[79444] | 1 | /* $Id: VBoxGuest-linux.c 103788 2024-03-11 17:50:25Z vboxsync $ */
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[1] | 2 | /** @file
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[21069] | 3 | * VBoxGuest - Linux specifics.
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| 4 | *
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| 5 | * Note. Unfortunately, the difference between this and SUPDrv-linux.c is
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| 6 | * a little bit too big to be helpful.
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[1] | 7 | */
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| 8 |
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| 9 | /*
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[98103] | 10 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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[1] | 11 | *
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[96407] | 12 | * This file is part of VirtualBox base platform packages, as
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| 13 | * available from https://www.virtualbox.org.
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[69308] | 14 | *
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[96407] | 15 | * This program is free software; you can redistribute it and/or
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| 16 | * modify it under the terms of the GNU General Public License
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| 17 | * as published by the Free Software Foundation, in version 3 of the
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| 18 | * License.
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| 19 | *
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| 20 | * This program is distributed in the hope that it will be useful, but
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| 21 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 23 | * General Public License for more details.
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| 24 | *
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| 25 | * You should have received a copy of the GNU General Public License
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| 26 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 27 | *
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[69308] | 28 | * The contents of this file may alternatively be used under the terms
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| 29 | * of the Common Development and Distribution License Version 1.0
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[96407] | 30 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 31 | * in the VirtualBox distribution, in which case the provisions of the
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[69308] | 32 | * CDDL are applicable instead of those of the GPL.
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| 33 | *
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| 34 | * You may elect to license modified versions of this file under the
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| 35 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 36 | *
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| 37 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[69308] | 38 | */
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[1] | 39 |
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[57358] | 40 |
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| 41 | /*********************************************************************************************************************************
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| 42 | * Header Files *
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| 43 | *********************************************************************************************************************************/
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[10662] | 44 | #define LOG_GROUP LOG_GROUP_SUP_DRV
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[38975] | 45 |
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[21267] | 46 | #include "the-linux-kernel.h"
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[38975] | 47 |
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[85698] | 48 | #if RTLNX_VER_MIN(2,6,15)
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[38975] | 49 | # define VBOXGUEST_WITH_INPUT_DRIVER
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| 50 | #endif
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| 51 |
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[85698] | 52 | #if RTLNX_VER_MIN(4,15,0)
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[70625] | 53 | # define CONST_4_15 const
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| 54 | #else
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| 55 | # define CONST_4_15
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| 56 | #endif
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| 57 |
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[21069] | 58 | #include "VBoxGuestInternal.h"
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[38975] | 59 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
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| 60 | # include <linux/input.h>
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| 61 | #endif
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[21069] | 62 | #include <linux/miscdevice.h>
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[21095] | 63 | #include <linux/poll.h>
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[85698] | 64 | #if RTLNX_VER_MIN(2,6,28)
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[70874] | 65 | # include <linux/tty.h>
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| 66 | #endif
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[38722] | 67 | #include <VBox/version.h>
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[60584] | 68 | #include "revision-generated.h"
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[1666] | 69 |
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[1] | 70 | #include <iprt/assert.h>
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[21095] | 71 | #include <iprt/asm.h>
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[70874] | 72 | #include <iprt/ctype.h>
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[21095] | 73 | #include <iprt/initterm.h>
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| 74 | #include <iprt/mem.h>
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| 75 | #include <iprt/mp.h>
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| 76 | #include <iprt/process.h>
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[1] | 77 | #include <iprt/spinlock.h>
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| 78 | #include <iprt/semaphore.h>
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[68565] | 79 | #include <iprt/string.h>
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[76419] | 80 | #include <VBox/err.h>
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[10662] | 81 | #include <VBox/log.h>
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[103788] | 82 | #include <VBox/VBoxLnxModInline.h>
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[1] | 83 |
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[13939] | 84 |
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[57358] | 85 | /*********************************************************************************************************************************
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| 86 | * Defined Constants And Macros *
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| 87 | *********************************************************************************************************************************/
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[21069] | 88 | /** The device name. */
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| 89 | #define DEVICE_NAME "vboxguest"
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[58089] | 90 | /** The device name for the device node open to everyone. */
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[21069] | 91 | #define DEVICE_NAME_USER "vboxuser"
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[38721] | 92 | /** The name of the PCI driver */
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| 93 | #define DRIVER_NAME DEVICE_NAME
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[4800] | 94 |
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| 95 |
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[33540] | 96 | /* 2.4.x compatibility macros that may or may not be defined. */
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[21069] | 97 | #ifndef IRQ_RETVAL
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| 98 | # define irqreturn_t void
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| 99 | # define IRQ_RETVAL(n)
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[1] | 100 | #endif
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| 101 |
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[70893] | 102 | /* uidgid.h was introduced in 3.5.0. */
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[85698] | 103 | #if RTLNX_VER_MAX(3,5,0)
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[70893] | 104 | # define kgid_t gid_t
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| 105 | # define kuid_t uid_t
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| 106 | #endif
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[38762] | 107 |
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[97790] | 108 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
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| 109 | /** The name of input pointing device for mouse integration. */
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| 110 | # define VBOX_INPUT_DEVICE_NAME "VirtualBox mouse integration"
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| 111 | #endif
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[70893] | 112 |
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[97790] | 113 |
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[57358] | 114 | /*********************************************************************************************************************************
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| 115 | * Internal Functions *
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| 116 | *********************************************************************************************************************************/
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[58113] | 117 | static void vgdrvLinuxTermPci(struct pci_dev *pPciDev);
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| 118 | static int vgdrvLinuxProbePci(struct pci_dev *pPciDev, const struct pci_device_id *id);
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[77722] | 119 | static int __init vgdrvLinuxModInit(void);
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| 120 | static void __exit vgdrvLinuxModExit(void);
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[58113] | 121 | static int vgdrvLinuxOpen(struct inode *pInode, struct file *pFilp);
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| 122 | static int vgdrvLinuxRelease(struct inode *pInode, struct file *pFilp);
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[21069] | 123 | #ifdef HAVE_UNLOCKED_IOCTL
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[58113] | 124 | static long vgdrvLinuxIOCtl(struct file *pFilp, unsigned int uCmd, unsigned long ulArg);
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[21069] | 125 | #else
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[58113] | 126 | static int vgdrvLinuxIOCtl(struct inode *pInode, struct file *pFilp, unsigned int uCmd, unsigned long ulArg);
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[21069] | 127 | #endif
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[68561] | 128 | static int vgdrvLinuxIOCtlSlow(struct file *pFilp, unsigned int uCmd, unsigned long ulArg, PVBOXGUESTSESSION pSession);
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[58113] | 129 | static int vgdrvLinuxFAsync(int fd, struct file *pFile, int fOn);
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| 130 | static unsigned int vgdrvLinuxPoll(struct file *pFile, poll_table *pPt);
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| 131 | static ssize_t vgdrvLinuxRead(struct file *pFile, char *pbBuf, size_t cbRead, loff_t *poff);
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[3087] | 132 |
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| 133 |
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[57358] | 134 | /*********************************************************************************************************************************
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| 135 | * Global Variables *
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| 136 | *********************************************************************************************************************************/
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[1] | 137 | /**
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| 138 | * Device extention & session data association structure.
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| 139 | */
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[21069] | 140 | static VBOXGUESTDEVEXT g_DevExt;
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| 141 | /** The PCI device. */
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[38721] | 142 | static struct pci_dev *g_pPciDev = NULL;
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[21069] | 143 | /** The base of the I/O port range. */
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| 144 | static RTIOPORT g_IOPortBase;
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| 145 | /** The base of the MMIO range. */
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| 146 | static RTHCPHYS g_MMIOPhysAddr = NIL_RTHCPHYS;
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| 147 | /** The size of the MMIO range as seen by PCI. */
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| 148 | static uint32_t g_cbMMIO;
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| 149 | /** The pointer to the mapping of the MMIO range. */
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| 150 | static void *g_pvMMIOBase;
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[100267] | 151 |
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| 152 | static RTHCPHYS g_MmioReqPhysAddr = NIL_RTHCPHYS;
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| 153 | static uint32_t g_cbMmioReq;
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| 154 | static void *g_pvMmioReq = NULL;
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| 155 |
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[21095] | 156 | /** Wait queue used by polling. */
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| 157 | static wait_queue_head_t g_PollEventQueue;
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| 158 | /** Asynchronous notification stuff. */
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| 159 | static struct fasync_struct *g_pFAsyncQueue;
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[38975] | 160 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
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[97790] | 161 | /** Pre-allocated mouse status VMMDev requests for use in the IRQ handler. */
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| 162 | static VMMDevReqMouseStatusEx *g_pMouseStatusReqEx;
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[38975] | 163 | #endif
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[85698] | 164 | #if RTLNX_VER_MIN(2,6,0)
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[21376] | 165 | /** Whether we've create the logger or not. */
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| 166 | static volatile bool g_fLoggerCreated;
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| 167 | /** Release logger group settings. */
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| 168 | static char g_szLogGrp[128];
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| 169 | /** Release logger flags settings. */
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| 170 | static char g_szLogFlags[128];
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| 171 | /** Release logger destination settings. */
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| 172 | static char g_szLogDst[128];
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[21377] | 173 | # if 0
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[21376] | 174 | /** Debug logger group settings. */
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| 175 | static char g_szDbgLogGrp[128];
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| 176 | /** Debug logger flags settings. */
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| 177 | static char g_szDbgLogFlags[128];
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| 178 | /** Debug logger destination settings. */
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| 179 | static char g_szDbgLogDst[128];
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| 180 | # endif
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| 181 | #endif
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[1] | 182 |
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[38594] | 183 | /** The input device handle */
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[38975] | 184 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
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| 185 | static struct input_dev *g_pInputDevice = NULL;
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[38649] | 186 | #endif
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[38594] | 187 |
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[21069] | 188 | /** The file_operations structure. */
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| 189 | static struct file_operations g_FileOps =
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| 190 | {
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| 191 | owner: THIS_MODULE,
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[58113] | 192 | open: vgdrvLinuxOpen,
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| 193 | release: vgdrvLinuxRelease,
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[5169] | 194 | #ifdef HAVE_UNLOCKED_IOCTL
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[58113] | 195 | unlocked_ioctl: vgdrvLinuxIOCtl,
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[5169] | 196 | #else
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[58113] | 197 | ioctl: vgdrvLinuxIOCtl,
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[5169] | 198 | #endif
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[58113] | 199 | fasync: vgdrvLinuxFAsync,
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| 200 | read: vgdrvLinuxRead,
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| 201 | poll: vgdrvLinuxPoll,
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[21103] | 202 | llseek: no_llseek,
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[21069] | 203 | };
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| 204 |
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| 205 | /** The miscdevice structure. */
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| 206 | static struct miscdevice g_MiscDevice =
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| 207 | {
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| 208 | minor: MISC_DYNAMIC_MINOR,
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| 209 | name: DEVICE_NAME,
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| 210 | fops: &g_FileOps,
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| 211 | };
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[1] | 212 |
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[21069] | 213 | /** The file_operations structure for the user device.
