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Commit | Line | Data |
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1080ef75 SF |
1 | /* |
2 | * SMB2 version specific operations | |
3 | * | |
4 | * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License v2 as published | |
8 | * by the Free Software Foundation. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
13 | * the GNU Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public License | |
16 | * along with this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
3a3bab50 | 20 | #include <linux/pagemap.h> |
6fc05c25 | 21 | #include <linux/vfs.h> |
f29ebb47 | 22 | #include <linux/falloc.h> |
026e93dc | 23 | #include <linux/scatterlist.h> |
4fa8e504 | 24 | #include <linux/uuid.h> |
026e93dc | 25 | #include <crypto/aead.h> |
1080ef75 | 26 | #include "cifsglob.h" |
2dc7e1c0 PS |
27 | #include "smb2pdu.h" |
28 | #include "smb2proto.h" | |
28ea5290 PS |
29 | #include "cifsproto.h" |
30 | #include "cifs_debug.h" | |
b42bf888 | 31 | #include "cifs_unicode.h" |
2e44b288 | 32 | #include "smb2status.h" |
6fc05c25 | 33 | #include "smb2glob.h" |
834170c8 | 34 | #include "cifs_ioctl.h" |
28ea5290 PS |
35 | |
36 | static int | |
37 | change_conf(struct TCP_Server_Info *server) | |
38 | { | |
39 | server->credits += server->echo_credits + server->oplock_credits; | |
40 | server->oplock_credits = server->echo_credits = 0; | |
41 | switch (server->credits) { | |
42 | case 0: | |
43 | return -1; | |
44 | case 1: | |
45 | server->echoes = false; | |
46 | server->oplocks = false; | |
f96637be | 47 | cifs_dbg(VFS, "disabling echoes and oplocks\n"); |
28ea5290 PS |
48 | break; |
49 | case 2: | |
50 | server->echoes = true; | |
51 | server->oplocks = false; | |
52 | server->echo_credits = 1; | |
f96637be | 53 | cifs_dbg(FYI, "disabling oplocks\n"); |
28ea5290 PS |
54 | break; |
55 | default: | |
56 | server->echoes = true; | |
e0ddde9d SF |
57 | if (enable_oplocks) { |
58 | server->oplocks = true; | |
59 | server->oplock_credits = 1; | |
60 | } else | |
61 | server->oplocks = false; | |
62 | ||
28ea5290 | 63 | server->echo_credits = 1; |
28ea5290 PS |
64 | } |
65 | server->credits -= server->echo_credits + server->oplock_credits; | |
66 | return 0; | |
67 | } | |
68 | ||
69 | static void | |
70 | smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add, | |
71 | const int optype) | |
72 | { | |
73 | int *val, rc = 0; | |
74 | spin_lock(&server->req_lock); | |
75 | val = server->ops->get_credits_field(server, optype); | |
76 | *val += add; | |
141891f4 SF |
77 | if (*val > 65000) { |
78 | *val = 65000; /* Don't get near 64K credits, avoid srv bugs */ | |
79 | printk_once(KERN_WARNING "server overflowed SMB3 credits\n"); | |
80 | } | |
28ea5290 | 81 | server->in_flight--; |
ec2e4523 | 82 | if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP) |
28ea5290 | 83 | rc = change_conf(server); |
983c88a4 PS |
84 | /* |
85 | * Sometimes server returns 0 credits on oplock break ack - we need to | |
86 | * rebalance credits in this case. | |
87 | */ | |
88 | else if (server->in_flight > 0 && server->oplock_credits == 0 && | |
89 | server->oplocks) { | |
90 | if (server->credits > 1) { | |
91 | server->credits--; | |
92 | server->oplock_credits++; | |
93 | } | |
94 | } | |
28ea5290 PS |
95 | spin_unlock(&server->req_lock); |
96 | wake_up(&server->request_q); | |
97 | if (rc) | |
98 | cifs_reconnect(server); | |
99 | } | |
100 | ||
101 | static void | |
102 | smb2_set_credits(struct TCP_Server_Info *server, const int val) | |
103 | { | |
104 | spin_lock(&server->req_lock); | |
105 | server->credits = val; | |
106 | spin_unlock(&server->req_lock); | |
107 | } | |
108 | ||
109 | static int * | |
110 | smb2_get_credits_field(struct TCP_Server_Info *server, const int optype) | |
111 | { | |
112 | switch (optype) { | |
113 | case CIFS_ECHO_OP: | |
114 | return &server->echo_credits; | |
115 | case CIFS_OBREAK_OP: | |
116 | return &server->oplock_credits; | |
117 | default: | |
118 | return &server->credits; | |
119 | } | |
120 | } | |
121 | ||
122 | static unsigned int | |
123 | smb2_get_credits(struct mid_q_entry *mid) | |
124 | { | |
31473fc4 PS |
125 | struct smb2_sync_hdr *shdr = get_sync_hdr(mid->resp_buf); |
126 | ||
127 | return le16_to_cpu(shdr->CreditRequest); | |
28ea5290 | 128 | } |
2dc7e1c0 | 129 | |
cb7e9eab PS |
130 | static int |
131 | smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size, | |
132 | unsigned int *num, unsigned int *credits) | |
133 | { | |
134 | int rc = 0; | |
135 | unsigned int scredits; | |
136 | ||
137 | spin_lock(&server->req_lock); | |
138 | while (1) { | |
139 | if (server->credits <= 0) { | |
140 | spin_unlock(&server->req_lock); | |
141 | cifs_num_waiters_inc(server); | |
142 | rc = wait_event_killable(server->request_q, | |
143 | has_credits(server, &server->credits)); | |
144 | cifs_num_waiters_dec(server); | |
145 | if (rc) | |
146 | return rc; | |
147 | spin_lock(&server->req_lock); | |
148 | } else { | |
149 | if (server->tcpStatus == CifsExiting) { | |
150 | spin_unlock(&server->req_lock); | |
151 | return -ENOENT; | |
152 | } | |
153 | ||
154 | scredits = server->credits; | |
155 | /* can deadlock with reopen */ | |
156 | if (scredits == 1) { | |
157 | *num = SMB2_MAX_BUFFER_SIZE; | |
158 | *credits = 0; | |
159 | break; | |
160 | } | |
161 | ||
162 | /* leave one credit for a possible reopen */ | |
163 | scredits--; | |
164 | *num = min_t(unsigned int, size, | |
165 | scredits * SMB2_MAX_BUFFER_SIZE); | |
166 | ||
167 | *credits = DIV_ROUND_UP(*num, SMB2_MAX_BUFFER_SIZE); | |
168 | server->credits -= *credits; | |
169 | server->in_flight++; | |
170 | break; | |
171 | } | |
172 | } | |
173 | spin_unlock(&server->req_lock); | |
174 | return rc; | |
175 | } | |
176 | ||
2dc7e1c0 PS |
177 | static __u64 |
178 | smb2_get_next_mid(struct TCP_Server_Info *server) | |
179 | { | |
180 | __u64 mid; | |
181 | /* for SMB2 we need the current value */ | |
182 | spin_lock(&GlobalMid_Lock); | |
183 | mid = server->CurrentMid++; | |
184 | spin_unlock(&GlobalMid_Lock); | |
185 | return mid; | |
186 | } | |
1080ef75 | 187 | |
093b2bda PS |
188 | static struct mid_q_entry * |
189 | smb2_find_mid(struct TCP_Server_Info *server, char *buf) | |
190 | { | |
191 | struct mid_q_entry *mid; | |
31473fc4 PS |
192 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); |
193 | __u64 wire_mid = le64_to_cpu(shdr->MessageId); | |
093b2bda | 194 | |
31473fc4 | 195 | if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) { |
373512ec SF |
196 | cifs_dbg(VFS, "encrypted frame parsing not supported yet"); |
197 | return NULL; | |
198 | } | |
199 | ||
093b2bda PS |
200 | spin_lock(&GlobalMid_Lock); |
201 | list_for_each_entry(mid, &server->pending_mid_q, qhead) { | |
9235d098 | 202 | if ((mid->mid == wire_mid) && |
093b2bda | 203 | (mid->mid_state == MID_REQUEST_SUBMITTED) && |
31473fc4 | 204 | (mid->command == shdr->Command)) { |
093b2bda PS |
205 | spin_unlock(&GlobalMid_Lock); |
206 | return mid; | |
207 | } | |
208 | } | |
209 | spin_unlock(&GlobalMid_Lock); | |
210 | return NULL; | |
211 | } | |
212 | ||
213 | static void | |
214 | smb2_dump_detail(void *buf) | |
215 | { | |
216 | #ifdef CONFIG_CIFS_DEBUG2 | |
31473fc4 | 217 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); |
093b2bda | 218 | |
f96637be | 219 | cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n", |
31473fc4 PS |
220 | shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId, |
221 | shdr->ProcessId); | |
222 | cifs_dbg(VFS, "smb buf %p len %u\n", buf, smb2_calc_size(buf)); | |
093b2bda PS |
223 | #endif |
224 | } | |
225 | ||
ec2e4523 PS |
226 | static bool |
227 | smb2_need_neg(struct TCP_Server_Info *server) | |
228 | { | |
229 | return server->max_read == 0; | |
230 | } | |
231 | ||
232 | static int | |
233 | smb2_negotiate(const unsigned int xid, struct cifs_ses *ses) | |
234 | { | |
235 | int rc; | |
236 | ses->server->CurrentMid = 0; | |
237 | rc = SMB2_negotiate(xid, ses); | |
238 | /* BB we probably don't need to retry with modern servers */ | |
239 | if (rc == -EAGAIN) | |
240 | rc = -EHOSTDOWN; | |
241 | return rc; | |
242 | } | |
243 | ||
3a3bab50 PS |
244 | static unsigned int |
245 | smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
246 | { | |
247 | struct TCP_Server_Info *server = tcon->ses->server; | |
248 | unsigned int wsize; | |
249 | ||
250 | /* start with specified wsize, or default */ | |
251 | wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE; | |
252 | wsize = min_t(unsigned int, wsize, server->max_write); | |
cb7e9eab PS |
253 | |
254 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
255 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 256 | |
3a3bab50 PS |
257 | return wsize; |
258 | } | |
259 | ||
260 | static unsigned int | |
261 | smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
262 | { | |
263 | struct TCP_Server_Info *server = tcon->ses->server; | |
264 | unsigned int rsize; | |
265 | ||
266 | /* start with specified rsize, or default */ | |
267 | rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE; | |
268 | rsize = min_t(unsigned int, rsize, server->max_read); | |
bed9da02 PS |
269 | |
270 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
271 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 272 | |
3a3bab50 PS |
273 | return rsize; |
274 | } | |
275 | ||
c481e9fe SF |
276 | #ifdef CONFIG_CIFS_STATS2 |
277 | static int | |
278 | SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon) | |
279 | { | |
280 | int rc; | |
281 | unsigned int ret_data_len = 0; | |
282 | struct network_interface_info_ioctl_rsp *out_buf; | |
283 | ||
284 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
285 | FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */, | |
51146625 | 286 | false /* use_ipc */, |
c481e9fe SF |
287 | NULL /* no data input */, 0 /* no data input */, |
288 | (char **)&out_buf, &ret_data_len); | |
9ffc5412 SF |
289 | if (rc != 0) |
290 | cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc); | |
291 | else if (ret_data_len < sizeof(struct network_interface_info_ioctl_rsp)) { | |
292 | cifs_dbg(VFS, "server returned bad net interface info buf\n"); | |
293 | rc = -EINVAL; | |
294 | } else { | |
c481e9fe SF |
295 | /* Dump info on first interface */ |
296 | cifs_dbg(FYI, "Adapter Capability 0x%x\t", | |
297 | le32_to_cpu(out_buf->Capability)); | |
298 | cifs_dbg(FYI, "Link Speed %lld\n", | |
299 | le64_to_cpu(out_buf->LinkSpeed)); | |
9ffc5412 | 300 | } |
24df1483 | 301 | kfree(out_buf); |
c481e9fe SF |
302 | return rc; |
303 | } | |
304 | #endif /* STATS2 */ | |
305 | ||
af6a12ea SF |
306 | static void |
307 | smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
308 | { | |
309 | int rc; | |
310 | __le16 srch_path = 0; /* Null - open root of share */ | |
311 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
312 | struct cifs_open_parms oparms; | |
313 | struct cifs_fid fid; | |
314 | ||
315 | oparms.tcon = tcon; | |
316 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
317 | oparms.disposition = FILE_OPEN; | |
318 | oparms.create_options = 0; | |
319 | oparms.fid = &fid; | |
320 | oparms.reconnect = false; | |
321 | ||
322 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); | |
323 | if (rc) | |
324 | return; | |
325 | ||
c481e9fe SF |
326 | #ifdef CONFIG_CIFS_STATS2 |
327 | SMB3_request_interfaces(xid, tcon); | |
328 | #endif /* STATS2 */ | |
329 | ||
af6a12ea SF |
330 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
331 | FS_ATTRIBUTE_INFORMATION); | |
332 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
333 | FS_DEVICE_INFORMATION); | |
334 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
335 | FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */ | |
336 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
337 | return; | |
338 | } | |
339 | ||
34f62640 SF |
340 | static void |
341 | smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
342 | { | |
343 | int rc; | |
344 | __le16 srch_path = 0; /* Null - open root of share */ | |
345 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
346 | struct cifs_open_parms oparms; | |
347 | struct cifs_fid fid; | |
348 | ||
349 | oparms.tcon = tcon; | |
350 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
351 | oparms.disposition = FILE_OPEN; | |
352 | oparms.create_options = 0; | |
353 | oparms.fid = &fid; | |
354 | oparms.reconnect = false; | |
355 | ||
356 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); | |
357 | if (rc) | |
358 | return; | |
359 | ||
2167114c SF |
360 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
361 | FS_ATTRIBUTE_INFORMATION); | |
362 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
363 | FS_DEVICE_INFORMATION); | |
34f62640 SF |
364 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
365 | return; | |
366 | } | |
367 | ||
2503a0db PS |
368 | static int |
369 | smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, | |
370 | struct cifs_sb_info *cifs_sb, const char *full_path) | |
371 | { | |
372 | int rc; | |
2503a0db | 373 | __le16 *utf16_path; |
2e44b288 | 374 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
375 | struct cifs_open_parms oparms; |
376 | struct cifs_fid fid; | |
2503a0db PS |
377 | |
378 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
379 | if (!utf16_path) | |
380 | return -ENOMEM; | |
381 | ||
064f6047 PS |
382 | oparms.tcon = tcon; |
383 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
384 | oparms.disposition = FILE_OPEN; | |
385 | oparms.create_options = 0; | |
386 | oparms.fid = &fid; | |
9cbc0b73 | 387 | oparms.reconnect = false; |
064f6047 | 388 | |
b42bf888 | 389 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); |
2503a0db PS |
390 | if (rc) { |
391 | kfree(utf16_path); | |
392 | return rc; | |
393 | } | |
394 | ||
064f6047 | 395 | rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
2503a0db PS |
396 | kfree(utf16_path); |
397 | return rc; | |
398 | } | |
399 | ||
be4cb9e3 PS |
400 | static int |
401 | smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, | |
402 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
403 | u64 *uniqueid, FILE_ALL_INFO *data) | |
404 | { | |
405 | *uniqueid = le64_to_cpu(data->IndexNumber); | |
406 | return 0; | |
407 | } | |
408 | ||
b7546bc5 PS |
409 | static int |
410 | smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, | |
411 | struct cifs_fid *fid, FILE_ALL_INFO *data) | |
412 | { | |
413 | int rc; | |
414 | struct smb2_file_all_info *smb2_data; | |
415 | ||
1bbe4997 | 416 | smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2, |
b7546bc5 PS |
417 | GFP_KERNEL); |
418 | if (smb2_data == NULL) | |
419 | return -ENOMEM; | |
420 | ||
421 | rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid, | |
422 | smb2_data); | |
423 | if (!rc) | |
424 | move_smb2_info_to_cifs(data, smb2_data); | |
425 | kfree(smb2_data); | |
426 | return rc; | |
427 | } | |
428 | ||
1368f155 | 429 | #ifdef CONFIG_CIFS_XATTR |
95907fea RS |
430 | static ssize_t |
431 | move_smb2_ea_to_cifs(char *dst, size_t dst_size, | |
432 | struct smb2_file_full_ea_info *src, size_t src_size, | |
433 | const unsigned char *ea_name) | |
434 | { | |
435 | int rc = 0; | |
436 | unsigned int ea_name_len = ea_name ? strlen(ea_name) : 0; | |
437 | char *name, *value; | |
438 | size_t name_len, value_len, user_name_len; | |
439 | ||
440 | while (src_size > 0) { | |
441 | name = &src->ea_data[0]; | |
442 | name_len = (size_t)src->ea_name_length; | |
443 | value = &src->ea_data[src->ea_name_length + 1]; | |
444 | value_len = (size_t)le16_to_cpu(src->ea_value_length); | |
445 | ||
446 | if (name_len == 0) { | |
447 | break; | |
448 | } | |
449 | ||
450 | if (src_size < 8 + name_len + 1 + value_len) { | |
