2 Unix SMB/CIFS implementation.
3 process incoming packets - main loop
4 Copyright (C) Andrew Tridgell 1992-1998
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.
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.
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.
23 struct timeval smb_last_time
;
25 static char *InBuffer
= NULL
;
26 char *OutBuffer
= NULL
;
27 char *last_inbuf
= NULL
;
30 * Size of data we can send to client. Set
31 * by the client for all protocols above CORE.
32 * Set by us for CORE protocol.
34 int max_send
= BUFFER_SIZE
;
36 * Size of the data we can receive. Set by us.
37 * Can be modified by the max xmit parameter.
39 int max_recv
= BUFFER_SIZE
;
41 extern int last_message
;
42 extern int global_oplock_break
;
43 extern userdom_struct current_user_info
;
44 extern int smb_read_error
;
45 SIG_ATOMIC_T reload_after_sighup
;
46 SIG_ATOMIC_T got_sig_term
;
47 extern BOOL global_machine_password_needs_changing
;
48 extern fstring global_myworkgroup
;
49 extern pstring global_myname
;
52 /****************************************************************************
53 structure to hold a linked list of queued messages.
55 ****************************************************************************/
61 } pending_message_list
;
63 static ubi_slList smb_oplock_queue
= { NULL
, (ubi_slNodePtr
)&smb_oplock_queue
, 0};
65 /****************************************************************************
66 Function to push a message onto the tail of a linked list of smb messages ready
68 ****************************************************************************/
70 static BOOL
push_message(ubi_slList
*list_head
, char *buf
, int msg_len
)
72 pending_message_list
*msg
= (pending_message_list
*)
73 malloc(sizeof(pending_message_list
));
77 DEBUG(0,("push_message: malloc fail (1)\n"));
81 msg
->msg_buf
= (char *)malloc(msg_len
);
82 if(msg
->msg_buf
== NULL
)
84 DEBUG(0,("push_message: malloc fail (2)\n"));
89 memcpy(msg
->msg_buf
, buf
, msg_len
);
90 msg
->msg_len
= msg_len
;
92 ubi_slAddTail( list_head
, msg
);
97 /****************************************************************************
98 Function to push a smb message onto a linked list of local smb messages ready
100 ****************************************************************************/
102 BOOL
push_oplock_pending_smb_message(char *buf
, int msg_len
)
104 return push_message(&smb_oplock_queue
, buf
, msg_len
);
107 /****************************************************************************
108 Do all async processing in here. This includes UDB oplock messages, kernel
109 oplock messages, change notify events etc.
110 ****************************************************************************/
112 static void async_processing(char *buffer
, int buffer_len
)
114 DEBUG(10,("async_processing: Doing async processing.\n"));
116 /* check for oplock messages (both UDP and kernel) */
117 if (receive_local_message(buffer
, buffer_len
, 1)) {
118 process_local_message(buffer
, buffer_len
);
122 exit_server("Caught TERM signal");
125 /* check for async change notify events */
126 process_pending_change_notify_queue(0);
128 /* check for sighup processing */
129 if (reload_after_sighup
) {
130 change_to_root_user();
131 DEBUG(1,("Reloading services after SIGHUP\n"));
132 reload_services(False
);
133 reload_after_sighup
= 0;
137 /****************************************************************************
138 Do a select on an two fd's - with timeout.
140 If a local udp message has been pushed onto the
141 queue (this can only happen during oplock break
142 processing) call async_processing()
144 If a pending smb message has been pushed onto the
145 queue (this can only happen during oplock break
146 processing) return this next.
148 If the first smbfd is ready then read an smb from it.
149 if the second (loopback UDP) fd is ready then read a message
150 from it and setup the buffer header to identify the length
152 Returns False on timeout or error.
155 The timeout is in milliseconds
156 ****************************************************************************/
158 static BOOL
receive_message_or_smb(char *buffer
, int buffer_len
, int timeout
)
170 * Note that this call must be before processing any SMB
171 * messages as we need to synchronously process any messages
172 * we may have sent to ourselves from the previous SMB.
177 * Check to see if we already have a message on the smb queue.
178 * If so - copy and return it.
180 if(ubi_slCount(&smb_oplock_queue
) != 0) {
181 pending_message_list
*msg
= (pending_message_list
*)ubi_slRemHead(&smb_oplock_queue
);
182 memcpy(buffer
, msg
->msg_buf
, MIN(buffer_len
, msg
->msg_len
));
184 /* Free the message we just copied. */
185 SAFE_FREE(msg
->msg_buf
);
188 DEBUG(5,("receive_message_or_smb: returning queued smb message.\n"));
194 * Setup the select read fd set.
200 * Ensure we process oplock break messages by preference.
201 * We have to do this before the select, after the select
202 * and if the select returns EINTR. This is due to the fact
203 * that the selects called from async_processing can eat an EINTR
204 * caused by a signal (we can't take the break message there).
205 * This is hideously complex - *MUST* be simplified for 3.0 ! JRA.
208 if (oplock_message_waiting(&fds
)) {
209 DEBUG(10,("receive_message_or_smb: oplock_message is waiting.\n"));
210 async_processing(buffer
, buffer_len
);
212 * After async processing we must go and do the select again, as
213 * the state of the flag in fds for the server file descriptor is
214 * indeterminate - we may have done I/O on it in the oplock processing. JRA.
219 FD_SET(smbd_server_fd(),&fds
);
220 maxfd
= setup_oplock_select_set(&fds
);
222 to
.tv_sec
= timeout
/ 1000;
223 to
.tv_usec
= (timeout
% 1000) * 1000;
225 selrtn
= sys_select(MAX(maxfd
,smbd_server_fd())+1,&fds
,NULL
,NULL
,timeout
>0?&to
:NULL
);
227 /* if we get EINTR then maybe we have received an oplock
228 signal - treat this as select returning 1. This is ugly, but
229 is the best we can do until the oplock code knows more about
231 if (selrtn
== -1 && errno
== EINTR
) {
232 async_processing(buffer
, buffer_len
);
234 * After async processing we must go and do the select again, as
235 * the state of the flag in fds for the server file descriptor is
236 * indeterminate - we may have done I/O on it in the oplock processing. JRA.
243 /* something is wrong. Maybe the socket is dead? */
244 smb_read_error
= READ_ERROR
;
248 /* Did we timeout ? */
250 smb_read_error
= READ_TIMEOUT
;
255 * Ensure we process oplock break messages by preference.
