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> |
1080ef75 | 22 | #include "cifsglob.h" |
2dc7e1c0 PS |
23 | #include "smb2pdu.h" |
24 | #include "smb2proto.h" | |
28ea5290 PS |
25 | #include "cifsproto.h" |
26 | #include "cifs_debug.h" | |
b42bf888 | 27 | #include "cifs_unicode.h" |
2e44b288 | 28 | #include "smb2status.h" |
6fc05c25 | 29 | #include "smb2glob.h" |
28ea5290 PS |
30 | |
31 | static int | |
32 | change_conf(struct TCP_Server_Info *server) | |
33 | { | |
34 | server->credits += server->echo_credits + server->oplock_credits; | |
35 | server->oplock_credits = server->echo_credits = 0; | |
36 | switch (server->credits) { | |
37 | case 0: | |
38 | return -1; | |
39 | case 1: | |
40 | server->echoes = false; | |
41 | server->oplocks = false; | |
f96637be | 42 | cifs_dbg(VFS, "disabling echoes and oplocks\n"); |
28ea5290 PS |
43 | break; |
44 | case 2: | |
45 | server->echoes = true; | |
46 | server->oplocks = false; | |
47 | server->echo_credits = 1; | |
f96637be | 48 | cifs_dbg(FYI, "disabling oplocks\n"); |
28ea5290 PS |
49 | break; |
50 | default: | |
51 | server->echoes = true; | |
52 | server->oplocks = true; | |
53 | server->echo_credits = 1; | |
54 | server->oplock_credits = 1; | |
55 | } | |
56 | server->credits -= server->echo_credits + server->oplock_credits; | |
57 | return 0; | |
58 | } | |
59 | ||
60 | static void | |
61 | smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add, | |
62 | const int optype) | |
63 | { | |
64 | int *val, rc = 0; | |
65 | spin_lock(&server->req_lock); | |
66 | val = server->ops->get_credits_field(server, optype); | |
67 | *val += add; | |
68 | server->in_flight--; | |
ec2e4523 | 69 | if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP) |
28ea5290 | 70 | rc = change_conf(server); |
983c88a4 PS |
71 | /* |
72 | * Sometimes server returns 0 credits on oplock break ack - we need to | |
73 | * rebalance credits in this case. | |
74 | */ | |
75 | else if (server->in_flight > 0 && server->oplock_credits == 0 && | |
76 | server->oplocks) { | |
77 | if (server->credits > 1) { | |
78 | server->credits--; | |
79 | server->oplock_credits++; | |
80 | } | |
81 | } | |
28ea5290 PS |
82 | spin_unlock(&server->req_lock); |
83 | wake_up(&server->request_q); | |
84 | if (rc) | |
85 | cifs_reconnect(server); | |
86 | } | |
87 | ||
88 | static void | |
89 | smb2_set_credits(struct TCP_Server_Info *server, const int val) | |
90 | { | |
91 | spin_lock(&server->req_lock); | |
92 | server->credits = val; | |
93 | spin_unlock(&server->req_lock); | |
94 | } | |
95 | ||
96 | static int * | |
97 | smb2_get_credits_field(struct TCP_Server_Info *server, const int optype) | |
98 | { | |
99 | switch (optype) { | |
100 | case CIFS_ECHO_OP: | |
101 | return &server->echo_credits; | |
102 | case CIFS_OBREAK_OP: | |
103 | return &server->oplock_credits; | |
104 | default: | |
105 | return &server->credits; | |
106 | } | |
107 | } | |
108 | ||
109 | static unsigned int | |
110 | smb2_get_credits(struct mid_q_entry *mid) | |
111 | { | |
112 | return le16_to_cpu(((struct smb2_hdr *)mid->resp_buf)->CreditRequest); | |
113 | } | |
2dc7e1c0 PS |
114 | |
115 | static __u64 | |
116 | smb2_get_next_mid(struct TCP_Server_Info *server) | |
117 | { | |
118 | __u64 mid; | |
119 | /* for SMB2 we need the current value */ | |
120 | spin_lock(&GlobalMid_Lock); | |
121 | mid = server->CurrentMid++; | |
122 | spin_unlock(&GlobalMid_Lock); | |
123 | return mid; | |
124 | } | |
1080ef75 | 125 | |
093b2bda PS |
126 | static struct mid_q_entry * |
127 | smb2_find_mid(struct TCP_Server_Info *server, char *buf) | |
128 | { | |
129 | struct mid_q_entry *mid; | |
130 | struct smb2_hdr *hdr = (struct smb2_hdr *)buf; | |
131 | ||
132 | spin_lock(&GlobalMid_Lock); | |