451 | cifs_dbg(FYI, "EA entry goes beyond length of list\n"); | |
452 | rc = -EIO; | |
453 | goto out; | |
454 | } | |
455 | ||
456 | if (ea_name) { | |
457 | if (ea_name_len == name_len && | |
458 | memcmp(ea_name, name, name_len) == 0) { | |
459 | rc = value_len; | |
460 | if (dst_size == 0) | |
461 | goto out; | |
462 | if (dst_size < value_len) { | |
463 | rc = -ERANGE; | |
464 | goto out; | |
465 | } | |
466 | memcpy(dst, value, value_len); | |
467 | goto out; | |
468 | } | |
469 | } else { | |
470 | /* 'user.' plus a terminating null */ | |
471 | user_name_len = 5 + 1 + name_len; | |
472 | ||
473 | rc += user_name_len; | |
474 | ||
475 | if (dst_size >= user_name_len) { | |
476 | dst_size -= user_name_len; | |
477 | memcpy(dst, "user.", 5); | |
478 | dst += 5; | |
479 | memcpy(dst, src->ea_data, name_len); | |
480 | dst += name_len; | |
481 | *dst = 0; | |
482 | ++dst; | |
483 | } else if (dst_size == 0) { | |
484 | /* skip copy - calc size only */ | |
485 | } else { | |
486 | /* stop before overrun buffer */ | |
487 | rc = -ERANGE; | |
488 | break; | |
489 | } | |
490 | } | |
491 | ||
492 | if (!src->next_entry_offset) | |
493 | break; | |
494 | ||
495 | if (src_size < le32_to_cpu(src->next_entry_offset)) { | |
496 | /* stop before overrun buffer */ | |
497 | rc = -ERANGE; | |
498 | break; | |
499 | } | |
500 | src_size -= le32_to_cpu(src->next_entry_offset); | |
501 | src = (void *)((char *)src + | |
502 | le32_to_cpu(src->next_entry_offset)); | |
503 | } | |
504 | ||
505 | /* didn't find the named attribute */ | |
506 | if (ea_name) | |
507 | rc = -ENODATA; | |
508 | ||
509 | out: | |
510 | return (ssize_t)rc; | |
511 | } | |
512 | ||
513 | static ssize_t | |
514 | smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon, | |
515 | const unsigned char *path, const unsigned char *ea_name, | |
516 | char *ea_data, size_t buf_size, | |
517 | struct cifs_sb_info *cifs_sb) | |
518 | { | |
519 | int rc; | |
520 | __le16 *utf16_path; | |
521 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
522 | struct cifs_open_parms oparms; | |
523 | struct cifs_fid fid; | |
524 | struct smb2_file_full_ea_info *smb2_data; | |
7cb3def4 | 525 | int ea_buf_size = SMB2_MIN_EA_BUF; |
95907fea RS |
526 | |
527 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
528 | if (!utf16_path) | |
529 | return -ENOMEM; | |
530 | ||
531 | oparms.tcon = tcon; | |
532 | oparms.desired_access = FILE_READ_EA; | |
533 | oparms.disposition = FILE_OPEN; | |
534 | oparms.create_options = 0; | |
535 | oparms.fid = &fid; | |
536 | oparms.reconnect = false; | |
537 | ||
538 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); | |
539 | kfree(utf16_path); | |
540 | if (rc) { | |
541 | cifs_dbg(FYI, "open failed rc=%d\n", rc); | |
542 | return rc; | |
543 | } | |
544 | ||
7cb3def4 RS |
545 | while (1) { |
546 | smb2_data = kzalloc(ea_buf_size, GFP_KERNEL); | |
547 | if (smb2_data == NULL) { | |
548 | SMB2_close(xid, tcon, fid.persistent_fid, | |
549 | fid.volatile_fid); | |
550 | return -ENOMEM; | |
551 | } | |
552 | ||
553 | rc = SMB2_query_eas(xid, tcon, fid.persistent_fid, | |
554 | fid.volatile_fid, | |
555 | ea_buf_size, smb2_data); | |
556 | ||
557 | if (rc != -E2BIG) | |
558 | break; | |
559 | ||
560 | kfree(smb2_data); | |
561 | ea_buf_size <<= 1; | |
562 | ||
563 | if (ea_buf_size > SMB2_MAX_EA_BUF) { | |
564 | cifs_dbg(VFS, "EA size is too large\n"); | |
565 | SMB2_close(xid, tcon, fid.persistent_fid, | |
566 | fid.volatile_fid); | |
567 | return -ENOMEM; | |
568 | } | |
95907fea RS |
569 | } |
570 | ||
95907fea RS |
571 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
572 | ||
573 | if (!rc) | |
574 | rc = move_smb2_ea_to_cifs(ea_data, buf_size, smb2_data, | |
575 | SMB2_MAX_EA_BUF, ea_name); | |
576 | ||
577 | kfree(smb2_data); | |
578 | return rc; | |
579 | } | |
580 | ||
5517554e RS |
581 | |
582 | static int | |
583 | smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, | |
584 | const char *path, const char *ea_name, const void *ea_value, | |
585 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
586 | struct cifs_sb_info *cifs_sb) | |
587 | { | |
588 | int rc; | |
589 | __le16 *utf16_path; | |
590 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
591 | struct cifs_open_parms oparms; | |
592 | struct cifs_fid fid; | |
593 | struct smb2_file_full_ea_info *ea; | |
594 | int ea_name_len = strlen(ea_name); | |
595 | int len; | |
596 | ||
597 | if (ea_name_len > 255) | |
598 | return -EINVAL; | |
599 | ||
600 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
601 | if (!utf16_path) | |
602 | return -ENOMEM; | |
603 | ||
604 | oparms.tcon = tcon; | |
605 | oparms.desired_access = FILE_WRITE_EA; | |
606 | oparms.disposition = FILE_OPEN; | |
607 | oparms.create_options = 0; | |
608 | oparms.fid = &fid; | |
609 | oparms.reconnect = false; | |
610 | ||
611 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); | |
612 | kfree(utf16_path); | |
613 | if (rc) { | |
614 | cifs_dbg(FYI, "open failed rc=%d\n", rc); | |
615 | return rc; | |
616 | } | |
617 | ||
618 | len = sizeof(ea) + ea_name_len + ea_value_len + 1; | |
619 | ea = kzalloc(len, GFP_KERNEL); | |
620 | if (ea == NULL) { | |
621 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
622 | return -ENOMEM; | |
623 | } | |
624 | ||
625 | ea->ea_name_length = ea_name_len; | |
626 | ea->ea_value_length = cpu_to_le16(ea_value_len); | |
627 | memcpy(ea->ea_data, ea_name, ea_name_len + 1); | |
628 | memcpy(ea->ea_data + ea_name_len + 1, ea_value, ea_value_len); | |
629 | ||
630 | rc = SMB2_set_ea(xid, tcon, fid.persistent_fid, fid.volatile_fid, ea, | |
631 | len); | |
632 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
633 | ||
634 | return rc; | |
635 | } | |
1368f155 | 636 | #endif |
5517554e | 637 | |
9094fad1 PS |
638 | static bool |
639 | smb2_can_echo(struct TCP_Server_Info *server) | |
640 | { | |
641 | return server->echoes; | |
642 | } | |
643 | ||
d60622eb PS |
644 | static void |
645 | smb2_clear_stats(struct cifs_tcon *tcon) | |
646 | { | |
647 | #ifdef CONFIG_CIFS_STATS | |
648 | int i; | |
649 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { | |
650 | atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0); | |
651 | atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0); | |
652 | } | |
653 | #endif | |
654 | } | |
655 | ||
769ee6a4 SF |
656 | static void |
657 | smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon) | |
658 | { | |
659 | seq_puts(m, "\n\tShare Capabilities:"); | |
660 | if (tcon->capabilities & SMB2_SHARE_CAP_DFS) | |
661 | seq_puts(m, " DFS,"); | |
662 | if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY) | |
663 | seq_puts(m, " CONTINUOUS AVAILABILITY,"); | |
664 | if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT) | |
665 | seq_puts(m, " SCALEOUT,"); | |
666 | if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER) | |
667 | seq_puts(m, " CLUSTER,"); | |
668 | if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC) | |
669 | seq_puts(m, " ASYMMETRIC,"); | |
670 | if (tcon->capabilities == 0) | |
671 | seq_puts(m, " None"); | |
af6a12ea SF |
672 | if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE) |
673 | seq_puts(m, " Aligned,"); | |
674 | if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE) | |
675 | seq_puts(m, " Partition Aligned,"); | |
676 | if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY) | |
677 | seq_puts(m, " SSD,"); | |
678 | if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED) | |
679 | seq_puts(m, " TRIM-support,"); | |
680 | ||
769ee6a4 | 681 | seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags); |
af6a12ea SF |
682 | if (tcon->perf_sector_size) |
683 | seq_printf(m, "\tOptimal sector size: 0x%x", | |
684 | tcon->perf_sector_size); | |
769ee6a4 SF |
685 | } |
686 | ||
d60622eb PS |
687 | static void |
688 | smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon) | |
689 | { | |
690 | #ifdef CONFIG_CIFS_STATS | |
691 | atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent; | |
692 | atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed; | |
693 | seq_printf(m, "\nNegotiates: %d sent %d failed", | |
694 | atomic_read(&sent[SMB2_NEGOTIATE_HE]), | |
695 | atomic_read(&failed[SMB2_NEGOTIATE_HE])); | |
696 | seq_printf(m, "\nSessionSetups: %d sent %d failed", | |
697 | atomic_read(&sent[SMB2_SESSION_SETUP_HE]), | |
698 | atomic_read(&failed[SMB2_SESSION_SETUP_HE])); | |
d60622eb PS |
699 | seq_printf(m, "\nLogoffs: %d sent %d failed", |
700 | atomic_read(&sent[SMB2_LOGOFF_HE]), | |
701 | atomic_read(&failed[SMB2_LOGOFF_HE])); | |
702 | seq_printf(m, "\nTreeConnects: %d sent %d failed", | |
703 | atomic_read(&sent[SMB2_TREE_CONNECT_HE]), | |
704 | atomic_read(&failed[SMB2_TREE_CONNECT_HE])); | |
705 | seq_printf(m, "\nTreeDisconnects: %d sent %d failed", | |
706 | atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]), | |
707 | atomic_read(&failed[SMB2_TREE_DISCONNECT_HE])); | |
708 | seq_printf(m, "\nCreates: %d sent %d failed", | |
709 | atomic_read(&sent[SMB2_CREATE_HE]), | |
710 | atomic_read(&failed[SMB2_CREATE_HE])); | |
711 | seq_printf(m, "\nCloses: %d sent %d failed", | |
712 | atomic_read(&sent[SMB2_CLOSE_HE]), | |
713 | atomic_read(&failed[SMB2_CLOSE_HE])); | |
714 | seq_printf(m, "\nFlushes: %d sent %d failed", | |
715 | atomic_read(&sent[SMB2_FLUSH_HE]), | |
716 | atomic_read(&failed[SMB2_FLUSH_HE])); | |
717 | seq_printf(m, "\nReads: %d sent %d failed", | |
718 | atomic_read(&sent[SMB2_READ_HE]), | |
719 | atomic_read(&failed[SMB2_READ_HE])); | |
720 | seq_printf(m, "\nWrites: %d sent %d failed", | |
721 | atomic_read(&sent[SMB2_WRITE_HE]), | |
722 | atomic_read(&failed[SMB2_WRITE_HE])); | |
723 | seq_printf(m, "\nLocks: %d sent %d failed", | |
724 | atomic_read(&sent[SMB2_LOCK_HE]), | |
725 | atomic_read(&failed[SMB2_LOCK_HE])); | |
726 | seq_printf(m, "\nIOCTLs: %d sent %d failed", | |
727 | atomic_read(&sent[SMB2_IOCTL_HE]), | |
728 | atomic_read(&failed[SMB2_IOCTL_HE])); | |
729 | seq_printf(m, "\nCancels: %d sent %d failed", | |
730 | atomic_read(&sent[SMB2_CANCEL_HE]), | |
731 | atomic_read(&failed[SMB2_CANCEL_HE])); | |
732 | seq_printf(m, "\nEchos: %d sent %d failed", | |
733 | atomic_read(&sent[SMB2_ECHO_HE]), | |
734 | atomic_read(&failed[SMB2_ECHO_HE])); | |
735 | seq_printf(m, "\nQueryDirectories: %d sent %d failed", | |
736 | atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]), | |
737 | atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE])); | |
738 | seq_printf(m, "\nChangeNotifies: %d sent %d failed", | |
739 | atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]), | |
740 | atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE])); | |
741 | seq_printf(m, "\nQueryInfos: %d sent %d failed", | |
742 | atomic_read(&sent[SMB2_QUERY_INFO_HE]), | |
743 | atomic_read(&failed[SMB2_QUERY_INFO_HE])); | |
744 | seq_printf(m, "\nSetInfos: %d sent %d failed", | |
745 | atomic_read(&sent[SMB2_SET_INFO_HE]), | |
746 | atomic_read(&failed[SMB2_SET_INFO_HE])); | |
747 | seq_printf(m, "\nOplockBreaks: %d sent %d failed", | |
748 | atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]), | |
749 | atomic_read(&failed[SMB2_OPLOCK_BREAK_HE])); | |
750 | #endif | |
751 | } | |
752 | ||
f0df737e PS |
753 | static void |
754 | smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock) | |
755 | { | |
2b0143b5 | 756 | struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry)); |
53ef1016 PS |
757 | struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server; |
758 | ||
f0df737e PS |
759 | cfile->fid.persistent_fid = fid->persistent_fid; |
760 | cfile->fid.volatile_fid = fid->volatile_fid; | |
42873b0a PS |
761 | server->ops->set_oplock_level(cinode, oplock, fid->epoch, |
762 | &fid->purge_cache); | |
18cceb6a | 763 | cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode); |
94f87371 | 764 | memcpy(cfile->fid.create_guid, fid->create_guid, 16); |
f0df737e PS |
765 | } |
766 | ||
760ad0ca | 767 | static void |
f0df737e PS |
768 | smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon, |
769 | struct cifs_fid *fid) | |
770 | { | |
760ad0ca | 771 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
f0df737e PS |
772 | } |
773 | ||
41c1358e SF |
774 | static int |
775 | SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon, | |
776 | u64 persistent_fid, u64 volatile_fid, | |
777 | struct copychunk_ioctl *pcchunk) | |
778 | { | |
779 | int rc; | |
780 | unsigned int ret_data_len; | |
781 | struct resume_key_req *res_key; | |
782 | ||
783 | rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid, | |
784 | FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */, | |
51146625 | 785 | false /* use_ipc */, |
41c1358e SF |
786 | NULL, 0 /* no input */, |
787 | (char **)&res_key, &ret_data_len); | |
788 | ||
789 | if (rc) { | |
790 | cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc); | |
791 | goto req_res_key_exit; | |
792 | } | |
793 | if (ret_data_len < sizeof(struct resume_key_req)) { | |
794 | cifs_dbg(VFS, "Invalid refcopy resume key length\n"); | |
795 | rc = -EINVAL; | |
796 | goto req_res_key_exit; | |
797 | } | |
798 | memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE); | |
799 | ||
800 | req_res_key_exit: | |
801 | kfree(res_key); | |
802 | return rc; | |
803 | } | |
804 | ||
620d8745 | 805 | static ssize_t |
312bbc59 | 806 | smb2_copychunk_range(const unsigned int xid, |
41c1358e SF |
807 | struct cifsFileInfo *srcfile, |
808 | struct cifsFileInfo *trgtfile, u64 src_off, | |
809 | u64 len, u64 dest_off) | |
810 | { | |
811 | int rc; | |
812 | unsigned int ret_data_len; | |
813 | struct copychunk_ioctl *pcchunk; | |
9bf0c9cd SF |
814 | struct copychunk_ioctl_rsp *retbuf = NULL; |
815 | struct cifs_tcon *tcon; | |
816 | int chunks_copied = 0; | |
817 | bool chunk_sizes_updated = false; | |
620d8745 | 818 | ssize_t bytes_written, total_bytes_written = 0; |
41c1358e SF |
819 | |
820 | pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL); | |
821 | ||
822 | if (pcchunk == NULL) | |
823 | return -ENOMEM; | |
824 | ||
312bbc59 | 825 | cifs_dbg(FYI, "in smb2_copychunk_range - about to call request res key\n"); |
41c1358e SF |
826 | /* Request a key from the server to identify the source of the copy */ |
827 | rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink), | |
828 | srcfile->fid.persistent_fid, | |
829 | srcfile->fid.volatile_fid, pcchunk); | |
830 | ||
831 | /* Note: request_res_key sets res_key null only if rc !=0 */ | |
832 | if (rc) | |
9bf0c9cd | 833 | goto cchunk_out; |
41c1358e SF |
834 | |
835 | /* For now array only one chunk long, will make more flexible later */ | |
bc09d141 | 836 | pcchunk->ChunkCount = cpu_to_le32(1); |
41c1358e | 837 | pcchunk->Reserved = 0; |
41c1358e SF |
838 | pcchunk->Reserved2 = 0; |
839 | ||
9bf0c9cd | 840 | tcon = tlink_tcon(trgtfile->tlink); |
41c1358e | 841 | |
9bf0c9cd SF |
842 | while (len > 0) { |
843 | pcchunk->SourceOffset = cpu_to_le64(src_off); | |
844 | pcchunk->TargetOffset = cpu_to_le64(dest_off); | |
845 | pcchunk->Length = | |
846 | cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk)); | |
41c1358e | 847 | |
9bf0c9cd SF |
848 | /* Request server copy to target from src identified by key */ |
849 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
850 | trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, | |
51146625 AA |
851 | true /* is_fsctl */, false /* use_ipc */, |
852 | (char *)pcchunk, | |
9bf0c9cd SF |
853 | sizeof(struct copychunk_ioctl), (char **)&retbuf, |
854 | &ret_data_len); | |
855 | if (rc == 0) { | |
856 | if (ret_data_len != | |
857 | sizeof(struct copychunk_ioctl_rsp)) { | |
858 | cifs_dbg(VFS, "invalid cchunk response size\n"); | |
859 | rc = -EIO; | |
