Laxmikant Rashinkar
11 years ago
parent
cd0a8721d1
commit
89b7cd269e
@ -0,0 +1,231 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Laxmikant Rashinkar 2013 LK.Rashinkar@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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*/
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/*
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* manage I/O for redirected file system and devices
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*/
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#include "parse.h"
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#include "os_calls.h"
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#include "irp.h"
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/* module based logging */
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#define LOG_ERROR 0
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#define LOG_INFO 1
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#define LOG_DEBUG 2
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#ifndef LOG_LEVEL
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#define LOG_LEVEL LOG_DEBUG
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#endif
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#define log_error(_params...) \
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{ \
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g_write("[%10.10u]: IRP %s: %d : ERROR: ", \
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g_time3(), __func__, __LINE__); \
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g_writeln (_params); \
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}
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#define log_info(_params...) \
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{ \
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if (LOG_INFO <= LOG_LEVEL) \
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{ \
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g_write("[%10.10u]: IRP %s: %d : ", \
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g_time3(), __func__, __LINE__); \
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g_writeln (_params); \
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} \
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}
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#define log_debug(_params...) \
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{ \
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if (LOG_DEBUG <= LOG_LEVEL) \
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{ \
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g_write("[%10.10u]: IRP %s: %d : ", \
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g_time3(), __func__, __LINE__); \
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g_writeln (_params); \
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} \
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}
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IRP *g_irp_head = NULL;
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/**
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* Create a new IRP and append to linked list
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*
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* @return new IRP or NULL on error
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*****************************************************************************/
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IRP * devredir_irp_new()
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{
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IRP *irp;
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IRP *irp_last;
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log_debug("entered");
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/* create new IRP */
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if ((irp = g_malloc(sizeof(IRP), 1)) == NULL)
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{
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log_error("system out of memory!");
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return NULL;
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}
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/* insert at end of linked list */
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if ((irp_last = devredir_irp_get_last()) == NULL)
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{
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/* list is empty, this is the first entry */
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g_irp_head = irp;
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}
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else
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{
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irp_last->next = irp;
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irp->prev = irp_last;
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}
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return irp;
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}
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/**
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* Delete specified IRP from linked list
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*
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* @return 0 on success, -1 on failure
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*****************************************************************************/
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int devredir_irp_delete(IRP *irp)
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{
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IRP *lirp = g_irp_head;
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log_debug("=== entered; completion_id=%d type=%d",
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irp->CompletionId, irp->completion_type);
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if ((irp == NULL) || (lirp == NULL))
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return -1;
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devredir_irp_dump(); // LK_TODO
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while (lirp)
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{
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if (lirp == irp)
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break;
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lirp = lirp->next;
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}
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if (lirp == NULL)
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return -1; /* did not find specified irp */
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if (lirp->prev == NULL)
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{
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/* we are at head of linked list */
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if (lirp->next == NULL)
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{
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/* only one element in list */
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g_free(lirp);
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g_irp_head = NULL;
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devredir_irp_dump(); // LK_TODO
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return 0;
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}
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lirp->next->prev = NULL;
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g_irp_head = lirp->next;
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g_free(lirp);
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}
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else if (lirp->next == NULL)
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{
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/* we are at tail of linked list */
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lirp->prev->next = NULL;
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g_free(lirp);
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}
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else
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{
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/* we are in between */
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lirp->prev->next = lirp->next;
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lirp->next->prev = lirp->prev;
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g_free(lirp);
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}
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devredir_irp_dump(); // LK_TODO
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return 0;
