| 1 | /* @file
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| 2 | *
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| 3 | * Host Channel
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2012-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #ifndef VBOX_INCLUDED_SRC_HostChannel_HostChannel_h
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| 19 | #define VBOX_INCLUDED_SRC_HostChannel_HostChannel_h
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| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 21 | # pragma once
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| 22 | #endif
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| 23 |
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| 24 | #include <iprt/list.h>
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| 25 |
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| 26 | #define LOG_GROUP LOG_GROUP_HGCM
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| 27 | #include <VBox/log.h>
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| 28 | #include <VBox/HostServices/VBoxHostChannel.h>
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| 29 |
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| 30 | #define HOSTCHLOG Log
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| 31 |
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| 32 | #ifdef DEBUG_sunlover
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| 33 | # undef HOSTCHLOG
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| 34 | # define HOSTCHLOG LogRel
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| 35 | #endif /* DEBUG_sunlover */
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| 36 |
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| 37 | struct VBOXHOSTCHCTX;
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| 38 | typedef struct VBOXHOSTCHCTX VBOXHOSTCHCTX;
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| 39 |
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| 40 | typedef struct VBOXHOSTCHCLIENT
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| 41 | {
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| 42 | RTLISTNODE nodeClient;
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| 43 |
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| 44 | VBOXHOSTCHCTX *pCtx;
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| 45 |
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| 46 | uint32_t u32ClientID;
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| 47 |
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| 48 | RTLISTANCHOR listChannels;
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| 49 | uint32_t volatile u32HandleSrc;
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| 50 |
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| 51 | RTLISTANCHOR listContexts; /* Callback contexts. */
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| 52 |
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| 53 | RTLISTANCHOR listEvents;
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| 54 |
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| 55 | bool fAsync; /* Guest is waiting for a message. */
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| 56 |
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| 57 | struct {
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| 58 | VBOXHGCMCALLHANDLE callHandle;
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| 59 | VBOXHGCMSVCPARM *paParms;
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| 60 | } async;
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| 61 |
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| 62 | } VBOXHOSTCHCLIENT;
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| 63 |
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| 64 |
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| 65 | /*
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| 66 | * The service functions. Locking is between the service thread and the host channel provider thread.
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| 67 | */
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| 68 | int vboxHostChannelLock(void);
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| 69 | void vboxHostChannelUnlock(void);
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| 70 |
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| 71 | int vboxHostChannelInit(void);
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| 72 | void vboxHostChannelDestroy(void);
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| 73 |
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| 74 | int vboxHostChannelClientConnect(VBOXHOSTCHCLIENT *pClient);
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| 75 | void vboxHostChannelClientDisconnect(VBOXHOSTCHCLIENT *pClient);
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| 76 |
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| 77 | int vboxHostChannelAttach(VBOXHOSTCHCLIENT *pClient,
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| 78 | uint32_t *pu32Handle,
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| 79 | const char *pszName,
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| 80 | uint32_t u32Flags);
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| 81 | int vboxHostChannelDetach(VBOXHOSTCHCLIENT *pClient,
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| 82 | uint32_t u32Handle);
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| 83 |
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| 84 | int vboxHostChannelSend(VBOXHOSTCHCLIENT *pClient,
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| 85 | uint32_t u32Handle,
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| 86 | const void *pvData,
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| 87 | uint32_t cbData);
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| 88 | int vboxHostChannelRecv(VBOXHOSTCHCLIENT *pClient,
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| 89 | uint32_t u32Handle,
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| 90 | void *pvData,
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| 91 | uint32_t cbData,
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| 92 | uint32_t *pu32DataReceived,
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| 93 | uint32_t *pu32DataRemaining);
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| 94 | int vboxHostChannelControl(VBOXHOSTCHCLIENT *pClient,
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| 95 | uint32_t u32Handle,
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| 96 | uint32_t u32Code,
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| 97 | void *pvParm,
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| 98 | uint32_t cbParm,
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| 99 | void *pvData,
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| 100 | uint32_t cbData,
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| 101 | uint32_t *pu32SizeDataReturned);
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| 102 |
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| 103 | int vboxHostChannelEventWait(VBOXHOSTCHCLIENT *pClient,
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| 104 | bool *pfEvent,
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| 105 | VBOXHGCMCALLHANDLE callHandle,
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| 106 | VBOXHGCMSVCPARM *paParms);
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| 107 |
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| 108 | int vboxHostChannelEventCancel(VBOXHOSTCHCLIENT *pClient);
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| 109 |
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| 110 | int vboxHostChannelQuery(VBOXHOSTCHCLIENT *pClient,
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| 111 | const char *pszName,
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| 112 | uint32_t u32Code,
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| 113 | void *pvParm,
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| 114 | uint32_t cbParm,
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| 115 | void *pvData,
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| 116 | uint32_t cbData,
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| 117 | uint32_t *pu32SizeDataReturned);
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| 118 |
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| 119 | int vboxHostChannelRegister(const char *pszName,
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| 120 | const VBOXHOSTCHANNELINTERFACE *pInterface,
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| 121 | uint32_t cbInterface);
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| 122 | int vboxHostChannelUnregister(const char *pszName);
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| 123 |
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| 124 |
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| 125 | void vboxHostChannelEventParmsSet(VBOXHGCMSVCPARM *paParms,
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| 126 | uint32_t u32ChannelHandle,
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| 127 | uint32_t u32Id,
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| 128 | const void *pvEvent,
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| 129 | uint32_t cbEvent);
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| 130 |
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| 131 | void vboxHostChannelReportAsync(VBOXHOSTCHCLIENT *pClient,
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| 132 | uint32_t u32ChannelHandle,
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| 133 | uint32_t u32Id,
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| 134 | const void *pvEvent,
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| 135 | uint32_t cbEvent);
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| 136 |
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| 137 | #endif /* !VBOX_INCLUDED_SRC_HostChannel_HostChannel_h */
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