]>
Commit | Line | Data |
---|---|---|
1080ef75 SF |
1 | /* |
2 | * SMB2 version specific operations | |
3 | * | |
4 | * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License v2 as published | |
8 | * by the Free Software Foundation. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
13 | * the GNU Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public License | |
16 | * along with this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
3a3bab50 | 20 | #include <linux/pagemap.h> |
6fc05c25 | 21 | #include <linux/vfs.h> |
f29ebb47 | 22 | #include <linux/falloc.h> |
026e93dc | 23 | #include <linux/scatterlist.h> |
4fa8e504 | 24 | #include <linux/uuid.h> |
026e93dc | 25 | #include <crypto/aead.h> |
1080ef75 | 26 | #include "cifsglob.h" |
2dc7e1c0 PS |
27 | #include "smb2pdu.h" |
28 | #include "smb2proto.h" | |
28ea5290 PS |
29 | #include "cifsproto.h" |
30 | #include "cifs_debug.h" | |
b42bf888 | 31 | #include "cifs_unicode.h" |
2e44b288 | 32 | #include "smb2status.h" |
6fc05c25 | 33 | #include "smb2glob.h" |
834170c8 | 34 | #include "cifs_ioctl.h" |
28ea5290 PS |
35 | |
36 | static int | |
37 | change_conf(struct TCP_Server_Info *server) | |
38 | { | |
39 | server->credits += server->echo_credits + server->oplock_credits; | |
40 | server->oplock_credits = server->echo_credits = 0; | |
41 | switch (server->credits) { | |
42 | case 0: | |
43 | return -1; | |
44 | case 1: | |
45 | server->echoes = false; | |
46 | server->oplocks = false; | |
f96637be | 47 | cifs_dbg(VFS, "disabling echoes and oplocks\n"); |
28ea5290 PS |
48 | break; |
49 | case 2: | |
50 | server->echoes = true; | |
51 | server->oplocks = false; | |
52 | server->echo_credits = 1; | |
f96637be | 53 | cifs_dbg(FYI, "disabling oplocks\n"); |
28ea5290 PS |
54 | break; |
55 | default: | |
56 | server->echoes = true; | |
e0ddde9d SF |
57 | if (enable_oplocks) { |
58 | server->oplocks = true; | |
59 | server->oplock_credits = 1; | |
60 | } else | |
61 | server->oplocks = false; | |
62 | ||
28ea5290 | 63 | server->echo_credits = 1; |
28ea5290 PS |
64 | } |
65 | server->credits -= server->echo_credits + server->oplock_credits; | |
66 | return 0; | |
67 | } | |
68 | ||
69 | static void | |
70 | smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add, | |
71 | const int optype) | |
72 | { | |
73 | int *val, rc = 0; | |
74 | spin_lock(&server->req_lock); | |
75 | val = server->ops->get_credits_field(server, optype); | |
76 | *val += add; | |
141891f4 SF |
77 | if (*val > 65000) { |
78 | *val = 65000; /* Don't get near 64K credits, avoid srv bugs */ | |
79 | printk_once(KERN_WARNING "server overflowed SMB3 credits\n"); | |
80 | } | |
28ea5290 | 81 | server->in_flight--; |
ec2e4523 | 82 | if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP) |
28ea5290 | 83 | rc = change_conf(server); |
983c88a4 PS |
84 | /* |
85 | * Sometimes server returns 0 credits on oplock break ack - we need to | |
86 | * rebalance credits in this case. | |
87 | */ | |
88 | else if (server->in_flight > 0 && server->oplock_credits == 0 && | |
89 | server->oplocks) { | |
90 | if (server->credits > 1) { | |
91 | server->credits--; | |
92 | server->oplock_credits++; | |
93 | } | |
94 | } | |
28ea5290 PS |
95 | spin_unlock(&server->req_lock); |
96 | wake_up(&server->request_q); | |
97 | if (rc) | |
98 | cifs_reconnect(server); | |
99 | } | |
100 | ||
101 | static void | |
102 | smb2_set_credits(struct TCP_Server_Info *server, const int val) | |
103 | { | |
104 | spin_lock(&server->req_lock); | |
105 | server->credits = val; | |
106 | spin_unlock(&server->req_lock); | |
107 | } | |
108 | ||
109 | static int * | |
110 | smb2_get_credits_field(struct TCP_Server_Info *server, const int optype) | |
111 | { | |
112 | switch (optype) { | |
113 | case CIFS_ECHO_OP: | |
114 | return &server->echo_credits; | |
115 | case CIFS_OBREAK_OP: | |
116 | return &server->oplock_credits; | |
117 | default: | |
118 | return &server->credits; | |
119 | } | |
120 | } | |
121 | ||
122 | static unsigned int | |
123 | smb2_get_credits(struct mid_q_entry *mid) | |
124 | { | |
31473fc4 PS |
125 | struct smb2_sync_hdr *shdr = get_sync_hdr(mid->resp_buf); |
126 | ||
127 | return le16_to_cpu(shdr->CreditRequest); | |
28ea5290 | 128 | } |
2dc7e1c0 | 129 | |
cb7e9eab PS |
130 | static int |
131 | smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size, | |
132 | unsigned int *num, unsigned int *credits) | |
133 | { | |
134 | int rc = 0; | |
135 | unsigned int scredits; | |
136 | ||
137 | spin_lock(&server->req_lock); | |
138 | while (1) { | |
139 | if (server->credits <= 0) { | |
140 | spin_unlock(&server->req_lock); | |
141 | cifs_num_waiters_inc(server); | |
142 | rc = wait_event_killable(server->request_q, | |
143 | has_credits(server, &server->credits)); | |
144 | cifs_num_waiters_dec(server); | |
145 | if (rc) | |
146 | return rc; | |
147 | spin_lock(&server->req_lock); | |
148 | } else { | |
149 | if (server->tcpStatus == CifsExiting) { | |
150 | spin_unlock(&server->req_lock); | |
151 | return -ENOENT; | |
152 | } | |
153 | ||
154 | scredits = server->credits; | |
155 | /* can deadlock with reopen */ | |
156 | if (scredits == 1) { | |
157 | *num = SMB2_MAX_BUFFER_SIZE; | |
158 | *credits = 0; | |
159 | break; | |
160 | } | |
161 | ||
162 | /* leave one credit for a possible reopen */ | |
163 | scredits--; | |
164 | *num = min_t(unsigned int, size, | |
165 | scredits * SMB2_MAX_BUFFER_SIZE); | |
166 | ||
167 | *credits = DIV_ROUND_UP(*num, SMB2_MAX_BUFFER_SIZE); | |
168 | server->credits -= *credits; | |
169 | server->in_flight++; | |
170 | break; | |
171 | } | |
172 | } | |
173 | spin_unlock(&server->req_lock); | |
174 | return rc; | |
175 | } | |
176 | ||
2dc7e1c0 PS |
177 | static __u64 |
178 | smb2_get_next_mid(struct TCP_Server_Info *server) | |
179 | { | |
180 | __u64 mid; | |
181 | /* for SMB2 we need the current value */ | |
182 | spin_lock(&GlobalMid_Lock); | |
183 | mid = server->CurrentMid++; | |
184 | spin_unlock(&GlobalMid_Lock); | |
185 | return mid; | |
186 | } | |
1080ef75 | 187 | |
093b2bda PS |
188 | static struct mid_q_entry * |
189 | smb2_find_mid(struct TCP_Server_Info *server, char *buf) | |
190 | { | |
191 | struct mid_q_entry *mid; | |
31473fc4 PS |
192 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); |
193 | __u64 wire_mid = le64_to_cpu(shdr->MessageId); | |
093b2bda | 194 | |
31473fc4 | 195 | if (shdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM) { |
373512ec SF |
196 | cifs_dbg(VFS, "encrypted frame parsing not supported yet"); |
197 | return NULL; | |
198 | } | |
199 | ||
093b2bda PS |
200 | spin_lock(&GlobalMid_Lock); |
201 | list_for_each_entry(mid, &server->pending_mid_q, qhead) { | |
9235d098 | 202 | if ((mid->mid == wire_mid) && |
093b2bda | 203 | (mid->mid_state == MID_REQUEST_SUBMITTED) && |
31473fc4 | 204 | (mid->command == shdr->Command)) { |
093b2bda PS |
205 | spin_unlock(&GlobalMid_Lock); |
206 | return mid; | |
207 | } | |
208 | } | |
209 | spin_unlock(&GlobalMid_Lock); | |
210 | return NULL; | |
211 | } | |
212 | ||
213 | static void | |
214 | smb2_dump_detail(void *buf) | |
215 | { | |
216 | #ifdef CONFIG_CIFS_DEBUG2 | |
31473fc4 | 217 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); |
093b2bda | 218 | |
f96637be | 219 | cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n", |
31473fc4 PS |
220 | shdr->Command, shdr->Status, shdr->Flags, shdr->MessageId, |
221 | shdr->ProcessId); | |
222 | cifs_dbg(VFS, "smb buf %p len %u\n", buf, smb2_calc_size(buf)); | |
093b2bda PS |
223 | #endif |
224 | } | |
225 | ||
ec2e4523 PS |
226 | static bool |
227 | smb2_need_neg(struct TCP_Server_Info *server) | |
228 | { | |
229 | return server->max_read == 0; | |
230 | } | |
231 | ||
232 | static int | |
233 | smb2_negotiate(const unsigned int xid, struct cifs_ses *ses) | |
234 | { | |
235 | int rc; | |
236 | ses->server->CurrentMid = 0; | |
237 | rc = SMB2_negotiate(xid, ses); | |
238 | /* BB we probably don't need to retry with modern servers */ | |
239 | if (rc == -EAGAIN) | |
240 | rc = -EHOSTDOWN; | |
241 | return rc; | |
242 | } | |
243 | ||
3a3bab50 PS |
244 | static unsigned int |
245 | smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
246 | { | |
247 | struct TCP_Server_Info *server = tcon->ses->server; | |
248 | unsigned int wsize; | |
249 | ||
250 | /* start with specified wsize, or default */ | |
251 | wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE; | |
252 | wsize = min_t(unsigned int, wsize, server->max_write); | |
cb7e9eab PS |
253 | |
254 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
255 | wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 256 | |
3a3bab50 PS |
257 | return wsize; |
258 | } | |
259 | ||
260 | static unsigned int | |
261 | smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
262 | { | |
263 | struct TCP_Server_Info *server = tcon->ses->server; | |
264 | unsigned int rsize; | |
265 | ||
266 | /* start with specified rsize, or default */ | |
267 | rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE; | |
268 | rsize = min_t(unsigned int, rsize, server->max_read); | |
bed9da02 PS |
269 | |
270 | if (!(server->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU)) | |
271 | rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); | |
3a3bab50 | 272 | |
3a3bab50 PS |
273 | return rsize; |
274 | } | |
275 | ||
c481e9fe SF |
276 | #ifdef CONFIG_CIFS_STATS2 |
277 | static int | |
278 | SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon) | |
279 | { | |
280 | int rc; | |
281 | unsigned int ret_data_len = 0; | |
282 | struct network_interface_info_ioctl_rsp *out_buf; | |
283 | ||
284 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
285 | FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */, | |
51146625 | 286 | false /* use_ipc */, |
c481e9fe SF |
287 | NULL /* no data input */, 0 /* no data input */, |
288 | (char **)&out_buf, &ret_data_len); | |
9ffc5412 SF |
289 | if (rc != 0) |
290 | cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc); | |
291 | else if (ret_data_len < sizeof(struct network_interface_info_ioctl_rsp)) { | |
292 | cifs_dbg(VFS, "server returned bad net interface info buf\n"); | |
293 | rc = -EINVAL; | |
294 | } else { | |
c481e9fe SF |
295 | /* Dump info on first interface */ |
296 | cifs_dbg(FYI, "Adapter Capability 0x%x\t", | |
297 | le32_to_cpu(out_buf->Capability)); | |
298 | cifs_dbg(FYI, "Link Speed %lld\n", | |
299 | le64_to_cpu(out_buf->LinkSpeed)); | |
9ffc5412 | 300 | } |
24df1483 | 301 | kfree(out_buf); |
c481e9fe SF |
302 | return rc; |
303 | } | |
304 | #endif /* STATS2 */ | |
305 | ||
af6a12ea SF |
306 | static void |
307 | smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
308 | { | |
309 | int rc; | |
310 | __le16 srch_path = 0; /* Null - open root of share */ | |
311 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
312 | struct cifs_open_parms oparms; | |
313 | struct cifs_fid fid; | |
314 | ||
315 | oparms.tcon = tcon; | |
316 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
317 | oparms.disposition = FILE_OPEN; | |
318 | oparms.create_options = 0; | |
319 | oparms.fid = &fid; | |
320 | oparms.reconnect = false; | |
321 | ||
322 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); | |
323 | if (rc) | |
324 | return; | |
325 | ||
c481e9fe SF |
326 | #ifdef CONFIG_CIFS_STATS2 |
327 | SMB3_request_interfaces(xid, tcon); | |
328 | #endif /* STATS2 */ | |
329 | ||
af6a12ea SF |
330 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
331 | FS_ATTRIBUTE_INFORMATION); | |
332 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
333 | FS_DEVICE_INFORMATION); | |
334 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
335 | FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */ | |
336 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
337 | return; | |
338 | } | |
339 | ||
34f62640 SF |
340 | static void |
341 | smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
342 | { | |
343 | int rc; | |
344 | __le16 srch_path = 0; /* Null - open root of share */ | |
345 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
346 | struct cifs_open_parms oparms; | |
347 | struct cifs_fid fid; | |
348 | ||
349 | oparms.tcon = tcon; | |
350 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
351 | oparms.disposition = FILE_OPEN; | |
352 | oparms.create_options = 0; | |
353 | oparms.fid = &fid; | |
354 | oparms.reconnect = false; | |
355 | ||
356 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); | |
357 | if (rc) | |
358 | return; | |
359 | ||
2167114c SF |
360 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
361 | FS_ATTRIBUTE_INFORMATION); | |
362 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
363 | FS_DEVICE_INFORMATION); | |
34f62640 SF |
364 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
365 | return; | |
366 | } | |
367 | ||
2503a0db PS |
368 | static int |
369 | smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, | |
370 | struct cifs_sb_info *cifs_sb, const char *full_path) | |
371 | { | |
372 | int rc; | |
2503a0db | 373 | __le16 *utf16_path; |
2e44b288 | 374 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
375 | struct cifs_open_parms oparms; |
376 | struct cifs_fid fid; | |
2503a0db PS |
377 | |
378 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
379 | if (!utf16_path) | |
380 | return -ENOMEM; | |
381 | ||
064f6047 PS |
382 | oparms.tcon = tcon; |
383 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
384 | oparms.disposition = FILE_OPEN; | |
385 | oparms.create_options = 0; | |
386 | oparms.fid = &fid; | |
9cbc0b73 | 387 | oparms.reconnect = false; |
064f6047 | 388 | |
b42bf888 | 389 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); |
2503a0db PS |
390 | if (rc) { |
391 | kfree(utf16_path); | |
392 | return rc; | |
393 | } | |
394 | ||
064f6047 | 395 | rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
2503a0db PS |
396 | kfree(utf16_path); |
397 | return rc; | |
398 | } | |
399 | ||
be4cb9e3 PS |
400 | static int |
401 | smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, | |
402 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
403 | u64 *uniqueid, FILE_ALL_INFO *data) | |
404 | { | |
405 | *uniqueid = le64_to_cpu(data->IndexNumber); | |
406 | return 0; | |
407 | } | |
408 | ||
b7546bc5 PS |
409 | static int |
