1 |
/* -*- c-basic-offset: 8 -*- |
2 |
rdesktop: A Remote Desktop Protocol client. |
3 |
Disk Redirection |
4 |
Copyright (C) Jeroen Meijer 2003 |
5 |
|
6 |
This program is free software; you can redistribute it and/or modify |
7 |
it under the terms of the GNU General Public License as published by |
8 |
the Free Software Foundation; either version 2 of the License, or |
9 |
(at your option) any later version. |
10 |
|
11 |
This program is distributed in the hope that it will be useful, |
12 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
GNU General Public License for more details. |
15 |
|
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You should have received a copy of the GNU General Public License |
17 |
along with this program; if not, write to the Free Software |
18 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
19 |
*/ |
20 |
|
21 |
#include "disk.h" |
22 |
|
23 |
#include <sys/types.h> |
24 |
#include <sys/stat.h> |
25 |
#include <unistd.h> |
26 |
#include <fcntl.h> /* open, close */ |
27 |
#include <dirent.h> /* opendir, closedir, readdir */ |
28 |
#include <fnmatch.h> |
29 |
#include <errno.h> /* errno */ |
30 |
|
31 |
#include <utime.h> |
32 |
#include <time.h> /* ctime */ |
33 |
|
34 |
#if (defined(HAVE_DIRFD) || (HAVE_DECL_DIRFD == 1)) |
35 |
#define DIRFD(a) (dirfd(a)) |
36 |
#else |
37 |
#define DIRFD(a) ((a)->DIR_FD_MEMBER_NAME) |
38 |
#endif |
39 |
|
40 |
/* TODO: let autoconf figure out everything below... */ |
41 |
#if (defined(sun) && (defined(__svr4__) || defined(__SVR4))) |
42 |
#define SOLARIS |
43 |
#endif |
44 |
|
45 |
#if (defined(SOLARIS) || defined (__hpux) || defined(__BEOS__)) |
46 |
#include <sys/statvfs.h> /* solaris statvfs */ |
47 |
/* TODO: Fix mntent-handling for solaris/hpux |
48 |
* #include <sys/mntent.h> */ |
49 |
#undef HAVE_MNTENT_H |
50 |
#define MNTENT_PATH "/etc/mnttab" |
51 |
#define STATFS_FN(path, buf) (statvfs(path,buf)) |
52 |
#define STATFS_T statvfs |
53 |
#define F_NAMELEN(buf) ((buf).f_namemax) |
54 |
|
55 |
#elif (defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__APPLE__)) |
56 |
#include <sys/param.h> |
57 |
#include <sys/mount.h> |
58 |
#define STATFS_FN(path, buf) (statfs(path,buf)) |
59 |
#define STATFS_T statfs |
60 |
#define F_NAMELEN(buf) (NAME_MAX) |
61 |
|
62 |
#elif (defined(__SGI_IRIX__)) |
63 |
#include <sys/types.h> |
64 |
#include <sys/statvfs.h> |
65 |
#define STATFS_FN(path, buf) (statvfs(path,buf)) |
66 |
#define STATFS_T statvfs |
67 |
#define F_NAMELEN(buf) ((buf).f_namemax) |
68 |
|
69 |
#elif (defined(__alpha) && !defined(linux)) |
70 |
#include <sys/mount.h> /* osf1 statfs */ |
71 |
#define STATFS_FN(path, buf) (statfs(path,buf,sizeof(buf))) |
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#define STATFS_T statfs |
73 |
#define F_NAMELEN(buf) (255) |
74 |
|
75 |
#else |
76 |
#include <sys/vfs.h> /* linux statfs */ |
77 |
#include <mntent.h> |
78 |
#define HAVE_MNTENT_H |
79 |
#define MNTENT_PATH "/etc/mtab" |
80 |
#define STATFS_FN(path, buf) (statfs(path,buf)) |
81 |
#define STATFS_T statfs |
82 |
#define F_NAMELEN(buf) ((buf).f_namelen) |
83 |
#endif |
84 |
|
85 |
#include "rdesktop.h" |
86 |
|
87 |
extern RDPDR_DEVICE g_rdpdr_device[]; |
88 |
|
89 |
FILEINFO g_fileinfo[MAX_OPEN_FILES]; |
90 |
BOOL g_notify_stamp = False; |
91 |
|
92 |
typedef struct |
93 |
{ |
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char name[256]; |
95 |
char label[256]; |
96 |
unsigned long serial; |
97 |
char type[256]; |
98 |
} FsInfoType; |
99 |
|
100 |
static NTSTATUS NotifyInfo(NTHANDLE handle, uint32 info_class, NOTIFY * p); |
101 |
|
102 |
static time_t |
103 |
get_create_time(struct stat *st) |
104 |
{ |
105 |
time_t ret, ret1; |
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|
107 |
ret = MIN(st->st_ctime, st->st_mtime); |
108 |
ret1 = MIN(ret, st->st_atime); |
109 |
|
110 |
if (ret1 != (time_t) 0) |
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return ret1; |
112 |
|
113 |
return ret; |
114 |
} |
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|
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/* Convert seconds since 1970 to a filetime */ |
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static 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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} |
126 |
|
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/* Convert seconds since 1970 back to filetime */ |
128 |
static time_t |
