summaryrefslogtreecommitdiff
path: root/source3/modules/onefs_open.c
blob: dd4eb90b13ae48402e51dd42087765e794cfae09 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
/*
 * Unix SMB/CIFS implementation.
 *
 * This file began with some code from source3/smbd/open.c and has been
 * modified it work with ifs_createfile.
 *
 * ifs_createfile is a CIFS-specific syscall for opening/files and
 * directories.  It adds support for:
 *    - Full in-kernel access checks using a windows access_mask
 *    - Cluster-coherent share mode locks
 *    - Cluster-coherent oplocks
 *    - Streams
 *    - Setting security descriptors at create time
 *    - Setting dos_attributes at create time
 *
 * Copyright (C) Andrew Tridgell 1992-1998
 * Copyright (C) Jeremy Allison 2001-2004
 * Copyright (C) Volker Lendecke 2005
 * Copyright (C) Tim Prouty, 2008
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#include "includes.h"
#include "smbd/smbd.h"
#include "onefs.h"
#include "onefs_config.h"
#include "oplock_onefs.h"
#include "smbd/globals.h"

extern const struct generic_mapping file_generic_mapping;

struct onefs_fsp_data {
	uint64_t oplock_callback_id;
};

static NTSTATUS onefs_create_file_unixpath(connection_struct *conn,
			      struct smb_request *req,
			      struct smb_filename *smb_fname,
			      uint32_t access_mask,
			      uint32_t share_access,
			      uint32_t create_disposition,
			      uint32_t create_options,
			      uint32_t file_attributes,
			      uint32_t oplock_request,
			      uint64_t allocation_size,
			      uint32_t private_flags,
			      struct security_descriptor *sd,
			      struct ea_list *ea_list,
			      files_struct **result,
			      int *pinfo,
			      struct onefs_fsp_data *fsp_data);

/****************************************************************************
 Open a file.
****************************************************************************/

static NTSTATUS onefs_open_file(files_struct *fsp,
				connection_struct *conn,
				struct smb_request *req,
				const char *parent_dir,
				struct smb_filename *smb_fname,
				int flags,
				mode_t unx_mode,
				uint32 access_mask,
				uint32 open_access_mask,
				int oplock_request,
				uint64 id,
				uint32 share_access,
				uint32 create_options,
				uint32_t new_dos_attributes,
				struct security_descriptor *sd,
				int *granted_oplock)
{
	struct smb_filename *smb_fname_onefs = NULL;
	NTSTATUS status = NT_STATUS_OK;
	int accmode = (flags & O_ACCMODE);
	int local_flags = flags;
	bool file_existed = VALID_STAT(smb_fname->st);
	const char *wild;
	int base_fd = -1;

	fsp->fh->fd = -1;
	errno = EPERM;

	/* Check permissions */

	/*
	 * This code was changed after seeing a client open request
	 * containing the open mode of (DENY_WRITE/read-only) with
	 * the 'create if not exist' bit set. The previous code
	 * would fail to open the file read only on a read-only share
	 * as it was checking the flags parameter  directly against O_RDONLY,
	 * this was failing as the flags parameter was set to O_RDONLY|O_CREAT.
	 * JRA.
	 */

	if (!CAN_WRITE(conn)) {
		/* It's a read-only share - fail if we wanted to write. */
		if(accmode != O_RDONLY) {
			DEBUG(3, ("Permission denied opening %s\n",
				  smb_fname_str_dbg(smb_fname)));
			return NT_STATUS_ACCESS_DENIED;
		} else if(flags & O_CREAT) {
			/* We don't want to write - but we must make sure that
			   O_CREAT doesn't create the file if we have write
			   access into the directory.
			*/
			flags &= ~O_CREAT;
			local_flags &= ~O_CREAT;
		}
	}

	/*
	 * This little piece of insanity is inspired by the
	 * fact that an NT client can open a file for O_RDONLY,
	 * but set the create disposition to FILE_EXISTS_TRUNCATE.
	 * If the client *can* write to the file, then it expects to
	 * truncate the file, even though it is opening for readonly.
	 * Quicken uses this stupid trick in backup file creation...
	 * Thanks *greatly* to "David W. Chapman Jr." <dwcjr@inethouston.net>
	 * for helping track this one down. It didn't bite us in 2.0.x
	 * as we always opened files read-write in that release. JRA.
	 */

	if ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC)) {
		DEBUG(10,("onefs_open_file: truncate requested on read-only "
			  "open for file %s\n", smb_fname_str_dbg(smb_fname)));
		local_flags = (flags & ~O_ACCMODE)|O_RDWR;
	}

#if defined(O_NONBLOCK) && defined(S_ISFIFO)
	/*
	 * We would block on opening a FIFO with no one else on the
	 * other end. Do what we used to do and add O_NONBLOCK to the
	 * open flags. JRA.
	 */

	if (file_existed && S_ISFIFO(smb_fname->st.st_ex_mode)) {
		local_flags |= O_NONBLOCK;
	}
#endif

	/* Don't create files with Microsoft wildcard characters. */
	if (fsp->base_fsp) {
		/*
		 * wildcard characters are allowed in stream names
		 * only test the basefilename
		 */
		wild = fsp->base_fsp->fsp_name->base_name;
	} else {
		wild = smb_fname->base_name;
	}
	if ((local_flags & O_CREAT) && !file_existed &&
	    ms_has_wild(wild))  {
		/*
		 * XXX: may need to remvoe this return...
		 *
		 * We dont think this check needs to exist. All it does is
		 * block creating files with Microsoft wildcards, which is
		 * fine if the creation originated from NFS or locally and
		 * then was copied via Samba.
		 */
		DEBUG(1, ("onefs_open_file: creating file with wildcard: %s\n",
			  smb_fname_str_dbg(smb_fname)));
		return NT_STATUS_OBJECT_NAME_INVALID;
	}

	/* Actually do the open */

#ifdef O_NOFOLLOW
	/*
	 * Never follow symlinks on a POSIX client. The
	 * client should be doing this.
	 */

	if (fsp->posix_open || !lp_symlinks(SNUM(conn))) {
		flags |= O_NOFOLLOW;
	}
#endif
	/* Setup a onefs-style smb_fname struct. */
	status = onefs_stream_prep_smb_fname(talloc_tos(), smb_fname,
					     &smb_fname_onefs);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}

	/* If it's a stream pass in the base_fd */
	if ((conn->fs_capabilities & FILE_NAMED_STREAMS) &&
	    is_ntfs_stream_smb_fname(smb_fname_onefs)) {
		SMB_ASSERT(fsp->base_fsp);

		DEBUG(10, ("Opening a stream: base=%s(%d), stream=%s\n",
			   smb_fname_onefs->base_name, fsp->base_fsp->fh->fd,
			   smb_fname_onefs->stream_name));

		base_fd = fsp->base_fsp->fh->fd;
	}

	fsp->fh->fd = onefs_sys_create_file(conn,
					    base_fd,
					    smb_fname_onefs->stream_name != NULL ?
					    smb_fname_onefs->stream_name :
					    smb_fname_onefs->base_name,
					    access_mask,
					    open_access_mask,
					    share_access,
					    create_options,
					    flags,
					    unx_mode,
					    oplock_request,
					    id,
					    sd,
					    new_dos_attributes,
					    granted_oplock);
	TALLOC_FREE(smb_fname_onefs);

	if (fsp->fh->fd == -1) {
		if (errno == EMFILE) {
			static time_t last_warned = 0L;

			if (time((time_t *) NULL) > last_warned) {
				DEBUG(0, ("Too many open files, unable "
					  "to open more!  smbd's max "
					  "open files = %d, also check "
					  "sysctl kern.maxfiles and "
					  "sysctl kern.maxfilesperproc\n",
					  lp_max_open_files()));
				last_warned = time((time_t *) NULL);
			}
		}

		status = map_nt_error_from_unix(errno);
		DEBUG(3, ("Error opening file %s (%s) (local_flags=%d) "
			  "(flags=%d)\n", smb_fname_str_dbg(smb_fname),
			  strerror(errno), local_flags, flags));
		return status;
	}

	if ((local_flags & O_CREAT) && !file_existed) {

		/* Inherit the ACL if required */
		if (lp_inherit_perms(SNUM(conn))) {
			inherit_access_posix_acl(conn, parent_dir,
			    smb_fname->base_name, unx_mode);
		}

		/* Change the owner if required. */
		if (lp_inherit_owner(SNUM(conn))) {
			change_file_owner_to_parent(conn, parent_dir,
			    fsp);
		}

		notify_fname(conn, NOTIFY_ACTION_ADDED,
		    FILE_NOTIFY_CHANGE_FILE_NAME, smb_fname->base_name);
	}

	if (!file_existed) {
		int ret;

		if (fsp->fh->fd == -1) {
			ret = SMB_VFS_STAT(conn, smb_fname);
		} else {
			ret = SMB_VFS_FSTAT(fsp, &smb_fname->st);
			/* If we have an fd, this stat should succeed. */
			if (ret == -1) {
				DEBUG(0, ("Error doing fstat on open file %s "
					  "(%s)\n",
					  smb_fname_str_dbg(smb_fname),
					  strerror(errno) ));
			}
		}