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}
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/**
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* Return IRP containing specified completion_id
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*****************************************************************************/
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IRP *devredir_irp_find(tui32 completion_id)
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{
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IRP *irp = g_irp_head;
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while (irp)
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{
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if (irp->CompletionId == completion_id)
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return irp;
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irp = irp->next;
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}
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return NULL;
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}
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IRP * devredir_irp_find_by_fileid(tui32 FileId)
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{
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IRP *irp = g_irp_head;
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while (irp)
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{
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if (irp->FileId == FileId)
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return irp;
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irp = irp->next;
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}
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return NULL;
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}
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/**
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* Return last IRP in linked list
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*****************************************************************************/
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IRP * devredir_irp_get_last()
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{
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IRP *irp = g_irp_head;
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while (irp)
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{
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if (irp->next == NULL)
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break;
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irp = irp->next;
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}
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return irp;
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}
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void devredir_irp_dump()
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{
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IRP *irp = g_irp_head;
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log_debug("------- dumping IRPs --------");
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while (irp)
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{
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log_debug(" completion_id=%d\tcompletion_type=%d\tFileId=%d",
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irp->CompletionId, irp->completion_type, irp->FileId);
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irp = irp->next;
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}
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log_debug("------- dumping IRPs done ---");
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}
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@ -0,0 +1,64 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Laxmikant Rashinkar 2013 LK.Rashinkar@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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*/
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/*
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* manage I/O for redirected file system and devices
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*/
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#ifndef __IRP_H
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#define __IRP_H
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typedef struct fuse_data FUSE_DATA;
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struct fuse_data
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{
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void *data_ptr;
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FUSE_DATA *next;
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};
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/* An I/O Resource Packet to track I/O calls */
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typedef struct irp IRP;
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struct irp
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{
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tui32 CompletionId; /* unique number */
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tui32 DeviceId; /* identifies remote device */
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tui32 FileId; /* RDP client provided unique number */
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char completion_type; /* describes I/O type */
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char pathname[256]; /* absolute pathname */
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char gen_buf[1024]; /* for general use */
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int type;
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FUSE_DATA *fd_head; /* point to first FUSE opaque object */
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FUSE_DATA *fd_tail; /* point to last FUSE opaque object */
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IRP *next; /* point to next IRP */
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IRP *prev; /* point to previous IRP */
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int scard_index; /* used to smart card to locate dev */
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void (*callback)(struct stream *s, IRP *irp, tui32 DeviceId,
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tui32 CompletionId, tui32 IoStatus);
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};
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IRP * devredir_irp_new();
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int devredir_irp_delete(IRP *irp);
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IRP * devredir_irp_find(tui32 completion_id);
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IRP * devredir_irp_find_by_fileid(tui32 FileId);
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IRP * devredir_irp_get_last();
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void devredir_irp_dump();
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#endif /* end ifndef __IRP_H */
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@ -0,0 +1,528 @@
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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Laxmikant Rashinkar 2013 LK.Rashinkar@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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*/
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/*
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* smartcard redirection support
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*/
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#include "os_calls.h"
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#include "smartcard.h"
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#include "log.h"
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#include "irp.h"
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#include "devredir.h"
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/*
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* TODO
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*
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* o need to query client for build number and determine whether we should use
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* SCREDIR_VERSION_XP or SCREDIR_VERSION_LONGHORN
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*
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* o need to call scard_release_resources()
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*
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* o why is win 7 sending SCARD_IOCTL_ACCESS_STARTED_EVENT first
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* 0000 00 01 00 00 04 00 00 00 e0 00 09 00 00 00 00 00 ................
