Commit | Line | Data |
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a205d500 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1080ef75 SF |
2 | /* |
3 | * SMB2 version specific operations | |
4 | * | |
5 | * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com> | |
1080ef75 SF |
6 | */ |
7 | ||
3a3bab50 | 8 | #include <linux/pagemap.h> |
6fc05c25 | 9 | #include <linux/vfs.h> |
f29ebb47 | 10 | #include <linux/falloc.h> |
026e93dc | 11 | #include <linux/scatterlist.h> |
4fa8e504 | 12 | #include <linux/uuid.h> |
35adffed | 13 | #include <linux/sort.h> |
026e93dc | 14 | #include <crypto/aead.h> |
10c5db28 | 15 | #include <linux/fiemap.h> |
dea29037 | 16 | #include <uapi/linux/magic.h> |
8bd0d701 | 17 | #include "cifsfs.h" |
1080ef75 | 18 | #include "cifsglob.h" |
2dc7e1c0 PS |
19 | #include "smb2pdu.h" |
20 | #include "smb2proto.h" | |
28ea5290 PS |
21 | #include "cifsproto.h" |
22 | #include "cifs_debug.h" | |
b42bf888 | 23 | #include "cifs_unicode.h" |
2e44b288 | 24 | #include "smb2status.h" |
6fc05c25 | 25 | #include "smb2glob.h" |
834170c8 | 26 | #include "cifs_ioctl.h" |
09902f8d | 27 | #include "smbdirect.h" |
84330d41 | 28 | #include "fscache.h" |
3fa1c6d1 | 29 | #include "fs_context.h" |
05b98fd2 | 30 | #include "cached_dir.h" |
c520ba75 | 31 | #include "reparse.h" |
28ea5290 | 32 | |
ef68e831 | 33 | /* Change credits for different ops and return the total number of credits */ |
28ea5290 PS |
34 | static int |
35 | change_conf(struct TCP_Server_Info *server) | |
36 | { | |
37 | server->credits += server->echo_credits + server->oplock_credits; | |
5e90aa21 SP |
38 | if (server->credits > server->max_credits) |
39 | server->credits = server->max_credits; | |
28ea5290 PS |
40 | server->oplock_credits = server->echo_credits = 0; |
41 | switch (server->credits) { | |
42 | case 0: | |
ef68e831 | 43 | return 0; |
28ea5290 PS |
44 | case 1: |
45 | server->echoes = false; | |
46 | server->oplocks = false; | |
28ea5290 PS |
47 | break; |
48 | case 2: | |
49 | server->echoes = true; | |
50 | server->oplocks = false; | |
51 | server->echo_credits = 1; | |
28ea5290 PS |
52 | break; |
53 | default: | |
54 | server->echoes = true; | |
e0ddde9d SF |
55 | if (enable_oplocks) { |
56 | server->oplocks = true; | |
57 | server->oplock_credits = 1; | |
58 | } else | |
59 | server->oplocks = false; | |
60 | ||
28ea5290 | 61 | server->echo_credits = 1; |
28ea5290 PS |
62 | } |
63 | server->credits -= server->echo_credits + server->oplock_credits; | |
ef68e831 | 64 | return server->credits + server->echo_credits + server->oplock_credits; |
28ea5290 PS |
65 | } |
66 | ||
67 | static void | |
335b7b62 PS |
68 | smb2_add_credits(struct TCP_Server_Info *server, |
69 | const struct cifs_credits *credits, const int optype) | |
28ea5290 | 70 | { |
ef68e831 | 71 | int *val, rc = -1; |
6d82c27a | 72 | int scredits, in_flight; |
335b7b62 PS |
73 | unsigned int add = credits->value; |
74 | unsigned int instance = credits->instance; | |
75 | bool reconnect_detected = false; | |
6d82c27a | 76 | bool reconnect_with_invalid_credits = 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)) | |
6d82c27a SP |
83 | reconnect_with_invalid_credits = true; |
84 | ||
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 */ | |
a0a3036b | 92 | pr_warn_once("server overflowed SMB3 credits\n"); |
1ddff774 DH |
93 | trace_smb3_overflow_credits(server->CurrentMid, |
94 | server->conn_id, server->hostname, *val, | |
95 | add, server->in_flight); | |
141891f4 | 96 | } |
e4645cc2 | 97 | WARN_ON_ONCE(server->in_flight == 0); |
28ea5290 | 98 | server->in_flight--; |
0f56db83 SP |
99 | if (server->in_flight == 0 && |
100 | ((optype & CIFS_OP_MASK) != CIFS_NEG_OP) && | |
101 | ((optype & CIFS_OP_MASK) != CIFS_SESS_OP)) | |
28ea5290 | 102 | rc = change_conf(server); |
983c88a4 PS |
103 | /* |
104 | * Sometimes server returns 0 credits on oplock break ack - we need to | |
105 | * rebalance credits in this case. | |
106 | */ | |
107 | else if (server->in_flight > 0 && server->oplock_credits == 0 && | |
108 | server->oplocks) { | |
109 | if (server->credits > 1) { | |
110 | server->credits--; | |
111 | server->oplock_credits++; | |
112 | } | |
e8eeca0b SF |
113 | } else if ((server->in_flight > 0) && (server->oplock_credits > 3) && |
114 | ((optype & CIFS_OP_MASK) == CIFS_OBREAK_OP)) | |
115 | /* if now have too many oplock credits, rebalance so don't starve normal ops */ | |
116 | change_conf(server); | |
117 | ||
6d82c27a SP |
118 | scredits = *val; |
119 | in_flight = server->in_flight; | |
28ea5290 PS |
120 | spin_unlock(&server->req_lock); |
121 | wake_up(&server->request_q); | |
ef68e831 | 122 | |
cd7b699b | 123 | if (reconnect_detected) { |
6d82c27a SP |
124 | trace_smb3_reconnect_detected(server->CurrentMid, |
125 | server->conn_id, server->hostname, scredits, add, in_flight); | |
126 | ||
335b7b62 PS |
127 | cifs_dbg(FYI, "trying to put %d credits from the old server instance %d\n", |
128 | add, instance); | |
cd7b699b | 129 | } |
335b7b62 | 130 | |
6d82c27a SP |
131 | if (reconnect_with_invalid_credits) { |
132 | trace_smb3_reconnect_with_invalid_credits(server->CurrentMid, | |
133 | server->conn_id, server->hostname, scredits, add, in_flight); | |
134 | cifs_dbg(FYI, "Negotiate operation when server credits is non-zero. Optype: %d, server credits: %d, credits added: %d\n", | |
135 | optype, scredits, add); | |
136 | } | |
137 | ||
d7d7a66a | 138 | spin_lock(&server->srv_lock); |
82e0457a | 139 | if (server->tcpStatus == CifsNeedReconnect |
080dc5e5 | 140 | || server->tcpStatus == CifsExiting) { |
d7d7a66a | 141 | spin_unlock(&server->srv_lock); |
ef68e831 | 142 | return; |
080dc5e5 | 143 | } |
d7d7a66a | 144 | spin_unlock(&server->srv_lock); |
ef68e831 PS |
145 | |
146 | switch (rc) { | |
147 | case -1: | |
148 | /* change_conf hasn't been executed */ | |
149 | break; | |
150 | case 0: | |
3175eb9b | 151 | cifs_server_dbg(VFS, "Possible client or server bug - zero credits\n"); |
ef68e831 PS |
152 | break; |
153 | case 1: | |
3175eb9b | 154 | cifs_server_dbg(VFS, "disabling echoes and oplocks\n"); |
ef68e831 PS |
155 | break; |
156 | case 2: | |
157 | cifs_dbg(FYI, "disabling oplocks\n"); | |
158 | break; | |
159 | default: | |
6d82c27a SP |
160 | /* change_conf rebalanced credits for different types */ |
161 | break; | |
ef68e831 | 162 | } |
6d82c27a SP |
163 | |
164 | trace_smb3_add_credits(server->CurrentMid, | |
165 | server->conn_id, server->hostname, scredits, add, in_flight); | |
166 | cifs_dbg(FYI, "%s: added %u credits total=%d\n", __func__, add, scredits); | |
28ea5290 PS |
167 | } |
168 | ||
169 | static void | |
170 | smb2_set_credits(struct TCP_Server_Info *server, const int val) | |
171 | { | |
6d82c27a SP |
172 | int scredits, in_flight; |
173 | ||
28ea5290 PS |
174 | spin_lock(&server->req_lock); |
175 | server->credits = val; | |
09ee7a3b | 176 | if (val == 1) { |
9e1a37da | 177 | server->reconnect_instance++; |
09ee7a3b SF |
178 | /* |
179 | * ChannelSequence updated for all channels in primary channel so that consistent | |
180 | * across SMB3 requests sent on any channel. See MS-SMB2 3.2.4.1 and 3.2.7.1 | |
181 | */ | |
b3773b19 | 182 | if (SERVER_IS_CHAN(server)) |
09ee7a3b SF |
183 | server->primary_server->channel_sequence_num++; |
184 | else | |
185 | server->channel_sequence_num++; | |
186 | } | |
6d82c27a SP |
187 | scredits = server->credits; |
188 | in_flight = server->in_flight; | |
28ea5290 | 189 | spin_unlock(&server->req_lock); |
cd7b699b SP |
190 | |
191 | trace_smb3_set_credits(server->CurrentMid, | |
6d82c27a | 192 | server->conn_id, server->hostname, scredits, val, in_flight); |
cd7b699b SP |
193 | cifs_dbg(FYI, "%s: set %u credits\n", __func__, val); |
194 | ||
6e4d3bbe SF |
195 | /* don't log while holding the lock */ |
196 | if (val == 1) | |
197 | cifs_dbg(FYI, "set credits to 1 due to smb2 reconnect\n"); | |
28ea5290 PS |
198 | } |
199 | ||
200 | static int * | |
201 | smb2_get_credits_field(struct TCP_Server_Info *server, const int optype) | |
202 | { | |
203 | switch (optype) { | |
204 | case CIFS_ECHO_OP: | |
205 | return &server->echo_credits; | |
206 | case CIFS_OBREAK_OP: | |
207 | return &server->oplock_credits; | |
208 | default: | |
209 | return &server->credits; | |
210 | } | |
211 | } | |
212 | ||
213 | static unsigned int | |
214 | smb2_get_credits(struct mid_q_entry *mid) | |
215 | { | |
86a7964b | 216 | return mid->credits_received; |
28ea5290 | 217 | } |
2dc7e1c0 | 218 | |
cb7e9eab | 219 | static int |
56257334 DH |
220 | smb2_wait_mtu_credits(struct TCP_Server_Info *server, size_t size, |
221 | size_t *num, struct cifs_credits *credits) | |
cb7e9eab PS |
222 | { |
223 | int rc = 0; | |
6d82c27a | 224 | unsigned int scredits, in_flight; |
cb7e9eab PS |
225 | |
226 | spin_lock(&server->req_lock); | |
227 | while (1) { | |
326a8d04 SP |
228 | spin_unlock(&server->req_lock); |
229 | ||
230 | spin_lock(&server->srv_lock); | |
231 | if (server->tcpStatus == CifsExiting) { | |
232 | spin_unlock(&server->srv_lock); | |
233 | return -ENOENT; | |
234 | } | |
235 | spin_unlock(&server->srv_lock); | |
236 | ||
237 | spin_lock(&server->req_lock); | |
cb7e9eab PS |
238 | if (server->credits <= 0) { |
239 | spin_unlock(&server->req_lock); | |
240 | cifs_num_waiters_inc(server); | |
241 | rc = wait_event_killable(server->request_q, | |
b227d215 | 242 | has_credits(server, &server->credits, 1)); |
cb7e9eab PS |
243 | cifs_num_waiters_dec(server); |
244 | if (rc) | |
245 | return rc; | |
246 | spin_lock(&server->req_lock); | |
247 | } else { | |
cb7e9eab PS |
248 | scredits = server->credits; |
249 | /* can deadlock with reopen */ | |
acc58d0b | 250 | if (scredits <= 8) { |
cb7e9eab | 251 | *num = SMB2_MAX_BUFFER_SIZE; |
335b7b62 PS |
252 | credits->value = 0; |
253 | credits->instance = 0; | |
cb7e9eab PS |
254 | break; |
255 | } | |
256 | ||
acc58d0b PS |
257 | /* leave some credits for reopen and other ops */ |
258 | scredits -= 8; | |
cb7e9eab PS |
259 | *num = min_t(unsigned int, size, |
260 | scredits * SMB2_MAX_BUFFER_SIZE); | |
261 | ||
335b7b62 PS |
262 | credits->value = |
263 | DIV_ROUND_UP(*num, SMB2_MAX_BUFFER_SIZE); | |
264 | credits->instance = server->reconnect_instance; | |
265 | server->credits -= credits->value; | |
cb7e9eab | 266 | server->in_flight++; |
1b63f184 SF |
267 | if (server->in_flight > server->max_in_flight) |
268 | server->max_in_flight = server->in_flight; | |
cb7e9eab PS |
269 | break; |
270 | } | |
271 | } | |
6d82c27a SP |
272 | scredits = server->credits; |
273 | in_flight = server->in_flight; | |
cb7e9eab | 274 | spin_unlock(&server->req_lock); |
cd7b699b | 275 | |
1ddff774 | 276 | trace_smb3_wait_credits(server->CurrentMid, |
6d82c27a | 277 | server->conn_id, server->hostname, scredits, -(credits->value), in_flight); |
cd7b699b SP |
278 | cifs_dbg(FYI, "%s: removed %u credits total=%d\n", |
279 | __func__, credits->value, scredits); | |
280 | ||
cb7e9eab PS |
281 | return rc; |
282 | } | |
283 | ||
9a1c67e8 PS |
284 | static int |
285 | smb2_adjust_credits(struct TCP_Server_Info *server, | |
286 | struct cifs_credits *credits, | |
287 | const unsigned int payload_size) | |
288 | { | |
289 | int new_val = DIV_ROUND_UP(payload_size, SMB2_MAX_BUFFER_SIZE); | |
6d82c27a | 290 | int scredits, in_flight; |
9a1c67e8 PS |
291 | |
292 | if (!credits->value || credits->value == new_val) | |
293 | return 0; | |
294 | ||
295 | if (credits->value < new_val) { | |
cd7b699b | 296 | trace_smb3_too_many_credits(server->CurrentMid, |
6d82c27a | 297 | server->conn_id, server->hostname, 0, credits->value - new_val, 0); |
cd7b699b SP |
298 | cifs_server_dbg(VFS, "request has less credits (%d) than required (%d)", |
299 | credits->value, new_val); | |
300 | ||
ebc3d4e4 | 301 | return -EOPNOTSUPP; |
9a1c67e8 PS |
302 | } |
303 | ||
304 | spin_lock(&server->req_lock); | |
305 | ||
306 | if (server->reconnect_instance != credits->instance) { | |
6d82c27a SP |
307 | scredits = server->credits; |
308 | in_flight = server->in_flight; | |
9a1c67e8 | 309 | spin_unlock(&server->req_lock); |
6d82c27a | 310 | |
cd7b699b | 311 | trace_smb3_reconnect_detected(server->CurrentMid, |
6d82c27a SP |
312 | server->conn_id, server->hostname, scredits, |
313 | credits->value - new_val, in_flight); | |
3175eb9b | 314 | cifs_server_dbg(VFS, "trying to return %d credits to old session\n", |
9a1c67e8 PS |
315 | credits->value - new_val); |
316 | return -EAGAIN; | |
317 | } | |
318 | ||
319 | server->credits += credits->value - new_val; | |
cd7b699b | 320 | scredits = server->credits; |
6d82c27a | 321 | in_flight = server->in_flight; |
9a1c67e8 PS |
322 | spin_unlock(&server->req_lock); |
323 | wake_up(&server->request_q); | |
cd7b699b | 324 | |
1ddff774 | 325 | trace_smb3_adj_credits(server->CurrentMid, |
6d82c27a SP |
326 | server->conn_id, server->hostname, scredits, |
327 | credits->value - new_val, in_flight); | |
cd7b699b SP |
328 | cifs_dbg(FYI, "%s: adjust added %u credits total=%d\n", |
329 | __func__, credits->value - new_val, scredits); | |
330 | ||
6d82c27a SP |
331 | credits->value = new_val; |
332 | ||
9a1c67e8 PS |
333 | return 0; |
334 | } | |
335 | ||
2dc7e1c0 PS |
336 | static __u64 |
337 | smb2_get_next_mid(struct TCP_Server_Info *server) | |
338 | { | |
339 | __u64 mid; | |
340 | /* for SMB2 we need the current value */ | |
d7d7a66a | 341 | spin_lock(&server->mid_lock); |
2dc7e1c0 | 342 | mid = server->CurrentMid++; |
d7d7a66a | 343 | spin_unlock(&server->mid_lock); |
2dc7e1c0 PS |
344 | return mid; |
345 | } | |
1080ef75 | 346 | |
c781af7e PS |
347 | static void |
348 | smb2_revert_current_mid(struct TCP_Server_Info *server, const unsigned int val) | |
349 | { | |
d7d7a66a | 350 | spin_lock(&server->mid_lock); |
c781af7e PS |
351 | if (server->CurrentMid >= val) |
352 | server->CurrentMid -= val; | |
d7d7a66a | 353 | spin_unlock(&server->mid_lock); |
c781af7e PS |
354 | } |
355 | ||
093b2bda | 356 | static struct mid_q_entry * |
ac873aa3 | 357 | __smb2_find_mid(struct TCP_Server_Info *server, char *buf, bool dequeue) |
093b2bda PS |
358 | { |
359 | struct mid_q_entry *mid; | |
0d35e382 | 360 | struct smb2_hdr *shdr = (struct smb2_hdr *)buf; |
31473fc4 | 361 | __u64 wire_mid = le64_to_cpu(shdr->MessageId); |
093b2bda | 362 | |
31473fc4 | 363 | if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) { |
3175eb9b | 364 | cifs_server_dbg(VFS, "Encrypted frame parsing not supported yet\n"); |
373512ec SF |
365 | return NULL; |
366 | } | |
367 | ||
d7d7a66a | 368 | spin_lock(&server->mid_lock); |
093b2bda | 369 | list_for_each_entry(mid, &server->pending_mid_q, qhead) { |
9235d098 | 370 | if ((mid->mid == wire_mid) && |
093b2bda | 371 | (mid->mid_state == MID_REQUEST_SUBMITTED) && |
31473fc4 | 372 | (mid->command == shdr->Command)) { |
696e420b | 373 | kref_get(&mid->refcount); |
ac873aa3 RS |
374 | if (dequeue) { |
375 | list_del_init(&mid->qhead); | |
376 | mid->mid_flags |= MID_DELETED; | |
377 | } | |
d7d7a66a | 378 | spin_unlock(&server->mid_lock); |
093b2bda PS |
379 | return mid; |
380 | } | |
381 | } | |
d7d7a66a | 382 | spin_unlock(&server->mid_lock); |
093b2bda PS |
383 | return NULL; |
384 | } | |
385 | ||
ac873aa3 RS |
386 | static struct mid_q_entry * |
387 | smb2_find_mid(struct TCP_Server_Info *server, char *buf) | |
388 | { | |
389 | return __smb2_find_mid(server, buf, false); | |
390 | } | |
391 | ||
392 | static struct mid_q_entry * | |
393 | smb2_find_dequeue_mid(struct TCP_Server_Info *server, char *buf) | |
394 | { | |
395 | return __smb2_find_mid(server, buf, true); | |
396 | } | |
397 | ||
093b2bda | 398 | static void |
14547f7d | 399 | smb2_dump_detail(void *buf, struct TCP_Server_Info *server) |
093b2bda PS |
400 | { |
401 | #ifdef CONFIG_CIFS_DEBUG2 | |
0d35e382 | 402 | struct smb2_hdr *shdr = (struct smb2_hdr *)buf; |
093b2bda | 403 | |
3175eb9b | 404 | cifs_server_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n", |
31473fc4 | 405 | shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId, |
0d35e382 | 406 | shdr->Id.SyncId.ProcessId); |
567320c4 PA |
407 | if (!server->ops->check_message(buf, server->total_read, server)) { |
408 | cifs_server_dbg(VFS, "smb buf %p len %u\n", buf, | |
409 | server->ops->calc_smb_size(buf)); | |
410 | } | |
093b2bda PS |
411 | #endif |
412 | } | |
413 | ||
ec2e4523 PS |
414 | static bool |
415 | smb2_need_neg(struct TCP_Server_Info *server) | |
416 | { | |
417 | return server->max_read == 0; | |
418 | } | |
419 | ||
420 | static int | |
f486ef8e SP |
421 | smb2_negotiate(const unsigned int xid, |
422 | struct cifs_ses *ses, | |
423 | struct TCP_Server_Info *server) | |
ec2e4523 PS |
424 | { |
425 | int rc; | |
a205d500 | 426 | |
d7d7a66a | 427 | spin_lock(&server->mid_lock); |
f486ef8e | 428 | server->CurrentMid = 0; |
d7d7a66a | 429 | spin_unlock(&server->mid_lock); |
f486ef8e | 430 | rc = SMB2_negotiate(xid, ses, server); |
ec2e4523 PS |
431 | /* BB we probably don't need to retry with modern servers */ |
432 | if (rc == -EAGAIN) | |
433 | rc = -EHOSTDOWN; | |
434 | return rc; | |
435 | } | |
436 | ||
3a3bab50 | 437 | static unsigned int |
3fa1c6d1 | 438 | smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3a3bab50 PS |
439 | { |
440 | struct TCP_Server_Info *server = tcon->ses->server; | |
441 | unsigned int wsize; | |
442 | ||
443 | /* start with specified wsize, or default */ | |
3fa1c6d1 | 444 | wsize = ctx->wsize ? ctx->wsize : CIFS_DEFAULT_IOSIZE; |
3a3bab50 | 445 | wsize = min_t(unsigned int, wsize, server->max_write); |
cb7e9eab PS |
446 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) |
447 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 448 | |
3a3bab50 PS |
449 | return wsize; |
450 | } | |
451 | ||
3d621230 | 452 | static unsigned int |
3fa1c6d1 | 453 | smb3_negotiate_wsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3d621230 SF |
454 | { |
455 | struct TCP_Server_Info *server = tcon->ses->server; | |
456 | unsigned int wsize; | |
457 | ||
458 | /* start with specified wsize, or default */ | |
3fa1c6d1 | 459 | wsize = ctx->wsize ? ctx->wsize : SMB3_DEFAULT_IOSIZE; |
3d621230 SF |
460 | wsize = min_t(unsigned int, wsize, server->max_write); |
461 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
462 | if (server->rdma) { | |
463 | if (server->sign) | |
f7950cb0 LL |
464 | /* |
465 | * Account for SMB2 data transfer packet header and | |
466 | * possible encryption header | |
467 | */ | |
3d621230 | 468 | wsize = min_t(unsigned int, |
f7950cb0 LL |
469 | wsize, |
470 | server->smbd_conn->max_fragmented_send_size - | |
471 | SMB2_READWRITE_PDU_HEADER_SIZE - | |
472 | sizeof(struct smb2_transform_hdr)); | |
3d621230 SF |
473 | else |
474 | wsize = min_t(unsigned int, | |
475 | wsize, server->smbd_conn->max_readwrite_size); | |
476 | } | |
477 | #endif | |
478 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
479 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
480 | ||
481 | return wsize; | |
482 | } | |
483 | ||
3a3bab50 | 484 | static unsigned int |
3fa1c6d1 | 485 | smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3a3bab50 PS |
486 | { |
487 | struct TCP_Server_Info *server = tcon->ses->server; | |
488 | unsigned int rsize; | |
489 | ||
490 | /* start with specified rsize, or default */ | |
3fa1c6d1 | 491 | rsize = ctx->rsize ? ctx->rsize : CIFS_DEFAULT_IOSIZE; |
3a3bab50 | 492 | rsize = min_t(unsigned int, rsize, server->max_read); |
bed9da02 PS |
493 | |
494 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
495 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 496 | |
3a3bab50 PS |
497 | return rsize; |
498 | } | |
499 | ||
3d621230 | 500 | static unsigned int |
3fa1c6d1 | 501 | smb3_negotiate_rsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3d621230 SF |
502 | { |
503 | struct TCP_Server_Info *server = tcon->ses->server; | |
504 | unsigned int rsize; | |
505 | ||
506 | /* start with specified rsize, or default */ | |
3fa1c6d1 | 507 | rsize = ctx->rsize ? ctx->rsize : SMB3_DEFAULT_IOSIZE; |
3d621230 SF |
508 | rsize = min_t(unsigned int, rsize, server->max_read); |
509 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
510 | if (server->rdma) { | |
511 | if (server->sign) | |
f7950cb0 LL |
512 | /* |
513 | * Account for SMB2 data transfer packet header and | |
514 | * possible encryption header | |
515 | */ | |
3d621230 | 516 | rsize = min_t(unsigned int, |
f7950cb0 LL |
517 | rsize, |
518 | server->smbd_conn->max_fragmented_recv_size - | |
519 | SMB2_READWRITE_PDU_HEADER_SIZE - | |
520 | sizeof(struct smb2_transform_hdr)); | |
3d621230 SF |
521 | else |
522 | rsize = min_t(unsigned int, | |
523 | rsize, server->smbd_conn->max_readwrite_size); | |
524 | } | |
525 | #endif | |
526 | ||
527 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
528 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
529 | ||
530 | return rsize; | |
531 | } | |
fe856be4 | 532 | |
2991b774 SP |
533 | /* |
534 | * compare two interfaces a and b | |
535 | * return 0 if everything matches. | |
536 | * return 1 if a is rdma capable, or rss capable, or has higher link speed | |
537 | * return -1 otherwise. | |
538 | */ | |
539 | static int | |
540 | iface_cmp(struct cifs_server_iface *a, struct cifs_server_iface *b) | |
541 | { | |
542 | int cmp_ret = 0; | |
543 | ||
544 | WARN_ON(!a || !b); | |
545 | if (a->rdma_capable == b->rdma_capable) { | |
546 | if (a->rss_capable == b->rss_capable) { | |
547 | if (a->speed == b->speed) { | |
548 | cmp_ret = cifs_ipaddr_cmp((struct sockaddr *) &a->sockaddr, | |
549 | (struct sockaddr *) &b->sockaddr); | |
550 | if (!cmp_ret) | |
551 | return 0; | |
552 | else if (cmp_ret > 0) | |
553 | return 1; | |
554 | else | |
555 | return -1; | |
556 | } else if (a->speed > b->speed) | |
557 | return 1; | |
558 | else | |
559 | return -1; | |
560 | } else if (a->rss_capable > b->rss_capable) | |
561 | return 1; | |
562 | else | |
563 | return -1; | |
564 | } else if (a->rdma_capable > b->rdma_capable) | |
565 | return 1; | |
566 | else | |
567 | return -1; | |
568 | } | |
569 | ||
fe856be4 AA |
570 | static int |
571 | parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf, | |
4659f01e | 572 | size_t buf_len, struct cifs_ses *ses, bool in_mount) |
fe856be4 AA |
573 | { |
574 | struct network_interface_info_ioctl_rsp *p; | |
575 | struct sockaddr_in *addr4; | |
576 | struct sockaddr_in6 *addr6; | |
577 | struct iface_info_ipv4 *p4; | |
578 | struct iface_info_ipv6 *p6; | |
aa45dadd SP |
579 | struct cifs_server_iface *info = NULL, *iface = NULL, *niface = NULL; |
580 | struct cifs_server_iface tmp_iface; | |
fe856be4 AA |
581 | ssize_t bytes_left; |
582 | size_t next = 0; | |
583 | int nb_iface = 0; | |
aa45dadd | 584 | int rc = 0, ret = 0; |
fe856be4 AA |
585 | |
586 | bytes_left = buf_len; | |
587 | p = buf; | |
fe856be4 | 588 | |
aa45dadd | 589 | spin_lock(&ses->iface_lock); |
072a28c8 SP |
590 | /* do not query too frequently, this time with lock held */ |
591 | if (ses->iface_last_update && | |
592 | time_before(jiffies, ses->iface_last_update + | |
593 | (SMB_INTERFACE_POLL_INTERVAL * HZ))) { | |
594 | spin_unlock(&ses->iface_lock); | |
595 | return 0; | |
596 | } | |
597 | ||
fe856be4 | 598 | /* |
09eeb072 | 599 | * Go through iface_list and mark them as inactive |
fe856be4 | 600 | */ |
aa45dadd | 601 | list_for_each_entry_safe(iface, niface, &ses->iface_list, |
09eeb072 | 602 | iface_head) |
aa45dadd | 603 | iface->is_active = 0; |
09eeb072 | 604 | |
aa45dadd | 605 | spin_unlock(&ses->iface_lock); |
fe856be4 | 606 | |
4659f01e SF |
607 | /* |
608 | * Samba server e.g. can return an empty interface list in some cases, | |
609 | * which would only be a problem if we were requesting multichannel | |
610 | */ | |
611 | if (bytes_left == 0) { | |
612 | /* avoid spamming logs every 10 minutes, so log only in mount */ | |
613 | if ((ses->chan_max > 1) && in_mount) | |
614 | cifs_dbg(VFS, | |
977bb653 SF |
615 | "multichannel not available\n" |
616 | "Empty network interface list returned by server %s\n", | |
4659f01e | 617 | ses->server->hostname); |
f591062b | 618 | rc = -EOPNOTSUPP; |
78e727e5 | 619 | ses->iface_last_update = jiffies; |
4659f01e SF |
620 | goto out; |
621 | } | |
622 | ||
cffe4870 | 623 | while (bytes_left >= (ssize_t)sizeof(*p)) { |
aa45dadd SP |
624 | memset(&tmp_iface, 0, sizeof(tmp_iface)); |
625 | tmp_iface.speed = le64_to_cpu(p->LinkSpeed); | |
626 | tmp_iface.rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE) ? 1 : 0; | |
627 | tmp_iface.rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE) ? 1 : 0; | |
fe856be4 AA |
628 | |
629 | switch (p->Family) { | |
630 | /* | |
631 | * The kernel and wire socket structures have the same | |
632 | * layout and use network byte order but make the | |
633 | * conversion explicit in case either one changes. | |
634 | */ | |
635 | case INTERNETWORK: | |
aa45dadd | 636 | addr4 = (struct sockaddr_in *)&tmp_iface.sockaddr; |
fe856be4 AA |
637 | p4 = (struct iface_info_ipv4 *)p->Buffer; |
638 | addr4->sin_family = AF_INET; | |
639 | memcpy(&addr4->sin_addr, &p4->IPv4Address, 4); | |
640 | ||
641 | /* [MS-SMB2] 2.2.32.5.1.1 Clients MUST ignore these */ | |
642 | addr4->sin_port = cpu_to_be16(CIFS_PORT); | |
643 | ||
644 | cifs_dbg(FYI, "%s: ipv4 %pI4\n", __func__, | |
645 | &addr4->sin_addr); | |
646 | break; | |
647 | case INTERNETWORKV6: | |
aa45dadd | 648 | addr6 = (struct sockaddr_in6 *)&tmp_iface.sockaddr; |
fe856be4 AA |
649 | p6 = (struct iface_info_ipv6 *)p->Buffer; |
650 | addr6->sin6_family = AF_INET6; | |
651 | memcpy(&addr6->sin6_addr, &p6->IPv6Address, 16); | |
652 | ||
653 | /* [MS-SMB2] 2.2.32.5.1.2 Clients MUST ignore these */ | |
654 | addr6->sin6_flowinfo = 0; | |
655 | addr6->sin6_scope_id = 0; | |
656 | addr6->sin6_port = cpu_to_be16(CIFS_PORT); | |
657 | ||
658 | cifs_dbg(FYI, "%s: ipv6 %pI6\n", __func__, | |
659 | &addr6->sin6_addr); | |
660 | break; | |
661 | default: | |
662 | cifs_dbg(VFS, | |
663 | "%s: skipping unsupported socket family\n", | |
664 | __func__); | |
665 | goto next_iface; | |
666 | } | |
667 | ||
aa45dadd SP |
668 | /* |
669 | * The iface_list is assumed to be sorted by speed. | |
670 | * Check if the new interface exists in that list. | |
671 | * NEVER change iface. it could be in use. | |
672 | * Add a new one instead | |
673 | */ | |
674 | spin_lock(&ses->iface_lock); | |
aa45dadd SP |
675 | list_for_each_entry_safe(iface, niface, &ses->iface_list, |
676 | iface_head) { | |
677 | ret = iface_cmp(iface, &tmp_iface); | |
678 | if (!ret) { | |
aa45dadd | 679 | iface->is_active = 1; |
aa45dadd SP |
680 | spin_unlock(&ses->iface_lock); |
681 | goto next_iface; | |
682 | } else if (ret < 0) { | |
683 | /* all remaining ifaces are slower */ | |
684 | kref_get(&iface->refcount); | |
685 | break; | |
686 | } | |
687 | } | |
688 | spin_unlock(&ses->iface_lock); | |
689 | ||
690 | /* no match. insert the entry in the list */ | |
691 | info = kmalloc(sizeof(struct cifs_server_iface), | |
692 | GFP_KERNEL); | |
693 | if (!info) { | |
694 | rc = -ENOMEM; | |
695 | goto out; | |
696 | } | |
697 | memcpy(info, &tmp_iface, sizeof(tmp_iface)); | |
698 | ||
699 | /* add this new entry to the list */ | |
700 | kref_init(&info->refcount); | |
701 | info->is_active = 1; | |
702 | ||
703 | cifs_dbg(FYI, "%s: adding iface %zu\n", __func__, ses->iface_count); | |
704 | cifs_dbg(FYI, "%s: speed %zu bps\n", __func__, info->speed); | |
705 | cifs_dbg(FYI, "%s: capabilities 0x%08x\n", __func__, | |
706 | le32_to_cpu(p->Capability)); | |
707 | ||
708 | spin_lock(&ses->iface_lock); | |
709 | if (!list_entry_is_head(iface, &ses->iface_list, iface_head)) { | |
710 | list_add_tail(&info->iface_head, &iface->iface_head); | |
711 | kref_put(&iface->refcount, release_iface); | |
712 | } else | |
713 | list_add_tail(&info->iface_head, &ses->iface_list); | |
aa45dadd SP |
714 | |
715 | ses->iface_count++; | |
096bbeec | 716 | spin_unlock(&ses->iface_lock); |
fe856be4 | 717 | next_iface: |
aa45dadd | 718 | nb_iface++; |
fe856be4 | 719 | next = le32_to_cpu(p->Next); |
aa45dadd SP |
720 | if (!next) { |
721 | bytes_left -= sizeof(*p); | |
fe856be4 | 722 | break; |
aa45dadd | 723 | } |
fe856be4 AA |
724 | p = (struct network_interface_info_ioctl_rsp *)((u8 *)p+next); |
725 | bytes_left -= next; | |
726 | } | |
727 | ||
aa45dadd SP |
728 | if (!nb_iface) { |
729 | cifs_dbg(VFS, "%s: malformed interface info\n", __func__); | |
fe856be4 AA |
730 | rc = -EINVAL; |
731 | goto out; | |
732 | } | |
733 | ||
aa45dadd SP |
734 | /* Azure rounds the buffer size up 8, to a 16 byte boundary */ |
735 | if ((bytes_left > 8) || p->Next) | |
736 | cifs_dbg(VFS, "%s: incomplete interface info\n", __func__); | |
fe856be4 | 737 | |
78e727e5 SP |
738 | ses->iface_last_update = jiffies; |
739 | ||
aa45dadd | 740 | out: |
09eeb072 SP |
741 | /* |
742 | * Go through the list again and put the inactive entries | |
743 | */ | |
744 | spin_lock(&ses->iface_lock); | |
745 | list_for_each_entry_safe(iface, niface, &ses->iface_list, | |
746 | iface_head) { | |
747 | if (!iface->is_active) { | |
748 | list_del(&iface->iface_head); | |
749 | kref_put(&iface->refcount, release_iface); | |
750 | ses->iface_count--; | |
751 | } | |
752 | } | |
753 | spin_unlock(&ses->iface_lock); | |
