[8155] | 1 | /* $Id: VBoxGuest-freebsd.c 100267 2023-06-23 14:57:53Z vboxsync $ */
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[7549] | 2 | /** @file
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| 3 | * VirtualBox Guest Additions Driver for FreeBSD.
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| 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2007-2023 Oracle and/or its affiliates.
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[7549] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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[69308] | 11 | *
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[96407] | 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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[69308] | 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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[96407] | 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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[69308] | 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[7549] | 35 | */
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| 36 |
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| 37 | /** @todo r=bird: This must merge with SUPDrv-freebsd.c before long. The two
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| 38 | * source files should only differ on prefixes and the extra bits wrt to the
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| 39 | * pci device. I.e. it should be diffable so that fixes to one can easily be
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| 40 | * applied to the other. */
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| 41 |
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[58113] | 42 |
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| 43 | /*********************************************************************************************************************************
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| 44 | * Header Files *
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| 45 | *********************************************************************************************************************************/
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[7549] | 46 | #include <sys/param.h>
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[58113] | 47 | #undef PVM
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| 48 | #include <sys/types.h>
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| 49 | #include <sys/module.h>
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[7549] | 50 | #include <sys/systm.h>
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[58113] | 51 | #include <sys/errno.h>
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| 52 | #include <sys/kernel.h>
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| 53 | #include <sys/fcntl.h>
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[22575] | 54 | #include <sys/conf.h>
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[58113] | 55 | #include <sys/uio.h>
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[7549] | 56 | #include <sys/bus.h>
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[22575] | 57 | #include <sys/poll.h>
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| 58 | #include <sys/selinfo.h>
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[7549] | 59 | #include <sys/queue.h>
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[22575] | 60 | #include <sys/lock.h>
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[7549] | 61 | #include <sys/lockmgr.h>
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| 62 | #include <sys/malloc.h>
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| 63 | #include <sys/file.h>
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[22575] | 64 | #include <sys/rman.h>
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[7549] | 65 | #include <machine/bus.h>
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| 66 | #include <machine/resource.h>
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| 67 | #include <dev/pci/pcivar.h>
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| 68 | #include <dev/pci/pcireg.h>
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| 69 |
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| 70 | #include "VBoxGuestInternal.h"
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[58113] | 71 | #include <VBox/version.h>
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[7549] | 72 | #include <VBox/log.h>
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| 73 | #include <iprt/assert.h>
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| 74 | #include <iprt/initterm.h>
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| 75 | #include <iprt/process.h>
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[68581] | 76 | #include <iprt/string.h>
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[7549] | 77 | #include <iprt/mem.h>
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[8188] | 78 | #include <iprt/asm.h>
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[7549] | 79 |
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[58113] | 80 |
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| 81 | /*********************************************************************************************************************************
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| 82 | * Defined Constants And Macros *
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| 83 | *********************************************************************************************************************************/
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[7549] | 84 | /** The module name. */
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[58113] | 85 | #define DEVICE_NAME "vboxguest"
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[7549] | 86 |
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[58113] | 87 |
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| 88 | /*********************************************************************************************************************************
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| 89 | * Structures and Typedefs *
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| 90 | *********************************************************************************************************************************/
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[7549] | 91 | struct VBoxGuestDeviceState
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| 92 | {
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[8188] | 93 | /** Resource ID of the I/O port */
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| 94 | int iIOPortResId;
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| 95 | /** Pointer to the I/O port resource. */
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| 96 | struct resource *pIOPortRes;
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| 97 | /** Start address of the IO Port. */
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[7549] | 98 | uint16_t uIOPortBase;
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[8188] | 99 | /** Resource ID of the MMIO area */
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| 100 | int iVMMDevMemResId;
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| 101 | /** Pointer to the MMIO resource. */
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| 102 | struct resource *pVMMDevMemRes;
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| 103 | /** Handle of the MMIO resource. */
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| 104 | bus_space_handle_t VMMDevMemHandle;
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| 105 | /** Size of the memory area. */
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| 106 | bus_size_t VMMDevMemSize;
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[7549] | 107 | /** Mapping of the register space */
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| 108 | void *pMMIOBase;
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| 109 | /** IRQ number */
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[8188] | 110 | int iIrqResId;
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| 111 | /** IRQ resource handle. */
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| 112 | struct resource *pIrqRes;
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| 113 | /** Pointer to the IRQ handler. */
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| 114 | void *pfnIrqHandler;
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[7549] | 115 | /** VMMDev version */
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| 116 | uint32_t u32Version;
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| 117 | };
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| 118 |
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| 119 |
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[58113] | 120 | /*********************************************************************************************************************************
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| 121 | * Internal Functions *
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| 122 | *********************************************************************************************************************************/
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[8188] | 123 | /*
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| 124 | * Character device file handlers.
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| 125 | */
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[58113] | 126 | static d_fdopen_t vgdrvFreeBSDOpen;
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| 127 | static d_close_t vgdrvFreeBSDClose;
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| 128 | static d_ioctl_t vgdrvFreeBSDIOCtl;
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[68581] | 129 | static int vgdrvFreeBSDIOCtlSlow(PVBOXGUESTSESSION pSession, u_long ulCmd, caddr_t pvData, struct thread *pTd);
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[58113] | 130 | static d_write_t vgdrvFreeBSDWrite;
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| 131 | static d_read_t vgdrvFreeBSDRead;
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| 132 | static d_poll_t vgdrvFreeBSDPoll;
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[8188] | 133 |
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| 134 | /*
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| 135 | * IRQ related functions.
