NetIf-darwin.cpp@ 21961

Last change on this file since 21961 was 21878, checked in by vboxsync, 15 years ago
Main: coding style: have Main obey the standard VirtualBox coding style rules (no functional changes)
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 17.8 KB

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1	/* $Id: NetIf-darwin.cpp 21878 2009-07-30 12:42:08Z vboxsync $ */
2	/** @file
3	* Main - NetIfList, Darwin implementation.
4	*/
5
6	/*
7	* Copyright (C) 2008 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22
23
24	/*******************************************************************************
25	* Header Files *
26	*******************************************************************************/
27	/*
28	* Deal with conflicts first.
29	* PVM - BSD mess, that FreeBSD has correct a long time ago.
30	* iprt/types.h before sys/param.h - prevents UINT32_C and friends.
31	*/
32	#include <iprt/types.h>
33	#include <sys/param.h>
34	#undef PVM
35
36	#define LOG_GROUP LOG_GROUP_MAIN
37
38	#include <iprt/err.h>
39	#include <iprt/alloc.h>
40
41	#include <string.h>
42	#include <sys/socket.h>
43	#include <sys/ioctl.h>
44	#include <sys/sysctl.h>
45	#include <netinet/in.h>
46	#include <net/if.h>
47	#include <net/if_dl.h>
48	#include <net/if_types.h>
49	#include <net/route.h>
50	#include <ifaddrs.h>
51	#include <errno.h>
52	#include <unistd.h>
53	#include <list>
54
55	#include "HostNetworkInterfaceImpl.h"
56	#include "netif.h"
57	#include "iokit.h"
58	#include "Logging.h"
59
60	#if 0
61	int NetIfList(std::list <ComObjPtr<HostNetworkInterface> > &list)
62	{
63	int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
64	if (sock < 0)
65	{
66	Log(("NetIfList: socket() -> %d\n", errno));
67	return NULL;
68	}
69	struct ifaddrs IfAddrs, pAddr;
70	int rc = getifaddrs(&IfAddrs);
71	if (rc)
72	{
73	close(sock);
74	Log(("NetIfList: getifaddrs() -> %d\n", rc));
75	return VERR_INTERNAL_ERROR;
76	}
77
78	PDARWINETHERNIC pEtherNICs = DarwinGetEthernetControllers();
79	while (pEtherNICs)
80	{
81	size_t cbNameLen = strlen(pEtherNICs->szName) + 1;
82	PNETIFINFO pNew = (PNETIFINFO)RTMemAllocZ(RT_OFFSETOF(NETIFINFO, szName[cbNameLen]));
83	pNew->MACAddress = pEtherNICs->Mac;
84	pNew->enmMediumType = NETIF_T_ETHERNET;
85	pNew->Uuid = pEtherNICs->Uuid;
86	Assert(sizeof(pNew->szShortName) > sizeof(pEtherNICs->szBSDName));
87	memcpy(pNew->szShortName, pEtherNICs->szBSDName, sizeof(pEtherNICs->szBSDName));
88	pNew->szShortName[sizeof(pEtherNICs->szBSDName)] = '\0';
89	memcpy(pNew->szName, pEtherNICs->szName, cbNameLen);
90
91	struct ifreq IfReq;
92	strcpy(IfReq.ifr_name, pNew->szShortName);
93	if (ioctl(sock, SIOCGIFFLAGS, &IfReq) < 0)
94	{
95	Log(("NetIfList: ioctl(SIOCGIFFLAGS) -> %d\n", errno));
96	pNew->enmStatus = NETIF_S_UNKNOWN;
97	}
98	else
99	pNew->enmStatus = (IfReq.ifr_flags & IFF_UP) ? NETIF_S_UP : NETIF_S_DOWN;
100
101	for (pAddr = IfAddrs; pAddr != NULL; pAddr = pAddr->ifa_next)
102	{
103	if (strcmp(pNew->szShortName, pAddr->ifa_name))
104	continue;
105
106	struct sockaddr_in pIPAddr, pIPNetMask;
107	struct sockaddr_in6 pIPv6Addr, pIPv6NetMask;
108
109	switch (pAddr->ifa_addr->sa_family)
110	{
111	case AF_INET:
