| 1 | /* $Id: VBoxSFInit.cpp 68550 2017-08-31 12:09:41Z 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 knut st. osmundsen <[email protected]>
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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/log.h>
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| 40 | #include <iprt/assert.h>
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| 41 | #include <iprt/initterm.h>
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| 42 |
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| 43 |
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| 44 | /*********************************************************************************************************************************
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| 45 | * Global Variables *
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| 46 | *********************************************************************************************************************************/
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| 47 | RT_C_DECLS_BEGIN
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| 48 | /* from VBoxSFA.asm */
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| 49 | extern RTFAR16 g_fpfnDevHlp;
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| 50 | extern VBOXGUESTOS2IDCCONNECT g_VBoxGuestIDC;
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| 51 | extern uint32_t g_u32Info;
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| 52 | /* from sys0.asm and the linker/end.lib. */
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| 53 | extern char _text, _etext, _data, _end;
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| 54 | RT_C_DECLS_END
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| 55 |
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| 56 |
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| 57 |
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| 58 | /**
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| 59 | * 32-bit Ring-0 init routine.
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| 60 | *
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| 61 | * This is called the first time somebody tries to use the IFS.
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| 62 | * It will initialize IPRT, Vbgl and whatever else is required.
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| 63 | *
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| 64 | * The caller will do the necessary AttachDD and calling of the 16 bit
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| 65 | * IDC to initialize the g_VBoxGuestIDC global. Perhaps we should move
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| 66 | * this bit to VbglR0InitClient? It's just that it's so much simpler to do it
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| 67 | * while we're on the way here...
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| 68 | *
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| 69 | */
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| 70 | DECLASM(void) VBoxSFR0Init(void)
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| 71 | {
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| 72 | Log(("VBoxSFR0Init: g_fpfnDevHlp=%lx u32Version=%RX32 u32Session=%RX32 pfnServiceEP=%p g_u32Info=%u (%#x)\n",
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| 73 | g_fpfnDevHlp, g_VBoxGuestIDC.u32Version, g_VBoxGuestIDC.u32Session, g_VBoxGuestIDC.pfnServiceEP, g_u32Info, g_u32Info));
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| 74 |
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| 75 | /*
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| 76 | * Start by initializing IPRT.
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| 77 | */
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| 78 | if ( g_VBoxGuestIDC.u32Version == VMMDEV_VERSION
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| 79 | && VALID_PTR(g_VBoxGuestIDC.u32Session)
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| 80 | && VALID_PTR(g_VBoxGuestIDC.pfnServiceEP))
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| 81 | {
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| 82 | int rc = RTR0Init(0);
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| 83 | if (RT_SUCCESS(rc))
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| 84 | {
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| 85 | rc = VbglR0InitClient();
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| 86 | if (RT_SUCCESS(rc))
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| 87 | {
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| 88 | #ifndef DONT_LOCK_SEGMENTS
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| 89 | /*
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| 90 | * Lock the 32-bit segments in memory.
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| 91 | */
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| 92 | static KernVMLock_t s_Text32, s_Data32;
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| 93 | rc = KernVMLock(VMDHL_LONG,
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| 94 | &_text, (uintptr_t)&_etext - (uintptr_t)&_text,
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| 95 | &s_Text32, (KernPageList_t *)-1, NULL);
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| 96 | AssertMsg(rc == NO_ERROR, ("locking text32 failed, rc=%d\n"));
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| 97 | rc = KernVMLock(VMDHL_LONG | VMDHL_WRITE,
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| 98 | &_data, (uintptr_t)&_end - (uintptr_t)&_data,
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| 99 | &s_Data32, (KernPageList_t *)-1, NULL);
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| 100 | AssertMsg(rc == NO_ERROR, ("locking text32 failed, rc=%d\n"));
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| 101 | #endif
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| 102 |
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| 103 | Log(("VBoxSFR0Init: completed successfully\n"));
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| 104 | return;
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| 105 | }
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| 106 | }
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| 107 |
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| 108 | LogRel(("VBoxSF: RTR0Init failed, rc=%Rrc\n", rc));
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| 109 | }
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| 110 | else
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| 111 | LogRel(("VBoxSF: Failed to connect to VBoxGuest.sys.\n"));
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| 112 | }
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| 113 |
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