256 * This is IMPORTANT ! Otherwise we can starve other processes
257 * sending us an oplock break message. JRA.
260 if (oplock_message_waiting(&fds
)) {
261 async_processing(buffer
, buffer_len
);
263 * After async processing we must go and do the select again, as
264 * the state of the flag in fds for the server file descriptor is
265 * indeterminate - we may have done I/O on it in the oplock processing. JRA.
270 return receive_smb(smbd_server_fd(), buffer
, 0);
273 /****************************************************************************
274 Get the next SMB packet, doing the local message processing automatically.
275 ****************************************************************************/
277 BOOL
receive_next_smb(char *inbuf
, int bufsize
, int timeout
)
283 ret
= receive_message_or_smb(inbuf
,bufsize
,timeout
);
285 got_keepalive
= (ret
&& (CVAL(inbuf
,0) == SMBkeepalive
));
286 } while (ret
&& got_keepalive
);
291 /****************************************************************************
292 We're terminating and have closed all our files/connections etc.
293 If there are any pending local messages we need to respond to them
294 before termination so that other smbds don't think we just died whilst
296 ****************************************************************************/
298 void respond_to_all_remaining_local_messages(void)
303 * Assert we have no exclusive open oplocks.
306 if(get_number_of_exclusive_open_oplocks()) {
307 DEBUG(0,("respond_to_all_remaining_local_messages: PANIC : we have %d exclusive oplocks.\n",
308 get_number_of_exclusive_open_oplocks() ));
313 * Keep doing receive_local_message with a 1 ms timeout until
314 * we have no more messages.
316 while(receive_local_message(buffer
, sizeof(buffer
), 1)) {
317 /* Deal with oplock break requests from other smbd's. */
318 process_local_message(buffer
, sizeof(buffer
));
326 These flags determine some of the permissions required to do an operation
328 Note that I don't set NEED_WRITE on some write operations because they
329 are used by some brain-dead clients when printing, and I don't want to
330 force write permissions on print services.
332 #define AS_USER (1<<0)
333 #define NEED_WRITE (1<<1)
334 #define TIME_INIT (1<<2)
335 #define CAN_IPC (1<<3)
336 #define AS_GUEST (1<<5)
337 #define QUEUE_IN_OPLOCK (1<<6)
340 define a list of possible SMB messages and their corresponding
341 functions. Any message that has a NULL function is unimplemented -
342 please feel free to contribute implementations!
344 const static struct smb_message_struct
347 int (*fn
)(connection_struct
*conn
, char *, char *, int, int);
350 smb_messages
[256] = {
352 /* 0x00 */ { "SMBmkdir",reply_mkdir
,AS_USER
| NEED_WRITE
},
353 /* 0x01 */ { "SMBrmdir",reply_rmdir
,AS_USER
| NEED_WRITE
},
354 /* 0x02 */ { "SMBopen",reply_open
,AS_USER
| QUEUE_IN_OPLOCK
},
355 /* 0x03 */ { "SMBcreate",reply_mknew
,AS_USER
},
356 /* 0x04 */ { "SMBclose",reply_close
,AS_USER
| CAN_IPC
},
357 /* 0x05 */ { "SMBflush",reply_flush
,AS_USER
},
358 /* 0x06 */ { "SMBunlink",reply_unlink
,AS_USER
| NEED_WRITE
| QUEUE_IN_OPLOCK
},
359 /* 0x07 */ { "SMBmv",reply_mv
,AS_USER
| NEED_WRITE
| QUEUE_IN_OPLOCK
},
360 /* 0x08 */ { "SMBgetatr",reply_getatr
,AS_USER
},
361 /* 0x09 */ { "SMBsetatr",reply_setatr
,AS_USER
| NEED_WRITE
},
362 /* 0x0a */ { "SMBread",reply_read
,AS_USER
},
363 /* 0x0b */ { "SMBwrite",reply_write
,AS_USER
| CAN_IPC
},
364 /* 0x0c */ { "SMBlock",reply_lock
,AS_USER
},
365 /* 0x0d */ { "SMBunlock",reply_unlock
,AS_USER
},
366 /* 0x0e */ { "SMBctemp",reply_ctemp
,AS_USER
| QUEUE_IN_OPLOCK
},
367 /* 0x0f */ { "SMBmknew",reply_mknew
,AS_USER
},
368 /* 0x10 */ { "SMBchkpth",reply_chkpth
,AS_USER
},
369 /* 0x11 */ { "SMBexit",reply_exit
,0},
370 /* 0x12 */ { "SMBlseek",reply_lseek
,AS_USER
},
371 /* 0x13 */ { "SMBlockread",reply_lockread
,AS_USER
},
372 /* 0x14 */ { "SMBwriteunlock",reply_writeunlock
,AS_USER
},
373 /* 0x15 */ { NULL
, NULL
, 0 },
374 /* 0x16 */ { NULL
, NULL
, 0 },
375 /* 0x17 */ { NULL
, NULL