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| 214 | * @remarks For the time being we'll be using the same implementation as
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| 215 | * /dev/vboxguest here. */
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| 216 | static struct file_operations g_FileOpsUser =
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[1] | 217 | {
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[21069] | 218 | owner: THIS_MODULE,
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[58113] | 219 | open: vgdrvLinuxOpen,
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| 220 | release: vgdrvLinuxRelease,
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[5169] | 221 | #ifdef HAVE_UNLOCKED_IOCTL
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[58113] | 222 | unlocked_ioctl: vgdrvLinuxIOCtl,
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[5169] | 223 | #else
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[58113] | 224 | ioctl: vgdrvLinuxIOCtl,
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[5169] | 225 | #endif
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[1] | 226 | };
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| 227 |
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[21069] | 228 | /** The miscdevice structure for the user device. */
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| 229 | static struct miscdevice g_MiscDeviceUser =
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[1] | 230 | {
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[21069] | 231 | minor: MISC_DYNAMIC_MINOR,
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| 232 | name: DEVICE_NAME_USER,
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| 233 | fops: &g_FileOpsUser,
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[1] | 234 | };
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| 235 |
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[9470] | 236 |
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[21069] | 237 | /** PCI hotplug structure. */
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[74965] | 238 | static const struct pci_device_id g_VBoxGuestPciId[] =
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[13939] | 239 | {
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| 240 | {
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[21069] | 241 | vendor: VMMDEV_VENDORID,
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| 242 | device: VMMDEV_DEVICEID
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| 243 | },
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| 244 | {
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| 245 | /* empty entry */
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[13939] | 246 | }
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| 247 | };
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[58113] | 248 |
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[21069] | 249 | MODULE_DEVICE_TABLE(pci, g_VBoxGuestPciId);
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[9470] | 250 |
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[58113] | 251 | /** Structure for registering the PCI driver. */
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| 252 | static struct pci_driver g_PciDriver =
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| 253 | {
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| 254 | name: DRIVER_NAME,
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| 255 | id_table: g_VBoxGuestPciId,
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| 256 | probe: vgdrvLinuxProbePci,
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| 257 | remove: vgdrvLinuxTermPci
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| 258 | };
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| 259 |
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[70033] | 260 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
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| 261 | /** Kernel IDC session to ourselves for use with the mouse events. */
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[38594] | 262 | static PVBOXGUESTSESSION g_pKernelSession = NULL;
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[70033] | 263 | #endif
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[21069] | 264 |
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[58113] | 265 |
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| 266 |
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[21069] | 267 | /**
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| 268 | * Converts a VBox status code to a linux error code.
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| 269 | *
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| 270 | * @returns corresponding negative linux error code.
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| 271 | * @param rc supdrv error code (SUPDRV_ERR_* defines).
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| 272 | */
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[58113] | 273 | static int vgdrvLinuxConvertToNegErrno(int rc)
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[13939] | 274 | {
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[21069] | 275 | if ( rc > -1000
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| 276 | && rc < 1000)
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| 277 | return -RTErrConvertToErrno(rc);
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| 278 | switch (rc)
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[13939] | 279 | {
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[21069] | 280 | case VERR_HGCM_SERVICE_NOT_FOUND: return -ESRCH;
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| 281 | case VINF_HGCM_CLIENT_REJECTED: return 0;
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| 282 | case VERR_HGCM_INVALID_CMD_ADDRESS: return -EFAULT;
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| 283 | case VINF_HGCM_ASYNC_EXECUTE: return 0;
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| 284 | case VERR_HGCM_INTERNAL: return -EPROTO;
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| 285 | case VERR_HGCM_INVALID_CLIENT_ID: return -EINVAL;
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| 286 | case VINF_HGCM_SAVE_STATE: return 0;
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| 287 | /* No reason to return this to a guest */
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| 288 | // case VERR_HGCM_SERVICE_EXISTS: return -EEXIST;
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| 289 | default:
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| 290 | AssertMsgFailed(("Unhandled error code %Rrc\n", rc));
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| 291 | return -EPROTO;
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[13939] | 292 | }
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[3087] | 293 | }
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| 294 |
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| 295 |
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[100267] | 296 | #if defined(RT_ARCH_ARM64) || defined(RT_ARCH_ARM32)
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| 297 | static int vgdrvLinuxMapMmio(struct pci_dev *pPciDev)
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| 298 | {
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| 299 | g_MmioReqPhysAddr = pci_resource_start(pPciDev, 3);
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| 300 | g_cbMmioReq = pci_resource_len(pPciDev, 3);
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| 301 | if (request_mem_region(g_MmioReqPhysAddr, g_cbMmioReq, DEVICE_NAME) != NULL)
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| 302 | {
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| 303 | g_pvMmioReq = ioremap(g_MmioReqPhysAddr, g_cbMmioReq);
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| 304 | if (g_pvMmioReq)
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| 305 | return 0;
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| 306 |
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| 307 | /* failure cleanup path */
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| 308 | LogRel((DEVICE_NAME ": ioremap failed; MMIO Addr=%RHp cb=%#x\n", g_MmioReqPhysAddr, g_cbMmioReq));
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| 309 | release_mem_region(g_MmioReqPhysAddr, g_cbMmioReq);
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| 310 | return -ENOMEM;
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| 311 | }
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| 312 | else
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| 313 | LogRel((DEVICE_NAME ": failed to obtain adapter memory\n"));
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| 314 |
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| 315 | return -EBUSY;
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| 316 | }
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| 317 | #endif
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| 318 |
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| 319 |
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[21069] | 320 | /**
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| 321 | * Does the PCI detection and init of the device.
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| 322 | *
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| 323 | * @returns 0 on success, negated errno on failure.
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| 324 | */
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[58113] | 325 | static int vgdrvLinuxProbePci(struct pci_dev *pPciDev, const struct pci_device_id *id)
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[3087] | 326 | {
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[58113] | 327 | int rc;
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[3087] | 328 |
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[38721] | 329 | NOREF(id);
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| 330 | AssertReturn(!g_pPciDev, -EINVAL);
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| 331 | rc = pci_enable_device(pPciDev);
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| 332 | if (rc >= 0)
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[3087] | 333 | {
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[100267] | 334 | #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
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[38721] | 335 | /* I/O Ports are mandatory, the MMIO bit is not. */
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| 336 | g_IOPortBase = pci_resource_start(pPciDev, 0);
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| 337 | if (g_IOPortBase != 0)
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[100267] | 338 | #elif defined(RT_ARCH_ARM64) || defined(RT_ARCH_ARM32)
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| 339 | rc = vgdrvLinuxMapMmio(pPciDev);
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| 340 | if (!rc)
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| 341 | #else
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| 342 | # error "I have no memory of this arechitecture"
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| 343 | #endif
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[3087] | 344 | {
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[38721] | 345 | /*
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| 346 | * Map the register address space.
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| 347 | */
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| 348 | g_MMIOPhysAddr = pci_resource_start(pPciDev, 1);
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| 349 | g_cbMMIO = pci_resource_len(pPciDev, 1);
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| 350 | if (request_mem_region(g_MMIOPhysAddr, g_cbMMIO, DEVICE_NAME) != NULL)
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[3087] | 351 | {
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[38721] | 352 | g_pvMMIOBase = ioremap(g_MMIOPhysAddr, g_cbMMIO);
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| 353 | if (g_pvMMIOBase)
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[21069] | 354 | {
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[38721] | 355 | /** @todo why aren't we requesting ownership of the I/O ports as well? */
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| 356 | g_pPciDev = pPciDev;
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| 357 | return 0;
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| 358 | }
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[21069] | 359 |
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[38721] | 360 | /* failure cleanup path */
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| 361 | LogRel((DEVICE_NAME ": ioremap failed; MMIO Addr=%RHp cb=%#x\n", g_MMIOPhysAddr, g_cbMMIO));
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| 362 | rc = -ENOMEM;
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| 363 | release_mem_region(g_MMIOPhysAddr, g_cbMMIO);
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[3087] | 364 | }
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[21069] | 365 | else
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| 366 | {
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[38721] | 367 | LogRel((DEVICE_NAME ": failed to obtain adapter memory\n"));
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| 368 | rc = -EBUSY;
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[21069] | 369 | }
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[38721] | 370 | g_MMIOPhysAddr = NIL_RTHCPHYS;
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| 371 | g_cbMMIO = 0;
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| 372 | g_IOPortBase = 0;
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[3087] | 373 | }
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[21069] | 374 | else
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[38721] | 375 | {
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| 376 | LogRel((DEVICE_NAME ": did not find expected hardware resources\n"));
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| 377 | rc = -ENXIO;
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| 378 | }
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| 379 | pci_disable_device(pPciDev);
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[3087] | 380 | }
|
---|
[21069] | 381 | else
|
---|
[38721] | 382 | LogRel((DEVICE_NAME ": could not enable device: %d\n", rc));
|
---|
[21069] | 383 | return rc;
|
---|
[3087] | 384 | }
|
---|
| 385 |
|
---|
| 386 |
|
---|
[21069] | 387 | /**
|
---|
| 388 | * Clean up the usage of the PCI device.
|
---|
| 389 | */
|
---|
[58113] | 390 | static void vgdrvLinuxTermPci(struct pci_dev *pPciDev)
|
---|
[3087] | 391 | {
|
---|
[21069] | 392 | g_pPciDev = NULL;
|
---|
| 393 | if (pPciDev)
|
---|
| 394 | {
|
---|
[100267] | 395 | if (g_pvMmioReq)
|
---|
| 396 | {
|
---|
| 397 | iounmap(g_pvMmioReq);
|
---|
| 398 | g_pvMmioReq = NULL;
|
---|
| 399 |
|
---|
| 400 | release_mem_region(g_MmioReqPhysAddr, g_cbMmioReq);
|
---|
| 401 | g_MmioReqPhysAddr = NIL_RTHCPHYS;
|
---|
| 402 | g_cbMmioReq = 0;
|
---|
| 403 | }
|
---|
| 404 |
|
---|
[21069] | 405 | iounmap(g_pvMMIOBase);
|
---|
| 406 | g_pvMMIOBase = NULL;
|
---|
[3087] | 407 |
|
---|
[21069] | 408 | release_mem_region(g_MMIOPhysAddr, g_cbMMIO);
|
---|
| 409 | g_MMIOPhysAddr = NIL_RTHCPHYS;
|
---|
| 410 | g_cbMMIO = 0;
|
---|
[3087] | 411 |
|
---|
[21069] | 412 | pci_disable_device(pPciDev);
|
---|
[3087] | 413 | }
|
---|
| 414 | }
|
---|
| 415 |
|
---|
[21069] | 416 |
|
---|
| 417 | /**
|
---|
| 418 | * Interrupt service routine.
|
---|
| 419 | *
|
---|
| 420 | * @returns In 2.4 it returns void.
|
---|
| 421 | * In 2.6 we indicate whether we've handled the IRQ or not.
|
---|
| 422 | *
|
---|
| 423 | * @param iIrq The IRQ number.
|
---|
| 424 | * @param pvDevId The device ID, a pointer to g_DevExt.
|
---|
[58089] | 425 | * @param pRegs Register set. Removed in 2.6.19.
|
---|
[21069] | 426 | */
|
---|
[85698] | 427 | #if RTLNX_VER_MIN(2,6,19) && !defined(DOXYGEN_RUNNING)
|
---|
[58113] | 428 | static irqreturn_t vgdrvLinuxISR(int iIrq, void *pvDevId)
|
---|
[21069] | 429 | #else
|
---|
[58113] | 430 | static irqreturn_t vgdrvLinuxISR(int iIrq, void *pvDevId, struct pt_regs *pRegs)
|
---|
[21069] | 431 | #endif
|
---|
[3087] | 432 | {
|
---|
[58053] | 433 | bool fTaken = VGDrvCommonISR(&g_DevExt);
|
---|
[21069] | 434 | return IRQ_RETVAL(fTaken);
|
---|
[3087] | 435 | }
|
---|
| 436 |
|
---|
[7869] | 437 |
|
---|
[21069] | 438 | /**
|
---|
[38768] | 439 | * Registers the ISR and initializes the poll wait queue.