133 | list_for_each_entry(mid, &server->pending_mid_q, qhead) { | |
134 | if ((mid->mid == hdr->MessageId) && | |
135 | (mid->mid_state == MID_REQUEST_SUBMITTED) && | |
136 | (mid->command == hdr->Command)) { | |
137 | spin_unlock(&GlobalMid_Lock); | |
138 | return mid; | |
139 | } | |
140 | } | |
141 | spin_unlock(&GlobalMid_Lock); | |
142 | return NULL; | |
143 | } | |
144 | ||
145 | static void | |
146 | smb2_dump_detail(void *buf) | |
147 | { | |
148 | #ifdef CONFIG_CIFS_DEBUG2 | |
149 | struct smb2_hdr *smb = (struct smb2_hdr *)buf; | |
150 | ||
f96637be JP |
151 | cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n", |
152 | smb->Command, smb->Status, smb->Flags, smb->MessageId, | |
153 | smb->ProcessId); | |
154 | cifs_dbg(VFS, "smb buf %p len %u\n", smb, smb2_calc_size(smb)); | |
093b2bda PS |
155 | #endif |
156 | } | |
157 | ||
ec2e4523 PS |
158 | static bool |
159 | smb2_need_neg(struct TCP_Server_Info *server) | |
160 | { | |
161 | return server->max_read == 0; | |
162 | } | |
163 | ||
164 | static int | |
165 | smb2_negotiate(const unsigned int xid, struct cifs_ses *ses) | |
166 | { | |
167 | int rc; | |
168 | ses->server->CurrentMid = 0; | |
169 | rc = SMB2_negotiate(xid, ses); | |
170 | /* BB we probably don't need to retry with modern servers */ | |
171 | if (rc == -EAGAIN) | |
172 | rc = -EHOSTDOWN; | |
173 | return rc; | |
174 | } | |
175 | ||
3a3bab50 PS |
176 | static unsigned int |
177 | smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
178 | { | |
179 | struct TCP_Server_Info *server = tcon->ses->server; | |
180 | unsigned int wsize; | |
181 | ||
182 | /* start with specified wsize, or default */ | |
183 | wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE; | |
184 | wsize = min_t(unsigned int, wsize, server->max_write); | |
185 | /* | |
186 | * limit write size to 2 ** 16, because we don't support multicredit | |
187 | * requests now. | |
188 | */ | |
189 | wsize = min_t(unsigned int, wsize, 2 << 15); | |
190 | ||
3a3bab50 PS |
191 | return wsize; |
192 | } | |
193 | ||
194 | static unsigned int | |
195 | smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info) | |
196 | { | |
197 | struct TCP_Server_Info *server = tcon->ses->server; | |
198 | unsigned int rsize; | |
199 | ||
200 | /* start with specified rsize, or default */ | |
201 | rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE; | |
202 | rsize = min_t(unsigned int, rsize, server->max_read); | |
203 | /* | |
204 | * limit write size to 2 ** 16, because we don't support multicredit | |
205 | * requests now. | |
206 | */ | |
207 | rsize = min_t(unsigned int, rsize, 2 << 15); | |
208 | ||
3a3bab50 PS |
209 | return rsize; |
210 | } | |
211 | ||
c481e9fe SF |
212 | #ifdef CONFIG_CIFS_STATS2 |
213 | static int | |
214 | SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon) | |
215 | { | |
216 | int rc; | |
217 | unsigned int ret_data_len = 0; | |
218 | struct network_interface_info_ioctl_rsp *out_buf; | |
219 | ||
220 | rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID, | |
221 | FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */, | |
222 | NULL /* no data input */, 0 /* no data input */, | |
223 | (char **)&out_buf, &ret_data_len); | |
224 | ||
225 | if ((rc == 0) && (ret_data_len > 0)) { | |
226 | /* Dump info on first interface */ | |
227 | cifs_dbg(FYI, "Adapter Capability 0x%x\t", | |
228 | le32_to_cpu(out_buf->Capability)); | |
229 | cifs_dbg(FYI, "Link Speed %lld\n", | |
230 | le64_to_cpu(out_buf->LinkSpeed)); | |
231 | } else | |
232 | cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc); | |
233 | ||
234 | return rc; | |
235 | } | |
236 | #endif /* STATS2 */ | |
237 | ||
af6a12ea SF |
238 | static void |
239 | smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
240 | { | |