754 | ||
aa45dadd | 755 | return rc; |
35adffed | 756 | } |
fe856be4 | 757 | |
6e1c1c08 | 758 | int |
4659f01e | 759 | SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount) |
c481e9fe SF |
760 | { |
761 | int rc; | |
762 | unsigned int ret_data_len = 0; | |
fe856be4 | 763 | struct network_interface_info_ioctl_rsp *out_buf = NULL; |
fe856be4 | 764 | struct cifs_ses *ses = tcon->ses; |
fa1d0508 | 765 | struct TCP_Server_Info *pserver; |
c481e9fe | 766 | |
072a28c8 SP |
767 | /* do not query too frequently */ |
768 | if (ses->iface_last_update && | |
769 | time_before(jiffies, ses->iface_last_update + | |
770 | (SMB_INTERFACE_POLL_INTERVAL * HZ))) | |
771 | return 0; | |
772 | ||
c481e9fe | 773 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, |
400d0ad6 | 774 | FSCTL_QUERY_NETWORK_INTERFACE_INFO, |
c481e9fe | 775 | NULL /* no data input */, 0 /* no data input */, |
153322f7 | 776 | CIFSMaxBufSize, (char **)&out_buf, &ret_data_len); |
c3ed4402 SF |
777 | if (rc == -EOPNOTSUPP) { |
778 | cifs_dbg(FYI, | |
779 | "server does not support query network interfaces\n"); | |
896cd316 | 780 | ret_data_len = 0; |
c3ed4402 | 781 | } else if (rc != 0) { |
3175eb9b | 782 | cifs_tcon_dbg(VFS, "error %d on ioctl to get interface list\n", rc); |
fe856be4 | 783 | goto out; |
9ffc5412 | 784 | } |
fe856be4 | 785 | |
4659f01e | 786 | rc = parse_server_interfaces(out_buf, ret_data_len, ses, in_mount); |
fe856be4 AA |
787 | if (rc) |
788 | goto out; | |
789 | ||
fa1d0508 | 790 | /* check if iface is still active */ |
7257bcf3 | 791 | spin_lock(&ses->chan_lock); |
fa1d0508 | 792 | pserver = ses->chans[0].server; |
7257bcf3 SP |
793 | if (pserver && !cifs_chan_is_iface_active(ses, pserver)) { |
794 | spin_unlock(&ses->chan_lock); | |
fa1d0508 | 795 | cifs_chan_update_iface(ses, pserver); |
7257bcf3 SP |
796 | spin_lock(&ses->chan_lock); |
797 | } | |
798 | spin_unlock(&ses->chan_lock); | |
fa1d0508 | 799 | |
fe856be4 | 800 | out: |
24df1483 | 801 | kfree(out_buf); |
c481e9fe SF |
802 | return rc; |
803 | } | |
c481e9fe | 804 | |
af6a12ea | 805 | static void |
0f060936 AG |
806 | smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon, |
807 | struct cifs_sb_info *cifs_sb) | |
af6a12ea SF |
808 | { |
809 | int rc; | |
810 | __le16 srch_path = 0; /* Null - open root of share */ | |
811 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
812 | struct cifs_open_parms oparms; | |
813 | struct cifs_fid fid; | |
9e81e8ff | 814 | struct cached_fid *cfid = NULL; |
af6a12ea | 815 | |
d447e794 VL |
816 | oparms = (struct cifs_open_parms) { |
817 | .tcon = tcon, | |
fddc6ccc | 818 | .path = "", |
d447e794 VL |
819 | .desired_access = FILE_READ_ATTRIBUTES, |
820 | .disposition = FILE_OPEN, | |
821 | .create_options = cifs_create_options(cifs_sb, 0), | |
822 | .fid = &fid, | |
823 | }; | |
af6a12ea | 824 | |
7eb59a98 | 825 | rc = open_cached_dir(xid, tcon, "", cifs_sb, false, &cfid); |
4df3d976 | 826 | if (rc == 0) |
a63ec83c | 827 | memcpy(&fid, &cfid->fid, sizeof(struct cifs_fid)); |
4df3d976 | 828 | else |
9d874c36 | 829 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, |
69dda305 | 830 | NULL, NULL); |
af6a12ea SF |
831 | if (rc) |
832 | return; | |
833 | ||
4659f01e | 834 | SMB3_request_interfaces(xid, tcon, true /* called during mount */); |
c481e9fe | 835 | |
af6a12ea SF |
836 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
837 | FS_ATTRIBUTE_INFORMATION); | |
838 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
839 | FS_DEVICE_INFORMATION); | |
21ba3845 SF |
840 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
841 | FS_VOLUME_INFORMATION); | |
af6a12ea SF |
842 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
843 | FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */ | |
4df3d976 | 844 | if (cfid == NULL) |
3d4ef9a1 | 845 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
9da6ec77 | 846 | else |
45c0f1aa | 847 | close_cached_dir(cfid); |
af6a12ea SF |
848 | } |
849 | ||
34f62640 | 850 | static void |
0f060936 AG |
851 | smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon, |
852 | struct cifs_sb_info *cifs_sb) | |
34f62640 SF |
853 | { |
854 | int rc; | |
855 | __le16 srch_path = 0; /* Null - open root of share */ | |
856 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
857 | struct cifs_open_parms oparms; | |
858 | struct cifs_fid fid; | |
859 | ||
de036dca VL |
860 | oparms = (struct cifs_open_parms) { |
861 | .tcon = tcon, | |
fddc6ccc | 862 | .path = "", |
de036dca VL |
863 | .desired_access = FILE_READ_ATTRIBUTES, |
864 | .disposition = FILE_OPEN, | |
865 | .create_options = cifs_create_options(cifs_sb, 0), | |
866 | .fid = &fid, | |
867 | }; | |
34f62640 | 868 | |
69dda305 AA |
869 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, |
870 | NULL, NULL); | |
34f62640 SF |
871 | if (rc) |
872 | return; | |
873 | ||
2167114c SF |
874 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
875 | FS_ATTRIBUTE_INFORMATION); | |
876 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
877 | FS_DEVICE_INFORMATION); | |
34f62640 | 878 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
34f62640 SF |
879 | } |
880 | ||
2503a0db PS |
881 | static int |
882 | smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, | |
883 | struct cifs_sb_info *cifs_sb, const char *full_path) | |
884 | { | |
2503a0db | 885 | __le16 *utf16_path; |
2e44b288 | 886 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
c877ce47 | 887 | int err_buftype = CIFS_NO_BUFFER; |
064f6047 | 888 | struct cifs_open_parms oparms; |
c877ce47 | 889 | struct kvec err_iov = {}; |
064f6047 | 890 | struct cifs_fid fid; |
7eb59a98 | 891 | struct cached_fid *cfid; |
b9ee2e30 PA |
892 | bool islink; |
893 | int rc, rc2; | |
2503a0db | 894 | |
7eb59a98 RS |
895 | rc = open_cached_dir(xid, tcon, full_path, cifs_sb, true, &cfid); |
896 | if (!rc) { | |
ebe98f14 | 897 | if (cfid->has_lease) { |
7eb59a98 RS |
898 | close_cached_dir(cfid); |
899 | return 0; | |
900 | } | |
901 | close_cached_dir(cfid); | |
902 | } | |
3d4ef9a1 | 903 | |
2503a0db PS |
904 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); |
905 | if (!utf16_path) | |
906 | return -ENOMEM; | |
907 | ||
de036dca VL |
908 | oparms = (struct cifs_open_parms) { |
909 | .tcon = tcon, | |
fddc6ccc | 910 | .path = full_path, |
de036dca VL |
911 | .desired_access = FILE_READ_ATTRIBUTES, |
912 | .disposition = FILE_OPEN, | |
913 | .create_options = cifs_create_options(cifs_sb, 0), | |
914 | .fid = &fid, | |
915 | }; | |
064f6047 | 916 | |
c877ce47 PA |
917 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, |
918 | &err_iov, &err_buftype); | |
2503a0db | 919 | if (rc) { |
c877ce47 PA |
920 | struct smb2_hdr *hdr = err_iov.iov_base; |
921 | ||
922 | if (unlikely(!hdr || err_buftype == CIFS_NO_BUFFER)) | |
923 | goto out; | |
b9ee2e30 PA |
924 | |
925 | if (rc != -EREMOTE && hdr->Status == STATUS_OBJECT_NAME_INVALID) { | |
926 | rc2 = cifs_inval_name_dfs_link_error(xid, tcon, cifs_sb, | |
927 | full_path, &islink); | |
928 | if (rc2) { | |
929 | rc = rc2; | |
930 | goto out; | |
931 | } | |
932 | if (islink) | |
933 | rc = -EREMOTE; | |
934 | } | |
c877ce47 PA |
935 | if (rc == -EREMOTE && IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) && cifs_sb && |
936 | (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS)) | |
937 | rc = -EOPNOTSUPP; | |
938 | goto out; | |
2503a0db PS |
939 | } |
940 | ||
064f6047 | 941 | rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
c877ce47 PA |
942 | |
943 | out: | |
944 | free_rsp_buf(err_buftype, err_iov.iov_base); | |
2503a0db PS |
945 | kfree(utf16_path); |
946 | return rc; | |
947 | } | |
948 | ||
76894f3e PA |
949 | static int smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, |
950 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
951 | u64 *uniqueid, struct cifs_open_info_data *data) | |
be4cb9e3 | 952 | { |
76894f3e | 953 | *uniqueid = le64_to_cpu(data->fi.IndexNumber); |
be4cb9e3 PS |
954 | return 0; |
955 | } | |
956 | ||
76894f3e PA |
957 | static int smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, |
958 | struct cifsFileInfo *cfile, struct cifs_open_info_data *data) | |
b7546bc5 | 959 | { |
76894f3e | 960 | struct cifs_fid *fid = &cfile->fid; |
b7546bc5 | 961 | |
76894f3e PA |
962 | if (cfile->symlink_target) { |
963 | data->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL); | |
964 | if (!data->symlink_target) | |
965 | return -ENOMEM; | |
966 | } | |
967 | return SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid, &data->fi); | |
b7546bc5 PS |
968 | } |
969 | ||
1368f155 | 970 | #ifdef CONFIG_CIFS_XATTR |
95907fea RS |
971 | static ssize_t |
972 | move_smb2_ea_to_cifs(char *dst, size_t dst_size, | |
973 | struct smb2_file_full_ea_info *src, size_t src_size, | |
974 | const unsigned char *ea_name) | |
975 | { | |
976 | int rc = 0; | |
977 | unsigned int ea_name_len = ea_name ? strlen(ea_name) : 0; | |
978 | char *name, *value; | |
0c5d6cb6 | 979 | size_t buf_size = dst_size; |
95907fea RS |
980 | size_t name_len, value_len, user_name_len; |
981 | ||
982 | while (src_size > 0) { | |
95907fea | 983 | name_len = (size_t)src->ea_name_length; |
95907fea RS |
984 | value_len = (size_t)le16_to_cpu(src->ea_value_length); |
985 | ||
a205d500 | 986 | if (name_len == 0) |
95907fea | 987 | break; |
95907fea RS |
988 | |
989 | if (src_size < 8 + name_len + 1 + value_len) { | |
990 | cifs_dbg(FYI, "EA entry goes beyond length of list\n"); | |
991 | rc = -EIO; | |
992 | goto out; | |
993 | } | |
994 | ||
5fa2cffb SF |
995 | name = &src->ea_data[0]; |
996 | value = &src->ea_data[src->ea_name_length + 1]; | |
997 | ||
95907fea RS |
998 | if (ea_name) { |
999 | if (ea_name_len == name_len && | |
1000 | memcmp(ea_name, name, name_len) == 0) { | |
1001 | rc = value_len; | |
1002 | if (dst_size == 0) | |
1003 | goto out; | |
1004 | if (dst_size < value_len) { | |
1005 | rc = -ERANGE; | |
1006 | goto out; | |
1007 | } | |
1008 | memcpy(dst, value, value_len); | |
1009 | goto out; | |
1010 | } | |
1011 | } else { | |
1012 | /* 'user.' plus a terminating null */ | |
1013 | user_name_len = 5 + 1 + name_len; | |
1014 | ||
0c5d6cb6 RS |
1015 | if (buf_size == 0) { |
1016 | /* skip copy - calc size only */ | |
1017 | rc += user_name_len; | |
1018 | } else if (dst_size >= user_name_len) { | |
95907fea RS |
1019 | dst_size -= user_name_len; |
1020 | memcpy(dst, "user.", 5); | |
1021 | dst += 5; | |
1022 | memcpy(dst, src->ea_data, name_len); | |
1023 | dst += name_len; | |
1024 | *dst = 0; | |
1025 | ++dst; | |
0c5d6cb6 | 1026 | rc += user_name_len; |
95907fea RS |
1027 | } else { |
1028 | /* stop before overrun buffer */ | |
1029 | rc = -ERANGE; | |
1030 | break; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | if (!src->next_entry_offset) | |
1035 | break; | |
1036 | ||
1037 | if (src_size < le32_to_cpu(src->next_entry_offset)) { | |
1038 | /* stop before overrun buffer */ | |
1039 | rc = -ERANGE; | |
1040 | break; | |
1041 | } | |
1042 | src_size -= le32_to_cpu(src->next_entry_offset); | |
1043 | src = (void *)((char *)src + | |
1044 | le32_to_cpu(src->next_entry_offset)); | |
1045 | } | |
1046 | ||
1047 | /* didn't find the named attribute */ | |
1048 | if (ea_name) | |
1049 | rc = -ENODATA; | |
1050 | ||
1051 | out: | |
1052 | return (ssize_t)rc; | |
1053 | } | |
1054 | ||
1055 | static ssize_t | |
1056 | smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon, | |
1057 | const unsigned char *path, const unsigned char *ea_name, | |
1058 | char *ea_data, size_t buf_size, | |
1059 | struct cifs_sb_info *cifs_sb) | |
1060 | { | |
1061 | int rc; | |
f9793b6f RS |
1062 | struct kvec rsp_iov = {NULL, 0}; |
1063 | int buftype = CIFS_NO_BUFFER; | |
1064 | struct smb2_query_info_rsp *rsp; | |
1065 | struct smb2_file_full_ea_info *info = NULL; | |
95907fea | 1066 | |
5e0c969e | 1067 | rc = smb2_query_info_compound(xid, tcon, path, |
f9793b6f RS |
1068 | FILE_READ_EA, |
1069 | FILE_FULL_EA_INFORMATION, | |
1070 | SMB2_O_INFO_FILE, | |
c4627e66 RS |
1071 | CIFSMaxBufSize - |
1072 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
1073 | MAX_SMB2_CLOSE_RESPONSE_SIZE, | |
f9793b6f | 1074 | &rsp_iov, &buftype, cifs_sb); |
95907fea | 1075 | if (rc) { |
f9793b6f RS |
1076 | /* |
1077 | * If ea_name is NULL (listxattr) and there are no EAs, | |
1078 | * return 0 as it's not an error. Otherwise, the specified | |
1079 | * ea_name was not found. | |
1080 | */ | |
1081 | if (!ea_name && rc == -ENODATA) | |
1082 | rc = 0; | |
1083 | goto qeas_exit; | |
95907fea RS |
1084 | } |
1085 | ||
f9793b6f RS |
1086 | rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; |
1087 | rc = smb2_validate_iov(le16_to_cpu(rsp->OutputBufferOffset), | |
1088 | le32_to_cpu(rsp->OutputBufferLength), | |
1089 | &rsp_iov, | |
1090 | sizeof(struct smb2_file_full_ea_info)); | |
1091 | if (rc) | |
1092 | goto qeas_exit; | |
95907fea | 1093 | |
f9793b6f RS |
1094 | info = (struct smb2_file_full_ea_info *)( |
1095 | le16_to_cpu(rsp->OutputBufferOffset) + (char *)rsp); | |
1096 | rc = move_smb2_ea_to_cifs(ea_data, buf_size, info, | |
1097 | le32_to_cpu(rsp->OutputBufferLength), ea_name); | |
95907fea | 1098 | |
f9793b6f | 1099 | qeas_exit: |
f9793b6f | 1100 | free_rsp_buf(buftype, rsp_iov.iov_base); |
95907fea RS |
1101 | return rc; |
1102 | } | |
1103 | ||
5517554e RS |
1104 | static int |
1105 | smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, | |
1106 | const char *path, const char *ea_name, const void *ea_value, | |
1107 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
1108 | struct cifs_sb_info *cifs_sb) | |
1109 | { | |
f4e5ceb6 | 1110 | struct smb2_compound_vars *vars; |
0967e545 | 1111 | struct cifs_ses *ses = tcon->ses; |
4f1fffa2 | 1112 | struct TCP_Server_Info *server; |
f4e5ceb6 PA |
1113 | struct smb_rqst *rqst; |
1114 | struct kvec *rsp_iov; | |
0967e545 | 1115 | __le16 *utf16_path = NULL; |
5517554e | 1116 | int ea_name_len = strlen(ea_name); |
04ad69c3 | 1117 | int flags = CIFS_CP_CREATE_CLOSE_OP; |
5517554e | 1118 | int len; |
0967e545 | 1119 | int resp_buftype[3]; |
0967e545 RS |
1120 | struct cifs_open_parms oparms; |
1121 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1122 | struct cifs_fid fid; | |
0967e545 RS |
1123 | unsigned int size[1]; |
1124 | void *data[1]; | |
1125 | struct smb2_file_full_ea_info *ea = NULL; | |
85db6b7a RS |
1126 | struct smb2_query_info_rsp *rsp; |
1127 | int rc, used_len = 0; | |
4f1fffa2 SP |
1128 | int retries = 0, cur_sleep = 1; |
1129 | ||
1130 | replay_again: | |
1131 | /* reinitialize for possible replay */ | |
1132 | flags = CIFS_CP_CREATE_CLOSE_OP; | |
1133 | oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1134 | server = cifs_pick_channel(ses); | |
0967e545 RS |
1135 | |
1136 | if (smb3_encryption_required(tcon)) | |
1137 | flags |= CIFS_TRANSFORM_REQ; | |
5517554e RS |
1138 | |
1139 | if (ea_name_len > 255) | |
1140 | return -EINVAL; | |
1141 | ||
1142 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1143 | if (!utf16_path) | |
1144 | return -ENOMEM; | |
1145 | ||
0967e545 | 1146 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; |
f4e5ceb6 PA |
1147 | vars = kzalloc(sizeof(*vars), GFP_KERNEL); |
1148 | if (!vars) { | |
1149 | rc = -ENOMEM; | |
1150 | goto out_free_path; | |
1151 | } | |
1152 | rqst = vars->rqst; | |
1153 | rsp_iov = vars->rsp_iov; | |
0967e545 | 1154 | |
21094641 RS |
1155 | if (ses->server->ops->query_all_EAs) { |
1156 | if (!ea_value) { | |
1157 | rc = ses->server->ops->query_all_EAs(xid, tcon, path, | |
1158 | ea_name, NULL, 0, | |
1159 | cifs_sb); | |
1160 | if (rc == -ENODATA) | |
1161 | goto sea_exit; | |
85db6b7a RS |
1162 | } else { |
1163 | /* If we are adding a attribute we should first check | |
1164 | * if there will be enough space available to store | |
1165 | * the new EA. If not we should not add it since we | |
1166 | * would not be able to even read the EAs back. | |
1167 | */ | |
5e0c969e | 1168 | rc = smb2_query_info_compound(xid, tcon, path, |
85db6b7a RS |
1169 | FILE_READ_EA, |
1170 | FILE_FULL_EA_INFORMATION, | |
1171 | SMB2_O_INFO_FILE, | |
1172 | CIFSMaxBufSize - | |
1173 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
1174 | MAX_SMB2_CLOSE_RESPONSE_SIZE, | |
1175 | &rsp_iov[1], &resp_buftype[1], cifs_sb); | |
1176 | if (rc == 0) { | |
1177 | rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base; | |
1178 | used_len = le32_to_cpu(rsp->OutputBufferLength); | |
1179 | } | |
1180 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1181 | resp_buftype[1] = CIFS_NO_BUFFER; | |
1182 | memset(&rsp_iov[1], 0, sizeof(rsp_iov[1])); | |
1183 | rc = 0; | |
1184 | ||
1185 | /* Use a fudge factor of 256 bytes in case we collide | |
1186 | * with a different set_EAs command. | |
1187 | */ | |
ebc3d4e4 | 1188 | if (CIFSMaxBufSize - MAX_SMB2_CREATE_RESPONSE_SIZE - |
85db6b7a RS |
1189 | MAX_SMB2_CLOSE_RESPONSE_SIZE - 256 < |
1190 | used_len + ea_name_len + ea_value_len + 1) { | |
1191 | rc = -ENOSPC; | |
1192 | goto sea_exit; | |
1193 | } | |
21094641 RS |
1194 | } |
1195 | } | |
1196 | ||
0967e545 | 1197 | /* Open */ |
f4e5ceb6 | 1198 | rqst[0].rq_iov = vars->open_iov; |
0967e545 RS |
1199 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; |
1200 | ||
de036dca VL |
1201 | oparms = (struct cifs_open_parms) { |
1202 | .tcon = tcon, | |
fddc6ccc | 1203 | .path = path, |
de036dca VL |
1204 | .desired_access = FILE_WRITE_EA, |
1205 | .disposition = FILE_OPEN, | |
1206 | .create_options = cifs_create_options(cifs_sb, 0), | |
1207 | .fid = &fid, | |
79520587 | 1208 | .replay = !!(retries), |
de036dca | 1209 | }; |
5517554e | 1210 | |
352d96f3 AA |
1211 | rc = SMB2_open_init(tcon, server, |
1212 | &rqst[0], &oplock, &oparms, utf16_path); | |
0967e545 RS |
1213 | if (rc) |
1214 | goto sea_exit; | |
e77fe73c | 1215 | smb2_set_next_command(tcon, &rqst[0]); |
0967e545 RS |
1216 | |
1217 | ||
1218 | /* Set Info */ | |
f4e5ceb6 | 1219 | rqst[1].rq_iov = vars->si_iov; |
0967e545 | 1220 | rqst[1].rq_nvec = 1; |
5517554e | 1221 | |
64b7f674 | 1222 | len = sizeof(*ea) + ea_name_len + ea_value_len + 1; |
5517554e RS |
1223 | ea = kzalloc(len, GFP_KERNEL); |
1224 | if (ea == NULL) { | |
0967e545 RS |
1225 | rc = -ENOMEM; |
1226 | goto sea_exit; | |
5517554e RS |
1227 | } |
1228 | ||
1229 | ea->ea_name_length = ea_name_len; | |
1230 | ea->ea_value_length = cpu_to_le16(ea_value_len); | |
1231 | memcpy(ea->ea_data, ea_name, ea_name_len + 1); | |
1232 | memcpy(ea->ea_data + ea_name_len + 1, ea_value, ea_value_len); | |
1233 | ||
0967e545 RS |
1234 | size[0] = len; |
1235 | data[0] = ea; | |
1236 | ||
352d96f3 AA |
1237 | rc = SMB2_set_info_init(tcon, server, |
1238 | &rqst[1], COMPOUND_FID, | |
0967e545 RS |
1239 | COMPOUND_FID, current->tgid, |
1240 | FILE_FULL_EA_INFORMATION, | |
1241 | SMB2_O_INFO_FILE, 0, data, size); | |
a51e5d29 AB |
1242 | if (rc) |
1243 | goto sea_exit; | |
e77fe73c | 1244 | smb2_set_next_command(tcon, &rqst[1]); |
0967e545 | 1245 | smb2_set_related(&rqst[1]); |
6aa0c114 | 1246 | |
0967e545 | 1247 | /* Close */ |
f4e5ceb6 | 1248 | rqst[2].rq_iov = &vars->close_iov; |
0967e545 | 1249 | rqst[2].rq_nvec = 1; |
352d96f3 AA |
1250 | rc = SMB2_close_init(tcon, server, |
1251 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
d520de6c AB |
1252 | if (rc) |
1253 | goto sea_exit; | |
0967e545 RS |
1254 | smb2_set_related(&rqst[2]); |
1255 | ||
4f1fffa2 SP |
1256 | if (retries) { |
1257 | smb2_set_replay(server, &rqst[0]); | |
1258 | smb2_set_replay(server, &rqst[1]); | |
1259 | smb2_set_replay(server, &rqst[2]); | |
1260 | } | |
1261 | ||
352d96f3 AA |
1262 | rc = compound_send_recv(xid, ses, server, |
1263 | flags, 3, rqst, | |
0967e545 | 1264 | resp_buftype, rsp_iov); |
d2f15428 | 1265 | /* no need to bump num_remote_opens because handle immediately closed */ |
0967e545 RS |
1266 | |
1267 | sea_exit: | |
1268 | kfree(ea); | |
0967e545 RS |
1269 | SMB2_open_free(&rqst[0]); |
1270 | SMB2_set_info_free(&rqst[1]); | |
1271 | SMB2_close_free(&rqst[2]); | |
1272 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
1273 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1274 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
f4e5ceb6 PA |
1275 | kfree(vars); |
1276 | out_free_path: | |
1277 | kfree(utf16_path); | |
4f1fffa2 SP |
1278 | |
1279 | if (is_replayable_error(rc) && | |
1280 | smb2_should_replay(tcon, &retries, &cur_sleep)) | |
1281 | goto replay_again; | |
1282 | ||
5517554e RS |
1283 | return rc; |
1284 | } | |
1368f155 | 1285 | #endif |
5517554e | 1286 | |
9094fad1 PS |
1287 | static bool |
1288 | smb2_can_echo(struct TCP_Server_Info *server) | |
1289 | { | |
1290 | return server->echoes; | |
1291 | } | |
1292 | ||
d60622eb PS |
1293 | static void |
1294 | smb2_clear_stats(struct cifs_tcon *tcon) | |
1295 | { | |
d60622eb | 1296 | int i; |
a205d500 | 1297 | |
d60622eb PS |
1298 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { |
1299 | atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0); | |
1300 | atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0); | |
1301 | } | |
d60622eb PS |
1302 | } |
1303 | ||
769ee6a4 SF |
1304 | static void |
1305 | smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon) | |
1306 | { | |
1307 | seq_puts(m, "\n\tShare Capabilities:"); | |
1308 | if (tcon->capabilities & SMB2_SHARE_CAP_DFS) | |
1309 | seq_puts(m, " DFS,"); | |
1310 | if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY) | |
1311 | seq_puts(m, " CONTINUOUS AVAILABILITY,"); | |
1312 | if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT) | |
1313 | seq_puts(m, " SCALEOUT,"); | |
1314 | if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER) | |
1315 | seq_puts(m, " CLUSTER,"); | |
1316 | if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC) | |
1317 | seq_puts(m, " ASYMMETRIC,"); | |
1318 | if (tcon->capabilities == 0) | |
1319 | seq_puts(m, " None"); | |
af6a12ea SF |
1320 | if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE) |
1321 | seq_puts(m, " Aligned,"); | |
1322 | if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE) | |
1323 | seq_puts(m, " Partition Aligned,"); | |
1324 | if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY) | |
1325 | seq_puts(m, " SSD,"); | |
1326 | if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED) | |
1327 | seq_puts(m, " TRIM-support,"); | |
1328 | ||
769ee6a4 | 1329 | seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags); |
e0386e44 | 1330 | seq_printf(m, "\n\ttid: 0x%x", tcon->tid); |
af6a12ea SF |
1331 | if (tcon->perf_sector_size) |
1332 | seq_printf(m, "\tOptimal sector size: 0x%x", | |
1333 | tcon->perf_sector_size); | |
e0386e44 | 1334 | seq_printf(m, "\tMaximal Access: 0x%x", tcon->maximal_access); |
769ee6a4 SF |
1335 | } |
1336 | ||
d60622eb PS |
1337 | static void |
1338 | smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon) | |
1339 | { | |
d60622eb PS |
1340 | atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent; |
1341 | atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed; | |
1995d28f SF |
1342 | |
1343 | /* | |
1344 | * Can't display SMB2_NEGOTIATE, SESSION_SETUP, LOGOFF, CANCEL and ECHO | |
1345 | * totals (requests sent) since those SMBs are per-session not per tcon | |
1346 | */ | |
52ce1ac4 SF |
1347 | seq_printf(m, "\nBytes read: %llu Bytes written: %llu", |
1348 | (long long)(tcon->bytes_read), | |
1349 | (long long)(tcon->bytes_written)); | |
fae8044c SF |
1350 | seq_printf(m, "\nOpen files: %d total (local), %d open on server", |
1351 | atomic_read(&tcon->num_local_opens), | |
1352 | atomic_read(&tcon->num_remote_opens)); | |
1995d28f | 1353 | seq_printf(m, "\nTreeConnects: %d total %d failed", |
d60622eb PS |
1354 | atomic_read(&sent[SMB2_TREE_CONNECT_HE]), |
1355 | atomic_read(&failed[SMB2_TREE_CONNECT_HE])); | |
1995d28f | 1356 | seq_printf(m, "\nTreeDisconnects: %d total %d failed", |
d60622eb PS |
1357 | atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]), |
1358 | atomic_read(&failed[SMB2_TREE_DISCONNECT_HE])); | |
1995d28f | 1359 | seq_printf(m, "\nCreates: %d total %d failed", |
d60622eb PS |
1360 | atomic_read(&sent[SMB2_CREATE_HE]), |
1361 | atomic_read(&failed[SMB2_CREATE_HE])); | |
1995d28f | 1362 | seq_printf(m, "\nCloses: %d total %d failed", |
d60622eb PS |
1363 | atomic_read(&sent[SMB2_CLOSE_HE]), |
1364 | atomic_read(&failed[SMB2_CLOSE_HE])); | |
1995d28f | 1365 | seq_printf(m, "\nFlushes: %d total %d failed", |
d60622eb PS |
1366 | atomic_read(&sent[SMB2_FLUSH_HE]), |
1367 | atomic_read(&failed[SMB2_FLUSH_HE])); | |
1995d28f | 1368 | seq_printf(m, "\nReads: %d total %d failed", |
d60622eb PS |
1369 | atomic_read(&sent[SMB2_READ_HE]), |
1370 | atomic_read(&failed[SMB2_READ_HE])); | |
1995d28f | 1371 | seq_printf(m, "\nWrites: %d total %d failed", |
d60622eb PS |
1372 | atomic_read(&sent[SMB2_WRITE_HE]), |
1373 | atomic_read(&failed[SMB2_WRITE_HE])); | |
1995d28f | 1374 | seq_printf(m, "\nLocks: %d total %d failed", |
d60622eb PS |
1375 | atomic_read(&sent[SMB2_LOCK_HE]), |
1376 | atomic_read(&failed[SMB2_LOCK_HE])); | |
1995d28f | 1377 | seq_printf(m, "\nIOCTLs: %d total %d failed", |
d60622eb PS |
1378 | atomic_read(&sent[SMB2_IOCTL_HE]), |
1379 | atomic_read(&failed[SMB2_IOCTL_HE])); | |
1995d28f | 1380 | seq_printf(m, "\nQueryDirectories: %d total %d failed", |
d60622eb PS |
1381 | atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]), |
1382 | atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE])); | |
1995d28f | 1383 | seq_printf(m, "\nChangeNotifies: %d total %d failed", |
d60622eb PS |
1384 | atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]), |
1385 | atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE])); | |
1995d28f | 1386 | seq_printf(m, "\nQueryInfos: %d total %d failed", |
d60622eb PS |
1387 | atomic_read(&sent[SMB2_QUERY_INFO_HE]), |
1388 | atomic_read(&failed[SMB2_QUERY_INFO_HE])); | |
1995d28f | 1389 | seq_printf(m, "\nSetInfos: %d total %d failed", |
d60622eb PS |
1390 | atomic_read(&sent[SMB2_SET_INFO_HE]), |
1391 | atomic_read(&failed[SMB2_SET_INFO_HE])); | |
1392 | seq_printf(m, "\nOplockBreaks: %d sent %d failed", | |
1393 | atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]), | |
1394 | atomic_read(&failed[SMB2_OPLOCK_BREAK_HE])); | |
d60622eb PS |
1395 | } |
1396 | ||
f0df737e PS |
1397 | static void |
1398 | smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock) | |
1399 | { | |
2b0143b5 | 1400 | struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry)); |
53ef1016 PS |
1401 | struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server; |
1402 | ||
f0df737e PS |
1403 | cfile->fid.persistent_fid = fid->persistent_fid; |
1404 | cfile->fid.volatile_fid = fid->volatile_fid; | |
86f740f2 | 1405 | cfile->fid.access = fid->access; |
dfe33f9a SF |
1406 | #ifdef CONFIG_CIFS_DEBUG2 |
1407 | cfile->fid.mid = fid->mid; | |
1408 | #endif /* CIFS_DEBUG2 */ | |
42873b0a PS |
1409 | server->ops->set_oplock_level(cinode, oplock, fid->epoch, |
1410 | &fid->purge_cache); | |
18cceb6a | 1411 | cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode); |
94f87371 | 1412 | memcpy(cfile->fid.create_guid, fid->create_guid, 16); |
f0df737e PS |
1413 | } |
1414 | ||
173217bd | 1415 | static int |
f0df737e PS |
1416 | smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon, |
1417 | struct cifs_fid *fid) | |
1418 | { | |
173217bd | 1419 | return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
f0df737e PS |
1420 | } |
1421 | ||
173217bd | 1422 | static int |
43f8a6a7 SF |
1423 | smb2_close_getattr(const unsigned int xid, struct cifs_tcon *tcon, |
1424 | struct cifsFileInfo *cfile) | |
1425 | { | |
1426 | struct smb2_file_network_open_info file_inf; | |
1427 | struct inode *inode; | |
1428 | int rc; | |
1429 | ||
1430 | rc = __SMB2_close(xid, tcon, cfile->fid.persistent_fid, | |
1431 | cfile->fid.volatile_fid, &file_inf); | |
1432 | if (rc) | |
173217bd | 1433 | return rc; |
43f8a6a7 SF |
1434 | |
1435 | inode = d_inode(cfile->dentry); | |
1436 | ||
1437 | spin_lock(&inode->i_lock); | |
1438 | CIFS_I(inode)->time = jiffies; | |
1439 | ||
1440 | /* Creation time should not need to be updated on close */ | |
1441 | if (file_inf.LastWriteTime) | |
8f22ce70 JL |
1442 | inode_set_mtime_to_ts(inode, |
1443 | cifs_NTtimeToUnix(file_inf.LastWriteTime)); | |
43f8a6a7 | 1444 | if (file_inf.ChangeTime) |
94487653 JL |
1445 | inode_set_ctime_to_ts(inode, |
1446 | cifs_NTtimeToUnix(file_inf.ChangeTime)); | |
43f8a6a7 | 1447 | if (file_inf.LastAccessTime) |
8f22ce70 JL |
1448 | inode_set_atime_to_ts(inode, |
1449 | cifs_NTtimeToUnix(file_inf.LastAccessTime)); | |
43f8a6a7 SF |
1450 | |
1451 | /* | |
1452 | * i_blocks is not related to (i_size / i_blksize), | |
1453 | * but instead 512 byte (2**9) size is required for | |
1454 | * calculating num blocks. | |
1455 | */ | |
1456 | if (le64_to_cpu(file_inf.AllocationSize) > 4096) | |
1457 | inode->i_blocks = | |
1458 | (512 - 1 + le64_to_cpu(file_inf.AllocationSize)) >> 9; | |
1459 | ||
1460 | /* End of file and Attributes should not have to be updated on close */ | |
1461 | spin_unlock(&inode->i_lock); | |
173217bd | 1462 | return rc; |
43f8a6a7 SF |
1463 | } |
1464 | ||
41c1358e SF |
1465 | static int |
1466 | SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon, | |