410 | smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, | |
411 | struct cifs_fid *fid, FILE_ALL_INFO *data) | |
412 | { | |
413 | int rc; | |
414 | struct smb2_file_all_info *smb2_data; | |
415 | ||
1bbe4997 | 416 | smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2, |
b7546bc5 PS |
417 | GFP_KERNEL); |
418 | if (smb2_data == NULL) | |
419 | return -ENOMEM; | |
420 | ||
421 | rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid, | |
422 | smb2_data); | |
423 | if (!rc) | |
424 | move_smb2_info_to_cifs(data, smb2_data); | |
425 | kfree(smb2_data); | |
426 | return rc; | |
427 | } | |
428 | ||
9094fad1 PS |
429 | static bool |
430 | smb2_can_echo(struct TCP_Server_Info *server) | |
431 | { | |
432 | return server->echoes; | |
433 | } | |
434 | ||
d60622eb PS |
435 | static void |
436 | smb2_clear_stats(struct cifs_tcon *tcon) | |
437 | { | |
438 | #ifdef CONFIG_CIFS_STATS | |
439 | int i; | |
440 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { | |
441 | atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0); | |
442 | atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0); | |
443 | } | |
444 | #endif | |
445 | } | |
446 | ||
769ee6a4 SF |
447 | static void |
448 | smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon) | |
449 | { | |
450 | seq_puts(m, "\n\tShare Capabilities:"); | |
451 | if (tcon->capabilities & SMB2_SHARE_CAP_DFS) | |
452 | seq_puts(m, " DFS,"); | |
453 | if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY) | |
454 | seq_puts(m, " CONTINUOUS AVAILABILITY,"); | |
455 | if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT) | |
456 | seq_puts(m, " SCALEOUT,"); | |
457 | if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER) | |
458 | seq_puts(m, " CLUSTER,"); | |
459 | if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC) | |
460 | seq_puts(m, " ASYMMETRIC,"); | |
461 | if (tcon->capabilities == 0) | |
462 | seq_puts(m, " None"); | |
af6a12ea SF |
463 | if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE) |
464 | seq_puts(m, " Aligned,"); | |
465 | if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE) | |
466 | seq_puts(m, " Partition Aligned,"); | |
467 | if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY) | |
468 | seq_puts(m, " SSD,"); | |
469 | if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED) | |
470 | seq_puts(m, " TRIM-support,"); | |
471 | ||
769ee6a4 | 472 | seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags); |
af6a12ea SF |
473 | if (tcon->perf_sector_size) |
474 | seq_printf(m, "\tOptimal sector size: 0x%x", | |
475 | tcon->perf_sector_size); | |
769ee6a4 SF |
476 | } |
477 | ||
d60622eb PS |
478 | static void |
479 | smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon) | |
480 | { | |
481 | #ifdef CONFIG_CIFS_STATS | |
482 | atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent; | |
483 | atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed; | |
484 | seq_printf(m, "\nNegotiates: %d sent %d failed", | |
485 | atomic_read(&sent[SMB2_NEGOTIATE_HE]), | |
486 | atomic_read(&failed[SMB2_NEGOTIATE_HE])); | |
487 | seq_printf(m, "\nSessionSetups: %d sent %d failed", | |
488 | atomic_read(&sent[SMB2_SESSION_SETUP_HE]), | |
489 | atomic_read(&failed[SMB2_SESSION_SETUP_HE])); | |
d60622eb PS |
490 | seq_printf(m, "\nLogoffs: %d sent %d failed", |
491 | atomic_read(&sent[SMB2_LOGOFF_HE]), | |
492 | atomic_read(&failed[SMB2_LOGOFF_HE])); | |
493 | seq_printf(m, "\nTreeConnects: %d sent %d failed", | |
494 | atomic_read(&sent[SMB2_TREE_CONNECT_HE]), | |
495 | atomic_read(&failed[SMB2_TREE_CONNECT_HE])); | |
496 | seq_printf(m, "\nTreeDisconnects: %d sent %d failed", | |
497 | atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]), | |
498 | atomic_read(&failed[SMB2_TREE_DISCONNECT_HE])); | |
499 | seq_printf(m, "\nCreates: %d sent %d failed", | |
500 | atomic_read(&sent[SMB2_CREATE_HE]), | |
501 | atomic_read(&failed[SMB2_CREATE_HE])); | |
502 | seq_printf(m, "\nCloses: %d sent %d failed", | |
503 | atomic_read(&sent[SMB2_CLOSE_HE]), | |
504 | atomic_read(&failed[SMB2_CLOSE_HE])); | |
505 | seq_printf(m, "\nFlushes: %d sent %d failed", | |
506 | atomic_read(&sent[SMB2_FLUSH_HE]), | |
507 | atomic_read(&failed[SMB2_FLUSH_HE])); | |
508 | seq_printf(m, "\nReads: %d sent %d failed", | |
509 | atomic_read(&sent[SMB2_READ_HE]), | |
510 | atomic_read(&failed[SMB2_READ_HE])); | |
511 | seq_printf(m, "\nWrites: %d sent %d failed", | |
512 | atomic_read(&sent[SMB2_WRITE_HE]), | |
513 | atomic_read(&failed[SMB2_WRITE_HE])); | |
514 | seq_printf(m, "\nLocks: %d sent %d failed", | |
515 | atomic_read(&sent[SMB2_LOCK_HE]), | |
516 | atomic_read(&failed[SMB2_LOCK_HE])); | |
517 | seq_printf(m, "\nIOCTLs: %d sent %d failed", | |
518 | atomic_read(&sent[SMB2_IOCTL_HE]), | |
519 | atomic_read(&failed[SMB2_IOCTL_HE])); | |
520 | seq_printf(m, "\nCancels: %d sent %d failed", | |
521 | atomic_read(&sent[SMB2_CANCEL_HE]), | |
522 | atomic_read(&failed[SMB2_CANCEL_HE])); | |
523 | seq_printf(m, "\nEchos: %d sent %d failed", | |
524 | atomic_read(&sent[SMB2_ECHO_HE]), | |
525 | atomic_read(&failed[SMB2_ECHO_HE])); | |
526 | seq_printf(m, "\nQueryDirectories: %d sent %d failed", | |
527 | atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]), | |
528 | atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE])); | |
529 | seq_printf(m, "\nChangeNotifies: %d sent %d failed", | |
530 | atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]), | |
531 | atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE])); | |
532 | seq_printf(m, "\nQueryInfos: %d sent %d failed", | |
533 | atomic_read(&sent[SMB2_QUERY_INFO_HE]), | |
534 | atomic_read(&failed[SMB2_QUERY_INFO_HE])); | |
535 | seq_printf(m, "\nSetInfos: %d sent %d failed", | |
536 | atomic_read(&sent[SMB2_SET_INFO_HE]), | |
537 | atomic_read(&failed[SMB2_SET_INFO_HE])); | |
538 | seq_printf(m, "\nOplockBreaks: %d sent %d failed", | |
539 | atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]), | |
540 | atomic_read(&failed[SMB2_OPLOCK_BREAK_HE])); | |
541 | #endif | |
542 | } | |
543 | ||
f0df737e PS |
544 | static void |
545 | smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock) | |
546 | { | |
2b0143b5 | 547 | struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry)); |
53ef1016 PS |
548 | struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server; |
549 | ||
f0df737e PS |
550 | cfile->fid.persistent_fid = fid->persistent_fid; |
551 | cfile->fid.volatile_fid = fid->volatile_fid; | |
42873b0a PS |
552 | server->ops->set_oplock_level(cinode, oplock, fid->epoch, |
553 | &fid->purge_cache); | |
18cceb6a | 554 | cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode); |
94f87371 | 555 | memcpy(cfile->fid.create_guid, fid->create_guid, 16); |
f0df737e PS |
556 | } |
557 | ||
760ad0ca | 558 | static void |
f0df737e PS |
559 | smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon, |
560 | struct cifs_fid *fid) | |
561 | { | |
760ad0ca | 562 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
f0df737e PS |
563 | } |
564 | ||
41c1358e SF |
565 | static int |
566 | SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon, | |
567 | u64 persistent_fid, u64 volatile_fid, | |
568 | struct copychunk_ioctl *pcchunk) | |
569 | { | |
570 | int rc; | |
571 | unsigned int ret_data_len; | |
572 | struct resume_key_req *res_key; | |
573 | ||
574 | rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid, | |
575 | FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */, | |
51146625 | 576 | false /* use_ipc */, |
41c1358e SF |
577 | NULL, 0 /* no input */, |
578 | (char **)&res_key, &ret_data_len); | |
579 | ||
580 | if (rc) { | |
581 | cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc); | |
582 | goto req_res_key_exit; | |
583 | } | |
584 | if (ret_data_len < sizeof(struct resume_key_req)) { | |
585 | cifs_dbg(VFS, "Invalid refcopy resume key length\n"); | |
586 | rc = -EINVAL; | |
587 | goto req_res_key_exit; | |
588 | } | |
589 | memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE); | |
590 | ||
591 | req_res_key_exit: | |
592 | kfree(res_key); | |
593 | return rc; | |
594 | } | |
595 | ||
620d8745 | 596 | static ssize_t |
312bbc59 | 597 | smb2_copychunk_range(const unsigned int xid, |
41c1358e SF |
598 | struct cifsFileInfo *srcfile, |
599 | struct cifsFileInfo *trgtfile, u64 src_off, | |
600 | u64 len, u64 dest_off) | |
601 | { | |
602 | int rc; | |
603 | unsigned int ret_data_len; | |
604 | struct copychunk_ioctl *pcchunk; | |
9bf0c9cd SF |
605 | struct copychunk_ioctl_rsp *retbuf = NULL; |
606 | struct cifs_tcon *tcon; | |
607 | int chunks_copied = 0; | |
608 | bool chunk_sizes_updated = false; | |
620d8745 | 609 | ssize_t bytes_written, total_bytes_written = 0; |
41c1358e SF |
610 | |
611 | pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL); | |
612 | ||
613 | if (pcchunk == NULL) | |
614 | return -ENOMEM; | |
615 | ||
312bbc59 | 616 | cifs_dbg(FYI, "in smb2_copychunk_range - about to call request res key\n"); |
41c1358e SF |
617 | /* Request a key from the server to identify the source of the copy */ |
618 | rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink), | |
619 | srcfile->fid.persistent_fid, | |
620 | srcfile->fid.volatile_fid, pcchunk); | |
621 | ||
622 | /* Note: request_res_key sets res_key null only if rc !=0 */ | |
623 | if (rc) | |
9bf0c9cd | 624 | goto cchunk_out; |
41c1358e SF |
625 | |
626 | /* For now array only one chunk long, will make more flexible later */ | |
bc09d141 | 627 | pcchunk->ChunkCount = cpu_to_le32(1); |
41c1358e | 628 | pcchunk->Reserved = 0; |
41c1358e SF |
629 | pcchunk->Reserved2 = 0; |
630 | ||
9bf0c9cd | 631 | tcon = tlink_tcon(trgtfile->tlink); |
41c1358e | 632 | |
9bf0c9cd SF |
633 | while (len > 0) { |
634 | pcchunk->SourceOffset = cpu_to_le64(src_off); | |
635 | pcchunk->TargetOffset = cpu_to_le64(dest_off); | |
636 | pcchunk->Length = | |
637 | cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk)); | |
41c1358e | 638 | |
9bf0c9cd SF |
639 | /* Request server copy to target from src identified by key */ |
640 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
641 | trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, | |
51146625 AA |
642 | true /* is_fsctl */, false /* use_ipc */, |
643 | (char *)pcchunk, | |
9bf0c9cd SF |
644 | sizeof(struct copychunk_ioctl), (char **)&retbuf, |
645 | &ret_data_len); | |
646 | if (rc == 0) { | |
647 | if (ret_data_len != | |
648 | sizeof(struct copychunk_ioctl_rsp)) { | |
649 | cifs_dbg(VFS, "invalid cchunk response size\n"); | |
650 | rc = -EIO; | |
651 | goto cchunk_out; | |
652 | } | |
653 | if (retbuf->TotalBytesWritten == 0) { | |
654 | cifs_dbg(FYI, "no bytes copied\n"); | |
655 | rc = -EIO; | |
656 | goto cchunk_out; | |
657 | } | |
658 | /* | |
659 | * Check if server claimed to write more than we asked | |
660 | */ | |
661 | if (le32_to_cpu(retbuf->TotalBytesWritten) > | |
662 | le32_to_cpu(pcchunk->Length)) { | |
663 | cifs_dbg(VFS, "invalid copy chunk response\n"); | |
664 | rc = -EIO; | |
665 | goto cchunk_out; | |
666 | } | |
667 | if (le32_to_cpu(retbuf->ChunksWritten) != 1) { | |
668 | cifs_dbg(VFS, "invalid num chunks written\n"); | |
669 | rc = -EIO; | |
670 | goto cchunk_out; | |
671 | } | |
672 | chunks_copied++; | |
673 | ||
620d8745 SP |
674 | bytes_written = le32_to_cpu(retbuf->TotalBytesWritten); |
675 | src_off += bytes_written; | |
676 | dest_off += bytes_written; | |
677 | len -= bytes_written; | |
678 | total_bytes_written += bytes_written; | |
9bf0c9cd | 679 | |
620d8745 | 680 | cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %zu\n", |
9bf0c9cd SF |
681 | le32_to_cpu(retbuf->ChunksWritten), |
682 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
620d8745 | 683 | bytes_written); |
9bf0c9cd SF |
684 | } else if (rc == -EINVAL) { |
685 | if (ret_data_len != sizeof(struct copychunk_ioctl_rsp)) | |
686 | goto cchunk_out; | |
687 | ||
688 | cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n", | |
689 | le32_to_cpu(retbuf->ChunksWritten), | |
690 | le32_to_cpu(retbuf->ChunkBytesWritten), | |
691 | le32_to_cpu(retbuf->TotalBytesWritten)); | |
692 | ||
693 | /* | |
694 | * Check if this is the first request using these sizes, | |
695 | * (ie check if copy succeed once with original sizes | |
696 | * and check if the server gave us different sizes after | |
697 | * we already updated max sizes on previous request). | |
698 | * if not then why is the server returning an error now | |
699 | */ | |
700 | if ((chunks_copied != 0) || chunk_sizes_updated) | |
701 | goto cchunk_out; | |
702 | ||
703 | /* Check that server is not asking us to grow size */ | |
704 | if (le32_to_cpu(retbuf->ChunkBytesWritten) < | |
705 | tcon->max_bytes_chunk) | |
706 | tcon->max_bytes_chunk = | |
707 | le32_to_cpu(retbuf->ChunkBytesWritten); | |
708 | else | |
709 | goto cchunk_out; /* server gave us bogus size */ | |
710 | ||
711 | /* No need to change MaxChunks since already set to 1 */ | |
712 | chunk_sizes_updated = true; | |
2477bc58 SP |
713 | } else |
714 | goto cchunk_out; | |
9bf0c9cd | 715 | } |
41c1358e | 716 | |
9bf0c9cd | 717 | cchunk_out: |
41c1358e | 718 | kfree(pcchunk); |
24df1483 | 719 | kfree(retbuf); |
620d8745 SP |
720 | if (rc) |
721 | return rc; | |
722 | else | |
723 | return total_bytes_written; | |
41c1358e SF |
724 | } |
725 | ||
7a5cfb19 PS |
726 | static int |
727 | smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon, | |
728 | struct cifs_fid *fid) | |
729 | { | |
730 | return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
731 | } | |
732 | ||
09a4707e PS |
733 | static unsigned int |
734 | smb2_read_data_offset(char *buf) | |
735 | { | |
736 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
737 | return rsp->DataOffset; | |
738 | } | |
739 | ||
740 | static unsigned int | |
741 | smb2_read_data_length(char *buf) | |
742 | { | |
743 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
744 | return le32_to_cpu(rsp->DataLength); | |
745 | } | |
746 | ||
d8e05039 PS |
747 | |
748 | static int | |
db8b631d | 749 | smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid, |
d8e05039 PS |
750 | struct cifs_io_parms *parms, unsigned int *bytes_read, |
751 | char **buf, int *buf_type) | |
752 | { | |
db8b631d SF |
