| 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 |
|
| 16 |
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 |
#else |
| 70 |
#include <sys/vfs.h> /* linux statfs */ |
| 71 |
#include <mntent.h> |
| 72 |
#define HAVE_MNTENT_H |
| 73 |
#define MNTENT_PATH "/etc/mtab" |
| 74 |
#define STATFS_FN(path, buf) (statfs(path,buf)) |
| 75 |
#define STATFS_T statfs |
| 76 |
#define F_NAMELEN(buf) ((buf).f_namelen) |
| 77 |
#endif |
| 78 |
|
| 79 |
#include "rdesktop.h" |
| 80 |
|
| 81 |
extern RDPDR_DEVICE g_rdpdr_device[]; |
| 82 |
|
| 83 |
FILEINFO g_fileinfo[MAX_OPEN_FILES]; |
| 84 |
|
| 85 |
typedef struct |
| 86 |
{ |
| 87 |
char name[256]; |
| 88 |
char label[256]; |
| 89 |
unsigned long serial; |
| 90 |
char type[256]; |
| 91 |
} FsInfoType; |
| 92 |
|
| 93 |
|
| 94 |
static time_t |
| 95 |
get_create_time(struct stat *st) |
| 96 |
{ |
| 97 |
time_t ret, ret1; |
| 98 |
|
| 99 |
ret = MIN(st->st_ctime, st->st_mtime); |
| 100 |
ret1 = MIN(ret, st->st_atime); |
| 101 |
|
| 102 |
if (ret1 != (time_t) 0) |
| 103 |
return ret1; |
| 104 |
|
| 105 |
return ret; |
| 106 |
} |
| 107 |
|
| 108 |
/* Convert seconds since 1970 to a filetime */ |
| 109 |
static void |
| 110 |
seconds_since_1970_to_filetime(time_t seconds, uint32 * high, uint32 * low) |
| 111 |
{ |
| 112 |
unsigned long long ticks; |
| 113 |
|
| 114 |
ticks = (seconds + 11644473600LL) * 10000000; |
| 115 |
*low = (uint32) ticks; |
| 116 |
*high = (uint32) (ticks >> 32); |
| 117 |
} |
| 118 |
|
| 119 |
/* Convert seconds since 1970 back to filetime */ |
| 120 |
static time_t |
| 121 |
convert_1970_to_filetime(uint32 high, uint32 low) |
| 122 |
{ |
| 123 |
unsigned long long ticks; |
| 124 |
time_t val; |
| 125 |
|
| 126 |
ticks = low + (((unsigned long long) high) << 32); |
| 127 |
ticks /= 10000000; |
| 128 |
ticks -= 11644473600LL; |
| 129 |
|
| 130 |
val = (time_t) ticks; |
| 131 |
return (val); |
| 132 |
|
| 133 |
} |
| 134 |
|
| 135 |
/* A wrapper for ftruncate which supports growing files, even if the |
| 136 |
native ftruncate doesn't. This is needed on Linux FAT filesystems, |
| 137 |
for example. */ |
| 138 |
static int |
| 139 |
ftruncate_growable(int fd, off_t length) |
| 140 |
{ |
| 141 |
int ret; |
| 142 |
off_t pos; |
| 143 |
static const char zero; |
| 144 |
|
| 145 |
/* Try the simple method first */ |
| 146 |
if ((ret = ftruncate(fd, length)) != -1) |
| 147 |
{ |
| 148 |
return ret; |
| 149 |
} |
| 150 |
|
| 151 |
/* |
| 152 |
* Some kind of error. Perhaps we were trying to grow. Retry |
| 153 |
* in a safe way. |
| 154 |
*/ |
| 155 |
|
| 156 |
/* Get current position */ |
| 157 |
if ((pos = lseek(fd, 0, SEEK_CUR)) == -1) |
| 158 |
{ |
| 159 |
perror("lseek"); |
| 160 |
return -1; |
| 161 |
} |
| 162 |
|
| 163 |
/* Seek to new size */ |
| 164 |
if (lseek(fd, length, SEEK_SET) == -1) |
| 165 |
{ |
| 166 |
perror("lseek"); |
| 167 |
return -1; |
| 168 |
} |
| 169 |
|
| 170 |
/* Write a zero */ |
| 171 |
if (write(fd, &zero, 1) == -1) |
| 172 |
{ |
| 173 |
perror("write"); |
| 174 |
return -1; |
| 175 |
} |
| 176 |
|
| 177 |
/* Truncate. This shouldn't fail. */ |
| 178 |
if (ftruncate(fd, length) == -1) |
| 179 |
{ |
| 180 |
perror("ftruncate"); |
| 181 |
return -1; |
| 182 |
} |
| 183 |
|
| 184 |
/* Restore position */ |
| 185 |
if (lseek(fd, pos, SEEK_SET) == -1) |
| 186 |
{ |
| 187 |
perror("lseek"); |
| 188 |
return -1; |
| 189 |
} |
| 190 |
|
| 191 |
return 0; |
| 192 |
} |
| 193 |
|
| 194 |
/* Just like open(2), but if a open with O_EXCL fails, retry with |
| 195 |
GUARDED semantics. This might be necessary because some filesystems |
| 196 |
(such as NFS filesystems mounted from a unfsd server) doesn't |
| 197 |
support O_EXCL. GUARDED semantics are subject to race conditions, |
| 198 |
but we can live with that. |
| 199 |
*/ |
| 200 |
static int |
| 201 |
