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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" |
09902f8d | 35 | #include "smbdirect.h" |
28ea5290 | 36 | |
ef68e831 | 37 | /* Change credits for different ops and return the total number of credits */ |
28ea5290 PS |
38 | static int |
39 | change_conf(struct TCP_Server_Info *server) | |
40 | { | |
41 | server->credits += server->echo_credits + server->oplock_credits; | |
42 | server->oplock_credits = server->echo_credits = 0; | |
43 | switch (server->credits) { | |
44 | case 0: | |
ef68e831 | 45 | return 0; |
28ea5290 PS |
46 | case 1: |
47 | server->echoes = false; | |
48 | server->oplocks = false; | |
28ea5290 PS |
49 | break; |
50 | case 2: | |
51 | server->echoes = true; | |
52 | server->oplocks = false; | |
53 | server->echo_credits = 1; | |
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; | |
ef68e831 | 66 | return server->credits + server->echo_credits + server->oplock_credits; |
28ea5290 PS |
67 | } |
68 | ||
69 | static void | |
335b7b62 PS |
70 | smb2_add_credits(struct TCP_Server_Info *server, |
71 | const struct cifs_credits *credits, const int optype) | |
28ea5290 | 72 | { |
ef68e831 | 73 | int *val, rc = -1; |
335b7b62 PS |
74 | unsigned int add = credits->value; |
75 | unsigned int instance = credits->instance; | |
76 | bool reconnect_detected = false; | |
ef68e831 | 77 | |
28ea5290 PS |
78 | spin_lock(&server->req_lock); |
79 | val = server->ops->get_credits_field(server, optype); | |
b340a4d4 SF |
80 | |
81 | /* eg found case where write overlapping reconnect messed up credits */ | |
82 | if (((optype & CIFS_OP_MASK) == CIFS_NEG_OP) && (*val != 0)) | |
83 | trace_smb3_reconnect_with_invalid_credits(server->CurrentMid, | |
84 | server->hostname, *val); | |
335b7b62 PS |
85 | if ((instance == 0) || (instance == server->reconnect_instance)) |
86 | *val += add; | |
87 | else | |
88 | reconnect_detected = true; | |
b340a4d4 | 89 | |
141891f4 SF |
90 | if (*val > 65000) { |
91 | *val = 65000; /* Don't get near 64K credits, avoid srv bugs */ | |
92 | printk_once(KERN_WARNING "server overflowed SMB3 credits\n"); | |
93 | } | |
28ea5290 | 94 | server->in_flight--; |
ec2e4523 | 95 | if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP) |
28ea5290 | 96 | rc = change_conf(server); |
983c88a4 PS |
97 | /* |
98 | * Sometimes server returns 0 credits on oplock break ack - we need to | |
99 | * rebalance credits in this case. | |
100 | */ | |
101 | else if (server->in_flight > 0 && server->oplock_credits == 0 && | |
102 | server->oplocks) { | |
103 | if (server->credits > 1) { | |
104 | server->credits--; | |
105 | server->oplock_credits++; | |
106 | } | |
107 | } | |
28ea5290 PS |
108 | spin_unlock(&server->req_lock); |
109 | wake_up(&server->request_q); | |
ef68e831 | 110 | |
335b7b62 PS |
111 | if (reconnect_detected) |
112 | cifs_dbg(FYI, "trying to put %d credits from the old server instance %d\n", | |
113 | add, instance); | |
114 | ||
82e0457a PS |
115 | if (server->tcpStatus == CifsNeedReconnect |
116 | || server->tcpStatus == CifsExiting) | |
ef68e831 PS |
117 | return; |
118 | ||
119 | switch (rc) { | |
120 | case -1: | |
121 | /* change_conf hasn't been executed */ | |
122 | break; | |
123 | case 0: | |
124 | cifs_dbg(VFS, "Possible client or server bug - zero credits\n"); | |
125 | break; | |
126 | case 1: | |
127 | cifs_dbg(VFS, "disabling echoes and oplocks\n"); | |
128 | break; | |
129 | case 2: | |
130 | cifs_dbg(FYI, "disabling oplocks\n"); | |
131 | break; | |
132 | default: | |
133 | cifs_dbg(FYI, "add %u credits total=%d\n", add, rc); | |
134 | } | |
28ea5290 PS |
135 | } |
136 | ||
137 | static void | |
138 | smb2_set_credits(struct TCP_Server_Info *server, const int val) | |
139 | { | |
140 | spin_lock(&server->req_lock); | |
141 | server->credits = val; | |
9e1a37da SF |
142 | if (val == 1) |
143 | server->reconnect_instance++; | |
28ea5290 | 144 | spin_unlock(&server->req_lock); |
6e4d3bbe SF |
145 | /* don't log while holding the lock */ |
146 | if (val == 1) | |
147 | cifs_dbg(FYI, "set credits to 1 due to smb2 reconnect\n"); | |
28ea5290 PS |
148 | } |
149 | ||
150 | static int * | |
151 | smb2_get_credits_field(struct TCP_Server_Info *server, const int optype) | |
152 | { | |
153 | switch (optype) { | |
154 | case CIFS_ECHO_OP: | |
155 | return &server->echo_credits; | |
156 | case CIFS_OBREAK_OP: | |
157 | return &server->oplock_credits; | |
158 | default: | |
159 | return &server->credits; | |
160 | } | |
161 | } | |
162 | ||
163 | static unsigned int | |
164 | smb2_get_credits(struct mid_q_entry *mid) | |
165 | { | |
49f466bd | 166 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)mid->resp_buf; |
31473fc4 | 167 | |
3d3003fc PS |
168 | if (mid->mid_state == MID_RESPONSE_RECEIVED |
169 | || mid->mid_state == MID_RESPONSE_MALFORMED) | |
170 | return le16_to_cpu(shdr->CreditRequest); | |
171 | ||
172 | return 0; | |
28ea5290 | 173 | } |
2dc7e1c0 | 174 | |
cb7e9eab PS |
175 | static int |
176 | smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size, | |
335b7b62 | 177 | unsigned int *num, struct cifs_credits *credits) |
cb7e9eab PS |
178 | { |
179 | int rc = 0; | |
180 | unsigned int scredits; | |
181 | ||
182 | spin_lock(&server->req_lock); | |
183 | while (1) { | |
184 | if (server->credits <= 0) { | |
185 | spin_unlock(&server->req_lock); | |
186 | cifs_num_waiters_inc(server); | |
187 | rc = wait_event_killable(server->request_q, | |
b227d215 | 188 | has_credits(server, &server->credits, 1)); |
cb7e9eab PS |
189 | cifs_num_waiters_dec(server); |
190 | if (rc) | |
191 | return rc; | |
192 | spin_lock(&server->req_lock); | |
193 | } else { | |
194 | if (server->tcpStatus == CifsExiting) { | |
195 | spin_unlock(&server->req_lock); | |
196 | return -ENOENT; | |
197 | } | |
198 | ||
199 | scredits = server->credits; | |
200 | /* can deadlock with reopen */ | |
acc58d0b | 201 | if (scredits <= 8) { |
cb7e9eab | 202 | *num = SMB2_MAX_BUFFER_SIZE; |
335b7b62 PS |
203 | credits->value = 0; |
204 | credits->instance = 0; | |
cb7e9eab PS |
205 | break; |
206 | } | |
207 | ||
acc58d0b PS |
208 | /* leave some credits for reopen and other ops */ |
209 | scredits -= 8; | |
cb7e9eab PS |
210 | *num = min_t(unsigned int, size, |
211 | scredits * SMB2_MAX_BUFFER_SIZE); | |
212 | ||
335b7b62 PS |
213 | credits->value = |
214 | DIV_ROUND_UP(*num, SMB2_MAX_BUFFER_SIZE); | |
215 | credits->instance = server->reconnect_instance; | |
216 | server->credits -= credits->value; | |
cb7e9eab PS |
217 | server->in_flight++; |
218 | break; | |
219 | } | |
220 | } | |
221 | spin_unlock(&server->req_lock); | |
222 | return rc; | |
223 | } | |
224 | ||
9a1c67e8 PS |
225 | static int |
226 | smb2_adjust_credits(struct TCP_Server_Info *server, | |
227 | struct cifs_credits *credits, | |
228 | const unsigned int payload_size) | |
229 | { | |
230 | int new_val = DIV_ROUND_UP(payload_size, SMB2_MAX_BUFFER_SIZE); | |
231 | ||
232 | if (!credits->value || credits->value == new_val) | |
233 | return 0; | |
234 | ||
235 | if (credits->value < new_val) { | |
236 | WARN_ONCE(1, "request has less credits (%d) than required (%d)", | |
237 | credits->value, new_val); | |
238 | return -ENOTSUPP; | |
239 | } | |
240 | ||
241 | spin_lock(&server->req_lock); | |
242 | ||
243 | if (server->reconnect_instance != credits->instance) { | |
244 | spin_unlock(&server->req_lock); | |
245 | cifs_dbg(VFS, "trying to return %d credits to old session\n", | |
246 | credits->value - new_val); | |
247 | return -EAGAIN; | |
248 | } | |
249 | ||
250 | server->credits += credits->value - new_val; | |
251 | spin_unlock(&server->req_lock); | |
252 | wake_up(&server->request_q); | |
253 | credits->value = new_val; | |
254 | return 0; | |
255 | } | |
256 | ||
2dc7e1c0 PS |
257 | static __u64 |
258 | smb2_get_next_mid(struct TCP_Server_Info *server) | |
259 | { | |
260 | __u64 mid; | |
261 | /* for SMB2 we need the current value */ | |
262 | spin_lock(&GlobalMid_Lock); | |
263 | mid = server->CurrentMid++; | |
264 | spin_unlock(&GlobalMid_Lock); | |
265 | return mid; | |
266 | } | |
1080ef75 | 267 | |
c781af7e PS |
268 | static void |
269 | smb2_revert_current_mid(struct TCP_Server_Info *server, const unsigned int val) | |
270 | { | |
271 | spin_lock(&GlobalMid_Lock); | |
272 | if (server->CurrentMid >= val) | |
273 | server->CurrentMid -= val; | |
274 | spin_unlock(&GlobalMid_Lock); | |
275 | } | |
276 | ||
093b2bda PS |
277 | static struct mid_q_entry * |
278 | smb2_find_mid(struct TCP_Server_Info *server, char *buf) | |
279 | { | |
280 | struct mid_q_entry *mid; | |
49f466bd | 281 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
31473fc4 | 282 | __u64 wire_mid = le64_to_cpu(shdr->MessageId); |
093b2bda | 283 | |
31473fc4 | 284 | if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) { |
373512ec SF |
285 | cifs_dbg(VFS, "encrypted frame parsing not supported yet"); |
286 | return NULL; | |
287 | } | |
288 | ||
093b2bda PS |
289 | spin_lock(&GlobalMid_Lock); |
290 | list_for_each_entry(mid, &server->pending_mid_q, qhead) { | |
9235d098 | 291 | if ((mid->mid == wire_mid) && |
093b2bda | 292 | (mid->mid_state == MID_REQUEST_SUBMITTED) && |
31473fc4 | 293 | (mid->command == shdr->Command)) { |
696e420b | 294 | kref_get(&mid->refcount); |
093b2bda PS |
295 | spin_unlock(&GlobalMid_Lock); |
296 | return mid; | |
297 | } | |
298 | } | |
299 | spin_unlock(&GlobalMid_Lock); | |
300 | return NULL; | |
301 | } | |
302 | ||
303 | static void | |
14547f7d | 304 | smb2_dump_detail(void *buf, struct TCP_Server_Info *server) |
093b2bda PS |
305 | { |
306 | #ifdef CONFIG_CIFS_DEBUG2 | |
49f466bd | 307 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
093b2bda | 308 | |
f96637be | 309 | cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n", |
31473fc4 PS |
310 | shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId, |
311 | shdr->ProcessId); | |
14547f7d | 312 | cifs_dbg(VFS, "smb buf %p len %u\n", buf, |
71992e62 | 313 | server->ops->calc_smb_size(buf, server)); |
093b2bda PS |
314 | #endif |
315 | } | |
316 | ||
ec2e4523 PS |
317 | static bool |
318 | smb2_need_neg(struct TCP_Server_Info *server) | |
319 | { | |
320 | return server->max_read == 0; | |
321 | } | |
322 | ||
323 | static int | |
324 | smb2_negotiate(const unsigned int xid, struct cifs_ses *ses) | |
325 | { | |
326 | int rc; | |
327 | ses->server->CurrentMid = 0; | |
328 | rc = SMB2_negotiate(xid, ses); | |
329 | /* BB we probably don't need to retry with modern servers */ | |
330 | if (rc == -EAGAIN) | |
331 | rc = -EHOSTDOWN; | |
332 | return rc; | |
333 | } | |
334 | ||
3a3bab50 PS |
335 | static unsigned int |
336 | smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
337 | { | |
338 | struct TCP_Server_Info *server = tcon->ses->server; | |
339 | unsigned int wsize; | |
340 | ||
341 | /* start with specified wsize, or default */ | |
342 | wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE; | |
343 | wsize = min_t(unsigned int, wsize, server->max_write); | |
09902f8d | 344 | #ifdef CONFIG_CIFS_SMB_DIRECT |
bb4c0419 LL |
345 | if (server->rdma) { |
346 | if (server->sign) | |
347 | wsize = min_t(unsigned int, | |
348 | wsize, server->smbd_conn->max_fragmented_send_size); | |
349 | else | |
350 | wsize = min_t(unsigned int, | |
09902f8d | 351 | wsize, server->smbd_conn->max_readwrite_size); |
bb4c0419 | 352 | } |
09902f8d | 353 | #endif |
cb7e9eab PS |
354 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) |
355 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 356 | |
3a3bab50 PS |
357 | return wsize; |
358 | } | |
359 | ||
3d621230 SF |
360 | static unsigned int |
361 | smb3_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
362 | { | |
363 | struct TCP_Server_Info *server = tcon->ses->server; | |
364 | unsigned int wsize; | |
365 | ||
366 | /* start with specified wsize, or default */ | |
367 | wsize = volume_info->wsize ? volume_info->wsize : SMB3_DEFAULT_IOSIZE; | |
368 | wsize = min_t(unsigned int, wsize, server->max_write); | |
369 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
370 | if (server->rdma) { | |
371 | if (server->sign) | |
372 | wsize = min_t(unsigned int, | |
373 | wsize, server->smbd_conn->max_fragmented_send_size); | |
374 | else | |
375 | wsize = min_t(unsigned int, | |
376 | wsize, server->smbd_conn->max_readwrite_size); | |
377 | } | |
378 | #endif | |
379 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
380 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
381 | ||
382 | return wsize; | |
383 | } | |
384 | ||
3a3bab50 PS |
385 | static unsigned int |
386 | smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
387 | { | |
388 | struct TCP_Server_Info *server = tcon->ses->server; | |
389 | unsigned int rsize; | |
390 | ||
391 | /* start with specified rsize, or default */ | |
392 | rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE; | |
393 | rsize = min_t(unsigned int, rsize, server->max_read); | |
09902f8d | 394 | #ifdef CONFIG_CIFS_SMB_DIRECT |
bb4c0419 LL |
395 | if (server->rdma) { |
396 | if (server->sign) | |
397 | rsize = min_t(unsigned int, | |
398 | rsize, server->smbd_conn->max_fragmented_recv_size); | |
399 | else | |
400 | rsize = min_t(unsigned int, | |
09902f8d | 401 | rsize, server->smbd_conn->max_readwrite_size); |
bb4c0419 | 402 | } |
09902f8d | 403 | #endif |
bed9da02 PS |
404 | |
405 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
406 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 407 | |
3a3bab50 PS |
408 | return rsize; |
409 | } | |
410 | ||
3d621230 SF |
411 | static unsigned int |
412 | smb3_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
413 | { | |
414 | struct TCP_Server_Info *server = tcon->ses->server; | |
415 | unsigned int rsize; | |
416 | ||
417 | /* start with specified rsize, or default */ | |
418 | rsize = volume_info->rsize ? volume_info->rsize : SMB3_DEFAULT_IOSIZE; | |
419 | rsize = min_t(unsigned int, rsize, server->max_read); | |
420 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
421 | if (server->rdma) { | |
422 | if (server->sign) | |
423 | rsize = min_t(unsigned int, | |
424 | rsize, server->smbd_conn->max_fragmented_recv_size); | |
425 | else | |
426 | rsize = min_t(unsigned int, | |
427 | rsize, server->smbd_conn->max_readwrite_size); | |
428 | } | |
429 | #endif | |
430 | ||
431 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
432 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
433 | ||
434 | return rsize; | |
435 | } | |
fe856be4 AA |
436 | |
437 | static int | |
438 | parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf, | |
439 | size_t buf_len, | |
440 | struct cifs_server_iface **iface_list, | |
441 | size_t *iface_count) | |
442 | { | |
443 | struct network_interface_info_ioctl_rsp *p; | |
444 | struct sockaddr_in *addr4; | |
445 | struct sockaddr_in6 *addr6; | |
446 | struct iface_info_ipv4 *p4; | |
447 | struct iface_info_ipv6 *p6; | |
448 | struct cifs_server_iface *info; | |
449 | ssize_t bytes_left; | |
450 | size_t next = 0; | |
451 | int nb_iface = 0; | |
452 | int rc = 0; | |
453 | ||
454 | *iface_list = NULL; | |
455 | *iface_count = 0; | |
456 | ||
457 | /* | |
458 | * Fist pass: count and sanity check | |
459 | */ | |
460 | ||
461 | bytes_left = buf_len; | |
462 | p = buf; | |
463 | while (bytes_left >= sizeof(*p)) { | |
464 | nb_iface++; | |
465 | next = le32_to_cpu(p->Next); | |
466 | if (!next) { | |
467 | bytes_left -= sizeof(*p); | |
468 | break; | |
469 | } | |
470 | p = (struct network_interface_info_ioctl_rsp *)((u8 *)p+next); | |
471 | bytes_left -= next; | |
472 | } | |
473 | ||
474 | if (!nb_iface) { | |
475 | cifs_dbg(VFS, "%s: malformed interface info\n", __func__); | |
476 | rc = -EINVAL; | |
477 | goto out; | |
478 | } | |
479 | ||
480 | if (bytes_left || p->Next) | |
481 | cifs_dbg(VFS, "%s: incomplete interface info\n", __func__); | |
482 | ||
483 | ||
484 | /* | |
485 | * Second pass: extract info to internal structure | |
486 | */ | |
487 | ||
488 | *iface_list = kcalloc(nb_iface, sizeof(**iface_list), GFP_KERNEL); | |
489 | if (!*iface_list) { | |
490 | rc = -ENOMEM; | |
491 | goto out; | |
492 | } | |
493 | ||
494 | info = *iface_list; | |
495 | bytes_left = buf_len; | |
496 | p = buf; | |
497 | while (bytes_left >= sizeof(*p)) { | |
498 | info->speed = le64_to_cpu(p->LinkSpeed); | |
499 | info->rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE); | |
500 | info->rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE); | |
501 | ||
502 | cifs_dbg(FYI, "%s: adding iface %zu\n", __func__, *iface_count); | |
503 | cifs_dbg(FYI, "%s: speed %zu bps\n", __func__, info->speed); | |
504 | cifs_dbg(FYI, "%s: capabilities 0x%08x\n", __func__, | |
505 | le32_to_cpu(p->Capability)); | |
506 | ||
507 | switch (p->Family) { | |
508 | /* | |
509 | * The kernel and wire socket structures have the same | |
510 | * layout and use network byte order but make the | |
511 | * conversion explicit in case either one changes. | |
512 | */ | |
513 | case INTERNETWORK: | |
514 | addr4 = (struct sockaddr_in *)&info->sockaddr; | |
515 | p4 = (struct iface_info_ipv4 *)p->Buffer; | |
516 | addr4->sin_family = AF_INET; | |
517 | memcpy(&addr4->sin_addr, &p4->IPv4Address, 4); | |
518 | ||
519 | /* [MS-SMB2] 2.2.32.5.1.1 Clients MUST ignore these */ | |
520 | addr4->sin_port = cpu_to_be16(CIFS_PORT); | |
521 | ||
522 | cifs_dbg(FYI, "%s: ipv4 %pI4\n", __func__, | |
523 | &addr4->sin_addr); | |
524 | break; | |
525 | case INTERNETWORKV6: | |
526 | addr6 = (struct sockaddr_in6 *)&info->sockaddr; | |
527 | p6 = (struct iface_info_ipv6 *)p->Buffer; | |
528 | addr6->sin6_family = AF_INET6; | |
529 | memcpy(&addr6->sin6_addr, &p6->IPv6Address, 16); | |
530 | ||
531 | /* [MS-SMB2] 2.2.32.5.1.2 Clients MUST ignore these */ | |
532 | addr6->sin6_flowinfo = 0; | |
533 | addr6->sin6_scope_id = 0; | |
534 | addr6->sin6_port = cpu_to_be16(CIFS_PORT); | |
535 | ||
536 | cifs_dbg(FYI, "%s: ipv6 %pI6\n", __func__, | |
537 | &addr6->sin6_addr); | |
538 | break; | |
539 | default: | |
540 | cifs_dbg(VFS, | |
541 | "%s: skipping unsupported socket family\n", | |
542 | __func__); | |
543 | goto next_iface; | |
544 | } | |
545 | ||
546 | (*iface_count)++; | |
547 | info++; | |
548 | next_iface: | |
549 | next = le32_to_cpu(p->Next); | |
550 | if (!next) | |
551 | break; | |
552 | p = (struct network_interface_info_ioctl_rsp *)((u8 *)p+next); | |
553 | bytes_left -= next; | |
554 | } | |
555 | ||
556 | if (!*iface_count) { | |
557 | rc = -EINVAL; | |
558 | goto out; | |
559 | } | |
560 | ||
561 | out: | |
562 | if (rc) { | |
563 | kfree(*iface_list); | |
564 | *iface_count = 0; | |
565 | *iface_list = NULL; | |
566 | } | |
567 | return rc; | |
568 | } | |
569 | ||
570 | ||
c481e9fe SF |
571 | static int |
572 | SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon) | |
573 | { | |
574 | int rc; | |
575 | unsigned int ret_data_len = 0; | |
fe856be4 AA |
576 | struct network_interface_info_ioctl_rsp *out_buf = NULL; |
577 | struct cifs_server_iface *iface_list; | |
578 | size_t iface_count; | |
579 | struct cifs_ses *ses = tcon->ses; | |
c481e9fe SF |
580 | |
581 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
582 | FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */, | |
583 | NULL /* no data input */, 0 /* no data input */, | |
153322f7 | 584 | CIFSMaxBufSize, (char **)&out_buf, &ret_data_len); |
c3ed4402 SF |
585 | if (rc == -EOPNOTSUPP) { |
586 | cifs_dbg(FYI, | |
587 | "server does not support query network interfaces\n"); | |
588 | goto out; | |
589 | } else if (rc != 0) { | |
9ffc5412 | 590 | cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc); |
fe856be4 | 591 | goto out; |
9ffc5412 | 592 | } |
fe856be4 AA |
593 | |
594 | rc = parse_server_interfaces(out_buf, ret_data_len, | |
595 | &iface_list, &iface_count); | |
596 | if (rc) | |
597 | goto out; | |
598 | ||
599 | spin_lock(&ses->iface_lock); | |
600 | kfree(ses->iface_list); | |
601 | ses->iface_list = iface_list; | |
602 | ses->iface_count = iface_count; | |
603 | ses->iface_last_update = jiffies; | |
604 | spin_unlock(&ses->iface_lock); | |
605 | ||
606 | out: | |
24df1483 | 607 | kfree(out_buf); |
c481e9fe SF |
608 | return rc; |
609 | } | |
c481e9fe | 610 | |
9da6ec77 RS |
611 | static void |
612 | smb2_close_cached_fid(struct kref *ref) | |
a93864d9 | 613 | { |
9da6ec77 RS |
614 | struct cached_fid *cfid = container_of(ref, struct cached_fid, |
615 | refcount); | |
616 | ||
a93864d9 RS |
617 | if (cfid->is_valid) { |
618 | cifs_dbg(FYI, "clear cached root file handle\n"); | |
619 | SMB2_close(0, cfid->tcon, cfid->fid->persistent_fid, | |
620 | cfid->fid->volatile_fid); | |
621 | cfid->is_valid = false; | |
b0f6df73 | 622 | cfid->file_all_info_is_valid = false; |
a93864d9 | 623 | } |
9da6ec77 RS |
624 | } |
625 | ||
626 | void close_shroot(struct cached_fid *cfid) | |
627 | { | |
628 | mutex_lock(&cfid->fid_mutex); | |
629 | kref_put(&cfid->refcount, smb2_close_cached_fid); | |
a93864d9 RS |
630 | mutex_unlock(&cfid->fid_mutex); |
631 | } | |
632 | ||
9da6ec77 RS |
633 | void |
634 | smb2_cached_lease_break(struct work_struct *work) | |
635 | { | |
636 | struct cached_fid *cfid = container_of(work, | |
637 | struct cached_fid, lease_break); | |
638 | ||
639 | close_shroot(cfid); | |
640 | } | |
641 | ||
3d4ef9a1 SF |
642 | /* |
643 | * Open the directory at the root of a share | |
644 | */ | |
645 | int open_shroot(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid) | |
646 | { | |
b0f6df73 RS |
647 | struct cifs_ses *ses = tcon->ses; |
648 | struct TCP_Server_Info *server = ses->server; | |
649 | struct cifs_open_parms oparms; | |
650 | struct smb2_create_rsp *o_rsp = NULL; | |
651 | struct smb2_query_info_rsp *qi_rsp = NULL; | |
652 | int resp_buftype[2]; | |
653 | struct smb_rqst rqst[2]; | |
654 | struct kvec rsp_iov[2]; | |
655 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
656 | struct kvec qi_iov[1]; | |
657 | int rc, flags = 0; | |
658 | __le16 utf16_path = 0; /* Null - since an open of top of share */ | |
a93864d9 | 659 | u8 oplock = SMB2_OPLOCK_LEVEL_II; |
3d4ef9a1 | 660 | |
a93864d9 RS |
661 | mutex_lock(&tcon->crfid.fid_mutex); |