860 | goto cchunk_out; | |
861 | } | |
862 | if (retbuf->TotalBytesWritten == 0) { | |
863 | cifs_dbg(FYI, "no bytes copied\n"); | |
864 | rc = -EIO; | |
865 | goto cchunk_out; | |
866 | } | |
867 | /* | |
868 | * Check if server claimed to write more than we asked | |
869 | */ | |
870 | if (le32_to_cpu(retbuf->TotalBytesWritten) > | |
871 | le32_to_cpu(pcchunk->Length)) { | |
872 | cifs_dbg(VFS, "invalid copy chunk response\n"); | |
873 | rc = -EIO; | |
874 | goto cchunk_out; | |
875 | } | |
876 | if (le32_to_cpu(retbuf->ChunksWritten) != 1) { | |
877 | cifs_dbg(VFS, "invalid num chunks written\n"); | |
878 | rc = -EIO; | |
879 | goto cchunk_out; | |
880 | } | |
881 | chunks_copied++; | |
882 | ||
620d8745 SP |
883 | bytes_written = le32_to_cpu(retbuf->TotalBytesWritten); |
884 | src_off += bytes_written; | |
885 | dest_off += bytes_written; | |
886 | len -= bytes_written; | |
887 | total_bytes_written += bytes_written; | |
9bf0c9cd | 888 | |
620d8745 | 889 | cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %zu\n", |
9bf0c9cd SF |
890 | le32_to_cpu(retbuf->ChunksWritten), |
891 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
620d8745 | 892 | bytes_written); |
9bf0c9cd SF |
893 | } else if (rc == -EINVAL) { |
894 | if (ret_data_len != sizeof(struct copychunk_ioctl_rsp)) | |
895 | goto cchunk_out; | |
896 | ||
897 | cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n", | |
898 | le32_to_cpu(retbuf->ChunksWritten), | |
899 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
900 | le32_to_cpu(retbuf->TotalBytesWritten)); | |
901 | ||
902 | /* | |
903 | * Check if this is the first request using these sizes, | |
904 | * (ie check if copy succeed once with original sizes | |
905 | * and check if the server gave us different sizes after | |
906 | * we already updated max sizes on previous request). | |
907 | * if not then why is the server returning an error now | |
908 | */ | |
909 | if ((chunks_copied != 0) || chunk_sizes_updated) | |
910 | goto cchunk_out; | |
911 | ||
912 | /* Check that server is not asking us to grow size */ | |
913 | if (le32_to_cpu(retbuf->ChunkBytesWritten) < | |
914 | tcon->max_bytes_chunk) | |
915 | tcon->max_bytes_chunk = | |
916 | le32_to_cpu(retbuf->ChunkBytesWritten); | |
917 | else | |
918 | goto cchunk_out; /* server gave us bogus size */ | |
919 | ||
920 | /* No need to change MaxChunks since already set to 1 */ | |
921 | chunk_sizes_updated = true; | |
2477bc58 SP |
922 | } else |
923 | goto cchunk_out; | |
9bf0c9cd | 924 | } |
41c1358e | 925 | |
9bf0c9cd | 926 | cchunk_out: |
41c1358e | 927 | kfree(pcchunk); |
24df1483 | 928 | kfree(retbuf); |
620d8745 SP |
929 | if (rc) |
930 | return rc; | |
931 | else | |
932 | return total_bytes_written; | |
41c1358e SF |
933 | } |
934 | ||
7a5cfb19 PS |
935 | static int |
936 | smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon, | |
937 | struct cifs_fid *fid) | |
938 | { | |
939 | return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
940 | } | |
941 | ||
09a4707e PS |
942 | static unsigned int |
943 | smb2_read_data_offset(char *buf) | |
944 | { | |
945 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
946 | return rsp->DataOffset; | |
947 | } | |
948 | ||
949 | static unsigned int | |
950 | smb2_read_data_length(char *buf) | |
951 | { | |
952 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
953 | return le32_to_cpu(rsp->DataLength); | |
954 | } | |
955 | ||
d8e05039 PS |
956 | |
957 | static int | |
db8b631d | 958 | smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid, |
d8e05039 PS |
959 | struct cifs_io_parms *parms, unsigned int *bytes_read, |
960 | char **buf, int *buf_type) | |
961 | { | |
db8b631d SF |
962 | parms->persistent_fid = pfid->persistent_fid; |
963 | parms->volatile_fid = pfid->volatile_fid; | |
d8e05039 PS |
964 | return SMB2_read(xid, parms, bytes_read, buf, buf_type); |
965 | } | |
966 | ||
009d3443 | 967 | static int |
db8b631d | 968 | smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid, |
009d3443 PS |
969 | struct cifs_io_parms *parms, unsigned int *written, |
970 | struct kvec *iov, unsigned long nr_segs) | |
971 | { | |
972 | ||
db8b631d SF |
973 | parms->persistent_fid = pfid->persistent_fid; |
974 | parms->volatile_fid = pfid->volatile_fid; | |
009d3443 PS |
975 | return SMB2_write(xid, parms, written, iov, nr_segs); |
976 | } | |
977 | ||
d43cc793 SF |
978 | /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */ |
979 | static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon, | |
980 | struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse) | |
981 | { | |
982 | struct cifsInodeInfo *cifsi; | |
983 | int rc; | |
984 | ||
985 | cifsi = CIFS_I(inode); | |
986 | ||
987 | /* if file already sparse don't bother setting sparse again */ | |
988 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse) | |
989 | return true; /* already sparse */ | |
990 | ||
991 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse) | |
992 | return true; /* already not sparse */ | |
993 | ||
994 | /* | |
995 | * Can't check for sparse support on share the usual way via the | |
996 | * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share | |
997 | * since Samba server doesn't set the flag on the share, yet | |
998 | * supports the set sparse FSCTL and returns sparse correctly | |
999 | * in the file attributes. If we fail setting sparse though we | |
1000 | * mark that server does not support sparse files for this share | |
1001 | * to avoid repeatedly sending the unsupported fsctl to server | |
1002 | * if the file is repeatedly extended. | |
1003 | */ | |
1004 | if (tcon->broken_sparse_sup) | |
1005 | return false; | |
1006 | ||
1007 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1008 | cfile->fid.volatile_fid, FSCTL_SET_SPARSE, | |
51146625 AA |
1009 | true /* is_fctl */, false /* use_ipc */, |
1010 | &setsparse, 1, NULL, NULL); | |
d43cc793 SF |
1011 | if (rc) { |
1012 | tcon->broken_sparse_sup = true; | |
1013 | cifs_dbg(FYI, "set sparse rc = %d\n", rc); | |
1014 | return false; | |
1015 | } | |
1016 | ||
1017 | if (setsparse) | |
1018 | cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE; | |
1019 | else | |
1020 | cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE); | |
1021 | ||
1022 | return true; | |
1023 | } | |
1024 | ||
c839ff24 PS |
1025 | static int |
1026 | smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon, | |
1027 | struct cifsFileInfo *cfile, __u64 size, bool set_alloc) | |
1028 | { | |
1029 | __le64 eof = cpu_to_le64(size); | |
3d1a3745 SF |
1030 | struct inode *inode; |
1031 | ||
1032 | /* | |
1033 | * If extending file more than one page make sparse. Many Linux fs | |
1034 | * make files sparse by default when extending via ftruncate | |
1035 | */ | |
2b0143b5 | 1036 | inode = d_inode(cfile->dentry); |
3d1a3745 SF |
1037 | |
1038 | if (!set_alloc && (size > inode->i_size + 8192)) { | |
3d1a3745 | 1039 | __u8 set_sparse = 1; |
d43cc793 SF |
1040 | |
1041 | /* whether set sparse succeeds or not, extend the file */ | |
1042 | smb2_set_sparse(xid, tcon, cfile, inode, set_sparse); | |
3d1a3745 SF |
1043 | } |
1044 | ||
c839ff24 | 1045 | return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
f29ebb47 | 1046 | cfile->fid.volatile_fid, cfile->pid, &eof, false); |
c839ff24 PS |
1047 | } |
1048 | ||
02b16665 SF |
1049 | static int |
1050 | smb2_duplicate_extents(const unsigned int xid, | |
1051 | struct cifsFileInfo *srcfile, | |
1052 | struct cifsFileInfo *trgtfile, u64 src_off, | |
1053 | u64 len, u64 dest_off) | |
1054 | { | |
1055 | int rc; | |
1056 | unsigned int ret_data_len; | |
02b16665 SF |
1057 | struct duplicate_extents_to_file dup_ext_buf; |
1058 | struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink); | |
1059 | ||
1060 | /* server fileays advertise duplicate extent support with this flag */ | |
1061 | if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) & | |
1062 | FILE_SUPPORTS_BLOCK_REFCOUNTING) == 0) | |
1063 | return -EOPNOTSUPP; | |
1064 | ||
1065 | dup_ext_buf.VolatileFileHandle = srcfile->fid.volatile_fid; | |
1066 | dup_ext_buf.PersistentFileHandle = srcfile->fid.persistent_fid; | |
1067 | dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off); | |
1068 | dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off); | |
1069 | dup_ext_buf.ByteCount = cpu_to_le64(len); | |
1070 | cifs_dbg(FYI, "duplicate extents: src off %lld dst off %lld len %lld", | |
1071 | src_off, dest_off, len); | |
1072 | ||
1073 | rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false); | |
1074 | if (rc) | |
1075 | goto duplicate_extents_out; | |
1076 | ||
1077 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
1078 | trgtfile->fid.volatile_fid, | |
1079 | FSCTL_DUPLICATE_EXTENTS_TO_FILE, | |
51146625 AA |
1080 | true /* is_fsctl */, false /* use_ipc */, |
1081 | (char *)&dup_ext_buf, | |
02b16665 | 1082 | sizeof(struct duplicate_extents_to_file), |
24df1483 | 1083 | NULL, |
02b16665 SF |
1084 | &ret_data_len); |
1085 | ||
1086 | if (ret_data_len > 0) | |
1087 | cifs_dbg(FYI, "non-zero response length in duplicate extents"); | |
1088 | ||
1089 | duplicate_extents_out: | |
1090 | return rc; | |
1091 | } | |
02b16665 | 1092 | |
64a5cfa6 SF |
1093 | static int |
1094 | smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, | |
1095 | struct cifsFileInfo *cfile) | |
1096 | { | |
1097 | return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid, | |
1098 | cfile->fid.volatile_fid); | |
1099 | } | |
1100 | ||
b3152e2c SF |
1101 | static int |
1102 | smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon, | |
1103 | struct cifsFileInfo *cfile) | |
1104 | { | |
1105 | struct fsctl_set_integrity_information_req integr_info; | |
b3152e2c SF |
1106 | unsigned int ret_data_len; |
1107 | ||
1108 | integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED); | |
1109 | integr_info.Flags = 0; | |
1110 | integr_info.Reserved = 0; | |
1111 | ||
1112 | return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1113 | cfile->fid.volatile_fid, | |
1114 | FSCTL_SET_INTEGRITY_INFORMATION, | |
51146625 AA |
1115 | true /* is_fsctl */, false /* use_ipc */, |
1116 | (char *)&integr_info, | |
b3152e2c | 1117 | sizeof(struct fsctl_set_integrity_information_req), |
24df1483 | 1118 | NULL, |
b3152e2c SF |
1119 | &ret_data_len); |
1120 | ||
1121 | } | |
1122 | ||
834170c8 SF |
1123 | static int |
1124 | smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon, | |
1125 | struct cifsFileInfo *cfile, void __user *ioc_buf) | |
1126 | { | |
1127 | char *retbuf = NULL; | |
1128 | unsigned int ret_data_len = 0; | |
1129 | int rc; | |
1130 | struct smb_snapshot_array snapshot_in; | |
1131 | ||
1132 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1133 | cfile->fid.volatile_fid, | |
1134 | FSCTL_SRV_ENUMERATE_SNAPSHOTS, | |
51146625 AA |
1135 | true /* is_fsctl */, false /* use_ipc */, |
1136 | NULL, 0 /* no input data */, | |
834170c8 SF |
1137 | (char **)&retbuf, |
1138 | &ret_data_len); | |
1139 | cifs_dbg(FYI, "enum snaphots ioctl returned %d and ret buflen is %d\n", | |
1140 | rc, ret_data_len); | |
1141 | if (rc) | |
1142 | return rc; | |
1143 | ||
1144 | if (ret_data_len && (ioc_buf != NULL) && (retbuf != NULL)) { | |
1145 | /* Fixup buffer */ | |
1146 | if (copy_from_user(&snapshot_in, ioc_buf, | |
1147 | sizeof(struct smb_snapshot_array))) { | |
1148 | rc = -EFAULT; | |
1149 | kfree(retbuf); | |
1150 | return rc; | |
1151 | } | |
1152 | if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) { | |
1153 | rc = -ERANGE; | |
0e5c7955 | 1154 | kfree(retbuf); |
834170c8 SF |
1155 | return rc; |
1156 | } | |
1157 | ||
1158 | if (ret_data_len > snapshot_in.snapshot_array_size) | |
1159 | ret_data_len = snapshot_in.snapshot_array_size; | |
1160 | ||
1161 | if (copy_to_user(ioc_buf, retbuf, ret_data_len)) | |
1162 | rc = -EFAULT; | |
1163 | } | |
1164 | ||
1165 | kfree(retbuf); | |
1166 | return rc; | |
1167 | } | |
1168 | ||
d324f08d PS |
1169 | static int |
1170 | smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, | |
1171 | const char *path, struct cifs_sb_info *cifs_sb, | |
1172 | struct cifs_fid *fid, __u16 search_flags, | |
1173 | struct cifs_search_info *srch_inf) | |
1174 | { | |
1175 | __le16 *utf16_path; | |
1176 | int rc; | |
2e44b288 | 1177 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 | 1178 | struct cifs_open_parms oparms; |
d324f08d PS |
1179 | |
1180 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1181 | if (!utf16_path) | |
1182 | return -ENOMEM; | |
1183 | ||
064f6047 PS |
1184 | oparms.tcon = tcon; |
1185 | oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; | |
1186 | oparms.disposition = FILE_OPEN; | |
1187 | oparms.create_options = 0; | |
1188 | oparms.fid = fid; | |
9cbc0b73 | 1189 | oparms.reconnect = false; |
064f6047 | 1190 | |
b42bf888 | 1191 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); |
d324f08d PS |
1192 | kfree(utf16_path); |
1193 | if (rc) { | |
dcd87838 | 1194 | cifs_dbg(FYI, "open dir failed rc=%d\n", rc); |
d324f08d PS |
1195 | return rc; |
1196 | } | |
1197 | ||
1198 | srch_inf->entries_in_buffer = 0; | |
1199 | srch_inf->index_of_last_entry = 0; | |
d324f08d | 1200 | |
064f6047 PS |
1201 | rc = SMB2_query_directory(xid, tcon, fid->persistent_fid, |
1202 | fid->volatile_fid, 0, srch_inf); | |
d324f08d | 1203 | if (rc) { |
dcd87838 | 1204 | cifs_dbg(FYI, "query directory failed rc=%d\n", rc); |
064f6047 | 1205 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
d324f08d PS |
1206 | } |
1207 | return rc; | |
1208 | } | |
1209 | ||
1210 | static int | |
1211 | smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon, | |
1212 | struct cifs_fid *fid, __u16 search_flags, | |
1213 | struct cifs_search_info *srch_inf) | |
1214 | { | |
1215 | return SMB2_query_directory(xid, tcon, fid->persistent_fid, | |
1216 | fid->volatile_fid, 0, srch_inf); | |
1217 | } | |
1218 | ||
1219 | static int | |
1220 | smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon, | |
1221 | struct cifs_fid *fid) | |
1222 | { | |
1223 | return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
1224 | } | |
1225 | ||
2e44b288 PS |
1226 | /* |
1227 | * If we negotiate SMB2 protocol and get STATUS_PENDING - update | |
1228 | * the number of credits and return true. Otherwise - return false. | |
1229 | */ | |
1230 | static bool | |
1231 | smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length) | |
1232 | { | |
31473fc4 | 1233 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); |
2e44b288 | 1234 | |
31473fc4 | 1235 | if (shdr->Status != STATUS_PENDING) |
2e44b288 PS |
1236 | return false; |
1237 | ||
1238 | if (!length) { | |
1239 | spin_lock(&server->req_lock); | |
31473fc4 | 1240 | server->credits += le16_to_cpu(shdr->CreditRequest); |
2e44b288 PS |
1241 | spin_unlock(&server->req_lock); |
1242 | wake_up(&server->request_q); | |
1243 | } | |
1244 | ||
1245 | return true; | |
1246 | } | |
1247 | ||
511c54a2 PS |
1248 | static bool |
1249 | smb2_is_session_expired(char *buf) | |
1250 | { | |
1251 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); | |
1252 | ||
1253 | if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED) | |
1254 | return false; | |
1255 | ||
1256 | cifs_dbg(FYI, "Session expired\n"); | |
1257 | return true; | |
1258 | } | |
1259 | ||
983c88a4 PS |
1260 | static int |
1261 | smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid, | |
1262 | struct cifsInodeInfo *cinode) | |
1263 | { | |
0822f514 PS |
1264 | if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING) |
1265 | return SMB2_lease_break(0, tcon, cinode->lease_key, | |
1266 | smb2_get_lease_state(cinode)); | |
1267 | ||
983c88a4 PS |
1268 | return SMB2_oplock_break(0, tcon, fid->persistent_fid, |