1467 | u64 persistent_fid, u64 volatile_fid, | |
1468 | struct copychunk_ioctl *pcchunk) | |
1469 | { | |
1470 | int rc; | |
1471 | unsigned int ret_data_len; | |
1472 | struct resume_key_req *res_key; | |
1473 | ||
1474 | rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid, | |
400d0ad6 EM |
1475 | FSCTL_SRV_REQUEST_RESUME_KEY, NULL, 0 /* no input */, |
1476 | CIFSMaxBufSize, (char **)&res_key, &ret_data_len); | |
41c1358e | 1477 | |
423333bc | 1478 | if (rc == -EOPNOTSUPP) { |
68e14569 | 1479 | pr_warn_once("Server share %s does not support copy range\n", tcon->tree_name); |
423333bc SF |
1480 | goto req_res_key_exit; |
1481 | } else if (rc) { | |
3175eb9b | 1482 | cifs_tcon_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc); |
41c1358e SF |
1483 | goto req_res_key_exit; |
1484 | } | |
1485 | if (ret_data_len < sizeof(struct resume_key_req)) { | |
3175eb9b | 1486 | cifs_tcon_dbg(VFS, "Invalid refcopy resume key length\n"); |
41c1358e SF |
1487 | rc = -EINVAL; |
1488 | goto req_res_key_exit; | |
1489 | } | |
1490 | memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE); | |
1491 | ||
1492 | req_res_key_exit: | |
1493 | kfree(res_key); | |
1494 | return rc; | |
1495 | } | |
1496 | ||
f5b05d62 RS |
1497 | static int |
1498 | smb2_ioctl_query_info(const unsigned int xid, | |
8d8b26e5 | 1499 | struct cifs_tcon *tcon, |
0f060936 | 1500 | struct cifs_sb_info *cifs_sb, |
8d8b26e5 | 1501 | __le16 *path, int is_dir, |
f5b05d62 RS |
1502 | unsigned long p) |
1503 | { | |
f4e5ceb6 | 1504 | struct smb2_compound_vars *vars; |
b2ca6c2c RS |
1505 | struct smb_rqst *rqst; |
1506 | struct kvec *rsp_iov; | |
f5b05d62 | 1507 | struct cifs_ses *ses = tcon->ses; |
4f1fffa2 | 1508 | struct TCP_Server_Info *server; |
f5b05d62 RS |
1509 | char __user *arg = (char __user *)p; |
1510 | struct smb_query_info qi; | |
1511 | struct smb_query_info __user *pqi; | |
1512 | int rc = 0; | |
04ad69c3 | 1513 | int flags = CIFS_CP_CREATE_CLOSE_OP; |
f5778c39 RS |
1514 | struct smb2_query_info_rsp *qi_rsp = NULL; |
1515 | struct smb2_ioctl_rsp *io_rsp = NULL; | |
8d8b26e5 | 1516 | void *buffer = NULL; |
8d8b26e5 | 1517 | int resp_buftype[3]; |
8d8b26e5 RS |
1518 | struct cifs_open_parms oparms; |
1519 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1520 | struct cifs_fid fid; | |
0e90696d RS |
1521 | unsigned int size[2]; |
1522 | void *data[2]; | |
0f060936 | 1523 | int create_options = is_dir ? CREATE_NOT_FILE : CREATE_NOT_DIR; |
d6f5e358 | 1524 | void (*free_req1_func)(struct smb_rqst *r); |
4f1fffa2 SP |
1525 | int retries = 0, cur_sleep = 1; |
1526 | ||
1527 | replay_again: | |
1528 | /* reinitialize for possible replay */ | |
1529 | flags = CIFS_CP_CREATE_CLOSE_OP; | |
1530 | oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1531 | server = cifs_pick_channel(ses); | |
8d8b26e5 | 1532 | |
b2ca6c2c RS |
1533 | vars = kzalloc(sizeof(*vars), GFP_ATOMIC); |
1534 | if (vars == NULL) | |
1535 | return -ENOMEM; | |
1536 | rqst = &vars->rqst[0]; | |
1537 | rsp_iov = &vars->rsp_iov[0]; | |
1538 | ||
8d8b26e5 | 1539 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; |
f5b05d62 | 1540 | |
d6f5e358 PA |
1541 | if (copy_from_user(&qi, arg, sizeof(struct smb_query_info))) { |
1542 | rc = -EFAULT; | |
1543 | goto free_vars; | |
1544 | } | |
b2ca6c2c | 1545 | if (qi.output_buffer_length > 1024) { |
d6f5e358 PA |
1546 | rc = -EINVAL; |
1547 | goto free_vars; | |
b2ca6c2c | 1548 | } |
f5b05d62 | 1549 | |
352d96f3 | 1550 | if (!ses || !server) { |
d6f5e358 PA |
1551 | rc = -EIO; |
1552 | goto free_vars; | |
b2ca6c2c | 1553 | } |
f5b05d62 RS |
1554 | |
1555 | if (smb3_encryption_required(tcon)) | |
1556 | flags |= CIFS_TRANSFORM_REQ; | |
1557 | ||
b92e3587 PA |
1558 | if (qi.output_buffer_length) { |
1559 | buffer = memdup_user(arg + sizeof(struct smb_query_info), qi.output_buffer_length); | |
1560 | if (IS_ERR(buffer)) { | |
d6f5e358 PA |
1561 | rc = PTR_ERR(buffer); |
1562 | goto free_vars; | |
b92e3587 | 1563 | } |
b2ca6c2c | 1564 | } |
f5b05d62 | 1565 | |
8d8b26e5 | 1566 | /* Open */ |
b2ca6c2c | 1567 | rqst[0].rq_iov = &vars->open_iov[0]; |
8d8b26e5 RS |
1568 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; |
1569 | ||
de036dca VL |
1570 | oparms = (struct cifs_open_parms) { |
1571 | .tcon = tcon, | |
1572 | .disposition = FILE_OPEN, | |
1573 | .create_options = cifs_create_options(cifs_sb, create_options), | |
1574 | .fid = &fid, | |
79520587 | 1575 | .replay = !!(retries), |
de036dca | 1576 | }; |
8d8b26e5 | 1577 | |
efac779b RS |
1578 | if (qi.flags & PASSTHRU_FSCTL) { |
1579 | switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { | |
1580 | case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: | |
1581 | oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; | |
46e66619 SF |
1582 | break; |
1583 | case FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS: | |
1584 | oparms.desired_access = GENERIC_ALL; | |
1585 | break; | |
1586 | case FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS: | |
1587 | oparms.desired_access = GENERIC_READ; | |
1588 | break; | |
1589 | case FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS: | |
1590 | oparms.desired_access = GENERIC_WRITE; | |
efac779b RS |
1591 | break; |
1592 | } | |
0e90696d RS |
1593 | } else if (qi.flags & PASSTHRU_SET_INFO) { |
1594 | oparms.desired_access = GENERIC_WRITE; | |
1595 | } else { | |
1596 | oparms.desired_access = FILE_READ_ATTRIBUTES | READ_CONTROL; | |
efac779b RS |
1597 | } |
1598 | ||
352d96f3 AA |
1599 | rc = SMB2_open_init(tcon, server, |
1600 | &rqst[0], &oplock, &oparms, path); | |
8d8b26e5 | 1601 | if (rc) |
d6f5e358 | 1602 | goto free_output_buffer; |
e77fe73c | 1603 | smb2_set_next_command(tcon, &rqst[0]); |
8d8b26e5 RS |
1604 | |
1605 | /* Query */ | |
31ba4331 SF |
1606 | if (qi.flags & PASSTHRU_FSCTL) { |
1607 | /* Can eventually relax perm check since server enforces too */ | |
d6f5e358 | 1608 | if (!capable(CAP_SYS_ADMIN)) { |
31ba4331 | 1609 | rc = -EPERM; |
d6f5e358 | 1610 | goto free_open_req; |
f5778c39 | 1611 | } |
d6f5e358 PA |
1612 | rqst[1].rq_iov = &vars->io_iov[0]; |
1613 | rqst[1].rq_nvec = SMB2_IOCTL_IOV_SIZE; | |
1614 | ||
1615 | rc = SMB2_ioctl_init(tcon, server, &rqst[1], COMPOUND_FID, COMPOUND_FID, | |
400d0ad6 | 1616 | qi.info_type, buffer, qi.output_buffer_length, |
d6f5e358 PA |
1617 | CIFSMaxBufSize - MAX_SMB2_CREATE_RESPONSE_SIZE - |
1618 | MAX_SMB2_CLOSE_RESPONSE_SIZE); | |
1619 | free_req1_func = SMB2_ioctl_free; | |
0e90696d RS |
1620 | } else if (qi.flags == PASSTHRU_SET_INFO) { |
1621 | /* Can eventually relax perm check since server enforces too */ | |
d6f5e358 | 1622 | if (!capable(CAP_SYS_ADMIN)) { |
0e90696d | 1623 | rc = -EPERM; |
d6f5e358 PA |
1624 | goto free_open_req; |
1625 | } | |
1626 | if (qi.output_buffer_length < 8) { | |
b92e3587 | 1627 | rc = -EINVAL; |
d6f5e358 | 1628 | goto free_open_req; |
0e90696d | 1629 | } |
f4e5ceb6 | 1630 | rqst[1].rq_iov = vars->si_iov; |
d6f5e358 PA |
1631 | rqst[1].rq_nvec = 1; |
1632 | ||
1633 | /* MS-FSCC 2.4.13 FileEndOfFileInformation */ | |
1634 | size[0] = 8; | |
1635 | data[0] = buffer; | |
1636 | ||
1637 | rc = SMB2_set_info_init(tcon, server, &rqst[1], COMPOUND_FID, COMPOUND_FID, | |
1638 | current->tgid, FILE_END_OF_FILE_INFORMATION, | |
1639 | SMB2_O_INFO_FILE, 0, data, size); | |
1640 | free_req1_func = SMB2_set_info_free; | |
31ba4331 | 1641 | } else if (qi.flags == PASSTHRU_QUERY_INFO) { |
f4e5ceb6 | 1642 | rqst[1].rq_iov = &vars->qi_iov; |
31ba4331 SF |
1643 | rqst[1].rq_nvec = 1; |
1644 | ||
352d96f3 AA |
1645 | rc = SMB2_query_info_init(tcon, server, |
1646 | &rqst[1], COMPOUND_FID, | |
31ba4331 SF |
1647 | COMPOUND_FID, qi.file_info_class, |
1648 | qi.info_type, qi.additional_information, | |
f5b05d62 RS |
1649 | qi.input_buffer_length, |
1650 | qi.output_buffer_length, buffer); | |
d6f5e358 | 1651 | free_req1_func = SMB2_query_info_free; |
31ba4331 | 1652 | } else { /* unknown flags */ |
a0a3036b JP |
1653 | cifs_tcon_dbg(VFS, "Invalid passthru query flags: 0x%x\n", |
1654 | qi.flags); | |
31ba4331 SF |
1655 | rc = -EINVAL; |
1656 | } | |
1657 | ||
f5b05d62 | 1658 | if (rc) |
d6f5e358 | 1659 | goto free_open_req; |
e77fe73c | 1660 | smb2_set_next_command(tcon, &rqst[1]); |
8d8b26e5 RS |
1661 | smb2_set_related(&rqst[1]); |
1662 | ||
1663 | /* Close */ | |
f4e5ceb6 | 1664 | rqst[2].rq_iov = &vars->close_iov; |
8d8b26e5 | 1665 | rqst[2].rq_nvec = 1; |
f5b05d62 | 1666 | |
352d96f3 AA |
1667 | rc = SMB2_close_init(tcon, server, |
1668 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
f5b05d62 | 1669 | if (rc) |
d6f5e358 | 1670 | goto free_req_1; |
8d8b26e5 | 1671 | smb2_set_related(&rqst[2]); |
f5b05d62 | 1672 | |
4f1fffa2 SP |
1673 | if (retries) { |
1674 | smb2_set_replay(server, &rqst[0]); | |
1675 | smb2_set_replay(server, &rqst[1]); | |
1676 | smb2_set_replay(server, &rqst[2]); | |
1677 | } | |
1678 | ||
352d96f3 AA |
1679 | rc = compound_send_recv(xid, ses, server, |
1680 | flags, 3, rqst, | |
8d8b26e5 RS |
1681 | resp_buftype, rsp_iov); |
1682 | if (rc) | |
d6f5e358 | 1683 | goto out; |
d2f15428 SF |
1684 | |
1685 | /* No need to bump num_remote_opens since handle immediately closed */ | |
f5778c39 RS |
1686 | if (qi.flags & PASSTHRU_FSCTL) { |
1687 | pqi = (struct smb_query_info __user *)arg; | |
1688 | io_rsp = (struct smb2_ioctl_rsp *)rsp_iov[1].iov_base; | |
1689 | if (le32_to_cpu(io_rsp->OutputCount) < qi.input_buffer_length) | |
1690 | qi.input_buffer_length = le32_to_cpu(io_rsp->OutputCount); | |
5242fcb7 | 1691 | if (qi.input_buffer_length > 0 && |
2b1116bb | 1692 | le32_to_cpu(io_rsp->OutputOffset) + qi.input_buffer_length |
d6f5e358 PA |
1693 | > rsp_iov[1].iov_len) { |
1694 | rc = -EFAULT; | |
1695 | goto out; | |
1696 | } | |
2b1116bb ME |
1697 | |
1698 | if (copy_to_user(&pqi->input_buffer_length, | |
1699 | &qi.input_buffer_length, | |
d6f5e358 PA |
1700 | sizeof(qi.input_buffer_length))) { |
1701 | rc = -EFAULT; | |
1702 | goto out; | |
1703 | } | |
2b1116bb | 1704 | |
5242fcb7 RS |
1705 | if (copy_to_user((void __user *)pqi + sizeof(struct smb_query_info), |
1706 | (const void *)io_rsp + le32_to_cpu(io_rsp->OutputOffset), | |
2b1116bb | 1707 | qi.input_buffer_length)) |
d6f5e358 | 1708 | rc = -EFAULT; |
f5778c39 RS |
1709 | } else { |
1710 | pqi = (struct smb_query_info __user *)arg; | |
1711 | qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base; | |
1712 | if (le32_to_cpu(qi_rsp->OutputBufferLength) < qi.input_buffer_length) | |
1713 | qi.input_buffer_length = le32_to_cpu(qi_rsp->OutputBufferLength); | |
2b1116bb ME |
1714 | if (copy_to_user(&pqi->input_buffer_length, |
1715 | &qi.input_buffer_length, | |
d6f5e358 PA |
1716 | sizeof(qi.input_buffer_length))) { |
1717 | rc = -EFAULT; | |
1718 | goto out; | |
1719 | } | |
2b1116bb ME |
1720 | |
1721 | if (copy_to_user(pqi + 1, qi_rsp->Buffer, | |
1722 | qi.input_buffer_length)) | |
d6f5e358 | 1723 | rc = -EFAULT; |
f5b05d62 RS |
1724 | } |
1725 | ||
d6f5e358 | 1726 | out: |
8d8b26e5 RS |
1727 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); |
1728 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1729 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
d6f5e358 PA |
1730 | SMB2_close_free(&rqst[2]); |
1731 | free_req_1: | |
1732 | free_req1_func(&rqst[1]); | |
1733 | free_open_req: | |
1734 | SMB2_open_free(&rqst[0]); | |
1735 | free_output_buffer: | |
ccd48ec3 | 1736 | kfree(buffer); |
d6f5e358 PA |
1737 | free_vars: |
1738 | kfree(vars); | |
4f1fffa2 SP |
1739 | |
1740 | if (is_replayable_error(rc) && | |
1741 | smb2_should_replay(tcon, &retries, &cur_sleep)) | |
1742 | goto replay_again; | |
1743 | ||
f5b05d62 RS |
1744 | return rc; |
1745 | } | |
1746 | ||
620d8745 | 1747 | static ssize_t |
312bbc59 | 1748 | smb2_copychunk_range(const unsigned int xid, |
41c1358e SF |
1749 | struct cifsFileInfo *srcfile, |
1750 | struct cifsFileInfo *trgtfile, u64 src_off, | |
1751 | u64 len, u64 dest_off) | |
1752 | { | |
1753 | int rc; | |
1754 | unsigned int ret_data_len; | |
1755 | struct copychunk_ioctl *pcchunk; | |
9bf0c9cd SF |
1756 | struct copychunk_ioctl_rsp *retbuf = NULL; |
1757 | struct cifs_tcon *tcon; | |
1758 | int chunks_copied = 0; | |
1759 | bool chunk_sizes_updated = false; | |
620d8745 | 1760 | ssize_t bytes_written, total_bytes_written = 0; |
41c1358e SF |
1761 | |
1762 | pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL); | |
41c1358e SF |
1763 | if (pcchunk == NULL) |
1764 | return -ENOMEM; | |
1765 | ||
a205d500 | 1766 | cifs_dbg(FYI, "%s: about to call request res key\n", __func__); |
41c1358e SF |
1767 | /* Request a key from the server to identify the source of the copy */ |
1768 | rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink), | |
1769 | srcfile->fid.persistent_fid, | |
1770 | srcfile->fid.volatile_fid, pcchunk); | |
1771 | ||
1772 | /* Note: request_res_key sets res_key null only if rc !=0 */ | |
1773 | if (rc) | |
9bf0c9cd | 1774 | goto cchunk_out; |
41c1358e SF |
1775 | |
1776 | /* For now array only one chunk long, will make more flexible later */ | |
bc09d141 | 1777 | pcchunk->ChunkCount = cpu_to_le32(1); |
41c1358e | 1778 | pcchunk->Reserved = 0; |
41c1358e SF |
1779 | pcchunk->Reserved2 = 0; |
1780 | ||
9bf0c9cd | 1781 | tcon = tlink_tcon(trgtfile->tlink); |
41c1358e | 1782 | |
9bf0c9cd SF |
1783 | while (len > 0) { |
1784 | pcchunk->SourceOffset = cpu_to_le64(src_off); | |
1785 | pcchunk->TargetOffset = cpu_to_le64(dest_off); | |
1786 | pcchunk->Length = | |
d66cde50 | 1787 | cpu_to_le32(min_t(u64, len, tcon->max_bytes_chunk)); |
41c1358e | 1788 | |
9bf0c9cd | 1789 | /* Request server copy to target from src identified by key */ |
d201d763 RS |
1790 | kfree(retbuf); |
1791 | retbuf = NULL; | |
9bf0c9cd SF |
1792 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, |
1793 | trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, | |
400d0ad6 EM |
1794 | (char *)pcchunk, sizeof(struct copychunk_ioctl), |
1795 | CIFSMaxBufSize, (char **)&retbuf, &ret_data_len); | |
9bf0c9cd SF |
1796 | if (rc == 0) { |
1797 | if (ret_data_len != | |
1798 | sizeof(struct copychunk_ioctl_rsp)) { | |
a0a3036b | 1799 | cifs_tcon_dbg(VFS, "Invalid cchunk response size\n"); |
9bf0c9cd SF |
1800 | rc = -EIO; |
1801 | goto cchunk_out; | |
1802 | } | |
1803 | if (retbuf->TotalBytesWritten == 0) { | |
1804 | cifs_dbg(FYI, "no bytes copied\n"); | |
1805 | rc = -EIO; | |
1806 | goto cchunk_out; | |
1807 | } | |
1808 | /* | |
1809 | * Check if server claimed to write more than we asked | |
1810 | */ | |
1811 | if (le32_to_cpu(retbuf->TotalBytesWritten) > | |
1812 | le32_to_cpu(pcchunk->Length)) { | |
a0a3036b | 1813 | cifs_tcon_dbg(VFS, "Invalid copy chunk response\n"); |
9bf0c9cd SF |
1814 | rc = -EIO; |
1815 | goto cchunk_out; | |
1816 | } | |
1817 | if (le32_to_cpu(retbuf->ChunksWritten) != 1) { | |
a0a3036b | 1818 | cifs_tcon_dbg(VFS, "Invalid num chunks written\n"); |
9bf0c9cd SF |
1819 | rc = -EIO; |
1820 | goto cchunk_out; | |
1821 | } | |
1822 | chunks_copied++; | |
1823 | ||
620d8745 SP |
1824 | bytes_written = le32_to_cpu(retbuf->TotalBytesWritten); |
1825 | src_off += bytes_written; | |
1826 | dest_off += bytes_written; | |
1827 | len -= bytes_written; | |
1828 | total_bytes_written += bytes_written; | |
9bf0c9cd | 1829 | |
620d8745 | 1830 | cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %zu\n", |
9bf0c9cd SF |
1831 | le32_to_cpu(retbuf->ChunksWritten), |
1832 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
620d8745 | 1833 | bytes_written); |
9bf0c9cd SF |
1834 | } else if (rc == -EINVAL) { |
1835 | if (ret_data_len != sizeof(struct copychunk_ioctl_rsp)) | |
1836 | goto cchunk_out; | |
1837 | ||
1838 | cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n", | |
1839 | le32_to_cpu(retbuf->ChunksWritten), | |
1840 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
1841 | le32_to_cpu(retbuf->TotalBytesWritten)); | |
1842 | ||
1843 | /* | |
1844 | * Check if this is the first request using these sizes, | |
1845 | * (ie check if copy succeed once with original sizes | |
1846 | * and check if the server gave us different sizes after | |
1847 | * we already updated max sizes on previous request). | |
1848 | * if not then why is the server returning an error now | |
1849 | */ | |
1850 | if ((chunks_copied != 0) || chunk_sizes_updated) | |
1851 | goto cchunk_out; | |
1852 | ||
1853 | /* Check that server is not asking us to grow size */ | |
1854 | if (le32_to_cpu(retbuf->ChunkBytesWritten) < | |
1855 | tcon->max_bytes_chunk) | |
1856 | tcon->max_bytes_chunk = | |
1857 | le32_to_cpu(retbuf->ChunkBytesWritten); | |
1858 | else | |
1859 | goto cchunk_out; /* server gave us bogus size */ | |
1860 | ||
1861 | /* No need to change MaxChunks since already set to 1 */ | |
1862 | chunk_sizes_updated = true; | |
2477bc58 SP |
1863 | } else |
1864 | goto cchunk_out; | |
9bf0c9cd | 1865 | } |
41c1358e | 1866 | |
9bf0c9cd | 1867 | cchunk_out: |
41c1358e | 1868 | kfree(pcchunk); |
24df1483 | 1869 | kfree(retbuf); |
620d8745 SP |
1870 | if (rc) |
1871 | return rc; | |
1872 | else | |
1873 | return total_bytes_written; | |
41c1358e SF |
1874 | } |
1875 | ||
7a5cfb19 PS |
1876 | static int |
1877 | smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon, | |
1878 | struct cifs_fid *fid) | |
1879 | { | |
1880 | return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
1881 | } | |
1882 | ||
09a4707e PS |
1883 | static unsigned int |
1884 | smb2_read_data_offset(char *buf) | |
1885 | { | |
1886 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
a205d500 | 1887 | |
09a4707e PS |
1888 | return rsp->DataOffset; |
1889 | } | |
1890 | ||
1891 | static unsigned int | |
74dcf418 | 1892 | smb2_read_data_length(char *buf, bool in_remaining) |
09a4707e PS |
1893 | { |
1894 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
74dcf418 LL |
1895 | |
1896 | if (in_remaining) | |
1897 | return le32_to_cpu(rsp->DataRemaining); | |
1898 | ||
09a4707e PS |
1899 | return le32_to_cpu(rsp->DataLength); |
1900 | } | |
1901 | ||
d8e05039 PS |
1902 | |
1903 | static int | |
db8b631d | 1904 | smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid, |
d8e05039 PS |
1905 | struct cifs_io_parms *parms, unsigned int *bytes_read, |
1906 | char **buf, int *buf_type) | |
1907 | { | |
db8b631d SF |
1908 | parms->persistent_fid = pfid->persistent_fid; |
1909 | parms->volatile_fid = pfid->volatile_fid; | |
d8e05039 PS |
1910 | return SMB2_read(xid, parms, bytes_read, buf, buf_type); |
1911 | } | |
1912 | ||
009d3443 | 1913 | static int |
db8b631d | 1914 | smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid, |
009d3443 PS |
1915 | struct cifs_io_parms *parms, unsigned int *written, |
1916 | struct kvec *iov, unsigned long nr_segs) | |
1917 | { | |
1918 | ||
db8b631d SF |
1919 | parms->persistent_fid = pfid->persistent_fid; |
1920 | parms->volatile_fid = pfid->volatile_fid; | |
009d3443 PS |
1921 | return SMB2_write(xid, parms, written, iov, nr_segs); |
1922 | } | |
1923 | ||
d43cc793 SF |
1924 | /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */ |
1925 | static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon, | |
1926 | struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse) | |
1927 | { | |
1928 | struct cifsInodeInfo *cifsi; | |
1929 | int rc; | |
1930 | ||
1931 | cifsi = CIFS_I(inode); | |
1932 | ||
1933 | /* if file already sparse don't bother setting sparse again */ | |
1934 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse) | |
1935 | return true; /* already sparse */ | |
1936 | ||
1937 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse) | |
1938 | return true; /* already not sparse */ | |
1939 | ||
1940 | /* | |
1941 | * Can't check for sparse support on share the usual way via the | |
1942 | * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share | |
1943 | * since Samba server doesn't set the flag on the share, yet | |
1944 | * supports the set sparse FSCTL and returns sparse correctly | |
1945 | * in the file attributes. If we fail setting sparse though we | |
1946 | * mark that server does not support sparse files for this share | |
1947 | * to avoid repeatedly sending the unsupported fsctl to server | |
1948 | * if the file is repeatedly extended. | |
1949 | */ | |
1950 | if (tcon->broken_sparse_sup) | |
1951 | return false; | |
1952 | ||
1953 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1954 | cfile->fid.volatile_fid, FSCTL_SET_SPARSE, | |
153322f7 | 1955 | &setsparse, 1, CIFSMaxBufSize, NULL, NULL); |
d43cc793 SF |
1956 | if (rc) { |
1957 | tcon->broken_sparse_sup = true; | |
1958 | cifs_dbg(FYI, "set sparse rc = %d\n", rc); | |
1959 | return false; | |
1960 | } | |
1961 | ||
1962 | if (setsparse) | |
1963 | cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE; | |
1964 | else | |
1965 | cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE); | |
1966 | ||
1967 | return true; | |
1968 | } | |
1969 | ||
c839ff24 PS |
1970 | static int |
1971 | smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon, | |
1972 | struct cifsFileInfo *cfile, __u64 size, bool set_alloc) | |
1973 | { | |
3d1a3745 SF |
1974 | struct inode *inode; |
1975 | ||
1976 | /* | |
1977 | * If extending file more than one page make sparse. Many Linux fs | |
1978 | * make files sparse by default when extending via ftruncate | |
1979 | */ | |
2b0143b5 | 1980 | inode = d_inode(cfile->dentry); |
3d1a3745 SF |
1981 | |
1982 | if (!set_alloc && (size > inode->i_size + 8192)) { | |
3d1a3745 | 1983 | __u8 set_sparse = 1; |
d43cc793 SF |
1984 | |
1985 | /* whether set sparse succeeds or not, extend the file */ | |
1986 | smb2_set_sparse(xid, tcon, cfile, inode, set_sparse); | |
3d1a3745 SF |
1987 | } |
1988 | ||
c839ff24 | 1989 | return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
6ebfede8 | 1990 | cfile->fid.volatile_fid, cfile->pid, size); |
c839ff24 PS |
1991 | } |
1992 | ||
02b16665 SF |
1993 | static int |
1994 | smb2_duplicate_extents(const unsigned int xid, | |
1995 | struct cifsFileInfo *srcfile, | |
1996 | struct cifsFileInfo *trgtfile, u64 src_off, | |
1997 | u64 len, u64 dest_off) | |
1998 | { | |
1999 | int rc; | |
2000 | unsigned int ret_data_len; | |
cfc63fc8 | 2001 | struct inode *inode; |
02b16665 SF |
2002 | struct duplicate_extents_to_file dup_ext_buf; |
2003 | struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink); | |
2004 | ||
2005 | /* server fileays advertise duplicate extent support with this flag */ | |
2006 | if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) & | |
2007 | FILE_SUPPORTS_BLOCK_REFCOUNTING) == 0) | |
2008 | return -EOPNOTSUPP; | |
2009 | ||
2010 | dup_ext_buf.VolatileFileHandle = srcfile->fid.volatile_fid; | |
2011 | dup_ext_buf.PersistentFileHandle = srcfile->fid.persistent_fid; | |
2012 | dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off); | |
2013 | dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off); | |
2014 | dup_ext_buf.ByteCount = cpu_to_le64(len); | |
a205d500 | 2015 | cifs_dbg(FYI, "Duplicate extents: src off %lld dst off %lld len %lld\n", |
02b16665 SF |
2016 | src_off, dest_off, len); |
2017 | ||
cfc63fc8 SF |
2018 | inode = d_inode(trgtfile->dentry); |
2019 | if (inode->i_size < dest_off + len) { | |
2020 | rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false); | |
2021 | if (rc) | |
2022 | goto duplicate_extents_out; | |
02b16665 | 2023 | |
cfc63fc8 SF |
2024 | /* |
2025 | * Although also could set plausible allocation size (i_blocks) | |
2026 | * here in addition to setting the file size, in reflink | |
2027 | * it is likely that the target file is sparse. Its allocation | |
2028 | * size will be queried on next revalidate, but it is important | |
2029 | * to make sure that file's cached size is updated immediately | |
2030 | */ | |
93a43155 | 2031 | netfs_resize_file(netfs_inode(inode), dest_off + len, true); |
cfc63fc8 SF |
2032 | cifs_setsize(inode, dest_off + len); |
2033 | } | |
02b16665 SF |
2034 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, |
2035 | trgtfile->fid.volatile_fid, | |
2036 | FSCTL_DUPLICATE_EXTENTS_TO_FILE, | |
51146625 | 2037 | (char *)&dup_ext_buf, |
02b16665 | 2038 | sizeof(struct duplicate_extents_to_file), |
153322f7 | 2039 | CIFSMaxBufSize, NULL, |
02b16665 SF |
2040 | &ret_data_len); |
2041 | ||
2042 | if (ret_data_len > 0) | |
a205d500 | 2043 | cifs_dbg(FYI, "Non-zero response length in duplicate extents\n"); |
02b16665 SF |
2044 | |
2045 | duplicate_extents_out: | |
2046 | return rc; | |
2047 | } | |
02b16665 | 2048 | |
64a5cfa6 SF |
2049 | static int |
2050 | smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, | |
2051 | struct cifsFileInfo *cfile) | |
2052 | { | |
2053 | return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid, | |
2054 | cfile->fid.volatile_fid); | |
2055 | } | |
2056 | ||
b3152e2c SF |
2057 | static int |
2058 | smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon, | |
2059 | struct cifsFileInfo *cfile) | |
2060 | { | |
2061 | struct fsctl_set_integrity_information_req integr_info; | |
b3152e2c SF |
2062 | unsigned int ret_data_len; |
2063 | ||
2064 | integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED); | |
2065 | integr_info.Flags = 0; | |
2066 | integr_info.Reserved = 0; | |
2067 | ||
2068 | return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
2069 | cfile->fid.volatile_fid, | |
2070 | FSCTL_SET_INTEGRITY_INFORMATION, | |
51146625 | 2071 | (char *)&integr_info, |
b3152e2c | 2072 | sizeof(struct fsctl_set_integrity_information_req), |
153322f7 | 2073 | CIFSMaxBufSize, NULL, |
b3152e2c SF |
2074 | &ret_data_len); |
2075 | ||
2076 | } | |
2077 | ||
e02789a5 SF |
2078 | /* GMT Token is @GMT-YYYY.MM.DD-HH.MM.SS Unicode which is 48 bytes + null */ |
2079 | #define GMT_TOKEN_SIZE 50 | |
2080 | ||
153322f7 SF |
2081 | #define MIN_SNAPSHOT_ARRAY_SIZE 16 /* See MS-SMB2 section 3.3.5.15.1 */ |
2082 | ||
e02789a5 SF |
2083 | /* |
2084 | * Input buffer contains (empty) struct smb_snapshot array with size filled in | |
2085 | * For output see struct SRV_SNAPSHOT_ARRAY in MS-SMB2 section 2.2.32.2 | |
2086 | */ | |
834170c8 SF |
2087 | static int |
2088 | smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon, | |
2089 | struct cifsFileInfo *cfile, void __user *ioc_buf) | |
2090 | { | |
2091 | char *retbuf = NULL; | |
2092 | unsigned int ret_data_len = 0; | |
2093 | int rc; | |
153322f7 | 2094 | u32 max_response_size; |
834170c8 SF |
2095 | struct smb_snapshot_array snapshot_in; |
2096 | ||
973189ab SF |
2097 | /* |
2098 | * On the first query to enumerate the list of snapshots available | |
2099 | * for this volume the buffer begins with 0 (number of snapshots | |
2100 | * which can be returned is zero since at that point we do not know | |
2101 | * how big the buffer needs to be). On the second query, | |
2102 | * it (ret_data_len) is set to number of snapshots so we can | |
2103 | * know to set the maximum response size larger (see below). | |
2104 | */ | |
153322f7 SF |
2105 | if (get_user(ret_data_len, (unsigned int __user *)ioc_buf)) |
2106 | return -EFAULT; | |
2107 | ||
2108 | /* | |
2109 | * Note that for snapshot queries that servers like Azure expect that | |
2110 | * the first query be minimal size (and just used to get the number/size | |
2111 | * of previous versions) so response size must be specified as EXACTLY | |
2112 | * sizeof(struct snapshot_array) which is 16 when rounded up to multiple | |
2113 | * of eight bytes. | |
2114 | */ | |
2115 | if (ret_data_len == 0) | |
2116 | max_response_size = MIN_SNAPSHOT_ARRAY_SIZE; | |
2117 | else | |
2118 | max_response_size = CIFSMaxBufSize; | |
2119 | ||
834170c8 SF |
2120 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, |
2121 | cfile->fid.volatile_fid, | |
2122 | FSCTL_SRV_ENUMERATE_SNAPSHOTS, | |
153322f7 | 2123 | NULL, 0 /* no input data */, max_response_size, |
834170c8 SF |
2124 | (char **)&retbuf, |
2125 | &ret_data_len); | |
2126 | cifs_dbg(FYI, "enum snaphots ioctl returned %d and ret buflen is %d\n", | |
2127 | rc, ret_data_len); | |
2128 | if (rc) | |
2129 | return rc; | |
2130 | ||
2131 | if (ret_data_len && (ioc_buf != NULL) && (retbuf != NULL)) { | |
2132 | /* Fixup buffer */ | |
2133 | if (copy_from_user(&snapshot_in, ioc_buf, | |
2134 | sizeof(struct smb_snapshot_array))) { | |
2135 | rc = -EFAULT; | |
2136 | kfree(retbuf); | |
2137 | return rc; | |
2138 | } | |
834170c8 | 2139 | |
e02789a5 SF |
2140 | /* |
2141 | * Check for min size, ie not large enough to fit even one GMT | |
2142 | * token (snapshot). On the first ioctl some users may pass in | |
2143 | * smaller size (or zero) to simply get the size of the array | |
2144 | * so the user space caller can allocate sufficient memory | |
2145 | * and retry the ioctl again with larger array size sufficient | |
2146 | * to hold all of the snapshot GMT tokens on the second try. | |
2147 | */ | |
2148 | if (snapshot_in.snapshot_array_size < GMT_TOKEN_SIZE) | |
2149 | ret_data_len = sizeof(struct smb_snapshot_array); | |
2150 | ||
2151 | /* | |
2152 | * We return struct SRV_SNAPSHOT_ARRAY, followed by | |
2153 | * the snapshot array (of 50 byte GMT tokens) each | |
2154 | * representing an available previous version of the data | |
2155 | */ | |