662 | if (tcon->crfid.is_valid) { | |
3d4ef9a1 | 663 | cifs_dbg(FYI, "found a cached root file handle\n"); |
a93864d9 | 664 | memcpy(pfid, tcon->crfid.fid, sizeof(struct cifs_fid)); |
9da6ec77 | 665 | kref_get(&tcon->crfid.refcount); |
a93864d9 | 666 | mutex_unlock(&tcon->crfid.fid_mutex); |
3d4ef9a1 SF |
667 | return 0; |
668 | } | |
669 | ||
b0f6df73 RS |
670 | if (smb3_encryption_required(tcon)) |
671 | flags |= CIFS_TRANSFORM_REQ; | |
672 | ||
673 | memset(rqst, 0, sizeof(rqst)); | |
674 | resp_buftype[0] = resp_buftype[1] = CIFS_NO_BUFFER; | |
675 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
676 | ||
677 | /* Open */ | |
678 | memset(&open_iov, 0, sizeof(open_iov)); | |
679 | rqst[0].rq_iov = open_iov; | |
680 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
681 | ||
682 | oparms.tcon = tcon; | |
683 | oparms.create_options = 0; | |
684 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
685 | oparms.disposition = FILE_OPEN; | |
686 | oparms.fid = pfid; | |
687 | oparms.reconnect = false; | |
688 | ||
689 | rc = SMB2_open_init(tcon, &rqst[0], &oplock, &oparms, &utf16_path); | |
690 | if (rc) | |
691 | goto oshr_exit; | |
692 | smb2_set_next_command(tcon, &rqst[0]); | |
693 | ||
694 | memset(&qi_iov, 0, sizeof(qi_iov)); | |
695 | rqst[1].rq_iov = qi_iov; | |
696 | rqst[1].rq_nvec = 1; | |
697 | ||
698 | rc = SMB2_query_info_init(tcon, &rqst[1], COMPOUND_FID, | |
699 | COMPOUND_FID, FILE_ALL_INFORMATION, | |
700 | SMB2_O_INFO_FILE, 0, | |
701 | sizeof(struct smb2_file_all_info) + | |
702 | PATH_MAX * 2, 0, NULL); | |
703 | if (rc) | |
704 | goto oshr_exit; | |
705 | ||
706 | smb2_set_related(&rqst[1]); | |
707 | ||
708 | rc = compound_send_recv(xid, ses, flags, 2, rqst, | |
709 | resp_buftype, rsp_iov); | |
710 | if (rc) | |
711 | goto oshr_exit; | |
712 | ||
713 | o_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base; | |
714 | oparms.fid->persistent_fid = o_rsp->PersistentFileId; | |
715 | oparms.fid->volatile_fid = o_rsp->VolatileFileId; | |
716 | #ifdef CONFIG_CIFS_DEBUG2 | |
717 | oparms.fid->mid = le64_to_cpu(o_rsp->sync_hdr.MessageId); | |
718 | #endif /* CIFS_DEBUG2 */ | |
719 | ||
b0f6df73 RS |
720 | memcpy(tcon->crfid.fid, pfid, sizeof(struct cifs_fid)); |
721 | tcon->crfid.tcon = tcon; | |
722 | tcon->crfid.is_valid = true; | |
723 | kref_init(&tcon->crfid.refcount); | |
b0f6df73 | 724 | |
2f94a312 RS |
725 | if (o_rsp->OplockLevel == SMB2_OPLOCK_LEVEL_LEASE) { |
726 | kref_get(&tcon->crfid.refcount); | |
727 | oplock = smb2_parse_lease_state(server, o_rsp, | |
728 | &oparms.fid->epoch, | |
729 | oparms.fid->lease_key); | |
730 | } else | |
731 | goto oshr_exit; | |
b0f6df73 RS |
732 | |
733 | qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base; | |
734 | if (le32_to_cpu(qi_rsp->OutputBufferLength) < sizeof(struct smb2_file_all_info)) | |
735 | goto oshr_exit; | |
4811e309 | 736 | if (!smb2_validate_and_copy_iov( |
b0f6df73 RS |
737 | le16_to_cpu(qi_rsp->OutputBufferOffset), |
738 | sizeof(struct smb2_file_all_info), | |
739 | &rsp_iov[1], sizeof(struct smb2_file_all_info), | |
4811e309 RS |
740 | (char *)&tcon->crfid.file_all_info)) |
741 | tcon->crfid.file_all_info_is_valid = 1; | |
b0f6df73 RS |
742 | |
743 | oshr_exit: | |
a93864d9 | 744 | mutex_unlock(&tcon->crfid.fid_mutex); |
b0f6df73 RS |
745 | SMB2_open_free(&rqst[0]); |
746 | SMB2_query_info_free(&rqst[1]); | |
747 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
748 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
3d4ef9a1 SF |
749 | return rc; |
750 | } | |
751 | ||
af6a12ea SF |
752 | static void |
753 | smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
754 | { | |
755 | int rc; | |
756 | __le16 srch_path = 0; /* Null - open root of share */ | |
757 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
758 | struct cifs_open_parms oparms; | |
759 | struct cifs_fid fid; | |
3d4ef9a1 | 760 | bool no_cached_open = tcon->nohandlecache; |
af6a12ea SF |
761 | |
762 | oparms.tcon = tcon; | |
763 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
764 | oparms.disposition = FILE_OPEN; | |
765 | oparms.create_options = 0; | |
766 | oparms.fid = &fid; | |
767 | oparms.reconnect = false; | |
768 | ||
3d4ef9a1 | 769 | if (no_cached_open) |
9d874c36 RS |
770 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, |
771 | NULL); | |
3d4ef9a1 SF |
772 | else |
773 | rc = open_shroot(xid, tcon, &fid); | |
774 | ||
af6a12ea SF |
775 | if (rc) |
776 | return; | |
777 | ||
c481e9fe | 778 | SMB3_request_interfaces(xid, tcon); |
c481e9fe | 779 | |
af6a12ea SF |
780 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
781 | FS_ATTRIBUTE_INFORMATION); | |
782 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
783 | FS_DEVICE_INFORMATION); | |
21ba3845 SF |
784 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
785 | FS_VOLUME_INFORMATION); | |
af6a12ea SF |
786 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
787 | FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */ | |
3d4ef9a1 SF |
788 | if (no_cached_open) |
789 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
9da6ec77 RS |
790 | else |
791 | close_shroot(&tcon->crfid); | |
792 | ||
af6a12ea SF |
793 | return; |
794 | } | |
795 | ||
34f62640 SF |
796 | static void |
797 | smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
798 | { | |
799 | int rc; | |
800 | __le16 srch_path = 0; /* Null - open root of share */ | |
801 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
802 | struct cifs_open_parms oparms; | |
803 | struct cifs_fid fid; | |
804 | ||
805 | oparms.tcon = tcon; | |
806 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
807 | oparms.disposition = FILE_OPEN; | |
808 | oparms.create_options = 0; | |
809 | oparms.fid = &fid; | |
810 | oparms.reconnect = false; | |
811 | ||
9d874c36 | 812 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, NULL); |
34f62640 SF |
813 | if (rc) |
814 | return; | |
815 | ||
2167114c SF |
816 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
817 | FS_ATTRIBUTE_INFORMATION); | |
818 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
819 | FS_DEVICE_INFORMATION); | |
34f62640 SF |
820 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
821 | return; | |
822 | } | |
823 | ||
2503a0db PS |
824 | static int |
825 | smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, | |
826 | struct cifs_sb_info *cifs_sb, const char *full_path) | |
827 | { | |
828 | int rc; | |
2503a0db | 829 | __le16 *utf16_path; |
2e44b288 | 830 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
831 | struct cifs_open_parms oparms; |
832 | struct cifs_fid fid; | |
2503a0db | 833 | |
a93864d9 | 834 | if ((*full_path == 0) && tcon->crfid.is_valid) |
3d4ef9a1 SF |
835 | return 0; |
836 | ||
2503a0db PS |
837 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); |
838 | if (!utf16_path) | |
839 | return -ENOMEM; | |
840 | ||
064f6047 PS |
841 | oparms.tcon = tcon; |
842 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
843 | oparms.disposition = FILE_OPEN; | |
5e19697b SF |
844 | if (backup_cred(cifs_sb)) |
845 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; | |
846 | else | |
847 | oparms.create_options = 0; | |
064f6047 | 848 | oparms.fid = &fid; |
9cbc0b73 | 849 | oparms.reconnect = false; |
064f6047 | 850 | |
9d874c36 | 851 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL); |
2503a0db PS |
852 | if (rc) { |
853 | kfree(utf16_path); | |
854 | return rc; | |
855 | } | |
856 | ||
064f6047 | 857 | rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
2503a0db PS |
858 | kfree(utf16_path); |
859 | return rc; | |
860 | } | |
861 | ||
be4cb9e3 PS |
862 | static int |
863 | smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, | |
864 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
865 | u64 *uniqueid, FILE_ALL_INFO *data) | |
866 | { | |
867 | *uniqueid = le64_to_cpu(data->IndexNumber); | |
868 | return 0; | |
869 | } | |
870 | ||
b7546bc5 PS |
871 | static int |
872 | smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, | |
873 | struct cifs_fid *fid, FILE_ALL_INFO *data) | |
874 | { | |
875 | int rc; | |
876 | struct smb2_file_all_info *smb2_data; | |
877 | ||
1bbe4997 | 878 | smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2, |
b7546bc5 PS |
879 | GFP_KERNEL); |
880 | if (smb2_data == NULL) | |
881 | return -ENOMEM; | |
882 | ||
883 | rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid, | |
884 | smb2_data); | |
885 | if (!rc) | |
886 | move_smb2_info_to_cifs(data, smb2_data); | |
887 | kfree(smb2_data); | |
888 | return rc; | |
889 | } | |
890 | ||
1368f155 | 891 | #ifdef CONFIG_CIFS_XATTR |
95907fea RS |
892 | static ssize_t |
893 | move_smb2_ea_to_cifs(char *dst, size_t dst_size, | |
894 | struct smb2_file_full_ea_info *src, size_t src_size, | |
895 | const unsigned char *ea_name) | |
896 | { | |
897 | int rc = 0; | |
898 | unsigned int ea_name_len = ea_name ? strlen(ea_name) : 0; | |
899 | char *name, *value; | |
0c5d6cb6 | 900 | size_t buf_size = dst_size; |
95907fea RS |
901 | size_t name_len, value_len, user_name_len; |
902 | ||
903 | while (src_size > 0) { | |
904 | name = &src->ea_data[0]; | |
905 | name_len = (size_t)src->ea_name_length; | |
906 | value = &src->ea_data[src->ea_name_length + 1]; | |
907 | value_len = (size_t)le16_to_cpu(src->ea_value_length); | |
908 | ||
909 | if (name_len == 0) { | |
910 | break; | |
911 | } | |
912 | ||
913 | if (src_size < 8 + name_len + 1 + value_len) { | |
914 | cifs_dbg(FYI, "EA entry goes beyond length of list\n"); | |
915 | rc = -EIO; | |
916 | goto out; | |
917 | } | |
918 | ||
919 | if (ea_name) { | |
920 | if (ea_name_len == name_len && | |
921 | memcmp(ea_name, name, name_len) == 0) { | |
922 | rc = value_len; | |
923 | if (dst_size == 0) | |
924 | goto out; | |
925 | if (dst_size < value_len) { | |
926 | rc = -ERANGE; | |
927 | goto out; | |
928 | } | |
929 | memcpy(dst, value, value_len); | |
930 | goto out; | |
931 | } | |
932 | } else { | |
933 | /* 'user.' plus a terminating null */ | |
934 | user_name_len = 5 + 1 + name_len; | |
935 | ||
0c5d6cb6 RS |
936 | if (buf_size == 0) { |
937 | /* skip copy - calc size only */ | |
938 | rc += user_name_len; | |
939 | } else if (dst_size >= user_name_len) { | |
95907fea RS |
940 | dst_size -= user_name_len; |
941 | memcpy(dst, "user.", 5); | |
942 | dst += 5; | |
943 | memcpy(dst, src->ea_data, name_len); | |
944 | dst += name_len; | |
945 | *dst = 0; | |
946 | ++dst; | |
0c5d6cb6 | 947 | rc += user_name_len; |
95907fea RS |
948 | } else { |
949 | /* stop before overrun buffer */ | |
950 | rc = -ERANGE; | |
951 | break; | |
952 | } | |
953 | } | |
954 | ||
955 | if (!src->next_entry_offset) | |
956 | break; | |
957 | ||
958 | if (src_size < le32_to_cpu(src->next_entry_offset)) { | |
959 | /* stop before overrun buffer */ | |
960 | rc = -ERANGE; | |
961 | break; | |
962 | } | |
963 | src_size -= le32_to_cpu(src->next_entry_offset); | |
964 | src = (void *)((char *)src + | |
965 | le32_to_cpu(src->next_entry_offset)); | |
966 | } | |
967 | ||
968 | /* didn't find the named attribute */ | |
969 | if (ea_name) | |
970 | rc = -ENODATA; | |
971 | ||
972 | out: | |
973 | return (ssize_t)rc; | |
974 | } | |
975 | ||
976 | static ssize_t | |
977 | smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon, | |
978 | const unsigned char *path, const unsigned char *ea_name, | |
979 | char *ea_data, size_t buf_size, | |
980 | struct cifs_sb_info *cifs_sb) | |
981 | { | |
982 | int rc; | |
983 | __le16 *utf16_path; | |
f9793b6f RS |
984 | struct kvec rsp_iov = {NULL, 0}; |
985 | int buftype = CIFS_NO_BUFFER; | |
986 | struct smb2_query_info_rsp *rsp; | |
987 | struct smb2_file_full_ea_info *info = NULL; | |
95907fea RS |
988 | |
989 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
990 | if (!utf16_path) | |
991 | return -ENOMEM; | |
992 | ||
f9793b6f RS |
993 | rc = smb2_query_info_compound(xid, tcon, utf16_path, |
994 | FILE_READ_EA, | |
995 | FILE_FULL_EA_INFORMATION, | |
996 | SMB2_O_INFO_FILE, | |
c4627e66 RS |
997 | CIFSMaxBufSize - |
998 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
999 | MAX_SMB2_CLOSE_RESPONSE_SIZE, | |
f9793b6f | 1000 | &rsp_iov, &buftype, cifs_sb); |
95907fea | 1001 | if (rc) { |
f9793b6f RS |
1002 | /* |
1003 | * If ea_name is NULL (listxattr) and there are no EAs, | |
1004 | * return 0 as it's not an error. Otherwise, the specified | |
1005 | * ea_name was not found. | |
1006 | */ | |
1007 | if (!ea_name && rc == -ENODATA) | |
1008 | rc = 0; | |
1009 | goto qeas_exit; | |
95907fea RS |
1010 | } |
1011 | ||
f9793b6f RS |
1012 | rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; |
1013 | rc = smb2_validate_iov(le16_to_cpu(rsp->OutputBufferOffset), | |
1014 | le32_to_cpu(rsp->OutputBufferLength), | |
1015 | &rsp_iov, | |
1016 | sizeof(struct smb2_file_full_ea_info)); | |
1017 | if (rc) | |
1018 | goto qeas_exit; | |
95907fea | 1019 | |
f9793b6f RS |
1020 | info = (struct smb2_file_full_ea_info *)( |
1021 | le16_to_cpu(rsp->OutputBufferOffset) + (char *)rsp); | |
1022 | rc = move_smb2_ea_to_cifs(ea_data, buf_size, info, | |
1023 | le32_to_cpu(rsp->OutputBufferLength), ea_name); | |
95907fea | 1024 | |
f9793b6f RS |
1025 | qeas_exit: |
1026 | kfree(utf16_path); | |
1027 | free_rsp_buf(buftype, rsp_iov.iov_base); | |
95907fea RS |
1028 | return rc; |
1029 | } | |
1030 | ||
5517554e RS |
1031 | |
1032 | static int | |
1033 | smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, | |
1034 | const char *path, const char *ea_name, const void *ea_value, | |
1035 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
1036 | struct cifs_sb_info *cifs_sb) | |
1037 | { | |
0967e545 | 1038 | struct cifs_ses *ses = tcon->ses; |
0967e545 | 1039 | __le16 *utf16_path = NULL; |
5517554e | 1040 | int ea_name_len = strlen(ea_name); |
0967e545 | 1041 | int flags = 0; |
5517554e | 1042 | int len; |
0967e545 RS |
1043 | struct smb_rqst rqst[3]; |
1044 | int resp_buftype[3]; | |
1045 | struct kvec rsp_iov[3]; | |
1046 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
1047 | struct cifs_open_parms oparms; | |
1048 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1049 | struct cifs_fid fid; | |
1050 | struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE]; | |
1051 | unsigned int size[1]; | |
1052 | void *data[1]; | |
1053 | struct smb2_file_full_ea_info *ea = NULL; | |
1054 | struct kvec close_iov[1]; | |
1055 | int rc; | |
1056 | ||
1057 | if (smb3_encryption_required(tcon)) | |
1058 | flags |= CIFS_TRANSFORM_REQ; | |
5517554e RS |
1059 | |
1060 | if (ea_name_len > 255) | |
1061 | return -EINVAL; | |
1062 | ||
1063 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1064 | if (!utf16_path) | |
1065 | return -ENOMEM; | |
1066 | ||
0967e545 RS |
1067 | memset(rqst, 0, sizeof(rqst)); |
1068 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; | |
1069 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
1070 | ||
21094641 RS |
1071 | if (ses->server->ops->query_all_EAs) { |
1072 | if (!ea_value) { | |
1073 | rc = ses->server->ops->query_all_EAs(xid, tcon, path, | |
1074 | ea_name, NULL, 0, | |
1075 | cifs_sb); | |
1076 | if (rc == -ENODATA) | |
1077 | goto sea_exit; | |
1078 | } | |
1079 | } | |
1080 | ||
0967e545 RS |
1081 | /* Open */ |
1082 | memset(&open_iov, 0, sizeof(open_iov)); | |
1083 | rqst[0].rq_iov = open_iov; | |
1084 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
1085 | ||
1086 | memset(&oparms, 0, sizeof(oparms)); | |
5517554e RS |
1087 | oparms.tcon = tcon; |
1088 | oparms.desired_access = FILE_WRITE_EA; | |
1089 | oparms.disposition = FILE_OPEN; | |
5e19697b SF |
1090 | if (backup_cred(cifs_sb)) |
1091 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; | |
1092 | else | |
1093 | oparms.create_options = 0; | |
5517554e RS |
1094 | oparms.fid = &fid; |
1095 | oparms.reconnect = false; | |
1096 | ||
0967e545 RS |
1097 | rc = SMB2_open_init(tcon, &rqst[0], &oplock, &oparms, utf16_path); |
1098 | if (rc) | |
1099 | goto sea_exit; | |
e77fe73c | 1100 | smb2_set_next_command(tcon, &rqst[0]); |
0967e545 RS |
1101 | |
1102 | ||
1103 | /* Set Info */ | |
1104 | memset(&si_iov, 0, sizeof(si_iov)); | |
1105 | rqst[1].rq_iov = si_iov; | |
1106 | rqst[1].rq_nvec = 1; | |
5517554e RS |
1107 | |
1108 | len = sizeof(ea) + ea_name_len + ea_value_len + 1; | |
1109 | ea = kzalloc(len, GFP_KERNEL); | |
1110 | if (ea == NULL) { | |
0967e545 RS |
1111 | rc = -ENOMEM; |
1112 | goto sea_exit; | |
5517554e RS |
1113 | } |
1114 | ||
1115 | ea->ea_name_length = ea_name_len; | |
1116 | ea->ea_value_length = cpu_to_le16(ea_value_len); | |
1117 | memcpy(ea->ea_data, ea_name, ea_name_len + 1); | |
1118 | memcpy(ea->ea_data + ea_name_len + 1, ea_value, ea_value_len); | |
1119 | ||
0967e545 RS |
1120 | size[0] = len; |
1121 | data[0] = ea; | |
1122 | ||
1123 | rc = SMB2_set_info_init(tcon, &rqst[1], COMPOUND_FID, | |
1124 | COMPOUND_FID, current->tgid, | |
1125 | FILE_FULL_EA_INFORMATION, | |
1126 | SMB2_O_INFO_FILE, 0, data, size); | |
e77fe73c | 1127 | smb2_set_next_command(tcon, &rqst[1]); |
0967e545 | 1128 | smb2_set_related(&rqst[1]); |
6aa0c114 | 1129 | |
5517554e | 1130 | |
0967e545 RS |
1131 | /* Close */ |
1132 | memset(&close_iov, 0, sizeof(close_iov)); | |
1133 | rqst[2].rq_iov = close_iov; | |
1134 | rqst[2].rq_nvec = 1; | |
1135 | rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID); | |
1136 | smb2_set_related(&rqst[2]); | |
1137 | ||
1138 | rc = compound_send_recv(xid, ses, flags, 3, rqst, | |
1139 | resp_buftype, rsp_iov); | |
1140 | ||
1141 | sea_exit: | |
1142 | kfree(ea); | |
1143 | kfree(utf16_path); | |
1144 | SMB2_open_free(&rqst[0]); | |
1145 | SMB2_set_info_free(&rqst[1]); | |
1146 | SMB2_close_free(&rqst[2]); | |
1147 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
1148 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1149 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
5517554e RS |
1150 | return rc; |
1151 | } | |
1368f155 | 1152 | #endif |
5517554e | 1153 | |
9094fad1 PS |
1154 | static bool |
1155 | smb2_can_echo(struct TCP_Server_Info *server) | |
1156 | { | |
1157 | return server->echoes; | |
1158 | } | |
1159 | ||
d60622eb PS |
1160 | static void |
1161 | smb2_clear_stats(struct cifs_tcon *tcon) | |
1162 | { | |
d60622eb PS |
1163 | int i; |
1164 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { | |
1165 | atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0); | |
1166 | atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0); | |
1167 | } | |
d60622eb PS |
1168 | } |
1169 | ||
769ee6a4 SF |
1170 | static void |
1171 | smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon) | |
1172 | { | |
1173 | seq_puts(m, "\n\tShare Capabilities:"); | |
1174 | if (tcon->capabilities & SMB2_SHARE_CAP_DFS) | |
1175 | seq_puts(m, " DFS,"); | |
1176 | if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY) | |
1177 | seq_puts(m, " CONTINUOUS AVAILABILITY,"); | |
1178 | if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT) | |
1179 | seq_puts(m, " SCALEOUT,"); | |
1180 | if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER) | |
1181 | seq_puts(m, " CLUSTER,"); | |
1182 | if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC) | |
1183 | seq_puts(m, " ASYMMETRIC,"); | |
1184 | if (tcon->capabilities == 0) | |
1185 | seq_puts(m, " None"); | |
af6a12ea SF |
1186 | if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE) |
1187 | seq_puts(m, " Aligned,"); | |
1188 | if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE) | |
1189 | seq_puts(m, " Partition Aligned,"); | |
1190 | if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY) | |
1191 | seq_puts(m, " SSD,"); | |
1192 | if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED) | |
1193 | seq_puts(m, " TRIM-support,"); | |
1194 | ||
769ee6a4 | 1195 | seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags); |
e0386e44 | 1196 | seq_printf(m, "\n\ttid: 0x%x", tcon->tid); |
af6a12ea SF |
1197 | if (tcon->perf_sector_size) |
1198 | seq_printf(m, "\tOptimal sector size: 0x%x", | |
1199 | tcon->perf_sector_size); | |
e0386e44 | 1200 | seq_printf(m, "\tMaximal Access: 0x%x", tcon->maximal_access); |
769ee6a4 SF |
1201 | } |
1202 | ||
d60622eb PS |
1203 | static void |
1204 | smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon) | |
1205 | { | |
d60622eb PS |
1206 | atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent; |
1207 | atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed; | |
1995d28f SF |
1208 | |
1209 | /* | |
1210 | * Can't display SMB2_NEGOTIATE, SESSION_SETUP, LOGOFF, CANCEL and ECHO | |
1211 | * totals (requests sent) since those SMBs are per-session not per tcon | |
1212 | */ | |
52ce1ac4 SF |
1213 | seq_printf(m, "\nBytes read: %llu Bytes written: %llu", |
1214 | (long long)(tcon->bytes_read), | |
1215 | (long long)(tcon->bytes_written)); | |
fae8044c SF |
1216 | seq_printf(m, "\nOpen files: %d total (local), %d open on server", |
1217 | atomic_read(&tcon->num_local_opens), | |
1218 | atomic_read(&tcon->num_remote_opens)); | |
1995d28f | 1219 | seq_printf(m, "\nTreeConnects: %d total %d failed", |
d60622eb PS |
1220 | atomic_read(&sent[SMB2_TREE_CONNECT_HE]), |
1221 | atomic_read(&failed[SMB2_TREE_CONNECT_HE])); | |
1995d28f | 1222 | seq_printf(m, "\nTreeDisconnects: %d total %d failed", |
d60622eb PS |
1223 | atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]), |
1224 | atomic_read(&failed[SMB2_TREE_DISCONNECT_HE])); | |
1995d28f | 1225 | seq_printf(m, "\nCreates: %d total %d failed", |
d60622eb PS |
1226 | atomic_read(&sent[SMB2_CREATE_HE]), |
1227 | atomic_read(&failed[SMB2_CREATE_HE])); | |
1995d28f | 1228 | seq_printf(m, "\nCloses: %d total %d failed", |
d60622eb PS |
1229 | atomic_read(&sent[SMB2_CLOSE_HE]), |
1230 | atomic_read(&failed[SMB2_CLOSE_HE])); | |
1995d28f | 1231 | seq_printf(m, "\nFlushes: %d total %d failed", |
d60622eb PS |
1232 | atomic_read(&sent[SMB2_FLUSH_HE]), |
1233 | atomic_read(&failed[SMB2_FLUSH_HE])); | |
1995d28f | 1234 | seq_printf(m, "\nReads: %d total %d failed", |
d60622eb PS |
1235 | atomic_read(&sent[SMB2_READ_HE]), |
1236 | atomic_read(&failed[SMB2_READ_HE])); | |
1995d28f | 1237 | seq_printf(m, "\nWrites: %d total %d failed", |