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convert_1970_to_filetime(uint32 high, uint32 low) |
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{ |
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unsigned long long ticks; |
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time_t val; |
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|
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ticks = low + (((unsigned long long) high) << 32); |
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ticks /= 10000000; |
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ticks -= 11644473600LL; |
137 |
|
138 |
val = (time_t) ticks; |
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return (val); |
140 |
|
141 |
} |
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|
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/* A wrapper for ftruncate which supports growing files, even if the |
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native ftruncate doesn't. This is needed on Linux FAT filesystems, |
145 |
for example. */ |
146 |
static int |
147 |
ftruncate_growable(int fd, off_t length) |
148 |
{ |
149 |
int ret; |
150 |
off_t pos; |
151 |
static const char zero; |
152 |
|
153 |
/* Try the simple method first */ |
154 |
if ((ret = ftruncate(fd, length)) != -1) |
155 |
{ |
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return ret; |
157 |
} |
158 |
|
159 |
/* |
160 |
* Some kind of error. Perhaps we were trying to grow. Retry |
161 |
* in a safe way. |
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*/ |
163 |
|
164 |
/* Get current position */ |
165 |
if ((pos = lseek(fd, 0, SEEK_CUR)) == -1) |
166 |
{ |
167 |
perror("lseek"); |
168 |
return -1; |
169 |
} |
170 |
|
171 |
/* Seek to new size */ |
172 |
if (lseek(fd, length, SEEK_SET) == -1) |
173 |
{ |
174 |
perror("lseek"); |
175 |
return -1; |
176 |
} |
177 |
|
178 |
/* Write a zero */ |
179 |
if (write(fd, &zero, 1) == -1) |
180 |
{ |
181 |
perror("write"); |
182 |
return -1; |
183 |
} |
184 |
|
185 |
/* Truncate. This shouldn't fail. */ |
186 |
if (ftruncate(fd, length) == -1) |
187 |
{ |
188 |
perror("ftruncate"); |
189 |
return -1; |
190 |
} |
191 |
|
192 |
/* Restore position */ |
193 |
if (lseek(fd, pos, SEEK_SET) == -1) |
194 |
{ |
195 |
perror("lseek"); |
196 |
return -1; |
197 |
} |
198 |
|
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return 0; |
200 |
} |
201 |
|
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/* Just like open(2), but if a open with O_EXCL fails, retry with |
203 |
GUARDED semantics. This might be necessary because some filesystems |
204 |
(such as NFS filesystems mounted from a unfsd server) doesn't |
205 |
support O_EXCL. GUARDED semantics are subject to race conditions, |
206 |
but we can live with that. |
207 |
*/ |
208 |
static int |
209 |
open_weak_exclusive(const char *pathname, int flags, mode_t mode) |
210 |
{ |
211 |
int ret; |
212 |
struct stat statbuf; |
213 |
|
214 |
ret = open(pathname, flags, mode); |
215 |
if (ret != -1 || !(flags & O_EXCL)) |
216 |
{ |
217 |
/* Success, or not using O_EXCL */ |
218 |
return ret; |
219 |
} |
220 |
|
221 |
/* An error occured, and we are using O_EXCL. In case the FS |
222 |
doesn't support O_EXCL, some kind of error will be |
223 |
returned. Unfortunately, we don't know which one. Linux |
224 |
2.6.8 seems to return 524, but I cannot find a documented |
225 |
#define for this case. So, we'll return only on errors that |
226 |
we know aren't related to O_EXCL. */ |
227 |
switch (errno) |
228 |
{ |
229 |
case EACCES: |
230 |
case EEXIST: |
231 |
case EINTR: |
232 |
case EISDIR: |
233 |
case ELOOP: |
234 |
case ENAMETOOLONG: |
235 |
case ENOENT: |
236 |
case ENOTDIR: |
237 |
return ret; |
238 |
} |
239 |
|
240 |
/* Retry with GUARDED semantics */ |
241 |
if (stat(pathname, &statbuf) != -1) |
242 |
{ |
243 |
/* File exists */ |
244 |
errno = EEXIST; |
245 |
return -1; |
246 |
} |
247 |
else |
248 |
{ |
249 |
return open(pathname, flags & ~O_EXCL, mode); |
250 |
} |
251 |
} |
252 |
|
253 |
/* Enumeration of devices from rdesktop.c */ |
254 |
/* returns numer of units found and initialized. */ |
255 |
/* optarg looks like ':h=/mnt/floppy,b=/mnt/usbdevice1' */ |
256 |
/* when it arrives to this function. */ |
257 |
int |
258 |
disk_enum_devices(uint32 * id, char *optarg) |
259 |
{ |
260 |
char *pos = optarg; |
261 |
char *pos2; |
262 |
int count = 0; |
263 |
|
264 |
// skip the first colon |
265 |
optarg++; |
266 |
