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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> |
8bd0d701 | 16 | #include "cifsfs.h" |
1080ef75 | 17 | #include "cifsglob.h" |
2dc7e1c0 PS |
18 | #include "smb2pdu.h" |
19 | #include "smb2proto.h" | |
28ea5290 PS |
20 | #include "cifsproto.h" |
21 | #include "cifs_debug.h" | |
b42bf888 | 22 | #include "cifs_unicode.h" |
2e44b288 | 23 | #include "smb2status.h" |
6fc05c25 | 24 | #include "smb2glob.h" |
834170c8 | 25 | #include "cifs_ioctl.h" |
09902f8d | 26 | #include "smbdirect.h" |
3fa1c6d1 | 27 | #include "fs_context.h" |
28ea5290 | 28 | |
ef68e831 | 29 | /* Change credits for different ops and return the total number of credits */ |
28ea5290 PS |
30 | static int |
31 | change_conf(struct TCP_Server_Info *server) | |
32 | { | |
33 | server->credits += server->echo_credits + server->oplock_credits; | |
34 | server->oplock_credits = server->echo_credits = 0; | |
35 | switch (server->credits) { | |
36 | case 0: | |
ef68e831 | 37 | return 0; |
28ea5290 PS |
38 | case 1: |
39 | server->echoes = false; | |
40 | server->oplocks = false; | |
28ea5290 PS |
41 | break; |
42 | case 2: | |
43 | server->echoes = true; | |
44 | server->oplocks = false; | |
45 | server->echo_credits = 1; | |
28ea5290 PS |
46 | break; |
47 | default: | |
48 | server->echoes = true; | |
e0ddde9d SF |
49 | if (enable_oplocks) { |
50 | server->oplocks = true; | |
51 | server->oplock_credits = 1; | |
52 | } else | |
53 | server->oplocks = false; | |
54 | ||
28ea5290 | 55 | server->echo_credits = 1; |
28ea5290 PS |
56 | } |
57 | server->credits -= server->echo_credits + server->oplock_credits; | |
ef68e831 | 58 | return server->credits + server->echo_credits + server->oplock_credits; |
28ea5290 PS |
59 | } |
60 | ||
61 | static void | |
335b7b62 PS |
62 | smb2_add_credits(struct TCP_Server_Info *server, |
63 | const struct cifs_credits *credits, const int optype) | |
28ea5290 | 64 | { |
ef68e831 | 65 | int *val, rc = -1; |
335b7b62 PS |
66 | unsigned int add = credits->value; |
67 | unsigned int instance = credits->instance; | |
68 | bool reconnect_detected = false; | |
ef68e831 | 69 | |
28ea5290 PS |
70 | spin_lock(&server->req_lock); |
71 | val = server->ops->get_credits_field(server, optype); | |
b340a4d4 SF |
72 | |
73 | /* eg found case where write overlapping reconnect messed up credits */ | |
74 | if (((optype & CIFS_OP_MASK) == CIFS_NEG_OP) && (*val != 0)) | |
75 | trace_smb3_reconnect_with_invalid_credits(server->CurrentMid, | |
9eec21bf | 76 | server->hostname, *val, add); |
335b7b62 PS |
77 | if ((instance == 0) || (instance == server->reconnect_instance)) |
78 | *val += add; | |
79 | else | |
80 | reconnect_detected = true; | |
b340a4d4 | 81 | |
141891f4 SF |
82 | if (*val > 65000) { |
83 | *val = 65000; /* Don't get near 64K credits, avoid srv bugs */ | |
a0a3036b | 84 | pr_warn_once("server overflowed SMB3 credits\n"); |
141891f4 | 85 | } |
28ea5290 | 86 | server->in_flight--; |
ec2e4523 | 87 | if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP) |
28ea5290 | 88 | rc = change_conf(server); |
983c88a4 PS |
89 | /* |
90 | * Sometimes server returns 0 credits on oplock break ack - we need to | |
91 | * rebalance credits in this case. | |
92 | */ | |
93 | else if (server->in_flight > 0 && server->oplock_credits == 0 && | |
94 | server->oplocks) { | |
95 | if (server->credits > 1) { | |
96 | server->credits--; | |
97 | server->oplock_credits++; | |
98 | } | |
99 | } | |
28ea5290 PS |
100 | spin_unlock(&server->req_lock); |
101 | wake_up(&server->request_q); | |
ef68e831 | 102 | |
335b7b62 PS |
103 | if (reconnect_detected) |
104 | cifs_dbg(FYI, "trying to put %d credits from the old server instance %d\n", | |
105 | add, instance); | |
106 | ||
82e0457a PS |
107 | if (server->tcpStatus == CifsNeedReconnect |
108 | || server->tcpStatus == CifsExiting) | |
ef68e831 PS |
109 | return; |
110 | ||
111 | switch (rc) { | |
112 | case -1: | |
113 | /* change_conf hasn't been executed */ | |
114 | break; | |
115 | case 0: | |
3175eb9b | 116 | cifs_server_dbg(VFS, "Possible client or server bug - zero credits\n"); |
ef68e831 PS |
117 | break; |
118 | case 1: | |
3175eb9b | 119 | cifs_server_dbg(VFS, "disabling echoes and oplocks\n"); |
ef68e831 PS |
120 | break; |
121 | case 2: | |
122 | cifs_dbg(FYI, "disabling oplocks\n"); | |
123 | break; | |
124 | default: | |
9eec21bf SF |
125 | trace_smb3_add_credits(server->CurrentMid, |
126 | server->hostname, rc, add); | |
ef68e831 PS |
127 | cifs_dbg(FYI, "add %u credits total=%d\n", add, rc); |
128 | } | |
28ea5290 PS |
129 | } |
130 | ||
131 | static void | |
132 | smb2_set_credits(struct TCP_Server_Info *server, const int val) | |
133 | { | |
134 | spin_lock(&server->req_lock); | |
135 | server->credits = val; | |
9e1a37da SF |
136 | if (val == 1) |
137 | server->reconnect_instance++; | |
28ea5290 | 138 | spin_unlock(&server->req_lock); |
6e4d3bbe SF |
139 | /* don't log while holding the lock */ |
140 | if (val == 1) | |
141 | cifs_dbg(FYI, "set credits to 1 due to smb2 reconnect\n"); | |
28ea5290 PS |
142 | } |
143 | ||
144 | static int * | |
145 | smb2_get_credits_field(struct TCP_Server_Info *server, const int optype) | |
146 | { | |
147 | switch (optype) { | |
148 | case CIFS_ECHO_OP: | |
149 | return &server->echo_credits; | |
150 | case CIFS_OBREAK_OP: | |
151 | return &server->oplock_credits; | |
152 | default: | |
153 | return &server->credits; | |
154 | } | |
155 | } | |
156 | ||
157 | static unsigned int | |
158 | smb2_get_credits(struct mid_q_entry *mid) | |
159 | { | |
86a7964b | 160 | return mid->credits_received; |
28ea5290 | 161 | } |
2dc7e1c0 | 162 | |
cb7e9eab PS |
163 | static int |
164 | smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size, | |
335b7b62 | 165 | unsigned int *num, struct cifs_credits *credits) |
cb7e9eab PS |
166 | { |
167 | int rc = 0; | |
168 | unsigned int scredits; | |
169 | ||
170 | spin_lock(&server->req_lock); | |
171 | while (1) { | |
172 | if (server->credits <= 0) { | |
173 | spin_unlock(&server->req_lock); | |
174 | cifs_num_waiters_inc(server); | |
175 | rc = wait_event_killable(server->request_q, | |
b227d215 | 176 | has_credits(server, &server->credits, 1)); |
cb7e9eab PS |
177 | cifs_num_waiters_dec(server); |
178 | if (rc) | |
179 | return rc; | |
180 | spin_lock(&server->req_lock); | |
181 | } else { | |
182 | if (server->tcpStatus == CifsExiting) { | |
183 | spin_unlock(&server->req_lock); | |
184 | return -ENOENT; | |
185 | } | |
186 | ||
187 | scredits = server->credits; | |
188 | /* can deadlock with reopen */ | |
acc58d0b | 189 | if (scredits <= 8) { |
cb7e9eab | 190 | *num = SMB2_MAX_BUFFER_SIZE; |
335b7b62 PS |
191 | credits->value = 0; |
192 | credits->instance = 0; | |
cb7e9eab PS |
193 | break; |
194 | } | |
195 | ||
acc58d0b PS |
196 | /* leave some credits for reopen and other ops */ |
197 | scredits -= 8; | |
cb7e9eab PS |
198 | *num = min_t(unsigned int, size, |
199 | scredits * SMB2_MAX_BUFFER_SIZE); | |
200 | ||
335b7b62 PS |
201 | credits->value = |
202 | DIV_ROUND_UP(*num, SMB2_MAX_BUFFER_SIZE); | |
203 | credits->instance = server->reconnect_instance; | |
204 | server->credits -= credits->value; | |
cb7e9eab | 205 | server->in_flight++; |
1b63f184 SF |
206 | if (server->in_flight > server->max_in_flight) |
207 | server->max_in_flight = server->in_flight; | |
cb7e9eab PS |
208 | break; |
209 | } | |
210 | } | |
211 | spin_unlock(&server->req_lock); | |
212 | return rc; | |
213 | } | |
214 | ||
9a1c67e8 PS |
215 | static int |
216 | smb2_adjust_credits(struct TCP_Server_Info *server, | |
217 | struct cifs_credits *credits, | |
218 | const unsigned int payload_size) | |
219 | { | |
220 | int new_val = DIV_ROUND_UP(payload_size, SMB2_MAX_BUFFER_SIZE); | |
221 | ||
222 | if (!credits->value || credits->value == new_val) | |
223 | return 0; | |
224 | ||
225 | if (credits->value < new_val) { | |
226 | WARN_ONCE(1, "request has less credits (%d) than required (%d)", | |
227 | credits->value, new_val); | |
228 | return -ENOTSUPP; | |
229 | } | |
230 | ||
231 | spin_lock(&server->req_lock); | |
232 | ||
233 | if (server->reconnect_instance != credits->instance) { | |
234 | spin_unlock(&server->req_lock); | |
3175eb9b | 235 | cifs_server_dbg(VFS, "trying to return %d credits to old session\n", |
9a1c67e8 PS |
236 | credits->value - new_val); |
237 | return -EAGAIN; | |
238 | } | |
239 | ||
240 | server->credits += credits->value - new_val; | |
241 | spin_unlock(&server->req_lock); | |
242 | wake_up(&server->request_q); | |
243 | credits->value = new_val; | |
244 | return 0; | |
245 | } | |
246 | ||
2dc7e1c0 PS |
247 | static __u64 |
248 | smb2_get_next_mid(struct TCP_Server_Info *server) | |
249 | { | |
250 | __u64 mid; | |
251 | /* for SMB2 we need the current value */ | |
252 | spin_lock(&GlobalMid_Lock); | |
253 | mid = server->CurrentMid++; | |
254 | spin_unlock(&GlobalMid_Lock); | |
255 | return mid; | |
256 | } | |
1080ef75 | 257 | |
c781af7e PS |
258 | static void |
259 | smb2_revert_current_mid(struct TCP_Server_Info *server, const unsigned int val) | |
260 | { | |
261 | spin_lock(&GlobalMid_Lock); | |
262 | if (server->CurrentMid >= val) | |
263 | server->CurrentMid -= val; | |
264 | spin_unlock(&GlobalMid_Lock); | |
265 | } | |
266 | ||
093b2bda | 267 | static struct mid_q_entry * |
ac873aa3 | 268 | __smb2_find_mid(struct TCP_Server_Info *server, char *buf, bool dequeue) |
093b2bda PS |
269 | { |
270 | struct mid_q_entry *mid; | |
49f466bd | 271 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
31473fc4 | 272 | __u64 wire_mid = le64_to_cpu(shdr->MessageId); |
093b2bda | 273 | |
31473fc4 | 274 | if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) { |
3175eb9b | 275 | cifs_server_dbg(VFS, "Encrypted frame parsing not supported yet\n"); |
373512ec SF |
276 | return NULL; |
277 | } | |
278 | ||
093b2bda PS |
279 | spin_lock(&GlobalMid_Lock); |
280 | list_for_each_entry(mid, &server->pending_mid_q, qhead) { | |
9235d098 | 281 | if ((mid->mid == wire_mid) && |
093b2bda | 282 | (mid->mid_state == MID_REQUEST_SUBMITTED) && |
31473fc4 | 283 | (mid->command == shdr->Command)) { |
696e420b | 284 | kref_get(&mid->refcount); |
ac873aa3 RS |
285 | if (dequeue) { |
286 | list_del_init(&mid->qhead); | |
287 | mid->mid_flags |= MID_DELETED; | |
288 | } | |
093b2bda PS |
289 | spin_unlock(&GlobalMid_Lock); |
290 | return mid; | |
291 | } | |
292 | } | |
293 | spin_unlock(&GlobalMid_Lock); | |
294 | return NULL; | |
295 | } | |
296 | ||
ac873aa3 RS |
297 | static struct mid_q_entry * |
298 | smb2_find_mid(struct TCP_Server_Info *server, char *buf) | |
299 | { | |
300 | return __smb2_find_mid(server, buf, false); | |
301 | } | |
302 | ||
303 | static struct mid_q_entry * | |
304 | smb2_find_dequeue_mid(struct TCP_Server_Info *server, char *buf) | |
305 | { | |
306 | return __smb2_find_mid(server, buf, true); | |
307 | } | |
308 | ||
093b2bda | 309 | static void |
14547f7d | 310 | smb2_dump_detail(void *buf, struct TCP_Server_Info *server) |
093b2bda PS |
311 | { |
312 | #ifdef CONFIG_CIFS_DEBUG2 | |
49f466bd | 313 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
093b2bda | 314 | |
3175eb9b | 315 | cifs_server_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n", |
31473fc4 PS |
316 | shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId, |
317 | shdr->ProcessId); | |
3175eb9b | 318 | cifs_server_dbg(VFS, "smb buf %p len %u\n", buf, |
71992e62 | 319 | server->ops->calc_smb_size(buf, server)); |
093b2bda PS |
320 | #endif |
321 | } | |
322 | ||
ec2e4523 PS |
323 | static bool |
324 | smb2_need_neg(struct TCP_Server_Info *server) | |
325 | { | |
326 | return server->max_read == 0; | |
327 | } | |
328 | ||
329 | static int | |
330 | smb2_negotiate(const unsigned int xid, struct cifs_ses *ses) | |
331 | { | |
332 | int rc; | |
a205d500 | 333 | |
f6a6bf7c | 334 | cifs_ses_server(ses)->CurrentMid = 0; |
ec2e4523 PS |
335 | rc = SMB2_negotiate(xid, ses); |
336 | /* BB we probably don't need to retry with modern servers */ | |
337 | if (rc == -EAGAIN) | |
338 | rc = -EHOSTDOWN; | |
339 | return rc; | |
340 | } | |
341 | ||
3a3bab50 | 342 | static unsigned int |
3fa1c6d1 | 343 | smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3a3bab50 PS |
344 | { |
345 | struct TCP_Server_Info *server = tcon->ses->server; | |
346 | unsigned int wsize; | |
347 | ||
348 | /* start with specified wsize, or default */ | |
3fa1c6d1 | 349 | wsize = ctx->wsize ? ctx->wsize : CIFS_DEFAULT_IOSIZE; |
3a3bab50 | 350 | wsize = min_t(unsigned int, wsize, server->max_write); |
cb7e9eab PS |
351 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) |
352 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 353 | |
3a3bab50 PS |
354 | return wsize; |
355 | } | |
356 | ||
3d621230 | 357 | static unsigned int |
3fa1c6d1 | 358 | smb3_negotiate_wsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3d621230 SF |
359 | { |
360 | struct TCP_Server_Info *server = tcon->ses->server; | |
361 | unsigned int wsize; | |
362 | ||
363 | /* start with specified wsize, or default */ | |
3fa1c6d1 | 364 | wsize = ctx->wsize ? ctx->wsize : SMB3_DEFAULT_IOSIZE; |
3d621230 SF |
365 | wsize = min_t(unsigned int, wsize, server->max_write); |
366 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
367 | if (server->rdma) { | |
368 | if (server->sign) | |
f7950cb0 LL |
369 | /* |
370 | * Account for SMB2 data transfer packet header and | |
371 | * possible encryption header | |
372 | */ | |
3d621230 | 373 | wsize = min_t(unsigned int, |
f7950cb0 LL |
374 | wsize, |
375 | server->smbd_conn->max_fragmented_send_size - | |
376 | SMB2_READWRITE_PDU_HEADER_SIZE - | |
377 | sizeof(struct smb2_transform_hdr)); | |
3d621230 SF |
378 | else |
379 | wsize = min_t(unsigned int, | |
380 | wsize, server->smbd_conn->max_readwrite_size); | |
381 | } | |
382 | #endif | |
383 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
384 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
385 | ||
386 | return wsize; | |
387 | } | |
388 | ||
3a3bab50 | 389 | static unsigned int |
3fa1c6d1 | 390 | smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3a3bab50 PS |
391 | { |
392 | struct TCP_Server_Info *server = tcon->ses->server; | |
393 | unsigned int rsize; | |
394 | ||
395 | /* start with specified rsize, or default */ | |
3fa1c6d1 | 396 | rsize = ctx->rsize ? ctx->rsize : CIFS_DEFAULT_IOSIZE; |
3a3bab50 | 397 | rsize = min_t(unsigned int, rsize, server->max_read); |
bed9da02 PS |
398 | |
399 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
400 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 401 | |
3a3bab50 PS |
402 | return rsize; |
403 | } | |
404 | ||
3d621230 | 405 | static unsigned int |
3fa1c6d1 | 406 | smb3_negotiate_rsize(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) |
3d621230 SF |
407 | { |
408 | struct TCP_Server_Info *server = tcon->ses->server; | |
409 | unsigned int rsize; | |
410 | ||
411 | /* start with specified rsize, or default */ | |
3fa1c6d1 | 412 | rsize = ctx->rsize ? ctx->rsize : SMB3_DEFAULT_IOSIZE; |
3d621230 SF |
413 | rsize = min_t(unsigned int, rsize, server->max_read); |
414 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
415 | if (server->rdma) { | |
416 | if (server->sign) | |
f7950cb0 LL |
417 | /* |
418 | * Account for SMB2 data transfer packet header and | |
419 | * possible encryption header | |
420 | */ | |
3d621230 | 421 | rsize = min_t(unsigned int, |
f7950cb0 LL |
422 | rsize, |
423 | server->smbd_conn->max_fragmented_recv_size - | |
424 | SMB2_READWRITE_PDU_HEADER_SIZE - | |
425 | sizeof(struct smb2_transform_hdr)); | |
3d621230 SF |
426 | else |
427 | rsize = min_t(unsigned int, | |
428 | rsize, server->smbd_conn->max_readwrite_size); | |
429 | } | |
430 | #endif | |
431 | ||
432 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
433 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
434 | ||
435 | return rsize; | |
436 | } | |
fe856be4 AA |
437 | |
438 | static int | |
439 | parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf, | |
440 | size_t buf_len, | |
441 | struct cifs_server_iface **iface_list, | |
442 | size_t *iface_count) | |
443 | { | |
444 | struct network_interface_info_ioctl_rsp *p; | |
445 | struct sockaddr_in *addr4; | |
446 | struct sockaddr_in6 *addr6; | |
447 | struct iface_info_ipv4 *p4; | |
448 | struct iface_info_ipv6 *p6; | |
449 | struct cifs_server_iface *info; | |
450 | ssize_t bytes_left; | |
451 | size_t next = 0; | |
452 | int nb_iface = 0; | |
453 | int rc = 0; | |
454 | ||
455 | *iface_list = NULL; | |
456 | *iface_count = 0; | |
457 | ||
458 | /* | |
459 | * Fist pass: count and sanity check | |
460 | */ | |
461 | ||
462 | bytes_left = buf_len; | |
463 | p = buf; | |
464 | while (bytes_left >= sizeof(*p)) { | |
465 | nb_iface++; | |
466 | next = le32_to_cpu(p->Next); | |
467 | if (!next) { | |
468 | bytes_left -= sizeof(*p); | |
469 | break; | |
470 | } | |
471 | p = (struct network_interface_info_ioctl_rsp *)((u8 *)p+next); | |
472 | bytes_left -= next; | |
473 | } | |
474 | ||
475 | if (!nb_iface) { | |
476 | cifs_dbg(VFS, "%s: malformed interface info\n", __func__); | |
477 | rc = -EINVAL; | |
478 | goto out; | |
479 | } | |
480 | ||
ebcd6de9 SF |
481 | /* Azure rounds the buffer size up 8, to a 16 byte boundary */ |
482 | if ((bytes_left > 8) || p->Next) | |
fe856be4 AA |
483 | cifs_dbg(VFS, "%s: incomplete interface info\n", __func__); |
484 | ||
485 | ||
486 | /* | |
487 | * Second pass: extract info to internal structure | |
488 | */ | |
489 | ||
490 | *iface_list = kcalloc(nb_iface, sizeof(**iface_list), GFP_KERNEL); | |
491 | if (!*iface_list) { | |
492 | rc = -ENOMEM; | |
493 | goto out; | |
494 | } | |
495 | ||
496 | info = *iface_list; | |
497 | bytes_left = buf_len; | |
498 | p = buf; | |
499 | while (bytes_left >= sizeof(*p)) { | |
500 | info->speed = le64_to_cpu(p->LinkSpeed); | |
501 | info->rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE); | |
502 | info->rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE); | |
503 | ||
504 | cifs_dbg(FYI, "%s: adding iface %zu\n", __func__, *iface_count); | |
505 | cifs_dbg(FYI, "%s: speed %zu bps\n", __func__, info->speed); | |
506 | cifs_dbg(FYI, "%s: capabilities 0x%08x\n", __func__, | |
507 | le32_to_cpu(p->Capability)); | |
508 | ||
509 | switch (p->Family) { | |
510 | /* | |
511 | * The kernel and wire socket structures have the same | |
512 | * layout and use network byte order but make the | |
513 | * conversion explicit in case either one changes. | |
514 | */ | |
515 | case INTERNETWORK: | |
516 | addr4 = (struct sockaddr_in *)&info->sockaddr; | |
517 | p4 = (struct iface_info_ipv4 *)p->Buffer; | |
518 | addr4->sin_family = AF_INET; | |
519 | memcpy(&addr4->sin_addr, &p4->IPv4Address, 4); | |
520 | ||
521 | /* [MS-SMB2] 2.2.32.5.1.1 Clients MUST ignore these */ | |
522 | addr4->sin_port = cpu_to_be16(CIFS_PORT); | |
523 | ||
524 | cifs_dbg(FYI, "%s: ipv4 %pI4\n", __func__, | |
525 | &addr4->sin_addr); | |
526 | break; | |
527 | case INTERNETWORKV6: | |
528 | addr6 = (struct sockaddr_in6 *)&info->sockaddr; | |
529 | p6 = (struct iface_info_ipv6 *)p->Buffer; | |
530 | addr6->sin6_family = AF_INET6; | |
531 | memcpy(&addr6->sin6_addr, &p6->IPv6Address, 16); | |
532 | ||
533 | /* [MS-SMB2] 2.2.32.5.1.2 Clients MUST ignore these */ | |
534 | addr6->sin6_flowinfo = 0; | |
535 | addr6->sin6_scope_id = 0; | |
536 | addr6->sin6_port = cpu_to_be16(CIFS_PORT); | |
537 | ||
538 | cifs_dbg(FYI, "%s: ipv6 %pI6\n", __func__, | |
539 | &addr6->sin6_addr); | |
540 | break; | |
541 | default: | |
542 | cifs_dbg(VFS, | |
543 | "%s: skipping unsupported socket family\n", | |
544 | __func__); | |
545 | goto next_iface; | |
546 | } | |
547 | ||
548 | (*iface_count)++; | |
549 | info++; | |
550 | next_iface: | |
551 | next = le32_to_cpu(p->Next); | |
552 | if (!next) | |
553 | break; | |
554 | p = (struct network_interface_info_ioctl_rsp *)((u8 *)p+next); | |
555 | bytes_left -= next; | |
556 | } | |
557 | ||
558 | if (!*iface_count) { | |
559 | rc = -EINVAL; | |
560 | goto out; | |
561 | } | |
562 | ||
563 | out: | |
564 | if (rc) { | |
565 | kfree(*iface_list); | |
566 | *iface_count = 0; | |
567 | *iface_list = NULL; | |
568 | } | |
569 | return rc; | |
570 | } | |
571 | ||
35adffed AA |
572 | static int compare_iface(const void *ia, const void *ib) |
573 | { | |
574 | const struct cifs_server_iface *a = (struct cifs_server_iface *)ia; | |
575 | const struct cifs_server_iface *b = (struct cifs_server_iface *)ib; | |
576 | ||
577 | return a->speed == b->speed ? 0 : (a->speed > b->speed ? -1 : 1); | |
578 | } | |
fe856be4 | 579 | |
c481e9fe SF |
580 | static int |
581 | SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon) | |
582 | { | |
583 | int rc; | |
584 | unsigned int ret_data_len = 0; | |
fe856be4 AA |
585 | struct network_interface_info_ioctl_rsp *out_buf = NULL; |
586 | struct cifs_server_iface *iface_list; | |
587 | size_t iface_count; | |
588 | struct cifs_ses *ses = tcon->ses; | |
c481e9fe SF |
589 | |
590 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
591 | FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */, | |
592 | NULL /* no data input */, 0 /* no data input */, | |
153322f7 | 593 | CIFSMaxBufSize, (char **)&out_buf, &ret_data_len); |
c3ed4402 SF |
594 | if (rc == -EOPNOTSUPP) { |
595 | cifs_dbg(FYI, | |
596 | "server does not support query network interfaces\n"); | |
597 | goto out; | |
598 | } else if (rc != 0) { | |
3175eb9b | 599 | cifs_tcon_dbg(VFS, "error %d on ioctl to get interface list\n", rc); |
fe856be4 | 600 | goto out; |
9ffc5412 | 601 | } |
fe856be4 AA |
602 | |
603 | rc = parse_server_interfaces(out_buf, ret_data_len, | |
604 | &iface_list, &iface_count); | |
605 | if (rc) | |
606 | goto out; | |
607 | ||
35adffed AA |
608 | /* sort interfaces from fastest to slowest */ |
609 | sort(iface_list, iface_count, sizeof(*iface_list), compare_iface, NULL); | |
610 | ||
fe856be4 AA |
611 | spin_lock(&ses->iface_lock); |
612 | kfree(ses->iface_list); | |
613 | ses->iface_list = iface_list; | |
614 | ses->iface_count = iface_count; | |
615 | ses->iface_last_update = jiffies; | |
616 | spin_unlock(&ses->iface_lock); | |
617 | ||
618 | out: | |
24df1483 | 619 | kfree(out_buf); |
c481e9fe SF |
620 | return rc; |
621 | } | |
c481e9fe | 622 | |
9da6ec77 RS |
623 | static void |
624 | smb2_close_cached_fid(struct kref *ref) | |
a93864d9 | 625 | { |
9da6ec77 RS |
626 | struct cached_fid *cfid = container_of(ref, struct cached_fid, |
627 | refcount); | |
628 | ||
a93864d9 RS |
629 | if (cfid->is_valid) { |
630 | cifs_dbg(FYI, "clear cached root file handle\n"); | |
631 | SMB2_close(0, cfid->tcon, cfid->fid->persistent_fid, | |
632 | cfid->fid->volatile_fid); | |
633 | cfid->is_valid = false; | |
b0f6df73 | 634 | cfid->file_all_info_is_valid = false; |
d9191319 | 635 | cfid->has_lease = false; |
a93864d9 | 636 | } |
9da6ec77 RS |
637 | } |
638 | ||
639 | void close_shroot(struct cached_fid *cfid) | |
640 | { | |
641 | mutex_lock(&cfid->fid_mutex); | |
642 | kref_put(&cfid->refcount, smb2_close_cached_fid); | |
a93864d9 RS |
643 | mutex_unlock(&cfid->fid_mutex); |
644 | } | |
645 | ||
d9191319 PS |
646 | void close_shroot_lease_locked(struct cached_fid *cfid) |
647 | { | |
648 | if (cfid->has_lease) { | |
649 | cfid->has_lease = false; | |
650 | kref_put(&cfid->refcount, smb2_close_cached_fid); | |
651 | } | |
652 | } | |
653 | ||
654 | void close_shroot_lease(struct cached_fid *cfid) | |
655 | { | |
656 | mutex_lock(&cfid->fid_mutex); | |
657 | close_shroot_lease_locked(cfid); | |
658 | mutex_unlock(&cfid->fid_mutex); | |
659 | } | |
660 | ||
9da6ec77 RS |
661 | void |
662 | smb2_cached_lease_break(struct work_struct *work) | |
663 | { | |
664 | struct cached_fid *cfid = container_of(work, | |
665 | struct cached_fid, lease_break); | |
666 | ||
d9191319 | 667 | close_shroot_lease(cfid); |
9da6ec77 RS |
668 | } |
669 | ||
3d4ef9a1 SF |
670 | /* |
671 | * Open the directory at the root of a share | |
672 | */ | |
0f060936 | 673 | int open_shroot(unsigned int xid, struct cifs_tcon *tcon, |
9e81e8ff RS |
674 | struct cifs_sb_info *cifs_sb, |
675 | struct cached_fid **cfid) | |
3d4ef9a1 | 676 | { |
b0f6df73 RS |
677 | struct cifs_ses *ses = tcon->ses; |
678 | struct TCP_Server_Info *server = ses->server; | |
679 | struct cifs_open_parms oparms; | |
680 | struct smb2_create_rsp *o_rsp = NULL; | |
681 | struct smb2_query_info_rsp *qi_rsp = NULL; | |
682 | int resp_buftype[2]; | |
683 | struct smb_rqst rqst[2]; | |
684 | struct kvec rsp_iov[2]; | |
685 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
686 | struct kvec qi_iov[1]; | |
687 | int rc, flags = 0; | |
688 | __le16 utf16_path = 0; /* Null - since an open of top of share */ | |
a93864d9 | 689 | u8 oplock = SMB2_OPLOCK_LEVEL_II; |
9e81e8ff | 690 | struct cifs_fid *pfid; |
3d4ef9a1 | 691 | |
a93864d9 RS |
692 | mutex_lock(&tcon->crfid.fid_mutex); |
693 | if (tcon->crfid.is_valid) { | |
3d4ef9a1 | 694 | cifs_dbg(FYI, "found a cached root file handle\n"); |
9e81e8ff | 695 | *cfid = &tcon->crfid; |
9da6ec77 | 696 | kref_get(&tcon->crfid.refcount); |
a93864d9 | 697 | mutex_unlock(&tcon->crfid.fid_mutex); |
3d4ef9a1 SF |
698 | return 0; |
699 | } | |
700 | ||
96d9f7ed SF |
701 | /* |
702 | * We do not hold the lock for the open because in case | |
703 | * SMB2_open needs to reconnect, it will end up calling | |
704 | * cifs_mark_open_files_invalid() which takes the lock again | |
705 | * thus causing a deadlock | |
706 | */ | |
707 | ||
708 | mutex_unlock(&tcon->crfid.fid_mutex); | |
709 | ||
b0f6df73 RS |
710 | if (smb3_encryption_required(tcon)) |
711 | flags |= CIFS_TRANSFORM_REQ; | |
712 | ||
0fe0781f PA |
713 | if (!server->ops->new_lease_key) |
714 | return -EIO; | |
715 | ||
9e81e8ff | 716 | pfid = tcon->crfid.fid; |
0fe0781f PA |
717 | server->ops->new_lease_key(pfid); |
718 | ||
b0f6df73 RS |
719 | memset(rqst, 0, sizeof(rqst)); |
720 | resp_buftype[0] = resp_buftype[1] = CIFS_NO_BUFFER; | |
721 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
722 | ||
723 | /* Open */ | |
724 | memset(&open_iov, 0, sizeof(open_iov)); | |
725 | rqst[0].rq_iov = open_iov; | |
726 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
727 | ||
728 | oparms.tcon = tcon; | |
0f060936 | 729 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
b0f6df73 RS |
730 | oparms.desired_access = FILE_READ_ATTRIBUTES; |
731 | oparms.disposition = FILE_OPEN; | |
732 | oparms.fid = pfid; | |
733 | oparms.reconnect = false; | |
734 | ||
352d96f3 AA |
735 | rc = SMB2_open_init(tcon, server, |
736 | &rqst[0], &oplock, &oparms, &utf16_path); | |
b0f6df73 | 737 | if (rc) |
96d9f7ed | 738 | goto oshr_free; |
b0f6df73 RS |
739 | smb2_set_next_command(tcon, &rqst[0]); |
740 | ||
741 | memset(&qi_iov, 0, sizeof(qi_iov)); | |
742 | rqst[1].rq_iov = qi_iov; | |
743 | rqst[1].rq_nvec = 1; | |
744 | ||
352d96f3 AA |
745 | rc = SMB2_query_info_init(tcon, server, |
746 | &rqst[1], COMPOUND_FID, | |
b0f6df73 RS |
747 | COMPOUND_FID, FILE_ALL_INFORMATION, |
748 | SMB2_O_INFO_FILE, 0, | |
749 | sizeof(struct smb2_file_all_info) + | |
750 | PATH_MAX * 2, 0, NULL); | |
751 | if (rc) | |
96d9f7ed | 752 | goto oshr_free; |
b0f6df73 RS |
753 | |
754 | smb2_set_related(&rqst[1]); | |
755 | ||
352d96f3 AA |
756 | rc = compound_send_recv(xid, ses, server, |
757 | flags, 2, rqst, | |
b0f6df73 | 758 | resp_buftype, rsp_iov); |
7e5a70ad AA |
759 | mutex_lock(&tcon->crfid.fid_mutex); |
760 | ||
761 | /* | |
762 | * Now we need to check again as the cached root might have | |
763 | * been successfully re-opened from a concurrent process | |
764 | */ | |
765 | ||