d60622eb PS |
1238 | atomic_read(&sent[SMB2_WRITE_HE]), |
1239 | atomic_read(&failed[SMB2_WRITE_HE])); | |
1995d28f | 1240 | seq_printf(m, "\nLocks: %d total %d failed", |
d60622eb PS |
1241 | atomic_read(&sent[SMB2_LOCK_HE]), |
1242 | atomic_read(&failed[SMB2_LOCK_HE])); | |
1995d28f | 1243 | seq_printf(m, "\nIOCTLs: %d total %d failed", |
d60622eb PS |
1244 | atomic_read(&sent[SMB2_IOCTL_HE]), |
1245 | atomic_read(&failed[SMB2_IOCTL_HE])); | |
1995d28f | 1246 | seq_printf(m, "\nQueryDirectories: %d total %d failed", |
d60622eb PS |
1247 | atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]), |
1248 | atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE])); | |
1995d28f | 1249 | seq_printf(m, "\nChangeNotifies: %d total %d failed", |
d60622eb PS |
1250 | atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]), |
1251 | atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE])); | |
1995d28f | 1252 | seq_printf(m, "\nQueryInfos: %d total %d failed", |
d60622eb PS |
1253 | atomic_read(&sent[SMB2_QUERY_INFO_HE]), |
1254 | atomic_read(&failed[SMB2_QUERY_INFO_HE])); | |
1995d28f | 1255 | seq_printf(m, "\nSetInfos: %d total %d failed", |
d60622eb PS |
1256 | atomic_read(&sent[SMB2_SET_INFO_HE]), |
1257 | atomic_read(&failed[SMB2_SET_INFO_HE])); | |
1258 | seq_printf(m, "\nOplockBreaks: %d sent %d failed", | |
1259 | atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]), | |
1260 | atomic_read(&failed[SMB2_OPLOCK_BREAK_HE])); | |
d60622eb PS |
1261 | } |
1262 | ||
f0df737e PS |
1263 | static void |
1264 | smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock) | |
1265 | { | |
2b0143b5 | 1266 | struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry)); |
53ef1016 PS |
1267 | struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server; |
1268 | ||
f0df737e PS |
1269 | cfile->fid.persistent_fid = fid->persistent_fid; |
1270 | cfile->fid.volatile_fid = fid->volatile_fid; | |
dfe33f9a SF |
1271 | #ifdef CONFIG_CIFS_DEBUG2 |
1272 | cfile->fid.mid = fid->mid; | |
1273 | #endif /* CIFS_DEBUG2 */ | |
42873b0a PS |
1274 | server->ops->set_oplock_level(cinode, oplock, fid->epoch, |
1275 | &fid->purge_cache); | |
18cceb6a | 1276 | cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode); |
94f87371 | 1277 | memcpy(cfile->fid.create_guid, fid->create_guid, 16); |
f0df737e PS |
1278 | } |
1279 | ||
760ad0ca | 1280 | static void |
f0df737e PS |
1281 | smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon, |
1282 | struct cifs_fid *fid) | |
1283 | { | |
760ad0ca | 1284 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
f0df737e PS |
1285 | } |
1286 | ||
41c1358e SF |
1287 | static int |
1288 | SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon, | |
1289 | u64 persistent_fid, u64 volatile_fid, | |
1290 | struct copychunk_ioctl *pcchunk) | |
1291 | { | |
1292 | int rc; | |
1293 | unsigned int ret_data_len; | |
1294 | struct resume_key_req *res_key; | |
1295 | ||
1296 | rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid, | |
1297 | FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */, | |
153322f7 | 1298 | NULL, 0 /* no input */, CIFSMaxBufSize, |
41c1358e SF |
1299 | (char **)&res_key, &ret_data_len); |
1300 | ||
1301 | if (rc) { | |
1302 | cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc); | |
1303 | goto req_res_key_exit; | |
1304 | } | |
1305 | if (ret_data_len < sizeof(struct resume_key_req)) { | |
1306 | cifs_dbg(VFS, "Invalid refcopy resume key length\n"); | |
1307 | rc = -EINVAL; | |
1308 | goto req_res_key_exit; | |
1309 | } | |
1310 | memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE); | |
1311 | ||
1312 | req_res_key_exit: | |
1313 | kfree(res_key); | |
1314 | return rc; | |
1315 | } | |
1316 | ||
f5b05d62 RS |
1317 | static int |
1318 | smb2_ioctl_query_info(const unsigned int xid, | |
8d8b26e5 RS |
1319 | struct cifs_tcon *tcon, |
1320 | __le16 *path, int is_dir, | |
f5b05d62 RS |
1321 | unsigned long p) |
1322 | { | |
f5b05d62 RS |
1323 | struct cifs_ses *ses = tcon->ses; |
1324 | char __user *arg = (char __user *)p; | |
1325 | struct smb_query_info qi; | |
1326 | struct smb_query_info __user *pqi; | |
1327 | int rc = 0; | |
1328 | int flags = 0; | |
f5778c39 RS |
1329 | struct smb2_query_info_rsp *qi_rsp = NULL; |
1330 | struct smb2_ioctl_rsp *io_rsp = NULL; | |
8d8b26e5 RS |
1331 | void *buffer = NULL; |
1332 | struct smb_rqst rqst[3]; | |
1333 | int resp_buftype[3]; | |
1334 | struct kvec rsp_iov[3]; | |
1335 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
1336 | struct cifs_open_parms oparms; | |
1337 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1338 | struct cifs_fid fid; | |
1339 | struct kvec qi_iov[1]; | |
f5778c39 | 1340 | struct kvec io_iov[SMB2_IOCTL_IOV_SIZE]; |
8d8b26e5 RS |
1341 | struct kvec close_iov[1]; |
1342 | ||
1343 | memset(rqst, 0, sizeof(rqst)); | |
1344 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; | |
1345 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
f5b05d62 RS |
1346 | |
1347 | if (copy_from_user(&qi, arg, sizeof(struct smb_query_info))) | |
1348 | return -EFAULT; | |
1349 | ||
1350 | if (qi.output_buffer_length > 1024) | |
1351 | return -EINVAL; | |
1352 | ||
1353 | if (!ses || !(ses->server)) | |
1354 | return -EIO; | |
1355 | ||
1356 | if (smb3_encryption_required(tcon)) | |
1357 | flags |= CIFS_TRANSFORM_REQ; | |
1358 | ||
1359 | buffer = kmalloc(qi.output_buffer_length, GFP_KERNEL); | |
1360 | if (buffer == NULL) | |
1361 | return -ENOMEM; | |
1362 | ||
1363 | if (copy_from_user(buffer, arg + sizeof(struct smb_query_info), | |
1364 | qi.output_buffer_length)) { | |
8d8b26e5 RS |
1365 | rc = -EFAULT; |
1366 | goto iqinf_exit; | |
f5b05d62 RS |
1367 | } |
1368 | ||
8d8b26e5 RS |
1369 | /* Open */ |
1370 | memset(&open_iov, 0, sizeof(open_iov)); | |
1371 | rqst[0].rq_iov = open_iov; | |
1372 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
1373 | ||
1374 | memset(&oparms, 0, sizeof(oparms)); | |
1375 | oparms.tcon = tcon; | |
1376 | oparms.desired_access = FILE_READ_ATTRIBUTES | READ_CONTROL; | |
1377 | oparms.disposition = FILE_OPEN; | |
1378 | if (is_dir) | |
1379 | oparms.create_options = CREATE_NOT_FILE; | |
1380 | else | |
1381 | oparms.create_options = CREATE_NOT_DIR; | |
1382 | oparms.fid = &fid; | |
1383 | oparms.reconnect = false; | |
1384 | ||
1385 | rc = SMB2_open_init(tcon, &rqst[0], &oplock, &oparms, path); | |
1386 | if (rc) | |
1387 | goto iqinf_exit; | |
e77fe73c | 1388 | smb2_set_next_command(tcon, &rqst[0]); |
8d8b26e5 RS |
1389 | |
1390 | /* Query */ | |
31ba4331 SF |
1391 | if (qi.flags & PASSTHRU_FSCTL) { |
1392 | /* Can eventually relax perm check since server enforces too */ | |
1393 | if (!capable(CAP_SYS_ADMIN)) | |
1394 | rc = -EPERM; | |
f5778c39 RS |
1395 | else { |
1396 | memset(&io_iov, 0, sizeof(io_iov)); | |
1397 | rqst[1].rq_iov = io_iov; | |
1398 | rqst[1].rq_nvec = SMB2_IOCTL_IOV_SIZE; | |
1399 | ||
1400 | rc = SMB2_ioctl_init(tcon, &rqst[1], | |
1401 | COMPOUND_FID, COMPOUND_FID, | |
1402 | qi.info_type, true, NULL, | |
153322f7 | 1403 | 0, CIFSMaxBufSize); |
f5778c39 | 1404 | } |
31ba4331 SF |
1405 | } else if (qi.flags == PASSTHRU_QUERY_INFO) { |
1406 | memset(&qi_iov, 0, sizeof(qi_iov)); | |
1407 | rqst[1].rq_iov = qi_iov; | |
1408 | rqst[1].rq_nvec = 1; | |
1409 | ||
1410 | rc = SMB2_query_info_init(tcon, &rqst[1], COMPOUND_FID, | |
1411 | COMPOUND_FID, qi.file_info_class, | |
1412 | qi.info_type, qi.additional_information, | |
f5b05d62 RS |
1413 | qi.input_buffer_length, |
1414 | qi.output_buffer_length, buffer); | |
31ba4331 SF |
1415 | } else { /* unknown flags */ |
1416 | cifs_dbg(VFS, "invalid passthru query flags: 0x%x\n", qi.flags); | |
1417 | rc = -EINVAL; | |
1418 | } | |
1419 | ||
f5b05d62 RS |
1420 | if (rc) |
1421 | goto iqinf_exit; | |
e77fe73c | 1422 | smb2_set_next_command(tcon, &rqst[1]); |
8d8b26e5 RS |
1423 | smb2_set_related(&rqst[1]); |
1424 | ||
1425 | /* Close */ | |
1426 | memset(&close_iov, 0, sizeof(close_iov)); | |
1427 | rqst[2].rq_iov = close_iov; | |
1428 | rqst[2].rq_nvec = 1; | |
f5b05d62 | 1429 | |
8d8b26e5 | 1430 | rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID); |
f5b05d62 RS |
1431 | if (rc) |
1432 | goto iqinf_exit; | |
8d8b26e5 | 1433 | smb2_set_related(&rqst[2]); |
f5b05d62 | 1434 | |
8d8b26e5 RS |
1435 | rc = compound_send_recv(xid, ses, flags, 3, rqst, |
1436 | resp_buftype, rsp_iov); | |
1437 | if (rc) | |
1438 | goto iqinf_exit; | |
f5778c39 RS |
1439 | if (qi.flags & PASSTHRU_FSCTL) { |
1440 | pqi = (struct smb_query_info __user *)arg; | |
1441 | io_rsp = (struct smb2_ioctl_rsp *)rsp_iov[1].iov_base; | |
1442 | if (le32_to_cpu(io_rsp->OutputCount) < qi.input_buffer_length) | |
1443 | qi.input_buffer_length = le32_to_cpu(io_rsp->OutputCount); | |
1444 | if (copy_to_user(&pqi->input_buffer_length, &qi.input_buffer_length, | |
1445 | sizeof(qi.input_buffer_length))) { | |
1446 | rc = -EFAULT; | |
1447 | goto iqinf_exit; | |
1448 | } | |
1449 | if (copy_to_user(pqi + 1, &io_rsp[1], qi.input_buffer_length)) { | |
1450 | rc = -EFAULT; | |
1451 | goto iqinf_exit; | |
1452 | } | |
1453 | } else { | |
1454 | pqi = (struct smb_query_info __user *)arg; | |
1455 | qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base; | |
1456 | if (le32_to_cpu(qi_rsp->OutputBufferLength) < qi.input_buffer_length) | |
1457 | qi.input_buffer_length = le32_to_cpu(qi_rsp->OutputBufferLength); | |
1458 | if (copy_to_user(&pqi->input_buffer_length, &qi.input_buffer_length, | |
1459 | sizeof(qi.input_buffer_length))) { | |
1460 | rc = -EFAULT; | |
1461 | goto iqinf_exit; | |
1462 | } | |
1463 | if (copy_to_user(pqi + 1, qi_rsp->Buffer, qi.input_buffer_length)) { | |
1464 | rc = -EFAULT; | |
1465 | goto iqinf_exit; | |
1466 | } | |
f5b05d62 RS |
1467 | } |
1468 | ||
1469 | iqinf_exit: | |
8d8b26e5 RS |
1470 | kfree(buffer); |
1471 | SMB2_open_free(&rqst[0]); | |
f5778c39 RS |
1472 | if (qi.flags & PASSTHRU_FSCTL) |
1473 | SMB2_ioctl_free(&rqst[1]); | |
1474 | else | |
1475 | SMB2_query_info_free(&rqst[1]); | |
1476 | ||
8d8b26e5 RS |
1477 | SMB2_close_free(&rqst[2]); |
1478 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
1479 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1480 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
f5b05d62 RS |
1481 | return rc; |
1482 | } | |
1483 | ||
620d8745 | 1484 | static ssize_t |
312bbc59 | 1485 | smb2_copychunk_range(const unsigned int xid, |
41c1358e SF |
1486 | struct cifsFileInfo *srcfile, |
1487 | struct cifsFileInfo *trgtfile, u64 src_off, | |
1488 | u64 len, u64 dest_off) | |
1489 | { | |
1490 | int rc; | |
1491 | unsigned int ret_data_len; | |
1492 | struct copychunk_ioctl *pcchunk; | |
9bf0c9cd SF |
1493 | struct copychunk_ioctl_rsp *retbuf = NULL; |
1494 | struct cifs_tcon *tcon; | |
1495 | int chunks_copied = 0; | |
1496 | bool chunk_sizes_updated = false; | |
620d8745 | 1497 | ssize_t bytes_written, total_bytes_written = 0; |
41c1358e SF |
1498 | |
1499 | pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL); | |
1500 | ||
1501 | if (pcchunk == NULL) | |
1502 | return -ENOMEM; | |
1503 | ||
312bbc59 | 1504 | cifs_dbg(FYI, "in smb2_copychunk_range - about to call request res key\n"); |
41c1358e SF |
1505 | /* Request a key from the server to identify the source of the copy */ |
1506 | rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink), | |
1507 | srcfile->fid.persistent_fid, | |
1508 | srcfile->fid.volatile_fid, pcchunk); | |
1509 | ||
1510 | /* Note: request_res_key sets res_key null only if rc !=0 */ | |
1511 | if (rc) | |
9bf0c9cd | 1512 | goto cchunk_out; |
41c1358e SF |
1513 | |
1514 | /* For now array only one chunk long, will make more flexible later */ | |
bc09d141 | 1515 | pcchunk->ChunkCount = cpu_to_le32(1); |
41c1358e | 1516 | pcchunk->Reserved = 0; |
41c1358e SF |
1517 | pcchunk->Reserved2 = 0; |
1518 | ||
9bf0c9cd | 1519 | tcon = tlink_tcon(trgtfile->tlink); |
41c1358e | 1520 | |
9bf0c9cd SF |
1521 | while (len > 0) { |
1522 | pcchunk->SourceOffset = cpu_to_le64(src_off); | |
1523 | pcchunk->TargetOffset = cpu_to_le64(dest_off); | |
1524 | pcchunk->Length = | |
1525 | cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk)); | |
41c1358e | 1526 | |
9bf0c9cd SF |
1527 | /* Request server copy to target from src identified by key */ |
1528 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
1529 | trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, | |
63a83b86 | 1530 | true /* is_fsctl */, (char *)pcchunk, |
153322f7 SF |
1531 | sizeof(struct copychunk_ioctl), CIFSMaxBufSize, |
1532 | (char **)&retbuf, &ret_data_len); | |
9bf0c9cd SF |
1533 | if (rc == 0) { |
1534 | if (ret_data_len != | |
1535 | sizeof(struct copychunk_ioctl_rsp)) { | |
1536 | cifs_dbg(VFS, "invalid cchunk response size\n"); | |
1537 | rc = -EIO; | |
1538 | goto cchunk_out; | |
1539 | } | |
1540 | if (retbuf->TotalBytesWritten == 0) { | |
1541 | cifs_dbg(FYI, "no bytes copied\n"); | |
1542 | rc = -EIO; | |
1543 | goto cchunk_out; | |
1544 | } | |
1545 | /* | |
1546 | * Check if server claimed to write more than we asked | |
1547 | */ | |
1548 | if (le32_to_cpu(retbuf->TotalBytesWritten) > | |
1549 | le32_to_cpu(pcchunk->Length)) { | |
1550 | cifs_dbg(VFS, "invalid copy chunk response\n"); | |
1551 | rc = -EIO; | |
1552 | goto cchunk_out; | |
1553 | } | |
1554 | if (le32_to_cpu(retbuf->ChunksWritten) != 1) { | |
1555 | cifs_dbg(VFS, "invalid num chunks written\n"); | |
1556 | rc = -EIO; | |
1557 | goto cchunk_out; | |
1558 | } | |
1559 | chunks_copied++; | |
1560 | ||
620d8745 SP |
1561 | bytes_written = le32_to_cpu(retbuf->TotalBytesWritten); |
1562 | src_off += bytes_written; | |
1563 | dest_off += bytes_written; | |
1564 | len -= bytes_written; | |
1565 | total_bytes_written += bytes_written; | |
9bf0c9cd | 1566 | |
620d8745 | 1567 | cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %zu\n", |
9bf0c9cd SF |
1568 | le32_to_cpu(retbuf->ChunksWritten), |
1569 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
620d8745 | 1570 | bytes_written); |
9bf0c9cd SF |
1571 | } else if (rc == -EINVAL) { |
1572 | if (ret_data_len != sizeof(struct copychunk_ioctl_rsp)) | |
1573 | goto cchunk_out; | |
1574 | ||
1575 | cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n", | |
1576 | le32_to_cpu(retbuf->ChunksWritten), | |
1577 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
1578 | le32_to_cpu(retbuf->TotalBytesWritten)); | |
1579 | ||
1580 | /* | |
1581 | * Check if this is the first request using these sizes, | |
1582 | * (ie check if copy succeed once with original sizes | |
1583 | * and check if the server gave us different sizes after | |
1584 | * we already updated max sizes on previous request). | |
1585 | * if not then why is the server returning an error now | |
1586 | */ | |
1587 | if ((chunks_copied != 0) || chunk_sizes_updated) | |
1588 | goto cchunk_out; | |
1589 | ||
1590 | /* Check that server is not asking us to grow size */ | |
1591 | if (le32_to_cpu(retbuf->ChunkBytesWritten) < | |
1592 | tcon->max_bytes_chunk) | |
1593 | tcon->max_bytes_chunk = | |
1594 | le32_to_cpu(retbuf->ChunkBytesWritten); | |
1595 | else | |
1596 | goto cchunk_out; /* server gave us bogus size */ | |
1597 | ||
1598 | /* No need to change MaxChunks since already set to 1 */ | |
1599 | chunk_sizes_updated = true; | |
2477bc58 SP |
1600 | } else |
1601 | goto cchunk_out; | |
9bf0c9cd | 1602 | } |
41c1358e | 1603 | |
9bf0c9cd | 1604 | cchunk_out: |
41c1358e | 1605 | kfree(pcchunk); |
24df1483 | 1606 | kfree(retbuf); |
620d8745 SP |
1607 | if (rc) |
1608 | return rc; | |
1609 | else | |
1610 | return total_bytes_written; | |
41c1358e SF |
1611 | } |
1612 | ||
7a5cfb19 PS |
1613 | static int |
1614 | smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon, | |
1615 | struct cifs_fid *fid) | |
1616 | { | |
1617 | return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
1618 | } | |
1619 | ||
09a4707e PS |
1620 | static unsigned int |
1621 | smb2_read_data_offset(char *buf) | |
1622 | { | |
1623 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
1624 | return rsp->DataOffset; | |
1625 | } | |
1626 | ||
1627 | static unsigned int | |
74dcf418 | 1628 | smb2_read_data_length(char *buf, bool in_remaining) |
09a4707e PS |
1629 | { |
1630 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
74dcf418 LL |
1631 | |
1632 | if (in_remaining) | |
1633 | return le32_to_cpu(rsp->DataRemaining); | |
1634 | ||
09a4707e PS |
1635 | return le32_to_cpu(rsp->DataLength); |
1636 | } | |
1637 | ||
d8e05039 PS |
1638 | |
1639 | static int | |
db8b631d | 1640 | smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid, |
d8e05039 PS |
1641 | struct cifs_io_parms *parms, unsigned int *bytes_read, |
1642 | char **buf, int *buf_type) | |
1643 | { | |
db8b631d SF |
1644 | parms->persistent_fid = pfid->persistent_fid; |
1645 | parms->volatile_fid = pfid->volatile_fid; | |
d8e05039 PS |
1646 | return SMB2_read(xid, parms, bytes_read, buf, buf_type); |
1647 | } | |
1648 | ||
009d3443 | 1649 | static int |
db8b631d | 1650 | smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid, |
009d3443 PS |
1651 | struct cifs_io_parms *parms, unsigned int *written, |
1652 | struct kvec *iov, unsigned long nr_segs) | |
1653 | { | |
1654 | ||
db8b631d SF |
1655 | parms->persistent_fid = pfid->persistent_fid; |
1656 | parms->volatile_fid = pfid->volatile_fid; | |
009d3443 PS |
1657 | return SMB2_write(xid, parms, written, iov, nr_segs); |
1658 | } | |
1659 | ||
d43cc793 SF |
1660 | /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */ |
1661 | static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon, | |
1662 | struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse) | |
1663 | { | |
1664 | struct cifsInodeInfo *cifsi; | |
1665 | int rc; | |
1666 | ||
1667 | cifsi = CIFS_I(inode); | |
1668 | ||
1669 | /* if file already sparse don't bother setting sparse again */ | |
1670 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse) | |
1671 | return true; /* already sparse */ | |
1672 | ||
1673 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse) | |
1674 | return true; /* already not sparse */ | |
1675 | ||
1676 | /* | |
1677 | * Can't check for sparse support on share the usual way via the | |
1678 | * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share | |
1679 | * since Samba server doesn't set the flag on the share, yet | |
1680 | * supports the set sparse FSCTL and returns sparse correctly | |
1681 | * in the file attributes. If we fail setting sparse though we | |
1682 | * mark that server does not support sparse files for this share | |
1683 | * to avoid repeatedly sending the unsupported fsctl to server | |
1684 | * if the file is repeatedly extended. | |
1685 | */ | |
1686 | if (tcon->broken_sparse_sup) | |
1687 | return false; | |
1688 | ||
1689 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1690 | cfile->fid.volatile_fid, FSCTL_SET_SPARSE, | |
63a83b86 | 1691 | true /* is_fctl */, |
153322f7 | 1692 | &setsparse, 1, CIFSMaxBufSize, NULL, NULL); |
d43cc793 SF |
1693 | if (rc) { |
1694 | tcon->broken_sparse_sup = true; | |
1695 | cifs_dbg(FYI, "set sparse rc = %d\n", rc); | |
1696 | return false; | |
1697 | } | |
1698 | ||
1699 | if (setsparse) | |
1700 | cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE; | |
1701 | else | |
1702 | cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE); | |
1703 | ||
1704 | return true; | |
1705 | } | |
1706 | ||
c839ff24 PS |
1707 | static int |
1708 | smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon, | |
1709 | struct cifsFileInfo *cfile, __u64 size, bool set_alloc) | |
1710 | { | |
1711 | __le64 eof = cpu_to_le64(size); | |
3d1a3745 SF |
1712 | struct inode *inode; |
1713 | ||
1714 | /* | |
1715 | * If extending file more than one page make sparse. Many Linux fs | |
1716 | * make files sparse by default when extending via ftruncate | |
1717 | */ | |
2b0143b5 | 1718 | inode = d_inode(cfile->dentry); |
3d1a3745 SF |
1719 | |
1720 | if (!set_alloc && (size > inode->i_size + 8192)) { | |
3d1a3745 | 1721 | __u8 set_sparse = 1; |
d43cc793 SF |
1722 | |
1723 | /* whether set sparse succeeds or not, extend the file */ | |
1724 | smb2_set_sparse(xid, tcon, cfile, inode, set_sparse); | |
3d1a3745 SF |
1725 | } |
1726 | ||
c839ff24 | 1727 | return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
3764cbd1 | 1728 | cfile->fid.volatile_fid, cfile->pid, &eof); |
c839ff24 PS |
1729 | } |
1730 | ||
02b16665 SF |
1731 | static int |
1732 | smb2_duplicate_extents(const unsigned int xid, | |
1733 | struct cifsFileInfo *srcfile, | |
1734 | struct cifsFileInfo *trgtfile, u64 src_off, | |
1735 | u64 len, u64 dest_off) | |
1736 | { | |
1737 | int rc; | |
1738 | unsigned int ret_data_len; | |
02b16665 SF |
1739 | struct duplicate_extents_to_file dup_ext_buf; |
1740 | struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink); | |
1741 | ||
1742 | /* server fileays advertise duplicate extent support with this flag */ | |
1743 | if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) & | |
1744 | FILE_SUPPORTS_BLOCK_REFCOUNTING) == 0) | |
1745 | return -EOPNOTSUPP; | |
1746 | ||
1747 | dup_ext_buf.VolatileFileHandle = srcfile->fid.volatile_fid; | |
1748 | dup_ext_buf.PersistentFileHandle = srcfile->fid.persistent_fid; | |
1749 | dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off); | |
1750 | dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off); | |
1751 | dup_ext_buf.ByteCount = cpu_to_le64(len); | |
1752 | cifs_dbg(FYI, "duplicate extents: src off %lld dst off %lld len %lld", | |
1753 | src_off, dest_off, len); | |
1754 | ||
1755 | rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false); | |
1756 | if (rc) | |
1757 | goto duplicate_extents_out; | |
1758 | ||
1759 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
1760 | trgtfile->fid.volatile_fid, | |
1761 | FSCTL_DUPLICATE_EXTENTS_TO_FILE, | |
63a83b86 | 1762 | true /* is_fsctl */, |
51146625 | 1763 | (char *)&dup_ext_buf, |
02b16665 | 1764 | sizeof(struct duplicate_extents_to_file), |
153322f7 | 1765 | CIFSMaxBufSize, NULL, |
02b16665 SF |
1766 | &ret_data_len); |
1767 | ||
1768 | if (ret_data_len > 0) | |
1769 | cifs_dbg(FYI, "non-zero response length in duplicate extents"); | |
