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/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* xrdp device redirection - we mainly use it for drive redirection
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*
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* Copyright (C) Laxmikant Rashinkar 2013
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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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#if !defined(DEVREDIR_H)
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#define DEVREDIR_H
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include "arch.h"
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#include "parse.h"
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#include "os_calls.h"
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#include "log.h"
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#include "chansrv_fuse.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 dev_dir 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 completion_id; /* unique number */
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char completion_type; /* describes I/O type */
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tui32 FileId; /* RDP client provided unique number */
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//void *fusep; /* opaque FUSE info */
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char pathname[256]; /* absolute pathname */
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tui32 device_id; /* identifies remote device */
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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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};
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void *dev_redir_fuse_data_peek(IRP *irp);
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void *dev_redir_fuse_data_dequeue(IRP *irp);
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int dev_redir_fuse_data_enqueue(IRP *irp, void *vp);
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IRP * dev_redir_irp_new();
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IRP * dev_redir_irp_find(tui32 completion_id);
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IRP * dev_redir_irp_find_by_fileid(tui32 FileId);
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IRP * dev_redir_irp_get_last();
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int dev_redir_irp_delete(IRP *irp);
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void dev_redir_irp_dump();
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int APP_CC dev_redir_init(void);
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int APP_CC dev_redir_deinit(void);
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int APP_CC dev_redir_data_in(struct stream* s, int chan_id, int chan_flags,
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int length, int total_length);
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int APP_CC dev_redir_get_wait_objs(tbus* objs, int* count, int* timeout);
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int APP_CC dev_redir_check_wait_objs(void);
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void dev_redir_send_server_core_cap_req();
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void dev_redir_send_server_clientID_confirm();
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void dev_redir_send_server_user_logged_on();
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void dev_redir_send_server_device_announce_resp(tui32 device_id);
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void dev_redir_send_drive_dir_request(IRP *irp, tui32 device_id,
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tui32 InitialQuery, char *Path);
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int dev_redir_send_drive_create_request(tui32 device_id, char *path,
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tui32 DesiredAccess,
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tui32 CreateOptions,
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tui32 CreateDisposition,
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tui32 completion_id);
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int dev_redir_send_drive_close_request(tui16 Component, tui16 PacketId,
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tui32 DeviceId,
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tui32 FileId,
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tui32 CompletionId,
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tui32 MajorFunction,
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tui32 MinorFunc,
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int pad_len);
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void dev_redir_proc_client_devlist_announce_req(struct stream *s);
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void dev_redir_proc_client_core_cap_resp(struct stream *s);
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void dev_redir_proc_device_iocompletion(struct stream *s);
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void dev_redir_proc_query_dir_response(IRP *irp,
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struct stream *s,
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tui32 DeviceId,
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tui32 CompletionId,
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tui32 IoStatus);
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/* misc stuff */
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void dev_redir_insert_dev_io_req_header(struct stream *s,
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tui32 DeviceId,
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tui32 FileId,
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tui32 CompletionId,
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tui32 MajorFunction,
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tui32 MinorFunction);
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void devredir_cvt_to_unicode(char *unicode, char *path);
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void devredir_cvt_from_unicode_len(char *path, char *unicode, int len);
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int dev_redir_string_ends_with(char *string, char c);
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void dev_redir_insert_rdpdr_header(struct stream *s, tui16 Component,
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tui16 PacketId);
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/* called from FUSE module */
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int dev_redir_get_dir_listing(void *fusep, tui32 device_id, char *path);
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int dev_redir_file_open(void *fusep, tui32 device_id, char *path,
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int mode, int type);
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int dev_redir_file_read(void *fusep, tui32 device_id, tui32 FileId,
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tui32 Length, tui64 Offset);
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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_ERROR
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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]: DEV_REDIR %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]: DEV_REDIR %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]: DEV_REDIR %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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int send_channel_data(int chan_id, char *data, int size);
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/*
