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1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* | |
3 | * Copyright (C) 2018 Samsung Electronics Co., Ltd. | |
4 | */ | |
5 | ||
6 | #ifndef __SMB_COMMON_H__ | |
7 | #define __SMB_COMMON_H__ | |
8 | ||
9 | #include <linux/kernel.h> | |
10 | ||
11 | #include "glob.h" | |
12 | #include "nterr.h" | |
4355a8fd | 13 | #include "../smbfs_common/smb2pdu.h" |
e2f34481 NJ |
14 | #include "smb2pdu.h" |
15 | ||
16 | /* ksmbd's Specific ERRNO */ | |
17 | #define ESHARE 50000 | |
18 | ||
19 | #define SMB1_PROT 0 | |
20 | #define SMB2_PROT 1 | |
21 | #define SMB21_PROT 2 | |
22 | /* multi-protocol negotiate request */ | |
23 | #define SMB2X_PROT 3 | |
24 | #define SMB30_PROT 4 | |
25 | #define SMB302_PROT 5 | |
26 | #define SMB311_PROT 6 | |
27 | #define BAD_PROT 0xFFFF | |
28 | ||
29 | #define SMB1_VERSION_STRING "1.0" | |
30 | #define SMB20_VERSION_STRING "2.0" | |
31 | #define SMB21_VERSION_STRING "2.1" | |
32 | #define SMB30_VERSION_STRING "3.0" | |
33 | #define SMB302_VERSION_STRING "3.02" | |
34 | #define SMB311_VERSION_STRING "3.1.1" | |
35 | ||
64b39f4a | 36 | #define SMB_ECHO_INTERVAL (60 * HZ) |
e2f34481 NJ |
37 | |
38 | #define CIFS_DEFAULT_IOSIZE (64 * 1024) | |
39 | #define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */ | |
40 | ||
36399990 NJ |
41 | #define MAX_STREAM_PROT_LEN 0x00FFFFFF |
42 | ||
e2f34481 NJ |
43 | /* Responses when opening a file. */ |
44 | #define F_SUPERSEDED 0 | |
45 | #define F_OPENED 1 | |
46 | #define F_CREATED 2 | |
47 | #define F_OVERWRITTEN 3 | |
48 | ||
49 | /* | |
50 | * File Attribute flags | |
51 | */ | |
e2f34481 NJ |
52 | #define ATTR_POSIX_SEMANTICS 0x01000000 |
53 | #define ATTR_BACKUP_SEMANTICS 0x02000000 | |
54 | #define ATTR_DELETE_ON_CLOSE 0x04000000 | |
55 | #define ATTR_SEQUENTIAL_SCAN 0x08000000 | |
56 | #define ATTR_RANDOM_ACCESS 0x10000000 | |
57 | #define ATTR_NO_BUFFERING 0x20000000 | |
58 | #define ATTR_WRITE_THROUGH 0x80000000 | |
59 | ||
e2f34481 NJ |
60 | /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */ |
61 | #define FILE_SUPPORTS_SPARSE_VDL 0x10000000 /* faster nonsparse extend */ | |
62 | #define FILE_SUPPORTS_BLOCK_REFCOUNTING 0x08000000 /* allow ioctl dup extents */ | |
63 | #define FILE_SUPPORT_INTEGRITY_STREAMS 0x04000000 | |
64 | #define FILE_SUPPORTS_USN_JOURNAL 0x02000000 | |
65 | #define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000 | |
66 | #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000 | |
67 | #define FILE_SUPPORTS_HARD_LINKS 0x00400000 | |
68 | #define FILE_SUPPORTS_TRANSACTIONS 0x00200000 | |
69 | #define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000 | |
70 | #define FILE_READ_ONLY_VOLUME 0x00080000 | |
71 | #define FILE_NAMED_STREAMS 0x00040000 | |
72 | #define FILE_SUPPORTS_ENCRYPTION 0x00020000 | |
73 | #define FILE_SUPPORTS_OBJECT_IDS 0x00010000 | |
74 | #define FILE_VOLUME_IS_COMPRESSED 0x00008000 | |
75 | #define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100 | |
76 | #define FILE_SUPPORTS_REPARSE_POINTS 0x00000080 | |