, 0 },
376 /* 0x18 */ { NULL
, NULL
, 0 },
377 /* 0x19 */ { NULL
, NULL
, 0 },
378 /* 0x1a */ { "SMBreadbraw",reply_readbraw
,AS_USER
},
379 /* 0x1b */ { "SMBreadBmpx",reply_readbmpx
,AS_USER
},
380 /* 0x1c */ { "SMBreadBs",NULL
,0 },
381 /* 0x1d */ { "SMBwritebraw",reply_writebraw
,AS_USER
},
382 /* 0x1e */ { "SMBwriteBmpx",reply_writebmpx
,AS_USER
},
383 /* 0x1f */ { "SMBwriteBs",reply_writebs
,AS_USER
},
384 /* 0x20 */ { "SMBwritec",NULL
,0},
385 /* 0x21 */ { NULL
, NULL
, 0 },
386 /* 0x22 */ { "SMBsetattrE",reply_setattrE
,AS_USER
| NEED_WRITE
},
387 /* 0x23 */ { "SMBgetattrE",reply_getattrE
,AS_USER
},
388 /* 0x24 */ { "SMBlockingX",reply_lockingX
,AS_USER
},
389 /* 0x25 */ { "SMBtrans",reply_trans
,AS_USER
| CAN_IPC
},
390 /* 0x26 */ { "SMBtranss",NULL
,AS_USER
| CAN_IPC
},
391 /* 0x27 */ { "SMBioctl",reply_ioctl
,0},
392 /* 0x28 */ { "SMBioctls",NULL
,AS_USER
},
393 /* 0x29 */ { "SMBcopy",reply_copy
,AS_USER
| NEED_WRITE
| QUEUE_IN_OPLOCK
},
394 /* 0x2a */ { "SMBmove",NULL
,AS_USER
| NEED_WRITE
| QUEUE_IN_OPLOCK
},
395 /* 0x2b */ { "SMBecho",reply_echo
,0},
396 /* 0x2c */ { "SMBwriteclose",reply_writeclose
,AS_USER
},
397 /* 0x2d */ { "SMBopenX",reply_open_and_X
,AS_USER
| CAN_IPC
| QUEUE_IN_OPLOCK
},
398 /* 0x2e */ { "SMBreadX",reply_read_and_X
,AS_USER
| CAN_IPC
},
399 /* 0x2f */ { "SMBwriteX",reply_write_and_X
,AS_USER
| CAN_IPC
},
400 /* 0x30 */ { NULL
, NULL
, 0 },
401 /* 0x31 */ { NULL
, NULL
, 0 },
402 /* 0x32 */ { "SMBtrans2", reply_trans2
, AS_USER
| CAN_IPC
},
403 /* 0x33 */ { "SMBtranss2", reply_transs2
, AS_USER
},
404 /* 0x34 */ { "SMBfindclose", reply_findclose
,AS_USER
},
405 /* 0x35 */ { "SMBfindnclose", reply_findnclose
, AS_USER
},
406 /* 0x36 */ { NULL
, NULL
, 0 },
407 /* 0x37 */ { NULL
, NULL
, 0 },
408 /* 0x38 */ { NULL
, NULL
, 0 },
409 /* 0x39 */ { NULL
, NULL
, 0 },
410 /* 0x3a */ { NULL
, NULL
, 0 },
411 /* 0x3b */ { NULL
, NULL
, 0 },
412 /* 0x3c */ { NULL
, NULL
, 0 },
413 /* 0x3d */ { NULL
, NULL
, 0 },
414 /* 0x3e */ { NULL
, NULL
, 0 },
415 /* 0x3f */ { NULL
, NULL
, 0 },
416 /* 0x40 */ { NULL
, NULL
, 0 },
417 /* 0x41 */ { NULL
, NULL
, 0 },
418 /* 0x42 */ { NULL
, NULL
, 0 },
419 /* 0x43 */ { NULL
, NULL
, 0 },
420 /* 0x44 */ { NULL
, NULL
, 0 },
421 /* 0x45 */ { NULL
, NULL
, 0 },
422 /* 0x46 */ { NULL
, NULL
, 0 },
423 /* 0x47 */ { NULL
, NULL
, 0 },
424 /* 0x48 */ { NULL
, NULL
, 0 },
425 /* 0x49 */ { NULL
, NULL
, 0 },
426 /* 0x4a */ { NULL
, NULL
, 0 },
427 /* 0x4b */ { NULL
, NULL
, 0 },
428 /* 0x4c */ { NULL
, NULL
, 0 },
429 /* 0x4d */ { NULL
, NULL
, 0 },
430 /* 0x4e */ { NULL
, NULL
, 0 },
431 /* 0x4f */ { NULL
, NULL
, 0 },
432 /* 0x50 */ { NULL
, NULL
, 0 },
433 /* 0x51 */ { NULL
, NULL
, 0 },
434 /* 0x52 */ { NULL
, NULL
, 0 },
435 /* 0x53 */ { NULL
, NULL
, 0 },
436 /* 0x54 */ { NULL
, NULL
, 0 },
437 /* 0x55 */ { NULL
, NULL
, 0 },
438 /* 0x56 */ { NULL
, NULL
, 0 },
439 /* 0x57 */ { NULL
, NULL
, 0 },
440 /* 0x58 */ { NULL
, NULL
, 0 },
441 /* 0x59 */ { NULL
, NULL
, 0 },
442 /* 0x5a */ { NULL
, NULL
, 0 },
443 /* 0x5b */ { NULL
, NULL
, 0 },
444 /* 0x5c */ { NULL
, NULL
, 0 },
445 /* 0x5d */ { NULL
, NULL
, 0 },
446 /* 0x5e */ { NULL
, NULL
, 0 },
447 /* 0x5f */ { NULL
, NULL
, 0 },
448 /* 0x60 */ { NULL
, NULL
, 0 },
449 /* 0x61 */ { NULL
, NULL
, 0 },
450 /* 0x62 */ { NULL
, NULL
, 0 },
451 /* 0x63 */ { NULL
, NULL
, 0 },
452 /* 0x64 */ { NULL
, NULL
, 0 },
453 /* 0x65 */ { NULL
, NULL
, 0 },
454 /* 0x66 */ { NULL
, NULL
, 0 },
455 /* 0x67 */ { NULL
, NULL
, 0 },
456 /* 0x68 */ { NULL
, NULL
, 0 },
457 /* 0x69 */ { NULL
, NULL
, 0 },
458 /* 0x6a */ { NULL
, NULL
, 0 },
459 /* 0x6b */ { NULL
, NULL
, 0 },
460 /* 0x6c */ { NULL
, NULL
, 0 },
461 /* 0x6d */ { NULL
, NULL
, 0 },
462 /* 0x6e */ { NULL
, NULL
, 0 },
463 /* 0x6f */ { NULL
, NULL
, 0 },
464 /* 0x70 */ { "SMBtcon",reply_tcon
,0},
465 /* 0x71 */ { "SMBtdis",reply_tdis
,0},
466 /* 0x72 */ { "SMBnegprot",reply_negprot
,0},
467 /* 0x73 */ { "SMBsesssetupX",reply_sesssetup_and_X
,0},
468 /* 0x74 */ { "SMBulogoffX", reply_ulogoffX