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| 136 | */
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[58113] | 137 | static void vgdrvFreeBSDRemoveIRQ(device_t pDevice, void *pvState);
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| 138 | static int vgdrvFreeBSDAddIRQ(device_t pDevice, void *pvState);
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| 139 | static int vgdrvFreeBSDISR(void *pvState);
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[8188] | 140 |
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[7549] | 141 |
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[58113] | 142 | /*********************************************************************************************************************************
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| 143 | * Global Variables *
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| 144 | *********************************************************************************************************************************/
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| 145 | static MALLOC_DEFINE(M_VBOXGUEST, "vboxguest", "VirtualBox Guest Device Driver");
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| 146 |
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[22575] | 147 | #ifndef D_NEEDMINOR
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| 148 | # define D_NEEDMINOR 0
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| 149 | #endif
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| 150 |
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[7549] | 151 | /*
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[58113] | 152 | * The /dev/vboxguest character device entry points.
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[7549] | 153 | */
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[58113] | 154 | static struct cdevsw g_vgdrvFreeBSDChrDevSW =
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[7549] | 155 | {
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| 156 | .d_version = D_VERSION,
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[22575] | 157 | .d_flags = D_TRACKCLOSE | D_NEEDMINOR,
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[58113] | 158 | .d_fdopen = vgdrvFreeBSDOpen,
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| 159 | .d_close = vgdrvFreeBSDClose,
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| 160 | .d_ioctl = vgdrvFreeBSDIOCtl,
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| 161 | .d_read = vgdrvFreeBSDRead,
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| 162 | .d_write = vgdrvFreeBSDWrite,
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| 163 | .d_poll = vgdrvFreeBSDPoll,
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| 164 | .d_name = "vboxguest"
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[7549] | 165 | };
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| 166 |
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| 167 | /** Device extention & session data association structure. */
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| 168 | static VBOXGUESTDEVEXT g_DevExt;
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[58113] | 169 |
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[8188] | 170 | /** List of cloned device. Managed by the kernel. */
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[58113] | 171 | static struct clonedevs *g_pvgdrvFreeBSDClones;
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[8188] | 172 | /** The dev_clone event handler tag. */
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[58113] | 173 | static eventhandler_tag g_vgdrvFreeBSDEHTag;
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[22575] | 174 | /** Reference counter */
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| 175 | static volatile uint32_t cUsers;
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| 176 | /** selinfo structure used for polling. */
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| 177 | static struct selinfo g_SelInfo;
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[7549] | 178 |
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| 179 | /**
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[8188] | 180 | * DEVFS event handler.
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| 181 | */
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[58113] | 182 | static void vgdrvFreeBSDClone(void *pvArg, struct ucred *pCred, char *pszName, int cchName, struct cdev **ppDev)
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[8188] | 183 | {
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| 184 | int iUnit;
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| 185 | int rc;
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| 186 |
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[58113] | 187 | Log(("vgdrvFreeBSDClone: pszName=%s ppDev=%p\n", pszName, ppDev));
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[8188] | 188 |
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| 189 | /*
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| 190 | * One device node per user, si_drv1 points to the session.
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| 191 | * /dev/vboxguest<N> where N = {0...255}.
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| 192 | */
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| 193 | if (!ppDev)
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| 194 | return;
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[22575] | 195 | if (strcmp(pszName, "vboxguest") == 0)
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| 196 | iUnit = -1;
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| 197 | else if (dev_stdclone(pszName, NULL, "vboxguest", &iUnit) != 1)
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[8188] | 198 | return;
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[22575] | 199 | if (iUnit >= 256)
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[8188] | 200 | {
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[58113] | 201 | Log(("vgdrvFreeBSDClone: iUnit=%d >= 256 - rejected\n", iUnit));
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[8188] | 202 | return;
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| 203 | }
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| 204 |
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[58113] | 205 | Log(("vgdrvFreeBSDClone: pszName=%s iUnit=%d\n", pszName, iUnit));
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[8188] | 206 |
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[58113] | 207 | rc = clone_create(&g_pvgdrvFreeBSDClones, &g_vgdrvFreeBSDChrDevSW, &iUnit, ppDev, 0);
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| 208 | Log(("vgdrvFreeBSDClone: clone_create -> %d; iUnit=%d\n", rc, iUnit));
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[8188] | 209 | if (rc)
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| 210 | {
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[58113] | 211 | *ppDev = make_dev(&g_vgdrvFreeBSDChrDevSW,
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[22575] | 212 | iUnit,
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[8188] | 213 | UID_ROOT,
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| 214 | GID_WHEEL,
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[38322] | 215 | 0664,
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[8188] | 216 | "vboxguest%d", iUnit);
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| 217 | if (*ppDev)
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| 218 | {
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| 219 | dev_ref(*ppDev);
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| 220 | (*ppDev)->si_flags |= SI_CHEAPCLONE;
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[58113] | 221 | Log(("vgdrvFreeBSDClone: Created *ppDev=%p iUnit=%d si_drv1=%p si_drv2=%p\n",
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[8188] | 222 | *ppDev, iUnit, (*ppDev)->si_drv1, (*ppDev)->si_drv2));
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| 223 | (*ppDev)->si_drv1 = (*ppDev)->si_drv2 = NULL;
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| 224 | }
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| 225 | else
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[58113] | 226 | Log(("vgdrvFreeBSDClone: make_dev iUnit=%d failed\n", iUnit));
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[8188] | 227 | }
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| 228 | else
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[58113] | 229 | Log(("vgdrvFreeBSDClone: Existing *ppDev=%p iUnit=%d si_drv1=%p si_drv2=%p\n",
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[8188] | 230 | *ppDev, iUnit, (*ppDev)->si_drv1, (*ppDev)->si_drv2));
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| 231 | }
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| 232 |
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| 233 | /**
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[7549] | 234 | * File open handler
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| 235 | *
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| 236 | */
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[8188] | 237 | #if __FreeBSD_version >= 700000
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[58113] | 238 | static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd, struct file *pFd)
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[7549] | 239 | #else
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[58113] | 240 | static int vgdrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd)
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[7549] | 241 | #endif
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| 242 | {
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| 243 | int rc;
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| 244 | PVBOXGUESTSESSION pSession;
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[75778] | 245 | uint32_t fRequestor;
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| 246 | struct ucred *pCred = curthread->td_ucred;
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| 247 | if (!pCred)
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| 248 | pCred = curproc->p_ucred;
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[7549] | 249 |
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[58113] | 250 | LogFlow(("vgdrvFreeBSDOpen:\n"));
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[7549] | 251 |
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| 252 | /*
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[8188] | 253 | * Try grab it (we don't grab the giant, remember).
