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 |
|
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#include "rdesktop.h" |
22 |
#include "disk.h" |
23 |
|
24 |
#include <sys/types.h> |
25 |
#include <sys/stat.h> |
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#include <unistd.h> |
27 |
#include <fcntl.h> /* open, close */ |
28 |
#include <dirent.h> /* opendir, closedir, readdir */ |
29 |
#include <fnmatch.h> |
30 |
#include <errno.h> /* errno */ |
31 |
|
32 |
#include <utime.h> |
33 |
#include <time.h> /* ctime */ |
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|
35 |
#if (defined(HAVE_DIRFD) || (HAVE_DECL_DIRFD == 1)) |
36 |
#define DIRFD(a) (dirfd(a)) |
37 |
#else |
38 |
#define DIRFD(a) ((a)->DIR_FD_MEMBER_NAME) |
39 |
#endif |
40 |
|
41 |
/* TODO: let autoconf figure out everything below... */ |
42 |
#if (defined(sun) && (defined(__svr4__) || defined(__SVR4))) |
43 |
#define SOLARIS |
44 |
#endif |
45 |
|
46 |
#if (defined(SOLARIS) || defined (__hpux) || defined(__BEOS__)) |
47 |
#include <sys/statvfs.h> /* solaris statvfs */ |
48 |
/* TODO: Fix mntent-handling for solaris/hpux |
49 |
* #include <sys/mntent.h> */ |
50 |
#undef HAVE_MNTENT_H |
51 |
#define MNTENT_PATH "/etc/mnttab" |
52 |
#define STATFS_FN(path, buf) (statvfs(path,buf)) |
53 |
#define STATFS_T statvfs |
54 |
#define F_NAMELEN(buf) ((buf).f_namemax) |
55 |
|
56 |
#elif (defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__APPLE__)) |
57 |
#include <sys/param.h> |
58 |
#include <sys/mount.h> |
59 |
#define STATFS_FN(path, buf) (statfs(path,buf)) |
60 |
#define STATFS_T statfs |
61 |
#define F_NAMELEN(buf) (NAME_MAX) |
62 |
|
63 |
#elif (defined(__SGI_IRIX__)) |
64 |
#include <sys/types.h> |
65 |
#include <sys/statvfs.h> |
66 |
#define STATFS_FN(path, buf) (statvfs(path,buf)) |
67 |
#define STATFS_T statvfs |
68 |
#define F_NAMELEN(buf) ((buf).f_namemax) |
69 |
|
70 |
#elif (defined(__alpha) && !defined(linux)) |
71 |
#include <sys/mount.h> /* osf1 statfs */ |
72 |
#define STATFS_FN(path, buf) (statfs(path,buf,sizeof(buf))) |
73 |
#define STATFS_T statfs |
74 |
#define F_NAMELEN(buf) (255) |
75 |
|
76 |
#else |
77 |
#include <sys/vfs.h> /* linux statfs */ |
78 |
#include <mntent.h> |
79 |
#define HAVE_MNTENT_H |
80 |
#define MNTENT_PATH "/etc/mtab" |
81 |
#define STATFS_FN(path, buf) (statfs(path,buf)) |
82 |
#define STATFS_T statfs |
83 |
#define F_NAMELEN(buf) ((buf).f_namelen) |
84 |
#endif |
85 |
|
86 |
extern RDPDR_DEVICE g_rdpdr_device[]; |
87 |
|
88 |
FILEINFO g_fileinfo[MAX_OPEN_FILES]; |
89 |
BOOL g_notify_stamp = False; |
90 |
|
91 |
typedef struct |
92 |
{ |
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char name[256]; |
94 |
char label[256]; |
95 |
unsigned long serial; |
96 |
char type[256]; |
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} FsInfoType; |
98 |
|
99 |
static NTSTATUS NotifyInfo(NTHANDLE handle, uint32 info_class, NOTIFY * p); |
100 |
|
101 |
static time_t |
102 |
get_create_time(struct stat *st) |
103 |
{ |
104 |
time_t ret, ret1; |
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|
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ret = MIN(st->st_ctime, st->st_mtime); |
107 |
ret1 = MIN(ret, st->st_atime); |
108 |
|
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if (ret1 != (time_t) 0) |
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return ret1; |
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|
112 |
return ret; |
113 |
} |
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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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{ |
119 |
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); |
124 |
} |
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|
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/* Convert seconds since 1970 back to filetime */ |
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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; |
136 |
|
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val = (time_t) ticks; |
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return (val); |
139 |
|
140 |
} |
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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, |
144 |
for example. */ |
145 |
static int |
146 |
