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/* -*- c-basic-offset: 8 -*- |
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rdesktop: A Remote Desktop Protocol client. |
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Disk Redirection |
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Copyright (C) Jeroen Meijer 2003 |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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|
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#define FILE_ATTRIBUTE_READONLY 0x00000001 |
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#define FILE_ATTRIBUTE_HIDDEN 0x00000002 |
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#define FILE_ATTRIBUTE_SYSTEM 0x00000004 |
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#define FILE_ATTRIBUTE_DIRECTORY 0x00000010 |
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#define FILE_ATTRIBUTE_ARCHIVE 0x00000020 |
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#define FILE_ATTRIBUTE_DEVICE 0x00000040 |
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#define FILE_ATTRIBUTE_NORMAL 0x00000080 |
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#define FILE_ATTRIBUTE_TEMPORARY 0x00000100 |
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#define FILE_ATTRIBUTE_SPARSE_FILE 0x00000200 |
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#define FILE_ATTRIBUTE_REPARSE_POINT 0x00000400 |
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#define FILE_ATTRIBUTE_COMPRESSED 0x00000800 |
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#define FILE_ATTRIBUTE_OFFLINE 0x00001000 |
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#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000 |
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#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000 |
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|
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#define FILE_BASIC_INFORMATION 0x04 |
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#define FILE_STANDARD_INFORMATION 0x05 |
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|
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#define FS_CASE_SENSITIVE 0x00000001 |
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#define FS_CASE_IS_PRESERVED 0x00000002 |
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#define FS_UNICODE_STORED_ON_DISK 0x00000004 |
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#define FS_PERSISTENT_ACLS 0x00000008 |
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#define FS_FILE_COMPRESSION 0x00000010 |
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#define FS_VOLUME_QUOTAS 0x00000020 |
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#define FS_SUPPORTS_SPARSE_FILES 0x00000040 |
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#define FS_SUPPORTS_REPARSE_POINTS 0x00000080 |
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#define FS_SUPPORTS_REMOTE_STORAGE 0X00000100 |
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#define FS_VOL_IS_COMPRESSED 0x00008000 |
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#define FILE_READ_ONLY_VOLUME 0x00080000 |
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|
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#define OPEN_EXISTING 1 |
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#define CREATE_NEW 2 |
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#define OPEN_ALWAYS 3 |
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#define TRUNCATE_EXISTING 4 |
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#define CREATE_ALWAYS 5 |
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|
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#define GENERIC_READ 0x80000000 |
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#define GENERIC_WRITE 0x40000000 |
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#define GENERIC_EXECUTE 0x20000000 |
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#define GENERIC_ALL 0x10000000 |
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|
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#define ERROR_FILE_NOT_FOUND 2L |
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#define ERROR_ALREADY_EXISTS 183L |
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|
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#define MAX_OPEN_FILES 0x100 |
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|
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <sys/vfs.h> /* linux statfs */ |
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#include <unistd.h> |
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#include <fcntl.h> /* open, close */ |
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#include <dirent.h> /* opendir, closedir, readdir */ |
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#include <fnmatch.h> |
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#include <errno.h> /* errno */ |
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#include "rdesktop.h" |
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|
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extern RDPDR_DEVICE g_rdpdr_device[]; |
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|
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struct fileinfo |
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{ |
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uint32 device_id, flags_and_attributes; |
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char path[256]; |
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DIR *pdir; |
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struct dirent *pdirent; |
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char pattern[64]; |