766 | if (tcon->crfid.is_valid) { | |
767 | /* work was already done */ | |
768 | ||
769 | /* stash fids for close() later */ | |
770 | struct cifs_fid fid = { | |
771 | .persistent_fid = pfid->persistent_fid, | |
772 | .volatile_fid = pfid->volatile_fid, | |
773 | }; | |
774 | ||
775 | /* | |
776 | * caller expects this func to set pfid to a valid | |
777 | * cached root, so we copy the existing one and get a | |
778 | * reference. | |
779 | */ | |
780 | memcpy(pfid, tcon->crfid.fid, sizeof(*pfid)); | |
781 | kref_get(&tcon->crfid.refcount); | |
782 | ||
783 | mutex_unlock(&tcon->crfid.fid_mutex); | |
784 | ||
785 | if (rc == 0) { | |
786 | /* close extra handle outside of crit sec */ | |
787 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
788 | } | |
77577de6 | 789 | rc = 0; |
7e5a70ad AA |
790 | goto oshr_free; |
791 | } | |
792 | ||
793 | /* Cached root is still invalid, continue normaly */ | |
794 | ||
7dcc82c2 SF |
795 | if (rc) { |
796 | if (rc == -EREMCHG) { | |
797 | tcon->need_reconnect = true; | |
a0a3036b JP |
798 | pr_warn_once("server share %s deleted\n", |
799 | tcon->treeName); | |
7dcc82c2 | 800 | } |
b0f6df73 | 801 | goto oshr_exit; |
7dcc82c2 | 802 | } |
b0f6df73 | 803 | |
d2f15428 SF |
804 | atomic_inc(&tcon->num_remote_opens); |
805 | ||
b0f6df73 RS |
806 | o_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base; |
807 | oparms.fid->persistent_fid = o_rsp->PersistentFileId; | |
808 | oparms.fid->volatile_fid = o_rsp->VolatileFileId; | |
809 | #ifdef CONFIG_CIFS_DEBUG2 | |
810 | oparms.fid->mid = le64_to_cpu(o_rsp->sync_hdr.MessageId); | |
811 | #endif /* CIFS_DEBUG2 */ | |
812 | ||
b0f6df73 RS |
813 | memcpy(tcon->crfid.fid, pfid, sizeof(struct cifs_fid)); |
814 | tcon->crfid.tcon = tcon; | |
815 | tcon->crfid.is_valid = true; | |
816 | kref_init(&tcon->crfid.refcount); | |
b0f6df73 | 817 | |
89a5bfa3 | 818 | /* BB TBD check to see if oplock level check can be removed below */ |
2f94a312 RS |
819 | if (o_rsp->OplockLevel == SMB2_OPLOCK_LEVEL_LEASE) { |
820 | kref_get(&tcon->crfid.refcount); | |
d9191319 | 821 | tcon->crfid.has_lease = true; |
89a5bfa3 SF |
822 | smb2_parse_contexts(server, o_rsp, |
823 | &oparms.fid->epoch, | |
69dda305 AA |
824 | oparms.fid->lease_key, &oplock, |
825 | NULL, NULL); | |
2f94a312 RS |
826 | } else |
827 | goto oshr_exit; | |
b0f6df73 RS |
828 | |
829 | qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base; | |
830 | if (le32_to_cpu(qi_rsp->OutputBufferLength) < sizeof(struct smb2_file_all_info)) | |
831 | goto oshr_exit; | |
4811e309 | 832 | if (!smb2_validate_and_copy_iov( |
b0f6df73 RS |
833 | le16_to_cpu(qi_rsp->OutputBufferOffset), |
834 | sizeof(struct smb2_file_all_info), | |
835 | &rsp_iov[1], sizeof(struct smb2_file_all_info), | |
4811e309 | 836 | (char *)&tcon->crfid.file_all_info)) |
720aec01 | 837 | tcon->crfid.file_all_info_is_valid = true; |
b0f6df73 | 838 | |
7e5a70ad | 839 | oshr_exit: |
a93864d9 | 840 | mutex_unlock(&tcon->crfid.fid_mutex); |
7e5a70ad | 841 | oshr_free: |
b0f6df73 RS |
842 | SMB2_open_free(&rqst[0]); |
843 | SMB2_query_info_free(&rqst[1]); | |
844 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
845 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
9e81e8ff RS |
846 | if (rc == 0) |
847 | *cfid = &tcon->crfid; | |
3d4ef9a1 SF |
848 | return rc; |
849 | } | |
850 | ||
af6a12ea | 851 | static void |
0f060936 AG |
852 | smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon, |
853 | struct cifs_sb_info *cifs_sb) | |
af6a12ea SF |
854 | { |
855 | int rc; | |
856 | __le16 srch_path = 0; /* Null - open root of share */ | |
857 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
858 | struct cifs_open_parms oparms; | |
859 | struct cifs_fid fid; | |
3d4ef9a1 | 860 | bool no_cached_open = tcon->nohandlecache; |
9e81e8ff | 861 | struct cached_fid *cfid = NULL; |
af6a12ea SF |
862 | |
863 | oparms.tcon = tcon; | |
864 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
865 | oparms.disposition = FILE_OPEN; | |
0f060936 | 866 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
af6a12ea SF |
867 | oparms.fid = &fid; |
868 | oparms.reconnect = false; | |
869 | ||
9e81e8ff | 870 | if (no_cached_open) { |
9d874c36 | 871 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, |
69dda305 | 872 | NULL, NULL); |
9e81e8ff RS |
873 | } else { |
874 | rc = open_shroot(xid, tcon, cifs_sb, &cfid); | |
875 | if (rc == 0) | |
876 | memcpy(&fid, cfid->fid, sizeof(struct cifs_fid)); | |
877 | } | |
af6a12ea SF |
878 | if (rc) |
879 | return; | |
880 | ||
c481e9fe | 881 | SMB3_request_interfaces(xid, tcon); |
c481e9fe | 882 | |
af6a12ea SF |
883 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
884 | FS_ATTRIBUTE_INFORMATION); | |
885 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
886 | FS_DEVICE_INFORMATION); | |
21ba3845 SF |
887 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
888 | FS_VOLUME_INFORMATION); | |
af6a12ea SF |
889 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
890 | FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */ | |
3d4ef9a1 SF |
891 | if (no_cached_open) |
892 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
9da6ec77 | 893 | else |
9e81e8ff | 894 | close_shroot(cfid); |
af6a12ea SF |
895 | } |
896 | ||
34f62640 | 897 | static void |
0f060936 AG |
898 | smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon, |
899 | struct cifs_sb_info *cifs_sb) | |
34f62640 SF |
900 | { |
901 | int rc; | |
902 | __le16 srch_path = 0; /* Null - open root of share */ | |
903 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
904 | struct cifs_open_parms oparms; | |
905 | struct cifs_fid fid; | |
906 | ||
907 | oparms.tcon = tcon; | |
908 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
909 | oparms.disposition = FILE_OPEN; | |
0f060936 | 910 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
34f62640 SF |
911 | oparms.fid = &fid; |
912 | oparms.reconnect = false; | |
913 | ||
69dda305 AA |
914 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, |
915 | NULL, NULL); | |
34f62640 SF |
916 | if (rc) |
917 | return; | |
918 | ||
2167114c SF |
919 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
920 | FS_ATTRIBUTE_INFORMATION); | |
921 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
922 | FS_DEVICE_INFORMATION); | |
34f62640 | 923 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
34f62640 SF |
924 | } |
925 | ||
2503a0db PS |
926 | static int |
927 | smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, | |
928 | struct cifs_sb_info *cifs_sb, const char *full_path) | |
929 | { | |
930 | int rc; | |
2503a0db | 931 | __le16 *utf16_path; |
2e44b288 | 932 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
933 | struct cifs_open_parms oparms; |
934 | struct cifs_fid fid; | |
2503a0db | 935 | |
a93864d9 | 936 | if ((*full_path == 0) && tcon->crfid.is_valid) |
3d4ef9a1 SF |
937 | return 0; |
938 | ||
2503a0db PS |
939 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); |
940 | if (!utf16_path) | |
941 | return -ENOMEM; | |
942 | ||
064f6047 PS |
943 | oparms.tcon = tcon; |
944 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
945 | oparms.disposition = FILE_OPEN; | |
0f060936 | 946 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
064f6047 | 947 | oparms.fid = &fid; |
9cbc0b73 | 948 | oparms.reconnect = false; |
064f6047 | 949 | |
69dda305 AA |
950 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL, |
951 | NULL); | |
2503a0db PS |
952 | if (rc) { |
953 | kfree(utf16_path); | |
954 | return rc; | |
955 | } | |
956 | ||
064f6047 | 957 | rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
2503a0db PS |
958 | kfree(utf16_path); |
959 | return rc; | |
960 | } | |
961 | ||
be4cb9e3 PS |
962 | static int |
963 | smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, | |
964 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
965 | u64 *uniqueid, FILE_ALL_INFO *data) | |
966 | { | |
967 | *uniqueid = le64_to_cpu(data->IndexNumber); | |
968 | return 0; | |
969 | } | |
970 | ||
b7546bc5 PS |
971 | static int |
972 | smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, | |
973 | struct cifs_fid *fid, FILE_ALL_INFO *data) | |
974 | { | |
975 | int rc; | |
976 | struct smb2_file_all_info *smb2_data; | |
977 | ||
1bbe4997 | 978 | smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2, |
b7546bc5 PS |
979 | GFP_KERNEL); |
980 | if (smb2_data == NULL) | |
981 | return -ENOMEM; | |
982 | ||
983 | rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid, | |
984 | smb2_data); | |
985 | if (!rc) | |
986 | move_smb2_info_to_cifs(data, smb2_data); | |
987 | kfree(smb2_data); | |
988 | return rc; | |
989 | } | |
990 | ||
1368f155 | 991 | #ifdef CONFIG_CIFS_XATTR |
95907fea RS |
992 | static ssize_t |
993 | move_smb2_ea_to_cifs(char *dst, size_t dst_size, | |
994 | struct smb2_file_full_ea_info *src, size_t src_size, | |
995 | const unsigned char *ea_name) | |
996 | { | |
997 | int rc = 0; | |
998 | unsigned int ea_name_len = ea_name ? strlen(ea_name) : 0; | |
999 | char *name, *value; | |
0c5d6cb6 | 1000 | size_t buf_size = dst_size; |
95907fea RS |
1001 | size_t name_len, value_len, user_name_len; |
1002 | ||
1003 | while (src_size > 0) { | |
1004 | name = &src->ea_data[0]; | |
1005 | name_len = (size_t)src->ea_name_length; | |
1006 | value = &src->ea_data[src->ea_name_length + 1]; | |
1007 | value_len = (size_t)le16_to_cpu(src->ea_value_length); | |
1008 | ||
a205d500 | 1009 | if (name_len == 0) |
95907fea | 1010 | break; |
95907fea RS |
1011 | |
1012 | if (src_size < 8 + name_len + 1 + value_len) { | |
1013 | cifs_dbg(FYI, "EA entry goes beyond length of list\n"); | |
1014 | rc = -EIO; | |
1015 | goto out; | |
1016 | } | |
1017 | ||
1018 | if (ea_name) { | |
1019 | if (ea_name_len == name_len && | |
1020 | memcmp(ea_name, name, name_len) == 0) { | |
1021 | rc = value_len; | |
1022 | if (dst_size == 0) | |
1023 | goto out; | |
1024 | if (dst_size < value_len) { | |
1025 | rc = -ERANGE; | |
1026 | goto out; | |
1027 | } | |
1028 | memcpy(dst, value, value_len); | |
1029 | goto out; | |
1030 | } | |
1031 | } else { | |
1032 | /* 'user.' plus a terminating null */ | |
1033 | user_name_len = 5 + 1 + name_len; | |
1034 | ||
0c5d6cb6 RS |
1035 | if (buf_size == 0) { |
1036 | /* skip copy - calc size only */ | |
1037 | rc += user_name_len; | |
1038 | } else if (dst_size >= user_name_len) { | |
95907fea RS |
1039 | dst_size -= user_name_len; |
1040 | memcpy(dst, "user.", 5); | |
1041 | dst += 5; | |
1042 | memcpy(dst, src->ea_data, name_len); | |
1043 | dst += name_len; | |
1044 | *dst = 0; | |
1045 | ++dst; | |
0c5d6cb6 | 1046 | rc += user_name_len; |
95907fea RS |
1047 | } else { |
1048 | /* stop before overrun buffer */ | |
1049 | rc = -ERANGE; | |
1050 | break; | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | if (!src->next_entry_offset) | |
1055 | break; | |
1056 | ||
1057 | if (src_size < le32_to_cpu(src->next_entry_offset)) { | |
1058 | /* stop before overrun buffer */ | |
1059 | rc = -ERANGE; | |
1060 | break; | |
1061 | } | |
1062 | src_size -= le32_to_cpu(src->next_entry_offset); | |
1063 | src = (void *)((char *)src + | |
1064 | le32_to_cpu(src->next_entry_offset)); | |
1065 | } | |
1066 | ||
1067 | /* didn't find the named attribute */ | |
1068 | if (ea_name) | |
1069 | rc = -ENODATA; | |
1070 | ||
1071 | out: | |
1072 | return (ssize_t)rc; | |
1073 | } | |
1074 | ||
1075 | static ssize_t | |
1076 | smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon, | |
1077 | const unsigned char *path, const unsigned char *ea_name, | |
1078 | char *ea_data, size_t buf_size, | |
1079 | struct cifs_sb_info *cifs_sb) | |
1080 | { | |
1081 | int rc; | |
1082 | __le16 *utf16_path; | |
f9793b6f RS |
1083 | struct kvec rsp_iov = {NULL, 0}; |
1084 | int buftype = CIFS_NO_BUFFER; | |
1085 | struct smb2_query_info_rsp *rsp; | |
1086 | struct smb2_file_full_ea_info *info = NULL; | |
95907fea RS |
1087 | |
1088 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1089 | if (!utf16_path) | |
1090 | return -ENOMEM; | |
1091 | ||
f9793b6f RS |
1092 | rc = smb2_query_info_compound(xid, tcon, utf16_path, |
1093 | FILE_READ_EA, | |
1094 | FILE_FULL_EA_INFORMATION, | |
1095 | SMB2_O_INFO_FILE, | |
c4627e66 RS |
1096 | CIFSMaxBufSize - |
1097 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
1098 | MAX_SMB2_CLOSE_RESPONSE_SIZE, | |
f9793b6f | 1099 | &rsp_iov, &buftype, cifs_sb); |
95907fea | 1100 | if (rc) { |
f9793b6f RS |
1101 | /* |
1102 | * If ea_name is NULL (listxattr) and there are no EAs, | |
1103 | * return 0 as it's not an error. Otherwise, the specified | |
1104 | * ea_name was not found. | |
1105 | */ | |
1106 | if (!ea_name && rc == -ENODATA) | |
1107 | rc = 0; | |
1108 | goto qeas_exit; | |
95907fea RS |
1109 | } |
1110 | ||
f9793b6f RS |
1111 | rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; |
1112 | rc = smb2_validate_iov(le16_to_cpu(rsp->OutputBufferOffset), | |
1113 | le32_to_cpu(rsp->OutputBufferLength), | |
1114 | &rsp_iov, | |
1115 | sizeof(struct smb2_file_full_ea_info)); | |
1116 | if (rc) | |
1117 | goto qeas_exit; | |
95907fea | 1118 | |
f9793b6f RS |
1119 | info = (struct smb2_file_full_ea_info *)( |
1120 | le16_to_cpu(rsp->OutputBufferOffset) + (char *)rsp); | |
1121 | rc = move_smb2_ea_to_cifs(ea_data, buf_size, info, | |
1122 | le32_to_cpu(rsp->OutputBufferLength), ea_name); | |
95907fea | 1123 | |
f9793b6f RS |
1124 | qeas_exit: |
1125 | kfree(utf16_path); | |
1126 | free_rsp_buf(buftype, rsp_iov.iov_base); | |
95907fea RS |
1127 | return rc; |
1128 | } | |
1129 | ||
5517554e RS |
1130 | |
1131 | static int | |
1132 | smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, | |
1133 | const char *path, const char *ea_name, const void *ea_value, | |
1134 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
1135 | struct cifs_sb_info *cifs_sb) | |
1136 | { | |
0967e545 | 1137 | struct cifs_ses *ses = tcon->ses; |
352d96f3 | 1138 | struct TCP_Server_Info *server = cifs_pick_channel(ses); |
0967e545 | 1139 | __le16 *utf16_path = NULL; |
5517554e | 1140 | int ea_name_len = strlen(ea_name); |
0967e545 | 1141 | int flags = 0; |
5517554e | 1142 | int len; |
0967e545 RS |
1143 | struct smb_rqst rqst[3]; |
1144 | int resp_buftype[3]; | |
1145 | struct kvec rsp_iov[3]; | |
1146 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
1147 | struct cifs_open_parms oparms; | |
1148 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1149 | struct cifs_fid fid; | |
1150 | struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE]; | |
1151 | unsigned int size[1]; | |
1152 | void *data[1]; | |
1153 | struct smb2_file_full_ea_info *ea = NULL; | |
1154 | struct kvec close_iov[1]; | |
85db6b7a RS |
1155 | struct smb2_query_info_rsp *rsp; |
1156 | int rc, used_len = 0; | |
0967e545 RS |
1157 | |
1158 | if (smb3_encryption_required(tcon)) | |
1159 | flags |= CIFS_TRANSFORM_REQ; | |
5517554e RS |
1160 | |
1161 | if (ea_name_len > 255) | |
1162 | return -EINVAL; | |
1163 | ||
1164 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1165 | if (!utf16_path) | |
1166 | return -ENOMEM; | |
1167 | ||
0967e545 RS |
1168 | memset(rqst, 0, sizeof(rqst)); |
1169 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; | |
1170 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
1171 | ||
21094641 RS |
1172 | if (ses->server->ops->query_all_EAs) { |
1173 | if (!ea_value) { | |
1174 | rc = ses->server->ops->query_all_EAs(xid, tcon, path, | |
1175 | ea_name, NULL, 0, | |
1176 | cifs_sb); | |
1177 | if (rc == -ENODATA) | |
1178 | goto sea_exit; | |
85db6b7a RS |
1179 | } else { |
1180 | /* If we are adding a attribute we should first check | |
1181 | * if there will be enough space available to store | |
1182 | * the new EA. If not we should not add it since we | |
1183 | * would not be able to even read the EAs back. | |
1184 | */ | |
1185 | rc = smb2_query_info_compound(xid, tcon, utf16_path, | |
1186 | FILE_READ_EA, | |
1187 | FILE_FULL_EA_INFORMATION, | |
1188 | SMB2_O_INFO_FILE, | |
1189 | CIFSMaxBufSize - | |
1190 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
1191 | MAX_SMB2_CLOSE_RESPONSE_SIZE, | |
1192 | &rsp_iov[1], &resp_buftype[1], cifs_sb); | |
1193 | if (rc == 0) { | |
1194 | rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base; | |
1195 | used_len = le32_to_cpu(rsp->OutputBufferLength); | |
1196 | } | |
1197 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1198 | resp_buftype[1] = CIFS_NO_BUFFER; | |
1199 | memset(&rsp_iov[1], 0, sizeof(rsp_iov[1])); | |
1200 | rc = 0; | |
1201 | ||
1202 | /* Use a fudge factor of 256 bytes in case we collide | |
1203 | * with a different set_EAs command. | |
1204 | */ | |
1205 | if(CIFSMaxBufSize - MAX_SMB2_CREATE_RESPONSE_SIZE - | |
1206 | MAX_SMB2_CLOSE_RESPONSE_SIZE - 256 < | |
1207 | used_len + ea_name_len + ea_value_len + 1) { | |
1208 | rc = -ENOSPC; | |
1209 | goto sea_exit; | |
1210 | } | |
21094641 RS |
1211 | } |
1212 | } | |
1213 | ||
0967e545 RS |
1214 | /* Open */ |
1215 | memset(&open_iov, 0, sizeof(open_iov)); | |
1216 | rqst[0].rq_iov = open_iov; | |
1217 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
1218 | ||
1219 | memset(&oparms, 0, sizeof(oparms)); | |
5517554e RS |
1220 | oparms.tcon = tcon; |
1221 | oparms.desired_access = FILE_WRITE_EA; | |
1222 | oparms.disposition = FILE_OPEN; | |
0f060936 | 1223 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
5517554e RS |
1224 | oparms.fid = &fid; |
1225 | oparms.reconnect = false; | |
1226 | ||
352d96f3 AA |
1227 | rc = SMB2_open_init(tcon, server, |
1228 | &rqst[0], &oplock, &oparms, utf16_path); | |
0967e545 RS |
1229 | if (rc) |
1230 | goto sea_exit; | |
e77fe73c | 1231 | smb2_set_next_command(tcon, &rqst[0]); |
0967e545 RS |
1232 | |
1233 | ||
1234 | /* Set Info */ | |
1235 | memset(&si_iov, 0, sizeof(si_iov)); | |
1236 | rqst[1].rq_iov = si_iov; | |
1237 | rqst[1].rq_nvec = 1; | |
5517554e | 1238 | |
64b7f674 | 1239 | len = sizeof(*ea) + ea_name_len + ea_value_len + 1; |
5517554e RS |
1240 | ea = kzalloc(len, GFP_KERNEL); |
1241 | if (ea == NULL) { | |
0967e545 RS |
1242 | rc = -ENOMEM; |
1243 | goto sea_exit; | |
5517554e RS |
1244 | } |
1245 | ||
1246 | ea->ea_name_length = ea_name_len; | |
1247 | ea->ea_value_length = cpu_to_le16(ea_value_len); | |
1248 | memcpy(ea->ea_data, ea_name, ea_name_len + 1); | |
1249 | memcpy(ea->ea_data + ea_name_len + 1, ea_value, ea_value_len); | |
1250 | ||
0967e545 RS |
1251 | size[0] = len; |
1252 | data[0] = ea; | |
1253 | ||
352d96f3 AA |
1254 | rc = SMB2_set_info_init(tcon, server, |
1255 | &rqst[1], COMPOUND_FID, | |
0967e545 RS |
1256 | COMPOUND_FID, current->tgid, |
1257 | FILE_FULL_EA_INFORMATION, | |
1258 | SMB2_O_INFO_FILE, 0, data, size); | |
e77fe73c | 1259 | smb2_set_next_command(tcon, &rqst[1]); |
0967e545 | 1260 | smb2_set_related(&rqst[1]); |
6aa0c114 | 1261 | |
5517554e | 1262 | |
0967e545 RS |
1263 | /* Close */ |
1264 | memset(&close_iov, 0, sizeof(close_iov)); | |
1265 | rqst[2].rq_iov = close_iov; | |
1266 | rqst[2].rq_nvec = 1; | |
352d96f3 AA |
1267 | rc = SMB2_close_init(tcon, server, |
1268 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
0967e545 RS |
1269 | smb2_set_related(&rqst[2]); |
1270 | ||
352d96f3 AA |
1271 | rc = compound_send_recv(xid, ses, server, |
1272 | flags, 3, rqst, | |
0967e545 | 1273 | resp_buftype, rsp_iov); |
d2f15428 | 1274 | /* no need to bump num_remote_opens because handle immediately closed */ |
0967e545 RS |
1275 | |
1276 | sea_exit: | |
1277 | kfree(ea); | |
1278 | kfree(utf16_path); | |
1279 | SMB2_open_free(&rqst[0]); | |
1280 | SMB2_set_info_free(&rqst[1]); | |
1281 | SMB2_close_free(&rqst[2]); | |
1282 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
1283 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1284 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
5517554e RS |
1285 | return rc; |
1286 | } | |
1368f155 | 1287 | #endif |
5517554e | 1288 | |
9094fad1 PS |
1289 | static bool |
1290 | smb2_can_echo(struct TCP_Server_Info *server) | |
1291 | { | |
1292 | return server->echoes; | |
1293 | } | |
1294 | ||
d60622eb PS |
1295 | static void |
1296 | smb2_clear_stats(struct cifs_tcon *tcon) | |
1297 | { | |
d60622eb | 1298 | int i; |
a205d500 | 1299 | |
d60622eb PS |
1300 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { |
1301 | atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0); | |
1302 | atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0); | |
1303 | } | |
d60622eb PS |
1304 | } |
1305 | ||
769ee6a4 SF |
1306 | static void |
1307 | smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon) | |
1308 | { | |
1309 | seq_puts(m, "\n\tShare Capabilities:"); | |
1310 | if (tcon->capabilities & SMB2_SHARE_CAP_DFS) | |
1311 | seq_puts(m, " DFS,"); | |
1312 | if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY) | |
1313 | seq_puts(m, " CONTINUOUS AVAILABILITY,"); | |
1314 | if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT) | |
1315 | seq_puts(m, " SCALEOUT,"); | |
1316 | if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER) | |
1317 | seq_puts(m, " CLUSTER,"); | |
1318 | if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC) | |
1319 | seq_puts(m, " ASYMMETRIC,"); | |
1320 | if (tcon->capabilities == 0) | |
1321 | seq_puts(m, " None"); | |
af6a12ea SF |
1322 | if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE) |
1323 | seq_puts(m, " Aligned,"); | |
1324 | if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE) | |
1325 | seq_puts(m, " Partition Aligned,"); | |
1326 | if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY) | |
1327 | seq_puts(m, " SSD,"); | |
1328 | if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED) | |
1329 | seq_puts(m, " TRIM-support,"); | |
1330 | ||
769ee6a4 | 1331 | seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags); |
e0386e44 | 1332 | seq_printf(m, "\n\ttid: 0x%x", tcon->tid); |
af6a12ea SF |
1333 | if (tcon->perf_sector_size) |
1334 | seq_printf(m, "\tOptimal sector size: 0x%x", | |
1335 | tcon->perf_sector_size); | |
e0386e44 | 1336 | seq_printf(m, "\tMaximal Access: 0x%x", tcon->maximal_access); |
769ee6a4 SF |
1337 | } |
1338 | ||
d60622eb PS |
1339 | static void |
1340 | smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon) | |
1341 | { | |
d60622eb PS |
1342 | atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent; |
1343 | atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed; | |
1995d28f SF |
1344 | |
1345 | /* | |
1346 | * Can't display SMB2_NEGOTIATE, SESSION_SETUP, LOGOFF, CANCEL and ECHO | |
1347 | * totals (requests sent) since those SMBs are per-session not per tcon | |
1348 | */ | |
52ce1ac4 SF |
1349 | seq_printf(m, "\nBytes read: %llu Bytes written: %llu", |
1350 | (long long)(tcon->bytes_read), | |
1351 | (long long)(tcon->bytes_written)); | |
fae8044c SF |
1352 | seq_printf(m, "\nOpen files: %d total (local), %d open on server", |
1353 | atomic_read(&tcon->num_local_opens), | |
1354 | atomic_read(&tcon->num_remote_opens)); | |
1995d28f | 1355 | seq_printf(m, "\nTreeConnects: %d total %d failed", |
d60622eb PS |
1356 | atomic_read(&sent[SMB2_TREE_CONNECT_HE]), |
1357 | atomic_read(&failed[SMB2_TREE_CONNECT_HE])); | |
1995d28f | 1358 | seq_printf(m, "\nTreeDisconnects: %d total %d failed", |
d60622eb PS |
1359 | atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]), |
1360 | atomic_read(&failed[SMB2_TREE_DISCONNECT_HE])); | |
1995d28f | 1361 | seq_printf(m, "\nCreates: %d total %d failed", |
d60622eb PS |
1362 | atomic_read(&sent[SMB2_CREATE_HE]), |
1363 | atomic_read(&failed[SMB2_CREATE_HE])); | |
1995d28f | 1364 | seq_printf(m, "\nCloses: %d total %d failed", |
d60622eb PS |
1365 | atomic_read(&sent[SMB2_CLOSE_HE]), |
1366 | atomic_read(&failed[SMB2_CLOSE_HE])); | |
1995d28f | 1367 | seq_printf(m, "\nFlushes: %d total %d failed", |
d60622eb PS |
1368 | atomic_read(&sent[SMB2_FLUSH_HE]), |
1369 | atomic_read(&failed[SMB2_FLUSH_HE])); | |
1995d28f | 1370 | seq_printf(m, "\nReads: %d total %d failed", |
d60622eb PS |
1371 | atomic_read(&sent[SMB2_READ_HE]), |
1372 | atomic_read(&failed[SMB2_READ_HE])); | |
1995d28f | 1373 | seq_printf(m, "\nWrites: %d total %d failed", |
d60622eb PS |
1374 | atomic_read(&sent[SMB2_WRITE_HE]), |
1375 | atomic_read(&failed[SMB2_WRITE_HE])); | |
1995d28f | 1376 | seq_printf(m, "\nLocks: %d total %d failed", |
d60622eb PS |
1377 | atomic_read(&sent[SMB2_LOCK_HE]), |
1378 | atomic_read(&failed[SMB2_LOCK_HE])); | |
1995d28f | 1379 | seq_printf(m, "\nIOCTLs: %d total %d failed", |
d60622eb PS |
1380 | atomic_read(&sent[SMB2_IOCTL_HE]), |
1381 | atomic_read(&failed[SMB2_IOCTL_HE])); | |
1995d28f | 1382 | seq_printf(m, "\nQueryDirectories: %d total %d failed", |
d60622eb PS |
1383 | atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]), |
1384 | atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE])); | |
1995d28f | 1385 | seq_printf(m, "\nChangeNotifies: %d total %d failed", |
d60622eb PS |
1386 | atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]), |
1387 | atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE])); | |
1995d28f | 1388 | seq_printf(m, "\nQueryInfos: %d total %d failed", |
d60622eb PS |
1389 | atomic_read(&sent[SMB2_QUERY_INFO_HE]), |
1390 | atomic_read(&failed[SMB2_QUERY_INFO_HE])); | |
1995d28f | 1391 | seq_printf(m, "\nSetInfos: %d total %d failed", |
d60622eb PS |
1392 | atomic_read(&sent[SMB2_SET_INFO_HE]), |
1393 | atomic_read(&failed[SMB2_SET_INFO_HE])); | |
1394 | seq_printf(m, "\nOplockBreaks: %d sent %d failed", | |
1395 | atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]), | |
1396 | atomic_read(&failed[SMB2_OPLOCK_BREAK_HE])); | |
d60622eb PS |
1397 | } |
1398 | ||
f0df737e PS |
1399 | static void |
1400 | smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock) | |
1401 | { | |
2b0143b5 | 1402 | struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry)); |
53ef1016 PS |
1403 | struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server; |
1404 | ||
f0df737e PS |
1405 | cfile->fid.persistent_fid = fid->persistent_fid; |
1406 | cfile->fid.volatile_fid = fid->volatile_fid; | |
86f740f2 | 1407 | cfile->fid.access = fid->access; |
dfe33f9a SF |
1408 | #ifdef CONFIG_CIFS_DEBUG2 |
1409 | cfile->fid.mid = fid->mid; | |
1410 | #endif /* CIFS_DEBUG2 */ | |
42873b0a PS |
1411 | server->ops->set_oplock_level(cinode, oplock, fid->epoch, |
1412 | &fid->purge_cache); | |
18cceb6a | 1413 | cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode); |
94f87371 | 1414 | memcpy(cfile->fid.create_guid, fid->create_guid, 16); |
f0df737e PS |
1415 | } |
1416 | ||
760ad0ca | 1417 | static void |
f0df737e PS |
1418 | smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon, |
1419 | struct cifs_fid *fid) | |
1420 | { | |
760ad0ca | 1421 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
f0df737e PS |
1422 | } |
1423 | ||
43f8a6a7 SF |
1424 | static void |
1425 | smb2_close_getattr(const unsigned int xid, struct cifs_tcon *tcon, | |
1426 | struct cifsFileInfo *cfile) | |
1427 | { | |
1428 | struct smb2_file_network_open_info file_inf; | |
1429 | struct inode *inode; | |
1430 | int rc; | |
1431 | ||
1432 | rc = __SMB2_close(xid, tcon, cfile->fid.persistent_fid, | |
1433 | cfile->fid.volatile_fid, &file_inf); | |
1434 | if (rc) | |
1435 | return; | |
1436 | ||
1437 | inode = d_inode(cfile->dentry); | |
1438 | ||
1439 | spin_lock(&inode->i_lock); | |
1440 | CIFS_I(inode)->time = jiffies; | |
1441 | ||
1442 | /* Creation time should not need to be updated on close */ | |
1443 | if (file_inf.LastWriteTime) | |
1444 | inode->i_mtime = cifs_NTtimeToUnix(file_inf.LastWriteTime); | |
1445 | if (file_inf.ChangeTime) | |
1446 | inode->i_ctime = cifs_NTtimeToUnix(file_inf.ChangeTime); | |