112	if (pNew->IPAddress.u)
113	break;
114	pIPAddr = (struct sockaddr_in *)pAddr->ifa_addr;
115	Assert(sizeof(pNew->IPAddress) == sizeof(pIPAddr->sin_addr));
116	pNew->IPAddress.u = pIPAddr->sin_addr.s_addr;
117	pIPNetMask = (struct sockaddr_in *)pAddr->ifa_netmask;
118	Assert(pIPNetMask->sin_family == AF_INET);
119	Assert(sizeof(pNew->IPNetMask) == sizeof(pIPNetMask->sin_addr));
120	pNew->IPNetMask.u = pIPNetMask->sin_addr.s_addr;
121	break;
122	case AF_INET6:
123	if (pNew->IPv6Address.s.Lo \|\| pNew->IPv6Address.s.Hi)
124	break;
125	pIPv6Addr = (struct sockaddr_in6 *)pAddr->ifa_addr;
126	Assert(sizeof(pNew->IPv6Address) == sizeof(pIPv6Addr->sin6_addr));
127	memcpy(pNew->IPv6Address.au8,
128	pIPv6Addr->sin6_addr.__u6_addr.__u6_addr8,
129	sizeof(pNew->IPv6Address));
130	pIPv6NetMask = (struct sockaddr_in6 *)pAddr->ifa_netmask;
131	Assert(pIPv6NetMask->sin6_family == AF_INET6);
132	Assert(sizeof(pNew->IPv6NetMask) == sizeof(pIPv6NetMask->sin6_addr));
133	memcpy(pNew->IPv6NetMask.au8,
134	pIPv6NetMask->sin6_addr.__u6_addr.__u6_addr8,
135	sizeof(pNew->IPv6NetMask));
136	break;
137	}
138	}
139
140	ComObjPtr<HostNetworkInterface> IfObj;
141	IfObj.createObject();
142	if (SUCCEEDED(IfObj->init(Bstr(pEtherNICs->szName), HostNetworkInterfaceType_Bridged, pNew)))
143	list.push_back(IfObj);
144	RTMemFree(pNew);
145
146	/* next, free current */
147	void *pvFree = pEtherNICs;
148	pEtherNICs = pEtherNICs->pNext;
149	RTMemFree(pvFree);
150	}
151
152	freeifaddrs(IfAddrs);
153	close(sock);
154	return VINF_SUCCESS;
155	}
156	#else
157
158	#define ROUNDUP(a) \
159	((a) > 0 ? (1 + (((a) - 1) \| (sizeof(long) - 1))) : sizeof(long))
160	#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
161
162	void extractAddresses(int iAddrMask, caddr_t cp, caddr_t cplim, struct sockaddr **pAddresses)
163	{
164	struct sockaddr *sa;
165
166	for (int i = 0; i < RTAX_MAX && cp < cplim; i++) {
167	if (!(iAddrMask & (1 << i)))
168	continue;
169
170	sa = (struct sockaddr *)cp;
171
172	pAddresses[i] = sa;
173
174	ADVANCE(cp, sa);
175	}
176	}
177
178	void extractAddressesToNetInfo(int iAddrMask, caddr_t cp, caddr_t cplim, PNETIFINFO pInfo)
179	{
180	struct sockaddr *addresses[RTAX_MAX];
181
182	extractAddresses(iAddrMask, cp, cplim, addresses);
183	switch (addresses[RTAX_IFA]->sa_family)
184	{
185	case AF_INET:
186	if (!pInfo->IPAddress.u)
187	{
188	pInfo->IPAddress.u = ((struct sockaddr_in *)addresses[RTAX_IFA])->sin_addr.s_addr;
189	pInfo->IPNetMask.u = ((struct sockaddr_in *)addresses[RTAX_NETMASK])->sin_addr.s_addr;
190	}
191	break;
192	case AF_INET6:
193	if (!pInfo->IPv6Address.s.Lo && !pInfo->IPv6Address.s.Hi)
194	{
195	memcpy(pInfo->IPv6Address.au8,
196	((struct sockaddr_in6 *)addresses[RTAX_IFA])->sin6_addr.__u6_addr.__u6_addr8,
197	sizeof(pInfo->IPv6Address));
198	memcpy(pInfo->IPv6NetMask.au8,
199	((struct sockaddr_in6 *)addresses[RTAX_NETMASK])->sin6_addr.__u6_addr.__u6_addr8,
200	sizeof(pInfo->IPv6NetMask));
201	}
202	break;
203	default:
204	Log(("NetIfList: Unsupported address family: %u\n", addresses[RTAX_IFA]->sa_family));
205	break;
206	}
207	}
208
209	static int getDefaultIfaceIndex(unsigned short *pu16Index)
210	{
211	size_t cbNeeded;
212	char pBuf, pNext;