753 | parms->persistent_fid = pfid->persistent_fid; |
754 | parms->volatile_fid = pfid->volatile_fid; | |
d8e05039 PS |
755 | return SMB2_read(xid, parms, bytes_read, buf, buf_type); |
756 | } | |
757 | ||
009d3443 | 758 | static int |
db8b631d | 759 | smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid, |
009d3443 PS |
760 | struct cifs_io_parms *parms, unsigned int *written, |
761 | struct kvec *iov, unsigned long nr_segs) | |
762 | { | |
763 | ||
db8b631d SF |
764 | parms->persistent_fid = pfid->persistent_fid; |
765 | parms->volatile_fid = pfid->volatile_fid; | |
009d3443 PS |
766 | return SMB2_write(xid, parms, written, iov, nr_segs); |
767 | } | |
768 | ||
d43cc793 SF |
769 | /* Set or clear the SPARSE_FILE attribute based on value passed in setsparse */ |
770 | static bool smb2_set_sparse(const unsigned int xid, struct cifs_tcon *tcon, | |
771 | struct cifsFileInfo *cfile, struct inode *inode, __u8 setsparse) | |
772 | { | |
773 | struct cifsInodeInfo *cifsi; | |
774 | int rc; | |
775 | ||
776 | cifsi = CIFS_I(inode); | |
777 | ||
778 | /* if file already sparse don't bother setting sparse again */ | |
779 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && setsparse) | |
780 | return true; /* already sparse */ | |
781 | ||
782 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) && !setsparse) | |
783 | return true; /* already not sparse */ | |
784 | ||
785 | /* | |
786 | * Can't check for sparse support on share the usual way via the | |
787 | * FS attribute info (FILE_SUPPORTS_SPARSE_FILES) on the share | |
788 | * since Samba server doesn't set the flag on the share, yet | |
789 | * supports the set sparse FSCTL and returns sparse correctly | |
790 | * in the file attributes. If we fail setting sparse though we | |
791 | * mark that server does not support sparse files for this share | |
792 | * to avoid repeatedly sending the unsupported fsctl to server | |
793 | * if the file is repeatedly extended. | |
794 | */ | |
795 | if (tcon->broken_sparse_sup) | |
796 | return false; | |
797 | ||
798 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
799 | cfile->fid.volatile_fid, FSCTL_SET_SPARSE, | |
51146625 AA |
800 | true /* is_fctl */, false /* use_ipc */, |
801 | &setsparse, 1, NULL, NULL); | |
d43cc793 SF |
802 | if (rc) { |
803 | tcon->broken_sparse_sup = true; | |
804 | cifs_dbg(FYI, "set sparse rc = %d\n", rc); | |
805 | return false; | |
806 | } | |
807 | ||
808 | if (setsparse) | |
809 | cifsi->cifsAttrs |= FILE_ATTRIBUTE_SPARSE_FILE; | |
810 | else | |
811 | cifsi->cifsAttrs &= (~FILE_ATTRIBUTE_SPARSE_FILE); | |
812 | ||
813 | return true; | |
814 | } | |
815 | ||
c839ff24 PS |
816 | static int |
817 | smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon, | |
818 | struct cifsFileInfo *cfile, __u64 size, bool set_alloc) | |
819 | { | |
820 | __le64 eof = cpu_to_le64(size); | |
3d1a3745 SF |
821 | struct inode *inode; |
822 | ||
823 | /* | |
824 | * If extending file more than one page make sparse. Many Linux fs | |
825 | * make files sparse by default when extending via ftruncate | |
826 | */ | |
2b0143b5 | 827 | inode = d_inode(cfile->dentry); |
3d1a3745 SF |
828 | |
829 | if (!set_alloc && (size > inode->i_size + 8192)) { | |
3d1a3745 | 830 | __u8 set_sparse = 1; |
d43cc793 SF |
831 | |
832 | /* whether set sparse succeeds or not, extend the file */ | |
833 | smb2_set_sparse(xid, tcon, cfile, inode, set_sparse); | |
3d1a3745 SF |
834 | } |
835 | ||
c839ff24 | 836 | return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, |
f29ebb47 | 837 | cfile->fid.volatile_fid, cfile->pid, &eof, false); |
c839ff24 PS |
838 | } |
839 | ||
02b16665 SF |
840 | static int |
841 | smb2_duplicate_extents(const unsigned int xid, | |
842 | struct cifsFileInfo *srcfile, | |
843 | struct cifsFileInfo *trgtfile, u64 src_off, | |
844 | u64 len, u64 dest_off) | |
845 | { | |
846 | int rc; | |
847 | unsigned int ret_data_len; | |
02b16665 SF |
848 | struct duplicate_extents_to_file dup_ext_buf; |
849 | struct cifs_tcon *tcon = tlink_tcon(trgtfile->tlink); | |
850 | ||
851 | /* server fileays advertise duplicate extent support with this flag */ | |
852 | if ((le32_to_cpu(tcon->fsAttrInfo.Attributes) & | |
853 | FILE_SUPPORTS_BLOCK_REFCOUNTING) == 0) | |
854 | return -EOPNOTSUPP; | |
855 | ||
856 | dup_ext_buf.VolatileFileHandle = srcfile->fid.volatile_fid; | |
857 | dup_ext_buf.PersistentFileHandle = srcfile->fid.persistent_fid; | |
858 | dup_ext_buf.SourceFileOffset = cpu_to_le64(src_off); | |
859 | dup_ext_buf.TargetFileOffset = cpu_to_le64(dest_off); | |
860 | dup_ext_buf.ByteCount = cpu_to_le64(len); | |
861 | cifs_dbg(FYI, "duplicate extents: src off %lld dst off %lld len %lld", | |
862 | src_off, dest_off, len); | |
863 | ||
864 | rc = smb2_set_file_size(xid, tcon, trgtfile, dest_off + len, false); | |
865 | if (rc) | |
866 | goto duplicate_extents_out; | |
867 | ||
868 | rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, | |
869 | trgtfile->fid.volatile_fid, | |
870 | FSCTL_DUPLICATE_EXTENTS_TO_FILE, | |
51146625 AA |
871 | true /* is_fsctl */, false /* use_ipc */, |
872 | (char *)&dup_ext_buf, | |
02b16665 | 873 | sizeof(struct duplicate_extents_to_file), |
24df1483 | 874 | NULL, |
02b16665 SF |
875 | &ret_data_len); |
876 | ||
877 | if (ret_data_len > 0) | |
878 | cifs_dbg(FYI, "non-zero response length in duplicate extents"); | |
879 | ||
880 | duplicate_extents_out: | |
881 | return rc; | |
882 | } | |
02b16665 | 883 | |
64a5cfa6 SF |
884 | static int |
885 | smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, | |
886 | struct cifsFileInfo *cfile) | |
887 | { | |
888 | return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid, | |
889 | cfile->fid.volatile_fid); | |
890 | } | |
891 | ||
b3152e2c SF |
892 | static int |
893 | smb3_set_integrity(const unsigned int xid, struct cifs_tcon *tcon, | |
894 | struct cifsFileInfo *cfile) | |
895 | { | |
896 | struct fsctl_set_integrity_information_req integr_info; | |
b3152e2c SF |
897 | unsigned int ret_data_len; |
898 | ||
899 | integr_info.ChecksumAlgorithm = cpu_to_le16(CHECKSUM_TYPE_UNCHANGED); | |
900 | integr_info.Flags = 0; | |
901 | integr_info.Reserved = 0; | |
902 | ||
903 | return SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
904 | cfile->fid.volatile_fid, | |
905 | FSCTL_SET_INTEGRITY_INFORMATION, | |
51146625 AA |
906 | true /* is_fsctl */, false /* use_ipc */, |
907 | (char *)&integr_info, | |
b3152e2c | 908 | sizeof(struct fsctl_set_integrity_information_req), |
24df1483 | 909 | NULL, |
b3152e2c SF |
910 | &ret_data_len); |
911 | ||
912 | } | |
913 | ||
834170c8 SF |
914 | static int |
915 | smb3_enum_snapshots(const unsigned int xid, struct cifs_tcon *tcon, | |
916 | struct cifsFileInfo *cfile, void __user *ioc_buf) | |
917 | { | |
918 | char *retbuf = NULL; | |
919 | unsigned int ret_data_len = 0; | |
920 | int rc; | |
921 | struct smb_snapshot_array snapshot_in; | |
922 | ||
923 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
924 | cfile->fid.volatile_fid, | |
925 | FSCTL_SRV_ENUMERATE_SNAPSHOTS, | |
51146625 AA |
926 | true /* is_fsctl */, false /* use_ipc */, |
927 | NULL, 0 /* no input data */, | |
834170c8 SF |
928 | (char **)&retbuf, |
929 | &ret_data_len); | |
930 | cifs_dbg(FYI, "enum snaphots ioctl returned %d and ret buflen is %d\n", | |
931 | rc, ret_data_len); | |
932 | if (rc) | |
933 | return rc; | |
934 | ||
935 | if (ret_data_len && (ioc_buf != NULL) && (retbuf != NULL)) { | |
936 | /* Fixup buffer */ | |
937 | if (copy_from_user(&snapshot_in, ioc_buf, | |
938 | sizeof(struct smb_snapshot_array))) { | |
939 | rc = -EFAULT; | |
940 | kfree(retbuf); | |
941 | return rc; | |
942 | } | |
943 | if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) { | |
944 | rc = -ERANGE; | |
0e5c7955 | 945 | kfree(retbuf); |
834170c8 SF |
946 | return rc; |
947 | } | |
948 | ||
949 | if (ret_data_len > snapshot_in.snapshot_array_size) | |
950 | ret_data_len = snapshot_in.snapshot_array_size; | |
951 | ||
952 | if (copy_to_user(ioc_buf, retbuf, ret_data_len)) | |
953 | rc = -EFAULT; | |
954 | } | |
955 | ||
956 | kfree(retbuf); | |
957 | return rc; | |
958 | } | |
959 | ||
d324f08d PS |
960 | static int |
961 | smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, | |
962 | const char *path, struct cifs_sb_info *cifs_sb, | |
963 | struct cifs_fid *fid, __u16 search_flags, | |
964 | struct cifs_search_info *srch_inf) | |
965 | { | |
966 | __le16 *utf16_path; | |
967 | int rc; | |
2e44b288 | 968 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 | 969 | struct cifs_open_parms oparms; |
d324f08d PS |
970 | |
971 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
972 | if (!utf16_path) | |
973 | return -ENOMEM; | |
974 | ||
064f6047 PS |
975 | oparms.tcon = tcon; |
976 | oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; | |
977 | oparms.disposition = FILE_OPEN; | |
978 | oparms.create_options = 0; | |
979 | oparms.fid = fid; | |
9cbc0b73 | 980 | oparms.reconnect = false; |
064f6047 | 981 | |
b42bf888 | 982 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); |
d324f08d PS |
983 | kfree(utf16_path); |
984 | if (rc) { | |
dcd87838 | 985 | cifs_dbg(FYI, "open dir failed rc=%d\n", rc); |
d324f08d PS |
986 | return rc; |
987 | } | |
988 | ||
989 | srch_inf->entries_in_buffer = 0; | |
990 | srch_inf->index_of_last_entry = 0; | |
d324f08d | 991 | |
064f6047 PS |
992 | rc = SMB2_query_directory(xid, tcon, fid->persistent_fid, |
993 | fid->volatile_fid, 0, srch_inf); | |
d324f08d | 994 | if (rc) { |
dcd87838 | 995 | cifs_dbg(FYI, "query directory failed rc=%d\n", rc); |
064f6047 | 996 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
d324f08d PS |
997 | } |
998 | return rc; | |
999 | } | |
1000 | ||
1001 | static int | |
1002 | smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon, | |
1003 | struct cifs_fid *fid, __u16 search_flags, | |
1004 | struct cifs_search_info *srch_inf) | |
1005 | { | |
1006 | return SMB2_query_directory(xid, tcon, fid->persistent_fid, | |
1007 | fid->volatile_fid, 0, srch_inf); | |
1008 | } | |
1009 | ||
1010 | static int | |
1011 | smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon, | |
1012 | struct cifs_fid *fid) | |
1013 | { | |
1014 | return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
1015 | } | |
1016 | ||
2e44b288 PS |
1017 | /* |
1018 | * If we negotiate SMB2 protocol and get STATUS_PENDING - update | |
1019 | * the number of credits and return true. Otherwise - return false. | |
1020 | */ | |
1021 | static bool | |
1022 | smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length) | |
1023 | { | |
31473fc4 | 1024 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); |
2e44b288 | 1025 | |
31473fc4 | 1026 | if (shdr->Status != STATUS_PENDING) |
2e44b288 PS |
1027 | return false; |
1028 | ||
1029 | if (!length) { | |
1030 | spin_lock(&server->req_lock); | |
31473fc4 | 1031 | server->credits += le16_to_cpu(shdr->CreditRequest); |
2e44b288 PS |
1032 | spin_unlock(&server->req_lock); |
1033 | wake_up(&server->request_q); | |
1034 | } | |
1035 | ||
1036 | return true; | |
1037 | } | |
1038 | ||
983c88a4 PS |
1039 | static int |
1040 | smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid, | |
1041 | struct cifsInodeInfo *cinode) | |
1042 | { | |
0822f514 PS |
1043 | if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING) |
1044 | return SMB2_lease_break(0, tcon, cinode->lease_key, | |
1045 | smb2_get_lease_state(cinode)); | |
1046 | ||
983c88a4 PS |
1047 | return SMB2_oplock_break(0, tcon, fid->persistent_fid, |
1048 | fid->volatile_fid, | |
18cceb6a | 1049 | CIFS_CACHE_READ(cinode) ? 1 : 0); |
983c88a4 PS |
1050 | } |
1051 | ||
6fc05c25 PS |
1052 | static int |
1053 | smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
1054 | struct kstatfs *buf) | |
1055 | { | |
1056 | int rc; | |
6fc05c25 PS |
1057 | __le16 srch_path = 0; /* Null - open root of share */ |
1058 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
064f6047 PS |
1059 | struct cifs_open_parms oparms; |
1060 | struct cifs_fid fid; | |
1061 | ||
1062 | oparms.tcon = tcon; | |
1063 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
1064 | oparms.disposition = FILE_OPEN; | |
1065 | oparms.create_options = 0; | |
1066 | oparms.fid = &fid; | |
9cbc0b73 | 1067 | oparms.reconnect = false; |
6fc05c25 | 1068 | |
b42bf888 | 1069 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); |
6fc05c25 PS |
1070 | if (rc) |
1071 | return rc; | |
1072 | buf->f_type = SMB2_MAGIC_NUMBER; | |
064f6047 PS |
1073 | rc = SMB2_QFS_info(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
1074 | buf); | |
1075 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
6fc05c25 PS |
1076 | return rc; |
1077 | } | |
1078 | ||
027e8eec PS |
1079 | static bool |
1080 | smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2) | |
1081 | { | |
1082 | return ob1->fid.persistent_fid == ob2->fid.persistent_fid && | |
1083 | ob1->fid.volatile_fid == ob2->fid.volatile_fid; | |
1084 | } | |
1085 | ||
f7ba7fe6 PS |
1086 | static int |
1087 | smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, | |
1088 | __u64 length, __u32 type, int lock, int unlock, bool wait) | |
1089 | { | |
1090 | if (unlock && !lock) | |
1091 | type = SMB2_LOCKFLAG_UNLOCK; | |
1092 | return SMB2_lock(xid, tlink_tcon(cfile->tlink), | |
1093 | cfile->fid.persistent_fid, cfile->fid.volatile_fid, | |
1094 | current->tgid, length, offset, type, wait); | |
1095 | } | |
1096 | ||
b8c32dbb PS |
1097 | static void |
1098 | smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid) | |
1099 | { | |
1100 | memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE); | |
1101 | } | |
1102 | ||
1103 | static void | |
1104 | smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid) | |
1105 | { | |
1106 | memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE); | |
1107 | } | |
1108 | ||
1109 | static void | |
1110 | smb2_new_lease_key(struct cifs_fid *fid) | |
1111 | { | |
fa70b87c | 1112 | generate_random_uuid(fid->lease_key); |
b8c32dbb PS |
1113 | } |
1114 | ||
9d49640a AA |
1115 | static int |
1116 | smb2_get_dfs_refer(const unsigned int xid, struct cifs_ses *ses, | |
1117 | const char *search_name, | |
1118 | struct dfs_info3_param **target_nodes, | |
1119 | unsigned int *num_of_nodes, | |