, 0}, /* ulogoff doesn't give a valid TID */
469 /* 0x75 */ { "SMBtconX",reply_tcon_and_X
,0},
470 /* 0x76 */ { NULL
, NULL
, 0 },
471 /* 0x77 */ { NULL
, NULL
, 0 },
472 /* 0x78 */ { NULL
, NULL
, 0 },
473 /* 0x79 */ { NULL
, NULL
, 0 },
474 /* 0x7a */ { NULL
, NULL
, 0 },
475 /* 0x7b */ { NULL
, NULL
, 0 },
476 /* 0x7c */ { NULL
, NULL
, 0 },
477 /* 0x7d */ { NULL
, NULL
, 0 },
478 /* 0x7e */ { NULL
, NULL
, 0 },
479 /* 0x7f */ { NULL
, NULL
, 0 },
480 /* 0x80 */ { "SMBdskattr",reply_dskattr
,AS_USER
},
481 /* 0x81 */ { "SMBsearch",reply_search
,AS_USER
},
482 /* 0x82 */ { "SMBffirst",reply_search
,AS_USER
},
483 /* 0x83 */ { "SMBfunique",reply_search
,AS_USER
},
484 /* 0x84 */ { "SMBfclose",reply_fclose
,AS_USER
},
485 /* 0x85 */ { NULL
, NULL
, 0 },
486 /* 0x86 */ { NULL
, NULL
, 0 },
487 /* 0x87 */ { NULL
, NULL
, 0 },
488 /* 0x88 */ { NULL
, NULL
, 0 },
489 /* 0x89 */ { NULL
, NULL
, 0 },
490 /* 0x8a */ { NULL
, NULL
, 0 },
491 /* 0x8b */ { NULL
, NULL
, 0 },
492 /* 0x8c */ { NULL
, NULL
, 0 },
493 /* 0x8d */ { NULL
, NULL
, 0 },
494 /* 0x8e */ { NULL
, NULL
, 0 },
495 /* 0x8f */ { NULL
, NULL
, 0 },
496 /* 0x90 */ { NULL
, NULL
, 0 },
497 /* 0x91 */ { NULL
, NULL
, 0 },
498 /* 0x92 */ { NULL
, NULL
, 0 },
499 /* 0x93 */ { NULL
, NULL
, 0 },
500 /* 0x94 */ { NULL
, NULL
, 0 },
501 /* 0x95 */ { NULL
, NULL
, 0 },
502 /* 0x96 */ { NULL
, NULL
, 0 },
503 /* 0x97 */ { NULL
, NULL
, 0 },
504 /* 0x98 */ { NULL
, NULL
, 0 },
505 /* 0x99 */ { NULL
, NULL
, 0 },
506 /* 0x9a */ { NULL
, NULL
, 0 },
507 /* 0x9b */ { NULL
, NULL
, 0 },
508 /* 0x9c */ { NULL
, NULL
, 0 },
509 /* 0x9d */ { NULL
, NULL
, 0 },
510 /* 0x9e */ { NULL
, NULL
, 0 },
511 /* 0x9f */ { NULL
, NULL
, 0 },
512 /* 0xa0 */ { "SMBnttrans", reply_nttrans
, AS_USER
| CAN_IPC
| QUEUE_IN_OPLOCK
},
513 /* 0xa1 */ { "SMBnttranss", reply_nttranss
, AS_USER
| CAN_IPC
},
514 /* 0xa2 */ { "SMBntcreateX", reply_ntcreate_and_X
, AS_USER
| CAN_IPC
| QUEUE_IN_OPLOCK
},
515 /* 0xa3 */ { NULL
, NULL
, 0 },
516 /* 0xa4 */ { "SMBntcancel", reply_ntcancel
, 0 },
517 /* 0xa5 */ { NULL
, NULL
, 0 },
518 /* 0xa6 */ { NULL
, NULL
, 0 },
519 /* 0xa7 */ { NULL
, NULL
, 0 },
520 /* 0xa8 */ { NULL
, NULL
, 0 },
521 /* 0xa9 */ { NULL
, NULL
, 0 },
522 /* 0xaa */ { NULL
, NULL
, 0 },
523 /* 0xab */ { NULL
, NULL
, 0 },
524 /* 0xac */ { NULL
, NULL
, 0 },
525 /* 0xad */ { NULL
, NULL
, 0 },
526 /* 0xae */ { NULL
, NULL
, 0 },
527 /* 0xaf */ { NULL
, NULL
, 0 },
528 /* 0xb0 */ { NULL
, NULL
, 0 },
529 /* 0xb1 */ { NULL
, NULL
, 0 },
530 /* 0xb2 */ { NULL
, NULL
, 0 },
531 /* 0xb3 */ { NULL
, NULL
, 0 },
532 /* 0xb4 */ { NULL
, NULL
, 0 },
533 /* 0xb5 */ { NULL
, NULL
, 0 },
534 /* 0xb6 */ { NULL
, NULL
, 0 },
535 /* 0xb7 */ { NULL
, NULL
, 0 },
536 /* 0xb8 */ { NULL
, NULL
, 0 },
537 /* 0xb9 */ { NULL
, NULL
, 0 },
538 /* 0xba */ { NULL
, NULL
, 0 },
539 /* 0xbb */ { NULL
, NULL
, 0 },
540 /* 0xbc */ { NULL
, NULL
, 0 },
541 /* 0xbd */ { NULL
, NULL
, 0 },
542 /* 0xbe */ { NULL
, NULL
, 0 },
543 /* 0xbf */ { NULL
, NULL
, 0 },
544 /* 0xc0 */ { "SMBsplopen",reply_printopen
,AS_USER
| QUEUE_IN_OPLOCK
},
545 /* 0xc1 */ { "SMBsplwr",reply_printwrite
,AS_USER
},
546 /* 0xc2 */ { "SMBsplclose",reply_printclose
,AS_USER
},
547 /* 0xc3 */ { "SMBsplretq",reply_printqueue
,AS_USER
},
548 /* 0xc4 */ { NULL
, NULL
, 0 },
549 /* 0xc5 */ { NULL
, NULL
, 0 },
550 /* 0xc6 */ { NULL
, NULL
, 0 },
551 /* 0xc7 */ { NULL
, NULL
, 0 },
552 /* 0xc8 */ { NULL
, NULL
, 0 },
553 /* 0xc9 */ { NULL
, NULL
, 0 },
554 /* 0xca */ { NULL
, NULL
, 0 },
555 /* 0xcb */ { NULL
, NULL
, 0 },
556 /* 0xcc */ { NULL
, NULL
, 0 },
557 /* 0xcd */ { NULL
, NULL
, 0 },
558 /* 0xce */ { NULL
, NULL
, 0 },
559 /* 0xcf */ { NULL
, NULL
, 0 },
560 /* 0xd0 */ { "SMBsends",reply_sends
,AS_GUEST
},
561 /* 0xd1 */ { "SMBsendb",NULL
,AS_GUEST
},
562 /* 0xd2 */ { "SMBfwdname",NULL
,AS_GUEST
},
563 /* 0xd3 */ { "SMBcancelf",NULL
,AS_GUEST
},
564 /* 0xd4 */ { "SMBgetmac",NULL
,AS_GUEST
},
565 /* 0xd5 */ { "SMBsendstrt",reply_sendstrt
,AS_GUEST
},
566 /* 0xd6 */ { "SMBsendend",reply_sendend