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* RDPDR_HEADER definitions
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*/
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/* device redirector core component; most of the packets in this protocol */
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/* are sent under this component ID */
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#define RDPDR_CTYP_CORE 0x4472
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/* printing component. the packets that use this ID are typically about */
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/* printer cache management and identifying XPS printers */
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#define RDPDR_CTYP_PRN 0x5052
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/* Server Announce Request, as specified in section 2.2.2.2 */
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#define PAKID_CORE_SERVER_ANNOUNCE 0x496E
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/* Client Announce Reply and Server Client ID Confirm, as specified in */
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/* sections 2.2.2.3 and 2.2.2.6. */
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#define PAKID_CORE_CLIENTID_CONFIRM 0x4343
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/* Client Name Request, as specified in section 2.2.2.4 */
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#define PAKID_CORE_CLIENT_NAME 0x434E
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/* Client Device List Announce Request, as specified in section 2.2.2.9 */
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#define PAKID_CORE_DEVICELIST_ANNOUNCE 0x4441
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/* Server Device Announce Response, as specified in section 2.2.2.1 */
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#define PAKID_CORE_DEVICE_REPLY 0x6472
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/* Device I/O Request, as specified in section 2.2.1.4 */
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#define PAKID_CORE_DEVICE_IOREQUEST 0x4952
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/* Device I/O Response, as specified in section 2.2.1.5 */
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#define PAKID_CORE_DEVICE_IOCOMPLETION 0x4943
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/* Server Core Capability Request, as specified in section 2.2.2.7 */
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#define PAKID_CORE_SERVER_CAPABILITY 0x5350
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/* Client Core Capability Response, as specified in section 2.2.2.8 */
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#define PAKID_CORE_CLIENT_CAPABILITY 0x4350
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/* Client Drive Device List Remove, as specified in section 2.2.3.2 */
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#define PAKID_CORE_DEVICELIST_REMOVE 0x444D
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/* Add Printer Cachedata, as specified in [MS-RDPEPC] section 2.2.2.3 */
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#define PAKID_PRN_CACHE_DATA 0x5043
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/* Server User Logged On, as specified in section 2.2.2.5 */
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#define PAKID_CORE_USER_LOGGEDON 0x554C
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/* Server Printer Set XPS Mode, as specified in [MS-RDPEPC] section 2.2.2.2 */
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#define PAKID_PRN_USING_XPS 0x5543
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/*
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* Capability header definitions
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*/
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#define CAP_GENERAL_TYPE 0x0001 /* General cap set - GENERAL_CAPS_SET */
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#define CAP_PRINTER_TYPE 0x0002 /* Print cap set - PRINTER_CAPS_SET */
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#define CAP_PORT_TYPE 0x0003 /* Port cap set - PORT_CAPS_SET */
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#define CAP_DRIVE_TYPE 0x0004 /* Drive cap set - DRIVE_CAPS_SET */
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#define CAP_SMARTCARD_TYPE 0x0005 /* Smart card cap set - SMARTCARD_CAPS_SET */
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/* client minor versions */
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#define RDP_CLIENT_50 0x0002
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#define RDP_CLIENT_51 0x0005
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#define RDP_CLIENT_52 0x000a
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#define RDP_CLIENT_60_61 0x000c
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/* used in device announce list */
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#define RDPDR_DTYP_SERIAL 0x0001
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#define RDPDR_DTYP_PARALLEL 0x0002
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#define RDPDR_DTYP_PRINT 0x0004
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#define RDPDR_DTYP_FILESYSTEM 0x0008
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#define RDPDR_DTYP_SMARTCARD 0x0020
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/*
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* DesiredAccess Mask [MS-SMB2] section 2.2.13.1.1
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*/
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#define DA_FILE_READ_DATA 0x00000001
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#define DA_FILE_WRITE_DATA 0x00000002
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#define DA_FILE_APPEND_DATA 0x00000004
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#define DA_FILE_READ_EA 0x00000008 /* rd extended attributes */
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#define DA_FILE_WRITE_EA 0x00000010 /* wr extended attributes */
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#define DA_FILE_EXECUTE 0x00000020
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#define DA_FILE_READ_ATTRIBUTES 0x00000080
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#define DA_FILE_WRITE_ATTRIBUTES 0x00000100
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#define DA_DELETE 0x00010000
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#define DA_READ_CONTROL 0x00020000 /* rd security descriptor */
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#define DA_WRITE_DAC 0x00040000
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#define DA_WRITE_OWNER 0x00080000
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#define DA_SYNCHRONIZE 0x00100000
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#define DA_ACCESS_SYSTEM_SECURITY 0x01000000
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#define DA_MAXIMUM_ALLOWED 0x02000000
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#define DA_GENERIC_ALL 0x10000000
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#define DA_GENERIC_EXECUTE 0x20000000
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#define DA_GENERIC_WRITE 0x40000000
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#define DA_GENERIC_READ 0x80000000
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/*
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* CreateOptions Mask [MS-SMB2] section 2.2.13 SMB2 CREATE Request
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*/
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#define CO_FILE_DIRECTORY_FILE 0x00000001
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#define CO_FILE_WRITE_THROUGH 0x00000002