1269 | fid->volatile_fid, | |
18cceb6a | 1270 | CIFS_CACHE_READ(cinode) ? 1 : 0); |
983c88a4 PS |
1271 | } |
1272 | ||
6fc05c25 PS |
1273 | static int |
1274 | smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
1275 | struct kstatfs *buf) | |
1276 | { | |
1277 | int rc; | |
6fc05c25 PS |
1278 | __le16 srch_path = 0; /* Null - open root of share */ |
1279 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
064f6047 PS |
1280 | struct cifs_open_parms oparms; |
1281 | struct cifs_fid fid; | |
1282 | ||
1283 | oparms.tcon = tcon; | |
1284 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
1285 | oparms.disposition = FILE_OPEN; | |
1286 | oparms.create_options = 0; | |
1287 | oparms.fid = &fid; | |
9cbc0b73 | 1288 | oparms.reconnect = false; |
6fc05c25 | 1289 | |
b42bf888 | 1290 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); |
6fc05c25 PS |
1291 | if (rc) |
1292 | return rc; | |
1293 | buf->f_type = SMB2_MAGIC_NUMBER; | |
064f6047 PS |
1294 | rc = SMB2_QFS_info(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
1295 | buf); | |
1296 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
6fc05c25 PS |
1297 | return rc; |
1298 | } | |
1299 | ||
027e8eec PS |
1300 | static bool |
1301 | smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2) | |
1302 | { | |
1303 | return ob1->fid.persistent_fid == ob2->fid.persistent_fid && | |
1304 | ob1->fid.volatile_fid == ob2->fid.volatile_fid; | |
1305 | } | |
1306 | ||
f7ba7fe6 PS |
1307 | static int |
1308 | smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, | |
1309 | __u64 length, __u32 type, int lock, int unlock, bool wait) | |
1310 | { | |
1311 | if (unlock && !lock) | |
1312 | type = SMB2_LOCKFLAG_UNLOCK; | |
1313 | return SMB2_lock(xid, tlink_tcon(cfile->tlink), | |
1314 | cfile->fid.persistent_fid, cfile->fid.volatile_fid, | |
1315 | current->tgid, length, offset, type, wait); | |
1316 | } | |
1317 | ||
b8c32dbb PS |
1318 | static void |
1319 | smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid) | |
1320 | { | |
1321 | memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE); | |
1322 | } | |
1323 | ||
1324 | static void | |
1325 | smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid) | |
1326 | { | |
1327 | memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE); | |
1328 | } | |
1329 | ||
1330 | static void | |
1331 | smb2_new_lease_key(struct cifs_fid *fid) | |
1332 | { | |
fa70b87c | 1333 | generate_random_uuid(fid->lease_key); |
b8c32dbb PS |
1334 | } |
1335 | ||
9d49640a AA |
1336 | static int |
1337 | smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, | |
1338 | const char *search_name, | |
1339 | struct dfs_info3_param **target_nodes, | |
1340 | unsigned int *num_of_nodes, | |
1341 | const struct nls_table *nls_codepage, int remap) | |
1342 | { | |
1343 | int rc; | |
1344 | __le16 *utf16_path = NULL; | |
1345 | int utf16_path_len = 0; | |
1346 | struct cifs_tcon *tcon; | |
1347 | struct fsctl_get_dfs_referral_req *dfs_req = NULL; | |
1348 | struct get_dfs_referral_rsp *dfs_rsp = NULL; | |
1349 | u32 dfs_req_size = 0, dfs_rsp_size = 0; | |
1350 | ||
1351 | cifs_dbg(FYI, "smb2_get_dfs_refer path <%s>\n", search_name); | |
1352 | ||
1353 | /* | |
1354 | * Use any tcon from the current session. Here, the first one. | |
1355 | */ | |
1356 | spin_lock(&cifs_tcp_ses_lock); | |
1357 | tcon = list_first_entry_or_null(&ses->tcon_list, struct cifs_tcon, | |
1358 | tcon_list); | |
1359 | if (tcon) | |
1360 | tcon->tc_count++; | |
1361 | spin_unlock(&cifs_tcp_ses_lock); | |
1362 | ||
1363 | if (!tcon) { | |
1364 | cifs_dbg(VFS, "session %p has no tcon available for a dfs referral request\n", | |
1365 | ses); | |
1366 | rc = -ENOTCONN; | |
1367 | goto out; | |
1368 | } | |
1369 | ||
1370 | utf16_path = cifs_strndup_to_utf16(search_name, PATH_MAX, | |
1371 | &utf16_path_len, | |
1372 | nls_codepage, remap); | |
1373 | if (!utf16_path) { | |
1374 | rc = -ENOMEM; | |
1375 | goto out; | |
1376 | } | |
1377 | ||
1378 | dfs_req_size = sizeof(*dfs_req) + utf16_path_len; | |
1379 | dfs_req = kzalloc(dfs_req_size, GFP_KERNEL); | |
1380 | if (!dfs_req) { | |
1381 | rc = -ENOMEM; | |
1382 | goto out; | |
1383 | } | |
1384 | ||
1385 | /* Highest DFS referral version understood */ | |
1386 | dfs_req->MaxReferralLevel = DFS_VERSION; | |
1387 | ||
1388 | /* Path to resolve in an UTF-16 null-terminated string */ | |
1389 | memcpy(dfs_req->RequestFileName, utf16_path, utf16_path_len); | |
1390 | ||
1391 | do { | |
1392 | /* try first with IPC */ | |
1393 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
1394 | FSCTL_DFS_GET_REFERRALS, | |
1395 | true /* is_fsctl */, true /* use_ipc */, | |
1396 | (char *)dfs_req, dfs_req_size, | |
1397 | (char **)&dfs_rsp, &dfs_rsp_size); | |
1398 | if (rc == -ENOTCONN) { | |
1399 | /* try with normal tcon */ | |
1400 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
1401 | FSCTL_DFS_GET_REFERRALS, | |
1402 | true /* is_fsctl */, false /*use_ipc*/, | |
1403 | (char *)dfs_req, dfs_req_size, | |
1404 | (char **)&dfs_rsp, &dfs_rsp_size); | |
1405 | } | |
1406 | } while (rc == -EAGAIN); | |
1407 | ||
1408 | if (rc) { | |
5702591f AA |
1409 | if (rc != -ENOENT) |
1410 | cifs_dbg(VFS, "ioctl error in smb2_get_dfs_refer rc=%d\n", rc); | |
9d49640a AA |
1411 | goto out; |
1412 | } | |
1413 | ||
1414 | rc = parse_dfs_referrals(dfs_rsp, dfs_rsp_size, | |
1415 | num_of_nodes, target_nodes, | |
1416 | nls_codepage, remap, search_name, | |
1417 | true /* is_unicode */); | |
1418 | if (rc) { | |
1419 | cifs_dbg(VFS, "parse error in smb2_get_dfs_refer rc=%d\n", rc); | |
1420 | goto out; | |
1421 | } | |
1422 | ||
1423 | out: | |
1424 | if (tcon) { | |
1425 | spin_lock(&cifs_tcp_ses_lock); | |
1426 | tcon->tc_count--; | |
1427 | spin_unlock(&cifs_tcp_ses_lock); | |
1428 | } | |
1429 | kfree(utf16_path); | |
1430 | kfree(dfs_req); | |
1431 | kfree(dfs_rsp); | |
1432 | return rc; | |
1433 | } | |
7893242e PS |
1434 | #define SMB2_SYMLINK_STRUCT_SIZE \ |
1435 | (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp)) | |
1436 | ||
b42bf888 PS |
1437 | static int |
1438 | smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, | |
1439 | const char *full_path, char **target_path, | |
1440 | struct cifs_sb_info *cifs_sb) | |
1441 | { | |
1442 | int rc; | |
1443 | __le16 *utf16_path; | |
1444 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1445 | struct cifs_open_parms oparms; | |
1446 | struct cifs_fid fid; | |
1447 | struct smb2_err_rsp *err_buf = NULL; | |
1448 | struct smb2_symlink_err_rsp *symlink; | |
7893242e PS |
1449 | unsigned int sub_len; |
1450 | unsigned int sub_offset; | |
1451 | unsigned int print_len; | |
1452 | unsigned int print_offset; | |
b42bf888 PS |
1453 | |
1454 | cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); | |
1455 | ||
1456 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
1457 | if (!utf16_path) | |
1458 | return -ENOMEM; | |
1459 | ||
1460 | oparms.tcon = tcon; | |
1461 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
1462 | oparms.disposition = FILE_OPEN; | |
1463 | oparms.create_options = 0; | |
1464 | oparms.fid = &fid; | |
1465 | oparms.reconnect = false; | |
1466 | ||
1467 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_buf); | |
1468 | ||
1469 | if (!rc || !err_buf) { | |
1470 | kfree(utf16_path); | |
1471 | return -ENOENT; | |
1472 | } | |
7893242e PS |
1473 | |
1474 | if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) || | |
1475 | get_rfc1002_length(err_buf) + 4 < SMB2_SYMLINK_STRUCT_SIZE) { | |
1476 | kfree(utf16_path); | |
1477 | return -ENOENT; | |
1478 | } | |
1479 | ||
b42bf888 PS |
1480 | /* open must fail on symlink - reset rc */ |
1481 | rc = 0; | |
1482 | symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData; | |
1483 | sub_len = le16_to_cpu(symlink->SubstituteNameLength); | |
1484 | sub_offset = le16_to_cpu(symlink->SubstituteNameOffset); | |
7893242e PS |
1485 | print_len = le16_to_cpu(symlink->PrintNameLength); |
1486 | print_offset = le16_to_cpu(symlink->PrintNameOffset); | |
1487 | ||
1488 | if (get_rfc1002_length(err_buf) + 4 < | |
1489 | SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) { | |
1490 | kfree(utf16_path); | |
1491 | return -ENOENT; | |
1492 | } | |
1493 | ||
1494 | if (get_rfc1002_length(err_buf) + 4 < | |
1495 | SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) { | |
1496 | kfree(utf16_path); | |
1497 | return -ENOENT; | |
1498 | } | |
1499 | ||
b42bf888 PS |
1500 | *target_path = cifs_strndup_from_utf16( |
1501 | (char *)symlink->PathBuffer + sub_offset, | |
1502 | sub_len, true, cifs_sb->local_nls); | |
1503 | if (!(*target_path)) { | |
1504 | kfree(utf16_path); | |
1505 | return -ENOMEM; | |
1506 | } | |
1507 | convert_delimiter(*target_path, '/'); | |
1508 | cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); | |
1509 | kfree(utf16_path); | |
1510 | return rc; | |
1511 | } | |
1512 | ||
84908426 | 1513 | #ifdef CONFIG_CIFS_ACL |
2f1afe25 SP |
1514 | static struct cifs_ntsd * |
1515 | get_smb2_acl_by_fid(struct cifs_sb_info *cifs_sb, | |
1516 | const struct cifs_fid *cifsfid, u32 *pacllen) | |
1517 | { | |
1518 | struct cifs_ntsd *pntsd = NULL; | |
1519 | unsigned int xid; | |
1520 | int rc = -EOPNOTSUPP; | |
1521 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
1522 | ||
1523 | if (IS_ERR(tlink)) | |
1524 | return ERR_CAST(tlink); | |
1525 | ||
1526 | xid = get_xid(); | |
1527 | cifs_dbg(FYI, "trying to get acl\n"); | |
1528 | ||
1529 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), cifsfid->persistent_fid, | |
1530 | cifsfid->volatile_fid, (void **)&pntsd, pacllen); | |
1531 | free_xid(xid); | |
1532 | ||
1533 | cifs_put_tlink(tlink); | |
1534 | ||
1535 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
1536 | if (rc) | |
1537 | return ERR_PTR(rc); | |
1538 | return pntsd; | |
1539 | ||
1540 | } | |
1541 | ||
1542 | static struct cifs_ntsd * | |
1543 | get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb, | |
1544 | const char *path, u32 *pacllen) | |
1545 | { | |
1546 | struct cifs_ntsd *pntsd = NULL; | |
1547 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1548 | unsigned int xid; | |
1549 | int rc; | |
1550 | struct cifs_tcon *tcon; | |
1551 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
1552 | struct cifs_fid fid; | |
1553 | struct cifs_open_parms oparms; | |
1554 | __le16 *utf16_path; | |
1555 | ||
1556 | cifs_dbg(FYI, "get smb3 acl for path %s\n", path); | |
1557 | if (IS_ERR(tlink)) | |
1558 | return ERR_CAST(tlink); | |
1559 | ||
1560 | tcon = tlink_tcon(tlink); | |
1561 | xid = get_xid(); | |
1562 | ||
1563 | if (backup_cred(cifs_sb)) | |
709340a0 | 1564 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; |
2f1afe25 SP |
1565 | else |
1566 | oparms.create_options = 0; | |
1567 | ||
1568 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1569 | if (!utf16_path) | |
1570 | return ERR_PTR(-ENOMEM); | |
1571 | ||
1572 | oparms.tcon = tcon; | |
1573 | oparms.desired_access = READ_CONTROL; | |
1574 | oparms.disposition = FILE_OPEN; | |
1575 | oparms.fid = &fid; | |
1576 | oparms.reconnect = false; | |
1577 | ||
1578 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); | |
1579 | kfree(utf16_path); | |
1580 | if (!rc) { | |
1581 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
1582 | fid.volatile_fid, (void **)&pntsd, pacllen); | |
1583 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
1584 | } | |
1585 | ||
1586 | cifs_put_tlink(tlink); | |
1587 | free_xid(xid); | |
1588 | ||
1589 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
1590 | if (rc) | |
1591 | return ERR_PTR(rc); | |
1592 | return pntsd; | |
1593 | } | |
1594 | ||
366ed846 SP |
1595 | #ifdef CONFIG_CIFS_ACL |
1596 | static int | |
1597 | set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen, | |
1598 | struct inode *inode, const char *path, int aclflag) | |
1599 | { | |
1600 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1601 | unsigned int xid; | |
1602 | int rc, access_flags = 0; | |
1603 | struct cifs_tcon *tcon; | |
1604 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
1605 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
1606 | struct cifs_fid fid; | |
1607 | struct cifs_open_parms oparms; | |
1608 | __le16 *utf16_path; | |
1609 | ||
1610 | cifs_dbg(FYI, "set smb3 acl for path %s\n", path); | |
1611 | if (IS_ERR(tlink)) | |
1612 | return PTR_ERR(tlink); | |
1613 | ||
1614 | tcon = tlink_tcon(tlink); | |
1615 | xid = get_xid(); | |
1616 | ||
1617 | if (backup_cred(cifs_sb)) | |
1618 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; | |
1619 | else | |
1620 | oparms.create_options = 0; | |
1621 | ||
1622 | if (aclflag == CIFS_ACL_OWNER || aclflag == CIFS_ACL_GROUP) | |
1623 | access_flags = WRITE_OWNER; | |
1624 | else | |
1625 | access_flags = WRITE_DAC; | |
1626 | ||
1627 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1628 | if (!utf16_path) | |
1629 | return -ENOMEM; | |
1630 | ||
1631 | oparms.tcon = tcon; | |
1632 | oparms.desired_access = access_flags; | |
1633 | oparms.disposition = FILE_OPEN; | |
1634 | oparms.path = path; | |
1635 | oparms.fid = &fid; | |
1636 | oparms.reconnect = false; | |
1637 | ||
1638 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); | |
1639 | kfree(utf16_path); | |
1640 | if (!rc) { | |
1641 | rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
1642 | fid.volatile_fid, pnntsd, acllen, aclflag); | |
1643 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
1644 | } | |
1645 | ||
1646 | cifs_put_tlink(tlink); | |
1647 | free_xid(xid); | |
1648 | return rc; | |
1649 | } | |
1650 | #endif /* CIFS_ACL */ | |
1651 | ||
2f1afe25 SP |
1652 | /* Retrieve an ACL from the server */ |
1653 | static struct cifs_ntsd * | |
1654 | get_smb2_acl(struct cifs_sb_info *cifs_sb, | |
1655 | struct inode *inode, const char *path, | |
1656 | u32 *pacllen) | |
1657 | { | |
1658 | struct cifs_ntsd *pntsd = NULL; | |
1659 | struct cifsFileInfo *open_file = NULL; | |
1660 | ||
1661 | if (inode) | |
1662 | open_file = find_readable_file(CIFS_I(inode), true); | |
1663 | if (!open_file) | |
1664 | return get_smb2_acl_by_path(cifs_sb, path, pacllen); | |
1665 | ||
1666 | pntsd = get_smb2_acl_by_fid(cifs_sb, &open_file->fid, pacllen); | |
1667 | cifsFileInfo_put(open_file); | |
1668 | return pntsd; | |
1669 | } | |
84908426 | 1670 | #endif |
2f1afe25 | 1671 | |
30175628 SF |
1672 | static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon, |
1673 | loff_t offset, loff_t len, bool keep_size) | |
1674 | { | |
1675 | struct inode *inode; | |
1676 | struct cifsInodeInfo *cifsi; | |
1677 | struct cifsFileInfo *cfile = file->private_data; | |
1678 | struct file_zero_data_information fsctl_buf; | |
1679 | long rc; | |
1680 | unsigned int xid; | |
1681 | ||
1682 | xid = get_xid(); | |
1683 | ||
2b0143b5 | 1684 | inode = d_inode(cfile->dentry); |
30175628 SF |
1685 | cifsi = CIFS_I(inode); |
1686 | ||
1687 | /* if file not oplocked can't be sure whether asking to extend size */ | |
1688 | if (!CIFS_CACHE_READ(cifsi)) | |
1689 | if (keep_size == false) | |
1690 | return -EOPNOTSUPP; | |
1691 | ||
2bb93d24 | 1692 | /* |
30175628 SF |
1693 | * Must check if file sparse since fallocate -z (zero range) assumes |
1694 | * non-sparse allocation | |
1695 | */ | |
1696 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) | |
1697 | return -EOPNOTSUPP; | |
1698 | ||
1699 | /* | |
1700 | * need to make sure we are not asked to extend the file since the SMB3 | |
1701 | * fsctl does not change the file size. In the future we could change | |
1702 | * this to zero the first part of the range then set the file size | |
1703 | * which for a non sparse file would zero the newly extended range | |
1704 | */ | |