open_weak_exclusive(const char *pathname, int flags, mode_t mode) |
| 202 |
{ |
| 203 |
int ret; |
| 204 |
struct stat statbuf; |
| 205 |
|
| 206 |
ret = open(pathname, flags, mode); |
| 207 |
if (ret != -1 || !(flags & O_EXCL)) |
| 208 |
{ |
| 209 |
/* Success, or not using O_EXCL */ |
| 210 |
return ret; |
| 211 |
} |
| 212 |
|
| 213 |
/* An error occured, and we are using O_EXCL. In case the FS |
| 214 |
doesn't support O_EXCL, some kind of error will be |
| 215 |
returned. Unfortunately, we don't know which one. Linux |
| 216 |
2.6.8 seems to return 524, but I cannot find a documented |
| 217 |
#define for this case. So, we'll return only on errors that |
| 218 |
we know aren't related to O_EXCL. */ |
| 219 |
switch (errno) |
| 220 |
{ |
| 221 |
case EACCES: |
| 222 |
case EEXIST: |
| 223 |
case EINTR: |
| 224 |
case EISDIR: |
| 225 |
case ELOOP: |
| 226 |
case ENAMETOOLONG: |
| 227 |
case ENOENT: |
| 228 |
case ENOTDIR: |
| 229 |
return ret; |
| 230 |
} |
| 231 |
|
| 232 |
/* Retry with GUARDED semantics */ |
| 233 |
if (stat(pathname, &statbuf) != -1) |
| 234 |
{ |
| 235 |
/* File exists */ |
| 236 |
errno = EEXIST; |
| 237 |
return -1; |
| 238 |
} |
| 239 |
else |
| 240 |
{ |
| 241 |
return open(pathname, flags & ~O_EXCL, mode); |
| 242 |
} |
| 243 |
} |
| 244 |
|
| 245 |
/* Enumeration of devices from rdesktop.c */ |
| 246 |
/* returns numer of units found and initialized. */ |
| 247 |
/* optarg looks like ':h=/mnt/floppy,b=/mnt/usbdevice1' */ |
| 248 |
/* when it arrives to this function. */ |
| 249 |
int |
| 250 |
disk_enum_devices(uint32 * id, char *optarg) |
| 251 |
{ |
| 252 |
char *pos = optarg; |
| 253 |
char *pos2; |
| 254 |
int count = 0; |
| 255 |
|
| 256 |
// skip the first colon |
| 257 |
optarg++; |
| 258 |
while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
| 259 |
{ |
| 260 |
pos2 = next_arg(optarg, '='); |
| 261 |
|
| 262 |
strncpy(g_rdpdr_device[*id].name, optarg, sizeof(g_rdpdr_device[*id].name)); |
| 263 |
if (strlen(optarg) > 8) |
| 264 |
fprintf(stderr, "share name %s truncated to %s\n", optarg, |
| 265 |
g_rdpdr_device[*id].name); |
| 266 |
|
| 267 |
g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
| 268 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
| 269 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_DISK; |
| 270 |
count++; |
| 271 |
(*id)++; |
| 272 |
|
| 273 |
optarg = pos; |
| 274 |
} |
| 275 |
return count; |
| 276 |
} |
| 277 |
|
| 278 |
/* Opens or creates a file or directory */ |
| 279 |
static NTSTATUS |
| 280 |
disk_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition, |
| 281 |
uint32 flags_and_attributes, char *filename, NTHANDLE * phandle) |
| 282 |
{ |
| 283 |
NTHANDLE handle; |
| 284 |
DIR *dirp; |
| 285 |
int flags, mode; |
| 286 |
char path[256]; |
| 287 |
struct stat filestat; |
| 288 |
|
| 289 |
handle = 0; |
| 290 |
dirp = NULL; |
| 291 |
flags = 0; |
| 292 |
mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; |
| 293 |
|
| 294 |
if (*filename && filename[strlen(filename) - 1] == '/') |
| 295 |
filename[strlen(filename) - 1] = 0; |
| 296 |
sprintf(path, "%s%s", g_rdpdr_device[device_id].local_path, filename); |
| 297 |
|
| 298 |
switch (create_disposition) |
| 299 |
{ |
| 300 |
case CREATE_ALWAYS: |
| 301 |
|
| 302 |
// Delete existing file/link. |
| 303 |
unlink(path); |
| 304 |
flags |= O_CREAT; |
| 305 |
break; |
| 306 |
|
| 307 |
case CREATE_NEW: |
| 308 |
|
| 309 |
// If the file already exists, then fail. |
| 310 |
flags |= O_CREAT | O_EXCL; |
| 311 |
break; |
| 312 |
|
| 313 |
case OPEN_ALWAYS: |
| 314 |
|
| 315 |
// Create if not already exists. |
| 316 |
flags |= O_CREAT; |
| 317 |
break; |
| 318 |
|
| 319 |
case OPEN_EXISTING: |
| 320 |
|
| 321 |
// Default behaviour |
| 322 |
break; |
| 323 |
|
| 324 |
case TRUNCATE_EXISTING: |
| 325 |
|
| 326 |
// If the file does not exist, then fail. |
