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/**
* xrdp: A Remote Desktop Protocol server.
*
* xrdp device redirection - we mainly use it for drive redirection
*
* 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.
*/
// LK_TODO dev_redir_xxx should become devredir_xxx
#if !defined(DEVREDIR_H)
#define DEVREDIR_H
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include "arch.h"
#include "parse.h"
#include "os_calls.h"
#include "log.h"
#include "chansrv_fuse.h"
typedef struct fuse_data FUSE_DATA;
struct fuse_data
{
void *data_ptr;
FUSE_DATA *next;
};
/* An I/O Resource Packet to track dev_dir I/O calls */
typedef struct irp IRP;
struct irp
{
tui32 completion_id; /* unique number */
char completion_type; /* describes I/O type */
tui32 FileId; /* RDP client provided unique number */
char pathname[256]; /* absolute pathname */
char gen_buf[1024]; /* for general use */
int type;
tui32 device_id; /* identifies remote device */
FUSE_DATA *fd_head; /* point to first FUSE opaque object */
FUSE_DATA *fd_tail; /* point to last FUSE opaque object */
IRP *next; /* point to next IRP */
IRP *prev; /* point to previous IRP */
};
void *dev_redir_fuse_data_peek(IRP *irp);
void *dev_redir_fuse_data_dequeue(IRP *irp);
int dev_redir_fuse_data_enqueue(IRP *irp, void *vp);
IRP * dev_redir_irp_new();
IRP * dev_redir_irp_find(tui32 completion_id);
IRP * dev_redir_irp_find_by_fileid(tui32 FileId);
IRP * dev_redir_irp_get_last();
int dev_redir_irp_delete(IRP *irp);
void dev_redir_irp_dump();
int APP_CC dev_redir_init(void);
int APP_CC dev_redir_deinit(void);
int APP_CC dev_redir_data_in(struct stream* s, int chan_id, int chan_flags,
int length, int total_length);
int APP_CC dev_redir_get_wait_objs(tbus* objs, int* count, int* timeout);
int APP_CC dev_redir_check_wait_objs(void);
void dev_redir_send_server_core_cap_req();
void dev_redir_send_server_clientID_confirm();
void dev_redir_send_server_user_logged_on();
void dev_redir_send_server_device_announce_resp(tui32 device_id);
void dev_redir_send_drive_dir_request(IRP *irp, tui32 device_id,
tui32 InitialQuery, char *Path);
int dev_redir_send_drive_create_request(tui32 device_id, char *path,
tui32 DesiredAccess,
tui32 CreateOptions,
tui32 CreateDisposition,
tui32 completion_id);
int dev_redir_send_drive_close_request(tui16 Component, tui16 PacketId,
tui32 DeviceId,
tui32 FileId,
tui32 CompletionId,
tui32 MajorFunction,
tui32 MinorFunc,
int pad_len);
void dev_redir_proc_client_devlist_announce_req(struct stream *s);
void dev_redir_proc_client_core_cap_resp(struct stream *s);
void dev_redir_proc_device_iocompletion(struct stream *s);
void dev_redir_proc_query_dir_response(IRP *irp,
struct stream *s,
tui32 DeviceId,
tui32 CompletionId,
tui32 IoStatus);
/* misc stuff */
void dev_redir_insert_dev_io_req_header(struct stream *s,
tui32 DeviceId,
tui32 FileId,
tui32 CompletionId,
tui32 MajorFunction,
tui32 MinorFunction);
void devredir_cvt_to_unicode(char *unicode, char *path);
void devredir_cvt_from_unicode_len(char *path, char *unicode, int len);
int dev_redir_string_ends_with(char *string, char c);
void dev_redir_insert_rdpdr_header(struct stream *s, tui16 Component,
tui16 PacketId);
void devredir_proc_cid_rmdir_or_file(IRP *irp, tui32 IoStatus);
void devredir_proc_cid_rmdir_or_file_resp(IRP *irp, tui32 IoStatus);
void devredir_proc_cid_rename_file(IRP *irp, tui32 IoStatus);
void devredir_proc_cid_rename_file_resp(IRP *irp, tui32 IoStatus);
/* called from FUSE module */
int dev_redir_get_dir_listing(void *fusep, tui32 device_id, char *path);
int dev_redir_file_open(void *fusep, tui32 device_id, char *path,
int mode, int type, char *gen_buf);
int devredir_file_close(void *fusep, tui32 device_id, tui32 file_id);
int dev_redir_file_read(void *fusep, tui32 device_id, tui32 FileId,