ftruncate_growable(int fd, off_t length) |
147 |
{ |
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int ret; |
149 |
off_t pos; |
150 |
static const char zero; |
151 |
|
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/* Try the simple method first */ |
153 |
if ((ret = ftruncate(fd, length)) != -1) |
154 |
{ |
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return ret; |
156 |
} |
157 |
|
158 |
/* |
159 |
* Some kind of error. Perhaps we were trying to grow. Retry |
160 |
* in a safe way. |
161 |
*/ |
162 |
|
163 |
/* Get current position */ |
164 |
if ((pos = lseek(fd, 0, SEEK_CUR)) == -1) |
165 |
{ |
166 |
perror("lseek"); |
167 |
return -1; |
168 |
} |
169 |
|
170 |
/* Seek to new size */ |
171 |
if (lseek(fd, length, SEEK_SET) == -1) |
172 |
{ |
173 |
perror("lseek"); |
174 |
return -1; |
175 |
} |
176 |
|
177 |
/* Write a zero */ |
178 |
if (write(fd, &zero, 1) == -1) |
179 |
{ |
180 |
perror("write"); |
181 |
return -1; |
182 |
} |
183 |
|
184 |
/* Truncate. This shouldn't fail. */ |
185 |
if (ftruncate(fd, length) == -1) |
186 |
{ |
187 |
perror("ftruncate"); |
188 |
return -1; |
189 |
} |
190 |
|
191 |
/* Restore position */ |
192 |
if (lseek(fd, pos, SEEK_SET) == -1) |
193 |
{ |
194 |
perror("lseek"); |
195 |
return -1; |
196 |
} |
197 |
|
198 |
return 0; |
199 |
} |
200 |
|
201 |
/* Just like open(2), but if a open with O_EXCL fails, retry with |
202 |
GUARDED semantics. This might be necessary because some filesystems |
203 |
(such as NFS filesystems mounted from a unfsd server) doesn't |
204 |
support O_EXCL. GUARDED semantics are subject to race conditions, |
205 |
but we can live with that. |
206 |
*/ |
207 |
static int |
208 |
open_weak_exclusive(const char *pathname, int flags, mode_t mode) |
209 |
{ |
210 |
int ret; |
211 |
struct stat statbuf; |
212 |
|
213 |
ret = open(pathname, flags, mode); |
214 |
if (ret != -1 || !(flags & O_EXCL)) |
215 |
{ |
216 |
/* Success, or not using O_EXCL */ |
217 |
return ret; |
218 |
} |
219 |
|
220 |
/* An error occured, and we are using O_EXCL. In case the FS |
221 |
doesn't support O_EXCL, some kind of error will be |
222 |
returned. Unfortunately, we don't know which one. Linux |
223 |
2.6.8 seems to return 524, but I cannot find a documented |
224 |
#define for this case. So, we'll return only on errors that |
225 |
we know aren't related to O_EXCL. */ |
226 |
switch (errno) |
227 |
{ |
228 |
case EACCES: |
229 |
case EEXIST: |
230 |
case EINTR: |
231 |
case EISDIR: |
232 |
case ELOOP: |
233 |
case ENAMETOOLONG: |
234 |
case ENOENT: |
235 |
case ENOTDIR: |
236 |
return ret; |
237 |
} |
238 |
|
239 |
/* Retry with GUARDED semantics */ |
240 |
if (stat(pathname, &statbuf) != -1) |
241 |
{ |
242 |
/* File exists */ |
243 |
errno = EEXIST; |
244 |
return -1; |
245 |
} |
246 |
else |
247 |
{ |
248 |
return open(pathname, flags & ~O_EXCL, mode); |
249 |
} |
250 |
} |
251 |
|
252 |
/* Enumeration of devices from rdesktop.c */ |
253 |
/* returns numer of units found and initialized. */ |
254 |
/* optarg looks like ':h=/mnt/floppy,b=/mnt/usbdevice1' */ |
255 |
/* when it arrives to this function. */ |
256 |
int |
257 |
disk_enum_devices(uint32 * id, char *optarg) |
258 |
{ |
259 |
char *pos = optarg; |
260 |
char *pos2; |
261 |
int count = 0; |
262 |
|
263 |
// skip the first colon |
264 |
optarg++; |
265 |
while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
266 |
{ |
267 |
pos2 = next_arg(optarg, '='); |
268 |
|
269 |
strncpy(g_rdpdr_device[*id].name, optarg, sizeof(g_rdpdr_device[*id].name) - 1); |
270 |
if (strlen(optarg) > (sizeof(g_rdpdr_device[*id].name) - 1)) |
271 |
fprintf(stderr, "share name %s truncated to %s\n", optarg, |
272 |
g_rdpdr_device[*id].name); |
273 |
|
274 |
g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
275 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
276 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK; |
277 |
count++; |
278 |
(*id)++; |
279 |
|
280 |
optarg = pos; |
281 |
} |
282 |
return count; |
283 |
} |
284 |
|
285 |
/* Opens or creates a file or directory */ |
286 |
static NTSTATUS |
287 |
disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition, |
288 |
uint32 flags_and_attributes, char *filename, NTHANDLE * phandle) |
289 |
{ |
290 |
NTHANDLE handle; |
291 |
DIR *dirp; |
292 |
int flags, mode; |
293 |