77 | #define FILE_SUPPORTS_SPARSE_FILES 0x00000040 | |
78 | #define FILE_VOLUME_QUOTAS 0x00000020 | |
79 | #define FILE_FILE_COMPRESSION 0x00000010 | |
80 | #define FILE_PERSISTENT_ACLS 0x00000008 | |
81 | #define FILE_UNICODE_ON_DISK 0x00000004 | |
82 | #define FILE_CASE_PRESERVED_NAMES 0x00000002 | |
83 | #define FILE_CASE_SENSITIVE_SEARCH 0x00000001 | |
84 | ||
85 | #define FILE_READ_DATA 0x00000001 /* Data can be read from the file */ | |
86 | #define FILE_WRITE_DATA 0x00000002 /* Data can be written to the file */ | |
87 | #define FILE_APPEND_DATA 0x00000004 /* Data can be appended to the file */ | |
88 | #define FILE_READ_EA 0x00000008 /* Extended attributes associated */ | |
89 | /* with the file can be read */ | |
90 | #define FILE_WRITE_EA 0x00000010 /* Extended attributes associated */ | |
91 | /* with the file can be written */ | |
92 | #define FILE_EXECUTE 0x00000020 /*Data can be read into memory from */ | |
93 | /* the file using system paging I/O */ | |
94 | #define FILE_DELETE_CHILD 0x00000040 | |
95 | #define FILE_READ_ATTRIBUTES 0x00000080 /* Attributes associated with the */ | |
96 | /* file can be read */ | |
97 | #define FILE_WRITE_ATTRIBUTES 0x00000100 /* Attributes associated with the */ | |
98 | /* file can be written */ | |
99 | #define DELETE 0x00010000 /* The file can be deleted */ | |
100 | #define READ_CONTROL 0x00020000 /* The access control list and */ | |
101 | /* ownership associated with the */ | |
102 | /* file can be read */ | |
103 | #define WRITE_DAC 0x00040000 /* The access control list and */ | |
104 | /* ownership associated with the */ | |
105 | /* file can be written. */ | |
106 | #define WRITE_OWNER 0x00080000 /* Ownership information associated */ | |
107 | /* with the file can be written */ | |
108 | #define SYNCHRONIZE 0x00100000 /* The file handle can waited on to */ | |
109 | /* synchronize with the completion */ | |
110 | /* of an input/output request */ | |
111 | #define GENERIC_ALL 0x10000000 | |
112 | #define GENERIC_EXECUTE 0x20000000 | |
113 | #define GENERIC_WRITE 0x40000000 | |
114 | #define GENERIC_READ 0x80000000 | |
115 | /* In summary - Relevant file */ | |
116 | /* access flags from CIFS are */ | |
117 | /* file_read_data, file_write_data */ | |
118 | /* file_execute, file_read_attributes*/ | |
119 | /* write_dac, and delete. */ | |
120 | ||
e2f34481 NJ |
121 | #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \ |
122 | | FILE_READ_ATTRIBUTES \ | |
123 | | DELETE | READ_CONTROL | WRITE_DAC \ | |
124 | | WRITE_OWNER | SYNCHRONIZE) | |
125 | #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \ | |
126 | | FILE_WRITE_EA \ | |
127 | | FILE_DELETE_CHILD \ | |
128 | | FILE_WRITE_ATTRIBUTES \ | |
129 | | DELETE | READ_CONTROL | WRITE_DAC \ | |
130 | | WRITE_OWNER | SYNCHRONIZE) | |
131 | #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \ | |
132 | | FILE_READ_ATTRIBUTES \ | |
133 | | FILE_WRITE_ATTRIBUTES \ | |
134 | | DELETE | READ_CONTROL | WRITE_DAC \ | |
135 | | WRITE_OWNER | SYNCHRONIZE) | |
136 | ||
137 | #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \ | |
138 | | READ_CONTROL | SYNCHRONIZE) | |
139 | ||
140 | /* generic flags for file open */ | |
141 | #define GENERIC_READ_FLAGS (READ_CONTROL | FILE_READ_DATA | \ | |
142 | FILE_READ_ATTRIBUTES | \ | |
143 | FILE_READ_EA | SYNCHRONIZE) | |
144 | ||
145 | #define GENERIC_WRITE_FLAGS (READ_CONTROL | FILE_WRITE_DATA | \ | |
146 | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA | \ | |
147 | FILE_APPEND_DATA | SYNCHRONIZE) | |
148 | ||
149 | #define GENERIC_EXECUTE_FLAGS (READ_CONTROL | FILE_EXECUTE | \ | |
150 | FILE_READ_ATTRIBUTES | SYNCHRONIZE) | |
151 | ||
152 | #define GENERIC_ALL_FLAGS (DELETE | READ_CONTROL | WRITE_DAC | \ | |
153 | WRITE_OWNER | SYNCHRONIZE | FILE_READ_DATA | \ | |
154 | FILE_WRITE_DATA | FILE_APPEND_DATA | \ | |
155 | FILE_READ_EA | FILE_WRITE_EA | \ | |
156 | FILE_EXECUTE | FILE_DELETE_CHILD | \ | |
157 | FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES) | |
158 | ||
159 | #define SMB1_PROTO_NUMBER cpu_to_le32(0x424d53ff) | |
18a015bc | 160 | #define SMB_COM_NEGOTIATE 0x72 |
e2f34481 | 161 | #define SMB1_CLIENT_GUID_SIZE (16) |
39b291b8 NJ |
162 | |
163 | #define SMBFLG_RESPONSE 0x80 /* this PDU is a response from server */ | |
164 | ||
165 | #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40) | |
166 | #define SMBFLG2_EXT_SEC cpu_to_le16(0x800) | |
167 | #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000) | |
168 | #define SMBFLG2_UNICODE cpu_to_le16(0x8000) | |
169 | ||
e2f34481 NJ |
170 | struct smb_hdr { |
171 | __be32 smb_buf_length; | |
172 | __u8 Protocol[4]; | |
173 | __u8 Command; | |
174 | union { | |
175 | struct { | |
176 | __u8 ErrorClass; | |
177 | __u8 Reserved; | |
178 | __le16 Error; | |
179 | } __packed DosError; | |
180 | __le32 CifsError; | |
181 | } __packed Status; | |
182 | __u8 Flags; | |
183 | __le16 Flags2; /* note: le */ | |
184 | __le16 PidHigh; | |
185 | union { | |
186 | struct { | |
187 | __le32 SequenceNumber; /* le */ | |
188 | __u32 Reserved; /* zero */ | |
189 | } __packed Sequence; | |
190 | __u8 SecuritySignature[8]; /* le */ | |
191 | } __packed Signature; | |
192 | __u8 pad[2]; | |
193 | __le16 Tid; | |
194 | __le16 Pid; | |
195 | __le16 Uid; | |
196 | __le16 Mid; | |
197 | __u8 WordCount; | |
198 | } __packed; | |
199 | ||
200 | struct smb_negotiate_req { | |
201 | struct smb_hdr hdr; /* wct = 0 */ | |
202 | __le16 ByteCount; | |
203 | unsigned char DialectsArray[1]; | |
204 | } __packed; | |
205 | ||
206 | struct smb_negotiate_rsp { | |
207 | struct smb_hdr hdr; /* wct = 17 */ | |
208 | __le16 DialectIndex; /* 0xFFFF = no dialect acceptable */ | |
e2f34481 | 209 | __le16 ByteCount; |
e2f34481 NJ |
210 | } __packed; |
211 | ||
212 | struct filesystem_attribute_info { | |
213 | __le32 Attributes; | |
214 | __le32 MaxPathNameComponentLength; | |
215 | __le32 FileSystemNameLen; | |
216 | __le16 FileSystemName[1]; /* do not have to save this - get subset? */ | |
217 | } __packed; | |
218 | ||
219 | struct filesystem_device_info { | |
220 | __le32 DeviceType; | |
221 | __le32 DeviceCharacteristics; | |
222 | } __packed; /* device info level 0x104 */ | |