1705 | if (keep_size == false) | |
1706 | if (i_size_read(inode) < offset + len) | |
1707 | return -EOPNOTSUPP; | |
1708 | ||
1709 | cifs_dbg(FYI, "offset %lld len %lld", offset, len); | |
1710 | ||
1711 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
1712 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
1713 | ||
1714 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1715 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
51146625 AA |
1716 | true /* is_fctl */, false /* use_ipc */, |
1717 | (char *)&fsctl_buf, | |
30175628 SF |
1718 | sizeof(struct file_zero_data_information), NULL, NULL); |
1719 | free_xid(xid); | |
1720 | return rc; | |
1721 | } | |
1722 | ||
31742c5a SF |
1723 | static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon, |
1724 | loff_t offset, loff_t len) | |
1725 | { | |
1726 | struct inode *inode; | |
1727 | struct cifsInodeInfo *cifsi; | |
1728 | struct cifsFileInfo *cfile = file->private_data; | |
1729 | struct file_zero_data_information fsctl_buf; | |
1730 | long rc; | |
1731 | unsigned int xid; | |
1732 | __u8 set_sparse = 1; | |
1733 | ||
1734 | xid = get_xid(); | |
1735 | ||
2b0143b5 | 1736 | inode = d_inode(cfile->dentry); |
31742c5a SF |
1737 | cifsi = CIFS_I(inode); |
1738 | ||
1739 | /* Need to make file sparse, if not already, before freeing range. */ | |
1740 | /* Consider adding equivalent for compressed since it could also work */ | |
1741 | if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse)) | |
1742 | return -EOPNOTSUPP; | |
1743 | ||
1744 | cifs_dbg(FYI, "offset %lld len %lld", offset, len); | |
1745 | ||
1746 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
1747 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
1748 | ||
1749 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1750 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
51146625 AA |
1751 | true /* is_fctl */, false /* use_ipc */, |
1752 | (char *)&fsctl_buf, | |
31742c5a SF |
1753 | sizeof(struct file_zero_data_information), NULL, NULL); |
1754 | free_xid(xid); | |
1755 | return rc; | |
1756 | } | |
1757 | ||
9ccf3216 SF |
1758 | static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, |
1759 | loff_t off, loff_t len, bool keep_size) | |
1760 | { | |
1761 | struct inode *inode; | |
1762 | struct cifsInodeInfo *cifsi; | |
1763 | struct cifsFileInfo *cfile = file->private_data; | |
1764 | long rc = -EOPNOTSUPP; | |
1765 | unsigned int xid; | |
1766 | ||
1767 | xid = get_xid(); | |
1768 | ||
2b0143b5 | 1769 | inode = d_inode(cfile->dentry); |
9ccf3216 SF |
1770 | cifsi = CIFS_I(inode); |
1771 | ||
1772 | /* if file not oplocked can't be sure whether asking to extend size */ | |
1773 | if (!CIFS_CACHE_READ(cifsi)) | |
1774 | if (keep_size == false) | |
1775 | return -EOPNOTSUPP; | |
1776 | ||
1777 | /* | |
1778 | * Files are non-sparse by default so falloc may be a no-op | |
1779 | * Must check if file sparse. If not sparse, and not extending | |
1780 | * then no need to do anything since file already allocated | |
1781 | */ | |
1782 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) { | |
1783 | if (keep_size == true) | |
1784 | return 0; | |
1785 | /* check if extending file */ | |
1786 | else if (i_size_read(inode) >= off + len) | |
1787 | /* not extending file and already not sparse */ | |
1788 | return 0; | |
1789 | /* BB: in future add else clause to extend file */ | |
1790 | else | |
1791 | return -EOPNOTSUPP; | |
1792 | } | |
1793 | ||
1794 | if ((keep_size == true) || (i_size_read(inode) >= off + len)) { | |
1795 | /* | |
1796 | * Check if falloc starts within first few pages of file | |
1797 | * and ends within a few pages of the end of file to | |
1798 | * ensure that most of file is being forced to be | |
1799 | * fallocated now. If so then setting whole file sparse | |
1800 | * ie potentially making a few extra pages at the beginning | |
1801 | * or end of the file non-sparse via set_sparse is harmless. | |
1802 | */ | |
1803 | if ((off > 8192) || (off + len + 8192 < i_size_read(inode))) | |
1804 | return -EOPNOTSUPP; | |
1805 | ||
1806 | rc = smb2_set_sparse(xid, tcon, cfile, inode, false); | |
1807 | } | |
1808 | /* BB: else ... in future add code to extend file and set sparse */ | |
1809 | ||
1810 | ||
1811 | free_xid(xid); | |
1812 | return rc; | |
1813 | } | |
1814 | ||
1815 | ||
31742c5a SF |
1816 | static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode, |
1817 | loff_t off, loff_t len) | |
1818 | { | |
1819 | /* KEEP_SIZE already checked for by do_fallocate */ | |
1820 | if (mode & FALLOC_FL_PUNCH_HOLE) | |
1821 | return smb3_punch_hole(file, tcon, off, len); | |
30175628 SF |
1822 | else if (mode & FALLOC_FL_ZERO_RANGE) { |
1823 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1824 | return smb3_zero_range(file, tcon, off, len, true); | |
1825 | return smb3_zero_range(file, tcon, off, len, false); | |
9ccf3216 SF |
1826 | } else if (mode == FALLOC_FL_KEEP_SIZE) |
1827 | return smb3_simple_falloc(file, tcon, off, len, true); | |
1828 | else if (mode == 0) | |
1829 | return smb3_simple_falloc(file, tcon, off, len, false); | |
31742c5a SF |
1830 | |
1831 | return -EOPNOTSUPP; | |
1832 | } | |
1833 | ||
c11f1df5 SP |
1834 | static void |
1835 | smb2_downgrade_oplock(struct TCP_Server_Info *server, | |
1836 | struct cifsInodeInfo *cinode, bool set_level2) | |
1837 | { | |
1838 | if (set_level2) | |
1839 | server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II, | |
1840 | 0, NULL); | |
1841 | else | |
1842 | server->ops->set_oplock_level(cinode, 0, 0, NULL); | |
1843 | } | |
1844 | ||
53ef1016 | 1845 | static void |
42873b0a PS |
1846 | smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
1847 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
1848 | { |
1849 | oplock &= 0xFF; | |
1850 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
1851 | return; | |
1852 | if (oplock == SMB2_OPLOCK_LEVEL_BATCH) { | |
42873b0a | 1853 | cinode->oplock = CIFS_CACHE_RHW_FLG; |
53ef1016 PS |
1854 | cifs_dbg(FYI, "Batch Oplock granted on inode %p\n", |
1855 | &cinode->vfs_inode); | |
1856 | } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) { | |
42873b0a | 1857 | cinode->oplock = CIFS_CACHE_RW_FLG; |
53ef1016 PS |
1858 | cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n", |
1859 | &cinode->vfs_inode); | |
1860 | } else if (oplock == SMB2_OPLOCK_LEVEL_II) { | |
1861 | cinode->oplock = CIFS_CACHE_READ_FLG; | |
1862 | cifs_dbg(FYI, "Level II Oplock granted on inode %p\n", | |
1863 | &cinode->vfs_inode); | |
1864 | } else | |
1865 | cinode->oplock = 0; | |
1866 | } | |
1867 | ||
1868 | static void | |
42873b0a PS |
1869 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
1870 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
1871 | { |
1872 | char message[5] = {0}; | |
1873 | ||
1874 | oplock &= 0xFF; | |
1875 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
1876 | return; | |
1877 | ||
1878 | cinode->oplock = 0; | |
1879 | if (oplock & SMB2_LEASE_READ_CACHING_HE) { | |
1880 | cinode->oplock |= CIFS_CACHE_READ_FLG; | |
1881 | strcat(message, "R"); | |
1882 | } | |
1883 | if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) { | |
1884 | cinode->oplock |= CIFS_CACHE_HANDLE_FLG; | |
1885 | strcat(message, "H"); | |
1886 | } | |
1887 | if (oplock & SMB2_LEASE_WRITE_CACHING_HE) { | |
1888 | cinode->oplock |= CIFS_CACHE_WRITE_FLG; | |
1889 | strcat(message, "W"); | |
1890 | } | |
1891 | if (!cinode->oplock) | |
1892 | strcat(message, "None"); | |
1893 | cifs_dbg(FYI, "%s Lease granted on inode %p\n", message, | |
1894 | &cinode->vfs_inode); | |
1895 | } | |
1896 | ||
42873b0a PS |
1897 | static void |
1898 | smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, | |
1899 | unsigned int epoch, bool *purge_cache) | |
1900 | { | |
1901 | unsigned int old_oplock = cinode->oplock; | |
1902 | ||
1903 | smb21_set_oplock_level(cinode, oplock, epoch, purge_cache); | |
1904 | ||
1905 | if (purge_cache) { | |
1906 | *purge_cache = false; | |
1907 | if (old_oplock == CIFS_CACHE_READ_FLG) { | |
1908 | if (cinode->oplock == CIFS_CACHE_READ_FLG && | |
1909 | (epoch - cinode->epoch > 0)) | |
1910 | *purge_cache = true; | |
1911 | else if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
1912 | (epoch - cinode->epoch > 1)) | |
1913 | *purge_cache = true; | |
1914 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
1915 | (epoch - cinode->epoch > 1)) | |
1916 | *purge_cache = true; | |
1917 | else if (cinode->oplock == 0 && | |
1918 | (epoch - cinode->epoch > 0)) | |
1919 | *purge_cache = true; | |
1920 | } else if (old_oplock == CIFS_CACHE_RH_FLG) { | |
1921 | if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
1922 | (epoch - cinode->epoch > 0)) | |
1923 | *purge_cache = true; | |
1924 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
1925 | (epoch - cinode->epoch > 1)) | |
1926 | *purge_cache = true; | |
1927 | } | |
1928 | cinode->epoch = epoch; | |
1929 | } | |
1930 | } | |
1931 | ||
53ef1016 PS |
1932 | static bool |
1933 | smb2_is_read_op(__u32 oplock) | |
1934 | { | |
1935 | return oplock == SMB2_OPLOCK_LEVEL_II; | |
1936 | } | |
1937 | ||
1938 | static bool | |
1939 | smb21_is_read_op(__u32 oplock) | |
1940 | { | |
1941 | return (oplock & SMB2_LEASE_READ_CACHING_HE) && | |
1942 | !(oplock & SMB2_LEASE_WRITE_CACHING_HE); | |
1943 | } | |
1944 | ||
f047390a PS |
1945 | static __le32 |
1946 | map_oplock_to_lease(u8 oplock) | |
1947 | { | |
1948 | if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
1949 | return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING; | |
1950 | else if (oplock == SMB2_OPLOCK_LEVEL_II) | |
1951 | return SMB2_LEASE_READ_CACHING; | |
1952 | else if (oplock == SMB2_OPLOCK_LEVEL_BATCH) | |
1953 | return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING | | |
1954 | SMB2_LEASE_WRITE_CACHING; | |
1955 | return 0; | |
1956 | } | |
1957 | ||
a41a28bd PS |
1958 | static char * |
1959 | smb2_create_lease_buf(u8 *lease_key, u8 oplock) | |
1960 | { | |
1961 | struct create_lease *buf; | |
1962 | ||
1963 | buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL); | |
1964 | if (!buf) | |
1965 | return NULL; | |
1966 | ||
1967 | buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key)); | |
1968 | buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8))); | |
f047390a | 1969 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
a41a28bd PS |
1970 | |
1971 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
1972 | (struct create_lease, lcontext)); | |
1973 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context)); | |
1974 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
1975 | (struct create_lease, Name)); | |
1976 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 1977 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
a41a28bd PS |
1978 | buf->Name[0] = 'R'; |
1979 | buf->Name[1] = 'q'; | |
1980 | buf->Name[2] = 'L'; | |
1981 | buf->Name[3] = 's'; | |
1982 | return (char *)buf; | |
1983 | } | |
1984 | ||
f047390a PS |
1985 | static char * |
1986 | smb3_create_lease_buf(u8 *lease_key, u8 oplock) | |
1987 | { | |
1988 | struct create_lease_v2 *buf; | |
1989 | ||
1990 | buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL); | |
1991 | if (!buf) | |
1992 | return NULL; | |
1993 | ||
1994 | buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key)); | |
1995 | buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8))); | |
1996 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); | |
1997 | ||
1998 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
1999 | (struct create_lease_v2, lcontext)); | |
2000 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2)); | |
2001 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
2002 | (struct create_lease_v2, Name)); | |
2003 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 2004 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
f047390a PS |
2005 | buf->Name[0] = 'R'; |
2006 | buf->Name[1] = 'q'; | |
2007 | buf->Name[2] = 'L'; | |
2008 | buf->Name[3] = 's'; | |
2009 | return (char *)buf; | |
2010 | } | |
2011 | ||
b5c7cde3 | 2012 | static __u8 |
42873b0a | 2013 | smb2_parse_lease_buf(void *buf, unsigned int *epoch) |
b5c7cde3 PS |
2014 | { |
2015 | struct create_lease *lc = (struct create_lease *)buf; | |
2016 | ||
42873b0a | 2017 | *epoch = 0; /* not used */ |
b5c7cde3 PS |
2018 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
2019 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
2020 | return le32_to_cpu(lc->lcontext.LeaseState); | |
2021 | } | |
2022 | ||
f047390a | 2023 | static __u8 |
42873b0a | 2024 | smb3_parse_lease_buf(void *buf, unsigned int *epoch) |
f047390a PS |
2025 | { |
2026 | struct create_lease_v2 *lc = (struct create_lease_v2 *)buf; | |
2027 | ||
42873b0a | 2028 | *epoch = le16_to_cpu(lc->lcontext.Epoch); |
f047390a PS |
2029 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
2030 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
2031 | return le32_to_cpu(lc->lcontext.LeaseState); | |
2032 | } | |
2033 | ||
7f6c5008 PS |
2034 | static unsigned int |
2035 | smb2_wp_retry_size(struct inode *inode) | |
2036 | { | |
2037 | return min_t(unsigned int, CIFS_SB(inode->i_sb)->wsize, | |
2038 | SMB2_MAX_BUFFER_SIZE); | |
2039 | } | |
2040 | ||
52755808 PS |
2041 | static bool |
2042 | smb2_dir_needs_close(struct cifsFileInfo *cfile) | |
2043 | { | |
2044 | return !cfile->invalidHandle; | |
2045 | } | |
2046 | ||
026e93dc PS |
2047 | static void |
2048 | fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, struct smb_rqst *old_rq) | |
2049 | { | |
2050 | struct smb2_sync_hdr *shdr = | |
2051 | (struct smb2_sync_hdr *)old_rq->rq_iov[1].iov_base; | |
2052 | unsigned int orig_len = get_rfc1002_length(old_rq->rq_iov[0].iov_base); | |
2053 | ||
2054 | memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr)); | |
2055 | tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; | |
2056 | tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); | |
2057 | tr_hdr->Flags = cpu_to_le16(0x01); | |
2058 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES128CMM_NONCE); | |
2059 | memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8); | |
2060 | inc_rfc1001_len(tr_hdr, sizeof(struct smb2_transform_hdr) - 4); | |
2061 | inc_rfc1001_len(tr_hdr, orig_len); | |
2062 | } | |
2063 | ||
2064 | static struct scatterlist * | |
2065 | init_sg(struct smb_rqst *rqst, u8 *sign) | |
2066 | { | |
2067 | unsigned int sg_len = rqst->rq_nvec + rqst->rq_npages + 1; | |
2068 | unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 24; | |
2069 | struct scatterlist *sg; | |
2070 | unsigned int i; | |
2071 | unsigned int j; | |
2072 | ||
2073 | sg = kmalloc_array(sg_len, sizeof(struct scatterlist), GFP_KERNEL); | |
2074 | if (!sg) | |
2075 | return NULL; | |
2076 | ||
2077 | sg_init_table(sg, sg_len); | |
2078 | sg_set_buf(&sg[0], rqst->rq_iov[0].iov_base + 24, assoc_data_len); | |
2079 | for (i = 1; i < rqst->rq_nvec; i++) | |
2080 | sg_set_buf(&sg[i], rqst->rq_iov[i].iov_base, | |
2081 | rqst->rq_iov[i].iov_len); | |
2082 | for (j = 0; i < sg_len - 1; i++, j++) { | |
2083 | unsigned int len = (j < rqst->rq_npages - 1) ? rqst->rq_pagesz | |
2084 | : rqst->rq_tailsz; | |
2085 | sg_set_page(&sg[i], rqst->rq_pages[j], len, 0); | |
2086 | } | |
2087 | sg_set_buf(&sg[sg_len - 1], sign, SMB2_SIGNATURE_SIZE); | |
2088 | return sg; | |
2089 | } | |
2090 | ||
61cfac6f PS |
2091 | static int |
2092 | smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) | |
2093 | { | |
2094 | struct cifs_ses *ses; | |
2095 | u8 *ses_enc_key; | |
2096 | ||
2097 | spin_lock(&cifs_tcp_ses_lock); | |
2098 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { | |
2099 | if (ses->Suid != ses_id) | |
2100 | continue; | |