|
---|
[21069] | 440 | */
|
---|
[58113] | 441 | static int __init vgdrvLinuxInitISR(void)
|
---|
[15992] | 442 | {
|
---|
[21069] | 443 | int rc;
|
---|
[15992] | 444 |
|
---|
[21376] | 445 | init_waitqueue_head(&g_PollEventQueue);
|
---|
[21069] | 446 | rc = request_irq(g_pPciDev->irq,
|
---|
[58113] | 447 | vgdrvLinuxISR,
|
---|
[85698] | 448 | #if RTLNX_VER_MIN(2,6,20)
|
---|
[21069] | 449 | IRQF_SHARED,
|
---|
[15992] | 450 | #else
|
---|
[21069] | 451 | SA_SHIRQ,
|
---|
[15992] | 452 | #endif
|
---|
[21069] | 453 | DEVICE_NAME,
|
---|
| 454 | &g_DevExt);
|
---|
| 455 | if (rc)
|
---|
| 456 | {
|
---|
| 457 | LogRel((DEVICE_NAME ": could not request IRQ %d: err=%d\n", g_pPciDev->irq, rc));
|
---|
| 458 | return rc;
|
---|
| 459 | }
|
---|
| 460 | return 0;
|
---|
[15992] | 461 | }
|
---|
| 462 |
|
---|
[21069] | 463 |
|
---|
| 464 | /**
|
---|
| 465 | * Deregisters the ISR.
|
---|
| 466 | */
|
---|
[58113] | 467 | static void vgdrvLinuxTermISR(void)
|
---|
[15992] | 468 | {
|
---|
[21069] | 469 | free_irq(g_pPciDev->irq, &g_DevExt);
|
---|
[15992] | 470 | }
|
---|
| 471 |
|
---|
[98541] | 472 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
|
---|
[21069] | 473 |
|
---|
[97790] | 474 | /**
|
---|
| 475 | * Check if extended mouse pointer state request protocol is currently used by driver.
|
---|
| 476 | *
|
---|
| 477 | * @returns True if extended protocol is used, False otherwise.
|
---|
| 478 | */
|
---|
| 479 | static bool vgdrvLinuxUsesMouseStatusEx(void)
|
---|
| 480 | {
|
---|
| 481 | return g_pMouseStatusReqEx->Core.header.requestType == VMMDevReq_GetMouseStatusEx;
|
---|
| 482 | }
|
---|
[58113] | 483 |
|
---|
| 484 | /**
|
---|
| 485 | * Reports the mouse integration status to the host.
|
---|
| 486 | *
|
---|
| 487 | * Calls the kernel IOCtl to report mouse status to the host on behalf of
|
---|
| 488 | * our kernel session.
|
---|
| 489 | *
|
---|
| 490 | * @param fStatus The mouse status to report.
|
---|
| 491 | */
|
---|
| 492 | static int vgdrvLinuxSetMouseStatus(uint32_t fStatus)
|
---|
[38594] | 493 | {
|
---|
[68550] | 494 | int rc;
|
---|
| 495 | VBGLIOCSETMOUSESTATUS Req;
|
---|
| 496 | VBGLREQHDR_INIT(&Req.Hdr, SET_MOUSE_STATUS);
|
---|
| 497 | Req.u.In.fStatus = fStatus;
|
---|
[68589] | 498 | rc = VGDrvCommonIoCtl(VBGL_IOCTL_SET_MOUSE_STATUS, &g_DevExt, g_pKernelSession, &Req.Hdr, sizeof(Req));
|
---|
[68550] | 499 | if (RT_SUCCESS(rc))
|
---|
| 500 | rc = Req.Hdr.rc;
|
---|
| 501 | return rc;
|
---|
[38594] | 502 | }
|
---|
| 503 |
|
---|
| 504 |
|
---|
[58113] | 505 | /**
|
---|
| 506 | * Called when the input device is first opened.
|
---|
| 507 | *
|
---|
| 508 | * Sets up absolute mouse reporting.
|
---|
[38649] | 509 | */
|
---|
| 510 | static int vboxguestOpenInputDevice(struct input_dev *pDev)
|
---|
| 511 | {
|
---|
[97790] | 512 | int rc = vgdrvLinuxSetMouseStatus( VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE
|
---|
| 513 | | VMMDEV_MOUSE_NEW_PROTOCOL
|
---|
| 514 | | (vgdrvLinuxUsesMouseStatusEx() ? VMMDEV_MOUSE_GUEST_USES_FULL_STATE_PROTOCOL : 0));
|
---|
[58053] | 515 | if (RT_FAILURE(rc))
|
---|
| 516 | return ENODEV;
|
---|
[38649] | 517 | NOREF(pDev);
|
---|
| 518 | return 0;
|
---|
| 519 | }
|
---|
| 520 |
|
---|
| 521 |
|
---|
[58113] | 522 | /**
|
---|
| 523 | * Called if all open handles to the input device are closed.
|
---|
| 524 | *
|
---|
| 525 | * Disables absolute reporting.
|
---|
| 526 | */
|
---|
[38649] | 527 | static void vboxguestCloseInputDevice(struct input_dev *pDev)
|
---|
| 528 | {
|
---|
| 529 | NOREF(pDev);
|
---|
[58113] | 530 | vgdrvLinuxSetMouseStatus(0);
|
---|
[38649] | 531 | }
|
---|
| 532 |
|
---|
| 533 |
|
---|
[1] | 534 | /**
|
---|
[97790] | 535 | * Free corresponding mouse status request structure.
|
---|
| 536 | */
|
---|
| 537 | static void vgdrvLinuxFreeMouseStatusReq(void)
|
---|
| 538 | {
|
---|
| 539 | VbglR0GRFree(&g_pMouseStatusReqEx->Core.header);
|
---|
| 540 | g_pMouseStatusReqEx = NULL;
|
---|
| 541 | }
|
---|
| 542 |
|
---|
[98541] | 543 |
|
---|
[97790] | 544 | /**
|
---|
[38594] | 545 | * Creates the kernel input device.
|
---|
| 546 | */
|
---|
[58113] | 547 | static int __init vgdrvLinuxCreateInputDevice(void)
|
---|
[38594] | 548 | {
|
---|
[97790] | 549 | /* Try to allocate legacy request data first, and check if host supports extended protocol. */
|
---|
| 550 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&g_pMouseStatusReqEx, sizeof(VMMDevReqMouseStatus), VMMDevReq_GetMouseStatus);
|
---|
[58113] | 551 | if (RT_SUCCESS(rc))
|
---|
[38769] | 552 | {
|
---|
[97790] | 553 | /* Check if host supports extended mouse state reporting. */
|
---|
| 554 | g_pMouseStatusReqEx->Core.mouseFeatures = 0;
|
---|
| 555 | rc = VbglR0GRPerform(&g_pMouseStatusReqEx->Core.header);
|
---|
| 556 | if (RT_SUCCESS(rc))
|
---|
| 557 | {
|
---|
[98542] | 558 | if (g_pMouseStatusReqEx->Core.mouseFeatures & VMMDEV_MOUSE_HOST_SUPPORTS_FULL_STATE_PROTOCOL)
|
---|
[97790] | 559 | {
|
---|
| 560 | VMMDevReqMouseStatusEx *pReqEx = NULL;
|
---|
| 561 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReqEx, sizeof(*pReqEx), VMMDevReq_GetMouseStatusEx);
|
---|
| 562 | if (RT_SUCCESS(rc))
|
---|
| 563 | {
|
---|
| 564 | /* De-allocate legacy request data, */
|
---|
| 565 | VbglR0GRFree(&g_pMouseStatusReqEx->Core.header);
|
---|
| 566 | /* ..and switch to extended requests. */
|
---|
| 567 | g_pMouseStatusReqEx = pReqEx;
|
---|
| 568 | LogRel(("Host supports full mouse state reporting, switching to extended mouse integration protocol\n"));
|
---|
| 569 | }
|
---|
| 570 | else
|
---|
| 571 | LogRel(("Host supports full mouse state reporting, but feature cannot be initialized, switching to legacy mouse integration protocol\n"));
|
---|
| 572 | }
|
---|
| 573 | else
|
---|
| 574 | LogRel(("Host does not support full mouse state reporting, switching to legacy mouse integration protocol\n"));
|
---|
| 575 | }
|
---|
| 576 | else
|
---|
| 577 | LogRel(("Unable to get host mouse capabilities, switching to legacy mouse integration protocol\n"));
|
---|
| 578 | }
|
---|
| 579 | else
|
---|
| 580 | rc = -ENOMEM;
|
---|
| 581 |
|
---|
| 582 | if (RT_SUCCESS(rc))
|
---|
| 583 | {
|
---|
[58113] | 584 | g_pInputDevice = input_allocate_device();
|
---|
| 585 | if (g_pInputDevice)
|
---|
| 586 | {
|
---|
[97790] | 587 | g_pInputDevice->name = VBOX_INPUT_DEVICE_NAME;
|
---|
[58113] | 588 | g_pInputDevice->id.bustype = BUS_PCI;
|
---|
| 589 | g_pInputDevice->id.vendor = VMMDEV_VENDORID;
|
---|
| 590 | g_pInputDevice->id.product = VMMDEV_DEVICEID;
|
---|
| 591 | g_pInputDevice->id.version = VBOX_SHORT_VERSION;
|
---|
| 592 | g_pInputDevice->open = vboxguestOpenInputDevice;
|
---|
| 593 | g_pInputDevice->close = vboxguestCloseInputDevice;
|
---|
[85698] | 594 | # if RTLNX_VER_MAX(2,6,22)
|
---|
[58113] | 595 | g_pInputDevice->cdev.dev = &g_pPciDev->dev;
|
---|
[38721] | 596 | # else
|
---|
[58113] | 597 | g_pInputDevice->dev.parent = &g_pPciDev->dev;
|
---|
[38975] | 598 | # endif
|
---|
[97790] | 599 | /* Set up input device capabilities. */
|
---|
| 600 | ASMBitSet(g_pInputDevice->evbit, EV_ABS);
|
---|
[97812] | 601 | ASMBitSet(g_pInputDevice->evbit, EV_KEY);
|
---|
[97790] | 602 | # ifdef EV_SYN
|
---|
| 603 | ASMBitSet(g_pInputDevice->evbit, EV_SYN);
|
---|
| 604 | # endif
|
---|
| 605 | ASMBitSet(g_pInputDevice->absbit, ABS_X);
|
---|
| 606 | ASMBitSet(g_pInputDevice->absbit, ABS_Y);
|
---|
| 607 |
|
---|
| 608 | input_set_abs_params(g_pInputDevice, ABS_X, VMMDEV_MOUSE_RANGE_MIN, VMMDEV_MOUSE_RANGE_MAX, 0, 0);
|
---|
| 609 | input_set_abs_params(g_pInputDevice, ABS_Y, VMMDEV_MOUSE_RANGE_MIN, VMMDEV_MOUSE_RANGE_MAX, 0, 0);
|
---|
| 610 |
|
---|
[97812] | 611 | ASMBitSet(g_pInputDevice->keybit, BTN_MOUSE);
|
---|
| 612 |
|
---|
[97790] | 613 | /* Report extra capabilities to input layer if extended mouse state protocol
|
---|
| 614 | * will be used in communication with host. */
|
---|
| 615 | if (vgdrvLinuxUsesMouseStatusEx())
|
---|
[58113] | 616 | {
|
---|
[97790] | 617 | ASMBitSet(g_pInputDevice->evbit, EV_REL);
|
---|
[58113] | 618 | ASMBitSet(g_pInputDevice->evbit, EV_KEY);
|
---|
[97790] | 619 |
|
---|
| 620 | ASMBitSet(g_pInputDevice->relbit, REL_WHEEL);
|
---|
| 621 | ASMBitSet(g_pInputDevice->relbit, REL_HWHEEL);
|
---|
| 622 |
|
---|
| 623 | ASMBitSet(g_pInputDevice->keybit, BTN_LEFT);
|
---|
| 624 | ASMBitSet(g_pInputDevice->keybit, BTN_RIGHT);
|
---|
| 625 | ASMBitSet(g_pInputDevice->keybit, BTN_MIDDLE);
|
---|
| 626 | ASMBitSet(g_pInputDevice->keybit, BTN_SIDE);
|
---|
| 627 | ASMBitSet(g_pInputDevice->keybit, BTN_EXTRA);
|
---|
[58113] | 628 | }
|
---|
| 629 |
|
---|
[97790] | 630 | rc = input_register_device(g_pInputDevice);
|
---|
| 631 | if (rc == 0)
|
---|
| 632 | return 0;
|
---|
| 633 |
|
---|
[38649] | 634 | input_free_device(g_pInputDevice);
|
---|
| 635 | }
|
---|
[58113] | 636 | else
|
---|
| 637 | rc = -ENOMEM;
|
---|
[97790] | 638 |
|
---|
| 639 | vgdrvLinuxFreeMouseStatusReq();
|
---|
[38649] | 640 | }
|
---|
[97790] | 641 |
|
---|
[58113] | 642 | return rc;
|
---|
[38594] | 643 | }
|
---|
| 644 |
|
---|
| 645 |
|
---|
| 646 | /**
|
---|
| 647 | * Terminates the kernel input device.