2156 | if (ret_data_len > (snapshot_in.snapshot_array_size + | |
2157 | sizeof(struct smb_snapshot_array))) | |
2158 | ret_data_len = snapshot_in.snapshot_array_size + | |
2159 | sizeof(struct smb_snapshot_array); | |
834170c8 SF |
2160 | |
2161 | if (copy_to_user(ioc_buf, retbuf, ret_data_len)) | |
2162 | rc = -EFAULT; | |
2163 | } | |
2164 | ||
2165 | kfree(retbuf); | |
2166 | return rc; | |
2167 | } | |
2168 | ||
d26c2ddd SF |
2169 | |
2170 | ||
2171 | static int | |
2172 | smb3_notify(const unsigned int xid, struct file *pfile, | |
e3e94634 | 2173 | void __user *ioc_buf, bool return_changes) |
d26c2ddd | 2174 | { |
e3e94634 SF |
2175 | struct smb3_notify_info notify; |
2176 | struct smb3_notify_info __user *pnotify_buf; | |
d26c2ddd SF |
2177 | struct dentry *dentry = pfile->f_path.dentry; |
2178 | struct inode *inode = file_inode(pfile); | |
f6a9bc33 | 2179 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); |
d26c2ddd SF |
2180 | struct cifs_open_parms oparms; |
2181 | struct cifs_fid fid; | |
2182 | struct cifs_tcon *tcon; | |
f6a9bc33 | 2183 | const unsigned char *path; |
e3e94634 | 2184 | char *returned_ioctl_info = NULL; |
f6a9bc33 | 2185 | void *page = alloc_dentry_path(); |
d26c2ddd SF |
2186 | __le16 *utf16_path = NULL; |
2187 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2188 | int rc = 0; | |
e3e94634 | 2189 | __u32 ret_len = 0; |
d26c2ddd | 2190 | |
f6a9bc33 AV |
2191 | path = build_path_from_dentry(dentry, page); |
2192 | if (IS_ERR(path)) { | |
2193 | rc = PTR_ERR(path); | |
2194 | goto notify_exit; | |
2195 | } | |
d26c2ddd | 2196 | |
a637f4ae | 2197 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); |
d26c2ddd SF |
2198 | if (utf16_path == NULL) { |
2199 | rc = -ENOMEM; | |
2200 | goto notify_exit; | |
2201 | } | |
2202 | ||
e3e94634 SF |
2203 | if (return_changes) { |
2204 | if (copy_from_user(¬ify, ioc_buf, sizeof(struct smb3_notify_info))) { | |
2205 | rc = -EFAULT; | |
2206 | goto notify_exit; | |
2207 | } | |
2208 | } else { | |
2209 | if (copy_from_user(¬ify, ioc_buf, sizeof(struct smb3_notify))) { | |
2210 | rc = -EFAULT; | |
2211 | goto notify_exit; | |
2212 | } | |
2213 | notify.data_len = 0; | |
d26c2ddd SF |
2214 | } |
2215 | ||
2216 | tcon = cifs_sb_master_tcon(cifs_sb); | |
de036dca VL |
2217 | oparms = (struct cifs_open_parms) { |
2218 | .tcon = tcon, | |
fddc6ccc | 2219 | .path = path, |
de036dca VL |
2220 | .desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA, |
2221 | .disposition = FILE_OPEN, | |
2222 | .create_options = cifs_create_options(cifs_sb, 0), | |
2223 | .fid = &fid, | |
2224 | }; | |
d26c2ddd | 2225 | |
69dda305 AA |
2226 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL, |
2227 | NULL); | |
d26c2ddd SF |
2228 | if (rc) |
2229 | goto notify_exit; | |
2230 | ||
2231 | rc = SMB2_change_notify(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
e3e94634 SF |
2232 | notify.watch_tree, notify.completion_filter, |
2233 | notify.data_len, &returned_ioctl_info, &ret_len); | |
d26c2ddd SF |
2234 | |
2235 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
2236 | ||
2237 | cifs_dbg(FYI, "change notify for path %s rc %d\n", path, rc); | |
e3e94634 SF |
2238 | if (return_changes && (ret_len > 0) && (notify.data_len > 0)) { |
2239 | if (ret_len > notify.data_len) | |
2240 | ret_len = notify.data_len; | |
2241 | pnotify_buf = (struct smb3_notify_info __user *)ioc_buf; | |
2242 | if (copy_to_user(pnotify_buf->notify_data, returned_ioctl_info, ret_len)) | |
2243 | rc = -EFAULT; | |
2244 | else if (copy_to_user(&pnotify_buf->data_len, &ret_len, sizeof(ret_len))) | |
2245 | rc = -EFAULT; | |
2246 | } | |
2247 | kfree(returned_ioctl_info); | |
d26c2ddd | 2248 | notify_exit: |
f6a9bc33 | 2249 | free_dentry_path(page); |
d26c2ddd SF |
2250 | kfree(utf16_path); |
2251 | return rc; | |
2252 | } | |
2253 | ||
d324f08d PS |
2254 | static int |
2255 | smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, | |
2256 | const char *path, struct cifs_sb_info *cifs_sb, | |
2257 | struct cifs_fid *fid, __u16 search_flags, | |
2258 | struct cifs_search_info *srch_inf) | |
2259 | { | |
2260 | __le16 *utf16_path; | |
37478608 RS |
2261 | struct smb_rqst rqst[2]; |
2262 | struct kvec rsp_iov[2]; | |
2263 | int resp_buftype[2]; | |
2264 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
2265 | struct kvec qd_iov[SMB2_QUERY_DIRECTORY_IOV_SIZE]; | |
2266 | int rc, flags = 0; | |
2267 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
064f6047 | 2268 | struct cifs_open_parms oparms; |
37478608 RS |
2269 | struct smb2_query_directory_rsp *qd_rsp = NULL; |
2270 | struct smb2_create_rsp *op_rsp = NULL; | |
4f1fffa2 SP |
2271 | struct TCP_Server_Info *server; |
2272 | int retries = 0, cur_sleep = 1; | |
2273 | ||
2274 | replay_again: | |
2275 | /* reinitialize for possible replay */ | |
2276 | flags = 0; | |
2277 | oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2278 | server = cifs_pick_channel(tcon->ses); | |
d324f08d PS |
2279 | |
2280 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
2281 | if (!utf16_path) | |
2282 | return -ENOMEM; | |
2283 | ||
37478608 RS |
2284 | if (smb3_encryption_required(tcon)) |
2285 | flags |= CIFS_TRANSFORM_REQ; | |
2286 | ||
2287 | memset(rqst, 0, sizeof(rqst)); | |
2288 | resp_buftype[0] = resp_buftype[1] = CIFS_NO_BUFFER; | |
2289 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
2290 | ||
2291 | /* Open */ | |
2292 | memset(&open_iov, 0, sizeof(open_iov)); | |
2293 | rqst[0].rq_iov = open_iov; | |
2294 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
2295 | ||
de036dca VL |
2296 | oparms = (struct cifs_open_parms) { |
2297 | .tcon = tcon, | |
fddc6ccc | 2298 | .path = path, |
de036dca VL |
2299 | .desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA, |
2300 | .disposition = FILE_OPEN, | |
2301 | .create_options = cifs_create_options(cifs_sb, 0), | |
2302 | .fid = fid, | |
79520587 | 2303 | .replay = !!(retries), |
de036dca | 2304 | }; |
064f6047 | 2305 | |
352d96f3 AA |
2306 | rc = SMB2_open_init(tcon, server, |
2307 | &rqst[0], &oplock, &oparms, utf16_path); | |
37478608 RS |
2308 | if (rc) |
2309 | goto qdf_free; | |
2310 | smb2_set_next_command(tcon, &rqst[0]); | |
d324f08d | 2311 | |
37478608 | 2312 | /* Query directory */ |
d324f08d | 2313 | srch_inf->entries_in_buffer = 0; |
0595751f | 2314 | srch_inf->index_of_last_entry = 2; |
d324f08d | 2315 | |
37478608 RS |
2316 | memset(&qd_iov, 0, sizeof(qd_iov)); |
2317 | rqst[1].rq_iov = qd_iov; | |
2318 | rqst[1].rq_nvec = SMB2_QUERY_DIRECTORY_IOV_SIZE; | |
2319 | ||
352d96f3 AA |
2320 | rc = SMB2_query_directory_init(xid, tcon, server, |
2321 | &rqst[1], | |
37478608 RS |
2322 | COMPOUND_FID, COMPOUND_FID, |
2323 | 0, srch_inf->info_level); | |
2324 | if (rc) | |
2325 | goto qdf_free; | |
2326 | ||
2327 | smb2_set_related(&rqst[1]); | |
2328 | ||
4f1fffa2 SP |
2329 | if (retries) { |
2330 | smb2_set_replay(server, &rqst[0]); | |
2331 | smb2_set_replay(server, &rqst[1]); | |
2332 | } | |
2333 | ||
352d96f3 AA |
2334 | rc = compound_send_recv(xid, tcon->ses, server, |
2335 | flags, 2, rqst, | |
37478608 RS |
2336 | resp_buftype, rsp_iov); |
2337 | ||
2338 | /* If the open failed there is nothing to do */ | |
2339 | op_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base; | |
0d35e382 | 2340 | if (op_rsp == NULL || op_rsp->hdr.Status != STATUS_SUCCESS) { |
37478608 RS |
2341 | cifs_dbg(FYI, "query_dir_first: open failed rc=%d\n", rc); |
2342 | goto qdf_free; | |
2343 | } | |
351a59da PA |
2344 | fid->persistent_fid = op_rsp->PersistentFileId; |
2345 | fid->volatile_fid = op_rsp->VolatileFileId; | |
37478608 RS |
2346 | |
2347 | /* Anything else than ENODATA means a genuine error */ | |
2348 | if (rc && rc != -ENODATA) { | |
064f6047 | 2349 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
37478608 RS |
2350 | cifs_dbg(FYI, "query_dir_first: query directory failed rc=%d\n", rc); |
2351 | trace_smb3_query_dir_err(xid, fid->persistent_fid, | |
2352 | tcon->tid, tcon->ses->Suid, 0, 0, rc); | |
2353 | goto qdf_free; | |
2354 | } | |
2355 | ||
1be1fa42 SP |
2356 | atomic_inc(&tcon->num_remote_opens); |
2357 | ||
37478608 | 2358 | qd_rsp = (struct smb2_query_directory_rsp *)rsp_iov[1].iov_base; |
0d35e382 | 2359 | if (qd_rsp->hdr.Status == STATUS_NO_MORE_FILES) { |
37478608 RS |
2360 | trace_smb3_query_dir_done(xid, fid->persistent_fid, |
2361 | tcon->tid, tcon->ses->Suid, 0, 0); | |
2362 | srch_inf->endOfSearch = true; | |
2363 | rc = 0; | |
2364 | goto qdf_free; | |
2365 | } | |
2366 | ||
2367 | rc = smb2_parse_query_directory(tcon, &rsp_iov[1], resp_buftype[1], | |
2368 | srch_inf); | |
2369 | if (rc) { | |
2370 | trace_smb3_query_dir_err(xid, fid->persistent_fid, tcon->tid, | |
2371 | tcon->ses->Suid, 0, 0, rc); | |
2372 | goto qdf_free; | |
d324f08d | 2373 | } |
37478608 RS |
2374 | resp_buftype[1] = CIFS_NO_BUFFER; |
2375 | ||
2376 | trace_smb3_query_dir_done(xid, fid->persistent_fid, tcon->tid, | |
2377 | tcon->ses->Suid, 0, srch_inf->entries_in_buffer); | |
2378 | ||
2379 | qdf_free: | |
2380 | kfree(utf16_path); | |
2381 | SMB2_open_free(&rqst[0]); | |
2382 | SMB2_query_directory_free(&rqst[1]); | |
2383 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
2384 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
4f1fffa2 SP |
2385 | |
2386 | if (is_replayable_error(rc) && | |
2387 | smb2_should_replay(tcon, &retries, &cur_sleep)) | |
2388 | goto replay_again; | |
2389 | ||
d324f08d PS |
2390 | return rc; |
2391 | } | |
2392 | ||
2393 | static int | |
2394 | smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon, | |
2395 | struct cifs_fid *fid, __u16 search_flags, | |
2396 | struct cifs_search_info *srch_inf) | |
2397 | { | |
2398 | return SMB2_query_directory(xid, tcon, fid->persistent_fid, | |
2399 | fid->volatile_fid, 0, srch_inf); | |
2400 | } | |
2401 | ||
2402 | static int | |
2403 | smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon, | |
2404 | struct cifs_fid *fid) | |
2405 | { | |
2406 | return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
2407 | } | |
2408 | ||
2e44b288 | 2409 | /* |
a205d500 CP |
2410 | * If we negotiate SMB2 protocol and get STATUS_PENDING - update |
2411 | * the number of credits and return true. Otherwise - return false. | |
2412 | */ | |
2e44b288 | 2413 | static bool |
66265f13 | 2414 | smb2_is_status_pending(char *buf, struct TCP_Server_Info *server) |
2e44b288 | 2415 | { |
0d35e382 | 2416 | struct smb2_hdr *shdr = (struct smb2_hdr *)buf; |
6d82c27a | 2417 | int scredits, in_flight; |
2e44b288 | 2418 | |
31473fc4 | 2419 | if (shdr->Status != STATUS_PENDING) |
2e44b288 PS |
2420 | return false; |
2421 | ||
66265f13 | 2422 | if (shdr->CreditRequest) { |
2e44b288 | 2423 | spin_lock(&server->req_lock); |
31473fc4 | 2424 | server->credits += le16_to_cpu(shdr->CreditRequest); |
cd7b699b | 2425 | scredits = server->credits; |
6d82c27a | 2426 | in_flight = server->in_flight; |
2e44b288 PS |
2427 | spin_unlock(&server->req_lock); |
2428 | wake_up(&server->request_q); | |
cd7b699b | 2429 | |
1ddff774 | 2430 | trace_smb3_pend_credits(server->CurrentMid, |
6d82c27a SP |
2431 | server->conn_id, server->hostname, scredits, |
2432 | le16_to_cpu(shdr->CreditRequest), in_flight); | |
cd7b699b SP |
2433 | cifs_dbg(FYI, "%s: status pending add %u credits total=%d\n", |
2434 | __func__, le16_to_cpu(shdr->CreditRequest), scredits); | |
2e44b288 PS |
2435 | } |
2436 | ||
2437 | return true; | |
2438 | } | |
2439 | ||
511c54a2 PS |
2440 | static bool |
2441 | smb2_is_session_expired(char *buf) | |
2442 | { | |
0d35e382 | 2443 | struct smb2_hdr *shdr = (struct smb2_hdr *)buf; |
511c54a2 | 2444 | |
d81243c6 MS |
2445 | if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED && |
2446 | shdr->Status != STATUS_USER_SESSION_DELETED) | |
511c54a2 PS |
2447 | return false; |
2448 | ||
0d35e382 RS |
2449 | trace_smb3_ses_expired(le32_to_cpu(shdr->Id.SyncId.TreeId), |
2450 | le64_to_cpu(shdr->SessionId), | |
e68a932b SF |
2451 | le16_to_cpu(shdr->Command), |
2452 | le64_to_cpu(shdr->MessageId)); | |
d81243c6 | 2453 | cifs_dbg(FYI, "Session expired or deleted\n"); |
e68a932b | 2454 | |
511c54a2 PS |
2455 | return true; |
2456 | } | |
2457 | ||
8e670f77 RS |
2458 | static bool |
2459 | smb2_is_status_io_timeout(char *buf) | |
2460 | { | |
0d35e382 | 2461 | struct smb2_hdr *shdr = (struct smb2_hdr *)buf; |
8e670f77 RS |
2462 | |
2463 | if (shdr->Status == STATUS_IO_TIMEOUT) | |
2464 | return true; | |
2465 | else | |
2466 | return false; | |
2467 | } | |
2468 | ||
c071b34f | 2469 | static bool |
9e550b08 RS |
2470 | smb2_is_network_name_deleted(char *buf, struct TCP_Server_Info *server) |
2471 | { | |
0d35e382 | 2472 | struct smb2_hdr *shdr = (struct smb2_hdr *)buf; |
8abcaeae | 2473 | struct TCP_Server_Info *pserver; |
9e550b08 RS |
2474 | struct cifs_ses *ses; |
2475 | struct cifs_tcon *tcon; | |
2476 | ||
f1a08655 | 2477 | if (shdr->Status != STATUS_NETWORK_NAME_DELETED) |
c071b34f | 2478 | return false; |
f1a08655 | 2479 | |
8abcaeae | 2480 | /* If server is a channel, select the primary channel */ |
b3773b19 | 2481 | pserver = SERVER_IS_CHAN(server) ? server->primary_server : server; |
8abcaeae | 2482 | |
f1a08655 | 2483 | spin_lock(&cifs_tcp_ses_lock); |
8abcaeae | 2484 | list_for_each_entry(ses, &pserver->smb_ses_list, smb_ses_list) { |
63981561 PA |
2485 | if (cifs_ses_exiting(ses)) |
2486 | continue; | |
9543c8ab | 2487 | list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { |
0d35e382 | 2488 | if (tcon->tid == le32_to_cpu(shdr->Id.SyncId.TreeId)) { |
d7d7a66a | 2489 | spin_lock(&tcon->tc_lock); |
f1a08655 | 2490 | tcon->need_reconnect = true; |
d7d7a66a | 2491 | spin_unlock(&tcon->tc_lock); |
f1a08655 SF |
2492 | spin_unlock(&cifs_tcp_ses_lock); |
2493 | pr_warn_once("Server share %s deleted.\n", | |
68e14569 | 2494 | tcon->tree_name); |
c071b34f | 2495 | return true; |
9e550b08 RS |
2496 | } |
2497 | } | |
9e550b08 | 2498 | } |
f1a08655 | 2499 | spin_unlock(&cifs_tcp_ses_lock); |
c071b34f SP |
2500 | |
2501 | return false; | |
9e550b08 RS |
2502 | } |
2503 | ||
983c88a4 | 2504 | static int |
59a556ae BS |
2505 | smb2_oplock_response(struct cifs_tcon *tcon, __u64 persistent_fid, |
2506 | __u64 volatile_fid, __u16 net_fid, struct cifsInodeInfo *cinode) | |
983c88a4 | 2507 | { |
0822f514 PS |
2508 | if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING) |
2509 | return SMB2_lease_break(0, tcon, cinode->lease_key, | |
2510 | smb2_get_lease_state(cinode)); | |
2511 | ||
59a556ae | 2512 | return SMB2_oplock_break(0, tcon, persistent_fid, volatile_fid, |
18cceb6a | 2513 | CIFS_CACHE_READ(cinode) ? 1 : 0); |
983c88a4 PS |
2514 | } |
2515 | ||
4f1fffa2 SP |
2516 | void |
2517 | smb2_set_replay(struct TCP_Server_Info *server, struct smb_rqst *rqst) | |
2518 | { | |
2519 | struct smb2_hdr *shdr; | |
2520 | ||
2521 | if (server->dialect < SMB30_PROT_ID) | |
2522 | return; | |
2523 | ||
2524 | shdr = (struct smb2_hdr *)(rqst->rq_iov[0].iov_base); | |
2525 | if (shdr == NULL) { | |
2526 | cifs_dbg(FYI, "shdr NULL in smb2_set_related\n"); | |
2527 | return; | |
2528 | } | |
2529 | shdr->Flags |= SMB2_FLAGS_REPLAY_OPERATION; | |
2530 | } | |
2531 | ||
c5a5f38f | 2532 | void |
730928c8 RS |
2533 | smb2_set_related(struct smb_rqst *rqst) |
2534 | { | |
0d35e382 | 2535 | struct smb2_hdr *shdr; |
730928c8 | 2536 | |
0d35e382 | 2537 | shdr = (struct smb2_hdr *)(rqst->rq_iov[0].iov_base); |
88a92c91 RS |
2538 | if (shdr == NULL) { |
2539 | cifs_dbg(FYI, "shdr NULL in smb2_set_related\n"); | |
2540 | return; | |
2541 | } | |
730928c8 RS |
2542 | shdr->Flags |= SMB2_FLAGS_RELATED_OPERATIONS; |
2543 | } | |
2544 | ||
2545 | char smb2_padding[7] = {0, 0, 0, 0, 0, 0, 0}; | |
2546 | ||
c5a5f38f | 2547 | void |
e77fe73c | 2548 | smb2_set_next_command(struct cifs_tcon *tcon, struct smb_rqst *rqst) |
730928c8 | 2549 | { |
0d35e382 | 2550 | struct smb2_hdr *shdr; |
e77fe73c RS |
2551 | struct cifs_ses *ses = tcon->ses; |
2552 | struct TCP_Server_Info *server = ses->server; | |
730928c8 | 2553 | unsigned long len = smb_rqst_len(server, rqst); |
e77fe73c | 2554 | int i, num_padding; |
730928c8 | 2555 | |
0d35e382 | 2556 | shdr = (struct smb2_hdr *)(rqst->rq_iov[0].iov_base); |
88a92c91 RS |
2557 | if (shdr == NULL) { |
2558 | cifs_dbg(FYI, "shdr NULL in smb2_set_next_command\n"); | |
2559 | return; | |
2560 | } | |
2561 | ||
730928c8 | 2562 | /* SMB headers in a compound are 8 byte aligned. */ |
e77fe73c RS |
2563 | |
2564 | /* No padding needed */ | |
2565 | if (!(len & 7)) | |
2566 | goto finished; | |
2567 | ||
2568 | num_padding = 8 - (len & 7); | |
2569 | if (!smb3_encryption_required(tcon)) { | |
2570 | /* | |
2571 | * If we do not have encryption then we can just add an extra | |
2572 | * iov for the padding. | |
2573 | */ | |
2574 | rqst->rq_iov[rqst->rq_nvec].iov_base = smb2_padding; | |
2575 | rqst->rq_iov[rqst->rq_nvec].iov_len = num_padding; | |
2576 | rqst->rq_nvec++; | |
2577 | len += num_padding; | |
2578 | } else { | |
2579 | /* | |
2580 | * We can not add a small padding iov for the encryption case | |
2581 | * because the encryption framework can not handle the padding | |
2582 | * iovs. | |
2583 | * We have to flatten this into a single buffer and add | |
2584 | * the padding to it. | |
2585 | */ | |
2586 | for (i = 1; i < rqst->rq_nvec; i++) { | |
2587 | memcpy(rqst->rq_iov[0].iov_base + | |
2588 | rqst->rq_iov[0].iov_len, | |
2589 | rqst->rq_iov[i].iov_base, | |
2590 | rqst->rq_iov[i].iov_len); | |
2591 | rqst->rq_iov[0].iov_len += rqst->rq_iov[i].iov_len; | |
271b9c0c | 2592 | } |
e77fe73c RS |
2593 | memset(rqst->rq_iov[0].iov_base + rqst->rq_iov[0].iov_len, |
2594 | 0, num_padding); | |
2595 | rqst->rq_iov[0].iov_len += num_padding; | |
2596 | len += num_padding; | |
2597 | rqst->rq_nvec = 1; | |
730928c8 RS |
2598 | } |
2599 | ||
e77fe73c | 2600 | finished: |
730928c8 RS |
2601 | shdr->NextCommand = cpu_to_le32(len); |
2602 | } | |
2603 | ||
4f1fffa2 SP |
2604 | /* |
2605 | * helper function for exponential backoff and check if replayable | |
2606 | */ | |
2607 | bool smb2_should_replay(struct cifs_tcon *tcon, | |
2608 | int *pretries, | |
2609 | int *pcur_sleep) | |
2610 | { | |
2611 | if (!pretries || !pcur_sleep) | |
2612 | return false; | |
2613 | ||
2614 | if (tcon->retry || (*pretries)++ < tcon->ses->server->retrans) { | |
2615 | msleep(*pcur_sleep); | |
2616 | (*pcur_sleep) = ((*pcur_sleep) << 1); | |
2617 | if ((*pcur_sleep) > CIFS_MAX_SLEEP) | |
2618 | (*pcur_sleep) = CIFS_MAX_SLEEP; | |
2619 | return true; | |
2620 | } | |
2621 | ||
2622 | return false; | |
2623 | } | |
2624 | ||
07d3b2e4 RS |
2625 | /* |
2626 | * Passes the query info response back to the caller on success. | |
2627 | * Caller need to free this with free_rsp_buf(). | |
2628 | */ | |
f9793b6f | 2629 | int |
07d3b2e4 | 2630 | smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon, |
5e0c969e | 2631 | const char *path, u32 desired_access, |
07d3b2e4 | 2632 | u32 class, u32 type, u32 output_len, |
f9793b6f RS |
2633 | struct kvec *rsp, int *buftype, |
2634 | struct cifs_sb_info *cifs_sb) | |
6fc05c25 | 2635 | { |
b9148756 | 2636 | struct smb2_compound_vars *vars; |
07d3b2e4 | 2637 | struct cifs_ses *ses = tcon->ses; |
4f1fffa2 | 2638 | struct TCP_Server_Info *server; |
04ad69c3 | 2639 | int flags = CIFS_CP_CREATE_CLOSE_OP; |
b9148756 | 2640 | struct smb_rqst *rqst; |
730928c8 | 2641 | int resp_buftype[3]; |
b9148756 | 2642 | struct kvec *rsp_iov; |
6fc05c25 | 2643 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
2644 | struct cifs_open_parms oparms; |
2645 | struct cifs_fid fid; | |
730928c8 | 2646 | int rc; |
5e0c969e | 2647 | __le16 *utf16_path; |
8708b107 | 2648 | struct cached_fid *cfid = NULL; |
4f1fffa2 SP |
2649 | int retries = 0, cur_sleep = 1; |
2650 | ||
2651 | replay_again: | |
2652 | /* reinitialize for possible replay */ | |
2653 | flags = CIFS_CP_CREATE_CLOSE_OP; | |
2654 | oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2655 | server = cifs_pick_channel(ses); | |
5e0c969e RS |
2656 | |
2657 | if (!path) | |
2658 | path = ""; | |
2659 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
2660 | if (!utf16_path) | |
2661 | return -ENOMEM; | |
730928c8 RS |
2662 | |
2663 | if (smb3_encryption_required(tcon)) | |
2664 | flags |= CIFS_TRANSFORM_REQ; | |
2665 | ||
c5a5f38f | 2666 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; |
b9148756 PA |
2667 | vars = kzalloc(sizeof(*vars), GFP_KERNEL); |
2668 | if (!vars) { | |
2669 | rc = -ENOMEM; | |
2670 | goto out_free_path; | |
2671 | } | |
2672 | rqst = vars->rqst; | |
2673 | rsp_iov = vars->rsp_iov; | |
730928c8 | 2674 | |
7eb59a98 RS |
2675 | /* |
2676 | * We can only call this for things we know are directories. | |
2677 | */ | |
c9fc5ca4 | 2678 | if (!strcmp(path, "")) |
7eb59a98 RS |
2679 | open_cached_dir(xid, tcon, path, cifs_sb, false, |
2680 | &cfid); /* cfid null if open dir failed */ | |
8708b107 | 2681 | |
b9148756 | 2682 | rqst[0].rq_iov = vars->open_iov; |
4d8dfafc | 2683 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; |
064f6047 | 2684 | |
de036dca VL |
2685 | oparms = (struct cifs_open_parms) { |
2686 | .tcon = tcon, | |
fddc6ccc | 2687 | .path = path, |
de036dca VL |
2688 | .desired_access = desired_access, |
2689 | .disposition = FILE_OPEN, | |
2690 | .create_options = cifs_create_options(cifs_sb, 0), | |
2691 | .fid = &fid, | |
79520587 | 2692 | .replay = !!(retries), |
de036dca | 2693 | }; |
6fc05c25 | 2694 | |
352d96f3 AA |
2695 | rc = SMB2_open_init(tcon, server, |
2696 | &rqst[0], &oplock, &oparms, utf16_path); | |
6fc05c25 | 2697 | if (rc) |
07d3b2e4 | 2698 | goto qic_exit; |
e77fe73c | 2699 | smb2_set_next_command(tcon, &rqst[0]); |
730928c8 | 2700 | |
b9148756 | 2701 | rqst[1].rq_iov = &vars->qi_iov; |
730928c8 RS |
2702 | rqst[1].rq_nvec = 1; |
2703 | ||
8708b107 RS |
2704 | if (cfid) { |
2705 | rc = SMB2_query_info_init(tcon, server, | |
2706 | &rqst[1], | |
a63ec83c RS |
2707 | cfid->fid.persistent_fid, |
2708 | cfid->fid.volatile_fid, | |
8708b107 RS |
2709 | class, type, 0, |
2710 | output_len, 0, | |
2711 | NULL); | |
2712 | } else { | |
2713 | rc = SMB2_query_info_init(tcon, server, | |
2714 | &rqst[1], | |
2715 | COMPOUND_FID, | |
2716 | COMPOUND_FID, | |
2717 | class, type, 0, | |
2718 | output_len, 0, | |
2719 | NULL); | |
2720 | } | |
730928c8 | 2721 | if (rc) |
07d3b2e4 | 2722 | goto qic_exit; |
8708b107 RS |
2723 | if (!cfid) { |
2724 | smb2_set_next_command(tcon, &rqst[1]); | |
2725 | smb2_set_related(&rqst[1]); | |
2726 | } | |
730928c8 | 2727 | |
b9148756 | 2728 | rqst[2].rq_iov = &vars->close_iov; |
730928c8 RS |
2729 | rqst[2].rq_nvec = 1; |
2730 | ||
352d96f3 AA |
2731 | rc = SMB2_close_init(tcon, server, |
2732 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
730928c8 | 2733 | if (rc) |
07d3b2e4 | 2734 | goto qic_exit; |
730928c8 RS |
2735 | smb2_set_related(&rqst[2]); |
2736 | ||
4f1fffa2 SP |
2737 | if (retries) { |
2738 | if (!cfid) { | |
2739 | smb2_set_replay(server, &rqst[0]); | |
2740 | smb2_set_replay(server, &rqst[2]); | |
2741 | } | |
2742 | smb2_set_replay(server, &rqst[1]); | |
2743 | } | |
2744 | ||
8708b107 RS |
2745 | if (cfid) { |
2746 | rc = compound_send_recv(xid, ses, server, | |
2747 | flags, 1, &rqst[1], | |
2748 | &resp_buftype[1], &rsp_iov[1]); | |
2749 | } else { | |
2750 | rc = compound_send_recv(xid, ses, server, | |
2751 | flags, 3, rqst, | |
2752 | resp_buftype, rsp_iov); | |
2753 | } | |
f9793b6f RS |
2754 | if (rc) { |
2755 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
7dcc82c2 SF |
2756 | if (rc == -EREMCHG) { |
2757 | tcon->need_reconnect = true; | |
a0a3036b | 2758 | pr_warn_once("server share %s deleted\n", |
68e14569 | 2759 | tcon->tree_name); |
7dcc82c2 | 2760 | } |
07d3b2e4 | 2761 | goto qic_exit; |
f9793b6f | 2762 | } |
07d3b2e4 RS |
2763 | *rsp = rsp_iov[1]; |
2764 | *buftype = resp_buftype[1]; | |
2765 | ||
2766 | qic_exit: | |
2767 | SMB2_open_free(&rqst[0]); | |
2768 | SMB2_query_info_free(&rqst[1]); | |
2769 | SMB2_close_free(&rqst[2]); | |
2770 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
2771 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
8708b107 RS |
2772 | if (cfid) |
2773 | close_cached_dir(cfid); | |
b9148756 PA |
2774 | kfree(vars); |
2775 | out_free_path: | |
2776 | kfree(utf16_path); | |
4f1fffa2 SP |
2777 | |
2778 | if (is_replayable_error(rc) && | |
2779 | smb2_should_replay(tcon, &retries, &cur_sleep)) | |
2780 | goto replay_again; | |
2781 | ||
07d3b2e4 RS |
2782 | return rc; |
2783 | } | |
2784 | ||
2785 | static int | |
2786 | smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
0f060936 | 2787 | struct cifs_sb_info *cifs_sb, struct kstatfs *buf) |
07d3b2e4 RS |
2788 | { |
2789 | struct smb2_query_info_rsp *rsp; | |
2790 | struct smb2_fs_full_size_info *info = NULL; | |
07d3b2e4 RS |
2791 | struct kvec rsp_iov = {NULL, 0}; |
2792 | int buftype = CIFS_NO_BUFFER; | |
2793 | int rc; | |
2794 | ||
2795 | ||
5e0c969e | 2796 | rc = smb2_query_info_compound(xid, tcon, "", |
07d3b2e4 RS |
2797 | FILE_READ_ATTRIBUTES, |
2798 | FS_FULL_SIZE_INFORMATION, | |
2799 | SMB2_O_INFO_FILESYSTEM, | |
2800 | sizeof(struct smb2_fs_full_size_info), | |
87f93d82 | 2801 | &rsp_iov, &buftype, cifs_sb); |
730928c8 RS |
2802 | if (rc) |
2803 | goto qfs_exit; | |
2804 | ||
07d3b2e4 | 2805 | rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; |
dea29037 | 2806 | buf->f_type = SMB2_SUPER_MAGIC; |
730928c8 RS |
2807 | info = (struct smb2_fs_full_size_info *)( |
2808 | le16_to_cpu(rsp->OutputBufferOffset) + (char *)rsp); | |
2809 | rc = smb2_validate_iov(le16_to_cpu(rsp->OutputBufferOffset), | |
2810 | le32_to_cpu(rsp->OutputBufferLength), | |
07d3b2e4 | 2811 | &rsp_iov, |
730928c8 RS |
2812 | sizeof(struct smb2_fs_full_size_info)); |
2813 | if (!rc) | |
2814 | smb2_copy_fs_info_to_kstatfs(info, buf); | |
2815 | ||
2816 | qfs_exit: | |
feeec636 | 2817 | trace_smb3_qfs_done(xid, tcon->tid, tcon->ses->Suid, tcon->tree_name, rc); |
07d3b2e4 | 2818 | free_rsp_buf(buftype, rsp_iov.iov_base); |
6fc05c25 PS |
2819 | return rc; |
2820 | } | |
2821 | ||
2d304217 SF |
2822 | static int |
2823 | smb311_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
0f060936 | 2824 | struct cifs_sb_info *cifs_sb, struct kstatfs *buf) |
2d304217 SF |
2825 | { |
2826 | int rc; | |
2827 | __le16 srch_path = 0; /* Null - open root of share */ | |
2828 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2829 | struct cifs_open_parms oparms; | |
2830 | struct cifs_fid fid; | |
2831 | ||
2832 | if (!tcon->posix_extensions) | |
0f060936 | 2833 | return smb2_queryfs(xid, tcon, cifs_sb, buf); |
2d304217 | 2834 | |
de036dca VL |
2835 | oparms = (struct cifs_open_parms) { |
2836 | .tcon = tcon, | |
fddc6ccc | 2837 | .path = "", |
de036dca VL |
2838 | .desired_access = FILE_READ_ATTRIBUTES, |
2839 | .disposition = FILE_OPEN, | |
2840 | .create_options = cifs_create_options(cifs_sb, 0), | |
2841 | .fid = &fid, | |
2842 | }; | |
2d304217 | 2843 | |
69dda305 AA |
2844 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, |
2845 | NULL, NULL); | |
2d304217 SF |
2846 | if (rc) |
2847 | return rc; | |
2848 | ||
2849 | rc = SMB311_posix_qfs_info(xid, tcon, fid.persistent_fid, | |
2850 | fid.volatile_fid, buf); | |
dea29037 | 2851 | buf->f_type = SMB2_SUPER_MAGIC; |
2d304217 SF |
2852 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
2853 | return rc; | |
2854 | } | |
2d304217 | 2855 | |
027e8eec PS |
2856 | static bool |
2857 | smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2) | |
2858 | { | |
2859 | return ob1->fid.persistent_fid == ob2->fid.persistent_fid && | |
2860 | ob1->fid.volatile_fid == ob2->fid.volatile_fid; | |
2861 | } | |
2862 | ||
f7ba7fe6 PS |
2863 | static int |
2864 | smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, | |
2865 | __u64 length, __u32 type, int lock, int unlock, bool wait) | |
2866 | { | |
2867 | if (unlock && !lock) | |
2868 | type = SMB2_LOCKFLAG_UNLOCK; | |
2869 | return SMB2_lock(xid, tlink_tcon(cfile->tlink), | |
2870 | cfile->fid.persistent_fid, cfile->fid.volatile_fid, | |
2871 | current->tgid, length, offset, type, wait); | |
2872 | } | |
2873 | ||
b8c32dbb PS |
2874 | static void |
2875 | smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid) | |
2876 | { | |
2877 | memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE); | |
2878 | } | |
2879 | ||
2880 | static void | |
2881 | smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid) | |
2882 | { | |
2883 | memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE); | |
2884 | } | |
2885 | ||
2886 | static void | |
2887 | smb2_new_lease_key(struct cifs_fid *fid) | |
2888 | { | |
fa70b87c | 2889 | generate_random_uuid(fid->lease_key); |
b8c32dbb PS |
2890 | } |
2891 | ||
9d49640a AA |
2892 | static int |
2893 | smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, | |
2894 | const char *search_name, | |
2895 | struct dfs_info3_param **target_nodes, | |
2896 | unsigned int *num_of_nodes, | |
2897 | const struct nls_table *nls_codepage, int remap) | |
2898 | { | |
2899 | int rc; | |
2900 | __le16 *utf16_path = NULL; | |
2901 | int utf16_path_len = 0; | |
2902 | struct cifs_tcon *tcon; | |
2903 | struct fsctl_get_dfs_referral_req *dfs_req = NULL; | |