241 | int rc; | |
242 | __le16 srch_path = 0; /* Null - open root of share */ | |
243 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
244 | struct cifs_open_parms oparms; | |
245 | struct cifs_fid fid; | |
246 | ||
247 | oparms.tcon = tcon; | |
248 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
249 | oparms.disposition = FILE_OPEN; | |
250 | oparms.create_options = 0; | |
251 | oparms.fid = &fid; | |
252 | oparms.reconnect = false; | |
253 | ||
254 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); | |
255 | if (rc) | |
256 | return; | |
257 | ||
c481e9fe SF |
258 | #ifdef CONFIG_CIFS_STATS2 |
259 | SMB3_request_interfaces(xid, tcon); | |
260 | #endif /* STATS2 */ | |
261 | ||
af6a12ea SF |
262 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
263 | FS_ATTRIBUTE_INFORMATION); | |
264 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
265 | FS_DEVICE_INFORMATION); | |
266 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
267 | FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */ | |
268 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
269 | return; | |
270 | } | |
271 | ||
34f62640 SF |
272 | static void |
273 | smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon) | |
274 | { | |
275 | int rc; | |
276 | __le16 srch_path = 0; /* Null - open root of share */ | |
277 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
278 | struct cifs_open_parms oparms; | |
279 | struct cifs_fid fid; | |
280 | ||
281 | oparms.tcon = tcon; | |
282 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
283 | oparms.disposition = FILE_OPEN; | |
284 | oparms.create_options = 0; | |
285 | oparms.fid = &fid; | |
286 | oparms.reconnect = false; | |
287 | ||
288 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); | |
289 | if (rc) | |
290 | return; | |
291 | ||
2167114c SF |
292 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
293 | FS_ATTRIBUTE_INFORMATION); | |
294 | SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid, | |
295 | FS_DEVICE_INFORMATION); | |
34f62640 SF |
296 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
297 | return; | |
298 | } | |
299 | ||
2503a0db PS |
300 | static int |
301 | smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, | |
302 | struct cifs_sb_info *cifs_sb, const char *full_path) | |
303 | { | |
304 | int rc; | |
2503a0db | 305 | __le16 *utf16_path; |
2e44b288 | 306 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 PS |
307 | struct cifs_open_parms oparms; |
308 | struct cifs_fid fid; | |
2503a0db PS |
309 | |
310 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
311 | if (!utf16_path) | |
312 | return -ENOMEM; | |
313 | ||
064f6047 PS |
314 | oparms.tcon = tcon; |
315 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
316 | oparms.disposition = FILE_OPEN; | |
317 | oparms.create_options = 0; | |
318 | oparms.fid = &fid; | |
9cbc0b73 | 319 | oparms.reconnect = false; |
064f6047 | 320 | |
b42bf888 | 321 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); |
2503a0db PS |
322 | if (rc) { |
323 | kfree(utf16_path); | |
324 | return rc; | |
325 | } | |
326 | ||
064f6047 | 327 | rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); |
2503a0db PS |
328 | kfree(utf16_path); |
329 | return rc; | |
330 | } | |
331 | ||
be4cb9e3 PS |
332 | static int |
333 | smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, | |
334 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
335 | u64 *uniqueid, FILE_ALL_INFO *data) | |
336 | { | |
337 | *uniqueid = le64_to_cpu(data->IndexNumber); | |
338 | return 0; | |
339 | } | |
340 | ||
b7546bc5 PS |
341 | static int |
342 | smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon, | |
343 | struct cifs_fid *fid, FILE_ALL_INFO *data) | |
344 | { | |
345 | int rc; | |
