);
169
170	LogFlow(("%s: return %d\n", __FUNCTION__, lrc));
171	return lrc;
172	}
173
174	/**
175	* Output a raw packet on the interface.
176	*
177	* @returns lwIP error code
178	* @param netif Interface on which to send frame.
179	* @param p Frame data.
180	*/
181	static err_t devINIPOutputRaw(struct netif netif, struct pbuf p)
182	{
183	NOREF(netif);
184	int rc = VINF_SUCCESS;
185
186	LogFlow(("%s: netif=%p p=%p\n", __FUNCTION__, netif, p));
187	Assert(g_pDevINIPData);
188	Assert(g_pDevINIPData->pDrv);
189
190	/* Silently ignore packets being sent while lwIP isn't set up. */
191	if (g_pDevINIPData)
192	{
193	PPDMSCATTERGATHER pSgBuf;
194
195	rc = g_pDevINIPData->pDrv->pfnBeginXmit(g_pDevINIPData->pDrv, true /* fOnWorkerThread */);
196	if (RT_FAILURE(rc))
197	return ERR_IF;
198
199	rc = g_pDevINIPData->pDrv->pfnAllocBuf(g_pDevINIPData->pDrv, DEVINIP_MAX_FRAME, NULL /pGso/, &pSgBuf);
200	if (RT_SUCCESS(rc))
201	{
202	#if ETH_PAD_SIZE
203	lwip_pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
204	#endif
205
206	uint8_t pbBuf = pSgBuf ? (uint8_t )pSgBuf->aSegs[0].pvSeg : NULL;
207	size_t cbBuf = 0;
208	for (struct pbuf *q = p; q != NULL; q = q->next)
209	{
210	if (cbBuf + q->len <= DEVINIP_MAX_FRAME)
211	{
212	if (RT_LIKELY(pbBuf))
213	{
214	memcpy(pbBuf, q->payload, q->len);
215	pbBuf += q->len;
216	}
217	cbBuf += q->len;
218	}
219	else
220	{
221	LogRel(("INIP: exceeded frame size\n"));
222	break;
223	}
224	}
225	if (cbBuf)
226	{
227	pSgBuf->cbUsed = cbBuf;
228	rc = g_pDevINIPData->pDrv->pfnSendBuf(g_pDevINIPData->pDrv, pSgBuf, true /* fOnWorkerThread */);
229	}
230	else
231	rc = g_pDevINIPData->pDrv->pfnFreeBuf(g_pDevINIPData->pDrv, pSgBuf);
232
233	#if ETH_PAD_SIZE
234	lwip_pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
235	#endif
236	}
237
238	g_pDevINIPData->pDrv->pfnEndXmit(g_pDevINIPData->pDrv);
239	}
240
241	err_t lrc = ERR_OK;
242	if (RT_FAILURE(rc))
243	lrc = ERR_IF;
244	LogFlow(("%s: return %d (vbox: %Rrc)\n", __FUNCTION__, rc, lrc));
245	return lrc;
246	}
247
248	/**
249	* Implements the ethernet interface backend initialization for lwIP.
250	*
251	* @returns lwIP error code
252	* @param netif Interface to configure.
253	*/
254	static err_t devINIPInterface(struct netif *netif)
255	{
256	LogFlow(("%s: netif=%p\n", __FUNCTION__, netif));
257	Assert(g_pDevINIPData != NULL);
258	netif->state = g_pDevINIPData;
259	netif->hwaddr_len = sizeof(g_pDevINIPData->MAC);
260	memcpy(netif->hwaddr, &g_pDevINIPData->MAC, sizeof(g_pDevINIPData->MAC));
261	netif->mtu = DEVINIP_MAX_FRAME;
262	netif->flags = NETIF_FLAG_BROADCAST;
263	netif->flags \|= NETIF_FLAG_ETHARP;
264	netif->flags \|= NETIF_FLAG_ETHERNET;
265
266	#if LWIP_IPV6
267	netif_create_ip6_linklocal_address(netif, 0);
268	netif_ip6_addr_set_state(netif, 0, IP6_ADDR_VALID);
269	netif->output_ip6 = ethip6_output;
270	netif->ip6_autoconfig_enabled=1;
271	LogFunc(("netif: ipv6:%RTnaipv6\n", &netif->ip6_addr[0].addr[0]));
272	#endif
273
274	netif->output = lwip_etharp_output;
275	netif->linkoutput = devINIPOutputRaw;
276
277	LogFlow(("%s: success\n", __FUNCTION__));
278	return ERR_OK;
279	}
280
281	/**
282	* Parses CFGM parameters related to network connection
283	*/
284	static DECLCALLBACK(int) devINIPNetworkConfiguration(PPDMDEVINS pDevIns, PDEVINTNETIP pThis, PCFGMNODE pCfg)
285	{
286	int rc = VINF_SUCCESS;
287	rc = CFGMR3QueryStringAlloc(pCfg, "IP", &pThis->pszIP);
288	if (RT_FAILURE(rc))
289	{
290	PDMDEV_SET_ERROR(pDevIns, rc,
291	N_("Configuration error: Failed to get the \"IP\" value"));
292	/* @todo: perhaps we should panic if IPv4 address isn't specify, with assumtion that
293	* ISCSI target specified in IPv6 form.
