/** @file * VBoxGuest - VirtualBox Guest Additions Driver Interface. (ADD,DEV) * * @note This file is used by 16-bit compilers too (OpenWatcom). */ /* * Copyright (C) 2006-2022 Oracle and/or its affiliates. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef VBOX_INCLUDED_VBoxGuest_h #define VBOX_INCLUDED_VBoxGuest_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include #include #include #include /** @defgroup grp_vboxguest VirtualBox Guest Additions Device Driver * * Also know as VBoxGuest. * * @{ */ /** @defgroup grp_vboxguest_ioc VirtualBox Guest Additions Driver Interface * * @note This is considered internal in ring-3, please use the VbglR3 functions. * * - I/O controls for user and/or kernel mode starts at 0. * - IDC specific requests descends from 63. * - Bits 7 and 6 are currently reserved for future hacks. * * @remarks When creating new IOCtl interfaces keep in mind that not all OSes supports * reporting back the output size. (This got messed up a little bit in VBoxDrv.) * * The request size is also a little bit tricky as it's passed as part of the * request code on unix. The size field is 14 bits on Linux, 12 bits on *BSD, * 13 bits Darwin, and 8-bits on Solaris. All the BSDs and Darwin kernels * will make use of the size field, while Linux and Solaris will not. We're of * course using the size to validate and/or map/lock the request, so it has * to be valid. * * For Solaris we will have to do something special though, 255 isn't * sufficient for all we need. A 4KB restriction (BSD) is probably not * too problematic (yet) as a general one. * * More info can be found in SUPDRVIOC.h and related sources. * * @remarks If adding interfaces that only has input or only has output, some new macros * needs to be created so the most efficient IOCtl data buffering method can be * used. * * @{ */ #if !defined(IN_RC) && !defined(IN_RING0_AGNOSTIC) /** Fictive start address of the hypervisor physical memory for MmMapIoSpace. */ #define VBOXGUEST_HYPERVISOR_PHYSICAL_START UINT32_C(0xf8000000) #ifdef RT_OS_DARWIN /** Cookie used to fend off some unwanted clients to the IOService. */ # define VBOXGUEST_DARWIN_IOSERVICE_COOKIE UINT32_C(0x56426f78) /* 'VBox' */ #endif #if defined(RT_OS_WINDOWS) # ifndef CTL_CODE # include # endif /* Automatic buffering, size not encoded. */ # define VBGL_IOCTL_CODE_SIZE(Function, Size) CTL_CODE(FILE_DEVICE_UNKNOWN, 2048 + (Function), METHOD_BUFFERED, FILE_WRITE_ACCESS) # define VBGL_IOCTL_CODE_BIG(Function) CTL_CODE(FILE_DEVICE_UNKNOWN, 2048 + (Function), METHOD_BUFFERED, FILE_WRITE_ACCESS) # define VBGL_IOCTL_CODE_FAST(Function) CTL_CODE(FILE_DEVICE_UNKNOWN, 2048 + (Function), METHOD_NEITHER, FILE_WRITE_ACCESS) # define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) # define VBOXGUEST_DEVICE_NAME "\\\\.\\VBoxGuest" /** The support service name. */ # define VBOXGUEST_SERVICE_NAME "VBoxGuest" /** Global name for Win2k+ */ # define VBOXGUEST_DEVICE_NAME_GLOBAL "\\\\.\\Global\\VBoxGuest" /** Win32 driver name */ # define VBOXGUEST_DEVICE_NAME_NT L"\\Device\\VBoxGuest" /** Device name. */ # define VBOXGUEST_DEVICE_NAME_DOS L"\\DosDevices\\VBoxGuest" #elif defined(RT_OS_OS2) /* No automatic buffering, size not encoded. */ # define VBGL_IOCTL_CATEGORY 0xc2 # define VBGL_IOCTL_CODE_SIZE(Function, Size) ((unsigned char)(Function)) # define VBGL_IOCTL_CODE_BIG(Function) ((unsigned char)(Function)) # define VBGL_IOCTL_CATEGORY_FAST 0xc3 /**< Also defined in VBoxGuestA-os2.asm. */ # define VBGL_IOCTL_CODE_FAST(Function) ((unsigned char)(Function)) # define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) # define VBOXGUEST_DEVICE_NAME "\\Dev\\VBoxGst$" /** Short device name for AttachDD. * @note Case sensitive. Must match what VBoxGuestA-os2.asm says! */ # define VBOXGUEST_DEVICE_NAME_SHORT "vboxgst$" #elif defined(RT_OS_SOLARIS) /* No automatic buffering, size limited to 255 bytes => use VBGLBIGREQ for everything. */ # include # define VBGL_IOCTL_CODE_SIZE(Function, Size) ((uintptr_t)(_IOWRN('V', (Function), sizeof(VBGLREQHDR)))) # define VBGL_IOCTL_CODE_BIG(Function) _IOWRN('V', (Function), sizeof(VBGLREQHDR)) # define VBGL_IOCTL_CODE_FAST(Function) _IO( 'F', (Function)) # define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) # define VBGL_IOCTL_IS_FAST(a_uIOCtl) ( ((a_uIOCtl) & 