1447 | if (file_inf.LastAccessTime) | |
1448 | inode->i_atime = cifs_NTtimeToUnix(file_inf.LastAccessTime); | |
1449 | ||
1450 | /* | |
1451 | * i_blocks is not related to (i_size / i_blksize), | |
1452 | * but instead 512 byte (2**9) size is required for | |
1453 | * calculating num blocks. | |
1454 | */ | |
1455 | if (le64_to_cpu(file_inf.AllocationSize) > 4096) | |
1456 | inode->i_blocks = | |
1457 | (512 - 1 + le64_to_cpu(file_inf.AllocationSize)) >> 9; | |
1458 | ||
1459 | /* End of file and Attributes should not have to be updated on close */ | |
1460 | spin_unlock(&inode->i_lock); | |
1461 | } | |
1462 | ||
41c1358e SF |
1463 | static int |
1464 | SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon, | |
1465 | u64 persistent_fid, u64 volatile_fid, | |
1466 | struct copychunk_ioctl *pcchunk) | |
1467 | { | |
1468 | int rc; | |
1469 | unsigned int ret_data_len; | |
1470 | struct resume_key_req *res_key; | |
1471 | ||
1472 | rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid, | |
1473 | FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */, | |
153322f7 | 1474 | NULL, 0 /* no input */, CIFSMaxBufSize, |
41c1358e SF |
1475 | (char **)&res_key, &ret_data_len); |
1476 | ||
1477 | if (rc) { | |
3175eb9b | 1478 | cifs_tcon_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc); |
41c1358e SF |
1479 | goto req_res_key_exit; |
1480 | } | |
1481 | if (ret_data_len < sizeof(struct resume_key_req)) { | |
3175eb9b | 1482 | cifs_tcon_dbg(VFS, "Invalid refcopy resume key length\n"); |
41c1358e SF |
1483 | rc = -EINVAL; |
1484 | goto req_res_key_exit; | |
1485 | } | |
1486 | memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE); | |
1487 | ||
1488 | req_res_key_exit: | |
1489 | kfree(res_key); | |
1490 | return rc; | |
1491 | } | |
1492 | ||
b2ca6c2c RS |
1493 | struct iqi_vars { |
1494 | struct smb_rqst rqst[3]; | |
1495 | struct kvec rsp_iov[3]; | |
1496 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
1497 | struct kvec qi_iov[1]; | |
1498 | struct kvec io_iov[SMB2_IOCTL_IOV_SIZE]; | |
1499 | struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE]; | |
1500 | struct kvec close_iov[1]; | |
1501 | }; | |
1502 | ||
f5b05d62 RS |
1503 | static int |
1504 | smb2_ioctl_query_info(const unsigned int xid, | |
8d8b26e5 | 1505 | struct cifs_tcon *tcon, |
0f060936 | 1506 | struct cifs_sb_info *cifs_sb, |
8d8b26e5 | 1507 | __le16 *path, int is_dir, |
f5b05d62 RS |
1508 | unsigned long p) |
1509 | { | |
b2ca6c2c RS |
1510 | struct iqi_vars *vars; |
1511 | struct smb_rqst *rqst; | |
1512 | struct kvec *rsp_iov; | |
f5b05d62 | 1513 | struct cifs_ses *ses = tcon->ses; |
352d96f3 | 1514 | struct TCP_Server_Info *server = cifs_pick_channel(ses); |
f5b05d62 RS |
1515 | char __user *arg = (char __user *)p; |
1516 | struct smb_query_info qi; | |
1517 | struct smb_query_info __user *pqi; | |
1518 | int rc = 0; | |
1519 | int flags = 0; | |
f5778c39 RS |
1520 | struct smb2_query_info_rsp *qi_rsp = NULL; |
1521 | struct smb2_ioctl_rsp *io_rsp = NULL; | |
8d8b26e5 | 1522 | void *buffer = NULL; |
8d8b26e5 | 1523 | int resp_buftype[3]; |
8d8b26e5 RS |
1524 | struct cifs_open_parms oparms; |
1525 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1526 | struct cifs_fid fid; | |
0e90696d RS |
1527 | unsigned int size[2]; |
1528 | void *data[2]; | |
0f060936 | 1529 | int create_options = is_dir ? CREATE_NOT_FILE : CREATE_NOT_DIR; |
8d8b26e5 | 1530 | |
b2ca6c2c RS |
1531 | vars = kzalloc(sizeof(*vars), GFP_ATOMIC); |
1532 | if (vars == NULL) | |
1533 | return -ENOMEM; | |
1534 | rqst = &vars->rqst[0]; | |
1535 | rsp_iov = &vars->rsp_iov[0]; | |
1536 | ||
8d8b26e5 | 1537 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; |
f5b05d62 RS |
1538 | |
1539 | if (copy_from_user(&qi, arg, sizeof(struct smb_query_info))) | |
b2ca6c2c | 1540 | goto e_fault; |
f5b05d62 | 1541 | |
b2ca6c2c RS |
1542 | if (qi.output_buffer_length > 1024) { |
1543 | kfree(vars); | |
f5b05d62 | 1544 | return -EINVAL; |
b2ca6c2c | 1545 | } |
f5b05d62 | 1546 | |
352d96f3 | 1547 | if (!ses || !server) { |
b2ca6c2c | 1548 | kfree(vars); |
f5b05d62 | 1549 | return -EIO; |
b2ca6c2c | 1550 | } |
f5b05d62 RS |
1551 | |
1552 | if (smb3_encryption_required(tcon)) | |
1553 | flags |= CIFS_TRANSFORM_REQ; | |
1554 | ||
cfaa1181 ME |
1555 | buffer = memdup_user(arg + sizeof(struct smb_query_info), |
1556 | qi.output_buffer_length); | |
b2ca6c2c RS |
1557 | if (IS_ERR(buffer)) { |
1558 | kfree(vars); | |
cfaa1181 | 1559 | return PTR_ERR(buffer); |
b2ca6c2c | 1560 | } |
f5b05d62 | 1561 | |
8d8b26e5 | 1562 | /* Open */ |
b2ca6c2c | 1563 | rqst[0].rq_iov = &vars->open_iov[0]; |
8d8b26e5 RS |
1564 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; |
1565 | ||
1566 | memset(&oparms, 0, sizeof(oparms)); | |
1567 | oparms.tcon = tcon; | |
8d8b26e5 | 1568 | oparms.disposition = FILE_OPEN; |
0f060936 | 1569 | oparms.create_options = cifs_create_options(cifs_sb, create_options); |
8d8b26e5 RS |
1570 | oparms.fid = &fid; |
1571 | oparms.reconnect = false; | |
1572 | ||
efac779b RS |
1573 | if (qi.flags & PASSTHRU_FSCTL) { |
1574 | switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { | |
1575 | case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: | |
1576 | oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; | |
46e66619 SF |
1577 | break; |
1578 | case FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS: | |
1579 | oparms.desired_access = GENERIC_ALL; | |
1580 | break; | |
1581 | case FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS: | |
1582 | oparms.desired_access = GENERIC_READ; | |
1583 | break; | |
1584 | case FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS: | |
1585 | oparms.desired_access = GENERIC_WRITE; | |
efac779b RS |
1586 | break; |
1587 | } | |
0e90696d RS |
1588 | } else if (qi.flags & PASSTHRU_SET_INFO) { |
1589 | oparms.desired_access = GENERIC_WRITE; | |
1590 | } else { | |
1591 | oparms.desired_access = FILE_READ_ATTRIBUTES | READ_CONTROL; | |
efac779b RS |
1592 | } |
1593 | ||
352d96f3 AA |
1594 | rc = SMB2_open_init(tcon, server, |
1595 | &rqst[0], &oplock, &oparms, path); | |
8d8b26e5 RS |
1596 | if (rc) |
1597 | goto iqinf_exit; | |
e77fe73c | 1598 | smb2_set_next_command(tcon, &rqst[0]); |
8d8b26e5 RS |
1599 | |
1600 | /* Query */ | |
31ba4331 SF |
1601 | if (qi.flags & PASSTHRU_FSCTL) { |
1602 | /* Can eventually relax perm check since server enforces too */ | |
1603 | if (!capable(CAP_SYS_ADMIN)) | |
1604 | rc = -EPERM; | |
f5778c39 | 1605 | else { |
b2ca6c2c | 1606 | rqst[1].rq_iov = &vars->io_iov[0]; |
f5778c39 RS |
1607 | rqst[1].rq_nvec = SMB2_IOCTL_IOV_SIZE; |
1608 | ||
352d96f3 AA |
1609 | rc = SMB2_ioctl_init(tcon, server, |
1610 | &rqst[1], | |
f5778c39 | 1611 | COMPOUND_FID, COMPOUND_FID, |
efac779b RS |
1612 | qi.info_type, true, buffer, |
1613 | qi.output_buffer_length, | |
731b82bb RS |
1614 | CIFSMaxBufSize - |
1615 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
1616 | MAX_SMB2_CLOSE_RESPONSE_SIZE); | |
f5778c39 | 1617 | } |
0e90696d RS |
1618 | } else if (qi.flags == PASSTHRU_SET_INFO) { |
1619 | /* Can eventually relax perm check since server enforces too */ | |
1620 | if (!capable(CAP_SYS_ADMIN)) | |
1621 | rc = -EPERM; | |
1622 | else { | |
b2ca6c2c | 1623 | rqst[1].rq_iov = &vars->si_iov[0]; |
0e90696d RS |
1624 | rqst[1].rq_nvec = 1; |
1625 | ||
1626 | size[0] = 8; | |
1627 | data[0] = buffer; | |
1628 | ||
352d96f3 AA |
1629 | rc = SMB2_set_info_init(tcon, server, |
1630 | &rqst[1], | |
0e90696d RS |
1631 | COMPOUND_FID, COMPOUND_FID, |
1632 | current->tgid, | |
1633 | FILE_END_OF_FILE_INFORMATION, | |
1634 | SMB2_O_INFO_FILE, 0, data, size); | |
1635 | } | |
31ba4331 | 1636 | } else if (qi.flags == PASSTHRU_QUERY_INFO) { |
b2ca6c2c | 1637 | rqst[1].rq_iov = &vars->qi_iov[0]; |
31ba4331 SF |
1638 | rqst[1].rq_nvec = 1; |
1639 | ||
352d96f3 AA |
1640 | rc = SMB2_query_info_init(tcon, server, |
1641 | &rqst[1], COMPOUND_FID, | |
31ba4331 SF |
1642 | COMPOUND_FID, qi.file_info_class, |
1643 | qi.info_type, qi.additional_information, | |
f5b05d62 RS |
1644 | qi.input_buffer_length, |
1645 | qi.output_buffer_length, buffer); | |
31ba4331 | 1646 | } else { /* unknown flags */ |
a0a3036b JP |
1647 | cifs_tcon_dbg(VFS, "Invalid passthru query flags: 0x%x\n", |
1648 | qi.flags); | |
31ba4331 SF |
1649 | rc = -EINVAL; |
1650 | } | |
1651 | ||
f5b05d62 RS |
1652 | if (rc) |
1653 | goto iqinf_exit; | |
e77fe73c | 1654 | smb2_set_next_command(tcon, &rqst[1]); |
8d8b26e5 RS |
1655 | smb2_set_related(&rqst[1]); |
1656 | ||
1657 | /* Close */ | |
b2ca6c2c | 1658 | rqst[2].rq_iov = &vars->close_iov[0]; |
8d8b26e5 | 1659 | rqst[2].rq_nvec = 1; |
f5b05d62 | 1660 | |
352d96f3 AA |
1661 | rc = SMB2_close_init(tcon, server, |
1662 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
f5b05d62 RS |
1663 | if (rc) |
1664 | goto iqinf_exit; | |
8d8b26e5 | 1665 | smb2_set_related(&rqst[2]); |
f5b05d62 | 1666 | |
352d96f3 AA |
1667 | rc = compound_send_recv(xid, ses, server, |
1668 | flags, 3, rqst, | |
8d8b26e5 RS |
1669 | resp_buftype, rsp_iov); |
1670 | if (rc) | |
1671 | goto iqinf_exit; | |
d2f15428 SF |
1672 | |
1673 | /* No need to bump num_remote_opens since handle immediately closed */ | |
f5778c39 RS |
1674 | if (qi.flags & PASSTHRU_FSCTL) { |
1675 | pqi = (struct smb_query_info __user *)arg; | |
1676 | io_rsp = (struct smb2_ioctl_rsp *)rsp_iov[1].iov_base; | |
1677 | if (le32_to_cpu(io_rsp->OutputCount) < qi.input_buffer_length) | |
1678 | qi.input_buffer_length = le32_to_cpu(io_rsp->OutputCount); | |
5242fcb7 | 1679 | if (qi.input_buffer_length > 0 && |
2b1116bb ME |
1680 | le32_to_cpu(io_rsp->OutputOffset) + qi.input_buffer_length |
1681 | > rsp_iov[1].iov_len) | |
1682 | goto e_fault; | |
1683 | ||
1684 | if (copy_to_user(&pqi->input_buffer_length, | |
1685 | &qi.input_buffer_length, | |
1686 | sizeof(qi.input_buffer_length))) | |
1687 | goto e_fault; | |
1688 | ||
5242fcb7 RS |
1689 | if (copy_to_user((void __user *)pqi + sizeof(struct smb_query_info), |
1690 | (const void *)io_rsp + le32_to_cpu(io_rsp->OutputOffset), | |
2b1116bb ME |
1691 | qi.input_buffer_length)) |
1692 | goto e_fault; | |
f5778c39 RS |
1693 | } else { |
1694 | pqi = (struct smb_query_info __user *)arg; | |
1695 | qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base; | |
1696 | if (le32_to_cpu(qi_rsp->OutputBufferLength) < qi.input_buffer_length) | |
1697 | qi.input_buffer_length = le32_to_cpu(qi_rsp->OutputBufferLength); | |
2b1116bb ME |
1698 | if (copy_to_user(&pqi->input_buffer_length, |
1699 | &qi.input_buffer_length, | |
1700 | sizeof(qi.input_buffer_length))) | |
1701 | goto e_fault; | |
1702 | ||
1703 | if (copy_to_user(pqi + 1, qi_rsp->Buffer, | |
1704 | qi.input_buffer_length)) | |
1705 | goto e_fault; | |
f5b05d62 RS |
1706 | } |
1707 | ||
1708 | iqinf_exit: | |
b2ca6c2c | 1709 | kfree(vars); |
8d8b26e5 RS |
1710 | kfree(buffer); |
1711 | SMB2_open_free(&rqst[0]); | |
f5778c39 RS |
1712 | if (qi.flags & PASSTHRU_FSCTL) |
1713 | SMB2_ioctl_free(&rqst[1]); | |
1714 | else | |
1715 | SMB2_query_info_free(&rqst[1]); | |
1716 | ||
8d8b26e5 RS |
1717 | SMB2_close_free(&rqst[2]); |
1718 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
1719 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
1720 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
f5b05d62 | 1721 | return rc; |
2b1116bb ME |
1722 | |
1723 | e_fault: | |
1724 | rc = -EFAULT; | |
1725 | goto iqinf_exit; | |
f5b05d62 RS |
1726 | } |
1727 | ||
620d8745 | 1728 | static ssize_t |
312bbc59 | 1729 | smb2_copychunk_range(const unsigned int xid, |
41c1358e SF |
1730 | struct cifsFileInfo *srcfile, |
1731 | struct cifsFileInfo *trgtfile, u64 src_off, | |
1732 | u64 len, u64 dest_off) | |
1733 | { | |
1734 | int rc; | |
1735 | unsigned int ret_data_len; | |
1736 | struct copychunk_ioctl *pcchunk; | |
9bf0c9cd SF |
1737 | struct copychunk_ioctl_rsp *retbuf = NULL; |
1738 | struct cifs_tcon *tcon; | |
1739 | int chunks_copied = 0; | |
1740 | bool chunk_sizes_updated = false; | |
620d8745 | 1741 | ssize_t bytes_written, total_bytes_written = 0; |
41c1358e SF |
1742 | |
1743 | pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL); | |
1744 | ||
1745 | if (pcchunk == NULL) | |
1746 | return -ENOMEM; | |
1747 | ||
a205d500 | 1748 | cifs_dbg(FYI, "%s: about to call request res key\n", __func__); |
41c1358e SF |
1749 | /* Request a key from the server to identify the source of the copy */ |
1750 | rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink), | |
1751 | srcfile->fid.persistent_fid, | |
1752 | srcfile->fid.volatile_fid, pcchunk); | |
1753 | ||
1754 | /* Note: request_res_key sets res_key null only if rc !=0 */ | |
1755 | if (rc) | |
9bf0c9cd | 1756 | goto cchunk_out; |
41c1358e SF |
1757 | |
1758 | /* For now array only one chunk long, will make more flexible later */ | |
bc09d141 | 1759 | pcchunk->ChunkCount = cpu_to_le32(1); |
41c1358e | 1760 | pcchunk->Reserved = 0; |
41c1358e SF |
1761 | pcchunk->Reserved2 = 0; |
1762 | ||
9bf0c9cd | 1763 | tcon = tlink_tcon(trgtfile->tlink); |
41c1358e | 1764 | |
9bf0c9cd SF |
1765 | while (len > 0) { |
1766 | pcchunk->SourceOffset = cpu_to_le64(src_off); | |
1767 | pcchunk->TargetOffset = cpu_to_le64(dest_off); | |
1768 | pcchunk->Length = | |
1769 | cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk)); | |
41c1358e | 1770 | |
9bf0c9cd SF |
1771 | /* Request server copy to target from src identified by key */ |
1772 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
1773 | trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, | |
63a83b86 | 1774 | true /* is_fsctl */, (char *)pcchunk, |
153322f7 SF |
1775 | sizeof(struct copychunk_ioctl), CIFSMaxBufSize, |
1776 | (char **)&retbuf, &ret_data_len); | |
9bf0c9cd SF |
1777 | if (rc == 0) { |
1778 | if (ret_data_len != | |
1779 | sizeof(struct copychunk_ioctl_rsp)) { | |
a0a3036b | 1780 | cifs_tcon_dbg(VFS, "Invalid cchunk response size\n"); |
9bf0c9cd SF |
1781 | rc = -EIO; |
1782 | goto cchunk_out; | |
1783 | } | |
1784 | if (retbuf->TotalBytesWritten == 0) { | |
1785 | cifs_dbg(FYI, "no bytes copied\n"); | |
1786 | rc = -EIO; | |
1787 | goto cchunk_out; | |
1788 | } | |
1789 | /* | |
1790 | * Check if server claimed to write more than we asked | |
1791 | */ | |
1792 | if (le32_to_cpu(retbuf->TotalBytesWritten) > | |
1793 | le32_to_cpu(pcchunk->Length)) { | |
a0a3036b | 1794 | cifs_tcon_dbg(VFS, "Invalid copy chunk response\n"); |
9bf0c9cd SF |
1795 | rc = -EIO; |
1796 | goto cchunk_out; | |
1797 | } | |
1798 | if (le32_to_cpu(retbuf->ChunksWritten) != 1) { | |
a0a3036b | 1799 | cifs_tcon_dbg(VFS, "Invalid num chunks written\n"); |
9bf0c9cd SF |
1800 | rc = -EIO; |
1801 | goto cchunk_out; | |
1802 | } | |
1803 | chunks_copied++; | |
1804 | ||
620d8745 SP |
1805 | bytes_written = le32_to_cpu(retbuf->TotalBytesWritten); |
1806 | src_off += bytes_written; | |
1807 | dest_off += bytes_written; | |
1808 | len -= bytes_written; | |
1809 | total_bytes_written += bytes_written; | |
9bf0c9cd | 1810 | |
620d8745 | 1811 | cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %zu\n", |
9bf0c9cd SF |
1812 | le32_to_cpu(retbuf->ChunksWritten), |
1813 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
620d8745 | 1814 | bytes_written); |
9bf0c9cd SF |
1815 | } else if (rc == -EINVAL) { |
1816 | if (ret_data_len != sizeof(struct copychunk_ioctl_rsp)) | |
1817 | goto cchunk_out; | |
1818 | ||
1819 | cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n", | |
1820 | le32_to_cpu(retbuf->ChunksWritten), | |
1821 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
1822 | le32_to_cpu(retbuf->TotalBytesWritten)); | |
1823 | ||
1824 | /* | |
1825 | * Check if this is the first request using these sizes, | |
1826 | * (ie check if copy succeed once with original sizes | |
1827 | * and check if the server gave us different sizes after | |
1828 | * we already updated max sizes on previous request). | |
1829 | * if not then why is the server returning an error now | |
1830 | */ | |
1831 | if ((chunks_copied != 0) || chunk_sizes_updated) | |
1832 | goto cchunk_out; | |
1833 | ||
1834 | /* Check that server is not asking us to grow size */ | |
1835 | if (le32_to_cpu(retbuf->ChunkBytesWritten) < | |
1836 | tcon->max_bytes_chunk) | |
1837 | tcon->max_bytes_chunk = | |
1838 | le32_to_cpu(retbuf->ChunkBytesWritten); | |
1839 | else | |
1840 | goto cchunk_out; /* server gave us bogus size */ | |
1841 | ||
1842 | /* No need to change MaxChunks since already set to 1 */ | |
1843 | chunk_sizes_updated = true; | |
2477bc58 SP |
1844 | } else |
1845 | goto cchunk_out; | |
9bf0c9cd | 1846 | } |
41c1358e | 1847 | |
9bf0c9cd | 1848 | cchunk_out: |
41c1358e | 1849 | kfree(pcchunk); |
24df1483 | 1850 | kfree(retbuf); |
620d8745 SP |
1851 | if (rc) |
1852 | return rc; | |
1853 | else | |
1854 | return total_bytes_written; | |
41c1358e SF |
1855 | } |
1856 | ||
7a5cfb19 PS |
1857 | static int |
1858 | smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon, | |
1859 | struct cifs_fid *fid) | |
1860 | { | |
1861 | return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
1862 | } | |
1863 | ||
09a4707e PS |
1864 | static unsigned int |
1865 | smb2_read_data_offset(char *buf) | |
1866 | { | |
1867 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
a205d500 | 1868 | |
09a4707e PS |
1869 | return rsp->DataOffset; |
1870 | } | |
1871 | ||
1872 | static unsigned int | |
74dcf418 | 1873 | smb2_read_data_length(char *buf, bool in_remaining) |
09a4707e PS |
1874 | { |
1875 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
74dcf418 LL |
1876 | |
1877 | if (in_remaining) | |
1878 | return le32_to_cpu(rsp->DataRemaining); | |
1879 | ||
09a4707e PS |
1880 | return le32_to_cpu(rsp->DataLength); |
1881 | } | |
1882 | ||
d8e05039 PS |
1883 | |
1884 | static int | |
db8b631d | 1885 | smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid, |
d8e05039 PS |
1886 | struct cifs_io_parms *parms, unsigned int *bytes_read, |
1887 | char **buf, int *buf_type) | |
1888 | { | |
db8b631d SF |
1889 | parms->persistent_fid = pfid->persistent_fid; |
1890 | parms->volatile_fid = pfid->volatile_fid; | |
d8e05039 PS |
1891 | return SMB2_read(xid, parms, bytes_read, buf, buf_type); |
1892 | } | |
1893 | ||
009d3443 | 1894 | static int |
db8b631d | 1895 | smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid, |
009d3443 PS |
1896 | struct cifs_io_parms *parms, unsigned int *written, |
1897 | struct kvec *iov, unsigned long nr_segs) | |
1898 | { | |
1899 | ||
db8b631d SF |
1900 | parms->persistent_fid = pfid->persistent_fid; |
1901 | parms->volatile_fid = pfid->volatile_fid; | |
009d3443 PS |
1902 | return SMB2_write(xid, parms, written, iov, nr_segs); |
1903 | } | |
1904 | ||
d43cc793 SF |
1905 | /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */ |
1906 | static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon, | |
1907 | struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse) | |
1908 | { | |
1909 | struct cifsInodeInfo *cifsi; | |
1910 | int rc; | |
1911 | ||
1912 | cifsi = CIFS_I(inode); | |
1913 | ||
1914 | /* if file already sparse don't bother setting sparse again */ | |
1915 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse) | |
1916 | return true; /* already sparse */ | |
1917 | ||
1918 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse) | |
1919 | return true; /* already not sparse */ | |
1920 | ||
1921 | /* | |
1922 | * Can't check for sparse support on share the usual way via the | |
1923 | * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share | |
1924 | * since Samba server doesn't set the flag on the share, yet | |
1925 | * supports the set sparse FSCTL and returns sparse correctly | |
1926 | * in the file attributes. If we fail setting sparse though we | |
1927 | * mark that server does not support sparse files for this share | |
1928 | * to avoid repeatedly sending the unsupported fsctl to server | |
1929 | * if the file is repeatedly extended. | |
1930 | */ | |
1931 | if (tcon->broken_sparse_sup) | |
1932 | return false; | |
1933 | ||
1934 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1935 | cfile->fid.volatile_fid, FSCTL_SET_SPARSE, | |
63a83b86 | 1936 | true /* is_fctl */, |
153322f7 | 1937 | &setsparse, 1, CIFSMaxBufSize, NULL, NULL); |
d43cc793 SF |
1938 | if (rc) { |
1939 | tcon->broken_sparse_sup = true; | |
1940 | cifs_dbg(FYI, "set sparse rc = %d\n", rc); | |
1941 | return false; | |
1942 | } | |
1943 | ||
1944 | if (setsparse) | |
1945 | cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE; | |
1946 | else | |
1947 | cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE); | |
1948 | ||
1949 | return true; | |
1950 | } | |
1951 | ||
c839ff24 PS |
1952 | static int |
1953 | smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon, | |
1954 | struct cifsFileInfo *cfile, __u64 size, bool set_alloc) | |
1955 | { | |
1956 | __le64 eof = cpu_to_le64(size); | |
3d1a3745 SF |
1957 | struct inode *inode; |
1958 | ||
1959 | /* | |
1960 | * If extending file more than one page make sparse. Many Linux fs | |
1961 | * make files sparse by default when extending via ftruncate | |
1962 | */ | |
2b0143b5 | 1963 | inode = d_inode(cfile->dentry); |
3d1a3745 SF |
1964 | |
1965 | if (!set_alloc && (size > inode->i_size + 8192)) { | |
3d1a3745 | 1966 | __u8 set_sparse = 1; |
d43cc793 SF |
1967 | |
1968 | /* whether set sparse succeeds or not, extend the file */ | |
1969 | smb2_set_sparse(xid, tcon, cfile, inode, set_sparse); | |
3d1a3745 SF |
1970 | } |
1971 | ||
c839ff24 | 1972 | return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
3764cbd1 | 1973 | cfile->fid.volatile_fid, cfile->pid, &eof); |
c839ff24 PS |
1974 | } |
1975 | ||
02b16665 SF |
1976 | static int |
1977 | smb2_duplicate_extents(const unsigned int xid, | |
1978 | struct cifsFileInfo *srcfile, | |
1979 | struct cifsFileInfo *trgtfile, u64 src_off, | |
1980 | u64 len, u64 dest_off) | |
1981 | { | |
1982 | int rc; | |
1983 | unsigned int ret_data_len; | |
02b16665 SF |
1984 | struct duplicate_extents_to_file dup_ext_buf; |
1985 | struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink); | |
1986 | ||
1987 | /* server fileays advertise duplicate extent support with this flag */ | |
1988 | if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) & | |
1989 | FILE_SUPPORTS_BLOCK_REFCOUNTING) == 0) | |
1990 | return -EOPNOTSUPP; | |
1991 | ||
1992 | dup_ext_buf.VolatileFileHandle = srcfile->fid.volatile_fid; | |
1993 | dup_ext_buf.PersistentFileHandle = srcfile->fid.persistent_fid; | |
1994 | dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off); | |
1995 | dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off); | |
1996 | dup_ext_buf.ByteCount = cpu_to_le64(len); | |
a205d500 | 1997 | cifs_dbg(FYI, "Duplicate extents: src off %lld dst off %lld len %lld\n", |
02b16665 SF |
1998 | src_off, dest_off, len); |
1999 | ||
2000 | rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false); | |
2001 | if (rc) | |
2002 | goto duplicate_extents_out; | |
2003 | ||
2004 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
2005 | trgtfile->fid.volatile_fid, | |
2006 | FSCTL_DUPLICATE_EXTENTS_TO_FILE, | |
63a83b86 | 2007 | true /* is_fsctl */, |
51146625 | 2008 | (char *)&dup_ext_buf, |
02b16665 | 2009 | sizeof(struct duplicate_extents_to_file), |
153322f7 | 2010 | CIFSMaxBufSize, NULL, |
02b16665 SF |
2011 | &ret_data_len); |
2012 | ||
2013 | if (ret_data_len > 0) | |
a205d500 | 2014 | cifs_dbg(FYI, "Non-zero response length in duplicate extents\n"); |
02b16665 SF |
2015 | |
2016 | duplicate_extents_out: | |
2017 | return rc; | |
2018 | } | |
02b16665 | 2019 | |
64a5cfa6 SF |
2020 | static int |
2021 | smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, | |
2022 | struct cifsFileInfo *cfile) | |
2023 | { | |
2024 | return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid, | |
2025 | cfile->fid.volatile_fid); | |
2026 | } | |
2027 | ||
b3152e2c SF |
2028 | static int |
2029 | smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon, | |
2030 | struct cifsFileInfo *cfile) | |
2031 | { | |
2032 | struct fsctl_set_integrity_information_req integr_info; | |
b3152e2c SF |
2033 | unsigned int ret_data_len; |
2034 | ||
2035 | integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED); | |
2036 | integr_info.Flags = 0; | |
2037 | integr_info.Reserved = 0; | |
2038 | ||
2039 | return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
2040 | cfile->fid.volatile_fid, | |
2041 | FSCTL_SET_INTEGRITY_INFORMATION, | |
63a83b86 | 2042 | true /* is_fsctl */, |
51146625 | 2043 | (char *)&integr_info, |
b3152e2c | 2044 | sizeof(struct fsctl_set_integrity_information_req), |
153322f7 | 2045 | CIFSMaxBufSize, NULL, |
b3152e2c SF |
2046 | &ret_data_len); |
2047 | ||
2048 | } | |
2049 | ||
e02789a5 SF |
2050 | /* GMT Token is @GMT-YYYY.MM.DD-HH.MM.SS Unicode which is 48 bytes + null */ |
2051 | #define GMT_TOKEN_SIZE 50 | |
2052 | ||
153322f7 SF |
2053 | #define MIN_SNAPSHOT_ARRAY_SIZE 16 /* See MS-SMB2 section 3.3.5.15.1 */ |
2054 | ||
e02789a5 SF |
2055 | /* |
2056 | * Input buffer contains (empty) struct smb_snapshot array with size filled in | |
2057 | * For output see struct SRV_SNAPSHOT_ARRAY in MS-SMB2 section 2.2.32.2 | |
2058 | */ | |
834170c8 SF |
2059 | static int |
2060 | smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon, | |
2061 | struct cifsFileInfo *cfile, void __user *ioc_buf) | |
2062 | { | |
2063 | char *retbuf = NULL; | |
2064 | unsigned int ret_data_len = 0; | |
2065 | int rc; | |
153322f7 | 2066 | u32 max_response_size; |
834170c8 SF |
2067 | struct smb_snapshot_array snapshot_in; |
2068 | ||
973189ab SF |
2069 | /* |
2070 | * On the first query to enumerate the list of snapshots available | |
2071 | * for this volume the buffer begins with 0 (number of snapshots | |
2072 | * which can be returned is zero since at that point we do not know | |
2073 | * how big the buffer needs to be). On the second query, | |
2074 | * it (ret_data_len) is set to number of snapshots so we can | |
2075 | * know to set the maximum response size larger (see below). | |
2076 | */ | |
153322f7 SF |
2077 | if (get_user(ret_data_len, (unsigned int __user *)ioc_buf)) |
2078 | return -EFAULT; | |
2079 | ||
2080 | /* | |
2081 | * Note that for snapshot queries that servers like Azure expect that | |
2082 | * the first query be minimal size (and just used to get the number/size | |
2083 | * of previous versions) so response size must be specified as EXACTLY | |
2084 | * sizeof(struct snapshot_array) which is 16 when rounded up to multiple | |
2085 | * of eight bytes. | |
2086 | */ | |
2087 | if (ret_data_len == 0) | |
2088 | max_response_size = MIN_SNAPSHOT_ARRAY_SIZE; | |
2089 | else | |
2090 | max_response_size = CIFSMaxBufSize; | |
2091 | ||
834170c8 SF |
2092 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, |
2093 | cfile->fid.volatile_fid, | |
2094 | FSCTL_SRV_ENUMERATE_SNAPSHOTS, | |
63a83b86 | 2095 | true /* is_fsctl */, |
153322f7 | 2096 | NULL, 0 /* no input data */, max_response_size, |
834170c8 SF |
2097 | (char **)&retbuf, |
2098 | &ret_data_len); | |
2099 | cifs_dbg(FYI, "enum snaphots ioctl returned %d and ret buflen is %d\n", | |
2100 | rc, ret_data_len); | |
2101 | if (rc) | |
2102 | return rc; | |
2103 | ||
2104 | if (ret_data_len && (ioc_buf != NULL) && (retbuf != NULL)) { | |
2105 | /* Fixup buffer */ | |
2106 | if (copy_from_user(&snapshot_in, ioc_buf, | |
2107 | sizeof(struct smb_snapshot_array))) { | |
2108 | rc = -EFAULT; | |
2109 | kfree(retbuf); | |
2110 | return rc; | |
2111 | } | |
834170c8 | 2112 | |
e02789a5 SF |
2113 | /* |
2114 | * Check for min size, ie not large enough to fit even one GMT | |