while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
267 |
{ |
268 |
pos2 = next_arg(optarg, '='); |
269 |
|
270 |
strncpy(g_rdpdr_device[*id].name, optarg, sizeof(g_rdpdr_device[*id].name)); |
271 |
if (strlen(optarg) > 8) |
272 |
fprintf(stderr, "share name %s truncated to %s\n", optarg, |
273 |
g_rdpdr_device[*id].name); |
274 |
|
275 |
g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
276 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
277 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK; |
278 |
count++; |
279 |
(*id)++; |
280 |
|
281 |
optarg = pos; |
282 |
} |
283 |
return count; |
284 |
} |
285 |
|
286 |
/* Opens or creates a file or directory */ |
287 |
static NTSTATUS |
288 |
disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition, |
289 |
uint32 flags_and_attributes, char *filename, NTHANDLE * phandle) |
290 |
{ |
291 |
NTHANDLE handle; |
292 |
DIR *dirp; |
293 |
int flags, mode; |
294 |
char path[256]; |
295 |
struct stat filestat; |
296 |
|
297 |
handle = 0; |
298 |
dirp = NULL; |
299 |
flags = 0; |
300 |
mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; |
301 |
|
302 |
if (*filename && filename[strlen(filename) - 1] == '/') |
303 |
filename[strlen(filename) - 1] = 0; |
304 |
sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename); |
305 |
|
306 |
switch (create_disposition) |
307 |
{ |
308 |
case CREATE_ALWAYS: |
309 |
|
310 |
// Delete existing file/link. |
311 |
unlink(path); |
312 |
flags |= O_CREAT; |
313 |
break; |
314 |
|
315 |
case CREATE_NEW: |
316 |
|
317 |
// If the file already exists, then fail. |
318 |
flags |= O_CREAT | O_EXCL; |
319 |
break; |
320 |
|
321 |
case OPEN_ALWAYS: |
322 |
|
323 |
// Create if not already exists. |
324 |
flags |= O_CREAT; |
325 |
break; |
326 |
|
327 |
case OPEN_EXISTING: |
328 |
|
329 |
// Default behaviour |
330 |
break; |
331 |
|
332 |
case TRUNCATE_EXISTING: |
333 |
|
334 |
// If the file does not exist, then fail. |
335 |
flags |= O_TRUNC; |
336 |
break; |
337 |
} |
338 |
|
339 |
//printf("Open: \"%s\" flags: %X, accessmask: %X sharemode: %X create disp: %X\n", path, flags_and_attributes, accessmask, sharemode, create_disposition); |
340 |
|
341 |
// Get information about file and set that flag ourselfs |
342 |
if ((stat(path, &filestat) == 0) && (S_ISDIR(filestat.st_mode))) |
343 |
{ |
344 |
if (flags_and_attributes & FILE_NON_DIRECTORY_FILE) |
345 |
return STATUS_FILE_IS_A_DIRECTORY; |
346 |
else |
347 |
flags_and_attributes |= FILE_DIRECTORY_FILE; |
348 |
} |
349 |
|
350 |
if (flags_and_attributes & FILE_DIRECTORY_FILE) |
351 |
{ |
352 |
if (flags & O_CREAT) |
353 |
{ |
354 |
mkdir(path, mode); |
355 |
} |
356 |
|
357 |
dirp = opendir(path); |
358 |
if (!dirp) |
359 |
{ |
360 |
switch (errno) |
361 |
{ |
362 |
case EACCES: |
363 |
|
364 |
return STATUS_ACCESS_DENIED; |
365 |
|
366 |
case ENOENT: |
367 |
|
368 |
return STATUS_NO_SUCH_FILE; |
369 |
|
370 |
default: |
371 |
|
372 |
perror("opendir"); |
373 |
return STATUS_NO_SUCH_FILE; |
374 |
} |
375 |
} |
376 |
handle = DIRFD(dirp); |
377 |
} |
378 |
else |
379 |
{ |
380 |
|
381 |
if (accessmask & GENERIC_ALL |
382 |
|| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE)) |
383 |
{ |
384 |
flags |= O_RDWR; |
385 |
} |
386 |
else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ)) |
387 |
{ |
388 |
flags |= O_WRONLY; |
389 |
} |
390 |
else |
391 |
{ |
392 |
flags |= O_RDONLY; |
393 |
} |
394 |
|
395 |
handle = open_weak_exclusive(path, flags, mode); |
396 |
if (handle == -1) |
397 |
{ |
398 |
switch (errno) |
399 |
{ |
400 |
case EISDIR: |
401 |
|
402 |
return STATUS_FILE_IS_A_DIRECTORY; |
403 |
|
404 |
case EACCES: |
405 |
|
406 |
return STATUS_ACCESS_DENIED; |
407 |
|
408 |
case ENOENT: |
409 |
|
410 |
return STATUS_NO_SUCH_FILE; |
411 |
case EEXIST: |
412 |
|
413 |
return STATUS_OBJECT_NAME_COLLISION; |
414 |
default: |
415 |
|
416 |
perror("open"); |
417 |
return STATUS_NO_SUCH_FILE; |
418 |
} |
419 |
} |
420 |
|
421 |
/* all read and writes of files should be non blocking */ |
422 |
if (fcntl(handle, F_SETFL, O_NONBLOCK) == -1) |
423 |
perror("fcntl"); |
424 |
} |
425 |
|
426 |
if (handle >= MAX_OPEN_FILES) |
427 |
{ |
428 |
error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n", |
429 |
handle); |
430 |
exit(1); |
431 |
} |
432 |
|
433 |
if (dirp) |
434 |
g_fileinfo[handle].pdir = dirp; |
435 |
else |
436 |
g_fileinfo[handle].pdir = NULL; |
437 |
|
438 |
g_fileinfo[handle].device_id = device_id; |
439 |