,AS_GUEST
},
567 /* 0xd7 */ { "SMBsendtxt",reply_sendtxt
,AS_GUEST
},
568 /* 0xd8 */ { NULL
, NULL
, 0 },
569 /* 0xd9 */ { NULL
, NULL
, 0 },
570 /* 0xda */ { NULL
, NULL
, 0 },
571 /* 0xdb */ { NULL
, NULL
, 0 },
572 /* 0xdc */ { NULL
, NULL
, 0 },
573 /* 0xdd */ { NULL
, NULL
, 0 },
574 /* 0xde */ { NULL
, NULL
, 0 },
575 /* 0xdf */ { NULL
, NULL
, 0 },
576 /* 0xe0 */ { NULL
, NULL
, 0 },
577 /* 0xe1 */ { NULL
, NULL
, 0 },
578 /* 0xe2 */ { NULL
, NULL
, 0 },
579 /* 0xe3 */ { NULL
, NULL
, 0 },
580 /* 0xe4 */ { NULL
, NULL
, 0 },
581 /* 0xe5 */ { NULL
, NULL
, 0 },
582 /* 0xe6 */ { NULL
, NULL
, 0 },
583 /* 0xe7 */ { NULL
, NULL
, 0 },
584 /* 0xe8 */ { NULL
, NULL
, 0 },
585 /* 0xe9 */ { NULL
, NULL
, 0 },
586 /* 0xea */ { NULL
, NULL
, 0 },
587 /* 0xeb */ { NULL
, NULL
, 0 },
588 /* 0xec */ { NULL
, NULL
, 0 },
589 /* 0xed */ { NULL
, NULL
, 0 },
590 /* 0xee */ { NULL
, NULL
, 0 },
591 /* 0xef */ { NULL
, NULL
, 0 },
592 /* 0xf0 */ { NULL
, NULL
, 0 },
593 /* 0xf1 */ { NULL
, NULL
, 0 },
594 /* 0xf2 */ { NULL
, NULL
, 0 },
595 /* 0xf3 */ { NULL
, NULL
, 0 },
596 /* 0xf4 */ { NULL
, NULL
, 0 },
597 /* 0xf5 */ { NULL
, NULL
, 0 },
598 /* 0xf6 */ { NULL
, NULL
, 0 },
599 /* 0xf7 */ { NULL
, NULL
, 0 },
600 /* 0xf8 */ { NULL
, NULL
, 0 },
601 /* 0xf9 */ { NULL
, NULL
, 0 },
602 /* 0xfa */ { NULL
, NULL
, 0 },
603 /* 0xfb */ { NULL
, NULL
, 0 },
604 /* 0xfc */ { NULL
, NULL
, 0 },
605 /* 0xfd */ { NULL
, NULL
, 0 },
606 /* 0xfe */ { NULL
, NULL
, 0 },
607 /* 0xff */ { NULL
, NULL
, 0 }
611 /*******************************************************************
613 ********************************************************************/
614 static void smb_dump(const char *name
, int type
, char *data
, ssize_t len
)
618 if (DEBUGLEVEL
< 50) return;
620 if (len
< 4) len
= smb_len(data
)+4;
621 for (i
=1;i
<100;i
++) {
622 slprintf(fname
,sizeof(fname
)-1, "/tmp/%s.%d.%s", name
, i
,
623 type
? "req" : "resp");
624 fd
= open(fname
, O_WRONLY
|O_CREAT
|O_EXCL
, 0644);
625 if (fd
!= -1 || errno
!= EEXIST
) break;
628 ssize_t ret
= write(fd
, data
, len
);
630 DEBUG(0,("smb_dump: problem: write returned %d\n", (int)ret
));
632 DEBUG(0,("created %s len %d\n", fname
, len
));
637 /****************************************************************************
638 do a switch on the message type, and return the response size
639 ****************************************************************************/
640 static int switch_message(int type
,char *inbuf
,char *outbuf
,int size
,int bufsize
)
642 static pid_t pid
= (pid_t
)-1;
644 extern uint16 global_smbpid
;
648 if (pid
== (pid_t
)-1)
654 /* make sure this is an SMB packet */
655 if (strncmp(smb_base(inbuf
),"\377SMB",4) != 0)
657 DEBUG(2,("Non-SMB packet of length %d\n",smb_len(inbuf
)));
661 /* yuck! this is an interim measure before we get rid of our
662 current inbuf/outbuf system */
663 global_smbpid
= SVAL(inbuf
,smb_pid
);
665 if (smb_messages
[type
].fn
== NULL
)
667 DEBUG(0,("Unknown message type %d!\n",type
));
668 smb_dump("Unknown", 1, inbuf
, size
);
669 outsize
= reply_unknown(inbuf
,outbuf
);
673 int flags
= smb_messages
[type
].flags
;
674 static uint16 last_session_tag
= UID_FIELD_INVALID
;
675 /* In share mode security we must ignore the vuid. */
676 uint16 session_tag
= (lp_security() == SEC_SHARE
) ? UID_FIELD_INVALID
: SVAL(inbuf
,smb_uid
);
677 connection_struct
*conn
= conn_find(SVAL(inbuf
,smb_tid
));
679 DEBUG(3,("switch message %s (pid %d)\n",smb_fn_name(type
),(int)pid
));
681 smb_dump(smb_fn_name(type
), 1, inbuf
, size
);
682 if(global_oplock_break
)
684 if(flags
& QUEUE_IN_OPLOCK
)
687 * Queue this message as we are the process of an oplock break.
690 DEBUG( 2, ( "switch_message: queueing message due to being in " ) );
691 DEBUGADD( 2, ( "oplock break state.\n" ) );
693 push_oplock_pending_smb_message( inbuf
, size
);
698 /* Ensure this value is replaced in the incoming packet. */
699 SSVAL(inbuf
,smb_uid
,session_tag
);
702 * Ensure the correct username is in current_user_info.