2115 | * token (snapshot). On the first ioctl some users may pass in | |
2116 | * smaller size (or zero) to simply get the size of the array | |
2117 | * so the user space caller can allocate sufficient memory | |
2118 | * and retry the ioctl again with larger array size sufficient | |
2119 | * to hold all of the snapshot GMT tokens on the second try. | |
2120 | */ | |
2121 | if (snapshot_in.snapshot_array_size < GMT_TOKEN_SIZE) | |
2122 | ret_data_len = sizeof(struct smb_snapshot_array); | |
2123 | ||
2124 | /* | |
2125 | * We return struct SRV_SNAPSHOT_ARRAY, followed by | |
2126 | * the snapshot array (of 50 byte GMT tokens) each | |
2127 | * representing an available previous version of the data | |
2128 | */ | |
2129 | if (ret_data_len > (snapshot_in.snapshot_array_size + | |
2130 | sizeof(struct smb_snapshot_array))) | |
2131 | ret_data_len = snapshot_in.snapshot_array_size + | |
2132 | sizeof(struct smb_snapshot_array); | |
834170c8 SF |
2133 | |
2134 | if (copy_to_user(ioc_buf, retbuf, ret_data_len)) | |
2135 | rc = -EFAULT; | |
2136 | } | |
2137 | ||
2138 | kfree(retbuf); | |
2139 | return rc; | |
2140 | } | |
2141 | ||
d26c2ddd SF |
2142 | |
2143 | ||
2144 | static int | |
2145 | smb3_notify(const unsigned int xid, struct file *pfile, | |
2146 | void __user *ioc_buf) | |
2147 | { | |
2148 | struct smb3_notify notify; | |
2149 | struct dentry *dentry = pfile->f_path.dentry; | |
2150 | struct inode *inode = file_inode(pfile); | |
2151 | struct cifs_sb_info *cifs_sb; | |
2152 | struct cifs_open_parms oparms; | |
2153 | struct cifs_fid fid; | |
2154 | struct cifs_tcon *tcon; | |
2155 | unsigned char *path = NULL; | |
2156 | __le16 *utf16_path = NULL; | |
2157 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2158 | int rc = 0; | |
2159 | ||
2160 | path = build_path_from_dentry(dentry); | |
2161 | if (path == NULL) | |
2162 | return -ENOMEM; | |
2163 | ||
2164 | cifs_sb = CIFS_SB(inode->i_sb); | |
2165 | ||
2166 | utf16_path = cifs_convert_path_to_utf16(path + 1, cifs_sb); | |
2167 | if (utf16_path == NULL) { | |
2168 | rc = -ENOMEM; | |
2169 | goto notify_exit; | |
2170 | } | |
2171 | ||
2172 | if (copy_from_user(¬ify, ioc_buf, sizeof(struct smb3_notify))) { | |
2173 | rc = -EFAULT; | |
2174 | goto notify_exit; | |
2175 | } | |
2176 | ||
2177 | tcon = cifs_sb_master_tcon(cifs_sb); | |
2178 | oparms.tcon = tcon; | |
4ef9b4f1 | 2179 | oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; |
d26c2ddd SF |
2180 | oparms.disposition = FILE_OPEN; |
2181 | oparms.create_options = cifs_create_options(cifs_sb, 0); | |
2182 | oparms.fid = &fid; | |
2183 | oparms.reconnect = false; | |
2184 | ||
69dda305 AA |
2185 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL, |
2186 | NULL); | |
d26c2ddd SF |
2187 | if (rc) |
2188 | goto notify_exit; | |
2189 | ||
2190 | rc = SMB2_change_notify(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
2191 | notify.watch_tree, notify.completion_filter); | |
2192 | ||
2193 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
2194 | ||
2195 | cifs_dbg(FYI, "change notify for path %s rc %d\n", path, rc); | |
2196 | ||
2197 | notify_exit: | |
2198 | kfree(path); | |
2199 | kfree(utf16_path); | |
2200 | return rc; | |
2201 | } | |
2202 | ||
d324f08d PS |
2203 | static int |
2204 | smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, | |
2205 | const char *path, struct cifs_sb_info *cifs_sb, | |
2206 | struct cifs_fid *fid, __u16 search_flags, | |
2207 | struct cifs_search_info *srch_inf) | |
2208 | { | |
2209 | __le16 *utf16_path; | |
37478608 RS |
2210 | struct smb_rqst rqst[2]; |
2211 | struct kvec rsp_iov[2]; | |
2212 | int resp_buftype[2]; | |
2213 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
2214 | struct kvec qd_iov[SMB2_QUERY_DIRECTORY_IOV_SIZE]; | |
2215 | int rc, flags = 0; | |
2216 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
064f6047 | 2217 | struct cifs_open_parms oparms; |
37478608 RS |
2218 | struct smb2_query_directory_rsp *qd_rsp = NULL; |
2219 | struct smb2_create_rsp *op_rsp = NULL; | |
352d96f3 | 2220 | struct TCP_Server_Info *server = cifs_pick_channel(tcon->ses); |
d324f08d PS |
2221 | |
2222 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
2223 | if (!utf16_path) | |
2224 | return -ENOMEM; | |
2225 | ||
37478608 RS |
2226 | if (smb3_encryption_required(tcon)) |
2227 | flags |= CIFS_TRANSFORM_REQ; | |
2228 | ||
2229 | memset(rqst, 0, sizeof(rqst)); | |
2230 | resp_buftype[0] = resp_buftype[1] = CIFS_NO_BUFFER; | |
2231 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
2232 | ||
2233 | /* Open */ | |
2234 | memset(&open_iov, 0, sizeof(open_iov)); | |
2235 | rqst[0].rq_iov = open_iov; | |
2236 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
2237 | ||
064f6047 PS |
2238 | oparms.tcon = tcon; |
2239 | oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; | |
2240 | oparms.disposition = FILE_OPEN; | |
0f060936 | 2241 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
064f6047 | 2242 | oparms.fid = fid; |
9cbc0b73 | 2243 | oparms.reconnect = false; |
064f6047 | 2244 | |
352d96f3 AA |
2245 | rc = SMB2_open_init(tcon, server, |
2246 | &rqst[0], &oplock, &oparms, utf16_path); | |
37478608 RS |
2247 | if (rc) |
2248 | goto qdf_free; | |
2249 | smb2_set_next_command(tcon, &rqst[0]); | |
d324f08d | 2250 | |
37478608 | 2251 | /* Query directory */ |
d324f08d | 2252 | srch_inf->entries_in_buffer = 0; |
0595751f | 2253 | srch_inf->index_of_last_entry = 2; |
d324f08d | 2254 | |
37478608 RS |
2255 | memset(&qd_iov, 0, sizeof(qd_iov)); |
2256 | rqst[1].rq_iov = qd_iov; | |
2257 | rqst[1].rq_nvec = SMB2_QUERY_DIRECTORY_IOV_SIZE; | |
2258 | ||
352d96f3 AA |
2259 | rc = SMB2_query_directory_init(xid, tcon, server, |
2260 | &rqst[1], | |
37478608 RS |
2261 | COMPOUND_FID, COMPOUND_FID, |
2262 | 0, srch_inf->info_level); | |
2263 | if (rc) | |
2264 | goto qdf_free; | |
2265 | ||
2266 | smb2_set_related(&rqst[1]); | |
2267 | ||
352d96f3 AA |
2268 | rc = compound_send_recv(xid, tcon->ses, server, |
2269 | flags, 2, rqst, | |
37478608 RS |
2270 | resp_buftype, rsp_iov); |
2271 | ||
2272 | /* If the open failed there is nothing to do */ | |
2273 | op_rsp = (struct smb2_create_rsp *)rsp_iov[0].iov_base; | |
2274 | if (op_rsp == NULL || op_rsp->sync_hdr.Status != STATUS_SUCCESS) { | |
2275 | cifs_dbg(FYI, "query_dir_first: open failed rc=%d\n", rc); | |
2276 | goto qdf_free; | |
2277 | } | |
2278 | fid->persistent_fid = op_rsp->PersistentFileId; | |
2279 | fid->volatile_fid = op_rsp->VolatileFileId; | |
2280 | ||
2281 | /* Anything else than ENODATA means a genuine error */ | |
2282 | if (rc && rc != -ENODATA) { | |
064f6047 | 2283 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
37478608 RS |
2284 | cifs_dbg(FYI, "query_dir_first: query directory failed rc=%d\n", rc); |
2285 | trace_smb3_query_dir_err(xid, fid->persistent_fid, | |
2286 | tcon->tid, tcon->ses->Suid, 0, 0, rc); | |
2287 | goto qdf_free; | |
2288 | } | |
2289 | ||
1be1fa42 SP |
2290 | atomic_inc(&tcon->num_remote_opens); |
2291 | ||
37478608 RS |
2292 | qd_rsp = (struct smb2_query_directory_rsp *)rsp_iov[1].iov_base; |
2293 | if (qd_rsp->sync_hdr.Status == STATUS_NO_MORE_FILES) { | |
2294 | trace_smb3_query_dir_done(xid, fid->persistent_fid, | |
2295 | tcon->tid, tcon->ses->Suid, 0, 0); | |
2296 | srch_inf->endOfSearch = true; | |
2297 | rc = 0; | |
2298 | goto qdf_free; | |
2299 | } | |
2300 | ||
2301 | rc = smb2_parse_query_directory(tcon, &rsp_iov[1], resp_buftype[1], | |
2302 | srch_inf); | |
2303 | if (rc) { | |
2304 | trace_smb3_query_dir_err(xid, fid->persistent_fid, tcon->tid, | |
2305 | tcon->ses->Suid, 0, 0, rc); | |
2306 | goto qdf_free; | |
d324f08d | 2307 | } |
37478608 RS |
2308 | resp_buftype[1] = CIFS_NO_BUFFER; |
2309 | ||
2310 | trace_smb3_query_dir_done(xid, fid->persistent_fid, tcon->tid, | |
2311 | tcon->ses->Suid, 0, srch_inf->entries_in_buffer); | |
2312 | ||
2313 | qdf_free: | |
2314 | kfree(utf16_path); | |
2315 | SMB2_open_free(&rqst[0]); | |
2316 | SMB2_query_directory_free(&rqst[1]); | |
2317 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
2318 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
d324f08d PS |
2319 | return rc; |
2320 | } | |
2321 | ||
2322 | static int | |
2323 | smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon, | |
2324 | struct cifs_fid *fid, __u16 search_flags, | |
2325 | struct cifs_search_info *srch_inf) | |
2326 | { | |
2327 | return SMB2_query_directory(xid, tcon, fid->persistent_fid, | |
2328 | fid->volatile_fid, 0, srch_inf); | |
2329 | } | |
2330 | ||
2331 | static int | |
2332 | smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon, | |
2333 | struct cifs_fid *fid) | |
2334 | { | |
2335 | return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
2336 | } | |
2337 | ||
2e44b288 | 2338 | /* |
a205d500 CP |
2339 | * If we negotiate SMB2 protocol and get STATUS_PENDING - update |
2340 | * the number of credits and return true. Otherwise - return false. | |
2341 | */ | |
2e44b288 | 2342 | static bool |
66265f13 | 2343 | smb2_is_status_pending(char *buf, struct TCP_Server_Info *server) |
2e44b288 | 2344 | { |
49f466bd | 2345 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
2e44b288 | 2346 | |
31473fc4 | 2347 | if (shdr->Status != STATUS_PENDING) |
2e44b288 PS |
2348 | return false; |
2349 | ||
66265f13 | 2350 | if (shdr->CreditRequest) { |
2e44b288 | 2351 | spin_lock(&server->req_lock); |
31473fc4 | 2352 | server->credits += le16_to_cpu(shdr->CreditRequest); |
2e44b288 PS |
2353 | spin_unlock(&server->req_lock); |
2354 | wake_up(&server->request_q); | |
2355 | } | |
2356 | ||
2357 | return true; | |
2358 | } | |
2359 | ||
511c54a2 PS |
2360 | static bool |
2361 | smb2_is_session_expired(char *buf) | |
2362 | { | |
49f466bd | 2363 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
511c54a2 | 2364 | |
d81243c6 MS |
2365 | if (shdr->Status != STATUS_NETWORK_SESSION_EXPIRED && |
2366 | shdr->Status != STATUS_USER_SESSION_DELETED) | |
511c54a2 PS |
2367 | return false; |
2368 | ||
e68a932b SF |
2369 | trace_smb3_ses_expired(shdr->TreeId, shdr->SessionId, |
2370 | le16_to_cpu(shdr->Command), | |
2371 | le64_to_cpu(shdr->MessageId)); | |
d81243c6 | 2372 | cifs_dbg(FYI, "Session expired or deleted\n"); |
e68a932b | 2373 | |
511c54a2 PS |
2374 | return true; |
2375 | } | |
2376 | ||
8e670f77 RS |
2377 | static bool |
2378 | smb2_is_status_io_timeout(char *buf) | |
2379 | { | |
2380 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; | |
2381 | ||
2382 | if (shdr->Status == STATUS_IO_TIMEOUT) | |
2383 | return true; | |
2384 | else | |
2385 | return false; | |
2386 | } | |
2387 | ||
983c88a4 PS |
2388 | static int |
2389 | smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid, | |
2390 | struct cifsInodeInfo *cinode) | |
2391 | { | |
0822f514 PS |
2392 | if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING) |
2393 | return SMB2_lease_break(0, tcon, cinode->lease_key, | |
2394 | smb2_get_lease_state(cinode)); | |
2395 | ||
983c88a4 PS |
2396 | return SMB2_oplock_break(0, tcon, fid->persistent_fid, |
2397 | fid->volatile_fid, | |
18cceb6a | 2398 | CIFS_CACHE_READ(cinode) ? 1 : 0); |
983c88a4 PS |
2399 | } |
2400 | ||
c5a5f38f | 2401 | void |
730928c8 RS |
2402 | smb2_set_related(struct smb_rqst *rqst) |
2403 | { | |
2404 | struct smb2_sync_hdr *shdr; | |
2405 | ||
2406 | shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base); | |
88a92c91 RS |
2407 | if (shdr == NULL) { |
2408 | cifs_dbg(FYI, "shdr NULL in smb2_set_related\n"); | |
2409 | return; | |
2410 | } | |
730928c8 RS |
2411 | shdr->Flags |= SMB2_FLAGS_RELATED_OPERATIONS; |
2412 | } | |
2413 | ||
2414 | char smb2_padding[7] = {0, 0, 0, 0, 0, 0, 0}; | |
2415 | ||
c5a5f38f | 2416 | void |
e77fe73c | 2417 | smb2_set_next_command(struct cifs_tcon *tcon, struct smb_rqst *rqst) |
730928c8 RS |
2418 | { |
2419 | struct smb2_sync_hdr *shdr; | |
e77fe73c RS |
2420 | struct cifs_ses *ses = tcon->ses; |
2421 | struct TCP_Server_Info *server = ses->server; | |
730928c8 | 2422 | unsigned long len = smb_rqst_len(server, rqst); |
e77fe73c | 2423 | int i, num_padding; |
730928c8 | 2424 | |
88a92c91 RS |
2425 | shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base); |
2426 | if (shdr == NULL) { | |
2427 | cifs_dbg(FYI, "shdr NULL in smb2_set_next_command\n"); | |
2428 | return; | |
2429 | } | |
2430 | ||
730928c8 | 2431 | /* SMB headers in a compound are 8 byte aligned. */ |
e77fe73c RS |
2432 | |
2433 | /* No padding needed */ | |
2434 | if (!(len & 7)) | |
2435 | goto finished; | |
2436 | ||
2437 | num_padding = 8 - (len & 7); | |
2438 | if (!smb3_encryption_required(tcon)) { | |
2439 | /* | |
2440 | * If we do not have encryption then we can just add an extra | |
2441 | * iov for the padding. | |
2442 | */ | |
2443 | rqst->rq_iov[rqst->rq_nvec].iov_base = smb2_padding; | |
2444 | rqst->rq_iov[rqst->rq_nvec].iov_len = num_padding; | |
2445 | rqst->rq_nvec++; | |
2446 | len += num_padding; | |
2447 | } else { | |
2448 | /* | |
2449 | * We can not add a small padding iov for the encryption case | |
2450 | * because the encryption framework can not handle the padding | |
2451 | * iovs. | |
2452 | * We have to flatten this into a single buffer and add | |
2453 | * the padding to it. | |
2454 | */ | |
2455 | for (i = 1; i < rqst->rq_nvec; i++) { | |
2456 | memcpy(rqst->rq_iov[0].iov_base + | |
2457 | rqst->rq_iov[0].iov_len, | |
2458 | rqst->rq_iov[i].iov_base, | |
2459 | rqst->rq_iov[i].iov_len); | |
2460 | rqst->rq_iov[0].iov_len += rqst->rq_iov[i].iov_len; | |
271b9c0c | 2461 | } |
e77fe73c RS |
2462 | memset(rqst->rq_iov[0].iov_base + rqst->rq_iov[0].iov_len, |
2463 | 0, num_padding); | |
2464 | rqst->rq_iov[0].iov_len += num_padding; | |
2465 | len += num_padding; | |
2466 | rqst->rq_nvec = 1; | |
730928c8 RS |
2467 | } |
2468 | ||
e77fe73c | 2469 | finished: |
730928c8 RS |
2470 | shdr->NextCommand = cpu_to_le32(len); |
2471 | } | |
2472 | ||
07d3b2e4 RS |
2473 | /* |
2474 | * Passes the query info response back to the caller on success. | |
2475 | * Caller need to free this with free_rsp_buf(). | |
2476 | */ | |
f9793b6f | 2477 | int |
07d3b2e4 RS |
2478 | smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon, |
2479 | __le16 *utf16_path, u32 desired_access, | |
2480 | u32 class, u32 type, u32 output_len, | |
f9793b6f RS |
2481 | struct kvec *rsp, int *buftype, |
2482 | struct cifs_sb_info *cifs_sb) | |
6fc05c25 | 2483 | { |
07d3b2e4 | 2484 | struct cifs_ses *ses = tcon->ses; |
352d96f3 | 2485 | struct TCP_Server_Info *server = cifs_pick_channel(ses); |
07d3b2e4 | 2486 | int flags = 0; |
730928c8 RS |
2487 | struct smb_rqst rqst[3]; |
2488 | int resp_buftype[3]; | |
2489 | struct kvec rsp_iov[3]; | |
4d8dfafc | 2490 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; |
730928c8 RS |
2491 | struct kvec qi_iov[1]; |
2492 | struct kvec close_iov[1]; | |
6fc05c25 | 2493 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
2494 | struct cifs_open_parms oparms; |
2495 | struct cifs_fid fid; | |
730928c8 RS |
2496 | int rc; |
2497 | ||
2498 | if (smb3_encryption_required(tcon)) | |
2499 | flags |= CIFS_TRANSFORM_REQ; | |
2500 | ||
2501 | memset(rqst, 0, sizeof(rqst)); | |
c5a5f38f | 2502 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; |
730928c8 RS |
2503 | memset(rsp_iov, 0, sizeof(rsp_iov)); |
2504 | ||
2505 | memset(&open_iov, 0, sizeof(open_iov)); | |
2506 | rqst[0].rq_iov = open_iov; | |
4d8dfafc | 2507 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; |
064f6047 PS |
2508 | |
2509 | oparms.tcon = tcon; | |
07d3b2e4 | 2510 | oparms.desired_access = desired_access; |
064f6047 | 2511 | oparms.disposition = FILE_OPEN; |
0f060936 | 2512 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
064f6047 | 2513 | oparms.fid = &fid; |
9cbc0b73 | 2514 | oparms.reconnect = false; |
6fc05c25 | 2515 | |
352d96f3 AA |
2516 | rc = SMB2_open_init(tcon, server, |
2517 | &rqst[0], &oplock, &oparms, utf16_path); | |
6fc05c25 | 2518 | if (rc) |
07d3b2e4 | 2519 | goto qic_exit; |
e77fe73c | 2520 | smb2_set_next_command(tcon, &rqst[0]); |
730928c8 RS |
2521 | |
2522 | memset(&qi_iov, 0, sizeof(qi_iov)); | |
2523 | rqst[1].rq_iov = qi_iov; | |
2524 | rqst[1].rq_nvec = 1; | |
2525 | ||
352d96f3 AA |
2526 | rc = SMB2_query_info_init(tcon, server, |
2527 | &rqst[1], COMPOUND_FID, COMPOUND_FID, | |
07d3b2e4 RS |
2528 | class, type, 0, |
2529 | output_len, 0, | |
f5b05d62 | 2530 | NULL); |
730928c8 | 2531 | if (rc) |
07d3b2e4 | 2532 | goto qic_exit; |
e77fe73c | 2533 | smb2_set_next_command(tcon, &rqst[1]); |
730928c8 RS |
2534 | smb2_set_related(&rqst[1]); |
2535 | ||
2536 | memset(&close_iov, 0, sizeof(close_iov)); | |
2537 | rqst[2].rq_iov = close_iov; | |
2538 | rqst[2].rq_nvec = 1; | |
2539 | ||
352d96f3 AA |
2540 | rc = SMB2_close_init(tcon, server, |
2541 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
730928c8 | 2542 | if (rc) |
07d3b2e4 | 2543 | goto qic_exit; |
730928c8 RS |
2544 | smb2_set_related(&rqst[2]); |
2545 | ||
352d96f3 AA |
2546 | rc = compound_send_recv(xid, ses, server, |
2547 | flags, 3, rqst, | |
730928c8 | 2548 | resp_buftype, rsp_iov); |
f9793b6f RS |
2549 | if (rc) { |
2550 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
7dcc82c2 SF |
2551 | if (rc == -EREMCHG) { |
2552 | tcon->need_reconnect = true; | |
a0a3036b JP |
2553 | pr_warn_once("server share %s deleted\n", |
2554 | tcon->treeName); | |
7dcc82c2 | 2555 | } |
07d3b2e4 | 2556 | goto qic_exit; |
f9793b6f | 2557 | } |
07d3b2e4 RS |
2558 | *rsp = rsp_iov[1]; |
2559 | *buftype = resp_buftype[1]; | |
2560 | ||
2561 | qic_exit: | |
2562 | SMB2_open_free(&rqst[0]); | |
2563 | SMB2_query_info_free(&rqst[1]); | |
2564 | SMB2_close_free(&rqst[2]); | |
2565 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
2566 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
2567 | return rc; | |
2568 | } | |
2569 | ||
2570 | static int | |
2571 | smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
0f060936 | 2572 | struct cifs_sb_info *cifs_sb, struct kstatfs *buf) |
07d3b2e4 RS |
2573 | { |
2574 | struct smb2_query_info_rsp *rsp; | |
2575 | struct smb2_fs_full_size_info *info = NULL; | |
2576 | __le16 utf16_path = 0; /* Null - open root of share */ | |
2577 | struct kvec rsp_iov = {NULL, 0}; | |
2578 | int buftype = CIFS_NO_BUFFER; | |
2579 | int rc; | |
2580 | ||
2581 | ||
2582 | rc = smb2_query_info_compound(xid, tcon, &utf16_path, | |
2583 | FILE_READ_ATTRIBUTES, | |
2584 | FS_FULL_SIZE_INFORMATION, | |
2585 | SMB2_O_INFO_FILESYSTEM, | |
2586 | sizeof(struct smb2_fs_full_size_info), | |
87f93d82 | 2587 | &rsp_iov, &buftype, cifs_sb); |
730928c8 RS |
2588 | if (rc) |
2589 | goto qfs_exit; | |
2590 | ||
07d3b2e4 | 2591 | rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; |
6fc05c25 | 2592 | buf->f_type = SMB2_MAGIC_NUMBER; |
730928c8 RS |
2593 | info = (struct smb2_fs_full_size_info *)( |
2594 | le16_to_cpu(rsp->OutputBufferOffset) + (char *)rsp); | |
2595 | rc = smb2_validate_iov(le16_to_cpu(rsp->OutputBufferOffset), | |
2596 | le32_to_cpu(rsp->OutputBufferLength), | |
07d3b2e4 | 2597 | &rsp_iov, |
730928c8 RS |
2598 | sizeof(struct smb2_fs_full_size_info)); |
2599 | if (!rc) | |
2600 | smb2_copy_fs_info_to_kstatfs(info, buf); | |
2601 | ||
2602 | qfs_exit: | |
07d3b2e4 | 2603 | free_rsp_buf(buftype, rsp_iov.iov_base); |
6fc05c25 PS |
2604 | return rc; |
2605 | } | |
2606 | ||
2d304217 SF |
2607 | static int |
2608 | smb311_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
0f060936 | 2609 | struct cifs_sb_info *cifs_sb, struct kstatfs *buf) |
2d304217 SF |
2610 | { |
2611 | int rc; | |
2612 | __le16 srch_path = 0; /* Null - open root of share */ | |
2613 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
2614 | struct cifs_open_parms oparms; | |
2615 | struct cifs_fid fid; | |
2616 | ||
2617 | if (!tcon->posix_extensions) | |
0f060936 | 2618 | return smb2_queryfs(xid, tcon, cifs_sb, buf); |
2d304217 SF |
2619 | |
2620 | oparms.tcon = tcon; | |
2621 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
2622 | oparms.disposition = FILE_OPEN; | |
0f060936 | 2623 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
2d304217 SF |
2624 | oparms.fid = &fid; |
2625 | oparms.reconnect = false; | |
2626 | ||
69dda305 AA |
2627 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, |
2628 | NULL, NULL); | |
2d304217 SF |
2629 | if (rc) |
2630 | return rc; | |
2631 | ||
2632 | rc = SMB311_posix_qfs_info(xid, tcon, fid.persistent_fid, | |
2633 | fid.volatile_fid, buf); | |
2634 | buf->f_type = SMB2_MAGIC_NUMBER; | |
2635 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
2636 | return rc; | |
2637 | } | |
2d304217 | 2638 | |
027e8eec PS |
2639 | static bool |
2640 | smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2) | |
2641 | { | |
2642 | return ob1->fid.persistent_fid == ob2->fid.persistent_fid && | |
2643 | ob1->fid.volatile_fid == ob2->fid.volatile_fid; | |
2644 | } | |
2645 | ||
f7ba7fe6 PS |
2646 | static int |
2647 | smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, | |
2648 | __u64 length, __u32 type, int lock, int unlock, bool wait) | |
2649 | { | |
2650 | if (unlock && !lock) | |
2651 | type = SMB2_LOCKFLAG_UNLOCK; | |
2652 | return SMB2_lock(xid, tlink_tcon(cfile->tlink), | |
2653 | cfile->fid.persistent_fid, cfile->fid.volatile_fid, | |
2654 | current->tgid, length, offset, type, wait); | |
2655 | } | |
2656 | ||
b8c32dbb PS |
2657 | static void |
2658 | smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid) | |
2659 | { | |
2660 | memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE); | |
2661 | } | |
2662 | ||
2663 | static void | |
2664 | smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid) | |
2665 | { | |
2666 | memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE); | |
2667 | } | |
2668 | ||
2669 | static void | |
2670 | smb2_new_lease_key(struct cifs_fid *fid) | |
2671 | { | |
fa70b87c | 2672 | generate_random_uuid(fid->lease_key); |
b8c32dbb PS |
2673 | } |
2674 | ||
9d49640a AA |
2675 | static int |
2676 | smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, | |
2677 | const char *search_name, | |
2678 | struct dfs_info3_param **target_nodes, | |
2679 | unsigned int *num_of_nodes, | |
2680 | const struct nls_table *nls_codepage, int remap) | |
2681 | { | |
2682 | int rc; | |
2683 | __le16 *utf16_path = NULL; | |
2684 | int utf16_path_len = 0; | |
2685 | struct cifs_tcon *tcon; | |
2686 | struct fsctl_get_dfs_referral_req *dfs_req = NULL; | |
2687 | struct get_dfs_referral_rsp *dfs_rsp = NULL; | |
2688 | u32 dfs_req_size = 0, dfs_rsp_size = 0; | |
2689 | ||
a205d500 | 2690 | cifs_dbg(FYI, "%s: path: %s\n", __func__, search_name); |
9d49640a AA |
2691 | |
2692 | /* | |
63a83b86 | 2693 | * Try to use the IPC tcon, otherwise just use any |
9d49640a | 2694 | */ |
63a83b86 AA |
2695 | tcon = ses->tcon_ipc; |
2696 | if (tcon == NULL) { | |
2697 | spin_lock(&cifs_tcp_ses_lock); | |
2698 | tcon = list_first_entry_or_null(&ses->tcon_list, | |
2699 | struct cifs_tcon, | |
2700 | tcon_list); | |
2701 | if (tcon) | |
2702 | tcon->tc_count++; | |
2703 | spin_unlock(&cifs_tcp_ses_lock); | |
2704 | } | |
2705 | ||
2706 | if (tcon == NULL) { | |
9d49640a AA |
2707 | cifs_dbg(VFS, "session %p has no tcon available for a dfs referral request\n", |
2708 | ses); | |
2709 | rc = -ENOTCONN; | |
2710 | goto out; | |
2711 | } | |
2712 | ||
2713 | utf16_path = cifs_strndup_to_utf16(search_name, PATH_MAX, | |
2714 | &utf16_path_len, | |
2715 | nls_codepage, remap); | |
2716 | if (!utf16_path) { | |
2717 | rc = -ENOMEM; | |
2718 | goto out; | |
2719 | } | |
2720 | ||
2721 | dfs_req_size = sizeof(*dfs_req) + utf16_path_len; | |
2722 | dfs_req = kzalloc(dfs_req_size, GFP_KERNEL); | |
2723 | if (!dfs_req) { | |
2724 | rc = -ENOMEM; | |
2725 | goto out; | |
2726 | } | |
2727 | ||
2728 | /* Highest DFS referral version understood */ | |
2729 | dfs_req->MaxReferralLevel = DFS_VERSION; | |
2730 | ||
2731 | /* Path to resolve in an UTF-16 null-terminated string */ | |
2732 | memcpy(dfs_req->RequestFileName, utf16_path, utf16_path_len); | |
2733 | ||
2734 | do { | |
9d49640a AA |
2735 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, |
2736 | FSCTL_DFS_GET_REFERRALS, | |
63a83b86 | 2737 | true /* is_fsctl */, |
153322f7 | 2738 | (char *)dfs_req, dfs_req_size, CIFSMaxBufSize, |
9d49640a | 2739 | (char **)&dfs_rsp, &dfs_rsp_size); |
9d49640a AA |
2740 | } while (rc == -EAGAIN); |
2741 | ||
2742 | if (rc) { | |
2564f2ff | 2743 | if ((rc != -ENOENT) && (rc != -EOPNOTSUPP)) |
3175eb9b | 2744 | cifs_tcon_dbg(VFS, "ioctl error in %s rc=%d\n", __func__, rc); |
9d49640a AA |
2745 | goto out; |
2746 | } | |
2747 | ||
2748 | rc = parse_dfs_referrals(dfs_rsp, dfs_rsp_size, | |
2749 | num_of_nodes, target_nodes, | |
2750 | nls_codepage, remap, search_name, | |
2751 | true /* is_unicode */); | |
2752 | if (rc) { | |
3175eb9b | 2753 | cifs_tcon_dbg(VFS, "parse error in %s rc=%d\n", __func__, rc); |
9d49640a AA |
2754 | goto out; |
2755 | } | |
2756 | ||
2757 | out: | |
63a83b86 AA |
2758 | if (tcon && !tcon->ipc) { |
2759 | /* ipc tcons are not refcounted */ | |
9d49640a AA |
2760 | spin_lock(&cifs_tcp_ses_lock); |
2761 | tcon->tc_count--; | |
2762 | spin_unlock(&cifs_tcp_ses_lock); | |
2763 | } | |
2764 | kfree(utf16_path); | |
2765 | kfree(dfs_req); | |
2766 | kfree(dfs_rsp); | |
2767 | return rc; | |
2768 | } | |
5de254dc | 2769 | |
d5ecebc4 SF |
2770 | static int |
2771 | parse_reparse_posix(struct reparse_posix_data *symlink_buf, | |
2772 | u32 plen, char **target_path, | |
2773 | struct cifs_sb_info *cifs_sb) | |
2774 | { | |
2775 | unsigned int len; | |
2776 | ||
2777 | /* See MS-FSCC 2.1.2.6 for the 'NFS' style reparse tags */ | |
2778 | len = le16_to_cpu(symlink_buf->ReparseDataLength); | |
2779 | ||
d5ecebc4 SF |
2780 | if (le64_to_cpu(symlink_buf->InodeType) != NFS_SPECFILE_LNK) { |
2781 | cifs_dbg(VFS, "%lld not a supported symlink type\n", | |
2782 | le64_to_cpu(symlink_buf->InodeType)); | |
2783 | return -EOPNOTSUPP; | |
2784 | } | |
2785 | ||
2786 | *target_path = cifs_strndup_from_utf16( | |
2787 | symlink_buf->PathBuffer, | |
2788 | len, true, cifs_sb->local_nls); | |
2789 | if (!(*target_path)) | |
2790 | return -ENOMEM; | |
2791 | ||
2792 | convert_delimiter(*target_path, '/'); | |
2793 | cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); | |
2794 | ||
2795 | return 0; | |
2796 | } | |
2797 | ||
5de254dc RS |
2798 | static int |
2799 | parse_reparse_symlink(struct reparse_symlink_data_buffer *symlink_buf, | |
2800 | u32 plen, char **target_path, | |
2801 | struct cifs_sb_info *cifs_sb) | |
2802 | { | |
2803 | unsigned int sub_len; | |
2804 | unsigned int sub_offset; | |
2805 | ||
d5ecebc4 | 2806 | /* We handle Symbolic Link reparse tag here. See: MS-FSCC 2.1.2.4 */ |
5de254dc RS |
2807 | |
2808 | sub_offset = le16_to_cpu(symlink_buf->SubstituteNameOffset); | |
2809 | sub_len = le16_to_cpu(symlink_buf->SubstituteNameLength); | |
2810 | if (sub_offset + 20 > plen || | |
2811 | sub_offset + sub_len + 20 > plen) { | |
2812 | cifs_dbg(VFS, "srv returned malformed symlink buffer\n"); | |
2813 | return -EIO; | |
2814 | } | |
2815 | ||
2816 | *target_path = cifs_strndup_from_utf16( | |
2817 | symlink_buf->PathBuffer + sub_offset, | |
2818 | sub_len, true, cifs_sb->local_nls); | |
2819 | if (!(*target_path)) | |
2820 | return -ENOMEM; | |
2821 | ||
2822 | convert_delimiter(*target_path, '/'); | |
2823 | cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); | |
2824 | ||
2825 | return 0; | |
2826 | } | |
2827 | ||
d5ecebc4 | 2828 | static int |
f5f111c2 RS |
2829 | parse_reparse_point(struct reparse_data_buffer *buf, |
2830 | u32 plen, char **target_path, | |