2904 | struct get_dfs_referral_rsp *dfs_rsp = NULL; | |
2905 | u32 dfs_req_size = 0, dfs_rsp_size = 0; | |
c88f7dcd | 2906 | int retry_count = 0; |
9d49640a | 2907 | |
a205d500 | 2908 | cifs_dbg(FYI, "%s: path: %s\n", __func__, search_name); |
9d49640a AA |
2909 | |
2910 | /* | |
63a83b86 | 2911 | * Try to use the IPC tcon, otherwise just use any |
9d49640a | 2912 | */ |
63a83b86 AA |
2913 | tcon = ses->tcon_ipc; |
2914 | if (tcon == NULL) { | |
2915 | spin_lock(&cifs_tcp_ses_lock); | |
2916 | tcon = list_first_entry_or_null(&ses->tcon_list, | |
2917 | struct cifs_tcon, | |
2918 | tcon_list); | |
afc23feb | 2919 | if (tcon) { |
63a83b86 | 2920 | tcon->tc_count++; |
afc23feb DH |
2921 | trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count, |
2922 | netfs_trace_tcon_ref_get_dfs_refer); | |
2923 | } | |
63a83b86 AA |
2924 | spin_unlock(&cifs_tcp_ses_lock); |
2925 | } | |
2926 | ||
2927 | if (tcon == NULL) { | |
9d49640a AA |
2928 | cifs_dbg(VFS, "session %p has no tcon available for a dfs referral request\n", |
2929 | ses); | |
2930 | rc = -ENOTCONN; | |
2931 | goto out; | |
2932 | } | |
2933 | ||
2934 | utf16_path = cifs_strndup_to_utf16(search_name, PATH_MAX, | |
2935 | &utf16_path_len, | |
2936 | nls_codepage, remap); | |
2937 | if (!utf16_path) { | |
2938 | rc = -ENOMEM; | |
2939 | goto out; | |
2940 | } | |
2941 | ||
2942 | dfs_req_size = sizeof(*dfs_req) + utf16_path_len; | |
2943 | dfs_req = kzalloc(dfs_req_size, GFP_KERNEL); | |
2944 | if (!dfs_req) { | |
2945 | rc = -ENOMEM; | |
2946 | goto out; | |
2947 | } | |
2948 | ||
2949 | /* Highest DFS referral version understood */ | |
2950 | dfs_req->MaxReferralLevel = DFS_VERSION; | |
2951 | ||
2952 | /* Path to resolve in an UTF-16 null-terminated string */ | |
2953 | memcpy(dfs_req->RequestFileName, utf16_path, utf16_path_len); | |
2954 | ||
2955 | do { | |
9d49640a AA |
2956 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, |
2957 | FSCTL_DFS_GET_REFERRALS, | |
153322f7 | 2958 | (char *)dfs_req, dfs_req_size, CIFSMaxBufSize, |
9d49640a | 2959 | (char **)&dfs_rsp, &dfs_rsp_size); |
c88f7dcd PA |
2960 | if (!is_retryable_error(rc)) |
2961 | break; | |
2962 | usleep_range(512, 2048); | |
2963 | } while (++retry_count < 5); | |
9d49640a | 2964 | |
92414333 PA |
2965 | if (!rc && !dfs_rsp) |
2966 | rc = -EIO; | |
9d49640a | 2967 | if (rc) { |
c88f7dcd PA |
2968 | if (!is_retryable_error(rc) && rc != -ENOENT && rc != -EOPNOTSUPP) |
2969 | cifs_tcon_dbg(VFS, "%s: ioctl error: rc=%d\n", __func__, rc); | |
9d49640a AA |
2970 | goto out; |
2971 | } | |
2972 | ||
2973 | rc = parse_dfs_referrals(dfs_rsp, dfs_rsp_size, | |
2974 | num_of_nodes, target_nodes, | |
2975 | nls_codepage, remap, search_name, | |
2976 | true /* is_unicode */); | |
2977 | if (rc) { | |
3175eb9b | 2978 | cifs_tcon_dbg(VFS, "parse error in %s rc=%d\n", __func__, rc); |
9d49640a AA |
2979 | goto out; |
2980 | } | |
2981 | ||
2982 | out: | |
63a83b86 AA |
2983 | if (tcon && !tcon->ipc) { |
2984 | /* ipc tcons are not refcounted */ | |
9d49640a AA |
2985 | spin_lock(&cifs_tcp_ses_lock); |
2986 | tcon->tc_count--; | |
afc23feb DH |
2987 | trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count, |
2988 | netfs_trace_tcon_ref_dec_dfs_refer); | |
16dd9b8c SP |
2989 | /* tc_count can never go negative */ |
2990 | WARN_ON(tcon->tc_count < 0); | |
9d49640a AA |
2991 | spin_unlock(&cifs_tcp_ses_lock); |
2992 | } | |
2993 | kfree(utf16_path); | |
2994 | kfree(dfs_req); | |
2995 | kfree(dfs_rsp); | |
2996 | return rc; | |
2997 | } | |
5de254dc | 2998 | |
2f1afe25 SP |
2999 | static struct cifs_ntsd * |
3000 | get_smb2_acl_by_fid(struct cifs_sb_info *cifs_sb, | |
3970acf7 | 3001 | const struct cifs_fid *cifsfid, u32 *pacllen, u32 info) |
2f1afe25 SP |
3002 | { |
3003 | struct cifs_ntsd *pntsd = NULL; | |
3004 | unsigned int xid; | |
3005 | int rc = -EOPNOTSUPP; | |
3006 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
3007 | ||
3008 | if (IS_ERR(tlink)) | |
3009 | return ERR_CAST(tlink); | |
3010 | ||
3011 | xid = get_xid(); | |
3012 | cifs_dbg(FYI, "trying to get acl\n"); | |
3013 | ||
3014 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), cifsfid->persistent_fid, | |
3970acf7 BP |
3015 | cifsfid->volatile_fid, (void **)&pntsd, pacllen, |
3016 | info); | |
2f1afe25 SP |
3017 | free_xid(xid); |
3018 | ||
3019 | cifs_put_tlink(tlink); | |
3020 | ||
3021 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
3022 | if (rc) | |
3023 | return ERR_PTR(rc); | |
3024 | return pntsd; | |
3025 | ||
3026 | } | |
3027 | ||
3028 | static struct cifs_ntsd * | |
3029 | get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb, | |
3970acf7 | 3030 | const char *path, u32 *pacllen, u32 info) |
2f1afe25 SP |
3031 | { |
3032 | struct cifs_ntsd *pntsd = NULL; | |
3033 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
3034 | unsigned int xid; | |
3035 | int rc; | |
3036 | struct cifs_tcon *tcon; | |
3037 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
3038 | struct cifs_fid fid; | |
3039 | struct cifs_open_parms oparms; | |
3040 | __le16 *utf16_path; | |
3041 | ||
3042 | cifs_dbg(FYI, "get smb3 acl for path %s\n", path); | |
3043 | if (IS_ERR(tlink)) | |
3044 | return ERR_CAST(tlink); | |
3045 | ||
3046 | tcon = tlink_tcon(tlink); | |
3047 | xid = get_xid(); | |
3048 | ||
2f1afe25 | 3049 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); |
cfe89091 SF |
3050 | if (!utf16_path) { |
3051 | rc = -ENOMEM; | |
3052 | free_xid(xid); | |
3053 | return ERR_PTR(rc); | |
3054 | } | |
2f1afe25 | 3055 | |
de036dca VL |
3056 | oparms = (struct cifs_open_parms) { |
3057 | .tcon = tcon, | |
fddc6ccc | 3058 | .path = path, |
de036dca VL |
3059 | .desired_access = READ_CONTROL, |
3060 | .disposition = FILE_OPEN, | |
3061 | /* | |
3062 | * When querying an ACL, even if the file is a symlink | |
3063 | * we want to open the source not the target, and so | |
3064 | * the protocol requires that the client specify this | |
3065 | * flag when opening a reparse point | |
3066 | */ | |
3067 | .create_options = cifs_create_options(cifs_sb, 0) | | |
3068 | OPEN_REPARSE_POINT, | |
3069 | .fid = &fid, | |
3070 | }; | |
2f1afe25 | 3071 | |
3970acf7 BP |
3072 | if (info & SACL_SECINFO) |
3073 | oparms.desired_access |= SYSTEM_SECURITY; | |
3074 | ||
69dda305 AA |
3075 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL, |
3076 | NULL); | |
2f1afe25 SP |
3077 | kfree(utf16_path); |
3078 | if (!rc) { | |
3079 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
3970acf7 BP |
3080 | fid.volatile_fid, (void **)&pntsd, pacllen, |
3081 | info); | |
2f1afe25 SP |
3082 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
3083 | } | |
3084 | ||
3085 | cifs_put_tlink(tlink); | |
3086 | free_xid(xid); | |
3087 | ||
3088 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
3089 | if (rc) | |
3090 | return ERR_PTR(rc); | |
3091 | return pntsd; | |
3092 | } | |
3093 | ||
366ed846 SP |
3094 | static int |
3095 | set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen, | |
3096 | struct inode *inode, const char *path, int aclflag) | |
3097 | { | |
3098 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
3099 | unsigned int xid; | |
3100 | int rc, access_flags = 0; | |
3101 | struct cifs_tcon *tcon; | |
3102 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
3103 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
3104 | struct cifs_fid fid; | |
3105 | struct cifs_open_parms oparms; | |
3106 | __le16 *utf16_path; | |
3107 | ||
3108 | cifs_dbg(FYI, "set smb3 acl for path %s\n", path); | |
3109 | if (IS_ERR(tlink)) | |
3110 | return PTR_ERR(tlink); | |
3111 | ||
3112 | tcon = tlink_tcon(tlink); | |
3113 | xid = get_xid(); | |
3114 | ||
3970acf7 BP |
3115 | if (aclflag & CIFS_ACL_OWNER || aclflag & CIFS_ACL_GROUP) |
3116 | access_flags |= WRITE_OWNER; | |
3117 | if (aclflag & CIFS_ACL_SACL) | |
3118 | access_flags |= SYSTEM_SECURITY; | |
3119 | if (aclflag & CIFS_ACL_DACL) | |
3120 | access_flags |= WRITE_DAC; | |
366ed846 SP |
3121 | |
3122 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
cfe89091 SF |
3123 | if (!utf16_path) { |
3124 | rc = -ENOMEM; | |
3125 | free_xid(xid); | |
3126 | return rc; | |
3127 | } | |
366ed846 | 3128 | |
de036dca VL |
3129 | oparms = (struct cifs_open_parms) { |
3130 | .tcon = tcon, | |
3131 | .desired_access = access_flags, | |
3132 | .create_options = cifs_create_options(cifs_sb, 0), | |
3133 | .disposition = FILE_OPEN, | |
3134 | .path = path, | |
3135 | .fid = &fid, | |
3136 | }; | |
366ed846 | 3137 | |
69dda305 AA |
3138 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, |
3139 | NULL, NULL); | |
366ed846 SP |
3140 | kfree(utf16_path); |
3141 | if (!rc) { | |
3142 | rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
3143 | fid.volatile_fid, pnntsd, acllen, aclflag); | |
3144 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
3145 | } | |
3146 | ||
3147 | cifs_put_tlink(tlink); | |
3148 | free_xid(xid); | |
3149 | return rc; | |
3150 | } | |
366ed846 | 3151 | |
2f1afe25 SP |
3152 | /* Retrieve an ACL from the server */ |
3153 | static struct cifs_ntsd * | |
3154 | get_smb2_acl(struct cifs_sb_info *cifs_sb, | |
3970acf7 BP |
3155 | struct inode *inode, const char *path, |
3156 | u32 *pacllen, u32 info) | |
2f1afe25 SP |
3157 | { |
3158 | struct cifs_ntsd *pntsd = NULL; | |
3159 | struct cifsFileInfo *open_file = NULL; | |
3160 | ||
9541b813 | 3161 | if (inode && !(info & SACL_SECINFO)) |
2f1afe25 | 3162 | open_file = find_readable_file(CIFS_I(inode), true); |
9541b813 | 3163 | if (!open_file || (info & SACL_SECINFO)) |
3970acf7 | 3164 | return get_smb2_acl_by_path(cifs_sb, path, pacllen, info); |
2f1afe25 | 3165 | |
3970acf7 | 3166 | pntsd = get_smb2_acl_by_fid(cifs_sb, &open_file->fid, pacllen, info); |
2f1afe25 SP |
3167 | cifsFileInfo_put(open_file); |
3168 | return pntsd; | |
3169 | } | |
2f1afe25 | 3170 | |
c919c164 DH |
3171 | static long smb3_zero_data(struct file *file, struct cifs_tcon *tcon, |
3172 | loff_t offset, loff_t len, unsigned int xid) | |
3173 | { | |
3174 | struct cifsFileInfo *cfile = file->private_data; | |
3175 | struct file_zero_data_information fsctl_buf; | |
3176 | ||
3177 | cifs_dbg(FYI, "Offset %lld len %lld\n", offset, len); | |
3178 | ||
3179 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
3180 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
3181 | ||
3182 | return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3183 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
3184 | (char *)&fsctl_buf, | |
3185 | sizeof(struct file_zero_data_information), | |
3186 | 0, NULL, NULL); | |
3187 | } | |
3188 | ||
30175628 SF |
3189 | static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon, |
3190 | loff_t offset, loff_t len, bool keep_size) | |
3191 | { | |
72c419d9 | 3192 | struct cifs_ses *ses = tcon->ses; |
c919c164 DH |
3193 | struct inode *inode = file_inode(file); |
3194 | struct cifsInodeInfo *cifsi = CIFS_I(inode); | |
30175628 | 3195 | struct cifsFileInfo *cfile = file->private_data; |
83d5518b | 3196 | unsigned long long new_size; |
30175628 SF |
3197 | long rc; |
3198 | unsigned int xid; | |
3199 | ||
3200 | xid = get_xid(); | |
3201 | ||
a205d500 | 3202 | trace_smb3_zero_enter(xid, cfile->fid.persistent_fid, tcon->tid, |
779ede04 SF |
3203 | ses->Suid, offset, len); |
3204 | ||
c919c164 DH |
3205 | inode_lock(inode); |
3206 | filemap_invalidate_lock(inode->i_mapping); | |
3207 | ||
6b690402 ZX |
3208 | /* |
3209 | * We zero the range through ioctl, so we need remove the page caches | |
3210 | * first, otherwise the data may be inconsistent with the server. | |
3211 | */ | |
3212 | truncate_pagecache_range(inode, offset, offset + len - 1); | |
779ede04 | 3213 | |
30175628 | 3214 | /* if file not oplocked can't be sure whether asking to extend size */ |
c919c164 DH |
3215 | rc = -EOPNOTSUPP; |
3216 | if (keep_size == false && !CIFS_CACHE_READ(cifsi)) | |
3217 | goto zero_range_exit; | |
30175628 | 3218 | |
c919c164 DH |
3219 | rc = smb3_zero_data(file, tcon, offset, len, xid); |
3220 | if (rc < 0) | |
72c419d9 RS |
3221 | goto zero_range_exit; |
3222 | ||
3223 | /* | |
3224 | * do we also need to change the size of the file? | |
3225 | */ | |
83d5518b DH |
3226 | new_size = offset + len; |
3227 | if (keep_size == false && (unsigned long long)i_size_read(inode) < new_size) { | |
c425014a | 3228 | rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
6ebfede8 | 3229 | cfile->fid.volatile_fid, cfile->pid, new_size); |
83d5518b DH |
3230 | if (rc >= 0) { |
3231 | truncate_setsize(inode, new_size); | |
966cc171 DH |
3232 | netfs_resize_file(&cifsi->netfs, new_size, true); |
3233 | if (offset < cifsi->netfs.zero_point) | |
3234 | cifsi->netfs.zero_point = offset; | |
83d5518b DH |
3235 | fscache_resize_cookie(cifs_inode_cookie(inode), new_size); |
3236 | } | |
72c419d9 RS |
3237 | } |
3238 | ||
72c419d9 | 3239 | zero_range_exit: |
c919c164 DH |
3240 | filemap_invalidate_unlock(inode->i_mapping); |
3241 | inode_unlock(inode); | |
30175628 | 3242 | free_xid(xid); |
779ede04 SF |
3243 | if (rc) |
3244 | trace_smb3_zero_err(xid, cfile->fid.persistent_fid, tcon->tid, | |
3245 | ses->Suid, offset, len, rc); | |
3246 | else | |
3247 | trace_smb3_zero_done(xid, cfile->fid.persistent_fid, tcon->tid, | |
3248 | ses->Suid, offset, len); | |
30175628 SF |
3249 | return rc; |
3250 | } | |
3251 | ||
31742c5a SF |
3252 | static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon, |
3253 | loff_t offset, loff_t len) | |
3254 | { | |
ba080305 | 3255 | struct inode *inode = file_inode(file); |
31742c5a SF |
3256 | struct cifsFileInfo *cfile = file->private_data; |
3257 | struct file_zero_data_information fsctl_buf; | |
3258 | long rc; | |
3259 | unsigned int xid; | |
3260 | __u8 set_sparse = 1; | |
3261 | ||
3262 | xid = get_xid(); | |
3263 | ||
ba080305 | 3264 | inode_lock(inode); |
31742c5a SF |
3265 | /* Need to make file sparse, if not already, before freeing range. */ |
3266 | /* Consider adding equivalent for compressed since it could also work */ | |
cfe89091 SF |
3267 | if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse)) { |
3268 | rc = -EOPNOTSUPP; | |
ba080305 | 3269 | goto out; |
cfe89091 | 3270 | } |
31742c5a | 3271 | |
b092b3ef | 3272 | filemap_invalidate_lock(inode->i_mapping); |
acc91c2d ZX |
3273 | /* |
3274 | * We implement the punch hole through ioctl, so we need remove the page | |
3275 | * caches first, otherwise the data may be inconsistent with the server. | |
3276 | */ | |
3277 | truncate_pagecache_range(inode, offset, offset + len - 1); | |
3278 | ||
a205d500 | 3279 | cifs_dbg(FYI, "Offset %lld len %lld\n", offset, len); |
31742c5a SF |
3280 | |
3281 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
3282 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
3283 | ||
3284 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3285 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
400d0ad6 | 3286 | (char *)&fsctl_buf, |
153322f7 SF |
3287 | sizeof(struct file_zero_data_information), |
3288 | CIFSMaxBufSize, NULL, NULL); | |
b092b3ef | 3289 | filemap_invalidate_unlock(inode->i_mapping); |
ba080305 DH |
3290 | out: |
3291 | inode_unlock(inode); | |
3292 | free_xid(xid); | |
31742c5a SF |
3293 | return rc; |
3294 | } | |
3295 | ||
966a3cb7 RS |
3296 | static int smb3_simple_fallocate_write_range(unsigned int xid, |
3297 | struct cifs_tcon *tcon, | |
3298 | struct cifsFileInfo *cfile, | |
3299 | loff_t off, loff_t len, | |
3300 | char *buf) | |
3301 | { | |
3302 | struct cifs_io_parms io_parms = {0}; | |
5ad4df56 SF |
3303 | int nbytes; |
3304 | int rc = 0; | |
966a3cb7 RS |
3305 | struct kvec iov[2]; |
3306 | ||
3307 | io_parms.netfid = cfile->fid.netfid; | |
3308 | io_parms.pid = current->tgid; | |
3309 | io_parms.tcon = tcon; | |
3310 | io_parms.persistent_fid = cfile->fid.persistent_fid; | |
3311 | io_parms.volatile_fid = cfile->fid.volatile_fid; | |
966a3cb7 | 3312 | |
2485bd75 RS |
3313 | while (len) { |
3314 | io_parms.offset = off; | |
3315 | io_parms.length = len; | |
3316 | if (io_parms.length > SMB2_MAX_BUFFER_SIZE) | |
3317 | io_parms.length = SMB2_MAX_BUFFER_SIZE; | |
3318 | /* iov[0] is reserved for smb header */ | |
3319 | iov[1].iov_base = buf; | |
3320 | iov[1].iov_len = io_parms.length; | |
3321 | rc = SMB2_write(xid, &io_parms, &nbytes, iov, 1); | |
3322 | if (rc) | |
3323 | break; | |
3324 | if (nbytes > len) | |
3325 | return -EINVAL; | |
3326 | buf += nbytes; | |
3327 | off += nbytes; | |
3328 | len -= nbytes; | |
3329 | } | |
3330 | return rc; | |
966a3cb7 RS |
3331 | } |
3332 | ||
3333 | static int smb3_simple_fallocate_range(unsigned int xid, | |
3334 | struct cifs_tcon *tcon, | |
3335 | struct cifsFileInfo *cfile, | |
3336 | loff_t off, loff_t len) | |
3337 | { | |
3338 | struct file_allocated_range_buffer in_data, *out_data = NULL, *tmp_data; | |
3339 | u32 out_data_len; | |
3340 | char *buf = NULL; | |
3341 | loff_t l; | |
3342 | int rc; | |
3343 | ||
3344 | in_data.file_offset = cpu_to_le64(off); | |
3345 | in_data.length = cpu_to_le64(len); | |
3346 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3347 | cfile->fid.volatile_fid, | |
400d0ad6 | 3348 | FSCTL_QUERY_ALLOCATED_RANGES, |
966a3cb7 RS |
3349 | (char *)&in_data, sizeof(in_data), |
3350 | 1024 * sizeof(struct file_allocated_range_buffer), | |
3351 | (char **)&out_data, &out_data_len); | |
3352 | if (rc) | |
3353 | goto out; | |
966a3cb7 RS |
3354 | |
3355 | buf = kzalloc(1024 * 1024, GFP_KERNEL); | |
3356 | if (buf == NULL) { | |
3357 | rc = -ENOMEM; | |
3358 | goto out; | |
3359 | } | |
3360 | ||
3361 | tmp_data = out_data; | |
3362 | while (len) { | |
3363 | /* | |
3364 | * The rest of the region is unmapped so write it all. | |
3365 | */ | |
3366 | if (out_data_len == 0) { | |
3367 | rc = smb3_simple_fallocate_write_range(xid, tcon, | |
3368 | cfile, off, len, buf); | |
3369 | goto out; | |
3370 | } | |
3371 | ||
3372 | if (out_data_len < sizeof(struct file_allocated_range_buffer)) { | |
3373 | rc = -EINVAL; | |
3374 | goto out; | |
3375 | } | |
3376 | ||
3377 | if (off < le64_to_cpu(tmp_data->file_offset)) { | |
3378 | /* | |
3379 | * We are at a hole. Write until the end of the region | |
3380 | * or until the next allocated data, | |
3381 | * whichever comes next. | |
3382 | */ | |
3383 | l = le64_to_cpu(tmp_data->file_offset) - off; | |
3384 | if (len < l) | |
3385 | l = len; | |
3386 | rc = smb3_simple_fallocate_write_range(xid, tcon, | |
3387 | cfile, off, l, buf); | |
3388 | if (rc) | |
3389 | goto out; | |
3390 | off = off + l; | |
3391 | len = len - l; | |
3392 | if (len == 0) | |
3393 | goto out; | |
3394 | } | |
3395 | /* | |
3396 | * We are at a section of allocated data, just skip forward | |
3397 | * until the end of the data or the end of the region | |
3398 | * we are supposed to fallocate, whichever comes first. | |
3399 | */ | |
3400 | l = le64_to_cpu(tmp_data->length); | |
3401 | if (len < l) | |
3402 | l = len; | |
3403 | off += l; | |
3404 | len -= l; | |
3405 | ||
3406 | tmp_data = &tmp_data[1]; | |
3407 | out_data_len -= sizeof(struct file_allocated_range_buffer); | |
3408 | } | |
3409 | ||
3410 | out: | |
3411 | kfree(out_data); | |
3412 | kfree(buf); | |
3413 | return rc; | |
3414 | } | |
3415 | ||
3416 | ||
9ccf3216 SF |
3417 | static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, |
3418 | loff_t off, loff_t len, bool keep_size) | |
3419 | { | |
3420 | struct inode *inode; | |
3421 | struct cifsInodeInfo *cifsi; | |
3422 | struct cifsFileInfo *cfile = file->private_data; | |
3423 | long rc = -EOPNOTSUPP; | |
3424 | unsigned int xid; | |
6ebfede8 | 3425 | loff_t new_eof; |
9ccf3216 SF |
3426 | |
3427 | xid = get_xid(); | |
3428 | ||
2b0143b5 | 3429 | inode = d_inode(cfile->dentry); |
9ccf3216 SF |
3430 | cifsi = CIFS_I(inode); |
3431 | ||
779ede04 SF |
3432 | trace_smb3_falloc_enter(xid, cfile->fid.persistent_fid, tcon->tid, |
3433 | tcon->ses->Suid, off, len); | |
9ccf3216 SF |
3434 | /* if file not oplocked can't be sure whether asking to extend size */ |
3435 | if (!CIFS_CACHE_READ(cifsi)) | |
cfe89091 | 3436 | if (keep_size == false) { |
779ede04 SF |
3437 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, |
3438 | tcon->tid, tcon->ses->Suid, off, len, rc); | |
cfe89091 SF |
3439 | free_xid(xid); |
3440 | return rc; | |
3441 | } | |
9ccf3216 | 3442 | |
8bd0d701 RS |
3443 | /* |
3444 | * Extending the file | |
3445 | */ | |
3446 | if ((keep_size == false) && i_size_read(inode) < off + len) { | |
ef4a632c MZ |
3447 | rc = inode_newsize_ok(inode, off + len); |
3448 | if (rc) | |
3449 | goto out; | |
3450 | ||
f66f8b94 | 3451 | if (cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) |
8bd0d701 RS |
3452 | smb2_set_sparse(xid, tcon, cfile, inode, false); |
3453 | ||
6ebfede8 | 3454 | new_eof = off + len; |
8bd0d701 | 3455 | rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
6ebfede8 | 3456 | cfile->fid.volatile_fid, cfile->pid, new_eof); |
8bd0d701 | 3457 | if (rc == 0) { |
966cc171 | 3458 | netfs_resize_file(&cifsi->netfs, new_eof, true); |
6ebfede8 | 3459 | cifs_setsize(inode, new_eof); |
8bd0d701 | 3460 | cifs_truncate_page(inode->i_mapping, inode->i_size); |
6ebfede8 | 3461 | truncate_setsize(inode, new_eof); |
8bd0d701 RS |
3462 | } |
3463 | goto out; | |
3464 | } | |
3465 | ||
9ccf3216 SF |
3466 | /* |
3467 | * Files are non-sparse by default so falloc may be a no-op | |
8bd0d701 RS |
3468 | * Must check if file sparse. If not sparse, and since we are not |
3469 | * extending then no need to do anything since file already allocated | |
9ccf3216 SF |
3470 | */ |
3471 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) { | |
8bd0d701 RS |
3472 | rc = 0; |
3473 | goto out; | |
9ccf3216 SF |
3474 | } |
3475 | ||
488968a8 RS |
3476 | if (keep_size == true) { |
3477 | /* | |
3478 | * We can not preallocate pages beyond the end of the file | |
3479 | * in SMB2 | |
3480 | */ | |
3481 | if (off >= i_size_read(inode)) { | |
3482 | rc = 0; | |
3483 | goto out; | |
3484 | } | |
3485 | /* | |
3486 | * For fallocates that are partially beyond the end of file, | |
3487 | * clamp len so we only fallocate up to the end of file. | |
3488 | */ | |
3489 | if (off + len > i_size_read(inode)) { | |
3490 | len = i_size_read(inode) - off; | |
3491 | } | |
3492 | } | |
3493 | ||
9ccf3216 | 3494 | if ((keep_size == true) || (i_size_read(inode) >= off + len)) { |
966a3cb7 RS |
3495 | /* |
3496 | * At this point, we are trying to fallocate an internal | |
3497 | * regions of a sparse file. Since smb2 does not have a | |
3498 | * fallocate command we have two otions on how to emulate this. | |
3499 | * We can either turn the entire file to become non-sparse | |
3500 | * which we only do if the fallocate is for virtually | |
3501 | * the whole file, or we can overwrite the region with zeroes | |
3502 | * using SMB2_write, which could be prohibitevly expensive | |
3503 | * if len is large. | |
3504 | */ | |
3505 | /* | |
3506 | * We are only trying to fallocate a small region so | |
3507 | * just write it with zero. | |
3508 | */ | |
3509 | if (len <= 1024 * 1024) { | |
3510 | rc = smb3_simple_fallocate_range(xid, tcon, cfile, | |
3511 | off, len); | |
3512 | goto out; | |
3513 | } | |
3514 | ||
9ccf3216 SF |
3515 | /* |
3516 | * Check if falloc starts within first few pages of file | |
3517 | * and ends within a few pages of the end of file to | |
3518 | * ensure that most of file is being forced to be | |
3519 | * fallocated now. If so then setting whole file sparse | |
3520 | * ie potentially making a few extra pages at the beginning | |
3521 | * or end of the file non-sparse via set_sparse is harmless. | |
3522 | */ | |
cfe89091 SF |
3523 | if ((off > 8192) || (off + len + 8192 < i_size_read(inode))) { |
3524 | rc = -EOPNOTSUPP; | |
8bd0d701 | 3525 | goto out; |
f1699479 | 3526 | } |
9ccf3216 | 3527 | } |
9ccf3216 | 3528 | |
8bd0d701 RS |
3529 | smb2_set_sparse(xid, tcon, cfile, inode, false); |
3530 | rc = 0; | |
3531 | ||
3532 | out: | |
779ede04 SF |
3533 | if (rc) |
3534 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, tcon->tid, | |
3535 | tcon->ses->Suid, off, len, rc); | |
3536 | else | |
3537 | trace_smb3_falloc_done(xid, cfile->fid.persistent_fid, tcon->tid, | |
3538 | tcon->ses->Suid, off, len); | |
9ccf3216 SF |
3539 | |
3540 | free_xid(xid); | |
3541 | return rc; | |
3542 | } | |
3543 | ||
5476b5dd RS |
3544 | static long smb3_collapse_range(struct file *file, struct cifs_tcon *tcon, |
3545 | loff_t off, loff_t len) | |
3546 | { | |
3547 | int rc; | |
3548 | unsigned int xid; | |
fa30a81f | 3549 | struct inode *inode = file_inode(file); |
fa30a81f | 3550 | struct cifsInodeInfo *cifsi = CIFS_I(inode); |
966cc171 DH |
3551 | struct cifsFileInfo *cfile = file->private_data; |
3552 | struct netfs_inode *ictx = &cifsi->netfs; | |
6ebfede8 | 3553 | loff_t old_eof, new_eof; |
5476b5dd RS |
3554 | |
3555 | xid = get_xid(); | |
3556 | ||
fa30a81f | 3557 | inode_lock(inode); |
84330d41 | 3558 | |
fa30a81f SF |
3559 | old_eof = i_size_read(inode); |
3560 | if ((off >= old_eof) || | |
3561 | off + len >= old_eof) { | |
5476b5dd RS |
3562 | rc = -EINVAL; |
3563 | goto out; | |
3564 | } | |
3565 | ||
fa30a81f | 3566 | filemap_invalidate_lock(inode->i_mapping); |
3e3761f1 SF |
3567 | rc = filemap_write_and_wait_range(inode->i_mapping, off, old_eof - 1); |
3568 | if (rc < 0) | |
3569 | goto out_2; | |
3570 | ||
fa30a81f | 3571 | truncate_pagecache_range(inode, off, old_eof); |
966cc171 | 3572 | ictx->zero_point = old_eof; |
c3a72bb2 | 3573 | |
5476b5dd | 3574 | rc = smb2_copychunk_range(xid, cfile, cfile, off + len, |
fa30a81f | 3575 | old_eof - off - len, off); |
5476b5dd | 3576 | if (rc < 0) |
fa30a81f | 3577 | goto out_2; |
5476b5dd | 3578 | |
6ebfede8 | 3579 | new_eof = old_eof - len; |
5476b5dd | 3580 | rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
6ebfede8 | 3581 | cfile->fid.volatile_fid, cfile->pid, new_eof); |
5476b5dd | 3582 | if (rc < 0) |
fa30a81f | 3583 | goto out_2; |
5476b5dd RS |
3584 | |
3585 | rc = 0; | |
84330d41 | 3586 | |
966cc171 DH |
3587 | truncate_setsize(inode, new_eof); |
3588 | netfs_resize_file(&cifsi->netfs, new_eof, true); | |
3589 | ictx->zero_point = new_eof; | |
3590 | fscache_resize_cookie(cifs_inode_cookie(inode), new_eof); | |
fa30a81f SF |
3591 | out_2: |
3592 | filemap_invalidate_unlock(inode->i_mapping); | |
5476b5dd | 3593 | out: |
fa30a81f | 3594 | inode_unlock(inode); |
5476b5dd RS |
3595 | free_xid(xid); |
3596 | return rc; | |
3597 | } | |
3598 | ||
7fe6fe95 RS |
3599 | static long smb3_insert_range(struct file *file, struct cifs_tcon *tcon, |
3600 | loff_t off, loff_t len) | |
3601 | { | |
3602 | int rc; | |
3603 | unsigned int xid; | |
3604 | struct cifsFileInfo *cfile = file->private_data; | |
c3a72bb2 | 3605 | struct inode *inode = file_inode(file); |
966cc171 | 3606 | struct cifsInodeInfo *cifsi = CIFS_I(inode); |
6ebfede8 | 3607 | __u64 count, old_eof, new_eof; |
7fe6fe95 RS |
3608 | |
3609 | xid = get_xid(); | |
3610 | ||
9c8b7a29 DH |
3611 | inode_lock(inode); |
3612 | ||
3613 | old_eof = i_size_read(inode); | |
3614 | if (off >= old_eof) { | |
7fe6fe95 RS |
3615 | rc = -EINVAL; |
3616 | goto out; | |
3617 | } | |
3618 | ||
9c8b7a29 | 3619 | count = old_eof - off; |
6ebfede8 | 3620 | new_eof = old_eof + len; |
c3a72bb2 | 3621 | |
9c8b7a29 | 3622 | filemap_invalidate_lock(inode->i_mapping); |
6ebfede8 | 3623 | rc = filemap_write_and_wait_range(inode->i_mapping, off, new_eof - 1); |
3e3761f1 SF |
3624 | if (rc < 0) |
3625 | goto out_2; | |
9c8b7a29 | 3626 | truncate_pagecache_range(inode, off, old_eof); |
7fe6fe95 RS |
3627 | |
3628 | rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, | |
6ebfede8 | 3629 | cfile->fid.volatile_fid, cfile->pid, new_eof); |
7fe6fe95 | 3630 | if (rc < 0) |
9c8b7a29 | 3631 | goto out_2; |
7fe6fe95 | 3632 | |
6ebfede8 | 3633 | truncate_setsize(inode, new_eof); |
966cc171 | 3634 | netfs_resize_file(&cifsi->netfs, i_size_read(inode), true); |
88010155 DH |
3635 | fscache_resize_cookie(cifs_inode_cookie(inode), i_size_read(inode)); |
3636 | ||
7fe6fe95 RS |
3637 | rc = smb2_copychunk_range(xid, cfile, cfile, off, count, off + len); |
3638 | if (rc < 0) | |
9c8b7a29 | 3639 | goto out_2; |
8a160723 | 3640 | cifsi->netfs.zero_point = new_eof; |
7fe6fe95 | 3641 | |
9c8b7a29 | 3642 | rc = smb3_zero_data(file, tcon, off, len, xid); |
7fe6fe95 | 3643 | if (rc < 0) |
9c8b7a29 | 3644 | goto out_2; |
7fe6fe95 RS |
3645 | |
3646 | rc = 0; | |
9c8b7a29 DH |
3647 | out_2: |
3648 | filemap_invalidate_unlock(inode->i_mapping); | |
7fe6fe95 | 3649 | out: |
9c8b7a29 | 3650 | inode_unlock(inode); |
7fe6fe95 RS |
3651 | free_xid(xid); |
3652 | return rc; | |
3653 | } | |
3654 | ||
dece44e3 RS |
3655 | static loff_t smb3_llseek(struct file *file, struct cifs_tcon *tcon, loff_t offset, int whence) |
3656 | { | |
3657 | struct cifsFileInfo *wrcfile, *cfile = file->private_data; | |
3658 | struct cifsInodeInfo *cifsi; | |
3659 | struct inode *inode; | |
3660 | int rc = 0; | |
3661 | struct file_allocated_range_buffer in_data, *out_data = NULL; | |
3662 | u32 out_data_len; | |
3663 | unsigned int xid; | |
3664 | ||
3665 | if (whence != SEEK_HOLE && whence != SEEK_DATA) | |
3666 | return generic_file_llseek(file, offset, whence); | |