		/* For a non-io open, this stat failing means file not found. JRA */
		if (ret == -1) {
			status = map_nt_error_from_unix(errno);
			fd_close(fsp);
			return status;
		}
	}

	/*
	 * POSIX allows read-only opens of directories. We don't
	 * want to do this (we use a different code path for this)
	 * so catch a directory open and return an EISDIR. JRA.
	 */

	if(S_ISDIR(smb_fname->st.st_ex_mode)) {
		fd_close(fsp);
		errno = EISDIR;
		return NT_STATUS_FILE_IS_A_DIRECTORY;
	}

	fsp->mode = smb_fname->st.st_ex_mode;
	fsp->file_id = vfs_file_id_from_sbuf(conn, &smb_fname->st);
	fsp->vuid = req ? req->vuid : UID_FIELD_INVALID;
	fsp->file_pid = req ? req->smbpid : 0;
	fsp->can_lock = True;
	fsp->can_read = (access_mask & (FILE_READ_DATA)) ? True : False;
	if (!CAN_WRITE(conn)) {
		fsp->can_write = False;
	} else {
		fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ?
			True : False;
	}
	fsp->print_file = NULL;
	fsp->modified = False;
	fsp->sent_oplock_break = NO_BREAK_SENT;
	fsp->is_directory = False;
	if (conn->aio_write_behind_list &&
	    is_in_path(smb_fname->base_name, conn->aio_write_behind_list,
		       conn->case_sensitive)) {
		fsp->aio_write_behind = True;
	}

	fsp->wcp = NULL; /* Write cache pointer. */

	DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
		 conn->session_info->unix_info->unix_name,
		 smb_fname_str_dbg(smb_fname),
		 BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
		 conn->num_files_open));

	errno = 0;
	return NT_STATUS_OK;
}

/****************************************************************************
 Handle the 1 second delay in returning a SHARING_VIOLATION error.
****************************************************************************/

static void defer_open(struct share_mode_lock *lck,
		       struct timeval request_time,
		       struct timeval timeout,
		       struct smb_request *req,
		       struct deferred_open_record *state)
{
	int i;

	/* Paranoia check */

	for (i=0; i<lck->num_share_modes; i++) {
		struct share_mode_entry *e = &lck->share_modes[i];

		if (!is_deferred_open_entry(e)) {
			continue;
		}

		if (procid_is_me(&e->pid) && (e->op_mid == req->mid)) {
			DEBUG(0, ("Trying to defer an already deferred "
				"request: mid=%llu, exiting\n",
				(unsigned long long)req->mid));
			exit_server("attempt to defer a deferred request");
		}
	}

	/* End paranoia check */

	DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
		  "open entry for mid %llu\n",
		  (unsigned int)request_time.tv_sec,
		  (unsigned int)request_time.tv_usec,
		  (unsigned long long)req->mid));

	if (!push_deferred_open_message_smb(req, request_time, timeout,
				       state->id, (char *)state, sizeof(*state))) {
		exit_server("push_deferred_open_message_smb failed");
	}
	add_deferred_open(lck, req->mid, request_time, state->id);
}

static void schedule_defer_open(struct share_mode_lock *lck,
				struct timeval request_time,
				struct smb_request *req)
{
	struct deferred_open_record state;

	/* This is a relative time, added to the absolute
	   request_time value to get the absolute timeout time.
	   Note that if this is the second or greater time we enter
	   this codepath for this particular request mid then
	   request_time is left as the absolute time of the *first*
	   time this request mid was processed. This is what allows
	   the request to eventually time out. */

	struct timeval timeout;

	/* Normally the smbd we asked should respond within
	 * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
	 * the client did, give twice the timeout as a safety
	 * measure here in case the other smbd is stuck
	 * somewhere else. */

	/*
	 * On OneFS, the kernel will always send an oplock_revoked message
	 * before this timeout is hit.
	 */
	timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*10, 0);

	/* Nothing actually uses state.delayed_for_oplocks
	   but it's handy to differentiate in debug messages
	   between a 30 second delay due to oplock break, and
	   a 1 second delay for share mode conflicts. */

	state.delayed_for_oplocks = True;
	state.failed = false;
	state.id = lck->id;

	if (!request_timed_out(request_time, timeout)) {
		defer_open(lck, request_time, timeout, req, &state);
	} else {
		/* A delayed-for-oplocks deferred open timing out should only
		 * happen if there is a bug or extreme load, since we set the
		 * timeout to 300 seconds. */
		DEBUG(0, ("Deferred open timeout! request_time=%d.%d, "
		    "mid=%d\n", request_time.tv_sec, request_time.tv_usec,
		    req->mid));
	}
}

/****************************************************************************
 Open a file with a share mode.  Passed in an already created files_struct.
****************************************************************************/
NTSTATUS onefs_open_file_ntcreate(connection_struct *conn,
				  struct smb_request *req,
				  struct smb_filename *smb_fname,
				  uint32 access_mask,
				  uint32 share_access,
				  uint32 create_disposition,
				  uint32 create_options,
				  uint32 new_dos_attributes,
				  int oplock_request,
				  uint32_t private_flags,
				  struct security_descriptor *sd,
				  files_struct *fsp,
				  int *pinfo,
				  struct onefs_fsp_data *fsp_data)
{
	int flags=0;
	int flags2=0;
	bool file_existed = VALID_STAT(smb_fname->st);
	bool def_acl = False;
	bool posix_open = False;
	bool new_file_created = False;
	bool clear_ads = False;
	struct file_id id;
	mode_t new_unx_mode = (mode_t)0;
	mode_t unx_mode = (mode_t)0;
	int info;
	uint32 existing_dos_attributes = 0;
	struct timeval request_time = timeval_zero();
	struct share_mode_lock *lck = NULL;
	uint32 open_access_mask = access_mask;
	NTSTATUS status;
	int ret_flock;
	char *parent_dir;
	int granted_oplock;
	uint64_t oplock_callback_id = 0;
	uint32 createfile_attributes = 0;

	ZERO_STRUCT(id);

	if (conn->printer) {
		/*
		 * Printers are handled completely differently.
		 * Most of the passed parameters are ignored.
		 */

		if (pinfo) {
			*pinfo = FILE_WAS_CREATED;
		}

		DEBUG(10, ("onefs_open_file_ntcreate: printer open fname=%s\n",
			   smb_fname_str_dbg(smb_fname)));

		return print_spool_open(fsp, smb_fname->base_name,
					req->vuid);
	}

	if (!parent_dirname(talloc_tos(), smb_fname->base_name, &parent_dir,
			    NULL)) {
		return NT_STATUS_NO_MEMORY;
	}

	if (new_dos_attributes & FILE_FLAG_POSIX_SEMANTICS) {
		posix_open = True;
		unx_mode = (mode_t)(new_dos_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
		new_dos_attributes = 0;
	} else {
		/* We add FILE_ATTRIBUTE_ARCHIVE to this as this mode is only used if the file is
		 * created new. */
		unx_mode = unix_mode(conn, new_dos_attributes | FILE_ATTRIBUTE_ARCHIVE,
				     smb_fname, parent_dir);
	}

	DEBUG(10,("onefs_open_file_ntcreate: fname=%s, dos_attrs=0x%x "
		  "access_mask=0x%x share_access=0x%x "
		  "create_disposition = 0x%x create_options=0x%x "
		  "unix mode=0%o oplock_request=0x%x\n",
		  smb_fname_str_dbg(smb_fname), new_dos_attributes,
		  access_mask, share_access, create_disposition,
		  create_options, unx_mode, oplock_request));

	/*
	 * Any non-stat-only open has the potential to contend oplocks, which
	 * means to avoid blocking in the kernel (which is unacceptable), the
	 * open must be deferred.  In order to defer opens, req must not be
	 * NULL.  The known cases of calling with a NULL req:
	 *
	 *   1. Open the base file of a stream: Always done stat-only
	 *
	 *   2. open_file_fchmod(), which is called from 3 places:
	 *      A. try_chown: Posix acls only. Never called on onefs.
	 *      B. set_ea_dos_attributes: Can't be called from onefs, because
	 *         SMB_VFS_SETXATTR return ENOSYS.
	 *      C. file_set_dos_mode: This would only happen if the "dos
	 *         filemode" smb.conf parameter is set to yes.  We ship with
	 *	   it off, but if a customer were to turn it on it would be
	 *         bad.
	 */
	if (req == NULL && !is_stat_open(access_mask) &&
	    !is_ntfs_stream_smb_fname(smb_fname)) {
		smb_panic("NULL req on a non-stat-open!");
	}

	if ((req == NULL) && ((oplock_request & INTERNAL_OPEN_ONLY) == 0)) {
		DEBUG(0, ("No smb request but not an internal only open!\n"));
		return NT_STATUS_INTERNAL_ERROR;
	}