1120 | const struct nls_table *nls_codepage, int remap) | |
1121 | { | |
1122 | int rc; | |
1123 | __le16 *utf16_path = NULL; | |
1124 | int utf16_path_len = 0; | |
1125 | struct cifs_tcon *tcon; | |
1126 | struct fsctl_get_dfs_referral_req *dfs_req = NULL; | |
1127 | struct get_dfs_referral_rsp *dfs_rsp = NULL; | |
1128 | u32 dfs_req_size = 0, dfs_rsp_size = 0; | |
1129 | ||
1130 | cifs_dbg(FYI, "smb2_get_dfs_refer path <%s>\n", search_name); | |
1131 | ||
1132 | /* | |
1133 | * Use any tcon from the current session. Here, the first one. | |
1134 | */ | |
1135 | spin_lock(&cifs_tcp_ses_lock); | |
1136 | tcon = list_first_entry_or_null(&ses->tcon_list, struct cifs_tcon, | |
1137 | tcon_list); | |
1138 | if (tcon) | |
1139 | tcon->tc_count++; | |
1140 | spin_unlock(&cifs_tcp_ses_lock); | |
1141 | ||
1142 | if (!tcon) { | |
1143 | cifs_dbg(VFS, "session %p has no tcon available for a dfs referral request\n", | |
1144 | ses); | |
1145 | rc = -ENOTCONN; | |
1146 | goto out; | |
1147 | } | |
1148 | ||
1149 | utf16_path = cifs_strndup_to_utf16(search_name, PATH_MAX, | |
1150 | &utf16_path_len, | |
1151 | nls_codepage, remap); | |
1152 | if (!utf16_path) { | |
1153 | rc = -ENOMEM; | |
1154 | goto out; | |
1155 | } | |
1156 | ||
1157 | dfs_req_size = sizeof(*dfs_req) + utf16_path_len; | |
1158 | dfs_req = kzalloc(dfs_req_size, GFP_KERNEL); | |
1159 | if (!dfs_req) { | |
1160 | rc = -ENOMEM; | |
1161 | goto out; | |
1162 | } | |
1163 | ||
1164 | /* Highest DFS referral version understood */ | |
1165 | dfs_req->MaxReferralLevel = DFS_VERSION; | |
1166 | ||
1167 | /* Path to resolve in an UTF-16 null-terminated string */ | |
1168 | memcpy(dfs_req->RequestFileName, utf16_path, utf16_path_len); | |
1169 | ||
1170 | do { | |
1171 | /* try first with IPC */ | |
1172 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
1173 | FSCTL_DFS_GET_REFERRALS, | |
1174 | true /* is_fsctl */, true /* use_ipc */, | |
1175 | (char *)dfs_req, dfs_req_size, | |
1176 | (char **)&dfs_rsp, &dfs_rsp_size); | |
1177 | if (rc == -ENOTCONN) { | |
1178 | /* try with normal tcon */ | |
1179 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
1180 | FSCTL_DFS_GET_REFERRALS, | |
1181 | true /* is_fsctl */, false /*use_ipc*/, | |
1182 | (char *)dfs_req, dfs_req_size, | |
1183 | (char **)&dfs_rsp, &dfs_rsp_size); | |
1184 | } | |
1185 | } while (rc == -EAGAIN); | |
1186 | ||
1187 | if (rc) { | |
1188 | cifs_dbg(VFS, "ioctl error in smb2_get_dfs_refer rc=%d\n", rc); | |
1189 | goto out; | |
1190 | } | |
1191 | ||
1192 | rc = parse_dfs_referrals(dfs_rsp, dfs_rsp_size, | |
1193 | num_of_nodes, target_nodes, | |
1194 | nls_codepage, remap, search_name, | |
1195 | true /* is_unicode */); | |
1196 | if (rc) { | |
1197 | cifs_dbg(VFS, "parse error in smb2_get_dfs_refer rc=%d\n", rc); | |
1198 | goto out; | |
1199 | } | |
1200 | ||
1201 | out: | |
1202 | if (tcon) { | |
1203 | spin_lock(&cifs_tcp_ses_lock); | |
1204 | tcon->tc_count--; | |
1205 | spin_unlock(&cifs_tcp_ses_lock); | |
1206 | } | |
1207 | kfree(utf16_path); | |
1208 | kfree(dfs_req); | |
1209 | kfree(dfs_rsp); | |
1210 | return rc; | |
1211 | } | |
7893242e PS |
1212 | #define SMB2_SYMLINK_STRUCT_SIZE \ |
1213 | (sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp)) | |
1214 | ||
b42bf888 PS |
1215 | static int |
1216 | smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, | |
1217 | const char *full_path, char **target_path, | |
1218 | struct cifs_sb_info *cifs_sb) | |
1219 | { | |
1220 | int rc; | |
1221 | __le16 *utf16_path; | |
1222 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1223 | struct cifs_open_parms oparms; | |
1224 | struct cifs_fid fid; | |
1225 | struct smb2_err_rsp *err_buf = NULL; | |
1226 | struct smb2_symlink_err_rsp *symlink; | |
7893242e PS |
1227 | unsigned int sub_len; |
1228 | unsigned int sub_offset; | |
1229 | unsigned int print_len; | |
1230 | unsigned int print_offset; | |
b42bf888 PS |
1231 | |
1232 | cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); | |
1233 | ||
1234 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
1235 | if (!utf16_path) | |
1236 | return -ENOMEM; | |
1237 | ||
1238 | oparms.tcon = tcon; | |
1239 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
1240 | oparms.disposition = FILE_OPEN; | |
1241 | oparms.create_options = 0; | |
1242 | oparms.fid = &fid; | |
1243 | oparms.reconnect = false; | |
1244 | ||
1245 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_buf); | |
1246 | ||
1247 | if (!rc || !err_buf) { | |
1248 | kfree(utf16_path); | |
1249 | return -ENOENT; | |
1250 | } | |
7893242e PS |
1251 | |
1252 | if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) || | |
1253 | get_rfc1002_length(err_buf) + 4 < SMB2_SYMLINK_STRUCT_SIZE) { | |
1254 | kfree(utf16_path); | |
1255 | return -ENOENT; | |
1256 | } | |
1257 | ||
b42bf888 PS |
1258 | /* open must fail on symlink - reset rc */ |
1259 | rc = 0; | |
1260 | symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData; | |
1261 | sub_len = le16_to_cpu(symlink->SubstituteNameLength); | |
1262 | sub_offset = le16_to_cpu(symlink->SubstituteNameOffset); | |
7893242e PS |
1263 | print_len = le16_to_cpu(symlink->PrintNameLength); |
1264 | print_offset = le16_to_cpu(symlink->PrintNameOffset); | |
1265 | ||
1266 | if (get_rfc1002_length(err_buf) + 4 < | |
1267 | SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) { | |
1268 | kfree(utf16_path); | |
1269 | return -ENOENT; | |
1270 | } | |
1271 | ||
1272 | if (get_rfc1002_length(err_buf) + 4 < | |
1273 | SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) { | |
1274 | kfree(utf16_path); | |
1275 | return -ENOENT; | |
1276 | } | |
1277 | ||
b42bf888 PS |
1278 | *target_path = cifs_strndup_from_utf16( |
1279 | (char *)symlink->PathBuffer + sub_offset, | |
1280 | sub_len, true, cifs_sb->local_nls); | |
1281 | if (!(*target_path)) { | |
1282 | kfree(utf16_path); | |
1283 | return -ENOMEM; | |
1284 | } | |
1285 | convert_delimiter(*target_path, '/'); | |
1286 | cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); | |
1287 | kfree(utf16_path); | |
1288 | return rc; | |
1289 | } | |
1290 | ||
84908426 | 1291 | #ifdef CONFIG_CIFS_ACL |
2f1afe25 SP |
1292 | static struct cifs_ntsd * |
1293 | get_smb2_acl_by_fid(struct cifs_sb_info *cifs_sb, | |
1294 | const struct cifs_fid *cifsfid, u32 *pacllen) | |
1295 | { | |
1296 | struct cifs_ntsd *pntsd = NULL; | |
1297 | unsigned int xid; | |
1298 | int rc = -EOPNOTSUPP; | |
1299 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
1300 | ||
1301 | if (IS_ERR(tlink)) | |
1302 | return ERR_CAST(tlink); | |
1303 | ||
1304 | xid = get_xid(); | |
1305 | cifs_dbg(FYI, "trying to get acl\n"); | |
1306 | ||
1307 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), cifsfid->persistent_fid, | |
1308 | cifsfid->volatile_fid, (void **)&pntsd, pacllen); | |
1309 | free_xid(xid); | |
1310 | ||
1311 | cifs_put_tlink(tlink); | |
1312 | ||
1313 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
1314 | if (rc) | |
1315 | return ERR_PTR(rc); | |
1316 | return pntsd; | |
1317 | ||
1318 | } | |
1319 | ||
1320 | static struct cifs_ntsd * | |
1321 | get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb, | |
1322 | const char *path, u32 *pacllen) | |
1323 | { | |
1324 | struct cifs_ntsd *pntsd = NULL; | |
1325 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
1326 | unsigned int xid; | |
1327 | int rc; | |
1328 | struct cifs_tcon *tcon; | |
1329 | struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); | |
1330 | struct cifs_fid fid; | |
1331 | struct cifs_open_parms oparms; | |
1332 | __le16 *utf16_path; | |
1333 | ||
1334 | cifs_dbg(FYI, "get smb3 acl for path %s\n", path); | |
1335 | if (IS_ERR(tlink)) | |
1336 | return ERR_CAST(tlink); | |
1337 | ||
1338 | tcon = tlink_tcon(tlink); | |
1339 | xid = get_xid(); | |
1340 | ||
1341 | if (backup_cred(cifs_sb)) | |
709340a0 | 1342 | oparms.create_options = CREATE_OPEN_BACKUP_INTENT; |
2f1afe25 SP |
1343 | else |
1344 | oparms.create_options = 0; | |
1345 | ||
1346 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
1347 | if (!utf16_path) | |
1348 | return ERR_PTR(-ENOMEM); | |
1349 | ||
1350 | oparms.tcon = tcon; | |
1351 | oparms.desired_access = READ_CONTROL; | |
1352 | oparms.disposition = FILE_OPEN; | |
1353 | oparms.fid = &fid; | |
1354 | oparms.reconnect = false; | |
1355 | ||
1356 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); | |
1357 | kfree(utf16_path); | |
1358 | if (!rc) { | |
1359 | rc = SMB2_query_acl(xid, tlink_tcon(tlink), fid.persistent_fid, | |
1360 | fid.volatile_fid, (void **)&pntsd, pacllen); | |
1361 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
1362 | } | |
1363 | ||
1364 | cifs_put_tlink(tlink); | |
1365 | free_xid(xid); | |
1366 | ||
1367 | cifs_dbg(FYI, "%s: rc = %d ACL len %d\n", __func__, rc, *pacllen); | |
1368 | if (rc) | |
1369 | return ERR_PTR(rc); | |
1370 | return pntsd; | |
1371 | } | |
1372 | ||
1373 | /* Retrieve an ACL from the server */ | |
1374 | static struct cifs_ntsd * | |
1375 | get_smb2_acl(struct cifs_sb_info *cifs_sb, | |
1376 | struct inode *inode, const char *path, | |
1377 | u32 *pacllen) | |
1378 | { | |
1379 | struct cifs_ntsd *pntsd = NULL; | |
1380 | struct cifsFileInfo *open_file = NULL; | |
1381 | ||
1382 | if (inode) | |
1383 | open_file = find_readable_file(CIFS_I(inode), true); | |
1384 | if (!open_file) | |
1385 | return get_smb2_acl_by_path(cifs_sb, path, pacllen); | |
1386 | ||
1387 | pntsd = get_smb2_acl_by_fid(cifs_sb, &open_file->fid, pacllen); | |
1388 | cifsFileInfo_put(open_file); | |
1389 | return pntsd; | |
1390 | } | |
84908426 | 1391 | #endif |
2f1afe25 | 1392 | |
30175628 SF |
1393 | static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon, |
1394 | loff_t offset, loff_t len, bool keep_size) | |
1395 | { | |
1396 | struct inode *inode; | |
1397 | struct cifsInodeInfo *cifsi; | |
1398 | struct cifsFileInfo *cfile = file->private_data; | |
1399 | struct file_zero_data_information fsctl_buf; | |
1400 | long rc; | |
1401 | unsigned int xid; | |
1402 | ||
1403 | xid = get_xid(); | |
1404 | ||
2b0143b5 | 1405 | inode = d_inode(cfile->dentry); |
30175628 SF |
1406 | cifsi = CIFS_I(inode); |
1407 | ||
1408 | /* if file not oplocked can't be sure whether asking to extend size */ | |
1409 | if (!CIFS_CACHE_READ(cifsi)) | |
1410 | if (keep_size == false) | |
1411 | return -EOPNOTSUPP; | |
1412 | ||
2bb93d24 | 1413 | /* |
30175628 SF |
1414 | * Must check if file sparse since fallocate -z (zero range) assumes |
1415 | * non-sparse allocation | |
1416 | */ | |
1417 | if (!(cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE)) | |
1418 | return -EOPNOTSUPP; | |
1419 | ||
1420 | /* | |
1421 | * need to make sure we are not asked to extend the file since the SMB3 | |
1422 | * fsctl does not change the file size. In the future we could change | |
1423 | * this to zero the first part of the range then set the file size | |
1424 | * which for a non sparse file would zero the newly extended range | |
1425 | */ | |
1426 | if (keep_size == false) | |
1427 | if (i_size_read(inode) < offset + len) | |
1428 | return -EOPNOTSUPP; | |
1429 | ||
1430 | cifs_dbg(FYI, "offset %lld len %lld", offset, len); | |
1431 | ||
1432 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
1433 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
1434 | ||
1435 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1436 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
51146625 AA |
1437 | true /* is_fctl */, false /* use_ipc */, |
1438 | (char *)&fsctl_buf, | |
30175628 SF |
1439 | sizeof(struct file_zero_data_information), NULL, NULL); |
1440 | free_xid(xid); | |
1441 | return rc; | |
1442 | } | |
1443 | ||
31742c5a SF |
1444 | static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon, |
1445 | loff_t offset, loff_t len) | |
1446 | { | |
1447 | struct inode *inode; | |
1448 | struct cifsInodeInfo *cifsi; | |
1449 | struct cifsFileInfo *cfile = file->private_data; | |
1450 | struct file_zero_data_information fsctl_buf; | |
1451 | long rc; | |
1452 | unsigned int xid; | |
1453 | __u8 set_sparse = 1; | |
1454 | ||
1455 | xid = get_xid(); | |
1456 | ||
2b0143b5 | 1457 | inode = d_inode(cfile->dentry); |
31742c5a SF |
1458 | cifsi = CIFS_I(inode); |
1459 | ||
1460 | /* Need to make file sparse, if not already, before freeing range. */ | |
1461 | /* Consider adding equivalent for compressed since it could also work */ | |
1462 | if (!smb2_set_sparse(xid, tcon, cfile, inode, set_sparse)) | |
1463 | return -EOPNOTSUPP; | |
1464 | ||
1465 | cifs_dbg(FYI, "offset %lld len %lld", offset, len); | |
1466 | ||
1467 | fsctl_buf.FileOffset = cpu_to_le64(offset); | |
1468 | fsctl_buf.BeyondFinalZero = cpu_to_le64(offset + len); | |
1469 | ||
1470 | rc = SMB2_ioctl(xid, tcon, cfile->fid.persistent_fid, | |
1471 | cfile->fid.volatile_fid, FSCTL_SET_ZERO_DATA, | |
51146625 AA |
1472 | true /* is_fctl */, false /* use_ipc */, |
1473 | (char *)&fsctl_buf, | |
31742c5a SF |
1474 | sizeof(struct file_zero_data_information), NULL, NULL); |
1475 | free_xid(xid); | |
1476 | return rc; | |
1477 | } | |
1478 | ||
9ccf3216 SF |
1479 | static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, |
1480 | loff_t off, loff_t len, bool keep_size) | |
1481 | { | |
1482 | struct inode *inode; | |
1483 | struct cifsInodeInfo *cifsi; | |
1484 | struct cifsFileInfo *cfile = file->private_data; | |
1485 | long rc = -EOPNOTSUPP; | |
1486 | unsigned int xid; | |
1487 | ||
1488 | xid = get_xid(); | |
1489 | ||
2b0143b5 | 1490 | inode = d_inode(cfile->dentry); |
9ccf3216 SF |
1491 | cifsi = CIFS_I(inode); |
1492 | ||
1493 | /* if file not oplocked can't be sure whether asking to extend size */ | |
1494 | if (!CIFS_CACHE_READ(cifsi)) | |
1495 | if (keep_size == false) | |
1496 | return -EOPNOTSUPP; | |
1497 | ||
1498 | /* | |
1499 | * Files are non-sparse by default so falloc may be a no-op | |
1500 | * Must check if file sparse. If not sparse, and not extending | |
1501 | * then no need to do anything since file already allocated | |
1502 | */ | |
1503 | if ((cifsi->cifsAttrs & FILE_ATTRIBUTE_SPARSE_FILE) == 0) { | |
1504 | if (keep_size == true) | |
1505 | return 0; | |
1506 | /* check if extending file */ | |
1507 | else if (i_size_read(inode) >= off + len) | |