1770 | ||
1771 | duplicate_extents_out: | |
1772 | return rc; | |
1773 | } | |
02b16665 | 1774 | |
64a5cfa6 SF |
1775 | static int |
1776 | smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, | |
1777 | struct cifsFileInfo *cfile) | |
1778 | { | |
1779 | return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid, | |
1780 | cfile->fid.volatile_fid); | |
1781 | } | |
1782 | ||
b3152e2c SF |
1783 | static int |
1784 | smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon, | |
1785 | struct cifsFileInfo *cfile) | |
1786 | { | |
1787 | struct fsctl_set_integrity_information_req integr_info; | |
b3152e2c SF |
1788 | unsigned int ret_data_len; |
1789 | ||
1790 | integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED); | |
1791 | integr_info.Flags = 0; | |
1792 | integr_info.Reserved = 0; | |
1793 | ||
1794 | return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1795 | cfile->fid.volatile_fid, | |
1796 | FSCTL_SET_INTEGRITY_INFORMATION, | |
63a83b86 | 1797 | true /* is_fsctl */, |
51146625 | 1798 | (char *)&integr_info, |
b3152e2c | 1799 | sizeof(struct fsctl_set_integrity_information_req), |
153322f7 | 1800 | CIFSMaxBufSize, NULL, |
b3152e2c SF |
1801 | &ret_data_len); |
1802 | ||
1803 | } | |
1804 | ||
e02789a5 SF |
1805 | /* GMT Token is @GMT-YYYY.MM.DD-HH.MM.SS Unicode which is 48 bytes + null */ |
1806 | #define GMT_TOKEN_SIZE 50 | |
1807 | ||
153322f7 SF |
1808 | #define MIN_SNAPSHOT_ARRAY_SIZE 16 /* See MS-SMB2 section 3.3.5.15.1 */ |
1809 | ||
e02789a5 SF |
1810 | /* |
1811 | * Input buffer contains (empty) struct smb_snapshot array with size filled in | |
1812 | * For output see struct SRV_SNAPSHOT_ARRAY in MS-SMB2 section 2.2.32.2 | |
1813 | */ | |
834170c8 SF |
1814 | static int |
1815 | smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon, | |
1816 | struct cifsFileInfo *cfile, void __user *ioc_buf) | |
1817 | { | |
1818 | char *retbuf = NULL; | |
1819 | unsigned int ret_data_len = 0; | |
1820 | int rc; | |
153322f7 | 1821 | u32 max_response_size; |
834170c8 SF |
1822 | struct smb_snapshot_array snapshot_in; |
1823 | ||
153322f7 SF |
1824 | if (get_user(ret_data_len, (unsigned int __user *)ioc_buf)) |
1825 | return -EFAULT; | |
1826 | ||
1827 | /* | |
1828 | * Note that for snapshot queries that servers like Azure expect that | |
1829 | * the first query be minimal size (and just used to get the number/size | |
1830 | * of previous versions) so response size must be specified as EXACTLY | |
1831 | * sizeof(struct snapshot_array) which is 16 when rounded up to multiple | |
1832 | * of eight bytes. | |
1833 | */ | |
1834 | if (ret_data_len == 0) | |
1835 | max_response_size = MIN_SNAPSHOT_ARRAY_SIZE; | |
1836 | else | |
1837 | max_response_size = CIFSMaxBufSize; | |
1838 | ||
834170c8 SF |
1839 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, |
1840 | cfile->fid.volatile_fid, | |
1841 | FSCTL_SRV_ENUMERATE_SNAPSHOTS, | |
63a83b86 | 1842 | true /* is_fsctl */, |
153322f7 | 1843 | NULL, 0 /* no input data */, max_response_size, |
834170c8 SF |
1844 | (char **)&retbuf, |
1845 | &ret_data_len); | |
1846 | cifs_dbg(FYI, "enum snaphots ioctl returned %d and ret buflen is %d\n", | |
1847 | rc, ret_data_len); | |
1848 | if (rc) | |
1849 | return rc; | |
1850 | ||
1851 | if (ret_data_len && (ioc_buf != NULL) && (retbuf != NULL)) { | |
1852 | /* Fixup buffer */ | |
1853 | if (copy_from_user(&snapshot_in, ioc_buf, | |
1854 | sizeof(struct smb_snapshot_array))) { | |
1855 | rc = -EFAULT; | |
1856 | kfree(retbuf); | |
1857 | return rc; | |
1858 | } | |
834170c8 | 1859 | |
e02789a5 SF |
1860 | /* |
1861 | * Check for min size, ie not large enough to fit even one GMT | |
1862 | * token (snapshot). On the first ioctl some users may pass in | |
1863 | * smaller size (or zero) to simply get the size of the array | |
1864 | * so the user space caller can allocate sufficient memory | |
1865 | * and retry the ioctl again with larger array size sufficient | |
1866 | * to hold all of the snapshot GMT tokens on the second try. | |
1867 | */ | |
1868 | if (snapshot_in.snapshot_array_size < GMT_TOKEN_SIZE) | |
1869 | ret_data_len = sizeof(struct smb_snapshot_array); | |
1870 | ||
1871 | /* | |
1872 | * We return struct SRV_SNAPSHOT_ARRAY, followed by | |
1873 | * the snapshot array (of 50 byte GMT tokens) each | |
1874 | * representing an available previous version of the data | |
1875 | */ | |
1876 | if (ret_data_len > (snapshot_in.snapshot_array_size + | |
1877 | sizeof(struct smb_snapshot_array))) | |
1878 | ret_data_len = snapshot_in.snapshot_array_size + | |
1879 | sizeof(struct smb_snapshot_array); | |
834170c8 SF |
1880 | |
1881 | if (copy_to_user(ioc_buf, retbuf, ret_data_len)) | |
1882 | rc = -EFAULT; | |
1883 | } | |
1884 | ||
1885 | kfree(retbuf); | |
1886 | return rc; | |
1887 | } | |
1888 | ||
d324f08d PS |
1889 | static int |
1890 | smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, | |
1891 | const char *path, struct cifs_sb_info *cifs_sb, | |
1892 | struct cifs_fid *fid, __u16 search_flags, | |
1893 | struct cifs_search_info *srch_inf) | |
1894 | { | |
1895 | __le16 *utf16_path; | |
1896 | int rc; | |
2e44b288 | 1897 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 | 1898 | struct cifs_open_parms oparms; |
d324f08d PS |
1899 | |
1900 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1901 | if (!utf16_path) | |
1902 | return -ENOMEM; | |
1903 | ||
064f6047 PS |
1904 | oparms.tcon = tcon; |
1905 | oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; | |
1906 | oparms.disposition = FILE_OPEN; | |
5e19697b SF |
1907 | if (backup_cred(cifs_sb)) |
1908 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; | |
1909 | else | |
1910 | oparms.create_options = 0; | |
064f6047 | 1911 | oparms.fid = fid; |
9cbc0b73 | 1912 | oparms.reconnect = false; |
064f6047 | 1913 | |
9d874c36 | 1914 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL); |
d324f08d PS |
1915 | kfree(utf16_path); |
1916 | if (rc) { | |
dcd87838 | 1917 | cifs_dbg(FYI, "open dir failed rc=%d\n", rc); |
d324f08d PS |
1918 | return rc; |
1919 | } | |
1920 | ||
1921 | srch_inf->entries_in_buffer = 0; | |
0595751f | 1922 | srch_inf->index_of_last_entry = 2; |
d324f08d | 1923 | |
064f6047 PS |
1924 | rc = SMB2_query_directory(xid, tcon, fid->persistent_fid, |
1925 | fid->volatile_fid, 0, srch_inf); | |
d324f08d | 1926 | if (rc) { |
dcd87838 | 1927 | cifs_dbg(FYI, "query directory failed rc=%d\n", rc); |
064f6047 | 1928 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
d324f08d PS |
1929 | } |
1930 | return rc; | |
1931 | } | |
1932 | ||
1933 | static int | |
1934 | smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon, | |
1935 | struct cifs_fid *fid, __u16 search_flags, | |
1936 | struct cifs_search_info *srch_inf) | |
1937 | { | |
1938 | return SMB2_query_directory(xid, tcon, fid->persistent_fid, | |
1939 | fid->volatile_fid, 0, srch_inf); | |
1940 | } | |
1941 | ||
1942 | static int | |
1943 | smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon, | |
1944 | struct cifs_fid *fid) | |
1945 | { | |
1946 | return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
1947 | } | |
1948 | ||
2e44b288 PS |
1949 | /* |
1950 | * If we negotiate SMB2 protocol and get STATUS_PENDING - update | |
1951 | * the number of credits and return true. Otherwise - return false. | |
1952 | */ | |
1953 | static bool | |
66265f13 | 1954 | smb2_is_status_pending(char *buf, struct TCP_Server_Info *server) |
2e44b288 | 1955 | { |
49f466bd | 1956 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
2e44b288 | 1957 | |
31473fc4 | 1958 | if (shdr->Status != STATUS_PENDING) |
2e44b288 PS |
1959 | return false; |
1960 | ||
66265f13 | 1961 | if (shdr->CreditRequest) { |
2e44b288 | 1962 | spin_lock(&server->req_lock); |
31473fc4 | 1963 | server->credits += le16_to_cpu(shdr->CreditRequest); |
2e44b288 PS |
1964 | spin_unlock(&server->req_lock); |
1965 | wake_up(&server->request_q); | |
1966 | } | |
1967 | ||
1968 | return true; | |
1969 | } | |
1970 | ||
511c54a2 PS |
1971 | static bool |
1972 | smb2_is_session_expired(char *buf) | |
1973 | { | |
49f466bd | 1974 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
511c54a2 | 1975 | |
d81243c6 MS |
1976 | if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED && |
1977 | shdr->Status != STATUS_USER_SESSION_DELETED) | |
511c54a2 PS |
1978 | return false; |
1979 | ||
e68a932b SF |
1980 | trace_smb3_ses_expired(shdr->TreeId, shdr->SessionId, |
1981 | le16_to_cpu(shdr->Command), | |
1982 | le64_to_cpu(shdr->MessageId)); | |
d81243c6 | 1983 | cifs_dbg(FYI, "Session expired or deleted\n"); |
e68a932b | 1984 | |
511c54a2 PS |
1985 | return true; |
1986 | } | |
1987 | ||
983c88a4 PS |
1988 | static int |
1989 | smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid, | |
1990 | struct cifsInodeInfo *cinode) | |
1991 | { | |
0822f514 PS |
1992 | if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING) |
1993 | return SMB2_lease_break(0, tcon, cinode->lease_key, | |
1994 | smb2_get_lease_state(cinode)); | |
1995 | ||
983c88a4 PS |
1996 | return SMB2_oplock_break(0, tcon, fid->persistent_fid, |
1997 | fid->volatile_fid, | |
18cceb6a | 1998 | CIFS_CACHE_READ(cinode) ? 1 : 0); |
983c88a4 PS |
1999 | } |
2000 | ||
c5a5f38f | 2001 | void |
730928c8 RS |
2002 | smb2_set_related(struct smb_rqst *rqst) |
2003 | { | |
2004 | struct smb2_sync_hdr *shdr; | |
2005 | ||
2006 | shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base); | |
2007 | shdr->Flags |= SMB2_FLAGS_RELATED_OPERATIONS; | |
2008 | } | |
2009 | ||
2010 | char smb2_padding[7] = {0, 0, 0, 0, 0, 0, 0}; | |
2011 | ||
c5a5f38f | 2012 | void |
e77fe73c | 2013 | smb2_set_next_command(struct cifs_tcon *tcon, struct smb_rqst *rqst) |
730928c8 RS |
2014 | { |
2015 | struct smb2_sync_hdr *shdr; | |
e77fe73c RS |
2016 | struct cifs_ses *ses = tcon->ses; |
2017 | struct TCP_Server_Info *server = ses->server; | |
730928c8 | 2018 | unsigned long len = smb_rqst_len(server, rqst); |
e77fe73c | 2019 | int i, num_padding; |
730928c8 RS |
2020 | |
2021 | /* SMB headers in a compound are 8 byte aligned. */ | |
e77fe73c RS |
2022 | |
2023 | /* No padding needed */ | |
2024 | if (!(len & 7)) | |
2025 | goto finished; | |
2026 | ||
2027 | num_padding = 8 - (len & 7); | |
2028 | if (!smb3_encryption_required(tcon)) { | |
2029 | /* | |
2030 | * If we do not have encryption then we can just add an extra | |
2031 | * iov for the padding. | |
2032 | */ | |
2033 | rqst->rq_iov[rqst->rq_nvec].iov_base = smb2_padding; | |
2034 | rqst->rq_iov[rqst->rq_nvec].iov_len = num_padding; | |
2035 | rqst->rq_nvec++; | |
2036 | len += num_padding; | |
2037 | } else { | |
2038 | /* | |
2039 | * We can not add a small padding iov for the encryption case | |
2040 | * because the encryption framework can not handle the padding | |
2041 | * iovs. | |
2042 | * We have to flatten this into a single buffer and add | |
2043 | * the padding to it. | |
2044 | */ | |
2045 | for (i = 1; i < rqst->rq_nvec; i++) { | |
2046 | memcpy(rqst->rq_iov[0].iov_base + | |
2047 | rqst->rq_iov[0].iov_len, | |
2048 | rqst->rq_iov[i].iov_base, | |
2049 | rqst->rq_iov[i].iov_len); | |
2050 | rqst->rq_iov[0].iov_len += rqst->rq_iov[i].iov_len; | |
271b9c0c | 2051 | } |
e77fe73c RS |
2052 | memset(rqst->rq_iov[0].iov_base + rqst->rq_iov[0].iov_len, |
2053 | 0, num_padding); | |
2054 | rqst->rq_iov[0].iov_len += num_padding; | |
2055 | len += num_padding; | |
2056 | rqst->rq_nvec = 1; | |
730928c8 RS |
2057 | } |
2058 | ||
e77fe73c | 2059 | finished: |
730928c8 RS |
2060 | shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base); |
2061 | shdr->NextCommand = cpu_to_le32(len); | |
2062 | } | |
2063 | ||
07d3b2e4 RS |
2064 | /* |
2065 | * Passes the query info response back to the caller on success. | |
2066 | * Caller need to free this with free_rsp_buf(). | |
2067 | */ | |
f9793b6f | 2068 | int |
07d3b2e4 RS |
2069 | smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon, |
2070 | __le16 *utf16_path, u32 desired_access, | |
2071 | u32 class, u32 type, u32 output_len, | |
f9793b6f RS |
2072 | struct kvec *rsp, int *buftype, |
2073 | struct cifs_sb_info *cifs_sb) | |
6fc05c25 | 2074 | { |
07d3b2e4 | 2075 | struct cifs_ses *ses = tcon->ses; |
07d3b2e4 | 2076 | int flags = 0; |
730928c8 RS |
2077 | struct smb_rqst rqst[3]; |
2078 | int resp_buftype[3]; | |
2079 | struct kvec rsp_iov[3]; | |
4d8dfafc | 2080 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; |
730928c8 RS |
2081 | struct kvec qi_iov[1]; |
2082 | struct kvec close_iov[1]; | |
6fc05c25 | 2083 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
2084 | struct cifs_open_parms oparms; |
2085 | struct cifs_fid fid; | |
730928c8 RS |
2086 | int rc; |
2087 | ||
2088 | if (smb3_encryption_required(tcon)) | |
2089 | flags |= CIFS_TRANSFORM_REQ; | |
2090 | ||
2091 | memset(rqst, 0, sizeof(rqst)); | |
c5a5f38f | 2092 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; |
730928c8 RS |
2093 | memset(rsp_iov, 0, sizeof(rsp_iov)); |
2094 | ||
2095 | memset(&open_iov, 0, sizeof(open_iov)); | |
2096 | rqst[0].rq_iov = open_iov; | |
4d8dfafc | 2097 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; |
064f6047 PS |
2098 | |
2099 | oparms.tcon = tcon; | |
07d3b2e4 | 2100 | oparms.desired_access = desired_access; |
064f6047 | 2101 | oparms.disposition = FILE_OPEN; |
f9793b6f RS |
2102 | if (cifs_sb && backup_cred(cifs_sb)) |
2103 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; | |
2104 | else | |
2105 | oparms.create_options = 0; | |
064f6047 | 2106 | oparms.fid = &fid; |
9cbc0b73 | 2107 | oparms.reconnect = false; |
6fc05c25 | 2108 | |
07d3b2e4 | 2109 | rc = SMB2_open_init(tcon, &rqst[0], &oplock, &oparms, utf16_path); |
6fc05c25 | 2110 | if (rc) |
07d3b2e4 | 2111 | goto qic_exit; |
e77fe73c | 2112 | smb2_set_next_command(tcon, &rqst[0]); |
730928c8 RS |
2113 | |
2114 | memset(&qi_iov, 0, sizeof(qi_iov)); | |
2115 | rqst[1].rq_iov = qi_iov; | |
2116 | rqst[1].rq_nvec = 1; | |
2117 | ||
2118 | rc = SMB2_query_info_init(tcon, &rqst[1], COMPOUND_FID, COMPOUND_FID, | |
07d3b2e4 RS |
2119 | class, type, 0, |
2120 | output_len, 0, | |
f5b05d62 | 2121 | NULL); |
730928c8 | 2122 | if (rc) |
07d3b2e4 | 2123 | goto qic_exit; |
e77fe73c | 2124 | smb2_set_next_command(tcon, &rqst[1]); |
730928c8 RS |
2125 | smb2_set_related(&rqst[1]); |
2126 | ||
2127 | memset(&close_iov, 0, sizeof(close_iov)); | |
2128 | rqst[2].rq_iov = close_iov; | |
2129 | rqst[2].rq_nvec = 1; | |
2130 | ||
2131 | rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID); | |
2132 | if (rc) | |
07d3b2e4 | 2133 | goto qic_exit; |
730928c8 RS |
2134 | smb2_set_related(&rqst[2]); |
2135 | ||
2136 | rc = compound_send_recv(xid, ses, flags, 3, rqst, | |
2137 | resp_buftype, rsp_iov); | |
f9793b6f RS |
2138 | if (rc) { |
2139 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
07d3b2e4 | 2140 | goto qic_exit; |
f9793b6f | 2141 | } |
07d3b2e4 RS |
2142 | *rsp = rsp_iov[1]; |
2143 | *buftype = resp_buftype[1]; | |
2144 | ||
2145 | qic_exit: | |
2146 | SMB2_open_free(&rqst[0]); | |
2147 | SMB2_query_info_free(&rqst[1]); | |
2148 | SMB2_close_free(&rqst[2]); | |
2149 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
2150 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
2151 | return rc; | |
2152 | } | |
2153 | ||
2154 | static int | |
2155 | smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
2156 | struct kstatfs *buf) | |
2157 | { | |
2158 | struct smb2_query_info_rsp *rsp; | |
2159 | struct smb2_fs_full_size_info *info = NULL; | |
2160 | __le16 utf16_path = 0; /* Null - open root of share */ | |
2161 | struct kvec rsp_iov = {NULL, 0}; | |
2162 | int buftype = CIFS_NO_BUFFER; | |
2163 | int rc; | |
2164 | ||
2165 | ||
2166 | rc = smb2_query_info_compound(xid, tcon, &utf16_path, | |
2167 | FILE_READ_ATTRIBUTES, | |
2168 | FS_FULL_SIZE_INFORMATION, | |
2169 | SMB2_O_INFO_FILESYSTEM, | |
2170 | sizeof(struct smb2_fs_full_size_info), | |
f9793b6f | 2171 | &rsp_iov, &buftype, NULL); |
730928c8 RS |
2172 | if (rc) |
2173 | goto qfs_exit; | |
2174 | ||
07d3b2e4 | 2175 | rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; |
6fc05c25 | 2176 | buf->f_type = SMB2_MAGIC_NUMBER; |
730928c8 RS |
2177 | info = (struct smb2_fs_full_size_info *)( |
2178 | le16_to_cpu(rsp->OutputBufferOffset) + (char *)rsp); | |
2179 | rc = smb2_validate_iov(le16_to_cpu(rsp->OutputBufferOffset), | |
2180 | le32_to_cpu(rsp->OutputBufferLength), | |
07d3b2e4 | 2181 | &rsp_iov, |
730928c8 RS |
2182 | sizeof(struct smb2_fs_full_size_info)); |
2183 | if (!rc) | |
2184 | smb2_copy_fs_info_to_kstatfs(info, buf); | |
2185 | ||
2186 | qfs_exit: | |
07d3b2e4 | 2187 | free_rsp_buf(buftype, rsp_iov.iov_base); |
6fc05c25 PS |
2188 | return rc; |
2189 | } | |
2190 | ||
2d304217 SF |
2191 | static int |
2192 | smb311_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
2193 | struct kstatfs *buf) | |
2194 | { | |
2195 | int rc; | |
2196 | __le16 srch_path = 0; /* Null - open root of share */ | |
2197 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2198 | struct cifs_open_parms oparms; | |
2199 | struct cifs_fid fid; | |
2200 | ||
2201 | if (!tcon->posix_extensions) | |
2202 | return smb2_queryfs(xid, tcon, buf); | |
2203 | ||
2204 | oparms.tcon = tcon; | |
2205 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
2206 | oparms.disposition = FILE_OPEN; | |
2207 | oparms.create_options = 0; | |
2208 | oparms.fid = &fid; | |
2209 | oparms.reconnect = false; | |
2210 | ||
2211 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, NULL); | |
2212 | if (rc) | |
2213 | return rc; | |
2214 | ||
2215 | rc = SMB311_posix_qfs_info(xid, tcon, fid.persistent_fid, | |
2216 | fid.volatile_fid, buf); | |
2217 | buf->f_type = SMB2_MAGIC_NUMBER; | |
2218 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
2219 | return rc; | |
2220 | } | |
2d304217 | 2221 | |
027e8eec PS |
2222 | static bool |
2223 | smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2) | |
2224 | { | |
2225 | return ob1->fid.persistent_fid == ob2->fid.persistent_fid && | |
2226 | ob1->fid.volatile_fid == ob2->fid.volatile_fid; | |
2227 | } | |
2228 | ||
f7ba7fe6 PS |
2229 | static int |
2230 | smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, | |
2231 | __u64 length, __u32 type, int lock, int unlock, bool wait) | |
2232 | { | |
2233 | if (unlock && !lock) | |
2234 | type = SMB2_LOCKFLAG_UNLOCK; | |
2235 | return SMB2_lock(xid, tlink_tcon(cfile->tlink), | |
2236 | cfile->fid.persistent_fid, cfile->fid.volatile_fid, | |
2237 | current->tgid, length, offset, type, wait); | |
2238 | } | |
2239 | ||
b8c32dbb PS |
2240 | static void |
2241 | smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid) | |
2242 | { | |
2243 | memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE); | |
2244 | } | |
2245 | ||
2246 | static void | |
2247 | smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid) | |
2248 | { | |
2249 | memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE); | |
2250 | } | |
2251 | ||
2252 | static void | |
2253 | smb2_new_lease_key(struct cifs_fid *fid) | |
2254 | { | |
fa70b87c | 2255 | generate_random_uuid(fid->lease_key); |
b8c32dbb PS |
2256 | } |
2257 | ||
9d49640a AA |
2258 | static int |
2259 | smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, | |
2260 | const char *search_name, | |
2261 | struct dfs_info3_param **target_nodes, | |
2262 | unsigned int *num_of_nodes, | |
2263 | const struct nls_table *nls_codepage, int remap) | |
2264 | { | |
2265 | int rc; | |
2266 | __le16 *utf16_path = NULL; | |
2267 | int utf16_path_len = 0; | |
2268 | struct cifs_tcon *tcon; | |
2269 | struct fsctl_get_dfs_referral_req *dfs_req = NULL; | |
2270 | struct get_dfs_referral_rsp *dfs_rsp = NULL; | |
2271 | u32 dfs_req_size = 0, dfs_rsp_size = 0; | |
2272 | ||
2273 | cifs_dbg(FYI, "smb2_get_dfs_refer path <%s>\n", search_name); | |
2274 | ||
2275 | /* | |
63a83b86 | 2276 | * Try to use the IPC tcon, otherwise just use any |
9d49640a | 2277 | */ |
63a83b86 AA |
2278 | tcon = ses->tcon_ipc; |
2279 | if (tcon == NULL) { | |
2280 | spin_lock(&cifs_tcp_ses_lock); | |
2281 | tcon = list_first_entry_or_null(&ses->tcon_list, | |
2282 | struct cifs_tcon, | |
2283 | tcon_list); | |
2284 | if (tcon) | |
2285 | tcon->tc_count++; | |
2286 | spin_unlock(&cifs_tcp_ses_lock); | |
2287 | } | |
2288 | ||
2289 | if (tcon == NULL) { | |
9d49640a AA |
2290 | cifs_dbg(VFS, "session %p has no tcon available for a dfs referral request\n", |
2291 | ses); | |
2292 | rc = -ENOTCONN; | |
2293 | goto out; | |
2294 | } | |
2295 | ||
2296 | utf16_path = cifs_strndup_to_utf16(search_name, PATH_MAX, | |
2297 | &utf16_path_len, | |
2298 | nls_codepage, remap); | |
2299 | if (!utf16_path) { | |
2300 | rc = -ENOMEM; | |
2301 | goto out; | |
2302 | } | |
2303 | ||
2304 | dfs_req_size = sizeof(*dfs_req) + utf16_path_len; | |
2305 | dfs_req = kzalloc(dfs_req_size, GFP_KERNEL); | |
2306 | if (!dfs_req) { | |
2307 | rc = -ENOMEM; | |
2308 | goto out; | |
2309 | } | |
2310 | ||
2311 | /* Highest DFS referral version understood */ | |
2312 | dfs_req->MaxReferralLevel = DFS_VERSION; | |
2313 | ||
2314 | /* Path to resolve in an UTF-16 null-terminated string */ | |
2315 | memcpy(dfs_req->RequestFileName, utf16_path, utf16_path_len); | |
2316 | ||
2317 | do { | |
9d49640a AA |
2318 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, |
2319 | FSCTL_DFS_GET_REFERRALS, | |
63a83b86 | 2320 | true /* is_fsctl */, |
153322f7 | 2321 | (char *)dfs_req, dfs_req_size, CIFSMaxBufSize, |
9d49640a | 2322 | (char **)&dfs_rsp, &dfs_rsp_size); |
9d49640a AA |
2323 | } while (rc == -EAGAIN); |
2324 | ||
2325 | if (rc) { | |
2564f2ff | 2326 | if ((rc != -ENOENT) && (rc != -EOPNOTSUPP)) |
5702591f | 2327 | cifs_dbg(VFS, "ioctl error in smb2_get_dfs_refer rc=%d\n", rc); |
9d49640a AA |
2328 | goto out; |
2329 | } | |
2330 | ||
2331 | rc = parse_dfs_referrals(dfs_rsp, dfs_rsp_size, | |
2332 | num_of_nodes, target_nodes, | |
2333 | nls_codepage, remap, search_name, | |
2334 | true /* is_unicode */); | |
2335 | if (rc) { | |
2336 | cifs_dbg(VFS, "parse error in smb2_get_dfs_refer rc=%d\n", rc); | |
2337 | goto out; | |
2338 | } | |
2339 | ||