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* 0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
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* 0020 28 b7 9d 02
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*/
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/*
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* Notes:
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*
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* XP and Server 2003 use version SCREDIR_VERSION_XP functions 5 - 58
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* Vista and Server 2008 use version SCREDIR_VERSION_LONGHORN functions 5 - 64
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* if TS Client's build number is >= 4,034 use SCREDIR_VERSION_LONGHORN
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*/
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/* module based logging */
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#define LOG_ERROR 0
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#define LOG_INFO 1
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#define LOG_DEBUG 2
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#ifndef LOG_LEVEL
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#define LOG_LEVEL LOG_DEBUG
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#endif
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#define log_error(_params...) \
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{ \
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g_write("[%10.10u]: SMART_CARD %s: %d : ERROR: ", \
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g_time3(), __func__, __LINE__); \
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g_writeln (_params); \
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}
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#define log_info(_params...) \
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{ \
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if (LOG_INFO <= LOG_LEVEL) \
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{ \
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g_write("[%10.10u]: SMART_CARD %s: %d : ", \
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g_time3(), __func__, __LINE__); \
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g_writeln (_params); \
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} \
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}
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#define log_debug(_params...) \
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{ \
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if (LOG_DEBUG <= LOG_LEVEL) \
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{ \
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g_write("[%10.10u]: SMART_CARD %s: %d : ", \
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g_time3(), __func__, __LINE__); \
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g_writeln (_params); \
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} \
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}
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/* [MS-RDPESC] 3.1.4 */
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#define SCARD_IOCTL_ESTABLISH_CONTEXT 0x00090014 /* EstablishContext */
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#define SCARD_IOCTL_RELEASE_CONTEXT 0x00090018 /* ReleaseContext */
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#define SCARD_IOCTL_IS_VALID_CONTEXT 0x0009001C /* IsValidContext */
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#define SCARD_IOCTL_LIST_READER_GROUPS 0x00090020 /* ListReaderGroups */
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#define SCARD_IOCTL_LIST_READERS_A 0x00090028 /* ListReaders ASCII */
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#define SCARD_IOCTL_LIST_READERS_W 0x0009002C /* ListReaders Wide */
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#define SCARD_IOCTL_INTRODUCE_READER_GROUP 0x00090050 /* IntroduceReaderGroup */
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#define SCARD_IOCTL_FORGET_READER_GROUP 0x00090058 /* ForgetReader */
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#define SCARD_IOCTL_INTRODUCE_READER 0x00090060 /* IntroduceReader */
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#define SCARD_IOCTL_FORGET_READER 0x00090068 /* IntroduceReader */
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#define SCARD_IOCTL_ADD_READER_TO_GROUP 0x00090070 /* AddReaderToGroup */
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#define SCARD_IOCTL_REMOVE_READER_FROM_GROUP 0x00090078 /* RemoveReaderFromGroup */
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#define SCARD_IOCTL_GET_STATUS_CHANGE 0x000900A0 /* GetStatusChangeA */
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#define SCARD_IOCTL_CANCEL 0x000900A8 /* Cancel */
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#define SCARD_IOCTL_CONNECT 0x000900AC /* ConnectA */
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#define SCARD_IOCTL_RECONNECT 0x000900B4 /* Reconnect */
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#define SCARD_IOCTL_DISCONNECT 0x000900B8 /* Disconnect */
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#define SCARD_IOCTL_BEGIN_TRANSACTION 0x000900BC /* BeginTransaction */
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#define SCARD_IOCTL_END_TRANSACTION 0x000900C0 /* EndTransaction */
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#define SCARD_IOCTL_STATE 0x000900C4 /* State */
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#define SCARD_IOCTL_STATUS 0x000900C8 /* StatusA */
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#define SCARD_IOCTL_TRANSMIT 0x000900D0 /* Transmit */