char path[256]; |
294 |
struct stat filestat; |
295 |
|
296 |
handle = 0; |
297 |
dirp = NULL; |
298 |
flags = 0; |
299 |
mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; |
300 |
|
301 |
if (*filename && filename[strlen(filename) - 1] == '/') |
302 |
filename[strlen(filename) - 1] = 0; |
303 |
sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename); |
304 |
|
305 |
switch (create_disposition) |
306 |
{ |
307 |
case CREATE_ALWAYS: |
308 |
|
309 |
// Delete existing file/link. |
310 |
unlink(path); |
311 |
flags |= O_CREAT; |
312 |
break; |
313 |
|
314 |
case CREATE_NEW: |
315 |
|
316 |
// If the file already exists, then fail. |
317 |
flags |= O_CREAT | O_EXCL; |
318 |
break; |
319 |
|
320 |
case OPEN_ALWAYS: |
321 |
|
322 |
// Create if not already exists. |
323 |
flags |= O_CREAT; |
324 |
break; |
325 |
|
326 |
case OPEN_EXISTING: |
327 |
|
328 |
// Default behaviour |
329 |
break; |
330 |
|
331 |
case TRUNCATE_EXISTING: |
332 |
|
333 |
// If the file does not exist, then fail. |
334 |
flags |= O_TRUNC; |
335 |
break; |
336 |
} |
337 |
|
338 |
//printf("Open: \"%s\" flags: %X, accessmask: %X sharemode: %X create disp: %X\n", path, flags_and_attributes, accessmask, sharemode, create_disposition); |
339 |
|
340 |
// Get information about file and set that flag ourselfs |
341 |
if ((stat(path, &filestat) == 0) && (S_ISDIR(filestat.st_mode))) |
342 |
{ |
343 |
if (flags_and_attributes & FILE_NON_DIRECTORY_FILE) |
344 |
return STATUS_FILE_IS_A_DIRECTORY; |
345 |
else |
346 |
flags_and_attributes |= FILE_DIRECTORY_FILE; |
347 |
} |
348 |
|
349 |
if (flags_and_attributes & FILE_DIRECTORY_FILE) |
350 |
{ |
351 |
if (flags & O_CREAT) |
352 |
{ |
353 |
mkdir(path, mode); |
354 |
} |
355 |
|
356 |
dirp = opendir(path); |
357 |
if (!dirp) |
358 |
{ |
359 |
switch (errno) |
360 |
{ |
361 |
case EACCES: |
362 |
|
363 |
return STATUS_ACCESS_DENIED; |
364 |
|
365 |
case ENOENT: |
366 |
|
367 |
return STATUS_NO_SUCH_FILE; |
368 |
|
369 |
default: |
370 |
|
371 |
perror("opendir"); |
372 |
return STATUS_NO_SUCH_FILE; |
373 |
} |
374 |
} |
375 |
handle = DIRFD(dirp); |
376 |
} |
377 |
else |
378 |
{ |
379 |
|
380 |
if (accessmask & GENERIC_ALL |
381 |
|| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE)) |
382 |
{ |
383 |
flags |= O_RDWR; |
384 |
} |
385 |
else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ)) |
386 |
{ |
387 |
flags |= O_WRONLY; |
388 |
} |
389 |
else |
390 |
{ |
391 |
flags |= O_RDONLY; |
392 |
} |
393 |
|
394 |
handle = open_weak_exclusive(path, flags, mode); |
395 |
if (handle == -1) |
396 |
{ |
397 |
switch (errno) |
398 |
{ |
399 |
case EISDIR: |
400 |
|
401 |
return STATUS_FILE_IS_A_DIRECTORY; |
402 |
|
403 |
case EACCES: |
404 |
|
405 |
return STATUS_ACCESS_DENIED; |
406 |
|
407 |
case ENOENT: |
408 |
|
409 |
return STATUS_NO_SUCH_FILE; |
410 |
case EEXIST: |
411 |
|
412 |
return STATUS_OBJECT_NAME_COLLISION; |
413 |
default: |
414 |
|
415 |
perror("open"); |
416 |
return STATUS_NO_SUCH_FILE; |
417 |
} |
418 |
} |
419 |
|
420 |
/* all read and writes of files should be non blocking */ |
421 |
if (fcntl(handle, F_SETFL, O_NONBLOCK) == -1) |
422 |
perror("fcntl"); |
423 |
} |
424 |
|
425 |
if (handle >= MAX_OPEN_FILES) |
426 |
{ |
427 |
error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n", |
428 |
handle); |
429 |
exit(1); |
430 |
} |
431 |
|
432 |
if (dirp) |
433 |
g_fileinfo[handle].pdir = dirp; |
434 |
else |
435 |
g_fileinfo[handle].pdir = NULL; |
436 |
|
437 |
g_fileinfo[handle].device_id = device_id; |
438 |
g_fileinfo[handle].flags_and_attributes = flags_and_attributes; |
439 |
g_fileinfo[handle].accessmask = accessmask; |
440 |
strncpy(g_fileinfo[handle].path, path, 255); |
441 |
g_fileinfo[handle].delete_on_close = False; |
442 |
g_notify_stamp = True; |
443 |
|
444 |
*phandle = handle; |
445 |
return STATUS_SUCCESS; |
446 |
} |
447 |
|
448 |
static NTSTATUS |
449 |
disk_close(NTHANDLE handle) |
450 |
{ |
451 |
struct fileinfo *pfinfo; |
452 |
|
453 |
pfinfo = &(g_fileinfo[handle]); |
454 |
|
455 |
g_notify_stamp = True; |
456 |
|
457 |
rdpdr_abort_io(handle, 0, STATUS_CANCELLED); |
458 |
|
459 |
if (pfinfo->pdir) |
460 |
{ |
461 |
if (closedir(pfinfo->pdir) < 0) |
462 |
{ |
463 |
perror("closedir"); |
464 |
return STATUS_INVALID_HANDLE; |
465 |
} |
466 |
|
467 |
if (pfinfo->delete_on_close) |