223 | ||
224 | struct filesystem_vol_info { | |
225 | __le64 VolumeCreationTime; | |
226 | __le32 SerialNumber; | |
227 | __le32 VolumeLabelSize; | |
228 | __le16 Reserved; | |
229 | __le16 VolumeLabel[1]; | |
230 | } __packed; | |
231 | ||
232 | struct filesystem_info { | |
233 | __le64 TotalAllocationUnits; | |
234 | __le64 FreeAllocationUnits; | |
235 | __le32 SectorsPerAllocationUnit; | |
236 | __le32 BytesPerSector; | |
237 | } __packed; /* size info, level 0x103 */ | |
238 | ||
239 | #define EXTENDED_INFO_MAGIC 0x43667364 /* Cfsd */ | |
240 | #define STRING_LENGTH 28 | |
241 | ||
242 | struct fs_extended_info { | |
243 | __le32 magic; | |
244 | __le32 version; | |
245 | __le32 release; | |
246 | __u64 rel_date; | |
247 | char version_string[STRING_LENGTH]; | |
248 | } __packed; | |
249 | ||
250 | struct object_id_info { | |
251 | char objid[16]; | |
252 | struct fs_extended_info extended_info; | |
253 | } __packed; | |
254 | ||
255 | struct file_directory_info { | |
256 | __le32 NextEntryOffset; | |
257 | __u32 FileIndex; | |
258 | __le64 CreationTime; | |
259 | __le64 LastAccessTime; | |
260 | __le64 LastWriteTime; | |
261 | __le64 ChangeTime; | |
262 | __le64 EndOfFile; | |
263 | __le64 AllocationSize; | |
264 | __le32 ExtFileAttributes; | |
265 | __le32 FileNameLength; | |
d272e01f | 266 | char FileName[]; |
e2f34481 NJ |
267 | } __packed; /* level 0x101 FF resp data */ |
268 | ||
269 | struct file_names_info { | |
270 | __le32 NextEntryOffset; | |
271 | __u32 FileIndex; | |
272 | __le32 FileNameLength; | |
d272e01f | 273 | char FileName[]; |
e2f34481 NJ |
274 | } __packed; /* level 0xc FF resp data */ |
275 | ||
276 | struct file_full_directory_info { | |
277 | __le32 NextEntryOffset; | |
278 | __u32 FileIndex; | |
279 | __le64 CreationTime; | |
280 | __le64 LastAccessTime; | |
281 | __le64 LastWriteTime; | |
282 | __le64 ChangeTime; | |
283 | __le64 EndOfFile; | |
284 | __le64 AllocationSize; | |
285 | __le32 ExtFileAttributes; | |
286 | __le32 FileNameLength; | |
287 | __le32 EaSize; | |
d272e01f | 288 | char FileName[]; |
e2f34481 NJ |
289 | } __packed; /* level 0x102 FF resp */ |
290 | ||
291 | struct file_both_directory_info { | |
292 | __le32 NextEntryOffset; | |
293 | __u32 FileIndex; | |
294 | __le64 CreationTime; | |
295 | __le64 LastAccessTime; | |
296 | __le64 LastWriteTime; | |
297 | __le64 ChangeTime; | |
298 | __le64 EndOfFile; | |
299 | __le64 AllocationSize; | |
300 | __le32 ExtFileAttributes; | |
301 | __le32 FileNameLength; | |
302 | __le32 EaSize; /* length of the xattrs */ | |
303 | __u8 ShortNameLength; | |
304 | __u8 Reserved; | |
305 | __u8 ShortName[24]; | |
d272e01f | 306 | char FileName[]; |
e2f34481 NJ |
307 | } __packed; /* level 0x104 FFrsp data */ |
308 | ||
309 | struct file_id_both_directory_info { | |
310 | __le32 NextEntryOffset; | |
311 | __u32 FileIndex; | |
312 | __le64 CreationTime; | |
313 | __le64 LastAccessTime; | |
314 | __le64 LastWriteTime; | |
315 | __le64 ChangeTime; | |
316 | __le64 EndOfFile; | |
317 | __le64 AllocationSize; | |
318 | __le32 ExtFileAttributes; | |