	/*
	 * Only non-internal opens can be deferred at all
	 */

	if (req) {
		void *ptr;
		if (get_deferred_open_message_state(req,
				&request_time,
				&ptr)) {
			struct deferred_open_record *state = (struct deferred_open_record *)ptr;

			/* Remember the absolute time of the original
			   request with this mid. We'll use it later to
			   see if this has timed out. */

			/* Remove the deferred open entry under lock. */
			remove_deferred_open_entry(state->id, req->mid);

			/* Ensure we don't reprocess this message. */
			remove_deferred_open_message_smb(req->mid);

			/*
			 * When receiving a semlock_async_failure message, the
			 * deferred open will be marked as "failed". Returning
			 * INTERNAL_ERROR.
			 */
			if (state->failed) {
				DEBUG(0, ("onefs_open_file_ntcreate: "
					  "semlock_async_failure detected!\n"));
				return NT_STATUS_INTERNAL_ERROR;
			}
		}
	}

	status = check_name(conn, smb_fname->base_name);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}

	if (!posix_open) {
		new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
		if (file_existed) {
			existing_dos_attributes = dos_mode(conn, smb_fname);
		}
	}

	/* Setup dos_attributes to be set by ifs_createfile */
	if (lp_store_dos_attributes(SNUM(conn))) {
		createfile_attributes = (new_dos_attributes | FILE_ATTRIBUTE_ARCHIVE) &
		    ~(FILE_ATTRIBUTE_NONINDEXED | FILE_ATTRIBUTE_COMPRESSED);
	}

	/* Ignore oplock requests if oplocks are disabled. */
	if (!lp_oplocks(SNUM(conn)) ||
	    IS_VETO_OPLOCK_PATH(conn, smb_fname->base_name)) {
		/* Mask off everything except the private Samba bits. */
		oplock_request &= SAMBA_PRIVATE_OPLOCK_MASK;
	}

	/* this is for OS/2 long file names - say we don't support them */
	if (!lp_posix_pathnames() && strstr(smb_fname->base_name,".+,;=[].")) {
		/* OS/2 Workplace shell fix may be main code stream in a later
		 * release. */
		DEBUG(5,("onefs_open_file_ntcreate: OS/2 long filenames are "
			  "not supported.\n"));
		if (use_nt_status()) {
			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
		}
		return NT_STATUS_DOS(ERRDOS, ERRcannotopen);
	}

	switch( create_disposition ) {
		/*
		 * Currently we're using FILE_SUPERSEDE as the same as
		 * FILE_OVERWRITE_IF but they really are
		 * different. FILE_SUPERSEDE deletes an existing file
		 * (requiring delete access) then recreates it.
		 */
		case FILE_SUPERSEDE:
			/**
			 * @todo: Clear all file attributes?
			 * http://www.osronline.com/article.cfm?article=302
			 * create if not exist, trunc if exist
			 *
			 * If file exists replace/overwrite. If file doesn't
			 * exist create.
			 */
			flags2 |= (O_CREAT | O_TRUNC);
			clear_ads = true;
			break;

		case FILE_OVERWRITE_IF:
			/* If file exists replace/overwrite. If file doesn't
			 * exist create. */
			flags2 |= (O_CREAT | O_TRUNC);
			clear_ads = true;
			break;

		case FILE_OPEN:
			/* If file exists open. If file doesn't exist error. */
			if (!file_existed) {
				DEBUG(5,("onefs_open_file_ntcreate: FILE_OPEN "
					 "requested for file %s and file "
					 "doesn't exist.\n",
					 smb_fname_str_dbg(smb_fname)));
				errno = ENOENT;
				return NT_STATUS_OBJECT_NAME_NOT_FOUND;
			}
			break;

		case FILE_OVERWRITE:
			/* If file exists overwrite. If file doesn't exist
			 * error. */
			if (!file_existed) {
				DEBUG(5, ("onefs_open_file_ntcreate: "
					  "FILE_OVERWRITE requested for file "
					  "%s and file doesn't exist.\n",
					  smb_fname_str_dbg(smb_fname)));
				errno = ENOENT;
				return NT_STATUS_OBJECT_NAME_NOT_FOUND;
			}
			flags2 |= O_TRUNC;
			clear_ads = true;
			break;

		case FILE_CREATE:
			/* If file exists error. If file doesn't exist
			 * create. */
			if (file_existed) {
				DEBUG(5, ("onefs_open_file_ntcreate: "
					  "FILE_CREATE requested for file %s "
					  "and file already exists.\n",
					  smb_fname_str_dbg(smb_fname)));
				if (S_ISDIR(smb_fname->st.st_ex_mode)) {
					errno = EISDIR;
				} else {
					errno = EEXIST;
				}
				return map_nt_error_from_unix(errno);
			}
			flags2 |= (O_CREAT|O_EXCL);
			break;

		case FILE_OPEN_IF:
			/* If file exists open. If file doesn't exist
			 * create. */
			flags2 |= O_CREAT;
			break;

		default:
			return NT_STATUS_INVALID_PARAMETER;
	}

	/* Match attributes on file exists and overwrite. */
	if (!posix_open && file_existed &&
	    ((create_disposition == FILE_OVERWRITE) ||
		(create_disposition == FILE_OVERWRITE_IF))) {
		if (!open_match_attributes(conn, existing_dos_attributes,
					   new_dos_attributes,
					   smb_fname->st.st_ex_mode,
					   unx_mode, &new_unx_mode)) {
			DEBUG(5, ("onefs_open_file_ntcreate: attributes "
				  "missmatch for file %s (%x %x) (0%o, 0%o)\n",
				  smb_fname_str_dbg(smb_fname),
				  existing_dos_attributes,
				  new_dos_attributes,
				  (unsigned int)smb_fname->st.st_ex_mode,
				  (unsigned int)unx_mode ));
			errno = EACCES;
			return NT_STATUS_ACCESS_DENIED;
		}
	}

	/*
	 * OneFS understands MAXIMUM_ALLOWED_ACCESS, so only hack the
	 * access_mask, but leave the MAA for the actual open in
	 * open_access_mask.
	 */
	open_access_mask = access_mask;
	if (open_access_mask & MAXIMUM_ALLOWED_ACCESS) {
		access_mask |= FILE_GENERIC_ALL;
	}

	/* Convert GENERIC bits to specific bits. */
	se_map_generic(&access_mask, &file_generic_mapping);
	se_map_generic(&open_access_mask, &file_generic_mapping);

	if ((flags2 & O_TRUNC) || (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
		/* This will cause oplock breaks. */
		open_access_mask |= FILE_WRITE_DATA;
	}

	DEBUG(10, ("onefs_open_file_ntcreate: fname=%s, after mapping "
		   "open_access_mask=%#x, access_mask=0x%x\n",
		   smb_fname_str_dbg(smb_fname), open_access_mask,
		   access_mask));

	/*
	 * Note that we ignore the append flag as append does not
	 * mean the same thing under DOS and Unix.
	 */

	if ((access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ||
	    (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {

		/*
		 * DENY_DOS opens are always underlying read-write on the
		 * file handle, no matter what the requested access mask
		 * says. Stock samba just sets the flags, but since
		 * ifs_createfile uses the access_mask, it must be updated as
		 * well.  This allows BASE-DENY* to pass.
		 */
		if (create_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) {

			DEBUG(10,("onefs_open_file_ntcreate: deny_dos: "
				  "Adding O_RDWR to flags "
				  "(0x%x) and some READ bits to "
				  "open_access_mask (0x%x)\n",
				  flags, open_access_mask));

			flags = O_RDWR;
			open_access_mask |= (FILE_READ_ATTRIBUTES |
			    FILE_READ_DATA | FILE_READ_EA | FILE_EXECUTE);

		} else if (access_mask & (FILE_READ_ATTRIBUTES |
			       FILE_READ_DATA |
			       FILE_READ_EA |
			       FILE_EXECUTE)) {
			flags = O_RDWR;
		} else {
			flags = O_WRONLY;
		}
	} else {
		flags = O_RDONLY;
	}

	/* Currently we only look at FILE_WRITE_THROUGH for create options. */
#if defined(O_SYNC)
	if ((create_options & FILE_WRITE_THROUGH) &&
	    lp_strict_sync(SNUM(conn))) {
		flags2 |= O_SYNC;
	}
#endif /* O_SYNC */

	if (posix_open && (access_mask & FILE_APPEND_DATA)) {
		flags2 |= O_APPEND;
	}

	if (!posix_open && !CAN_WRITE(conn)) {
		/*
		 * We should really return a permission denied error if either
		 * O_CREAT or O_TRUNC are set, but for compatibility with
		 * older versions of Samba we just AND them out.
		 */
		flags2 &= ~(O_CREAT|O_TRUNC);