1508 | /* not extending file and already not sparse */ | |
1509 | return 0; | |
1510 | /* BB: in future add else clause to extend file */ | |
1511 | else | |
1512 | return -EOPNOTSUPP; | |
1513 | } | |
1514 | ||
1515 | if ((keep_size == true) || (i_size_read(inode) >= off + len)) { | |
1516 | /* | |
1517 | * Check if falloc starts within first few pages of file | |
1518 | * and ends within a few pages of the end of file to | |
1519 | * ensure that most of file is being forced to be | |
1520 | * fallocated now. If so then setting whole file sparse | |
1521 | * ie potentially making a few extra pages at the beginning | |
1522 | * or end of the file non-sparse via set_sparse is harmless. | |
1523 | */ | |
1524 | if ((off > 8192) || (off + len + 8192 < i_size_read(inode))) | |
1525 | return -EOPNOTSUPP; | |
1526 | ||
1527 | rc = smb2_set_sparse(xid, tcon, cfile, inode, false); | |
1528 | } | |
1529 | /* BB: else ... in future add code to extend file and set sparse */ | |
1530 | ||
1531 | ||
1532 | free_xid(xid); | |
1533 | return rc; | |
1534 | } | |
1535 | ||
1536 | ||
31742c5a SF |
1537 | static long smb3_fallocate(struct file *file, struct cifs_tcon *tcon, int mode, |
1538 | loff_t off, loff_t len) | |
1539 | { | |
1540 | /* KEEP_SIZE already checked for by do_fallocate */ | |
1541 | if (mode & FALLOC_FL_PUNCH_HOLE) | |
1542 | return smb3_punch_hole(file, tcon, off, len); | |
30175628 SF |
1543 | else if (mode & FALLOC_FL_ZERO_RANGE) { |
1544 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1545 | return smb3_zero_range(file, tcon, off, len, true); | |
1546 | return smb3_zero_range(file, tcon, off, len, false); | |
9ccf3216 SF |
1547 | } else if (mode == FALLOC_FL_KEEP_SIZE) |
1548 | return smb3_simple_falloc(file, tcon, off, len, true); | |
1549 | else if (mode == 0) | |
1550 | return smb3_simple_falloc(file, tcon, off, len, false); | |
31742c5a SF |
1551 | |
1552 | return -EOPNOTSUPP; | |
1553 | } | |
1554 | ||
c11f1df5 SP |
1555 | static void |
1556 | smb2_downgrade_oplock(struct TCP_Server_Info *server, | |
1557 | struct cifsInodeInfo *cinode, bool set_level2) | |
1558 | { | |
1559 | if (set_level2) | |
1560 | server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II, | |
1561 | 0, NULL); | |
1562 | else | |
1563 | server->ops->set_oplock_level(cinode, 0, 0, NULL); | |
1564 | } | |
1565 | ||
53ef1016 | 1566 | static void |
42873b0a PS |
1567 | smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
1568 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
1569 | { |
1570 | oplock &= 0xFF; | |
1571 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
1572 | return; | |
1573 | if (oplock == SMB2_OPLOCK_LEVEL_BATCH) { | |
42873b0a | 1574 | cinode->oplock = CIFS_CACHE_RHW_FLG; |
53ef1016 PS |
1575 | cifs_dbg(FYI, "Batch Oplock granted on inode %p\n", |
1576 | &cinode->vfs_inode); | |
1577 | } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) { | |
42873b0a | 1578 | cinode->oplock = CIFS_CACHE_RW_FLG; |
53ef1016 PS |
1579 | cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n", |
1580 | &cinode->vfs_inode); | |
1581 | } else if (oplock == SMB2_OPLOCK_LEVEL_II) { | |
1582 | cinode->oplock = CIFS_CACHE_READ_FLG; | |
1583 | cifs_dbg(FYI, "Level II Oplock granted on inode %p\n", | |
1584 | &cinode->vfs_inode); | |
1585 | } else | |
1586 | cinode->oplock = 0; | |
1587 | } | |
1588 | ||
1589 | static void | |
42873b0a PS |
1590 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
1591 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
1592 | { |
1593 | char message[5] = {0}; | |
1594 | ||
1595 | oplock &= 0xFF; | |
1596 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
1597 | return; | |
1598 | ||
1599 | cinode->oplock = 0; | |
1600 | if (oplock & SMB2_LEASE_READ_CACHING_HE) { | |
1601 | cinode->oplock |= CIFS_CACHE_READ_FLG; | |
1602 | strcat(message, "R"); | |
1603 | } | |
1604 | if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) { | |
1605 | cinode->oplock |= CIFS_CACHE_HANDLE_FLG; | |
1606 | strcat(message, "H"); | |
1607 | } | |
1608 | if (oplock & SMB2_LEASE_WRITE_CACHING_HE) { | |
1609 | cinode->oplock |= CIFS_CACHE_WRITE_FLG; | |
1610 | strcat(message, "W"); | |
1611 | } | |
1612 | if (!cinode->oplock) | |
1613 | strcat(message, "None"); | |
1614 | cifs_dbg(FYI, "%s Lease granted on inode %p\n", message, | |
1615 | &cinode->vfs_inode); | |
1616 | } | |
1617 | ||
42873b0a PS |
1618 | static void |
1619 | smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, | |
1620 | unsigned int epoch, bool *purge_cache) | |
1621 | { | |
1622 | unsigned int old_oplock = cinode->oplock; | |
1623 | ||
1624 | smb21_set_oplock_level(cinode, oplock, epoch, purge_cache); | |
1625 | ||
1626 | if (purge_cache) { | |
1627 | *purge_cache = false; | |
1628 | if (old_oplock == CIFS_CACHE_READ_FLG) { | |
1629 | if (cinode->oplock == CIFS_CACHE_READ_FLG && | |
1630 | (epoch - cinode->epoch > 0)) | |
1631 | *purge_cache = true; | |
1632 | else if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
1633 | (epoch - cinode->epoch > 1)) | |
1634 | *purge_cache = true; | |
1635 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
1636 | (epoch - cinode->epoch > 1)) | |
1637 | *purge_cache = true; | |
1638 | else if (cinode->oplock == 0 && | |
1639 | (epoch - cinode->epoch > 0)) | |
1640 | *purge_cache = true; | |
1641 | } else if (old_oplock == CIFS_CACHE_RH_FLG) { | |
1642 | if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
1643 | (epoch - cinode->epoch > 0)) | |
1644 | *purge_cache = true; | |
1645 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
1646 | (epoch - cinode->epoch > 1)) | |
1647 | *purge_cache = true; | |
1648 | } | |
1649 | cinode->epoch = epoch; | |
1650 | } | |
1651 | } | |
1652 | ||
53ef1016 PS |
1653 | static bool |
1654 | smb2_is_read_op(__u32 oplock) | |
1655 | { | |
1656 | return oplock == SMB2_OPLOCK_LEVEL_II; | |
1657 | } | |
1658 | ||
1659 | static bool | |
1660 | smb21_is_read_op(__u32 oplock) | |
1661 | { | |
1662 | return (oplock & SMB2_LEASE_READ_CACHING_HE) && | |
1663 | !(oplock & SMB2_LEASE_WRITE_CACHING_HE); | |
1664 | } | |
1665 | ||
f047390a PS |
1666 | static __le32 |
1667 | map_oplock_to_lease(u8 oplock) | |
1668 | { | |
1669 | if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
1670 | return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING; | |
1671 | else if (oplock == SMB2_OPLOCK_LEVEL_II) | |
1672 | return SMB2_LEASE_READ_CACHING; | |
1673 | else if (oplock == SMB2_OPLOCK_LEVEL_BATCH) | |
1674 | return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING | | |
1675 | SMB2_LEASE_WRITE_CACHING; | |
1676 | return 0; | |
1677 | } | |
1678 | ||
a41a28bd PS |
1679 | static char * |
1680 | smb2_create_lease_buf(u8 *lease_key, u8 oplock) | |
1681 | { | |
1682 | struct create_lease *buf; | |
1683 | ||
1684 | buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL); | |
1685 | if (!buf) | |
1686 | return NULL; | |
1687 | ||
1688 | buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key)); | |
1689 | buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8))); | |
f047390a | 1690 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
a41a28bd PS |
1691 | |
1692 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
1693 | (struct create_lease, lcontext)); | |
1694 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context)); | |
1695 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
1696 | (struct create_lease, Name)); | |
1697 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 1698 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
a41a28bd PS |
1699 | buf->Name[0] = 'R'; |
1700 | buf->Name[1] = 'q'; | |
1701 | buf->Name[2] = 'L'; | |
1702 | buf->Name[3] = 's'; | |
1703 | return (char *)buf; | |
1704 | } | |
1705 | ||
f047390a PS |
1706 | static char * |
1707 | smb3_create_lease_buf(u8 *lease_key, u8 oplock) | |
1708 | { | |
1709 | struct create_lease_v2 *buf; | |
1710 | ||
1711 | buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL); | |
1712 | if (!buf) | |
1713 | return NULL; | |
1714 | ||
1715 | buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key)); | |
1716 | buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8))); | |
1717 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); | |
1718 | ||
1719 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
1720 | (struct create_lease_v2, lcontext)); | |
1721 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2)); | |
1722 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
1723 | (struct create_lease_v2, Name)); | |
1724 | buf->ccontext.NameLength = cpu_to_le16(4); | |
12197a7f | 1725 | /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ |
f047390a PS |
1726 | buf->Name[0] = 'R'; |
1727 | buf->Name[1] = 'q'; | |
1728 | buf->Name[2] = 'L'; | |
1729 | buf->Name[3] = 's'; | |
1730 | return (char *)buf; | |
1731 | } | |
1732 | ||
b5c7cde3 | 1733 | static __u8 |
42873b0a | 1734 | smb2_parse_lease_buf(void *buf, unsigned int *epoch) |
b5c7cde3 PS |
1735 | { |
1736 | struct create_lease *lc = (struct create_lease *)buf; | |
1737 | ||
42873b0a | 1738 | *epoch = 0; /* not used */ |
b5c7cde3 PS |
1739 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
1740 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
1741 | return le32_to_cpu(lc->lcontext.LeaseState); | |
1742 | } | |
1743 | ||
f047390a | 1744 | static __u8 |
42873b0a | 1745 | smb3_parse_lease_buf(void *buf, unsigned int *epoch) |
f047390a PS |
1746 | { |
1747 | struct create_lease_v2 *lc = (struct create_lease_v2 *)buf; | |
1748 | ||
42873b0a | 1749 | *epoch = le16_to_cpu(lc->lcontext.Epoch); |
f047390a PS |
1750 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
1751 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
1752 | return le32_to_cpu(lc->lcontext.LeaseState); | |
1753 | } | |
1754 | ||
7f6c5008 PS |
1755 | static unsigned int |
1756 | smb2_wp_retry_size(struct inode *inode) | |
1757 | { | |
1758 | return min_t(unsigned int, CIFS_SB(inode->i_sb)->wsize, | |
1759 | SMB2_MAX_BUFFER_SIZE); | |
1760 | } | |
1761 | ||
52755808 PS |
1762 | static bool |
1763 | smb2_dir_needs_close(struct cifsFileInfo *cfile) | |
1764 | { | |
1765 | return !cfile->invalidHandle; | |
1766 | } | |
1767 | ||
026e93dc PS |
1768 | static void |
1769 | fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, struct smb_rqst *old_rq) | |
1770 | { | |
1771 | struct smb2_sync_hdr *shdr = | |
1772 | (struct smb2_sync_hdr *)old_rq->rq_iov[1].iov_base; | |
1773 | unsigned int orig_len = get_rfc1002_length(old_rq->rq_iov[0].iov_base); | |
1774 | ||
1775 | memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr)); | |
1776 | tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; | |
1777 | tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); | |
1778 | tr_hdr->Flags = cpu_to_le16(0x01); | |
1779 | get_random_bytes(&tr_hdr->Nonce, SMB3_AES128CMM_NONCE); | |
1780 | memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8); | |
1781 | inc_rfc1001_len(tr_hdr, sizeof(struct smb2_transform_hdr) - 4); | |
1782 | inc_rfc1001_len(tr_hdr, orig_len); | |
1783 | } | |
1784 | ||
1785 | static struct scatterlist * | |
1786 | init_sg(struct smb_rqst *rqst, u8 *sign) | |
1787 | { | |
1788 | unsigned int sg_len = rqst->rq_nvec + rqst->rq_npages + 1; | |
1789 | unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 24; | |
1790 | struct scatterlist *sg; | |
1791 | unsigned int i; | |
1792 | unsigned int j; | |
1793 | ||
1794 | sg = kmalloc_array(sg_len, sizeof(struct scatterlist), GFP_KERNEL); | |
1795 | if (!sg) | |
1796 | return NULL; | |
1797 | ||
1798 | sg_init_table(sg, sg_len); | |
1799 | sg_set_buf(&sg[0], rqst->rq_iov[0].iov_base + 24, assoc_data_len); | |
1800 | for (i = 1; i < rqst->rq_nvec; i++) | |
1801 | sg_set_buf(&sg[i], rqst->rq_iov[i].iov_base, | |
1802 | rqst->rq_iov[i].iov_len); | |
1803 | for (j = 0; i < sg_len - 1; i++, j++) { | |
1804 | unsigned int len = (j < rqst->rq_npages - 1) ? rqst->rq_pagesz | |
1805 | : rqst->rq_tailsz; | |
1806 | sg_set_page(&sg[i], rqst->rq_pages[j], len, 0); | |
1807 | } | |
1808 | sg_set_buf(&sg[sg_len - 1], sign, SMB2_SIGNATURE_SIZE); | |
1809 | return sg; | |
1810 | } | |
1811 | ||
1812 | struct cifs_crypt_result { | |
1813 | int err; | |
1814 | struct completion completion; | |
1815 | }; | |
1816 | ||
1817 | static void cifs_crypt_complete(struct crypto_async_request *req, int err) | |
1818 | { | |
1819 | struct cifs_crypt_result *res = req->data; | |
1820 | ||
1821 | if (err == -EINPROGRESS) | |
1822 | return; | |
1823 | ||
1824 | res->err = err; | |
1825 | complete(&res->completion); | |
1826 | } | |
1827 | ||
61cfac6f PS |
1828 | static int |
1829 | smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key) | |
1830 | { | |
1831 | struct cifs_ses *ses; | |
1832 | u8 *ses_enc_key; | |
1833 | ||
1834 | spin_lock(&cifs_tcp_ses_lock); | |
1835 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { | |
1836 | if (ses->Suid != ses_id) | |
1837 | continue; | |
1838 | ses_enc_key = enc ? ses->smb3encryptionkey : | |
1839 | ses->smb3decryptionkey; | |
1840 | memcpy(key, ses_enc_key, SMB3_SIGN_KEY_SIZE); | |
1841 | spin_unlock(&cifs_tcp_ses_lock); | |
1842 | return 0; | |
1843 | } | |
1844 | spin_unlock(&cifs_tcp_ses_lock); | |
1845 | ||
1846 | return 1; | |
1847 | } | |
026e93dc PS |
1848 | /* |
1849 | * Encrypt or decrypt @rqst message. @rqst has the following format: | |
1850 | * iov[0] - transform header (associate data), | |
1851 | * iov[1-N] and pages - data to encrypt. | |
1852 | * On success return encrypted data in iov[1-N] and pages, leave iov[0] | |
1853 | * untouched. | |
1854 | */ | |
1855 | static int | |
1856 | crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc) | |
1857 | { | |
1858 | struct smb2_transform_hdr *tr_hdr = | |
1859 | (struct smb2_transform_hdr *)rqst->rq_iov[0].iov_base; | |
1860 | unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 24; | |
026e93dc PS |
1861 | int rc = 0; |
1862 | struct scatterlist *sg; | |
1863 | u8 sign[SMB2_SIGNATURE_SIZE] = {}; | |
61cfac6f | 1864 | u8 key[SMB3_SIGN_KEY_SIZE]; |
026e93dc PS |
1865 | struct aead_request *req; |
1866 | char *iv; | |
1867 | unsigned int iv_len; | |
1868 | struct cifs_crypt_result result = {0, }; | |
1869 | struct crypto_aead *tfm; | |
1870 | unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