294	*/
295	return rc;
296	}
297
298	rc = CFGMR3QueryStringAlloc(pCfg, "Netmask", &pThis->pszNetmask);
299	if (RT_FAILURE(rc))
300	{
301	PDMDEV_SET_ERROR(pDevIns, rc,
302	N_("Configuration error: Failed to get the \"Netmask\" value"));
303	return rc;
304	}
305	rc = CFGMR3QueryStringAlloc(pCfg, "Gateway", &pThis->pszGateway);
306	if ( RT_FAILURE(rc)
307	&& rc != VERR_CFGM_VALUE_NOT_FOUND)
308	{
309	PDMDEV_SET_ERROR(pDevIns, rc,
310	N_("Configuration error: Failed to get the \"Gateway\" value"));
311	return rc;
312	}
313	return VINF_SUCCESS;
314	}
315
316	/**
317	* Wait until data can be received.
318	*
319	* @returns VBox status code. VINF_SUCCESS means there is at least one receive descriptor available.
320	* @param pInterface PDM network port interface pointer.
321	* @param cMillies Number of milliseconds to wait. 0 means return immediately.
322	*/
323	static DECLCALLBACK(int) devINIPNetworkDown_WaitInputAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies)
324	{
325	RT_NOREF(pInterface, cMillies);
326	LogFlow(("%s: pInterface=%p\n", __FUNCTION__, pInterface));
327	LogFlow(("%s: return VINF_SUCCESS\n", __FUNCTION__));
328	return VINF_SUCCESS;
329	}
330
331	/**
332	* Receive data and pass it to lwIP for processing.
333	*
334	* @returns VBox status code
335	* @param pInterface PDM network port interface pointer.
336	* @param pvBuf Pointer to frame data.
337	* @param cb Frame size.
338	*/
339	static DECLCALLBACK(int) devINIPNetworkDown_Input(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb)
340	{
341	RT_NOREF(pInterface);
342	const uint8_t pbBuf = (const uint8_t )pvBuf;
343	size_t len = cb;
344	const struct eth_hdr *ethhdr;
345	struct pbuf p, q;
346
347	LogFlow(("%s: pInterface=%p pvBuf=%p cb=%lu\n", __FUNCTION__, pInterface, pvBuf, cb));
348	Assert(g_pDevINIPData);
349	Assert(g_pDevINIPData->pDrv);
350
351	/* Silently ignore packets being received while lwIP isn't set up. */
352	if (!g_pDevINIPData)
353	{
354	LogFlow(("%s: return %Rrc (no global)\n", __FUNCTION__, VINF_SUCCESS));
355	return VINF_SUCCESS;
356	}
357
358	#if ETH_PAD_SIZE
359	len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
360	#endif
361
362	/* We allocate a pbuf chain of pbufs from the pool. */
363	Assert((u16_t)len == len);
364	p = lwip_pbuf_alloc(PBUF_RAW, (u16_t)len, PBUF_POOL);
365	if (p != NULL)
366	{
367	#if ETH_PAD_SIZE
368	lwip_pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
369	#endif
370
371	for (q = p; q != NULL; q = q->next)
372	{
373	/* Fill the buffers, and clean out unused buffer space. */
374	memcpy(q->payload, pbBuf, RT_MIN(cb, q->len));
375	pbBuf += RT_MIN(cb, q->len);
376	if (q->len > cb)
377	memset(((uint8_t *)q->payload) + cb, '\0', q->len - cb);
378	cb -= RT_MIN(cb, q->len);
379	}
380
381	ethhdr = (const struct eth_hdr *)p->payload;
382	struct netif *iface = &g_pDevINIPData->IntNetIF;
383
384	/* We've setup flags NETIF_FLAG_ETHARP and NETIF_FLAG_ETHERNET
385	so this should be thread-safe. */
386	tcpip_input(p,iface);
387	}
388
389	LogFlow(("%s: return %Rrc\n", __FUNCTION__, VINF_SUCCESS));
390	return VINF_SUCCESS;
391	}
392
393	/**
394	* @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending}
395	*/
396	static DECLCALLBACK(void) devINIPNetworkDown_XmitPending(PPDMINETWORKDOWN pInterface)
397	{
398	NOREF(pInterface);
399	}
400
401
402	/**
403	* Signals the end of lwIP TCPIP initialization.