2340 | out: | |
63a83b86 AA |
2341 | if (tcon && !tcon->ipc) { |
2342 | /* ipc tcons are not refcounted */ | |
9d49640a AA |
2343 | spin_lock(&cifs_tcp_ses_lock); |
2344 | tcon->tc_count--; | |
2345 | spin_unlock(&cifs_tcp_ses_lock); | |
2346 | } | |
2347 | kfree(utf16_path); | |
2348 | kfree(dfs_req); | |
2349 | kfree(dfs_rsp); | |
2350 | return rc; | |
2351 | } | |
7893242e PS |
2352 | #define SMB2_SYMLINK_STRUCT_SIZE \ |
2353 | (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp)) | |
2354 | ||
b42bf888 PS |
2355 | static int |
2356 | smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, | |
2357 | const char *full_path, char **target_path, | |
2358 | struct cifs_sb_info *cifs_sb) | |
2359 | { | |
2360 | int rc; | |
2361 | __le16 *utf16_path; | |
2362 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2363 | struct cifs_open_parms oparms; | |
2364 | struct cifs_fid fid; | |
91cb74f5 | 2365 | struct kvec err_iov = {NULL, 0}; |
9d874c36 RS |
2366 | struct smb2_err_rsp *err_buf = NULL; |
2367 | int resp_buftype; | |
b42bf888 | 2368 | struct smb2_symlink_err_rsp *symlink; |
7893242e PS |
2369 | unsigned int sub_len; |
2370 | unsigned int sub_offset; | |
2371 | unsigned int print_len; | |
2372 | unsigned int print_offset; | |
b42bf888 PS |
2373 | |
2374 | cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); | |
2375 | ||
2376 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
2377 | if (!utf16_path) | |
2378 | return -ENOMEM; | |
2379 | ||
2380 | oparms.tcon = tcon; | |
2381 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
2382 | oparms.disposition = FILE_OPEN; | |
5e19697b SF |
2383 | if (backup_cred(cifs_sb)) |
2384 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; | |
2385 | else | |
2386 | oparms.create_options = 0; | |
b42bf888 PS |
2387 | oparms.fid = &fid; |
2388 | oparms.reconnect = false; | |
2389 | ||
9d874c36 RS |
2390 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_iov, |
2391 | &resp_buftype); | |
0d568cd3 | 2392 | if (!rc || !err_iov.iov_base) { |
9d874c36 | 2393 | rc = -ENOENT; |
ff361fda | 2394 | goto free_path; |
b42bf888 | 2395 | } |
7893242e | 2396 | |
91cb74f5 | 2397 | err_buf = err_iov.iov_base; |
7893242e | 2398 | if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) || |
1fc6ad2f | 2399 | err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE) { |
9d874c36 RS |
2400 | rc = -ENOENT; |
2401 | goto querty_exit; | |
7893242e PS |
2402 | } |
2403 | ||
b42bf888 PS |
2404 | /* open must fail on symlink - reset rc */ |
2405 | rc = 0; | |
2406 | symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData; | |
2407 | sub_len = le16_to_cpu(symlink->SubstituteNameLength); | |
2408 | sub_offset = le16_to_cpu(symlink->SubstituteNameOffset); | |
7893242e PS |
2409 | print_len = le16_to_cpu(symlink->PrintNameLength); |
2410 | print_offset = le16_to_cpu(symlink->PrintNameOffset); | |
2411 | ||
1fc6ad2f | 2412 | if (err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) { |
9d874c36 RS |
2413 | rc = -ENOENT; |
2414 | goto querty_exit; | |
7893242e PS |
2415 | } |
2416 | ||
1fc6ad2f RS |
2417 | if (err_iov.iov_len < |
2418 | SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) { | |
9d874c36 RS |
2419 | rc = -ENOENT; |
2420 | goto querty_exit; | |
7893242e PS |
2421 | } |
2422 | ||
b42bf888 PS |
2423 | *target_path = cifs_strndup_from_utf16( |
2424 | (char *)symlink->PathBuffer + sub_offset, | |
2425 | sub_len, true, cifs_sb->local_nls); | |
2426 | if (!(*target_path)) { | |
9d874c36 RS |
2427 | rc = -ENOMEM; |
2428 | goto querty_exit; | |
b42bf888 PS |
2429 | } |
2430 | convert_delimiter(*target_path, '/'); | |
2431 | cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); | |
9d874c36 RS |
2432 | |
2433 | querty_exit: | |
2434 | free_rsp_buf(resp_buftype, err_buf); | |
ff361fda | 2435 | free_path: |
b42bf888 PS |
2436 | kfree(utf16_path); |
2437 | return rc; | |
2438 | } | |
2439 | ||
84908426 | 2440 | #ifdef CONFIG_CIFS_ACL |
2f1afe25 SP |
2441 | static struct cifs_ntsd * |
2442 | get_smb2_acl_by_fid(struct cifs_sb_info *cifs_sb, | |
2443 | const struct cifs_fid *cifsfid, u32 *pacllen) | |
2444 | { | |
2445 | struct cifs_ntsd *pntsd = NULL; | |
2446 | unsigned int xid; | |
2447 | int rc = -EOPNOTSUPP; | |
2448 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
2449 | ||
2450 | if (IS_ERR(tlink)) | |
2451 | return ERR_CAST(tlink); | |
2452 | ||
2453 | xid = get_xid(); | |
2454 | cifs_dbg(FYI, "trying to get acl\n"); | |
2455 | ||
2456 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), cifsfid->persistent_fid, | |
2457 | cifsfid->volatile_fid, (void **)&pntsd, pacllen); | |
2458 | free_xid(xid); | |
2459 | ||
2460 | cifs_put_tlink(tlink); | |
2461 | ||
2462 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
2463 | if (rc) | |
2464 | return ERR_PTR(rc); | |
2465 | return pntsd; | |
2466 | ||
2467 | } | |
2468 | ||
2469 | static struct cifs_ntsd * | |
2470 | get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb, | |
2471 | const char *path, u32 *pacllen) | |
2472 | { | |
2473 | struct cifs_ntsd *pntsd = NULL; | |
2474 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2475 | unsigned int xid; | |
2476 | int rc; | |
2477 | struct cifs_tcon *tcon; | |
2478 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
2479 | struct cifs_fid fid; | |
2480 | struct cifs_open_parms oparms; | |
2481 | __le16 *utf16_path; | |
2482 | ||
2483 | cifs_dbg(FYI, "get smb3 acl for path %s\n", path); | |
2484 | if (IS_ERR(tlink)) | |
2485 | return ERR_CAST(tlink); | |
2486 | ||
2487 | tcon = tlink_tcon(tlink); | |
2488 | xid = get_xid(); | |
2489 | ||
2490 | if (backup_cred(cifs_sb)) | |
709340a0 | 2491 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; |
2f1afe25 SP |
2492 | else |
2493 | oparms.create_options = 0; | |
2494 | ||
2495 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
cfe89091 SF |
2496 | if (!utf16_path) { |
2497 | rc = -ENOMEM; | |
2498 | free_xid(xid); | |
2499 | return ERR_PTR(rc); | |
2500 | } | |
2f1afe25 SP |
2501 | |
2502 | oparms.tcon = tcon; | |
2503 | oparms.desired_access = READ_CONTROL; | |
2504 | oparms.disposition = FILE_OPEN; | |
2505 | oparms.fid = &fid; | |
2506 | oparms.reconnect = false; | |
2507 | ||
9d874c36 | 2508 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL); |
2f1afe25 SP |
2509 | kfree(utf16_path); |
2510 | if (!rc) { | |
2511 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
2512 | fid.volatile_fid, (void **)&pntsd, pacllen); | |
2513 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
2514 | } | |
2515 | ||
2516 | cifs_put_tlink(tlink); | |
2517 | free_xid(xid); | |
2518 | ||
2519 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
2520 | if (rc) | |
2521 | return ERR_PTR(rc); | |
2522 | return pntsd; | |
2523 | } | |
2524 | ||
366ed846 SP |
2525 | #ifdef CONFIG_CIFS_ACL |
2526 | static int | |
2527 | set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen, | |
2528 | struct inode *inode, const char *path, int aclflag) | |
2529 | { | |
2530 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2531 | unsigned int xid; | |
2532 | int rc, access_flags = 0; | |
2533 | struct cifs_tcon *tcon; | |
2534 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
2535 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
2536 | struct cifs_fid fid; | |
2537 | struct cifs_open_parms oparms; | |
2538 | __le16 *utf16_path; | |
2539 | ||
2540 | cifs_dbg(FYI, "set smb3 acl for path %s\n", path); | |
2541 | if (IS_ERR(tlink)) | |
2542 | return PTR_ERR(tlink); | |
2543 | ||
2544 | tcon = tlink_tcon(tlink); | |
2545 | xid = get_xid(); | |
2546 | ||
2547 | if (backup_cred(cifs_sb)) | |
2548 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; | |
2549 | else | |
2550 | oparms.create_options = 0; | |
2551 | ||
2552 | if (aclflag == CIFS_ACL_OWNER || aclflag == CIFS_ACL_GROUP) | |
2553 | access_flags = WRITE_OWNER; | |
2554 | else | |
2555 | access_flags = WRITE_DAC; | |
2556 | ||
2557 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
cfe89091 SF |
2558 | if (!utf16_path) { |
2559 | rc = -ENOMEM; | |
2560 | free_xid(xid); | |
2561 | return rc; | |
2562 | } | |
366ed846 SP |
2563 | |
2564 | oparms.tcon = tcon; | |
2565 | oparms.desired_access = access_flags; | |
2566 | oparms.disposition = FILE_OPEN; | |
2567 | oparms.path = path; | |
2568 | oparms.fid = &fid; | |
2569 | oparms.reconnect = false; | |
2570 | ||
9d874c36 | 2571 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL); |
366ed846 SP |
2572 | kfree(utf16_path); |
2573 | if (!rc) { | |
2574 | rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
2575 | fid.volatile_fid, pnntsd, acllen, aclflag); | |
2576 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
2577 | } | |
2578 | ||
2579 | cifs_put_tlink(tlink); | |
2580 | free_xid(xid); | |
2581 | return rc; | |
2582 | } | |
2583 | #endif /* CIFS_ACL */ | |
2584 | ||
2f1afe25 SP |
2585 | /* Retrieve an ACL from the server */ |
2586 | static struct cifs_ntsd * | |
2587 | get_smb2_acl(struct cifs_sb_info *cifs_sb, | |
2588 | struct inode *inode, const char *path, | |
2589 | u32 *pacllen) | |
2590 | { | |
2591 | struct cifs_ntsd *pntsd = NULL; | |
2592 | struct cifsFileInfo *open_file = NULL; | |
2593 | ||
2594 | if (inode) | |
2595 | open_file = find_readable_file(CIFS_I(inode), true); | |
2596 | if (!open_file) | |
2597 | return get_smb2_acl_by_path(cifs_sb, path, pacllen); | |
2598 | ||
2599 | pntsd = get_smb2_acl_by_fid(cifs_sb, &open_file->fid, pacllen); | |
2600 | cifsFileInfo_put(open_file); | |
2601 | return pntsd; | |
2602 | } | |
84908426 | 2603 | #endif |
2f1afe25 | 2604 | |
30175628 SF |
2605 | static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon, |
2606 | loff_t offset, loff_t len, bool keep_size) | |
2607 | { | |
72c419d9 | 2608 | struct cifs_ses *ses = tcon->ses; |
30175628 SF |
2609 | struct inode *inode; |
2610 | struct cifsInodeInfo *cifsi; | |
2611 | struct cifsFileInfo *cfile = file->private_data; | |
2612 | struct file_zero_data_information fsctl_buf; | |
72c419d9 RS |
2613 | struct smb_rqst rqst[2]; |
2614 | int resp_buftype[2]; | |
2615 | struct kvec rsp_iov[2]; | |
2616 | struct kvec io_iov[SMB2_IOCTL_IOV_SIZE]; | |
2617 | struct kvec si_iov[1]; | |
2618 | unsigned int size[1]; | |
2619 | void *data[1]; | |
30175628 SF |
2620 | long rc; |
2621 | unsigned int xid; | |
72c419d9 RS |
2622 | int num = 0, flags = 0; |
2623 | __le64 eof; | |
30175628 SF |
2624 | |
2625 | xid = get_xid(); | |
2626 | ||
2b0143b5 | 2627 | inode = d_inode(cfile->dentry); |
30175628 SF |
2628 | cifsi = CIFS_I(inode); |
2629 | ||
779ede04 SF |
2630 | trace_smb3_zero_enter(xid, cfile->fid.persistent_fid, tcon->tid, |
2631 | ses->Suid, offset, len); | |
2632 | ||
2633 | ||
30175628 SF |
2634 | /* if file not oplocked can't be sure whether asking to extend size */ |
2635 | if (!CIFS_CACHE_READ(cifsi)) | |
cfe89091 SF |
2636 | if (keep_size == false) { |
2637 | rc = -EOPNOTSUPP; | |
779ede04 SF |
2638 | trace_smb3_zero_err(xid, cfile->fid.persistent_fid, |
2639 | tcon->tid, ses->Suid, offset, len, rc); | |
cfe89091 SF |
2640 | free_xid(xid); |
2641 | return rc; | |
2642 | } | |
30175628 | 2643 | |
2bb93d24 | 2644 | /* |
30175628 SF |
2645 | * Must check if file sparse since fallocate -z (zero range) assumes |
2646 | * non-sparse allocation | |
2647 | */ | |
cfe89091 SF |
2648 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) { |
2649 | rc = -EOPNOTSUPP; | |
779ede04 SF |
2650 | trace_smb3_zero_err(xid, cfile->fid.persistent_fid, tcon->tid, |
2651 | ses->Suid, offset, len, rc); | |
cfe89091 SF |
2652 | free_xid(xid); |
2653 | return rc; | |
2654 | } | |
30175628 | 2655 | |
30175628 SF |
2656 | cifs_dbg(FYI, "offset %lld len %lld", offset, len); |
2657 | ||
2658 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
2659 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
2660 | ||
72c419d9 RS |
2661 | if (smb3_encryption_required(tcon)) |
2662 | flags |= CIFS_TRANSFORM_REQ; | |
2663 | ||
2664 | memset(rqst, 0, sizeof(rqst)); | |
2665 | resp_buftype[0] = resp_buftype[1] = CIFS_NO_BUFFER; | |
2666 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
2667 | ||
2668 | ||
2669 | memset(&io_iov, 0, sizeof(io_iov)); | |
2670 | rqst[num].rq_iov = io_iov; | |
2671 | rqst[num].rq_nvec = SMB2_IOCTL_IOV_SIZE; | |
2672 | rc = SMB2_ioctl_init(tcon, &rqst[num++], cfile->fid.persistent_fid, | |
2673 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
2674 | true /* is_fctl */, (char *)&fsctl_buf, | |
153322f7 SF |
2675 | sizeof(struct file_zero_data_information), |
2676 | CIFSMaxBufSize); | |
72c419d9 RS |
2677 | if (rc) |
2678 | goto zero_range_exit; | |
2679 | ||
2680 | /* | |
2681 | * do we also need to change the size of the file? | |
2682 | */ | |
2683 | if (keep_size == false && i_size_read(inode) < offset + len) { | |
2684 | smb2_set_next_command(tcon, &rqst[0]); | |
2685 | ||
2686 | memset(&si_iov, 0, sizeof(si_iov)); | |
2687 | rqst[num].rq_iov = si_iov; | |
2688 | rqst[num].rq_nvec = 1; | |
2689 | ||
2690 | eof = cpu_to_le64(offset + len); | |
2691 | size[0] = 8; /* sizeof __le64 */ | |
2692 | data[0] = &eof; | |
2693 | ||
2694 | rc = SMB2_set_info_init(tcon, &rqst[num++], | |
2695 | cfile->fid.persistent_fid, | |
2696 | cfile->fid.persistent_fid, | |
2697 | current->tgid, | |
2698 | FILE_END_OF_FILE_INFORMATION, | |
2699 | SMB2_O_INFO_FILE, 0, data, size); | |
2700 | smb2_set_related(&rqst[1]); | |
2701 | } | |
2702 | ||
2703 | rc = compound_send_recv(xid, ses, flags, num, rqst, | |
2704 | resp_buftype, rsp_iov); | |
2705 | ||
2706 | zero_range_exit: | |
2707 | SMB2_ioctl_free(&rqst[0]); | |
2708 | SMB2_set_info_free(&rqst[1]); | |
2709 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
2710 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
30175628 | 2711 | free_xid(xid); |
779ede04 SF |
2712 | if (rc) |
2713 | trace_smb3_zero_err(xid, cfile->fid.persistent_fid, tcon->tid, | |
2714 | ses->Suid, offset, len, rc); | |
2715 | else | |
2716 | trace_smb3_zero_done(xid, cfile->fid.persistent_fid, tcon->tid, | |
2717 | ses->Suid, offset, len); | |
30175628 SF |
2718 | return rc; |
2719 | } | |
2720 | ||
31742c5a SF |
2721 | static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon, |
2722 | loff_t offset, loff_t len) | |
2723 | { | |
2724 | struct inode *inode; | |
2725 | struct cifsInodeInfo *cifsi; | |
2726 | struct cifsFileInfo *cfile = file->private_data; | |
2727 | struct file_zero_data_information fsctl_buf; | |
2728 | long rc; | |
2729 | unsigned int xid; | |
2730 | __u8 set_sparse = 1; | |
2731 | ||
2732 | xid = get_xid(); | |
2733 | ||
2b0143b5 | 2734 | inode = d_inode(cfile->dentry); |
31742c5a SF |
2735 | cifsi = CIFS_I(inode); |
2736 | ||
2737 | /* Need to make file sparse, if not already, before freeing range. */ | |
2738 | /* Consider adding equivalent for compressed since it could also work */ | |
cfe89091 SF |
2739 | if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse)) { |
2740 | rc = -EOPNOTSUPP; | |
2741 | free_xid(xid); | |
2742 | return rc; | |
2743 | } | |
31742c5a SF |
2744 | |
2745 | cifs_dbg(FYI, "offset %lld len %lld", offset, len); | |
2746 | ||
2747 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
2748 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
2749 | ||
2750 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
2751 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
63a83b86 | 2752 | true /* is_fctl */, (char *)&fsctl_buf, |
153322f7 SF |
2753 | sizeof(struct file_zero_data_information), |
2754 | CIFSMaxBufSize, NULL, NULL); | |
31742c5a SF |
2755 | free_xid(xid); |
2756 | return rc; | |
2757 | } | |
2758 | ||
9ccf3216 SF |
2759 | static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, |
2760 | loff_t off, loff_t len, bool keep_size) | |
2761 | { | |
2762 | struct inode *inode; | |
2763 | struct cifsInodeInfo *cifsi; | |
2764 | struct cifsFileInfo *cfile = file->private_data; | |
2765 | long rc = -EOPNOTSUPP; | |
2766 | unsigned int xid; | |
f1699479 | 2767 | __le64 eof; |
9ccf3216 SF |
2768 | |
2769 | xid = get_xid(); | |
2770 | ||
2b0143b5 | 2771 | inode = d_inode(cfile->dentry); |
9ccf3216 SF |
2772 | cifsi = CIFS_I(inode); |
2773 | ||
779ede04 SF |
2774 | trace_smb3_falloc_enter(xid, cfile->fid.persistent_fid, tcon->tid, |
2775 | tcon->ses->Suid, off, len); | |
9ccf3216 SF |
2776 | /* if file not oplocked can't be sure whether asking to extend size */ |
2777 | if (!CIFS_CACHE_READ(cifsi)) | |
cfe89091 | 2778 | if (keep_size == false) { |
779ede04 SF |
2779 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, |
2780 | tcon->tid, tcon->ses->Suid, off, len, rc); | |
cfe89091 SF |
2781 | free_xid(xid); |
2782 | return rc; | |
2783 | } | |
9ccf3216 SF |
2784 | |
2785 | /* | |
2786 | * Files are non-sparse by default so falloc may be a no-op | |
2787 | * Must check if file sparse. If not sparse, and not extending | |
2788 | * then no need to do anything since file already allocated | |
2789 | */ | |
2790 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) { | |
2791 | if (keep_size == true) | |
cfe89091 | 2792 | rc = 0; |
9ccf3216 SF |
2793 | /* check if extending file */ |
2794 | else if (i_size_read(inode) >= off + len) | |
2795 | /* not extending file and already not sparse */ | |
cfe89091 | 2796 | rc = 0; |
9ccf3216 SF |
2797 | /* BB: in future add else clause to extend file */ |
2798 | else | |
cfe89091 | 2799 | rc = -EOPNOTSUPP; |
779ede04 SF |
2800 | if (rc) |
2801 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, | |
2802 | tcon->tid, tcon->ses->Suid, off, len, rc); | |
2803 | else | |
2804 | trace_smb3_falloc_done(xid, cfile->fid.persistent_fid, | |
2805 | tcon->tid, tcon->ses->Suid, off, len); | |
cfe89091 SF |
2806 | free_xid(xid); |
2807 | return rc; | |
9ccf3216 SF |
2808 | } |
2809 | ||
2810 | if ((keep_size == true) || (i_size_read(inode) >= off + len)) { | |
2811 | /* | |
2812 | * Check if falloc starts within first few pages of file | |
2813 | * and ends within a few pages of the end of file to | |
2814 | * ensure that most of file is being forced to be | |
2815 | * fallocated now. If so then setting whole file sparse | |
2816 | * ie potentially making a few extra pages at the beginning | |
2817 | * or end of the file non-sparse via set_sparse is harmless. | |
2818 | */ | |
cfe89091 SF |
2819 | if ((off > 8192) || (off + len + 8192 < i_size_read(inode))) { |
2820 | rc = -EOPNOTSUPP; | |
779ede04 SF |
2821 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, |
2822 | tcon->tid, tcon->ses->Suid, off, len, rc); | |
cfe89091 SF |
2823 | free_xid(xid); |
2824 | return rc; | |
2825 | } | |
9ccf3216 | 2826 | |
f1699479 RS |
2827 | smb2_set_sparse(xid, tcon, cfile, inode, false); |
2828 | rc = 0; | |
2829 | } else { | |
2830 | smb2_set_sparse(xid, tcon, cfile, inode, false); | |
2831 | rc = 0; | |
2832 | if (i_size_read(inode) < off + len) { | |
2833 | eof = cpu_to_le64(off + len); | |
2834 | rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, | |
2835 | cfile->fid.volatile_fid, cfile->pid, | |
2836 | &eof); | |
2837 | } | |
9ccf3216 | 2838 | } |
9ccf3216 | 2839 | |
779ede04 SF |
2840 | if (rc) |
2841 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, tcon->tid, | |
2842 | tcon->ses->Suid, off, len, rc); | |
2843 | else | |
2844 | trace_smb3_falloc_done(xid, cfile->fid.persistent_fid, tcon->tid, | |
2845 | tcon->ses->Suid, off, len); | |
9ccf3216 SF |
2846 | |
2847 | free_xid(xid); | |
2848 | return rc; | |
2849 | } | |
2850 | ||
2851 | ||
31742c5a SF |
2852 | static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode, |
2853 | loff_t off, loff_t len) | |
2854 | { | |
2855 | /* KEEP_SIZE already checked for by do_fallocate */ | |
2856 | if (mode & FALLOC_FL_PUNCH_HOLE) | |
2857 | return smb3_punch_hole(file, tcon, off, len); | |
30175628 SF |
2858 | else if (mode & FALLOC_FL_ZERO_RANGE) { |
2859 | if (mode & FALLOC_FL_KEEP_SIZE) | |
2860 | return smb3_zero_range(file, tcon, off, len, true); | |
2861 | return smb3_zero_range(file, tcon, off, len, false); | |
9ccf3216 SF |
2862 | } else if (mode == FALLOC_FL_KEEP_SIZE) |
2863 | return smb3_simple_falloc(file, tcon, off, len, true); | |
2864 | else if (mode == 0) | |
2865 | return smb3_simple_falloc(file, tcon, off, len, false); | |
31742c5a SF |
2866 | |
2867 | return -EOPNOTSUPP; | |
2868 | } | |
2869 | ||
c11f1df5 SP |
2870 | static void |
2871 | smb2_downgrade_oplock(struct TCP_Server_Info *server, | |
2872 | struct cifsInodeInfo *cinode, bool set_level2) | |
2873 | { | |
2874 | if (set_level2) | |
2875 | server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II, | |
2876 | 0, NULL); | |
2877 | else | |
2878 | server->ops->set_oplock_level(cinode, 0, 0, NULL); | |
2879 | } | |
2880 | ||
7b9b9edb PS |
2881 | static void |
2882 | smb21_downgrade_oplock(struct TCP_Server_Info *server, | |
2883 | struct cifsInodeInfo *cinode, bool set_level2) | |
2884 | { | |
2885 | server->ops->set_oplock_level(cinode, | |
2886 | set_level2 ? SMB2_LEASE_READ_CACHING_HE : | |
2887 | 0, 0, NULL); | |
2888 | } | |
2889 | ||
53ef1016 | 2890 | static void |
42873b0a PS |
2891 | smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
2892 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
2893 | { |
2894 | oplock &= 0xFF; | |
2895 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
2896 | return; | |
2897 | if (oplock == SMB2_OPLOCK_LEVEL_BATCH) { | |
42873b0a | 2898 | cinode->oplock = CIFS_CACHE_RHW_FLG; |
53ef1016 PS |
2899 | cifs_dbg(FYI, "Batch Oplock granted on inode %p\n", |
2900 | &cinode->vfs_inode); | |
2901 | } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) { | |
42873b0a | 2902 | cinode->oplock = CIFS_CACHE_RW_FLG; |
53ef1016 PS |
2903 | cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n", |
2904 | &cinode->vfs_inode); | |
2905 | } else if (oplock == SMB2_OPLOCK_LEVEL_II) { | |
2906 | cinode->oplock = CIFS_CACHE_READ_FLG; | |
2907 | cifs_dbg(FYI, "Level II Oplock granted on inode %p\n", | |
2908 | &cinode->vfs_inode); | |
2909 | } else | |
2910 | cinode->oplock = 0; | |
2911 | } | |
2912 | ||
2913 | static void | |
42873b0a PS |
2914 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
2915 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