		/* Deny DELETE_ACCESS explicitly if the share is read only. */
		if (access_mask & DELETE_ACCESS) {
			return map_nt_error_from_unix(EACCES);
		}
	}

	/* Ensure we can't write on a read-only share or file. */
	if (flags != O_RDONLY && file_existed &&
	    (!CAN_WRITE(conn) || IS_DOS_READONLY(existing_dos_attributes))) {
		DEBUG(5, ("onefs_open_file_ntcreate: write access requested "
			  "for file %s on read only %s\n",
			  smb_fname_str_dbg(smb_fname),
			  !CAN_WRITE(conn) ? "share" : "file" ));
		errno = EACCES;
		return NT_STATUS_ACCESS_DENIED;
	}

	DEBUG(10, ("fsp = %p\n", fsp));

	fsp->share_access = share_access;
	fsp->fh->private_options = private_flags;
	fsp->access_mask = open_access_mask; /* We change this to the
					      * requested access_mask after
					      * the open is done. */
	fsp->posix_open = posix_open;

	/* Ensure no SAMBA_PRIVATE bits can be set. */
	fsp->oplock_type = (oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK);

	if (timeval_is_zero(&request_time)) {
		request_time = fsp->open_time;
	}

	if (file_existed) {
		struct timespec old_write_time = smb_fname->st.st_ex_mtime;
		id = vfs_file_id_from_sbuf(conn, &smb_fname->st);

		lck = get_share_mode_lock(talloc_tos(), id,
					  conn->connectpath,
					  smb_fname, &old_write_time);

		if (lck == NULL) {
			DEBUG(0, ("Could not get share mode lock\n"));
			return NT_STATUS_SHARING_VIOLATION;
		}

		if (lck->delete_on_close) {
			/* DELETE_PENDING is not deferred for a second */
			TALLOC_FREE(lck);
			return NT_STATUS_DELETE_PENDING;
		}
	}

	SMB_ASSERT(!file_existed || (lck != NULL));

	/*
	 * Ensure we pay attention to default ACLs on directories.  May be
	 * neccessary depending on ACL policies.
	 */
        if ((flags2 & O_CREAT) && lp_inherit_acls(SNUM(conn)) &&
	    (def_acl = directory_has_default_acl(conn, parent_dir))) {
		unx_mode = 0777;
	}

	DEBUG(4,("calling onefs_open_file with flags=0x%X flags2=0x%X "
		 "mode=0%o, access_mask = 0x%x, open_access_mask = 0x%x\n",
		 (unsigned int)flags, (unsigned int)flags2,
		 (unsigned int)unx_mode, (unsigned int)access_mask,
		 (unsigned int)open_access_mask));

	/*
	 * Since the open is guaranteed to be stat only if req == NULL, a
	 * callback record is only needed if req != NULL.
	 */
	if (req) {
		SMB_ASSERT(fsp_data);
		oplock_callback_id = onefs_oplock_wait_record(req->mid);
		if (oplock_callback_id == 0) {
			return NT_STATUS_NO_MEMORY;
		}
	} else {
		/*
		 * It is also already asserted it's either a stream or a
		 * stat-only open at this point.
		 */
		SMB_ASSERT(fsp->oplock_type == NO_OPLOCK);

		/* The kernel and Samba's version of stat-only differs
		 * slightly: The kernel doesn't think its stat-only if we're
		 * truncating.  We'd better have a req in order to defer the
		 * open. */
		SMB_ASSERT(!((flags|flags2) & O_TRUNC));
	}

	/* Do the open. */
	status = onefs_open_file(fsp,
				 conn,
				 req,
				 parent_dir,
				 smb_fname,
				 flags|flags2,
				 unx_mode,
				 access_mask,
				 open_access_mask,
				 fsp->oplock_type,
				 oplock_callback_id,
				 share_access,
				 create_options,
				 createfile_attributes,
				 sd,
				 &granted_oplock);

	if (!NT_STATUS_IS_OK(status)) {

		/* OneFS Oplock Handling */
		if (errno == EINPROGRESS) {

			/* If we get EINPROGRESS, the kernel will send us an
			 * asynchronous semlock event back. Ensure we can defer
			 * the open, by asserting req. */
			SMB_ASSERT(req);

			if (lck == NULL) {
				/*
				 * We hit the race that when we did the stat
				 * on the file it did not exist, and someone
				 * has created it in between the stat and the
				 * open_file() call. Defer our open waiting,
				 * to break the oplock of the first opener.
				 */

				struct timespec old_write_time;

				DEBUG(3, ("Someone created file %s with an "
					  "oplock after we looked: Retrying\n",
					  smb_fname_str_dbg(smb_fname)));
				/*
				 * We hit the race that when we did the stat
				 * on the file it did not exist, and someone
				 * has created it in between the stat and the
				 * open_file() call. Just retry immediately.
				 */
				id = vfs_file_id_from_sbuf(conn,
							   &smb_fname->st);
				if (!(lck = get_share_mode_lock(talloc_tos(),
					  id, conn->connectpath, smb_fname,
					  &old_write_time))) {
					/*
					 * Emergency exit
					 */
					DEBUG(0, ("onefs_open_file_ntcreate: "
						  "Could not get share mode "
						  "lock for %s\n",
						smb_fname_str_dbg(smb_fname)));
					status = NT_STATUS_SHARING_VIOLATION;

					/* XXXZLK: This will cause us to get a
					 * semlock event when we aren't
					 * expecting one. */
					goto cleanup_destroy;
				}

				schedule_defer_open(lck, request_time, req);
				goto cleanup;
			}
			/* Waiting for an oplock */
			DEBUG(5,("Async createfile because a client has an "
				 "oplock on %s\n",
				 smb_fname_str_dbg(smb_fname)));

			SMB_ASSERT(req);
			schedule_defer_open(lck, request_time, req);
			goto cleanup;
		}

		/* Check for a sharing violation */
		if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) {
			uint32 can_access_mask;
			bool can_access = True;

			/* If we raced on open we may not have a valid file_id
			 * or stat buf.  Get them again. */
			if (SMB_VFS_STAT(conn, fname, psbuf) == -1) {
				DEBUG(0,("Error doing stat on file %s "
					"(%s)\n", fname, strerror(errno)));
				status = NT_STATUS_SHARING_VIOLATION;
				goto cleanup_destroy;
			}
			id = vfs_file_id_from_sbuf(conn, psbuf);

			/* Check if this can be done with the deny_dos and fcb
			 * calls. */

			/* Try to find dup fsp if possible. */
			if (private_flags &
			    (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
			     NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {

				if (req == NULL) {
					DEBUG(0, ("DOS open without an SMB "
						  "request!\n"));
					status = NT_STATUS_INTERNAL_ERROR;
					goto cleanup_destroy;
				}

				/* Use the client requested access mask here,
				 * not the one we open with. */
				status = fcb_or_dos_open(req,
							conn,
							fsp,
							smb_fname,
							id,
							req->smbpid,
							req->vuid,
							access_mask,
							share_access,
							create_options);

				if (NT_STATUS_IS_OK(status)) {
					if (pinfo) {
						*pinfo = FILE_WAS_OPENED;
					}
					status =  NT_STATUS_OK;
					goto cleanup;
				}
			}

			/*
			 * This next line is a subtlety we need for
			 * MS-Access. If a file open will fail due to share
			 * permissions and also for security (access) reasons,
			 * we need to return the access failed error, not the
			 * share error. We can't open the file due to kernel
			 * oplock deadlock (it's possible we failed above on
			 * the open_mode_check()) so use a userspace check.
			 */

			if (flags & O_RDWR) {
				can_access_mask = FILE_READ_DATA|FILE_WRITE_DATA;
			} else if (flags & O_WRONLY) {
				can_access_mask = FILE_WRITE_DATA;
			} else {
				can_access_mask = FILE_READ_DATA;
			}

			if (((can_access_mask & FILE_WRITE_DATA) &&
				!CAN_WRITE(conn)) ||
			    !can_access_file_data(conn, smb_fname,
						  can_access_mask)) {
				can_access = False;
			}

			/*
			 * If we're returning a share violation, ensure we
			 * cope with the braindead 1 second delay.
			 */
			if (!(oplock_request & INTERNAL_OPEN_ONLY) &&
			    lp_defer_sharing_violations()) {
				struct timeval timeout;
				struct deferred_open_record state;
				int timeout_usecs;

				/* this is a hack to speed up torture tests
				   in 'make test' */
				timeout_usecs = lp_parm_int(SNUM(conn),
				    "smbd","sharedelay",
				    SHARING_VIOLATION_USEC_WAIT);

				/* This is a relative time, added to the
				   absolute request_time value to get the
				   absolute timeout time.  Note that if this
				   is the second or greater time we enter this
				   codepath for this particular request mid
				   then request_time is left as the absolute
				   time of the *first* time this request mid
				   was processed. This is what allows the
				   request to eventually time out. */

				timeout = timeval_set(0, timeout_usecs);