| 327 |
flags |= O_TRUNC; |
| 328 |
break; |
| 329 |
} |
| 330 |
|
| 331 |
//printf("Open: \"%s\" flags: %u, accessmask: %u sharemode: %u create disp: %u\n", path, flags_and_attributes, accessmask, sharemode, create_disposition); |
| 332 |
|
| 333 |
// Get information about file and set that flag ourselfs |
| 334 |
if ((stat(path, &filestat) == 0) && (S_ISDIR(filestat.st_mode))) |
| 335 |
{ |
| 336 |
if (flags_and_attributes & FILE_NON_DIRECTORY_FILE) |
| 337 |
return STATUS_FILE_IS_A_DIRECTORY; |
| 338 |
else |
| 339 |
flags_and_attributes |= FILE_DIRECTORY_FILE; |
| 340 |
} |
| 341 |
|
| 342 |
if (flags_and_attributes & FILE_DIRECTORY_FILE) |
| 343 |
{ |
| 344 |
if (flags & O_CREAT) |
| 345 |
{ |
| 346 |
mkdir(path, mode); |
| 347 |
} |
| 348 |
|
| 349 |
dirp = opendir(path); |
| 350 |
if (!dirp) |
| 351 |
{ |
| 352 |
switch (errno) |
| 353 |
{ |
| 354 |
case EACCES: |
| 355 |
|
| 356 |
return STATUS_ACCESS_DENIED; |
| 357 |
|
| 358 |
case ENOENT: |
| 359 |
|
| 360 |
return STATUS_NO_SUCH_FILE; |
| 361 |
|
| 362 |
default: |
| 363 |
|
| 364 |
perror("opendir"); |
| 365 |
return STATUS_NO_SUCH_FILE; |
| 366 |
} |
| 367 |
} |
| 368 |
handle = DIRFD(dirp); |
| 369 |
} |
| 370 |
else |
| 371 |
{ |
| 372 |
|
| 373 |
if (accessmask & GENERIC_ALL |
| 374 |
|| (accessmask & GENERIC_READ && accessmask & GENERIC_WRITE)) |
| 375 |
{ |
| 376 |
flags |= O_RDWR; |
| 377 |
} |
| 378 |
else if ((accessmask & GENERIC_WRITE) && !(accessmask & GENERIC_READ)) |
| 379 |
{ |
| 380 |
flags |= O_WRONLY; |
| 381 |
} |
| 382 |
else |
| 383 |
{ |
| 384 |
flags |= O_RDONLY; |
| 385 |
} |
| 386 |
|
| 387 |
handle = open_weak_exclusive(path, flags, mode); |
| 388 |
if (handle == -1) |
| 389 |
{ |
| 390 |
switch (errno) |
| 391 |
{ |
| 392 |
case EISDIR: |
| 393 |
|
| 394 |
return STATUS_FILE_IS_A_DIRECTORY; |
| 395 |
|
| 396 |
case EACCES: |
| 397 |
|
| 398 |
return STATUS_ACCESS_DENIED; |
| 399 |
|
| 400 |
case ENOENT: |
| 401 |
|
| 402 |
return STATUS_NO_SUCH_FILE; |
| 403 |
case EEXIST: |
| 404 |
|
| 405 |
return STATUS_OBJECT_NAME_COLLISION; |
| 406 |
default: |
| 407 |
|
| 408 |
perror("open"); |
| 409 |
return STATUS_NO_SUCH_FILE; |
| 410 |
} |
| 411 |
} |
| 412 |
|
| 413 |
/* all read and writes of files should be non blocking */ |
| 414 |
if (fcntl(handle, F_SETFL, O_NONBLOCK) == -1) |
| 415 |
perror("fcntl"); |
| 416 |
} |
| 417 |
|
| 418 |
if (handle >= MAX_OPEN_FILES) |
| 419 |
{ |
| 420 |
error("Maximum number of open files (%s) reached. Increase MAX_OPEN_FILES!\n", |
| 421 |
handle); |
| 422 |
exit(1); |
| 423 |
} |
| 424 |
|
| 425 |
if (dirp) |
| 426 |
g_fileinfo[handle].pdir = dirp; |
| 427 |
g_fileinfo[handle].device_id = device_id; |
| 428 |
g_fileinfo[handle].flags_and_attributes = flags_and_attributes; |
| 429 |
strncpy(g_fileinfo[handle].path, path, 255); |
| 430 |
|
| 431 |
*phandle = handle; |
| 432 |
return STATUS_SUCCESS; |
| 433 |
} |
| 434 |
|
| 435 |
static NTSTATUS |
| 436 |
disk_close(NTHANDLE handle) |
| 437 |
{ |
| 438 |
struct fileinfo *pfinfo; |
| 439 |
|
| 440 |
pfinfo = &(g_fileinfo[handle]); |
| 441 |
|
| 442 |
if (pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE) |
| 443 |
{ |
| 444 |
closedir(pfinfo->pdir); |
| 445 |
//FIXME: Should check exit code |
| 446 |
} |
| 447 |
else |
| 448 |
{ |
| 449 |
close(handle); |
| 450 |
} |
| 451 |
|
| 452 |
return STATUS_SUCCESS; |
| 453 |
} |
| 454 |
|
| 455 |
static NTSTATUS |
| 456 |
disk_read(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
| 457 |
{ |
| 458 |
int n; |
| 459 |
|
| 460 |
#if 0 |
| 461 |
/* browsing dir ???? */ |
| 462 |
/* each request is 24 bytes */ |
| 463 |
if (g_fileinfo[handle].flags_and_attributes & FILE_DIRECTORY_FILE) |
| 464 |
{ |
| 465 |
*result = 0; |
| 466 |
return STATUS_SUCCESS; |
| 467 |
} |
| 468 |
#endif |
| 469 |
|
| 470 |
lseek(handle, offset, SEEK_SET); |