2831 | struct cifs_sb_info *cifs_sb) | |
d5ecebc4 | 2832 | { |
f5f111c2 | 2833 | if (plen < sizeof(struct reparse_data_buffer)) { |
a0a3036b JP |
2834 | cifs_dbg(VFS, "reparse buffer is too small. Must be at least 8 bytes but was %d\n", |
2835 | plen); | |
f5f111c2 RS |
2836 | return -EIO; |
2837 | } | |
d5ecebc4 | 2838 | |
f5f111c2 RS |
2839 | if (plen < le16_to_cpu(buf->ReparseDataLength) + |
2840 | sizeof(struct reparse_data_buffer)) { | |
a0a3036b JP |
2841 | cifs_dbg(VFS, "srv returned invalid reparse buf length: %d\n", |
2842 | plen); | |
f5f111c2 RS |
2843 | return -EIO; |
2844 | } | |
d5ecebc4 | 2845 | |
f5f111c2 RS |
2846 | /* See MS-FSCC 2.1.2 */ |
2847 | switch (le32_to_cpu(buf->ReparseTag)) { | |
2848 | case IO_REPARSE_TAG_NFS: | |
2849 | return parse_reparse_posix( | |
2850 | (struct reparse_posix_data *)buf, | |
2851 | plen, target_path, cifs_sb); | |
2852 | case IO_REPARSE_TAG_SYMLINK: | |
2853 | return parse_reparse_symlink( | |
2854 | (struct reparse_symlink_data_buffer *)buf, | |
2855 | plen, target_path, cifs_sb); | |
2856 | default: | |
a0a3036b JP |
2857 | cifs_dbg(VFS, "srv returned unknown symlink buffer tag:0x%08x\n", |
2858 | le32_to_cpu(buf->ReparseTag)); | |
f5f111c2 RS |
2859 | return -EOPNOTSUPP; |
2860 | } | |
d5ecebc4 SF |
2861 | } |
2862 | ||
7893242e PS |
2863 | #define SMB2_SYMLINK_STRUCT_SIZE \ |
2864 | (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp)) | |
2865 | ||
b42bf888 PS |
2866 | static int |
2867 | smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, | |
ebaf546a RS |
2868 | struct cifs_sb_info *cifs_sb, const char *full_path, |
2869 | char **target_path, bool is_reparse_point) | |
b42bf888 PS |
2870 | { |
2871 | int rc; | |
ebaf546a | 2872 | __le16 *utf16_path = NULL; |
b42bf888 PS |
2873 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
2874 | struct cifs_open_parms oparms; | |
2875 | struct cifs_fid fid; | |
91cb74f5 | 2876 | struct kvec err_iov = {NULL, 0}; |
9d874c36 | 2877 | struct smb2_err_rsp *err_buf = NULL; |
b42bf888 | 2878 | struct smb2_symlink_err_rsp *symlink; |
352d96f3 | 2879 | struct TCP_Server_Info *server = cifs_pick_channel(tcon->ses); |
7893242e PS |
2880 | unsigned int sub_len; |
2881 | unsigned int sub_offset; | |
2882 | unsigned int print_len; | |
2883 | unsigned int print_offset; | |
ebaf546a RS |
2884 | int flags = 0; |
2885 | struct smb_rqst rqst[3]; | |
2886 | int resp_buftype[3]; | |
2887 | struct kvec rsp_iov[3]; | |
2888 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
2889 | struct kvec io_iov[SMB2_IOCTL_IOV_SIZE]; | |
2890 | struct kvec close_iov[1]; | |
2891 | struct smb2_create_rsp *create_rsp; | |
2892 | struct smb2_ioctl_rsp *ioctl_rsp; | |
5de254dc | 2893 | struct reparse_data_buffer *reparse_buf; |
0f060936 | 2894 | int create_options = is_reparse_point ? OPEN_REPARSE_POINT : 0; |
ebaf546a | 2895 | u32 plen; |
b42bf888 PS |
2896 | |
2897 | cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); | |
2898 | ||
5de254dc RS |
2899 | *target_path = NULL; |
2900 | ||
ebaf546a RS |
2901 | if (smb3_encryption_required(tcon)) |
2902 | flags |= CIFS_TRANSFORM_REQ; | |
2903 | ||
2904 | memset(rqst, 0, sizeof(rqst)); | |
2905 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; | |
2906 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
2907 | ||
b42bf888 PS |
2908 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); |
2909 | if (!utf16_path) | |
2910 | return -ENOMEM; | |
2911 | ||
ebaf546a RS |
2912 | /* Open */ |
2913 | memset(&open_iov, 0, sizeof(open_iov)); | |
2914 | rqst[0].rq_iov = open_iov; | |
2915 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
2916 | ||
2917 | memset(&oparms, 0, sizeof(oparms)); | |
b42bf888 PS |
2918 | oparms.tcon = tcon; |
2919 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
2920 | oparms.disposition = FILE_OPEN; | |
0f060936 | 2921 | oparms.create_options = cifs_create_options(cifs_sb, create_options); |
b42bf888 PS |
2922 | oparms.fid = &fid; |
2923 | oparms.reconnect = false; | |
2924 | ||
352d96f3 AA |
2925 | rc = SMB2_open_init(tcon, server, |
2926 | &rqst[0], &oplock, &oparms, utf16_path); | |
ebaf546a RS |
2927 | if (rc) |
2928 | goto querty_exit; | |
2929 | smb2_set_next_command(tcon, &rqst[0]); | |
2930 | ||
2931 | ||
2932 | /* IOCTL */ | |
2933 | memset(&io_iov, 0, sizeof(io_iov)); | |
2934 | rqst[1].rq_iov = io_iov; | |
2935 | rqst[1].rq_nvec = SMB2_IOCTL_IOV_SIZE; | |
2936 | ||
352d96f3 AA |
2937 | rc = SMB2_ioctl_init(tcon, server, |
2938 | &rqst[1], fid.persistent_fid, | |
ebaf546a | 2939 | fid.volatile_fid, FSCTL_GET_REPARSE_POINT, |
731b82bb RS |
2940 | true /* is_fctl */, NULL, 0, |
2941 | CIFSMaxBufSize - | |
2942 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
2943 | MAX_SMB2_CLOSE_RESPONSE_SIZE); | |
ebaf546a RS |
2944 | if (rc) |
2945 | goto querty_exit; | |
2946 | ||
2947 | smb2_set_next_command(tcon, &rqst[1]); | |
2948 | smb2_set_related(&rqst[1]); | |
2949 | ||
2950 | ||
2951 | /* Close */ | |
2952 | memset(&close_iov, 0, sizeof(close_iov)); | |
2953 | rqst[2].rq_iov = close_iov; | |
2954 | rqst[2].rq_nvec = 1; | |
2955 | ||
352d96f3 AA |
2956 | rc = SMB2_close_init(tcon, server, |
2957 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
ebaf546a RS |
2958 | if (rc) |
2959 | goto querty_exit; | |
2960 | ||
2961 | smb2_set_related(&rqst[2]); | |
2962 | ||
352d96f3 AA |
2963 | rc = compound_send_recv(xid, tcon->ses, server, |
2964 | flags, 3, rqst, | |
ebaf546a RS |
2965 | resp_buftype, rsp_iov); |
2966 | ||
2967 | create_rsp = rsp_iov[0].iov_base; | |
2968 | if (create_rsp && create_rsp->sync_hdr.Status) | |
2969 | err_iov = rsp_iov[0]; | |
2970 | ioctl_rsp = rsp_iov[1].iov_base; | |
2971 | ||
2972 | /* | |
2973 | * Open was successful and we got an ioctl response. | |
2974 | */ | |
2975 | if ((rc == 0) && (is_reparse_point)) { | |
2976 | /* See MS-FSCC 2.3.23 */ | |
2977 | ||
5de254dc RS |
2978 | reparse_buf = (struct reparse_data_buffer *) |
2979 | ((char *)ioctl_rsp + | |
2980 | le32_to_cpu(ioctl_rsp->OutputOffset)); | |
ebaf546a RS |
2981 | plen = le32_to_cpu(ioctl_rsp->OutputCount); |
2982 | ||
2983 | if (plen + le32_to_cpu(ioctl_rsp->OutputOffset) > | |
2984 | rsp_iov[1].iov_len) { | |
3175eb9b | 2985 | cifs_tcon_dbg(VFS, "srv returned invalid ioctl len: %d\n", |
5de254dc RS |
2986 | plen); |
2987 | rc = -EIO; | |
2988 | goto querty_exit; | |
2989 | } | |
2990 | ||
f5f111c2 RS |
2991 | rc = parse_reparse_point(reparse_buf, plen, target_path, |
2992 | cifs_sb); | |
ebaf546a RS |
2993 | goto querty_exit; |
2994 | } | |
2995 | ||
0d568cd3 | 2996 | if (!rc || !err_iov.iov_base) { |
9d874c36 | 2997 | rc = -ENOENT; |
ebaf546a | 2998 | goto querty_exit; |
b42bf888 | 2999 | } |
7893242e | 3000 | |
91cb74f5 | 3001 | err_buf = err_iov.iov_base; |
7893242e | 3002 | if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) || |
1fc6ad2f | 3003 | err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE) { |
df070afd RS |
3004 | rc = -EINVAL; |
3005 | goto querty_exit; | |
3006 | } | |
3007 | ||
3008 | symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData; | |
3009 | if (le32_to_cpu(symlink->SymLinkErrorTag) != SYMLINK_ERROR_TAG || | |
3010 | le32_to_cpu(symlink->ReparseTag) != IO_REPARSE_TAG_SYMLINK) { | |
3011 | rc = -EINVAL; | |
9d874c36 | 3012 | goto querty_exit; |
7893242e PS |
3013 | } |
3014 | ||
b42bf888 PS |
3015 | /* open must fail on symlink - reset rc */ |
3016 | rc = 0; | |
b42bf888 PS |
3017 | sub_len = le16_to_cpu(symlink->SubstituteNameLength); |
3018 | sub_offset = le16_to_cpu(symlink->SubstituteNameOffset); | |
7893242e PS |
3019 | print_len = le16_to_cpu(symlink->PrintNameLength); |
3020 | print_offset = le16_to_cpu(symlink->PrintNameOffset); | |
3021 | ||
1fc6ad2f | 3022 | if (err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) { |
df070afd | 3023 | rc = -EINVAL; |
9d874c36 | 3024 | goto querty_exit; |
7893242e PS |
3025 | } |
3026 | ||
1fc6ad2f RS |
3027 | if (err_iov.iov_len < |
3028 | SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) { | |
df070afd | 3029 | rc = -EINVAL; |
9d874c36 | 3030 | goto querty_exit; |
7893242e PS |
3031 | } |
3032 | ||
b42bf888 PS |
3033 | *target_path = cifs_strndup_from_utf16( |
3034 | (char *)symlink->PathBuffer + sub_offset, | |
3035 | sub_len, true, cifs_sb->local_nls); | |
3036 | if (!(*target_path)) { | |
9d874c36 RS |
3037 | rc = -ENOMEM; |
3038 | goto querty_exit; | |
b42bf888 PS |
3039 | } |
3040 | convert_delimiter(*target_path, '/'); | |
3041 | cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); | |
9d874c36 RS |
3042 | |
3043 | querty_exit: | |
ebaf546a | 3044 | cifs_dbg(FYI, "query symlink rc %d\n", rc); |
b42bf888 | 3045 | kfree(utf16_path); |
ebaf546a RS |
3046 | SMB2_open_free(&rqst[0]); |
3047 | SMB2_ioctl_free(&rqst[1]); | |
3048 | SMB2_close_free(&rqst[2]); | |
3049 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
3050 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
3051 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
b42bf888 PS |
3052 | return rc; |
3053 | } | |
3054 | ||
2e4564b3 SF |
3055 | int |
3056 | smb2_query_reparse_tag(const unsigned int xid, struct cifs_tcon *tcon, | |
3057 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
3058 | __u32 *tag) | |
3059 | { | |
3060 | int rc; | |
3061 | __le16 *utf16_path = NULL; | |
3062 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
3063 | struct cifs_open_parms oparms; | |
3064 | struct cifs_fid fid; | |
2e4564b3 SF |
3065 | struct TCP_Server_Info *server = cifs_pick_channel(tcon->ses); |
3066 | int flags = 0; | |
3067 | struct smb_rqst rqst[3]; | |
3068 | int resp_buftype[3]; | |
3069 | struct kvec rsp_iov[3]; | |
3070 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
3071 | struct kvec io_iov[SMB2_IOCTL_IOV_SIZE]; | |
3072 | struct kvec close_iov[1]; | |
2e4564b3 SF |
3073 | struct smb2_ioctl_rsp *ioctl_rsp; |
3074 | struct reparse_data_buffer *reparse_buf; | |
3075 | u32 plen; | |
3076 | ||
3077 | cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); | |
3078 | ||
3079 | if (smb3_encryption_required(tcon)) | |
3080 | flags |= CIFS_TRANSFORM_REQ; | |
3081 | ||
3082 | memset(rqst, 0, sizeof(rqst)); | |
3083 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; | |
3084 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
3085 | ||
3086 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
3087 | if (!utf16_path) | |
3088 | return -ENOMEM; | |
3089 | ||
3090 | /* | |
3091 | * setup smb2open - TODO add optimization to call cifs_get_readable_path | |
3092 | * to see if there is a handle already open that we can use | |
3093 | */ | |
3094 | memset(&open_iov, 0, sizeof(open_iov)); | |
3095 | rqst[0].rq_iov = open_iov; | |
3096 | rqst[0].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
3097 | ||
3098 | memset(&oparms, 0, sizeof(oparms)); | |
3099 | oparms.tcon = tcon; | |
3100 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
3101 | oparms.disposition = FILE_OPEN; | |
3102 | oparms.create_options = cifs_create_options(cifs_sb, OPEN_REPARSE_POINT); | |
3103 | oparms.fid = &fid; | |
3104 | oparms.reconnect = false; | |
3105 | ||
3106 | rc = SMB2_open_init(tcon, server, | |
3107 | &rqst[0], &oplock, &oparms, utf16_path); | |
3108 | if (rc) | |
3109 | goto query_rp_exit; | |
3110 | smb2_set_next_command(tcon, &rqst[0]); | |
3111 | ||
3112 | ||
3113 | /* IOCTL */ | |
3114 | memset(&io_iov, 0, sizeof(io_iov)); | |
3115 | rqst[1].rq_iov = io_iov; | |
3116 | rqst[1].rq_nvec = SMB2_IOCTL_IOV_SIZE; | |
3117 | ||
3118 | rc = SMB2_ioctl_init(tcon, server, | |
79631784 NJ |
3119 | &rqst[1], COMPOUND_FID, |
3120 | COMPOUND_FID, FSCTL_GET_REPARSE_POINT, | |
2e4564b3 SF |
3121 | true /* is_fctl */, NULL, 0, |
3122 | CIFSMaxBufSize - | |
3123 | MAX_SMB2_CREATE_RESPONSE_SIZE - | |
3124 | MAX_SMB2_CLOSE_RESPONSE_SIZE); | |
3125 | if (rc) | |
3126 | goto query_rp_exit; | |
3127 | ||
3128 | smb2_set_next_command(tcon, &rqst[1]); | |
3129 | smb2_set_related(&rqst[1]); | |
3130 | ||
3131 | ||
3132 | /* Close */ | |
3133 | memset(&close_iov, 0, sizeof(close_iov)); | |
3134 | rqst[2].rq_iov = close_iov; | |
3135 | rqst[2].rq_nvec = 1; | |
3136 | ||
3137 | rc = SMB2_close_init(tcon, server, | |
3138 | &rqst[2], COMPOUND_FID, COMPOUND_FID, false); | |
3139 | if (rc) | |
3140 | goto query_rp_exit; | |
3141 | ||
3142 | smb2_set_related(&rqst[2]); | |
3143 | ||
3144 | rc = compound_send_recv(xid, tcon->ses, server, | |
3145 | flags, 3, rqst, | |
3146 | resp_buftype, rsp_iov); | |
3147 | ||
2e4564b3 SF |
3148 | ioctl_rsp = rsp_iov[1].iov_base; |
3149 | ||
3150 | /* | |
3151 | * Open was successful and we got an ioctl response. | |
3152 | */ | |
3153 | if (rc == 0) { | |
3154 | /* See MS-FSCC 2.3.23 */ | |
3155 | ||
3156 | reparse_buf = (struct reparse_data_buffer *) | |
3157 | ((char *)ioctl_rsp + | |
3158 | le32_to_cpu(ioctl_rsp->OutputOffset)); | |
3159 | plen = le32_to_cpu(ioctl_rsp->OutputCount); | |
3160 | ||
3161 | if (plen + le32_to_cpu(ioctl_rsp->OutputOffset) > | |
3162 | rsp_iov[1].iov_len) { | |
3163 | cifs_tcon_dbg(FYI, "srv returned invalid ioctl len: %d\n", | |
3164 | plen); | |
3165 | rc = -EIO; | |
3166 | goto query_rp_exit; | |
3167 | } | |
3168 | *tag = le32_to_cpu(reparse_buf->ReparseTag); | |
3169 | } | |
3170 | ||
3171 | query_rp_exit: | |
3172 | kfree(utf16_path); | |
3173 | SMB2_open_free(&rqst[0]); | |
3174 | SMB2_ioctl_free(&rqst[1]); | |
3175 | SMB2_close_free(&rqst[2]); | |
3176 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
3177 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
3178 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
3179 | return rc; | |
3180 | } | |
3181 | ||
2f1afe25 SP |
3182 | static struct cifs_ntsd * |
3183 | get_smb2_acl_by_fid(struct cifs_sb_info *cifs_sb, | |
3184 | const struct cifs_fid *cifsfid, u32 *pacllen) | |
3185 | { | |
3186 | struct cifs_ntsd *pntsd = NULL; | |
3187 | unsigned int xid; | |
3188 | int rc = -EOPNOTSUPP; | |
3189 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
3190 | ||
3191 | if (IS_ERR(tlink)) | |
3192 | return ERR_CAST(tlink); | |
3193 | ||
3194 | xid = get_xid(); | |
3195 | cifs_dbg(FYI, "trying to get acl\n"); | |
3196 | ||
3197 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), cifsfid->persistent_fid, | |
3198 | cifsfid->volatile_fid, (void **)&pntsd, pacllen); | |
3199 | free_xid(xid); | |
3200 | ||
3201 | cifs_put_tlink(tlink); | |
3202 | ||
3203 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
3204 | if (rc) | |
3205 | return ERR_PTR(rc); | |
3206 | return pntsd; | |
3207 | ||
3208 | } | |
3209 | ||
3210 | static struct cifs_ntsd * | |
3211 | get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb, | |
3212 | const char *path, u32 *pacllen) | |
3213 | { | |
3214 | struct cifs_ntsd *pntsd = NULL; | |
3215 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
3216 | unsigned int xid; | |
3217 | int rc; | |
3218 | struct cifs_tcon *tcon; | |
3219 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
3220 | struct cifs_fid fid; | |
3221 | struct cifs_open_parms oparms; | |
3222 | __le16 *utf16_path; | |
3223 | ||
3224 | cifs_dbg(FYI, "get smb3 acl for path %s\n", path); | |
3225 | if (IS_ERR(tlink)) | |
3226 | return ERR_CAST(tlink); | |
3227 | ||
3228 | tcon = tlink_tcon(tlink); | |
3229 | xid = get_xid(); | |
3230 | ||
2f1afe25 | 3231 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); |
cfe89091 SF |
3232 | if (!utf16_path) { |
3233 | rc = -ENOMEM; | |
3234 | free_xid(xid); | |
3235 | return ERR_PTR(rc); | |
3236 | } | |
2f1afe25 SP |
3237 | |
3238 | oparms.tcon = tcon; | |
3239 | oparms.desired_access = READ_CONTROL; | |
3240 | oparms.disposition = FILE_OPEN; | |
3c3317da SF |
3241 | /* |
3242 | * When querying an ACL, even if the file is a symlink we want to open | |
3243 | * the source not the target, and so the protocol requires that the | |
3244 | * client specify this flag when opening a reparse point | |
3245 | */ | |
3246 | oparms.create_options = cifs_create_options(cifs_sb, 0) | OPEN_REPARSE_POINT; | |
2f1afe25 SP |
3247 | oparms.fid = &fid; |
3248 | oparms.reconnect = false; | |
3249 | ||
69dda305 AA |
3250 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL, |
3251 | NULL); | |
2f1afe25 SP |
3252 | kfree(utf16_path); |
3253 | if (!rc) { | |
3254 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
3255 | fid.volatile_fid, (void **)&pntsd, pacllen); | |
3256 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
3257 | } | |
3258 | ||
3259 | cifs_put_tlink(tlink); | |
3260 | free_xid(xid); | |
3261 | ||
3262 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
3263 | if (rc) | |
3264 | return ERR_PTR(rc); | |
3265 | return pntsd; | |
3266 | } | |
3267 | ||
366ed846 SP |
3268 | static int |
3269 | set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen, | |
3270 | struct inode *inode, const char *path, int aclflag) | |
3271 | { | |
3272 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
3273 | unsigned int xid; | |
3274 | int rc, access_flags = 0; | |
3275 | struct cifs_tcon *tcon; | |
3276 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
3277 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
3278 | struct cifs_fid fid; | |
3279 | struct cifs_open_parms oparms; | |
3280 | __le16 *utf16_path; | |
3281 | ||
3282 | cifs_dbg(FYI, "set smb3 acl for path %s\n", path); | |
3283 | if (IS_ERR(tlink)) | |
3284 | return PTR_ERR(tlink); | |
3285 | ||
3286 | tcon = tlink_tcon(tlink); | |
3287 | xid = get_xid(); | |
3288 | ||
366ed846 SP |
3289 | if (aclflag == CIFS_ACL_OWNER || aclflag == CIFS_ACL_GROUP) |
3290 | access_flags = WRITE_OWNER; | |
3291 | else | |
3292 | access_flags = WRITE_DAC; | |
3293 | ||
3294 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
cfe89091 SF |
3295 | if (!utf16_path) { |
3296 | rc = -ENOMEM; | |
3297 | free_xid(xid); | |
3298 | return rc; | |
3299 | } | |
366ed846 SP |
3300 | |
3301 | oparms.tcon = tcon; | |
3302 | oparms.desired_access = access_flags; | |
0f060936 | 3303 | oparms.create_options = cifs_create_options(cifs_sb, 0); |
366ed846 SP |
3304 | oparms.disposition = FILE_OPEN; |
3305 | oparms.path = path; | |
3306 | oparms.fid = &fid; | |
3307 | oparms.reconnect = false; | |
3308 | ||
69dda305 AA |
3309 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, |
3310 | NULL, NULL); | |
366ed846 SP |
3311 | kfree(utf16_path); |
3312 | if (!rc) { | |
3313 | rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
3314 | fid.volatile_fid, pnntsd, acllen, aclflag); | |
3315 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
3316 | } | |
3317 | ||
3318 | cifs_put_tlink(tlink); | |
3319 | free_xid(xid); | |
3320 | return rc; | |
3321 | } | |
366ed846 | 3322 | |
2f1afe25 SP |
3323 | /* Retrieve an ACL from the server */ |
3324 | static struct cifs_ntsd * | |
3325 | get_smb2_acl(struct cifs_sb_info *cifs_sb, | |
3326 | struct inode *inode, const char *path, | |
3327 | u32 *pacllen) | |
3328 | { | |
3329 | struct cifs_ntsd *pntsd = NULL; | |
3330 | struct cifsFileInfo *open_file = NULL; | |
3331 | ||
3332 | if (inode) | |
3333 | open_file = find_readable_file(CIFS_I(inode), true); | |
3334 | if (!open_file) | |
3335 | return get_smb2_acl_by_path(cifs_sb, path, pacllen); | |
3336 | ||
3337 | pntsd = get_smb2_acl_by_fid(cifs_sb, &open_file->fid, pacllen); | |
3338 | cifsFileInfo_put(open_file); | |
3339 | return pntsd; | |
3340 | } | |
2f1afe25 | 3341 | |
30175628 SF |
3342 | static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon, |
3343 | loff_t offset, loff_t len, bool keep_size) | |
3344 | { | |
72c419d9 | 3345 | struct cifs_ses *ses = tcon->ses; |
30175628 SF |
3346 | struct inode *inode; |
3347 | struct cifsInodeInfo *cifsi; | |
3348 | struct cifsFileInfo *cfile = file->private_data; | |
3349 | struct file_zero_data_information fsctl_buf; | |
3350 | long rc; | |
3351 | unsigned int xid; | |
72c419d9 | 3352 | __le64 eof; |
30175628 SF |
3353 | |
3354 | xid = get_xid(); | |
3355 | ||
2b0143b5 | 3356 | inode = d_inode(cfile->dentry); |
30175628 SF |
3357 | cifsi = CIFS_I(inode); |
3358 | ||
a205d500 | 3359 | trace_smb3_zero_enter(xid, cfile->fid.persistent_fid, tcon->tid, |
779ede04 SF |
3360 | ses->Suid, offset, len); |
3361 | ||
6b690402 ZX |
3362 | /* |
3363 | * We zero the range through ioctl, so we need remove the page caches | |
3364 | * first, otherwise the data may be inconsistent with the server. | |
3365 | */ | |
3366 | truncate_pagecache_range(inode, offset, offset + len - 1); | |
779ede04 | 3367 | |
30175628 SF |
3368 | /* if file not oplocked can't be sure whether asking to extend size */ |
3369 | if (!CIFS_CACHE_READ(cifsi)) | |
cfe89091 SF |
3370 | if (keep_size == false) { |
3371 | rc = -EOPNOTSUPP; | |
779ede04 SF |
3372 | trace_smb3_zero_err(xid, cfile->fid.persistent_fid, |
3373 | tcon->tid, ses->Suid, offset, len, rc); | |
cfe89091 SF |
3374 | free_xid(xid); |
3375 | return rc; | |
3376 | } | |
30175628 | 3377 | |
d1c35afb | 3378 | cifs_dbg(FYI, "Offset %lld len %lld\n", offset, len); |
30175628 SF |
3379 | |
3380 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
3381 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
3382 | ||
c425014a RS |
3383 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, |
3384 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, true, | |
3385 | (char *)&fsctl_buf, | |
3386 | sizeof(struct file_zero_data_information), | |
3387 | 0, NULL, NULL); | |
72c419d9 RS |
3388 | if (rc) |
3389 | goto zero_range_exit; | |
3390 | ||
3391 | /* | |
3392 | * do we also need to change the size of the file? | |
3393 | */ | |
3394 | if (keep_size == false && i_size_read(inode) < offset + len) { | |
72c419d9 | 3395 | eof = cpu_to_le64(offset + len); |
c425014a RS |
3396 | rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
3397 | cfile->fid.volatile_fid, cfile->pid, &eof); | |
72c419d9 RS |
3398 | } |
3399 | ||
72c419d9 | 3400 | zero_range_exit: |
30175628 | 3401 | free_xid(xid); |
779ede04 SF |
3402 | if (rc) |
3403 | trace_smb3_zero_err(xid, cfile->fid.persistent_fid, tcon->tid, | |
3404 | ses->Suid, offset, len, rc); | |
3405 | else | |
3406 | trace_smb3_zero_done(xid, cfile->fid.persistent_fid, tcon->tid, | |
3407 | ses->Suid, offset, len); | |
30175628 SF |
3408 | return rc; |
3409 | } | |
3410 | ||
31742c5a SF |
3411 | static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon, |
3412 | loff_t offset, loff_t len) | |
3413 | { | |
3414 | struct inode *inode; | |
31742c5a SF |
3415 | struct cifsFileInfo *cfile = file->private_data; |
3416 | struct file_zero_data_information fsctl_buf; | |
3417 | long rc; | |
3418 | unsigned int xid; | |
3419 | __u8 set_sparse = 1; | |
3420 | ||
3421 | xid = get_xid(); | |
3422 | ||
2b0143b5 | 3423 | inode = d_inode(cfile->dentry); |
31742c5a SF |
3424 | |
3425 | /* Need to make file sparse, if not already, before freeing range. */ | |
3426 | /* Consider adding equivalent for compressed since it could also work */ | |
cfe89091 SF |
3427 | if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse)) { |
3428 | rc = -EOPNOTSUPP; | |
3429 | free_xid(xid); | |
3430 | return rc; | |
3431 | } | |
31742c5a | 3432 | |
acc91c2d ZX |
3433 | /* |
3434 | * We implement the punch hole through ioctl, so we need remove the page | |
3435 | * caches first, otherwise the data may be inconsistent with the server. | |
3436 | */ | |
3437 | truncate_pagecache_range(inode, offset, offset + len - 1); | |
3438 | ||
a205d500 | 3439 | cifs_dbg(FYI, "Offset %lld len %lld\n", offset, len); |
31742c5a SF |
3440 | |
3441 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
3442 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
3443 | ||
3444 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3445 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
63a83b86 | 3446 | true /* is_fctl */, (char *)&fsctl_buf, |
153322f7 SF |
3447 | sizeof(struct file_zero_data_information), |
3448 | CIFSMaxBufSize, NULL, NULL); | |
31742c5a SF |
3449 | free_xid(xid); |
3450 | return rc; | |
3451 | } | |
3452 | ||
9ccf3216 SF |
3453 | static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, |
3454 | loff_t off, loff_t len, bool keep_size) | |
3455 | { | |
3456 | struct inode *inode; | |
3457 | struct cifsInodeInfo *cifsi; | |
3458 | struct cifsFileInfo *cfile = file->private_data; | |
3459 | long rc = -EOPNOTSUPP; | |
3460 | unsigned int xid; | |
f1699479 | 3461 | __le64 eof; |
9ccf3216 SF |
3462 | |
3463 | xid = get_xid(); | |
3464 | ||
2b0143b5 | 3465 | inode = d_inode(cfile->dentry); |
9ccf3216 SF |
3466 | cifsi = CIFS_I(inode); |
3467 | ||
779ede04 SF |
3468 | trace_smb3_falloc_enter(xid, cfile->fid.persistent_fid, tcon->tid, |
3469 | tcon->ses->Suid, off, len); | |
9ccf3216 SF |
3470 | /* if file not oplocked can't be sure whether asking to extend size */ |
3471 | if (!CIFS_CACHE_READ(cifsi)) | |
cfe89091 | 3472 | if (keep_size == false) { |
779ede04 SF |
3473 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, |
3474 | tcon->tid, tcon->ses->Suid, off, len, rc); | |
cfe89091 SF |
3475 | free_xid(xid); |
3476 | return rc; | |
3477 | } | |
9ccf3216 | 3478 | |
8bd0d701 RS |
3479 | /* |
3480 | * Extending the file | |
3481 | */ | |
3482 | if ((keep_size == false) && i_size_read(inode) < off + len) { | |
ef4a632c MZ |
3483 | rc = inode_newsize_ok(inode, off + len); |
3484 | if (rc) | |
3485 | goto out; | |
3486 | ||
8bd0d701 RS |
3487 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) |
3488 | smb2_set_sparse(xid, tcon, cfile, inode, false); | |
3489 | ||
3490 | eof = cpu_to_le64(off + len); | |
3491 | rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, | |
3492 | cfile->fid.volatile_fid, cfile->pid, &eof); | |
3493 | if (rc == 0) { | |
3494 | cifsi->server_eof = off + len; | |
3495 | cifs_setsize(inode, off + len); | |
3496 | cifs_truncate_page(inode->i_mapping, inode->i_size); | |
3497 | truncate_setsize(inode, off + len); | |
3498 | } | |
3499 | goto out; | |
3500 | } | |
3501 | ||
9ccf3216 SF |
3502 | /* |
3503 | * Files are non-sparse by default so falloc may be a no-op | |
8bd0d701 RS |
3504 | * Must check if file sparse. If not sparse, and since we are not |
3505 | * extending then no need to do anything since file already allocated | |
9ccf3216 SF |
3506 | */ |
3507 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) { | |
8bd0d701 RS |
3508 | rc = 0; |
3509 | goto out; | |
9ccf3216 SF |
3510 | } |
3511 | ||
3512 | if ((keep_size == true) || (i_size_read(inode) >= off + len)) { | |
3513 | /* | |
3514 | * Check if falloc starts within first few pages of file | |
3515 | * and ends within a few pages of the end of file to | |
3516 | * ensure that most of file is being forced to be | |
3517 | * fallocated now. If so then setting whole file sparse | |
3518 | * ie potentially making a few extra pages at the beginning | |
3519 | * or end of the file non-sparse via set_sparse is harmless. | |
3520 | */ | |
cfe89091 SF |
3521 | if ((off > 8192) || (off + len + 8192 < i_size_read(inode))) { |
3522 | rc = -EOPNOTSUPP; | |
8bd0d701 | 3523 | goto out; |
f1699479 | 3524 | } |
9ccf3216 | 3525 | } |
9ccf3216 | 3526 | |
8bd0d701 RS |
3527 | smb2_set_sparse(xid, tcon, cfile, inode, false); |
3528 | rc = 0; | |
3529 | ||
3530 | out: | |
779ede04 SF |
3531 | if (rc) |
3532 | trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, tcon->tid, | |
3533 | tcon->ses->Suid, off, len, rc); | |
3534 | else | |
3535 | trace_smb3_falloc_done(xid, cfile->fid.persistent_fid, tcon->tid, | |
3536 | tcon->ses->Suid, off, len); | |
9ccf3216 SF |
3537 | |
3538 | free_xid(xid); | |
3539 | return rc; | |
3540 | } | |
3541 | ||
dece44e3 RS |
3542 | static loff_t smb3_llseek(struct file *file, struct cifs_tcon *tcon, loff_t offset, int whence) |