703 * This is a really ugly bugfix for problems with
704 * multiple session_setup_and_X's being done and
705 * allowing %U and %G substitutions to work correctly.
706 * There is a reason this code is done here, don't
707 * move it unless you know what you're doing... :-).
711 if (session_tag
!= last_session_tag
) {
712 user_struct
*vuser
= NULL
;
714 last_session_tag
= session_tag
;
715 if(session_tag
!= UID_FIELD_INVALID
)
716 vuser
= get_valid_user_struct(session_tag
);
718 current_user_info
= vuser
->user
;
721 /* does this protocol need to be run as root? */
722 if (!(flags
& AS_USER
))
723 change_to_root_user();
725 /* does this protocol need a valid tree connection? */
726 if ((flags
& AS_USER
) && !conn
) {
727 return ERROR_DOS(ERRSRV
, ERRinvnid
);
731 /* does this protocol need to be run as the connected user? */
732 if ((flags
& AS_USER
) && !change_to_user(conn
,session_tag
)) {
733 if (flags
& AS_GUEST
)
736 return(ERROR_DOS(ERRSRV
,ERRaccess
));
739 /* this code is to work around a bug is MS client 3 without
740 introducing a security hole - it needs to be able to do
741 print queue checks as guest if it isn't logged in properly */
745 /* does it need write permission? */
746 if ((flags
& NEED_WRITE
) && !CAN_WRITE(conn
))
747 return(ERROR_DOS(ERRSRV
,ERRaccess
));
749 /* ipc services are limited */
750 if (IS_IPC(conn
) && (flags
& AS_USER
) && !(flags
& CAN_IPC
)) {
751 return(ERROR_DOS(ERRSRV
,ERRaccess
));
754 /* load service specific parameters */
755 if (conn
&& !set_current_service(conn
,(flags
& AS_USER
)?True
:False
)) {
756 return(ERROR_DOS(ERRSRV
,ERRaccess
));
759 /* does this protocol need to be run as guest? */
760 if ((flags
& AS_GUEST
) &&
761 (!change_to_guest() ||
762 !check_access(smbd_server_fd(), lp_hostsallow(-1), lp_hostsdeny(-1)))) {
763 return(ERROR_DOS(ERRSRV
,ERRaccess
));
768 outsize
= smb_messages
[type
].fn(conn
, inbuf
,outbuf
,size
,bufsize
);
771 smb_dump(smb_fn_name(type
), 0, outbuf
, outsize
);
777 /****************************************************************************
778 construct a reply to the incoming packet
779 ****************************************************************************/
780 static int construct_reply(char *inbuf
,char *outbuf
,int size
,int bufsize
)
782 int type
= CVAL(inbuf
,smb_com
);
784 int msg_type
= CVAL(inbuf
,0);
786 GetTimeOfDay(&smb_last_time
);
793 return(reply_special(inbuf
,outbuf
));
795 construct_reply_common(inbuf
, outbuf
);
797 outsize
= switch_message(type
,inbuf
,outbuf
,size
,bufsize
);
799 outsize
+= chain_size
;
802 smb_setlen(outbuf
,outsize
- 4);
806 /****************************************************************************
807 Keep track of the number of running smbd's. This functionality is used to
808 'hard' limit Samba overhead on resource constrained systems.
809 ****************************************************************************/
810 static BOOL
smbd_process_limit(void)
814 if (lp_max_smbd_processes()) {
816 /* Always add one to the smbd process count, as exit_server() always
820 total_smbds
= 1; /* In case we need to create the entry. */
822 if (!conn_tdb_ctx()) {
823 DEBUG(0,("smbd_process_limit: max smbd processes parameter set with status parameter not \
824 set. Ignoring max smbd restriction.\n"));
828 if (tdb_change_int32_atomic(conn_tdb_ctx(), "INFO/total_smbds", &total_smbds
, 1) == -1)
831 return total_smbds
> lp_max_smbd_processes();
837 /****************************************************************************
838 process an smb from the client - split out from the smbd_process() code so
839 it can be used by the oplock break code.
840 ****************************************************************************/
841 void process_smb(char *inbuf
, char *outbuf
)
843 static int trans_num
;
844 int msg_type
= CVAL(inbuf
,0);
845 int32 len
= smb_len(inbuf
);
848 DO_PROFILE_INC(smb_count
);
850 if (trans_num
== 0) {
851 /* on the first packet, check the global hosts allow/ hosts
852 deny parameters before doing any parsing of the packet
853 passed to us by the client. This prevents attacks on our
854 parsing code from hosts not in the hosts allow list */
855 if (smbd_process_limit() ||
856 !check_access(smbd_server_fd(), lp_hostsallow(-1), lp_hostsdeny(-1))) {
857 /* send a negative session response "not listening on calling
859 static unsigned char buf
[5] = {0x83, 0, 0, 1, 0x81};
860 DEBUG( 1, ( "Connection denied from %s\n",
862 (void)send_smb(smbd_server_fd(),(char *)buf
);
863 exit_server("connection denied");
867 DEBUG( 6, ( "got message type 0x%x of len 0x%x\n", msg_type
, len
) );
868 DEBUG( 3, ( "Transaction %d of length %d\n", trans_num
, nread
) );
872 else if(msg_type
== SMBkeepalive
)
873 return; /* Keepalive packet. */
875 nread
= construct_reply(inbuf
,outbuf
,nread
,max_send
);
879 if (CVAL(outbuf
,0) == 0)
882 if (nread
!= smb_len(outbuf
) + 4)
884 DEBUG(0,("ERROR: Invalid message response size! %d %d\n",
885 nread
, smb_len(outbuf
)));
888 if (!send_smb(smbd_server_fd(),outbuf
))
889 exit_server("process_smb: send_smb failed.");
896 /****************************************************************************
897 return a string containing the function name of a SMB command
898 ****************************************************************************/
899 const char *smb_fn_name(int type
)
901 static char *unknown_name
= "SMBunknown";
903 if (smb_messages
[type
].name
== NULL
)
904 return(unknown_name
);
906 return(smb_messages
[type
].name
);
910 /****************************************************************************