| 471 |
|
| 472 |
n = read(handle, data, length); |
| 473 |
|
| 474 |
if (n < 0) |
| 475 |
{ |
| 476 |
*result = 0; |
| 477 |
switch (errno) |
| 478 |
{ |
| 479 |
case EISDIR: |
| 480 |
return STATUS_FILE_IS_A_DIRECTORY; |
| 481 |
default: |
| 482 |
perror("read"); |
| 483 |
return STATUS_INVALID_PARAMETER; |
| 484 |
} |
| 485 |
} |
| 486 |
|
| 487 |
*result = n; |
| 488 |
|
| 489 |
return STATUS_SUCCESS; |
| 490 |
} |
| 491 |
|
| 492 |
static NTSTATUS |
| 493 |
disk_write(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
| 494 |
{ |
| 495 |
int n; |
| 496 |
|
| 497 |
lseek(handle, offset, SEEK_SET); |
| 498 |
|
| 499 |
n = write(handle, data, length); |
| 500 |
|
| 501 |
if (n < 0) |
| 502 |
{ |
| 503 |
perror("write"); |
| 504 |
*result = 0; |
| 505 |
switch (errno) |
| 506 |
{ |
| 507 |
case ENOSPC: |
| 508 |
return STATUS_DISK_FULL; |
| 509 |
default: |
| 510 |
return STATUS_ACCESS_DENIED; |
| 511 |
} |
| 512 |
} |
| 513 |
|
| 514 |
*result = n; |
| 515 |
|
| 516 |
return STATUS_SUCCESS; |
| 517 |
} |
| 518 |
|
| 519 |
NTSTATUS |
| 520 |
disk_query_information(NTHANDLE handle, uint32 info_class, STREAM out) |
| 521 |
{ |
| 522 |
uint32 file_attributes, ft_high, ft_low; |
| 523 |
struct stat filestat; |
| 524 |
char *path, *filename; |
| 525 |
|
| 526 |
path = g_fileinfo[handle].path; |
| 527 |
|
| 528 |
// Get information about file |
| 529 |
if (fstat(handle, &filestat) != 0) |
| 530 |
{ |
| 531 |
perror("stat"); |
| 532 |
out_uint8(out, 0); |
| 533 |
return STATUS_ACCESS_DENIED; |
| 534 |
} |
| 535 |
|
| 536 |
// Set file attributes |
| 537 |
file_attributes = 0; |
| 538 |
if (S_ISDIR(filestat.st_mode)) |
| 539 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
| 540 |
|
| 541 |
filename = 1 + strrchr(path, '/'); |
| 542 |
if (filename && filename[0] == '.') |
| 543 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
| 544 |
|
| 545 |
if (!file_attributes) |
| 546 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
| 547 |
|
| 548 |
if (!(filestat.st_mode & S_IWUSR)) |
| 549 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
| 550 |
|
| 551 |
// Return requested data |
| 552 |
switch (info_class) |
| 553 |
{ |
| 554 |
case FileBasicInformation: |
| 555 |
seconds_since_1970_to_filetime(get_create_time(&filestat), &ft_high, |
| 556 |
&ft_low); |
| 557 |
out_uint32_le(out, ft_low); //create_access_time |
| 558 |
out_uint32_le(out, ft_high); |
| 559 |
|
| 560 |
seconds_since_1970_to_filetime(filestat.st_atime, &ft_high, &ft_low); |
| 561 |
out_uint32_le(out, ft_low); //last_access_time |
| 562 |
out_uint32_le(out, ft_high); |
| 563 |
|
| 564 |
seconds_since_1970_to_filetime(filestat.st_mtime, &ft_high, &ft_low); |
| 565 |
out_uint32_le(out, ft_low); //last_write_time |
| 566 |
out_uint32_le(out, ft_high); |
| 567 |
|
| 568 |
seconds_since_1970_to_filetime(filestat.st_ctime, &ft_high, &ft_low); |
| 569 |
out_uint32_le(out, ft_low); //last_change_time |
| 570 |
out_uint32_le(out, ft_high); |
| 571 |
|
| 572 |
out_uint32_le(out, file_attributes); |
| 573 |
break; |
| 574 |
|
| 575 |
case FileStandardInformation: |
| 576 |
|
| 577 |
out_uint32_le(out, filestat.st_size); //Allocation size |
| 578 |
out_uint32_le(out, 0); |
| 579 |
out_uint32_le(out, filestat.st_size); //End of file |
| 580 |
out_uint32_le(out, 0); |
| 581 |
out_uint32_le(out, filestat.st_nlink); //Number of links |
| 582 |
out_uint8(out, 0); //Delete pending |
| 583 |
out_uint8(out, S_ISDIR(filestat.st_mode) ? 1 : 0); //Directory |
| 584 |
break; |
| 585 |
|
| 586 |
case FileObjectIdInformation: |
| 587 |
|
| 588 |
out_uint32_le(out, file_attributes); /* File Attributes */ |
| 589 |
out_uint32_le(out, 0); /* Reparse Tag */ |
| 590 |
break; |
| 591 |
|
| 592 |
default: |
| 593 |
|
| 594 |
unimpl("IRP Query (File) Information class: 0x%x\n", info_class); |
| 595 |