468 |
if (rmdir(pfinfo->path) < 0) |
469 |
{ |
470 |
perror(pfinfo->path); |
471 |
return STATUS_ACCESS_DENIED; |
472 |
} |
473 |
pfinfo->delete_on_close = False; |
474 |
} |
475 |
else |
476 |
{ |
477 |
if (close(handle) < 0) |
478 |
{ |
479 |
perror("close"); |
480 |
return STATUS_INVALID_HANDLE; |
481 |
} |
482 |
if (pfinfo->delete_on_close) |
483 |
if (unlink(pfinfo->path) < 0) |
484 |
{ |
485 |
perror(pfinfo->path); |
486 |
return STATUS_ACCESS_DENIED; |
487 |
} |
488 |
|
489 |
pfinfo->delete_on_close = False; |
490 |
} |
491 |
|
492 |
return STATUS_SUCCESS; |
493 |
} |
494 |
|
495 |
static NTSTATUS |
496 |
disk_read(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
497 |
{ |
498 |
int n; |
499 |
|
500 |
#if 0 |
501 |
/* browsing dir ???? */ |
502 |
/* each request is 24 bytes */ |
503 |
if (g_fileinfo[handle].flags_and_attributes & FILE_DIRECTORY_FILE) |
504 |
{ |
505 |
*result = 0; |
506 |
return STATUS_SUCCESS; |
507 |
} |
508 |
#endif |
509 |
|
510 |
lseek(handle, offset, SEEK_SET); |
511 |
|
512 |
n = read(handle, data, length); |
513 |
|
514 |
if (n < 0) |
515 |
{ |
516 |
*result = 0; |
517 |
switch (errno) |
518 |
{ |
519 |
case EISDIR: |
520 |
/* Implement 24 Byte directory read ?? |
521 |
with STATUS_NOT_IMPLEMENTED server doesn't read again */ |
522 |
/* return STATUS_FILE_IS_A_DIRECTORY; */ |
523 |
return STATUS_NOT_IMPLEMENTED; |
524 |
default: |
525 |
perror("read"); |
526 |
return STATUS_INVALID_PARAMETER; |
527 |
} |
528 |
} |
529 |
|
530 |
*result = n; |
531 |
|
532 |
return STATUS_SUCCESS; |
533 |
} |
534 |
|
535 |
static NTSTATUS |
536 |
disk_write(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
537 |
{ |
538 |
int n; |
539 |
|
540 |
lseek(handle, offset, SEEK_SET); |
541 |
|
542 |
n = write(handle, data, length); |
543 |
|
544 |
if (n < 0) |
545 |
{ |
546 |
perror("write"); |
547 |
*result = 0; |
548 |
switch (errno) |
549 |
{ |
550 |
case ENOSPC: |
551 |
return STATUS_DISK_FULL; |
552 |
default: |
553 |
return STATUS_ACCESS_DENIED; |
554 |
} |
555 |
} |
556 |
|
557 |
*result = n; |
558 |
|
559 |
return STATUS_SUCCESS; |
560 |
} |
561 |
|
562 |
NTSTATUS |
563 |
disk_query_information(NTHANDLE handle, uint32 info_class, STREAM out) |
564 |
{ |
565 |
uint32 file_attributes, ft_high, ft_low; |
566 |
struct stat filestat; |
567 |
char *path, *filename; |
568 |
|
569 |
path = g_fileinfo[handle].path; |
570 |
|
571 |
// Get information about file |
572 |
if (fstat(handle, &filestat) != 0) |
573 |
{ |
574 |
perror("stat"); |
575 |
out_uint8(out, 0); |
576 |
return STATUS_ACCESS_DENIED; |
577 |
} |
578 |
|
579 |
// Set file attributes |
580 |
file_attributes = 0; |
581 |
if (S_ISDIR(filestat.st_mode)) |
582 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
583 |
|
584 |
filename = 1 + strrchr(path, '/'); |
585 |
if (filename && filename[0] == '.') |
586 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
587 |
|
588 |
if (!file_attributes) |
589 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
590 |
|
591 |
if (!(filestat.st_mode & S_IWUSR)) |
592 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
593 |
|
594 |
// Return requested data |
595 |
switch (info_class) |
596 |
{ |
597 |
case FileBasicInformation: |
598 |
seconds_since_1970_to_filetime(get_create_time(&filestat), &ft_high, |
599 |
&ft_low); |
600 |
out_uint32_le(out, ft_low); //create_access_time |
601 |
out_uint32_le(out, ft_high); |
602 |
|
603 |
seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low); |
604 |
out_uint32_le(out, ft_low); //last_access_time |
605 |
out_uint32_le(out, ft_high); |
606 |
|
607 |
seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low); |
608 |
out_uint32_le(out, ft_low); //last_write_time |
609 |
out_uint32_le(out, ft_high); |
610 |
|
611 |
seconds_since_1970_to_filetime(filestat.st_ctime, &ft_high, &ft_low); |
612 |
out_uint32_le(out, ft_low); //last_change_time |
613 |
out_uint32_le(out, ft_high); |
614 |
|
615 |
out_uint32_le(out, file_attributes); |
616 |
break; |
617 |
|
618 |
case FileStandardInformation: |
619 |
|
620 |
out_uint32_le(out, filestat.st_size); //Allocation size |
621 |
out_uint32_le(out, 0); |
622 |
out_uint32_le(out, filestat.st_size); //End of file |
623 |
out_uint32_le(out, 0); |
624 |
out_uint32_le(out, filestat.st_nlink); //Number of links |
625 |