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#define SCARD_IOCTL_CONTROL 0x000900D4 /* Control */
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#define SCARD_IOCTL_GETATTRIB 0x000900D8 /* GetAttrib */
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#define SCARD_IOCTL_SETATTRIB 0x000900DC /* SetAttrib */
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#define SCARD_IOCTL_ACCESS_STARTED_EVENT 0x000900E0 /* SCardAccessStartedEvent */
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#define SCARD_IOCTL_LOCATE_CARDS_BY_ATR 0x000900E8 /* LocateCardsByATR */
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/* scope used in EstablishContextCall */
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#define SCARD_SCOPE_USER 0x00000000
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#define SCARD_SCOPE_TERMINAL 0x00000001
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#define SCARD_SCOPE_SYSTEM 0x00000002
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#define MAX_SMARTCARDS 16
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/* stores info about a smart card */
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typedef struct smartcard
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{
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tui32 DeviceId;
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char Context[16]; /* opaque context; save as passed to us */
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int Context_len; /* Context len in bytes */
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} SMARTCARD;
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SMARTCARD *smartcards[MAX_SMARTCARDS];
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int g_smartcards_inited = 0;
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extern tui32 g_completion_id;
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extern int g_rdpdr_chan_id; /* in chansrv.c */
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/* forward declarations specific to this file */
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static void scard_send_EstablishContext(IRP *irp);
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static void scard_send_ListReaders(IRP *irp, int wide);
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static struct stream *scard_make_new_ioctl(IRP *irp, tui32 ioctl);
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static int scard_add_new_device(tui32 device_id);
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static int scard_get_free_slot();
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static void scard_release_resources();
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/******************************************************************************
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** non static functions **
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******************************************************************************/
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void scard_device_announce(tui32 device_id)
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{
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IRP *irp;
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log_debug("entered: device_id=%d", device_id);
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if (!g_smartcards_inited)
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{
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g_memset(&smartcards, 0, sizeof(smartcards));
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g_smartcards_inited = 1;
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}
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if ((irp = devredir_irp_new()) == NULL)
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{
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log_error("system out of memory");
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return;
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}
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irp->scard_index = scard_add_new_device(device_id);
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if (irp->scard_index < 0)
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{
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log_debug("NOT adding smartcard with DeviceId=%d to list", device_id);
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devredir_irp_delete(irp);
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return;
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}
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log_debug("added smartcard with DeviceId=%d to list", device_id);
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irp->CompletionId = g_completion_id++;
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irp->DeviceId = device_id;
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irp->callback = scard_handle_EstablishContext_Return;
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scard_send_EstablishContext(irp);
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log_debug("leaving");
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}
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/******************************************************************************
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** callbacks into this module **
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******************************************************************************/
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void scard_handle_EstablishContext_Return(struct stream *s, IRP *irp,
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tui32 DeviceId, tui32 CompletionId,