return STATUS_INVALID_PARAMETER; |
| 596 |
} |
| 597 |
return STATUS_SUCCESS; |
| 598 |
} |
| 599 |
|
| 600 |
NTSTATUS |
| 601 |
disk_set_information(NTHANDLE handle, uint32 info_class, STREAM in, STREAM out) |
| 602 |
{ |
| 603 |
uint32 length, file_attributes, ft_high, ft_low; |
| 604 |
char newname[256], fullpath[256]; |
| 605 |
struct fileinfo *pfinfo; |
| 606 |
|
| 607 |
int mode; |
| 608 |
struct stat filestat; |
| 609 |
time_t write_time, change_time, access_time, mod_time; |
| 610 |
struct utimbuf tvs; |
| 611 |
struct STATFS_T stat_fs; |
| 612 |
|
| 613 |
pfinfo = &(g_fileinfo[handle]); |
| 614 |
|
| 615 |
switch (info_class) |
| 616 |
{ |
| 617 |
case FileBasicInformation: |
| 618 |
write_time = change_time = access_time = 0; |
| 619 |
|
| 620 |
in_uint8s(in, 4); /* Handle of root dir? */ |
| 621 |
in_uint8s(in, 24); /* unknown */ |
| 622 |
|
| 623 |
// CreationTime |
| 624 |
in_uint32_le(in, ft_low); |
| 625 |
in_uint32_le(in, ft_high); |
| 626 |
|
| 627 |
// AccessTime |
| 628 |
in_uint32_le(in, ft_low); |
| 629 |
in_uint32_le(in, ft_high); |
| 630 |
if (ft_low || ft_high) |
| 631 |
access_time = convert_1970_to_filetime(ft_high, ft_low); |
| 632 |
|
| 633 |
// WriteTime |
| 634 |
in_uint32_le(in, ft_low); |
| 635 |
in_uint32_le(in, ft_high); |
| 636 |
if (ft_low || ft_high) |
| 637 |
write_time = convert_1970_to_filetime(ft_high, ft_low); |
| 638 |
|
| 639 |
// ChangeTime |
| 640 |
in_uint32_le(in, ft_low); |
| 641 |
in_uint32_le(in, ft_high); |
| 642 |
if (ft_low || ft_high) |
| 643 |
change_time = convert_1970_to_filetime(ft_high, ft_low); |
| 644 |
|
| 645 |
in_uint32_le(in, file_attributes); |
| 646 |
|
| 647 |
if (fstat(handle, &filestat)) |
| 648 |
return STATUS_ACCESS_DENIED; |
| 649 |
|
| 650 |
tvs.modtime = filestat.st_mtime; |
| 651 |
tvs.actime = filestat.st_atime; |
| 652 |
if (access_time) |
| 653 |
tvs.actime = access_time; |
| 654 |
|
| 655 |
|
| 656 |
if (write_time || change_time) |
| 657 |
mod_time = MIN(write_time, change_time); |
| 658 |
else |
| 659 |
mod_time = write_time ? write_time : change_time; |
| 660 |
|
| 661 |
if (mod_time) |
| 662 |
tvs.modtime = mod_time; |
| 663 |
|
| 664 |
|
| 665 |
if (access_time || write_time || change_time) |
| 666 |
{ |
| 667 |
#if WITH_DEBUG_RDP5 |
| 668 |
printf("FileBasicInformation access time %s", |
| 669 |
ctime(&tvs.actime)); |
| 670 |
printf("FileBasicInformation modification time %s", |
| 671 |
ctime(&tvs.modtime)); |
| 672 |
#endif |
| 673 |
if (utime(pfinfo->path, &tvs)) |
| 674 |
return STATUS_ACCESS_DENIED; |
| 675 |
} |
| 676 |
|
| 677 |
if (!file_attributes) |
| 678 |
break; // not valid |
| 679 |
|
| 680 |
mode = filestat.st_mode; |
| 681 |
|
| 682 |
if (file_attributes & FILE_ATTRIBUTE_READONLY) |
| 683 |
mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); |
| 684 |
else |
| 685 |
mode |= S_IWUSR; |
| 686 |
|
| 687 |
mode &= 0777; |
| 688 |
#if WITH_DEBUG_RDP5 |
| 689 |
printf("FileBasicInformation set access mode 0%o", mode); |
| 690 |
#endif |
| 691 |
|
| 692 |
if (fchmod(handle, mode)) |
| 693 |
return STATUS_ACCESS_DENIED; |
| 694 |
|
| 695 |
break; |
| 696 |
|
| 697 |
case FileRenameInformation: |
| 698 |
|
| 699 |
in_uint8s(in, 4); /* Handle of root dir? */ |
| 700 |
in_uint8s(in, 0x1a); /* unknown */ |
| 701 |
in_uint32_le(in, length); |
| 702 |
|
| 703 |
if (length && (length / 2) < 256) |
| 704 |
{ |
| 705 |
rdp_in_unistr(in, newname, length); |
| 706 |
convert_to_unix_filename(newname); |
| 707 |
} |
| 708 |
else |
| 709 |
{ |
| 710 |
return STATUS_INVALID_PARAMETER; |
| 711 |
} |
| 712 |
|
| 713 |
sprintf(fullpath, "%s%s", g_rdpdr_device[pfinfo->device_id].local_path, |
| 714 |
newname); |
| 715 |
|
| 716 |
if (rename(pfinfo->path, fullpath) != 0) |
| 717 |
{ |
| 718 |
perror("rename"); |
| 719 |
return STATUS_ACCESS_DENIED; |
| 720 |
} |
| 721 |
break; |
| 722 |