1871 | ||
1872 | init_completion(&result.completion); | |
1873 | ||
61cfac6f PS |
1874 | rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key); |
1875 | if (rc) { | |
1876 | cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__, | |
1877 | enc ? "en" : "de"); | |
026e93dc PS |
1878 | return 0; |
1879 | } | |
1880 | ||
1881 | rc = smb3_crypto_aead_allocate(server); | |
1882 | if (rc) { | |
1883 | cifs_dbg(VFS, "%s: crypto alloc failed\n", __func__); | |
1884 | return rc; | |
1885 | } | |
1886 | ||
1887 | tfm = enc ? server->secmech.ccmaesencrypt : | |
1888 | server->secmech.ccmaesdecrypt; | |
61cfac6f | 1889 | rc = crypto_aead_setkey(tfm, key, SMB3_SIGN_KEY_SIZE); |
026e93dc PS |
1890 | if (rc) { |
1891 | cifs_dbg(VFS, "%s: Failed to set aead key %d\n", __func__, rc); | |
1892 | return rc; | |
1893 | } | |
1894 | ||
1895 | rc = crypto_aead_setauthsize(tfm, SMB2_SIGNATURE_SIZE); | |
1896 | if (rc) { | |
1897 | cifs_dbg(VFS, "%s: Failed to set authsize %d\n", __func__, rc); | |
1898 | return rc; | |
1899 | } | |
1900 | ||
1901 | req = aead_request_alloc(tfm, GFP_KERNEL); | |
1902 | if (!req) { | |
1903 | cifs_dbg(VFS, "%s: Failed to alloc aead request", __func__); | |
1904 | return -ENOMEM; | |
1905 | } | |
1906 | ||
1907 | if (!enc) { | |
1908 | memcpy(sign, &tr_hdr->Signature, SMB2_SIGNATURE_SIZE); | |
1909 | crypt_len += SMB2_SIGNATURE_SIZE; | |
1910 | } | |
1911 | ||
1912 | sg = init_sg(rqst, sign); | |
1913 | if (!sg) { | |
517a6e43 CJ |
1914 | cifs_dbg(VFS, "%s: Failed to init sg", __func__); |
1915 | rc = -ENOMEM; | |
026e93dc PS |
1916 | goto free_req; |
1917 | } | |
1918 | ||
1919 | iv_len = crypto_aead_ivsize(tfm); | |
1920 | iv = kzalloc(iv_len, GFP_KERNEL); | |
1921 | if (!iv) { | |
1922 | cifs_dbg(VFS, "%s: Failed to alloc IV", __func__); | |
517a6e43 | 1923 | rc = -ENOMEM; |
026e93dc PS |
1924 | goto free_sg; |
1925 | } | |
1926 | iv[0] = 3; | |
1927 | memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES128CMM_NONCE); | |
1928 | ||
1929 | aead_request_set_crypt(req, sg, sg, crypt_len, iv); | |
1930 | aead_request_set_ad(req, assoc_data_len); | |
1931 | ||
1932 | aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, | |
1933 | cifs_crypt_complete, &result); | |
1934 | ||
1935 | rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req); | |
1936 | ||
1937 | if (rc == -EINPROGRESS || rc == -EBUSY) { | |
1938 | wait_for_completion(&result.completion); | |
1939 | rc = result.err; | |
1940 | } | |
1941 | ||
1942 | if (!rc && enc) | |
1943 | memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE); | |
1944 | ||
1945 | kfree(iv); | |
1946 | free_sg: | |
1947 | kfree(sg); | |
1948 | free_req: | |
1949 | kfree(req); | |
1950 | return rc; | |
1951 | } | |
1952 | ||
1953 | static int | |
1954 | smb3_init_transform_rq(struct TCP_Server_Info *server, struct smb_rqst *new_rq, | |
1955 | struct smb_rqst *old_rq) | |
1956 | { | |
1957 | struct kvec *iov; | |
1958 | struct page **pages; | |
1959 | struct smb2_transform_hdr *tr_hdr; | |
1960 | unsigned int npages = old_rq->rq_npages; | |
1961 | int i; | |
1962 | int rc = -ENOMEM; | |
1963 | ||
1964 | pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); | |
1965 | if (!pages) | |
1966 | return rc; | |
1967 | ||
1968 | new_rq->rq_pages = pages; | |
1969 | new_rq->rq_npages = old_rq->rq_npages; | |
1970 | new_rq->rq_pagesz = old_rq->rq_pagesz; | |
1971 | new_rq->rq_tailsz = old_rq->rq_tailsz; | |
1972 | ||
1973 | for (i = 0; i < npages; i++) { | |
1974 | pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
1975 | if (!pages[i]) | |
1976 | goto err_free_pages; | |
1977 | } | |
1978 | ||
1979 | iov = kmalloc_array(old_rq->rq_nvec, sizeof(struct kvec), GFP_KERNEL); | |
1980 | if (!iov) | |
1981 | goto err_free_pages; | |
1982 | ||
1983 | /* copy all iovs from the old except the 1st one (rfc1002 length) */ | |
1984 | memcpy(&iov[1], &old_rq->rq_iov[1], | |
1985 | sizeof(struct kvec) * (old_rq->rq_nvec - 1)); | |
1986 | new_rq->rq_iov = iov; | |
1987 | new_rq->rq_nvec = old_rq->rq_nvec; | |
1988 | ||
1989 | tr_hdr = kmalloc(sizeof(struct smb2_transform_hdr), GFP_KERNEL); | |
1990 | if (!tr_hdr) | |
1991 | goto err_free_iov; | |
1992 | ||
1993 | /* fill the 1st iov with a transform header */ | |
1994 | fill_transform_hdr(tr_hdr, old_rq); | |
1995 | new_rq->rq_iov[0].iov_base = tr_hdr; | |
1996 | new_rq->rq_iov[0].iov_len = sizeof(struct smb2_transform_hdr); | |
1997 | ||
1998 | /* copy pages form the old */ | |
1999 | for (i = 0; i < npages; i++) { | |
2000 | char *dst = kmap(new_rq->rq_pages[i]); | |
2001 | char *src = kmap(old_rq->rq_pages[i]); | |
2002 | unsigned int len = (i < npages - 1) ? new_rq->rq_pagesz : | |
2003 | new_rq->rq_tailsz; | |
2004 | memcpy(dst, src, len); | |
2005 | kunmap(new_rq->rq_pages[i]); | |
2006 | kunmap(old_rq->rq_pages[i]); | |
2007 | } | |
2008 | ||
2009 | rc = crypt_message(server, new_rq, 1); | |
2010 | cifs_dbg(FYI, "encrypt message returned %d", rc); | |
2011 | if (rc) | |
2012 | goto err_free_tr_hdr; | |
2013 | ||
2014 | return rc; | |
2015 | ||
2016 | err_free_tr_hdr: | |
2017 | kfree(tr_hdr); | |
2018 | err_free_iov: | |
2019 | kfree(iov); | |
2020 | err_free_pages: | |
2021 | for (i = i - 1; i >= 0; i--) | |
2022 | put_page(pages[i]); | |
2023 | kfree(pages); | |
2024 | return rc; | |
2025 | } | |
2026 | ||
2027 | static void | |
2028 | smb3_free_transform_rq(struct smb_rqst *rqst) | |
2029 | { | |
2030 | int i = rqst->rq_npages - 1; | |
2031 | ||
2032 | for (; i >= 0; i--) | |
2033 | put_page(rqst->rq_pages[i]); | |
2034 | kfree(rqst->rq_pages); | |
2035 | /* free transform header */ | |
2036 | kfree(rqst->rq_iov[0].iov_base); | |
2037 | kfree(rqst->rq_iov); | |
2038 | } | |
2039 | ||
4326ed2f PS |
2040 | static int |
2041 | smb3_is_transform_hdr(void *buf) | |
2042 | { | |
2043 | struct smb2_transform_hdr *trhdr = buf; | |
2044 | ||
2045 | return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM; | |
2046 | } | |
2047 | ||
2048 | static int | |
2049 | decrypt_raw_data(struct TCP_Server_Info *server, char *buf, | |
2050 | unsigned int buf_data_size, struct page **pages, | |
2051 | unsigned int npages, unsigned int page_data_size) | |
2052 | { | |
2053 | struct kvec iov[2]; | |
2054 | struct smb_rqst rqst = {NULL}; | |
2055 | struct smb2_hdr *hdr; | |
2056 | int rc; | |
2057 | ||
2058 | iov[0].iov_base = buf; | |
2059 | iov[0].iov_len = sizeof(struct smb2_transform_hdr); | |
2060 | iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr); | |
2061 | iov[1].iov_len = buf_data_size; | |
2062 | ||
2063 | rqst.rq_iov = iov; | |
2064 | rqst.rq_nvec = 2; | |
2065 | rqst.rq_pages = pages; | |
2066 | rqst.rq_npages = npages; | |
2067 | rqst.rq_pagesz = PAGE_SIZE; | |
2068 | rqst.rq_tailsz = (page_data_size % PAGE_SIZE) ? : PAGE_SIZE; | |
2069 | ||
2070 | rc = crypt_message(server, &rqst, 0); | |
2071 | cifs_dbg(FYI, "decrypt message returned %d\n", rc); | |
2072 | ||
2073 | if (rc) | |
2074 | return rc; | |
2075 | ||
2076 | memmove(buf + 4, iov[1].iov_base, buf_data_size); | |
2077 | hdr = (struct smb2_hdr *)buf; | |
2078 | hdr->smb2_buf_length = cpu_to_be32(buf_data_size + page_data_size); | |
2079 | server->total_read = buf_data_size + page_data_size + 4; | |
2080 | ||
2081 | return rc; | |
2082 | } | |
2083 | ||
c42a6abe PS |
2084 | static int |
2085 | read_data_into_pages(struct TCP_Server_Info *server, struct page **pages, | |
2086 | unsigned int npages, unsigned int len) | |
2087 | { | |
2088 | int i; | |
2089 | int length; | |
2090 | ||
2091 | for (i = 0; i < npages; i++) { | |
2092 | struct page *page = pages[i]; | |
2093 | size_t n; | |
2094 | ||
2095 | n = len; | |
2096 | if (len >= PAGE_SIZE) { | |
2097 | /* enough data to fill the page */ | |
2098 | n = PAGE_SIZE; | |
2099 | len -= n; | |
2100 | } else { | |
2101 | zero_user(page, len, PAGE_SIZE - len); | |
2102 | len = 0; | |
2103 | } | |
2104 | length = cifs_read_page_from_socket(server, page, n); | |
2105 | if (length < 0) | |
2106 | return length; | |
2107 | server->total_read += length; | |
2108 | } | |
2109 | ||
2110 | return 0; | |
2111 | } | |
2112 | ||
2113 | static int | |
2114 | init_read_bvec(struct page **pages, unsigned int npages, unsigned int data_size, | |
2115 | unsigned int cur_off, struct bio_vec **page_vec) | |
2116 | { | |
2117 | struct bio_vec *bvec; | |
2118 | int i; | |
2119 | ||
2120 | bvec = kcalloc(npages, sizeof(struct bio_vec), GFP_KERNEL); | |
2121 | if (!bvec) | |
2122 | return -ENOMEM; | |
2123 | ||
2124 | for (i = 0; i < npages; i++) { | |
2125 | bvec[i].bv_page = pages[i]; | |
2126 | bvec[i].bv_offset = (i == 0) ? cur_off : 0; | |
2127 | bvec[i].bv_len = min_t(unsigned int, PAGE_SIZE, data_size); | |
2128 | data_size -= bvec[i].bv_len; | |
2129 | } | |
2130 | ||
2131 | if (data_size != 0) { | |
2132 | cifs_dbg(VFS, "%s: something went wrong\n", __func__); | |
2133 | kfree(bvec); | |
2134 | return -EIO; | |
2135 | } | |
2136 | ||
2137 | *page_vec = bvec; | |
2138 | return 0; | |
2139 | } | |
2140 | ||
4326ed2f PS |
2141 | static int |
2142 | handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, | |
2143 | char *buf, unsigned int buf_len, struct page **pages, | |
2144 | unsigned int npages, unsigned int page_data_size) | |
2145 | { | |
2146 | unsigned int data_offset; | |
2147 | unsigned int data_len; | |
c42a6abe PS |
2148 | unsigned int cur_off; |
2149 | unsigned int cur_page_idx; | |
2150 | unsigned int pad_len; | |
4326ed2f PS |
2151 | struct cifs_readdata *rdata = mid->callback_data; |
2152 | struct smb2_sync_hdr *shdr = get_sync_hdr(buf); | |
2153 | struct bio_vec *bvec = NULL; | |
2154 | struct iov_iter iter; | |
2155 | struct kvec iov; | |
2156 | int length; | |
2157 | ||
2158 | if (shdr->Command != SMB2_READ) { | |
2159 | cifs_dbg(VFS, "only big read responses are supported\n"); | |
2160 | return -ENOTSUPP; | |
2161 | } | |
2162 | ||
2163 | if (server->ops->is_status_pending && | |
2164 | server->ops->is_status_pending(buf, server, 0)) | |
2165 | return -1; | |
2166 | ||
2167 | rdata->result = server->ops->map_error(buf, false); | |
2168 | if (rdata->result != 0) { | |
2169 | cifs_dbg(FYI, "%s: server returned error %d\n", | |
2170 | __func__, rdata->result); | |
2171 | dequeue_mid(mid, rdata->result); | |
2172 | return 0; | |
2173 | } | |
2174 | ||
2175 | data_offset = server->ops->read_data_offset(buf) + 4; | |
2176 | data_len = server->ops->read_data_length(buf); | |
2177 | ||
2178 | if (data_offset < server->vals->read_rsp_size) { | |
2179 | /* | |
2180 | * win2k8 sometimes sends an offset of 0 when the read | |
2181 | * is beyond the EOF. Treat it as if the data starts just after | |
2182 | * the header. | |
2183 | */ | |
2184 | cifs_dbg(FYI, "%s: data offset (%u) inside read response header\n", | |
2185 | __func__, data_offset); | |
2186 | data_offset = server->vals->read_rsp_size; | |
2187 | } else if (data_offset > MAX_CIFS_SMALL_BUFFER_SIZE) { | |
2188 | /* data_offset is beyond the end of smallbuf */ | |
2189 | cifs_dbg(FYI, "%s: data offset (%u) beyond end of smallbuf\n", | |
2190 | __func__, data_offset); | |
2191 | rdata->result = -EIO; | |
2192 | dequeue_mid(mid, rdata->result); | |
2193 | return 0; | |
2194 | } | |
2195 | ||
c42a6abe PS |
2196 | pad_len = data_offset - server->vals->read_rsp_size; |
2197 | ||
4326ed2f PS |
2198 | if (buf_len <= data_offset) { |
2199 | /* read response payload is in pages */ | |
c42a6abe PS |
2200 | cur_page_idx = pad_len / PAGE_SIZE; |
2201 | cur_off = pad_len % PAGE_SIZE; | |
2202 | ||
2203 | if (cur_page_idx != 0) { | |
2204 | /* data offset is beyond the 1st page of response */ | |
2205 | cifs_dbg(FYI, "%s: data offset (%u) beyond 1st page of response\n", | |
2206 | __func__, data_offset); | |
2207 | rdata->result = -EIO; | |
2208 | dequeue_mid(mid, rdata->result); | |
2209 | return 0; | |
2210 | } | |
2211 | ||
2212 | if (data_len > page_data_size - pad_len) { | |
2213 | /* data_len is corrupt -- discard frame */ | |
2214 | rdata->result = -EIO; | |
2215 | dequeue_mid(mid, rdata->result); | |
2216 | return 0; | |
2217 | } | |
2218 | ||
2219 | rdata->result = init_read_bvec(pages, npages, page_data_size, | |
2220 | cur_off, &bvec); | |
2221 | if (rdata->result != 0) { | |
2222 | dequeue_mid(mid, rdata->result); | |
2223 | return 0; | |
2224 | } | |
2225 | ||
2226 | iov_iter_bvec(&iter, WRITE | ITER_BVEC, bvec, npages, data_len); | |
4326ed2f PS |
2227 | } else if (buf_len >= data_offset + data_len) { |
2228 | /* read response payload is in buf */ | |
2229 | WARN_ONCE(npages > 0, "read data can be either in buf or in pages"); | |
2230 | iov.iov_base = buf + data_offset; | |
2231 | iov.iov_len = data_len; | |
2232 | iov_iter_kvec(&iter, WRITE | ITER_KVEC, &iov, 1, data_len); | |
2233 | } else { | |
2234 | /* read response payload cannot be in both buf and pages */ | |
2235 | WARN_ONCE(1, "buf can not contain only a part of read data"); | |
2236 | rdata->result = -EIO; | |
2237 | dequeue_mid(mid, rdata->result); | |
2238 | return 0; | |
2239 | } | |
2240 | ||
2241 | /* set up first iov for signature check */ | |
2242 | rdata->iov[0].iov_base = buf; | |
2243 | rdata->iov[0].iov_len = 4; | |
2244 | rdata->iov[1].iov_base = buf + 4; | |
2245 | rdata->iov[1].iov_len = server->vals->read_rsp_size - 4; | |
2246 | cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", | |
2247 | rdata->iov[0].iov_base, server->vals->read_rsp_size); | |
2248 | ||
2249 | length = rdata->copy_into_pages(server, rdata, &iter); | |
2250 | ||
2251 | kfree(bvec); | |
2252 | ||
2253 | if (length < 0) | |
2254 | return length; | |
2255 | ||
2256 | dequeue_mid(mid, false); | |
2257 | return length; | |
2258 | } | |
2259 | ||
c42a6abe PS |
2260 | static int |
2261 | receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid) | |
2262 | { | |
2263 | char *buf = server->smallbuf; | |
2264 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; | |
2265 | unsigned int npages; | |
2266 | struct page **pages; | |
2267 | unsigned int len; | |
2268 | unsigned int buflen = get_rfc1002_length(buf) + 4; | |
2269 | int rc; | |
2270 | int i = 0; | |
2271 | ||
2272 | len = min_t(unsigned int, buflen, server->vals->read_rsp_size - 4 + | |
2273 | sizeof(struct smb2_transform_hdr)) - HEADER_SIZE(server) + 1; | |
2274 | ||