				/* Nothing actually uses
				   state.delayed_for_oplocks but it's handy to
				   differentiate in debug messages between a
				   30 second delay due to oplock break, and a
				   1 second delay for share mode conflicts. */

				state.delayed_for_oplocks = False;
				state.id = id;
				state.failed = false;

				/*
				 * We hit the race that when we did the stat
				 * on the file it did not exist, and someone
				 * has created it in between the stat and the
				 * open_file() call.  Retrieve the share_mode
				 * lock on the newly opened file so we can
				 * defer our request.
				 */
				if (lck == NULL) {
					struct timespec old_write_time;
					old_write_time = get_mtimespec(psbuf);

					lck = get_share_mode_lock(talloc_tos(),
					    id, conn->connectpath, fname,
					    &old_write_time);
					if (lck == NULL) {
						DEBUG(0,
						    ("onefs_open_file_ntcreate:"
						     " Could not get share "
						     "mode lock for %s\n",
						     fname));
						/* This will cause us to return
						 * immediately skipping the
						 * the 1 second delay, which
						 * isn't a big deal */
						status = NT_STATUS_SHARING_VIOLATION;
						goto cleanup_destroy;
					}
				}

				if ((req != NULL) &&
				    !request_timed_out(request_time, timeout))
				{
					defer_open(lck, request_time, timeout,
						   req, &state);
				}
			}

			if (can_access) {
				/*
				 * We have detected a sharing violation here
				 * so return the correct error code
				 */
				status = NT_STATUS_SHARING_VIOLATION;
			} else {
				status = NT_STATUS_ACCESS_DENIED;
			}

			goto cleanup_destroy;
		}

		/*
		 * Normal error, for example EACCES
		 */
	 cleanup_destroy:
		if (oplock_callback_id != 0) {
			destroy_onefs_callback_record(oplock_callback_id);
		}
	 cleanup:
		TALLOC_FREE(lck);
		return status;
	}

	fsp->oplock_type = granted_oplock;

	if (oplock_callback_id != 0) {
		onefs_set_oplock_callback(oplock_callback_id, fsp);
		fsp_data->oplock_callback_id = oplock_callback_id;
	} else {
		SMB_ASSERT(fsp->oplock_type == NO_OPLOCK);
	}

	if (!file_existed) {
		struct timespec old_write_time = smb_fname->st.st_ex_mtime;
		/*
		 * Deal with the race condition where two smbd's detect the
		 * file doesn't exist and do the create at the same time. One
		 * of them will win and set a share mode, the other (ie. this
		 * one) should check if the requested share mode for this
		 * create is allowed.
		 */

		/*
		 * Now the file exists and fsp is successfully opened,
		 * fsp->file_id is valid and should replace the
		 * dev=0, inode=0 from a non existent file. Spotted by
		 * Nadav Danieli <nadavd@exanet.com>. JRA.
		 */

		id = fsp->file_id;

		lck = get_share_mode_lock(talloc_tos(), id,
					  conn->connectpath,
					  smb_fname, &old_write_time);

		if (lck == NULL) {
			DEBUG(0, ("onefs_open_file_ntcreate: Could not get "
				  "share mode lock for %s\n",
				  smb_fname_str_dbg(smb_fname)));
			fd_close(fsp);
			return NT_STATUS_SHARING_VIOLATION;
		}

		if (lck->delete_on_close) {
			status = NT_STATUS_DELETE_PENDING;
		}

		if (!NT_STATUS_IS_OK(status)) {
			struct deferred_open_record state;

			fd_close(fsp);

			state.delayed_for_oplocks = False;
			state.id = id;

			/* Do it all over again immediately. In the second
			 * round we will find that the file existed and handle
			 * the DELETE_PENDING and FCB cases correctly. No need
			 * to duplicate the code here. Essentially this is a
			 * "goto top of this function", but don't tell
			 * anybody... */

			if (req != NULL) {
				defer_open(lck, request_time, timeval_zero(),
					   req, &state);
			}
			TALLOC_FREE(lck);
			return status;
		}

		/*
		 * We exit this block with the share entry *locked*.....
		 */

	}

	SMB_ASSERT(lck != NULL);

	/* Delete streams if create_disposition requires it */
	if (file_existed && clear_ads &&
	    !is_ntfs_stream_smb_fname(smb_fname)) {
		status = delete_all_streams(conn, smb_fname->base_name);
		if (!NT_STATUS_IS_OK(status)) {
			TALLOC_FREE(lck);
			fd_close(fsp);
			return status;
		}
	}

	/* note that we ignore failure for the following. It is
           basically a hack for NFS, and NFS will never set one of
           these only read them. Nobody but Samba can ever set a deny
           mode and we have already checked our more authoritative
           locking database for permission to set this deny mode. If
           the kernel refuses the operations then the kernel is wrong.
	   note that GPFS supports it as well - jmcd */

	if (fsp->fh->fd != -1) {
		ret_flock = SMB_VFS_KERNEL_FLOCK(fsp, share_access, access_mask);
		if(ret_flock == -1 ){

			TALLOC_FREE(lck);
			fd_close(fsp);
			return NT_STATUS_SHARING_VIOLATION;
		}
	}

	/*
	 * At this point onwards, we can guarentee that the share entry
	 * is locked, whether we created the file or not, and that the
	 * deny mode is compatible with all current opens.
	 */

	/*
	 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
	 */
	fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;

	if (file_existed) {
		/* stat opens on existing files don't get oplocks. */
		if (is_stat_open(open_access_mask)) {
			fsp->oplock_type = NO_OPLOCK;
		}

		if (!(flags2 & O_TRUNC)) {
			info = FILE_WAS_OPENED;
		} else {
			info = FILE_WAS_OVERWRITTEN;
		}
	} else {
		info = FILE_WAS_CREATED;
	}

	if (pinfo) {
		*pinfo = info;
	}

	/*
	 * Setup the oplock info in both the shared memory and
	 * file structs.
	 */

	if ((fsp->oplock_type != NO_OPLOCK) &&
	    (fsp->oplock_type != FAKE_LEVEL_II_OPLOCK)) {
		if (!set_file_oplock(fsp, fsp->oplock_type)) {
			/* Could not get the kernel oplock */
			fsp->oplock_type = NO_OPLOCK;
		}
	}

	if (fsp->oplock_type == LEVEL_II_OPLOCK &&
	    (!lp_level2_oplocks(SNUM(conn)) ||
		!(global_client_caps & CAP_LEVEL_II_OPLOCKS))) {

		DEBUG(5, ("Downgrading level2 oplock on open "
			  "because level2 oplocks = off\n"));

		release_file_oplock(fsp);
	}

	if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED ||
	    info == FILE_WAS_SUPERSEDED) {
		new_file_created = True;
	}

	set_share_mode(lck, fsp, get_current_uid(conn),
			req ? req->mid : 0,
		       fsp->oplock_type);

	/* Handle strange delete on close create semantics. */
	if (create_options & FILE_DELETE_ON_CLOSE) {
		status = can_set_delete_on_close(fsp, new_dos_attributes);

		if (!NT_STATUS_IS_OK(status)) {
			/* Remember to delete the mode we just added. */
			del_share_mode(lck, fsp);
			TALLOC_FREE(lck);
			fd_close(fsp);
			return status;
		}
		/* Note that here we set the *inital* delete on close flag,
		   not the regular one. The magic gets handled in close. */
		fsp->initial_delete_on_close = True;
	}

	/*
	 * Take care of inherited ACLs on created files - if default ACL not
	 * selected.
	 * May be necessary depending on acl policies.
	 */
	if (!posix_open && !file_existed && !def_acl &&
	    !(VALID_STAT(smb_fname->st) &&
		(smb_fname->st.st_ex_flags & SF_HASNTFSACL))) {

		int saved_errno = errno; /* We might get ENOSYS in the next
					  * call.. */

		if (SMB_VFS_FCHMOD_ACL(fsp, unx_mode) == -1 &&
		    errno == ENOSYS) {
			errno = saved_errno; /* Ignore ENOSYS */
		}

	} else if (new_unx_mode) {

		int ret = -1;

		/* Attributes need changing. File already existed. */

		{
			int saved_errno = errno; /* We might get ENOSYS in the
						  * next call.. */
			ret = SMB_VFS_FCHMOD_ACL(fsp, new_unx_mode);

			if (ret == -1 && errno == ENOSYS) {
				errno = saved_errno; /* Ignore ENOSYS */
			} else {
				DEBUG(5, ("onefs_open_file_ntcreate: reset "
					  "attributes of file %s to 0%o\n",
					  smb_fname_str_dbg(smb_fname),
					  (unsigned int)new_unx_mode));
				ret = 0; /* Don't do the fchmod below. */
			}
		}

		if ((ret == -1) &&
		    (SMB_VFS_FCHMOD(fsp, new_unx_mode) == -1))
			DEBUG(5, ("onefs_open_file_ntcreate: failed to reset "
				  "attributes of file %s to 0%o\n",
				  smb_fname_str_dbg(smb_fname),
				  (unsigned int)new_unx_mode));
	}

