| 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) 2012-2017 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 __VBOXHOSTCHANNEL__H
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| 19 | #define __VBOXHOSTCHANNEL__H
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| 20 |
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| 21 | #include <iprt/list.h>
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| 22 |
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| 23 | #define LOG_GROUP LOG_GROUP_HGCM
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| 24 | #include <VBox/log.h>
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| 25 | #include <VBox/HostServices/VBoxHostChannel.h>
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| 26 |
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| 27 | #define HOSTCHLOG Log
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| 28 |
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| 29 | #ifdef DEBUG_sunlover
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| 30 | # undef HOSTCHLOG
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| 31 | # define HOSTCHLOG LogRel
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| 32 | #endif /* DEBUG_sunlover */
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| 33 |
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| 34 | struct VBOXHOSTCHCTX;
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| 35 | typedef struct VBOXHOSTCHCTX VBOXHOSTCHCTX;
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| 36 |
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| 37 | typedef struct VBOXHOSTCHCLIENT
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| 38 | {
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| 39 | RTLISTNODE nodeClient;
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| 40 |
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| 41 | VBOXHOSTCHCTX *pCtx;
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| 42 |
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| 43 | uint32_t u32ClientID;
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| 44 |
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| 45 | RTLISTANCHOR listChannels;
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| 46 | uint32_t volatile u32HandleSrc;
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| 47 |
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| 48 | RTLISTANCHOR listContexts; /* Callback contexts. */
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| 49 |
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| 50 | RTLISTANCHOR listEvents;
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| 51 |
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| 52 | bool fAsync; /* Guest is waiting for a message. */
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| 53 |
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| 54 | struct {
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| 55 | VBOXHGCMCALLHANDLE callHandle;
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| 56 | VBOXHGCMSVCPARM *paParms;
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| 57 | } async;
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| 58 |
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| 59 | } VBOXHOSTCHCLIENT;
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| 60 |
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| 61 |
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| 62 | /*
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| 63 | * The service functions. Locking is between the service thread and the host channel provider thread.
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| 64 | */
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| 65 | int vboxHostChannelLock(void);
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| 66 | void vboxHostChannelUnlock(void);
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| 67 |
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| 68 | int vboxHostChannelInit(void);
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| 69 | void vboxHostChannelDestroy(void);
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| 70 |
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| 71 | int vboxHostChannelClientConnect(VBOXHOSTCHCLIENT *pClient);
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| 72 | void vboxHostChannelClientDisconnect(VBOXHOSTCHCLIENT *pClient);
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| 73 |
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| 74 | int vboxHostChannelAttach(VBOXHOSTCHCLIENT *pClient,
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| 75 | uint32_t *pu32Handle,
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| 76 | const char *pszName,
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| 77 | uint32_t u32Flags);
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| 78 | int vboxHostChannelDetach(VBOXHOSTCHCLIENT *pClient,
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| 79 | uint32_t u32Handle);
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| 80 |
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| 81 | int vboxHostChannelSend(VBOXHOSTCHCLIENT *pClient,
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| 82 | uint32_t u32Handle,
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| 83 | const void *pvData,
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| 84 | uint32_t cbData);
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| 85 | int vboxHostChannelRecv(VBOXHOSTCHCLIENT *pClient,
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| 86 | uint32_t u32Handle,
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| 87 | void *pvData,
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| 88 | uint32_t cbData,
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| 89 | uint32_t *pu32DataReceived,
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| 90 | uint32_t *pu32DataRemaining);
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| 91 | int vboxHostChannelControl(VBOXHOSTCHCLIENT *pClient,
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| 92 | uint32_t u32Handle,
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| 93 | uint32_t u32Code,
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| 94 | void *pvParm,
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| 95 | uint32_t cbParm,
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| 96 | void *pvData,
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| 97 | uint32_t cbData,
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| 98 | uint32_t *pu32SizeDataReturned);
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| 99 |
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| 100 | int vboxHostChannelEventWait(VBOXHOSTCHCLIENT *pClient,
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| 101 | bool *pfEvent,
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| 102 | VBOXHGCMCALLHANDLE callHandle,
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| 103 | VBOXHGCMSVCPARM *paParms);
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| 104 |
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| 105 | int vboxHostChannelEventCancel(VBOXHOSTCHCLIENT *pClient);
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| 106 |
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| 107 | int vboxHostChannelQuery(VBOXHOSTCHCLIENT *pClient,
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| 108 | const char *pszName,
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| 109 | uint32_t u32Code,
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| 110 | void *pvParm,
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| 111 | uint32_t cbParm,
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| 112 | void *pvData,
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| 113 | uint32_t cbData,
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| 114 | uint32_t *pu32SizeDataReturned);
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| 115 |
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| 116 | int vboxHostChannelRegister(const char *pszName,
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| 117 | const VBOXHOSTCHANNELINTERFACE *pInterface,
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| 118 | uint32_t cbInterface);
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| 119 | int vboxHostChannelUnregister(const char *pszName);
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| 120 |
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| 121 |
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| 122 | void vboxHostChannelEventParmsSet(VBOXHGCMSVCPARM *paParms,
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| 123 | uint32_t u32ChannelHandle,
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| 124 | uint32_t u32Id,
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| 125 | const void *pvEvent,
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| 126 | uint32_t cbEvent);
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| 127 |
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| 128 | void vboxHostChannelReportAsync(VBOXHOSTCHCLIENT *pClient,
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| 129 | uint32_t u32ChannelHandle,
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| 130 | uint32_t u32Id,
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| 131 | const void *pvEvent,
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| 132 | uint32_t cbEvent);
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| 133 |
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| 134 | #endif /* __VBOXHOSTCHANNEL__H */
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