|
| 723 |
case FileDispositionInformation: |
| 724 |
/* As far as I understand it, the correct |
| 725 |
thing to do here is to *schedule* a delete, |
| 726 |
so it will be deleted when the file is |
| 727 |
closed. Subsequent |
| 728 |
FileDispositionInformation requests with |
| 729 |
DeleteFile set to FALSE should unschedule |
| 730 |
the delete. See |
| 731 |
http://www.osronline.com/article.cfm?article=245. Currently, |
| 732 |
we are deleting the file immediately. I |
| 733 |
guess this is a FIXME. */ |
| 734 |
|
| 735 |
//in_uint32_le(in, delete_on_close); |
| 736 |
|
| 737 |
/* Make sure we close the file before |
| 738 |
unlinking it. Not doing so would trigger |
| 739 |
silly-delete if using NFS, which might fail |
| 740 |
on FAT floppies, for example. */ |
| 741 |
disk_close(handle); |
| 742 |
|
| 743 |
if ((pfinfo->flags_and_attributes & FILE_DIRECTORY_FILE)) // remove a directory |
| 744 |
{ |
| 745 |
if (rmdir(pfinfo->path) < 0) |
| 746 |
return STATUS_ACCESS_DENIED; |
| 747 |
} |
| 748 |
else if (unlink(pfinfo->path) < 0) // unlink a file |
| 749 |
return STATUS_ACCESS_DENIED; |
| 750 |
|
| 751 |
break; |
| 752 |
|
| 753 |
case FileAllocationInformation: |
| 754 |
/* Fall through to FileEndOfFileInformation, |
| 755 |
which uses ftrunc. This is like Samba with |
| 756 |
"strict allocation = false", and means that |
| 757 |
we won't detect out-of-quota errors, for |
| 758 |
example. */ |
| 759 |
|
| 760 |
case FileEndOfFileInformation: |
| 761 |
in_uint8s(in, 28); /* unknown */ |
| 762 |
in_uint32_le(in, length); /* file size */ |
| 763 |
|
| 764 |
/* prevents start of writing if not enough space left on device */ |
| 765 |
if (STATFS_FN(g_rdpdr_device[pfinfo->device_id].local_path, &stat_fs) == 0) |
| 766 |
if (stat_fs.f_bsize * stat_fs.f_bfree < length) |
| 767 |
return STATUS_DISK_FULL; |
| 768 |
|
| 769 |
if (ftruncate_growable(handle, length) != 0) |
| 770 |
{ |
| 771 |
return STATUS_DISK_FULL; |
| 772 |
} |
| 773 |
|
| 774 |
break; |
| 775 |
default: |
| 776 |
|
| 777 |
unimpl("IRP Set File Information class: 0x%x\n", info_class); |
| 778 |
return STATUS_INVALID_PARAMETER; |
| 779 |
} |
| 780 |
return STATUS_SUCCESS; |
| 781 |
} |
| 782 |
|
| 783 |
static FsInfoType * |
| 784 |
FsVolumeInfo(char *fpath) |
| 785 |
{ |
| 786 |
|
| 787 |
#ifdef HAVE_MNTENT_H |
| 788 |
FILE *fdfs; |
| 789 |
struct mntent *e; |
| 790 |
static FsInfoType info; |
| 791 |
|
| 792 |
/* initialize */ |
| 793 |
memset(&info, 0, sizeof(info)); |
| 794 |
strcpy(info.label, "RDESKTOP"); |
| 795 |
strcpy(info.type, "RDPFS"); |
| 796 |
|
| 797 |
fdfs = setmntent(MNTENT_PATH, "r"); |
| 798 |
if (!fdfs) |
| 799 |
return &info; |
| 800 |
|
| 801 |
while ((e = getmntent(fdfs))) |
| 802 |
{ |
| 803 |
if (strncmp(fpath, e->mnt_dir, strlen(fpath)) == 0) |
| 804 |
{ |
| 805 |
strcpy(info.type, e->mnt_type); |
| 806 |
strcpy(info.name, e->mnt_fsname); |
| 807 |
if (strstr(e->mnt_opts, "vfat") || strstr(e->mnt_opts, "iso9660")) |
| 808 |
{ |
| 809 |
int fd = open(e->mnt_fsname, O_RDONLY); |
| 810 |
if (fd >= 0) |
| 811 |
{ |
| 812 |
unsigned char buf[512]; |
| 813 |
memset(buf, 0, sizeof(buf)); |
| 814 |
if (strstr(e->mnt_opts, "vfat")) |
| 815 |
/*FAT*/ |
| 816 |
{ |
| 817 |
strcpy(info.type, "vfat"); |
| 818 |
read(fd, buf, sizeof(buf)); |
| 819 |
info.serial = |
| 820 |
(buf[42] << 24) + (buf[41] << 16) + |
| 821 |
(buf[40] << 8) + buf[39]; |
| 822 |
strncpy(info.label, buf + 43, 10); |
| 823 |
info.label[10] = '\0'; |
| 824 |
} |
| 825 |
else if (lseek(fd, 32767, SEEK_SET) >= 0) /* ISO9660 */ |
| 826 |
{ |
| 827 |
read(fd, buf, sizeof(buf)); |
| 828 |
strncpy(info.label, buf + 41, 32); |
| 829 |
info.label[32] = '\0'; |
| 830 |
//info.Serial = (buf[128]<<24)+(buf[127]<<16)+(buf[126]<<8)+buf[125]; |
| 831 |
} |
| 832 |
close(fd); |
| 833 |
} |
| 834 |
} |
| 835 |
} |
| 836 |