3543 | { | |
3544 | struct cifsFileInfo *wrcfile, *cfile = file->private_data; | |
3545 | struct cifsInodeInfo *cifsi; | |
3546 | struct inode *inode; | |
3547 | int rc = 0; | |
3548 | struct file_allocated_range_buffer in_data, *out_data = NULL; | |
3549 | u32 out_data_len; | |
3550 | unsigned int xid; | |
3551 | ||
3552 | if (whence != SEEK_HOLE && whence != SEEK_DATA) | |
3553 | return generic_file_llseek(file, offset, whence); | |
3554 | ||
3555 | inode = d_inode(cfile->dentry); | |
3556 | cifsi = CIFS_I(inode); | |
3557 | ||
3558 | if (offset < 0 || offset >= i_size_read(inode)) | |
3559 | return -ENXIO; | |
3560 | ||
3561 | xid = get_xid(); | |
3562 | /* | |
3563 | * We need to be sure that all dirty pages are written as they | |
3564 | * might fill holes on the server. | |
3565 | * Note that we also MUST flush any written pages since at least | |
3566 | * some servers (Windows2016) will not reflect recent writes in | |
3567 | * QUERY_ALLOCATED_RANGES until SMB2_flush is called. | |
3568 | */ | |
86f740f2 | 3569 | wrcfile = find_writable_file(cifsi, FIND_WR_ANY); |
dece44e3 RS |
3570 | if (wrcfile) { |
3571 | filemap_write_and_wait(inode->i_mapping); | |
3572 | smb2_flush_file(xid, tcon, &wrcfile->fid); | |
3573 | cifsFileInfo_put(wrcfile); | |
3574 | } | |
3575 | ||
3576 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) { | |
3577 | if (whence == SEEK_HOLE) | |
3578 | offset = i_size_read(inode); | |
3579 | goto lseek_exit; | |
3580 | } | |
3581 | ||
3582 | in_data.file_offset = cpu_to_le64(offset); | |
3583 | in_data.length = cpu_to_le64(i_size_read(inode)); | |
3584 | ||
3585 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3586 | cfile->fid.volatile_fid, | |
3587 | FSCTL_QUERY_ALLOCATED_RANGES, true, | |
3588 | (char *)&in_data, sizeof(in_data), | |
3589 | sizeof(struct file_allocated_range_buffer), | |
3590 | (char **)&out_data, &out_data_len); | |
3591 | if (rc == -E2BIG) | |
3592 | rc = 0; | |
3593 | if (rc) | |
3594 | goto lseek_exit; | |
3595 | ||
3596 | if (whence == SEEK_HOLE && out_data_len == 0) | |
3597 | goto lseek_exit; | |
3598 | ||
3599 | if (whence == SEEK_DATA && out_data_len == 0) { | |
3600 | rc = -ENXIO; | |
3601 | goto lseek_exit; | |
3602 | } | |
3603 | ||
3604 | if (out_data_len < sizeof(struct file_allocated_range_buffer)) { | |
3605 | rc = -EINVAL; | |
3606 | goto lseek_exit; | |
3607 | } | |
3608 | if (whence == SEEK_DATA) { | |
3609 | offset = le64_to_cpu(out_data->file_offset); | |
3610 | goto lseek_exit; | |
3611 | } | |
3612 | if (offset < le64_to_cpu(out_data->file_offset)) | |
3613 | goto lseek_exit; | |
3614 | ||
3615 | offset = le64_to_cpu(out_data->file_offset) + le64_to_cpu(out_data->length); | |
3616 | ||
3617 | lseek_exit: | |
3618 | free_xid(xid); | |
3619 | kfree(out_data); | |
3620 | if (!rc) | |
3621 | return vfs_setpos(file, offset, inode->i_sb->s_maxbytes); | |
3622 | else | |
3623 | return rc; | |
3624 | } | |
3625 | ||
2f3ebaba RS |
3626 | static int smb3_fiemap(struct cifs_tcon *tcon, |
3627 | struct cifsFileInfo *cfile, | |
3628 | struct fiemap_extent_info *fei, u64 start, u64 len) | |
3629 | { | |
3630 | unsigned int xid; | |
3631 | struct file_allocated_range_buffer in_data, *out_data; | |
3632 | u32 out_data_len; | |
3633 | int i, num, rc, flags, last_blob; | |
3634 | u64 next; | |
3635 | ||
45dd052e | 3636 | rc = fiemap_prep(d_inode(cfile->dentry), fei, start, &len, 0); |
cddf8a2c CH |
3637 | if (rc) |
3638 | return rc; | |
2f3ebaba RS |
3639 | |
3640 | xid = get_xid(); | |
3641 | again: | |
3642 | in_data.file_offset = cpu_to_le64(start); | |
3643 | in_data.length = cpu_to_le64(len); | |
3644 | ||
3645 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
3646 | cfile->fid.volatile_fid, | |
3647 | FSCTL_QUERY_ALLOCATED_RANGES, true, | |
3648 | (char *)&in_data, sizeof(in_data), | |
3649 | 1024 * sizeof(struct file_allocated_range_buffer), | |
3650 | (char **)&out_data, &out_data_len); | |
3651 | if (rc == -E2BIG) { | |
3652 | last_blob = 0; | |
3653 | rc = 0; | |
3654 | } else | |
3655 | last_blob = 1; | |
3656 | if (rc) | |
3657 | goto out; | |
3658 | ||
979a2665 | 3659 | if (out_data_len && out_data_len < sizeof(struct file_allocated_range_buffer)) { |
2f3ebaba RS |
3660 | rc = -EINVAL; |
3661 | goto out; | |
3662 | } | |
3663 | if (out_data_len % sizeof(struct file_allocated_range_buffer)) { | |
3664 | rc = -EINVAL; | |
3665 | goto out; | |
3666 | } | |
3667 | ||
3668 | num = out_data_len / sizeof(struct file_allocated_range_buffer); | |
3669 | for (i = 0; i < num; i++) { | |
3670 | flags = 0; | |
3671 | if (i == num - 1 && last_blob) | |
3672 | flags |= FIEMAP_EXTENT_LAST; | |
3673 | ||
3674 | rc = fiemap_fill_next_extent(fei, | |
3675 | le64_to_cpu(out_data[i].file_offset), | |
3676 | le64_to_cpu(out_data[i].file_offset), | |
3677 | le64_to_cpu(out_data[i].length), | |
3678 | flags); | |
3679 | if (rc < 0) | |
3680 | goto out; | |
3681 | if (rc == 1) { | |
3682 | rc = 0; | |
3683 | goto out; | |
3684 | } | |
3685 | } | |
3686 | ||
3687 | if (!last_blob) { | |
3688 | next = le64_to_cpu(out_data[num - 1].file_offset) + | |
3689 | le64_to_cpu(out_data[num - 1].length); | |
3690 | len = len - (next - start); | |
3691 | start = next; | |
3692 | goto again; | |
3693 | } | |
3694 | ||
3695 | out: | |
3696 | free_xid(xid); | |
3697 | kfree(out_data); | |
3698 | return rc; | |
3699 | } | |
9ccf3216 | 3700 | |
31742c5a SF |
3701 | static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode, |
3702 | loff_t off, loff_t len) | |
3703 | { | |
3704 | /* KEEP_SIZE already checked for by do_fallocate */ | |
3705 | if (mode & FALLOC_FL_PUNCH_HOLE) | |
3706 | return smb3_punch_hole(file, tcon, off, len); | |
30175628 SF |
3707 | else if (mode & FALLOC_FL_ZERO_RANGE) { |
3708 | if (mode & FALLOC_FL_KEEP_SIZE) | |
3709 | return smb3_zero_range(file, tcon, off, len, true); | |
3710 | return smb3_zero_range(file, tcon, off, len, false); | |
9ccf3216 SF |
3711 | } else if (mode == FALLOC_FL_KEEP_SIZE) |
3712 | return smb3_simple_falloc(file, tcon, off, len, true); | |
3713 | else if (mode == 0) | |
3714 | return smb3_simple_falloc(file, tcon, off, len, false); | |
31742c5a SF |
3715 | |
3716 | return -EOPNOTSUPP; | |
3717 | } | |
3718 | ||
c11f1df5 SP |
3719 | static void |
3720 | smb2_downgrade_oplock(struct TCP_Server_Info *server, | |
9bd45408 PS |
3721 | struct cifsInodeInfo *cinode, __u32 oplock, |
3722 | unsigned int epoch, bool *purge_cache) | |
c11f1df5 | 3723 | { |
9bd45408 | 3724 | server->ops->set_oplock_level(cinode, oplock, 0, NULL); |
c11f1df5 SP |
3725 | } |
3726 | ||
7b9b9edb | 3727 | static void |
9bd45408 PS |
3728 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
3729 | unsigned int epoch, bool *purge_cache); | |
3730 | ||
3731 | static void | |
3732 | smb3_downgrade_oplock(struct TCP_Server_Info *server, | |
3733 | struct cifsInodeInfo *cinode, __u32 oplock, | |
3734 | unsigned int epoch, bool *purge_cache) | |
7b9b9edb | 3735 | { |
9bd45408 PS |
3736 | unsigned int old_state = cinode->oplock; |
3737 | unsigned int old_epoch = cinode->epoch; | |
3738 | unsigned int new_state; | |
3739 | ||
3740 | if (epoch > old_epoch) { | |
3741 | smb21_set_oplock_level(cinode, oplock, 0, NULL); | |
3742 | cinode->epoch = epoch; | |
3743 | } | |
3744 | ||
3745 | new_state = cinode->oplock; | |
3746 | *purge_cache = false; | |
3747 | ||
3748 | if ((old_state & CIFS_CACHE_READ_FLG) != 0 && | |
3749 | (new_state & CIFS_CACHE_READ_FLG) == 0) | |
3750 | *purge_cache = true; | |
3751 | else if (old_state == new_state && (epoch - old_epoch > 1)) | |
3752 | *purge_cache = true; | |
7b9b9edb PS |
3753 | } |
3754 | ||
53ef1016 | 3755 | static void |
42873b0a PS |
3756 | smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
3757 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
3758 | { |
3759 | oplock &= 0xFF; | |
3760 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
3761 | return; | |
3762 | if (oplock == SMB2_OPLOCK_LEVEL_BATCH) { | |
42873b0a | 3763 | cinode->oplock = CIFS_CACHE_RHW_FLG; |
53ef1016 PS |
3764 | cifs_dbg(FYI, "Batch Oplock granted on inode %p\n", |
3765 | &cinode->vfs_inode); | |
3766 | } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) { | |
42873b0a | 3767 | cinode->oplock = CIFS_CACHE_RW_FLG; |
53ef1016 PS |
3768 | cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n", |
3769 | &cinode->vfs_inode); | |
3770 | } else if (oplock == SMB2_OPLOCK_LEVEL_II) { | |
3771 | cinode->oplock = CIFS_CACHE_READ_FLG; | |
3772 | cifs_dbg(FYI, "Level II Oplock granted on inode %p\n", | |
3773 | &cinode->vfs_inode); | |
3774 | } else | |
3775 | cinode->oplock = 0; | |
3776 | } | |
3777 | ||
3778 | static void | |
42873b0a PS |
3779 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
3780 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
3781 | { |
3782 | char message[5] = {0}; | |
6a54b2e0 | 3783 | unsigned int new_oplock = 0; |
53ef1016 PS |
3784 | |
3785 | oplock &= 0xFF; | |
3786 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
3787 | return; | |
3788 | ||
a016e279 PS |
3789 | /* Check if the server granted an oplock rather than a lease */ |
3790 | if (oplock & SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
3791 | return smb2_set_oplock_level(cinode, oplock, epoch, | |
3792 | purge_cache); | |
3793 | ||
53ef1016 | 3794 | if (oplock & SMB2_LEASE_READ_CACHING_HE) { |
6a54b2e0 | 3795 | new_oplock |= CIFS_CACHE_READ_FLG; |
53ef1016 PS |
3796 | strcat(message, "R"); |
3797 | } | |
3798 | if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) { | |
6a54b2e0 | 3799 | new_oplock |= CIFS_CACHE_HANDLE_FLG; |
53ef1016 PS |
3800 | strcat(message, "H"); |
3801 | } | |
3802 | if (oplock & SMB2_LEASE_WRITE_CACHING_HE) { | |
6a54b2e0 | 3803 | new_oplock |= CIFS_CACHE_WRITE_FLG; |
53ef1016 PS |
3804 | strcat(message, "W"); |
3805 | } | |
6a54b2e0 CP |
3806 | if (!new_oplock) |
3807 | strncpy(message, "None", sizeof(message)); | |
3808 | ||
3809 | cinode->oplock = new_oplock; | |
53ef1016 PS |
3810 | cifs_dbg(FYI, "%s Lease granted on inode %p\n", message, |
3811 | &cinode->vfs_inode); | |
3812 | } | |
3813 | ||
42873b0a PS |
3814 | static void |
3815 | smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, | |
3816 | unsigned int epoch, bool *purge_cache) | |
3817 | { | |
3818 | unsigned int old_oplock = cinode->oplock; | |
3819 | ||
3820 | smb21_set_oplock_level(cinode, oplock, epoch, purge_cache); | |
3821 | ||
3822 | if (purge_cache) { | |
3823 | *purge_cache = false; | |
3824 | if (old_oplock == CIFS_CACHE_READ_FLG) { | |
3825 | if (cinode->oplock == CIFS_CACHE_READ_FLG && | |
3826 | (epoch - cinode->epoch > 0)) | |
3827 | *purge_cache = true; | |
3828 | else if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
3829 | (epoch - cinode->epoch > 1)) | |
3830 | *purge_cache = true; | |
3831 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
3832 | (epoch - cinode->epoch > 1)) | |
3833 | *purge_cache = true; | |
3834 | else if (cinode->oplock == 0 && | |
3835 | (epoch - cinode->epoch > 0)) | |
3836 | *purge_cache = true; | |
3837 | } else if (old_oplock == CIFS_CACHE_RH_FLG) { | |
3838 | if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
3839 | (epoch - cinode->epoch > 0)) | |
3840 | *purge_cache = true; | |
3841 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
3842 | (epoch - cinode->epoch > 1)) | |
3843 | *purge_cache = true; | |
3844 | } | |
3845 | cinode->epoch = epoch; | |
3846 | } | |
3847 | } | |
3848 | ||
53ef1016 PS |
3849 | static bool |
3850 | smb2_is_read_op(__u32 oplock) | |
3851 | { | |
3852 | return oplock == SMB2_OPLOCK_LEVEL_II; | |
3853 | } | |
3854 | ||
3855 | static bool | |
3856 | smb21_is_read_op(__u32 oplock) | |
3857 | { | |
3858 | return (oplock & SMB2_LEASE_READ_CACHING_HE) && | |
3859 | !(oplock & SMB2_LEASE_WRITE_CACHING_HE); | |
3860 | } | |
3861 | ||
f047390a PS |
3862 | static __le32 |
3863 | map_oplock_to_lease(u8 oplock) | |
3864 | { | |
3865 | if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
3866 | return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING; | |
3867 | else if (oplock == SMB2_OPLOCK_LEVEL_II) | |
3868 | return SMB2_LEASE_READ_CACHING; | |
3869 | else if (oplock == SMB2_OPLOCK_LEVEL_BATCH) | |
3870 | return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING | | |
3871 | SMB2_LEASE_WRITE_CACHING; | |
3872 | return 0; | |
3873 | } | |
3874 | ||
a41a28bd PS |
3875 | static char * |
3876 | smb2_create_lease_buf(u8 *lease_key, u8 oplock) | |
3877 | { | |
3878 | struct create_lease *buf; | |
3879 | ||
3880 | buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL); | |
3881 | if (!buf) | |
3882 | return NULL; | |
3883 | ||
729c0c9d | 3884 | memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE); |
f047390a | 3885 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
a41a28bd PS |
3886 | |
3887 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
3888 | (struct create_lease, lcontext)); | |
3889 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context)); | |
3890 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
3891 | (struct create_lease, Name)); | |
3892 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 3893 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
a41a28bd PS |
3894 | buf->Name[0] = 'R'; |
3895 | buf->Name[1] = 'q'; | |
3896 | buf->Name[2] = 'L'; | |
3897 | buf->Name[3] = 's'; | |
3898 | return (char *)buf; | |
3899 | } | |
3900 | ||
f047390a PS |
3901 | static char * |
3902 | smb3_create_lease_buf(u8 *lease_key, u8 oplock) | |
3903 | { | |
3904 | struct create_lease_v2 *buf; | |
3905 | ||
3906 | buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL); | |
3907 | if (!buf) | |
3908 | return NULL; | |
3909 | ||
729c0c9d | 3910 | memcpy(&buf->lcontext.LeaseKey, lease_key, SMB2_LEASE_KEY_SIZE); |
f047390a PS |
3911 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
3912 | ||
3913 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
3914 | (struct create_lease_v2, lcontext)); | |
3915 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2)); | |
3916 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
3917 | (struct create_lease_v2, Name)); | |
3918 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 3919 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
f047390a PS |
3920 | buf->Name[0] = 'R'; |
3921 | buf->Name[1] = 'q'; | |
3922 | buf->Name[2] = 'L'; | |
3923 | buf->Name[3] = 's'; | |
3924 | return (char *)buf; | |
3925 | } | |
3926 | ||
b5c7cde3 | 3927 | static __u8 |
96164ab2 | 3928 | smb2_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key) |
b5c7cde3 PS |
3929 | { |
3930 | struct create_lease *lc = (struct create_lease *)buf; | |
3931 | ||
42873b0a | 3932 | *epoch = 0; /* not used */ |
b5c7cde3 PS |
3933 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
3934 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
3935 | return le32_to_cpu(lc->lcontext.LeaseState); | |
3936 | } | |
3937 | ||
f047390a | 3938 | static __u8 |
96164ab2 | 3939 | smb3_parse_lease_buf(void *buf, unsigned int *epoch, char *lease_key) |
f047390a PS |
3940 | { |
3941 | struct create_lease_v2 *lc = (struct create_lease_v2 *)buf; | |
3942 | ||
42873b0a | 3943 | *epoch = le16_to_cpu(lc->lcontext.Epoch); |
f047390a PS |
3944 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
3945 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
96164ab2 | 3946 | if (lease_key) |
729c0c9d | 3947 | memcpy(lease_key, &lc->lcontext.LeaseKey, SMB2_LEASE_KEY_SIZE); |
f047390a PS |
3948 | return le32_to_cpu(lc->lcontext.LeaseState); |
3949 | } | |
3950 | ||
7f6c5008 PS |
3951 | static unsigned int |
3952 | smb2_wp_retry_size(struct inode *inode) | |
3953 | { | |
3954 | return min_t(unsigned int, CIFS_SB(inode->i_sb)->wsize, | |
3955 | SMB2_MAX_BUFFER_SIZE); | |
3956 | } | |
3957 | ||
52755808 PS |
3958 | static bool |
3959 | smb2_dir_needs_close(struct cifsFileInfo *cfile) | |
3960 | { | |
3961 | return !cfile->invalidHandle; | |
3962 | } | |
3963 | ||
026e93dc | 3964 | static void |
977b6170 | 3965 | fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, unsigned int orig_len, |
2b2f7548 | 3966 | struct smb_rqst *old_rq, __le16 cipher_type) |
026e93dc PS |
3967 | { |
3968 | struct smb2_sync_hdr *shdr = | |
c713c877 | 3969 | (struct smb2_sync_hdr *)old_rq->rq_iov[0].iov_base; |
026e93dc PS |
3970 | |
3971 | memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr)); | |
3972 | tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; | |
3973 | tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); | |
3974 | tr_hdr->Flags = cpu_to_le16(0x01); | |
63ca5656 SF |
3975 | if ((cipher_type == SMB2_ENCRYPTION_AES128_GCM) || |
3976 | (cipher_type == SMB2_ENCRYPTION_AES256_GCM)) | |
fd08f2db | 3977 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES_GCM_NONCE); |
2b2f7548 | 3978 | else |
fd08f2db | 3979 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES_CCM_NONCE); |
026e93dc | 3980 | memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8); |
026e93dc PS |
3981 | } |
3982 | ||
262916bc RS |
3983 | /* We can not use the normal sg_set_buf() as we will sometimes pass a |
3984 | * stack object as buf. | |
3985 | */ | |
3986 | static inline void smb2_sg_set_buf(struct scatterlist *sg, const void *buf, | |
3987 | unsigned int buflen) | |
3988 | { | |
ee9d6618 ST |
3989 | void *addr; |
3990 | /* | |
3991 | * VMAP_STACK (at least) puts stack into the vmalloc address space | |
3992 | */ | |
3993 | if (is_vmalloc_addr(buf)) | |
3994 | addr = vmalloc_to_page(buf); | |
3995 | else | |
3996 | addr = virt_to_page(buf); | |
3997 | sg_set_page(sg, addr, buflen, offset_in_page(buf)); | |
262916bc RS |
3998 | } |
3999 | ||
b2c96de7 RS |
4000 | /* Assumes the first rqst has a transform header as the first iov. |
4001 | * I.e. | |
4002 | * rqst[0].rq_iov[0] is transform header | |
4003 | * rqst[0].rq_iov[1+] data to be encrypted/decrypted | |
4004 | * rqst[1+].rq_iov[0+] data to be encrypted/decrypted | |
977b6170 | 4005 | */ |
026e93dc | 4006 | static struct scatterlist * |
b2c96de7 | 4007 | init_sg(int num_rqst, struct smb_rqst *rqst, u8 *sign) |
026e93dc | 4008 | { |
b2c96de7 | 4009 | unsigned int sg_len; |
026e93dc PS |
4010 | struct scatterlist *sg; |
4011 | unsigned int i; | |
4012 | unsigned int j; | |
b2c96de7 RS |
4013 | unsigned int idx = 0; |
4014 | int skip; | |
4015 | ||
4016 | sg_len = 1; | |
4017 | for (i = 0; i < num_rqst; i++) | |
4018 | sg_len += rqst[i].rq_nvec + rqst[i].rq_npages; | |
026e93dc PS |
4019 | |
4020 | sg = kmalloc_array(sg_len, sizeof(struct scatterlist), GFP_KERNEL); | |
4021 | if (!sg) | |
4022 | return NULL; | |
4023 | ||
4024 | sg_init_table(sg, sg_len); | |
b2c96de7 RS |
4025 | for (i = 0; i < num_rqst; i++) { |
4026 | for (j = 0; j < rqst[i].rq_nvec; j++) { | |
4027 | /* | |
4028 | * The first rqst has a transform header where the | |
4029 | * first 20 bytes are not part of the encrypted blob | |
4030 | */ | |
4031 | skip = (i == 0) && (j == 0) ? 20 : 0; | |
4032 | smb2_sg_set_buf(&sg[idx++], | |
4033 | rqst[i].rq_iov[j].iov_base + skip, | |
4034 | rqst[i].rq_iov[j].iov_len - skip); | |
e77fe73c | 4035 | } |
b2c96de7 RS |
4036 | |
4037 | for (j = 0; j < rqst[i].rq_npages; j++) { | |
4038 | unsigned int len, offset; | |
d5f07fb3 | 4039 | |
b2c96de7 RS |
4040 | rqst_page_get_length(&rqst[i], j, &len, &offset); |
4041 | sg_set_page(&sg[idx++], rqst[i].rq_pages[j], len, offset); | |
4042 | } | |
026e93dc | 4043 | } |
b2c96de7 | 4044 | smb2_sg_set_buf(&sg[idx], sign, SMB2_SIGNATURE_SIZE); |
026e93dc PS |
4045 | return sg; |
4046 | } | |
4047 | ||
61cfac6f PS |
4048 | static int |
4049 | smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) | |
4050 | { | |
4051 | struct cifs_ses *ses; | |
4052 | u8 *ses_enc_key; | |
4053 | ||
4054 | spin_lock(&cifs_tcp_ses_lock); | |
d70e9fa5 AA |
4055 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
4056 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { | |
4057 | if (ses->Suid == ses_id) { | |
4058 | ses_enc_key = enc ? ses->smb3encryptionkey : | |
4059 | ses->smb3decryptionkey; | |
4060 | memcpy(key, ses_enc_key, SMB3_SIGN_KEY_SIZE); | |
4061 | spin_unlock(&cifs_tcp_ses_lock); | |
4062 | return 0; | |
4063 | } | |
4064 | } | |
61cfac6f PS |
4065 | } |
4066 | spin_unlock(&cifs_tcp_ses_lock); | |
4067 | ||
4068 | return 1; | |
4069 | } | |
026e93dc | 4070 | /* |
c713c877 RS |
4071 | * Encrypt or decrypt @rqst message. @rqst[0] has the following format: |
4072 | * iov[0] - transform header (associate data), | |
4073 | * iov[1-N] - SMB2 header and pages - data to encrypt. | |
4074 | * On success return encrypted data in iov[1-N] and pages, leave iov[0] | |
026e93dc PS |
4075 | * untouched. |
4076 | */ | |
4077 | static int | |
b2c96de7 RS |
4078 | crypt_message(struct TCP_Server_Info *server, int num_rqst, |
4079 | struct smb_rqst *rqst, int enc) | |
026e93dc PS |
4080 | { |
4081 | struct smb2_transform_hdr *tr_hdr = | |
b2c96de7 | 4082 | (struct smb2_transform_hdr *)rqst[0].rq_iov[0].iov_base; |
1fc6ad2f | 4083 | unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 20; |
026e93dc PS |
4084 | int rc = 0; |
4085 | struct scatterlist *sg; | |
4086 | u8 sign[SMB2_SIGNATURE_SIZE] = {}; | |
61cfac6f | 4087 | u8 key[SMB3_SIGN_KEY_SIZE]; |
026e93dc PS |
4088 | struct aead_request *req; |
4089 | char *iv; | |
4090 | unsigned int iv_len; | |
a5186b85 | 4091 | DECLARE_CRYPTO_WAIT(wait); |
026e93dc PS |
4092 | struct crypto_aead *tfm; |
4093 | unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
4094 | ||
61cfac6f PS |
4095 | rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key); |
4096 | if (rc) { | |
3175eb9b | 4097 | cifs_server_dbg(VFS, "%s: Could not get %scryption key\n", __func__, |
61cfac6f | 4098 | enc ? "en" : "de"); |
0bd294b5 | 4099 | return rc; |
026e93dc PS |
4100 | } |
4101 | ||
4102 | rc = smb3_crypto_aead_allocate(server); | |
4103 | if (rc) { | |
3175eb9b | 4104 | cifs_server_dbg(VFS, "%s: crypto alloc failed\n", __func__); |
026e93dc PS |
4105 | return rc; |
4106 | } | |
4107 | ||
4108 | tfm = enc ? server->secmech.ccmaesencrypt : | |
4109 | server->secmech.ccmaesdecrypt; | |
63ca5656 SF |
4110 | |
4111 | if (server->cipher_type == SMB2_ENCRYPTION_AES256_GCM) | |
4112 | rc = crypto_aead_setkey(tfm, key, SMB3_GCM256_CRYPTKEY_SIZE); | |
4113 | else | |
4114 | rc = crypto_aead_setkey(tfm, key, SMB3_SIGN_KEY_SIZE); | |
4115 | ||
026e93dc | 4116 | if (rc) { |
3175eb9b | 4117 | cifs_server_dbg(VFS, "%s: Failed to set aead key %d\n", __func__, rc); |
026e93dc PS |
4118 | return rc; |
4119 | } | |
4120 | ||
4121 | rc = crypto_aead_setauthsize(tfm, SMB2_SIGNATURE_SIZE); | |
4122 | if (rc) { | |
3175eb9b | 4123 | cifs_server_dbg(VFS, "%s: Failed to set authsize %d\n", __func__, rc); |
026e93dc PS |
4124 | return rc; |
4125 | } | |
4126 | ||
4127 | req = aead_request_alloc(tfm, GFP_KERNEL); | |
4128 | if (!req) { | |
3175eb9b | 4129 | cifs_server_dbg(VFS, "%s: Failed to alloc aead request\n", __func__); |
026e93dc PS |
4130 | return -ENOMEM; |
4131 | } | |
4132 | ||
4133 | if (!enc) { | |
4134 | memcpy(sign, &tr_hdr->Signature, SMB2_SIGNATURE_SIZE); | |
4135 | crypt_len += SMB2_SIGNATURE_SIZE; | |
4136 | } | |
4137 | ||
b2c96de7 | 4138 | sg = init_sg(num_rqst, rqst, sign); |
026e93dc | 4139 | if (!sg) { |
3175eb9b | 4140 | cifs_server_dbg(VFS, "%s: Failed to init sg\n", __func__); |
517a6e43 | 4141 | rc = -ENOMEM; |
026e93dc PS |
4142 | goto free_req; |
4143 | } | |
4144 | ||
4145 | iv_len = crypto_aead_ivsize(tfm); | |
4146 | iv = kzalloc(iv_len, GFP_KERNEL); | |
4147 | if (!iv) { | |
3175eb9b | 4148 | cifs_server_dbg(VFS, "%s: Failed to alloc iv\n", __func__); |
517a6e43 | 4149 | rc = -ENOMEM; |
026e93dc PS |
4150 | goto free_sg; |
4151 | } | |
2b2f7548 | 4152 | |
63ca5656 SF |
4153 | if ((server->cipher_type == SMB2_ENCRYPTION_AES128_GCM) || |
4154 | (server->cipher_type == SMB2_ENCRYPTION_AES256_GCM)) | |
fd08f2db | 4155 | memcpy(iv, (char *)tr_hdr->Nonce, SMB3_AES_GCM_NONCE); |
2b2f7548 SF |
4156 | else { |
4157 | iv[0] = 3; | |
fd08f2db | 4158 | memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES_CCM_NONCE); |
2b2f7548 | 4159 | } |
026e93dc PS |
4160 | |
4161 | aead_request_set_crypt(req, sg, sg, crypt_len, iv); | |
4162 | aead_request_set_ad(req, assoc_data_len); | |
4163 | ||
4164 | aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, | |
a5186b85 | 4165 | crypto_req_done, &wait); |
026e93dc | 4166 | |
a5186b85 GBY |
4167 | rc = crypto_wait_req(enc ? crypto_aead_encrypt(req) |
4168 | : crypto_aead_decrypt(req), &wait); | |
026e93dc PS |
4169 | |
4170 | if (!rc && enc) | |
4171 | memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE); | |
4172 | ||
4173 | kfree(iv); | |
4174 | free_sg: | |
4175 | kfree(sg); | |
4176 | free_req: | |
4177 | kfree(req); | |
4178 | return rc; | |
4179 | } | |
4180 | ||
b2c96de7 RS |
4181 | void |
4182 | smb3_free_compound_rqst(int num_rqst, struct smb_rqst *rqst) | |
4183 | { | |
4184 | int i, j; | |
4185 | ||
4186 | for (i = 0; i < num_rqst; i++) { | |
4187 | if (rqst[i].rq_pages) { | |
4188 | for (j = rqst[i].rq_npages - 1; j >= 0; j--) | |
4189 | put_page(rqst[i].rq_pages[j]); | |
4190 | kfree(rqst[i].rq_pages); | |
4191 | } | |
4192 | } | |
4193 | } | |
4194 | ||
4195 | /* | |
4196 | * This function will initialize new_rq and encrypt the content. | |
4197 | * The first entry, new_rq[0], only contains a single iov which contains | |
4198 | * a smb2_transform_hdr and is pre-allocated by the caller. | |
4199 | * This function then populates new_rq[1+] with the content from olq_rq[0+]. | |
4200 | * | |
4201 | * The end result is an array of smb_rqst structures where the first structure | |
4202 | * only contains a single iov for the transform header which we then can pass | |
4203 | * to crypt_message(). | |
4204 | * | |
4205 | * new_rq[0].rq_iov[0] : smb2_transform_hdr pre-allocated by the caller | |
4206 | * new_rq[1+].rq_iov[*] == old_rq[0+].rq_iov[*] : SMB2/3 requests | |
4207 | */ | |
026e93dc | 4208 | static int |
b2c96de7 RS |
4209 | smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst, |
4210 | struct smb_rqst *new_rq, struct smb_rqst *old_rq) | |
026e93dc | 4211 | { |
026e93dc | 4212 | struct page **pages; |
b2c96de7 RS |
4213 | struct smb2_transform_hdr *tr_hdr = new_rq[0].rq_iov[0].iov_base; |
4214 | unsigned int npages; | |
4215 | unsigned int orig_len = 0; | |
4216 | int i, j; | |
026e93dc PS |
4217 | int rc = -ENOMEM; |
4218 | ||
b2c96de7 RS |
4219 | for (i = 1; i < num_rqst; i++) { |
4220 | npages = old_rq[i - 1].rq_npages; | |
4221 | pages = kmalloc_array(npages, sizeof(struct page *), | |
4222 | GFP_KERNEL); | |
4223 | if (!pages) | |
4224 | goto err_free; | |
4225 | ||
4226 | new_rq[i].rq_pages = pages; | |
4227 | new_rq[i].rq_npages = npages; | |
4228 | new_rq[i].rq_offset = old_rq[i - 1].rq_offset; | |
4229 | new_rq[i].rq_pagesz = old_rq[i - 1].rq_pagesz; | |
4230 | new_rq[i].rq_tailsz = old_rq[i - 1].rq_tailsz; | |
4231 | new_rq[i].rq_iov = old_rq[i - 1].rq_iov; | |
4232 | new_rq[i].rq_nvec = old_rq[i - 1].rq_nvec; | |
4233 | ||
4234 | orig_len += smb_rqst_len(server, &old_rq[i - 1]); | |
4235 | ||
4236 | for (j = 0; j < npages; j++) { | |
4237 | pages[j] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
4238 | if (!pages[j]) | |
4239 | goto err_free; | |
4240 | } | |
026e93dc | 4241 | |
b2c96de7 RS |
4242 | /* copy pages form the old */ |
4243 | for (j = 0; j < npages; j++) { | |
4244 | char *dst, *src; | |
4245 | unsigned int offset, len; | |
977b6170 | 4246 | |
b2c96de7 | 4247 | rqst_page_get_length(&new_rq[i], j, &len, &offset); |
026e93dc | 4248 | |
b2c96de7 RS |
4249 | dst = (char *) kmap(new_rq[i].rq_pages[j]) + offset; |