404	*
405	* @note: TCPIP thread, corresponding EMT waiting on semaphore.
406	* @param arg opaque argument, here the pointer to the PDEVINTNETIP.
407	*/
408	static DECLCALLBACK(void) devINIPTcpipInitDone(void *arg)
409	{
410	PDEVINTNETIP pThis = (PDEVINTNETIP)arg;
411	AssertPtrReturnVoid(arg);
412
413	pThis->rcInitialization = VINF_SUCCESS;
414	{
415	struct netif *ret;
416	struct ip_addr ipaddr, netmask, gw;
417	struct in_addr ip;
418
419	if (!inet_aton(pThis->pszIP, &ip))
420	{
421	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
422	PDMDEV_SET_ERROR(pThis->pDevIns,
423	pThis->rcInitialization,
424	N_("Configuration error: Invalid \"IP\" value"));
425	goto done;
426	}
427	memcpy(&ipaddr, &ip, sizeof(ipaddr));
428
429	if (!inet_aton(pThis->pszNetmask, &ip))
430	{
431	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
432	PDMDEV_SET_ERROR(pThis->pDevIns,
433	pThis->rcInitialization,
434	N_("Configuration error: Invalid \"Netmask\" value"));
435	goto done;
436	}
437	memcpy(&netmask, &ip, sizeof(netmask));
438
439	if (pThis->pszGateway)
440	{
441	if (!inet_aton(pThis->pszGateway, &ip))
442	{
443	pThis->rcInitialization = VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
444	PDMDEV_SET_ERROR(pThis->pDevIns,
445	pThis->rcInitialization,
446	N_("Configuration error: Invalid \"Gateway\" value"));
447	goto done;
448	}
449
450	}
451	else
452	{
453	inet_aton(pThis->pszIP, &ip);
454	}
455	memcpy(&gw, &ip, sizeof(gw));
456
457	pThis->IntNetIF.name[0] = 'I';
458	pThis->IntNetIF.name[1] = 'N';
459
460	ret = netif_add(&pThis->IntNetIF, &ipaddr, &netmask, &gw, NULL,
461	devINIPInterface, lwip_tcpip_input);
462
463	if (!ret)
464	{
465
466	pThis->rcInitialization = VERR_NET_NO_NETWORK;
467	PDMDEV_SET_ERROR(pThis->pDevIns,
468	pThis->rcInitialization,
469	N_("netif_add failed"));
470	goto done;
471	}
472
473	lwip_netif_set_default(&pThis->IntNetIF);
474	lwip_netif_set_up(&pThis->IntNetIF);
475	}
476	done:
477	return;
478	}
479
480
481	/**
482	* This callback is for finitializing our activity on TCPIP thread.
483	* XXX: We do it only for new LWIP, old LWIP will stay broken for now.
484	*/
485	static DECLCALLBACK(void) devINIPTcpipFiniDone(void *arg)
486	{
487	PDEVINTNETIP pThis = (PDEVINTNETIP)arg;
488	AssertPtrReturnVoid(arg);
489
490	netif_set_link_down(&pThis->IntNetIF);
491	netif_set_down(&pThis->IntNetIF);
492	netif_remove(&pThis->IntNetIF);
493	}
494
495
496	/**
497	* Gets the current Media Access Control (MAC) address.
498	*
499	* @returns VBox status code.
500	* @param pInterface Pointer to the interface structure containing the called function pointer.
501	* @param pMac Where to store the MAC address.
502	* @thread EMT
503	*/
504	static DECLCALLBACK(int) devINIPGetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
505	{
506	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
507	memcpy(pMac, pThis->MAC.au8, sizeof(RTMAC));
508	return VINF_SUCCESS;
509	}
510
511	/**
512	* Gets the new link state.
513	*
514	* @returns The current link state.
515	* @param pInterface Pointer to the interface structure containing the called function pointer.
516	* @thread EMT
517	*/
518	static DECLCALLBACK(PDMNETWORKLINKSTATE) devINIPGetLinkState(PPDMINETWORKCONFIG pInterface)
519	{
520	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
521	if (pThis->fLnkUp)
522	return PDMNETWORKLINKSTATE_UP;
523	return PDMNETWORKLINKSTATE_DOWN;
524	}
525
526
527	/**
528	* Sets the new link state.