tui32 Length, tui64 Offset);
/* module based logging */
#define LOG_ERROR 0
#define LOG_INFO 1
#define LOG_DEBUG 2
#ifndef LOG_LEVEL
#define LOG_LEVEL LOG_ERROR
#endif
#define log_error(_params...) \
{ \
g_write("[%10.10u]: DEV_REDIR %s: %d : ERROR: ", \
g_time3(), __func__, __LINE__); \
g_writeln (_params); \
}
#define log_info(_params...) \
{ \
if (LOG_INFO <= LOG_LEVEL) \
{ \
g_write("[%10.10u]: DEV_REDIR %s: %d : ", \
g_time3(), __func__, __LINE__); \
g_writeln (_params); \
} \
}
#define log_debug(_params...) \
{ \
if (LOG_DEBUG <= LOG_LEVEL) \
{ \
g_write("[%10.10u]: DEV_REDIR %s: %d : ", \
g_time3(), __func__, __LINE__); \
g_writeln (_params); \
} \
}
int send_channel_data(int chan_id, char *data, int size);
/*
* RDPDR_HEADER definitions
*/
/* device redirector core component; most of the packets in this protocol */
/* are sent under this component ID */
#define RDPDR_CTYP_CORE 0x4472
/* printing component. the packets that use this ID are typically about */
/* printer cache management and identifying XPS printers */
#define RDPDR_CTYP_PRN 0x5052
/* Server Announce Request, as specified in section 2.2.2.2 */
#define PAKID_CORE_SERVER_ANNOUNCE 0x496E
/* Client Announce Reply and Server Client ID Confirm, as specified in */
/* sections 2.2.2.3 and 2.2.2.6. */
#define PAKID_CORE_CLIENTID_CONFIRM 0x4343
/* Client Name Request, as specified in section 2.2.2.4 */
#define PAKID_CORE_CLIENT_NAME 0x434E
/* Client Device List Announce Request, as specified in section 2.2.2.9 */
#define PAKID_CORE_DEVICELIST_ANNOUNCE 0x4441
/* Server Device Announce Response, as specified in section 2.2.2.1 */
#define PAKID_CORE_DEVICE_REPLY 0x6472
/* Device I/O Request, as specified in section 2.2.1.4 */
#define PAKID_CORE_DEVICE_IOREQUEST 0x4952
/* Device I/O Response, as specified in section 2.2.1.5 */
#define PAKID_CORE_DEVICE_IOCOMPLETION 0x4943
/* Server Core Capability Request, as specified in section 2.2.2.7 */
#define PAKID_CORE_SERVER_CAPABILITY 0x5350
/* Client Core Capability Response, as specified in section 2.2.2.8 */
#define PAKID_CORE_CLIENT_CAPABILITY 0x4350
/* Client Drive Device List Remove, as specified in section 2.2.3.2 */
#define PAKID_CORE_DEVICELIST_REMOVE 0x444D
/* Add Printer Cachedata, as specified in [MS-RDPEPC] section 2.2.2.3 */
#define PAKID_PRN_CACHE_DATA 0x5043
/* Server User Logged On, as specified in section 2.2.2.5 */
#define PAKID_CORE_USER_LOGGEDON 0x554C
/* Server Printer Set XPS Mode, as specified in [MS-RDPEPC] section 2.2.2.2 */
#define PAKID_PRN_USING_XPS 0x5543
/*
* Capability header definitions
*/
#define CAP_GENERAL_TYPE 0x0001 /* General cap set - GENERAL_CAPS_SET */
#define CAP_PRINTER_TYPE 0x0002 /* Print cap set - PRINTER_CAPS_SET */
#define CAP_PORT_TYPE 0x0003 /* Port cap set - PORT_CAPS_SET */
#define CAP_DRIVE_TYPE 0x0004 /* Drive cap set - DRIVE_CAPS_SET */
#define CAP_SMARTCARD_TYPE 0x0005 /* Smart card cap set - SMARTCARD_CAPS_SET */
/* client minor versions */
#define RDP_CLIENT_50 0x0002
#define RDP_CLIENT_51 0x0005
#define RDP_CLIENT_52 0x000a
#define RDP_CLIENT_60_61 0x000c
/* used in device announce list */
#define RDPDR_DTYP_SERIAL 0x0001
#define RDPDR_DTYP_PARALLEL 0x0002
#define RDPDR_DTYP_PRINT 0x0004
#define RDPDR_DTYP_FILESYSTEM 0x0008
#define RDPDR_DTYP_SMARTCARD 0x0020
/*
* DesiredAccess Mask [MS-SMB2] section 2.2.13.1.1
*/
#define DA_FILE_READ_DATA 0x00000001
#define DA_FILE_WRITE_DATA 0x00000002
#define DA_FILE_APPEND_DATA 0x00000004
#define DA_FILE_READ_EA 0x00000008 /* rd extended attributes */
#define DA_FILE_WRITE_EA 0x00000010 /* wr extended attributes */
#define DA_FILE_EXECUTE 0x00000020
#define DA_FILE_READ_ATTRIBUTES 0x00000080
#define DA_FILE_WRITE_ATTRIBUTES 0x00000100
#define DA_DELETE 0x00010000
#define DA_READ_CONTROL 0x00020000 /* rd security descriptor */