|
---|
| 648 | */
|
---|
[58113] | 649 | static void vgdrvLinuxTermInputDevice(void)
|
---|
[38594] | 650 | {
|
---|
[97790] | 651 | /* Notify host that mouse integration is no longer available. */
|
---|
| 652 | vgdrvLinuxSetMouseStatus(0);
|
---|
[58113] | 653 |
|
---|
[97790] | 654 | vgdrvLinuxFreeMouseStatusReq();
|
---|
| 655 |
|
---|
[53484] | 656 | /* See documentation of input_register_device(): input_free_device()
|
---|
| 657 | * should not be called after a device has been registered. */
|
---|
| 658 | input_unregister_device(g_pInputDevice);
|
---|
[38975] | 659 | }
|
---|
[58113] | 660 |
|
---|
[53484] | 661 | #endif /* VBOXGUEST_WITH_INPUT_DRIVER */
|
---|
[38594] | 662 |
|
---|
| 663 | /**
|
---|
[21069] | 664 | * Creates the device nodes.
|
---|
[1] | 665 | *
|
---|
[21069] | 666 | * @returns 0 on success, negated errno on failure.
|
---|
[1] | 667 | */
|
---|
[58113] | 668 | static int __init vgdrvLinuxInitDeviceNodes(void)
|
---|
[1] | 669 | {
|
---|
| 670 | /*
|
---|
[21069] | 671 | * The full feature device node.
|
---|
[1] | 672 | */
|
---|
[58113] | 673 | int rc = misc_register(&g_MiscDevice);
|
---|
| 674 | if (!rc)
|
---|
[3087] | 675 | {
|
---|
[58113] | 676 | /*
|
---|
| 677 | * The device node intended to be accessible by all users.
|
---|
| 678 | */
|
---|
| 679 | rc = misc_register(&g_MiscDeviceUser);
|
---|
| 680 | if (!rc)
|
---|
| 681 | return 0;
|
---|
[21069] | 682 | LogRel((DEVICE_NAME ": misc_register failed for %s (rc=%d)\n", DEVICE_NAME_USER, rc));
|
---|
[52681] | 683 | misc_deregister(&g_MiscDevice);
|
---|
[135] | 684 | }
|
---|
[58113] | 685 | else
|
---|
| 686 | LogRel((DEVICE_NAME ": misc_register failed for %s (rc=%d)\n", DEVICE_NAME, rc));
|
---|
| 687 | return rc;
|
---|
[21069] | 688 | }
|
---|
[135] | 689 |
|
---|
[1] | 690 |
|
---|
[21069] | 691 | /**
|
---|
| 692 | * Deregisters the device nodes.
|
---|
| 693 | */
|
---|
[58113] | 694 | static void vgdrvLinuxTermDeviceNodes(void)
|
---|
[21069] | 695 | {
|
---|
[52681] | 696 | misc_deregister(&g_MiscDevice);
|
---|
[21069] | 697 | misc_deregister(&g_MiscDeviceUser);
|
---|
| 698 | }
|
---|
[1] | 699 |
|
---|
| 700 |
|
---|
[21069] | 701 | /**
|
---|
| 702 | * Initialize module.
|
---|
| 703 | *
|
---|
| 704 | * @returns appropriate status code.
|
---|
| 705 | */
|
---|
[58113] | 706 | static int __init vgdrvLinuxModInit(void)
|
---|
[21069] | 707 | {
|
---|
[21137] | 708 | static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
|
---|
| 709 | PRTLOGGER pRelLogger;
|
---|
| 710 | int rc;
|
---|
[21069] | 711 |
|
---|
[103788] | 712 | /* Check if modue loading was disabled. */
|
---|
| 713 | if (!vbox_mod_should_load())
|
---|
| 714 | return -EINVAL;
|
---|
| 715 |
|
---|
[7869] | 716 | /*
|
---|
[21069] | 717 | * Initialize IPRT first.
|
---|
[7869] | 718 | */
|
---|
[21069] | 719 | rc = RTR0Init(0);
|
---|
| 720 | if (RT_FAILURE(rc))
|
---|
[1] | 721 | {
|
---|
[21095] | 722 | printk(KERN_ERR DEVICE_NAME ": RTR0Init failed, rc=%d.\n", rc);
|
---|
[21069] | 723 | return -EINVAL;
|
---|
[1] | 724 | }
|
---|
| 725 |
|
---|
| 726 | /*
|
---|
[21137] | 727 | * Create the release log.
|
---|
[21267] | 728 | * (We do that here instead of common code because we want to log
|
---|
[21199] | 729 | * early failures using the LogRel macro.)
|
---|
[21137] | 730 | */
|
---|
| 731 | rc = RTLogCreate(&pRelLogger, 0 /* fFlags */, "all",
|
---|
| 732 | "VBOX_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups,
|
---|
[36408] | 733 | RTLOGDEST_STDOUT | RTLOGDEST_DEBUGGER | RTLOGDEST_USER, NULL);
|
---|
[21137] | 734 | if (RT_SUCCESS(rc))
|
---|
[21376] | 735 | {
|
---|
[85698] | 736 | #if RTLNX_VER_MIN(2,6,0)
|
---|
[21376] | 737 | RTLogGroupSettings(pRelLogger, g_szLogGrp);
|
---|
| 738 | RTLogFlags(pRelLogger, g_szLogFlags);
|
---|
[21377] | 739 | RTLogDestinations(pRelLogger, g_szLogDst);
|
---|
[21376] | 740 | #endif
|
---|
[21137] | 741 | RTLogRelSetDefaultInstance(pRelLogger);
|
---|
[21376] | 742 | }
|
---|
[85698] | 743 | #if RTLNX_VER_MIN(2,6,0)
|
---|
[21376] | 744 | g_fLoggerCreated = true;
|
---|
| 745 | #endif
|
---|
[21137] | 746 |
|
---|
| 747 | /*
|
---|
[21069] | 748 | * Locate and initialize the PCI device.
|
---|
[1] | 749 | */
|
---|
[38721] | 750 | rc = pci_register_driver(&g_PciDriver);
|
---|
| 751 | if (rc >= 0 && g_pPciDev)
|
---|
[1] | 752 | {
|
---|
| 753 | /*
|
---|
[75584] | 754 | * Call the common device extension initializer.
|
---|
[1] | 755 | */
|
---|
[100268] | 756 | #if RTLNX_VER_MIN(2,6,0) && (defined(RT_ARCH_X86) || defined(RT_ARCH_ARM32))
|
---|
[75584] | 757 | VBOXOSTYPE enmOSType = VBOXOSTYPE_Linux26;
|
---|
[100267] | 758 | #elif RTLNX_VER_MIN(2,6,0) && (defined(RT_ARCH_AMD64) || defined(RT_ARCH_ARM64))
|
---|
[75584] | 759 | VBOXOSTYPE enmOSType = VBOXOSTYPE_Linux26_x64;
|
---|
[85698] | 760 | #elif RTLNX_VER_MIN(2,4,0) && defined(RT_ARCH_X86)
|
---|
[75584] | 761 | VBOXOSTYPE enmOSType = VBOXOSTYPE_Linux24;
|
---|
[85698] | 762 | #elif RTLNX_VER_MIN(2,4,0) && defined(RT_ARCH_AMD64)
|
---|
[75584] | 763 | VBOXOSTYPE enmOSType = VBOXOSTYPE_Linux24_x64;
|
---|
[21069] | 764 | #else
|
---|
| 765 | # warning "huh? which arch + version is this?"
|
---|
[75584] | 766 | VBOXOSTYPE enmOsType = VBOXOSTYPE_Linux;
|
---|
[21069] | 767 | #endif
|
---|
[75584] | 768 | rc = VGDrvCommonInitDevExt(&g_DevExt,
|
---|
| 769 | g_IOPortBase,
|
---|
[100267] | 770 | g_pvMmioReq,
|
---|
[75584] | 771 | g_pvMMIOBase,
|
---|
| 772 | g_cbMMIO,
|
---|
| 773 | enmOSType,
|
---|
| 774 | VMMDEV_EVENT_MOUSE_POSITION_CHANGED);
|
---|
| 775 | if (RT_SUCCESS(rc))
|
---|
| 776 | {
|
---|
| 777 | /*
|
---|
| 778 | * Register the interrupt service routine for it now that g_DevExt can handle IRQs.
|
---|
| 779 | */
|
---|
| 780 | rc = vgdrvLinuxInitISR();
|
---|
| 781 | if (rc >= 0) /** @todo r=bird: status check differs from that inside vgdrvLinuxInitISR. */
|
---|
[9470] | 782 | {
|
---|
[70033] | 783 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
|
---|
[21069] | 784 | /*
|
---|
[38594] | 785 | * Create the kernel session for this driver.
|
---|
[21069] | 786 | */
|
---|
[58053] | 787 | rc = VGDrvCommonCreateKernelSession(&g_DevExt, &g_pKernelSession);
|
---|
[38594] | 788 | if (RT_SUCCESS(rc))
|
---|
[13939] | 789 | {
|
---|
[38594] | 790 | /*
|
---|
| 791 | * Create the kernel input device.
|
---|
| 792 | */
|
---|
[58113] | 793 | rc = vgdrvLinuxCreateInputDevice();
|
---|
[38594] | 794 | if (rc >= 0)
|
---|
| 795 | {
|
---|
[38975] | 796 | #endif
|
---|
[38594] | 797 | /*
|
---|
[70085] | 798 | * Read host configuration.
|
---|
| 799 | */
|
---|
| 800 | VGDrvCommonProcessOptionsFromHost(&g_DevExt);
|
---|
| 801 |
|
---|
| 802 | /*
|
---|
[38594] | 803 | * Finally, create the device nodes.
