NetIf-darwin.cpp@ 18732

Last change on this file since 18732 was 18732, checked in by vboxsync, 16 years ago
NetIfList-* -> renamed to NetIf-*, tapinit_solaris.sh removed
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 11.5 KB

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1	/* $Id: NetIf-darwin.cpp 18732 2009-04-06 09:01:53Z 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, PNETIFINFO pInfo)
163	{
164	struct sockaddr sa, addresses[RTAX_MAX];
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	addresses[i] = sa;
173
174	ADVANCE(cp, sa);
175	}
176
177	switch (addresses[RTAX_IFA]->sa_family)
178	{
179	case AF_INET:
180	if (!pInfo->IPAddress.u)
181	{
182	pInfo->IPAddress.u = ((struct sockaddr_in *)addresses[RTAX_IFA])->sin_addr.s_addr;
183	pInfo->IPNetMask.u = ((struct sockaddr_in *)addresses[RTAX_NETMASK])->sin_addr.s_addr;
184	}
185	break;
186	case AF_INET6:
187	if (!pInfo->IPv6Address.s.Lo && !pInfo->IPv6Address.s.Hi)
188	{
189	memcpy(pInfo->IPv6Address.au8,
190	((struct sockaddr_in6 *)addresses[RTAX_IFA])->sin6_addr.__u6_addr.__u6_addr8,
191	sizeof(pInfo->IPv6Address));
192	memcpy(pInfo->IPv6NetMask.au8,
193	((struct sockaddr_in6 *)addresses[RTAX_NETMASK])->sin6_addr.__u6_addr.__u6_addr8,
194	sizeof(pInfo->IPv6NetMask));
195	}
196	break;
197	default:
198	Log(("NetIfList: Unsupported address family: %u\n", sa->sa_family));
199	break;
200	}
201	}
202
203	int NetIfList(std::list <ComObjPtr <HostNetworkInterface> > &list)
204	{
205	int rc = VINF_SUCCESS;
206	size_t cbNeeded;
207	char pBuf, pNext;
208	int aiMib[6];
209
210	aiMib[0] = CTL_NET;
211	aiMib[1] = PF_ROUTE;
212	aiMib[2] = 0;
213	aiMib[3] = 0; /* address family */
214	aiMib[4] = NET_RT_IFLIST;
215	aiMib[5] = 0;
216
217	if (sysctl(aiMib, 6, NULL, &cbNeeded, NULL, 0) < 0)
218	{
219	Log(("NetIfList: Failed to get estimate for list size (errno=%d).\n", errno));
220	return RTErrConvertFromErrno(errno);
221	}
222	if ((pBuf = (char*)malloc(cbNeeded)) == NULL)
223	return VERR_NO_MEMORY;
224	if (sysctl(aiMib, 6, pBuf, &cbNeeded, NULL, 0) < 0)
225	{
226	free(pBuf);
227	Log(("NetIfList: Failed to retrieve interface table (errno=%d).\n", errno));
228	return RTErrConvertFromErrno(errno);
229	}
230
231	int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
232	if (sock < 0)
233	{
234	free(pBuf);
235	Log(("NetIfList: socket() -> %d\n", errno));
236	return RTErrConvertFromErrno(errno);
237	}
238
239	PDARWINETHERNIC pNIC;
240	PDARWINETHERNIC pEtherNICs = DarwinGetEthernetControllers();
241
242	char *pEnd = pBuf + cbNeeded;
243	for (pNext = pBuf; pNext < pEnd;)
244	{
245	struct if_msghdr pIfMsg = (struct if_msghdr )pNext;
246
247	if (pIfMsg->ifm_type != RTM_IFINFO)
248	{
249	Log(("NetIfList: Got message %u while expecting %u.\n",
250	pIfMsg->ifm_type, RTM_IFINFO));
251	rc = VERR_INTERNAL_ERROR;
252	break;
253	}
254	struct sockaddr_dl pSdl = (struct sockaddr_dl )(pIfMsg + 1);
