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