213	int aiMib[6];
214	struct sockaddr *addresses[RTAX_MAX];
215
216	aiMib[0] = CTL_NET;
217	aiMib[1] = PF_ROUTE;
218	aiMib[2] = 0;
219	aiMib[3] = PF_INET; /* address family */
220	aiMib[4] = NET_RT_DUMP;
221	aiMib[5] = 0;
222
223	if (sysctl(aiMib, 6, NULL, &cbNeeded, NULL, 0) < 0)
224	{
225	Log(("getDefaultIfaceIndex: Failed to get estimate for list size (errno=%d).\n", errno));
226	return RTErrConvertFromErrno(errno);
227	}
228	if ((pBuf = (char*)malloc(cbNeeded)) == NULL)
229	return VERR_NO_MEMORY;
230	if (sysctl(aiMib, 6, pBuf, &cbNeeded, NULL, 0) < 0)
231	{
232	free(pBuf);
233	Log(("getDefaultIfaceIndex: Failed to retrieve interface table (errno=%d).\n", errno));
234	return RTErrConvertFromErrno(errno);
235	}
236
237	char *pEnd = pBuf + cbNeeded;
238	struct rt_msghdr *pRtMsg;
239	for (pNext = pBuf; pNext < pEnd; pNext += pRtMsg->rtm_msglen)
240	{
241	pRtMsg = (struct rt_msghdr *)pNext;
242
243	if (pRtMsg->rtm_type != RTM_GET)
244	{
245	Log(("getDefaultIfaceIndex: Got message %u while expecting %u.\n",
246	pRtMsg->rtm_type, RTM_GET));
247	//rc = VERR_INTERNAL_ERROR;
248	continue;
249	}
250	if ((char*)(pRtMsg + 1) < pEnd)
251	{
252	/* Extract addresses from the message. */
253	extractAddresses(pRtMsg->rtm_addrs, (char *)(pRtMsg + 1),
254	pRtMsg->rtm_msglen + (char *)pRtMsg, addresses);
255	if ((pRtMsg->rtm_addrs & RTA_DST))
256	{
257	if (addresses[RTAX_DST]->sa_family != AF_INET)
258	continue;
259	struct sockaddr_in addr = (struct sockaddr_in )addresses[RTAX_DST];
260	struct sockaddr_in mask = (struct sockaddr_in )addresses[RTAX_NETMASK];
261	if ((addr->sin_addr.s_addr == INADDR_ANY) &&
262	mask &&
263	(ntohl(mask->sin_addr.s_addr) == 0L \|\|
264	mask->sin_len == 0))
265	{
266	*pu16Index = pRtMsg->rtm_index;
267	free(pBuf);
268	return VINF_SUCCESS;
269	}
270	}
271	}
272	}
273	free(pBuf);
274	return VERR_INTERNAL_ERROR;
275	}
276
277	int NetIfList(std::list <ComObjPtr<HostNetworkInterface> > &list)
278	{
279	int rc = VINF_SUCCESS;
280	size_t cbNeeded;
281	char pBuf, pNext;
282	int aiMib[6];
283	unsigned short u16DefaultIface;
284
285	/* Get the index of the interface associated with default route. */
286	rc = getDefaultIfaceIndex(&u16DefaultIface);
287	if (RT_FAILURE(rc))
288	return rc;
289
290	aiMib[0] = CTL_NET;
291	aiMib[1] = PF_ROUTE;
292	aiMib[2] = 0;
293	aiMib[3] = 0; /* address family */
294	aiMib[4] = NET_RT_IFLIST;
295	aiMib[5] = 0;
296
297	if (sysctl(aiMib, 6, NULL, &cbNeeded, NULL, 0) < 0)
298	{
299	Log(("NetIfList: Failed to get estimate for list size (errno=%d).\n", errno));
300	return RTErrConvertFromErrno(errno);
301	}
302	if ((pBuf = (char*)malloc(cbNeeded)) == NULL)
303	return VERR_NO_MEMORY;
304	if (sysctl(aiMib, 6, pBuf, &cbNeeded, NULL, 0) < 0)
305	{
306	free(pBuf);
307	Log(("NetIfList: Failed to retrieve interface table (errno=%d).\n", errno));
308	return RTErrConvertFromErrno(errno);
309	}
310
311	int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
312	if (sock < 0)
313	{
314	free(pBuf);
315	Log(("NetIfList: socket() -> %d\n", errno));
316	return RTErrConvertFromErrno(errno);
317	}
318
319	PDARWINETHERNIC pNIC;
320	PDARWINETHERNIC pEtherNICs = DarwinGetEthernetControllers();
321
322	char *pEnd = pBuf + cbNeeded;