0x0000ff00) == ('F' << 8) ) #elif defined(RT_OS_LINUX) /* No automatic buffering, size limited to 16KB. */ # include # define VBGL_IOCTL_CODE_SIZE(Function, Size) _IOC(_IOC_READ | _IOC_WRITE, 'V', (Function), (Size)) # define VBGL_IOCTL_CODE_BIG(Function) _IO('V', (Function)) # define VBGL_IOCTL_CODE_FAST(Function) _IO('F', (Function)) # define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) _IOC_NR((a_uIOCtl)) # define VBOXGUEST_USER_DEVICE_NAME "/dev/vboxuser" #elif defined(RT_OS_HAIKU) /* No automatic buffering, size not encoded. */ /** @todo do something better */ # define VBGL_IOCTL_CODE_SIZE(Function, Size) (0x56420000 | (Function)) # define VBGL_IOCTL_CODE_BIG(Function) (0x56420000 | (Function)) # define VBGL_IOCTL_CODE_FAST(Function) (0x56420000 | (Function)) # define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) (a_uIOCtl) # define VBOXGUEST_DEVICE_NAME "/dev/misc/vboxguest" #else /* BSD Like */ /* Automatic buffering, size limited to 4KB on *BSD and 8KB on Darwin - commands the limit, 4KB. */ # include # define VBGL_IOCTL_CODE_SIZE(Function, Size) _IOC(IOC_INOUT, 'V', (Function), (Size)) # define VBGL_IOCTL_CODE_BIG(Function) _IO('V', (Function)) # define VBGL_IOCTL_CODE_FAST(Function) _IO('F', (Function)) # define VBGL_IOCTL_CODE_STRIPPED(a_uIOCtl) ((a_uIOCtl) & ~(_IOC(0,0,0,IOCPARM_MASK))) # define VBGL_IOCTL_IS_FAST(a_uIOCtl) ( IOCGROUP(a_uIOCtl) == 'F' ) # if defined(RT_OS_DARWIN) # define VBOXGUEST_DEVICE_NAME "/dev/vboxguest" # define VBOXGUEST_USER_DEVICE_NAME "/dev/vboxguestu" # endif #endif /** @todo It would be nice if we could have two defines without paths. */ /** @def VBOXGUEST_DEVICE_NAME * The support device name. */ #ifndef VBOXGUEST_DEVICE_NAME /* PORTME */ # define VBOXGUEST_DEVICE_NAME "/dev/vboxguest" #endif /** @def VBOXGUEST_USER_DEVICE_NAME * The support device name of the user accessible device node. */ #ifndef VBOXGUEST_USER_DEVICE_NAME # define VBOXGUEST_USER_DEVICE_NAME VBOXGUEST_DEVICE_NAME #endif /** * The VBoxGuest I/O control version. * * As usual, the high word contains the major version and changes to it * signifies incompatible changes. * * The lower word is the minor version number, it is increased when new * functions are added or existing changed in a backwards compatible manner. */ #define VBGL_IOC_VERSION UINT32_C(0x00010000) /** @name VBGL_IOCTL_DRIVER_INFO * Adjust and get driver information. * * @note May switch the session to a backwards compatible interface version if * uClientVersion indicates older client code. * * @{ */ #define VBGL_IOCTL_DRIVER_VERSION_INFO VBGL_IOCTL_CODE_SIZE(0, VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE) #define VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE sizeof(VBGLIOCDRIVERVERSIONINFO) #define VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE_IN RT_UOFFSET_AFTER(VBGLIOCDRIVERVERSIONINFO, u.In) #define VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE_OUT sizeof(VBGLIOCDRIVERVERSIONINFO) typedef struct VBGLIOCDRIVERVERSIONINFO { /** The header. */ VBGLREQHDR Hdr; union { struct { /** The requested interface version number (VBGL_IOC_VERSION). */ uint32_t uReqVersion; /** The minimum interface version number * (typically the major version part of VBGL_IOC_VERSION). */ uint32_t uMinVersion; /** Reserved, MBZ. */ uint32_t uReserved1; /** Reserved, MBZ. */ uint32_t uReserved2; } In; struct { /** Interface version for this session (typically VBGL_IOC_VERSION). */ uint32_t uSessionVersion; /** The version of the IDC interface (VBGL_IOC_VERSION). */ uint32_t uDriverVersion; /** The SVN revision of the driver. * This will be set to 0 if not compiled into the driver. */ uint32_t uDriverRevision; /** Reserved \#1 (will be returned as zero until defined). */ uint32_t uReserved1; /** Reserved \#2 (will be returned as zero until defined). */ uint32_t uReserved2; } Out; } u; } VBGLIOCDRIVERVERSIONINFO, RT_FAR *PVBGLIOCDRIVERVERSIONINFO; AssertCompileSize(VBGLIOCDRIVERVERSIONINFO, 24 + 20); #if !defined(__GNUC__) /* Some GCC versions can't handle the complicated RT_UOFFSET_AFTER macro, it seems. */ \ && (!defined(RT_OS_OS2) || (!defined(__IBMC__) && !defined(__IBMCPP__) && (!defined(__WATCOMC__) || !defined(__cplusplus)))) AssertCompile(VBGL_IOCTL_DRIVER_VERSION_INFO_SIZE_IN == 24 + 16); #endif /** @} */ /** @name VBGL_IOCTL_GET_PORT_INFO * Query VMMDev I/O port region and MMIO mapping address. * @remarks Ring-0 only. * @{ */ #define VBGL_IOCTL_GET_VMMDEV_IO_INFO VBGL_IOCTL_CODE_SIZE(1, VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE) #define VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE sizeof(VBGLIOCGETVMMDEVIOINFO) #define VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE_IN sizeof(VBGLREQHDR) #define VBGL_IOCTL_GET_VMMDEV_IO_INFO_SIZE_OUT sizeof(VBGLIOCGETVMMDEVIOINFO) typedef struct VBGLIOCGETVMMDEVIOINFO { /** The header. */ VBGLREQHDR Hdr; union { struct { /** The MMIO mapping. NULL if no MMIO region. */ struct VMMDevMemory volatile RT_FAR *pvVmmDevMapping; /** The I/O port address. */ RTIOPORT IoPort; /** Padding, ignore. */ RTIOPORT auPadding[HC_ARCH_BITS == 64 ? 3 : 1]; } Out; } u; } VBGLIOCGETVMMDEVIOINFO, RT_FAR *PVBGLIOCGETVMMDEVIOINFO; AssertCompileSize(VBGLIOCGETVMMDEVIOINFO, 24 + (HC_ARCH_BITS == 64 ? 16 : 8)); /** @} */ /** @name VBGL_IOCTL_VMMDEV_REQUEST * IOCTL to VBoxGuest to perform a VMM Device request less than 1KB in size. * @{ */ #define VBGL_IOCTL_VMMDEV_REQUEST(a_cb) VBGL_IOCTL_CODE_SIZE(2, (a_cb)) /** @} */ /** @name VBGL_IOCTL_VMMDEV_REQUEST_BIG * IOCTL to VBoxGuest to perform a VMM Device request that can 1KB or larger. * @{ */ #define VBGL_IOCTL_VMMDEV_REQUEST_BIG VBGL_IOCTL_CODE_BIG(3) /** @} */ #ifdef VBOX_WITH_HGCM /** @name VBGL_IOCTL_HGCM_CONNECT * Connect to a HGCM service. * @{ */ # define VBGL_IOCTL_HGCM_CONNECT VBGL_IOCTL_CODE_SIZE(4, VBGL_IOCTL_HGCM_CONNECT_SIZE) # define VBGL_IOCTL_HGCM_CONNECT_SIZE sizeof(VBGLIOCHGCMCONNECT) # define VBGL_IOCTL_HGCM_CONNECT_SIZE_IN sizeof(VBGLIOCHGCMCONNECT) # define VBGL_IOCTL_HGCM_CONNECT_SIZE_OUT RT_UOFFSET_AFTER(VBGLIOCHGCMCONNECT, u.Out) typedef struct VBGLIOCHGCMCONNECT { /** The header. */ VBGLREQHDR Hdr; union { struct { HGCMServiceLocation Loc; } In; struct { uint32_t idClient; } Out; } u; } VBGLIOCHGCMCONNECT, RT_FAR *PVBGLIOCHGCMCONNECT; AssertCompileSize(VBGLIOCHGCMCONNECT, 24 + 132); #if !defined(__GNUC__) /* Some GCC versions can't handle the complicated RT_UOFFSET_AFTER macro, it seems. */ \ && (!defined(RT_OS_OS2) || (!defined(__IBMC__) && !defined(__IBMCPP__) && (!defined(__WATCOMC__) || !defined(__cplusplus)))) AssertCompile(VBGL_IOCTL_HGCM_CONNECT_SIZE_OUT == 24 + 4); #endif /** @} */ /** @name VBGL_IOCTL_HGCM_DISCONNECT * Disconnect from a HGCM service. * @{ */ # define VBGL_IOCTL_HGCM_DISCONNECT VBGL_IOCTL_CODE_SIZE(5, VBGL_IOCTL_HGCM_DISCONNECT_SIZE) # define VBGL_IOCTL_HGCM_DISCONNECT_SIZE sizeof(VBGLIOCHGCMDISCONNECT) # define VBGL_IOCTL_HGCM_DISCONNECT_SIZE_IN sizeof(VBGLIOCHGCMDISCONNECT) # define VBGL_IOCTL_HGCM_DISCONNECT_SIZE_OUT sizeof(VBGLREQHDR) /** @note This is also used by a VbglR0 API. */ typedef struct VBGLIOCHGCMDISCONNECT { /** The header. */ VBGLREQHDR Hdr; union { struct { uint32_t idClient; } In; } u; } VBGLIOCHGCMDISCONNECT, RT_FAR *PVBGLIOCHGCMDISCONNECT; AssertCompileSize(VBGLIOCHGCMDISCONNECT, 24 + 4); /** @} */ /** @name VBGL_IOCTL_HGCM_CALL, VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA * * Make a call to a HGCM service. There are several variations here. * * The VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA variation is for other drivers (like * the graphics ones) passing on requests from user land that contains user * data. These calls are always interruptible. * * @{ */ # define VBGL_IOCTL_HGCM_CALL_32(a_cb) VBGL_IOCTL_CODE_SIZE(6, (a_cb)) # define VBGL_IOCTL_HGCM_CALL_64(a_cb) VBGL_IOCTL_CODE_SIZE(7, (a_cb)) # if ARCH_BITS == 64 # define VBGL_IOCTL_HGCM_CALL(a_cb) VBGL_IOCTL_HGCM_CALL_64(a_cb) # else # define VBGL_IOCTL_HGCM_CALL(a_cb) VBGL_IOCTL_HGCM_CALL_32(a_cb) # endif # define VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA(a_cb) VBGL_IOCTL_CODE_SIZE(8, (a_cb)) /** @} */ /** @name VBGL_IOCTL_IDC_HGCM_FAST_CALL * * Variant of VBGL_IOCTL_HGCM_CALL for drivers that submits the request as-is to * the host and handles the waiting, the caller does all the rest. * * @note ring-0 only. * @note Size is not encoded in the I/O control code. * @{ */ #define VBGL_IOCTL_IDC_HGCM_FAST_CALL VBGL_IOCTL_CODE_SIZE(61, sizeof(VBGLIOCIDCHGCMFASTCALL)) #define VBGL_IOCTL_IDC_HGCM_FAST_CALL_SIZE(a_cb) (a_cb) #define VBGL_IOCTL_IDC_HGCM_FAST_CALL_SIZE_IN(a_cb) (a_cb) #define