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BOOL delete_on_close; |
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} |
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g_fileinfo[MAX_OPEN_FILES]; |
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|
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/* Convert seconds since 1970 to a filetime */ |
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void |
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seconds_since_1970_to_filetime(time_t seconds, uint32 * high, uint32 * low) |
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{ |
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unsigned long long ticks; |
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|
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ticks = (seconds + 11644473600LL) * 10000000; |
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*low = (uint32) ticks; |
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*high = (uint32) (ticks >> 32); |
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} |
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|
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/* Enumeration of devices from rdesktop.c */ |
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/* returns numer of units found and initialized. */ |
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/* optarg looks like ':h:=/mnt/floppy,b:=/mnt/usbdevice1' */ |
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/* when it arrives to this function. */ |
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int |
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disk_enum_devices(int *id, char *optarg) |
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{ |
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char *pos = optarg; |
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char *pos2; |
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int count = 0; |
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|
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// skip the first colon |
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optarg++; |
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while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
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{ |
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pos2 = next_arg(optarg, '='); |
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strcpy(g_rdpdr_device[*id].name, optarg); |
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|
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toupper_str(g_rdpdr_device[*id].name); |
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|
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/* add trailing colon to name. */ |
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strcat(g_rdpdr_device[*id].name, ":"); |
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|
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g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
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strcpy(g_rdpdr_device[*id].local_path, pos2); |
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printf("DISK %s to %s\n", g_rdpdr_device[*id].name, g_rdpdr_device[*id].local_path); |
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g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK; |
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count++; |
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(*id)++; |
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|
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optarg = pos; |
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} |
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return count; |
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} |
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|
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/* Opens of creates a file or directory */ |
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NTSTATUS |
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disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition, |
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uint32 flags_and_attributes, char *filename, HANDLE * phandle) |
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{ |
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HANDLE handle; |
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DIR *dirp; |
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int flags, mode; |
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char path[256]; |
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|
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handle = 0; |
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dirp = NULL; |
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flags = 0; |
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mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; |
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|
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if (filename[strlen(filename) - 1] == '/') |
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filename[strlen(filename) - 1] = 0; |
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sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename); |
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//printf("Open: %s\n", path); |
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|
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switch (create_disposition) |
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{ |
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case CREATE_ALWAYS: |