g_fileinfo[handle].flags_and_attributes = flags_and_attributes; |
440 |
g_fileinfo[handle].accessmask = accessmask; |
441 |
strncpy(g_fileinfo[handle].path, path, 255); |
442 |
g_fileinfo[handle].delete_on_close = False; |
443 |
g_notify_stamp = True; |
444 |
|
445 |
*phandle = handle; |
446 |
return STATUS_SUCCESS; |
447 |
} |
448 |
|
449 |
static NTSTATUS |
450 |
disk_close(NTHANDLE handle) |
451 |
{ |
452 |
struct fileinfo *pfinfo; |
453 |
|
454 |
pfinfo = &(g_fileinfo[handle]); |
455 |
|
456 |
g_notify_stamp = True; |
457 |
|
458 |
rdpdr_abort_io(handle, 0, STATUS_CANCELLED); |
459 |
|
460 |
if (pfinfo->pdir) |
461 |
{ |
462 |
if (closedir(pfinfo->pdir) < 0) |
463 |
{ |
464 |
perror("closedir"); |
465 |
return STATUS_INVALID_HANDLE; |
466 |
} |
467 |
|
468 |
if (pfinfo->delete_on_close) |
469 |
if (rmdir(pfinfo->path) < 0) |
470 |
{ |
471 |
perror(pfinfo->path); |
472 |
return STATUS_ACCESS_DENIED; |
473 |
} |
474 |
pfinfo->delete_on_close = False; |
475 |
} |
476 |
else |
477 |
{ |
478 |
if (close(handle) < 0) |
479 |
{ |
480 |
perror("close"); |
481 |
return STATUS_INVALID_HANDLE; |
482 |
} |
483 |
if (pfinfo->delete_on_close) |
484 |
if (unlink(pfinfo->path) < 0) |
485 |
{ |
486 |
perror(pfinfo->path); |
487 |
return STATUS_ACCESS_DENIED; |
488 |
} |
489 |
|
490 |
pfinfo->delete_on_close = False; |
491 |
} |
492 |
|
493 |
return STATUS_SUCCESS; |
494 |
} |
495 |
|
496 |
static NTSTATUS |
497 |
disk_read(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
498 |
{ |
499 |
int n; |
500 |
|
501 |
#if 0 |
502 |
/* browsing dir ???? */ |
503 |
/* each request is 24 bytes */ |
504 |
if (g_fileinfo[handle].flags_and_attributes & FILE_DIRECTORY_FILE) |
505 |
{ |
506 |
*result = 0; |
507 |
return STATUS_SUCCESS; |
508 |
} |
509 |
#endif |
510 |
|
511 |
lseek(handle, offset, SEEK_SET); |
512 |
|
513 |
n = read(handle, data, length); |
514 |
|
515 |
if (n < 0) |
516 |
{ |
517 |
*result = 0; |
518 |
switch (errno) |
519 |
{ |
520 |
case EISDIR: |
521 |
/* Implement 24 Byte directory read ?? |
522 |
with STATUS_NOT_IMPLEMENTED server doesn't read again */ |
523 |
/* return STATUS_FILE_IS_A_DIRECTORY; */ |
524 |
return STATUS_NOT_IMPLEMENTED; |
525 |
default: |
526 |
perror("read"); |
527 |
return STATUS_INVALID_PARAMETER; |
528 |
} |
529 |
} |
530 |
|
531 |
*result = n; |
532 |
|
533 |
return STATUS_SUCCESS; |
534 |
} |
535 |
|
536 |
static NTSTATUS |
537 |
disk_write(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
538 |
{ |
539 |
int n; |
540 |
|
541 |
lseek(handle, offset, SEEK_SET); |
542 |
|
543 |
n = write(handle, data, length); |
544 |
|
545 |
if (n < 0) |
546 |
{ |
547 |
perror("write"); |
548 |
*result = 0; |
549 |
switch (errno) |
550 |
{ |
551 |
case ENOSPC: |
552 |
return STATUS_DISK_FULL; |
553 |
default: |
554 |
return STATUS_ACCESS_DENIED; |
555 |
} |
556 |
} |
557 |
|
558 |
*result = n; |
559 |
|
560 |
return STATUS_SUCCESS; |
561 |
} |
562 |
|
563 |
NTSTATUS |
564 |
disk_query_information(NTHANDLE handle, uint32 info_class, STREAM out) |
565 |
{ |
566 |
uint32 file_attributes, ft_high, ft_low; |
567 |
struct stat filestat; |
568 |
char *path, *filename; |
569 |
|
570 |
path = g_fileinfo[handle].path; |
571 |
|
572 |
// Get information about file |
573 |
if (fstat(handle, &filestat) != 0) |
574 |
{ |
575 |
perror("stat"); |
576 |
out_uint8(out, 0); |
577 |
return STATUS_ACCESS_DENIED; |
578 |
} |
579 |
|
580 |
// Set file attributes |
581 |
file_attributes = 0; |
582 |
if (S_ISDIR(filestat.st_mode)) |
583 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
584 |
|
585 |
filename = 1 + strrchr(path, '/'); |
586 |
if (filename && filename[0] == '.') |
587 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
588 |
|
589 |
if (!file_attributes) |
590 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
591 |
|
592 |
if (!(filestat.st_mode & S_IWUSR)) |
593 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
594 |
|
595 |
// Return requested data |
596 |
switch (info_class) |
597 |
{ |
598 |
case FileBasicInformation: |
599 |
seconds_since_1970_to_filetime(get_create_time(&filestat), &ft_high, |
600 |
&ft_low); |
601 |
out_uint32_le(out, ft_low); //create_access_time |
602 |
out_uint32_le(out, ft_high); |
603 |
|
604 |
seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low); |
605 |
out_uint32_le(out, ft_low); //last_access_time |
606 |
out_uint32_le(out, ft_high); |
607 |
|
608 |
seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low); |
609 |