529	*
530	* @returns VBox status code.
531	* @param pInterface Pointer to the interface structure containing the called function pointer.
532	* @param enmState The new link state
533	*/
534	static DECLCALLBACK(int) devINIPSetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
535	{
536	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, INetworkConfig);
537	bool fNewUp = enmState == PDMNETWORKLINKSTATE_UP;
538
539	if (fNewUp != pThis->fLnkUp)
540	{
541	if (fNewUp)
542	{
543	LogFlowFunc(("Link is up\n"));
544	pThis->fLnkUp = true;
545	}
546	else
547	{
548	LogFlowFunc(("Link is down\n"));
549	pThis->fLnkUp = false;
550	}
551	if (pThis->pDrv)
552	pThis->pDrv->pfnNotifyLinkChanged(pThis->pDrv, enmState);
553	}
554	return VINF_SUCCESS;
555	}
556
557	/* -=-=-=-=- PDMIBASE -=-=-=-=- */
558
559	/**
560	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
561	*/
562	static DECLCALLBACK(void *) devINIPQueryInterface(PPDMIBASE pInterface,
563	const char *pszIID)
564	{
565	PDEVINTNETIP pThis = RT_FROM_MEMBER(pInterface, DEVINTNETIP, IBase);
566	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
567	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThis->INetworkDown);
568	PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThis->INetworkConfig);
569	return NULL;
570	}
571
572	/* -=-=-=-=- PDMDEVREG -=-=-=-=- */
573
574	/**
575	* Destruct a device instance.
576	*
577	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
578	* resources can be freed correctly.
579	*
580	* @returns VBox status code.
581	* @param pDevIns The device instance data.
582	*/
583	static DECLCALLBACK(int) devINIPDestruct(PPDMDEVINS pDevIns)
584	{
585	PDEVINTNETIP pThis = PDMINS_2_DATA(pDevIns, PDEVINTNETIP);
586
587	LogFlow(("%s: pDevIns=%p\n", __FUNCTION__, pDevIns));
588	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
589
590	if (g_pDevINIPData != NULL)
591	vboxLwipCoreFinalize(devINIPTcpipFiniDone, pThis);
592
593	MMR3HeapFree(pThis->pszIP);
594	pThis->pszIP = NULL;
595	MMR3HeapFree(pThis->pszNetmask);
596	pThis->pszNetmask = NULL;
597	MMR3HeapFree(pThis->pszGateway);
598	pThis->pszGateway = NULL;
599
600	LogFlow(("%s: success\n", __FUNCTION__));
601	return VINF_SUCCESS;
602	}
603
604
605	/**
606	* @interface_method_impl{PDMDEVREG,pfnConstruct}
607	*/
608	static DECLCALLBACK(int) devINIPConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
609	{
610	RT_NOREF(iInstance);
611	PDEVINTNETIP pThis = PDMINS_2_DATA(pDevIns, PDEVINTNETIP);
612
613	LogFlow(("%s: pDevIns=%p iInstance=%d pCfg=%p\n", __FUNCTION__,
614	pDevIns, iInstance, pCfg));
615
616	Assert(iInstance == 0);
617	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
618
619	/*
620	* Validate the config.
621	*/
622	if (!CFGMR3AreValuesValid(pCfg, "MAC\0IP\0"
623	"IPv6\0"
624	"Netmask\0Gateway\0"))
625	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
626	N_("Unknown Internal Networking IP configuration option"));
627
628	/*
629	* Init the static parts.
630	*/
631	pThis->pszIP = NULL;
632	pThis->pszNetmask = NULL;
633	pThis->pszGateway = NULL;
634	/* Pointer to device instance */
635	pThis->pDevIns = pDevIns;
636	/* IBase */
637	pThis->IBase.pfnQueryInterface = devINIPQueryInterface;
638	/* INetworkDown */
639	pThis->INetworkDown.pfnWaitReceiveAvail = devINIPNetworkDown_WaitInputAvail;
640	pThis->INetworkDown.pfnReceive = devINIPNetworkDown_Input;
641	pThis->INetworkDown.pfnXmitPending = devINIPNetworkDown_XmitPending;
642	/* INetworkConfig */
643	pThis->INetworkConfig.pfnGetMac = devINIPGetMac;
644	pThis->INetworkConfig.pfnGetLinkState = devINIPGetLinkState;
645	pThis->INetworkConfig.pfnSetLinkState = devINIPSetLinkState;
646
647	/*
648	* Get the configuration settings.