VBGL_IOCTL_IDC_HGCM_FAST_CALL_SIZE_OUT(a_cb) (a_cb) #pragma pack(4) /* Want it to fit nicely with the 44 byte VMMDevHGCMCall and optimally align 64-bit parameters structures. */ typedef struct VBGLIOCIDCHGCMFASTCALL { /** The header. */ VBGLREQHDR Hdr; /** The physical address of the following VMMDevHGCMCall structure. */ RTGCPHYS32 GCPhysReq; /** Set if interruptible. */ bool fInterruptible; /** Reserved. */ uint8_t abReserved0[3]; uint64_t uTimestamp[2]; uint8_t abReserved1[4]; /* After this structure follows a VMMDevHGCMCall strcuture (44 bytes), then zero or more HGCMFunctionParameter structures (12 or 16 bytes), and finally page lists and embedded buffers. */ } VBGLIOCIDCHGCMFASTCALL, RT_FAR *PVBGLIOCIDCHGCMFASTCALL; #pragma pack() AssertCompileSize(VBGLIOCIDCHGCMFASTCALL, /* 24 + 4 + 1 + 3 + 2*8 + 4 = 0x34 (52) = */ 0x34); /** * Macro for initializing VBGLIOCIDCHGCMFASTCALL and the following * VMMDevHGCMCall structures. * * @param a_pHdr The request header to initialize. * @param a_HdrPhys The 32-bit physical address corresponding to @a a_pHdr. * @param a_pCall Pointer to the VMMDevHGCMCall structure. * @param a_idClient The HGCM client ID. * @param a_uFunction The HGCM function number. * @param a_cParms The number of parameters following @a a_pCall. * @param a_cbReq The size of the whole request. */ #define VBGLIOCIDCHGCMFASTCALL_INIT(a_pHdr, a_HdrPhys, a_pCall, a_idClient, a_uFunction, a_cParms, a_cbReq) \ do { \ Assert((uintptr_t)(a_pHdr) + sizeof(VBGLIOCIDCHGCMFASTCALL) == (uintptr_t)(a_pCall)); \ VBGLREQHDR_INIT_EX(&(a_pHdr)->Hdr, a_cbReq, a_cbReq); \ pReq->Hdr.GCPhysReq = (a_HdrPhys) + sizeof(VBGLIOCIDCHGCMFASTCALL); \ pReq->Hdr.fInterruptible = false; \ \ (a_pCall)->header.header.size = (a_cbReq) - sizeof(VBGLIOCIDCHGCMFASTCALL); \ (a_pCall)->header.header.version = VBGLREQHDR_VERSION; \ (a_pCall)->header.header.requestType= (ARCH_BITS == 64 ? VMMDevReq_HGCMCall64 : VMMDevReq_HGCMCall32); \ (a_pCall)->header.header.rc = VERR_INTERNAL_ERROR; \ (a_pCall)->header.header.reserved1 = 0; \ (a_pCall)->header.header.fRequestor = VMMDEV_REQUESTOR_KERNEL | VMMDEV_REQUESTOR_USR_DRV_OTHER \ | VMMDEV_REQUESTOR_CON_DONT_KNOW | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN; \ (a_pCall)->header.fu32Flags = 0; \ (a_pCall)->header.result = VERR_INTERNAL_ERROR; \ (a_pCall)->u32ClientID = (a_idClient); \ (a_pCall)->u32Function = (a_uFunction); \ (a_pCall)->cParms = (a_cParms); \ } while (0) /** @} */ #endif /* VBOX_WITH_HGCM */ /** @name VBGL_IOCTL_LOG * IOCTL to VBoxGuest to perform backdoor logging. * @{ */ #define VBOXGUEST_IOCTL_LOG(Size) #define VBGL_IOCTL_LOG(a_cchMsg) VBGL_IOCTL_CODE_BIG(9) #define VBGL_IOCTL_LOG_SIZE(a_cchMsg) (sizeof(VBGLREQHDR) + (a_cchMsg) + 1) #define VBGL_IOCTL_LOG_SIZE_IN(a_cchMsg) (sizeof(VBGLREQHDR) + (a_cchMsg) + 1) #define VBGL_IOCTL_LOG_SIZE_OUT sizeof(VBGLREQHDR) typedef struct VBGLIOCLOG { /** The header. */ VBGLREQHDR Hdr; union { struct { /** The log message. * The length is determined from the input size and zero termination. */ char szMsg[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION]; } In; } u; } VBGLIOCLOG, RT_FAR *PVBGLIOCLOG; /** @} */ /** @name VBGL_IOCTL_WAIT_FOR_EVENTS * Wait for a VMMDev host event notification. * @{ */ #define VBGL_IOCTL_WAIT_FOR_EVENTS VBGL_IOCTL_CODE_SIZE(10, VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE) #define VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE sizeof(VBGLIOCWAITFOREVENTS) #define VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE_IN sizeof(VBGLIOCWAITFOREVENTS) #define VBGL_IOCTL_WAIT_FOR_EVENTS_SIZE_OUT RT_UOFFSET_AFTER(VBGLIOCWAITFOREVENTS, u.Out) typedef struct VBGLIOCWAITFOREVENTS { /** The header. */ VBGLREQHDR Hdr; union { struct { /** Timeout in milliseconds. */ uint32_t cMsTimeOut; /** Events to wait for. */ uint32_t fEvents; } In; struct { /** Events that occurred. */ uint32_t fEvents; } Out; } u; } VBGLIOCWAITFOREVENTS, RT_FAR *PVBGLIOCWAITFOREVENTS; AssertCompileSize(VBGLIOCWAITFOREVENTS, 24 + 8); /** @} */ /** @name VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS * IOCTL to VBoxGuest to interrupt (cancel) any pending * VBGL_IOCTL_WAIT_FOR_EVENTS and return. * * Handled inside the guest additions and not seen by the host at all. * After calling