911 Helper function for contruct_reply.
912 ****************************************************************************/
914 void construct_reply_common(char *inbuf
,char *outbuf
)
916 memset(outbuf
,'\0',smb_size
);
918 set_message(outbuf
,0,0,True
);
919 SCVAL(outbuf
,smb_com
,CVAL(inbuf
,smb_com
));
921 memcpy(outbuf
+4,inbuf
+4,4);
922 SCVAL(outbuf
,smb_rcls
,SMB_SUCCESS
);
923 SCVAL(outbuf
,smb_reh
,0);
924 SCVAL(outbuf
,smb_flg
, FLAG_REPLY
| (CVAL(inbuf
,smb_flg
) & FLAG_CASELESS_PATHNAMES
));
925 SSVAL(outbuf
,smb_flg2
,
926 (SVAL(inbuf
,smb_flg2
) & FLAGS2_UNICODE_STRINGS
) |
927 FLAGS2_LONG_PATH_COMPONENTS
|
928 FLAGS2_32_BIT_ERROR_CODES
| FLAGS2_EXTENDED_SECURITY
);
930 SSVAL(outbuf
,smb_err
,SMB_SUCCESS
);
931 SSVAL(outbuf
,smb_tid
,SVAL(inbuf
,smb_tid
));
932 SSVAL(outbuf
,smb_pid
,SVAL(inbuf
,smb_pid
));
933 SSVAL(outbuf
,smb_uid
,SVAL(inbuf
,smb_uid
));
934 SSVAL(outbuf
,smb_mid
,SVAL(inbuf
,smb_mid
));
937 /****************************************************************************
938 construct a chained reply and add it to the already made reply
939 **************************************************************************/
940 int chain_reply(char *inbuf
,char *outbuf
,int size
,int bufsize
)
942 static char *orig_inbuf
;
943 static char *orig_outbuf
;
944 int smb_com1
, smb_com2
= CVAL(inbuf
,smb_vwv0
);
945 unsigned smb_off2
= SVAL(inbuf
,smb_vwv1
);
946 char *inbuf2
, *outbuf2
;
948 char inbuf_saved
[smb_wct
];
949 char outbuf_saved
[smb_wct
];
950 int wct
= CVAL(outbuf
,smb_wct
);
951 int outsize
= smb_size
+ 2*wct
+ SVAL(outbuf
,smb_vwv0
+2*wct
);
953 /* maybe its not chained */
954 if (smb_com2
== 0xFF) {
955 SCVAL(outbuf
,smb_vwv0
,0xFF);
959 if (chain_size
== 0) {
960 /* this is the first part of the chain */
962 orig_outbuf
= outbuf
;
966 * The original Win95 redirector dies on a reply to
967 * a lockingX and read chain unless the chain reply is
968 * 4 byte aligned. JRA.
971 outsize
= (outsize
+ 3) & ~3;
973 /* we need to tell the client where the next part of the reply will be */
974 SSVAL(outbuf
,smb_vwv1
,smb_offset(outbuf
+outsize
,outbuf
));
975 SCVAL(outbuf
,smb_vwv0
,smb_com2
);
977 /* remember how much the caller added to the chain, only counting stuff
978 after the parameter words */
979 chain_size
+= outsize
- smb_wct
;
981 /* work out pointers into the original packets. The
982 headers on these need to be filled in */
983 inbuf2
= orig_inbuf
+ smb_off2
+ 4 - smb_wct
;
984 outbuf2
= orig_outbuf
+ SVAL(outbuf
,smb_vwv1
) + 4 - smb_wct
;
986 /* remember the original command type */
987 smb_com1
= CVAL(orig_inbuf
,smb_com
);
989 /* save the data which will be overwritten by the new headers */
990 memcpy(inbuf_saved
,inbuf2
,smb_wct
);
991 memcpy(outbuf_saved
,outbuf2
,smb_wct
);
993 /* give the new packet the same header as the last part of the SMB */
994 memmove(inbuf2
,inbuf
,smb_wct
);
996 /* create the in buffer */
997 SCVAL(inbuf2
,smb_com
,smb_com2
);
999 /* create the out buffer */
1000 construct_reply_common(inbuf2
, outbuf2
);
1002 DEBUG(3,("Chained message\n"));
1005 /* process the request */
1006 outsize2
= switch_message(smb_com2
,inbuf2
,outbuf2
,size
-chain_size
,
1007 bufsize
-chain_size
);
1009 /* copy the new reply and request headers over the old ones, but
1010 preserve the smb_com field */
1011 memmove(orig_outbuf
,outbuf2
,smb_wct
);
1012 SCVAL(orig_outbuf
,smb_com
,smb_com1
);
1014 /* restore the saved data, being careful not to overwrite any
1015 data from the reply header */
1016 memcpy(inbuf2
,inbuf_saved
,smb_wct
);
1018 int ofs
= smb_wct
- PTR_DIFF(outbuf2
,orig_outbuf
);
1019 if (ofs
< 0) ofs
= 0;
1020 memmove(outbuf2
+ofs
,outbuf_saved
+ofs
,smb_wct
-ofs
);
1026 /****************************************************************************
1027 Setup the needed select timeout.
1028 ****************************************************************************/
1030 static int setup_select_timeout(void)
1036 * Increase the select timeout back to SMBD_SELECT_TIMEOUT if we
1037 * have removed any blocking locks. JRA.
1040 select_timeout
= blocking_locks_pending() ? SMBD_SELECT_TIMEOUT_WITH_PENDING_LOCKS
*1000 :
1041 SMBD_SELECT_TIMEOUT
*1000;
1043 t
= change_notify_timeout();
1044 if (t
!= -1) select_timeout
= MIN(select_timeout
, t
*1000);
1046 return select_timeout
;
1049 /****************************************************************************
1050 Check if services need reloading.
1051 ****************************************************************************/
1053 void check_reload(int t
)
1055 static time_t last_smb_conf_reload_time
= 0;
1057 if(last_smb_conf_reload_time
== 0)
1058 last_smb_conf_reload_time
= t
;
1060 if (reload_after_sighup
|| (t
>= last_smb_conf_reload_time
+SMBD_RELOAD_CHECK
))
1062 reload_services(True
);
1063 reload_after_sighup
= False
;
1064 last_smb_conf_reload_time
= t
;
1068 /****************************************************************************