	/* If this is a successful open, we must remove any deferred open
	 * records. */
	if (req != NULL) {
		del_deferred_open_entry(lck, req->mid);
	}
	TALLOC_FREE(lck);

	return NT_STATUS_OK;
}


/****************************************************************************
 Open a directory from an NT SMB call.
****************************************************************************/
static NTSTATUS onefs_open_directory(connection_struct *conn,
				     struct smb_request *req,
				     struct smb_filename *smb_dname,
				     uint32 access_mask,
				     uint32 share_access,
				     uint32 create_disposition,
				     uint32 create_options,
				     uint32 file_attributes,
				     struct security_descriptor *sd,
				     files_struct **result,
				     int *pinfo)
{
	files_struct *fsp = NULL;
	struct share_mode_lock *lck = NULL;
	NTSTATUS status;
	struct timespec mtimespec;
	int info = 0;
	char *parent_dir;
	bool posix_open = false;
	uint32 create_flags = 0;
	uint32 mode = lp_dir_mask(SNUM(conn));

	DEBUG(5, ("onefs_open_directory: opening directory %s, "
		  "access_mask = 0x%x, "
		  "share_access = 0x%x create_options = 0x%x, "
		  "create_disposition = 0x%x, file_attributes = 0x%x\n",
		  smb_fname_str_dbg(smb_dname), (unsigned int)access_mask,
		  (unsigned int)share_access, (unsigned int)create_options,
		  (unsigned int)create_disposition,
		  (unsigned int)file_attributes));

	if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
	    (conn->fs_capabilities & FILE_NAMED_STREAMS) &&
	    is_ntfs_stream_smb_fname(smb_dname)) {
		DEBUG(2, ("onefs_open_directory: %s is a stream name!\n",
			  smb_fname_str_dbg(smb_dname)));
		return NT_STATUS_NOT_A_DIRECTORY;
	}

	switch (create_disposition) {
		case FILE_OPEN:
			/* If directory exists open. If directory doesn't
			 * exist error. */
			create_flags = 0;
			info = FILE_WAS_OPENED;
			break;
		case FILE_CREATE:
			/* If directory exists error. If directory doesn't
			 * exist create. */
			create_flags = O_CREAT | O_EXCL;
			info = FILE_WAS_CREATED;
			break;
		case FILE_OPEN_IF:
			/* If directory exists open. If directory doesn't
			 * exist create. */

			/* Note: in order to return whether the directory was
			 * opened or created, we first try to open and then try
			 * to create. */
			create_flags = 0;
			info = FILE_WAS_OPENED;
			break;
		case FILE_SUPERSEDE:
		case FILE_OVERWRITE:
		case FILE_OVERWRITE_IF:
		default:
			DEBUG(5, ("onefs_open_directory: invalid "
				  "create_disposition 0x%x for directory %s\n",
				  (unsigned int)create_disposition,
				  smb_fname_str_dbg(smb_dname)));
			return NT_STATUS_INVALID_PARAMETER;
	}

	/*
	 * Check for write access to the share. Done in mkdir_internal() in
	 * mainline samba.
	 */
	if (!CAN_WRITE(conn) && (create_flags & O_CREAT)) {
		return NT_STATUS_ACCESS_DENIED;
	}

	/* Get parent dirname */
	if (!parent_dirname(talloc_tos(), smb_dname->base_name, &parent_dir,
			    NULL)) {
		return NT_STATUS_NO_MEMORY;
	}

	if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
		posix_open = true;
		mode = (mode_t)(file_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
		file_attributes = 0;
	} else {
		mode = unix_mode(conn, FILE_ATTRIBUTE_DIRECTORY, smb_dname, parent_dir);
	}

	/*
	 * The NONINDEXED and COMPRESSED bits seem to always be cleared on
	 * directories, no matter if you specify that they should be set.
	 */
	file_attributes &=
	    ~(FILE_ATTRIBUTE_NONINDEXED | FILE_ATTRIBUTE_COMPRESSED);

	status = file_new(req, conn, &fsp);
	if(!NT_STATUS_IS_OK(status)) {
		return status;
	}

	/*
	 * Actual open with retry magic to handle FILE_OPEN_IF which is
	 * unique because the kernel won't tell us if the file was opened or
	 * created.
	 */
 retry_open:
	fsp->fh->fd = onefs_sys_create_file(conn,
					    -1,
					    smb_dname->base_name,
					    access_mask,
					    access_mask,
					    share_access,
					    create_options,
					    create_flags | O_DIRECTORY,
					    mode,
					    0,
					    0,
					    sd,
					    file_attributes,
					    NULL);

	if (fsp->fh->fd == -1) {
		DEBUG(3, ("Error opening %s. Errno=%d (%s).\n",
			  smb_fname_str_dbg(smb_dname), errno,
			  strerror(errno)));
		SMB_ASSERT(errno != EINPROGRESS);

		if (create_disposition == FILE_OPEN_IF) {
			if (errno == ENOENT) {
				/* Try again, creating it this time. */
				create_flags = O_CREAT | O_EXCL;
				info = FILE_WAS_CREATED;
				goto retry_open;
			} else if (errno == EEXIST) {
				/* Uggh. Try again again. */
				create_flags = 0;
				info = FILE_WAS_OPENED;
				goto retry_open;
			}
		}

		/* Error cases below: */
		file_free(req, fsp);

		if ((errno == ENOENT) && (create_disposition == FILE_OPEN)) {
			DEBUG(5, ("onefs_open_directory: FILE_OPEN requested "
				  "for directory %s and it doesn't "
				  "exist.\n", smb_fname_str_dbg(smb_dname)));
			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
		} else if ((errno == EEXIST) &&
		    (create_disposition == FILE_CREATE)) {
			DEBUG(5, ("onefs_open_directory: FILE_CREATE "
				  "requested for directory %s and it "
				  "already exists.\n",
				  smb_fname_str_dbg(smb_dname)));
			return NT_STATUS_OBJECT_NAME_COLLISION;
		} else if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) {
			/* Catch sharing violations. */
			return NT_STATUS_SHARING_VIOLATION;
		}

		return map_nt_error_from_unix(errno);
	}

	if (info == FILE_WAS_CREATED) {

		/* Pulled from mkdir_internal() */
		if (SMB_VFS_LSTAT(conn, smb_dname) == -1) {
			DEBUG(2, ("Could not stat directory '%s' just "
				  "created: %s\n",
				  smb_fname_str_dbg(smb_dname),
				  strerror(errno)));
			return map_nt_error_from_unix(errno);
		}

		if (!S_ISDIR(smb_dname->st.st_ex_mode)) {
			DEBUG(0, ("Directory just '%s' created is not a "
				  "directory\n",
				  smb_fname_str_dbg(smb_dname)));
			return NT_STATUS_ACCESS_DENIED;
		}

		if (!posix_open) {
			/*
			 * Check if high bits should have been set, then (if
			 * bits are missing): add them.  Consider bits
			 * automagically set by UNIX, i.e. SGID bit from
			 * parent dir.
			 */
			if (mode & ~(S_IRWXU|S_IRWXG|S_IRWXO) &&
			    (mode & ~smb_dname->st.st_ex_mode)) {
				SMB_VFS_CHMOD(conn, smb_dname->base_name,
				    (smb_dname->st.st_ex_mode |
					(mode & ~smb_dname->st.st_ex_mode)));
			}
		}

		/* Change the owner if required. */
		if (lp_inherit_owner(SNUM(conn))) {
			change_dir_owner_to_parent(conn, parent_dir,
						   smb_dname->base_name,
						   &smb_dname->st);
		}

		notify_fname(conn, NOTIFY_ACTION_ADDED,
			     FILE_NOTIFY_CHANGE_DIR_NAME,
			     smb_dname->base_name);
	}

	/* Stat the fd for Samba bookkeeping. */
	if(SMB_VFS_FSTAT(fsp, &smb_dname->st) != 0) {
		fd_close(fsp);
		file_free(req, fsp);
		return map_nt_error_from_unix(errno);
	}

	/* Setup the files_struct for it. */
	fsp->mode = smb_dname->st.st_ex_mode;
	fsp->file_id = vfs_file_id_from_sbuf(conn, &smb_dname->st);
	fsp->vuid = req ? req->vuid : UID_FIELD_INVALID;
	fsp->file_pid = req ? req->smbpid : 0;
	fsp->can_lock = False;
	fsp->can_read = False;
	fsp->can_write = False;

	fsp->share_access = share_access;
	fsp->fh->private_options = 0;
	/*
	 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
	 */
	fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
	fsp->print_file = NULL;
	fsp->modified = False;
	fsp->oplock_type = NO_OPLOCK;
	fsp->sent_oplock_break = NO_BREAK_SENT;
	fsp->is_directory = True;
	fsp->posix_open = posix_open;

	status = fsp_set_smb_fname(fsp, smb_dname);
	if (!NT_STATUS_IS_OK(status)) {
		fd_close(fsp);
		file_free(req, fsp);
		return status;
	}

	mtimespec = smb_dname->st.st_ex_mtime;