out_uint32_le(out, ft_low); //last_write_time |
610 |
out_uint32_le(out, ft_high); |
611 |
|
612 |
seconds_since_1970_to_filetime(filestat.st_ctime, &ft_high, &ft_low); |
613 |
out_uint32_le(out, ft_low); //last_change_time |
614 |
out_uint32_le(out, ft_high); |
615 |
|
616 |
out_uint32_le(out, file_attributes); |
617 |
break; |
618 |
|
619 |
case FileStandardInformation: |
620 |
|
621 |
out_uint32_le(out, filestat.st_size); //Allocation size |
622 |
out_uint32_le(out, 0); |
623 |
out_uint32_le(out, filestat.st_size); //End of file |
624 |
out_uint32_le(out, 0); |
625 |
out_uint32_le(out, filestat.st_nlink); //Number of links |
626 |
out_uint8(out, 0); //Delete pending |
627 |
out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); //Directory |
628 |
break; |
629 |
|
630 |
case FileObjectIdInformation: |
631 |
|
632 |
out_uint32_le(out, file_attributes); /* File Attributes */ |
633 |
out_uint32_le(out, 0); /* Reparse Tag */ |
634 |
break; |
635 |
|
636 |
default: |
637 |
|
638 |
unimpl("IRP Query (File) Information class: 0x%x\n", info_class); |
639 |
return STATUS_INVALID_PARAMETER; |
640 |
} |
641 |
return STATUS_SUCCESS; |
642 |
} |
643 |
|
644 |
NTSTATUS |
645 |
disk_set_information(NTHANDLE handle, uint32 info_class, STREAM in, STREAM out) |
646 |
{ |
647 |
uint32 length, file_attributes, ft_high, ft_low, delete_on_close; |
648 |
char newname[256], fullpath[256]; |
649 |
struct fileinfo *pfinfo; |
650 |
int mode; |
651 |
struct stat filestat; |
652 |
time_t write_time, change_time, access_time, mod_time; |
653 |
struct utimbuf tvs; |
654 |
struct STATFS_T stat_fs; |
655 |
|
656 |
pfinfo = &(g_fileinfo[handle]); |
657 |
g_notify_stamp = True; |
658 |
|
659 |
switch (info_class) |
660 |
{ |
661 |
case FileBasicInformation: |
662 |
write_time = change_time = access_time = 0; |
663 |
|
664 |
in_uint8s(in, 4); /* Handle of root dir? */ |
665 |
in_uint8s(in, 24); /* unknown */ |
666 |
|
667 |
// CreationTime |
668 |
in_uint32_le(in, ft_low); |
669 |
in_uint32_le(in, ft_high); |
670 |
|
671 |
// AccessTime |
672 |
in_uint32_le(in, ft_low); |
673 |
in_uint32_le(in, ft_high); |
674 |
if (ft_low || ft_high) |
675 |
access_time = convert_1970_to_filetime(ft_high, ft_low); |
676 |
|
677 |
// WriteTime |
678 |
in_uint32_le(in, ft_low); |
679 |
in_uint32_le(in, ft_high); |
680 |
if (ft_low || ft_high) |
681 |
write_time = convert_1970_to_filetime(ft_high, ft_low); |
682 |
|
683 |
// ChangeTime |
684 |
in_uint32_le(in, ft_low); |
685 |
in_uint32_le(in, ft_high); |
686 |
if (ft_low || ft_high) |
687 |
change_time = convert_1970_to_filetime(ft_high, ft_low); |
688 |
|
689 |
in_uint32_le(in, file_attributes); |
690 |
|
691 |
if (fstat(handle, &filestat)) |
692 |
return STATUS_ACCESS_DENIED; |
693 |
|
694 |
tvs.modtime = filestat.st_mtime; |
695 |
tvs.actime = filestat.st_atime; |
696 |
if (access_time) |
697 |
tvs.actime = access_time; |
698 |
|
699 |
|
700 |
if (write_time || change_time) |
701 |
mod_time = MIN(write_time, change_time); |
702 |
else |
703 |
mod_time = write_time ? write_time : change_time; |
704 |
|
705 |
if (mod_time) |
706 |
tvs.modtime = mod_time; |
707 |
|
708 |
|
709 |
if (access_time || write_time || change_time) |
710 |
{ |
711 |
#if WITH_DEBUG_RDP5 |
712 |
printf("FileBasicInformation access time %s", |
713 |
ctime(&tvs.actime)); |
714 |
printf("FileBasicInformation modification time %s", |
715 |
ctime(&tvs.modtime)); |
716 |
#endif |
717 |
if (utime(pfinfo->path, &tvs) && errno != EPERM) |
718 |
return STATUS_ACCESS_DENIED; |
719 |
} |
720 |
|
721 |
if (!file_attributes) |
722 |
break; // not valid |
723 |
|
724 |
mode = filestat.st_mode; |
725 |
|
726 |
if (file_attributes & FILE_ATTRIBUTE_READONLY) |
727 |
mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); |
728 |
else |
729 |
mode |= S_IWUSR; |
730 |
|
731 |
mode &= 0777; |
732 |
#if WITH_DEBUG_RDP5 |
733 |
printf("FileBasicInformation set access mode 0%o", mode); |
734 |
#endif |
735 |
|
736 |
if (fchmod(handle, mode)) |
737 |
return STATUS_ACCESS_DENIED; |
738 |
|
739 |
break; |
740 |
|
741 |
case FileRenameInformation: |
742 |
|
743 |
in_uint8s(in, 4); /* Handle of root dir? */ |
744 |
in_uint8s(in, 0x1a); /* unknown */ |
745 |
in_uint32_le(in, length); |
746 |
|
747 |
if (length && (length / 2) < 256) |
748 |
{ |
749 |
rdp_in_unistr(in, newname, length); |
750 |
convert_to_unix_filename(newname); |
751 |
} |
752 |
else |
753 |
{ |
754 |
return STATUS_INVALID_PARAMETER; |
755 |
} |
756 |
|
757 |
sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path, |
758 |
newname); |
759 |
|
760 |
if (rename(pfinfo->path, fullpath) != 0) |
761 |
{ |
762 |
perror("rename"); |
763 |
return STATUS_ACCESS_DENIED; |
764 |
} |
765 |
break; |
766 |
|
767 |
case FileDispositionInformation: |
768 |
/* As far as I understand it, the correct |
769 |
thing to do here is to *schedule* a delete, |
770 |
so it will be deleted when the file is |
771 |
closed. Subsequent |
772 |
FileDispositionInformation requests with |
773 |
DeleteFile set to FALSE should unschedule |
774 |
the delete. See |
775 |
http://www.osronline.com/article.cfm?article=245. */ |
776 |
|
777 |
in_uint32_le(in, delete_on_close); |
778 |
|
779 |
if (delete_on_close || |
780 |
(pfinfo-> |
781 |
accessmask & (FILE_DELETE_ON_CLOSE | FILE_COMPLETE_IF_OPLOCKED))) |
782 |
{ |
783 |
pfinfo->delete_on_close = True; |
784 |
} |
785 |
|
786 |
break; |
787 |
|
788 |
case FileAllocationInformation: |
789 |
/* Fall through to FileEndOfFileInformation, |
790 |
which uses ftrunc. This is like Samba with |
791 |
"strict allocation = false", and means that |
792 |
we won't detect out-of-quota errors, for |
793 |
example. */ |
794 |
|
795 |
case FileEndOfFileInformation: |
796 |
in_uint8s(in, 28); /* unknown */ |
797 |
in_uint32_le(in, length); /* file size */ |
798 |
|
799 |
/* prevents start of writing if not enough space left on device */ |
800 |
if (STATFS_FN(g_rdpdr_device[pfinfo->device_id].local_path, &stat_fs) == 0) |
801 |
if (stat_fs.f_bfree * stat_fs.f_bsize < length) |
802 |
return STATUS_DISK_FULL; |
803 |
|
804 |
if (ftruncate_growable(handle, length) != 0) |
805 |
{ |
806 |
return STATUS_DISK_FULL; |
807 |
} |
808 |
|
809 |
break; |
810 |
default: |
811 |
|
812 |
unimpl("IRP Set File Information class: 0x%x\n", info_class); |
813 |
return STATUS_INVALID_PARAMETER; |
814 |
} |
815 |
return STATUS_SUCCESS; |
816 |
} |
817 |
|
818 |
NTSTATUS |
819 |
disk_check_notify(NTHANDLE handle) |
820 |
{ |
821 |
struct fileinfo *pfinfo; |
822 |
NTSTATUS status = STATUS_PENDING; |
823 |
|
824 |
NOTIFY notify; |
825 |
|
826 |
pfinfo = &(g_fileinfo[handle]); |
827 |
if (!pfinfo->pdir) |
828 |
return STATUS_INVALID_DEVICE_REQUEST; |
829 |
|
830 |
|
831 |
|
832 |
status = NotifyInfo(handle, pfinfo->info_class, ¬ify); |
833 |
|
834 |
if (status != STATUS_PENDING) |
835 |
return status; |
836 |
|
837 |
if (memcmp(&pfinfo->notify, ¬ify, sizeof(NOTIFY))) |
838 |
{ |
839 |
//printf("disk_check_notify found changed event\n"); |
840 |
memcpy(&pfinfo->notify, ¬ify, sizeof(NOTIFY)); |
841 |
status = STATUS_NOTIFY_ENUM_DIR; |
842 |
} |
843 |
|
844 |
return status; |
845 |
|
846 |
|
847 |
} |
848 |
|
849 |
NTSTATUS |
850 |
disk_create_notify(NTHANDLE handle, uint32 info_class) |
851 |
{ |
852 |
|
853 |
struct fileinfo *pfinfo; |
854 |
NTSTATUS ret = STATUS_PENDING; |
855 |
|
856 |
/* printf("start disk_create_notify info_class %X\n", info_class); */ |
857 |
|
858 |
pfinfo = &(g_fileinfo[handle]); |
859 |
pfinfo->info_class = info_class; |
860 |
|
861 |
ret = NotifyInfo(handle, info_class, &pfinfo->notify); |
862 |
|
863 |
if (info_class & 0x1000) |
864 |
{ /* ???? */ |
865 |
if (ret == STATUS_PENDING) |
866 |
return STATUS_SUCCESS; |
867 |
} |
868 |
|
869 |
/* printf("disk_create_notify: num_entries %d\n", pfinfo->notify.num_entries); */ |
870 |
|
871 |
|
872 |
return ret; |
873 |
|
874 |
} |
875 |
|
876 |
static NTSTATUS |
877 |
NotifyInfo(NTHANDLE handle, uint32 info_class, NOTIFY * p) |
878 |
{ |
879 |
struct fileinfo *pfinfo; |
880 |
struct stat buf; |
881 |
struct dirent *dp; |
882 |
char *fullname; |
883 |
DIR *dpr; |
884 |
|
885 |
pfinfo = &(g_fileinfo[handle]); |
886 |
if (fstat(handle, &buf) < 0) |
887 |
{ |
888 |
perror("NotifyInfo"); |
889 |
return STATUS_ACCESS_DENIED; |
890 |
} |
891 |
p->modify_time = buf.st_mtime; |
892 |
p->status_time = buf.st_ctime; |
893 |
p->num_entries = 0; |
894 |
p->total_time = 0; |
895 |
|
896 |
|
897 |
dpr = opendir(pfinfo->path); |
898 |
if (!dpr) |
899 |
{ |
900 |
perror("NotifyInfo"); |
901 |
return STATUS_ACCESS_DENIED; |
902 |
} |
903 |
|
904 |
|
905 |
while ((dp = readdir(dpr))) |
906 |
{ |
907 |
if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) |
908 |
continue; |
909 |
p->num_entries++; |
910 |
fullname = xmalloc(strlen(pfinfo->path) + strlen(dp->d_name) + 2); |
911 |
sprintf(fullname, "%s/%s", pfinfo->path, dp->d_name); |
912 |
|
913 |
if (!stat(fullname, &buf)) |
914 |
{ |
915 |
p->total_time += (buf.st_mtime + buf.st_ctime); |