#define DA_WRITE_DAC 0x00040000
#define DA_WRITE_OWNER 0x00080000
#define DA_SYNCHRONIZE 0x00100000
#define DA_ACCESS_SYSTEM_SECURITY 0x01000000
#define DA_MAXIMUM_ALLOWED 0x02000000
#define DA_GENERIC_ALL 0x10000000
#define DA_GENERIC_EXECUTE 0x20000000
#define DA_GENERIC_WRITE 0x40000000
#define DA_GENERIC_READ 0x80000000
/*
* CreateOptions Mask [MS-SMB2] section 2.2.13 SMB2 CREATE Request
*/
enum CREATE_OPTIONS
{
CO_FILE_DIRECTORY_FILE = 0x00000001,
CO_FILE_WRITE_THROUGH = 0x00000002,
CO_FILE_SYNCHRONOUS_IO_NONALERT = 0x00000020,
CO_FILE_DELETE_ON_CLOSE = 0x00001000
};
/*
* CreateDispositions Mask [MS-SMB2] section 2.2.13
*/
#define CD_FILE_SUPERSEDE 0x00000000
#define CD_FILE_OPEN 0x00000001
#define CD_FILE_CREATE 0x00000002
#define CD_FILE_OPEN_IF 0x00000003
#define CD_FILE_OVERWRITE 0x00000004
#define CD_FILE_OVERWRITE_IF 0x00000005
/*
* Device I/O Request MajorFunction definitions
*/
#define IRP_MJ_CREATE 0x00000000
#define IRP_MJ_CLOSE 0x00000002
#define IRP_MJ_READ 0x00000003
#define IRP_MJ_WRITE 0x00000004
#define IRP_MJ_DEVICE_CONTROL 0x0000000E
#define IRP_MJ_QUERY_VOLUME_INFORMATION 0x0000000A
#define IRP_MJ_SET_VOLUME_INFORMATION 0x0000000B
#define IRP_MJ_QUERY_INFORMATION 0x00000005
#define IRP_MJ_SET_INFORMATION 0x00000006
#define IRP_MJ_DIRECTORY_CONTROL 0x0000000C
#define IRP_MJ_LOCK_CONTROL 0x00000011
/*
* Device I/O Request MinorFunction definitions
*
* Only valid when MajorFunction code = IRP_MJ_DIRECTORY_CONTROL
*/
#define IRP_MN_QUERY_DIRECTORY 0x00000001
#define IRP_MN_NOTIFY_CHANGE_DIRECTORY 0x00000002
/*
* NTSTATUS codes (used by IoStatus)
*/
#define NT_STATUS_SUCCESS 0x00000000
#define NT_STATUS_UNSUCCESSFUL 0xC0000001
/*
* File system ioctl codes
* MS-FSCC section 2.3 FSCTL Structures
*/
#define FSCTL_DELETE_OBJECT_ID 0x900a0
/*
* CompletionID types, used in IRPs to indicate I/O operation
*/
enum COMPLETION_ID
{
CID_CREATE_DIR_REQ = 1,
CID_DIRECTORY_CONTROL,
CID_CREATE_OPEN_REQ,
CID_READ,
CID_WRITE,
CID_CLOSE,
CID_FILE_CLOSE,
CID_RMDIR_OR_FILE,
CID_RMDIR_OR_FILE_RESP,
CID_RENAME_FILE,
CID_RENAME_FILE_RESP
};
enum FS_INFORMATION_CLASS
{
FileBasicInformation = 0x00000004, /* set atime, mtime, ctime etc */
FileEndOfFileInformation = 0x00000014, /* set EOF info */
FileDispositionInformation = 0x0000000D, /* mark a file for deletion */
FileRenameInformation = 0x0000000A, /* rename a file */
FileAllocationInformation = 0x00000013 /* set file allocation size */
};
/*
* constants for drive dir query
*/
/* Basic information about a file or directory. Basic information is */
/* defined as the file's name, time stamp, and size, or its attributes */
#define FileDirectoryInformation 0x00000001
/* Full information about a file or directory. Full information is defined */
/* as all the basic information, plus extended attribute size. */
#define FileFullDirectoryInformation 0x00000002
/* Basic information plus extended attribute size and short name */
/* about a file or directory. */
#define FileBothDirectoryInformation 0x00000003
/* Detailed information on the names of files in a directory. */
#define FileNamesInformation 0x0000000C
/*
* NTSTATUS Codes of interest to us
*/
/* No more files were found which match the file specification */
#define STATUS_NO_MORE_FILES 0x80000006
/* Windows file attributes */
#define W_FILE_ATTRIBUTE_DIRECTORY 0x00000010
#define W_FILE_ATTRIBUTE_READONLY 0x00000001
#define WINDOWS_TO_LINUX_FILE_PERM(_a) \
(((_a) & W_FILE_ATTRIBUTE_DIRECTORY) ? S_IFDIR | 0100 : S_IFREG) |\
(((_a) & W_FILE_ATTRIBUTE_READONLY) ? 0444 : 0644)
/* winodws time starts on Jan 1, 1601 */
/* Linux time starts on Jan 1, 1970 */
#define EPOCH_DIFF 11644473600LL
#define WINDOWS_TO_LINUX_TIME(_t) ((_t) / 10000000) - EPOCH_DIFF;
#define OP_RENAME_FILE 0x01
#endif
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