this, VBGL_IOCTL_WAIT_FOR_EVENTS should no longer be called in * the same session. At the time of writing this is not enforced; at the time * of reading it may be. * @see VBGL_IOCTL_WAIT_FOR_EVENTS * * @{ */ #define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS VBGL_IOCTL_CODE_SIZE(11, VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE) #define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE sizeof(VBGLREQHDR) #define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE_IN sizeof(VBGLREQHDR) #define VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS_SIZE_OUT sizeof(VBGLREQHDR) /** @} */ /** @name VBGL_IOCTL_CHANGE_FILTER_MASK * IOCTL to VBoxGuest to control the event filter mask. * @{ */ #define VBGL_IOCTL_CHANGE_FILTER_MASK VBGL_IOCTL_CODE_SIZE(12, VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE) #define VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE sizeof(VBGLIOCCHANGEFILTERMASK) #define VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE_IN sizeof(VBGLIOCCHANGEFILTERMASK) #define VBGL_IOCTL_CHANGE_FILTER_MASK_SIZE_OUT sizeof(VBGLREQHDR) typedef struct VBGLIOCCHANGEFILTERMASK { /** The header. */ VBGLREQHDR Hdr; union { struct { /** Flags to set. */ uint32_t fOrMask; /** Flags to remove. */ uint32_t fNotMask; } In; } u; } VBGLIOCCHANGEFILTERMASK, RT_FAR *PVBGLIOCCHANGEFILTERMASK; AssertCompileSize(VBGLIOCCHANGEFILTERMASK, 24 + 8); /** @} */ /** @name VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES * IOCTL to for acquiring and releasing guest capabilities. * * This is used for multiple purposes: * 1. By doing @a acquire r3 client application (e.g. VBoxTray) claims it will * use the given session for performing operations like @a seamless or * @a auto-resize, thus, if the application terminates, the driver will * automatically cleanup the caps reported to host, so that host knows guest * does not support them anymore * 2. In a multy-user environment this will not allow r3 applications (like * VBoxTray) running in different user sessions simultaneously to interfere * with each other. An r3 client application (like VBoxTray) is responsible * for Acquiring/Releasing caps properly as needed. * * * VERR_RESOURCE_BUSY is returned if any capabilities in the fOrMask are * currently acquired by some other VBoxGuest session. * * @todo Rename to VBGL_IOCTL_ACQUIRE_GUEST_CAPS * @{ */ #define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES VBGL_IOCTL_CODE_SIZE(13, VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE) #define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE sizeof(VBGLIOCACQUIREGUESTCAPS) #define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE_IN sizeof(VBGLIOCACQUIREGUESTCAPS) #define VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES_SIZE_OUT sizeof(VBGLREQHDR) /** Default operation (full acquire/release). */ #define VBGL_IOC_AGC_FLAGS_DEFAULT UINT32_C(0x00000000) /** Configures VBoxGuest to use the specified caps in Acquire mode, w/o making * any caps acquisition/release. This is only possible to set acquire mode for * caps, but not clear it, so fNotMask is ignored when this flag is set. */ #define VBGL_IOC_AGC_FLAGS_CONFIG_ACQUIRE_MODE UINT32_C(0x00000001) /** Valid flag mask. */ #define VBGL_IOC_AGC_FLAGS_VALID_MASK UINT32_C(0x00000001) typedef struct VBGLIOCACQUIREGUESTCAPS { /** The header. */ VBGLREQHDR Hdr; union { struct { /** Acquire flags (VBGL_IOC_AGC_FLAGS_XXX). */ uint32_t fFlags; /** Guest capabilities to acquire (VMMDEV_GUEST_SUPPORTS_XXX). */ uint32_t fOrMask; /** Guest capabilities to release (VMMDEV_GUEST_SUPPORTS_XXX). */ uint32_t fNotMask; } In; } u; } VBGLIOCACQUIREGUESTCAPS, RT_FAR *PVBGLIOCACQUIREGUESTCAPS; AssertCompileSize(VBGLIOCACQUIREGUESTCAPS, 24 + 12); /** @} */ /** @name VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES * IOCTL to VBoxGuest to set guest capabilities. * @{ */ #define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES VBGL_IOCTL_CODE_SIZE(14, VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE) #define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE sizeof(VBGLIOCSETGUESTCAPS) #define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE_IN sizeof(VBGLIOCSETGUESTCAPS) #define VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES_SIZE_OUT sizeof(VBGLIOCSETGUESTCAPS) typedef