3667 | ||
3668 | inode = d_inode(cfile->dentry); | |
3669 | cifsi = CIFS_I(inode); | |
3670 | ||
3671 | if (offset < 0 || offset >= i_size_read(inode)) | |
3672 | return -ENXIO; | |
3673 | ||
3674 | xid = get_xid(); | |
3675 | /* | |
3676 | * We need to be sure that all dirty pages are written as they | |
3677 | * might fill holes on the server. | |
3678 | * Note that we also MUST flush any written pages since at least | |
3679 | * some servers (Windows2016) will not reflect recent writes in | |
3680 | * QUERY_ALLOCATED_RANGES until SMB2_flush is called. | |
3681 | */ | |
86f740f2 | 3682 | wrcfile = find_writable_file(cifsi, FIND_WR_ANY); |
dece44e3 RS |
3683 | if (wrcfile) { |
3684 | filemap_write_and_wait(inode->i_mapping); | |
3685 | smb2_flush_file(xid, tcon, &wrcfile->fid); | |
3686 | cifsFileInfo_put(wrcfile); | |
3687 | } | |
3688 | ||
3689 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) { | |
3690 | if (whence == SEEK_HOLE) | |
3691 | offset = i_size_read(inode); | |
3692 | goto lseek_exit; | |
3693 | } | |
3694 | ||
3695 | in_data.file_offset = cpu_to_le64(offset); | |
3696 | in_data.length = cpu_to_le64(i_size_read(inode)); | |
3697 | ||
3698 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3699 | cfile->fid.volatile_fid, | |
400d0ad6 | 3700 | FSCTL_QUERY_ALLOCATED_RANGES, |
dece44e3 RS |
3701 | (char *)&in_data, sizeof(in_data), |
3702 | sizeof(struct file_allocated_range_buffer), | |
3703 | (char **)&out_data, &out_data_len); | |
3704 | if (rc == -E2BIG) | |
3705 | rc = 0; | |
3706 | if (rc) | |
3707 | goto lseek_exit; | |
3708 | ||
3709 | if (whence == SEEK_HOLE && out_data_len == 0) | |
3710 | goto lseek_exit; | |
3711 | ||
3712 | if (whence == SEEK_DATA && out_data_len == 0) { | |
3713 | rc = -ENXIO; | |
3714 | goto lseek_exit; | |
3715 | } | |
3716 | ||
3717 | if (out_data_len < sizeof(struct file_allocated_range_buffer)) { | |
3718 | rc = -EINVAL; | |
3719 | goto lseek_exit; | |
3720 | } | |
3721 | if (whence == SEEK_DATA) { | |
3722 | offset = le64_to_cpu(out_data->file_offset); | |
3723 | goto lseek_exit; | |
3724 | } | |
3725 | if (offset < le64_to_cpu(out_data->file_offset)) | |
3726 | goto lseek_exit; | |
3727 | ||
3728 | offset = le64_to_cpu(out_data->file_offset) + le64_to_cpu(out_data->length); | |
3729 | ||
3730 | lseek_exit: | |
3731 | free_xid(xid); | |
3732 | kfree(out_data); | |
3733 | if (!rc) | |
3734 | return vfs_setpos(file, offset, inode->i_sb->s_maxbytes); | |
3735 | else | |
3736 | return rc; | |
3737 | } | |
3738 | ||
2f3ebaba RS |
3739 | static int smb3_fiemap(struct cifs_tcon *tcon, |
3740 | struct cifsFileInfo *cfile, | |
3741 | struct fiemap_extent_info *fei, u64 start, u64 len) | |
3742 | { | |
3743 | unsigned int xid; | |
3744 | struct file_allocated_range_buffer in_data, *out_data; | |
3745 | u32 out_data_len; | |
3746 | int i, num, rc, flags, last_blob; | |
3747 | u64 next; | |
3748 | ||
45dd052e | 3749 | rc = fiemap_prep(d_inode(cfile->dentry), fei, start, &len, 0); |
cddf8a2c CH |
3750 | if (rc) |
3751 | return rc; | |
2f3ebaba RS |
3752 | |
3753 | xid = get_xid(); | |
3754 | again: | |
3755 | in_data.file_offset = cpu_to_le64(start); | |
3756 | in_data.length = cpu_to_le64(len); | |
3757 | ||
3758 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3759 | cfile->fid.volatile_fid, | |
400d0ad6 | 3760 | FSCTL_QUERY_ALLOCATED_RANGES, |
2f3ebaba RS |
3761 | (char *)&in_data, sizeof(in_data), |
3762 | 1024 * sizeof(struct file_allocated_range_buffer), | |
3763 | (char **)&out_data, &out_data_len); | |
3764 | if (rc == -E2BIG) { | |
3765 | last_blob = 0; | |
3766 | rc = 0; | |
3767 | } else | |
3768 | last_blob = 1; | |
3769 | if (rc) | |
3770 | goto out; | |
3771 | ||
979a2665 | 3772 | if (out_data_len && out_data_len < sizeof(struct file_allocated_range_buffer)) { |
2f3ebaba RS |
3773 | rc = -EINVAL; |
3774 | goto out; | |
3775 | } | |
3776 | if (out_data_len % sizeof(struct file_allocated_range_buffer)) { | |
3777 | rc = -EINVAL; | |
3778 | goto out; | |
3779 | } | |
3780 | ||
3781 | num = out_data_len / sizeof(struct file_allocated_range_buffer); | |
3782 | for (i = 0; i < num; i++) { | |
3783 | flags = 0; | |
3784 | if (i == num - 1 && last_blob) | |
3785 | flags |= FIEMAP_EXTENT_LAST; | |
3786 | ||
3787 | rc = fiemap_fill_next_extent(fei, | |
3788 | le64_to_cpu(out_data[i].file_offset), | |
3789 | le64_to_cpu(out_data[i].file_offset), | |
3790 | le64_to_cpu(out_data[i].length), | |
3791 | flags); | |
3792 | if (rc < 0) | |
3793 | goto out; | |
3794 | if (rc == 1) { | |
3795 | rc = 0; | |
3796 | goto out; | |
3797 | } | |
3798 | } | |
3799 | ||
3800 | if (!last_blob) { | |
3801 | next = le64_to_cpu(out_data[num - 1].file_offset) + | |
3802 | le64_to_cpu(out_data[num - 1].length); | |
3803 | len = len - (next - start); | |
3804 | start = next; | |
3805 | goto again; | |
3806 | } | |
3807 | ||
3808 | out: | |
3809 | free_xid(xid); | |
3810 | kfree(out_data); | |
3811 | return rc; | |
3812 | } | |
9ccf3216 | 3813 | |
31742c5a SF |
3814 | static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode, |
3815 | loff_t off, loff_t len) | |
3816 | { | |
3817 | /* KEEP_SIZE already checked for by do_fallocate */ | |
3818 | if (mode & FALLOC_FL_PUNCH_HOLE) | |
3819 | return smb3_punch_hole(file, tcon, off, len); | |
30175628 SF |
3820 | else if (mode & FALLOC_FL_ZERO_RANGE) { |
3821 | if (mode & FALLOC_FL_KEEP_SIZE) | |
3822 | return smb3_zero_range(file, tcon, off, len, true); | |
3823 | return smb3_zero_range(file, tcon, off, len, false); | |
9ccf3216 SF |
3824 | } else if (mode == FALLOC_FL_KEEP_SIZE) |
3825 | return smb3_simple_falloc(file, tcon, off, len, true); | |
5476b5dd RS |
3826 | else if (mode == FALLOC_FL_COLLAPSE_RANGE) |
3827 | return smb3_collapse_range(file, tcon, off, len); | |
7fe6fe95 RS |
3828 | else if (mode == FALLOC_FL_INSERT_RANGE) |
3829 | return smb3_insert_range(file, tcon, off, len); | |
9ccf3216 SF |
3830 | else if (mode == 0) |
3831 | return smb3_simple_falloc(file, tcon, off, len, false); | |
31742c5a SF |
3832 | |
3833 | return -EOPNOTSUPP; | |
3834 | } | |
3835 | ||
c11f1df5 SP |
3836 | static void |
3837 | smb2_downgrade_oplock(struct TCP_Server_Info *server, | |
9bd45408 PS |
3838 | struct cifsInodeInfo *cinode, __u32 oplock, |
3839 | unsigned int epoch, bool *purge_cache) | |
c11f1df5 | 3840 | { |
9bd45408 | 3841 | server->ops->set_oplock_level(cinode, oplock, 0, NULL); |
c11f1df5 SP |
3842 | } |
3843 | ||
7b9b9edb | 3844 | static void |
9bd45408 PS |
3845 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
3846 | unsigned int epoch, bool *purge_cache); | |
3847 | ||
3848 | static void | |
3849 | smb3_downgrade_oplock(struct TCP_Server_Info *server, | |
3850 | struct cifsInodeInfo *cinode, __u32 oplock, | |
3851 | unsigned int epoch, bool *purge_cache) | |
7b9b9edb | 3852 | { |
9bd45408 PS |
3853 | unsigned int old_state = cinode->oplock; |
3854 | unsigned int old_epoch = cinode->epoch; | |
3855 | unsigned int new_state; | |
3856 | ||
3857 | if (epoch > old_epoch) { | |
3858 | smb21_set_oplock_level(cinode, oplock, 0, NULL); | |
3859 | cinode->epoch = epoch; | |
3860 | } | |
3861 | ||
3862 | new_state = cinode->oplock; | |
3863 | *purge_cache = false; | |
3864 | ||
3865 | if ((old_state & CIFS_CACHE_READ_FLG) != 0 && | |
3866 | (new_state & CIFS_CACHE_READ_FLG) == 0) | |
3867 | *purge_cache = true; | |
3868 | else if (old_state == new_state && (epoch - old_epoch > 1)) | |
3869 | *purge_cache = true; | |
7b9b9edb PS |
3870 | } |
3871 | ||
53ef1016 | 3872 | static void |
42873b0a PS |
3873 | smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
3874 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
3875 | { |
3876 | oplock &= 0xFF; | |
0ab95c25 | 3877 | cinode->lease_granted = false; |
53ef1016 PS |
3878 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) |
3879 | return; | |
3880 | if (oplock == SMB2_OPLOCK_LEVEL_BATCH) { | |
42873b0a | 3881 | cinode->oplock = CIFS_CACHE_RHW_FLG; |
53ef1016 | 3882 | cifs_dbg(FYI, "Batch Oplock granted on inode %p\n", |
874c8ca1 | 3883 | &cinode->netfs.inode); |
53ef1016 | 3884 | } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) { |
42873b0a | 3885 | cinode->oplock = CIFS_CACHE_RW_FLG; |
53ef1016 | 3886 | cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n", |
874c8ca1 | 3887 | &cinode->netfs.inode); |
53ef1016 PS |
3888 | } else if (oplock == SMB2_OPLOCK_LEVEL_II) { |
3889 | cinode->oplock = CIFS_CACHE_READ_FLG; | |
3890 | cifs_dbg(FYI, "Level II Oplock granted on inode %p\n", | |
874c8ca1 | 3891 | &cinode->netfs.inode); |
53ef1016 PS |
3892 | } else |
3893 | cinode->oplock = 0; | |
3894 | } | |
3895 | ||
3896 | static void | |
42873b0a PS |
3897 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
3898 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
3899 | { |
3900 | char message[5] = {0}; | |
6a54b2e0 | 3901 | unsigned int new_oplock = 0; |
53ef1016 PS |
3902 | |
3903 | oplock &= 0xFF; | |
0ab95c25 | 3904 | cinode->lease_granted = true; |
53ef1016 PS |
3905 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) |
3906 | return; | |
3907 | ||
a016e279 PS |
3908 | /* Check if the server granted an oplock rather than a lease */ |
3909 | if (oplock & SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
3910 | return smb2_set_oplock_level(cinode, oplock, epoch, | |
3911 | purge_cache); | |
3912 | ||
53ef1016 | 3913 | if (oplock & SMB2_LEASE_READ_CACHING_HE) { |
6a54b2e0 | 3914 | new_oplock |= CIFS_CACHE_READ_FLG; |
53ef1016 PS |
3915 | strcat(message, "R"); |
3916 | } | |
3917 | if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) { | |
6a54b2e0 | 3918 | new_oplock |= CIFS_CACHE_HANDLE_FLG; |
53ef1016 PS |
3919 | strcat(message, "H"); |
3920 | } | |
3921 | if (oplock & SMB2_LEASE_WRITE_CACHING_HE) { | |
6a54b2e0 | 3922 | new_oplock |= CIFS_CACHE_WRITE_FLG; |
53ef1016 PS |
3923 | strcat(message, "W"); |
3924 | } | |
6a54b2e0 | 3925 | if (!new_oplock) |
ebd97796 | 3926 | strscpy(message, "None"); |
6a54b2e0 CP |
3927 | |
3928 | cinode->oplock = new_oplock; | |
53ef1016 | 3929 | cifs_dbg(FYI, "%s Lease granted on inode %p\n", message, |
874c8ca1 | 3930 | &cinode->netfs.inode); |
53ef1016 PS |
3931 | } |
3932 | ||
42873b0a PS |
3933 | static void |
3934 | smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, | |
3935 | unsigned int epoch, bool *purge_cache) | |
3936 | { | |
3937 | unsigned int old_oplock = cinode->oplock; | |
3938 | ||
3939 | smb21_set_oplock_level(cinode, oplock, epoch, purge_cache); | |
3940 | ||
3941 | if (purge_cache) { | |
3942 | *purge_cache = false; | |
3943 | if (old_oplock == CIFS_CACHE_READ_FLG) { | |
3944 | if (cinode->oplock == CIFS_CACHE_READ_FLG && | |
3945 | (epoch - cinode->epoch > 0)) | |
3946 | *purge_cache = true; | |
3947 | else if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
3948 | (epoch - cinode->epoch > 1)) | |
3949 | *purge_cache = true; | |
3950 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
3951 | (epoch - cinode->epoch > 1)) | |
3952 | *purge_cache = true; | |
3953 | else if (cinode->oplock == 0 && | |
3954 | (epoch - cinode->epoch > 0)) | |
3955 | *purge_cache = true; | |
3956 | } else if (old_oplock == CIFS_CACHE_RH_FLG) { | |
3957 | if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
3958 | (epoch - cinode->epoch > 0)) | |
3959 | *purge_cache = true; | |
3960 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
3961 | (epoch - cinode->epoch > 1)) | |
3962 | *purge_cache = true; | |
3963 | } | |
3964 | cinode->epoch = epoch; | |
3965 | } | |
3966 | } | |
3967 | ||
7ef93ffc | 3968 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY |
53ef1016 PS |
3969 | static bool |
3970 | smb2_is_read_op(__u32 oplock) | |
3971 | { | |
3972 | return oplock == SMB2_OPLOCK_LEVEL_II; | |
3973 | } | |
7ef93ffc | 3974 | #endif /* CIFS_ALLOW_INSECURE_LEGACY */ |
53ef1016 PS |
3975 | |
3976 | static bool | |
3977 | smb21_is_read_op(__u32 oplock) | |
3978 | { | |
3979 | return (oplock & SMB2_LEASE_READ_CACHING_HE) && | |
3980 | !(oplock & SMB2_LEASE_WRITE_CACHING_HE); | |
3981 | } | |
3982 | ||
f047390a PS |
3983 | static __le32 |
3984 | map_oplock_to_lease(u8 oplock) | |
3985 | { | |
3986 | if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
113be37d | 3987 | return SMB2_LEASE_WRITE_CACHING_LE | SMB2_LEASE_READ_CACHING_LE; |
f047390a | 3988 | else if (oplock == SMB2_OPLOCK_LEVEL_II) |
113be37d | 3989 | return SMB2_LEASE_READ_CACHING_LE; |
f047390a | 3990 | else if (oplock == SMB2_OPLOCK_LEVEL_BATCH) |
113be37d SF |
3991 | return SMB2_LEASE_HANDLE_CACHING_LE | SMB2_LEASE_READ_CACHING_LE | |
3992 | SMB2_LEASE_WRITE_CACHING_LE; | |
f047390a PS |
3993 | return 0; |
3994 | } | |
3995 | ||
a41a28bd PS |
3996 | static char * |
3997 | smb2_create_lease_buf(u8 *lease_key, u8 oplock) | |
3998 | { | |
3999 | struct create_lease *buf; | |
4000 | ||
4001 | buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL); | |
4002 | if (!buf) | |
4003 | return NULL; | |
4004 | ||
729c0c9d | 4005 | memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE); |
f047390a | 4006 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
a41a28bd PS |
4007 | |
4008 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
4009 | (struct create_lease, lcontext)); | |
4010 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context)); | |
4011 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
4012 | (struct create_lease, Name)); | |
4013 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 4014 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
a41a28bd PS |
4015 | buf->Name[0] = 'R'; |
4016 | buf->Name[1] = 'q'; | |
4017 | buf->Name[2] = 'L'; | |
4018 | buf->Name[3] = 's'; | |
4019 | return (char *)buf; | |
4020 | } | |
4021 | ||
f047390a PS |
4022 | static char * |
4023 | smb3_create_lease_buf(u8 *lease_key, u8 oplock) | |
4024 | { | |
4025 | struct create_lease_v2 *buf; | |
4026 | ||
4027 | buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL); | |
4028 | if (!buf) | |
4029 | return NULL; | |
4030 | ||
729c0c9d | 4031 | memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE); |
f047390a PS |
4032 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
4033 | ||
4034 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
4035 | (struct create_lease_v2, lcontext)); | |
4036 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2)); | |
4037 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
4038 | (struct create_lease_v2, Name)); | |
4039 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 4040 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
f047390a PS |
4041 | buf->Name[0] = 'R'; |
4042 | buf->Name[1] = 'q'; | |
4043 | buf->Name[2] = 'L'; | |
4044 | buf->Name[3] = 's'; | |
4045 | return (char *)buf; | |
4046 | } | |
4047 | ||
b5c7cde3 | 4048 | static __u8 |
96164ab2 | 4049 | smb2_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key) |
b5c7cde3 PS |
4050 | { |
4051 | struct create_lease *lc = (struct create_lease *)buf; | |
4052 | ||
42873b0a | 4053 | *epoch = 0; /* not used */ |
113be37d | 4054 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE) |
b5c7cde3 PS |
4055 | return SMB2_OPLOCK_LEVEL_NOCHANGE; |
4056 | return le32_to_cpu(lc->lcontext.LeaseState); | |
4057 | } | |
4058 | ||
f047390a | 4059 | static __u8 |
96164ab2 | 4060 | smb3_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key) |
f047390a PS |
4061 | { |
4062 | struct create_lease_v2 *lc = (struct create_lease_v2 *)buf; | |
4063 | ||
42873b0a | 4064 | *epoch = le16_to_cpu(lc->lcontext.Epoch); |
113be37d | 4065 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE) |
f047390a | 4066 | return SMB2_OPLOCK_LEVEL_NOCHANGE; |
96164ab2 | 4067 | if (lease_key) |
729c0c9d | 4068 | memcpy(lease_key, &lc->lcontext.LeaseKey, SMB2_LEASE_KEY_SIZE); |
f047390a PS |
4069 | return le32_to_cpu(lc->lcontext.LeaseState); |
4070 | } | |
4071 | ||
7f6c5008 PS |
4072 | static unsigned int |
4073 | smb2_wp_retry_size(struct inode *inode) | |
4074 | { | |
522aa3b5 | 4075 | return min_t(unsigned int, CIFS_SB(inode->i_sb)->ctx->wsize, |
7f6c5008 PS |
4076 | SMB2_MAX_BUFFER_SIZE); |
4077 | } | |
4078 | ||
52755808 PS |
4079 | static bool |
4080 | smb2_dir_needs_close(struct cifsFileInfo *cfile) | |
4081 | { | |
4082 | return !cfile->invalidHandle; | |
4083 | } | |
4084 | ||
026e93dc | 4085 | static void |
977b6170 | 4086 | fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, unsigned int orig_len, |
2b2f7548 | 4087 | struct smb_rqst *old_rq, __le16 cipher_type) |
026e93dc | 4088 | { |
0d35e382 RS |
4089 | struct smb2_hdr *shdr = |
4090 | (struct smb2_hdr *)old_rq->rq_iov[0].iov_base; | |
026e93dc PS |
4091 | |
4092 | memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr)); | |
4093 | tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; | |
4094 | tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); | |
4095 | tr_hdr->Flags = cpu_to_le16(0x01); | |
63ca5656 SF |
4096 | if ((cipher_type == SMB2_ENCRYPTION_AES128_GCM) || |
4097 | (cipher_type == SMB2_ENCRYPTION_AES256_GCM)) | |
fd08f2db | 4098 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES_GCM_NONCE); |
2b2f7548 | 4099 | else |
fd08f2db | 4100 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES_CCM_NONCE); |
026e93dc | 4101 | memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8); |
026e93dc PS |
4102 | } |
4103 | ||
f7f291e1 PA |
4104 | static void *smb2_aead_req_alloc(struct crypto_aead *tfm, const struct smb_rqst *rqst, |
4105 | int num_rqst, const u8 *sig, u8 **iv, | |
d08089f6 DH |
4106 | struct aead_request **req, struct sg_table *sgt, |
4107 | unsigned int *num_sgs, size_t *sensitive_size) | |
262916bc | 4108 | { |
f7f291e1 PA |
4109 | unsigned int req_size = sizeof(**req) + crypto_aead_reqsize(tfm); |
4110 | unsigned int iv_size = crypto_aead_ivsize(tfm); | |
4111 | unsigned int len; | |
4112 | u8 *p; | |
4113 | ||
4114 | *num_sgs = cifs_get_num_sgs(rqst, num_rqst, sig); | |
d08089f6 DH |
4115 | if (IS_ERR_VALUE((long)(int)*num_sgs)) |
4116 | return ERR_PTR(*num_sgs); | |
f7f291e1 PA |
4117 | |
4118 | len = iv_size; | |
4119 | len += crypto_aead_alignmask(tfm) & ~(crypto_tfm_ctx_alignment() - 1); | |
4120 | len = ALIGN(len, crypto_tfm_ctx_alignment()); | |
4121 | len += req_size; | |
4122 | len = ALIGN(len, __alignof__(struct scatterlist)); | |
d08089f6 DH |
4123 | len += array_size(*num_sgs, sizeof(struct scatterlist)); |
4124 | *sensitive_size = len; | |
f7f291e1 | 4125 | |
d08089f6 | 4126 | p = kvzalloc(len, GFP_NOFS); |
f7f291e1 | 4127 | if (!p) |
d08089f6 | 4128 | return ERR_PTR(-ENOMEM); |
f7f291e1 PA |
4129 | |
4130 | *iv = (u8 *)PTR_ALIGN(p, crypto_aead_alignmask(tfm) + 1); | |
4131 | *req = (struct aead_request *)PTR_ALIGN(*iv + iv_size, | |
4132 | crypto_tfm_ctx_alignment()); | |
d08089f6 DH |
4133 | sgt->sgl = (struct scatterlist *)PTR_ALIGN((u8 *)*req + req_size, |
4134 | __alignof__(struct scatterlist)); | |
f7f291e1 | 4135 | return p; |
262916bc RS |
4136 | } |
4137 | ||
d08089f6 | 4138 | static void *smb2_get_aead_req(struct crypto_aead *tfm, struct smb_rqst *rqst, |
f7f291e1 | 4139 | int num_rqst, const u8 *sig, u8 **iv, |
d08089f6 DH |
4140 | struct aead_request **req, struct scatterlist **sgl, |
4141 | size_t *sensitive_size) | |
026e93dc | 4142 | { |
d08089f6 DH |
4143 | struct sg_table sgtable = {}; |
4144 | unsigned int skip, num_sgs, i, j; | |
4145 | ssize_t rc; | |
f7f291e1 | 4146 | void *p; |
026e93dc | 4147 | |
d08089f6 DH |
4148 | p = smb2_aead_req_alloc(tfm, rqst, num_rqst, sig, iv, req, &sgtable, |
4149 | &num_sgs, sensitive_size); | |
4150 | if (IS_ERR(p)) | |
4151 | return ERR_CAST(p); | |
026e93dc | 4152 | |
d08089f6 | 4153 | sg_init_marker(sgtable.sgl, num_sgs); |
f7f291e1 | 4154 | |
d4fba63f AS |
4155 | /* |
4156 | * The first rqst has a transform header where the | |
4157 | * first 20 bytes are not part of the encrypted blob. | |
4158 | */ | |
4159 | skip = 20; | |
4160 | ||
b2c96de7 | 4161 | for (i = 0; i < num_rqst; i++) { |
d08089f6 DH |
4162 | struct iov_iter *iter = &rqst[i].rq_iter; |
4163 | size_t count = iov_iter_count(iter); | |
b2c96de7 | 4164 | |
d08089f6 DH |
4165 | for (j = 0; j < rqst[i].rq_nvec; j++) { |
4166 | cifs_sg_set_buf(&sgtable, | |
4167 | rqst[i].rq_iov[j].iov_base + skip, | |
4168 | rqst[i].rq_iov[j].iov_len - skip); | |
d4fba63f AS |
4169 | |
4170 | /* See the above comment on the 'skip' assignment */ | |
4171 | skip = 0; | |
f7f291e1 | 4172 | } |
d08089f6 DH |
4173 | sgtable.orig_nents = sgtable.nents; |
4174 | ||
0d7aeb68 DH |
4175 | rc = extract_iter_to_sg(iter, count, &sgtable, |
4176 | num_sgs - sgtable.nents, 0); | |
d08089f6 DH |
4177 | iov_iter_revert(iter, rc); |
4178 | sgtable.orig_nents = sgtable.nents; | |
026e93dc | 4179 | } |
f7f291e1 | 4180 | |
d08089f6 DH |
4181 | cifs_sg_set_buf(&sgtable, sig, SMB2_SIGNATURE_SIZE); |
4182 | sg_mark_end(&sgtable.sgl[sgtable.nents - 1]); | |
4183 | *sgl = sgtable.sgl; | |
f7f291e1 | 4184 | return p; |
026e93dc PS |
4185 | } |
4186 | ||
61cfac6f PS |
4187 | static int |
4188 | smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) | |
4189 | { | |
23d9b9b7 | 4190 | struct TCP_Server_Info *pserver; |
61cfac6f PS |
4191 | struct cifs_ses *ses; |
4192 | u8 *ses_enc_key; | |
4193 | ||
23d9b9b7 | 4194 | /* If server is a channel, select the primary channel */ |
b3773b19 | 4195 | pserver = SERVER_IS_CHAN(server) ? server->primary_server : server; |
23d9b9b7 | 4196 | |
61cfac6f | 4197 | spin_lock(&cifs_tcp_ses_lock); |
23d9b9b7 SP |
4198 | list_for_each_entry(ses, &pserver->smb_ses_list, smb_ses_list) { |
4199 | if (ses->Suid == ses_id) { | |
4200 | spin_lock(&ses->ses_lock); | |
4201 | ses_enc_key = enc ? ses->smb3encryptionkey : | |
4202 | ses->smb3decryptionkey; | |
4203 | memcpy(key, ses_enc_key, SMB3_ENC_DEC_KEY_SIZE); | |
4204 | spin_unlock(&ses->ses_lock); | |
4205 | spin_unlock(&cifs_tcp_ses_lock); | |
4206 | return 0; | |
d70e9fa5 | 4207 | } |
61cfac6f PS |
4208 | } |
4209 | spin_unlock(&cifs_tcp_ses_lock); | |
4210 | ||
61986a58 SP |
4211 | trace_smb3_ses_not_found(ses_id); |
4212 | ||
83728cbf | 4213 | return -EAGAIN; |
61cfac6f | 4214 | } |
026e93dc | 4215 | /* |
c713c877 RS |
4216 | * Encrypt or decrypt @rqst message. @rqst[0] has the following format: |
4217 | * iov[0] - transform header (associate data), | |
4218 | * iov[1-N] - SMB2 header and pages - data to encrypt. | |
4219 | * On success return encrypted data in iov[1-N] and pages, leave iov[0] | |
026e93dc PS |
4220 | * untouched. |
4221 | */ | |
4222 | static int | |
b2c96de7 RS |
4223 | crypt_message(struct TCP_Server_Info *server, int num_rqst, |
4224 | struct smb_rqst *rqst, int enc) | |
026e93dc PS |
4225 | { |
4226 | struct smb2_transform_hdr *tr_hdr = | |
b2c96de7 | 4227 | (struct smb2_transform_hdr *)rqst[0].rq_iov[0].iov_base; |
1fc6ad2f | 4228 | unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 20; |
026e93dc PS |
4229 | int rc = 0; |
4230 | struct scatterlist *sg; | |
4231 | u8 sign[SMB2_SIGNATURE_SIZE] = {}; | |
45a4546c | 4232 | u8 key[SMB3_ENC_DEC_KEY_SIZE]; |
026e93dc | 4233 | struct aead_request *req; |
f7f291e1 | 4234 | u8 *iv; |
a5186b85 | 4235 | DECLARE_CRYPTO_WAIT(wait); |
026e93dc PS |
4236 | struct crypto_aead *tfm; |
4237 | unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
f7f291e1 | 4238 | void *creq; |
d08089f6 | 4239 | size_t sensitive_size; |
026e93dc | 4240 | |
0d35e382 | 4241 | rc = smb2_get_enc_key(server, le64_to_cpu(tr_hdr->SessionId), enc, key); |
61cfac6f | 4242 | if (rc) { |
ac615db0 SP |
4243 | cifs_server_dbg(FYI, "%s: Could not get %scryption key. sid: 0x%llx\n", __func__, |
4244 | enc ? "en" : "de", le64_to_cpu(tr_hdr->SessionId)); | |
0bd294b5 | 4245 | return rc; |
026e93dc PS |
4246 | } |
4247 | ||
4248 | rc = smb3_crypto_aead_allocate(server); | |
4249 | if (rc) { | |
3175eb9b | 4250 | cifs_server_dbg(VFS, "%s: crypto alloc failed\n", __func__); |
026e93dc PS |
4251 | return rc; |
4252 | } | |
4253 | ||
8698baa1 | 4254 | tfm = enc ? server->secmech.enc : server->secmech.dec; |
63ca5656 | 4255 | |
45a4546c SP |
4256 | if ((server->cipher_type == SMB2_ENCRYPTION_AES256_CCM) || |
4257 | (server->cipher_type == SMB2_ENCRYPTION_AES256_GCM)) | |
63ca5656 SF |
4258 | rc = crypto_aead_setkey(tfm, key, SMB3_GCM256_CRYPTKEY_SIZE); |
4259 | else | |
45a4546c | 4260 | rc = crypto_aead_setkey(tfm, key, SMB3_GCM128_CRYPTKEY_SIZE); |
63ca5656 | 4261 | |
026e93dc | 4262 | if (rc) { |
3175eb9b | 4263 | cifs_server_dbg(VFS, "%s: Failed to set aead key %d\n", __func__, rc); |
026e93dc PS |
4264 | return rc; |
4265 | } | |
4266 | ||
4267 | rc = crypto_aead_setauthsize(tfm, SMB2_SIGNATURE_SIZE); | |
4268 | if (rc) { | |
3175eb9b | 4269 | cifs_server_dbg(VFS, "%s: Failed to set authsize %d\n", __func__, rc); |
026e93dc PS |
4270 | return rc; |
4271 | } | |
4272 | ||
d08089f6 DH |
4273 | creq = smb2_get_aead_req(tfm, rqst, num_rqst, sign, &iv, &req, &sg, |
4274 | &sensitive_size); | |
4275 | if (IS_ERR(creq)) | |
4276 | return PTR_ERR(creq); | |
026e93dc PS |
4277 | |
4278 | if (!enc) { | |
4279 | memcpy(sign, &tr_hdr->Signature, SMB2_SIGNATURE_SIZE); | |
4280 | crypt_len += SMB2_SIGNATURE_SIZE; | |
4281 | } | |
4282 | ||
63ca5656 SF |
4283 | if ((server->cipher_type == SMB2_ENCRYPTION_AES128_GCM) || |
4284 | (server->cipher_type == SMB2_ENCRYPTION_AES256_GCM)) | |
fd08f2db | 4285 | memcpy(iv, (char *)tr_hdr->Nonce, SMB3_AES_GCM_NONCE); |
2b2f7548 SF |
4286 | else { |
4287 | iv[0] = 3; | |
fd08f2db | 4288 | memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES_CCM_NONCE); |
2b2f7548 | 4289 | } |
026e93dc | 4290 | |
f7f291e1 | 4291 | aead_request_set_tfm(req, tfm); |
026e93dc PS |
4292 | aead_request_set_crypt(req, sg, sg, crypt_len, iv); |
4293 | aead_request_set_ad(req, assoc_data_len); | |
4294 | ||
4295 | aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, | |
a5186b85 | 4296 | crypto_req_done, &wait); |
026e93dc | 4297 | |
a5186b85 GBY |
4298 | rc = crypto_wait_req(enc ? crypto_aead_encrypt(req) |
4299 | : crypto_aead_decrypt(req), &wait); | |
026e93dc PS |
4300 | |
4301 | if (!rc && enc) | |
4302 | memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE); | |
4303 | ||
d08089f6 | 4304 | kvfree_sensitive(creq, sensitive_size); |
026e93dc PS |
4305 | return rc; |
4306 | } | |
4307 | ||
d08089f6 DH |
4308 | /* |
4309 | * Clear a read buffer, discarding the folios which have XA_MARK_0 set. | |
4310 | */ | |
4311 | static void cifs_clear_xarray_buffer(struct xarray *buffer) | |
4312 | { | |
4313 | struct folio *folio; | |
4314 | ||
4315 | XA_STATE(xas, buffer, 0); | |
4316 | ||
4317 | rcu_read_lock(); | |
4318 | xas_for_each_marked(&xas, folio, ULONG_MAX, XA_MARK_0) { | |
4319 | folio_put(folio); | |
4320 | } | |
4321 | rcu_read_unlock(); | |
4322 | xa_destroy(buffer); | |
4323 | } | |
4324 | ||
b2c96de7 RS |
4325 | void |
4326 | smb3_free_compound_rqst(int num_rqst, struct smb_rqst *rqst) | |
4327 | { | |
d08089f6 | 4328 | int i; |
b2c96de7 | 4329 | |
d08089f6 DH |
4330 | for (i = 0; i < num_rqst; i++) |
4331 | if (!xa_empty(&rqst[i].rq_buffer)) | |
4332 | cifs_clear_xarray_buffer(&rqst[i].rq_buffer); | |
b2c96de7 RS |
4333 | } |
4334 | ||
4335 | /* | |
4336 | * This function will initialize new_rq and encrypt the content. | |
4337 | * The first entry, new_rq[0], only contains a single iov which contains | |
4338 | * a smb2_transform_hdr and is pre-allocated by the caller. | |
4339 | * This function then populates new_rq[1+] with the content from olq_rq[0+]. | |
4340 | * | |
4341 | * The end result is an array of smb_rqst structures where the first structure | |
4342 | * only contains a single iov for the transform header which we then can pass | |
4343 | * to crypt_message(). | |
4344 | * | |
4345 | * new_rq[0].rq_iov[0] : smb2_transform_hdr pre-allocated by the caller | |
4346 | * new_rq[1+].rq_iov[*] == old_rq[0+].rq_iov[*] : SMB2/3 requests | |
4347 | */ | |
026e93dc | 4348 | static int |
b2c96de7 RS |
4349 | smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst, |
4350 | struct smb_rqst *new_rq, struct smb_rqst *old_rq) | |
026e93dc | 4351 | { |
b2c96de7 | 4352 | struct smb2_transform_hdr *tr_hdr = new_rq[0].rq_iov[0].iov_base; |
d08089f6 | 4353 | struct page *page; |
b2c96de7 RS |
4354 | unsigned int orig_len = 0; |
4355 | int i, j; | |
026e93dc PS |
4356 | int rc = -ENOMEM; |
4357 | ||
b2c96de7 | 4358 | for (i = 1; i < num_rqst; i++) { |
d406d267 PA |
4359 | struct smb_rqst *old = &old_rq[i - 1]; |
4360 | struct smb_rqst *new = &new_rq[i]; | |
d08089f6 DH |
4361 | struct xarray *buffer = &new->rq_buffer; |
4362 | size_t size = iov_iter_count(&old->rq_iter), seg, copied = 0; | |
d406d267 PA |
4363 | |
4364 | orig_len += smb_rqst_len(server, old); | |
4365 | new->rq_iov = old->rq_iov; | |
4366 | new->rq_nvec = old->rq_nvec; | |
4367 | ||
d08089f6 | 4368 | xa_init(buffer); |
026e93dc | 4369 | |
d08089f6 DH |
4370 | if (size > 0) { |
4371 | unsigned int npages = DIV_ROUND_UP(size, PAGE_SIZE); | |
4372 | ||
4373 | for (j = 0; j < npages; j++) { | |
4374 | void *o; | |
4375 | ||
4376 | rc = -ENOMEM; | |
4377 | page = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
4378 | if (!page) | |
4379 | goto err_free; | |
4380 | page->index = j; | |
4381 | o = xa_store(buffer, j, page, GFP_KERNEL); | |
4382 | if (xa_is_err(o)) { | |