319 | __le32 FileNameLength; | |
320 | __le32 EaSize; /* length of the xattrs */ | |
321 | __u8 ShortNameLength; | |
322 | __u8 Reserved; | |
323 | __u8 ShortName[24]; | |
324 | __le16 Reserved2; | |
325 | __le64 UniqueId; | |
d272e01f | 326 | char FileName[]; |
e2f34481 NJ |
327 | } __packed; |
328 | ||
329 | struct file_id_full_dir_info { | |
330 | __le32 NextEntryOffset; | |
331 | __u32 FileIndex; | |
332 | __le64 CreationTime; | |
333 | __le64 LastAccessTime; | |
334 | __le64 LastWriteTime; | |
335 | __le64 ChangeTime; | |
336 | __le64 EndOfFile; | |
337 | __le64 AllocationSize; | |
338 | __le32 ExtFileAttributes; | |
339 | __le32 FileNameLength; | |
340 | __le32 EaSize; /* EA size */ | |
341 | __le32 Reserved; | |
342 | __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/ | |
d272e01f | 343 | char FileName[]; |
e2f34481 NJ |
344 | } __packed; /* level 0x105 FF rsp data */ |
345 | ||
346 | struct smb_version_values { | |
347 | char *version_string; | |
348 | __u16 protocol_id; | |
349 | __le16 lock_cmd; | |
350 | __u32 capabilities; | |
351 | __u32 max_read_size; | |
352 | __u32 max_write_size; | |
353 | __u32 max_trans_size; | |
004443b3 | 354 | __u32 max_credits; |
e2f34481 NJ |
355 | __u32 large_lock_type; |
356 | __u32 exclusive_lock_type; | |
357 | __u32 shared_lock_type; | |
358 | __u32 unlock_lock_type; | |
359 | size_t header_size; | |
360 | size_t max_header_size; | |
361 | size_t read_rsp_size; | |
362 | unsigned int cap_unix; | |
363 | unsigned int cap_nt_find; | |
364 | unsigned int cap_large_files; | |
365 | __u16 signing_enabled; | |
366 | __u16 signing_required; | |
367 | size_t create_lease_size; | |
368 | size_t create_durable_size; | |
369 | size_t create_durable_v2_size; | |
370 | size_t create_mxac_size; | |
371 | size_t create_disk_id_size; | |
372 | size_t create_posix_size; | |
373 | }; | |
374 | ||
375 | struct filesystem_posix_info { | |
376 | /* For undefined recommended transfer size return -1 in that field */ | |
377 | __le32 OptimalTransferSize; /* bsize on some os, iosize on other os */ | |
378 | __le32 BlockSize; | |
379 | /* The next three fields are in terms of the block size. | |
380 | * (above). If block size is unknown, 4096 would be a | |
381 | * reasonable block size for a server to report. | |
382 | * Note that returning the blocks/blocksavail removes need | |
383 | * to make a second call (to QFSInfo level 0x103 to get this info. | |
384 | * UserBlockAvail is typically less than or equal to BlocksAvail, | |
385 | * if no distinction is made return the same value in each | |
386 | */ | |
387 | __le64 TotalBlocks; | |
388 | __le64 BlocksAvail; /* bfree */ | |
389 | __le64 UserBlocksAvail; /* bavail */ | |
390 | /* For undefined Node fields or FSID return -1 */ | |
391 | __le64 TotalFileNodes; | |
392 | __le64 FreeFileNodes; | |
393 | __le64 FileSysIdentifier; /* fsid */ | |
394 | /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */ | |
395 | /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */ | |
396 | } __packed; | |
397 | ||
398 | struct smb_version_ops { | |