323	for (pNext = pBuf; pNext < pEnd;)
324	{
325	struct if_msghdr pIfMsg = (struct if_msghdr )pNext;
326
327	if (pIfMsg->ifm_type != RTM_IFINFO)
328	{
329	Log(("NetIfList: Got message %u while expecting %u.\n",
330	pIfMsg->ifm_type, RTM_IFINFO));
331	rc = VERR_INTERNAL_ERROR;
332	break;
333	}
334	struct sockaddr_dl pSdl = (struct sockaddr_dl )(pIfMsg + 1);
335
336	size_t cbNameLen = pSdl->sdl_nlen + 1;
337	for (pNIC = pEtherNICs; pNIC; pNIC = pNIC->pNext)
338	if (!strncmp(pSdl->sdl_data, pNIC->szBSDName, pSdl->sdl_len))
339	{
340	cbNameLen = strlen(pEtherNICs->szName) + 1;
341	break;
342	}
343	PNETIFINFO pNew = (PNETIFINFO)RTMemAllocZ(RT_OFFSETOF(NETIFINFO, szName[cbNameLen]));
344	if (!pNew)
345	{
346	rc = VERR_NO_MEMORY;
347	break;
348	}
349	memcpy(pNew->MACAddress.au8, LLADDR(pSdl), sizeof(pNew->MACAddress.au8));
350	pNew->enmMediumType = NETIF_T_ETHERNET;
351	Assert(sizeof(pNew->szShortName) >= cbNameLen);
352	memcpy(pNew->szShortName, pSdl->sdl_data, cbNameLen);
353	/*
354	* If we found the adapter in the list returned by
355	* DarwinGetEthernetControllers() copy the name and UUID from there.
356	*/
357	if (pNIC)
358	{
359	memcpy(pNew->szName, pNIC->szName, cbNameLen);
360	pNew->Uuid = pNIC->Uuid;
361	}
362	else
363	{
364	memcpy(pNew->szName, pSdl->sdl_data, cbNameLen);
365	/* Generate UUID from name and MAC address. */
366	RTUUID uuid;
367	RTUuidClear(&uuid);
368	memcpy(&uuid, pNew->szShortName, RT_MIN(cbNameLen, sizeof(uuid)));
369	uuid.Gen.u8ClockSeqHiAndReserved = (uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) \| 0x80;
370	uuid.Gen.u16TimeHiAndVersion = (uuid.Gen.u16TimeHiAndVersion & 0x0fff) \| 0x4000;
371	memcpy(uuid.Gen.au8Node, pNew->MACAddress.au8, sizeof(uuid.Gen.au8Node));
372	pNew->Uuid = uuid;
373	}
374
375	pNext += pIfMsg->ifm_msglen;
376	while (pNext < pEnd)
377	{
378	struct ifa_msghdr pIfAddrMsg = (struct ifa_msghdr )pNext;
379
380	if (pIfAddrMsg->ifam_type != RTM_NEWADDR)
381	break;
382	extractAddressesToNetInfo(pIfAddrMsg->ifam_addrs,
383	(char *)(pIfAddrMsg + 1),
384	pIfAddrMsg->ifam_msglen + (char *)pIfAddrMsg,
385	pNew);
386	pNext += pIfAddrMsg->ifam_msglen;
387	}
388
389	if (pSdl->sdl_type == IFT_ETHER)
390	{
391	struct ifreq IfReq;
392	strcpy(IfReq.ifr_name, pNew->szShortName);
393	if (ioctl(sock, SIOCGIFFLAGS, &IfReq) < 0)
394	{
395	Log(("NetIfList: ioctl(SIOCGIFFLAGS) -> %d\n", errno));
396	pNew->enmStatus = NETIF_S_UNKNOWN;
397	}
398	else
399	pNew->enmStatus = (IfReq.ifr_flags & IFF_UP) ? NETIF_S_UP : NETIF_S_DOWN;
400
401	HostNetworkInterfaceType_T enmType;
402	if (strncmp("vboxnet", pNew->szName, 7))
403	enmType = HostNetworkInterfaceType_Bridged;
404	else
405	enmType = HostNetworkInterfaceType_HostOnly;
406
407	ComObjPtr<HostNetworkInterface> IfObj;
408	IfObj.createObject();
409	if (SUCCEEDED(IfObj->init(Bstr(pNew->szName), enmType, pNew)))
410	/* Make sure the default interface gets to the beginning. */
411	if (pIfMsg->ifm_index == u16DefaultIface)
412	list.push_front(IfObj);
413	else
414	list.push_back(IfObj);
415	}
416	RTMemFree(pNew);
417	}
418	for (pNIC = pEtherNICs; pNIC;)
419	{
420	void *pvFree = pNIC;
421	pNIC = pNIC->pNext;
422	RTMemFree(pvFree);
423	}