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|
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// Delete existing file/link. |
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unlink(path); |
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flags |= O_CREAT; |
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break; |
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|
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case CREATE_NEW: |
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|
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// If the file already exists, then fail. |
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flags |= O_CREAT | O_EXCL; |
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break; |
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|
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case OPEN_ALWAYS: |
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|
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// Create if not already exists. |
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flags |= O_CREAT; |
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break; |
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|
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case OPEN_EXISTING: |
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|
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// Default behaviour |
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break; |
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|
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case TRUNCATE_EXISTING: |
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|
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// If the file does not exist, then fail. |
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flags |= O_TRUNC; |
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break; |
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} |
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|
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if (flags_and_attributes & FILE_DIRECTORY_FILE) |
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{ |
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if (flags & O_CREAT) |
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{ |
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mkdir(path, mode); |
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} |
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|
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dirp = opendir(path); |
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if (!dirp) |
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{ |
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switch (errno) |
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{ |
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case EACCES: |
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|
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return STATUS_ACCESS_DENIED; |
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|
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case ENOENT: |
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|
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return STATUS_NO_SUCH_FILE; |
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|
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default: |
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|
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perror("opendir"); |
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return STATUS_NO_SUCH_FILE; |
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} |
214 |
} |
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handle = dirfd(dirp); /* FIXME: dirfd is not portable */ |
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} |
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else |
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{ |
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if (accessmask & GENERIC_ALL |
220 |
|| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE)) |
221 |
{ |
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flags |= O_RDWR; |
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} |
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else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ)) |
225 |
{ |
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flags |= O_WRONLY; |
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} |
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else |
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{ |
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flags |= O_RDONLY; |
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} |
232 |
|
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handle = open(path, flags, mode); |
234 |
if (handle == -1) |
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{ |
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switch (errno) |
237 |
{ |
238 |
case EACCES: |
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|
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return STATUS_ACCESS_DENIED; |
241 |
|
242 |
case ENOENT: |
243 |
|
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return STATUS_NO_SUCH_FILE; |
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|
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default: |
247 |
|
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perror("open"); |
249 |
return STATUS_NO_SUCH_FILE; |
250 |
} |
251 |
} |
252 |
} |
253 |
|
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if (handle >= MAX_OPEN_FILES) |
255 |
{ |
256 |
error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n", |
257 |