2916 | { |
2917 | char message[5] = {0}; | |
2918 | ||
2919 | oplock &= 0xFF; | |
2920 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
2921 | return; | |
2922 | ||
2923 | cinode->oplock = 0; | |
2924 | if (oplock & SMB2_LEASE_READ_CACHING_HE) { | |
2925 | cinode->oplock |= CIFS_CACHE_READ_FLG; | |
2926 | strcat(message, "R"); | |
2927 | } | |
2928 | if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) { | |
2929 | cinode->oplock |= CIFS_CACHE_HANDLE_FLG; | |
2930 | strcat(message, "H"); | |
2931 | } | |
2932 | if (oplock & SMB2_LEASE_WRITE_CACHING_HE) { | |
2933 | cinode->oplock |= CIFS_CACHE_WRITE_FLG; | |
2934 | strcat(message, "W"); | |
2935 | } | |
2936 | if (!cinode->oplock) | |
2937 | strcat(message, "None"); | |
2938 | cifs_dbg(FYI, "%s Lease granted on inode %p\n", message, | |
2939 | &cinode->vfs_inode); | |
2940 | } | |
2941 | ||
42873b0a PS |
2942 | static void |
2943 | smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, | |
2944 | unsigned int epoch, bool *purge_cache) | |
2945 | { | |
2946 | unsigned int old_oplock = cinode->oplock; | |
2947 | ||
2948 | smb21_set_oplock_level(cinode, oplock, epoch, purge_cache); | |
2949 | ||
2950 | if (purge_cache) { | |
2951 | *purge_cache = false; | |
2952 | if (old_oplock == CIFS_CACHE_READ_FLG) { | |
2953 | if (cinode->oplock == CIFS_CACHE_READ_FLG && | |
2954 | (epoch - cinode->epoch > 0)) | |
2955 | *purge_cache = true; | |
2956 | else if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
2957 | (epoch - cinode->epoch > 1)) | |
2958 | *purge_cache = true; | |
2959 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
2960 | (epoch - cinode->epoch > 1)) | |
2961 | *purge_cache = true; | |
2962 | else if (cinode->oplock == 0 && | |
2963 | (epoch - cinode->epoch > 0)) | |
2964 | *purge_cache = true; | |
2965 | } else if (old_oplock == CIFS_CACHE_RH_FLG) { | |
2966 | if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
2967 | (epoch - cinode->epoch > 0)) | |
2968 | *purge_cache = true; | |
2969 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
2970 | (epoch - cinode->epoch > 1)) | |
2971 | *purge_cache = true; | |
2972 | } | |
2973 | cinode->epoch = epoch; | |
2974 | } | |
2975 | } | |
2976 | ||
53ef1016 PS |
2977 | static bool |
2978 | smb2_is_read_op(__u32 oplock) | |
2979 | { | |
2980 | return oplock == SMB2_OPLOCK_LEVEL_II; | |
2981 | } | |
2982 | ||
2983 | static bool | |
2984 | smb21_is_read_op(__u32 oplock) | |
2985 | { | |
2986 | return (oplock & SMB2_LEASE_READ_CACHING_HE) && | |
2987 | !(oplock & SMB2_LEASE_WRITE_CACHING_HE); | |
2988 | } | |
2989 | ||
f047390a PS |
2990 | static __le32 |
2991 | map_oplock_to_lease(u8 oplock) | |
2992 | { | |
2993 | if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
2994 | return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING; | |
2995 | else if (oplock == SMB2_OPLOCK_LEVEL_II) | |
2996 | return SMB2_LEASE_READ_CACHING; | |
2997 | else if (oplock == SMB2_OPLOCK_LEVEL_BATCH) | |
2998 | return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING | | |
2999 | SMB2_LEASE_WRITE_CACHING; | |
3000 | return 0; | |
3001 | } | |
3002 | ||
a41a28bd PS |
3003 | static char * |
3004 | smb2_create_lease_buf(u8 *lease_key, u8 oplock) | |
3005 | { | |
3006 | struct create_lease *buf; | |
3007 | ||
3008 | buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL); | |
3009 | if (!buf) | |
3010 | return NULL; | |
3011 | ||
729c0c9d | 3012 | memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE); |
f047390a | 3013 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
a41a28bd PS |
3014 | |
3015 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
3016 | (struct create_lease, lcontext)); | |
3017 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context)); | |
3018 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
3019 | (struct create_lease, Name)); | |
3020 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 3021 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
a41a28bd PS |
3022 | buf->Name[0] = 'R'; |
3023 | buf->Name[1] = 'q'; | |
3024 | buf->Name[2] = 'L'; | |
3025 | buf->Name[3] = 's'; | |
3026 | return (char *)buf; | |
3027 | } | |
3028 | ||
f047390a PS |
3029 | static char * |
3030 | smb3_create_lease_buf(u8 *lease_key, u8 oplock) | |
3031 | { | |
3032 | struct create_lease_v2 *buf; | |
3033 | ||
3034 | buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL); | |
3035 | if (!buf) | |
3036 | return NULL; | |
3037 | ||
729c0c9d | 3038 | memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE); |
f047390a PS |
3039 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
3040 | ||
3041 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
3042 | (struct create_lease_v2, lcontext)); | |
3043 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2)); | |
3044 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
3045 | (struct create_lease_v2, Name)); | |
3046 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 3047 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
f047390a PS |
3048 | buf->Name[0] = 'R'; |
3049 | buf->Name[1] = 'q'; | |
3050 | buf->Name[2] = 'L'; | |
3051 | buf->Name[3] = 's'; | |
3052 | return (char *)buf; | |
3053 | } | |
3054 | ||
b5c7cde3 | 3055 | static __u8 |
96164ab2 | 3056 | smb2_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key) |
b5c7cde3 PS |
3057 | { |
3058 | struct create_lease *lc = (struct create_lease *)buf; | |
3059 | ||
42873b0a | 3060 | *epoch = 0; /* not used */ |
b5c7cde3 PS |
3061 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
3062 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
3063 | return le32_to_cpu(lc->lcontext.LeaseState); | |
3064 | } | |
3065 | ||
f047390a | 3066 | static __u8 |
96164ab2 | 3067 | smb3_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key) |
f047390a PS |
3068 | { |
3069 | struct create_lease_v2 *lc = (struct create_lease_v2 *)buf; | |
3070 | ||
42873b0a | 3071 | *epoch = le16_to_cpu(lc->lcontext.Epoch); |
f047390a PS |
3072 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
3073 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
96164ab2 | 3074 | if (lease_key) |
729c0c9d | 3075 | memcpy(lease_key, &lc->lcontext.LeaseKey, SMB2_LEASE_KEY_SIZE); |
f047390a PS |
3076 | return le32_to_cpu(lc->lcontext.LeaseState); |
3077 | } | |
3078 | ||
7f6c5008 PS |
3079 | static unsigned int |
3080 | smb2_wp_retry_size(struct inode *inode) | |
3081 | { | |
3082 | return min_t(unsigned int, CIFS_SB(inode->i_sb)->wsize, | |
3083 | SMB2_MAX_BUFFER_SIZE); | |
3084 | } | |
3085 | ||
52755808 PS |
3086 | static bool |
3087 | smb2_dir_needs_close(struct cifsFileInfo *cfile) | |
3088 | { | |
3089 | return !cfile->invalidHandle; | |
3090 | } | |
3091 | ||
026e93dc | 3092 | static void |
977b6170 RS |
3093 | fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, unsigned int orig_len, |
3094 | struct smb_rqst *old_rq) | |
026e93dc PS |
3095 | { |
3096 | struct smb2_sync_hdr *shdr = | |
c713c877 | 3097 | (struct smb2_sync_hdr *)old_rq->rq_iov[0].iov_base; |
026e93dc PS |
3098 | |
3099 | memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr)); | |
3100 | tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; | |
3101 | tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); | |
3102 | tr_hdr->Flags = cpu_to_le16(0x01); | |
3103 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES128CMM_NONCE); | |
3104 | memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8); | |
026e93dc PS |
3105 | } |
3106 | ||
262916bc RS |
3107 | /* We can not use the normal sg_set_buf() as we will sometimes pass a |
3108 | * stack object as buf. | |
3109 | */ | |
3110 | static inline void smb2_sg_set_buf(struct scatterlist *sg, const void *buf, | |
3111 | unsigned int buflen) | |
3112 | { | |
3113 | sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); | |
3114 | } | |
3115 | ||
b2c96de7 RS |
3116 | /* Assumes the first rqst has a transform header as the first iov. |
3117 | * I.e. | |
3118 | * rqst[0].rq_iov[0] is transform header | |
3119 | * rqst[0].rq_iov[1+] data to be encrypted/decrypted | |
3120 | * rqst[1+].rq_iov[0+] data to be encrypted/decrypted | |
977b6170 | 3121 | */ |
026e93dc | 3122 | static struct scatterlist * |
b2c96de7 | 3123 | init_sg(int num_rqst, struct smb_rqst *rqst, u8 *sign) |
026e93dc | 3124 | { |
b2c96de7 | 3125 | unsigned int sg_len; |
026e93dc PS |
3126 | struct scatterlist *sg; |
3127 | unsigned int i; | |
3128 | unsigned int j; | |
b2c96de7 RS |
3129 | unsigned int idx = 0; |
3130 | int skip; | |
3131 | ||
3132 | sg_len = 1; | |
3133 | for (i = 0; i < num_rqst; i++) | |
3134 | sg_len += rqst[i].rq_nvec + rqst[i].rq_npages; | |
026e93dc PS |
3135 | |
3136 | sg = kmalloc_array(sg_len, sizeof(struct scatterlist), GFP_KERNEL); | |
3137 | if (!sg) | |
3138 | return NULL; | |
3139 | ||
3140 | sg_init_table(sg, sg_len); | |
b2c96de7 RS |
3141 | for (i = 0; i < num_rqst; i++) { |
3142 | for (j = 0; j < rqst[i].rq_nvec; j++) { | |
3143 | /* | |
3144 | * The first rqst has a transform header where the | |
3145 | * first 20 bytes are not part of the encrypted blob | |
3146 | */ | |
3147 | skip = (i == 0) && (j == 0) ? 20 : 0; | |
3148 | smb2_sg_set_buf(&sg[idx++], | |
3149 | rqst[i].rq_iov[j].iov_base + skip, | |
3150 | rqst[i].rq_iov[j].iov_len - skip); | |
e77fe73c | 3151 | } |
b2c96de7 RS |
3152 | |
3153 | for (j = 0; j < rqst[i].rq_npages; j++) { | |
3154 | unsigned int len, offset; | |
d5f07fb3 | 3155 | |
b2c96de7 RS |
3156 | rqst_page_get_length(&rqst[i], j, &len, &offset); |
3157 | sg_set_page(&sg[idx++], rqst[i].rq_pages[j], len, offset); | |
3158 | } | |
026e93dc | 3159 | } |
b2c96de7 | 3160 | smb2_sg_set_buf(&sg[idx], sign, SMB2_SIGNATURE_SIZE); |
026e93dc PS |
3161 | return sg; |
3162 | } | |
3163 | ||
61cfac6f PS |
3164 | static int |
3165 | smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) | |
3166 | { | |
3167 | struct cifs_ses *ses; | |
3168 | u8 *ses_enc_key; | |
3169 | ||
3170 | spin_lock(&cifs_tcp_ses_lock); | |
3171 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { | |
3172 | if (ses->Suid != ses_id) | |
3173 | continue; | |
3174 | ses_enc_key = enc ? ses->smb3encryptionkey : | |
3175 | ses->smb3decryptionkey; | |
3176 | memcpy(key, ses_enc_key, SMB3_SIGN_KEY_SIZE); | |
3177 | spin_unlock(&cifs_tcp_ses_lock); | |
3178 | return 0; | |
3179 | } | |
3180 | spin_unlock(&cifs_tcp_ses_lock); | |
3181 | ||
3182 | return 1; | |
3183 | } | |
026e93dc | 3184 | /* |
c713c877 RS |
3185 | * Encrypt or decrypt @rqst message. @rqst[0] has the following format: |
3186 | * iov[0] - transform header (associate data), | |
3187 | * iov[1-N] - SMB2 header and pages - data to encrypt. | |
3188 | * On success return encrypted data in iov[1-N] and pages, leave iov[0] | |
026e93dc PS |
3189 | * untouched. |
3190 | */ | |
3191 | static int | |
b2c96de7 RS |
3192 | crypt_message(struct TCP_Server_Info *server, int num_rqst, |
3193 | struct smb_rqst *rqst, int enc) | |
026e93dc PS |
3194 | { |
3195 | struct smb2_transform_hdr *tr_hdr = | |
b2c96de7 | 3196 | (struct smb2_transform_hdr *)rqst[0].rq_iov[0].iov_base; |
1fc6ad2f | 3197 | unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 20; |
026e93dc PS |
3198 | int rc = 0; |
3199 | struct scatterlist *sg; | |
3200 | u8 sign[SMB2_SIGNATURE_SIZE] = {}; | |
61cfac6f | 3201 | u8 key[SMB3_SIGN_KEY_SIZE]; |
026e93dc PS |
3202 | struct aead_request *req; |
3203 | char *iv; | |
3204 | unsigned int iv_len; | |
a5186b85 | 3205 | DECLARE_CRYPTO_WAIT(wait); |
026e93dc PS |
3206 | struct crypto_aead *tfm; |
3207 | unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
3208 | ||
61cfac6f PS |
3209 | rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key); |
3210 | if (rc) { | |
3211 | cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__, | |
3212 | enc ? "en" : "de"); | |
026e93dc PS |
3213 | return 0; |
3214 | } | |
3215 | ||
3216 | rc = smb3_crypto_aead_allocate(server); | |
3217 | if (rc) { | |
3218 | cifs_dbg(VFS, "%s: crypto alloc failed\n", __func__); | |
3219 | return rc; | |
3220 | } | |
3221 | ||
3222 | tfm = enc ? server->secmech.ccmaesencrypt : | |
3223 | server->secmech.ccmaesdecrypt; | |
61cfac6f | 3224 | rc = crypto_aead_setkey(tfm, key, SMB3_SIGN_KEY_SIZE); |
026e93dc PS |
3225 | if (rc) { |
3226 | cifs_dbg(VFS, "%s: Failed to set aead key %d\n", __func__, rc); | |
3227 | return rc; | |
3228 | } | |
3229 | ||
3230 | rc = crypto_aead_setauthsize(tfm, SMB2_SIGNATURE_SIZE); | |
3231 | if (rc) { | |
3232 | cifs_dbg(VFS, "%s: Failed to set authsize %d\n", __func__, rc); | |
3233 | return rc; | |
3234 | } | |
3235 | ||
3236 | req = aead_request_alloc(tfm, GFP_KERNEL); | |
3237 | if (!req) { | |
3238 | cifs_dbg(VFS, "%s: Failed to alloc aead request", __func__); | |
3239 | return -ENOMEM; | |
3240 | } | |
3241 | ||
3242 | if (!enc) { | |
3243 | memcpy(sign, &tr_hdr->Signature, SMB2_SIGNATURE_SIZE); | |
3244 | crypt_len += SMB2_SIGNATURE_SIZE; | |
3245 | } | |
3246 | ||
b2c96de7 | 3247 | sg = init_sg(num_rqst, rqst, sign); |
026e93dc | 3248 | if (!sg) { |
517a6e43 CJ |
3249 | cifs_dbg(VFS, "%s: Failed to init sg", __func__); |
3250 | rc = -ENOMEM; | |
026e93dc PS |
3251 | goto free_req; |
3252 | } | |
3253 | ||
3254 | iv_len = crypto_aead_ivsize(tfm); | |
3255 | iv = kzalloc(iv_len, GFP_KERNEL); | |
3256 | if (!iv) { | |
3257 | cifs_dbg(VFS, "%s: Failed to alloc IV", __func__); | |
517a6e43 | 3258 | rc = -ENOMEM; |
026e93dc PS |
3259 | goto free_sg; |
3260 | } | |
3261 | iv[0] = 3; | |
3262 | memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES128CMM_NONCE); | |
3263 | ||
3264 | aead_request_set_crypt(req, sg, sg, crypt_len, iv); | |
3265 | aead_request_set_ad(req, assoc_data_len); | |
3266 | ||
3267 | aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, | |
a5186b85 | 3268 | crypto_req_done, &wait); |
026e93dc | 3269 | |
a5186b85 GBY |
3270 | rc = crypto_wait_req(enc ? crypto_aead_encrypt(req) |
3271 | : crypto_aead_decrypt(req), &wait); | |
026e93dc PS |
3272 | |
3273 | if (!rc && enc) | |
3274 | memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE); | |
3275 | ||
3276 | kfree(iv); | |
3277 | free_sg: | |
3278 | kfree(sg); | |
3279 | free_req: | |
3280 | kfree(req); | |
3281 | return rc; | |
3282 | } | |
3283 | ||
b2c96de7 RS |
3284 | void |
3285 | smb3_free_compound_rqst(int num_rqst, struct smb_rqst *rqst) | |
3286 | { | |
3287 | int i, j; | |
3288 | ||
3289 | for (i = 0; i < num_rqst; i++) { | |
3290 | if (rqst[i].rq_pages) { | |
3291 | for (j = rqst[i].rq_npages - 1; j >= 0; j--) | |
3292 | put_page(rqst[i].rq_pages[j]); | |
3293 | kfree(rqst[i].rq_pages); | |
3294 | } | |
3295 | } | |
3296 | } | |
3297 | ||
3298 | /* | |
3299 | * This function will initialize new_rq and encrypt the content. | |
3300 | * The first entry, new_rq[0], only contains a single iov which contains | |
3301 | * a smb2_transform_hdr and is pre-allocated by the caller. | |
3302 | * This function then populates new_rq[1+] with the content from olq_rq[0+]. | |
3303 | * | |
3304 | * The end result is an array of smb_rqst structures where the first structure | |
3305 | * only contains a single iov for the transform header which we then can pass | |
3306 | * to crypt_message(). | |
3307 | * | |
3308 | * new_rq[0].rq_iov[0] : smb2_transform_hdr pre-allocated by the caller | |
3309 | * new_rq[1+].rq_iov[*] == old_rq[0+].rq_iov[*] : SMB2/3 requests | |
3310 | */ | |
026e93dc | 3311 | static int |
b2c96de7 RS |
3312 | smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst, |
3313 | struct smb_rqst *new_rq, struct smb_rqst *old_rq) | |
026e93dc | 3314 | { |
026e93dc | 3315 | struct page **pages; |
b2c96de7 RS |
3316 | struct smb2_transform_hdr *tr_hdr = new_rq[0].rq_iov[0].iov_base; |
3317 | unsigned int npages; | |
3318 | unsigned int orig_len = 0; | |
3319 | int i, j; | |
026e93dc PS |
3320 | int rc = -ENOMEM; |
3321 | ||
b2c96de7 RS |
3322 | for (i = 1; i < num_rqst; i++) { |
3323 | npages = old_rq[i - 1].rq_npages; | |
3324 | pages = kmalloc_array(npages, sizeof(struct page *), | |
3325 | GFP_KERNEL); | |
3326 | if (!pages) | |
3327 | goto err_free; | |
3328 | ||
3329 | new_rq[i].rq_pages = pages; | |
3330 | new_rq[i].rq_npages = npages; | |
3331 | new_rq[i].rq_offset = old_rq[i - 1].rq_offset; | |
3332 | new_rq[i].rq_pagesz = old_rq[i - 1].rq_pagesz; | |
3333 | new_rq[i].rq_tailsz = old_rq[i - 1].rq_tailsz; | |
3334 | new_rq[i].rq_iov = old_rq[i - 1].rq_iov; | |
3335 | new_rq[i].rq_nvec = old_rq[i - 1].rq_nvec; | |
3336 | ||
3337 | orig_len += smb_rqst_len(server, &old_rq[i - 1]); | |
3338 | ||
3339 | for (j = 0; j < npages; j++) { | |
3340 | pages[j] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
3341 | if (!pages[j]) | |
3342 | goto err_free; | |
3343 | } | |
026e93dc | 3344 | |
b2c96de7 RS |
3345 | /* copy pages form the old */ |
3346 | for (j = 0; j < npages; j++) { | |
3347 | char *dst, *src; | |
3348 | unsigned int offset, len; | |
977b6170 | 3349 | |
b2c96de7 | 3350 | rqst_page_get_length(&new_rq[i], j, &len, &offset); |
026e93dc | 3351 | |
b2c96de7 RS |
3352 | dst = (char *) kmap(new_rq[i].rq_pages[j]) + offset; |
3353 | src = (char *) kmap(old_rq[i - 1].rq_pages[j]) + offset; | |
026e93dc | 3354 | |
b2c96de7 RS |
3355 | memcpy(dst, src, len); |
3356 | kunmap(new_rq[i].rq_pages[j]); | |
3357 | kunmap(old_rq[i - 1].rq_pages[j]); | |
3358 | } | |
3359 | } | |
35e2cc1b | 3360 | |
b2c96de7 | 3361 | /* fill the 1st iov with a transform header */ |
977b6170 | 3362 | fill_transform_hdr(tr_hdr, orig_len, old_rq); |
d5f07fb3 | 3363 | |
b2c96de7 | 3364 | rc = crypt_message(server, num_rqst, new_rq, 1); |
026e93dc PS |
3365 | cifs_dbg(FYI, "encrypt message returned %d", rc); |
3366 | if (rc) | |
b2c96de7 | 3367 | goto err_free; |
026e93dc PS |
3368 | |
3369 | return rc; | |
3370 | ||
b2c96de7 RS |
3371 | err_free: |
3372 | smb3_free_compound_rqst(num_rqst - 1, &new_rq[1]); | |
026e93dc PS |
3373 | return rc; |
3374 | } | |
3375 | ||
4326ed2f PS |
3376 | static int |
3377 | smb3_is_transform_hdr(void *buf) | |
3378 | { | |
3379 | struct smb2_transform_hdr *trhdr = buf; | |
3380 | ||
3381 | return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM; | |
3382 | } | |
3383 | ||
3384 | static int | |
3385 | decrypt_raw_data(struct TCP_Server_Info *server, char *buf, | |
3386 | unsigned int buf_data_size, struct page **pages, | |
3387 | unsigned int npages, unsigned int page_data_size) | |
3388 | { | |
c713c877 | 3389 | struct kvec iov[2]; |
4326ed2f | 3390 | struct smb_rqst rqst = {NULL}; |
4326ed2f PS |
3391 | int rc; |
3392 | ||
c713c877 RS |
3393 | iov[0].iov_base = buf; |
3394 | iov[0].iov_len = sizeof(struct smb2_transform_hdr); | |
3395 | iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr); | |
3396 | iov[1].iov_len = buf_data_size; | |
4326ed2f PS |
3397 | |
3398 | rqst.rq_iov = iov; | |
c713c877 | 3399 | rqst.rq_nvec = 2; |
4326ed2f PS |
3400 | rqst.rq_pages = pages; |
3401 | rqst.rq_npages = npages; | |
3402 | rqst.rq_pagesz = PAGE_SIZE; | |
3403 | rqst.rq_tailsz = (page_data_size % PAGE_SIZE) ? : PAGE_SIZE; | |
3404 | ||
b2c96de7 | 3405 | rc = crypt_message(server, 1, &rqst, 0); |
4326ed2f PS |
3406 | cifs_dbg(FYI, "decrypt message returned %d\n", rc); |
3407 | ||
3408 | if (rc) | |
3409 | return rc; | |
3410 | ||
c713c877 | 3411 | memmove(buf, iov[1].iov_base, buf_data_size); |
977b6170 RS |
3412 | |
3413 | server->total_read = buf_data_size + page_data_size; | |
4326ed2f PS |
3414 | |
3415 | return rc; | |
3416 | } | |
3417 | ||
c42a6abe PS |
3418 | static int |
3419 | read_data_into_pages(struct TCP_Server_Info *server, struct page **pages, | |
3420 | unsigned int npages, unsigned int len) | |
3421 | { | |
3422 | int i; | |
3423 | int length; | |
3424 | ||
3425 | for (i = 0; i < npages; i++) { | |
3426 | struct page *page = pages[i]; | |
3427 | size_t n; | |
3428 | ||
3429 | n = len; | |
3430 | if (len >= PAGE_SIZE) { | |
3431 | /* enough data to fill the page */ | |
3432 | n = PAGE_SIZE; | |
3433 | len -= n; | |
3434 | } else { | |
3435 | zero_user(page, len, PAGE_SIZE - len); | |
3436 | len = 0; | |
3437 | } | |
1dbe3466 | 3438 | length = cifs_read_page_from_socket(server, page, 0, n); |
c42a6abe PS |
3439 | if (length < 0) |
3440 | return length; | |
3441 | server->total_read += length; | |
3442 | } | |
3443 | ||
3444 | return 0; | |
3445 | } | |
3446 | ||
3447 | static int | |
3448 | init_read_bvec(struct page **pages, unsigned int npages, unsigned int data_size, | |
3449 | unsigned int cur_off, struct bio_vec **page_vec) | |
3450 | { | |
3451 | struct bio_vec *bvec; | |
3452 | int i; | |
3453 | ||
3454 | bvec = kcalloc(npages, sizeof(struct bio_vec), GFP_KERNEL); | |
3455 | if (!bvec) | |
3456 | return -ENOMEM; | |
3457 | ||
3458 | for (i = 0; i < npages; i++) { | |
3459 | bvec[i].bv_page = pages[i]; | |
3460 | bvec[i].bv_offset = (i == 0) ? cur_off : 0; | |
3461 | bvec[i].bv_len = min_t(unsigned int, PAGE_SIZE, data_size); | |
3462 | data_size -= bvec[i].bv_len; | |
3463 | } | |
3464 | ||
3465 | if (data_size != 0) { | |
3466 | cifs_dbg(VFS, "%s: something went wrong\n", __func__); | |
3467 | kfree(bvec); | |
3468 | return -EIO; | |
3469 | } | |
3470 | ||
3471 | *page_vec = bvec; | |
3472 | return 0; | |
3473 | } | |
3474 | ||
4326ed2f PS |
3475 | static int |
3476 | handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, | |
3477 | char *buf, unsigned int buf_len, struct page **pages, | |
3478 | unsigned int npages, unsigned int page_data_size) | |
3479 | { | |
3480 | unsigned int data_offset; | |
3481 | unsigned int data_len; | |
c42a6abe PS |
3482 | unsigned int cur_off; |
3483 | unsigned int cur_page_idx; | |
3484 | unsigned int pad_len; | |
4326ed2f | 3485 | struct cifs_readdata *rdata = mid->callback_data; |
49f466bd | 3486 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
4326ed2f PS |
3487 | struct bio_vec *bvec = NULL; |
3488 | struct iov_iter iter; | |
3489 | struct kvec iov; | |
3490 | int length; | |
74dcf418 | 3491 | bool use_rdma_mr = false; |
4326ed2f PS |
3492 | |
3493 | if (shdr->Command != SMB2_READ) { | |
3494 | cifs_dbg(VFS, "only big read responses are supported\n"); | |
3495 | return -ENOTSUPP; | |
3496 | } | |
3497 | ||
511c54a2 PS |