4383 | rc = xa_err(o); | |
4384 | put_page(page); | |
4385 | goto err_free; | |
4386 | } | |
977b6170 | 4387 | |
d08089f6 | 4388 | xa_set_mark(buffer, j, XA_MARK_0); |
026e93dc | 4389 | |
d08089f6 DH |
4390 | seg = min_t(size_t, size - copied, PAGE_SIZE); |
4391 | if (copy_page_from_iter(page, 0, seg, &old->rq_iter) != seg) { | |
4392 | rc = -EFAULT; | |
4393 | goto err_free; | |
4394 | } | |
4395 | copied += seg; | |
4396 | } | |
4397 | iov_iter_xarray(&new->rq_iter, ITER_SOURCE, | |
4398 | buffer, 0, size); | |
4399 | new->rq_iter_size = size; | |
b2c96de7 RS |
4400 | } |
4401 | } | |
35e2cc1b | 4402 | |
b2c96de7 | 4403 | /* fill the 1st iov with a transform header */ |
2b2f7548 | 4404 | fill_transform_hdr(tr_hdr, orig_len, old_rq, server->cipher_type); |
d5f07fb3 | 4405 | |
b2c96de7 | 4406 | rc = crypt_message(server, num_rqst, new_rq, 1); |
a205d500 | 4407 | cifs_dbg(FYI, "Encrypt message returned %d\n", rc); |
026e93dc | 4408 | if (rc) |
b2c96de7 | 4409 | goto err_free; |
026e93dc PS |
4410 | |
4411 | return rc; | |
4412 | ||
b2c96de7 RS |
4413 | err_free: |
4414 | smb3_free_compound_rqst(num_rqst - 1, &new_rq[1]); | |
026e93dc PS |
4415 | return rc; |
4416 | } | |
4417 | ||
4326ed2f PS |
4418 | static int |
4419 | smb3_is_transform_hdr(void *buf) | |
4420 | { | |
4421 | struct smb2_transform_hdr *trhdr = buf; | |
4422 | ||
4423 | return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM; | |
4424 | } | |
4425 | ||
4426 | static int | |
4427 | decrypt_raw_data(struct TCP_Server_Info *server, char *buf, | |
d08089f6 | 4428 | unsigned int buf_data_size, struct iov_iter *iter, |
62593011 | 4429 | bool is_offloaded) |
4326ed2f | 4430 | { |
c713c877 | 4431 | struct kvec iov[2]; |
4326ed2f | 4432 | struct smb_rqst rqst = {NULL}; |
d08089f6 | 4433 | size_t iter_size = 0; |
4326ed2f PS |
4434 | int rc; |
4435 | ||
c713c877 RS |
4436 | iov[0].iov_base = buf; |
4437 | iov[0].iov_len = sizeof(struct smb2_transform_hdr); | |
4438 | iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr); | |
4439 | iov[1].iov_len = buf_data_size; | |
4326ed2f PS |
4440 | |
4441 | rqst.rq_iov = iov; | |
c713c877 | 4442 | rqst.rq_nvec = 2; |
d08089f6 DH |
4443 | if (iter) { |
4444 | rqst.rq_iter = *iter; | |
4445 | rqst.rq_iter_size = iov_iter_count(iter); | |
4446 | iter_size = iov_iter_count(iter); | |
4447 | } | |
4326ed2f | 4448 | |
b2c96de7 | 4449 | rc = crypt_message(server, 1, &rqst, 0); |
a205d500 | 4450 | cifs_dbg(FYI, "Decrypt message returned %d\n", rc); |
4326ed2f PS |
4451 | |
4452 | if (rc) | |
4453 | return rc; | |
4454 | ||
c713c877 | 4455 | memmove(buf, iov[1].iov_base, buf_data_size); |
977b6170 | 4456 | |
62593011 | 4457 | if (!is_offloaded) |
d08089f6 | 4458 | server->total_read = buf_data_size + iter_size; |
4326ed2f PS |
4459 | |
4460 | return rc; | |
4461 | } | |
4462 | ||
c42a6abe | 4463 | static int |
d08089f6 DH |
4464 | cifs_copy_pages_to_iter(struct xarray *pages, unsigned int data_size, |
4465 | unsigned int skip, struct iov_iter *iter) | |
c42a6abe | 4466 | { |
d08089f6 DH |
4467 | struct page *page; |
4468 | unsigned long index; | |
c42a6abe | 4469 | |
d08089f6 DH |
4470 | xa_for_each(pages, index, page) { |
4471 | size_t n, len = min_t(unsigned int, PAGE_SIZE - skip, data_size); | |
c42a6abe | 4472 | |
d08089f6 DH |
4473 | n = copy_page_to_iter(page, skip, len, iter); |
4474 | if (n != len) { | |
4475 | cifs_dbg(VFS, "%s: something went wrong\n", __func__); | |
4476 | return -EIO; | |
c42a6abe | 4477 | } |
d08089f6 DH |
4478 | data_size -= n; |
4479 | skip = 0; | |
c42a6abe PS |
4480 | } |
4481 | ||
4482 | return 0; | |
4483 | } | |
4484 | ||
4326ed2f PS |
4485 | static int |
4486 | handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, | |
d08089f6 DH |
4487 | char *buf, unsigned int buf_len, struct xarray *pages, |
4488 | unsigned int pages_len, bool is_offloaded) | |
4326ed2f PS |
4489 | { |
4490 | unsigned int data_offset; | |
4491 | unsigned int data_len; | |
c42a6abe PS |
4492 | unsigned int cur_off; |
4493 | unsigned int cur_page_idx; | |
4494 | unsigned int pad_len; | |
753b67eb | 4495 | struct cifs_io_subrequest *rdata = mid->callback_data; |
0d35e382 | 4496 | struct smb2_hdr *shdr = (struct smb2_hdr *)buf; |
4326ed2f | 4497 | int length; |
74dcf418 | 4498 | bool use_rdma_mr = false; |
4326ed2f PS |
4499 | |
4500 | if (shdr->Command != SMB2_READ) { | |
3175eb9b | 4501 | cifs_server_dbg(VFS, "only big read responses are supported\n"); |
ebc3d4e4 | 4502 | return -EOPNOTSUPP; |
4326ed2f PS |
4503 | } |
4504 | ||
511c54a2 PS |
4505 | if (server->ops->is_session_expired && |
4506 | server->ops->is_session_expired(buf)) { | |
de9ac0a6 | 4507 | if (!is_offloaded) |
183eea2e | 4508 | cifs_reconnect(server, true); |
511c54a2 PS |
4509 | return -1; |
4510 | } | |
4511 | ||
4326ed2f | 4512 | if (server->ops->is_status_pending && |
66265f13 | 4513 | server->ops->is_status_pending(buf, server)) |
4326ed2f PS |
4514 | return -1; |
4515 | ||
ec678eae PS |
4516 | /* set up first two iov to get credits */ |
4517 | rdata->iov[0].iov_base = buf; | |
bb1bccb6 PS |
4518 | rdata->iov[0].iov_len = 0; |
4519 | rdata->iov[1].iov_base = buf; | |
ec678eae | 4520 | rdata->iov[1].iov_len = |
bb1bccb6 | 4521 | min_t(unsigned int, buf_len, server->vals->read_rsp_size); |
ec678eae PS |
4522 | cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", |
4523 | rdata->iov[0].iov_base, rdata->iov[0].iov_len); | |
4524 | cifs_dbg(FYI, "1: iov_base=%p iov_len=%zu\n", | |
4525 | rdata->iov[1].iov_base, rdata->iov[1].iov_len); | |
4526 | ||
4527 | rdata->result = server->ops->map_error(buf, true); | |
4326ed2f PS |
4528 | if (rdata->result != 0) { |
4529 | cifs_dbg(FYI, "%s: server returned error %d\n", | |
4530 | __func__, rdata->result); | |
ec678eae | 4531 | /* normal error on read response */ |
ac873aa3 RS |
4532 | if (is_offloaded) |
4533 | mid->mid_state = MID_RESPONSE_RECEIVED; | |
4534 | else | |
4535 | dequeue_mid(mid, false); | |
4326ed2f PS |
4536 | return 0; |
4537 | } | |
4538 | ||
1fc6ad2f | 4539 | data_offset = server->ops->read_data_offset(buf); |
74dcf418 LL |
4540 | #ifdef CONFIG_CIFS_SMB_DIRECT |
4541 | use_rdma_mr = rdata->mr; | |
4542 | #endif | |
4543 | data_len = server->ops->read_data_length(buf, use_rdma_mr); | |
4326ed2f PS |
4544 | |
4545 | if (data_offset < server->vals->read_rsp_size) { | |
4546 | /* | |
4547 | * win2k8 sometimes sends an offset of 0 when the read | |
4548 | * is beyond the EOF. Treat it as if the data starts just after | |
4549 | * the header. | |
4550 | */ | |
4551 | cifs_dbg(FYI, "%s: data offset (%u) inside read response header\n", | |
4552 | __func__, data_offset); | |
4553 | data_offset = server->vals->read_rsp_size; | |
4554 | } else if (data_offset > MAX_CIFS_SMALL_BUFFER_SIZE) { | |
4555 | /* data_offset is beyond the end of smallbuf */ | |
4556 | cifs_dbg(FYI, "%s: data offset (%u) beyond end of smallbuf\n", | |
4557 | __func__, data_offset); | |
4558 | rdata->result = -EIO; | |
ac873aa3 RS |
4559 | if (is_offloaded) |
4560 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4561 | else | |
4562 | dequeue_mid(mid, rdata->result); | |
4326ed2f PS |
4563 | return 0; |
4564 | } | |
4565 | ||
c42a6abe PS |
4566 | pad_len = data_offset - server->vals->read_rsp_size; |
4567 | ||
4326ed2f PS |
4568 | if (buf_len <= data_offset) { |
4569 | /* read response payload is in pages */ | |
c42a6abe PS |
4570 | cur_page_idx = pad_len / PAGE_SIZE; |
4571 | cur_off = pad_len % PAGE_SIZE; | |
4572 | ||
4573 | if (cur_page_idx != 0) { | |
4574 | /* data offset is beyond the 1st page of response */ | |
4575 | cifs_dbg(FYI, "%s: data offset (%u) beyond 1st page of response\n", | |
4576 | __func__, data_offset); | |
4577 | rdata->result = -EIO; | |
ac873aa3 RS |
4578 | if (is_offloaded) |
4579 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4580 | else | |
4581 | dequeue_mid(mid, rdata->result); | |
c42a6abe PS |
4582 | return 0; |
4583 | } | |
4584 | ||
d08089f6 | 4585 | if (data_len > pages_len - pad_len) { |
c42a6abe PS |
4586 | /* data_len is corrupt -- discard frame */ |
4587 | rdata->result = -EIO; | |
ac873aa3 RS |
4588 | if (is_offloaded) |
4589 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4590 | else | |
4591 | dequeue_mid(mid, rdata->result); | |
c42a6abe PS |
4592 | return 0; |
4593 | } | |
4594 | ||
d08089f6 DH |
4595 | /* Copy the data to the output I/O iterator. */ |
4596 | rdata->result = cifs_copy_pages_to_iter(pages, pages_len, | |
ab58fbde | 4597 | cur_off, &rdata->subreq.io_iter); |
c42a6abe | 4598 | if (rdata->result != 0) { |
ac873aa3 RS |
4599 | if (is_offloaded) |
4600 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4601 | else | |
4602 | dequeue_mid(mid, rdata->result); | |
c42a6abe PS |
4603 | return 0; |
4604 | } | |
d08089f6 | 4605 | rdata->got_bytes = pages_len; |
c42a6abe | 4606 | |
4326ed2f PS |
4607 | } else if (buf_len >= data_offset + data_len) { |
4608 | /* read response payload is in buf */ | |
d08089f6 DH |
4609 | WARN_ONCE(pages && !xa_empty(pages), |
4610 | "read data can be either in buf or in pages"); | |
ab58fbde | 4611 | length = copy_to_iter(buf + data_offset, data_len, &rdata->subreq.io_iter); |
d08089f6 DH |
4612 | if (length < 0) |
4613 | return length; | |
4614 | rdata->got_bytes = data_len; | |
4326ed2f PS |
4615 | } else { |
4616 | /* read response payload cannot be in both buf and pages */ | |
4617 | WARN_ONCE(1, "buf can not contain only a part of read data"); | |
4618 | rdata->result = -EIO; | |
ac873aa3 RS |
4619 | if (is_offloaded) |
4620 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4621 | else | |
4622 | dequeue_mid(mid, rdata->result); | |
4326ed2f PS |
4623 | return 0; |
4624 | } | |
4625 | ||
ac873aa3 RS |
4626 | if (is_offloaded) |
4627 | mid->mid_state = MID_RESPONSE_RECEIVED; | |
4628 | else | |
4629 | dequeue_mid(mid, false); | |
d08089f6 | 4630 | return 0; |
4326ed2f PS |
4631 | } |
4632 | ||
35cf94a3 SF |
4633 | struct smb2_decrypt_work { |
4634 | struct work_struct decrypt; | |
4635 | struct TCP_Server_Info *server; | |
d08089f6 | 4636 | struct xarray buffer; |
35cf94a3 | 4637 | char *buf; |
35cf94a3 SF |
4638 | unsigned int len; |
4639 | }; | |
4640 | ||
4641 | ||
4642 | static void smb2_decrypt_offload(struct work_struct *work) | |
4643 | { | |
4644 | struct smb2_decrypt_work *dw = container_of(work, | |
4645 | struct smb2_decrypt_work, decrypt); | |
d08089f6 | 4646 | int rc; |
35cf94a3 | 4647 | struct mid_q_entry *mid; |
d08089f6 | 4648 | struct iov_iter iter; |
35cf94a3 | 4649 | |
d08089f6 | 4650 | iov_iter_xarray(&iter, ITER_DEST, &dw->buffer, 0, dw->len); |
35cf94a3 | 4651 | rc = decrypt_raw_data(dw->server, dw->buf, dw->server->vals->read_rsp_size, |
d08089f6 | 4652 | &iter, true); |
35cf94a3 SF |
4653 | if (rc) { |
4654 | cifs_dbg(VFS, "error decrypting rc=%d\n", rc); | |
4655 | goto free_pages; | |
4656 | } | |
4657 | ||
2255397c | 4658 | dw->server->lstrp = jiffies; |
ac873aa3 | 4659 | mid = smb2_find_dequeue_mid(dw->server, dw->buf); |
35cf94a3 SF |
4660 | if (mid == NULL) |
4661 | cifs_dbg(FYI, "mid not found\n"); | |
4662 | else { | |
4663 | mid->decrypted = true; | |
4664 | rc = handle_read_data(dw->server, mid, dw->buf, | |
4665 | dw->server->vals->read_rsp_size, | |
d08089f6 | 4666 | &dw->buffer, dw->len, |
de9ac0a6 | 4667 | true); |
12541000 RS |
4668 | if (rc >= 0) { |
4669 | #ifdef CONFIG_CIFS_STATS2 | |
4670 | mid->when_received = jiffies; | |
4671 | #endif | |
9e550b08 RS |
4672 | if (dw->server->ops->is_network_name_deleted) |
4673 | dw->server->ops->is_network_name_deleted(dw->buf, | |
4674 | dw->server); | |
4675 | ||
12541000 RS |
4676 | mid->callback(mid); |
4677 | } else { | |
d7d7a66a | 4678 | spin_lock(&dw->server->srv_lock); |
12541000 | 4679 | if (dw->server->tcpStatus == CifsNeedReconnect) { |
d7d7a66a | 4680 | spin_lock(&dw->server->mid_lock); |
12541000 | 4681 | mid->mid_state = MID_RETRY_NEEDED; |
d7d7a66a SP |
4682 | spin_unlock(&dw->server->mid_lock); |
4683 | spin_unlock(&dw->server->srv_lock); | |
12541000 RS |
4684 | mid->callback(mid); |
4685 | } else { | |
d7d7a66a | 4686 | spin_lock(&dw->server->mid_lock); |
12541000 RS |
4687 | mid->mid_state = MID_REQUEST_SUBMITTED; |
4688 | mid->mid_flags &= ~(MID_DELETED); | |
4689 | list_add_tail(&mid->qhead, | |
4690 | &dw->server->pending_mid_q); | |
d7d7a66a SP |
4691 | spin_unlock(&dw->server->mid_lock); |
4692 | spin_unlock(&dw->server->srv_lock); | |
12541000 RS |
4693 | } |
4694 | } | |
70f08f91 | 4695 | release_mid(mid); |
35cf94a3 SF |
4696 | } |
4697 | ||
35cf94a3 | 4698 | free_pages: |
d08089f6 | 4699 | cifs_clear_xarray_buffer(&dw->buffer); |
35cf94a3 | 4700 | cifs_small_buf_release(dw->buf); |
a08d897b | 4701 | kfree(dw); |
35cf94a3 SF |
4702 | } |
4703 | ||
4704 | ||
c42a6abe | 4705 | static int |
35cf94a3 SF |
4706 | receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid, |
4707 | int *num_mids) | |
c42a6abe | 4708 | { |
d08089f6 | 4709 | struct page *page; |
c42a6abe PS |
4710 | char *buf = server->smallbuf; |
4711 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; | |
d08089f6 DH |
4712 | struct iov_iter iter; |
4713 | unsigned int len, npages; | |
1fc6ad2f | 4714 | unsigned int buflen = server->pdu_size; |
c42a6abe PS |
4715 | int rc; |
4716 | int i = 0; | |
35cf94a3 | 4717 | struct smb2_decrypt_work *dw; |
c42a6abe | 4718 | |
d08089f6 DH |
4719 | dw = kzalloc(sizeof(struct smb2_decrypt_work), GFP_KERNEL); |
4720 | if (!dw) | |
4721 | return -ENOMEM; | |
4722 | xa_init(&dw->buffer); | |
4723 | INIT_WORK(&dw->decrypt, smb2_decrypt_offload); | |
4724 | dw->server = server; | |
4725 | ||
35cf94a3 | 4726 | *num_mids = 1; |
1fc6ad2f | 4727 | len = min_t(unsigned int, buflen, server->vals->read_rsp_size + |
c42a6abe PS |
4728 | sizeof(struct smb2_transform_hdr)) - HEADER_SIZE(server) + 1; |
4729 | ||
4730 | rc = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, len); | |
4731 | if (rc < 0) | |
d08089f6 | 4732 | goto free_dw; |
c42a6abe PS |
4733 | server->total_read += rc; |
4734 | ||
1fc6ad2f | 4735 | len = le32_to_cpu(tr_hdr->OriginalMessageSize) - |
93012bf9 | 4736 | server->vals->read_rsp_size; |
d08089f6 | 4737 | dw->len = len; |
c42a6abe PS |
4738 | npages = DIV_ROUND_UP(len, PAGE_SIZE); |
4739 | ||
d08089f6 | 4740 | rc = -ENOMEM; |
c42a6abe | 4741 | for (; i < npages; i++) { |
d08089f6 DH |
4742 | void *old; |
4743 | ||
4744 | page = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
4745 | if (!page) | |
4746 | goto discard_data; | |
4747 | page->index = i; | |
4748 | old = xa_store(&dw->buffer, i, page, GFP_KERNEL); | |
4749 | if (xa_is_err(old)) { | |
4750 | rc = xa_err(old); | |
4751 | put_page(page); | |
c42a6abe PS |
4752 | goto discard_data; |
4753 | } | |
d08089f6 | 4754 | xa_set_mark(&dw->buffer, i, XA_MARK_0); |
c42a6abe PS |
4755 | } |
4756 | ||
d08089f6 DH |
4757 | iov_iter_xarray(&iter, ITER_DEST, &dw->buffer, 0, npages * PAGE_SIZE); |
4758 | ||
4759 | /* Read the data into the buffer and clear excess bufferage. */ | |
4760 | rc = cifs_read_iter_from_socket(server, &iter, dw->len); | |
4761 | if (rc < 0) | |
4762 | goto discard_data; | |
4763 | ||
4764 | server->total_read += rc; | |
4765 | if (rc < npages * PAGE_SIZE) | |
4766 | iov_iter_zero(npages * PAGE_SIZE - rc, &iter); | |
4767 | iov_iter_revert(&iter, npages * PAGE_SIZE); | |
4768 | iov_iter_truncate(&iter, dw->len); | |
c42a6abe | 4769 | |
350be257 | 4770 | rc = cifs_discard_remaining_data(server); |
c42a6abe PS |
4771 | if (rc) |
4772 | goto free_pages; | |
4773 | ||
35cf94a3 SF |
4774 | /* |
4775 | * For large reads, offload to different thread for better performance, | |
4776 | * use more cores decrypting which can be expensive | |
4777 | */ | |
4778 | ||
10328c44 | 4779 | if ((server->min_offload) && (server->in_flight > 1) && |
563317ec | 4780 | (server->pdu_size >= server->min_offload)) { |
35cf94a3 SF |
4781 | dw->buf = server->smallbuf; |
4782 | server->smallbuf = (char *)cifs_small_buf_get(); | |
4783 | ||
a08d897b | 4784 | queue_work(decrypt_wq, &dw->decrypt); |
35cf94a3 SF |
4785 | *num_mids = 0; /* worker thread takes care of finding mid */ |
4786 | return -1; | |
4787 | } | |
4788 | ||
1fc6ad2f | 4789 | rc = decrypt_raw_data(server, buf, server->vals->read_rsp_size, |
d08089f6 | 4790 | &iter, false); |
c42a6abe PS |
4791 | if (rc) |
4792 | goto free_pages; | |
4793 | ||
4794 | *mid = smb2_find_mid(server, buf); | |
d08089f6 | 4795 | if (*mid == NULL) { |
c42a6abe | 4796 | cifs_dbg(FYI, "mid not found\n"); |
d08089f6 | 4797 | } else { |
c42a6abe PS |
4798 | cifs_dbg(FYI, "mid found\n"); |
4799 | (*mid)->decrypted = true; | |
4800 | rc = handle_read_data(server, *mid, buf, | |
4801 | server->vals->read_rsp_size, | |
d08089f6 | 4802 | &dw->buffer, dw->len, false); |
9e550b08 RS |
4803 | if (rc >= 0) { |
4804 | if (server->ops->is_network_name_deleted) { | |
4805 | server->ops->is_network_name_deleted(buf, | |
4806 | server); | |
4807 | } | |
4808 | } | |
c42a6abe PS |
4809 | } |
4810 | ||
4811 | free_pages: | |
d08089f6 DH |
4812 | cifs_clear_xarray_buffer(&dw->buffer); |
4813 | free_dw: | |
4814 | kfree(dw); | |
c42a6abe PS |
4815 | return rc; |
4816 | discard_data: | |
350be257 | 4817 | cifs_discard_remaining_data(server); |
c42a6abe PS |
4818 | goto free_pages; |
4819 | } | |
4820 | ||
4326ed2f PS |
4821 | static int |
4822 | receive_encrypted_standard(struct TCP_Server_Info *server, | |
b24df3e3 RS |
4823 | struct mid_q_entry **mids, char **bufs, |
4824 | int *num_mids) | |
4326ed2f | 4825 | { |
b24df3e3 | 4826 | int ret, length; |
4326ed2f | 4827 | char *buf = server->smallbuf; |
0d35e382 | 4828 | struct smb2_hdr *shdr; |
2e96467d | 4829 | unsigned int pdu_length = server->pdu_size; |
4326ed2f | 4830 | unsigned int buf_size; |
eec04ea1 | 4831 | unsigned int next_cmd; |
4326ed2f | 4832 | struct mid_q_entry *mid_entry; |
b24df3e3 RS |
4833 | int next_is_large; |
4834 | char *next_buffer = NULL; | |
4835 | ||
4836 | *num_mids = 0; | |
4326ed2f PS |
4837 | |
4838 | /* switch to large buffer if too big for a small one */ | |
1fc6ad2f | 4839 | if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE) { |
4326ed2f PS |
4840 | server->large_buf = true; |
4841 | memcpy(server->bigbuf, buf, server->total_read); | |
4842 | buf = server->bigbuf; | |
4843 | } | |
4844 | ||
4845 | /* now read the rest */ | |
4846 | length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, | |
1fc6ad2f | 4847 | pdu_length - HEADER_SIZE(server) + 1); |
4326ed2f PS |
4848 | if (length < 0) |
4849 | return length; | |
4850 | server->total_read += length; | |
4851 | ||
1fc6ad2f | 4852 | buf_size = pdu_length - sizeof(struct smb2_transform_hdr); |
d08089f6 | 4853 | length = decrypt_raw_data(server, buf, buf_size, NULL, false); |
4326ed2f PS |
4854 | if (length) |
4855 | return length; | |
4856 | ||
b24df3e3 | 4857 | next_is_large = server->large_buf; |
3edeb4a4 | 4858 | one_more: |
0d35e382 | 4859 | shdr = (struct smb2_hdr *)buf; |
eec04ea1 PA |
4860 | next_cmd = le32_to_cpu(shdr->NextCommand); |
4861 | if (next_cmd) { | |
4862 | if (WARN_ON_ONCE(next_cmd > pdu_length)) | |
4863 | return -1; | |
3edeb4a4 | 4864 | if (next_is_large) |
b24df3e3 | 4865 | next_buffer = (char *)cifs_buf_get(); |
3edeb4a4 | 4866 | else |
b24df3e3 | 4867 | next_buffer = (char *)cifs_small_buf_get(); |
eec04ea1 | 4868 | memcpy(next_buffer, buf + next_cmd, pdu_length - next_cmd); |
b24df3e3 RS |
4869 | } |
4870 | ||
4326ed2f PS |
4871 | mid_entry = smb2_find_mid(server, buf); |
4872 | if (mid_entry == NULL) | |
4873 | cifs_dbg(FYI, "mid not found\n"); | |
4874 | else { | |
4875 | cifs_dbg(FYI, "mid found\n"); | |
4876 | mid_entry->decrypted = true; | |
b24df3e3 | 4877 | mid_entry->resp_buf_size = server->pdu_size; |
4326ed2f PS |
4878 | } |
4879 | ||
b24df3e3 | 4880 | if (*num_mids >= MAX_COMPOUND) { |
3175eb9b | 4881 | cifs_server_dbg(VFS, "too many PDUs in compound\n"); |
b24df3e3 RS |
4882 | return -1; |
4883 | } | |
4884 | bufs[*num_mids] = buf; | |
4885 | mids[(*num_mids)++] = mid_entry; | |
4326ed2f PS |
4886 | |
4887 | if (mid_entry && mid_entry->handle) | |
b24df3e3 RS |
4888 | ret = mid_entry->handle(server, mid_entry); |
4889 | else | |
4890 | ret = cifs_handle_standard(server, mid_entry); | |
4891 | ||
eec04ea1 PA |
4892 | if (ret == 0 && next_cmd) { |
4893 | pdu_length -= next_cmd; | |
b24df3e3 RS |
4894 | server->large_buf = next_is_large; |
4895 | if (next_is_large) | |
3edeb4a4 | 4896 | server->bigbuf = buf = next_buffer; |
b24df3e3 | 4897 | else |
3edeb4a4 | 4898 | server->smallbuf = buf = next_buffer; |
b24df3e3 | 4899 | goto one_more; |
3edeb4a4 PS |
4900 | } else if (ret != 0) { |
4901 | /* | |
4902 | * ret != 0 here means that we didn't get to handle_mid() thus | |
4903 | * server->smallbuf and server->bigbuf are still valid. We need | |
4904 | * to free next_buffer because it is not going to be used | |
4905 | * anywhere. | |
4906 | */ | |
4907 | if (next_is_large) | |
4908 | free_rsp_buf(CIFS_LARGE_BUFFER, next_buffer); | |
4909 | else | |
4910 | free_rsp_buf(CIFS_SMALL_BUFFER, next_buffer); | |
b24df3e3 | 4911 | } |
4326ed2f | 4912 | |
b24df3e3 | 4913 | return ret; |
4326ed2f PS |
4914 | } |
4915 | ||
4916 | static int | |
b24df3e3 RS |
4917 | smb3_receive_transform(struct TCP_Server_Info *server, |
4918 | struct mid_q_entry **mids, char **bufs, int *num_mids) | |
4326ed2f PS |
4919 | { |
4920 | char *buf = server->smallbuf; | |
2e96467d | 4921 | unsigned int pdu_length = server->pdu_size; |
4326ed2f PS |
4922 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; |
4923 | unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
4924 | ||
1fc6ad2f | 4925 | if (pdu_length < sizeof(struct smb2_transform_hdr) + |
0d35e382 | 4926 | sizeof(struct smb2_hdr)) { |
3175eb9b | 4927 | cifs_server_dbg(VFS, "Transform message is too small (%u)\n", |
4326ed2f | 4928 | pdu_length); |
183eea2e | 4929 | cifs_reconnect(server, true); |
4326ed2f PS |
4930 | return -ECONNABORTED; |
4931 | } | |
4932 | ||
1fc6ad2f | 4933 | if (pdu_length < orig_len + sizeof(struct smb2_transform_hdr)) { |
3175eb9b | 4934 | cifs_server_dbg(VFS, "Transform message is broken\n"); |
183eea2e | 4935 | cifs_reconnect(server, true); |
4326ed2f PS |
4936 | return -ECONNABORTED; |
4937 | } | |
4938 | ||
b24df3e3 | 4939 | /* TODO: add support for compounds containing READ. */ |
6d2f84ee | 4940 | if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server)) { |
35cf94a3 | 4941 | return receive_encrypted_read(server, &mids[0], num_mids); |
6d2f84ee | 4942 | } |
4326ed2f | 4943 | |
b24df3e3 | 4944 | return receive_encrypted_standard(server, mids, bufs, num_mids); |
4326ed2f PS |
4945 | } |
4946 | ||
4947 | int | |
4948 | smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid) | |
4949 | { | |
4950 | char *buf = server->large_buf ? server->bigbuf : server->smallbuf; | |
4951 | ||
1fc6ad2f | 4952 | return handle_read_data(server, mid, buf, server->pdu_size, |
d08089f6 | 4953 | NULL, 0, false); |
4326ed2f PS |
4954 | } |
4955 | ||
a8f68b11 PA |
4956 | static int smb2_next_header(struct TCP_Server_Info *server, char *buf, |
4957 | unsigned int *noff) | |
8ce79ec3 | 4958 | { |
0d35e382 | 4959 | struct smb2_hdr *hdr = (struct smb2_hdr *)buf; |
8ce79ec3 RS |
4960 | struct smb2_transform_hdr *t_hdr = (struct smb2_transform_hdr *)buf; |
4961 | ||
a8f68b11 PA |
4962 | if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) { |
4963 | *noff = le32_to_cpu(t_hdr->OriginalMessageSize); | |
4964 | if (unlikely(check_add_overflow(*noff, sizeof(*t_hdr), noff))) | |
4965 | return -EINVAL; | |
4966 | } else { | |
4967 | *noff = le32_to_cpu(hdr->NextCommand); | |
4968 | } | |
4969 | if (unlikely(*noff && *noff < MID_HEADER_SIZE(server))) | |
4970 | return -EINVAL; | |
4971 | return 0; | |
8ce79ec3 RS |
4972 | } |
4973 | ||
c6ff4590 PA |
4974 | static int __cifs_sfu_make_node(unsigned int xid, struct inode *inode, |
4975 | struct dentry *dentry, struct cifs_tcon *tcon, | |
4976 | const char *full_path, umode_t mode, dev_t dev) | |
c847dccf | 4977 | { |
b0348e45 | 4978 | struct TCP_Server_Info *server = tcon->ses->server; |
c847dccf | 4979 | struct cifs_open_parms oparms; |
b0348e45 PA |
4980 | struct cifs_io_parms io_parms = {}; |
4981 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
4982 | struct cifs_fid fid; | |
c847dccf | 4983 | unsigned int bytes_written; |
c6ff4590 | 4984 | struct win_dev pdev = {}; |
c847dccf | 4985 | struct kvec iov[2]; |
b0348e45 PA |
4986 | __u32 oplock = server->oplocks ? REQ_OPLOCK : 0; |
4987 | int rc; | |
c847dccf | 4988 | |
c6ff4590 PA |
4989 | switch (mode & S_IFMT) { |
4990 | case S_IFCHR: | |
4991 | strscpy(pdev.type, "IntxCHR"); | |
4992 | pdev.major = cpu_to_le64(MAJOR(dev)); | |
4993 | pdev.minor = cpu_to_le64(MINOR(dev)); | |
4994 | break; | |
4995 | case S_IFBLK: | |
4996 | strscpy(pdev.type, "IntxBLK"); | |
4997 | pdev.major = cpu_to_le64(MAJOR(dev)); | |
4998 | pdev.minor = cpu_to_le64(MINOR(dev)); | |
4999 | break; | |
5000 | case S_IFIFO: | |
5001 | strscpy(pdev.type, "LnxFIFO"); | |
5002 | break; | |
5003 | default: | |
b0348e45 | 5004 | return -EPERM; |
c6ff4590 | 5005 | } |
c847dccf | 5006 | |
c6ff4590 PA |
5007 | oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, GENERIC_WRITE, |
5008 | FILE_CREATE, CREATE_NOT_DIR | | |
5009 | CREATE_OPTION_SPECIAL, ACL_NO_MODE); | |
5010 | oparms.fid = &fid; | |
c847dccf | 5011 | |
c6ff4590 | 5012 | rc = server->ops->open(xid, &oparms, &oplock, NULL); |
c847dccf | 5013 | if (rc) |
76894f3e | 5014 | return rc; |
c847dccf | 5015 | |
c847dccf AA |
5016 | io_parms.pid = current->tgid; |
5017 | io_parms.tcon = tcon; | |
c6ff4590 PA |
5018 | io_parms.length = sizeof(pdev); |
5019 | iov[1].iov_base = &pdev; | |
5020 | iov[1].iov_len = sizeof(pdev); | |
c847dccf | 5021 | |
b0348e45 PA |
5022 | rc = server->ops->sync_write(xid, &fid, &io_parms, |
5023 | &bytes_written, iov, 1); | |
5024 | server->ops->close(xid, tcon, &fid); | |
c6ff4590 PA |
5025 | return rc; |
5026 | } | |
5027 | ||
5028 | int cifs_sfu_make_node(unsigned int xid, struct inode *inode, | |
5029 | struct dentry *dentry, struct cifs_tcon *tcon, | |
5030 | const char *full_path, umode_t mode, dev_t dev) | |
5031 | { | |
5032 | struct inode *new = NULL; | |
5033 | int rc; | |
5034 | ||
5035 | rc = __cifs_sfu_make_node(xid, inode, dentry, tcon, | |
5036 | full_path, mode, dev); | |
5037 | if (rc) | |
5038 | return rc; | |
5039 | ||
5040 | if (tcon->posix_extensions) { | |
5041 | rc = smb311_posix_get_inode_info(&new, full_path, NULL, | |
5042 | inode->i_sb, xid); | |
5043 | } else if (tcon->unix_ext) { | |
5044 | rc = cifs_get_inode_info_unix(&new, full_path, | |
5045 | inode->i_sb, xid); | |
5046 | } else { | |
5047 | rc = cifs_get_inode_info(&new, full_path, NULL, | |
5048 | inode->i_sb, xid, NULL); | |
5049 | } | |
5050 | if (!rc) | |
5051 | d_instantiate(dentry, new); | |
c847dccf AA |
5052 | return rc; |
5053 | } | |
5054 | ||
b0348e45 PA |
5055 | static int smb2_make_node(unsigned int xid, struct inode *inode, |
5056 | struct dentry *dentry, struct cifs_tcon *tcon, | |
5057 | const char *full_path, umode_t mode, dev_t dev) | |
5058 | { | |
5059 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
102466f3 | 5060 | int rc; |
b0348e45 PA |
5061 | |
5062 | /* | |
5063 | * Check if mounted with mount parm 'sfu' mount parm. | |
5064 | * SFU emulation should work with all servers, but only | |
5065 | * supports block and char device (no socket & fifo), | |
5066 | * and was used by default in earlier versions of Windows | |
5067 | */ | |
102466f3 PA |
5068 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { |
5069 | rc = cifs_sfu_make_node(xid, inode, dentry, tcon, | |
5070 | full_path, mode, dev); | |
5071 | } else { | |
5a4b09ec | 5072 | rc = smb2_mknod_reparse(xid, inode, dentry, tcon, |
c520ba75 | 5073 | full_path, mode, dev); |
102466f3 PA |
5074 | } |
5075 | return rc; | |
b0348e45 PA |
5076 | } |
5077 | ||
7ef93ffc | 5078 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY |
53ef1016 | 5079 | struct smb_version_operations smb20_operations = { |
027e8eec | 5080 | .compare_fids = smb2_compare_fids, |
2dc7e1c0 | 5081 | .setup_request = smb2_setup_request, |
c95b8eed | 5082 | .setup_async_request = smb2_setup_async_request, |
2dc7e1c0 | 5083 | .check_receive = smb2_check_receive, |
28ea5290 PS |
5084 | .add_credits = smb2_add_credits, |
5085 | .set_credits = smb2_set_credits, | |
5086 | .get_credits_field = smb2_get_credits_field, | |
5087 | .get_credits = smb2_get_credits, | |
cb7e9eab | 5088 | .wait_mtu_credits = cifs_wait_mtu_credits, |
2dc7e1c0 | 5089 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 5090 | .revert_current_mid = smb2_revert_current_mid, |
09a4707e PS |
5091 | .read_data_offset = smb2_read_data_offset, |
5092 | .read_data_length = smb2_read_data_length, | |
5093 | .map_error = map_smb2_to_linux_error, | |
093b2bda PS |
5094 | .find_mid = smb2_find_mid, |
5095 | .check_message = smb2_check_message, | |
5096 | .dump_detail = smb2_dump_detail, | |
d60622eb PS |
5097 | .clear_stats = smb2_clear_stats, |
5098 | .print_stats = smb2_print_stats, | |
983c88a4 | 5099 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 5100 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 5101 | .downgrade_oplock = smb2_downgrade_oplock, |