handle); |
258 |
exit(1); |
259 |
} |
260 |
|
261 |
if (dirp) |
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g_fileinfo[handle].pdir = dirp; |
263 |
g_fileinfo[handle].device_id = device_id; |
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g_fileinfo[handle].flags_and_attributes = flags_and_attributes; |
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strncpy(g_fileinfo[handle].path, path, 255); |
266 |
|
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*phandle = handle; |
268 |
return STATUS_SUCCESS; |
269 |
} |
270 |
|
271 |
NTSTATUS |
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disk_close(HANDLE handle) |
273 |
{ |
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struct fileinfo *pfinfo; |
275 |
|
276 |
pfinfo = &(g_fileinfo[handle]); |
277 |
|
278 |
if (pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE) |
279 |
{ |
280 |
closedir(pfinfo->pdir); |
281 |
//FIXME: Should check exit code |
282 |
} |
283 |
else |
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{ |
285 |
close(handle); |
286 |
} |
287 |
|
288 |
return STATUS_SUCCESS; |
289 |
} |
290 |
|
291 |
NTSTATUS |
292 |
disk_read(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
293 |
{ |
294 |
int n; |
295 |
|
296 |
if (offset) |
297 |
lseek(handle, offset, SEEK_SET); |
298 |
n = read(handle, data, length); |
299 |
|
300 |
if (n < 0) |
301 |
{ |
302 |
perror("read"); |
303 |
*result = 0; |
304 |
return STATUS_INVALID_PARAMETER; |
305 |
} |
306 |
|
307 |
*result = n; |
308 |
|
309 |
return STATUS_SUCCESS; |
310 |
} |
311 |
|
312 |
NTSTATUS |
313 |
disk_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
314 |
{ |
315 |
int n; |
316 |
|
317 |
if (offset) |
318 |
lseek(handle, offset, SEEK_SET); |
319 |
|
320 |
n = write(handle, data, length); |
321 |
|
322 |
if (n < 0) |
323 |
{ |
324 |
perror("write"); |
325 |
*result = 0; |
326 |
return STATUS_ACCESS_DENIED; |
327 |
} |
328 |
|
329 |
*result = n; |
330 |
|
331 |
return STATUS_SUCCESS; |
332 |
} |
333 |
|
334 |
NTSTATUS |
335 |
disk_query_information(HANDLE handle, uint32 info_class, STREAM out) |
336 |
{ |
337 |
uint32 file_attributes, ft_high, ft_low; |
338 |
struct stat filestat; |
339 |
char *path, *filename; |
340 |
|
341 |
path = g_fileinfo[handle].path; |
342 |
|
343 |
// Get information about file |
344 |
if (fstat(handle, &filestat) != 0) |
345 |
{ |
346 |
perror("stat"); |
347 |
out_uint8(out, 0); |
348 |
return STATUS_ACCESS_DENIED; |
349 |
} |
350 |
|
351 |
// Set file attributes |
352 |
file_attributes = 0; |
353 |
if (S_ISDIR(filestat.st_mode)) |
354 |
{ |
355 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
356 |
} |
357 |
filename = 1 + strrchr(path, '/'); |
358 |
if (filename && filename[0] == '.') |
359 |
{ |
360 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
361 |
} |
362 |
|
363 |
// Return requested data |
364 |
switch (info_class) |
365 |
{ |
366 |
case 4: /* FileBasicInformation */ |
367 |
|
368 |
out_uint8s(out, 8); //create_time not available; |
369 |
|
370 |
seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low); |
371 |
out_uint32_le(out, ft_low); //last_access_time |
372 |
out_uint32_le(out, ft_high); |
373 |
|
374 |
seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low); |
375 |
out_uint32_le(out, ft_low); //last_write_time |
376 |
out_uint32_le(out, ft_high); |
377 |
|
378 |
out_uint8s(out, 8); //unknown zero |
379 |
out_uint32_le(out, file_attributes); |
380 |
break; |
381 |
|
382 |
case 5: /* FileStandardInformation */ |
383 |
|
384 |
out_uint32_le(out, filestat.st_size); //Allocation size |
385 |
out_uint32_le(out, 0); |
386 |
out_uint32_le(out, filestat.st_size); //End of file |
387 |
out_uint32_le(out, 0); |
388 |
out_uint32_le(out, filestat.st_nlink); //Number of links |
389 |
out_uint8(out, 0); //Delete pending |
390 |
out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); //Directory |
391 |
break; |
392 |
|
393 |
case 35: /* FileObjectIdInformation */ |
394 |
|
395 |
out_uint32_le(out, file_attributes); /* File Attributes */ |
396 |
out_uint32_le(out, 0); /* Reparse Tag */ |
397 |
break; |
398 |
|
399 |
default: |
400 |
|
401 |
unimpl("IRP Query (File) Information class: 0x%x\n", info_class); |
402 |
return STATUS_INVALID_PARAMETER; |
403 |
} |
404 |
return STATUS_SUCCESS; |
405 |
} |
406 |
|
407 |
NTSTATUS |
408 |
disk_set_information(HANDLE handle, uint32 info_class, STREAM in, STREAM out) |
409 |
{ |
410 |
uint32 device_id, length, file_attributes, ft_high, ft_low; |
411 |
char newname[256], fullpath[256]; |
412 |
struct fileinfo *pfinfo; |
413 |
|
414 |
pfinfo = &(g_fileinfo[handle]); |
415 |
|
416 |
switch (info_class) |
417 |
{ |
418 |
case 4: /* FileBasicInformation */ |
419 |
|
420 |
// Probably safe to ignore |
421 |
break; |
422 |
|
423 |
case 10: /* FileRenameInformation */ |
424 |
|
425 |
in_uint8s(in, 4); /* Handle of root dir? */ |
426 |
in_uint8s(in, 0x1a); /* unknown */ |
427 |
in_uint32_le(in, length); |
428 |
|
429 |
if (length && (length / 2) < 256) |
430 |
{ |
431 |
rdp_in_unistr(in, newname, length); |
432 |
convert_to_unix_filename(newname); |
433 |
} |
434 |
else |
435 |
{ |
436 |
return STATUS_INVALID_PARAMETER; |
437 |
} |
438 |
|
439 |
sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path, |
440 |
newname); |
441 |
|
442 |
if (rename(pfinfo->path, fullpath) != 0) |
443 |
{ |
444 |
perror("rename"); |
445 |
return STATUS_ACCESS_DENIED; |
446 |
} |
447 |
break; |
448 |
|
449 |
case 13: /* FileDispositionInformation */ |
450 |
|
451 |
//unimpl("IRP Set File Information class: FileDispositionInformation\n"); |
452 |
// in_uint32_le(in, delete_on_close); |
453 |
// disk_close(handle); |
454 |
unlink(pfinfo->path); |
455 |
break; |
456 |
|
457 |
case 19: /* FileAllocationInformation */ |
458 |
|
459 |