4250 | src = (char *) kmap(old_rq[i - 1].rq_pages[j]) + offset; | |
026e93dc | 4251 | |
b2c96de7 RS |
4252 | memcpy(dst, src, len); |
4253 | kunmap(new_rq[i].rq_pages[j]); | |
4254 | kunmap(old_rq[i - 1].rq_pages[j]); | |
4255 | } | |
4256 | } | |
35e2cc1b | 4257 | |
b2c96de7 | 4258 | /* fill the 1st iov with a transform header */ |
2b2f7548 | 4259 | fill_transform_hdr(tr_hdr, orig_len, old_rq, server->cipher_type); |
d5f07fb3 | 4260 | |
b2c96de7 | 4261 | rc = crypt_message(server, num_rqst, new_rq, 1); |
a205d500 | 4262 | cifs_dbg(FYI, "Encrypt message returned %d\n", rc); |
026e93dc | 4263 | if (rc) |
b2c96de7 | 4264 | goto err_free; |
026e93dc PS |
4265 | |
4266 | return rc; | |
4267 | ||
b2c96de7 RS |
4268 | err_free: |
4269 | smb3_free_compound_rqst(num_rqst - 1, &new_rq[1]); | |
026e93dc PS |
4270 | return rc; |
4271 | } | |
4272 | ||
4326ed2f PS |
4273 | static int |
4274 | smb3_is_transform_hdr(void *buf) | |
4275 | { | |
4276 | struct smb2_transform_hdr *trhdr = buf; | |
4277 | ||
4278 | return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM; | |
4279 | } | |
4280 | ||
4281 | static int | |
4282 | decrypt_raw_data(struct TCP_Server_Info *server, char *buf, | |
4283 | unsigned int buf_data_size, struct page **pages, | |
62593011 RS |
4284 | unsigned int npages, unsigned int page_data_size, |
4285 | bool is_offloaded) | |
4326ed2f | 4286 | { |
c713c877 | 4287 | struct kvec iov[2]; |
4326ed2f | 4288 | struct smb_rqst rqst = {NULL}; |
4326ed2f PS |
4289 | int rc; |
4290 | ||
c713c877 RS |
4291 | iov[0].iov_base = buf; |
4292 | iov[0].iov_len = sizeof(struct smb2_transform_hdr); | |
4293 | iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr); | |
4294 | iov[1].iov_len = buf_data_size; | |
4326ed2f PS |
4295 | |
4296 | rqst.rq_iov = iov; | |
c713c877 | 4297 | rqst.rq_nvec = 2; |
4326ed2f PS |
4298 | rqst.rq_pages = pages; |
4299 | rqst.rq_npages = npages; | |
4300 | rqst.rq_pagesz = PAGE_SIZE; | |
4301 | rqst.rq_tailsz = (page_data_size % PAGE_SIZE) ? : PAGE_SIZE; | |
4302 | ||
b2c96de7 | 4303 | rc = crypt_message(server, 1, &rqst, 0); |
a205d500 | 4304 | cifs_dbg(FYI, "Decrypt message returned %d\n", rc); |
4326ed2f PS |
4305 | |
4306 | if (rc) | |
4307 | return rc; | |
4308 | ||
c713c877 | 4309 | memmove(buf, iov[1].iov_base, buf_data_size); |
977b6170 | 4310 | |
62593011 RS |
4311 | if (!is_offloaded) |
4312 | server->total_read = buf_data_size + page_data_size; | |
4326ed2f PS |
4313 | |
4314 | return rc; | |
4315 | } | |
4316 | ||
c42a6abe PS |
4317 | static int |
4318 | read_data_into_pages(struct TCP_Server_Info *server, struct page **pages, | |
4319 | unsigned int npages, unsigned int len) | |
4320 | { | |
4321 | int i; | |
4322 | int length; | |
4323 | ||
4324 | for (i = 0; i < npages; i++) { | |
4325 | struct page *page = pages[i]; | |
4326 | size_t n; | |
4327 | ||
4328 | n = len; | |
4329 | if (len >= PAGE_SIZE) { | |
4330 | /* enough data to fill the page */ | |
4331 | n = PAGE_SIZE; | |
4332 | len -= n; | |
4333 | } else { | |
4334 | zero_user(page, len, PAGE_SIZE - len); | |
4335 | len = 0; | |
4336 | } | |
1dbe3466 | 4337 | length = cifs_read_page_from_socket(server, page, 0, n); |
c42a6abe PS |
4338 | if (length < 0) |
4339 | return length; | |
4340 | server->total_read += length; | |
4341 | } | |
4342 | ||
4343 | return 0; | |
4344 | } | |
4345 | ||
4346 | static int | |
4347 | init_read_bvec(struct page **pages, unsigned int npages, unsigned int data_size, | |
4348 | unsigned int cur_off, struct bio_vec **page_vec) | |
4349 | { | |
4350 | struct bio_vec *bvec; | |
4351 | int i; | |
4352 | ||
4353 | bvec = kcalloc(npages, sizeof(struct bio_vec), GFP_KERNEL); | |
4354 | if (!bvec) | |
4355 | return -ENOMEM; | |
4356 | ||
4357 | for (i = 0; i < npages; i++) { | |
4358 | bvec[i].bv_page = pages[i]; | |
4359 | bvec[i].bv_offset = (i == 0) ? cur_off : 0; | |
4360 | bvec[i].bv_len = min_t(unsigned int, PAGE_SIZE, data_size); | |
4361 | data_size -= bvec[i].bv_len; | |
4362 | } | |
4363 | ||
4364 | if (data_size != 0) { | |
4365 | cifs_dbg(VFS, "%s: something went wrong\n", __func__); | |
4366 | kfree(bvec); | |
4367 | return -EIO; | |
4368 | } | |
4369 | ||
4370 | *page_vec = bvec; | |
4371 | return 0; | |
4372 | } | |
4373 | ||
4326ed2f PS |
4374 | static int |
4375 | handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, | |
4376 | char *buf, unsigned int buf_len, struct page **pages, | |
de9ac0a6 RS |
4377 | unsigned int npages, unsigned int page_data_size, |
4378 | bool is_offloaded) | |
4326ed2f PS |
4379 | { |
4380 | unsigned int data_offset; | |
4381 | unsigned int data_len; | |
c42a6abe PS |
4382 | unsigned int cur_off; |
4383 | unsigned int cur_page_idx; | |
4384 | unsigned int pad_len; | |
4326ed2f | 4385 | struct cifs_readdata *rdata = mid->callback_data; |
49f466bd | 4386 | struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)buf; |
4326ed2f PS |
4387 | struct bio_vec *bvec = NULL; |
4388 | struct iov_iter iter; | |
4389 | struct kvec iov; | |
4390 | int length; | |
74dcf418 | 4391 | bool use_rdma_mr = false; |
4326ed2f PS |
4392 | |
4393 | if (shdr->Command != SMB2_READ) { | |
3175eb9b | 4394 | cifs_server_dbg(VFS, "only big read responses are supported\n"); |
4326ed2f PS |
4395 | return -ENOTSUPP; |
4396 | } | |
4397 | ||
511c54a2 PS |
4398 | if (server->ops->is_session_expired && |
4399 | server->ops->is_session_expired(buf)) { | |
de9ac0a6 RS |
4400 | if (!is_offloaded) |
4401 | cifs_reconnect(server); | |
511c54a2 PS |
4402 | return -1; |
4403 | } | |
4404 | ||
4326ed2f | 4405 | if (server->ops->is_status_pending && |
66265f13 | 4406 | server->ops->is_status_pending(buf, server)) |
4326ed2f PS |
4407 | return -1; |
4408 | ||
ec678eae PS |
4409 | /* set up first two iov to get credits */ |
4410 | rdata->iov[0].iov_base = buf; | |
bb1bccb6 PS |
4411 | rdata->iov[0].iov_len = 0; |
4412 | rdata->iov[1].iov_base = buf; | |
ec678eae | 4413 | rdata->iov[1].iov_len = |
bb1bccb6 | 4414 | min_t(unsigned int, buf_len, server->vals->read_rsp_size); |
ec678eae PS |
4415 | cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", |
4416 | rdata->iov[0].iov_base, rdata->iov[0].iov_len); | |
4417 | cifs_dbg(FYI, "1: iov_base=%p iov_len=%zu\n", | |
4418 | rdata->iov[1].iov_base, rdata->iov[1].iov_len); | |
4419 | ||
4420 | rdata->result = server->ops->map_error(buf, true); | |
4326ed2f PS |
4421 | if (rdata->result != 0) { |
4422 | cifs_dbg(FYI, "%s: server returned error %d\n", | |
4423 | __func__, rdata->result); | |
ec678eae | 4424 | /* normal error on read response */ |
ac873aa3 RS |
4425 | if (is_offloaded) |
4426 | mid->mid_state = MID_RESPONSE_RECEIVED; | |
4427 | else | |
4428 | dequeue_mid(mid, false); | |
4326ed2f PS |
4429 | return 0; |
4430 | } | |
4431 | ||
1fc6ad2f | 4432 | data_offset = server->ops->read_data_offset(buf); |
74dcf418 LL |
4433 | #ifdef CONFIG_CIFS_SMB_DIRECT |
4434 | use_rdma_mr = rdata->mr; | |
4435 | #endif | |
4436 | data_len = server->ops->read_data_length(buf, use_rdma_mr); | |
4326ed2f PS |
4437 | |
4438 | if (data_offset < server->vals->read_rsp_size) { | |
4439 | /* | |
4440 | * win2k8 sometimes sends an offset of 0 when the read | |
4441 | * is beyond the EOF. Treat it as if the data starts just after | |
4442 | * the header. | |
4443 | */ | |
4444 | cifs_dbg(FYI, "%s: data offset (%u) inside read response header\n", | |
4445 | __func__, data_offset); | |
4446 | data_offset = server->vals->read_rsp_size; | |
4447 | } else if (data_offset > MAX_CIFS_SMALL_BUFFER_SIZE) { | |
4448 | /* data_offset is beyond the end of smallbuf */ | |
4449 | cifs_dbg(FYI, "%s: data offset (%u) beyond end of smallbuf\n", | |
4450 | __func__, data_offset); | |
4451 | rdata->result = -EIO; | |
ac873aa3 RS |
4452 | if (is_offloaded) |
4453 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4454 | else | |
4455 | dequeue_mid(mid, rdata->result); | |
4326ed2f PS |
4456 | return 0; |
4457 | } | |
4458 | ||
c42a6abe PS |
4459 | pad_len = data_offset - server->vals->read_rsp_size; |
4460 | ||
4326ed2f PS |
4461 | if (buf_len <= data_offset) { |
4462 | /* read response payload is in pages */ | |
c42a6abe PS |
4463 | cur_page_idx = pad_len / PAGE_SIZE; |
4464 | cur_off = pad_len % PAGE_SIZE; | |
4465 | ||
4466 | if (cur_page_idx != 0) { | |
4467 | /* data offset is beyond the 1st page of response */ | |
4468 | cifs_dbg(FYI, "%s: data offset (%u) beyond 1st page of response\n", | |
4469 | __func__, data_offset); | |
4470 | rdata->result = -EIO; | |
ac873aa3 RS |
4471 | if (is_offloaded) |
4472 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4473 | else | |
4474 | dequeue_mid(mid, rdata->result); | |
c42a6abe PS |
4475 | return 0; |
4476 | } | |
4477 | ||
4478 | if (data_len > page_data_size - pad_len) { | |
4479 | /* data_len is corrupt -- discard frame */ | |
4480 | rdata->result = -EIO; | |
ac873aa3 RS |
4481 | if (is_offloaded) |
4482 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4483 | else | |
4484 | dequeue_mid(mid, rdata->result); | |
c42a6abe PS |
4485 | return 0; |
4486 | } | |
4487 | ||
4488 | rdata->result = init_read_bvec(pages, npages, page_data_size, | |
4489 | cur_off, &bvec); | |
4490 | if (rdata->result != 0) { | |
ac873aa3 RS |
4491 | if (is_offloaded) |
4492 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4493 | else | |
4494 | dequeue_mid(mid, rdata->result); | |
c42a6abe PS |
4495 | return 0; |
4496 | } | |
4497 | ||
aa563d7b | 4498 | iov_iter_bvec(&iter, WRITE, bvec, npages, data_len); |
4326ed2f PS |
4499 | } else if (buf_len >= data_offset + data_len) { |
4500 | /* read response payload is in buf */ | |
4501 | WARN_ONCE(npages > 0, "read data can be either in buf or in pages"); | |
4502 | iov.iov_base = buf + data_offset; | |
4503 | iov.iov_len = data_len; | |
aa563d7b | 4504 | iov_iter_kvec(&iter, WRITE, &iov, 1, data_len); |
4326ed2f PS |
4505 | } else { |
4506 | /* read response payload cannot be in both buf and pages */ | |
4507 | WARN_ONCE(1, "buf can not contain only a part of read data"); | |
4508 | rdata->result = -EIO; | |
ac873aa3 RS |
4509 | if (is_offloaded) |
4510 | mid->mid_state = MID_RESPONSE_MALFORMED; | |
4511 | else | |
4512 | dequeue_mid(mid, rdata->result); | |
4326ed2f PS |
4513 | return 0; |
4514 | } | |
4515 | ||
4326ed2f PS |
4516 | length = rdata->copy_into_pages(server, rdata, &iter); |
4517 | ||
4518 | kfree(bvec); | |
4519 | ||
4520 | if (length < 0) | |
4521 | return length; | |
4522 | ||
ac873aa3 RS |
4523 | if (is_offloaded) |
4524 | mid->mid_state = MID_RESPONSE_RECEIVED; | |
4525 | else | |
4526 | dequeue_mid(mid, false); | |
4326ed2f PS |
4527 | return length; |
4528 | } | |
4529 | ||
35cf94a3 SF |
4530 | struct smb2_decrypt_work { |
4531 | struct work_struct decrypt; | |
4532 | struct TCP_Server_Info *server; | |
4533 | struct page **ppages; | |
4534 | char *buf; | |
4535 | unsigned int npages; | |
4536 | unsigned int len; | |
4537 | }; | |
4538 | ||
4539 | ||
4540 | static void smb2_decrypt_offload(struct work_struct *work) | |
4541 | { | |
4542 | struct smb2_decrypt_work *dw = container_of(work, | |
4543 | struct smb2_decrypt_work, decrypt); | |
4544 | int i, rc; | |
4545 | struct mid_q_entry *mid; | |
4546 | ||
4547 | rc = decrypt_raw_data(dw->server, dw->buf, dw->server->vals->read_rsp_size, | |
62593011 | 4548 | dw->ppages, dw->npages, dw->len, true); |
35cf94a3 SF |
4549 | if (rc) { |
4550 | cifs_dbg(VFS, "error decrypting rc=%d\n", rc); | |
4551 | goto free_pages; | |
4552 | } | |
4553 | ||
2255397c | 4554 | dw->server->lstrp = jiffies; |
ac873aa3 | 4555 | mid = smb2_find_dequeue_mid(dw->server, dw->buf); |
35cf94a3 SF |
4556 | if (mid == NULL) |
4557 | cifs_dbg(FYI, "mid not found\n"); | |
4558 | else { | |
4559 | mid->decrypted = true; | |
4560 | rc = handle_read_data(dw->server, mid, dw->buf, | |
4561 | dw->server->vals->read_rsp_size, | |
de9ac0a6 RS |
4562 | dw->ppages, dw->npages, dw->len, |
4563 | true); | |
12541000 RS |
4564 | if (rc >= 0) { |
4565 | #ifdef CONFIG_CIFS_STATS2 | |
4566 | mid->when_received = jiffies; | |
4567 | #endif | |
4568 | mid->callback(mid); | |
4569 | } else { | |
4570 | spin_lock(&GlobalMid_Lock); | |
4571 | if (dw->server->tcpStatus == CifsNeedReconnect) { | |
4572 | mid->mid_state = MID_RETRY_NEEDED; | |
4573 | spin_unlock(&GlobalMid_Lock); | |
4574 | mid->callback(mid); | |
4575 | } else { | |
4576 | mid->mid_state = MID_REQUEST_SUBMITTED; | |
4577 | mid->mid_flags &= ~(MID_DELETED); | |
4578 | list_add_tail(&mid->qhead, | |
4579 | &dw->server->pending_mid_q); | |
4580 | spin_unlock(&GlobalMid_Lock); | |
4581 | } | |
4582 | } | |
2255397c | 4583 | cifs_mid_q_entry_release(mid); |
35cf94a3 SF |
4584 | } |
4585 | ||
35cf94a3 SF |
4586 | free_pages: |
4587 | for (i = dw->npages-1; i >= 0; i--) | |
4588 | put_page(dw->ppages[i]); | |
4589 | ||
4590 | kfree(dw->ppages); | |
4591 | cifs_small_buf_release(dw->buf); | |
a08d897b | 4592 | kfree(dw); |
35cf94a3 SF |
4593 | } |
4594 | ||
4595 | ||
c42a6abe | 4596 | static int |
35cf94a3 SF |
4597 | receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid, |
4598 | int *num_mids) | |
c42a6abe PS |
4599 | { |
4600 | char *buf = server->smallbuf; | |
4601 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; | |
4602 | unsigned int npages; | |
4603 | struct page **pages; | |
4604 | unsigned int len; | |
1fc6ad2f | 4605 | unsigned int buflen = server->pdu_size; |
c42a6abe PS |
4606 | int rc; |
4607 | int i = 0; | |
35cf94a3 | 4608 | struct smb2_decrypt_work *dw; |
c42a6abe | 4609 | |
35cf94a3 | 4610 | *num_mids = 1; |
1fc6ad2f | 4611 | len = min_t(unsigned int, buflen, server->vals->read_rsp_size + |
c42a6abe PS |
4612 | sizeof(struct smb2_transform_hdr)) - HEADER_SIZE(server) + 1; |
4613 | ||
4614 | rc = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, len); | |
4615 | if (rc < 0) | |
4616 | return rc; | |
4617 | server->total_read += rc; | |
4618 | ||
1fc6ad2f | 4619 | len = le32_to_cpu(tr_hdr->OriginalMessageSize) - |
93012bf9 | 4620 | server->vals->read_rsp_size; |
c42a6abe PS |
4621 | npages = DIV_ROUND_UP(len, PAGE_SIZE); |
4622 | ||
4623 | pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); | |
4624 | if (!pages) { | |
4625 | rc = -ENOMEM; | |
4626 | goto discard_data; | |
4627 | } | |
4628 | ||
4629 | for (; i < npages; i++) { | |
4630 | pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
4631 | if (!pages[i]) { | |
4632 | rc = -ENOMEM; | |
4633 | goto discard_data; | |
4634 | } | |
4635 | } | |
4636 | ||
4637 | /* read read data into pages */ | |
4638 | rc = read_data_into_pages(server, pages, npages, len); | |
4639 | if (rc) | |
4640 | goto free_pages; | |
4641 | ||
350be257 | 4642 | rc = cifs_discard_remaining_data(server); |
c42a6abe PS |
4643 | if (rc) |
4644 | goto free_pages; | |
4645 | ||
35cf94a3 SF |
4646 | /* |
4647 | * For large reads, offload to different thread for better performance, | |
4648 | * use more cores decrypting which can be expensive | |
4649 | */ | |
4650 | ||
10328c44 | 4651 | if ((server->min_offload) && (server->in_flight > 1) && |
563317ec | 4652 | (server->pdu_size >= server->min_offload)) { |
35cf94a3 SF |
4653 | dw = kmalloc(sizeof(struct smb2_decrypt_work), GFP_KERNEL); |
4654 | if (dw == NULL) | |
4655 | goto non_offloaded_decrypt; | |
4656 | ||
4657 | dw->buf = server->smallbuf; | |
4658 | server->smallbuf = (char *)cifs_small_buf_get(); | |
4659 | ||
4660 | INIT_WORK(&dw->decrypt, smb2_decrypt_offload); | |
4661 | ||
4662 | dw->npages = npages; | |
4663 | dw->server = server; | |
4664 | dw->ppages = pages; | |
4665 | dw->len = len; | |
a08d897b | 4666 | queue_work(decrypt_wq, &dw->decrypt); |
35cf94a3 SF |
4667 | *num_mids = 0; /* worker thread takes care of finding mid */ |
4668 | return -1; | |
4669 | } | |
4670 | ||
4671 | non_offloaded_decrypt: | |
1fc6ad2f | 4672 | rc = decrypt_raw_data(server, buf, server->vals->read_rsp_size, |
62593011 | 4673 | pages, npages, len, false); |
c42a6abe PS |
4674 | if (rc) |
4675 | goto free_pages; | |
4676 | ||
4677 | *mid = smb2_find_mid(server, buf); | |
4678 | if (*mid == NULL) | |
4679 | cifs_dbg(FYI, "mid not found\n"); | |
4680 | else { | |
4681 | cifs_dbg(FYI, "mid found\n"); | |
4682 | (*mid)->decrypted = true; | |
4683 | rc = handle_read_data(server, *mid, buf, | |
4684 | server->vals->read_rsp_size, | |
de9ac0a6 | 4685 | pages, npages, len, false); |
c42a6abe PS |
4686 | } |
4687 | ||
4688 | free_pages: | |
4689 | for (i = i - 1; i >= 0; i--) | |
4690 | put_page(pages[i]); | |
4691 | kfree(pages); | |
4692 | return rc; | |
4693 | discard_data: | |
350be257 | 4694 | cifs_discard_remaining_data(server); |
c42a6abe PS |
4695 | goto free_pages; |
4696 | } | |
4697 | ||
4326ed2f PS |
4698 | static int |
4699 | receive_encrypted_standard(struct TCP_Server_Info *server, | |
b24df3e3 RS |
4700 | struct mid_q_entry **mids, char **bufs, |
4701 | int *num_mids) | |
4326ed2f | 4702 | { |
b24df3e3 | 4703 | int ret, length; |
4326ed2f | 4704 | char *buf = server->smallbuf; |
b24df3e3 | 4705 | struct smb2_sync_hdr *shdr; |
2e96467d | 4706 | unsigned int pdu_length = server->pdu_size; |
4326ed2f PS |
4707 | unsigned int buf_size; |
4708 | struct mid_q_entry *mid_entry; | |
b24df3e3 RS |
4709 | int next_is_large; |
4710 | char *next_buffer = NULL; | |
4711 | ||
4712 | *num_mids = 0; | |
4326ed2f PS |
4713 | |
4714 | /* switch to large buffer if too big for a small one */ | |
1fc6ad2f | 4715 | if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE) { |
4326ed2f PS |
4716 | server->large_buf = true; |
4717 | memcpy(server->bigbuf, buf, server->total_read); | |
4718 | buf = server->bigbuf; | |
4719 | } | |
4720 | ||
4721 | /* now read the rest */ | |
4722 | length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, | |
1fc6ad2f | 4723 | pdu_length - HEADER_SIZE(server) + 1); |
4326ed2f PS |
4724 | if (length < 0) |
4725 | return length; | |
4726 | server->total_read += length; | |
4727 | ||
1fc6ad2f | 4728 | buf_size = pdu_length - sizeof(struct smb2_transform_hdr); |
62593011 | 4729 | length = decrypt_raw_data(server, buf, buf_size, NULL, 0, 0, false); |
4326ed2f PS |
4730 | if (length) |
4731 | return length; | |
4732 | ||
b24df3e3 | 4733 | next_is_large = server->large_buf; |
3edeb4a4 | 4734 | one_more: |
b24df3e3 RS |
4735 | shdr = (struct smb2_sync_hdr *)buf; |
4736 | if (shdr->NextCommand) { | |
3edeb4a4 | 4737 | if (next_is_large) |
b24df3e3 | 4738 | next_buffer = (char *)cifs_buf_get(); |
3edeb4a4 | 4739 | else |
b24df3e3 | 4740 | next_buffer = (char *)cifs_small_buf_get(); |
b24df3e3 | 4741 | memcpy(next_buffer, |
3edeb4a4 | 4742 | buf + le32_to_cpu(shdr->NextCommand), |
b24df3e3 RS |
4743 | pdu_length - le32_to_cpu(shdr->NextCommand)); |
4744 | } | |
4745 | ||
4326ed2f PS |
4746 | mid_entry = smb2_find_mid(server, buf); |
4747 | if (mid_entry == NULL) | |
4748 | cifs_dbg(FYI, "mid not found\n"); | |
4749 | else { | |
4750 | cifs_dbg(FYI, "mid found\n"); | |
4751 | mid_entry->decrypted = true; | |
b24df3e3 | 4752 | mid_entry->resp_buf_size = server->pdu_size; |
4326ed2f PS |
4753 | } |
4754 | ||
b24df3e3 | 4755 | if (*num_mids >= MAX_COMPOUND) { |
3175eb9b | 4756 | cifs_server_dbg(VFS, "too many PDUs in compound\n"); |
b24df3e3 RS |
4757 | return -1; |
4758 | } | |
4759 | bufs[*num_mids] = buf; | |
4760 | mids[(*num_mids)++] = mid_entry; | |
4326ed2f PS |
4761 | |
4762 | if (mid_entry && mid_entry->handle) | |
b24df3e3 RS |
4763 | ret = mid_entry->handle(server, mid_entry); |
4764 | else | |
4765 | ret = cifs_handle_standard(server, mid_entry); | |
4766 | ||
4767 | if (ret == 0 && shdr->NextCommand) { | |
4768 | pdu_length -= le32_to_cpu(shdr->NextCommand); | |
4769 | server->large_buf = next_is_large; | |
4770 | if (next_is_large) | |
3edeb4a4 | 4771 | server->bigbuf = buf = next_buffer; |
b24df3e3 | 4772 | else |
3edeb4a4 | 4773 | server->smallbuf = buf = next_buffer; |
b24df3e3 | 4774 | goto one_more; |
3edeb4a4 PS |
4775 | } else if (ret != 0) { |
4776 | /* | |
4777 | * ret != 0 here means that we didn't get to handle_mid() thus | |
4778 | * server->smallbuf and server->bigbuf are still valid. We need | |
4779 | * to free next_buffer because it is not going to be used | |
4780 | * anywhere. | |
4781 | */ | |
4782 | if (next_is_large) | |
4783 | free_rsp_buf(CIFS_LARGE_BUFFER, next_buffer); | |
4784 | else | |
4785 | free_rsp_buf(CIFS_SMALL_BUFFER, next_buffer); | |
b24df3e3 | 4786 | } |
4326ed2f | 4787 | |
b24df3e3 | 4788 | return ret; |
4326ed2f PS |
4789 | } |
4790 | ||
4791 | static int | |
b24df3e3 RS |
4792 | smb3_receive_transform(struct TCP_Server_Info *server, |
4793 | struct mid_q_entry **mids, char **bufs, int *num_mids) | |
4326ed2f PS |
4794 | { |
4795 | char *buf = server->smallbuf; | |
2e96467d | 4796 | unsigned int pdu_length = server->pdu_size; |
4326ed2f PS |
4797 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; |
4798 | unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
4799 | ||
1fc6ad2f | 4800 | if (pdu_length < sizeof(struct smb2_transform_hdr) + |
4326ed2f | 4801 | sizeof(struct smb2_sync_hdr)) { |
3175eb9b | 4802 | cifs_server_dbg(VFS, "Transform message is too small (%u)\n", |
4326ed2f PS |
4803 | pdu_length); |
4804 | cifs_reconnect(server); | |
4326ed2f PS |
4805 | return -ECONNABORTED; |
4806 | } | |
4807 | ||
1fc6ad2f | 4808 | if (pdu_length < orig_len + sizeof(struct smb2_transform_hdr)) { |
3175eb9b | 4809 | cifs_server_dbg(VFS, "Transform message is broken\n"); |
4326ed2f | 4810 | cifs_reconnect(server); |
4326ed2f PS |
4811 | return -ECONNABORTED; |
4812 | } | |
4813 | ||
b24df3e3 | 4814 | /* TODO: add support for compounds containing READ. */ |
6d2f84ee | 4815 | if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server)) { |
35cf94a3 | 4816 | return receive_encrypted_read(server, &mids[0], num_mids); |
6d2f84ee | 4817 | } |
4326ed2f | 4818 | |
b24df3e3 | 4819 | return receive_encrypted_standard(server, mids, bufs, num_mids); |
4326ed2f PS |
4820 | } |
4821 | ||
4822 | int | |
4823 | smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid) | |
4824 | { | |
4825 | char *buf = server->large_buf ? server->bigbuf : server->smallbuf; | |
4826 | ||
1fc6ad2f | 4827 | return handle_read_data(server, mid, buf, server->pdu_size, |
de9ac0a6 | 4828 | NULL, 0, 0, false); |
4326ed2f PS |
4829 | } |
4830 | ||
8ce79ec3 RS |
4831 | static int |
4832 | smb2_next_header(char *buf) | |
4833 | { | |
4834 | struct smb2_sync_hdr *hdr = (struct smb2_sync_hdr *)buf; | |
4835 | struct smb2_transform_hdr *t_hdr = (struct smb2_transform_hdr *)buf; | |
4836 | ||
4837 | if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) | |
4838 | return sizeof(struct smb2_transform_hdr) + | |
4839 | le32_to_cpu(t_hdr->OriginalMessageSize); | |
4840 | ||
4841 | return le32_to_cpu(hdr->NextCommand); | |
4842 | } | |
4843 | ||
c847dccf AA |
4844 | static int |
4845 | smb2_make_node(unsigned int xid, struct inode *inode, | |
4846 | struct dentry *dentry, struct cifs_tcon *tcon, | |
4847 | char *full_path, umode_t mode, dev_t dev) | |
4848 | { | |
4849 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
4850 | int rc = -EPERM; | |
c847dccf | 4851 | FILE_ALL_INFO *buf = NULL; |
7c06514a | 4852 | struct cifs_io_parms io_parms = {0}; |
c847dccf AA |
4853 | __u32 oplock = 0; |
4854 | struct cifs_fid fid; | |
4855 | struct cifs_open_parms oparms; | |
4856 | unsigned int bytes_written; | |
4857 | struct win_dev *pdev; | |
4858 | struct kvec iov[2]; | |
4859 | ||
4860 | /* | |
4861 | * Check if mounted with mount parm 'sfu' mount parm. | |
4862 | * SFU emulation should work with all servers, but only | |
4863 | * supports block and char device (no socket & fifo), | |
4864 | * and was used by default in earlier versions of Windows | |
4865 | */ | |
4866 | if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) | |
4867 | goto out; | |
4868 | ||
4869 | /* | |
4870 | * TODO: Add ability to create instead via reparse point. Windows (e.g. | |
4871 | * their current NFS server) uses this approach to expose special files | |
4872 | * over SMB2/SMB3 and Samba will do this with SMB3.1.1 POSIX Extensions | |
4873 | */ | |
4874 | ||
4875 | if (!S_ISCHR(mode) && !S_ISBLK(mode)) | |
4876 | goto out; | |
4877 | ||
4878 | cifs_dbg(FYI, "sfu compat create special file\n"); | |
4879 | ||
4880 | buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL); | |
4881 | if (buf == NULL) { | |
4882 | rc = -ENOMEM; | |
4883 | goto out; | |
4884 | } | |
4885 | ||
c847dccf AA |
4886 | oparms.tcon = tcon; |
4887 | oparms.cifs_sb = cifs_sb; | |
4888 | oparms.desired_access = GENERIC_WRITE; | |
0f060936 AG |
4889 | oparms.create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR | |
4890 | CREATE_OPTION_SPECIAL); | |
c847dccf AA |
4891 | oparms.disposition = FILE_CREATE; |
4892 | oparms.path = full_path; | |
4893 | oparms.fid = &fid; | |
4894 | oparms.reconnect = false; | |
4895 | ||
4896 | if (tcon->ses->server->oplocks) | |
4897 | oplock = REQ_OPLOCK; | |
4898 | else | |
4899 | oplock = 0; | |
4900 | rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, buf); | |
4901 | if (rc) | |
4902 | goto out; | |
4903 | ||
4904 | /* | |
4905 | * BB Do not bother to decode buf since no local inode yet to put | |
4906 | * timestamps in, but we can reuse it safely. | |
4907 | */ | |
4908 | ||
4909 | pdev = (struct win_dev *)buf; | |
4910 | io_parms.pid = current->tgid; | |
4911 | io_parms.tcon = tcon; | |
4912 | io_parms.offset = 0; | |
4913 | io_parms.length = sizeof(struct win_dev); | |
4914 | iov[1].iov_base = buf; | |
4915 | iov[1].iov_len = sizeof(struct win_dev); | |
4916 | if (S_ISCHR(mode)) { | |
4917 | memcpy(pdev->type, "IntxCHR", 8); | |
4918 | pdev->major = cpu_to_le64(MAJOR(dev)); | |
4919 | pdev->minor = cpu_to_le64(MINOR(dev)); | |
4920 | rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms, | |
4921 | &bytes_written, iov, 1); | |
4922 | } else if (S_ISBLK(mode)) { | |
4923 | memcpy(pdev->type, "IntxBLK", 8); | |
4924 | pdev->major = cpu_to_le64(MAJOR(dev)); | |
4925 | pdev->minor = cpu_to_le64(MINOR(dev)); | |
4926 | rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms, | |
4927 | &bytes_written, iov, 1); | |
4928 | } | |
4929 | tcon->ses->server->ops->close(xid, tcon, &fid); | |
4930 | d_drop(dentry); | |
4931 | ||
4932 | /* FIXME: add code here to set EAs */ | |
4933 | out: | |
4934 | kfree(buf); | |
4935 | return rc; | |
4936 | } | |
4937 | ||
4938 | ||
53ef1016 | 4939 | struct smb_version_operations smb20_operations = { |
027e8eec | 4940 | .compare_fids = smb2_compare_fids, |
2dc7e1c0 | 4941 | .setup_request = smb2_setup_request, |
c95b8eed | 4942 | .setup_async_request = smb2_setup_async_request, |
2dc7e1c0 | 4943 | .check_receive = smb2_check_receive, |
28ea5290 PS |
4944 | .add_credits = smb2_add_credits, |
4945 | .set_credits = smb2_set_credits, | |
4946 | .get_credits_field = smb2_get_credits_field, | |
4947 | .get_credits = smb2_get_credits, | |
cb7e9eab | 4948 | .wait_mtu_credits = cifs_wait_mtu_credits, |
2dc7e1c0 | 4949 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 4950 | .revert_current_mid = smb2_revert_current_mid, |
09a4707e PS |
4951 | .read_data_offset = smb2_read_data_offset, |
4952 | .read_data_length = smb2_read_data_length, | |
4953 | .map_error = map_smb2_to_linux_error, | |
093b2bda PS |
4954 | .find_mid = smb2_find_mid, |
4955 | .check_message = smb2_check_message, | |
4956 | .dump_detail = smb2_dump_detail, | |
d60622eb PS |
4957 | .clear_stats = smb2_clear_stats, |
4958 | .print_stats = smb2_print_stats, | |
983c88a4 | 4959 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 4960 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 4961 | .downgrade_oplock = smb2_downgrade_oplock, |
ec2e4523 PS |
4962 | .need_neg = smb2_need_neg, |