ec2e4523 PS |
5102 | .need_neg = smb2_need_neg, |
5103 | .negotiate = smb2_negotiate, | |
3a3bab50 PS |
5104 | .negotiate_wsize = smb2_negotiate_wsize, |
5105 | .negotiate_rsize = smb2_negotiate_rsize, | |
5478f9ba PS |
5106 | .sess_setup = SMB2_sess_setup, |
5107 | .logoff = SMB2_logoff, | |
faaf946a PS |
5108 | .tree_connect = SMB2_tcon, |
5109 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 5110 | .qfs_tcon = smb2_qfs_tcon, |
2503a0db | 5111 | .is_path_accessible = smb2_is_path_accessible, |
9094fad1 PS |
5112 | .can_echo = smb2_can_echo, |
5113 | .echo = SMB2_echo, | |
be4cb9e3 | 5114 | .query_path_info = smb2_query_path_info, |
f2762ae4 | 5115 | .query_reparse_point = smb2_query_reparse_point, |
be4cb9e3 | 5116 | .get_srv_inum = smb2_get_srv_inum, |
b7546bc5 | 5117 | .query_file_info = smb2_query_file_info, |
c839ff24 PS |
5118 | .set_path_size = smb2_set_path_size, |
5119 | .set_file_size = smb2_set_file_size, | |
1feeaac7 | 5120 | .set_file_info = smb2_set_file_info, |
64a5cfa6 | 5121 | .set_compression = smb2_set_compression, |
a0e73183 PS |
5122 | .mkdir = smb2_mkdir, |
5123 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1a500f01 | 5124 | .rmdir = smb2_rmdir, |
cbe6f439 | 5125 | .unlink = smb2_unlink, |
35143eb5 | 5126 | .rename = smb2_rename_path, |
568798cc | 5127 | .create_hardlink = smb2_create_hardlink, |
539aad7f | 5128 | .parse_reparse_point = smb2_parse_reparse_point, |
5b23c97d SP |
5129 | .query_mf_symlink = smb3_query_mf_symlink, |
5130 | .create_mf_symlink = smb3_create_mf_symlink, | |
514d793e | 5131 | .create_reparse_symlink = smb2_create_reparse_symlink, |
f0df737e PS |
5132 | .open = smb2_open_file, |
5133 | .set_fid = smb2_set_fid, | |
5134 | .close = smb2_close_file, | |
7a5cfb19 | 5135 | .flush = smb2_flush_file, |
09a4707e | 5136 | .async_readv = smb2_async_readv, |
33319141 | 5137 | .async_writev = smb2_async_writev, |
d8e05039 | 5138 | .sync_read = smb2_sync_read, |
009d3443 | 5139 | .sync_write = smb2_sync_write, |
d324f08d PS |
5140 | .query_dir_first = smb2_query_dir_first, |
5141 | .query_dir_next = smb2_query_dir_next, | |
5142 | .close_dir = smb2_close_dir, | |
5143 | .calc_smb_size = smb2_calc_size, | |
2e44b288 | 5144 | .is_status_pending = smb2_is_status_pending, |
511c54a2 | 5145 | .is_session_expired = smb2_is_session_expired, |
983c88a4 | 5146 | .oplock_response = smb2_oplock_response, |
6fc05c25 | 5147 | .queryfs = smb2_queryfs, |
f7ba7fe6 PS |
5148 | .mand_lock = smb2_mand_lock, |
5149 | .mand_unlock_range = smb2_unlock_range, | |
b140799a | 5150 | .push_mand_locks = smb2_push_mandatory_locks, |
b8c32dbb PS |
5151 | .get_lease_key = smb2_get_lease_key, |
5152 | .set_lease_key = smb2_set_lease_key, | |
5153 | .new_lease_key = smb2_new_lease_key, | |
38107d45 | 5154 | .calc_signature = smb2_calc_signature, |
53ef1016 PS |
5155 | .is_read_op = smb2_is_read_op, |
5156 | .set_oplock_level = smb2_set_oplock_level, | |
a41a28bd | 5157 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 5158 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 5159 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 5160 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 5161 | .dir_needs_close = smb2_dir_needs_close, |
9d49640a | 5162 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5163 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5164 | #ifdef CONFIG_CIFS_XATTR |
5165 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5166 | .set_EA = smb2_set_ea, |
95907fea | 5167 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
5168 | .get_acl = get_smb2_acl, |
5169 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 5170 | .set_acl = set_smb2_acl, |
8ce79ec3 | 5171 | .next_header = smb2_next_header, |
f5b05d62 | 5172 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5173 | .make_node = smb2_make_node, |
2f3ebaba | 5174 | .fiemap = smb3_fiemap, |
dece44e3 | 5175 | .llseek = smb3_llseek, |
8e670f77 | 5176 | .is_status_io_timeout = smb2_is_status_io_timeout, |
9e550b08 | 5177 | .is_network_name_deleted = smb2_is_network_name_deleted, |
38107d45 | 5178 | }; |
7ef93ffc | 5179 | #endif /* CIFS_ALLOW_INSECURE_LEGACY */ |
38107d45 | 5180 | |
53ef1016 PS |
5181 | struct smb_version_operations smb21_operations = { |
5182 | .compare_fids = smb2_compare_fids, | |
5183 | .setup_request = smb2_setup_request, | |
5184 | .setup_async_request = smb2_setup_async_request, | |
5185 | .check_receive = smb2_check_receive, | |
5186 | .add_credits = smb2_add_credits, | |
5187 | .set_credits = smb2_set_credits, | |
5188 | .get_credits_field = smb2_get_credits_field, | |
5189 | .get_credits = smb2_get_credits, | |
cb7e9eab | 5190 | .wait_mtu_credits = smb2_wait_mtu_credits, |
9a1c67e8 | 5191 | .adjust_credits = smb2_adjust_credits, |
53ef1016 | 5192 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 5193 | .revert_current_mid = smb2_revert_current_mid, |
53ef1016 PS |
5194 | .read_data_offset = smb2_read_data_offset, |
5195 | .read_data_length = smb2_read_data_length, | |
5196 | .map_error = map_smb2_to_linux_error, | |
5197 | .find_mid = smb2_find_mid, | |
5198 | .check_message = smb2_check_message, | |
5199 | .dump_detail = smb2_dump_detail, | |
5200 | .clear_stats = smb2_clear_stats, | |
5201 | .print_stats = smb2_print_stats, | |
5202 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 5203 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
9bd45408 | 5204 | .downgrade_oplock = smb2_downgrade_oplock, |
53ef1016 PS |
5205 | .need_neg = smb2_need_neg, |
5206 | .negotiate = smb2_negotiate, | |
5207 | .negotiate_wsize = smb2_negotiate_wsize, | |
5208 | .negotiate_rsize = smb2_negotiate_rsize, | |
5209 | .sess_setup = SMB2_sess_setup, | |
5210 | .logoff = SMB2_logoff, | |
5211 | .tree_connect = SMB2_tcon, | |
5212 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 5213 | .qfs_tcon = smb2_qfs_tcon, |
53ef1016 PS |
5214 | .is_path_accessible = smb2_is_path_accessible, |
5215 | .can_echo = smb2_can_echo, | |
5216 | .echo = SMB2_echo, | |
5217 | .query_path_info = smb2_query_path_info, | |
f2762ae4 | 5218 | .query_reparse_point = smb2_query_reparse_point, |
53ef1016 PS |
5219 | .get_srv_inum = smb2_get_srv_inum, |
5220 | .query_file_info = smb2_query_file_info, | |
5221 | .set_path_size = smb2_set_path_size, | |
5222 | .set_file_size = smb2_set_file_size, | |
5223 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 5224 | .set_compression = smb2_set_compression, |
53ef1016 PS |
5225 | .mkdir = smb2_mkdir, |
5226 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
5227 | .rmdir = smb2_rmdir, | |
5228 | .unlink = smb2_unlink, | |
5229 | .rename = smb2_rename_path, | |
5230 | .create_hardlink = smb2_create_hardlink, | |
539aad7f | 5231 | .parse_reparse_point = smb2_parse_reparse_point, |
c22870ea | 5232 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 5233 | .create_mf_symlink = smb3_create_mf_symlink, |
514d793e | 5234 | .create_reparse_symlink = smb2_create_reparse_symlink, |
53ef1016 PS |
5235 | .open = smb2_open_file, |
5236 | .set_fid = smb2_set_fid, | |
5237 | .close = smb2_close_file, | |
5238 | .flush = smb2_flush_file, | |
5239 | .async_readv = smb2_async_readv, | |
5240 | .async_writev = smb2_async_writev, | |
5241 | .sync_read = smb2_sync_read, | |
5242 | .sync_write = smb2_sync_write, | |
5243 | .query_dir_first = smb2_query_dir_first, | |
5244 | .query_dir_next = smb2_query_dir_next, | |
5245 | .close_dir = smb2_close_dir, | |
5246 | .calc_smb_size = smb2_calc_size, | |
5247 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 5248 | .is_session_expired = smb2_is_session_expired, |
53ef1016 PS |
5249 | .oplock_response = smb2_oplock_response, |
5250 | .queryfs = smb2_queryfs, | |
5251 | .mand_lock = smb2_mand_lock, | |
5252 | .mand_unlock_range = smb2_unlock_range, | |
5253 | .push_mand_locks = smb2_push_mandatory_locks, | |
5254 | .get_lease_key = smb2_get_lease_key, | |
5255 | .set_lease_key = smb2_set_lease_key, | |
5256 | .new_lease_key = smb2_new_lease_key, | |
5257 | .calc_signature = smb2_calc_signature, | |
5258 | .is_read_op = smb21_is_read_op, | |
5259 | .set_oplock_level = smb21_set_oplock_level, | |
a41a28bd | 5260 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 5261 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 5262 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 5263 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 5264 | .dir_needs_close = smb2_dir_needs_close, |
834170c8 | 5265 | .enum_snapshots = smb3_enum_snapshots, |
2c6251ad | 5266 | .notify = smb3_notify, |
9d49640a | 5267 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5268 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5269 | #ifdef CONFIG_CIFS_XATTR |
5270 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5271 | .set_EA = smb2_set_ea, |
95907fea | 5272 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
5273 | .get_acl = get_smb2_acl, |
5274 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 5275 | .set_acl = set_smb2_acl, |
8ce79ec3 | 5276 | .next_header = smb2_next_header, |
f5b05d62 | 5277 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5278 | .make_node = smb2_make_node, |
2f3ebaba | 5279 | .fiemap = smb3_fiemap, |
dece44e3 | 5280 | .llseek = smb3_llseek, |
8e670f77 | 5281 | .is_status_io_timeout = smb2_is_status_io_timeout, |
9e550b08 | 5282 | .is_network_name_deleted = smb2_is_network_name_deleted, |
53ef1016 | 5283 | }; |
38107d45 SF |
5284 | |
5285 | struct smb_version_operations smb30_operations = { | |
5286 | .compare_fids = smb2_compare_fids, | |
5287 | .setup_request = smb2_setup_request, | |
5288 | .setup_async_request = smb2_setup_async_request, | |
5289 | .check_receive = smb2_check_receive, | |
5290 | .add_credits = smb2_add_credits, | |
5291 | .set_credits = smb2_set_credits, | |
5292 | .get_credits_field = smb2_get_credits_field, | |
5293 | .get_credits = smb2_get_credits, | |
cb7e9eab | 5294 | .wait_mtu_credits = smb2_wait_mtu_credits, |
9a1c67e8 | 5295 | .adjust_credits = smb2_adjust_credits, |
38107d45 | 5296 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 5297 | .revert_current_mid = smb2_revert_current_mid, |
38107d45 SF |
5298 | .read_data_offset = smb2_read_data_offset, |
5299 | .read_data_length = smb2_read_data_length, | |
5300 | .map_error = map_smb2_to_linux_error, | |
5301 | .find_mid = smb2_find_mid, | |
5302 | .check_message = smb2_check_message, | |
5303 | .dump_detail = smb2_dump_detail, | |
5304 | .clear_stats = smb2_clear_stats, | |
5305 | .print_stats = smb2_print_stats, | |
769ee6a4 | 5306 | .dump_share_caps = smb2_dump_share_caps, |
38107d45 | 5307 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 5308 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
9bd45408 | 5309 | .downgrade_oplock = smb3_downgrade_oplock, |
38107d45 SF |
5310 | .need_neg = smb2_need_neg, |
5311 | .negotiate = smb2_negotiate, | |
3d621230 SF |
5312 | .negotiate_wsize = smb3_negotiate_wsize, |
5313 | .negotiate_rsize = smb3_negotiate_rsize, | |
38107d45 SF |
5314 | .sess_setup = SMB2_sess_setup, |
5315 | .logoff = SMB2_logoff, | |
5316 | .tree_connect = SMB2_tcon, | |
5317 | .tree_disconnect = SMB2_tdis, | |
af6a12ea | 5318 | .qfs_tcon = smb3_qfs_tcon, |
13c0a747 | 5319 | .query_server_interfaces = SMB3_request_interfaces, |
38107d45 SF |
5320 | .is_path_accessible = smb2_is_path_accessible, |
5321 | .can_echo = smb2_can_echo, | |
5322 | .echo = SMB2_echo, | |
5323 | .query_path_info = smb2_query_path_info, | |
2e4564b3 | 5324 | /* WSL tags introduced long after smb2.1, enable for SMB3, 3.11 only */ |
9a49e221 | 5325 | .query_reparse_point = smb2_query_reparse_point, |
38107d45 SF |
5326 | .get_srv_inum = smb2_get_srv_inum, |
5327 | .query_file_info = smb2_query_file_info, | |
5328 | .set_path_size = smb2_set_path_size, | |
5329 | .set_file_size = smb2_set_file_size, | |
5330 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 5331 | .set_compression = smb2_set_compression, |
38107d45 SF |
5332 | .mkdir = smb2_mkdir, |
5333 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
5334 | .rmdir = smb2_rmdir, | |
5335 | .unlink = smb2_unlink, | |
5336 | .rename = smb2_rename_path, | |
5337 | .create_hardlink = smb2_create_hardlink, | |
539aad7f | 5338 | .parse_reparse_point = smb2_parse_reparse_point, |
c22870ea | 5339 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 5340 | .create_mf_symlink = smb3_create_mf_symlink, |
514d793e | 5341 | .create_reparse_symlink = smb2_create_reparse_symlink, |
38107d45 SF |
5342 | .open = smb2_open_file, |
5343 | .set_fid = smb2_set_fid, | |
5344 | .close = smb2_close_file, | |
43f8a6a7 | 5345 | .close_getattr = smb2_close_getattr, |
38107d45 SF |
5346 | .flush = smb2_flush_file, |
5347 | .async_readv = smb2_async_readv, | |
5348 | .async_writev = smb2_async_writev, | |
5349 | .sync_read = smb2_sync_read, | |
5350 | .sync_write = smb2_sync_write, | |
5351 | .query_dir_first = smb2_query_dir_first, | |
5352 | .query_dir_next = smb2_query_dir_next, | |
5353 | .close_dir = smb2_close_dir, | |
5354 | .calc_smb_size = smb2_calc_size, | |
5355 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 5356 | .is_session_expired = smb2_is_session_expired, |
38107d45 SF |
5357 | .oplock_response = smb2_oplock_response, |
5358 | .queryfs = smb2_queryfs, | |
5359 | .mand_lock = smb2_mand_lock, | |
5360 | .mand_unlock_range = smb2_unlock_range, | |
5361 | .push_mand_locks = smb2_push_mandatory_locks, | |
5362 | .get_lease_key = smb2_get_lease_key, | |
5363 | .set_lease_key = smb2_set_lease_key, | |
5364 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 5365 | .generate_signingkey = generate_smb30signingkey, |
38107d45 | 5366 | .calc_signature = smb3_calc_signature, |
b3152e2c | 5367 | .set_integrity = smb3_set_integrity, |
53ef1016 | 5368 | .is_read_op = smb21_is_read_op, |
42873b0a | 5369 | .set_oplock_level = smb3_set_oplock_level, |
f047390a PS |
5370 | .create_lease_buf = smb3_create_lease_buf, |
5371 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 5372 | .copychunk_range = smb2_copychunk_range, |
ca9e7a1c | 5373 | .duplicate_extents = smb2_duplicate_extents, |
ff1c038a | 5374 | .validate_negotiate = smb3_validate_negotiate, |
7f6c5008 | 5375 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 5376 | .dir_needs_close = smb2_dir_needs_close, |
31742c5a | 5377 | .fallocate = smb3_fallocate, |
834170c8 | 5378 | .enum_snapshots = smb3_enum_snapshots, |
d26c2ddd | 5379 | .notify = smb3_notify, |
026e93dc | 5380 | .init_transform_rq = smb3_init_transform_rq, |
4326ed2f PS |
5381 | .is_transform_hdr = smb3_is_transform_hdr, |
5382 | .receive_transform = smb3_receive_transform, | |
9d49640a | 5383 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5384 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5385 | #ifdef CONFIG_CIFS_XATTR |
5386 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5387 | .set_EA = smb2_set_ea, |
95907fea | 5388 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
5389 | .get_acl = get_smb2_acl, |
5390 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 5391 | .set_acl = set_smb2_acl, |
8ce79ec3 | 5392 | .next_header = smb2_next_header, |
f5b05d62 | 5393 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5394 | .make_node = smb2_make_node, |
2f3ebaba | 5395 | .fiemap = smb3_fiemap, |
dece44e3 | 5396 | .llseek = smb3_llseek, |
8e670f77 | 5397 | .is_status_io_timeout = smb2_is_status_io_timeout, |
9e550b08 | 5398 | .is_network_name_deleted = smb2_is_network_name_deleted, |
1080ef75 SF |
5399 | }; |
5400 | ||
aab1893d SF |
5401 | struct smb_version_operations smb311_operations = { |
5402 | .compare_fids = smb2_compare_fids, | |
5403 | .setup_request = smb2_setup_request, | |
5404 | .setup_async_request = smb2_setup_async_request, | |
5405 | .check_receive = smb2_check_receive, | |
5406 | .add_credits = smb2_add_credits, | |
5407 | .set_credits = smb2_set_credits, | |
5408 | .get_credits_field = smb2_get_credits_field, | |
5409 | .get_credits = smb2_get_credits, | |
5410 | .wait_mtu_credits = smb2_wait_mtu_credits, | |
9a1c67e8 | 5411 | .adjust_credits = smb2_adjust_credits, |
aab1893d | 5412 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 5413 | .revert_current_mid = smb2_revert_current_mid, |
aab1893d SF |
5414 | .read_data_offset = smb2_read_data_offset, |
5415 | .read_data_length = smb2_read_data_length, | |
5416 | .map_error = map_smb2_to_linux_error, | |
5417 | .find_mid = smb2_find_mid, | |
5418 | .check_message = smb2_check_message, | |
5419 | .dump_detail = smb2_dump_detail, | |
5420 | .clear_stats = smb2_clear_stats, | |
5421 | .print_stats = smb2_print_stats, | |
5422 | .dump_share_caps = smb2_dump_share_caps, | |
5423 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 5424 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
9bd45408 | 5425 | .downgrade_oplock = smb3_downgrade_oplock, |
aab1893d SF |
5426 | .need_neg = smb2_need_neg, |
5427 | .negotiate = smb2_negotiate, | |
3d621230 SF |
5428 | .negotiate_wsize = smb3_negotiate_wsize, |
5429 | .negotiate_rsize = smb3_negotiate_rsize, | |
aab1893d SF |
5430 | .sess_setup = SMB2_sess_setup, |
5431 | .logoff = SMB2_logoff, | |
5432 | .tree_connect = SMB2_tcon, | |
5433 | .tree_disconnect = SMB2_tdis, | |
5434 | .qfs_tcon = smb3_qfs_tcon, | |
13c0a747 | 5435 | .query_server_interfaces = SMB3_request_interfaces, |
aab1893d SF |
5436 | .is_path_accessible = smb2_is_path_accessible, |
5437 | .can_echo = smb2_can_echo, | |
5438 | .echo = SMB2_echo, | |
5439 | .query_path_info = smb2_query_path_info, | |
9a49e221 | 5440 | .query_reparse_point = smb2_query_reparse_point, |
aab1893d SF |
5441 | .get_srv_inum = smb2_get_srv_inum, |
5442 | .query_file_info = smb2_query_file_info, | |
5443 | .set_path_size = smb2_set_path_size, | |
5444 | .set_file_size = smb2_set_file_size, | |
5445 | .set_file_info = smb2_set_file_info, | |
5446 | .set_compression = smb2_set_compression, | |
5447 | .mkdir = smb2_mkdir, | |
5448 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
bea851b8 | 5449 | .posix_mkdir = smb311_posix_mkdir, |
aab1893d SF |
5450 | .rmdir = smb2_rmdir, |
5451 | .unlink = smb2_unlink, | |
5452 | .rename = smb2_rename_path, | |
5453 | .create_hardlink = smb2_create_hardlink, | |
539aad7f | 5454 | .parse_reparse_point = smb2_parse_reparse_point, |
aab1893d SF |
5455 | .query_mf_symlink = smb3_query_mf_symlink, |
5456 | .create_mf_symlink = smb3_create_mf_symlink, | |
514d793e | 5457 | .create_reparse_symlink = smb2_create_reparse_symlink, |
aab1893d SF |
5458 | .open = smb2_open_file, |
5459 | .set_fid = smb2_set_fid, | |
5460 | .close = smb2_close_file, | |
43f8a6a7 | 5461 | .close_getattr = smb2_close_getattr, |
aab1893d SF |
5462 | .flush = smb2_flush_file, |
5463 | .async_readv = smb2_async_readv, | |
5464 | .async_writev = smb2_async_writev, | |
5465 | .sync_read = smb2_sync_read, | |
5466 | .sync_write = smb2_sync_write, | |
5467 | .query_dir_first = smb2_query_dir_first, | |
5468 | .query_dir_next = smb2_query_dir_next, | |
5469 | .close_dir = smb2_close_dir, | |
5470 | .calc_smb_size = smb2_calc_size, | |
5471 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 5472 | .is_session_expired = smb2_is_session_expired, |
aab1893d | 5473 | .oplock_response = smb2_oplock_response, |
2d304217 | 5474 | .queryfs = smb311_queryfs, |
aab1893d SF |
5475 | .mand_lock = smb2_mand_lock, |
5476 | .mand_unlock_range = smb2_unlock_range, | |
5477 | .push_mand_locks = smb2_push_mandatory_locks, | |
5478 | .get_lease_key = smb2_get_lease_key, | |
5479 | .set_lease_key = smb2_set_lease_key, | |
5480 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 5481 | .generate_signingkey = generate_smb311signingkey, |
aab1893d | 5482 | .calc_signature = smb3_calc_signature, |
b3152e2c | 5483 | .set_integrity = smb3_set_integrity, |
aab1893d SF |
5484 | .is_read_op = smb21_is_read_op, |
5485 | .set_oplock_level = smb3_set_oplock_level, | |
5486 | .create_lease_buf = smb3_create_lease_buf, | |
5487 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 5488 | .copychunk_range = smb2_copychunk_range, |
02b16665 | 5489 | .duplicate_extents = smb2_duplicate_extents, |
aab1893d SF |
5490 | /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */ |
5491 | .wp_retry_size = smb2_wp_retry_size, | |
5492 | .dir_needs_close = smb2_dir_needs_close, | |
5493 | .fallocate = smb3_fallocate, | |
834170c8 | 5494 | .enum_snapshots = smb3_enum_snapshots, |
d26c2ddd | 5495 | .notify = smb3_notify, |
026e93dc | 5496 | .init_transform_rq = smb3_init_transform_rq, |
4326ed2f PS |
5497 | .is_transform_hdr = smb3_is_transform_hdr, |
5498 | .receive_transform = smb3_receive_transform, | |
9d49640a | 5499 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5500 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5501 | #ifdef CONFIG_CIFS_XATTR |
5502 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5503 | .set_EA = smb2_set_ea, |
95907fea | 5504 | #endif /* CIFS_XATTR */ |
c1777df1 RS |
5505 | .get_acl = get_smb2_acl, |
5506 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
5507 | .set_acl = set_smb2_acl, | |
8ce79ec3 | 5508 | .next_header = smb2_next_header, |
f5b05d62 | 5509 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5510 | .make_node = smb2_make_node, |
2f3ebaba | 5511 | .fiemap = smb3_fiemap, |
dece44e3 | 5512 | .llseek = smb3_llseek, |
8e670f77 | 5513 | .is_status_io_timeout = smb2_is_status_io_timeout, |
9e550b08 | 5514 | .is_network_name_deleted = smb2_is_network_name_deleted, |
aab1893d | 5515 | }; |
aab1893d | 5516 | |
7ef93ffc | 5517 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY |
dd446b16 SF |
5518 | struct smb_version_values smb20_values = { |
5519 | .version_string = SMB20_VERSION_STRING, | |
5520 | .protocol_id = SMB20_PROT_ID, | |
5521 | .req_capabilities = 0, /* MBZ */ | |
5522 | .large_lock_type = 0, | |
be135000 SF |
5523 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE, |
5524 | .shared_lock_type = SMB2_LOCKFLAG_SHARED, | |
dd446b16 | 5525 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, |
0d35e382 | 5526 | .header_size = sizeof(struct smb2_hdr), |
977b6170 | 5527 | .header_preamble_size = 0, |
dd446b16 | 5528 | .max_header_size = MAX_SMB2_HDR_SIZE, |
eb3e28c1 | 5529 | .read_rsp_size = sizeof(struct smb2_read_rsp), |
dd446b16 SF |
5530 | .lock_cmd = SMB2_LOCK, |
5531 | .cap_unix = 0, | |
5532 | .cap_nt_find = SMB2_NT_FIND, | |
5533 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5534 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5535 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 5536 | .create_lease_size = sizeof(struct create_lease), |
dd446b16 | 5537 | }; |
7ef93ffc | 5538 | #endif /* ALLOW_INSECURE_LEGACY */ |
dd446b16 | 5539 | |
1080ef75 SF |
5540 | struct smb_version_values smb21_values = { |
5541 | .version_string = SMB21_VERSION_STRING, | |
e4aa25e7 SF |
5542 | .protocol_id = SMB21_PROT_ID, |
5543 | .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */ | |
5544 | .large_lock_type = 0, | |
be135000 SF |
5545 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE, |
5546 | .shared_lock_type = SMB2_LOCKFLAG_SHARED, | |
e4aa25e7 | 5547 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, |
0d35e382 | 5548 | .header_size = sizeof(struct smb2_hdr), |
977b6170 | 5549 | .header_preamble_size = 0, |
e4aa25e7 | 5550 | .max_header_size = MAX_SMB2_HDR_SIZE, |
eb3e28c1 | 5551 | .read_rsp_size = sizeof(struct smb2_read_rsp), |
e4aa25e7 SF |
5552 | .lock_cmd = SMB2_LOCK, |
5553 | .cap_unix = 0, | |
5554 | .cap_nt_find = SMB2_NT_FIND, | |
5555 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5556 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5557 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 5558 | .create_lease_size = sizeof(struct create_lease), |
e4aa25e7 SF |
5559 | }; |
5560 | ||
9764c02f SF |
5561 | struct smb_version_values smb3any_values = { |
5562 | .version_string = SMB3ANY_VERSION_STRING, | |
5563 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
f8015683 | 5564 | .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 | 5565 | .large_lock_type = 0, |
be135000 SF |
5566 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE, |
5567 | .shared_lock_type = SMB2_LOCKFLAG_SHARED, | |
9764c02f | 5568 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, |
0d35e382 | 5569 | .header_size = sizeof(struct smb2_hdr), |
977b6170 | 5570 | .header_preamble_size = 0, |
9764c02f | 5571 | .max_header_size = MAX_SMB2_HDR_SIZE, |
eb3e28c1 | 5572 | .read_rsp_size = sizeof(struct smb2_read_rsp), |
9764c02f SF |
5573 | .lock_cmd = SMB2_LOCK, |
5574 | .cap_unix = 0, | |
5575 | .cap_nt_find = SMB2_NT_FIND, | |
5576 | .cap_large_files = SMB2_LARGE_FILES, | |
5577 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5578 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5579 | .create_lease_size = sizeof(struct create_lease_v2), | |
5580 | }; | |
5581 | ||
5582 | struct smb_version_values smbdefault_values = { | |
5583 | .version_string = SMBDEFAULT_VERSION_STRING, | |
5584 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
f8015683 | 5585 | .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 | 5586 | .large_lock_type = 0, |
be135000 SF |
5587 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE, |
5588 | .shared_lock_type = SMB2_LOCKFLAG_SHARED, | |
9764c02f | 5589 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, |
0d35e382 | 5590 | .header_size = sizeof(struct smb2_hdr), |
977b6170 | 5591 | .header_preamble_size = 0, |
9764c02f | 5592 | .max_header_size = MAX_SMB2_HDR_SIZE, |
eb3e28c1 | 5593 | .read_rsp_size = sizeof(struct smb2_read_rsp), |
9764c02f SF |
5594 | .lock_cmd = SMB2_LOCK, |
5595 | .cap_unix = 0, | |
5596 | .cap_nt_find = SMB2_NT_FIND, | |
5597 | .cap_large_files = SMB2_LARGE_FILES, | |
5598 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5599 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5600 | .create_lease_size = sizeof(struct create_lease_v2), | |
5601 | }; | |
5602 | ||
e4aa25e7 SF |
5603 | struct smb_version_values smb30_values = { |
5604 | .version_string = SMB30_VERSION_STRING, | |
5605 | .protocol_id = SMB30_PROT_ID, | |
f8015683 | 5606 | .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 | 5607 | .large_lock_type = 0, |
be135000 SF |
5608 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE, |
5609 | .shared_lock_type = SMB2_LOCKFLAG_SHARED, | |
027e8eec | 5610 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, |
0d35e382 | 5611 | .header_size = sizeof(struct smb2_hdr), |
977b6170 | 5612 | .header_preamble_size = 0, |
093b2bda | 5613 | .max_header_size = MAX_SMB2_HDR_SIZE, |
eb3e28c1 | 5614 | .read_rsp_size = sizeof(struct smb2_read_rsp), |
2dc7e1c0 | 5615 | .lock_cmd = SMB2_LOCK, |
29e20f9c PS |
5616 | .cap_unix = 0, |
5617 | .cap_nt_find = SMB2_NT_FIND, | |
5618 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5619 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5620 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 5621 | .create_lease_size = sizeof(struct create_lease_v2), |
1080ef75 | 5622 | }; |
20b6d8b4 SF |
5623 | |
5624 | struct smb_version_values smb302_values = { | |
5625 | .version_string = SMB302_VERSION_STRING, | |
5626 | .protocol_id = SMB302_PROT_ID, | |
f8015683 | 5627 | .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 | 5628 | .large_lock_type = 0, |
be135000 SF |
5629 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE, |
5630 | .shared_lock_type = SMB2_LOCKFLAG_SHARED, | |
20b6d8b4 | 5631 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, |
0d35e382 | 5632 | .header_size = sizeof(struct smb2_hdr), |
977b6170 | 5633 | .header_preamble_size = 0, |
20b6d8b4 | 5634 | .max_header_size = MAX_SMB2_HDR_SIZE, |
eb3e28c1 | 5635 | .read_rsp_size = sizeof(struct smb2_read_rsp), |
20b6d8b4 SF |
5636 | .lock_cmd = SMB2_LOCK, |
5637 | .cap_unix = 0, | |
5638 | .cap_nt_find = SMB2_NT_FIND, | |
5639 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5640 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5641 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 5642 | .create_lease_size = sizeof(struct create_lease_v2), |
20b6d8b4 | 5643 | }; |
5f7fbf73 | 5644 | |
5f7fbf73 SF |
5645 | struct smb_version_values smb311_values = { |
5646 | .version_string = SMB311_VERSION_STRING, | |
5647 | .protocol_id = SMB311_PROT_ID, | |
f8015683 | 5648 | .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 | 5649 | .large_lock_type = 0, |
be135000 SF |
5650 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE, |
5651 | .shared_lock_type = SMB2_LOCKFLAG_SHARED, | |
5f7fbf73 | 5652 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, |
0d35e382 | 5653 | .header_size = sizeof(struct smb2_hdr), |
977b6170 | 5654 | .header_preamble_size = 0, |
5f7fbf73 | 5655 | .max_header_size = MAX_SMB2_HDR_SIZE, |
eb3e28c1 | 5656 | .read_rsp_size = sizeof(struct smb2_read_rsp), |
5f7fbf73 SF |
5657 | .lock_cmd = SMB2_LOCK, |
5658 | .cap_unix = 0, | |
5659 | .cap_nt_find = SMB2_NT_FIND, | |
5660 | .cap_large_files = SMB2_LARGE_FILES, | |
5661 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5662 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5663 | .create_lease_size = sizeof(struct create_lease_v2), | |
5664 | }; |