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| 254 | */
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| 255 | if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, (void *)0x42, NULL))
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| 256 | return EBUSY;
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| 257 |
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| 258 | /*
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[7549] | 259 | * Create a new session.
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| 260 | */
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[75778] | 261 | fRequestor = VMMDEV_REQUESTOR_USERMODE | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN;
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| 262 | if (pCred && pCred->cr_uid == 0)
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| 263 | fRequestor |= VMMDEV_REQUESTOR_USR_ROOT;
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| 264 | else
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| 265 | fRequestor |= VMMDEV_REQUESTOR_USR_USER;
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| 266 | if (pCred && groupmember(0, pCred))
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| 267 | fRequestor |= VMMDEV_REQUESTOR_GRP_WHEEL;
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| 268 | fRequestor |= VMMDEV_REQUESTOR_NO_USER_DEVICE; /** @todo implement /dev/vboxuser
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| 269 | if (!fUnrestricted)
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| 270 | fRequestor |= VMMDEV_REQUESTOR_USER_DEVICE; */
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| 271 | fRequestor |= VMMDEV_REQUESTOR_CON_DONT_KNOW; /** @todo see if we can figure out console relationship of pProc. */
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| 272 | rc = VGDrvCommonCreateUserSession(&g_DevExt, fRequestor, &pSession);
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[7549] | 273 | if (RT_SUCCESS(rc))
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| 274 | {
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[8188] | 275 | if (ASMAtomicCmpXchgPtr(&pDev->si_drv1, pSession, (void *)0x42))
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| 276 | {
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[58113] | 277 | Log(("vgdrvFreeBSDOpen: success - g_DevExt=%p pSession=%p rc=%d pid=%d\n", &g_DevExt, pSession, rc, (int)RTProcSelf()));
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[22575] | 278 | ASMAtomicIncU32(&cUsers);
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[8188] | 279 | return 0;
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| 280 | }
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[7549] | 281 |
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[58053] | 282 | VGDrvCommonCloseSession(&g_DevExt, pSession);
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[7549] | 283 | }
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| 284 |
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[58113] | 285 | LogRel(("vgdrvFreeBSDOpen: failed. rc=%d\n", rc));
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[8188] | 286 | return RTErrConvertToErrno(rc);
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[7549] | 287 | }
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| 288 |
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| 289 | /**
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| 290 | * File close handler
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| 291 | *
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| 292 | */
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[58113] | 293 | static int vgdrvFreeBSDClose(struct cdev *pDev, int fFile, int DevType, struct thread *pTd)
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[7549] | 294 | {
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[8188] | 295 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pDev->si_drv1;
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[58113] | 296 | Log(("vgdrvFreeBSDClose: fFile=%#x pSession=%p\n", fFile, pSession));
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[7549] | 297 |
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| 298 | /*
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[8188] | 299 | * Close the session if it's still hanging on to the device...
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[7549] | 300 | */
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[90794] | 301 | if (RT_VALID_PTR(pSession))
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[7549] | 302 | {
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[58053] | 303 | VGDrvCommonCloseSession(&g_DevExt, pSession);
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[8188] | 304 | if (!ASMAtomicCmpXchgPtr(&pDev->si_drv1, NULL, pSession))
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[58113] | 305 | Log(("vgdrvFreeBSDClose: si_drv1=%p expected %p!\n", pDev->si_drv1, pSession));
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[22575] | 306 | ASMAtomicDecU32(&cUsers);
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| 307 | /* Don't use destroy_dev here because it may sleep resulting in a hanging user process. */
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| 308 | destroy_dev_sched(pDev);
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[7549] | 309 | }
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[8188] | 310 | else
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[58113] | 311 | Log(("vgdrvFreeBSDClose: si_drv1=%p!\n", pSession));
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[7549] | 312 | return 0;
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| 313 | }
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| 314 |
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[68581] | 315 |
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[7549] | 316 | /**
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[68581] | 317 | * I/O control request.
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[7549] | 318 | *
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[68581] | 319 | * @returns depends...
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| 320 | * @param pDev The device.
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| 321 | * @param ulCmd The command.
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| 322 | * @param pvData Pointer to the data.
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| 323 | * @param fFile The file descriptor flags.
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| 324 | * @param pTd The calling thread.
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[7549] | 325 | */
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[58113] | 326 | static int vgdrvFreeBSDIOCtl(struct cdev *pDev, u_long ulCmd, caddr_t pvData, int fFile, struct thread *pTd)
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[7549] | 327 | {
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[68581] | 328 | PVBOXGUESTSESSION pSession;
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| 329 | devfs_get_cdevpriv((void **)&pSession);
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[7549] | 330 |
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| 331 | /*
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[68581] | 332 | * Deal with the fast ioctl path first.
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[7549] | 333 | */
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[68581] | 334 | if (VBGL_IOCTL_IS_FAST(ulCmd))
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| 335 | return VGDrvCommonIoCtlFast(ulCmd, &g_DevExt, pSession);
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[7549] | 336 |
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[68581] | 337 | return vgdrvFreeBSDIOCtlSlow(pSession, ulCmd, pvData, pTd);
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| 338 | }
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| 339 |
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| 340 |
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| 341 | /**
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| 342 | * Deal with the 'slow' I/O control requests.
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| 343 | *
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| 344 | * @returns 0 on success, appropriate errno on failure.
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| 345 | * @param pSession The session.