649	*/
650	int rc = CFGMR3QueryBytes(pCfg, "MAC", &pThis->MAC, sizeof(pThis->MAC));
651	if (rc == VERR_CFGM_NOT_BYTES)
652	{
653	char szMAC[64];
654	rc = CFGMR3QueryString(pCfg, "MAC", &szMAC[0], sizeof(szMAC));
655	if (RT_SUCCESS(rc))
656	{
657	char *macStr = &szMAC[0];
658	char pMac = (char )&pThis->MAC;
659	for (uint32_t i = 0; i < 6; i++)
660	{
661	if ( !macStr \|\| !(macStr + 1)
662	\|\| macStr == ':' \|\| (macStr + 1) == ':')
663	return PDMDEV_SET_ERROR(pDevIns,
664	VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
665	N_("Configuration error: Invalid \"MAC\" value"));
666	char c1 = *macStr++ - '0';
667	if (c1 > 9)
668	c1 -= 7;
669	char c2 = *macStr++ - '0';
670	if (c2 > 9)
671	c2 -= 7;
672	*pMac++ = ((c1 & 0x0f) << 4) \| (c2 & 0x0f);
673	if (i != 5 && *macStr == ':')
674	macStr++;
675	}
676	}
677	}
678	if (RT_FAILURE(rc))
679	return PDMDEV_SET_ERROR(pDevIns, rc,
680	N_("Configuration error: Failed to get the \"MAC\" value"));
681	rc = devINIPNetworkConfiguration(pDevIns, pThis, pCfg);
682	AssertLogRelRCReturn(rc, rc);
683
684	/*
685	* Attach driver and query the network connector interface.
686	*/
687	rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThis->IBase, &pThis->pDrvBase, "Network Port");
688	if (RT_FAILURE(rc))
689	{
690	pThis->pDrvBase = NULL;
691	pThis->pDrv = NULL;
692	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Error attaching device below us"));
693	}
694	pThis->pDrv = PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMINETWORKUP);
695	AssertMsgReturn(pThis->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"), VERR_PDM_MISSING_INTERFACE_BELOW);
696
697
698	/*
699	* Set up global pointer to interface data.
700	*/
701	g_pDevINIPData = pThis;
702
703
704	/* link hack */
705	pThis->pLinkHack = g_pDevINILinkHack;
706
707	/*
708	* Initialize lwIP.
709	*/
710	vboxLwipCoreInitialize(devINIPTcpipInitDone, pThis);
711
712	/* this rc could be updated in devINIPTcpInitDone thread */
713	AssertRCReturn(pThis->rcInitialization, pThis->rcInitialization);
714
715
716	LogFlow(("%s: return %Rrc\n", __FUNCTION__, rc));
717	return rc;
718	}
719
720
721	/**
722	* Query whether lwIP is initialized or not. Since there is only a single
723	* instance of this device ever for a VM, it can be a global function.
724	*
725	* @returns True if lwIP is initialized.
726	*/
727	bool DevINIPConfigured(void)
728	{
729	return g_pDevINIPData != NULL;
730	}
731
732
733	/**
734	* Internal network IP stack device registration record.
735	*/
736	const PDMDEVREG g_DeviceINIP =
737	{
738	/* u32Version */
739	PDM_DEVREG_VERSION,
740	/* szName */
741	"IntNetIP",
742	/* szRCMod/szR0Mod */
743	"",
744	"",
745	/* pszDescription */
746	"Internal Network IP stack device",
747	/* fFlags */
748	PDM_DEVREG_FLAGS_DEFAULT_BITS,
749	/* fClass. As this is used by the storage devices, it must come earlier. */
750	PDM_DEVREG_CLASS_VMM_DEV,
751	/* cMaxInstances */
752	1,
753	/* cbInstance */
754	sizeof(DEVINTNETIP),
755	/* pfnConstruct */
756	devINIPConstruct,
757	/* pfnDestruct */
758	devINIPDestruct,
759	/* pfnRelocate */
760	NULL,
761	/* pfnMemSetup */
762	NULL,
763	/* pfnPowerOn */
764	NULL,
765	/* pfnReset */
766	NULL,
767	/* pfnSuspend */
768	NULL,
769	/* pfnResume */
770	NULL,
771	/* pfnAttach */
772	NULL,
773	/* pfnDetach */
774	NULL,
775	/* pfnQueryInterface */
776	NULL,
777	/* pfnInitComplete */
778	NULL,
779	/* pfnPowerOff */
780	NULL,
781	/* pfnSoftReset */
782	NULL,
783	/* u32VersionEnd */
784	PDM_DEVREG_VERSION
785	};

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source: vbox/trunk/src/VBox/Devices/Network/DevINIP.cpp@ 63185

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