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tui32 IoStatus)
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{
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tui32 len;
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int tmp;
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SMARTCARD *sc;
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log_debug("entered");
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/* sanity check */
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if ((DeviceId != irp->DeviceId) || (CompletionId != irp->CompletionId))
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{
|
||||
log_error("DeviceId/CompletionId do not match those in IRP");
|
||||
return;
|
||||
}
|
||||
|
||||
if (IoStatus != 0)
|
||||
{
|
||||
log_error("failed to establish context - device not usable");
|
||||
/* LK_TODO delete irp and smartcard entry */
|
||||
return;
|
||||
}
|
||||
|
||||
sc = smartcards[irp->scard_index];
|
||||
|
||||
/* get OutputBufferLen */
|
||||
xstream_rd_u32_le(s, len);
|
||||
|
||||
/* LK_TODO */
|
||||
g_hexdump(s->p, len);
|
||||
|
||||
xstream_rd_u32_le(s, tmp); /* should be len 8, LE, V1 */
|
||||
xstream_rd_u32_le(s, tmp); /* marshalling flag */
|
||||
xstream_rd_u32_le(s, tmp); /* ?? */
|
||||
xstream_rd_u32_le(s, tmp); /* ?? */
|
||||
xstream_rd_u32_le(s, tmp); /* ?? */
|
||||
xstream_rd_u32_le(s, tmp); /* ?? */
|
||||
xstream_rd_u32_le(s, tmp); /* ?? */
|
||||
xstream_rd_u32_le(s, len); /* len of context in bytes */
|
||||
sc->Context_len = len;
|
||||
xstream_copyout(sc->Context, s, len);
|
||||
|
||||
if (LOG_LEVEL == LOG_DEBUG)
|
||||
{
|
||||
log_debug("dumping context (%d bytes)", sc->Context_len);
|
||||
g_hexdump(sc->Context, sc->Context_len);
|
||||
}
|
||||
|
||||
irp->callback = scard_handle_ListReaders_Return;
|
||||
scard_send_ListReaders(irp, 1);
|
||||
|
||||
/* LK_TODO need to delete IRP */
|
||||
log_debug("leaving");
|
||||
}
|
||||
|
||||
void scard_handle_ListReaders_Return(struct stream *s, IRP *irp,
|
||||
tui32 DeviceId, tui32 CompletionId,
|
||||
tui32 IoStatus)
|
||||
{
|
||||
tui32 len;
|
||||
|
||||
log_debug("entered");
|
||||
|
||||
/* sanity check */
|
||||
if ((DeviceId != irp->DeviceId) || (CompletionId != irp->CompletionId))
|
||||
{
|
||||
log_error("DeviceId/CompletionId do not match those in IRP");
|
||||
return;
|
||||
}
|
||||
|
||||
if (IoStatus != 0)
|
||||
{
|
||||
log_error("failed to list readers - device not usable");
|
||||
/* LK_TODO delete irp and smartcard entry */
|
||||
return;
|
||||
}
|
||||
|
||||
/* get OutputBufferLen */
|
||||
xstream_rd_u32_le(s, len);
|
||||
|
||||
/* LK_TODO */
|
||||
log_debug("dumping %d bytes", len);
|
||||
g_hexdump(s->p, len);
|
||||
|
||||
log_debug("leaving");
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
** static functions local to this file **
|
||||
******************************************************************************/
|
||||
|
||||
/**
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
static void scard_send_EstablishContext(IRP *irp)
|
||||
{
|
||||
struct stream *s;
|
||||
int bytes;
|
||||
|
||||
if ((s = scard_make_new_ioctl(irp, SCARD_IOCTL_ESTABLISH_CONTEXT)) == NULL)
|
||||
return;
|
||||
|
||||
xstream_wr_u32_le(s, 0x08); /* len */
|
||||
xstream_wr_u32_le(s, 0); /* unused */
|
||||
xstream_wr_u32_le(s, SCARD_SCOPE_SYSTEM); /* Ioctl specific data */
|
||||
xstream_wr_u32_le(s, 0); /* don't know what this is, */
|
||||
/* but Win7 is sending it */
|
||||
/* get stream len */
|
||||
bytes = xstream_len(s);
|
||||
|
||||
/* InputBufferLength is number of bytes AFTER 20 byte padding */
|
||||
*(s->data + 28) = bytes - 56;
|
||||
|
||||
/* send to client */
|
||||
send_channel_data(g_rdpdr_chan_id, s->data, bytes);
|
||||
xstream_free(s);
|
||||
}
|
||||
|
||||
/**
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
static void scard_send_ListReaders(IRP *irp, int wide)
|
||||
{
|
||||
/* see [MS-RDPESC] 2.2.2.4 */
|
||||
|
||||
SMARTCARD *sc;
|
||||
struct stream *s;
|
||||
int bytes;
|
||||
tui32 ioctl;
|
||||
|
||||
if ((sc = smartcards[irp->scard_index]) == NULL)
|
||||
{
|
||||
log_error("smartcards[%d] is NULL", irp->scard_index);
|
||||
return;
|
||||
}
|
||||
|
||||
ioctl = (wide > 0) ? SCARD_IOCTL_LIST_READERS_W :
|
||||
SCARD_IOCTL_LIST_READERS_A;
|
||||
|
||||
if ((s = scard_make_new_ioctl(irp, ioctl)) == NULL)
|
||||
return;
|
||||
|
||||
xstream_wr_u32_le(s, 72); /* number of bytes to follow */
|
||||
xstream_seek(s, 0x1c); /* freerdp does not use this */
|
||||
|
||||
/* insert context */
|
||||
xstream_wr_u32_le(s, sc->Context_len);
|
||||
xstream_copyin(s, sc->Context, sc->Context_len);
|
||||
|
||||
xstream_wr_u32_le(s, 36); /* length of mszGroups */
|
||||
xstream_wr_u16_le(s, 0x0053);
|
||||
xstream_wr_u16_le(s, 0x0043);
|
||||
xstream_wr_u16_le(s, 0x0061);
|
||||
xstream_wr_u16_le(s, 0x0072);
|
||||
xstream_wr_u16_le(s, 0x0064);
|
||||
xstream_wr_u16_le(s, 0x0024);
|
||||
xstream_wr_u16_le(s, 0x0041);
|
||||
xstream_wr_u16_le(s, 0x006c);
|
||||
xstream_wr_u16_le(s, 0x006c);
|
||||
xstream_wr_u16_le(s, 0x0052);
|
||||
xstream_wr_u16_le(s, 0x0065);
|
||||
xstream_wr_u16_le(s, 0x0061);
|
||||
xstream_wr_u16_le(s, 0x0064);
|
||||
xstream_wr_u16_le(s, 0x0065);
|
||||
xstream_wr_u16_le(s, 0x0072);
|
||||
xstream_wr_u16_le(s, 0x0073);
|
||||
|
||||
xstream_wr_u32_le(s, 0x00);
|
||||
|
||||
/* get stream len */
|
||||
bytes = xstream_len(s);
|
||||
|
||||
/* InputBufferLength is number of bytes AFTER 20 byte padding */
|
||||
*(s->data + 28) = bytes - 56;
|
||||
|
||||
/* send to client */
|
||||
send_channel_data(g_rdpdr_chan_id, s->data, bytes);
|
||||
xstream_free(s);
|
||||
|
||||
/*
|
||||
scard_device_control: dumping 120 bytes of data
|
||||
0000 00 08 00 00 58 00 00 00 2c 00 09 00 00 00 00 00 ....X...,.......