out_uint8(out, 0); //Delete pending |
626 |
out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); //Directory |
627 |
break; |
628 |
|
629 |
case FileObjectIdInformation: |
630 |
|
631 |
out_uint32_le(out, file_attributes); /* File Attributes */ |
632 |
out_uint32_le(out, 0); /* Reparse Tag */ |
633 |
break; |
634 |
|
635 |
default: |
636 |
|
637 |
unimpl("IRP Query (File) Information class: 0x%x\n", info_class); |
638 |
return STATUS_INVALID_PARAMETER; |
639 |
} |
640 |
return STATUS_SUCCESS; |
641 |
} |
642 |
|
643 |
NTSTATUS |
644 |
disk_set_information(NTHANDLE handle, uint32 info_class, STREAM in, STREAM out) |
645 |
{ |
646 |
uint32 length, file_attributes, ft_high, ft_low, delete_on_close; |
647 |
char newname[256], fullpath[256]; |
648 |
struct fileinfo *pfinfo; |
649 |
int mode; |
650 |
struct stat filestat; |
651 |
time_t write_time, change_time, access_time, mod_time; |
652 |
struct utimbuf tvs; |
653 |
struct STATFS_T stat_fs; |
654 |
|
655 |
pfinfo = &(g_fileinfo[handle]); |
656 |
g_notify_stamp = True; |
657 |
|
658 |
switch (info_class) |
659 |
{ |
660 |
case FileBasicInformation: |
661 |
write_time = change_time = access_time = 0; |
662 |
|
663 |
in_uint8s(in, 4); /* Handle of root dir? */ |
664 |
in_uint8s(in, 24); /* unknown */ |
665 |
|
666 |
// CreationTime |
667 |
in_uint32_le(in, ft_low); |
668 |
in_uint32_le(in, ft_high); |
669 |
|
670 |
// AccessTime |
671 |
in_uint32_le(in, ft_low); |
672 |
in_uint32_le(in, ft_high); |
673 |
if (ft_low || ft_high) |
674 |
access_time = convert_1970_to_filetime(ft_high, ft_low); |
675 |
|
676 |
// WriteTime |
677 |
in_uint32_le(in, ft_low); |
678 |
in_uint32_le(in, ft_high); |
679 |
if (ft_low || ft_high) |
680 |
write_time = convert_1970_to_filetime(ft_high, ft_low); |
681 |
|
682 |
// ChangeTime |
683 |
in_uint32_le(in, ft_low); |
684 |
in_uint32_le(in, ft_high); |
685 |
if (ft_low || ft_high) |
686 |
change_time = convert_1970_to_filetime(ft_high, ft_low); |
687 |
|
688 |
in_uint32_le(in, file_attributes); |
689 |
|
690 |
if (fstat(handle, &filestat)) |
691 |
return STATUS_ACCESS_DENIED; |
692 |
|
693 |
tvs.modtime = filestat.st_mtime; |
694 |
tvs.actime = filestat.st_atime; |
695 |
if (access_time) |
696 |
tvs.actime = access_time; |
697 |
|
698 |
|
699 |
if (write_time || change_time) |
700 |
mod_time = MIN(write_time, change_time); |
701 |
else |
702 |
mod_time = write_time ? write_time : change_time; |
703 |
|
704 |
if (mod_time) |
705 |
tvs.modtime = mod_time; |
706 |
|
707 |
|
708 |
if (access_time || write_time || change_time) |
709 |
{ |
710 |
#if WITH_DEBUG_RDP5 |
711 |
printf("FileBasicInformation access time %s", |
712 |
ctime(&tvs.actime)); |
713 |
printf("FileBasicInformation modification time %s", |
714 |
ctime(&tvs.modtime)); |
715 |
#endif |
716 |
if (utime(pfinfo->path, &tvs) && errno != EPERM) |
717 |
return STATUS_ACCESS_DENIED; |
718 |
} |
719 |
|
720 |
if (!file_attributes) |
721 |
break; // not valid |
722 |
|
723 |
mode = filestat.st_mode; |
724 |
|
725 |
if (file_attributes & FILE_ATTRIBUTE_READONLY) |
726 |
mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); |
727 |
else |
728 |
mode |= S_IWUSR; |
729 |
|
730 |
mode &= 0777; |
731 |
#if WITH_DEBUG_RDP5 |
732 |
printf("FileBasicInformation set access mode 0%o", mode); |
733 |
#endif |
734 |
|
735 |
if (fchmod(handle, mode)) |
736 |
return STATUS_ACCESS_DENIED; |
737 |
|
738 |
break; |
739 |
|
740 |
case FileRenameInformation: |
741 |
|
742 |
in_uint8s(in, 4); /* Handle of root dir? */ |
743 |
in_uint8s(in, 0x1a); /* unknown */ |
744 |
in_uint32_le(in, length); |
745 |
|
746 |
if (length && (length / 2) < 256) |
747 |
{ |
748 |
rdp_in_unistr(in, newname, length); |
749 |
convert_to_unix_filename(newname); |
750 |
} |
751 |
else |
752 |
{ |
753 |
return STATUS_INVALID_PARAMETER; |
754 |
} |
755 |
|
756 |
sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path, |
757 |
newname); |
758 |
|
759 |
if (rename(pfinfo->path, fullpath) != 0) |
760 |
{ |
761 |
perror("rename"); |
762 |
return STATUS_ACCESS_DENIED; |
763 |
} |
764 |
break; |
765 |
|
766 |
case FileDispositionInformation: |
767 |
/* As far as I understand it, the correct |
768 |
thing to do here is to *schedule* a delete, |
769 |
so it will be deleted when the file is |
770 |
closed. Subsequent |
771 |
FileDispositionInformation requests with |
