106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Device Redirection Virtual Channel
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*
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* Copyright 2010-2011 Vic Lee
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* Copyright 2010-2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <winpr/crt.h>
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#include <winpr/stream.h>
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#include <freerdp/utils/svc_plugin.h>
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#include "rdpdr_main.h"
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#include "devman.h"
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#include "irp.h"
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static void irp_free(IRP* irp)
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{
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DEBUG_SVC("DeviceId %d FileId %d CompletionId %d", irp->device->id, irp->FileId, irp->CompletionId);
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stream_free(irp->input);
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stream_free(irp->output);
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_aligned_free(irp);
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}
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static void irp_complete(IRP* irp)
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{
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int pos;
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DEBUG_SVC("DeviceId %d FileId %d CompletionId %d", irp->device->id, irp->FileId, irp->CompletionId);
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pos = Stream_GetPosition(irp->output);
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Stream_SetPosition(irp->output, 12);
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Stream_Write_UINT32(irp->output, irp->IoStatus);
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Stream_SetPosition(irp->output, pos);
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svc_plugin_send(irp->devman->plugin, irp->output);
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irp->output = NULL;
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irp_free(irp);
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}
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IRP* irp_new(DEVMAN* devman, wStream* data_in)
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{
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IRP* irp;
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UINT32 DeviceId;
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DEVICE* device;
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Stream_Read_UINT32(data_in, DeviceId);
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device = devman_get_device_by_id(devman, DeviceId);
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if (device == NULL)
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{
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DEBUG_WARN("unknown DeviceId %d", DeviceId);
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return NULL;
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}
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irp = (IRP*) _aligned_malloc(sizeof(IRP), MEMORY_ALLOCATION_ALIGNMENT);
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ZeroMemory(irp, sizeof(IRP));
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irp->device = device;
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irp->devman = devman;
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Stream_Read_UINT32(data_in, irp->FileId);
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Stream_Read_UINT32(data_in, irp->CompletionId);
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Stream_Read_UINT32(data_in, irp->MajorFunction);
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Stream_Read_UINT32(data_in, irp->MinorFunction);
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irp->input = data_in;
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irp->output = stream_new(256);
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Stream_Write_UINT16(irp->output, RDPDR_CTYP_CORE);
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Stream_Write_UINT16(irp->output, PAKID_CORE_DEVICE_IOCOMPLETION);
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Stream_Write_UINT32(irp->output, DeviceId);
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Stream_Write_UINT32(irp->output, irp->CompletionId);
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Stream_Seek_UINT32(irp->output); /* IoStatus */
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irp->Complete = irp_complete;
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irp->Discard = irp_free;
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DEBUG_SVC("DeviceId %d FileId %d CompletionId %d MajorFunction 0x%X MinorFunction 0x%x",
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irp->device->id, irp->FileId, irp->CompletionId, irp->MajorFunction, irp->MinorFunction);
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return irp;
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}
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