struct VBGLIOCSETGUESTCAPS { /** The header. */ VBGLREQHDR Hdr; union { struct { /** The capabilities to set (VMMDEV_GUEST_SUPPORTS_XXX). */ uint32_t fOrMask; /** The capabilities to drop (VMMDEV_GUEST_SUPPORTS_XXX). */ uint32_t fNotMask; } In; struct { /** The capabilities held by the session after the call (VMMDEV_GUEST_SUPPORTS_XXX). */ uint32_t fSessionCaps; /** The capabilities for all the sessions after the call (VMMDEV_GUEST_SUPPORTS_XXX). */ uint32_t fGlobalCaps; } Out; } u; } VBGLIOCSETGUESTCAPS, RT_FAR *PVBGLIOCSETGUESTCAPS; AssertCompileSize(VBGLIOCSETGUESTCAPS, 24 + 8); typedef VBGLIOCSETGUESTCAPS VBoxGuestSetCapabilitiesInfo; /** @} */ /** @name VBGL_IOCTL_SET_MOUSE_STATUS * IOCTL to VBoxGuest to update the mouse status features. * @{ */ #define VBGL_IOCTL_SET_MOUSE_STATUS VBGL_IOCTL_CODE_SIZE(15, VBGL_IOCTL_SET_MOUSE_STATUS_SIZE) #define VBGL_IOCTL_SET_MOUSE_STATUS_SIZE sizeof(VBGLIOCSETMOUSESTATUS) #define VBGL_IOCTL_SET_MOUSE_STATUS_SIZE_IN sizeof(VBGLIOCSETMOUSESTATUS) #define VBGL_IOCTL_SET_MOUSE_STATUS_SIZE_OUT sizeof(VBGLREQHDR) typedef struct VBGLIOCSETMOUSESTATUS { /** The header. */ VBGLREQHDR Hdr; union { struct { /** Mouse status flags (VMMDEV_MOUSE_XXX). */ uint32_t fStatus; } In; } u; } VBGLIOCSETMOUSESTATUS, RT_FAR *PVBGLIOCSETMOUSESTATUS; /** @} */ /** @name VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK * * IOCTL to for setting the mouse driver callback. * @note The callback will be called in interrupt context with the VBoxGuest * device event spinlock held. * @note ring-0 only. * * @{ */ #define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK VBGL_IOCTL_CODE_SIZE(16, VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE) #define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE sizeof(VBGLIOCSETMOUSENOTIFYCALLBACK) #define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE_IN sizeof(VBGLIOCSETMOUSENOTIFYCALLBACK) #define VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK_SIZE_OUT sizeof(VBGLREQHDR) typedef struct VBGLIOCSETMOUSENOTIFYCALLBACK { /** The header. */ VBGLREQHDR Hdr; union { struct { /** Mouse notification callback function. */ PFNVBOXGUESTMOUSENOTIFY pfnNotify; /** The callback argument. */ void RT_FAR *pvUser; } In; } u; } VBGLIOCSETMOUSENOTIFYCALLBACK, RT_FAR *PVBGLIOCSETMOUSENOTIFYCALLBACK; /** @} */ /** @name VBGL_IOCTL_CHECK_BALLOON * IOCTL to VBoxGuest to check memory ballooning. * * The guest kernel module / device driver will ask the host for the current size of * the balloon and adjust the size. Or it will set fHandledInR0 = false and R3 is * responsible for allocating memory and calling R0 (VBGL_IOCTL_CHANGE_BALLOON). * @{ */ #define VBGL_IOCTL_CHECK_BALLOON VBGL_IOCTL_CODE_SIZE(17, VBGL_IOCTL_CHECK_BALLOON_SIZE) #define VBGL_IOCTL_CHECK_BALLOON_SIZE sizeof(VBGLIOCCHECKBALLOON) #define VBGL_IOCTL_CHECK_BALLOON_SIZE_IN sizeof(VBGLREQHDR) #define VBGL_IOCTL_CHECK_BALLOON_SIZE_OUT sizeof(VBGLIOCCHECKBALLOON) typedef struct VBGLIOCCHECKBALLOON { /** The header. */ VBGLREQHDR Hdr; union { struct { /** The size of the balloon in chunks of 1MB. */ uint32_t cBalloonChunks; /** false = handled in R0, no further action required. * true = allocate balloon memory in R3. */ bool fHandleInR3; /** Explicit padding, please ignore. */ bool afPadding[3]; } Out; } u; } VBGLIOCCHECKBALLOON, RT_FAR *PVBGLIOCCHECKBALLOON; AssertCompileSize(VBGLIOCCHECKBALLOON, 24 + 8); typedef VBGLIOCCHECKBALLOON VBoxGuestCheckBalloonInfo; /** @} */ /** @name VBGL_IOCTL_CHANGE_BALLOON * IOCTL to VBoxGuest to supply or revoke one chunk for ballooning. * * The guest kernel module / device driver will lock down supplied memory or * unlock reclaimed memory and then forward the physical addresses of the * changed balloon chunk to the host. * * @{ */ #define VBGL_IOCTL_CHANGE_BALLOON VBGL_IOCTL_CODE_SIZE(18, VBGL_IOCTL_CHANGE_BALLOON_SIZE) #define VBGL_IOCTL_CHANGE_BALLOON_SIZE sizeof(VBGLIOCCHANGEBALLOON) #define VBGL_IOCTL_CHANGE_BALLOON_SIZE_IN sizeof(VBGLIOCCHANGEBALLOON) #define VBGL_IOCTL_CHANGE_BALLOON_SIZE_OUT sizeof(VBGLREQHDR) typedef struct VBGLIOCCHANGEBALLOON { /** The header. */ VBGLREQHDR Hdr; union { struct { /** Address of the chunk (user space address). */ RTR3PTR pvChunk; /** Explicit alignment padding, MBZ. */ uint8_t abPadding[ARCH_BITS == 64 ? 