1069 Process any timeout housekeeping. Return False if the caller should exit.
1070 ****************************************************************************/
1072 static BOOL
timeout_processing(int deadtime
, int *select_timeout
, time_t *last_timeout_processing_time
)
1074 static time_t last_keepalive_sent_time
= 0;
1075 static time_t last_idle_closed_check
= 0;
1077 BOOL allidle
= True
;
1078 extern int keepalive
;
1080 if (smb_read_error
== READ_EOF
)
1082 DEBUG(3,("end of file from client\n"));
1086 if (smb_read_error
== READ_ERROR
)
1088 DEBUG(3,("receive_smb error (%s) exiting\n",
1093 *last_timeout_processing_time
= t
= time(NULL
);
1095 if(last_keepalive_sent_time
== 0)
1096 last_keepalive_sent_time
= t
;
1098 if(last_idle_closed_check
== 0)
1099 last_idle_closed_check
= t
;
1101 /* become root again if waiting */
1102 change_to_root_user();
1104 /* check if we need to reload services */
1107 /* automatic timeout if all connections are closed */
1108 if (conn_num_open()==0 && (t
- last_idle_closed_check
) >= IDLE_CLOSED_TIMEOUT
)
1110 DEBUG( 2, ( "Closing idle connection\n" ) );
1114 last_idle_closed_check
= t
;
1116 if (keepalive
&& (t
- last_keepalive_sent_time
)>keepalive
)
1118 extern struct auth_context
*negprot_global_auth_context
;
1119 if (!send_keepalive(smbd_server_fd())) {
1120 DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
1124 /* send a keepalive for a password server or the like.
1125 This is attached to the auth_info created in the
1127 if (negprot_global_auth_context
1128 && negprot_global_auth_context
->challenge_set_method
1129 && negprot_global_auth_context
->challenge_set_method
->send_keepalive
) {
1130 negprot_global_auth_context
->challenge_set_method
->send_keepalive
1131 (&negprot_global_auth_context
->challenge_set_method
->private_data
);
1134 last_keepalive_sent_time
= t
;
1137 /* check for connection timeouts */
1138 allidle
= conn_idle_all(t
, deadtime
);
1140 if (allidle
&& conn_num_open()>0) {
1141 DEBUG(2,("Closing idle connection 2.\n"));
1145 if(global_machine_password_needs_changing
&&
1146 /* for ADS we need to do a regular ADS password change, not a domain
1148 lp_security() == SEC_DOMAIN
)
1150 unsigned char trust_passwd_hash
[16];
1152 pstring remote_machine_list
;
1155 * We're in domain level security, and the code that
1156 * read the machine password flagged that the machine
1157 * password needs changing.
1161 * First, open the machine password file with an exclusive lock.
1164 if(!secrets_fetch_trust_account_password(global_myworkgroup
, trust_passwd_hash
, &lct
)) {
1165 DEBUG(0,("process: unable to read the machine account password for \
1166 machine %s in domain %s.\n", global_myname
, global_myworkgroup
));
1171 * Make sure someone else hasn't already done this.
1174 if(t
< lct
+ lp_machine_password_timeout()) {
1175 global_machine_password_needs_changing
= False
;
1179 pstrcpy(remote_machine_list
, lp_passwordserver());
1181 change_trust_account_password( global_myworkgroup
, remote_machine_list
);
1182 global_machine_password_needs_changing
= False
;
1186 * Check to see if we have any blocking locks
1187 * outstanding on the queue.
1189 process_blocking_lock_queue(t
);
1192 * Check to see if we have any change notifies
1193 * outstanding on the queue.
1195 process_pending_change_notify_queue(t
);
1198 * Now we are root, check if the log files need pruning.
1199 * Force a log file check.
1201 force_check_log_size();
1205 * Modify the select timeout depending upon
1206 * what we have remaining in our queues.
1209 *select_timeout
= setup_select_timeout();
1214 /****************************************************************************
1215 process commands from the client
1216 ****************************************************************************/
1218 void smbd_process(void)
1220 extern int smb_echo_count
;
1221 time_t last_timeout_processing_time
= time(NULL
);
1222 unsigned int num_smbs
= 0;
1224 InBuffer
= (char *)malloc(BUFFER_SIZE
+ LARGE_WRITEX_HDR_SIZE
+ SAFETY_MARGIN
);
1225 OutBuffer
= (char *)malloc(BUFFER_SIZE
+ LARGE_WRITEX_HDR_SIZE
+ SAFETY_MARGIN
);
1226 if ((InBuffer
== NULL
) || (OutBuffer
== NULL
))
1229 max_recv
= MIN(lp_maxxmit(),BUFFER_SIZE
);
1232 int deadtime
= lp_deadtime()*60;
1233 int select_timeout
= setup_select_timeout();
1237 deadtime
= DEFAULT_SMBD_TIMEOUT
;
1241 /* free up temporary memory */
1243 main_loop_talloc_free();
1245 while (!receive_message_or_smb(InBuffer
,BUFFER_SIZE
+LARGE_WRITEX_HDR_SIZE
,select_timeout
)) {
1246 if(!timeout_processing( deadtime
, &select_timeout
, &last_timeout_processing_time
))
1248 num_smbs
= 0; /* Reset smb counter. */
1252 * Ensure we do timeout processing if the SMB we just got was
1253 * only an echo request. This allows us to set the select
1254 * timeout in 'receive_message_or_smb()' to any value we like
1255 * without worrying that the client will send echo requests
1256 * faster than the select timeout, thus starving out the
1257 * essential processing (change notify, blocking locks) that
1258 * the timeout code does. JRA.
1260 num_echos
= smb_echo_count
;
1262 process_smb(InBuffer
, OutBuffer
);
1264 if (smb_echo_count
!= num_echos
) {
1265 if(!timeout_processing( deadtime
, &select_timeout
, &last_timeout_processing_time
))
1267 num_smbs
= 0; /* Reset smb counter. */
1273 * If we are getting smb requests in a constant stream
1274 * with no echos, make sure we attempt timeout processing
1275 * every select_timeout milliseconds - but only check for this
1276 * every 200 smb requests.
1279 if ((num_smbs
% 200) == 0) {
1280 time_t new_check_time
= time(NULL
);
1281 if(new_check_time
- last_timeout_processing_time
>= (select_timeout
/1000)) {
1282 if(!timeout_processing( deadtime
, &select_timeout
, &last_timeout_processing_time
))
1284 num_smbs
= 0; /* Reset smb counter. */
1285 last_timeout_processing_time
= new_check_time
; /* Reset time. */