255
256	size_t cbNameLen = pSdl->sdl_nlen + 1;
257	for (pNIC = pEtherNICs; pNIC; pNIC = pNIC->pNext)
258	if (!strncmp(pSdl->sdl_data, pNIC->szBSDName, pSdl->sdl_len))
259	{
260	cbNameLen = strlen(pEtherNICs->szName) + 1;
261	break;
262	}
263	PNETIFINFO pNew = (PNETIFINFO)RTMemAllocZ(RT_OFFSETOF(NETIFINFO, szName[cbNameLen]));
264	if (!pNew)
265	{
266	rc = VERR_NO_MEMORY;
267	break;
268	}
269	memcpy(pNew->MACAddress.au8, LLADDR(pSdl), sizeof(pNew->MACAddress.au8));
270	pNew->enmMediumType = NETIF_T_ETHERNET;
271	Assert(sizeof(pNew->szShortName) >= cbNameLen);
272	memcpy(pNew->szShortName, pSdl->sdl_data, cbNameLen);
273	/*
274	* If we found the adapter in the list returned by
275	* DarwinGetEthernetControllers() copy the name and UUID from there.
276	*/
277	if (pNIC)
278	{
279	memcpy(pNew->szName, pNIC->szName, cbNameLen);
280	pNew->Uuid = pNIC->Uuid;
281	}
282	else
283	{
284	memcpy(pNew->szName, pSdl->sdl_data, cbNameLen);
285	/* Generate UUID from name and MAC address. */
286	RTUUID uuid;
287	RTUuidClear(&uuid);
288	memcpy(&uuid, pNew->szShortName, RT_MIN(cbNameLen, sizeof(uuid)));
289	uuid.Gen.u8ClockSeqHiAndReserved = (uuid.Gen.u8ClockSeqHiAndReserved & 0x3f) \| 0x80;
290	uuid.Gen.u16TimeHiAndVersion = (uuid.Gen.u16TimeHiAndVersion & 0x0fff) \| 0x4000;
291	memcpy(uuid.Gen.au8Node, pNew->MACAddress.au8, sizeof(uuid.Gen.au8Node));
292	pNew->Uuid = uuid;
293	}
294
295	pNext += pIfMsg->ifm_msglen;
296	while (pNext < pEnd)
297	{
298	struct ifa_msghdr pIfAddrMsg = (struct ifa_msghdr )pNext;
299
300	if (pIfAddrMsg->ifam_type != RTM_NEWADDR)
301	break;
302	extractAddresses(pIfAddrMsg->ifam_addrs, (char )(pIfAddrMsg + 1), pIfAddrMsg->ifam_msglen + (char )pIfAddrMsg, pNew);
303	pNext += pIfAddrMsg->ifam_msglen;
304	}
305
306	if (pSdl->sdl_type == IFT_ETHER)
307	{
308	struct ifreq IfReq;
309	strcpy(IfReq.ifr_name, pNew->szShortName);
310	if (ioctl(sock, SIOCGIFFLAGS, &IfReq) < 0)
311	{
312	Log(("NetIfList: ioctl(SIOCGIFFLAGS) -> %d\n", errno));
313	pNew->enmStatus = NETIF_S_UNKNOWN;
314	}
315	else
316	pNew->enmStatus = (IfReq.ifr_flags & IFF_UP) ? NETIF_S_UP : NETIF_S_DOWN;
317
318	HostNetworkInterfaceType_T enmType;
319	if (strncmp("vboxnet", pNew->szName, 7))
320	enmType = HostNetworkInterfaceType_Bridged;
321	else
322	enmType = HostNetworkInterfaceType_HostOnly;
323
324	ComObjPtr<HostNetworkInterface> IfObj;
325	IfObj.createObject();
326	if (SUCCEEDED(IfObj->init(Bstr(pNew->szName), enmType, pNew)))
327	list.push_back(IfObj);
328	}
329	RTMemFree(pNew);
330	}
331	for (pNIC = pEtherNICs; pNIC;)
332	{
333	void *pvFree = pNIC;
334	pNIC = pNIC->pNext;
335	RTMemFree(pvFree);
336	}
337	close(sock);
338	free(pBuf);
339	return rc;
340	}
341	#endif

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source: vbox/trunk/src/VBox/Main/darwin/NetIf-darwin.cpp@ 18732

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