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| 346 | * @param ulCmd The command.
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| 347 | * @param pvData The request data.
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| 348 | * @param pTd The calling thread.
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| 349 | */
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| 350 | static int vgdrvFreeBSDIOCtlSlow(PVBOXGUESTSESSION pSession, u_long ulCmd, caddr_t pvData, struct thread *pTd)
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| 351 | {
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| 352 | PVBGLREQHDR pHdr;
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| 353 | uint32_t cbReq = IOCPARM_LEN(ulCmd);
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| 354 | void *pvUser = NULL;
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| 355 |
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[7549] | 356 | /*
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[68581] | 357 | * Buffered request?
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[7549] | 358 | */
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[68581] | 359 | if ((IOC_DIRMASK & ulCmd) == IOC_INOUT)
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[7549] | 360 | {
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[68581] | 361 | pHdr = (PVBGLREQHDR)pvData;
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| 362 | if (RT_UNLIKELY(cbReq < sizeof(*pHdr)))
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| 363 | {
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| 364 | LogRel(("vgdrvFreeBSDIOCtlSlow: cbReq=%#x < %#x; ulCmd=%#lx\n", cbReq, (int)sizeof(*pHdr), ulCmd));
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| 365 | return EINVAL;
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| 366 | }
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| 367 | if (RT_UNLIKELY(pHdr->uVersion != VBGLREQHDR_VERSION))
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| 368 | {
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| 369 | LogRel(("vgdrvFreeBSDIOCtlSlow: bad uVersion=%#x; ulCmd=%#lx\n", pHdr->uVersion, ulCmd));
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| 370 | return EINVAL;
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| 371 | }
|
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| 372 | if (RT_UNLIKELY( RT_MAX(pHdr->cbIn, pHdr->cbOut) != cbReq
|
---|
| 373 | || pHdr->cbIn < sizeof(*pHdr)
|
---|
| 374 | || (pHdr->cbOut < sizeof(*pHdr) && pHdr->cbOut != 0)))
|
---|
| 375 | {
|
---|
| 376 | LogRel(("vgdrvFreeBSDIOCtlSlow: max(%#x,%#x) != %#x; ulCmd=%#lx\n", pHdr->cbIn, pHdr->cbOut, cbReq, ulCmd));
|
---|
| 377 | return EINVAL;
|
---|
| 378 | }
|
---|
[7549] | 379 | }
|
---|
[68581] | 380 | /*
|
---|
| 381 | * Big unbuffered request?
|
---|
| 382 | */
|
---|
| 383 | else if ((IOC_DIRMASK & ulCmd) == IOC_VOID && !cbReq)
|
---|
| 384 | {
|
---|
| 385 | /*
|
---|
| 386 | * Read the header, validate it and figure out how much that needs to be buffered.
|
---|
| 387 | */
|
---|
| 388 | VBGLREQHDR Hdr;
|
---|
| 389 | pvUser = *(void **)pvData;
|
---|
| 390 | int rc = copyin(pvUser, &Hdr, sizeof(Hdr));
|
---|
| 391 | if (RT_UNLIKELY(rc))
|
---|
| 392 | {
|
---|
| 393 | LogRel(("vgdrvFreeBSDIOCtlSlow: copyin(%p,Hdr,) -> %#x; ulCmd=%#lx\n", pvUser, rc, ulCmd));
|
---|
| 394 | return rc;
|
---|
| 395 | }
|
---|
| 396 | if (RT_UNLIKELY(Hdr.uVersion != VBGLREQHDR_VERSION))
|
---|
| 397 | {
|
---|
| 398 | LogRel(("vgdrvFreeBSDIOCtlSlow: bad uVersion=%#x; ulCmd=%#lx\n", Hdr.uVersion, ulCmd));
|
---|
| 399 | return EINVAL;
|
---|
| 400 | }
|
---|
| 401 | cbReq = RT_MAX(Hdr.cbIn, Hdr.cbOut);
|
---|
| 402 | if (RT_UNLIKELY( Hdr.cbIn < sizeof(Hdr)
|
---|
| 403 | || (Hdr.cbOut < sizeof(Hdr) && Hdr.cbOut != 0)
|
---|
| 404 | || cbReq > _1M*16))
|
---|
| 405 | {
|
---|
| 406 | LogRel(("vgdrvFreeBSDIOCtlSlow: max(%#x,%#x); ulCmd=%#lx\n", Hdr.cbIn, Hdr.cbOut, ulCmd));
|
---|
| 407 | return EINVAL;
|
---|
| 408 | }
|
---|
[7549] | 409 |
|
---|
[68581] | 410 | /*
|
---|
| 411 | * Allocate buffer and copy in the data.
|
---|
| 412 | */
|
---|
| 413 | pHdr = (PVBGLREQHDR)RTMemTmpAlloc(cbReq);
|
---|
| 414 | if (RT_UNLIKELY(!pHdr))
|
---|
| 415 | {
|
---|
| 416 | LogRel(("vgdrvFreeBSDIOCtlSlow: failed to allocate buffer of %d bytes; ulCmd=%#lx\n", cbReq, ulCmd));
|
---|
| 417 | return ENOMEM;
|
---|
| 418 | }
|
---|
| 419 | rc = copyin(pvUser, pHdr, Hdr.cbIn);
|
---|
| 420 | if (RT_UNLIKELY(rc))
|
---|
| 421 | {
|
---|
| 422 | LogRel(("vgdrvFreeBSDIOCtlSlow: copyin(%p,%p,%#x) -> %#x; ulCmd=%#lx\n",
|
---|
| 423 | pvUser, pHdr, Hdr.cbIn, rc, ulCmd));
|
---|
| 424 | RTMemTmpFree(pHdr);
|
---|
| 425 | return rc;
|
---|
| 426 | }
|
---|
| 427 | if (Hdr.cbIn < cbReq)
|
---|
| 428 | RT_BZERO((uint8_t *)pHdr + Hdr.cbIn, cbReq - Hdr.cbIn);
|
---|
[7549] | 429 | }
|
---|
[68581] | 430 | else
|
---|
[7549] | 431 | {
|
---|
[68581] | 432 | Log(("vgdrvFreeBSDIOCtlSlow: huh? cbReq=%#x ulCmd=%#lx\n", cbReq, ulCmd));
|
---|
[7549] | 433 | return EINVAL;
|
---|
| 434 | }
|
---|
| 435 |
|
---|
| 436 | /*
|
---|
[68581] | 437 | * Process the IOCtl.