2101 | ses_enc_key = enc ? ses->smb3encryptionkey : | |
2102 | ses->smb3decryptionkey; | |
2103 | memcpy(key, ses_enc_key, SMB3_SIGN_KEY_SIZE); | |
2104 | spin_unlock(&cifs_tcp_ses_lock); | |
2105 | return 0; | |
2106 | } | |
2107 | spin_unlock(&cifs_tcp_ses_lock); | |
2108 | ||
2109 | return 1; | |
2110 | } | |
026e93dc PS |
2111 | /* |
2112 | * Encrypt or decrypt @rqst message. @rqst has the following format: | |
2113 | * iov[0] - transform header (associate data), | |
2114 | * iov[1-N] and pages - data to encrypt. | |
2115 | * On success return encrypted data in iov[1-N] and pages, leave iov[0] | |
2116 | * untouched. | |
2117 | */ | |
2118 | static int | |
2119 | crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) | |
2120 | { | |
2121 | struct smb2_transform_hdr *tr_hdr = | |
2122 | (struct smb2_transform_hdr *)rqst->rq_iov[0].iov_base; | |
2123 | unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 24; | |
026e93dc PS |
2124 | int rc = 0; |
2125 | struct scatterlist *sg; | |
2126 | u8 sign[SMB2_SIGNATURE_SIZE] = {}; | |
61cfac6f | 2127 | u8 key[SMB3_SIGN_KEY_SIZE]; |
026e93dc PS |
2128 | struct aead_request *req; |
2129 | char *iv; | |
2130 | unsigned int iv_len; | |
a5186b85 | 2131 | DECLARE_CRYPTO_WAIT(wait); |
026e93dc PS |
2132 | struct crypto_aead *tfm; |
2133 | unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
2134 | ||
61cfac6f PS |
2135 | rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key); |
2136 | if (rc) { | |
2137 | cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__, | |
2138 | enc ? "en" : "de"); | |
026e93dc PS |
2139 | return 0; |
2140 | } | |
2141 | ||
2142 | rc = smb3_crypto_aead_allocate(server); | |
2143 | if (rc) { | |
2144 | cifs_dbg(VFS, "%s: crypto alloc failed\n", __func__); | |
2145 | return rc; | |
2146 | } | |
2147 | ||
2148 | tfm = enc ? server->secmech.ccmaesencrypt : | |
2149 | server->secmech.ccmaesdecrypt; | |
61cfac6f | 2150 | rc = crypto_aead_setkey(tfm, key, SMB3_SIGN_KEY_SIZE); |
026e93dc PS |
2151 | if (rc) { |
2152 | cifs_dbg(VFS, "%s: Failed to set aead key %d\n", __func__, rc); | |
2153 | return rc; | |
2154 | } | |
2155 | ||
2156 | rc = crypto_aead_setauthsize(tfm, SMB2_SIGNATURE_SIZE); | |
2157 | if (rc) { | |
2158 | cifs_dbg(VFS, "%s: Failed to set authsize %d\n", __func__, rc); | |
2159 | return rc; | |
2160 | } | |
2161 | ||
2162 | req = aead_request_alloc(tfm, GFP_KERNEL); | |
2163 | if (!req) { | |
2164 | cifs_dbg(VFS, "%s: Failed to alloc aead request", __func__); | |
2165 | return -ENOMEM; | |
2166 | } | |
2167 | ||
2168 | if (!enc) { | |
2169 | memcpy(sign, &tr_hdr->Signature, SMB2_SIGNATURE_SIZE); | |
2170 | crypt_len += SMB2_SIGNATURE_SIZE; | |
2171 | } | |
2172 | ||
2173 | sg = init_sg(rqst, sign); | |
2174 | if (!sg) { | |
517a6e43 CJ |
2175 | cifs_dbg(VFS, "%s: Failed to init sg", __func__); |
2176 | rc = -ENOMEM; | |
026e93dc PS |
2177 | goto free_req; |
2178 | } | |
2179 | ||
2180 | iv_len = crypto_aead_ivsize(tfm); | |
2181 | iv = kzalloc(iv_len, GFP_KERNEL); | |
2182 | if (!iv) { | |
2183 | cifs_dbg(VFS, "%s: Failed to alloc IV", __func__); | |
517a6e43 | 2184 | rc = -ENOMEM; |
026e93dc PS |
2185 | goto free_sg; |
2186 | } | |
2187 | iv[0] = 3; | |
2188 | memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES128CMM_NONCE); | |
2189 | ||
2190 | aead_request_set_crypt(req, sg, sg, crypt_len, iv); | |
2191 | aead_request_set_ad(req, assoc_data_len); | |
2192 | ||
2193 | aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, | |
a5186b85 | 2194 | crypto_req_done, &wait); |
026e93dc | 2195 | |
a5186b85 GBY |
2196 | rc = crypto_wait_req(enc ? crypto_aead_encrypt(req) |
2197 | : crypto_aead_decrypt(req), &wait); | |
026e93dc PS |
2198 | |
2199 | if (!rc && enc) | |
2200 | memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE); | |
2201 | ||
2202 | kfree(iv); | |
2203 | free_sg: | |
2204 | kfree(sg); | |
2205 | free_req: | |
2206 | kfree(req); | |
2207 | return rc; | |
2208 | } | |
2209 | ||
2210 | static int | |
2211 | smb3_init_transform_rq(struct TCP_Server_Info *server, struct smb_rqst *new_rq, | |
2212 | struct smb_rqst *old_rq) | |
2213 | { | |
2214 | struct kvec *iov; | |
2215 | struct page **pages; | |
2216 | struct smb2_transform_hdr *tr_hdr; | |
2217 | unsigned int npages = old_rq->rq_npages; | |
2218 | int i; | |
2219 | int rc = -ENOMEM; | |
2220 | ||
2221 | pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); | |
2222 | if (!pages) | |
2223 | return rc; | |
2224 | ||
2225 | new_rq->rq_pages = pages; | |
2226 | new_rq->rq_npages = old_rq->rq_npages; | |
2227 | new_rq->rq_pagesz = old_rq->rq_pagesz; | |
2228 | new_rq->rq_tailsz = old_rq->rq_tailsz; | |
2229 | ||
2230 | for (i = 0; i < npages; i++) { | |
2231 | pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
2232 | if (!pages[i]) | |
2233 | goto err_free_pages; | |
2234 | } | |
2235 | ||
2236 | iov = kmalloc_array(old_rq->rq_nvec, sizeof(struct kvec), GFP_KERNEL); | |
2237 | if (!iov) | |
2238 | goto err_free_pages; | |
2239 | ||
2240 | /* copy all iovs from the old except the 1st one (rfc1002 length) */ | |
2241 | memcpy(&iov[1], &old_rq->rq_iov[1], | |
2242 | sizeof(struct kvec) * (old_rq->rq_nvec - 1)); | |
2243 | new_rq->rq_iov = iov; | |
2244 | new_rq->rq_nvec = old_rq->rq_nvec; | |
2245 | ||
2246 | tr_hdr = kmalloc(sizeof(struct smb2_transform_hdr), GFP_KERNEL); | |
2247 | if (!tr_hdr) | |
2248 | goto err_free_iov; | |
2249 | ||
2250 | /* fill the 1st iov with a transform header */ | |
2251 | fill_transform_hdr(tr_hdr, old_rq); | |
2252 | new_rq->rq_iov[0].iov_base = tr_hdr; | |
2253 | new_rq->rq_iov[0].iov_len = sizeof(struct smb2_transform_hdr); | |
2254 | ||
2255 | /* copy pages form the old */ | |
2256 | for (i = 0; i < npages; i++) { | |
2257 | char *dst = kmap(new_rq->rq_pages[i]); | |
2258 | char *src = kmap(old_rq->rq_pages[i]); | |
2259 | unsigned int len = (i < npages - 1) ? new_rq->rq_pagesz : | |
2260 | new_rq->rq_tailsz; | |
2261 | memcpy(dst, src, len); | |
2262 | kunmap(new_rq->rq_pages[i]); | |
2263 | kunmap(old_rq->rq_pages[i]); | |
2264 | } | |
2265 | ||
2266 | rc = crypt_message(server, new_rq, 1); | |
2267 | cifs_dbg(FYI, "encrypt message returned %d", rc); | |
2268 | if (rc) | |
2269 | goto err_free_tr_hdr; | |
2270 | ||
2271 | return rc; | |
2272 | ||
2273 | err_free_tr_hdr: | |
2274 | kfree(tr_hdr); | |
2275 | err_free_iov: | |
2276 | kfree(iov); | |
2277 | err_free_pages: | |
2278 | for (i = i - 1; i >= 0; i--) | |
2279 | put_page(pages[i]); | |
2280 | kfree(pages); | |
2281 | return rc; | |
2282 | } | |
2283 | ||
2284 | static void | |
2285 | smb3_free_transform_rq(struct smb_rqst *rqst) | |
2286 | { | |
2287 | int i = rqst->rq_npages - 1; | |
2288 | ||
2289 | for (; i >= 0; i--) | |
2290 | put_page(rqst->rq_pages[i]); | |
2291 | kfree(rqst->rq_pages); | |
2292 | /* free transform header */ | |
2293 | kfree(rqst->rq_iov[0].iov_base); | |
2294 | kfree(rqst->rq_iov); | |
2295 | } | |
2296 | ||
4326ed2f PS |
2297 | static int |
2298 | smb3_is_transform_hdr(void *buf) | |
2299 | { | |
2300 | struct smb2_transform_hdr *trhdr = buf; | |
2301 | ||
2302 | return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM; | |
2303 | } | |
2304 | ||
2305 | static int | |
2306 | decrypt_raw_data(struct TCP_Server_Info *server, char *buf, | |
2307 | unsigned int buf_data_size, struct page **pages, | |
2308 | unsigned int npages, unsigned int page_data_size) | |
2309 | { | |
2310 | struct kvec iov[2]; | |
2311 | struct smb_rqst rqst = {NULL}; | |
2312 | struct smb2_hdr *hdr; | |
2313 | int rc; | |
2314 | ||
2315 | iov[0].iov_base = buf; | |
2316 | iov[0].iov_len = sizeof(struct smb2_transform_hdr); | |
2317 | iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr); | |
2318 | iov[1].iov_len = buf_data_size; | |
2319 | ||
2320 | rqst.rq_iov = iov; | |
2321 | rqst.rq_nvec = 2; | |
2322 | rqst.rq_pages = pages; | |
2323 | rqst.rq_npages = npages; | |
2324 | rqst.rq_pagesz = PAGE_SIZE; | |
2325 | rqst.rq_tailsz = (page_data_size % PAGE_SIZE) ? : PAGE_SIZE; | |
2326 | ||
2327 | rc = crypt_message(server, &rqst, 0); | |
2328 | cifs_dbg(FYI, "decrypt message returned %d\n", rc); | |
2329 | ||
2330 | if (rc) | |
2331 | return rc; | |
2332 | ||
2333 | memmove(buf + 4, iov[1].iov_base, buf_data_size); | |
2334 | hdr = (struct smb2_hdr *)buf; | |
2335 | hdr->smb2_buf_length = cpu_to_be32(buf_data_size + page_data_size); | |
2336 | server->total_read = buf_data_size + page_data_size + 4; | |
2337 | ||
2338 | return rc; | |
2339 | } | |
2340 | ||
c42a6abe PS |
2341 | static int |
2342 | read_data_into_pages(struct TCP_Server_Info *server, struct page **pages, | |
2343 | unsigned int npages, unsigned int len) | |
2344 | { | |
2345 | int i; | |
2346 | int length; | |
2347 | ||
2348 | for (i = 0; i < npages; i++) { | |
2349 | struct page *page = pages[i]; | |
2350 | size_t n; | |
2351 | ||
2352 | n = len; | |
2353 | if (len >= PAGE_SIZE) { | |
2354 | /* enough data to fill the page */ | |
2355 | n = PAGE_SIZE; | |
2356 | len -= n; | |
2357 | } else { | |
2358 | zero_user(page, len, PAGE_SIZE - len); | |
2359 | len = 0; | |
2360 | } | |
2361 | length = cifs_read_page_from_socket(server, page, n); | |
2362 | if (length < 0) | |
2363 | return length; | |
2364 | server->total_read += length; | |
2365 | } | |
2366 | ||
2367 | return 0; | |
2368 | } | |
2369 | ||
2370 | static int | |
2371 | init_read_bvec(struct page **pages, unsigned int npages, unsigned int data_size, | |
2372 | unsigned int cur_off, struct bio_vec **page_vec) | |
2373 | { | |
2374 | struct bio_vec *bvec; | |
2375 | int i; | |
2376 | ||
2377 | bvec = kcalloc(npages, sizeof(struct bio_vec), GFP_KERNEL); | |
2378 | if (!bvec) | |
2379 | return -ENOMEM; | |
2380 | ||
2381 | for (i = 0; i < npages; i++) { | |
2382 | bvec[i].bv_page = pages[i]; | |
2383 | bvec[i].bv_offset = (i == 0) ? cur_off : 0; | |
2384 | bvec[i].bv_len = min_t(unsigned int, PAGE_SIZE, data_size); | |
2385 | data_size -= bvec[i].bv_len; | |
2386 | } | |
2387 | ||
2388 | if (data_size != 0) { | |
2389 | cifs_dbg(VFS, "%s: something went wrong\n", __func__); | |
2390 | kfree(bvec); | |
2391 | return -EIO; | |
2392 | } | |
2393 | ||
2394 | *page_vec = bvec; | |
2395 | return 0; | |
2396 | } | |
2397 | ||
4326ed2f PS |
2398 | static int |
2399 | handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, | |
2400 | char *buf, unsigned int buf_len, struct page **pages, | |
2401 | unsigned int npages, unsigned int page_data_size) | |
2402 | { | |
2403 | unsigned int data_offset; | |
2404 | unsigned int data_len; | |
c42a6abe PS |
2405 | unsigned int cur_off; |
2406 | unsigned int cur_page_idx; | |
2407 | unsigned int pad_len; | |
4326ed2f PS |
2408 | struct cifs_readdata *rdata = mid->callback_data; |
2409 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); | |
2410 | struct bio_vec *bvec = NULL; | |
2411 | struct iov_iter iter; | |
2412 | struct kvec iov; | |
2413 | int length; | |
2414 | ||
2415 | if (shdr->Command != SMB2_READ) { | |
2416 | cifs_dbg(VFS, "only big read responses are supported\n"); | |
2417 | return -ENOTSUPP; | |
2418 | } | |
2419 | ||
511c54a2 PS |
2420 | if (server->ops->is_session_expired && |
2421 | server->ops->is_session_expired(buf)) { | |
2422 | cifs_reconnect(server); | |
2423 | wake_up(&server->response_q); | |
2424 | return -1; | |
2425 | } | |
2426 | ||
4326ed2f PS |
2427 | if (server->ops->is_status_pending && |
2428 | server->ops->is_status_pending(buf, server, 0)) | |
2429 | return -1; | |
2430 | ||
2431 | rdata->result = server->ops->map_error(buf, false); | |
2432 | if (rdata->result != 0) { | |
2433 | cifs_dbg(FYI, "%s: server returned error %d\n", | |
2434 | __func__, rdata->result); | |
2435 | dequeue_mid(mid, rdata->result); | |
2436 | return 0; | |
2437 | } | |
2438 | ||
2439 | data_offset = server->ops->read_data_offset(buf) + 4; | |
2440 | data_len = server->ops->read_data_length(buf); | |
2441 | ||
2442 | if (data_offset < server->vals->read_rsp_size) { | |
2443 | /* | |
2444 | * win2k8 sometimes sends an offset of 0 when the read | |
2445 | * is beyond the EOF. Treat it as if the data starts just after | |
2446 | * the header. | |
2447 | */ | |
2448 | cifs_dbg(FYI, "%s: data offset (%u) inside read response header\n", | |
2449 | __func__, data_offset); | |
2450 | data_offset = server->vals->read_rsp_size; | |
2451 | } else if (data_offset > MAX_CIFS_SMALL_BUFFER_SIZE) { | |
2452 | /* data_offset is beyond the end of smallbuf */ | |
2453 | cifs_dbg(FYI, "%s: data offset (%u) beyond end of smallbuf\n", | |
2454 | __func__, data_offset); | |
2455 | rdata->result = -EIO; | |
2456 | dequeue_mid(mid, rdata->result); | |
2457 | return 0; | |
2458 | } | |
2459 | ||
c42a6abe PS |
2460 | pad_len = data_offset - server->vals->read_rsp_size; |
2461 | ||
4326ed2f PS |
2462 | if (buf_len <= data_offset) { |
2463 | /* read response payload is in pages */ | |
c42a6abe PS |
2464 | cur_page_idx = pad_len / PAGE_SIZE; |
2465 | cur_off = pad_len % PAGE_SIZE; | |
2466 | ||
2467 | if (cur_page_idx != 0) { | |
2468 | /* data offset is beyond the 1st page of response */ | |
2469 | cifs_dbg(FYI, "%s: data offset (%u) beyond 1st page of response\n", | |
2470 | __func__, data_offset); | |
2471 | rdata->result = -EIO; | |
2472 | dequeue_mid(mid, rdata->result); | |
2473 | return 0; | |
2474 | } | |
2475 | ||
2476 | if (data_len > page_data_size - pad_len) { | |
2477 | /* data_len is corrupt -- discard frame */ | |
2478 | rdata->result = -EIO; | |
2479 | dequeue_mid(mid, rdata->result); | |
2480 | return 0; | |
2481 | } | |
2482 | ||
2483 | rdata->result = init_read_bvec(pages, npages, page_data_size, | |
2484 | cur_off, &bvec); | |
2485 | if (rdata->result != 0) { | |
2486 | dequeue_mid(mid, rdata->result); | |
2487 | return 0; | |
2488 | } | |
2489 | ||
2490 | iov_iter_bvec(&iter, WRITE | ITER_BVEC, bvec, npages, data_len); | |
4326ed2f PS |
2491 | } else if (buf_len >= data_offset + data_len) { |
2492 | /* read response payload is in buf */ | |
2493 | WARN_ONCE(npages > 0, "read data can be either in buf or in pages"); | |
2494 | iov.iov_base = buf + data_offset; | |
2495 | iov.iov_len = data_len; | |
2496 | iov_iter_kvec(&iter, WRITE | ITER_KVEC, &iov, 1, data_len); | |
2497 | } else { | |
2498 | /* read response payload cannot be in both buf and pages */ | |
2499 | WARN_ONCE(1, "buf can not contain only a part of read data"); | |
2500 | rdata->result = -EIO; | |
2501 | dequeue_mid(mid, rdata->result); | |
2502 | return 0; | |
2503 | } | |
2504 | ||
2505 | /* set up first iov for signature check */ | |
2506 | rdata->iov[0].iov_base = buf; | |
2507 | rdata->iov[0].iov_len = 4; | |
2508 | rdata->iov[1].iov_base = buf + 4; | |
2509 | rdata->iov[1].iov_len = server->vals->read_rsp_size - 4; | |
2510 | cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", | |
2511 | rdata->iov[0].iov_base, server->vals->read_rsp_size); | |
2512 | ||
2513 | length = rdata->copy_into_pages(server, rdata, &iter); | |
2514 | ||
2515 | kfree(bvec); | |
2516 | ||
2517 | if (length < 0) | |
2518 | return length; | |
2519 | ||
2520 | dequeue_mid(mid, false); | |
2521 | return length; | |
2522 | } | |
2523 | ||
c42a6abe PS |
2524 | static int |
2525 | receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid) | |
2526 | { | |
2527 | char *buf = server->smallbuf; | |
2528 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; | |
2529 | unsigned int npages; | |
2530 | struct page **pages; | |
2531 | unsigned int len; | |
2532 | unsigned int buflen = get_rfc1002_length(buf) + 4; | |
2533 | int rc; | |
2534 | int i = 0; | |
2535 | ||
2536 | len = min_t(unsigned int, buflen, server->vals->read_rsp_size - 4 + | |
2537 | sizeof(struct smb2_transform_hdr)) - HEADER_SIZE(server) + 1; | |
2538 | ||