2275 | rc = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, len); | |
2276 | if (rc < 0) | |
2277 | return rc; | |
2278 | server->total_read += rc; | |
2279 | ||
2280 | len = le32_to_cpu(tr_hdr->OriginalMessageSize) + 4 - | |
2281 | server->vals->read_rsp_size; | |
2282 | npages = DIV_ROUND_UP(len, PAGE_SIZE); | |
2283 | ||
2284 | pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL); | |
2285 | if (!pages) { | |
2286 | rc = -ENOMEM; | |
2287 | goto discard_data; | |
2288 | } | |
2289 | ||
2290 | for (; i < npages; i++) { | |
2291 | pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM); | |
2292 | if (!pages[i]) { | |
2293 | rc = -ENOMEM; | |
2294 | goto discard_data; | |
2295 | } | |
2296 | } | |
2297 | ||
2298 | /* read read data into pages */ | |
2299 | rc = read_data_into_pages(server, pages, npages, len); | |
2300 | if (rc) | |
2301 | goto free_pages; | |
2302 | ||
350be257 | 2303 | rc = cifs_discard_remaining_data(server); |
c42a6abe PS |
2304 | if (rc) |
2305 | goto free_pages; | |
2306 | ||
2307 | rc = decrypt_raw_data(server, buf, server->vals->read_rsp_size - 4, | |
2308 | pages, npages, len); | |
2309 | if (rc) | |
2310 | goto free_pages; | |
2311 | ||
2312 | *mid = smb2_find_mid(server, buf); | |
2313 | if (*mid == NULL) | |
2314 | cifs_dbg(FYI, "mid not found\n"); | |
2315 | else { | |
2316 | cifs_dbg(FYI, "mid found\n"); | |
2317 | (*mid)->decrypted = true; | |
2318 | rc = handle_read_data(server, *mid, buf, | |
2319 | server->vals->read_rsp_size, | |
2320 | pages, npages, len); | |
2321 | } | |
2322 | ||
2323 | free_pages: | |
2324 | for (i = i - 1; i >= 0; i--) | |
2325 | put_page(pages[i]); | |
2326 | kfree(pages); | |
2327 | return rc; | |
2328 | discard_data: | |
350be257 | 2329 | cifs_discard_remaining_data(server); |
c42a6abe PS |
2330 | goto free_pages; |
2331 | } | |
2332 | ||
4326ed2f PS |
2333 | static int |
2334 | receive_encrypted_standard(struct TCP_Server_Info *server, | |
2335 | struct mid_q_entry **mid) | |
2336 | { | |
2337 | int length; | |
2338 | char *buf = server->smallbuf; | |
2339 | unsigned int pdu_length = get_rfc1002_length(buf); | |
2340 | unsigned int buf_size; | |
2341 | struct mid_q_entry *mid_entry; | |
2342 | ||
2343 | /* switch to large buffer if too big for a small one */ | |
2344 | if (pdu_length + 4 > MAX_CIFS_SMALL_BUFFER_SIZE) { | |
2345 | server->large_buf = true; | |
2346 | memcpy(server->bigbuf, buf, server->total_read); | |
2347 | buf = server->bigbuf; | |
2348 | } | |
2349 | ||
2350 | /* now read the rest */ | |
2351 | length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, | |
2352 | pdu_length - HEADER_SIZE(server) + 1 + 4); | |
2353 | if (length < 0) | |
2354 | return length; | |
2355 | server->total_read += length; | |
2356 | ||
2357 | buf_size = pdu_length + 4 - sizeof(struct smb2_transform_hdr); | |
2358 | length = decrypt_raw_data(server, buf, buf_size, NULL, 0, 0); | |
2359 | if (length) | |
2360 | return length; | |
2361 | ||
2362 | mid_entry = smb2_find_mid(server, buf); | |
2363 | if (mid_entry == NULL) | |
2364 | cifs_dbg(FYI, "mid not found\n"); | |
2365 | else { | |
2366 | cifs_dbg(FYI, "mid found\n"); | |
2367 | mid_entry->decrypted = true; | |
2368 | } | |
2369 | ||
2370 | *mid = mid_entry; | |
2371 | ||
2372 | if (mid_entry && mid_entry->handle) | |
2373 | return mid_entry->handle(server, mid_entry); | |
2374 | ||
2375 | return cifs_handle_standard(server, mid_entry); | |
2376 | } | |
2377 | ||
2378 | static int | |
2379 | smb3_receive_transform(struct TCP_Server_Info *server, struct mid_q_entry **mid) | |
2380 | { | |
2381 | char *buf = server->smallbuf; | |
2382 | unsigned int pdu_length = get_rfc1002_length(buf); | |
2383 | struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf; | |
2384 | unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize); | |
2385 | ||
2386 | if (pdu_length + 4 < sizeof(struct smb2_transform_hdr) + | |
2387 | sizeof(struct smb2_sync_hdr)) { | |
2388 | cifs_dbg(VFS, "Transform message is too small (%u)\n", | |
2389 | pdu_length); | |
2390 | cifs_reconnect(server); | |
2391 | wake_up(&server->response_q); | |
2392 | return -ECONNABORTED; | |
2393 | } | |
2394 | ||
2395 | if (pdu_length + 4 < orig_len + sizeof(struct smb2_transform_hdr)) { | |
2396 | cifs_dbg(VFS, "Transform message is broken\n"); | |
2397 | cifs_reconnect(server); | |
2398 | wake_up(&server->response_q); | |
2399 | return -ECONNABORTED; | |
2400 | } | |
2401 | ||
c42a6abe PS |
2402 | if (pdu_length + 4 > CIFSMaxBufSize + MAX_HEADER_SIZE(server)) |
2403 | return receive_encrypted_read(server, mid); | |
4326ed2f PS |
2404 | |
2405 | return receive_encrypted_standard(server, mid); | |
2406 | } | |
2407 | ||
2408 | int | |
2409 | smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid) | |
2410 | { | |
2411 | char *buf = server->large_buf ? server->bigbuf : server->smallbuf; | |
2412 | ||
2413 | return handle_read_data(server, mid, buf, get_rfc1002_length(buf) + 4, | |
2414 | NULL, 0, 0); | |
2415 | } | |
2416 | ||
53ef1016 | 2417 | struct smb_version_operations smb20_operations = { |
027e8eec | 2418 | .compare_fids = smb2_compare_fids, |
2dc7e1c0 | 2419 | .setup_request = smb2_setup_request, |
c95b8eed | 2420 | .setup_async_request = smb2_setup_async_request, |
2dc7e1c0 | 2421 | .check_receive = smb2_check_receive, |
28ea5290 PS |
2422 | .add_credits = smb2_add_credits, |
2423 | .set_credits = smb2_set_credits, | |
2424 | .get_credits_field = smb2_get_credits_field, | |
2425 | .get_credits = smb2_get_credits, | |
cb7e9eab | 2426 | .wait_mtu_credits = cifs_wait_mtu_credits, |
2dc7e1c0 | 2427 | .get_next_mid = smb2_get_next_mid, |
09a4707e PS |
2428 | .read_data_offset = smb2_read_data_offset, |
2429 | .read_data_length = smb2_read_data_length, | |
2430 | .map_error = map_smb2_to_linux_error, | |
093b2bda PS |
2431 | .find_mid = smb2_find_mid, |
2432 | .check_message = smb2_check_message, | |
2433 | .dump_detail = smb2_dump_detail, | |
d60622eb PS |
2434 | .clear_stats = smb2_clear_stats, |
2435 | .print_stats = smb2_print_stats, | |
983c88a4 | 2436 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 2437 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 2438 | .downgrade_oplock = smb2_downgrade_oplock, |
ec2e4523 PS |
2439 | .need_neg = smb2_need_neg, |
2440 | .negotiate = smb2_negotiate, | |
3a3bab50 PS |
2441 | .negotiate_wsize = smb2_negotiate_wsize, |
2442 | .negotiate_rsize = smb2_negotiate_rsize, | |
5478f9ba PS |
2443 | .sess_setup = SMB2_sess_setup, |
2444 | .logoff = SMB2_logoff, | |
faaf946a PS |
2445 | .tree_connect = SMB2_tcon, |
2446 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 2447 | .qfs_tcon = smb2_qfs_tcon, |
2503a0db | 2448 | .is_path_accessible = smb2_is_path_accessible, |
9094fad1 PS |
2449 | .can_echo = smb2_can_echo, |
2450 | .echo = SMB2_echo, | |
be4cb9e3 PS |
2451 | .query_path_info = smb2_query_path_info, |
2452 | .get_srv_inum = smb2_get_srv_inum, | |
b7546bc5 | 2453 | .query_file_info = smb2_query_file_info, |
c839ff24 PS |
2454 | .set_path_size = smb2_set_path_size, |
2455 | .set_file_size = smb2_set_file_size, | |
1feeaac7 | 2456 | .set_file_info = smb2_set_file_info, |
64a5cfa6 | 2457 | .set_compression = smb2_set_compression, |
a0e73183 PS |
2458 | .mkdir = smb2_mkdir, |
2459 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1a500f01 | 2460 | .rmdir = smb2_rmdir, |
cbe6f439 | 2461 | .unlink = smb2_unlink, |
35143eb5 | 2462 | .rename = smb2_rename_path, |
568798cc | 2463 | .create_hardlink = smb2_create_hardlink, |
b42bf888 | 2464 | .query_symlink = smb2_query_symlink, |
5b23c97d SP |
2465 | .query_mf_symlink = smb3_query_mf_symlink, |
2466 | .create_mf_symlink = smb3_create_mf_symlink, | |
f0df737e PS |
2467 | .open = smb2_open_file, |
2468 | .set_fid = smb2_set_fid, | |
2469 | .close = smb2_close_file, | |
7a5cfb19 | 2470 | .flush = smb2_flush_file, |
09a4707e | 2471 | .async_readv = smb2_async_readv, |
33319141 | 2472 | .async_writev = smb2_async_writev, |
d8e05039 | 2473 | .sync_read = smb2_sync_read, |
009d3443 | 2474 | .sync_write = smb2_sync_write, |
d324f08d PS |
2475 | .query_dir_first = smb2_query_dir_first, |
2476 | .query_dir_next = smb2_query_dir_next, | |
2477 | .close_dir = smb2_close_dir, | |
2478 | .calc_smb_size = smb2_calc_size, | |
2e44b288 | 2479 | .is_status_pending = smb2_is_status_pending, |
983c88a4 | 2480 | .oplock_response = smb2_oplock_response, |
6fc05c25 | 2481 | .queryfs = smb2_queryfs, |
f7ba7fe6 PS |
2482 | .mand_lock = smb2_mand_lock, |
2483 | .mand_unlock_range = smb2_unlock_range, | |
b140799a | 2484 | .push_mand_locks = smb2_push_mandatory_locks, |
b8c32dbb PS |
2485 | .get_lease_key = smb2_get_lease_key, |
2486 | .set_lease_key = smb2_set_lease_key, | |
2487 | .new_lease_key = smb2_new_lease_key, | |
38107d45 | 2488 | .calc_signature = smb2_calc_signature, |
53ef1016 PS |
2489 | .is_read_op = smb2_is_read_op, |
2490 | .set_oplock_level = smb2_set_oplock_level, | |
a41a28bd | 2491 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 2492 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 2493 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 2494 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 2495 | .dir_needs_close = smb2_dir_needs_close, |
9d49640a | 2496 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 2497 | .select_sectype = smb2_select_sectype, |
2f1afe25 SP |
2498 | #ifdef CONFIG_CIFS_ACL |
2499 | .get_acl = get_smb2_acl, | |
2500 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
2501 | /* .set_acl = set_smb3_acl, */ | |
2502 | #endif /* CIFS_ACL */ | |
38107d45 SF |
2503 | }; |
2504 | ||
53ef1016 PS |
2505 | struct smb_version_operations smb21_operations = { |
2506 | .compare_fids = smb2_compare_fids, | |
2507 | .setup_request = smb2_setup_request, | |
2508 | .setup_async_request = smb2_setup_async_request, | |
2509 | .check_receive = smb2_check_receive, | |
2510 | .add_credits = smb2_add_credits, | |
2511 | .set_credits = smb2_set_credits, | |
2512 | .get_credits_field = smb2_get_credits_field, | |
2513 | .get_credits = smb2_get_credits, | |
cb7e9eab | 2514 | .wait_mtu_credits = smb2_wait_mtu_credits, |
53ef1016 PS |
2515 | .get_next_mid = smb2_get_next_mid, |
2516 | .read_data_offset = smb2_read_data_offset, | |
2517 | .read_data_length = smb2_read_data_length, | |
2518 | .map_error = map_smb2_to_linux_error, | |
2519 | .find_mid = smb2_find_mid, | |
2520 | .check_message = smb2_check_message, | |
2521 | .dump_detail = smb2_dump_detail, | |
2522 | .clear_stats = smb2_clear_stats, | |
2523 | .print_stats = smb2_print_stats, | |
2524 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 2525 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 2526 | .downgrade_oplock = smb2_downgrade_oplock, |
53ef1016 PS |
2527 | .need_neg = smb2_need_neg, |
2528 | .negotiate = smb2_negotiate, | |
2529 | .negotiate_wsize = smb2_negotiate_wsize, | |
2530 | .negotiate_rsize = smb2_negotiate_rsize, | |
2531 | .sess_setup = SMB2_sess_setup, | |
2532 | .logoff = SMB2_logoff, | |
2533 | .tree_connect = SMB2_tcon, | |
2534 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 2535 | .qfs_tcon = smb2_qfs_tcon, |
53ef1016 PS |
2536 | .is_path_accessible = smb2_is_path_accessible, |
2537 | .can_echo = smb2_can_echo, | |
2538 | .echo = SMB2_echo, | |
2539 | .query_path_info = smb2_query_path_info, | |
2540 | .get_srv_inum = smb2_get_srv_inum, | |
2541 | .query_file_info = smb2_query_file_info, | |
2542 | .set_path_size = smb2_set_path_size, | |
2543 | .set_file_size = smb2_set_file_size, | |
2544 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 2545 | .set_compression = smb2_set_compression, |
53ef1016 PS |
2546 | .mkdir = smb2_mkdir, |
2547 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
2548 | .rmdir = smb2_rmdir, | |
2549 | .unlink = smb2_unlink, | |
2550 | .rename = smb2_rename_path, | |
2551 | .create_hardlink = smb2_create_hardlink, | |
2552 | .query_symlink = smb2_query_symlink, | |
c22870ea | 2553 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 2554 | .create_mf_symlink = smb3_create_mf_symlink, |
53ef1016 PS |
2555 | .open = smb2_open_file, |
2556 | .set_fid = smb2_set_fid, | |
2557 | .close = smb2_close_file, | |
2558 | .flush = smb2_flush_file, | |
2559 | .async_readv = smb2_async_readv, | |
2560 | .async_writev = smb2_async_writev, | |
2561 | .sync_read = smb2_sync_read, | |
2562 | .sync_write = smb2_sync_write, | |
2563 | .query_dir_first = smb2_query_dir_first, | |
2564 | .query_dir_next = smb2_query_dir_next, | |
2565 | .close_dir = smb2_close_dir, | |
2566 | .calc_smb_size = smb2_calc_size, | |
2567 | .is_status_pending = smb2_is_status_pending, | |
2568 | .oplock_response = smb2_oplock_response, | |
2569 | .queryfs = smb2_queryfs, | |
2570 | .mand_lock = smb2_mand_lock, | |
2571 | .mand_unlock_range = smb2_unlock_range, | |
2572 | .push_mand_locks = smb2_push_mandatory_locks, | |
2573 | .get_lease_key = smb2_get_lease_key, | |
2574 | .set_lease_key = smb2_set_lease_key, | |
2575 | .new_lease_key = smb2_new_lease_key, | |
2576 | .calc_signature = smb2_calc_signature, | |
2577 | .is_read_op = smb21_is_read_op, | |
2578 | .set_oplock_level = smb21_set_oplock_level, | |
a41a28bd | 2579 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 2580 | .parse_lease_buf = smb2_parse_lease_buf, |
312bbc59 | 2581 | .copychunk_range = smb2_copychunk_range, |
7f6c5008 | 2582 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 2583 | .dir_needs_close = smb2_dir_needs_close, |
834170c8 | 2584 | .enum_snapshots = smb3_enum_snapshots, |
9d49640a | 2585 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 2586 | .select_sectype = smb2_select_sectype, |
2f1afe25 SP |
2587 | #ifdef CONFIG_CIFS_ACL |
2588 | .get_acl = get_smb2_acl, | |
2589 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
2590 | /* .set_acl = set_smb3_acl, */ | |
2591 | #endif /* CIFS_ACL */ | |
53ef1016 | 2592 | }; |
38107d45 SF |
2593 | |
2594 | struct smb_version_operations smb30_operations = { | |
2595 | .compare_fids = smb2_compare_fids, | |
2596 | .setup_request = smb2_setup_request, | |
2597 | .setup_async_request = smb2_setup_async_request, | |
2598 | .check_receive = smb2_check_receive, | |
2599 | .add_credits = smb2_add_credits, | |
2600 | .set_credits = smb2_set_credits, | |