|
---|
[7549] | 438 | */
|
---|
[68581] | 439 | int rc = VGDrvCommonIoCtl(ulCmd, &g_DevExt, pSession, pHdr, cbReq);
|
---|
| 440 | if (RT_LIKELY(!rc))
|
---|
[7549] | 441 | {
|
---|
[68581] | 442 | /*
|
---|
| 443 | * If unbuffered, copy back the result before returning.
|
---|
| 444 | */
|
---|
| 445 | if (pvUser)
|
---|
| 446 | {
|
---|
| 447 | uint32_t cbOut = pHdr->cbOut;
|
---|
| 448 | if (cbOut > cbReq)
|
---|
| 449 | {
|
---|
| 450 | LogRel(("vgdrvFreeBSDIOCtlSlow: too much output! %#x > %#x; uCmd=%#lx!\n", cbOut, cbReq, ulCmd));
|
---|
| 451 | cbOut = cbReq;
|
---|
| 452 | }
|
---|
| 453 | rc = copyout(pHdr, pvUser, cbOut);
|
---|
| 454 | if (RT_UNLIKELY(rc))
|
---|
| 455 | LogRel(("vgdrvFreeBSDIOCtlSlow: copyout(%p,%p,%#x) -> %d; uCmd=%#lx!\n", pHdr, pvUser, cbOut, rc, ulCmd));
|
---|
[7549] | 456 |
|
---|
[68581] | 457 | Log(("vgdrvFreeBSDIOCtlSlow: returns %d / %d ulCmd=%lx\n", 0, pHdr->rc, ulCmd));
|
---|
| 458 |
|
---|
| 459 | /* cleanup */
|
---|
| 460 | RTMemTmpFree(pHdr);
|
---|
| 461 | }
|
---|
[7549] | 462 | }
|
---|
[68581] | 463 | else
|
---|
[7549] | 464 | {
|
---|
[68581] | 465 | /*
|
---|
| 466 | * The request failed, just clean up.
|
---|
| 467 | */
|
---|
| 468 | if (pvUser)
|
---|
| 469 | RTMemTmpFree(pHdr);
|
---|
| 470 |
|
---|
| 471 | Log(("vgdrvFreeBSDIOCtlSlow: ulCmd=%lx pData=%p failed, rc=%d\n", ulCmd, pvData, rc));
|
---|
| 472 | rc = EINVAL;
|
---|
[7549] | 473 | }
|
---|
| 474 |
|
---|
[68581] | 475 | return rc;
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 |
|
---|
| 479 | /**
|
---|
| 480 | * @note This code is duplicated on other platforms with variations, so please
|
---|
| 481 | * keep them all up to date when making changes!
|
---|
| 482 | */
|
---|
| 483 | int VBOXCALL VBoxGuestIDC(void *pvSession, uintptr_t uReq, PVBGLREQHDR pReqHdr, size_t cbReq)
|
---|
| 484 | {
|
---|
[7549] | 485 | /*
|
---|
[68581] | 486 | * Simple request validation (common code does the rest).
|
---|
[7549] | 487 | */
|
---|
[68581] | 488 | int rc;
|
---|
| 489 | if ( RT_VALID_PTR(pReqHdr)
|
---|
| 490 | && cbReq >= sizeof(*pReqHdr))
|
---|
[7549] | 491 | {
|
---|
[68581] | 492 | /*
|
---|
| 493 | * All requests except the connect one requires a valid session.
|
---|
| 494 | */
|
---|
| 495 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pvSession;
|
---|
| 496 | if (pSession)
|
---|
[7549] | 497 | {
|
---|
[68581] | 498 | if ( RT_VALID_PTR(pSession)
|
---|
| 499 | && pSession->pDevExt == &g_DevExt)
|
---|
| 500 | rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq);
|
---|
| 501 | else
|
---|
| 502 | rc = VERR_INVALID_HANDLE;
|
---|
[7549] | 503 | }
|
---|
[68581] | 504 | else if (uReq == VBGL_IOCTL_IDC_CONNECT)
|
---|
[7549] | 505 | {
|
---|
[68581] | 506 | rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession);
|
---|
| 507 | if (RT_SUCCESS(rc))
|
---|
[7549] | 508 | {
|
---|
[68581] | 509 | rc = VGDrvCommonIoCtl(uReq, &g_DevExt, pSession, pReqHdr, cbReq);
|
---|
| 510 | if (RT_FAILURE(rc))
|
---|
| 511 | VGDrvCommonCloseSession(&g_DevExt, pSession);
|
---|
[7549] | 512 | }
|
---|
| 513 | }
|
---|
[68581] | 514 | else
|
---|
| 515 | rc = VERR_INVALID_HANDLE;
|
---|
[7549] | 516 | }
|
---|
| 517 | else
|
---|
[68581] | 518 | rc = VERR_INVALID_POINTER;
|
---|
[7549] | 519 | return rc;
|
---|
| 520 | }
|
---|
| 521 |
|
---|
[68581] | 522 |
|
---|
[58113] | 523 | static int vgdrvFreeBSDPoll(struct cdev *pDev, int fEvents, struct thread *td)
|
---|
[7549] | 524 | {
|
---|
[22575] | 525 | int fEventsProcessed;
|
---|
| 526 |
|
---|
[58113] | 527 | LogFlow(("vgdrvFreeBSDPoll: fEvents=%d\n", fEvents));
|
---|
[22575] | 528 |
|
---|
| 529 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pDev->si_drv1;
|
---|