2539 | rc = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, len); | |
2540 | if (rc < 0) | |
2541 | return rc; | |
2542 | server->total_read += rc; | |
2543 | ||
2544 | len = le32_to_cpu(tr_hdr->OriginalMessageSize) + 4 - | |
2545 | server->vals->read_rsp_size; | |
2546 | npages = DIV_ROUND_UP(len, PAGE_SIZE); | |
2547 | ||
2548 | pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); | |
2549 | if (!pages) { | |
2550 | rc = -ENOMEM; | |
2551 | goto discard_data; | |
2552 | } | |
2553 | ||
2554 | for (; i < npages; i++) { | |
2555 | pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
2556 | if (!pages[i]) { | |
2557 | rc = -ENOMEM; | |
2558 | goto discard_data; | |
2559 | } | |
2560 | } | |
2561 | ||
2562 | /* read read data into pages */ | |
2563 | rc = read_data_into_pages(server, pages, npages, len); | |
2564 | if (rc) | |
2565 | goto free_pages; | |
2566 | ||
350be257 | 2567 | rc = cifs_discard_remaining_data(server); |
c42a6abe PS |
2568 | if (rc) |
2569 | goto free_pages; | |
2570 | ||
2571 | rc = decrypt_raw_data(server, buf, server->vals->read_rsp_size - 4, | |
2572 | pages, npages, len); | |
2573 | if (rc) | |
2574 | goto free_pages; | |
2575 | ||
2576 | *mid = smb2_find_mid(server, buf); | |
2577 | if (*mid == NULL) | |
2578 | cifs_dbg(FYI, "mid not found\n"); | |
2579 | else { | |
2580 | cifs_dbg(FYI, "mid found\n"); | |
2581 | (*mid)->decrypted = true; | |
2582 | rc = handle_read_data(server, *mid, buf, | |
2583 | server->vals->read_rsp_size, | |
2584 | pages, npages, len); | |
2585 | } | |
2586 | ||
2587 | free_pages: | |
2588 | for (i = i - 1; i >= 0; i--) | |
2589 | put_page(pages[i]); | |
2590 | kfree(pages); | |
2591 | return rc; | |
2592 | discard_data: | |
350be257 | 2593 | cifs_discard_remaining_data(server); |
c42a6abe PS |
2594 | goto free_pages; |
2595 | } | |
2596 | ||
4326ed2f PS |
2597 | static int |
2598 | receive_encrypted_standard(struct TCP_Server_Info *server, | |
2599 | struct mid_q_entry **mid) | |
2600 | { | |
2601 | int length; | |
2602 | char *buf = server->smallbuf; | |
2603 | unsigned int pdu_length = get_rfc1002_length(buf); | |
2604 | unsigned int buf_size; | |
2605 | struct mid_q_entry *mid_entry; | |
2606 | ||
2607 | /* switch to large buffer if too big for a small one */ | |
2608 | if (pdu_length + 4 > MAX_CIFS_SMALL_BUFFER_SIZE) { | |
2609 | server->large_buf = true; | |
2610 | memcpy(server->bigbuf, buf, server->total_read); | |
2611 | buf = server->bigbuf; | |
2612 | } | |
2613 | ||
2614 | /* now read the rest */ | |
2615 | length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, | |
2616 | pdu_length - HEADER_SIZE(server) + 1 + 4); | |
2617 | if (length < 0) | |
2618 | return length; | |
2619 | server->total_read += length; | |
2620 | ||
2621 | buf_size = pdu_length + 4 - sizeof(struct smb2_transform_hdr); | |
2622 | length = decrypt_raw_data(server, buf, buf_size, NULL, 0, 0); | |
2623 | if (length) | |
2624 | return length; | |
2625 | ||
2626 | mid_entry = smb2_find_mid(server, buf); | |
2627 | if (mid_entry == NULL) | |
2628 | cifs_dbg(FYI, "mid not found\n"); | |
2629 | else { | |
2630 | cifs_dbg(FYI, "mid found\n"); | |
2631 | mid_entry->decrypted = true; | |
2632 | } | |
2633 | ||
2634 | *mid = mid_entry; | |
2635 | ||
2636 | if (mid_entry && mid_entry->handle) | |
2637 | return mid_entry->handle(server, mid_entry); | |
2638 | ||
2639 | return cifs_handle_standard(server, mid_entry); | |
2640 | } | |
2641 | ||
2642 | static int | |
2643 | smb3_receive_transform(struct TCP_Server_Info *server, struct mid_q_entry **mid) | |
2644 | { | |
2645 | char *buf = server->smallbuf; | |
2646 | unsigned int pdu_length = get_rfc1002_length(buf); | |
2647 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; | |
2648 | unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
2649 | ||
2650 | if (pdu_length + 4 < sizeof(struct smb2_transform_hdr) + | |
2651 | sizeof(struct smb2_sync_hdr)) { | |
2652 | cifs_dbg(VFS, "Transform message is too small (%u)\n", | |
2653 | pdu_length); | |
2654 | cifs_reconnect(server); | |
2655 | wake_up(&server->response_q); | |
2656 | return -ECONNABORTED; | |
2657 | } | |
2658 | ||
2659 | if (pdu_length + 4 < orig_len + sizeof(struct smb2_transform_hdr)) { | |
2660 | cifs_dbg(VFS, "Transform message is broken\n"); | |
2661 | cifs_reconnect(server); | |
2662 | wake_up(&server->response_q); | |
2663 | return -ECONNABORTED; | |
2664 | } | |
2665 | ||
c42a6abe PS |
2666 | if (pdu_length + 4 > CIFSMaxBufSize + MAX_HEADER_SIZE(server)) |
2667 | return receive_encrypted_read(server, mid); | |
4326ed2f PS |
2668 | |
2669 | return receive_encrypted_standard(server, mid); | |
2670 | } | |
2671 | ||
2672 | int | |
2673 | smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid) | |
2674 | { | |
2675 | char *buf = server->large_buf ? server->bigbuf : server->smallbuf; | |
2676 | ||
2677 | return handle_read_data(server, mid, buf, get_rfc1002_length(buf) + 4, | |
2678 | NULL, 0, 0); | |
2679 | } | |
2680 | ||
53ef1016 | 2681 | struct smb_version_operations smb20_operations = { |
027e8eec | 2682 | .compare_fids = smb2_compare_fids, |
2dc7e1c0 | 2683 | .setup_request = smb2_setup_request, |
c95b8eed | 2684 | .setup_async_request = smb2_setup_async_request, |
2dc7e1c0 | 2685 | .check_receive = smb2_check_receive, |
28ea5290 PS |
2686 | .add_credits = smb2_add_credits, |
2687 | .set_credits = smb2_set_credits, | |
2688 | .get_credits_field = smb2_get_credits_field, | |
2689 | .get_credits = smb2_get_credits, | |
cb7e9eab | 2690 | .wait_mtu_credits = cifs_wait_mtu_credits, |
2dc7e1c0 | 2691 | .get_next_mid = smb2_get_next_mid, |
09a4707e PS |
2692 | .read_data_offset = smb2_read_data_offset, |
2693 | .read_data_length = smb2_read_data_length, | |
2694 | .map_error = map_smb2_to_linux_error, | |
093b2bda PS |
2695 | .find_mid = smb2_find_mid, |
2696 | .check_message = smb2_check_message, | |
2697 | .dump_detail = smb2_dump_detail, | |
d60622eb PS |
2698 | .clear_stats = smb2_clear_stats, |
2699 | .print_stats = smb2_print_stats, | |
983c88a4 | 2700 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 2701 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 2702 | .downgrade_oplock = smb2_downgrade_oplock, |
ec2e4523 PS |
2703 | .need_neg = smb2_need_neg, |
2704 | .negotiate = smb2_negotiate, | |
3a3bab50 PS |
2705 | .negotiate_wsize = smb2_negotiate_wsize, |
2706 | .negotiate_rsize = smb2_negotiate_rsize, | |
5478f9ba PS |
2707 | .sess_setup = SMB2_sess_setup, |
2708 | .logoff = SMB2_logoff, | |
faaf946a PS |
2709 | .tree_connect = SMB2_tcon, |
2710 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 2711 | .qfs_tcon = smb2_qfs_tcon, |
2503a0db | 2712 | .is_path_accessible = smb2_is_path_accessible, |
9094fad1 PS |
2713 | .can_echo = smb2_can_echo, |
2714 | .echo = SMB2_echo, | |
be4cb9e3 PS |
2715 | .query_path_info = smb2_query_path_info, |
2716 | .get_srv_inum = smb2_get_srv_inum, | |
b7546bc5 | 2717 | .query_file_info = smb2_query_file_info, |
c839ff24 PS |
2718 | .set_path_size = smb2_set_path_size, |
2719 | .set_file_size = smb2_set_file_size, | |
1feeaac7 | 2720 | .set_file_info = smb2_set_file_info, |
64a5cfa6 | 2721 | .set_compression = smb2_set_compression, |
a0e73183 PS |
2722 | .mkdir = smb2_mkdir, |
2723 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1a500f01 | 2724 | .rmdir = smb2_rmdir, |
cbe6f439 | 2725 | .unlink = smb2_unlink, |
35143eb5 | 2726 | .rename = smb2_rename_path, |
568798cc | 2727 | .create_hardlink = smb2_create_hardlink, |
b42bf888 | 2728 | .query_symlink = smb2_query_symlink, |
5b23c97d SP |
2729 | .query_mf_symlink = smb3_query_mf_symlink, |
2730 | .create_mf_symlink = smb3_create_mf_symlink, | |
f0df737e PS |
2731 | .open = smb2_open_file, |
2732 | .set_fid = smb2_set_fid, | |
2733 | .close = smb2_close_file, | |
7a5cfb19 | 2734 | .flush = smb2_flush_file, |
09a4707e | 2735 | .async_readv = smb2_async_readv, |
33319141 | 2736 | .async_writev = smb2_async_writev, |
d8e05039 | 2737 | .sync_read = smb2_sync_read, |
009d3443 | 2738 | .sync_write = smb2_sync_write, |
d324f08d PS |
2739 | .query_dir_first = smb2_query_dir_first, |
2740 | .query_dir_next = smb2_query_dir_next, | |
2741 | .close_dir = smb2_close_dir, | |
2742 | .calc_smb_size = smb2_calc_size, | |
2e44b288 | 2743 | .is_status_pending = smb2_is_status_pending, |
511c54a2 | 2744 | .is_session_expired = smb2_is_session_expired, |
983c88a4 | 2745 | .oplock_response = smb2_oplock_response, |
6fc05c25 | 2746 | .queryfs = smb2_queryfs, |
f7ba7fe6 PS |
2747 | .mand_lock = smb2_mand_lock, |
2748 | .mand_unlock_range = smb2_unlock_range, | |
b140799a | 2749 | .push_mand_locks = smb2_push_mandatory_locks, |
b8c32dbb PS |
2750 | .get_lease_key = smb2_get_lease_key, |
2751 | .set_lease_key = smb2_set_lease_key, | |
2752 | .new_lease_key = smb2_new_lease_key, | |
38107d45 | 2753 | .calc_signature = smb2_calc_signature, |
53ef1016 PS |
2754 | .is_read_op = smb2_is_read_op, |
2755 | .set_oplock_level = smb2_set_oplock_level, | |
a41a28bd | 2756 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 2757 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 2758 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 2759 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 2760 | .dir_needs_close = smb2_dir_needs_close, |
9d49640a | 2761 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 2762 | .select_sectype = smb2_select_sectype, |
95907fea RS |
2763 | #ifdef CONFIG_CIFS_XATTR |
2764 | .query_all_EAs = smb2_query_eas, | |
5517554e | 2765 | .set_EA = smb2_set_ea, |
95907fea | 2766 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
2767 | #ifdef CONFIG_CIFS_ACL |
2768 | .get_acl = get_smb2_acl, | |
2769 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 2770 | .set_acl = set_smb2_acl, |
2f1afe25 | 2771 | #endif /* CIFS_ACL */ |
38107d45 SF |
2772 | }; |
2773 | ||
53ef1016 PS |
2774 | struct smb_version_operations smb21_operations = { |
2775 | .compare_fids = smb2_compare_fids, | |
2776 | .setup_request = smb2_setup_request, | |
2777 | .setup_async_request = smb2_setup_async_request, | |
2778 | .check_receive = smb2_check_receive, | |
2779 | .add_credits = smb2_add_credits, | |
2780 | .set_credits = smb2_set_credits, | |
2781 | .get_credits_field = smb2_get_credits_field, | |
2782 | .get_credits = smb2_get_credits, | |
cb7e9eab | 2783 | .wait_mtu_credits = smb2_wait_mtu_credits, |
53ef1016 PS |
2784 | .get_next_mid = smb2_get_next_mid, |
2785 | .read_data_offset = smb2_read_data_offset, | |
2786 | .read_data_length = smb2_read_data_length, | |
2787 | .map_error = map_smb2_to_linux_error, | |
2788 | .find_mid = smb2_find_mid, | |
2789 | .check_message = smb2_check_message, | |
2790 | .dump_detail = smb2_dump_detail, | |
2791 | .clear_stats = smb2_clear_stats, | |
2792 | .print_stats = smb2_print_stats, | |
2793 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 2794 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 2795 | .downgrade_oplock = smb2_downgrade_oplock, |
53ef1016 PS |
2796 | .need_neg = smb2_need_neg, |
2797 | .negotiate = smb2_negotiate, | |
2798 | .negotiate_wsize = smb2_negotiate_wsize, | |
2799 | .negotiate_rsize = smb2_negotiate_rsize, | |
2800 | .sess_setup = SMB2_sess_setup, | |
2801 | .logoff = SMB2_logoff, | |
2802 | .tree_connect = SMB2_tcon, | |
2803 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 2804 | .qfs_tcon = smb2_qfs_tcon, |
53ef1016 PS |
2805 | .is_path_accessible = smb2_is_path_accessible, |
2806 | .can_echo = smb2_can_echo, | |
2807 | .echo = SMB2_echo, | |
2808 | .query_path_info = smb2_query_path_info, | |
2809 | .get_srv_inum = smb2_get_srv_inum, | |
2810 | .query_file_info = smb2_query_file_info, | |
2811 | .set_path_size = smb2_set_path_size, | |
2812 | .set_file_size = smb2_set_file_size, | |
2813 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 2814 | .set_compression = smb2_set_compression, |
53ef1016 PS |
2815 | .mkdir = smb2_mkdir, |
2816 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
2817 | .rmdir = smb2_rmdir, | |
2818 | .unlink = smb2_unlink, | |
2819 | .rename = smb2_rename_path, | |
2820 | .create_hardlink = smb2_create_hardlink, | |
2821 | .query_symlink = smb2_query_symlink, | |
c22870ea | 2822 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 2823 | .create_mf_symlink = smb3_create_mf_symlink, |
53ef1016 PS |
2824 | .open = smb2_open_file, |
2825 | .set_fid = smb2_set_fid, | |
2826 | .close = smb2_close_file, | |
2827 | .flush = smb2_flush_file, | |
2828 | .async_readv = smb2_async_readv, | |
2829 | .async_writev = smb2_async_writev, | |
2830 | .sync_read = smb2_sync_read, | |
2831 | .sync_write = smb2_sync_write, | |
2832 | .query_dir_first = smb2_query_dir_first, | |
2833 | .query_dir_next = smb2_query_dir_next, | |
2834 | .close_dir = smb2_close_dir, | |
2835 | .calc_smb_size = smb2_calc_size, | |
2836 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 2837 | .is_session_expired = smb2_is_session_expired, |
53ef1016 PS |
2838 | .oplock_response = smb2_oplock_response, |
2839 | .queryfs = smb2_queryfs, | |
2840 | .mand_lock = smb2_mand_lock, | |
2841 | .mand_unlock_range = smb2_unlock_range, | |
2842 | .push_mand_locks = smb2_push_mandatory_locks, | |
2843 | .get_lease_key = smb2_get_lease_key, | |
2844 | .set_lease_key = smb2_set_lease_key, | |
2845 | .new_lease_key = smb2_new_lease_key, | |
2846 | .calc_signature = smb2_calc_signature, | |
2847 | .is_read_op = smb21_is_read_op, | |
2848 | .set_oplock_level = smb21_set_oplock_level, | |
a41a28bd | 2849 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 2850 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 2851 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 2852 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 2853 | .dir_needs_close = smb2_dir_needs_close, |
834170c8 | 2854 | .enum_snapshots = smb3_enum_snapshots, |
9d49640a | 2855 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 2856 | .select_sectype = smb2_select_sectype, |
95907fea RS |
2857 | #ifdef CONFIG_CIFS_XATTR |
2858 | .query_all_EAs = smb2_query_eas, | |
5517554e | 2859 | .set_EA = smb2_set_ea, |
95907fea | 2860 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
2861 | #ifdef CONFIG_CIFS_ACL |
2862 | .get_acl = get_smb2_acl, | |
2863 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 2864 | .set_acl = set_smb2_acl, |
2f1afe25 | 2865 | #endif /* CIFS_ACL */ |
53ef1016 | 2866 | }; |
38107d45 SF |
2867 | |
2868 | struct smb_version_operations smb30_operations = { | |
2869 | .compare_fids = smb2_compare_fids, | |
2870 | .setup_request = smb2_setup_request, | |
2871 | .setup_async_request = smb2_setup_async_request, | |
2872 | .check_receive = smb2_check_receive, | |
2873 | .add_credits = smb2_add_credits, | |
2874 | .set_credits = smb2_set_credits, | |
2875 | .get_credits_field = smb2_get_credits_field, | |
2876 | .get_credits = smb2_get_credits, | |
cb7e9eab | 2877 | .wait_mtu_credits = smb2_wait_mtu_credits, |
38107d45 SF |
2878 | .get_next_mid = smb2_get_next_mid, |
2879 | .read_data_offset = smb2_read_data_offset, | |
2880 | .read_data_length = smb2_read_data_length, | |
2881 | .map_error = map_smb2_to_linux_error, | |
2882 | .find_mid = smb2_find_mid, | |
2883 | .check_message = smb2_check_message, | |
2884 | .dump_detail = smb2_dump_detail, | |
2885 | .clear_stats = smb2_clear_stats, | |
2886 | .print_stats = smb2_print_stats, | |
769ee6a4 | 2887 | .dump_share_caps = smb2_dump_share_caps, |
38107d45 | 2888 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 2889 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 2890 | .downgrade_oplock = smb2_downgrade_oplock, |
38107d45 SF |
2891 | .need_neg = smb2_need_neg, |
2892 | .negotiate = smb2_negotiate, | |
2893 | .negotiate_wsize = smb2_negotiate_wsize, | |