|
---|
| 804 | */
|
---|
[58113] | 805 | rc = vgdrvLinuxInitDeviceNodes();
|
---|
[38594] | 806 | if (rc >= 0)
|
---|
| 807 | {
|
---|
| 808 | /* some useful information for the user but don't show this on the console */
|
---|
[88569] | 809 | LogRel((DEVICE_NAME ": Successfully loaded version " VBOX_VERSION_STRING " r" __stringify(VBOX_SVN_REV) "\n"));
|
---|
[52681] | 810 | LogRel((DEVICE_NAME ": misc device minor %d, IRQ %d, I/O port %RTiop, MMIO at %RHp (size 0x%x)\n",
|
---|
| 811 | g_MiscDevice.minor, g_pPciDev->irq, g_IOPortBase, g_MMIOPhysAddr, g_cbMMIO));
|
---|
[38594] | 812 | printk(KERN_DEBUG DEVICE_NAME ": Successfully loaded version "
|
---|
[88569] | 813 | VBOX_VERSION_STRING " r" __stringify(VBOX_SVN_REV) " (interface " RT_XSTR(VMMDEV_VERSION) ")\n");
|
---|
[38594] | 814 | return rc;
|
---|
| 815 | }
|
---|
| 816 |
|
---|
| 817 | /* bail out */
|
---|
[38975] | 818 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
|
---|
[58113] | 819 | vgdrvLinuxTermInputDevice();
|
---|
[38594] | 820 | }
|
---|
| 821 | else
|
---|
| 822 | {
|
---|
| 823 | LogRel((DEVICE_NAME ": vboxguestCreateInputDevice failed with rc=%Rrc\n", rc));
|
---|
| 824 | rc = RTErrConvertFromErrno(rc);
|
---|
| 825 | }
|
---|
[70033] | 826 | VGDrvCommonCloseSession(&g_DevExt, g_pKernelSession);
|
---|
[70886] | 827 | }
|
---|
[38975] | 828 | #endif
|
---|
[75584] | 829 | vgdrvLinuxTermISR();
|
---|
[10248] | 830 | }
|
---|
[75584] | 831 | VGDrvCommonDeleteDevExt(&g_DevExt);
|
---|
[1] | 832 | }
|
---|
[75584] | 833 | else
|
---|
| 834 | {
|
---|
| 835 | LogRel((DEVICE_NAME ": VGDrvCommonInitDevExt failed with rc=%Rrc\n", rc));
|
---|
| 836 | rc = RTErrConvertFromErrno(rc);
|
---|
| 837 | }
|
---|
[1] | 838 | }
|
---|
[38721] | 839 | else
|
---|
| 840 | {
|
---|
[39353] | 841 | LogRel((DEVICE_NAME ": PCI device not found, probably running on physical hardware.\n"));
|
---|
| 842 | rc = -ENODEV;
|
---|
[38721] | 843 | }
|
---|
[39353] | 844 | pci_unregister_driver(&g_PciDriver);
|
---|
[21137] | 845 | RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
|
---|
| 846 | RTLogDestroy(RTLogSetDefaultInstance(NULL));
|
---|
[21069] | 847 | RTR0Term();
|
---|
[1] | 848 | return rc;
|
---|
| 849 | }
|
---|
| 850 |
|
---|
| 851 |
|
---|
| 852 | /**
|
---|
| 853 | * Unload the module.
|
---|
| 854 | */
|
---|
[58113] | 855 | static void __exit vgdrvLinuxModExit(void)
|
---|
[1] | 856 | {
|
---|
| 857 | /*
|
---|
[21069] | 858 | * Inverse order of init.
|
---|
[1] | 859 | */
|
---|
[58113] | 860 | vgdrvLinuxTermDeviceNodes();
|
---|
[38975] | 861 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
|
---|
[58113] | 862 | vgdrvLinuxTermInputDevice();
|
---|
[70033] | 863 | VGDrvCommonCloseSession(&g_DevExt, g_pKernelSession);
|
---|
[38975] | 864 | #endif
|
---|
[75584] | 865 | vgdrvLinuxTermISR();
|
---|
[58053] | 866 | VGDrvCommonDeleteDevExt(&g_DevExt);
|
---|
[38721] | 867 | pci_unregister_driver(&g_PciDriver);
|
---|
[21137] | 868 | RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
|
---|
| 869 | RTLogDestroy(RTLogSetDefaultInstance(NULL));
|
---|
[331] | 870 | RTR0Term();
|
---|
[1] | 871 | }
|
---|
| 872 |
|
---|
| 873 |
|
---|
| 874 | /**
|
---|
[70873] | 875 | * Get the process user ID.
|
---|
| 876 | *
|
---|
| 877 | * @returns UID.
|
---|
| 878 | */
|
---|
| 879 | DECLINLINE(RTUID) vgdrvLinuxGetUid(void)
|
---|
| 880 | {
|
---|
[85698] | 881 | #if RTLNX_VER_MIN(2,6,29)
|
---|
| 882 | # if RTLNX_VER_MIN(3,5,0)
|
---|
[70873] | 883 | return from_kuid(current_user_ns(), current->cred->uid);
|
---|
| 884 | # else
|
---|
| 885 | return current->cred->uid;
|
---|
| 886 | # endif
|
---|
| 887 | #else
|
---|
| 888 | return current->uid;
|
---|
| 889 | #endif
|
---|
| 890 | }
|
---|
| 891 |
|
---|
| 892 |
|
---|
| 893 | /**
|
---|
[70874] | 894 | * Checks if the given group number is zero or not.
|
---|
| 895 | *
|
---|
| 896 | * @returns true / false.
|
---|
| 897 | * @param gid The group to check for.
|
---|
| 898 | */
|
---|
| 899 | DECLINLINE(bool) vgdrvLinuxIsGroupZero(kgid_t gid)
|
---|
| 900 | {
|
---|
[85698] | 901 | #if RTLNX_VER_MIN(3,5,0)
|
---|
[70874] | 902 | return from_kgid(current_user_ns(), gid);
|
---|
| 903 | #else
|
---|
| 904 | return gid == 0;
|
---|
| 905 | #endif
|
---|
| 906 | }
|
---|
| 907 |
|
---|
| 908 |
|
---|
| 909 | /**
|
---|
[70873] | 910 | * Searches the effective group and supplementary groups for @a gid.
|
---|
| 911 | *
|
---|
| 912 | * @returns true if member, false if not.
|
---|
| 913 | * @param gid The group to check for.
|
---|
| 914 | */
|
---|
| 915 | DECLINLINE(RTGID) vgdrvLinuxIsInGroupEff(kgid_t gid)
|
---|
| 916 | {
|
---|
| 917 | return in_egroup_p(gid) != 0;
|
---|
| 918 | }
|
---|
| 919 |
|
---|
| 920 |
|
---|
| 921 | /**
|
---|
| 922 | * Check if we can positively or negatively determine that the process is
|
---|
| 923 | * running under a login on the physical machine console.
|
---|
| 924 | *
|
---|
| 925 | * Havne't found a good way to figure this out for graphical sessions, so this
|
---|
| 926 | * is mostly pointless. But let us try do what we can do.
|
---|
| 927 | *
|
---|
| 928 | * @returns VMMDEV_REQUESTOR_CON_XXX.
|
---|
| 929 | */
|
---|
| 930 | static uint32_t vgdrvLinuxRequestorOnConsole(void)
|
---|
| 931 | {
|
---|
| 932 | uint32_t fRet = VMMDEV_REQUESTOR_CON_DONT_KNOW;
|
---|
| 933 |
|
---|
[85698] | 934 | #if RTLNX_VER_MIN(2,6,28) /* First with tty_kref_put(). */
|
---|
[70873] | 935 | /*
|
---|
| 936 | * Check for tty0..63, ASSUMING that these are only used for the physical console.
|
---|
| 937 | */
|
---|
| 938 | struct tty_struct *pTty = get_current_tty();
|
---|
| 939 | if (pTty)
|
---|
| 940 | {
|
---|
[85698] | 941 | # if RTLNX_VER_MIN(4,2,0)
|
---|
[70873] | 942 | const char *pszName = tty_name(pTty);
|
---|
| 943 | # else
|
---|
| 944 | char szBuf[64];
|
---|
[70893] | 945 | const char *pszName = tty_name(pTty, szBuf);
|
---|
[70873] | 946 | # endif
|
---|
| 947 | if ( pszName
|
---|
| 948 | && pszName[0] == 't'
|
---|
| 949 | && pszName[1] == 't'
|
---|
| 950 | && pszName[2] == 'y'
|
---|
| 951 | && RT_C_IS_DIGIT(pszName[3])
|
---|
| 952 | && ( pszName[4] == '\0'
|
---|
| 953 | || ( RT_C_IS_DIGIT(pszName[4])
|
---|
| 954 | && pszName[5] == '\0'
|
---|
[70874] | 955 | && (pszName[3] - '0') * 10 + (pszName[4] - '0') <= 63)) )
|
---|
[70873] | 956 | fRet = VMMDEV_REQUESTOR_CON_YES;
|
---|
| 957 | tty_kref_put(pTty);
|
---|
| 958 | }
|
---|
| 959 | #endif
|
---|
| 960 |
|
---|
| 961 | return fRet;
|
---|
| 962 | }
|
---|
| 963 |
|
---|
| 964 |
|
---|
| 965 | /**
|
---|
[1] | 966 | * Device open. Called on open /dev/vboxdrv
|
---|
| 967 | *
|
---|
| 968 | * @param pInode Pointer to inode info structure.
|
---|
| 969 | * @param pFilp Associated file pointer.
|
---|
| 970 | */
|
---|
[58113] | 971 | static int vgdrvLinuxOpen(struct inode *pInode, struct file *pFilp)
|
---|
[1] | 972 | {
|
---|
| 973 | int rc;
|
---|
[21069] | 974 | PVBOXGUESTSESSION pSession;
|
---|
[70873] | 975 | uint32_t fRequestor;
|
---|
[21069] | 976 | Log((DEVICE_NAME ": pFilp=%p pid=%d/%d %s\n", pFilp, RTProcSelf(), current->pid, current->comm));
|
---|
[1] | 977 |
|
---|
| 978 | /*
|
---|
[70873] | 979 | * Figure out the requestor flags.
|
---|
| 980 | * ASSUMES that the gid of /dev/vboxuser is what we should consider the special vbox group.
|
---|
| 981 | */
|
---|
| 982 | fRequestor = VMMDEV_REQUESTOR_USERMODE | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN;
|
---|
| 983 | if (vgdrvLinuxGetUid() == 0)
|
---|
| 984 | fRequestor |= VMMDEV_REQUESTOR_USR_ROOT;
|
---|
| 985 | else
|
---|
| 986 | fRequestor |= VMMDEV_REQUESTOR_USR_USER;
|
---|
| 987 | if (MINOR(pInode->i_rdev) == g_MiscDeviceUser.minor)
|
---|
| 988 | {
|
---|
[70874] | 989 | fRequestor |= VMMDEV_REQUESTOR_USER_DEVICE;
|
---|
[76446] | 990 | if (!vgdrvLinuxIsGroupZero(pInode->i_gid) && vgdrvLinuxIsInGroupEff(pInode->i_gid))
|
---|
[70873] | 991 | fRequestor |= VMMDEV_REQUESTOR_GRP_VBOX;
|
---|
| 992 | }
|
---|
| 993 | fRequestor |= vgdrvLinuxRequestorOnConsole();
|
---|
| 994 |
|
---|
| 995 | /*
|
---|
[21069] | 996 | * Call common code to create the user session. Associate it with
|
---|
| 997 | * the file so we can access it in the other methods.
|
---|
[11865] | 998 | */
|
---|
[70873] | 999 | rc = VGDrvCommonCreateUserSession(&g_DevExt, fRequestor, &pSession);
|
---|
[21069] | 1000 | if (RT_SUCCESS(rc))
|
---|
| 1001 | pFilp->private_data = pSession;
|
---|
[11865] | 1002 |
|
---|
[58113] | 1003 | Log(("vgdrvLinuxOpen: g_DevExt=%p pSession=%p rc=%d/%d (pid=%d/%d %s)\n",
|
---|
| 1004 | &g_DevExt, pSession, rc, vgdrvLinuxConvertToNegErrno(rc), RTProcSelf(), current->pid, current->comm));
|
---|
| 1005 | return vgdrvLinuxConvertToNegErrno(rc);
|
---|
[1] | 1006 | }
|
---|
| 1007 |
|
---|
| 1008 |
|
---|
| 1009 | /**
|
---|
| 1010 | * Close device.
|
---|
| 1011 | *
|
---|
| 1012 | * @param pInode Pointer to inode info structure.
|
---|
| 1013 | * @param pFilp Associated file pointer.