0 + 7 : 4 + 7]; /** true = inflate, false = deflate. */ bool fInflate; } In; } u; } VBGLIOCCHANGEBALLOON, RT_FAR *PVBGLIOCCHANGEBALLOON; AssertCompileSize(VBGLIOCCHANGEBALLOON, 24+16); /** @} */ /** @name VBGL_IOCTL_WRITE_CORE_DUMP * IOCTL to VBoxGuest to write guest core. * @{ */ #define VBGL_IOCTL_WRITE_CORE_DUMP VBGL_IOCTL_CODE_SIZE(19, VBGL_IOCTL_WRITE_CORE_DUMP_SIZE) #define VBGL_IOCTL_WRITE_CORE_DUMP_SIZE sizeof(VBGLIOCWRITECOREDUMP) #define VBGL_IOCTL_WRITE_CORE_DUMP_SIZE_IN sizeof(VBGLIOCWRITECOREDUMP) #define VBGL_IOCTL_WRITE_CORE_DUMP_SIZE_OUT sizeof(VBGLREQHDR) typedef struct VBGLIOCWRITECOREDUMP { /** The header. */ VBGLREQHDR Hdr; union { struct { /** Flags (reserved, MBZ). */ uint32_t fFlags; } In; } u; } VBGLIOCWRITECOREDUMP, RT_FAR *PVBGLIOCWRITECOREDUMP; AssertCompileSize(VBGLIOCWRITECOREDUMP, 24 + 4); typedef VBGLIOCWRITECOREDUMP VBoxGuestWriteCoreDump; /** @} */ #ifdef VBOX_WITH_DPC_LATENCY_CHECKER /** @name VBGL_IOCTL_DPC_LATENCY_CHECKER * IOCTL to VBoxGuest to perform DPC latency tests, printing the result in * the release log on the host. Takes no data, returns no data. * @{ */ # define VBGL_IOCTL_DPC_LATENCY_CHECKER VBGL_IOCTL_CODE_SIZE(20, VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE) # define VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE sizeof(VBGLREQHDR) # define VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE_IN sizeof(VBGLREQHDR) # define VBGL_IOCTL_DPC_LATENCY_CHECKER_SIZE_OUT sizeof(VBGLREQHDR) /** @} */ #endif #ifdef RT_OS_OS2 /** * The data buffer layout for the IDC entry point (AttachDD). * * @remark This is defined in multiple 16-bit headers / sources. * Some places it's called VBGOS2IDC to short things a bit. */ typedef struct VBGLOS2ATTACHDD { /** VBGL_IOC_VERSION. */ uint32_t u32Version; /** Opaque session handle. */ uint32_t u32Session; /** * The 32-bit service entry point. * * @returns VBox status code. * @param u32Session The session handle (PVBOXGUESTSESSION). * @param iFunction The requested function. * @param pReqHdr The input/output data buffer. The caller * ensures that this cannot be swapped out, or that * it's acceptable to take a page in fault in the * current context. If the request doesn't take * input or produces output, apssing NULL is okay. * @param cbReq The size of the data buffer. */ # if ARCH_BITS == 32 || defined(DOXYGEN_RUNNING) DECLCALLBACKMEMBER(int, pfnServiceEP,(uint32_t u32Session, unsigned iFunction, PVBGLREQHDR pReqHdr, size_t cbReq)); # else uint32_t pfnServiceEP; #endif /** The 16-bit service entry point for C code (cdecl). * * It's the same as the 32-bit entry point, but the types has * changed to 16-bit equivalents. * * @code * int far cdecl * VBoxGuestOs2IDCService16(uint32_t u32Session, uint16_t iFunction, * PVBGLREQHDR fpvData, uint16_t cbData); * @endcode */ # if ARCH_BITS == 16 || defined(DOXYGEN_RUNNING) DECLCALLBACKMEMBER(int, fpfnServiceEP,(uint32_t u32Session, uint16_t iFunction, PVBGLREQHDR fpvData, uint16_t cbData)); # else RTFAR16 fpfnServiceEP; # endif /** The 16-bit service entry point for Assembly code (register). * * This is just a wrapper around fpfnServiceEP to simplify calls * from 16-bit assembly code. * * @returns (e)ax: VBox status code; cx: The amount of data returned. * * @param u32Session eax - The above session handle. * @param iFunction dl - The requested function. * @param pvData es:bx - The input/output data buffer. * @param cbData cx - The size of the data buffer. */ RTFAR16 fpfnServiceAsmEP; } VBGLOS2ATTACHDD; /** Pointer to VBOXGUESTOS2IDCCONNECT buffer. */ typedef VBGLOS2ATTACHDD RT_FAR *PVBGLOS2ATTACHDD; /** * Prototype for the 16-bit callback returned by AttachDD on OS/2. * @param pAttachInfo Pointer to structure to fill in. */ # if defined(__IBMC__) || defined(__IBMCPP__) typedef void (* __cdecl RT_FAR_CODE PFNVBGLOS2ATTACHDD)(PVBGLOS2ATTACHDD pAttachInfo); # else typedef void (__cdecl RT_FAR_CODE *PFNVBGLOS2ATTACHDD)(PVBGLOS2ATTACHDD pAttachInfo); # endif #endif /* RT_OS_OS2 */ /** @name VBGL_IOCL_IDC_CONNECT * IDC client connect request. * * On platforms other than Windows and OS/2, this will also create a kernel * session for the caller. * * @note ring-0 only. * @{ */ #define VBGL_IOCTL_IDC_CONNECT VBGL_IOCTL_CODE_SIZE(63, VBGL_IOCTL_IDC_CONNECT_SIZE) #define VBGL_IOCTL_IDC_CONNECT_SIZE