772 |
DeleteFile set to FALSE should unschedule |
773 |
the delete. See |
774 |
http://www.osronline.com/article.cfm?article=245. */ |
775 |
|
776 |
in_uint32_le(in, delete_on_close); |
777 |
|
778 |
if (delete_on_close || |
779 |
(pfinfo-> |
780 |
accessmask & (FILE_DELETE_ON_CLOSE | FILE_COMPLETE_IF_OPLOCKED))) |
781 |
{ |
782 |
pfinfo->delete_on_close = True; |
783 |
} |
784 |
|
785 |
break; |
786 |
|
787 |
case FileAllocationInformation: |
788 |
/* Fall through to FileEndOfFileInformation, |
789 |
which uses ftrunc. This is like Samba with |
790 |
"strict allocation = false", and means that |
791 |
we won't detect out-of-quota errors, for |
792 |
example. */ |
793 |
|
794 |
case FileEndOfFileInformation: |
795 |
in_uint8s(in, 28); /* unknown */ |
796 |
in_uint32_le(in, length); /* file size */ |
797 |
|
798 |
/* prevents start of writing if not enough space left on device */ |
799 |
if (STATFS_FN(g_rdpdr_device[pfinfo->device_id].local_path, &stat_fs) == 0) |
800 |
if (stat_fs.f_bfree * stat_fs.f_bsize < length) |
801 |
return STATUS_DISK_FULL; |
802 |
|
803 |
if (ftruncate_growable(handle, length) != 0) |
804 |
{ |
805 |
return STATUS_DISK_FULL; |
806 |
} |
807 |
|
808 |
break; |
809 |
default: |
810 |
|
811 |
unimpl("IRP Set File Information class: 0x%x\n", info_class); |
812 |
return STATUS_INVALID_PARAMETER; |
813 |
} |
814 |
return STATUS_SUCCESS; |
815 |
} |
816 |
|
817 |
NTSTATUS |
818 |
disk_check_notify(NTHANDLE handle) |
819 |
{ |
820 |
struct fileinfo *pfinfo; |
821 |
NTSTATUS status = STATUS_PENDING; |
822 |
|
823 |
NOTIFY notify; |
824 |
|
825 |
pfinfo = &(g_fileinfo[handle]); |
826 |
if (!pfinfo->pdir) |
827 |
return STATUS_INVALID_DEVICE_REQUEST; |
828 |
|
829 |
|
830 |
|
831 |
status = NotifyInfo(handle, pfinfo->info_class, ¬ify); |
832 |
|
833 |
if (status != STATUS_PENDING) |
834 |
return status; |
835 |
|
836 |
if (memcmp(&pfinfo->notify, ¬ify, sizeof(NOTIFY))) |
837 |
{ |
838 |
//printf("disk_check_notify found changed event\n"); |
839 |
memcpy(&pfinfo->notify, ¬ify, sizeof(NOTIFY)); |
840 |
status = STATUS_NOTIFY_ENUM_DIR; |
841 |
} |
842 |
|
843 |
return status; |
844 |
|
845 |
|
846 |
} |
847 |
|
848 |
NTSTATUS |
849 |
disk_create_notify(NTHANDLE handle, uint32 info_class) |
850 |
{ |
851 |
|
852 |
struct fileinfo *pfinfo; |
853 |
NTSTATUS ret = STATUS_PENDING; |
854 |
|
855 |
/* printf("start disk_create_notify info_class %X\n", info_class); */ |
856 |
|
857 |
pfinfo = &(g_fileinfo[handle]); |
858 |
pfinfo->info_class = info_class; |
859 |
|
860 |
ret = NotifyInfo(handle, info_class, &pfinfo->notify); |
861 |
|
862 |
if (info_class & 0x1000) |
863 |
{ /* ???? */ |
864 |
if (ret == STATUS_PENDING) |
865 |
return STATUS_SUCCESS; |
866 |
} |
867 |
|
868 |
/* printf("disk_create_notify: num_entries %d\n", pfinfo->notify.num_entries); */ |
869 |
|
870 |
|
871 |
return ret; |
872 |
|
873 |
} |
874 |
|
875 |
static NTSTATUS |
876 |
NotifyInfo(NTHANDLE handle, uint32 info_class, NOTIFY * p) |
877 |
{ |
878 |
struct fileinfo *pfinfo; |
879 |
struct stat buf; |
880 |
struct dirent *dp; |
881 |
char *fullname; |
882 |
DIR *dpr; |
883 |
|
884 |
pfinfo = &(g_fileinfo[handle]); |
885 |
if (fstat(handle, &buf) < 0) |
886 |
{ |
887 |
perror("NotifyInfo"); |
888 |
return STATUS_ACCESS_DENIED; |
889 |
} |
890 |
p->modify_time = buf.st_mtime; |
891 |
p->status_time = buf.st_ctime; |
892 |
p->num_entries = 0; |
893 |
p->total_time = 0; |
894 |
|
895 |
|
896 |
dpr = opendir(pfinfo->path); |
897 |
if (!dpr) |
898 |
{ |
899 |
perror("NotifyInfo"); |
900 |
return STATUS_ACCESS_DENIED; |
901 |
} |
902 |
|
903 |
|
904 |
while ((dp = readdir(dpr))) |
905 |
{ |
906 |
if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) |
907 |
continue; |
908 |
p->num_entries++; |
909 |
fullname = xmalloc(strlen(pfinfo->path) + strlen(dp->d_name) + 2); |
910 |
sprintf(fullname, "%s/%s", pfinfo->path, dp->d_name); |
911 |
|
912 |
if (!stat(fullname, &buf)) |
913 |
{ |
914 |
p->total_time += (buf.st_mtime + buf.st_ctime); |
915 |
} |
916 |
|
917 |
xfree(fullname); |
918 |
} |
919 |
closedir(dpr); |
920 |
|
921 |
return STATUS_PENDING; |
922 |
} |
923 |
|
924 |
static FsInfoType * |
925 |
FsVolumeInfo(char *fpath) |
926 |
{ |
927 |
|
928 |
FILE *fdfs; |
929 |
static FsInfoType info; |
930 |
#ifdef HAVE_MNTENT_H |
931 |