916 |
} |
917 |
|
918 |
xfree(fullname); |
919 |
} |
920 |
closedir(dpr); |
921 |
|
922 |
return STATUS_PENDING; |
923 |
} |
924 |
|
925 |
static FsInfoType * |
926 |
FsVolumeInfo(char *fpath) |
927 |
{ |
928 |
|
929 |
FILE *fdfs; |
930 |
static FsInfoType info; |
931 |
#ifdef HAVE_MNTENT_H |
932 |
struct mntent *e; |
933 |
#endif |
934 |
|
935 |
/* initialize */ |
936 |
memset(&info, 0, sizeof(info)); |
937 |
strcpy(info.label, "RDESKTOP"); |
938 |
strcpy(info.type, "RDPFS"); |
939 |
|
940 |
#ifdef HAVE_MNTENT_H |
941 |
fdfs = setmntent(MNTENT_PATH, "r"); |
942 |
if (!fdfs) |
943 |
return &info; |
944 |
|
945 |
while ((e = getmntent(fdfs))) |
946 |
{ |
947 |
if (strncmp(fpath, e->mnt_dir, strlen(fpath)) == 0) |
948 |
{ |
949 |
strcpy(info.type, e->mnt_type); |
950 |
strcpy(info.name, e->mnt_fsname); |
951 |
if (strstr(e->mnt_opts, "vfat") || strstr(e->mnt_opts, "iso9660")) |
952 |
{ |
953 |
int fd = open(e->mnt_fsname, O_RDONLY); |
954 |
if (fd >= 0) |
955 |
{ |
956 |
unsigned char buf[512]; |
957 |
memset(buf, 0, sizeof(buf)); |
958 |
if (strstr(e->mnt_opts, "vfat")) |
959 |
/*FAT*/ |
960 |
{ |
961 |
strcpy(info.type, "vfat"); |
962 |
read(fd, buf, sizeof(buf)); |
963 |
info.serial = |
964 |
(buf[42] << 24) + (buf[41] << 16) + |
965 |
(buf[40] << 8) + buf[39]; |
966 |
strncpy(info.label, buf + 43, 10); |
967 |
info.label[10] = '\0'; |
968 |
} |
969 |
else if (lseek(fd, 32767, SEEK_SET) >= 0) /* ISO9660 */ |
970 |
{ |
971 |
read(fd, buf, sizeof(buf)); |
972 |
strncpy(info.label, buf + 41, 32); |
973 |
info.label[32] = '\0'; |
974 |
//info.Serial = (buf[128]<<24)+(buf[127]<<16)+(buf[126]<<8)+buf[125]; |
975 |
} |
976 |
close(fd); |
977 |
} |
978 |
} |
979 |
} |
980 |
} |
981 |
endmntent(fdfs); |
982 |
#else |
983 |
/* initialize */ |
984 |
memset(&info, 0, sizeof(info)); |
985 |
strcpy(info.label, "RDESKTOP"); |
986 |
strcpy(info.type, "RDPFS"); |
987 |
|
988 |
#endif |
989 |
return &info; |
990 |
} |
991 |
|
992 |
|
993 |
NTSTATUS |
994 |
disk_query_volume_information(NTHANDLE handle, uint32 info_class, STREAM out) |
995 |
{ |
996 |
struct STATFS_T stat_fs; |
997 |
struct fileinfo *pfinfo; |
998 |
FsInfoType *fsinfo; |
999 |
|
1000 |
pfinfo = &(g_fileinfo[handle]); |
1001 |
|
1002 |
if (STATFS_FN(pfinfo->path, &stat_fs) != 0) |
1003 |
{ |
1004 |
perror("statfs"); |
1005 |
return STATUS_ACCESS_DENIED; |
1006 |
} |
1007 |
|
1008 |
fsinfo = FsVolumeInfo(pfinfo->path); |
1009 |
|
1010 |
switch (info_class) |
1011 |
{ |
1012 |
case FileFsVolumeInformation: |
1013 |
|
1014 |
out_uint32_le(out, 0); /* volume creation time low */ |
1015 |
out_uint32_le(out, 0); /* volume creation time high */ |
1016 |
out_uint32_le(out, fsinfo->serial); /* serial */ |
1017 |
|
1018 |
out_uint32_le(out, 2 * strlen(fsinfo->label)); /* length of string */ |
1019 |
|
1020 |
out_uint8(out, 0); /* support objects? */ |
1021 |
rdp_out_unistr(out, fsinfo->label, 2 * strlen(fsinfo->label) - 2); |
1022 |
break; |
1023 |
|
1024 |
case FileFsSizeInformation: |
1025 |
|
1026 |
out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */ |
1027 |
out_uint32_le(out, 0); /* Total allocation high units */ |
1028 |
out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */ |
1029 |
out_uint32_le(out, 0); /* Available allowcation units */ |
1030 |
out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */ |
1031 |
out_uint32_le(out, 0x200); /* Bytes per sector */ |
1032 |
break; |
1033 |
|
1034 |
case FileFsAttributeInformation: |
1035 |
|
1036 |
out_uint32_le(out, FS_CASE_SENSITIVE | FS_CASE_IS_PRESERVED); /* fs attributes */ |
1037 |
out_uint32_le(out, F_NAMELEN(stat_fs)); /* max length of filename */ |
1038 |
|
1039 |
out_uint32_le(out, 2 * strlen(fsinfo->type)); /* length of fs_type */ |
1040 |
rdp_out_unistr(out, fsinfo->type, 2 * strlen(fsinfo->type) - 2); |
1041 |
break; |
1042 |
|
1043 |
case FileFsLabelInformation: |
1044 |
case FileFsDeviceInformation: |
1045 |
case FileFsControlInformation: |
1046 |
case FileFsFullSizeInformation: |
1047 |
case FileFsObjectIdInformation: |
1048 |
case FileFsMaximumInformation: |
1049 |
|
1050 |
default: |
1051 |
|
1052 |
unimpl("IRP Query Volume Information class: 0x%x\n", info_class); |
1053 |
return STATUS_INVALID_PARAMETER; |
1054 |
} |
1055 |
return STATUS_SUCCESS; |
1056 |
} |
1057 |
|
1058 |
NTSTATUS |
1059 |
disk_query_directory(NTHANDLE handle, uint32 info_class, char *pattern, STREAM out) |
1060 |
{ |
1061 |
uint32 file_attributes, ft_low, ft_high; |
1062 |
