VirtualBox

source: vbox/trunk/src/VBox/HostDrivers/Support/freebsd/SUPLib-freebsd.cpp@ 8760

Last change on this file since 8760 was 8155, checked in by vboxsync, 17 years ago

The Big Sun Rebranding Header Change

File size: 4.9 KB
Line 
1/** @file
2 * SUPLib - FreeBSD Hosts,
3 */
4
5/*
6 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
7 *
8 * This file is part of VirtualBox Open Source Edition (OSE), as
9 * available from http://www.virtualbox.org. This file is free software;
10 * you can redistribute it and/or modify it under the terms of the GNU
11 * General Public License (GPL) as published by the Free Software
12 * Foundation, in version 2 as it comes in the "COPYING" file of the
13 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15 *
16 * The contents of this file may alternatively be used under the terms
17 * of the Common Development and Distribution License Version 1.0
18 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19 * VirtualBox OSE distribution, in which case the provisions of the
20 * CDDL are applicable instead of those of the GPL.
21 *
22 * You may elect to license modified versions of this file under the
23 * terms and conditions of either the GPL or the CDDL or both.
24 *
25 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
26 * Clara, CA 95054 USA or visit http://www.sun.com if you need
27 * additional information or have any questions.
28 */
29
30
31/*******************************************************************************
32* Header Files *
33*******************************************************************************/
34#define LOG_GROUP LOG_GROUP_SUP
35#include <VBox/types.h>
36#include <VBox/sup.h>
37#include <VBox/param.h>
38#include <VBox/err.h>
39#include <VBox/log.h>
40#include <iprt/path.h>
41#include <iprt/assert.h>
42#include <iprt/mem.h>
43#include <iprt/err.h>
44#include <iprt/string.h>
45#include "SUPLibInternal.h"
46#include "SUPDRVIOC.h"
47
48#include <sys/fcntl.h>
49#include <sys/ioctl.h>
50#include <errno.h>
51#include <unistd.h>
52#include <stdlib.h>
53
54
55/*******************************************************************************
56* Defined Constants And Macros *
57*******************************************************************************/
58/** FreeBSD base device name. */
59#define DEVICE_NAME "/dev/vboxdrv"
60
61
62/*******************************************************************************
63* Global Variables *
64*******************************************************************************/
65/** Handle to the open device. */
66static int g_hDevice = -1;
67
68
69int suplibOsInit(size_t cbReserve)
70{
71 /*
72 * Check if already initialized.
73 */
74 if (g_hDevice >= 0)
75 return VINF_SUCCESS;
76
77 /*
78 * Try open the BSD device.
79 */
80 char szDevice[sizeof(DEVICE_NAME) + 16];
81 for (unsigned iUnit = 0; iUnit < 1024; iUnit++)
82 {
83 errno = 0;
84 RTStrPrintf(szDevice, sizeof(szDevice), DEVICE_NAME "%d", iUnit);
85 g_hDevice = open(szDevice, O_RDWR, 0);
86 if (g_hDevice >= 0 || errno != EBUSY)
87 break;
88 }
89 if (g_hDevice < 0)
90 {
91 int rc;
92 switch (errno)
93 {
94 case ENODEV: rc = VERR_VM_DRIVER_LOAD_ERROR; break;
95 case EPERM:
96 case EACCES: rc = VERR_VM_DRIVER_NOT_ACCESSIBLE; break;
97 case ENOENT: rc = VERR_VM_DRIVER_NOT_INSTALLED; break;
98 default: rc = VERR_VM_DRIVER_OPEN_ERROR; break;
99 }
100 LogRel(("Failed to open \"%s\", errno=%d, rc=%Vrc\n", szDevice, errno, rc));
101 return rc;
102 }
103
104 /*
105 * Mark the file handle close on exec.
106 */
107 if (fcntl(g_hDevice, F_SETFD, FD_CLOEXEC) != 0)
108 {
109 int rc = errno;
110 LogRel(("suplibOSInit: setting FD_CLOEXEC failed, errno=%d\n", rc));
111 close(g_hDevice);
112 g_hDevice = -1;
113 return RTErrConvertFromErrno(rc);
114 }
115
116 /*
117 * We're done.
118 */
119 NOREF(cbReserve);
120 return VINF_SUCCESS;
121}
122
123
124int suplibOsTerm(void)
125{
126 /*
127 * Check if we're initited at all.
128 */
129 if (g_hDevice >= 0)
130 {
131 if (close(g_hDevice))
132 AssertFailed();
133 g_hDevice = -1;
134 }
135 return VINF_SUCCESS;
136}
137
138
139int suplibOsInstall(void)
140{
141 return VERR_NOT_IMPLEMENTED;
142}
143
144
145int suplibOsUninstall(void)
146{
147 return VERR_NOT_IMPLEMENTED;
148}
149
150
151int suplibOsIOCtl(uintptr_t uFunction, void *pvReq, size_t cbReq)
152{
153 AssertMsg(g_hDevice != -1, ("SUPLIB not initiated successfully!\n"));
154
155 if (RT_LIKELY(ioctl(g_hDevice, uFunction, pvReq) >= 0))
156 return VINF_SUCCESS;
157 return RTErrConvertFromErrno(errno);
158}
159
160
161int suplibOsIOCtlFast(uintptr_t uFunction)
162{
163 int rc = ioctl(g_hDevice, uFunction, NULL);
164 if (rc == -1)
165 rc = errno;
166 return rc;
167}
168
169
170int suplibOsPageAlloc(size_t cPages, void **ppvPages)
171{
172 *ppvPages = RTMemPageAllocZ(cPages << PAGE_SHIFT);
173 if (*ppvPages)
174 return VINF_SUCCESS;
175 return RTErrConvertFromErrno(errno);
176}
177
178
179int suplibOsPageFree(void *pvPages, size_t /* cPages */)
180{
181 RTMemPageFree(pvPages);
182 return VINF_SUCCESS;
183}
184
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