[90794] | 530 | if (RT_UNLIKELY(!RT_VALID_PTR(pSession))) {
|
---|
[58113] | 531 | Log(("vgdrvFreeBSDPoll: no state data for %s\n", devtoname(pDev)));
|
---|
[22575] | 532 | return (fEvents & (POLLHUP|POLLIN|POLLRDNORM|POLLOUT|POLLWRNORM));
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 | uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
|
---|
| 536 | if (pSession->u32MousePosChangedSeq != u32CurSeq)
|
---|
| 537 | {
|
---|
| 538 | fEventsProcessed = fEvents & (POLLIN | POLLRDNORM);
|
---|
| 539 | pSession->u32MousePosChangedSeq = u32CurSeq;
|
---|
| 540 | }
|
---|
| 541 | else
|
---|
| 542 | {
|
---|
| 543 | fEventsProcessed = 0;
|
---|
| 544 |
|
---|
| 545 | selrecord(td, &g_SelInfo);
|
---|
| 546 | }
|
---|
| 547 |
|
---|
| 548 | return fEventsProcessed;
|
---|
| 549 | }
|
---|
| 550 |
|
---|
[58113] | 551 | static int vgdrvFreeBSDWrite(struct cdev *pDev, struct uio *pUio, int fIo)
|
---|
[22575] | 552 | {
|
---|
[7549] | 553 | return 0;
|
---|
| 554 | }
|
---|
| 555 |
|
---|
[58113] | 556 | static int vgdrvFreeBSDRead(struct cdev *pDev, struct uio *pUio, int fIo)
|
---|
[7549] | 557 | {
|
---|
| 558 | return 0;
|
---|
| 559 | }
|
---|
| 560 |
|
---|
[58113] | 561 | static int vgdrvFreeBSDDetach(device_t pDevice)
|
---|
[7549] | 562 | {
|
---|
[22575] | 563 | struct VBoxGuestDeviceState *pState = device_get_softc(pDevice);
|
---|
[7549] | 564 |
|
---|
[22575] | 565 | if (cUsers > 0)
|
---|
| 566 | return EBUSY;
|
---|
| 567 |
|
---|
[8188] | 568 | /*
|
---|
[58113] | 569 | * Reverse what we did in vgdrvFreeBSDAttach.
|
---|
[8188] | 570 | */
|
---|
[58113] | 571 | if (g_vgdrvFreeBSDEHTag != NULL)
|
---|
| 572 | EVENTHANDLER_DEREGISTER(dev_clone, g_vgdrvFreeBSDEHTag);
|
---|
[22575] | 573 |
|
---|
[58113] | 574 | clone_cleanup(&g_pvgdrvFreeBSDClones);
|
---|
[7549] | 575 |
|
---|
[58113] | 576 | vgdrvFreeBSDRemoveIRQ(pDevice, pState);
|
---|
[7549] | 577 |
|
---|
[8188] | 578 | if (pState->pVMMDevMemRes)
|
---|
| 579 | bus_release_resource(pDevice, SYS_RES_MEMORY, pState->iVMMDevMemResId, pState->pVMMDevMemRes);
|
---|
| 580 | if (pState->pIOPortRes)
|
---|
| 581 | bus_release_resource(pDevice, SYS_RES_IOPORT, pState->iIOPortResId, pState->pIOPortRes);
|
---|
| 582 |
|
---|
[58053] | 583 | VGDrvCommonDeleteDevExt(&g_DevExt);
|
---|
[7549] | 584 |
|
---|
| 585 | RTR0Term();
|
---|
| 586 |
|
---|
| 587 | return 0;
|
---|
| 588 | }
|
---|
| 589 |
|
---|
[70066] | 590 |
|
---|
[7549] | 591 | /**
|
---|
| 592 | * Interrupt service routine.
|
---|
| 593 | *
|
---|
| 594 | * @returns Whether the interrupt was from VMMDev.
|
---|
| 595 | * @param pvState Opaque pointer to the device state.
|
---|
| 596 | */
|
---|
[58113] | 597 | static int vgdrvFreeBSDISR(void *pvState)
|
---|
[7549] | 598 | {
|
---|
[58113] | 599 | LogFlow(("vgdrvFreeBSDISR: pvState=%p\n", pvState));
|
---|
[7549] | 600 |
|
---|
[58053] | 601 | bool fOurIRQ = VGDrvCommonISR(&g_DevExt);
|
---|
[7549] | 602 |
|
---|
| 603 | return fOurIRQ ? 0 : 1;
|
---|
| 604 | }
|
---|
| 605 |
|
---|
[58053] | 606 | void VGDrvNativeISRMousePollEvent(PVBOXGUESTDEVEXT pDevExt)
|
---|
[22575] | 607 | {
|
---|
[58113] | 608 | LogFlow(("VGDrvNativeISRMousePollEvent:\n"));
|
---|
[22575] | 609 |
|
---|
| 610 | /*
|
---|
| 611 | * Wake up poll waiters.
|
---|
| 612 | */
|
---|
| 613 | selwakeup(&g_SelInfo);
|
---|
| 614 | }
|
---|
| 615 |
|
---|
[70066] | 616 |
|
---|
| 617 | bool VGDrvNativeProcessOption(PVBOXGUESTDEVEXT pDevExt, const char *pszName, const char *pszValue)
|
---|
| 618 | {
|
---|
| 619 | RT_NOREF(pDevExt); RT_NOREF(pszName); RT_NOREF(pszValue);
|
---|
| 620 | return false;
|
---|
| 621 | }
|
---|
| 622 |
|
---|
| 623 |
|
---|
[7549] | 624 | /**
|
---|
| 625 | * Sets IRQ for VMMDev.