char *dirname, fullpath[256]; |
1063 |
DIR *pdir; |
1064 |
struct dirent *pdirent; |
1065 |
struct stat fstat; |
1066 |
struct fileinfo *pfinfo; |
1067 |
|
1068 |
pfinfo = &(g_fileinfo[handle]); |
1069 |
pdir = pfinfo->pdir; |
1070 |
dirname = pfinfo->path; |
1071 |
file_attributes = 0; |
1072 |
|
1073 |
switch (info_class) |
1074 |
{ |
1075 |
case FileBothDirectoryInformation: |
1076 |
|
1077 |
// If a search pattern is received, remember this pattern, and restart search |
1078 |
if (pattern[0] != 0) |
1079 |
{ |
1080 |
strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64); |
1081 |
rewinddir(pdir); |
1082 |
} |
1083 |
|
1084 |
// find next dirent matching pattern |
1085 |
pdirent = readdir(pdir); |
1086 |
while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0) |
1087 |
pdirent = readdir(pdir); |
1088 |
|
1089 |
if (pdirent == NULL) |
1090 |
return STATUS_NO_MORE_FILES; |
1091 |
|
1092 |
// Get information for directory entry |
1093 |
sprintf(fullpath, "%s/%s", dirname, pdirent->d_name); |
1094 |
|
1095 |
if (stat(fullpath, &fstat)) |
1096 |
{ |
1097 |
switch (errno) |
1098 |
{ |
1099 |
case ENOENT: |
1100 |
case ELOOP: |
1101 |
case EACCES: |
1102 |
/* These are non-fatal errors. */ |
1103 |
memset(&fstat, 0, sizeof(fstat)); |
1104 |
break; |
1105 |
default: |
1106 |
/* Fatal error. By returning STATUS_NO_SUCH_FILE, |
1107 |
the directory list operation will be aborted */ |
1108 |
perror(fullpath); |
1109 |
out_uint8(out, 0); |
1110 |
return STATUS_NO_SUCH_FILE; |
1111 |
} |
1112 |
} |
1113 |
|
1114 |
if (S_ISDIR(fstat.st_mode)) |
1115 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
1116 |
if (pdirent->d_name[0] == '.') |
1117 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
1118 |
if (!file_attributes) |
1119 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
1120 |
if (!(fstat.st_mode & S_IWUSR)) |
1121 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
1122 |
|
1123 |
// Return requested information |
1124 |
out_uint8s(out, 8); //unknown zero |
1125 |
|
1126 |
seconds_since_1970_to_filetime(get_create_time(&fstat), &ft_high, &ft_low); |
1127 |
out_uint32_le(out, ft_low); // create time |
1128 |
out_uint32_le(out, ft_high); |
1129 |
|
1130 |
seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low); |
1131 |
out_uint32_le(out, ft_low); //last_access_time |
1132 |
out_uint32_le(out, ft_high); |
1133 |
|
1134 |
seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low); |
1135 |
out_uint32_le(out, ft_low); //last_write_time |
1136 |
out_uint32_le(out, ft_high); |
1137 |
|
1138 |
seconds_since_1970_to_filetime(fstat.st_ctime, &ft_high, &ft_low); |
1139 |
out_uint32_le(out, ft_low); //change_write_time |
1140 |
out_uint32_le(out, ft_high); |
1141 |
|
1142 |
out_uint32_le(out, fstat.st_size); //filesize low |
1143 |
out_uint32_le(out, 0); //filesize high |
1144 |
out_uint32_le(out, fstat.st_size); //filesize low |
1145 |
out_uint32_le(out, 0); //filesize high |
1146 |
out_uint32_le(out, file_attributes); |
1147 |
out_uint8(out, 2 * strlen(pdirent->d_name) + 2); //unicode length |
1148 |
out_uint8s(out, 7); //pad? |
1149 |
out_uint8(out, 0); //8.3 file length |
1150 |
out_uint8s(out, 2 * 12); //8.3 unicode length |
1151 |
rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name)); |
1152 |
break; |
1153 |
|
1154 |
default: |
1155 |
/* FIXME: Support FileDirectoryInformation, |
1156 |
FileFullDirectoryInformation, and |
1157 |
FileNamesInformation */ |
1158 |
|
1159 |
unimpl("IRP Query Directory sub: 0x%x\n", info_class); |
1160 |
return STATUS_INVALID_PARAMETER; |
1161 |
} |
1162 |
|
1163 |
return STATUS_SUCCESS; |
1164 |
} |
1165 |
|
1166 |
|
1167 |
|
1168 |
static NTSTATUS |
1169 |
disk_device_control(NTHANDLE handle, uint32 request, STREAM in, STREAM out) |
1170 |
{ |
1171 |
if (((request >> 16) != 20) || ((request >> 16) != 9)) |
1172 |
return STATUS_INVALID_PARAMETER; |
1173 |
|
1174 |
/* extract operation */ |
1175 |
request >>= 2; |
1176 |
request &= 0xfff; |
1177 |
|
1178 |
printf("DISK IOCTL %d\n", request); |
1179 |
|
1180 |
switch (request) |
1181 |
{ |
1182 |
case 25: // ? |
1183 |
case 42: // ? |
1184 |
default: |
1185 |
unimpl("DISK IOCTL %d\n", request); |
1186 |
return STATUS_INVALID_PARAMETER; |
1187 |
} |
1188 |
|
1189 |
return STATUS_SUCCESS; |
1190 |
} |
1191 |
|
1192 |
DEVICE_FNS disk_fns = { |
1193 |
disk_create, |
1194 |
disk_close, |
1195 |
disk_read, |
1196 |
disk_write, |
1197 |
disk_device_control /* device_control */ |
1198 |
}; |