|
||||
0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
||||
0020 01 10 08 00 cc cc cc cc 48 00 00 00 00 00 00 00 ........H.......
|
||||
0030 04 00 00 00 00 00 02 00 24 00 00 00 04 00 02 00 ........$.......
|
||||
0040 00 00 00 00 ff ff ff ff 04 00 00 00 84 db 03 01 ................
|
||||
0050 24 00 00 00 53 00 43 00 61 00 72 00 64 00 24 00 $...S.C.a.r.d.$.
|
||||
0060 41 00 6c 00 6c 00 52 00 65 00 61 00 64 00 65 00 A.l.l.R.e.a.d.e.
|
||||
0070 72 00 73 00 00 00 00 00 r.s.....
|
||||
scard_device_control: output_len=2048 input_len=88 ioctl_code=0x9002c
|
||||
*/
|
||||
|
||||
/*
|
||||
scard_device_control: dumping 120 bytes of data
|
||||
0000 00 08 00 00 80 00 00 00 14 00 09 00 00 00 00 00 ................
|
||||
0010 2e 2e 00 00 00 00 00 00 02 00 00 00 00 00 00 00 ................
|
||||
0020 01 10 08 00 cc cc cc cc 48 00 00 00 00 00 00 00 ........H.......
|
||||
0030 02 00 00 00 00 00 00 00 72 64 00 00 00 00 00 00 ........rd......
|
||||
0040 81 27 00 00 00 00 00 00 04 00 00 00 84 b3 03 01 .'..............
|
||||
0050 24 00 00 00 53 00 43 00 61 00 72 00 64 00 24 00 $...S.C.a.r.d.$.
|
||||
0060 41 00 6c 00 6c 00 52 00 65 00 61 00 64 00 65 00 A.l.l.R.e.a.d.e.
|
||||
0070 72 00 73 00 00 00 00 00 r.s.....
|
||||
scard_device_control: output_len=2048 input_len=128 ioctl_code=0x90014
|
||||
*/
|
||||
}
|
||||
|
||||
/**
|
||||
* Crate a new stream and insert specified IOCTL
|
||||
*
|
||||
* @param irp information about the I/O
|
||||
* @param ioctl the IOCTL code
|
||||
*
|
||||
* @return stream with IOCTL inserted in it, NULL on error
|
||||
*****************************************************************************/
|
||||
|
||||
static struct stream *scard_make_new_ioctl(IRP *irp, tui32 ioctl)
|
||||
{
|
||||
/*
|
||||
* format of device control request
|
||||
*
|
||||
* DeviceIoRequest
|
||||
* u16 RDPDR_CTYP_CORE
|
||||
* u16 PAKID_CORE_DEVICE_IOREQUEST
|
||||
* u32 DeviceId
|
||||
* u32 FileId
|
||||
* u32 CompletionId
|
||||
* u32 MajorFunction
|
||||
* u32 MinorFunction
|
||||
*
|
||||
* u32 OutputBufferLength SHOULD be 2048
|
||||
* u32 InputBufferLength
|
||||
* u32 IoControlCode
|
||||
* 20 bytes padding
|
||||
* xx bytes InputBuffer (variable)
|
||||
*/
|
||||
|
||||
struct stream *s;
|
||||
|
||||
xstream_new(s, 1024 * 3);
|
||||
if (s == NULL)
|
||||
{
|
||||
log_error("system out of memory");
|
||||
return s;
|
||||
}
|
||||
|
||||
devredir_insert_DeviceIoRequest(s,
|
||||
irp->DeviceId,
|
||||
irp->FileId,
|
||||
irp->CompletionId,
|
||||
IRP_MJ_DEVICE_CONTROL,
|
||||
0);
|
||||
|
||||
xstream_wr_u32_le(s, 2048); /* OutputBufferLength */
|
||||
xstream_wr_u32_le(s, 0); /* InputBufferLength - insert later */
|
||||
xstream_wr_u32_le(s, ioctl); /* Ioctl Code */
|
||||
xstream_seek(s, 20); /* padding */
|
||||
|
||||
/* [MS-RPCE] 2.2.6.1 */
|
||||
xstream_wr_u32_le(s, 0x00081001); /* len 8, LE, v1 */
|
||||