sizeof(VBGLIOCIDCCONNECT) #define VBGL_IOCTL_IDC_CONNECT_SIZE_IN RT_UOFFSET_AFTER(VBGLIOCIDCCONNECT, u.In) #define VBGL_IOCTL_IDC_CONNECT_SIZE_OUT sizeof(VBGLIOCIDCCONNECT) typedef struct VBGLIOCIDCCONNECT { /** The header. */ VBGLREQHDR Hdr; /** The payload union. */ union { struct { /** VBGL_IOCTL_IDC_CONNECT_MAGIC_COOKIE. */ uint32_t u32MagicCookie; /** The desired version of the I/O control interface (VBGL_IOC_VERSION). */ uint32_t uReqVersion; /** The minimum version of the I/O control interface (VBGL_IOC_VERSION). */ uint32_t uMinVersion; /** Reserved, MBZ. */ uint32_t uReserved; } In; struct { /** The session handle (opaque). */ #if ARCH_BITS >= 32 void RT_FAR *pvSession; #else uint32_t pvSession; #endif /** The version of the I/O control interface for this session * (typically VBGL_IOC_VERSION). */ uint32_t uSessionVersion; /** The I/O control interface version for of the driver (VBGL_IOC_VERSION). */ uint32_t uDriverVersion; /** The SVN revision of the driver. * This will be set to 0 if not compiled into the driver. */ uint32_t uDriverRevision; /** Reserved \#1 (will be returned as zero until defined). */ uint32_t uReserved1; /** Reserved \#2 (will be returned as NULL until defined). */ void RT_FAR *pvReserved2; } Out; } u; } VBGLIOCIDCCONNECT, RT_FAR *PVBGLIOCIDCCONNECT; AssertCompileSize(VBGLIOCIDCCONNECT, 24 + 16 + (ARCH_BITS == 64 ? 8 : 4) * 2); #if !defined(__GNUC__) /* Some GCC versions can't handle the complicated RT_UOFFSET_AFTER macro, it seems. */ \ && (!defined(RT_OS_OS2) || (!defined(__IBMC__) && !defined(__IBMCPP__) && (!defined(__WATCOMC__) || !defined(__cplusplus)))) AssertCompile(VBGL_IOCTL_IDC_CONNECT_SIZE_IN == 24 + 16); #endif #define VBGL_IOCTL_IDC_CONNECT_MAGIC_COOKIE UINT32_C(0x55aa4d5a) /**< Magic value for doing an IDC connect. */ /** @} */ /** @name VBGL_IOCL_IDC_DISCONNECT * IDC client disconnect request. * * This will destroy the kernel session associated with the IDC connection. * * @note ring-0 only. * @{ */ #define VBGL_IOCTL_IDC_DISCONNECT VBGL_IOCTL_CODE_SIZE(62, VBGL_IOCTL_IDC_DISCONNECT_SIZE) #define VBGL_IOCTL_IDC_DISCONNECT_SIZE sizeof(VBGLIOCIDCDISCONNECT) #define VBGL_IOCTL_IDC_DISCONNECT_SIZE_IN sizeof(VBGLIOCIDCDISCONNECT) #define VBGL_IOCTL_IDC_DISCONNECT_SIZE_OUT sizeof(VBGLREQHDR) typedef struct VBGLIOCIDCDISCONNECT { /** The header. */ VBGLREQHDR Hdr; union { struct { /** The session handle for platforms where this is needed. */ #if ARCH_BITS >= 32 void RT_FAR *pvSession; #else uint32_t pvSession; #endif } In; } u; } VBGLIOCIDCDISCONNECT, RT_FAR *PVBGLIOCIDCDISCONNECT; AssertCompileSize(VBGLIOCIDCDISCONNECT, 24 + (ARCH_BITS == 64 ? 8 : 4)); /** @} */ #if !defined(RT_OS_WINDOWS) && !defined(RT_OS_OS2) RT_C_DECLS_BEGIN /** * The VBoxGuest IDC entry point. * * @returns VBox status code. * @param pvSession The session. * @param uReq The request code. * @param pReqHdr The request. * @param cbReq The request size. */ int VBOXCALL VBoxGuestIDC(void RT_FAR *pvSession, uintptr_t uReq, PVBGLREQHDR pReqHdr, size_t cbReq); RT_C_DECLS_END #endif #if defined(RT_OS_LINUX) || defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD) /* Private IOCtls between user space and the kernel video driver. DRM private * IOCtls always have the type 'd' and a number between 0x40 and 0x99 (0x9F?) */ # define VBOX_DRM_IOCTL(a) (0x40 + DRM_VBOX_ ## a) /** Stop using HGSMI in the kernel driver until it is re-enabled, so that a * user-space driver can use it. It must be re-enabled before the kernel * driver can be used again in a sensible way. */ /** @note These IOCtls was removed from the code, but are left here as * templates as we may need similar ones in future. */ # define DRM_VBOX_DISABLE_HGSMI 0 # define DRM_IOCTL_VBOX_DISABLE_HGSMI VBOX_DRM_IOCTL(DISABLE_HGSMI) # define VBOXVIDEO_IOCTL_DISABLE_HGSMI _IO('d', DRM_IOCTL_VBOX_DISABLE_HGSMI) /** Enable HGSMI in the kernel driver after it was previously disabled. */ # define DRM_VBOX_ENABLE_HGSMI 1 # define DRM_IOCTL_VBOX_ENABLE_HGSMI VBOX_DRM_IOCTL(ENABLE_HGSMI) # define VBOXVIDEO_IOCTL_ENABLE_HGSMI _IO('d', DRM_IOCTL_VBOX_ENABLE_HGSMI) #endif /* RT_OS_LINUX || RT_OS_SOLARIS || RT_OS_FREEBSD */ #endif /* !defined(IN_RC) && !defined(IN_RING0_AGNOSTIC) && !defined(IPRT_NO_CRT) */ /** @} */ /** @} */ #endif /* !VBOX_INCLUDED_VBoxGuest_h */