struct mntent *e; |
932 |
#endif |
933 |
|
934 |
/* initialize */ |
935 |
memset(&info, 0, sizeof(info)); |
936 |
strcpy(info.label, "RDESKTOP"); |
937 |
strcpy(info.type, "RDPFS"); |
938 |
|
939 |
#ifdef HAVE_MNTENT_H |
940 |
fdfs = setmntent(MNTENT_PATH, "r"); |
941 |
if (!fdfs) |
942 |
return &info; |
943 |
|
944 |
while ((e = getmntent(fdfs))) |
945 |
{ |
946 |
if (strncmp(fpath, e->mnt_dir, strlen(fpath)) == 0) |
947 |
{ |
948 |
strcpy(info.type, e->mnt_type); |
949 |
strcpy(info.name, e->mnt_fsname); |
950 |
if (strstr(e->mnt_opts, "vfat") || strstr(e->mnt_opts, "iso9660")) |
951 |
{ |
952 |
int fd = open(e->mnt_fsname, O_RDONLY); |
953 |
if (fd >= 0) |
954 |
{ |
955 |
unsigned char buf[512]; |
956 |
memset(buf, 0, sizeof(buf)); |
957 |
if (strstr(e->mnt_opts, "vfat")) |
958 |
/*FAT*/ |
959 |
{ |
960 |
strcpy(info.type, "vfat"); |
961 |
read(fd, buf, sizeof(buf)); |
962 |
info.serial = |
963 |
(buf[42] << 24) + (buf[41] << 16) + |
964 |
(buf[40] << 8) + buf[39]; |
965 |
strncpy(info.label, buf + 43, 10); |
966 |
info.label[10] = '\0'; |
967 |
} |
968 |
else if (lseek(fd, 32767, SEEK_SET) >= 0) /* ISO9660 */ |
969 |
{ |
970 |
read(fd, buf, sizeof(buf)); |
971 |
strncpy(info.label, buf + 41, 32); |
972 |
info.label[32] = '\0'; |
973 |
//info.Serial = (buf[128]<<24)+(buf[127]<<16)+(buf[126]<<8)+buf[125]; |
974 |
} |
975 |
close(fd); |
976 |
} |
977 |
} |
978 |
} |
979 |
} |
980 |
endmntent(fdfs); |
981 |
#else |
982 |
/* initialize */ |
983 |
memset(&info, 0, sizeof(info)); |
984 |
strcpy(info.label, "RDESKTOP"); |
985 |
strcpy(info.type, "RDPFS"); |
986 |
|
987 |
#endif |
988 |
return &info; |
989 |
} |
990 |
|
991 |
|
992 |
NTSTATUS |
993 |
disk_query_volume_information(NTHANDLE handle, uint32 info_class, STREAM out) |
994 |
{ |
995 |
struct STATFS_T stat_fs; |
996 |
struct fileinfo *pfinfo; |
997 |
FsInfoType *fsinfo; |
998 |
|
999 |
pfinfo = &(g_fileinfo[handle]); |
1000 |
|
1001 |
if (STATFS_FN(pfinfo->path, &stat_fs) != 0) |
1002 |
{ |
1003 |
perror("statfs"); |
1004 |
return STATUS_ACCESS_DENIED; |
1005 |
} |
1006 |
|
1007 |
fsinfo = FsVolumeInfo(pfinfo->path); |
1008 |
|
1009 |
switch (info_class) |
1010 |
{ |
1011 |
case FileFsVolumeInformation: |
1012 |
|
1013 |
out_uint32_le(out, 0); /* volume creation time low */ |
1014 |
out_uint32_le(out, 0); /* volume creation time high */ |
1015 |
out_uint32_le(out, fsinfo->serial); /* serial */ |
1016 |
|
1017 |
out_uint32_le(out, 2 * strlen(fsinfo->label)); /* length of string */ |
1018 |
|
1019 |
out_uint8(out, 0); /* support objects? */ |
1020 |
rdp_out_unistr(out, fsinfo->label, 2 * strlen(fsinfo->label) - 2); |
1021 |
break; |
1022 |
|
1023 |
case FileFsSizeInformation: |
1024 |
|
1025 |
out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */ |
1026 |
out_uint32_le(out, 0); /* Total allocation high units */ |
1027 |
out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */ |
1028 |
out_uint32_le(out, 0); /* Available allowcation units */ |
1029 |
out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */ |
1030 |
out_uint32_le(out, 0x200); /* Bytes per sector */ |
1031 |
break; |
1032 |
|
1033 |
case FileFsAttributeInformation: |
1034 |
|
1035 |
out_uint32_le(out, FS_CASE_SENSITIVE | FS_CASE_IS_PRESERVED); /* fs attributes */ |
1036 |
out_uint32_le(out, F_NAMELEN(stat_fs)); /* max length of filename */ |
1037 |
|
1038 |
out_uint32_le(out, 2 * strlen(fsinfo->type)); /* length of fs_type */ |
1039 |
rdp_out_unistr(out, fsinfo->type, 2 * strlen(fsinfo->type) - 2); |
1040 |
break; |
1041 |
|
1042 |
case FileFsLabelInformation: |
1043 |
case FileFsDeviceInformation: |
1044 |
case FileFsControlInformation: |
1045 |
case FileFsFullSizeInformation: |
1046 |
case FileFsObjectIdInformation: |
1047 |
case FileFsMaximumInformation: |
1048 |
|
1049 |
default: |
1050 |
|
1051 |
unimpl("IRP Query Volume Information class: 0x%x\n", info_class); |
1052 |
return STATUS_INVALID_PARAMETER; |
1053 |
} |
1054 |
return STATUS_SUCCESS; |
1055 |
} |
1056 |
|
1057 |
NTSTATUS |
1058 |
disk_query_directory(NTHANDLE handle, uint32 info_class, char *pattern, STREAM out) |
1059 |
{ |
1060 |
uint32 file_attributes, ft_low, ft_high; |
1061 |
char *dirname, fullpath[256]; |
1062 |
DIR *pdir; |
1063 |
struct dirent *pdirent; |
1064 |
struct stat fstat; |
1065 |
struct fileinfo *pfinfo; |
1066 |
|
1067 |