3498 | if (server->ops->is_session_expired && |
3499 | server->ops->is_session_expired(buf)) { | |
3500 | cifs_reconnect(server); | |
3501 | wake_up(&server->response_q); | |
3502 | return -1; | |
3503 | } | |
3504 | ||
4326ed2f | 3505 | if (server->ops->is_status_pending && |
66265f13 | 3506 | server->ops->is_status_pending(buf, server)) |
4326ed2f PS |
3507 | return -1; |
3508 | ||
ec678eae PS |
3509 | /* set up first two iov to get credits */ |
3510 | rdata->iov[0].iov_base = buf; | |
bb1bccb6 PS |
3511 | rdata->iov[0].iov_len = 0; |
3512 | rdata->iov[1].iov_base = buf; | |
ec678eae | 3513 | rdata->iov[1].iov_len = |
bb1bccb6 | 3514 | min_t(unsigned int, buf_len, server->vals->read_rsp_size); |
ec678eae PS |
3515 | cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", |
3516 | rdata->iov[0].iov_base, rdata->iov[0].iov_len); | |
3517 | cifs_dbg(FYI, "1: iov_base=%p iov_len=%zu\n", | |
3518 | rdata->iov[1].iov_base, rdata->iov[1].iov_len); | |
3519 | ||
3520 | rdata->result = server->ops->map_error(buf, true); | |
4326ed2f PS |
3521 | if (rdata->result != 0) { |
3522 | cifs_dbg(FYI, "%s: server returned error %d\n", | |
3523 | __func__, rdata->result); | |
ec678eae PS |
3524 | /* normal error on read response */ |
3525 | dequeue_mid(mid, false); | |
4326ed2f PS |
3526 | return 0; |
3527 | } | |
3528 | ||
1fc6ad2f | 3529 | data_offset = server->ops->read_data_offset(buf); |
74dcf418 LL |
3530 | #ifdef CONFIG_CIFS_SMB_DIRECT |
3531 | use_rdma_mr = rdata->mr; | |
3532 | #endif | |
3533 | data_len = server->ops->read_data_length(buf, use_rdma_mr); | |
4326ed2f PS |
3534 | |
3535 | if (data_offset < server->vals->read_rsp_size) { | |
3536 | /* | |
3537 | * win2k8 sometimes sends an offset of 0 when the read | |
3538 | * is beyond the EOF. Treat it as if the data starts just after | |
3539 | * the header. | |
3540 | */ | |
3541 | cifs_dbg(FYI, "%s: data offset (%u) inside read response header\n", | |
3542 | __func__, data_offset); | |
3543 | data_offset = server->vals->read_rsp_size; | |
3544 | } else if (data_offset > MAX_CIFS_SMALL_BUFFER_SIZE) { | |
3545 | /* data_offset is beyond the end of smallbuf */ | |
3546 | cifs_dbg(FYI, "%s: data offset (%u) beyond end of smallbuf\n", | |
3547 | __func__, data_offset); | |
3548 | rdata->result = -EIO; | |
3549 | dequeue_mid(mid, rdata->result); | |
3550 | return 0; | |
3551 | } | |
3552 | ||
c42a6abe PS |
3553 | pad_len = data_offset - server->vals->read_rsp_size; |
3554 | ||
4326ed2f PS |
3555 | if (buf_len <= data_offset) { |
3556 | /* read response payload is in pages */ | |
c42a6abe PS |
3557 | cur_page_idx = pad_len / PAGE_SIZE; |
3558 | cur_off = pad_len % PAGE_SIZE; | |
3559 | ||
3560 | if (cur_page_idx != 0) { | |
3561 | /* data offset is beyond the 1st page of response */ | |
3562 | cifs_dbg(FYI, "%s: data offset (%u) beyond 1st page of response\n", | |
3563 | __func__, data_offset); | |
3564 | rdata->result = -EIO; | |
3565 | dequeue_mid(mid, rdata->result); | |
3566 | return 0; | |
3567 | } | |
3568 | ||
3569 | if (data_len > page_data_size - pad_len) { | |
3570 | /* data_len is corrupt -- discard frame */ | |
3571 | rdata->result = -EIO; | |
3572 | dequeue_mid(mid, rdata->result); | |
3573 | return 0; | |
3574 | } | |
3575 | ||
3576 | rdata->result = init_read_bvec(pages, npages, page_data_size, | |
3577 | cur_off, &bvec); | |
3578 | if (rdata->result != 0) { | |
3579 | dequeue_mid(mid, rdata->result); | |
3580 | return 0; | |
3581 | } | |
3582 | ||
aa563d7b | 3583 | iov_iter_bvec(&iter, WRITE, bvec, npages, data_len); |
4326ed2f PS |
3584 | } else if (buf_len >= data_offset + data_len) { |
3585 | /* read response payload is in buf */ | |
3586 | WARN_ONCE(npages > 0, "read data can be either in buf or in pages"); | |
3587 | iov.iov_base = buf + data_offset; | |
3588 | iov.iov_len = data_len; | |
aa563d7b | 3589 | iov_iter_kvec(&iter, WRITE, &iov, 1, data_len); |
4326ed2f PS |
3590 | } else { |
3591 | /* read response payload cannot be in both buf and pages */ | |
3592 | WARN_ONCE(1, "buf can not contain only a part of read data"); | |
3593 | rdata->result = -EIO; | |
3594 | dequeue_mid(mid, rdata->result); | |
3595 | return 0; | |
3596 | } | |
3597 | ||
4326ed2f PS |
3598 | length = rdata->copy_into_pages(server, rdata, &iter); |
3599 | ||
3600 | kfree(bvec); | |
3601 | ||
3602 | if (length < 0) | |
3603 | return length; | |
3604 | ||
3605 | dequeue_mid(mid, false); | |
3606 | return length; | |
3607 | } | |
3608 | ||
c42a6abe PS |
3609 | static int |
3610 | receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid) | |
3611 | { | |
3612 | char *buf = server->smallbuf; | |
3613 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; | |
3614 | unsigned int npages; | |
3615 | struct page **pages; | |
3616 | unsigned int len; | |
1fc6ad2f | 3617 | unsigned int buflen = server->pdu_size; |
c42a6abe PS |
3618 | int rc; |
3619 | int i = 0; | |
3620 | ||
1fc6ad2f | 3621 | len = min_t(unsigned int, buflen, server->vals->read_rsp_size + |
c42a6abe PS |
3622 | sizeof(struct smb2_transform_hdr)) - HEADER_SIZE(server) + 1; |
3623 | ||
3624 | rc = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, len); | |
3625 | if (rc < 0) | |
3626 | return rc; | |
3627 | server->total_read += rc; | |
3628 | ||
1fc6ad2f | 3629 | len = le32_to_cpu(tr_hdr->OriginalMessageSize) - |
93012bf9 | 3630 | server->vals->read_rsp_size; |
c42a6abe PS |
3631 | npages = DIV_ROUND_UP(len, PAGE_SIZE); |
3632 | ||
3633 | pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); | |
3634 | if (!pages) { | |
3635 | rc = -ENOMEM; | |
3636 | goto discard_data; | |
3637 | } | |
3638 | ||
3639 | for (; i < npages; i++) { | |
3640 | pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
3641 | if (!pages[i]) { | |
3642 | rc = -ENOMEM; | |
3643 | goto discard_data; | |
3644 | } | |
3645 | } | |
3646 | ||
3647 | /* read read data into pages */ | |
3648 | rc = read_data_into_pages(server, pages, npages, len); | |
3649 | if (rc) | |
3650 | goto free_pages; | |
3651 | ||
350be257 | 3652 | rc = cifs_discard_remaining_data(server); |
c42a6abe PS |
3653 | if (rc) |
3654 | goto free_pages; | |
3655 | ||
1fc6ad2f | 3656 | rc = decrypt_raw_data(server, buf, server->vals->read_rsp_size, |
c42a6abe PS |
3657 | pages, npages, len); |
3658 | if (rc) | |
3659 | goto free_pages; | |
3660 | ||
3661 | *mid = smb2_find_mid(server, buf); | |
3662 | if (*mid == NULL) | |
3663 | cifs_dbg(FYI, "mid not found\n"); | |
3664 | else { | |
3665 | cifs_dbg(FYI, "mid found\n"); | |
3666 | (*mid)->decrypted = true; | |
3667 | rc = handle_read_data(server, *mid, buf, | |
3668 | server->vals->read_rsp_size, | |
3669 | pages, npages, len); | |
3670 | } | |
3671 | ||
3672 | free_pages: | |
3673 | for (i = i - 1; i >= 0; i--) | |
3674 | put_page(pages[i]); | |
3675 | kfree(pages); | |
3676 | return rc; | |
3677 | discard_data: | |
350be257 | 3678 | cifs_discard_remaining_data(server); |
c42a6abe PS |
3679 | goto free_pages; |
3680 | } | |
3681 | ||
4326ed2f PS |
3682 | static int |
3683 | receive_encrypted_standard(struct TCP_Server_Info *server, | |
b24df3e3 RS |
3684 | struct mid_q_entry **mids, char **bufs, |
3685 | int *num_mids) | |
4326ed2f | 3686 | { |
b24df3e3 | 3687 | int ret, length; |
4326ed2f | 3688 | char *buf = server->smallbuf; |
b24df3e3 RS |
3689 | char *tmpbuf; |
3690 | struct smb2_sync_hdr *shdr; | |
2e96467d | 3691 | unsigned int pdu_length = server->pdu_size; |
4326ed2f PS |
3692 | unsigned int buf_size; |
3693 | struct mid_q_entry *mid_entry; | |
b24df3e3 RS |
3694 | int next_is_large; |
3695 | char *next_buffer = NULL; | |
3696 | ||
3697 | *num_mids = 0; | |
4326ed2f PS |
3698 | |
3699 | /* switch to large buffer if too big for a small one */ | |
1fc6ad2f | 3700 | if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE) { |
4326ed2f PS |
3701 | server->large_buf = true; |
3702 | memcpy(server->bigbuf, buf, server->total_read); | |
3703 | buf = server->bigbuf; | |
3704 | } | |
3705 | ||
3706 | /* now read the rest */ | |
3707 | length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, | |
1fc6ad2f | 3708 | pdu_length - HEADER_SIZE(server) + 1); |
4326ed2f PS |
3709 | if (length < 0) |
3710 | return length; | |
3711 | server->total_read += length; | |
3712 | ||
1fc6ad2f | 3713 | buf_size = pdu_length - sizeof(struct smb2_transform_hdr); |
4326ed2f PS |
3714 | length = decrypt_raw_data(server, buf, buf_size, NULL, 0, 0); |
3715 | if (length) | |
3716 | return length; | |
3717 | ||
b24df3e3 RS |
3718 | next_is_large = server->large_buf; |
3719 | one_more: | |
3720 | shdr = (struct smb2_sync_hdr *)buf; | |
3721 | if (shdr->NextCommand) { | |
3722 | if (next_is_large) { | |
3723 | tmpbuf = server->bigbuf; | |
3724 | next_buffer = (char *)cifs_buf_get(); | |
3725 | } else { | |
3726 | tmpbuf = server->smallbuf; | |
3727 | next_buffer = (char *)cifs_small_buf_get(); | |
3728 | } | |
3729 | memcpy(next_buffer, | |
3730 | tmpbuf + le32_to_cpu(shdr->NextCommand), | |
3731 | pdu_length - le32_to_cpu(shdr->NextCommand)); | |
3732 | } | |
3733 | ||
4326ed2f PS |
3734 | mid_entry = smb2_find_mid(server, buf); |
3735 | if (mid_entry == NULL) | |
3736 | cifs_dbg(FYI, "mid not found\n"); | |
3737 | else { | |
3738 | cifs_dbg(FYI, "mid found\n"); | |
3739 | mid_entry->decrypted = true; | |
b24df3e3 | 3740 | mid_entry->resp_buf_size = server->pdu_size; |
4326ed2f PS |
3741 | } |
3742 | ||
b24df3e3 RS |
3743 | if (*num_mids >= MAX_COMPOUND) { |
3744 | cifs_dbg(VFS, "too many PDUs in compound\n"); | |
3745 | return -1; | |
3746 | } | |
3747 | bufs[*num_mids] = buf; | |
3748 | mids[(*num_mids)++] = mid_entry; | |
4326ed2f PS |
3749 | |
3750 | if (mid_entry && mid_entry->handle) | |
b24df3e3 RS |
3751 | ret = mid_entry->handle(server, mid_entry); |
3752 | else | |
3753 | ret = cifs_handle_standard(server, mid_entry); | |
3754 | ||
3755 | if (ret == 0 && shdr->NextCommand) { | |
3756 | pdu_length -= le32_to_cpu(shdr->NextCommand); | |
3757 | server->large_buf = next_is_large; | |
3758 | if (next_is_large) | |
3759 | server->bigbuf = next_buffer; | |
3760 | else | |
3761 | server->smallbuf = next_buffer; | |
3762 | ||
3763 | buf += le32_to_cpu(shdr->NextCommand); | |
3764 | goto one_more; | |
3765 | } | |
4326ed2f | 3766 | |
b24df3e3 | 3767 | return ret; |
4326ed2f PS |
3768 | } |
3769 | ||
3770 | static int | |
b24df3e3 RS |
3771 | smb3_receive_transform(struct TCP_Server_Info *server, |
3772 | struct mid_q_entry **mids, char **bufs, int *num_mids) | |
4326ed2f PS |
3773 | { |
3774 | char *buf = server->smallbuf; | |
2e96467d | 3775 | unsigned int pdu_length = server->pdu_size; |
4326ed2f PS |
3776 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; |
3777 | unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
3778 | ||
1fc6ad2f | 3779 | if (pdu_length < sizeof(struct smb2_transform_hdr) + |
4326ed2f PS |
3780 | sizeof(struct smb2_sync_hdr)) { |
3781 | cifs_dbg(VFS, "Transform message is too small (%u)\n", | |
3782 | pdu_length); | |
3783 | cifs_reconnect(server); | |
3784 | wake_up(&server->response_q); | |
3785 | return -ECONNABORTED; | |
3786 | } | |
3787 | ||
1fc6ad2f | 3788 | if (pdu_length < orig_len + sizeof(struct smb2_transform_hdr)) { |
4326ed2f PS |
3789 | cifs_dbg(VFS, "Transform message is broken\n"); |
3790 | cifs_reconnect(server); | |
3791 | wake_up(&server->response_q); | |
3792 | return -ECONNABORTED; | |
3793 | } | |
3794 | ||
b24df3e3 | 3795 | /* TODO: add support for compounds containing READ. */ |
6d2f84ee PA |
3796 | if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server)) { |
3797 | *num_mids = 1; | |
b24df3e3 | 3798 | return receive_encrypted_read(server, &mids[0]); |
6d2f84ee | 3799 | } |
4326ed2f | 3800 | |
b24df3e3 | 3801 | return receive_encrypted_standard(server, mids, bufs, num_mids); |
4326ed2f PS |
3802 | } |
3803 | ||
3804 | int | |
3805 | smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid) | |
3806 | { | |
3807 | char *buf = server->large_buf ? server->bigbuf : server->smallbuf; | |
3808 | ||
1fc6ad2f | 3809 | return handle_read_data(server, mid, buf, server->pdu_size, |
4326ed2f PS |
3810 | NULL, 0, 0); |
3811 | } | |
3812 | ||
8ce79ec3 RS |
3813 | static int |
3814 | smb2_next_header(char *buf) | |
3815 | { | |
3816 | struct smb2_sync_hdr *hdr = (struct smb2_sync_hdr *)buf; | |
3817 | struct smb2_transform_hdr *t_hdr = (struct smb2_transform_hdr *)buf; | |
3818 | ||
3819 | if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) | |
3820 | return sizeof(struct smb2_transform_hdr) + | |
3821 | le32_to_cpu(t_hdr->OriginalMessageSize); | |
3822 | ||
3823 | return le32_to_cpu(hdr->NextCommand); | |
3824 | } | |
3825 | ||
c847dccf AA |
3826 | static int |
3827 | smb2_make_node(unsigned int xid, struct inode *inode, | |
3828 | struct dentry *dentry, struct cifs_tcon *tcon, | |
3829 | char *full_path, umode_t mode, dev_t dev) | |
3830 | { | |
3831 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
3832 | int rc = -EPERM; | |
3833 | int create_options = CREATE_NOT_DIR | CREATE_OPTION_SPECIAL; | |
3834 | FILE_ALL_INFO *buf = NULL; | |
3835 | struct cifs_io_parms io_parms; | |
3836 | __u32 oplock = 0; | |
3837 | struct cifs_fid fid; | |
3838 | struct cifs_open_parms oparms; | |
3839 | unsigned int bytes_written; | |
3840 | struct win_dev *pdev; | |
3841 | struct kvec iov[2]; | |
3842 | ||
3843 | /* | |
3844 | * Check if mounted with mount parm 'sfu' mount parm. | |
3845 | * SFU emulation should work with all servers, but only | |
3846 | * supports block and char device (no socket & fifo), | |
3847 | * and was used by default in earlier versions of Windows | |
3848 | */ | |
3849 | if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) | |
3850 | goto out; | |
3851 | ||
3852 | /* | |
3853 | * TODO: Add ability to create instead via reparse point. Windows (e.g. | |
3854 | * their current NFS server) uses this approach to expose special files | |
3855 | * over SMB2/SMB3 and Samba will do this with SMB3.1.1 POSIX Extensions | |
3856 | */ | |
3857 | ||
3858 | if (!S_ISCHR(mode) && !S_ISBLK(mode)) | |
3859 | goto out; | |
3860 | ||
3861 | cifs_dbg(FYI, "sfu compat create special file\n"); | |
3862 | ||
3863 | buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); | |
3864 | if (buf == NULL) { | |
3865 | rc = -ENOMEM; | |
3866 | goto out; | |
3867 | } | |
3868 | ||
3869 | if (backup_cred(cifs_sb)) | |
3870 | create_options |= CREATE_OPEN_BACKUP_INTENT; | |
3871 | ||
3872 | oparms.tcon = tcon; | |
3873 | oparms.cifs_sb = cifs_sb; | |
3874 | oparms.desired_access = GENERIC_WRITE; | |
3875 | oparms.create_options = create_options; | |
3876 | oparms.disposition = FILE_CREATE; | |
3877 | oparms.path = full_path; | |
3878 | oparms.fid = &fid; | |
3879 | oparms.reconnect = false; | |
3880 | ||
3881 | if (tcon->ses->server->oplocks) | |
3882 | oplock = REQ_OPLOCK; | |
3883 | else | |
3884 | oplock = 0; | |
3885 | rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, buf); | |
3886 | if (rc) | |
3887 | goto out; | |
3888 | ||
3889 | /* | |
3890 | * BB Do not bother to decode buf since no local inode yet to put | |
3891 | * timestamps in, but we can reuse it safely. | |
3892 | */ | |
3893 | ||
3894 | pdev = (struct win_dev *)buf; | |
3895 | io_parms.pid = current->tgid; | |
3896 | io_parms.tcon = tcon; | |
3897 | io_parms.offset = 0; | |
3898 | io_parms.length = sizeof(struct win_dev); | |
3899 | iov[1].iov_base = buf; | |
3900 | iov[1].iov_len = sizeof(struct win_dev); | |
3901 | if (S_ISCHR(mode)) { | |
3902 | memcpy(pdev->type, "IntxCHR", 8); | |
3903 | pdev->major = cpu_to_le64(MAJOR(dev)); | |
3904 | pdev->minor = cpu_to_le64(MINOR(dev)); | |
3905 | rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms, | |
3906 | &bytes_written, iov, 1); | |
3907 | } else if (S_ISBLK(mode)) { | |
3908 | memcpy(pdev->type, "IntxBLK", 8); | |
3909 | pdev->major = cpu_to_le64(MAJOR(dev)); | |
3910 | pdev->minor = cpu_to_le64(MINOR(dev)); | |
3911 | rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms, | |
3912 | &bytes_written, iov, 1); | |
3913 | } | |
3914 | tcon->ses->server->ops->close(xid, tcon, &fid); | |
3915 | d_drop(dentry); | |
3916 | ||
3917 | /* FIXME: add code here to set EAs */ | |
3918 | out: | |
3919 | kfree(buf); | |
3920 | return rc; | |
3921 | } | |
3922 | ||
3923 | ||
53ef1016 | 3924 | struct smb_version_operations smb20_operations = { |
027e8eec | 3925 | .compare_fids = smb2_compare_fids, |
2dc7e1c0 | 3926 | .setup_request = smb2_setup_request, |
c95b8eed | 3927 | .setup_async_request = smb2_setup_async_request, |
2dc7e1c0 | 3928 | .check_receive = smb2_check_receive, |
28ea5290 PS |
3929 | .add_credits = smb2_add_credits, |
3930 | .set_credits = smb2_set_credits, | |
3931 | .get_credits_field = smb2_get_credits_field, | |
3932 | .get_credits = smb2_get_credits, | |
cb7e9eab | 3933 | .wait_mtu_credits = cifs_wait_mtu_credits, |
2dc7e1c0 | 3934 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 3935 | .revert_current_mid = smb2_revert_current_mid, |
09a4707e PS |
3936 | .read_data_offset = smb2_read_data_offset, |
3937 | .read_data_length = smb2_read_data_length, | |
3938 | .map_error = map_smb2_to_linux_error, | |
093b2bda PS |
3939 | .find_mid = smb2_find_mid, |
3940 | .check_message = smb2_check_message, | |
3941 | .dump_detail = smb2_dump_detail, | |
d60622eb PS |
3942 | .clear_stats = smb2_clear_stats, |
3943 | .print_stats = smb2_print_stats, | |
983c88a4 | 3944 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 3945 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 3946 | .downgrade_oplock = smb2_downgrade_oplock, |
ec2e4523 PS |
3947 | .need_neg = smb2_need_neg, |
3948 | .negotiate = smb2_negotiate, | |
3a3bab50 PS |
3949 | .negotiate_wsize = smb2_negotiate_wsize, |
3950 | .negotiate_rsize = smb2_negotiate_rsize, | |
5478f9ba PS |
3951 | .sess_setup = SMB2_sess_setup, |
3952 | .logoff = SMB2_logoff, | |
faaf946a PS |
3953 | .tree_connect = SMB2_tcon, |
3954 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 3955 | .qfs_tcon = smb2_qfs_tcon, |
2503a0db | 3956 | .is_path_accessible = smb2_is_path_accessible, |
9094fad1 PS |
3957 | .can_echo = smb2_can_echo, |
3958 | .echo = SMB2_echo, | |
be4cb9e3 PS |
3959 | .query_path_info = smb2_query_path_info, |
3960 | .get_srv_inum = smb2_get_srv_inum, | |
b7546bc5 | 3961 | .query_file_info = smb2_query_file_info, |
c839ff24 PS |
3962 | .set_path_size = smb2_set_path_size, |
3963 | .set_file_size = smb2_set_file_size, | |
1feeaac7 | 3964 | .set_file_info = smb2_set_file_info, |
64a5cfa6 | 3965 | .set_compression = smb2_set_compression, |
a0e73183 PS |
3966 | .mkdir = smb2_mkdir, |
3967 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1a500f01 | 3968 | .rmdir = smb2_rmdir, |
cbe6f439 | 3969 | .unlink = smb2_unlink, |
35143eb5 | 3970 | .rename = smb2_rename_path, |
568798cc | 3971 | .create_hardlink = smb2_create_hardlink, |
b42bf888 | 3972 | .query_symlink = smb2_query_symlink, |
5b23c97d SP |
3973 | .query_mf_symlink = smb3_query_mf_symlink, |
3974 | .create_mf_symlink = smb3_create_mf_symlink, | |
f0df737e PS |
3975 | .open = smb2_open_file, |
3976 | .set_fid = smb2_set_fid, | |
3977 | .close = smb2_close_file, | |
7a5cfb19 | 3978 | .flush = smb2_flush_file, |
09a4707e | 3979 | .async_readv = smb2_async_readv, |
33319141 | 3980 | .async_writev = smb2_async_writev, |
d8e05039 | 3981 | .sync_read = smb2_sync_read, |
009d3443 | 3982 | .sync_write = smb2_sync_write, |
d324f08d PS |
3983 | .query_dir_first = smb2_query_dir_first, |
3984 | .query_dir_next = smb2_query_dir_next, | |
3985 | .close_dir = smb2_close_dir, | |
3986 | .calc_smb_size = smb2_calc_size, | |
2e44b288 | 3987 | .is_status_pending = smb2_is_status_pending, |
511c54a2 | 3988 | .is_session_expired = smb2_is_session_expired, |
983c88a4 | 3989 | .oplock_response = smb2_oplock_response, |
6fc05c25 | 3990 | .queryfs = smb2_queryfs, |
f7ba7fe6 PS |
3991 | .mand_lock = smb2_mand_lock, |
3992 | .mand_unlock_range = smb2_unlock_range, | |
b140799a | 3993 | .push_mand_locks = smb2_push_mandatory_locks, |
b8c32dbb PS |
3994 | .get_lease_key = smb2_get_lease_key, |
3995 | .set_lease_key = smb2_set_lease_key, | |
3996 | .new_lease_key = smb2_new_lease_key, | |
38107d45 | 3997 | .calc_signature = smb2_calc_signature, |
53ef1016 PS |
3998 | .is_read_op = smb2_is_read_op, |
3999 | .set_oplock_level = smb2_set_oplock_level, | |
a41a28bd | 4000 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 4001 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 4002 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 4003 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 4004 | .dir_needs_close = smb2_dir_needs_close, |
9d49640a | 4005 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 4006 | .select_sectype = smb2_select_sectype, |
95907fea RS |
4007 | #ifdef CONFIG_CIFS_XATTR |
4008 | .query_all_EAs = smb2_query_eas, | |
5517554e | 4009 | .set_EA = smb2_set_ea, |
95907fea | 4010 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
4011 | #ifdef CONFIG_CIFS_ACL |
4012 | .get_acl = get_smb2_acl, | |
4013 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 4014 | .set_acl = set_smb2_acl, |
2f1afe25 | 4015 | #endif /* CIFS_ACL */ |
8ce79ec3 | 4016 | .next_header = smb2_next_header, |
f5b05d62 | 4017 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 4018 | .make_node = smb2_make_node, |
38107d45 SF |
4019 | }; |
4020 | ||
53ef1016 PS |
4021 | struct smb_version_operations smb21_operations = { |
4022 | .compare_fids = smb2_compare_fids, | |
4023 | .setup_request = smb2_setup_request, | |
4024 | .setup_async_request = smb2_setup_async_request, | |
4025 | .check_receive = smb2_check_receive, | |
4026 | .add_credits = smb2_add_credits, | |
4027 | .set_credits = smb2_set_credits, | |
4028 | .get_credits_field = smb2_get_credits_field, | |
4029 | .get_credits = smb2_get_credits, | |
cb7e9eab | 4030 | .wait_mtu_credits = smb2_wait_mtu_credits, |
9a1c67e8 | 4031 | .adjust_credits = smb2_adjust_credits, |
53ef1016 | 4032 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 4033 | .revert_current_mid = smb2_revert_current_mid, |
53ef1016 PS |
4034 | .read_data_offset = smb2_read_data_offset, |
4035 | .read_data_length = smb2_read_data_length, | |