unimpl("IRP Set File Information class: FileAllocationInformation\n"); |
460 |
break; |
461 |
|
462 |
case 20: /* FileEndOfFileInformation */ |
463 |
|
464 |
unimpl("IRP Set File Information class: FileEndOfFileInformation\n"); |
465 |
break; |
466 |
|
467 |
default: |
468 |
|
469 |
unimpl("IRP Set File Information class: 0x%x\n", info_class); |
470 |
return STATUS_INVALID_PARAMETER; |
471 |
} |
472 |
return STATUS_SUCCESS; |
473 |
} |
474 |
|
475 |
NTSTATUS |
476 |
disk_query_volume_information(HANDLE handle, uint32 info_class, STREAM out) |
477 |
{ |
478 |
char *volume, *fs_type; |
479 |
struct statfs stat_fs; |
480 |
struct fileinfo *pfinfo; |
481 |
|
482 |
pfinfo = &(g_fileinfo[handle]); |
483 |
volume = "RDESKTOP"; |
484 |
fs_type = "RDPFS"; |
485 |
|
486 |
if (statfs(pfinfo->path, &stat_fs) != 0) /* FIXME: statfs is not portable */ |
487 |
{ |
488 |
perror("statfs"); |
489 |
return STATUS_ACCESS_DENIED; |
490 |
} |
491 |
|
492 |
switch (info_class) |
493 |
{ |
494 |
case 1: /* FileFsVolumeInformation */ |
495 |
|
496 |
out_uint32_le(out, 0); /* volume creation time low */ |
497 |
out_uint32_le(out, 0); /* volume creation time high */ |
498 |
out_uint32_le(out, 0); /* serial */ |
499 |
out_uint32_le(out, 2 * strlen(volume)); /* length of string */ |
500 |
out_uint8(out, 0); /* support objects? */ |
501 |
rdp_out_unistr(out, volume, 2 * strlen(volume) - 2); |
502 |
break; |
503 |
|
504 |
case 3: /* FileFsSizeInformation */ |
505 |
|
506 |
out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */ |
507 |
out_uint32_le(out, 0); /* Total allocation high units */ |
508 |
out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */ |
509 |
out_uint32_le(out, 0); /* Available allowcation units */ |
510 |
out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */ |
511 |
out_uint32_le(out, 0x200); /* Bytes per sector */ |
512 |
break; |
513 |
|
514 |
case 5: /* FileFsAttributeInformation */ |
515 |
|
516 |
out_uint32_le(out, FS_CASE_SENSITIVE | FS_CASE_IS_PRESERVED); /* fs attributes */ |
517 |
out_uint32_le(out, stat_fs.f_namelen); /* max length of filename */ |
518 |
out_uint32_le(out, 2 * strlen(fs_type)); /* length of fs_type */ |
519 |
rdp_out_unistr(out, fs_type, 2 * strlen(fs_type) - 2); |
520 |
break; |
521 |
|
522 |
case 2: /* FileFsLabelInformation */ |
523 |
case 4: /* FileFsDeviceInformation */ |
524 |
case 6: /* FileFsControlInformation */ |
525 |
case 7: /* FileFsFullSizeInformation */ |
526 |
case 8: /* FileFsObjectIdInformation */ |
527 |
case 9: /* FileFsMaximumInformation */ |
528 |
default: |
529 |
|
530 |
unimpl("IRP Query Volume Information class: 0x%x\n", info_class); |
531 |
return STATUS_INVALID_PARAMETER; |
532 |
} |
533 |
return STATUS_SUCCESS; |
534 |
} |
535 |
|
536 |
NTSTATUS |
537 |
disk_query_directory(HANDLE handle, uint32 info_class, char *pattern, STREAM out) |
538 |
{ |
539 |
uint32 file_attributes, ft_low, ft_high; |
540 |
char *dirname, fullpath[256]; |
541 |
DIR *pdir; |
542 |
struct dirent *pdirent; |
543 |
struct stat fstat; |
544 |
struct fileinfo *pfinfo; |
545 |
|
546 |
pfinfo = &(g_fileinfo[handle]); |
547 |
pdir = pfinfo->pdir; |
548 |
dirname = pfinfo->path; |
549 |
file_attributes = 0; |
550 |
|
551 |
switch (info_class) |
552 |
{ |
553 |
case 3: //FIXME: Why 3? |
554 |
|
555 |
// If a search pattern is received, remember this pattern, and restart search |
556 |
if (pattern[0] != 0) |
557 |
{ |
558 |
strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64); |
559 |
rewinddir(pdir); |
560 |
} |
561 |
|
562 |
// find next dirent matching pattern |
563 |
pdirent = readdir(pdir); |
564 |
while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0) |
565 |
{ |
566 |
pdirent = readdir(pdir); |
567 |
} |
568 |
|
569 |
if (pdirent == NULL) |
570 |
{ |
571 |
return STATUS_NO_MORE_FILES; |
572 |
} |
573 |
|
574 |
// Get information for directory entry |
575 |
sprintf(fullpath, "%s/%s", dirname, pdirent->d_name); |
576 |
/* JIF |
577 |
printf("Stat: %s\n", fullpath); */ |
578 |
if (stat(fullpath, &fstat)) |
579 |
{ |
580 |
perror("stat"); |
581 |
out_uint8(out, 0); |
582 |
return STATUS_ACCESS_DENIED; |
583 |
} |
584 |
|
585 |
if (S_ISDIR(fstat.st_mode)) |
586 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
587 |
if (pdirent->d_name[0] == '.') |
588 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
589 |
|
590 |
// Return requested information |
591 |
out_uint8s(out, 8); //unknown zero |
592 |
out_uint8s(out, 8); //create_time not available in posix; |
593 |
|
594 |
seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low); |
595 |
out_uint32_le(out, ft_low); //last_access_time |
596 |
out_uint32_le(out, ft_high); |
597 |
|
598 |
seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low); |
599 |
out_uint32_le(out, ft_low); //last_write_time |
600 |
out_uint32_le(out, ft_high); |
601 |
|
602 |
out_uint8s(out, 8); //unknown zero |
603 |
out_uint32_le(out, fstat.st_size); //filesize low |
604 |
out_uint32_le(out, 0); //filesize high |
605 |
out_uint32_le(out, fstat.st_size); //filesize low |
606 |
out_uint32_le(out, 0); //filesize high |
607 |
out_uint32_le(out, file_attributes); |
608 |
out_uint8(out, 2 * strlen(pdirent->d_name) + 2); //unicode length |
609 |
out_uint8s(out, 7); //pad? |
610 |
out_uint8(out, 0); //8.3 file length |
611 |
out_uint8s(out, 2 * 12); //8.3 unicode length |
612 |
rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name)); |
613 |
break; |
614 |
|
615 |
default: |
616 |
|
617 |
unimpl("IRP Query Directory sub: 0x%x\n", info_class); |
618 |
return STATUS_INVALID_PARAMETER; |
619 |
} |
620 |
|
621 |
return STATUS_SUCCESS; |
622 |
} |
623 |
|
624 |
DEVICE_FNS disk_fns = { |
625 |
disk_create, |
626 |
disk_close, |
627 |
disk_read, |
628 |
disk_write, |
629 |
NULL /* device_control */ |
630 |
}; |