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#define CO_FILE_SYNCHRONOUS_IO_NONALERT 0x00000020
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/*
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* CreateDispositions Mask [MS-SMB2] section 2.2.13
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*/
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#define CD_FILE_SUPERSEDE 0x00000000
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#define CD_FILE_OPEN 0x00000001
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#define CD_FILE_CREATE 0x00000002
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#define CD_FILE_OPEN_IF 0x00000003
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#define CD_FILE_OVERWRITE 0x00000004
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#define CD_FILE_OVERWRITE_IF 0x00000005
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/*
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* Device I/O Request MajorFunction definitions
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*/
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#define IRP_MJ_CREATE 0x00000000
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#define IRP_MJ_CLOSE 0x00000002
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#define IRP_MJ_READ 0x00000003
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#define IRP_MJ_WRITE 0x00000004
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#define IRP_MJ_DEVICE_CONTROL 0x0000000E
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#define IRP_MJ_QUERY_VOLUME_INFORMATION 0x0000000A
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#define IRP_MJ_SET_VOLUME_INFORMATION 0x0000000B
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#define IRP_MJ_QUERY_INFORMATION 0x00000005
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#define IRP_MJ_SET_INFORMATION 0x00000006
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#define IRP_MJ_DIRECTORY_CONTROL 0x0000000C
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#define IRP_MJ_LOCK_CONTROL 0x00000011
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/*
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* Device I/O Request MinorFunction definitions
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*
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* Only valid when MajorFunction code = IRP_MJ_DIRECTORY_CONTROL
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*/
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#define IRP_MN_QUERY_DIRECTORY 0x00000001
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#define IRP_MN_NOTIFY_CHANGE_DIRECTORY 0x00000002
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/*
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* NTSTATUS codes (used by IoStatus)
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*/
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#define NT_STATUS_SUCCESS 0x00000000
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#define NT_STATUS_UNSUCCESSFUL 0xC0000001
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/*
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* CompletionID types, used in IRPs to indicate I/O operation
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*/
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enum
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{
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|
CID_CREATE_DIR_REQ = 1,
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CID_CREATE_OPEN_REQ,
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CID_READ,
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CID_WRITE,
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CID_DIRECTORY_CONTROL,
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CID_CLOSE
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};
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#if 0
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#define CID_CLOSE 0x0002
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#define CID_READ 0x0003
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#define CID_WRITE 0x0004
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#define CID_DEVICE_CONTROL 0x0005
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#define CID_QUERY_VOLUME_INFORMATION 0x0006
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#define CID_SET_VOLUME_INFORMATION 0x0007
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#define CID_QUERY_INFORMATION 0x0008
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#define CID_SET_INFORMATION 0x0009
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#define CID_DIRECTORY_CONTROL 0x000a
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#define CID_LOCK_CONTROL 0x000b
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#endif
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/*
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* constants for drive dir query
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*/
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/* Basic information about a file or directory. Basic information is */
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/* defined as the file's name, time stamp, and size, or its attributes */
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#define FileDirectoryInformation 0x00000001
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/* Full information about a file or directory. Full information is defined */
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/* as all the basic information, plus extended attribute size. */
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#define FileFullDirectoryInformation 0x00000002
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/* Basic information plus extended attribute size and short name */
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/* about a file or directory. */
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#define FileBothDirectoryInformation 0x00000003
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/* Detailed information on the names of files in a directory. */
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#define FileNamesInformation 0x0000000C
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/*
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* NTSTATUS Codes of interest to us
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*/
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/* No more files were found which match the file specification */
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#define STATUS_NO_MORE_FILES 0x80000006
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/* Windows file attributes */
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#define W_FILE_ATTRIBUTE_DIRECTORY 0x00000010
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#define W_FILE_ATTRIBUTE_READONLY 0x00000001
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#define WINDOWS_TO_LINUX_FILE_PERM(_a) \
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(((_a) & W_FILE_ATTRIBUTE_DIRECTORY) ? S_IFDIR | 0100 : S_IFREG) |\
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(((_a) & W_FILE_ATTRIBUTE_READONLY) ? 0444 : 0644)
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/* winodws time starts on Jan 1, 1601 */
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/* Linux time starts on Jan 1, 1970 */
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#define EPOCH_DIFF 11644473600LL
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#define WINDOWS_TO_LINUX_TIME(_t) ((_t) / 10000000) - EPOCH_DIFF;
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#endif
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