xstream_wr_u32_le(s, 0xcccccccc); /* filler */
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a new smart card device entry and insert it into smartcards[]
|
||||
*
|
||||
* @param device_id DeviceId of new card
|
||||
*
|
||||
* @return index into smartcards[] on success, -1 on failure
|
||||
*****************************************************************************/
|
||||
|
||||
static int scard_add_new_device(tui32 device_id)
|
||||
{
|
||||
int index;
|
||||
SMARTCARD *sc;
|
||||
|
||||
if ((index = scard_get_free_slot()) < 0)
|
||||
return -1;
|
||||
|
||||
if ((sc = g_malloc(sizeof(SMARTCARD), 1)) == NULL)
|
||||
{
|
||||
log_error("system out of memory");
|
||||
return -1;
|
||||
}
|
||||
|
||||
sc->DeviceId = device_id;
|
||||
smartcards[index] = sc;
|
||||
|
||||
return index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Find first unused entry in smartcards
|
||||
*
|
||||
* @return index of first unused entry in smartcards or -1 if smartcards is full
|
||||
*****************************************************************************/
|
||||
|
||||
static int scard_get_free_slot()
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < MAX_SMARTCARDS; i++)
|
||||
{
|
||||
if (smartcards[i] == NULL)
|
||||
{
|
||||
log_debug("found free slot at index %d", i);
|
||||
return i;
|
||||
}
|
||||
}
|
||||
|
||||
log_error("too many smart card devices; rejecting this one");
|
||||
return -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Release resources prior to shutting down
|
||||
*****************************************************************************/
|
||||
|
||||
static void scard_release_resources()
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < MAX_SMARTCARDS; i++)
|
||||
{
|
||||
if (smartcards[i] != NULL)
|
||||
{
|
||||
g_free(smartcards[i]);
|
||||
smartcards[i] = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
*
|
||||
*****************************************************************************/
|
||||
@ -0,0 +1,42 @@
|
||||
/**
|
||||
* xrdp: A Remote Desktop Protocol server.
|
||||
*
|
||||
* Copyright (C) Laxmikant Rashinkar 2013 LK.Rashinkar@gmail.com
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* smartcard redirection support
|
||||
*/
|
||||
|
||||
#ifndef _SMARTCARD_C
|
||||
#define _SMARTCARD_C
|
||||
|
||||
#include "parse.h"
|
||||
#include "irp.h"
|
||||
|
||||
/* forward declarations */
|
||||
void scard_device_announce(tui32 device_id);
|
||||
|
||||
/* callbacks into this module */
|
||||
void scard_handle_EstablishContext_Return(struct stream *s, IRP *irp,
|
||||
tui32 DeviceId, tui32 CompletionId,
|
||||
tui32 IoStatus);
|
||||
|
||||
void scard_handle_ListReaders_Return(struct stream *s, IRP *irp,
|
||||
tui32 DeviceId, tui32 CompletionId,
|
||||
tui32 IoStatus);
|
||||
|
||||
#endif /* end #ifndef _SMARTCARD_C */
|
||||
Loading…
Reference in new issue