pfinfo = &(g_fileinfo[handle]); |
1068 |
pdir = pfinfo->pdir; |
1069 |
dirname = pfinfo->path; |
1070 |
file_attributes = 0; |
1071 |
|
1072 |
switch (info_class) |
1073 |
{ |
1074 |
case FileBothDirectoryInformation: |
1075 |
|
1076 |
// If a search pattern is received, remember this pattern, and restart search |
1077 |
if (pattern[0] != 0) |
1078 |
{ |
1079 |
strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64); |
1080 |
rewinddir(pdir); |
1081 |
} |
1082 |
|
1083 |
// find next dirent matching pattern |
1084 |
pdirent = readdir(pdir); |
1085 |
while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0) |
1086 |
pdirent = readdir(pdir); |
1087 |
|
1088 |
if (pdirent == NULL) |
1089 |
return STATUS_NO_MORE_FILES; |
1090 |
|
1091 |
// Get information for directory entry |
1092 |
sprintf(fullpath, "%s/%s", dirname, pdirent->d_name); |
1093 |
|
1094 |
if (stat(fullpath, &fstat)) |
1095 |
{ |
1096 |
switch (errno) |
1097 |
{ |
1098 |
case ENOENT: |
1099 |
case ELOOP: |
1100 |
case EACCES: |
1101 |
/* These are non-fatal errors. */ |
1102 |
memset(&fstat, 0, sizeof(fstat)); |
1103 |
break; |
1104 |
default: |
1105 |
/* Fatal error. By returning STATUS_NO_SUCH_FILE, |
1106 |
the directory list operation will be aborted */ |
1107 |
perror(fullpath); |
1108 |
out_uint8(out, 0); |
1109 |
return STATUS_NO_SUCH_FILE; |
1110 |
} |
1111 |
} |
1112 |
|
1113 |
if (S_ISDIR(fstat.st_mode)) |
1114 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
1115 |
if (pdirent->d_name[0] == '.') |
1116 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
1117 |
if (!file_attributes) |
1118 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
1119 |
if (!(fstat.st_mode & S_IWUSR)) |
1120 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
1121 |
|
1122 |
// Return requested information |
1123 |
out_uint8s(out, 8); //unknown zero |
1124 |
|
1125 |
seconds_since_1970_to_filetime(get_create_time(&fstat), &ft_high, &ft_low); |
1126 |
out_uint32_le(out, ft_low); // create time |
1127 |
out_uint32_le(out, ft_high); |
1128 |
|
1129 |
seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low); |
1130 |
out_uint32_le(out, ft_low); //last_access_time |
1131 |
out_uint32_le(out, ft_high); |
1132 |
|
1133 |
seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low); |
1134 |
out_uint32_le(out, ft_low); //last_write_time |
1135 |
out_uint32_le(out, ft_high); |
1136 |
|
1137 |
seconds_since_1970_to_filetime(fstat.st_ctime, &ft_high, &ft_low); |
1138 |
out_uint32_le(out, ft_low); //change_write_time |
1139 |
out_uint32_le(out, ft_high); |
1140 |
|
1141 |
out_uint32_le(out, fstat.st_size); //filesize low |
1142 |
out_uint32_le(out, 0); //filesize high |
1143 |
out_uint32_le(out, fstat.st_size); //filesize low |
1144 |
out_uint32_le(out, 0); //filesize high |
1145 |
out_uint32_le(out, file_attributes); |
1146 |
out_uint8(out, 2 * strlen(pdirent->d_name) + 2); //unicode length |
1147 |
out_uint8s(out, 7); //pad? |
1148 |
out_uint8(out, 0); //8.3 file length |
1149 |
out_uint8s(out, 2 * 12); //8.3 unicode length |
1150 |
rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name)); |
1151 |
break; |
1152 |
|
1153 |
default: |
1154 |
/* FIXME: Support FileDirectoryInformation, |
1155 |
FileFullDirectoryInformation, and |
1156 |
FileNamesInformation */ |
1157 |
|
1158 |
unimpl("IRP Query Directory sub: 0x%x\n", info_class); |
1159 |
return STATUS_INVALID_PARAMETER; |
1160 |
} |
1161 |
|
1162 |
return STATUS_SUCCESS; |
1163 |
} |
1164 |
|
1165 |
|
1166 |
|
1167 |
static NTSTATUS |
1168 |
disk_device_control(NTHANDLE handle, uint32 request, STREAM in, STREAM out) |
1169 |
{ |
1170 |
if (((request >> 16) != 20) || ((request >> 16) != 9)) |
1171 |
return STATUS_INVALID_PARAMETER; |
1172 |
|
1173 |
/* extract operation */ |
1174 |
request >>= 2; |
1175 |
request &= 0xfff; |
1176 |
|
1177 |
printf("DISK IOCTL %d\n", request); |
1178 |
|
1179 |
switch (request) |
1180 |
{ |
1181 |
case 25: // ? |
1182 |
case 42: // ? |
1183 |
default: |
1184 |
unimpl("DISK IOCTL %d\n", request); |
1185 |
return STATUS_INVALID_PARAMETER; |
1186 |
} |
1187 |
|
1188 |
return STATUS_SUCCESS; |
1189 |
} |
1190 |
|
1191 |
DEVICE_FNS disk_fns = { |
1192 |
disk_create, |
1193 |
disk_close, |
1194 |
disk_read, |
1195 |
disk_write, |
1196 |
disk_device_control /* device_control */ |
1197 |
}; |