|
---|
| 626 | *
|
---|
| 627 | * @returns FreeBSD error code.
|
---|
[8188] | 628 | * @param pDevice Pointer to the device info structure.
|
---|
[7549] | 629 | * @param pvState Pointer to the state info structure.
|
---|
| 630 | */
|
---|
[58113] | 631 | static int vgdrvFreeBSDAddIRQ(device_t pDevice, void *pvState)
|
---|
[7549] | 632 | {
|
---|
[8188] | 633 | int iResId = 0;
|
---|
[7549] | 634 | int rc = 0;
|
---|
| 635 | struct VBoxGuestDeviceState *pState = (struct VBoxGuestDeviceState *)pvState;
|
---|
| 636 |
|
---|
[8188] | 637 | pState->pIrqRes = bus_alloc_resource_any(pDevice, SYS_RES_IRQ, &iResId, RF_SHAREABLE | RF_ACTIVE);
|
---|
[7549] | 638 |
|
---|
| 639 | #if __FreeBSD_version >= 700000
|
---|
[58113] | 640 | rc = bus_setup_intr(pDevice, pState->pIrqRes, INTR_TYPE_BIO | INTR_MPSAFE, NULL, (driver_intr_t *)vgdrvFreeBSDISR, pState,
|
---|
[22575] | 641 | &pState->pfnIrqHandler);
|
---|
[7549] | 642 | #else
|
---|
[58113] | 643 | rc = bus_setup_intr(pDevice, pState->pIrqRes, INTR_TYPE_BIO, (driver_intr_t *)vgdrvFreeBSDISR, pState, &pState->pfnIrqHandler);
|
---|
[7549] | 644 | #endif
|
---|
| 645 |
|
---|
| 646 | if (rc)
|
---|
| 647 | {
|
---|
[8188] | 648 | pState->pfnIrqHandler = NULL;
|
---|
[7549] | 649 | return VERR_DEV_IO_ERROR;
|
---|
| 650 | }
|
---|
| 651 |
|
---|
[8188] | 652 | pState->iIrqResId = iResId;
|
---|
[7549] | 653 |
|
---|
| 654 | return VINF_SUCCESS;
|
---|
| 655 | }
|
---|
| 656 |
|
---|
| 657 | /**
|
---|
| 658 | * Removes IRQ for VMMDev.
|
---|
| 659 | *
|
---|
[8188] | 660 | * @param pDevice Pointer to the device info structure.
|
---|
[7549] | 661 | * @param pvState Opaque pointer to the state info structure.
|
---|
| 662 | */
|
---|
[58113] | 663 | static void vgdrvFreeBSDRemoveIRQ(device_t pDevice, void *pvState)
|
---|
[7549] | 664 | {
|
---|
| 665 | struct VBoxGuestDeviceState *pState = (struct VBoxGuestDeviceState *)pvState;
|
---|
| 666 |
|
---|
[8188] | 667 | if (pState->pIrqRes)
|
---|
[7549] | 668 | {
|
---|
[8188] | 669 | bus_teardown_intr(pDevice, pState->pIrqRes, pState->pfnIrqHandler);
|
---|
| 670 | bus_release_resource(pDevice, SYS_RES_IRQ, 0, pState->pIrqRes);
|
---|
[7549] | 671 | }
|
---|
| 672 | }
|
---|
| 673 |
|
---|
[58113] | 674 | static int vgdrvFreeBSDAttach(device_t pDevice)
|
---|
[7549] | 675 | {
|
---|
[58113] | 676 | int rc;
|
---|
| 677 | int iResId;
|
---|
| 678 | struct VBoxGuestDeviceState *pState;
|
---|
[7549] | 679 |
|
---|
[22575] | 680 | cUsers = 0;
|
---|
| 681 |
|
---|
[7549] | 682 | /*
|
---|
| 683 | * Initialize IPRT R0 driver, which internally calls OS-specific r0 init.
|
---|
| 684 | */
|
---|
| 685 | rc = RTR0Init(0);
|
---|
| 686 | if (RT_FAILURE(rc))
|
---|
| 687 | {
|
---|
| 688 | LogFunc(("RTR0Init failed.\n"));
|
---|
| 689 | return ENXIO;
|
---|
| 690 | }
|
---|
| 691 |
|
---|
[8188] | 692 | pState = device_get_softc(pDevice);
|
---|
[7549] | 693 |
|
---|
| 694 | /*
|
---|
[8188] | 695 | * Allocate I/O port resource.
|
---|
[7549] | 696 | */
|
---|
[8188] | 697 | iResId = PCIR_BAR(0);
|
---|
| 698 | pState->pIOPortRes = bus_alloc_resource_any(pDevice, SYS_RES_IOPORT, &iResId, RF_ACTIVE);
|
---|
[22575] | 699 | pState->uIOPortBase = rman_get_start(pState->pIOPortRes);
|
---|
[8188] | 700 | pState->iIOPortResId = iResId;
|
---|
| 701 | if (pState->uIOPortBase)
|
---|
[7549] | 702 | {
|
---|
| 703 | /*
|
---|
[8188] | 704 | * Map the MMIO region.
|
---|
[7549] | 705 | */
|
---|
[8188] | 706 | iResId = PCIR_BAR(1);
|
---|
| 707 | pState->pVMMDevMemRes = bus_alloc_resource_any(pDevice, SYS_RES_MEMORY, &iResId, RF_ACTIVE);
|
---|
| 708 | pState->VMMDevMemHandle = rman_get_bushandle(pState->pVMMDevMemRes);
|
---|
[22575] | 709 | pState->VMMDevMemSize = rman_get_size(pState->pVMMDevMemRes);
|
---|
[8188] | 710 |
|
---|
[58113] | 711 | pState->pMMIOBase = rman_get_virtual(pState->pVMMDevMemRes);
|
---|
| 712 | pState->iVMMDevMemResId = iResId;
|
---|
[8188] | 713 | if (pState->pMMIOBase)
|
---|
[7549] | 714 | {
|
---|
| 715 | /*
|
---|
[8250] | 716 | * Call the common device extension initializer.