4963 | .negotiate = smb2_negotiate, | |
3a3bab50 PS |
4964 | .negotiate_wsize = smb2_negotiate_wsize, |
4965 | .negotiate_rsize = smb2_negotiate_rsize, | |
5478f9ba PS |
4966 | .sess_setup = SMB2_sess_setup, |
4967 | .logoff = SMB2_logoff, | |
faaf946a PS |
4968 | .tree_connect = SMB2_tcon, |
4969 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 4970 | .qfs_tcon = smb2_qfs_tcon, |
2503a0db | 4971 | .is_path_accessible = smb2_is_path_accessible, |
9094fad1 PS |
4972 | .can_echo = smb2_can_echo, |
4973 | .echo = SMB2_echo, | |
be4cb9e3 PS |
4974 | .query_path_info = smb2_query_path_info, |
4975 | .get_srv_inum = smb2_get_srv_inum, | |
b7546bc5 | 4976 | .query_file_info = smb2_query_file_info, |
c839ff24 PS |
4977 | .set_path_size = smb2_set_path_size, |
4978 | .set_file_size = smb2_set_file_size, | |
1feeaac7 | 4979 | .set_file_info = smb2_set_file_info, |
64a5cfa6 | 4980 | .set_compression = smb2_set_compression, |
a0e73183 PS |
4981 | .mkdir = smb2_mkdir, |
4982 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1a500f01 | 4983 | .rmdir = smb2_rmdir, |
cbe6f439 | 4984 | .unlink = smb2_unlink, |
35143eb5 | 4985 | .rename = smb2_rename_path, |
568798cc | 4986 | .create_hardlink = smb2_create_hardlink, |
b42bf888 | 4987 | .query_symlink = smb2_query_symlink, |
5b23c97d SP |
4988 | .query_mf_symlink = smb3_query_mf_symlink, |
4989 | .create_mf_symlink = smb3_create_mf_symlink, | |
f0df737e PS |
4990 | .open = smb2_open_file, |
4991 | .set_fid = smb2_set_fid, | |
4992 | .close = smb2_close_file, | |
7a5cfb19 | 4993 | .flush = smb2_flush_file, |
09a4707e | 4994 | .async_readv = smb2_async_readv, |
33319141 | 4995 | .async_writev = smb2_async_writev, |
d8e05039 | 4996 | .sync_read = smb2_sync_read, |
009d3443 | 4997 | .sync_write = smb2_sync_write, |
d324f08d PS |
4998 | .query_dir_first = smb2_query_dir_first, |
4999 | .query_dir_next = smb2_query_dir_next, | |
5000 | .close_dir = smb2_close_dir, | |
5001 | .calc_smb_size = smb2_calc_size, | |
2e44b288 | 5002 | .is_status_pending = smb2_is_status_pending, |
511c54a2 | 5003 | .is_session_expired = smb2_is_session_expired, |
983c88a4 | 5004 | .oplock_response = smb2_oplock_response, |
6fc05c25 | 5005 | .queryfs = smb2_queryfs, |
f7ba7fe6 PS |
5006 | .mand_lock = smb2_mand_lock, |
5007 | .mand_unlock_range = smb2_unlock_range, | |
b140799a | 5008 | .push_mand_locks = smb2_push_mandatory_locks, |
b8c32dbb PS |
5009 | .get_lease_key = smb2_get_lease_key, |
5010 | .set_lease_key = smb2_set_lease_key, | |
5011 | .new_lease_key = smb2_new_lease_key, | |
38107d45 | 5012 | .calc_signature = smb2_calc_signature, |
53ef1016 PS |
5013 | .is_read_op = smb2_is_read_op, |
5014 | .set_oplock_level = smb2_set_oplock_level, | |
a41a28bd | 5015 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 5016 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 5017 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 5018 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 5019 | .dir_needs_close = smb2_dir_needs_close, |
9d49640a | 5020 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5021 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5022 | #ifdef CONFIG_CIFS_XATTR |
5023 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5024 | .set_EA = smb2_set_ea, |
95907fea | 5025 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
5026 | .get_acl = get_smb2_acl, |
5027 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 5028 | .set_acl = set_smb2_acl, |
8ce79ec3 | 5029 | .next_header = smb2_next_header, |
f5b05d62 | 5030 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5031 | .make_node = smb2_make_node, |
2f3ebaba | 5032 | .fiemap = smb3_fiemap, |
dece44e3 | 5033 | .llseek = smb3_llseek, |
8e670f77 | 5034 | .is_status_io_timeout = smb2_is_status_io_timeout, |
38107d45 SF |
5035 | }; |
5036 | ||
53ef1016 PS |
5037 | struct smb_version_operations smb21_operations = { |
5038 | .compare_fids = smb2_compare_fids, | |
5039 | .setup_request = smb2_setup_request, | |
5040 | .setup_async_request = smb2_setup_async_request, | |
5041 | .check_receive = smb2_check_receive, | |
5042 | .add_credits = smb2_add_credits, | |
5043 | .set_credits = smb2_set_credits, | |
5044 | .get_credits_field = smb2_get_credits_field, | |
5045 | .get_credits = smb2_get_credits, | |
cb7e9eab | 5046 | .wait_mtu_credits = smb2_wait_mtu_credits, |
9a1c67e8 | 5047 | .adjust_credits = smb2_adjust_credits, |
53ef1016 | 5048 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 5049 | .revert_current_mid = smb2_revert_current_mid, |
53ef1016 PS |
5050 | .read_data_offset = smb2_read_data_offset, |
5051 | .read_data_length = smb2_read_data_length, | |
5052 | .map_error = map_smb2_to_linux_error, | |
5053 | .find_mid = smb2_find_mid, | |
5054 | .check_message = smb2_check_message, | |
5055 | .dump_detail = smb2_dump_detail, | |
5056 | .clear_stats = smb2_clear_stats, | |
5057 | .print_stats = smb2_print_stats, | |
5058 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 5059 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
9bd45408 | 5060 | .downgrade_oplock = smb2_downgrade_oplock, |
53ef1016 PS |
5061 | .need_neg = smb2_need_neg, |
5062 | .negotiate = smb2_negotiate, | |
5063 | .negotiate_wsize = smb2_negotiate_wsize, | |
5064 | .negotiate_rsize = smb2_negotiate_rsize, | |
5065 | .sess_setup = SMB2_sess_setup, | |
5066 | .logoff = SMB2_logoff, | |
5067 | .tree_connect = SMB2_tcon, | |
5068 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 5069 | .qfs_tcon = smb2_qfs_tcon, |
53ef1016 PS |
5070 | .is_path_accessible = smb2_is_path_accessible, |
5071 | .can_echo = smb2_can_echo, | |
5072 | .echo = SMB2_echo, | |
5073 | .query_path_info = smb2_query_path_info, | |
5074 | .get_srv_inum = smb2_get_srv_inum, | |
5075 | .query_file_info = smb2_query_file_info, | |
5076 | .set_path_size = smb2_set_path_size, | |
5077 | .set_file_size = smb2_set_file_size, | |
5078 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 5079 | .set_compression = smb2_set_compression, |
53ef1016 PS |
5080 | .mkdir = smb2_mkdir, |
5081 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
5082 | .rmdir = smb2_rmdir, | |
5083 | .unlink = smb2_unlink, | |
5084 | .rename = smb2_rename_path, | |
5085 | .create_hardlink = smb2_create_hardlink, | |
5086 | .query_symlink = smb2_query_symlink, | |
c22870ea | 5087 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 5088 | .create_mf_symlink = smb3_create_mf_symlink, |
53ef1016 PS |
5089 | .open = smb2_open_file, |
5090 | .set_fid = smb2_set_fid, | |
5091 | .close = smb2_close_file, | |
5092 | .flush = smb2_flush_file, | |
5093 | .async_readv = smb2_async_readv, | |
5094 | .async_writev = smb2_async_writev, | |
5095 | .sync_read = smb2_sync_read, | |
5096 | .sync_write = smb2_sync_write, | |
5097 | .query_dir_first = smb2_query_dir_first, | |
5098 | .query_dir_next = smb2_query_dir_next, | |
5099 | .close_dir = smb2_close_dir, | |
5100 | .calc_smb_size = smb2_calc_size, | |
5101 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 5102 | .is_session_expired = smb2_is_session_expired, |
53ef1016 PS |
5103 | .oplock_response = smb2_oplock_response, |
5104 | .queryfs = smb2_queryfs, | |
5105 | .mand_lock = smb2_mand_lock, | |
5106 | .mand_unlock_range = smb2_unlock_range, | |
5107 | .push_mand_locks = smb2_push_mandatory_locks, | |
5108 | .get_lease_key = smb2_get_lease_key, | |
5109 | .set_lease_key = smb2_set_lease_key, | |
5110 | .new_lease_key = smb2_new_lease_key, | |
5111 | .calc_signature = smb2_calc_signature, | |
5112 | .is_read_op = smb21_is_read_op, | |
5113 | .set_oplock_level = smb21_set_oplock_level, | |
a41a28bd | 5114 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 5115 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 5116 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 5117 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 5118 | .dir_needs_close = smb2_dir_needs_close, |
834170c8 | 5119 | .enum_snapshots = smb3_enum_snapshots, |
2c6251ad | 5120 | .notify = smb3_notify, |
9d49640a | 5121 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5122 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5123 | #ifdef CONFIG_CIFS_XATTR |
5124 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5125 | .set_EA = smb2_set_ea, |
95907fea | 5126 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
5127 | .get_acl = get_smb2_acl, |
5128 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 5129 | .set_acl = set_smb2_acl, |
8ce79ec3 | 5130 | .next_header = smb2_next_header, |
f5b05d62 | 5131 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5132 | .make_node = smb2_make_node, |
2f3ebaba | 5133 | .fiemap = smb3_fiemap, |
dece44e3 | 5134 | .llseek = smb3_llseek, |
8e670f77 | 5135 | .is_status_io_timeout = smb2_is_status_io_timeout, |
53ef1016 | 5136 | }; |
38107d45 SF |
5137 | |
5138 | struct smb_version_operations smb30_operations = { | |
5139 | .compare_fids = smb2_compare_fids, | |
5140 | .setup_request = smb2_setup_request, | |
5141 | .setup_async_request = smb2_setup_async_request, | |
5142 | .check_receive = smb2_check_receive, | |
5143 | .add_credits = smb2_add_credits, | |
5144 | .set_credits = smb2_set_credits, | |
5145 | .get_credits_field = smb2_get_credits_field, | |
5146 | .get_credits = smb2_get_credits, | |
cb7e9eab | 5147 | .wait_mtu_credits = smb2_wait_mtu_credits, |
9a1c67e8 | 5148 | .adjust_credits = smb2_adjust_credits, |
38107d45 | 5149 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 5150 | .revert_current_mid = smb2_revert_current_mid, |
38107d45 SF |
5151 | .read_data_offset = smb2_read_data_offset, |
5152 | .read_data_length = smb2_read_data_length, | |
5153 | .map_error = map_smb2_to_linux_error, | |
5154 | .find_mid = smb2_find_mid, | |
5155 | .check_message = smb2_check_message, | |
5156 | .dump_detail = smb2_dump_detail, | |
5157 | .clear_stats = smb2_clear_stats, | |
5158 | .print_stats = smb2_print_stats, | |
769ee6a4 | 5159 | .dump_share_caps = smb2_dump_share_caps, |
38107d45 | 5160 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 5161 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
9bd45408 | 5162 | .downgrade_oplock = smb3_downgrade_oplock, |
38107d45 SF |
5163 | .need_neg = smb2_need_neg, |
5164 | .negotiate = smb2_negotiate, | |
3d621230 SF |
5165 | .negotiate_wsize = smb3_negotiate_wsize, |
5166 | .negotiate_rsize = smb3_negotiate_rsize, | |
38107d45 SF |
5167 | .sess_setup = SMB2_sess_setup, |
5168 | .logoff = SMB2_logoff, | |
5169 | .tree_connect = SMB2_tcon, | |
5170 | .tree_disconnect = SMB2_tdis, | |
af6a12ea | 5171 | .qfs_tcon = smb3_qfs_tcon, |
38107d45 SF |
5172 | .is_path_accessible = smb2_is_path_accessible, |
5173 | .can_echo = smb2_can_echo, | |
5174 | .echo = SMB2_echo, | |
5175 | .query_path_info = smb2_query_path_info, | |
2e4564b3 SF |
5176 | /* WSL tags introduced long after smb2.1, enable for SMB3, 3.11 only */ |
5177 | .query_reparse_tag = smb2_query_reparse_tag, | |
38107d45 SF |
5178 | .get_srv_inum = smb2_get_srv_inum, |
5179 | .query_file_info = smb2_query_file_info, | |
5180 | .set_path_size = smb2_set_path_size, | |
5181 | .set_file_size = smb2_set_file_size, | |
5182 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 5183 | .set_compression = smb2_set_compression, |
38107d45 SF |
5184 | .mkdir = smb2_mkdir, |
5185 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
5186 | .rmdir = smb2_rmdir, | |
5187 | .unlink = smb2_unlink, | |
5188 | .rename = smb2_rename_path, | |
5189 | .create_hardlink = smb2_create_hardlink, | |
b42bf888 | 5190 | .query_symlink = smb2_query_symlink, |
c22870ea | 5191 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 5192 | .create_mf_symlink = smb3_create_mf_symlink, |
38107d45 SF |
5193 | .open = smb2_open_file, |
5194 | .set_fid = smb2_set_fid, | |
5195 | .close = smb2_close_file, | |
43f8a6a7 | 5196 | .close_getattr = smb2_close_getattr, |
38107d45 SF |
5197 | .flush = smb2_flush_file, |
5198 | .async_readv = smb2_async_readv, | |
5199 | .async_writev = smb2_async_writev, | |
5200 | .sync_read = smb2_sync_read, | |
5201 | .sync_write = smb2_sync_write, | |
5202 | .query_dir_first = smb2_query_dir_first, | |
5203 | .query_dir_next = smb2_query_dir_next, | |
5204 | .close_dir = smb2_close_dir, | |
5205 | .calc_smb_size = smb2_calc_size, | |
5206 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 5207 | .is_session_expired = smb2_is_session_expired, |
38107d45 SF |
5208 | .oplock_response = smb2_oplock_response, |
5209 | .queryfs = smb2_queryfs, | |
5210 | .mand_lock = smb2_mand_lock, | |
5211 | .mand_unlock_range = smb2_unlock_range, | |
5212 | .push_mand_locks = smb2_push_mandatory_locks, | |
5213 | .get_lease_key = smb2_get_lease_key, | |
5214 | .set_lease_key = smb2_set_lease_key, | |
5215 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 5216 | .generate_signingkey = generate_smb30signingkey, |
38107d45 | 5217 | .calc_signature = smb3_calc_signature, |
b3152e2c | 5218 | .set_integrity = smb3_set_integrity, |
53ef1016 | 5219 | .is_read_op = smb21_is_read_op, |
42873b0a | 5220 | .set_oplock_level = smb3_set_oplock_level, |
f047390a PS |
5221 | .create_lease_buf = smb3_create_lease_buf, |
5222 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 5223 | .copychunk_range = smb2_copychunk_range, |
ca9e7a1c | 5224 | .duplicate_extents = smb2_duplicate_extents, |
ff1c038a | 5225 | .validate_negotiate = smb3_validate_negotiate, |
7f6c5008 | 5226 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 5227 | .dir_needs_close = smb2_dir_needs_close, |
31742c5a | 5228 | .fallocate = smb3_fallocate, |
834170c8 | 5229 | .enum_snapshots = smb3_enum_snapshots, |
d26c2ddd | 5230 | .notify = smb3_notify, |
026e93dc | 5231 | .init_transform_rq = smb3_init_transform_rq, |
4326ed2f PS |
5232 | .is_transform_hdr = smb3_is_transform_hdr, |
5233 | .receive_transform = smb3_receive_transform, | |
9d49640a | 5234 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5235 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5236 | #ifdef CONFIG_CIFS_XATTR |
5237 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5238 | .set_EA = smb2_set_ea, |
95907fea | 5239 | #endif /* CIFS_XATTR */ |
2f1afe25 SP |
5240 | .get_acl = get_smb2_acl, |
5241 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
366ed846 | 5242 | .set_acl = set_smb2_acl, |
8ce79ec3 | 5243 | .next_header = smb2_next_header, |
f5b05d62 | 5244 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5245 | .make_node = smb2_make_node, |
2f3ebaba | 5246 | .fiemap = smb3_fiemap, |
dece44e3 | 5247 | .llseek = smb3_llseek, |
8e670f77 | 5248 | .is_status_io_timeout = smb2_is_status_io_timeout, |
1080ef75 SF |
5249 | }; |
5250 | ||
aab1893d SF |
5251 | struct smb_version_operations smb311_operations = { |
5252 | .compare_fids = smb2_compare_fids, | |
5253 | .setup_request = smb2_setup_request, | |
5254 | .setup_async_request = smb2_setup_async_request, | |
5255 | .check_receive = smb2_check_receive, | |
5256 | .add_credits = smb2_add_credits, | |
5257 | .set_credits = smb2_set_credits, | |
5258 | .get_credits_field = smb2_get_credits_field, | |
5259 | .get_credits = smb2_get_credits, | |
5260 | .wait_mtu_credits = smb2_wait_mtu_credits, | |
9a1c67e8 | 5261 | .adjust_credits = smb2_adjust_credits, |
aab1893d | 5262 | .get_next_mid = smb2_get_next_mid, |
c781af7e | 5263 | .revert_current_mid = smb2_revert_current_mid, |
aab1893d SF |
5264 | .read_data_offset = smb2_read_data_offset, |
5265 | .read_data_length = smb2_read_data_length, | |
5266 | .map_error = map_smb2_to_linux_error, | |
5267 | .find_mid = smb2_find_mid, | |
5268 | .check_message = smb2_check_message, | |
5269 | .dump_detail = smb2_dump_detail, | |
5270 | .clear_stats = smb2_clear_stats, | |
5271 | .print_stats = smb2_print_stats, | |
5272 | .dump_share_caps = smb2_dump_share_caps, | |
5273 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 5274 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
9bd45408 | 5275 | .downgrade_oplock = smb3_downgrade_oplock, |
aab1893d SF |
5276 | .need_neg = smb2_need_neg, |
5277 | .negotiate = smb2_negotiate, | |
3d621230 SF |
5278 | .negotiate_wsize = smb3_negotiate_wsize, |
5279 | .negotiate_rsize = smb3_negotiate_rsize, | |
aab1893d SF |
5280 | .sess_setup = SMB2_sess_setup, |
5281 | .logoff = SMB2_logoff, | |
5282 | .tree_connect = SMB2_tcon, | |
5283 | .tree_disconnect = SMB2_tdis, | |
5284 | .qfs_tcon = smb3_qfs_tcon, | |
5285 | .is_path_accessible = smb2_is_path_accessible, | |
5286 | .can_echo = smb2_can_echo, | |
5287 | .echo = SMB2_echo, | |
5288 | .query_path_info = smb2_query_path_info, | |
2e4564b3 | 5289 | .query_reparse_tag = smb2_query_reparse_tag, |
aab1893d SF |
5290 | .get_srv_inum = smb2_get_srv_inum, |
5291 | .query_file_info = smb2_query_file_info, | |
5292 | .set_path_size = smb2_set_path_size, | |
5293 | .set_file_size = smb2_set_file_size, | |
5294 | .set_file_info = smb2_set_file_info, | |
5295 | .set_compression = smb2_set_compression, | |
5296 | .mkdir = smb2_mkdir, | |
5297 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
bea851b8 | 5298 | .posix_mkdir = smb311_posix_mkdir, |
aab1893d SF |
5299 | .rmdir = smb2_rmdir, |
5300 | .unlink = smb2_unlink, | |
5301 | .rename = smb2_rename_path, | |
5302 | .create_hardlink = smb2_create_hardlink, | |
5303 | .query_symlink = smb2_query_symlink, | |
5304 | .query_mf_symlink = smb3_query_mf_symlink, | |
5305 | .create_mf_symlink = smb3_create_mf_symlink, | |
5306 | .open = smb2_open_file, | |
5307 | .set_fid = smb2_set_fid, | |
5308 | .close = smb2_close_file, | |
43f8a6a7 | 5309 | .close_getattr = smb2_close_getattr, |
aab1893d SF |
5310 | .flush = smb2_flush_file, |
5311 | .async_readv = smb2_async_readv, | |
5312 | .async_writev = smb2_async_writev, | |
5313 | .sync_read = smb2_sync_read, | |
5314 | .sync_write = smb2_sync_write, | |
5315 | .query_dir_first = smb2_query_dir_first, | |
5316 | .query_dir_next = smb2_query_dir_next, | |
5317 | .close_dir = smb2_close_dir, | |
5318 | .calc_smb_size = smb2_calc_size, | |
5319 | .is_status_pending = smb2_is_status_pending, | |
511c54a2 | 5320 | .is_session_expired = smb2_is_session_expired, |
aab1893d | 5321 | .oplock_response = smb2_oplock_response, |
2d304217 | 5322 | .queryfs = smb311_queryfs, |
aab1893d SF |
5323 | .mand_lock = smb2_mand_lock, |
5324 | .mand_unlock_range = smb2_unlock_range, | |
5325 | .push_mand_locks = smb2_push_mandatory_locks, | |
5326 | .get_lease_key = smb2_get_lease_key, | |
5327 | .set_lease_key = smb2_set_lease_key, | |
5328 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 5329 | .generate_signingkey = generate_smb311signingkey, |
aab1893d | 5330 | .calc_signature = smb3_calc_signature, |
b3152e2c | 5331 | .set_integrity = smb3_set_integrity, |
aab1893d SF |
5332 | .is_read_op = smb21_is_read_op, |
5333 | .set_oplock_level = smb3_set_oplock_level, | |
5334 | .create_lease_buf = smb3_create_lease_buf, | |
5335 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 5336 | .copychunk_range = smb2_copychunk_range, |
02b16665 | 5337 | .duplicate_extents = smb2_duplicate_extents, |
aab1893d SF |
5338 | /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */ |
5339 | .wp_retry_size = smb2_wp_retry_size, | |
5340 | .dir_needs_close = smb2_dir_needs_close, | |
5341 | .fallocate = smb3_fallocate, | |
834170c8 | 5342 | .enum_snapshots = smb3_enum_snapshots, |
d26c2ddd | 5343 | .notify = smb3_notify, |
026e93dc | 5344 | .init_transform_rq = smb3_init_transform_rq, |
4326ed2f PS |
5345 | .is_transform_hdr = smb3_is_transform_hdr, |
5346 | .receive_transform = smb3_receive_transform, | |
9d49640a | 5347 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 5348 | .select_sectype = smb2_select_sectype, |
95907fea RS |
5349 | #ifdef CONFIG_CIFS_XATTR |
5350 | .query_all_EAs = smb2_query_eas, | |
5517554e | 5351 | .set_EA = smb2_set_ea, |
95907fea | 5352 | #endif /* CIFS_XATTR */ |
c1777df1 RS |
5353 | .get_acl = get_smb2_acl, |
5354 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
5355 | .set_acl = set_smb2_acl, | |
8ce79ec3 | 5356 | .next_header = smb2_next_header, |
f5b05d62 | 5357 | .ioctl_query_info = smb2_ioctl_query_info, |
c847dccf | 5358 | .make_node = smb2_make_node, |
2f3ebaba | 5359 | .fiemap = smb3_fiemap, |
dece44e3 | 5360 | .llseek = smb3_llseek, |
8e670f77 | 5361 | .is_status_io_timeout = smb2_is_status_io_timeout, |
aab1893d | 5362 | }; |
aab1893d | 5363 | |
dd446b16 SF |
5364 | struct smb_version_values smb20_values = { |
5365 | .version_string = SMB20_VERSION_STRING, | |
5366 | .protocol_id = SMB20_PROT_ID, | |
5367 | .req_capabilities = 0, /* MBZ */ | |
5368 | .large_lock_type = 0, | |
5369 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
5370 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
5371 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
5372 | .header_size = sizeof(struct smb2_sync_hdr), |
5373 | .header_preamble_size = 0, | |
dd446b16 SF |
5374 | .max_header_size = MAX_SMB2_HDR_SIZE, |
5375 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
5376 | .lock_cmd = SMB2_LOCK, | |
5377 | .cap_unix = 0, | |
5378 | .cap_nt_find = SMB2_NT_FIND, | |
5379 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5380 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5381 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 5382 | .create_lease_size = sizeof(struct create_lease), |
dd446b16 SF |
5383 | }; |
5384 | ||
1080ef75 SF |
5385 | struct smb_version_values smb21_values = { |
5386 | .version_string = SMB21_VERSION_STRING, | |
e4aa25e7 SF |
5387 | .protocol_id = SMB21_PROT_ID, |
5388 | .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */ | |
5389 | .large_lock_type = 0, | |
5390 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
5391 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
5392 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
5393 | .header_size = sizeof(struct smb2_sync_hdr), |
5394 | .header_preamble_size = 0, | |
e4aa25e7 SF |
5395 | .max_header_size = MAX_SMB2_HDR_SIZE, |
5396 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
5397 | .lock_cmd = SMB2_LOCK, | |
5398 | .cap_unix = 0, | |
5399 | .cap_nt_find = SMB2_NT_FIND, | |
5400 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5401 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5402 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 5403 | .create_lease_size = sizeof(struct create_lease), |
e4aa25e7 SF |
5404 | }; |
5405 | ||
9764c02f SF |
5406 | struct smb_version_values smb3any_values = { |
5407 | .version_string = SMB3ANY_VERSION_STRING, | |
5408 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
f8015683 | 5409 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
9764c02f SF |
5410 | .large_lock_type = 0, |
5411 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
5412 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
5413 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
5414 | .header_size = sizeof(struct smb2_sync_hdr), |
5415 | .header_preamble_size = 0, | |
9764c02f SF |
5416 | .max_header_size = MAX_SMB2_HDR_SIZE, |
5417 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
5418 | .lock_cmd = SMB2_LOCK, | |
5419 | .cap_unix = 0, | |
5420 | .cap_nt_find = SMB2_NT_FIND, | |
5421 | .cap_large_files = SMB2_LARGE_FILES, | |
5422 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5423 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5424 | .create_lease_size = sizeof(struct create_lease_v2), | |
5425 | }; | |
5426 | ||
5427 | struct smb_version_values smbdefault_values = { | |
5428 | .version_string = SMBDEFAULT_VERSION_STRING, | |
5429 | .protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */ | |
f8015683 | 5430 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
9764c02f SF |
5431 | .large_lock_type = 0, |
5432 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
5433 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
5434 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
5435 | .header_size = sizeof(struct smb2_sync_hdr), |
5436 | .header_preamble_size = 0, | |
9764c02f SF |
5437 | .max_header_size = MAX_SMB2_HDR_SIZE, |
5438 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
5439 | .lock_cmd = SMB2_LOCK, | |
5440 | .cap_unix = 0, | |
5441 | .cap_nt_find = SMB2_NT_FIND, | |
5442 | .cap_large_files = SMB2_LARGE_FILES, | |
5443 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5444 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5445 | .create_lease_size = sizeof(struct create_lease_v2), | |
5446 | }; | |
5447 | ||
e4aa25e7 SF |
5448 | struct smb_version_values smb30_values = { |
5449 | .version_string = SMB30_VERSION_STRING, | |
5450 | .protocol_id = SMB30_PROT_ID, | |
f8015683 | 5451 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
027e8eec PS |
5452 | .large_lock_type = 0, |
5453 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
5454 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
5455 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
5456 | .header_size = sizeof(struct smb2_sync_hdr), |
5457 | .header_preamble_size = 0, | |
093b2bda | 5458 | .max_header_size = MAX_SMB2_HDR_SIZE, |
09a4707e | 5459 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, |
2dc7e1c0 | 5460 | .lock_cmd = SMB2_LOCK, |
29e20f9c PS |
5461 | .cap_unix = 0, |
5462 | .cap_nt_find = SMB2_NT_FIND, | |
5463 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5464 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5465 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 5466 | .create_lease_size = sizeof(struct create_lease_v2), |
1080ef75 | 5467 | }; |
20b6d8b4 SF |
5468 | |
5469 | struct smb_version_values smb302_values = { | |
5470 | .version_string = SMB302_VERSION_STRING, | |
5471 | .protocol_id = SMB302_PROT_ID, | |
f8015683 | 5472 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
20b6d8b4 SF |
5473 | .large_lock_type = 0, |
5474 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
5475 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
5476 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
5477 | .header_size = sizeof(struct smb2_sync_hdr), |
5478 | .header_preamble_size = 0, | |
20b6d8b4 SF |
5479 | .max_header_size = MAX_SMB2_HDR_SIZE, |
5480 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
5481 | .lock_cmd = SMB2_LOCK, | |
5482 | .cap_unix = 0, | |
5483 | .cap_nt_find = SMB2_NT_FIND, | |
5484 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
5485 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
5486 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 5487 | .create_lease_size = sizeof(struct create_lease_v2), |
20b6d8b4 | 5488 | }; |
5f7fbf73 | 5489 | |
5f7fbf73 SF |
5490 | struct smb_version_values smb311_values = { |
5491 | .version_string = SMB311_VERSION_STRING, | |
5492 | .protocol_id = SMB311_PROT_ID, | |
f8015683 | 5493 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION | SMB2_GLOBAL_CAP_DIRECTORY_LEASING, |
5f7fbf73 SF |
5494 | .large_lock_type = 0, |
5495 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
5496 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
5497 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
977b6170 RS |
5498 | .header_size = sizeof(struct smb2_sync_hdr), |
5499 | .header_preamble_size = 0, | |
5f7fbf73 SF |
5500 | .max_header_size = MAX_SMB2_HDR_SIZE, |
5501 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
5502 | .lock_cmd = SMB2_LOCK, | |
5503 | .cap_unix = 0, | |
5504 | .cap_nt_find = SMB2_NT_FIND, | |
5505 | .cap_large_files = SMB2_LARGE_FILES, | |
5506 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5507 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
5508 | .create_lease_size = sizeof(struct create_lease_v2), | |
5509 | }; |