} |
| 837 |
endmntent(fdfs); |
| 838 |
#else |
| 839 |
static FsInfoType info; |
| 840 |
|
| 841 |
/* initialize */ |
| 842 |
memset(&info, 0, sizeof(info)); |
| 843 |
strcpy(info.label, "RDESKTOP"); |
| 844 |
strcpy(info.type, "RDPFS"); |
| 845 |
|
| 846 |
#endif |
| 847 |
return &info; |
| 848 |
} |
| 849 |
|
| 850 |
|
| 851 |
NTSTATUS |
| 852 |
disk_query_volume_information(NTHANDLE handle, uint32 info_class, STREAM out) |
| 853 |
{ |
| 854 |
struct STATFS_T stat_fs; |
| 855 |
struct fileinfo *pfinfo; |
| 856 |
FsInfoType *fsinfo; |
| 857 |
|
| 858 |
pfinfo = &(g_fileinfo[handle]); |
| 859 |
|
| 860 |
if (STATFS_FN(pfinfo->path, &stat_fs) != 0) |
| 861 |
{ |
| 862 |
perror("statfs"); |
| 863 |
return STATUS_ACCESS_DENIED; |
| 864 |
} |
| 865 |
|
| 866 |
fsinfo = FsVolumeInfo(pfinfo->path); |
| 867 |
|
| 868 |
switch (info_class) |
| 869 |
{ |
| 870 |
case FileFsVolumeInformation: |
| 871 |
|
| 872 |
out_uint32_le(out, 0); /* volume creation time low */ |
| 873 |
out_uint32_le(out, 0); /* volume creation time high */ |
| 874 |
out_uint32_le(out, fsinfo->serial); /* serial */ |
| 875 |
|
| 876 |
out_uint32_le(out, 2 * strlen(fsinfo->label)); /* length of string */ |
| 877 |
|
| 878 |
out_uint8(out, 0); /* support objects? */ |
| 879 |
rdp_out_unistr(out, fsinfo->label, 2 * strlen(fsinfo->label) - 2); |
| 880 |
break; |
| 881 |
|
| 882 |
case FileFsSizeInformation: |
| 883 |
|
| 884 |
out_uint32_le(out, stat_fs.f_blocks); /* Total allocation units low */ |
| 885 |
out_uint32_le(out, 0); /* Total allocation high units */ |
| 886 |
out_uint32_le(out, stat_fs.f_bfree); /* Available allocation units */ |
| 887 |
out_uint32_le(out, 0); /* Available allowcation units */ |
| 888 |
out_uint32_le(out, stat_fs.f_bsize / 0x200); /* Sectors per allocation unit */ |
| 889 |
out_uint32_le(out, 0x200); /* Bytes per sector */ |
| 890 |
break; |
| 891 |
|
| 892 |
case FileFsAttributeInformation: |
| 893 |
|
| 894 |
out_uint32_le(out, FS_CASE_SENSITIVE | FS_CASE_IS_PRESERVED); /* fs attributes */ |
| 895 |
out_uint32_le(out, F_NAMELEN(stat_fs)); /* max length of filename */ |
| 896 |
|
| 897 |
out_uint32_le(out, 2 * strlen(fsinfo->type)); /* length of fs_type */ |
| 898 |
rdp_out_unistr(out, fsinfo->type, 2 * strlen(fsinfo->type) - 2); |
| 899 |
break; |
| 900 |
|
| 901 |
case FileFsLabelInformation: |
| 902 |
case FileFsDeviceInformation: |
| 903 |
case FileFsControlInformation: |
| 904 |
case FileFsFullSizeInformation: |
| 905 |
case FileFsObjectIdInformation: |
| 906 |
case FileFsMaximumInformation: |
| 907 |
|
| 908 |
default: |
| 909 |
|
| 910 |
unimpl("IRP Query Volume Information class: 0x%x\n", info_class); |
| 911 |
return STATUS_INVALID_PARAMETER; |
| 912 |
} |
| 913 |
return STATUS_SUCCESS; |
| 914 |
} |
| 915 |
|
| 916 |
NTSTATUS |
| 917 |
disk_query_directory(NTHANDLE handle, uint32 info_class, char *pattern, STREAM out) |
| 918 |
{ |
| 919 |
uint32 file_attributes, ft_low, ft_high; |
| 920 |
char *dirname, fullpath[256]; |
| 921 |
DIR *pdir; |
| 922 |
struct dirent *pdirent; |
| 923 |
struct stat fstat; |
| 924 |
struct fileinfo *pfinfo; |
| 925 |
|
| 926 |
pfinfo = &(g_fileinfo[handle]); |
| 927 |
pdir = pfinfo->pdir; |
| 928 |
dirname = pfinfo->path; |
| 929 |
file_attributes = 0; |
| 930 |
|
| 931 |
switch (info_class) |
| 932 |
{ |
| 933 |
case FileBothDirectoryInformation: |
| 934 |
|
| 935 |
// If a search pattern is received, remember this pattern, and restart search |
| 936 |
if (pattern[0] != 0) |
| 937 |
{ |
| 938 |
strncpy(pfinfo->pattern, 1 + strrchr(pattern, '/'), 64); |
| 939 |
rewinddir(pdir); |
| 940 |
} |
| 941 |
|
| 942 |
// find next dirent matching pattern |
| 943 |
pdirent = readdir(pdir); |
| 944 |
while (pdirent && fnmatch(pfinfo->pattern, pdirent->d_name, 0) != 0) |
| 945 |
pdirent = readdir(pdir); |
| 946 |
|
| 947 |
if (pdirent == NULL) |