|
---|
| 1014 | */
|
---|
[58113] | 1015 | static int vgdrvLinuxRelease(struct inode *pInode, struct file *pFilp)
|
---|
[1] | 1016 | {
|
---|
[58113] | 1017 | Log(("vgdrvLinuxRelease: pFilp=%p pSession=%p pid=%d/%d %s\n",
|
---|
[7014] | 1018 | pFilp, pFilp->private_data, RTProcSelf(), current->pid, current->comm));
|
---|
[21069] | 1019 |
|
---|
[85698] | 1020 | #if RTLNX_VER_MAX(2,6,28)
|
---|
[43343] | 1021 | /* This housekeeping was needed in older kernel versions to ensure that
|
---|
| 1022 | * the file pointer didn't get left on the polling queue. */
|
---|
[58113] | 1023 | vgdrvLinuxFAsync(-1, pFilp, 0);
|
---|
[43343] | 1024 | #endif
|
---|
[58053] | 1025 | VGDrvCommonCloseSession(&g_DevExt, (PVBOXGUESTSESSION)pFilp->private_data);
|
---|
[1] | 1026 | pFilp->private_data = NULL;
|
---|
| 1027 | return 0;
|
---|
| 1028 | }
|
---|
| 1029 |
|
---|
| 1030 |
|
---|
| 1031 | /**
|
---|
| 1032 | * Device I/O Control entry point.
|
---|
| 1033 | *
|
---|
| 1034 | * @param pFilp Associated file pointer.
|
---|
[4800] | 1035 | * @param uCmd The function specified to ioctl().
|
---|
| 1036 | * @param ulArg The argument specified to ioctl().
|
---|
[1] | 1037 | */
|
---|
[68561] | 1038 | #if defined(HAVE_UNLOCKED_IOCTL) || defined(DOXYGEN_RUNNING)
|
---|
[58113] | 1039 | static long vgdrvLinuxIOCtl(struct file *pFilp, unsigned int uCmd, unsigned long ulArg)
|
---|
[5169] | 1040 | #else
|
---|
[58113] | 1041 | static int vgdrvLinuxIOCtl(struct inode *pInode, struct file *pFilp, unsigned int uCmd, unsigned long ulArg)
|
---|
[5169] | 1042 | #endif
|
---|
[1] | 1043 | {
|
---|
[68561] | 1044 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pFilp->private_data;
|
---|
| 1045 | int rc;
|
---|
| 1046 | #ifndef HAVE_UNLOCKED_IOCTL
|
---|
| 1047 | unlock_kernel();
|
---|
| 1048 | #endif
|
---|
| 1049 |
|
---|
| 1050 | #if 0 /* no fast I/O controls defined atm. */
|
---|
| 1051 | if (RT_LIKELY( ( uCmd == SUP_IOCTL_FAST_DO_RAW_RUN
|
---|
| 1052 | || uCmd == SUP_IOCTL_FAST_DO_HM_RUN
|
---|
| 1053 | || uCmd == SUP_IOCTL_FAST_DO_NOP)
|
---|
| 1054 | && pSession->fUnrestricted == true))
|
---|
| 1055 | rc = VGDrvCommonIoCtlFast(uCmd, ulArg, &g_DevExt, pSession);
|
---|
| 1056 | else
|
---|
| 1057 | #endif
|
---|
| 1058 | rc = vgdrvLinuxIOCtlSlow(pFilp, uCmd, ulArg, pSession);
|
---|
| 1059 |
|
---|
| 1060 | #ifndef HAVE_UNLOCKED_IOCTL
|
---|
| 1061 | lock_kernel();
|
---|
| 1062 | #endif
|
---|
| 1063 | return rc;
|
---|
| 1064 | }
|
---|
| 1065 |
|
---|
| 1066 |
|
---|
| 1067 | /**
|
---|
| 1068 | * Device I/O Control entry point, slow variant.
|
---|
| 1069 | *
|
---|
| 1070 | * @param pFilp Associated file pointer.
|
---|
| 1071 | * @param uCmd The function specified to ioctl().
|
---|
| 1072 | * @param ulArg The argument specified to ioctl().
|
---|
| 1073 | * @param pSession The session instance.
|
---|
| 1074 | */
|
---|
| 1075 | static int vgdrvLinuxIOCtlSlow(struct file *pFilp, unsigned int uCmd, unsigned long ulArg, PVBOXGUESTSESSION pSession)
|
---|
| 1076 | {
|
---|
[1] | 1077 | int rc;
|
---|
[68561] | 1078 | VBGLREQHDR Hdr;
|
---|
| 1079 | PVBGLREQHDR pHdr;
|
---|
| 1080 | uint32_t cbBuf;
|
---|
[1] | 1081 |
|
---|
[68561] | 1082 | Log6(("vgdrvLinuxIOCtlSlow: pFilp=%p uCmd=%#x ulArg=%p pid=%d/%d\n", pFilp, uCmd, (void *)ulArg, RTProcSelf(), current->pid));
|
---|
[1] | 1083 |
|
---|
| 1084 | /*
|
---|
[68561] | 1085 | * Read the header.
|
---|
| 1086 | */
|
---|
| 1087 | if (RT_FAILURE(RTR0MemUserCopyFrom(&Hdr, ulArg, sizeof(Hdr))))
|
---|
| 1088 | {
|
---|
| 1089 | Log(("vgdrvLinuxIOCtlSlow: copy_from_user(,%#lx,) failed; uCmd=%#x\n", ulArg, uCmd));
|
---|
| 1090 | return -EFAULT;
|
---|
| 1091 | }
|
---|
| 1092 | if (RT_UNLIKELY(Hdr.uVersion != VBGLREQHDR_VERSION))
|
---|
| 1093 | {
|
---|
| 1094 | Log(("vgdrvLinuxIOCtlSlow: bad header version %#x; uCmd=%#x\n", Hdr.uVersion, uCmd));
|
---|
| 1095 | return -EINVAL;
|
---|
| 1096 | }
|
---|
| 1097 |
|
---|
| 1098 | /*
|
---|
[4800] | 1099 | * Buffer the request.
|
---|
[68561] | 1100 | * Note! The header is revalidated by the common code.
|
---|
[1] | 1101 | */
|
---|
[68561] | 1102 | cbBuf = RT_MAX(Hdr.cbIn, Hdr.cbOut);
|
---|
| 1103 | if (RT_UNLIKELY(cbBuf > _1M*16))
|
---|
[1] | 1104 | {
|
---|
[68561] | 1105 | Log(("vgdrvLinuxIOCtlSlow: too big cbBuf=%#x; uCmd=%#x\n", cbBuf, uCmd));
|
---|
| 1106 | return -E2BIG;
|
---|
[1] | 1107 | }
|
---|
[68561] | 1108 | if (RT_UNLIKELY( Hdr.cbIn < sizeof(Hdr)
|
---|
| 1109 | || (cbBuf != _IOC_SIZE(uCmd) && _IOC_SIZE(uCmd) != 0)))
|
---|
[4800] | 1110 | {
|
---|
[68561] | 1111 | Log(("vgdrvLinuxIOCtlSlow: bad ioctl cbBuf=%#x _IOC_SIZE=%#x; uCmd=%#x\n", cbBuf, _IOC_SIZE(uCmd), uCmd));
|
---|
| 1112 | return -EINVAL;
|
---|
| 1113 | }
|
---|
| 1114 | pHdr = RTMemAlloc(cbBuf);
|
---|
| 1115 | if (RT_UNLIKELY(!pHdr))
|
---|
| 1116 | {
|
---|
| 1117 | LogRel(("vgdrvLinuxIOCtlSlow: failed to allocate buffer of %d bytes for uCmd=%#x\n", cbBuf, uCmd));
|
---|
| 1118 | return -ENOMEM;
|
---|
| 1119 | }
|
---|
| 1120 | if (RT_FAILURE(RTR0MemUserCopyFrom(pHdr, ulArg, Hdr.cbIn)))
|
---|
| 1121 | {
|
---|
| 1122 | Log(("vgdrvLinuxIOCtlSlow: copy_from_user(,%#lx, %#x) failed; uCmd=%#x\n", ulArg, Hdr.cbIn, uCmd));
|
---|
| 1123 | RTMemFree(pHdr);
|
---|
| 1124 | return -EFAULT;
|
---|
| 1125 | }
|
---|
| 1126 | if (Hdr.cbIn < cbBuf)
|
---|
| 1127 | RT_BZERO((uint8_t *)pHdr + Hdr.cbIn, cbBuf - Hdr.cbIn);
|
---|
| 1128 |
|
---|
| 1129 | /*
|
---|
| 1130 | * Process the IOCtl.
|
---|
| 1131 | */
|
---|
| 1132 | rc = VGDrvCommonIoCtl(uCmd, &g_DevExt, pSession, pHdr, cbBuf);
|
---|
| 1133 |
|
---|
| 1134 | /*
|
---|
| 1135 | * Copy ioctl data and output buffer back to user space.
|
---|
| 1136 | */
|
---|
| 1137 | if (RT_SUCCESS(rc))
|
---|
| 1138 | {
|
---|
| 1139 | uint32_t cbOut = pHdr->cbOut;
|
---|
| 1140 | if (RT_UNLIKELY(cbOut > cbBuf))
|
---|
[21069] | 1141 | {
|
---|
[68561] | 1142 | LogRel(("vgdrvLinuxIOCtlSlow: too much output! %#x > %#x; uCmd=%#x!\n", cbOut, cbBuf, uCmd));
|
---|
| 1143 | cbOut = cbBuf;
|
---|
[21069] | 1144 | }
|
---|
[68561] | 1145 | if (RT_FAILURE(RTR0MemUserCopyTo(ulArg, pHdr, cbOut)))
|
---|
| 1146 | {
|
---|
| 1147 | /* this is really bad! */
|
---|
| 1148 | LogRel(("vgdrvLinuxIOCtlSlow: copy_to_user(%#lx,,%#x); uCmd=%#x!\n", ulArg, cbOut, uCmd));
|
---|
| 1149 | rc = -EFAULT;
|
---|
| 1150 | }
|
---|
[4800] | 1151 | }
|
---|
[68561] | 1152 | else
|
---|
[4800] | 1153 | {
|
---|
[68561] | 1154 | Log(("vgdrvLinuxIOCtlSlow: pFilp=%p uCmd=%#x ulArg=%p failed, rc=%d\n", pFilp, uCmd, (void *)ulArg, rc));
|
---|
| 1155 | rc = -EINVAL;
|
---|
| 1156 | }
|
---|
| 1157 | RTMemFree(pHdr);
|
---|
[1] | 1158 |
|
---|
[68561] | 1159 | Log6(("vgdrvLinuxIOCtlSlow: returns %d (pid=%d/%d)\n", rc, RTProcSelf(), current->pid));
|
---|
| 1160 | return rc;
|
---|
| 1161 | }
|
---|
| 1162 |
|
---|
| 1163 |
|
---|
| 1164 | /**
|
---|
| 1165 | * @note This code is duplicated on other platforms with variations, so please
|
---|
| 1166 | * keep them all up to date when making changes!
|
---|
| 1167 | */
|
---|
[68565] | 1168 | int VBOXCALL VBoxGuestIDC(void *pvSession, uintptr_t uReq, PVBGLREQHDR pReqHdr, size_t cbReq)
|
---|
[68561] | 1169 | {
|
---|
| 1170 | /*
|
---|
| 1171 | * Simple request validation (common code does the rest).
|
---|
| 1172 | */
|
---|
| 1173 | int rc;
|
---|
[68565] | 1174 | if ( RT_VALID_PTR(pReqHdr)
|
---|
| 1175 | && cbReq >= sizeof(*pReqHdr))
|
---|
[68561] | 1176 | {
|
---|
[21069] | 1177 | /*
|
---|
[68561] | 1178 | * All requests except the connect one requires a valid session.