fc2d1b58 | 399 | u16 (*get_cmd_val)(struct ksmbd_work *swork); |
e2f34481 NJ |
400 | int (*init_rsp_hdr)(struct ksmbd_work *swork); |
401 | void (*set_rsp_status)(struct ksmbd_work *swork, __le32 err); | |
402 | int (*allocate_rsp_buf)(struct ksmbd_work *work); | |
403 | int (*set_rsp_credits)(struct ksmbd_work *work); | |
404 | int (*check_user_session)(struct ksmbd_work *work); | |
405 | int (*get_ksmbd_tcon)(struct ksmbd_work *work); | |
406 | bool (*is_sign_req)(struct ksmbd_work *work, unsigned int command); | |
407 | int (*check_sign_req)(struct ksmbd_work *work); | |
408 | void (*set_sign_rsp)(struct ksmbd_work *work); | |
f5a544e3 | 409 | int (*generate_signingkey)(struct ksmbd_session *sess, struct ksmbd_conn *conn); |
af7c39d9 | 410 | int (*generate_encryptionkey)(struct ksmbd_conn *conn, struct ksmbd_session *sess); |
f4228b67 | 411 | bool (*is_transform_hdr)(void *buf); |
e2f34481 NJ |
412 | int (*decrypt_req)(struct ksmbd_work *work); |
413 | int (*encrypt_resp)(struct ksmbd_work *work); | |
414 | }; | |
415 | ||
416 | struct smb_version_cmds { | |
417 | int (*proc)(struct ksmbd_work *swork); | |
418 | }; | |
419 | ||
e2f34481 NJ |
420 | int ksmbd_min_protocol(void); |
421 | int ksmbd_max_protocol(void); | |
422 | ||
423 | int ksmbd_lookup_protocol_idx(char *str); | |
424 | ||
425 | int ksmbd_verify_smb_message(struct ksmbd_work *work); | |
426 | bool ksmbd_smb_request(struct ksmbd_conn *conn); | |
427 | ||
428 | int ksmbd_lookup_dialect_by_id(__le16 *cli_dialects, __le16 dialects_count); | |
429 | ||
dc8289f9 | 430 | void ksmbd_init_smb_server(struct ksmbd_work *work); |
e2f34481 | 431 | |
e2f34481 NJ |
432 | struct ksmbd_kstat; |
433 | int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, | |
434 | int info_level, | |
435 | struct ksmbd_file *dir, | |
436 | struct ksmbd_dir_info *d_info, | |
437 | char *search_pattern, | |
438 | int (*fn)(struct ksmbd_conn *, | |
439 | int, | |
440 | struct ksmbd_dir_info *, | |
441 | struct ksmbd_kstat *)); | |
442 | ||
443 | int ksmbd_extract_shortname(struct ksmbd_conn *conn, | |
444 | const char *longname, | |
445 | char *shortname); | |
446 | ||
447 | int ksmbd_smb_negotiate_common(struct ksmbd_work *work, unsigned int command); | |
448 | ||
449 | int ksmbd_smb_check_shared_mode(struct file *filp, struct ksmbd_file *curr_fp); | |
450 | int ksmbd_override_fsids(struct ksmbd_work *work); | |
451 | void ksmbd_revert_fsids(struct ksmbd_work *work); | |
452 | ||
453 | unsigned int ksmbd_server_side_copy_max_chunk_count(void); | |
454 | unsigned int ksmbd_server_side_copy_max_chunk_size(void); | |
455 | unsigned int ksmbd_server_side_copy_max_total_size(void); | |
456 | bool is_asterisk(char *p); | |
457 | __le32 smb_map_generic_desired_access(__le32 daccess); | |
458 | ||
459 | static inline unsigned int get_rfc1002_len(void *buf) | |
460 | { | |
461 | return be32_to_cpu(*((__be32 *)buf)) & 0xffffff; | |
462 | } | |
463 | ||
464 | static inline void inc_rfc1001_len(void *buf, int count) | |
465 | { | |
466 | be32_add_cpu((__be32 *)buf, count); | |
467 | } | |
468 | #endif /* __SMB_COMMON_H__ */ |