4036 | .map_error = map_smb2_to_linux_error, | |
4037 | .find_mid = smb2_find_mid, | |
4038 | .check_message = smb2_check_message, | |
4039 | .dump_detail = smb2_dump_detail, | |
4040 | .clear_stats = smb2_clear_stats, | |
4041 | .print_stats = smb2_print_stats, | |
4042 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 4043 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
7b9b9edb | 4044 | .downgrade_oplock = smb21_downgrade_oplock, |
53ef1016 PS |
4045 | .need_neg = smb2_need_neg, |
4046 | .negotiate = smb2_negotiate, | |
4047 | .negotiate_wsize = smb2_negotiate_wsize, | |
4048 | .negotiate_rsize = smb2_negotiate_rsize, | |
4049 | .sess_setup = SMB2_sess_setup, | |
4050 | .logoff = SMB2_logoff, | |
4051 | .tree_connect = SMB2_tcon, | |
4052 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 4053 | .qfs_tcon = smb2_qfs_tcon, |
53ef1016 PS |
4054 | .is_path_accessible = smb2_is_path_accessible, |
4055 | .can_echo = smb2_can_echo, | |
4056 | .echo = SMB2_echo, | |
4057 | .query_path_info = smb2_query_path_info, | |
4058 | .get_srv_inum = smb2_get_srv_inum, | |
4059 | .query_file_info = smb2_query_file_info, | |
4060 | .set_path_size = smb2_set_path_size, | |
4061 | .set_file_size = smb2_set_file_size, | |
4062 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 4063 | .set_compression = smb2_set_compression, |
53ef1016 PS |
4064 | .mkdir = smb2_mkdir, |
4065 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
4066 | .rmdir = smb2_rmdir, | |
4067 | .unlink = smb2_unlink, | |
4068 | .rename = smb2_rename_path, | |
4069 | .create_hardlink = smb2_create_hardlink, | |
4070 | .query_symlink = smb2_query_symlink, | |
c22870ea | 4071 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 4072 | .create_mf_symlink = smb3_create_mf_symlink, |
53ef1016 PS |
4073 | .open = smb2_open_file, |
4074 | .set_fid = smb2_set_fid, | |
4075 | .close = smb2_close_file, | |
4076 | .flush = smb2_flush_file, | |
4077 | .async_readv = smb2_async_readv, | |
4078 | .async_writev = smb2_async_writev, | |
4079 | .sync_read = smb2_sync_read, | |
4080 | .sync_write = smb2_sync_write, | |
4081 | .query_dir_first = smb2_query_dir_first, | |
4082 | .query_dir_next = smb2_query_dir_next, | |
4083 | .close_dir = smb2_close_dir, | |
4084 | .calc_smb_size = smb2_calc_size, | |
4085 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 4086 | .is_session_expired = smb2_is_session_expired, |
53ef1016 PS |
4087 | .oplock_response = smb2_oplock_response, |
4088 | .queryfs = smb2_queryfs, | |
4089 | .mand_lock = smb2_mand_lock, | |
4090 | .mand_unlock_range = smb2_unlock_range, | |
4091 | .push_mand_locks = smb2_push_mandatory_locks, | |
4092 | .get_lease_key = smb2_get_lease_key, | |
4093 | .set_lease_key = smb2_set_lease_key, | |
4094 | .new_lease_key = smb2_new_lease_key, | |
4095 | .calc_signature = smb2_calc_signature, | |
4096 | .is_read_op = smb21_is_read_op, | |
4097 | .set_oplock_level = smb21_set_oplock_level, | |
a41a28bd | 4098 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 4099 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 4100 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 4101 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 4102 | .dir_needs_close = smb2_dir_needs_close, |
834170c8 | 4103 | .enum_snapshots = smb3_enum_snapshots, |
9d49640a | 4104 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 4105 | .select_sectype = smb2_select_sectype, |
95907fea RS |
4106 | #ifdef CONFIG_CIFS_XATTR |
4107 | .query_all_EAs = smb2_query_eas, | |
5517554e | 4108 | .set_EA = smb2_set_ea, |
95907fea | 4109 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
4110 | #ifdef CONFIG_CIFS_ACL |
4111 | .get_acl = get_smb2_acl, | |
4112 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 4113 | .set_acl = set_smb2_acl, |
2f1afe25 | 4114 | #endif /* CIFS_ACL */ |
8ce79ec3 | 4115 | .next_header = smb2_next_header, |
f5b05d62 | 4116 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 4117 | .make_node = smb2_make_node, |
53ef1016 | 4118 | }; |
38107d45 SF |
4119 | |
4120 | struct smb_version_operations smb30_operations = { | |
4121 | .compare_fids = smb2_compare_fids, | |
4122 | .setup_request = smb2_setup_request, | |
4123 | .setup_async_request = smb2_setup_async_request, | |
4124 | .check_receive = smb2_check_receive, | |
4125 | .add_credits = smb2_add_credits, | |
4126 | .set_credits = smb2_set_credits, | |
4127 | .get_credits_field = smb2_get_credits_field, | |
4128 | .get_credits = smb2_get_credits, | |
cb7e9eab | 4129 | .wait_mtu_credits = smb2_wait_mtu_credits, |
9a1c67e8 | 4130 | .adjust_credits = smb2_adjust_credits, |
38107d45 | 4131 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 4132 | .revert_current_mid = smb2_revert_current_mid, |
38107d45 SF |
4133 | .read_data_offset = smb2_read_data_offset, |
4134 | .read_data_length = smb2_read_data_length, | |
4135 | .map_error = map_smb2_to_linux_error, | |
4136 | .find_mid = smb2_find_mid, | |
4137 | .check_message = smb2_check_message, | |
4138 | .dump_detail = smb2_dump_detail, | |
4139 | .clear_stats = smb2_clear_stats, | |
4140 | .print_stats = smb2_print_stats, | |
769ee6a4 | 4141 | .dump_share_caps = smb2_dump_share_caps, |
38107d45 | 4142 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 4143 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
7b9b9edb | 4144 | .downgrade_oplock = smb21_downgrade_oplock, |
38107d45 SF |
4145 | .need_neg = smb2_need_neg, |
4146 | .negotiate = smb2_negotiate, | |
3d621230 SF |
4147 | .negotiate_wsize = smb3_negotiate_wsize, |
4148 | .negotiate_rsize = smb3_negotiate_rsize, | |
38107d45 SF |
4149 | .sess_setup = SMB2_sess_setup, |
4150 | .logoff = SMB2_logoff, | |
4151 | .tree_connect = SMB2_tcon, | |
4152 | .tree_disconnect = SMB2_tdis, | |
af6a12ea | 4153 | .qfs_tcon = smb3_qfs_tcon, |
38107d45 SF |
4154 | .is_path_accessible = smb2_is_path_accessible, |
4155 | .can_echo = smb2_can_echo, | |
4156 | .echo = SMB2_echo, | |
4157 | .query_path_info = smb2_query_path_info, | |
4158 | .get_srv_inum = smb2_get_srv_inum, | |
4159 | .query_file_info = smb2_query_file_info, | |
4160 | .set_path_size = smb2_set_path_size, | |
4161 | .set_file_size = smb2_set_file_size, | |
4162 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 4163 | .set_compression = smb2_set_compression, |
38107d45 SF |
4164 | .mkdir = smb2_mkdir, |
4165 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
4166 | .rmdir = smb2_rmdir, | |
4167 | .unlink = smb2_unlink, | |
4168 | .rename = smb2_rename_path, | |
4169 | .create_hardlink = smb2_create_hardlink, | |
b42bf888 | 4170 | .query_symlink = smb2_query_symlink, |
c22870ea | 4171 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 4172 | .create_mf_symlink = smb3_create_mf_symlink, |
38107d45 SF |
4173 | .open = smb2_open_file, |
4174 | .set_fid = smb2_set_fid, | |
4175 | .close = smb2_close_file, | |
4176 | .flush = smb2_flush_file, | |
4177 | .async_readv = smb2_async_readv, | |
4178 | .async_writev = smb2_async_writev, | |
4179 | .sync_read = smb2_sync_read, | |
4180 | .sync_write = smb2_sync_write, | |
4181 | .query_dir_first = smb2_query_dir_first, | |
4182 | .query_dir_next = smb2_query_dir_next, | |
4183 | .close_dir = smb2_close_dir, | |
4184 | .calc_smb_size = smb2_calc_size, | |
4185 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 4186 | .is_session_expired = smb2_is_session_expired, |
38107d45 SF |
4187 | .oplock_response = smb2_oplock_response, |
4188 | .queryfs = smb2_queryfs, | |
4189 | .mand_lock = smb2_mand_lock, | |
4190 | .mand_unlock_range = smb2_unlock_range, | |
4191 | .push_mand_locks = smb2_push_mandatory_locks, | |
4192 | .get_lease_key = smb2_get_lease_key, | |
4193 | .set_lease_key = smb2_set_lease_key, | |
4194 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 4195 | .generate_signingkey = generate_smb30signingkey, |
38107d45 | 4196 | .calc_signature = smb3_calc_signature, |
b3152e2c | 4197 | .set_integrity = smb3_set_integrity, |
53ef1016 | 4198 | .is_read_op = smb21_is_read_op, |
42873b0a | 4199 | .set_oplock_level = smb3_set_oplock_level, |
f047390a PS |
4200 | .create_lease_buf = smb3_create_lease_buf, |
4201 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 4202 | .copychunk_range = smb2_copychunk_range, |
ca9e7a1c | 4203 | .duplicate_extents = smb2_duplicate_extents, |
ff1c038a | 4204 | .validate_negotiate = smb3_validate_negotiate, |
7f6c5008 | 4205 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 4206 | .dir_needs_close = smb2_dir_needs_close, |
31742c5a | 4207 | .fallocate = smb3_fallocate, |
834170c8 | 4208 | .enum_snapshots = smb3_enum_snapshots, |
026e93dc | 4209 | .init_transform_rq = smb3_init_transform_rq, |
4326ed2f PS |
4210 | .is_transform_hdr = smb3_is_transform_hdr, |
4211 | .receive_transform = smb3_receive_transform, | |
9d49640a | 4212 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 4213 | .select_sectype = smb2_select_sectype, |
95907fea RS |
4214 | #ifdef CONFIG_CIFS_XATTR |
4215 | .query_all_EAs = smb2_query_eas, | |
5517554e | 4216 | .set_EA = smb2_set_ea, |
95907fea | 4217 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
4218 | #ifdef CONFIG_CIFS_ACL |
4219 | .get_acl = get_smb2_acl, | |
4220 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 4221 | .set_acl = set_smb2_acl, |
2f1afe25 | 4222 | #endif /* CIFS_ACL */ |
8ce79ec3 | 4223 | .next_header = smb2_next_header, |
f5b05d62 | 4224 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 4225 | .make_node = smb2_make_node, |
1080ef75 SF |
4226 | }; |
4227 | ||
aab1893d SF |
4228 | struct smb_version_operations smb311_operations = { |
4229 | .compare_fids = smb2_compare_fids, | |
4230 | .setup_request = smb2_setup_request, | |
4231 | .setup_async_request = smb2_setup_async_request, | |
4232 | .check_receive = smb2_check_receive, | |
4233 | .add_credits = smb2_add_credits, | |
4234 | .set_credits = smb2_set_credits, | |
4235 | .get_credits_field = smb2_get_credits_field, | |
4236 | .get_credits = smb2_get_credits, | |
4237 | .wait_mtu_credits = smb2_wait_mtu_credits, | |
9a1c67e8 | 4238 | .adjust_credits = smb2_adjust_credits, |
aab1893d | 4239 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 4240 | .revert_current_mid = smb2_revert_current_mid, |
aab1893d SF |
4241 | .read_data_offset = smb2_read_data_offset, |
4242 | .read_data_length = smb2_read_data_length, | |
4243 | .map_error = map_smb2_to_linux_error, | |
4244 | .find_mid = smb2_find_mid, | |
4245 | .check_message = smb2_check_message, | |
4246 | .dump_detail = smb2_dump_detail, | |
4247 | .clear_stats = smb2_clear_stats, | |
4248 | .print_stats = smb2_print_stats, | |
4249 | .dump_share_caps = smb2_dump_share_caps, | |
4250 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 4251 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
7b9b9edb | 4252 | .downgrade_oplock = smb21_downgrade_oplock, |
aab1893d SF |
4253 | .need_neg = smb2_need_neg, |
4254 | .negotiate = smb2_negotiate, | |
3d621230 SF |
4255 | .negotiate_wsize = smb3_negotiate_wsize, |
4256 | .negotiate_rsize = smb3_negotiate_rsize, | |
aab1893d SF |
4257 | .sess_setup = SMB2_sess_setup, |
4258 | .logoff = SMB2_logoff, | |
4259 | .tree_connect = SMB2_tcon, | |
4260 | .tree_disconnect = SMB2_tdis, | |
4261 | .qfs_tcon = smb3_qfs_tcon, | |
4262 | .is_path_accessible = smb2_is_path_accessible, | |
4263 | .can_echo = smb2_can_echo, | |
4264 | .echo = SMB2_echo, | |
4265 | .query_path_info = smb2_query_path_info, | |
4266 | .get_srv_inum = smb2_get_srv_inum, | |
4267 | .query_file_info = smb2_query_file_info, | |
4268 | .set_path_size = smb2_set_path_size, | |
4269 | .set_file_size = smb2_set_file_size, | |
4270 | .set_file_info = smb2_set_file_info, | |
4271 | .set_compression = smb2_set_compression, | |
4272 | .mkdir = smb2_mkdir, | |
4273 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
bea851b8 | 4274 | .posix_mkdir = smb311_posix_mkdir, |
aab1893d SF |
4275 | .rmdir = smb2_rmdir, |
4276 | .unlink = smb2_unlink, | |
4277 | .rename = smb2_rename_path, | |
4278 | .create_hardlink = smb2_create_hardlink, | |
4279 | .query_symlink = smb2_query_symlink, | |
4280 | .query_mf_symlink = smb3_query_mf_symlink, | |
4281 | .create_mf_symlink = smb3_create_mf_symlink, | |
4282 | .open = smb2_open_file, | |
4283 | .set_fid = smb2_set_fid, | |
4284 | .close = smb2_close_file, | |
4285 | .flush = smb2_flush_file, | |
4286 | .async_readv = smb2_async_readv, | |
4287 | .async_writev = smb2_async_writev, | |
4288 | .sync_read = smb2_sync_read, | |
4289 | .sync_write = smb2_sync_write, | |
4290 | .query_dir_first = smb2_query_dir_first, | |
4291 | .query_dir_next = smb2_query_dir_next, | |
4292 | .close_dir = smb2_close_dir, | |
4293 | .calc_smb_size = smb2_calc_size, | |
4294 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 4295 | .is_session_expired = smb2_is_session_expired, |
aab1893d | 4296 | .oplock_response = smb2_oplock_response, |
2d304217 | 4297 | .queryfs = smb311_queryfs, |
aab1893d SF |
4298 | .mand_lock = smb2_mand_lock, |
4299 | .mand_unlock_range = smb2_unlock_range, | |
4300 | .push_mand_locks = smb2_push_mandatory_locks, | |
4301 | .get_lease_key = smb2_get_lease_key, | |
4302 | .set_lease_key = smb2_set_lease_key, | |
4303 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 4304 | .generate_signingkey = generate_smb311signingkey, |
aab1893d | 4305 | .calc_signature = smb3_calc_signature, |
b3152e2c | 4306 | .set_integrity = smb3_set_integrity, |
aab1893d SF |
4307 | .is_read_op = smb21_is_read_op, |
4308 | .set_oplock_level = smb3_set_oplock_level, | |
4309 | .create_lease_buf = smb3_create_lease_buf, | |
4310 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 4311 | .copychunk_range = smb2_copychunk_range, |
02b16665 | 4312 | .duplicate_extents = smb2_duplicate_extents, |
aab1893d SF |
4313 | /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */ |
4314 | .wp_retry_size = smb2_wp_retry_size, | |
4315 | .dir_needs_close = smb2_dir_needs_close, | |
4316 | .fallocate = smb3_fallocate, | |
834170c8 | 4317 | .enum_snapshots = smb3_enum_snapshots, |
026e93dc | 4318 | .init_transform_rq = smb3_init_transform_rq, |
4326ed2f PS |
4319 | .is_transform_hdr = smb3_is_transform_hdr, |
4320 | .receive_transform = smb3_receive_transform, | |
9d49640a | 4321 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 4322 | .select_sectype = smb2_select_sectype, |
95907fea RS |
4323 | #ifdef CONFIG_CIFS_XATTR |
4324 | .query_all_EAs = smb2_query_eas, | |
5517554e | 4325 | .set_EA = smb2_set_ea, |
95907fea | 4326 | #endif /* CIFS_XATTR */ |
c1777df1 RS |
4327 | #ifdef CONFIG_CIFS_ACL |
4328 | .get_acl = get_smb2_acl, | |
4329 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
4330 | .set_acl = set_smb2_acl, | |
4331 | #endif /* CIFS_ACL */ | |
8ce79ec3 | 4332 | .next_header = smb2_next_header, |
f5b05d62 | 4333 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 4334 | .make_node = smb2_make_node, |
aab1893d | 4335 | }; |
aab1893d | 4336 | |
dd446b16 SF |
4337 | struct smb_version_values smb20_values = { |
4338 | .version_string = SMB20_VERSION_STRING, | |
4339 | .protocol_id = SMB20_PROT_ID, | |
4340 | .req_capabilities = 0, /* MBZ */ | |
4341 | .large_lock_type = 0, | |
4342 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
4343 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
4344 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
4345 | .header_size = sizeof(struct smb2_sync_hdr), |
4346 | .header_preamble_size = 0, | |
dd446b16 SF |
4347 | .max_header_size = MAX_SMB2_HDR_SIZE, |
4348 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
4349 | .lock_cmd = SMB2_LOCK, | |
4350 | .cap_unix = 0, | |
4351 | .cap_nt_find = SMB2_NT_FIND, | |
4352 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
4353 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
4354 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 4355 | .create_lease_size = sizeof(struct create_lease), |
dd446b16 SF |
4356 | }; |
4357 | ||
1080ef75 SF |
4358 | struct smb_version_values smb21_values = { |
4359 | .version_string = SMB21_VERSION_STRING, | |
e4aa25e7 SF |
4360 | .protocol_id = SMB21_PROT_ID, |
4361 | .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */ | |
4362 | .large_lock_type = 0, | |
4363 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
4364 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
4365 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
4366 | .header_size = sizeof(struct smb2_sync_hdr), |
4367 | .header_preamble_size = 0, | |
e4aa25e7 SF |
4368 | .max_header_size = MAX_SMB2_HDR_SIZE, |
4369 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
4370 | .lock_cmd = SMB2_LOCK, | |
4371 | .cap_unix = 0, | |
4372 | .cap_nt_find = SMB2_NT_FIND, | |
4373 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
4374 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
4375 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 4376 | .create_lease_size = sizeof(struct create_lease), |
e4aa25e7 SF |
4377 | }; |
4378 | ||
9764c02f SF |
4379 | struct smb_version_values smb3any_values = { |
4380 | .version_string = SMB3ANY_VERSION_STRING, | |
4381 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
f8015683 | 4382 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
9764c02f SF |
4383 | .large_lock_type = 0, |
4384 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
4385 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
4386 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
4387 | .header_size = sizeof(struct smb2_sync_hdr), |
4388 | .header_preamble_size = 0, | |
9764c02f SF |
4389 | .max_header_size = MAX_SMB2_HDR_SIZE, |
4390 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
4391 | .lock_cmd = SMB2_LOCK, | |
4392 | .cap_unix = 0, | |
4393 | .cap_nt_find = SMB2_NT_FIND, | |
4394 | .cap_large_files = SMB2_LARGE_FILES, | |
4395 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
4396 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
4397 | .create_lease_size = sizeof(struct create_lease_v2), | |
4398 | }; | |
4399 | ||
4400 | struct smb_version_values smbdefault_values = { | |
4401 | .version_string = SMBDEFAULT_VERSION_STRING, | |
4402 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
f8015683 | 4403 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
9764c02f SF |
4404 | .large_lock_type = 0, |
4405 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
4406 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
4407 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
4408 | .header_size = sizeof(struct smb2_sync_hdr), |
4409 | .header_preamble_size = 0, | |
9764c02f SF |
4410 | .max_header_size = MAX_SMB2_HDR_SIZE, |
4411 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
4412 | .lock_cmd = SMB2_LOCK, | |
4413 | .cap_unix = 0, | |
4414 | .cap_nt_find = SMB2_NT_FIND, | |
4415 | .cap_large_files = SMB2_LARGE_FILES, | |
4416 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
4417 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
4418 | .create_lease_size = sizeof(struct create_lease_v2), | |
4419 | }; | |
4420 | ||
e4aa25e7 SF |
4421 | struct smb_version_values smb30_values = { |
4422 | .version_string = SMB30_VERSION_STRING, | |
4423 | .protocol_id = SMB30_PROT_ID, | |
f8015683 | 4424 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
027e8eec PS |
4425 | .large_lock_type = 0, |
4426 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
4427 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
4428 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
4429 | .header_size = sizeof(struct smb2_sync_hdr), |
4430 | .header_preamble_size = 0, | |
093b2bda | 4431 | .max_header_size = MAX_SMB2_HDR_SIZE, |
09a4707e | 4432 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, |
2dc7e1c0 | 4433 | .lock_cmd = SMB2_LOCK, |
29e20f9c PS |
4434 | .cap_unix = 0, |
4435 | .cap_nt_find = SMB2_NT_FIND, | |
4436 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
4437 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
4438 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 4439 | .create_lease_size = sizeof(struct create_lease_v2), |
1080ef75 | 4440 | }; |
20b6d8b4 SF |
4441 | |
4442 | struct smb_version_values smb302_values = { | |
4443 | .version_string = SMB302_VERSION_STRING, | |
4444 | .protocol_id = SMB302_PROT_ID, | |
f8015683 | 4445 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
20b6d8b4 SF |
4446 | .large_lock_type = 0, |
4447 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
4448 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
4449 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
4450 | .header_size = sizeof(struct smb2_sync_hdr), |
4451 | .header_preamble_size = 0, | |
20b6d8b4 SF |
4452 | .max_header_size = MAX_SMB2_HDR_SIZE, |
4453 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
4454 | .lock_cmd = SMB2_LOCK, | |
4455 | .cap_unix = 0, | |
4456 | .cap_nt_find = SMB2_NT_FIND, | |
4457 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
4458 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
4459 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 4460 | .create_lease_size = sizeof(struct create_lease_v2), |
20b6d8b4 | 4461 | }; |
5f7fbf73 | 4462 | |
5f7fbf73 SF |
4463 | struct smb_version_values smb311_values = { |
4464 | .version_string = SMB311_VERSION_STRING, | |
4465 | .protocol_id = SMB311_PROT_ID, | |
f8015683 | 4466 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
5f7fbf73 SF |
4467 | .large_lock_type = 0, |
4468 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
4469 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
4470 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
4471 | .header_size = sizeof(struct smb2_sync_hdr), |
4472 | .header_preamble_size = 0, | |
5f7fbf73 SF |
4473 | .max_header_size = MAX_SMB2_HDR_SIZE, |
4474 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
4475 | .lock_cmd = SMB2_LOCK, | |
4476 | .cap_unix = 0, | |
4477 | .cap_nt_find = SMB2_NT_FIND, | |
4478 | .cap_large_files = SMB2_LARGE_FILES, | |
4479 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
4480 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
4481 | .create_lease_size = sizeof(struct create_lease_v2), | |
4482 | }; |