|
---|
[21069] | 1179 | */
|
---|
[68561] | 1180 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pvSession;
|
---|
| 1181 | if (pSession)
|
---|
[1] | 1182 | {
|
---|
[68561] | 1183 | if ( RT_VALID_PTR(pSession)
|
---|
| 1184 | && pSession->pDevExt == &g_DevExt)
|
---|
[68565] | 1185 | rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq);
|
---|
[68561] | 1186 | else
|
---|
| 1187 | rc = VERR_INVALID_HANDLE;
|
---|
| 1188 | }
|
---|
| 1189 | else if (uReq == VBGL_IOCTL_IDC_CONNECT)
|
---|
| 1190 | {
|
---|
| 1191 | rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession);
|
---|
| 1192 | if (RT_SUCCESS(rc))
|
---|
[21069] | 1193 | {
|
---|
[68565] | 1194 | rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq);
|
---|
[68561] | 1195 | if (RT_FAILURE(rc))
|
---|
| 1196 | VGDrvCommonCloseSession(&g_DevExt, pSession);
|
---|
[21069] | 1197 | }
|
---|
[1] | 1198 | }
|
---|
[21069] | 1199 | else
|
---|
[68561] | 1200 | rc = VERR_INVALID_HANDLE;
|
---|
[1] | 1201 | }
|
---|
[4800] | 1202 | else
|
---|
[68561] | 1203 | rc = VERR_INVALID_POINTER;
|
---|
[1] | 1204 | return rc;
|
---|
| 1205 | }
|
---|
[68561] | 1206 | EXPORT_SYMBOL(VBoxGuestIDC);
|
---|
[1] | 1207 |
|
---|
[21095] | 1208 |
|
---|
| 1209 | /**
|
---|
[21102] | 1210 | * Asynchronous notification activation method.
|
---|
| 1211 | *
|
---|
| 1212 | * @returns 0 on success, negative errno on failure.
|
---|
| 1213 | *
|
---|
| 1214 | * @param fd The file descriptor.
|
---|
| 1215 | * @param pFile The file structure.
|
---|
| 1216 | * @param fOn On/off indicator.
|
---|
| 1217 | */
|
---|
[58113] | 1218 | static int vgdrvLinuxFAsync(int fd, struct file *pFile, int fOn)
|
---|
[21102] | 1219 | {
|
---|
| 1220 | return fasync_helper(fd, pFile, fOn, &g_pFAsyncQueue);
|
---|
| 1221 | }
|
---|
| 1222 |
|
---|
| 1223 |
|
---|
| 1224 | /**
|
---|
[21095] | 1225 | * Poll function.
|
---|
| 1226 | *
|
---|
| 1227 | * This returns ready to read if the mouse pointer mode or the pointer position
|
---|
| 1228 | * has changed since last call to read.
|
---|
| 1229 | *
|
---|
| 1230 | * @returns 0 if no changes, POLLIN | POLLRDNORM if there are unseen changes.
|
---|
| 1231 | *
|
---|
| 1232 | * @param pFile The file structure.
|
---|
| 1233 | * @param pPt The poll table.
|
---|
[21102] | 1234 | *
|
---|
| 1235 | * @remarks This is probably not really used, X11 is said to use the fasync
|
---|
| 1236 | * interface instead.
|
---|
[21095] | 1237 | */
|
---|
[58113] | 1238 | static unsigned int vgdrvLinuxPoll(struct file *pFile, poll_table *pPt)
|
---|
[21095] | 1239 | {
|
---|
| 1240 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pFile->private_data;
|
---|
| 1241 | uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
|
---|
| 1242 | unsigned int fMask = pSession->u32MousePosChangedSeq != u32CurSeq
|
---|
| 1243 | ? POLLIN | POLLRDNORM
|
---|
| 1244 | : 0;
|
---|
| 1245 | poll_wait(pFile, &g_PollEventQueue, pPt);
|
---|
| 1246 | return fMask;
|
---|
| 1247 | }
|
---|
| 1248 |
|
---|
| 1249 |
|
---|
| 1250 | /**
|
---|
| 1251 | * Read to go with our poll/fasync response.
|
---|
| 1252 | *
|
---|
| 1253 | * @returns 1 or -EINVAL.
|
---|
| 1254 | *
|
---|
| 1255 | * @param pFile The file structure.
|
---|
| 1256 | * @param pbBuf The buffer to read into.
|
---|
| 1257 | * @param cbRead The max number of bytes to read.
|
---|
| 1258 | * @param poff The current file position.
|
---|
[21102] | 1259 | *
|
---|
| 1260 | * @remarks This is probably not really used as X11 lets the driver do its own
|
---|
| 1261 | * event reading. The poll condition is therefore also cleared when we
|
---|
[58113] | 1262 | * see VMMDevReq_GetMouseStatus in vgdrvIoCtl_VMMRequest.
|
---|
[21095] | 1263 | */
|
---|
[58113] | 1264 | static ssize_t vgdrvLinuxRead(struct file *pFile, char *pbBuf, size_t cbRead, loff_t *poff)
|
---|
[21095] | 1265 | {
|
---|
[21102] | 1266 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pFile->private_data;
|
---|
| 1267 | uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
|
---|
| 1268 |
|
---|
[21095] | 1269 | if (*poff != 0)
|
---|
| 1270 | return -EINVAL;
|
---|
| 1271 |
|
---|
[21102] | 1272 | /*
|
---|
| 1273 | * Fake a single byte read if we're not up to date with the current mouse position.
|
---|
| 1274 | */
|
---|
| 1275 | if ( pSession->u32MousePosChangedSeq != u32CurSeq
|
---|
| 1276 | && cbRead > 0)
|
---|
[21095] | 1277 | {
|
---|
| 1278 | pSession->u32MousePosChangedSeq = u32CurSeq;
|
---|
| 1279 | pbBuf[0] = 0;
|
---|
| 1280 | return 1;
|
---|
| 1281 | }
|
---|
| 1282 | return 0;
|
---|
| 1283 | }
|
---|
| 1284 |
|
---|
| 1285 |
|
---|
[97790] | 1286 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
|
---|
| 1287 | /**
|
---|
| 1288 | * Get host mouse state.
|
---|
| 1289 | *
|
---|
| 1290 | * @returns IPRT status code.
|
---|
| 1291 | * @param pfMouseFeatures Where to store host mouse capabilities.
|
---|
| 1292 | * @param pX Where to store X axis coordinate.
|
---|
| 1293 | * @param pY Where to store Y axis coordinate.
|
---|
| 1294 | * @param pDz Where to store vertical wheel movement offset (only set if in case of VMMDevReq_GetMouseStatusEx request).
|
---|
| 1295 | * @param pDw Where to store horizontal wheel movement offset (only set if in case of VMMDevReq_GetMouseStatusEx request).
|
---|
| 1296 | * @param pfButtons Where to store mouse buttons state (only set if in case of VMMDevReq_GetMouseStatusEx request).
|
---|
| 1297 | */
|
---|
| 1298 | static int vgdrvLinuxGetHostMouseState(uint32_t *pfMouseFeatures, int32_t *pX, int32_t *pY, int32_t *pDz, int32_t *pDw, uint32_t *pfButtons)
|
---|
| 1299 | {
|
---|
| 1300 | int rc = VERR_INVALID_PARAMETER;
|
---|
| 1301 |
|
---|
| 1302 | Assert(pfMouseFeatures);
|
---|
| 1303 | Assert(pX);
|
---|
| 1304 | Assert(pY);
|
---|
| 1305 | Assert(pDz);
|
---|
| 1306 | Assert(pDw);
|
---|
| 1307 | Assert(pfButtons);
|
---|
| 1308 |
|
---|
| 1309 | /* Initialize legacy request data. */
|
---|
| 1310 | g_pMouseStatusReqEx->Core.mouseFeatures = 0;
|
---|
| 1311 | g_pMouseStatusReqEx->Core.pointerXPos = 0;
|
---|
| 1312 | g_pMouseStatusReqEx->Core.pointerYPos = 0;
|
---|
| 1313 |
|
---|
| 1314 | /* Initialize extended request data if VMMDevReq_GetMouseStatusEx is used. */
|
---|
| 1315 | if (vgdrvLinuxUsesMouseStatusEx())
|
---|
| 1316 | {
|
---|
| 1317 | g_pMouseStatusReqEx->dz = 0;
|
---|
| 1318 | g_pMouseStatusReqEx->dw = 0;
|
---|
| 1319 | g_pMouseStatusReqEx->fButtons = 0;
|
---|
| 1320 | }
|
---|
| 1321 |
|
---|
| 1322 | /* Get host mouse state - either lagacy or extended version. */
|
---|
| 1323 | rc = VbglR0GRPerform(&g_pMouseStatusReqEx->Core.header);
|
---|
| 1324 | if (RT_SUCCESS(rc))
|
---|
| 1325 | {
|
---|
| 1326 | *pfMouseFeatures = g_pMouseStatusReqEx->Core.mouseFeatures;
|
---|
| 1327 | *pX = g_pMouseStatusReqEx->Core.pointerXPos;
|
---|
| 1328 | *pY = g_pMouseStatusReqEx->Core.pointerYPos;
|
---|
| 1329 |
|
---|
| 1330 | /* Get extended mouse state data in case of VMMDevReq_GetMouseStatusEx. */
|
---|
| 1331 | if (vgdrvLinuxUsesMouseStatusEx())
|
---|
| 1332 | {
|
---|
| 1333 | *pDz = g_pMouseStatusReqEx->dz;
|
---|
| 1334 | *pDw = g_pMouseStatusReqEx->dw;
|
---|
| 1335 | *pfButtons = g_pMouseStatusReqEx->fButtons;
|
---|
| 1336 | }
|
---|
| 1337 | }
|
---|
| 1338 |
|
---|
| 1339 | return rc;
|
---|
| 1340 | }
|
---|
| 1341 | #endif /* VBOXGUEST_WITH_INPUT_DRIVER */
|
---|
| 1342 |
|
---|
| 1343 |
|
---|
[58053] | 1344 | void VGDrvNativeISRMousePollEvent(PVBOXGUESTDEVEXT pDevExt)
|
---|
[21095] | 1345 | {
|
---|
[38975] | 1346 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
|
---|
[38594] | 1347 | int rc;
|
---|
[97790] | 1348 | uint32_t fMouseFeatures = 0;
|
---|
| 1349 | int32_t x = 0;
|
---|
| 1350 | int32_t y = 0;
|
---|
| 1351 | int32_t dz = 0;
|
---|
| 1352 | int32_t dw = 0;
|
---|
| 1353 | uint32_t fButtons = 0;
|
---|
[38975] | 1354 | #endif
|
---|
[38768] | 1355 | NOREF(pDevExt);
|
---|
[21095] | 1356 |
|
---|
[38768] | 1357 | /*
|
---|
| 1358 | * Wake up everyone that's in a poll() and post anyone that has
|
---|
| 1359 | * subscribed to async notifications.
|
---|
| 1360 | */
|
---|
[58053] | 1361 | Log3(("VGDrvNativeISRMousePollEvent: wake_up_all\n"));
|
---|
[38768] | 1362 | wake_up_all(&g_PollEventQueue);
|
---|
[58053] | 1363 | Log3(("VGDrvNativeISRMousePollEvent: kill_fasync\n"));
|
---|
[38768] | 1364 | kill_fasync(&g_pFAsyncQueue, SIGIO, POLL_IN);
|
---|
[38975] | 1365 | #ifdef VBOXGUEST_WITH_INPUT_DRIVER
|
---|
[97790] | 1366 | rc = vgdrvLinuxGetHostMouseState(&fMouseFeatures, &x, &y, &dz, &dw, &fButtons);
|
---|
[38594] | 1367 | if (RT_SUCCESS(rc))
|
---|
| 1368 | {
|
---|
[97790] | 1369 | input_report_abs(g_pInputDevice, ABS_X, x);
|
---|
| 1370 | input_report_abs(g_pInputDevice, ABS_Y, y);
|
---|
| 1371 |
|
---|
| 1372 | if ( vgdrvLinuxUsesMouseStatusEx()
|
---|
[98542] | 1373 | && ( fMouseFeatures
|
---|
| 1374 | & (VMMDEV_MOUSE_HOST_SUPPORTS_FULL_STATE_PROTOCOL | VMMDEV_MOUSE_GUEST_USES_FULL_STATE_PROTOCOL))
|
---|
| 1375 | == ( VMMDEV_MOUSE_HOST_SUPPORTS_FULL_STATE_PROTOCOL | VMMDEV_MOUSE_GUEST_USES_FULL_STATE_PROTOCOL ) )
|
---|
[97790] | 1376 | {
|
---|
[97828] | 1377 | /* Vertical and horizontal scroll values come as-is from GUI.