| 948 |
return STATUS_NO_MORE_FILES; |
| 949 |
|
| 950 |
// Get information for directory entry |
| 951 |
sprintf(fullpath, "%s/%s", dirname, pdirent->d_name); |
| 952 |
|
| 953 |
if (stat(fullpath, &fstat)) |
| 954 |
{ |
| 955 |
switch (errno) |
| 956 |
{ |
| 957 |
case ENOENT: |
| 958 |
case ELOOP: |
| 959 |
case EACCES: |
| 960 |
/* These are non-fatal errors. */ |
| 961 |
memset(&fstat, 0, sizeof(fstat)); |
| 962 |
break; |
| 963 |
default: |
| 964 |
/* Fatal error. By returning STATUS_NO_SUCH_FILE, |
| 965 |
the directory list operation will be aborted */ |
| 966 |
perror(fullpath); |
| 967 |
out_uint8(out, 0); |
| 968 |
return STATUS_NO_SUCH_FILE; |
| 969 |
} |
| 970 |
} |
| 971 |
|
| 972 |
if (S_ISDIR(fstat.st_mode)) |
| 973 |
file_attributes |= FILE_ATTRIBUTE_DIRECTORY; |
| 974 |
if (pdirent->d_name[0] == '.') |
| 975 |
file_attributes |= FILE_ATTRIBUTE_HIDDEN; |
| 976 |
if (!file_attributes) |
| 977 |
file_attributes |= FILE_ATTRIBUTE_NORMAL; |
| 978 |
if (!(fstat.st_mode & S_IWUSR)) |
| 979 |
file_attributes |= FILE_ATTRIBUTE_READONLY; |
| 980 |
|
| 981 |
// Return requested information |
| 982 |
out_uint8s(out, 8); //unknown zero |
| 983 |
|
| 984 |
seconds_since_1970_to_filetime(get_create_time(&fstat), &ft_high, &ft_low); |
| 985 |
out_uint32_le(out, ft_low); // create time |
| 986 |
out_uint32_le(out, ft_high); |
| 987 |
|
| 988 |
seconds_since_1970_to_filetime(fstat.st_atime, &ft_high, &ft_low); |
| 989 |
out_uint32_le(out, ft_low); //last_access_time |
| 990 |
out_uint32_le(out, ft_high); |
| 991 |
|
| 992 |
seconds_since_1970_to_filetime(fstat.st_mtime, &ft_high, &ft_low); |
| 993 |
out_uint32_le(out, ft_low); //last_write_time |
| 994 |
out_uint32_le(out, ft_high); |
| 995 |
|
| 996 |
seconds_since_1970_to_filetime(fstat.st_ctime, &ft_high, &ft_low); |
| 997 |
out_uint32_le(out, ft_low); //change_write_time |
| 998 |
out_uint32_le(out, ft_high); |
| 999 |
|
| 1000 |
out_uint32_le(out, fstat.st_size); //filesize low |
| 1001 |
out_uint32_le(out, 0); //filesize high |
| 1002 |
out_uint32_le(out, fstat.st_size); //filesize low |
| 1003 |
out_uint32_le(out, 0); //filesize high |
| 1004 |
out_uint32_le(out, file_attributes); |
| 1005 |
out_uint8(out, 2 * strlen(pdirent->d_name) + 2); //unicode length |
| 1006 |
out_uint8s(out, 7); //pad? |
| 1007 |
out_uint8(out, 0); //8.3 file length |
| 1008 |
out_uint8s(out, 2 * 12); //8.3 unicode length |
| 1009 |
rdp_out_unistr(out, pdirent->d_name, 2 * strlen(pdirent->d_name)); |
| 1010 |
break; |
| 1011 |
|
| 1012 |
default: |
| 1013 |
/* FIXME: Support FileDirectoryInformation, |
| 1014 |
FileFullDirectoryInformation, and |
| 1015 |
FileNamesInformation */ |
| 1016 |
|
| 1017 |
unimpl("IRP Query Directory sub: 0x%x\n", info_class); |
| 1018 |
return STATUS_INVALID_PARAMETER; |
| 1019 |
} |
| 1020 |
|
| 1021 |
return STATUS_SUCCESS; |
| 1022 |
} |
| 1023 |
|
| 1024 |
|
| 1025 |
|
| 1026 |
static NTSTATUS |
| 1027 |
disk_device_control(NTHANDLE handle, uint32 request, STREAM in, STREAM out) |
| 1028 |
{ |
| 1029 |
if (((request >> 16) != 20) || ((request >> 16) != 9)) |
| 1030 |
return STATUS_INVALID_PARAMETER; |
| 1031 |
|
| 1032 |
/* extract operation */ |
| 1033 |
request >>= 2; |
| 1034 |
request &= 0xfff; |
| 1035 |
|
| 1036 |
printf("DISK IOCTL %d\n", request); |
| 1037 |
|
| 1038 |
switch (request) |
| 1039 |
{ |
| 1040 |
case 25: // ? |
| 1041 |
case 42: // ? |
| 1042 |
default: |
| 1043 |
unimpl("DISK IOCTL %d\n", request); |
| 1044 |
return STATUS_INVALID_PARAMETER; |
| 1045 |
} |
| 1046 |
|
| 1047 |
return STATUS_SUCCESS; |
| 1048 |
} |
| 1049 |
|
| 1050 |
DEVICE_FNS disk_fns = { |
| 1051 |
disk_create, |
| 1052 |
disk_close, |
| 1053 |
disk_read, |
| 1054 |
disk_write, |
| 1055 |
disk_device_control /* device_control */ |
| 1056 |
}; |
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