	/*
	 * Still set the samba share mode lock for correct delete-on-close
	 * semantics and to make smbstatus more useful.
	 */
	lck = get_share_mode_lock(talloc_tos(), fsp->file_id,
				  conn->connectpath, smb_dname, &mtimespec);

	if (lck == NULL) {
		DEBUG(0, ("onefs_open_directory: Could not get share mode "
			  "lock for %s\n", smb_fname_str_dbg(smb_dname)));
		fd_close(fsp);
		file_free(req, fsp);
		return NT_STATUS_SHARING_VIOLATION;
	}

	if (lck->delete_on_close) {
		TALLOC_FREE(lck);
		fd_close(fsp);
		file_free(req, fsp);
		return NT_STATUS_DELETE_PENDING;
	}

	set_share_mode(lck, fsp, get_current_uid(conn),
		req ? req->mid : 0, NO_OPLOCK);

	/*
	 * For directories the delete on close bit at open time seems
	 * always to be honored on close... See test 19 in Samba4 BASE-DELETE.
	 */
	if (create_options & FILE_DELETE_ON_CLOSE) {
		status = can_set_delete_on_close(fsp, 0);
		if (!NT_STATUS_IS_OK(status) &&
		    !NT_STATUS_EQUAL(status, NT_STATUS_DIRECTORY_NOT_EMPTY)) {
			TALLOC_FREE(lck);
			fd_close(fsp);
			file_free(req, fsp);
			return status;
		}

		if (NT_STATUS_IS_OK(status)) {
			/* Note that here we set the *inital* delete on close flag,
			   not the regular one. The magic gets handled in close. */
			fsp->initial_delete_on_close = True;
		}
	}

	TALLOC_FREE(lck);

	if (pinfo) {
		*pinfo = info;
	}

	*result = fsp;
	return NT_STATUS_OK;
}

/*
 * Wrapper around onefs_open_file_ntcreate and onefs_open_directory.
 */
static NTSTATUS onefs_create_file_unixpath(connection_struct *conn,
					   struct smb_request *req,
					   struct smb_filename *smb_fname,
					   uint32_t access_mask,
					   uint32_t share_access,
					   uint32_t create_disposition,
					   uint32_t create_options,
					   uint32_t file_attributes,
					   uint32_t oplock_request,
					   uint64_t allocation_size,
					   uint32_t private_flags,
					   struct security_descriptor *sd,
					   struct ea_list *ea_list,
					   files_struct **result,
					   int *pinfo,
					   struct onefs_fsp_data *fsp_data)
{
	int info = FILE_WAS_OPENED;
	files_struct *base_fsp = NULL;
	files_struct *fsp = NULL;
	NTSTATUS status;

	DEBUG(10,("onefs_create_file_unixpath: access_mask = 0x%x "
		  "file_attributes = 0x%x, share_access = 0x%x, "
		  "create_disposition = 0x%x create_options = 0x%x "
		  "oplock_request = 0x%x private_flags = 0x%x "
		  "ea_list = 0x%p, sd = 0x%p, "
		  "fname = %s\n",
		  (unsigned int)access_mask,
		  (unsigned int)file_attributes,
		  (unsigned int)share_access,
		  (unsigned int)create_disposition,
		  (unsigned int)create_options,
		  (unsigned int)oplock_request,
		  (unsigned int)private_flags,
		  ea_list, sd, smb_fname_str_dbg(smb_fname)));

	if (create_options & FILE_OPEN_BY_FILE_ID) {
		status = NT_STATUS_NOT_SUPPORTED;
		goto fail;
	}

	if (create_options & NTCREATEX_OPTIONS_INVALID_PARAM_MASK) {
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	if (req == NULL) {
		SMB_ASSERT((oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK) ==
			    NO_OPLOCK);
		oplock_request |= INTERNAL_OPEN_ONLY;
	}

	if (lp_parm_bool(SNUM(conn), PARM_ONEFS_TYPE,
		PARM_IGNORE_SACLS, PARM_IGNORE_SACLS_DEFAULT)) {
		access_mask &= ~SYSTEM_SECURITY_ACCESS;
	}

	if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
	    && (access_mask & DELETE_ACCESS)
	    && !is_ntfs_stream_smb_fname(smb_fname)) {
		/*
		 * We can't open a file with DELETE access if any of the
		 * streams is open without FILE_SHARE_DELETE
		 */
		status = open_streams_for_delete(conn, smb_fname->base_name);

		if (!NT_STATUS_IS_OK(status)) {
			goto fail;
		}
	}

	if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
	    && is_ntfs_stream_smb_fname(smb_fname)) {
		uint32 base_create_disposition;
		struct smb_filename *smb_fname_base = NULL;

		if (create_options & FILE_DIRECTORY_FILE) {
			status = NT_STATUS_NOT_A_DIRECTORY;
			goto fail;
		}

		switch (create_disposition) {
		case FILE_OPEN:
			base_create_disposition = FILE_OPEN;
			break;
		default:
			base_create_disposition = FILE_OPEN_IF;
			break;
		}

		/* Create an smb_filename with stream_name == NULL. */
		status = create_synthetic_smb_fname(talloc_tos(),
						    smb_fname->base_name,
						    NULL, NULL,
						    &smb_fname_base);
		if (!NT_STATUS_IS_OK(status)) {
			goto fail;
		}

		if (SMB_VFS_STAT(conn, smb_fname_base) == -1) {
			DEBUG(10, ("Unable to stat stream: %s\n",
				   smb_fname_str_dbg(smb_fname_base)));
		}

		status = onefs_create_file_unixpath(
			conn,				/* conn */
			NULL,				/* req */
			smb_fname_base,			/* fname */
			SYNCHRONIZE_ACCESS,		/* access_mask */
			(FILE_SHARE_READ |
			    FILE_SHARE_WRITE |
			    FILE_SHARE_DELETE),		/* share_access */
			base_create_disposition,	/* create_disposition*/
			0,				/* create_options */
			file_attributes,		/* file_attributes */
			NO_OPLOCK,			/* oplock_request */
			0,				/* allocation_size */
			0,				/* private_flags */
			NULL,				/* sd */
			NULL,				/* ea_list */
			&base_fsp,			/* result */
			NULL,				/* pinfo */
			NULL);				/* fsp_data */

		TALLOC_FREE(smb_fname_base);

		if (!NT_STATUS_IS_OK(status)) {
			DEBUG(10, ("onefs_create_file_unixpath for base %s "
				   "failed: %s\n", smb_fname->base_name,
				   nt_errstr(status)));
			goto fail;
		}

		/*
		 * Testing against windows xp/2003/vista shows that oplocks
		 * can actually be requested and granted on streams (see the
		 * RAW-OPLOCK-STREAM1 smbtorture test).
		 */
		if ((oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK) !=
		     NO_OPLOCK) {
			DEBUG(5, ("Oplock(%d) being requested on a stream! "
				  "Ignoring oplock request: fname=%s\n",
				  oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK,
				smb_fname_str_dbg(smb_fname)));
			/* Request NO_OPLOCK instead. */
			oplock_request &= SAMBA_PRIVATE_OPLOCK_MASK;
		}
	}

	/* Covert generic bits in the security descriptor. */
	if (sd != NULL) {
		security_acl_map_generic(sd->dacl, &file_generic_mapping);
		security_acl_map_generic(sd->sacl, &file_generic_mapping);
	}

	/*
	 * If it's a request for a directory open, deal with it separately.
	 */

	if (create_options & FILE_DIRECTORY_FILE) {

		if (create_options & FILE_NON_DIRECTORY_FILE) {
			status = NT_STATUS_INVALID_PARAMETER;
			goto fail;
		}

		/* Can't open a temp directory. IFS kit test. */
		if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
		     (file_attributes & FILE_ATTRIBUTE_TEMPORARY)) {
			status = NT_STATUS_INVALID_PARAMETER;
			goto fail;
		}

		/*
		 * We will get a create directory here if the Win32
		 * app specified a security descriptor in the
		 * CreateDirectory() call.
		 */

		status = onefs_open_directory(
			conn,				/* conn */
			req,				/* req */
			smb_fname,			/* fname */
			access_mask,			/* access_mask */
			share_access,			/* share_access */
			create_disposition,		/* create_disposition*/
			create_options,			/* create_options */
			file_attributes,		/* file_attributes */
			sd,				/* sd */
			&fsp,				/* result */
			&info);				/* pinfo */
	} else {

		/*
		 * Ordinary file case.
		 */

		status = file_new(req, conn, &fsp);
		if(!NT_STATUS_IS_OK(status)) {
			goto fail;
		}