|
---|
[7549] | 717 | */
|
---|
[58053] | 718 | rc = VGDrvCommonInitDevExt(&g_DevExt, pState->uIOPortBase,
|
---|
[100267] | 719 | NULL /*pvMmioReq*/,
|
---|
[58053] | 720 | pState->pMMIOBase, pState->VMMDevMemSize,
|
---|
[34521] | 721 | #if ARCH_BITS == 64
|
---|
[58053] | 722 | VBOXOSTYPE_FreeBSD_x64,
|
---|
[34521] | 723 | #else
|
---|
[58053] | 724 | VBOXOSTYPE_FreeBSD,
|
---|
[34521] | 725 | #endif
|
---|
[58053] | 726 | VMMDEV_EVENT_MOUSE_POSITION_CHANGED);
|
---|
[8188] | 727 | if (RT_SUCCESS(rc))
|
---|
[7549] | 728 | {
|
---|
| 729 | /*
|
---|
[8250] | 730 | * Add IRQ of VMMDev.
|
---|
[7549] | 731 | */
|
---|
[58113] | 732 | rc = vgdrvFreeBSDAddIRQ(pDevice, pState);
|
---|
[7549] | 733 | if (RT_SUCCESS(rc))
|
---|
| 734 | {
|
---|
| 735 | /*
|
---|
[70085] | 736 | * Read host configuration.
|
---|
| 737 | */
|
---|
| 738 | VGDrvCommonProcessOptionsFromHost(&g_DevExt);
|
---|
| 739 |
|
---|
| 740 | /*
|
---|
[8188] | 741 | * Configure device cloning.
|
---|
[7549] | 742 | */
|
---|
[58113] | 743 | clone_setup(&g_pvgdrvFreeBSDClones);
|
---|
| 744 | g_vgdrvFreeBSDEHTag = EVENTHANDLER_REGISTER(dev_clone, vgdrvFreeBSDClone, 0, 1000);
|
---|
| 745 | if (g_vgdrvFreeBSDEHTag)
|
---|
[7549] | 746 | {
|
---|
[8188] | 747 | printf(DEVICE_NAME ": loaded successfully\n");
|
---|
[7549] | 748 | return 0;
|
---|
| 749 | }
|
---|
[8188] | 750 |
|
---|
[8250] | 751 | printf(DEVICE_NAME ": EVENTHANDLER_REGISTER(dev_clone,,,) failed\n");
|
---|
[58113] | 752 | clone_cleanup(&g_pvgdrvFreeBSDClones);
|
---|
| 753 | vgdrvFreeBSDRemoveIRQ(pDevice, pState);
|
---|
[7549] | 754 | }
|
---|
| 755 | else
|
---|
[58113] | 756 | printf((DEVICE_NAME ": VGDrvCommonInitDevExt failed.\n"));
|
---|
[58053] | 757 | VGDrvCommonDeleteDevExt(&g_DevExt);
|
---|
[7549] | 758 | }
|
---|
| 759 | else
|
---|
[58113] | 760 | printf((DEVICE_NAME ": vgdrvFreeBSDAddIRQ failed.\n"));
|
---|
[7549] | 761 | }
|
---|
| 762 | else
|
---|
[58113] | 763 | printf((DEVICE_NAME ": MMIO region setup failed.\n"));
|
---|
[7549] | 764 | }
|
---|
| 765 | else
|
---|
[58113] | 766 | printf((DEVICE_NAME ": IOport setup failed.\n"));
|
---|
[7549] | 767 |
|
---|
| 768 | RTR0Term();
|
---|
| 769 | return ENXIO;
|
---|
| 770 | }
|
---|
| 771 |
|
---|
[58113] | 772 | static int vgdrvFreeBSDProbe(device_t pDevice)
|
---|
[7549] | 773 | {
|
---|
[8188] | 774 | if ((pci_get_vendor(pDevice) == VMMDEV_VENDORID) && (pci_get_device(pDevice) == VMMDEV_DEVICEID))
|
---|
[7549] | 775 | return 0;
|
---|
| 776 |
|
---|
| 777 | return ENXIO;
|
---|
| 778 | }
|
---|
| 779 |
|
---|
[58113] | 780 | static device_method_t vgdrvFreeBSDMethods[] =
|
---|
[7549] | 781 | {
|
---|
| 782 | /* Device interface. */
|
---|
[58113] | 783 | DEVMETHOD(device_probe, vgdrvFreeBSDProbe),
|
---|
| 784 | DEVMETHOD(device_attach, vgdrvFreeBSDAttach),
|
---|
| 785 | DEVMETHOD(device_detach, vgdrvFreeBSDDetach),
|
---|
[7549] | 786 | {0,0}
|
---|
| 787 | };
|
---|
| 788 |
|
---|
[58113] | 789 | static driver_t vgdrvFreeBSDDriver =
|
---|
[7549] | 790 | {
|
---|
| 791 | DEVICE_NAME,
|
---|
[58113] | 792 | vgdrvFreeBSDMethods,
|
---|
[7549] | 793 | sizeof(struct VBoxGuestDeviceState),
|
---|
| 794 | };
|
---|
| 795 |
|
---|
[58113] | 796 | static devclass_t vgdrvFreeBSDClass;
|
---|
[7549] | 797 |
|
---|
[58113] | 798 | DRIVER_MODULE(vboxguest, pci, vgdrvFreeBSDDriver, vgdrvFreeBSDClass, 0, 0);
|
---|
[7549] | 799 | MODULE_VERSION(vboxguest, 1);
|
---|
| 800 |
|
---|