2601 | .get_credits_field = smb2_get_credits_field, | |
2602 | .get_credits = smb2_get_credits, | |
cb7e9eab | 2603 | .wait_mtu_credits = smb2_wait_mtu_credits, |
38107d45 SF |
2604 | .get_next_mid = smb2_get_next_mid, |
2605 | .read_data_offset = smb2_read_data_offset, | |
2606 | .read_data_length = smb2_read_data_length, | |
2607 | .map_error = map_smb2_to_linux_error, | |
2608 | .find_mid = smb2_find_mid, | |
2609 | .check_message = smb2_check_message, | |
2610 | .dump_detail = smb2_dump_detail, | |
2611 | .clear_stats = smb2_clear_stats, | |
2612 | .print_stats = smb2_print_stats, | |
769ee6a4 | 2613 | .dump_share_caps = smb2_dump_share_caps, |
38107d45 | 2614 | .is_oplock_break = smb2_is_valid_oplock_break, |
38bd4906 | 2615 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
c11f1df5 | 2616 | .downgrade_oplock = smb2_downgrade_oplock, |
38107d45 SF |
2617 | .need_neg = smb2_need_neg, |
2618 | .negotiate = smb2_negotiate, | |
2619 | .negotiate_wsize = smb2_negotiate_wsize, | |
2620 | .negotiate_rsize = smb2_negotiate_rsize, | |
2621 | .sess_setup = SMB2_sess_setup, | |
2622 | .logoff = SMB2_logoff, | |
2623 | .tree_connect = SMB2_tcon, | |
2624 | .tree_disconnect = SMB2_tdis, | |
af6a12ea | 2625 | .qfs_tcon = smb3_qfs_tcon, |
38107d45 SF |
2626 | .is_path_accessible = smb2_is_path_accessible, |
2627 | .can_echo = smb2_can_echo, | |
2628 | .echo = SMB2_echo, | |
2629 | .query_path_info = smb2_query_path_info, | |
2630 | .get_srv_inum = smb2_get_srv_inum, | |
2631 | .query_file_info = smb2_query_file_info, | |
2632 | .set_path_size = smb2_set_path_size, | |
2633 | .set_file_size = smb2_set_file_size, | |
2634 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 2635 | .set_compression = smb2_set_compression, |
38107d45 SF |
2636 | .mkdir = smb2_mkdir, |
2637 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
2638 | .rmdir = smb2_rmdir, | |
2639 | .unlink = smb2_unlink, | |
2640 | .rename = smb2_rename_path, | |
2641 | .create_hardlink = smb2_create_hardlink, | |
b42bf888 | 2642 | .query_symlink = smb2_query_symlink, |
c22870ea | 2643 | .query_mf_symlink = smb3_query_mf_symlink, |
5ab97578 | 2644 | .create_mf_symlink = smb3_create_mf_symlink, |
38107d45 SF |
2645 | .open = smb2_open_file, |
2646 | .set_fid = smb2_set_fid, | |
2647 | .close = smb2_close_file, | |
2648 | .flush = smb2_flush_file, | |
2649 | .async_readv = smb2_async_readv, | |
2650 | .async_writev = smb2_async_writev, | |
2651 | .sync_read = smb2_sync_read, | |
2652 | .sync_write = smb2_sync_write, | |
2653 | .query_dir_first = smb2_query_dir_first, | |
2654 | .query_dir_next = smb2_query_dir_next, | |
2655 | .close_dir = smb2_close_dir, | |
2656 | .calc_smb_size = smb2_calc_size, | |
2657 | .is_status_pending = smb2_is_status_pending, | |
2658 | .oplock_response = smb2_oplock_response, | |
2659 | .queryfs = smb2_queryfs, | |
2660 | .mand_lock = smb2_mand_lock, | |
2661 | .mand_unlock_range = smb2_unlock_range, | |
2662 | .push_mand_locks = smb2_push_mandatory_locks, | |
2663 | .get_lease_key = smb2_get_lease_key, | |
2664 | .set_lease_key = smb2_set_lease_key, | |
2665 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 2666 | .generate_signingkey = generate_smb30signingkey, |
38107d45 | 2667 | .calc_signature = smb3_calc_signature, |
b3152e2c | 2668 | .set_integrity = smb3_set_integrity, |
53ef1016 | 2669 | .is_read_op = smb21_is_read_op, |
42873b0a | 2670 | .set_oplock_level = smb3_set_oplock_level, |
f047390a PS |
2671 | .create_lease_buf = smb3_create_lease_buf, |
2672 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 2673 | .copychunk_range = smb2_copychunk_range, |
ca9e7a1c | 2674 | .duplicate_extents = smb2_duplicate_extents, |
ff1c038a | 2675 | .validate_negotiate = smb3_validate_negotiate, |
7f6c5008 | 2676 | .wp_retry_size = smb2_wp_retry_size, |
52755808 | 2677 | .dir_needs_close = smb2_dir_needs_close, |
31742c5a | 2678 | .fallocate = smb3_fallocate, |
834170c8 | 2679 | .enum_snapshots = smb3_enum_snapshots, |
026e93dc PS |
2680 | .init_transform_rq = smb3_init_transform_rq, |
2681 | .free_transform_rq = smb3_free_transform_rq, | |
4326ed2f PS |
2682 | .is_transform_hdr = smb3_is_transform_hdr, |
2683 | .receive_transform = smb3_receive_transform, | |
9d49640a | 2684 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 2685 | .select_sectype = smb2_select_sectype, |
2f1afe25 SP |
2686 | #ifdef CONFIG_CIFS_ACL |
2687 | .get_acl = get_smb2_acl, | |
2688 | .get_acl_by_fid = get_smb2_acl_by_fid, | |
2689 | /* .set_acl = set_smb3_acl, */ | |
2690 | #endif /* CIFS_ACL */ | |
1080ef75 SF |
2691 | }; |
2692 | ||
aab1893d SF |
2693 | #ifdef CONFIG_CIFS_SMB311 |
2694 | struct smb_version_operations smb311_operations = { | |
2695 | .compare_fids = smb2_compare_fids, | |
2696 | .setup_request = smb2_setup_request, | |
2697 | .setup_async_request = smb2_setup_async_request, | |
2698 | .check_receive = smb2_check_receive, | |
2699 | .add_credits = smb2_add_credits, | |
2700 | .set_credits = smb2_set_credits, | |
2701 | .get_credits_field = smb2_get_credits_field, | |
2702 | .get_credits = smb2_get_credits, | |
2703 | .wait_mtu_credits = smb2_wait_mtu_credits, | |
2704 | .get_next_mid = smb2_get_next_mid, | |
2705 | .read_data_offset = smb2_read_data_offset, | |
2706 | .read_data_length = smb2_read_data_length, | |
2707 | .map_error = map_smb2_to_linux_error, | |
2708 | .find_mid = smb2_find_mid, | |
2709 | .check_message = smb2_check_message, | |
2710 | .dump_detail = smb2_dump_detail, | |
2711 | .clear_stats = smb2_clear_stats, | |
2712 | .print_stats = smb2_print_stats, | |
2713 | .dump_share_caps = smb2_dump_share_caps, | |
2714 | .is_oplock_break = smb2_is_valid_oplock_break, | |
38bd4906 | 2715 | .handle_cancelled_mid = smb2_handle_cancelled_mid, |
aab1893d SF |
2716 | .downgrade_oplock = smb2_downgrade_oplock, |
2717 | .need_neg = smb2_need_neg, | |
2718 | .negotiate = smb2_negotiate, | |
2719 | .negotiate_wsize = smb2_negotiate_wsize, | |
2720 | .negotiate_rsize = smb2_negotiate_rsize, | |
2721 | .sess_setup = SMB2_sess_setup, | |
2722 | .logoff = SMB2_logoff, | |
2723 | .tree_connect = SMB2_tcon, | |
2724 | .tree_disconnect = SMB2_tdis, | |
2725 | .qfs_tcon = smb3_qfs_tcon, | |
2726 | .is_path_accessible = smb2_is_path_accessible, | |
2727 | .can_echo = smb2_can_echo, | |
2728 | .echo = SMB2_echo, | |
2729 | .query_path_info = smb2_query_path_info, | |
2730 | .get_srv_inum = smb2_get_srv_inum, | |
2731 | .query_file_info = smb2_query_file_info, | |
2732 | .set_path_size = smb2_set_path_size, | |
2733 | .set_file_size = smb2_set_file_size, | |
2734 | .set_file_info = smb2_set_file_info, | |
2735 | .set_compression = smb2_set_compression, | |
2736 | .mkdir = smb2_mkdir, | |
2737 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
2738 | .rmdir = smb2_rmdir, | |
2739 | .unlink = smb2_unlink, | |
2740 | .rename = smb2_rename_path, | |
2741 | .create_hardlink = smb2_create_hardlink, | |
2742 | .query_symlink = smb2_query_symlink, | |
2743 | .query_mf_symlink = smb3_query_mf_symlink, | |
2744 | .create_mf_symlink = smb3_create_mf_symlink, | |
2745 | .open = smb2_open_file, | |
2746 | .set_fid = smb2_set_fid, | |
2747 | .close = smb2_close_file, | |
2748 | .flush = smb2_flush_file, | |
2749 | .async_readv = smb2_async_readv, | |
2750 | .async_writev = smb2_async_writev, | |
2751 | .sync_read = smb2_sync_read, | |
2752 | .sync_write = smb2_sync_write, | |
2753 | .query_dir_first = smb2_query_dir_first, | |
2754 | .query_dir_next = smb2_query_dir_next, | |
2755 | .close_dir = smb2_close_dir, | |
2756 | .calc_smb_size = smb2_calc_size, | |
2757 | .is_status_pending = smb2_is_status_pending, | |
2758 | .oplock_response = smb2_oplock_response, | |
2759 | .queryfs = smb2_queryfs, | |
2760 | .mand_lock = smb2_mand_lock, | |
2761 | .mand_unlock_range = smb2_unlock_range, | |
2762 | .push_mand_locks = smb2_push_mandatory_locks, | |
2763 | .get_lease_key = smb2_get_lease_key, | |
2764 | .set_lease_key = smb2_set_lease_key, | |
2765 | .new_lease_key = smb2_new_lease_key, | |
373512ec | 2766 | .generate_signingkey = generate_smb311signingkey, |
aab1893d | 2767 | .calc_signature = smb3_calc_signature, |
b3152e2c | 2768 | .set_integrity = smb3_set_integrity, |
aab1893d SF |
2769 | .is_read_op = smb21_is_read_op, |
2770 | .set_oplock_level = smb3_set_oplock_level, | |
2771 | .create_lease_buf = smb3_create_lease_buf, | |
2772 | .parse_lease_buf = smb3_parse_lease_buf, | |
312bbc59 | 2773 | .copychunk_range = smb2_copychunk_range, |
02b16665 | 2774 | .duplicate_extents = smb2_duplicate_extents, |
aab1893d SF |
2775 | /* .validate_negotiate = smb3_validate_negotiate, */ /* not used in 3.11 */ |
2776 | .wp_retry_size = smb2_wp_retry_size, | |
2777 | .dir_needs_close = smb2_dir_needs_close, | |
2778 | .fallocate = smb3_fallocate, | |
834170c8 | 2779 | .enum_snapshots = smb3_enum_snapshots, |
026e93dc PS |
2780 | .init_transform_rq = smb3_init_transform_rq, |
2781 | .free_transform_rq = smb3_free_transform_rq, | |
4326ed2f PS |
2782 | .is_transform_hdr = smb3_is_transform_hdr, |
2783 | .receive_transform = smb3_receive_transform, | |
9d49640a | 2784 | .get_dfs_refer = smb2_get_dfs_refer, |
ef65aaed | 2785 | .select_sectype = smb2_select_sectype, |
aab1893d SF |
2786 | }; |
2787 | #endif /* CIFS_SMB311 */ | |
2788 | ||
dd446b16 SF |
2789 | struct smb_version_values smb20_values = { |
2790 | .version_string = SMB20_VERSION_STRING, | |
2791 | .protocol_id = SMB20_PROT_ID, | |
2792 | .req_capabilities = 0, /* MBZ */ | |
2793 | .large_lock_type = 0, | |
2794 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
2795 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
2796 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
2797 | .header_size = sizeof(struct smb2_hdr), | |
2798 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
2799 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
2800 | .lock_cmd = SMB2_LOCK, | |
2801 | .cap_unix = 0, | |
2802 | .cap_nt_find = SMB2_NT_FIND, | |
2803 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
2804 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
2805 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 2806 | .create_lease_size = sizeof(struct create_lease), |
dd446b16 SF |
2807 | }; |
2808 | ||
1080ef75 SF |
2809 | struct smb_version_values smb21_values = { |
2810 | .version_string = SMB21_VERSION_STRING, | |
e4aa25e7 SF |
2811 | .protocol_id = SMB21_PROT_ID, |
2812 | .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */ | |
2813 | .large_lock_type = 0, | |
2814 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
2815 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
2816 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
2817 | .header_size = sizeof(struct smb2_hdr), | |
2818 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
2819 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
2820 | .lock_cmd = SMB2_LOCK, | |
2821 | .cap_unix = 0, | |
2822 | .cap_nt_find = SMB2_NT_FIND, | |
2823 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
2824 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
2825 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 2826 | .create_lease_size = sizeof(struct create_lease), |
e4aa25e7 SF |
2827 | }; |
2828 | ||
2829 | struct smb_version_values smb30_values = { | |
2830 | .version_string = SMB30_VERSION_STRING, | |
2831 | .protocol_id = SMB30_PROT_ID, | |
373512ec | 2832 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, |
027e8eec PS |
2833 | .large_lock_type = 0, |
2834 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
2835 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
2836 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
093b2bda PS |
2837 | .header_size = sizeof(struct smb2_hdr), |
2838 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
09a4707e | 2839 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, |
2dc7e1c0 | 2840 | .lock_cmd = SMB2_LOCK, |
29e20f9c PS |
2841 | .cap_unix = 0, |
2842 | .cap_nt_find = SMB2_NT_FIND, | |
2843 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
2844 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
2845 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 2846 | .create_lease_size = sizeof(struct create_lease_v2), |
1080ef75 | 2847 | }; |
20b6d8b4 SF |
2848 | |
2849 | struct smb_version_values smb302_values = { | |
2850 | .version_string = SMB302_VERSION_STRING, | |
2851 | .protocol_id = SMB302_PROT_ID, | |
373512ec | 2852 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, |
20b6d8b4 SF |
2853 | .large_lock_type = 0, |
2854 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
2855 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
2856 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
2857 | .header_size = sizeof(struct smb2_hdr), | |
2858 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
2859 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
2860 | .lock_cmd = SMB2_LOCK, | |
2861 | .cap_unix = 0, | |
2862 | .cap_nt_find = SMB2_NT_FIND, | |
2863 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
2864 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
2865 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 2866 | .create_lease_size = sizeof(struct create_lease_v2), |
20b6d8b4 | 2867 | }; |
5f7fbf73 SF |
2868 | |
2869 | #ifdef CONFIG_CIFS_SMB311 | |
2870 | struct smb_version_values smb311_values = { | |
2871 | .version_string = SMB311_VERSION_STRING, | |
2872 | .protocol_id = SMB311_PROT_ID, | |
1955880b | 2873 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION, |
5f7fbf73 SF |
2874 | .large_lock_type = 0, |
2875 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
2876 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
2877 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
2878 | .header_size = sizeof(struct smb2_hdr), | |
2879 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
2880 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
2881 | .lock_cmd = SMB2_LOCK, | |
2882 | .cap_unix = 0, | |
2883 | .cap_nt_find = SMB2_NT_FIND, | |
2884 | .cap_large_files = SMB2_LARGE_FILES, | |
2885 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
2886 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
2887 | .create_lease_size = sizeof(struct create_lease_v2), | |
2888 | }; | |
2889 | #endif /* SMB311 */ |