|
---|
| 1378 | * Invert values here as it is done in PS/2 mouse driver, so
|
---|
| 1379 | * scrolling direction will be exectly the same. */
|
---|
| 1380 | input_report_rel(g_pInputDevice, REL_WHEEL, -dz);
|
---|
| 1381 | input_report_rel(g_pInputDevice, REL_HWHEEL, -dw);
|
---|
[97790] | 1382 |
|
---|
| 1383 | input_report_key(g_pInputDevice, BTN_LEFT, RT_BOOL(fButtons & VMMDEV_MOUSE_BUTTON_LEFT));
|
---|
| 1384 | input_report_key(g_pInputDevice, BTN_RIGHT, RT_BOOL(fButtons & VMMDEV_MOUSE_BUTTON_RIGHT));
|
---|
| 1385 | input_report_key(g_pInputDevice, BTN_MIDDLE, RT_BOOL(fButtons & VMMDEV_MOUSE_BUTTON_MIDDLE));
|
---|
| 1386 | input_report_key(g_pInputDevice, BTN_SIDE, RT_BOOL(fButtons & VMMDEV_MOUSE_BUTTON_X1));
|
---|
| 1387 | input_report_key(g_pInputDevice, BTN_EXTRA, RT_BOOL(fButtons & VMMDEV_MOUSE_BUTTON_X2));
|
---|
| 1388 | }
|
---|
| 1389 |
|
---|
[38975] | 1390 | # ifdef EV_SYN
|
---|
[38649] | 1391 | input_sync(g_pInputDevice);
|
---|
[38975] | 1392 | # endif
|
---|
| 1393 | }
|
---|
[38649] | 1394 | #endif
|
---|
[58053] | 1395 | Log3(("VGDrvNativeISRMousePollEvent: done\n"));
|
---|
[21095] | 1396 | }
|
---|
| 1397 |
|
---|
| 1398 |
|
---|
[70066] | 1399 | bool VGDrvNativeProcessOption(PVBOXGUESTDEVEXT pDevExt, const char *pszName, const char *pszValue)
|
---|
| 1400 | {
|
---|
| 1401 | RT_NOREF(pDevExt); RT_NOREF(pszName); RT_NOREF(pszValue);
|
---|
| 1402 | return false;
|
---|
| 1403 | }
|
---|
| 1404 |
|
---|
| 1405 |
|
---|
[85698] | 1406 | #if RTLNX_VER_MIN(2,6,0)
|
---|
[21376] | 1407 |
|
---|
| 1408 | /** log and dbg_log parameter setter. */
|
---|
[70625] | 1409 | static int vgdrvLinuxParamLogGrpSet(const char *pszValue, CONST_4_15 struct kernel_param *pParam)
|
---|
[21376] | 1410 | {
|
---|
| 1411 | if (g_fLoggerCreated)
|
---|
| 1412 | {
|
---|
[55980] | 1413 | PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
|
---|
[21376] | 1414 | if (pLogger)
|
---|
| 1415 | RTLogGroupSettings(pLogger, pszValue);
|
---|
| 1416 | }
|
---|
| 1417 | else if (pParam->name[0] != 'd')
|
---|
[103024] | 1418 | RTStrCopy(&g_szLogGrp[0], sizeof(g_szLogGrp), pszValue);
|
---|
[21376] | 1419 | return 0;
|
---|
| 1420 | }
|
---|
| 1421 |
|
---|
| 1422 | /** log and dbg_log parameter getter. */
|
---|
[70625] | 1423 | static int vgdrvLinuxParamLogGrpGet(char *pszBuf, CONST_4_15 struct kernel_param *pParam)
|
---|
[21376] | 1424 | {
|
---|
[55980] | 1425 | PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
|
---|
[21376] | 1426 | *pszBuf = '\0';
|
---|
[21377] | 1427 | if (pLogger)
|
---|
[90692] | 1428 | RTLogQueryGroupSettings(pLogger, pszBuf, _4K);
|
---|
[21377] | 1429 | return strlen(pszBuf);
|
---|
[21376] | 1430 | }
|
---|
| 1431 |
|
---|
| 1432 |
|
---|
| 1433 | /** log and dbg_log_flags parameter setter. */
|
---|
[70625] | 1434 | static int vgdrvLinuxParamLogFlagsSet(const char *pszValue, CONST_4_15 struct kernel_param *pParam)
|
---|
[21376] | 1435 | {
|
---|
| 1436 | if (g_fLoggerCreated)
|
---|
| 1437 | {
|
---|
[55980] | 1438 | PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
|
---|
[21376] | 1439 | if (pLogger)
|
---|
| 1440 | RTLogFlags(pLogger, pszValue);
|
---|
| 1441 | }
|
---|
| 1442 | else if (pParam->name[0] != 'd')
|
---|
[103024] | 1443 | RTStrCopy(&g_szLogFlags[0], sizeof(g_szLogFlags), pszValue);
|
---|
[21376] | 1444 | return 0;
|
---|
| 1445 | }
|
---|
| 1446 |
|
---|
| 1447 | /** log and dbg_log_flags parameter getter. */
|
---|
[70625] | 1448 | static int vgdrvLinuxParamLogFlagsGet(char *pszBuf, CONST_4_15 struct kernel_param *pParam)
|
---|
[21376] | 1449 | {
|
---|
[55980] | 1450 | PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
|
---|
[21376] | 1451 | *pszBuf = '\0';
|
---|
[21377] | 1452 | if (pLogger)
|
---|
[90692] | 1453 | RTLogQueryFlags(pLogger, pszBuf, _4K);
|
---|
[21377] | 1454 | return strlen(pszBuf);
|
---|
[21376] | 1455 | }
|
---|
| 1456 |
|
---|
| 1457 |
|
---|
| 1458 | /** log and dbg_log_dest parameter setter. */
|
---|
[70625] | 1459 | static int vgdrvLinuxParamLogDstSet(const char *pszValue, CONST_4_15 struct kernel_param *pParam)
|
---|
[21376] | 1460 | {
|
---|
[21377] | 1461 | if (g_fLoggerCreated)
|
---|
| 1462 | {
|
---|
[55980] | 1463 | PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
|
---|
[21377] | 1464 | if (pLogger)
|
---|
| 1465 | RTLogDestinations(pLogger, pszValue);
|
---|
| 1466 | }
|
---|
| 1467 | else if (pParam->name[0] != 'd')
|
---|
[103024] | 1468 | RTStrCopy(&g_szLogDst[0], sizeof(g_szLogDst), pszValue);
|
---|
[21376] | 1469 | return 0;
|
---|
| 1470 | }
|
---|
| 1471 |
|
---|
| 1472 | /** log and dbg_log_dest parameter getter. */
|
---|
[70625] | 1473 | static int vgdrvLinuxParamLogDstGet(char *pszBuf, CONST_4_15 struct kernel_param *pParam)
|
---|
[21376] | 1474 | {
|
---|
[55980] | 1475 | PRTLOGGER pLogger = pParam->name[0] == 'd' ? RTLogDefaultInstance() : RTLogRelGetDefaultInstance();
|
---|
[21376] | 1476 | *pszBuf = '\0';
|
---|
[21377] | 1477 | if (pLogger)
|
---|
[90692] | 1478 | RTLogQueryDestinations(pLogger, pszBuf, _4K);
|
---|
[21377] | 1479 | return strlen(pszBuf);
|
---|
[21376] | 1480 | }
|
---|
| 1481 |
|
---|
[54606] | 1482 |
|
---|
| 1483 | /** r3_log_to_host parameter setter. */
|
---|
[70625] | 1484 | static int vgdrvLinuxParamR3LogToHostSet(const char *pszValue, CONST_4_15 struct kernel_param *pParam)
|
---|
[54606] | 1485 | {
|
---|
[70095] | 1486 | g_DevExt.fLoggingEnabled = VBDrvCommonIsOptionValueTrue(pszValue);
|
---|
[54606] | 1487 | return 0;
|
---|
| 1488 | }
|
---|
| 1489 |
|
---|
| 1490 | /** r3_log_to_host parameter getter. */
|
---|
[70625] | 1491 | static int vgdrvLinuxParamR3LogToHostGet(char *pszBuf, CONST_4_15 struct kernel_param *pParam)
|
---|
[54606] | 1492 | {
|
---|
| 1493 | strcpy(pszBuf, g_DevExt.fLoggingEnabled ? "enabled" : "disabled");
|
---|
| 1494 | return strlen(pszBuf);
|
---|
| 1495 | }
|
---|
| 1496 |
|
---|
| 1497 |
|
---|
[21376] | 1498 | /*
|
---|
| 1499 | * Define module parameters.
|
---|
| 1500 | */
|
---|
[58113] | 1501 | module_param_call(log, vgdrvLinuxParamLogGrpSet, vgdrvLinuxParamLogGrpGet, NULL, 0664);
|
---|
| 1502 | module_param_call(log_flags, vgdrvLinuxParamLogFlagsSet, vgdrvLinuxParamLogFlagsGet, NULL, 0664);
|
---|
| 1503 | module_param_call(log_dest, vgdrvLinuxParamLogDstSet, vgdrvLinuxParamLogDstGet, NULL, 0664);
|
---|
[21376] | 1504 | # ifdef LOG_ENABLED
|
---|
[58113] | 1505 | module_param_call(dbg_log, vgdrvLinuxParamLogGrpSet, vgdrvLinuxParamLogGrpGet, NULL, 0664);
|
---|
| 1506 | module_param_call(dbg_log_flags, vgdrvLinuxParamLogFlagsSet, vgdrvLinuxParamLogFlagsGet, NULL, 0664);
|
---|
| 1507 | module_param_call(dbg_log_dest, vgdrvLinuxParamLogDstSet, vgdrvLinuxParamLogDstGet, NULL, 0664);
|
---|
[21376] | 1508 | # endif
|
---|
[58113] | 1509 | module_param_call(r3_log_to_host, vgdrvLinuxParamR3LogToHostSet, vgdrvLinuxParamR3LogToHostGet, NULL, 0664);
|
---|
[21376] | 1510 |
|
---|
| 1511 | #endif /* 2.6.0 and later */
|
---|
| 1512 |
|
---|
| 1513 |
|
---|
[58113] | 1514 | module_init(vgdrvLinuxModInit);
|
---|
| 1515 | module_exit(vgdrvLinuxModExit);
|
---|
[10263] | 1516 |
|
---|
[28283] | 1517 | MODULE_AUTHOR(VBOX_VENDOR);
|
---|
| 1518 | MODULE_DESCRIPTION(VBOX_PRODUCT " Guest Additions for Linux Module");
|
---|
[1] | 1519 | MODULE_LICENSE("GPL");
|
---|
[1666] | 1520 | #ifdef MODULE_VERSION
|
---|
[60584] | 1521 | MODULE_VERSION(VBOX_VERSION_STRING " r" RT_XSTR(VBOX_SVN_REV));
|
---|
[1666] | 1522 | #endif
|
---|
[38768] | 1523 |
|
---|