| 1 | /* $Id: VBoxSFInit.cpp 90794 2021-08-23 13:16:11Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxSF - OS/2 Shared Folders, Initialization.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2007-2018 knut st. osmundsen <bird-src-spam@anduin.net>
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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| 17 | *
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| 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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| 20 | *
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| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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| 29 | */
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| 30 |
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| 31 |
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| 32 | /*********************************************************************************************************************************
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| 33 | * Header Files *
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| 34 | *********************************************************************************************************************************/
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| 35 | #define LOG_GROUP LOG_GROUP_DEFAULT
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| 36 | #include "VBoxSFInternal.h"
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| 37 |
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| 38 | #include <VBox/VBoxGuestLib.h>
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| 39 | #include <VBox/VBoxGuest.h>
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| 40 | #include <VBox/log.h>
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| 41 | #include <VBox/version.h>
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| 42 | #include <iprt/assert.h>
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| 43 | #include <iprt/errcore.h>
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| 44 | #include <iprt/initterm.h>
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| 45 |
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| 46 |
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| 47 | /*********************************************************************************************************************************
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| 48 | * Global Variables *
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| 49 | *********************************************************************************************************************************/
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| 50 | RT_C_DECLS_BEGIN
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| 51 | /* from VBoxSFA.asm */
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| 52 | extern RTFAR16 g_fpfnDevHlp;
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| 53 | extern VBGLOS2ATTACHDD g_VBoxGuestIDC;
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| 54 | extern uint32_t g_u32Info;
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| 55 | /* from sys0.asm and the linker/end.lib. */
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| 56 | extern char _text, _etext, _data, _end;
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| 57 | RT_C_DECLS_END
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| 58 |
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| 59 |
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| 60 |
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| 61 | /**
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| 62 | * 32-bit Ring-0 init routine.
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| 63 | *
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| 64 | * This is called the first time somebody tries to use the IFS.
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| 65 | * It will initialize IPRT, Vbgl and whatever else is required.
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| 66 | *
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| 67 | * The caller will do the necessary AttachDD and calling of the 16 bit
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| 68 | * IDC to initialize the g_VBoxGuestIDC global. Perhaps we should move
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| 69 | * this bit to VbglR0InitClient? It's just that it's so much simpler to do it
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| 70 | * while we're on the way here...
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| 71 | *
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| 72 | */
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| 73 | DECLASM(void) VBoxSFR0Init(void)
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| 74 | {
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| 75 | RTLogBackdoorPrintf("VBoxSFR0Init: version " VBOX_VERSION_STRING " r" RT_XSTR(VBOX_SVN_REV));
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| 76 | RTLogBackdoorPrintf("VBoxSFR0Init: g_fpfnDevHlp=%lx u32Version=%RX32 u32Session=%RX32 pfnServiceEP=%p g_u32Info=%u (%#x)\n",
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| 77 | g_fpfnDevHlp, g_VBoxGuestIDC.u32Version, g_VBoxGuestIDC.u32Session, g_VBoxGuestIDC.pfnServiceEP, g_u32Info, g_u32Info);
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| 78 | //RTLogBackdoorPrintf("&KernSISData=%p\n", &KernSISData);
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| 79 | //RTLogBackdoorPrintf("&KernLISData=%p\n", &KernLISData);
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| 80 | //RTLogBackdoorPrintf("KernInterruptLevel=%#x\n", KernInterruptLevel);
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| 81 | //RTLogBackdoorPrintf("KernTKSSBase=%p\n", KernTKSSBase);
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| 82 |
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| 83 | KernAllocMutexLock(&g_MtxFolders);
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| 84 | RTListInit(&g_FolderHead);
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| 85 |
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| 86 | /*
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| 87 | * Start by initializing IPRT.
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| 88 | */
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| 89 | if ( g_VBoxGuestIDC.u32Version == VBGL_IOC_VERSION
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| 90 | && RT_VALID_PTR(g_VBoxGuestIDC.u32Session)
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| 91 | && RT_VALID_PTR(g_VBoxGuestIDC.pfnServiceEP))
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| 92 | {
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| 93 | int rc = RTR0Init(0);
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| 94 | if (RT_SUCCESS(rc))
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| 95 | {
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| 96 | rc = VbglR0InitClient();
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| 97 | if (RT_SUCCESS(rc))
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| 98 | {
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| 99 | /*
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| 100 | * Complain if the embedded buffers feature is missing.
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| 101 | */
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| 102 | uint32_t fFeatures = 0;
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| 103 | rc = VbglR0QueryHostFeatures(&fFeatures);
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| 104 | if (RT_FAILURE(rc))
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| 105 | RTLogBackdoorPrintf("VBoxSFR0Init: Missing VBoxGuest.sys IDC connection! Check order in Config.kmk!\n");
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| 106 | else
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| 107 | {
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| 108 | g_fHostFeatures = fFeatures;
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| 109 | if (!(fFeatures & VMMDEV_HVF_HGCM_EMBEDDED_BUFFERS))
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| 110 | RTLogBackdoorPrintf("VBoxSFR0Init: WARNING! Embedded buffers feature is missing. Upgrade to latest VirtualBox!\n");
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| 111 | if (!(fFeatures & VMMDEV_HVF_HGCM_CONTIGUOUS_PAGE_LIST))
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| 112 | RTLogBackdoorPrintf("VBoxSFR0Init: WARNING! Contiguous page list buffers feature is missing. Upgrade to latest VirtualBox!\n");
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| 113 | }
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| 114 |
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| 115 | /*
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| 116 | * Allocate some big buffers for reading and writing.
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| 117 | */
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| 118 | vboxSfOs2InitFileBuffers();
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| 119 |
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| 120 | #ifndef DONT_LOCK_SEGMENTS
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| 121 | /*
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| 122 | * Lock the 32-bit segments in memory.
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| 123 | */
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| 124 | static KernVMLock_t s_Text32, s_Data32;
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| 125 | rc = KernVMLock(VMDHL_LONG,
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| 126 | &_text, (uintptr_t)&_etext - (uintptr_t)&_text,
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| 127 | &s_Text32, (KernPageList_t *)-1, NULL);
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| 128 | AssertMsg(rc == NO_ERROR, ("locking text32 failed, rc=%d\n"));
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| 129 | rc = KernVMLock(VMDHL_LONG | VMDHL_WRITE,
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| 130 | &_data, (uintptr_t)&_end - (uintptr_t)&_data,
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| 131 | &s_Data32, (KernPageList_t *)-1, NULL);
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| 132 | AssertMsg(rc == NO_ERROR, ("locking text32 failed, rc=%d\n"));
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| 133 | #endif
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| 134 |
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| 135 | RTLogBackdoorPrintf("VBoxSFR0Init: completed successfully\n");
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| 136 | return;
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| 137 | }
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| 138 | }
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| 139 |
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| 140 | RTLogBackdoorPrintf("VBoxSF: RTR0Init failed, rc=%Rrc\n", rc);
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| 141 | }
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| 142 | else
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| 143 | RTLogBackdoorPrintf("VBoxSF: Failed to connect to VBoxGuest.sys.\n");
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| 144 | }
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| 145 |
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