424	close(sock);
425	free(pBuf);
426	return rc;
427	}
428
429	int NetIfGetConfigByName(PNETIFINFO pInfo)
430	{
431	int rc = VINF_SUCCESS;
432	size_t cbNeeded;
433	char pBuf, pNext;
434	int aiMib[6];
435
436	aiMib[0] = CTL_NET;
437	aiMib[1] = PF_ROUTE;
438	aiMib[2] = 0;
439	aiMib[3] = 0; /* address family */
440	aiMib[4] = NET_RT_IFLIST;
441	aiMib[5] = 0;
442
443	if (sysctl(aiMib, 6, NULL, &cbNeeded, NULL, 0) < 0)
444	{
445	Log(("NetIfList: Failed to get estimate for list size (errno=%d).\n", errno));
446	return RTErrConvertFromErrno(errno);
447	}
448	if ((pBuf = (char*)malloc(cbNeeded)) == NULL)
449	return VERR_NO_MEMORY;
450	if (sysctl(aiMib, 6, pBuf, &cbNeeded, NULL, 0) < 0)
451	{
452	free(pBuf);
453	Log(("NetIfList: Failed to retrieve interface table (errno=%d).\n", errno));
454	return RTErrConvertFromErrno(errno);
455	}
456
457	int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
458	if (sock < 0)
459	{
460	free(pBuf);
461	Log(("NetIfList: socket() -> %d\n", errno));
462	return RTErrConvertFromErrno(errno);
463	}
464
465	char *pEnd = pBuf + cbNeeded;
466	for (pNext = pBuf; pNext < pEnd;)
467	{
468	struct if_msghdr pIfMsg = (struct if_msghdr )pNext;
469
470	if (pIfMsg->ifm_type != RTM_IFINFO)
471	{
472	Log(("NetIfList: Got message %u while expecting %u.\n",
473	pIfMsg->ifm_type, RTM_IFINFO));
474	rc = VERR_INTERNAL_ERROR;
475	break;
476	}
477	struct sockaddr_dl pSdl = (struct sockaddr_dl )(pIfMsg + 1);
478
479	bool fSkip = !!strcmp(pInfo->szShortName, pSdl->sdl_data);
480
481	pNext += pIfMsg->ifm_msglen;
482	while (pNext < pEnd)
483	{
484	struct ifa_msghdr pIfAddrMsg = (struct ifa_msghdr )pNext;
485
486	if (pIfAddrMsg->ifam_type != RTM_NEWADDR)
487	break;
488	if (!fSkip)
489	extractAddressesToNetInfo(pIfAddrMsg->ifam_addrs,
490	(char *)(pIfAddrMsg + 1),
491	pIfAddrMsg->ifam_msglen + (char *)pIfAddrMsg,
492	pInfo);
493	pNext += pIfAddrMsg->ifam_msglen;
494	}
495
496	if (!fSkip && pSdl->sdl_type == IFT_ETHER)
497	{
498	size_t cbNameLen = pSdl->sdl_nlen + 1;
499	memcpy(pInfo->MACAddress.au8, LLADDR(pSdl), sizeof(pInfo->MACAddress.au8));
500	pInfo->enmMediumType = NETIF_T_ETHERNET;
501	/* Generate UUID from name and MAC address. */
502	RTUUID uuid;
503	RTUuidClear(&uuid);
504	memcpy(&uuid, pInfo->szShortName, RT_MIN(cbNameLen, sizeof(uuid)));
505	uuid.Gen.u8ClockSeqHiAndReserved = (uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) \| 0x80;
506	uuid.Gen.u16TimeHiAndVersion = (uuid.Gen.u16TimeHiAndVersion & 0x0fff) \| 0x4000;
507	memcpy(uuid.Gen.au8Node, pInfo->MACAddress.au8, sizeof(uuid.Gen.au8Node));
508	pInfo->Uuid = uuid;
509
510	struct ifreq IfReq;
511	strcpy(IfReq.ifr_name, pInfo->szShortName);
512	if (ioctl(sock, SIOCGIFFLAGS, &IfReq) < 0)
513	{
514	Log(("NetIfList: ioctl(SIOCGIFFLAGS) -> %d\n", errno));
515	pInfo->enmStatus = NETIF_S_UNKNOWN;
516	}
517	else
518	pInfo->enmStatus = (IfReq.ifr_flags & IFF_UP) ? NETIF_S_UP : NETIF_S_DOWN;
519
520	return VINF_SUCCESS;
521	}
522	}
523	close(sock);
524	free(pBuf);
525	return rc;
526	}
527
528	#endif

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source: vbox/trunk/src/VBox/Main/darwin/NetIf-darwin.cpp@ 21961

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