		/*
		 * We're opening the stream element of a base_fsp
		 * we already opened. Set up the base_fsp pointer.
		 */
		if (base_fsp) {
			fsp->base_fsp = base_fsp;
		}

		status = onefs_open_file_ntcreate(
			conn,				/* conn */
			req,				/* req */
			smb_fname,			/* fname */
			access_mask,			/* access_mask */
			share_access,			/* share_access */
			create_disposition,		/* create_disposition*/
			create_options,			/* create_options */
			file_attributes,		/* file_attributes */
			oplock_request,			/* oplock_request */
			sd,				/* sd */
			fsp,				/* result */
			&info,				/* pinfo */
			fsp_data);			/* fsp_data */

		if(!NT_STATUS_IS_OK(status)) {
			file_free(req, fsp);
			fsp = NULL;
		}

		if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {

			/* A stream open never opens a directory */

			if (base_fsp) {
				status = NT_STATUS_FILE_IS_A_DIRECTORY;
				goto fail;
			}

			/*
			 * Fail the open if it was explicitly a non-directory
			 * file.
			 */

			if (create_options & FILE_NON_DIRECTORY_FILE) {
				status = NT_STATUS_FILE_IS_A_DIRECTORY;
				goto fail;
			}

			create_options |= FILE_DIRECTORY_FILE;

			status = onefs_open_directory(
				conn,			/* conn */
				req,			/* req */
				smb_fname,		/* fname */
				access_mask,		/* access_mask */
				share_access,		/* share_access */
				create_disposition,	/* create_disposition*/
				create_options,		/* create_options */
				file_attributes,	/* file_attributes */
				sd,			/* sd */
				&fsp,			/* result */
				&info);			/* pinfo */
		}
	}

	if (!NT_STATUS_IS_OK(status)) {
		goto fail;
	}

	fsp->base_fsp = base_fsp;

	SMB_ASSERT(fsp);

	if ((ea_list != NULL) && (info == FILE_WAS_CREATED)) {
		status = set_ea(conn, fsp, smb_fname, ea_list);
		if (!NT_STATUS_IS_OK(status)) {
			goto fail;
		}
	}

	if (!fsp->is_directory && S_ISDIR(smb_fname->st.st_ex_mode)) {
		status = NT_STATUS_ACCESS_DENIED;
		goto fail;
	}

	/* Save the requested allocation size. */
	if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
		if (allocation_size
		    && (allocation_size > smb_fname->st.st_ex_size)) {
			fsp->initial_allocation_size = smb_roundup(
				fsp->conn, allocation_size);
			if (fsp->is_directory) {
				/* Can't set allocation size on a directory. */
				status = NT_STATUS_ACCESS_DENIED;
				goto fail;
			}
			if (vfs_allocate_file_space(
				    fsp, fsp->initial_allocation_size) == -1) {
				status = NT_STATUS_DISK_FULL;
				goto fail;
			}
		} else {
			fsp->initial_allocation_size = smb_roundup(
				fsp->conn, (uint64_t)smb_fname->st.st_ex_size);
		}
	}

	DEBUG(10, ("onefs_create_file_unixpath: info=%d\n", info));

	*result = fsp;
	if (pinfo != NULL) {
		*pinfo = info;
	}
	if ((fsp->fh != NULL) && (fsp->fh->fd != -1)) {
		SMB_VFS_FSTAT(fsp, &smb_fname->st);
	}
	return NT_STATUS_OK;

 fail:
	DEBUG(10, ("onefs_create_file_unixpath: %s\n", nt_errstr(status)));

	if (fsp != NULL) {
		if (base_fsp && fsp->base_fsp == base_fsp) {
			/*
			 * The close_file below will close
			 * fsp->base_fsp.
			 */
			base_fsp = NULL;
		}
		close_file(req, fsp, ERROR_CLOSE);
		fsp = NULL;
	}
	if (base_fsp != NULL) {
		close_file(req, base_fsp, ERROR_CLOSE);
		base_fsp = NULL;
	}
	return status;
}

static void destroy_onefs_fsp_data(void *p_data)
{
	struct onefs_fsp_data *fsp_data = (struct onefs_fsp_data *)p_data;

	destroy_onefs_callback_record(fsp_data->oplock_callback_id);
}

/**
 * SMB_VFS_CREATE_FILE interface to onefs.
 */
NTSTATUS onefs_create_file(vfs_handle_struct *handle,
			   struct smb_request *req,
			   uint16_t root_dir_fid,
			   struct smb_filename *smb_fname,
			   uint32_t access_mask,
			   uint32_t share_access,
			   uint32_t create_disposition,
			   uint32_t create_options,
			   uint32_t file_attributes,
			   uint32_t oplock_request,
			   uint64_t allocation_size,
			   uint32_t private_flags,
			   struct security_descriptor *sd,
			   struct ea_list *ea_list,
			   files_struct **result,
			   int *pinfo)
{
	connection_struct *conn = handle->conn;
	struct onefs_fsp_data fsp_data = {};
	int info = FILE_WAS_OPENED;
	files_struct *fsp = NULL;
	NTSTATUS status;

	DEBUG(10,("onefs_create_file: access_mask = 0x%x "
		  "file_attributes = 0x%x, share_access = 0x%x, "
		  "create_disposition = 0x%x create_options = 0x%x "
		  "oplock_request = 0x%x private_flags = 0x%x"
		  "root_dir_fid = 0x%x, ea_list = 0x%p, sd = 0x%p, "
		  "fname = %s\n",
		  (unsigned int)access_mask,
		  (unsigned int)file_attributes,
		  (unsigned int)share_access,
		  (unsigned int)create_disposition,
		  (unsigned int)create_options,
		  (unsigned int)oplock_request,
		  (unsigned int)private_flags,
		  (unsigned int)root_dir_fid,
		  ea_list, sd, smb_fname_str_dbg(smb_fname)));

	/* Get the file name if root_dir_fid was specified. */
	if (root_dir_fid != 0) {
		struct smb_filename *smb_fname_out = NULL;
		status = get_relative_fid_filename(conn, req, root_dir_fid,
						   smb_fname, &smb_fname_out);
		if (!NT_STATUS_IS_OK(status)) {
			goto fail;
		}
		smb_fname = smb_fname_out;
	}

	/* All file access must go through check_name() */
	status = check_name(conn, smb_fname->base_name);
	if (!NT_STATUS_IS_OK(status)) {
		goto fail;
	}

	if (is_ntfs_stream_smb_fname(smb_fname)) {
		if (!(conn->fs_capabilities & FILE_NAMED_STREAMS)) {
			status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
			goto fail;
		}

		if (is_ntfs_default_stream_smb_fname(smb_fname)) {
			int ret;
			smb_fname->stream_name = NULL;
			/* We have to handle this error here. */
			if (create_options & FILE_DIRECTORY_FILE) {
				status = NT_STATUS_NOT_A_DIRECTORY;
				goto fail;
			}
			if (lp_posix_pathnames()) {
				ret = SMB_VFS_LSTAT(conn, smb_fname);
			} else {
				ret = SMB_VFS_STAT(conn, smb_fname);
			}

			if (ret == 0 && VALID_STAT_OF_DIR(smb_fname->st)) {
				status = NT_STATUS_FILE_IS_A_DIRECTORY;
				goto fail;
			}
		}
	}

	status = onefs_create_file_unixpath(
		conn,					/* conn */
		req,					/* req */
		smb_fname,				/* fname */
		access_mask,				/* access_mask */
		share_access,				/* share_access */
		create_disposition,			/* create_disposition*/
		create_options,				/* create_options */
		file_attributes,			/* file_attributes */
		oplock_request,				/* oplock_request */
		allocation_size,			/* allocation_size */
		private_flags,
		sd,					/* sd */
		ea_list,				/* ea_list */
		&fsp,					/* result */
		&info,					/* pinfo */
		&fsp_data);				/* psbuf */

	if (!NT_STATUS_IS_OK(status)) {
		goto fail;
	}

	DEBUG(10, ("onefs_create_file: info=%d\n", info));

	/*
	 * Setup private onefs_fsp_data.  Currently the private data struct is
	 * only used to store the oplock_callback_id so that when the file is
	 * closed, the onefs_callback_record can be properly cleaned up in the
	 * oplock_onefs sub-system.
	 */
	if (fsp) {
		struct onefs_fsp_data *fsp_data_tmp = NULL;
		fsp_data_tmp = (struct onefs_fsp_data *)
		    VFS_ADD_FSP_EXTENSION(handle, fsp, struct onefs_fsp_data,
			&destroy_onefs_fsp_data);

		if (fsp_data_tmp == NULL) {
			status = NT_STATUS_NO_MEMORY;
			goto fail;
		}

		*fsp_data_tmp = fsp_data;
	}

	*result = fsp;
	if (pinfo != NULL) {
		*pinfo = info;
	}
	return NT_STATUS_OK;

 fail:
	DEBUG(10, ("onefs_create_file: %s\n", nt_errstr(status)));

	if (fsp != NULL) {
		close_file(req, fsp, ERROR_CLOSE);
		fsp = NULL;
	}
	return status;
}