2894 | .negotiate_rsize = smb2_negotiate_rsize, | |
2895 | .sess_setup = SMB2_sess_setup, | |
2896 | .logoff = SMB2_logoff, | |
2897 | .tree_connect = SMB2_tcon, | |
2898 | .tree_disconnect = SMB2_tdis, | |
af6a12ea | 2899 | .qfs_tcon = smb3_qfs_tcon, |
38107d45 SF |
2900 | .is_path_accessible = smb2_is_path_accessible, |
2901 | .can_echo = smb2_can_echo, | |
2902 | .echo = SMB2_echo, | |
2903 | .query_path_info = smb2_query_path_info, | |
2904 | .get_srv_inum = smb2_get_srv_inum, | |
2905 | .query_file_info = smb2_query_file_info, | |
2906 | .set_path_size = smb2_set_path_size, | |
2907 | .set_file_size = smb2_set_file_size, | |
2908 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 2909 | .set_compression = smb2_set_compression, |
38107d45 SF |
2910 | .mkdir = smb2_mkdir, |
2911 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
2912 | .rmdir = smb2_rmdir, | |
2913 | .unlink = smb2_unlink, | |
2914 | .rename = smb2_rename_path, | |
2915 | .create_hardlink = smb2_create_hardlink, | |
b42bf888 | 2916 | .query_symlink = smb2_query_symlink, |
c22870ea | 2917 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 2918 | .create_mf_symlink = smb3_create_mf_symlink, |
38107d45 SF |
2919 | .open = smb2_open_file, |
2920 | .set_fid = smb2_set_fid, | |
2921 | .close = smb2_close_file, | |
2922 | .flush = smb2_flush_file, | |
2923 | .async_readv = smb2_async_readv, | |
2924 | .async_writev = smb2_async_writev, | |
2925 | .sync_read = smb2_sync_read, | |
2926 | .sync_write = smb2_sync_write, | |
2927 | .query_dir_first = smb2_query_dir_first, | |
2928 | .query_dir_next = smb2_query_dir_next, | |
2929 | .close_dir = smb2_close_dir, | |
2930 | .calc_smb_size = smb2_calc_size, | |
2931 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 2932 | .is_session_expired = smb2_is_session_expired, |
38107d45 SF |
2933 | .oplock_response = smb2_oplock_response, |
2934 | .queryfs = smb2_queryfs, | |
2935 | .mand_lock = smb2_mand_lock, | |
2936 | .mand_unlock_range = smb2_unlock_range, | |
2937 | .push_mand_locks = smb2_push_mandatory_locks, | |
2938 | .get_lease_key = smb2_get_lease_key, | |
2939 | .set_lease_key = smb2_set_lease_key, | |
2940 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 2941 | .generate_signingkey = generate_smb30signingkey, |
38107d45 | 2942 | .calc_signature = smb3_calc_signature, |
b3152e2c | 2943 | .set_integrity = smb3_set_integrity, |
53ef1016 | 2944 | .is_read_op = smb21_is_read_op, |
42873b0a | 2945 | .set_oplock_level = smb3_set_oplock_level, |
f047390a PS |
2946 | .create_lease_buf = smb3_create_lease_buf, |
2947 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 2948 | .copychunk_range = smb2_copychunk_range, |
ca9e7a1c | 2949 | .duplicate_extents = smb2_duplicate_extents, |
ff1c038a | 2950 | .validate_negotiate = smb3_validate_negotiate, |
7f6c5008 | 2951 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 2952 | .dir_needs_close = smb2_dir_needs_close, |
31742c5a | 2953 | .fallocate = smb3_fallocate, |
834170c8 | 2954 | .enum_snapshots = smb3_enum_snapshots, |
026e93dc PS |
2955 | .init_transform_rq = smb3_init_transform_rq, |
2956 | .free_transform_rq = smb3_free_transform_rq, | |
4326ed2f PS |
2957 | .is_transform_hdr = smb3_is_transform_hdr, |
2958 | .receive_transform = smb3_receive_transform, | |
9d49640a | 2959 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 2960 | .select_sectype = smb2_select_sectype, |
95907fea RS |
2961 | #ifdef CONFIG_CIFS_XATTR |
2962 | .query_all_EAs = smb2_query_eas, | |
5517554e | 2963 | .set_EA = smb2_set_ea, |
95907fea | 2964 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
2965 | #ifdef CONFIG_CIFS_ACL |
2966 | .get_acl = get_smb2_acl, | |
2967 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 2968 | .set_acl = set_smb2_acl, |
2f1afe25 | 2969 | #endif /* CIFS_ACL */ |
1080ef75 SF |
2970 | }; |
2971 | ||
aab1893d SF |
2972 | #ifdef CONFIG_CIFS_SMB311 |
2973 | struct smb_version_operations smb311_operations = { | |
2974 | .compare_fids = smb2_compare_fids, | |
2975 | .setup_request = smb2_setup_request, | |
2976 | .setup_async_request = smb2_setup_async_request, | |
2977 | .check_receive = smb2_check_receive, | |
2978 | .add_credits = smb2_add_credits, | |
2979 | .set_credits = smb2_set_credits, | |
2980 | .get_credits_field = smb2_get_credits_field, | |
2981 | .get_credits = smb2_get_credits, | |
2982 | .wait_mtu_credits = smb2_wait_mtu_credits, | |
2983 | .get_next_mid = smb2_get_next_mid, | |
2984 | .read_data_offset = smb2_read_data_offset, | |
2985 | .read_data_length = smb2_read_data_length, | |
2986 | .map_error = map_smb2_to_linux_error, | |
2987 | .find_mid = smb2_find_mid, | |
2988 | .check_message = smb2_check_message, | |
2989 | .dump_detail = smb2_dump_detail, | |
2990 | .clear_stats = smb2_clear_stats, | |
2991 | .print_stats = smb2_print_stats, | |
2992 | .dump_share_caps = smb2_dump_share_caps, | |
2993 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 2994 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
aab1893d SF |
2995 | .downgrade_oplock = smb2_downgrade_oplock, |
2996 | .need_neg = smb2_need_neg, | |
2997 | .negotiate = smb2_negotiate, | |
2998 | .negotiate_wsize = smb2_negotiate_wsize, | |
2999 | .negotiate_rsize = smb2_negotiate_rsize, | |
3000 | .sess_setup = SMB2_sess_setup, | |
3001 | .logoff = SMB2_logoff, | |
3002 | .tree_connect = SMB2_tcon, | |
3003 | .tree_disconnect = SMB2_tdis, | |
3004 | .qfs_tcon = smb3_qfs_tcon, | |
3005 | .is_path_accessible = smb2_is_path_accessible, | |
3006 | .can_echo = smb2_can_echo, | |
3007 | .echo = SMB2_echo, | |
3008 | .query_path_info = smb2_query_path_info, | |
3009 | .get_srv_inum = smb2_get_srv_inum, | |
3010 | .query_file_info = smb2_query_file_info, | |
3011 | .set_path_size = smb2_set_path_size, | |
3012 | .set_file_size = smb2_set_file_size, | |
3013 | .set_file_info = smb2_set_file_info, | |
3014 | .set_compression = smb2_set_compression, | |
3015 | .mkdir = smb2_mkdir, | |
3016 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
3017 | .rmdir = smb2_rmdir, | |
3018 | .unlink = smb2_unlink, | |
3019 | .rename = smb2_rename_path, | |
3020 | .create_hardlink = smb2_create_hardlink, | |
3021 | .query_symlink = smb2_query_symlink, | |
3022 | .query_mf_symlink = smb3_query_mf_symlink, | |
3023 | .create_mf_symlink = smb3_create_mf_symlink, | |
3024 | .open = smb2_open_file, | |
3025 | .set_fid = smb2_set_fid, | |
3026 | .close = smb2_close_file, | |
3027 | .flush = smb2_flush_file, | |
3028 | .async_readv = smb2_async_readv, | |
3029 | .async_writev = smb2_async_writev, | |
3030 | .sync_read = smb2_sync_read, | |
3031 | .sync_write = smb2_sync_write, | |
3032 | .query_dir_first = smb2_query_dir_first, | |
3033 | .query_dir_next = smb2_query_dir_next, | |
3034 | .close_dir = smb2_close_dir, | |
3035 | .calc_smb_size = smb2_calc_size, | |
3036 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 3037 | .is_session_expired = smb2_is_session_expired, |
aab1893d SF |
3038 | .oplock_response = smb2_oplock_response, |
3039 | .queryfs = smb2_queryfs, | |
3040 | .mand_lock = smb2_mand_lock, | |
3041 | .mand_unlock_range = smb2_unlock_range, | |
3042 | .push_mand_locks = smb2_push_mandatory_locks, | |
3043 | .get_lease_key = smb2_get_lease_key, | |
3044 | .set_lease_key = smb2_set_lease_key, | |
3045 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 3046 | .generate_signingkey = generate_smb311signingkey, |
aab1893d | 3047 | .calc_signature = smb3_calc_signature, |
b3152e2c | 3048 | .set_integrity = smb3_set_integrity, |
aab1893d SF |
3049 | .is_read_op = smb21_is_read_op, |
3050 | .set_oplock_level = smb3_set_oplock_level, | |
3051 | .create_lease_buf = smb3_create_lease_buf, | |
3052 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 3053 | .copychunk_range = smb2_copychunk_range, |
02b16665 | 3054 | .duplicate_extents = smb2_duplicate_extents, |
aab1893d SF |
3055 | /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */ |
3056 | .wp_retry_size = smb2_wp_retry_size, | |
3057 | .dir_needs_close = smb2_dir_needs_close, | |
3058 | .fallocate = smb3_fallocate, | |
834170c8 | 3059 | .enum_snapshots = smb3_enum_snapshots, |
026e93dc PS |
3060 | .init_transform_rq = smb3_init_transform_rq, |
3061 | .free_transform_rq = smb3_free_transform_rq, | |
4326ed2f PS |
3062 | .is_transform_hdr = smb3_is_transform_hdr, |
3063 | .receive_transform = smb3_receive_transform, | |
9d49640a | 3064 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 3065 | .select_sectype = smb2_select_sectype, |
95907fea RS |
3066 | #ifdef CONFIG_CIFS_XATTR |
3067 | .query_all_EAs = smb2_query_eas, | |
5517554e | 3068 | .set_EA = smb2_set_ea, |
95907fea | 3069 | #endif /* CIFS_XATTR */ |
aab1893d SF |
3070 | }; |
3071 | #endif /* CIFS_SMB311 */ | |
3072 | ||
dd446b16 SF |
3073 | struct smb_version_values smb20_values = { |
3074 | .version_string = SMB20_VERSION_STRING, | |
3075 | .protocol_id = SMB20_PROT_ID, | |
3076 | .req_capabilities = 0, /* MBZ */ | |
3077 | .large_lock_type = 0, | |
3078 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
3079 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
3080 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
3081 | .header_size = sizeof(struct smb2_hdr), | |
3082 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
3083 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
3084 | .lock_cmd = SMB2_LOCK, | |
3085 | .cap_unix = 0, | |
3086 | .cap_nt_find = SMB2_NT_FIND, | |
3087 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
3088 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
3089 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 3090 | .create_lease_size = sizeof(struct create_lease), |
dd446b16 SF |
3091 | }; |
3092 | ||
1080ef75 SF |
3093 | struct smb_version_values smb21_values = { |
3094 | .version_string = SMB21_VERSION_STRING, | |
e4aa25e7 SF |
3095 | .protocol_id = SMB21_PROT_ID, |
3096 | .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */ | |
3097 | .large_lock_type = 0, | |
3098 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
3099 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
3100 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
3101 | .header_size = sizeof(struct smb2_hdr), | |
3102 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
3103 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
3104 | .lock_cmd = SMB2_LOCK, | |
3105 | .cap_unix = 0, | |
3106 | .cap_nt_find = SMB2_NT_FIND, | |
3107 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
3108 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
3109 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 3110 | .create_lease_size = sizeof(struct create_lease), |
e4aa25e7 SF |
3111 | }; |
3112 | ||
9764c02f SF |
3113 | struct smb_version_values smb3any_values = { |
3114 | .version_string = SMB3ANY_VERSION_STRING, | |
3115 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
3116 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, | |
3117 | .large_lock_type = 0, | |
3118 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
3119 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
3120 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
3121 | .header_size = sizeof(struct smb2_hdr), | |
3122 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
3123 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
3124 | .lock_cmd = SMB2_LOCK, | |
3125 | .cap_unix = 0, | |
3126 | .cap_nt_find = SMB2_NT_FIND, | |
3127 | .cap_large_files = SMB2_LARGE_FILES, | |
3128 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
3129 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
3130 | .create_lease_size = sizeof(struct create_lease_v2), | |
3131 | }; | |
3132 | ||
3133 | struct smb_version_values smbdefault_values = { | |
3134 | .version_string = SMBDEFAULT_VERSION_STRING, | |
3135 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
3136 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, | |
3137 | .large_lock_type = 0, | |
3138 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
3139 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
3140 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
3141 | .header_size = sizeof(struct smb2_hdr), | |
3142 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
3143 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
3144 | .lock_cmd = SMB2_LOCK, | |
3145 | .cap_unix = 0, | |
3146 | .cap_nt_find = SMB2_NT_FIND, | |
3147 | .cap_large_files = SMB2_LARGE_FILES, | |
3148 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
3149 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
3150 | .create_lease_size = sizeof(struct create_lease_v2), | |
3151 | }; | |
3152 | ||
e4aa25e7 SF |
3153 | struct smb_version_values smb30_values = { |
3154 | .version_string = SMB30_VERSION_STRING, | |
3155 | .protocol_id = SMB30_PROT_ID, | |
373512ec | 3156 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, |
027e8eec PS |
3157 | .large_lock_type = 0, |
3158 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
3159 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
3160 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
093b2bda PS |
3161 | .header_size = sizeof(struct smb2_hdr), |
3162 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
09a4707e | 3163 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, |
2dc7e1c0 | 3164 | .lock_cmd = SMB2_LOCK, |
29e20f9c PS |
3165 | .cap_unix = 0, |
3166 | .cap_nt_find = SMB2_NT_FIND, | |
3167 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
3168 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
3169 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 3170 | .create_lease_size = sizeof(struct create_lease_v2), |
1080ef75 | 3171 | }; |
20b6d8b4 SF |
3172 | |
3173 | struct smb_version_values smb302_values = { | |
3174 | .version_string = SMB302_VERSION_STRING, | |
3175 | .protocol_id = SMB302_PROT_ID, | |
373512ec | 3176 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, |
20b6d8b4 SF |
3177 | .large_lock_type = 0, |
3178 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
3179 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
3180 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
3181 | .header_size = sizeof(struct smb2_hdr), | |
3182 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
3183 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
3184 | .lock_cmd = SMB2_LOCK, | |
3185 | .cap_unix = 0, | |
3186 | .cap_nt_find = SMB2_NT_FIND, | |
3187 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
3188 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
3189 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 3190 | .create_lease_size = sizeof(struct create_lease_v2), |
20b6d8b4 | 3191 | }; |
5f7fbf73 SF |
3192 | |
3193 | #ifdef CONFIG_CIFS_SMB311 | |
3194 | struct smb_version_values smb311_values = { | |
3195 | .version_string = SMB311_VERSION_STRING, | |
3196 | .protocol_id = SMB311_PROT_ID, | |
1955880b | 3197 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, |
5f7fbf73 SF |
3198 | .large_lock_type = 0, |
3199 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
3200 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
3201 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
3202 | .header_size = sizeof(struct smb2_hdr), | |
3203 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
3204 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
3205 | .lock_cmd = SMB2_LOCK, | |
3206 | .cap_unix = 0, | |
3207 | .cap_nt_find = SMB2_NT_FIND, | |
3208 | .cap_large_files = SMB2_LARGE_FILES, | |
3209 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
3210 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
3211 | .create_lease_size = sizeof(struct create_lease_v2), | |
3212 | }; | |
3213 | #endif /* SMB311 */ |