346 | struct smb2_file_all_info *smb2_data; | |
347 | ||
348 | smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2, | |
349 | GFP_KERNEL); | |
350 | if (smb2_data == NULL) | |
351 | return -ENOMEM; | |
352 | ||
353 | rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid, | |
354 | smb2_data); | |
355 | if (!rc) | |
356 | move_smb2_info_to_cifs(data, smb2_data); | |
357 | kfree(smb2_data); | |
358 | return rc; | |
359 | } | |
360 | ||
9094fad1 PS |
361 | static bool |
362 | smb2_can_echo(struct TCP_Server_Info *server) | |
363 | { | |
364 | return server->echoes; | |
365 | } | |
366 | ||
d60622eb PS |
367 | static void |
368 | smb2_clear_stats(struct cifs_tcon *tcon) | |
369 | { | |
370 | #ifdef CONFIG_CIFS_STATS | |
371 | int i; | |
372 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { | |
373 | atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0); | |
374 | atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0); | |
375 | } | |
376 | #endif | |
377 | } | |
378 | ||
769ee6a4 SF |
379 | static void |
380 | smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon) | |
381 | { | |
382 | seq_puts(m, "\n\tShare Capabilities:"); | |
383 | if (tcon->capabilities & SMB2_SHARE_CAP_DFS) | |
384 | seq_puts(m, " DFS,"); | |
385 | if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY) | |
386 | seq_puts(m, " CONTINUOUS AVAILABILITY,"); | |
387 | if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT) | |
388 | seq_puts(m, " SCALEOUT,"); | |
389 | if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER) | |
390 | seq_puts(m, " CLUSTER,"); | |
391 | if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC) | |
392 | seq_puts(m, " ASYMMETRIC,"); | |
393 | if (tcon->capabilities == 0) | |
394 | seq_puts(m, " None"); | |
af6a12ea SF |
395 | if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE) |
396 | seq_puts(m, " Aligned,"); | |
397 | if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE) | |
398 | seq_puts(m, " Partition Aligned,"); | |
399 | if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY) | |
400 | seq_puts(m, " SSD,"); | |
401 | if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED) | |
402 | seq_puts(m, " TRIM-support,"); | |
403 | ||
769ee6a4 | 404 | seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags); |
af6a12ea SF |
405 | if (tcon->perf_sector_size) |
406 | seq_printf(m, "\tOptimal sector size: 0x%x", | |
407 | tcon->perf_sector_size); | |
769ee6a4 SF |
408 | } |
409 | ||
d60622eb PS |
410 | static void |
411 | smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon) | |
412 | { | |
413 | #ifdef CONFIG_CIFS_STATS | |
414 | atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent; | |
415 | atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed; | |
416 | seq_printf(m, "\nNegotiates: %d sent %d failed", | |
417 | atomic_read(&sent[SMB2_NEGOTIATE_HE]), | |
418 | atomic_read(&failed[SMB2_NEGOTIATE_HE])); | |
419 | seq_printf(m, "\nSessionSetups: %d sent %d failed", | |
420 | atomic_read(&sent[SMB2_SESSION_SETUP_HE]), | |
421 | atomic_read(&failed[SMB2_SESSION_SETUP_HE])); | |
d60622eb PS |
422 | seq_printf(m, "\nLogoffs: %d sent %d failed", |
423 | atomic_read(&sent[SMB2_LOGOFF_HE]), | |
424 | atomic_read(&failed[SMB2_LOGOFF_HE])); | |
425 | seq_printf(m, "\nTreeConnects: %d sent %d failed", | |
426 | atomic_read(&sent[SMB2_TREE_CONNECT_HE]), | |
427 | atomic_read(&failed[SMB2_TREE_CONNECT_HE])); | |
428 | seq_printf(m, "\nTreeDisconnects: %d sent %d failed", | |
429 | atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]), | |
430 | atomic_read(&failed[SMB2_TREE_DISCONNECT_HE])); | |
431 | seq_printf(m, "\nCreates: %d sent %d failed", | |
432 | atomic_read(&sent[SMB2_CREATE_HE]), | |
433 | atomic_read(&failed[SMB2_CREATE_HE])); | |
434 | seq_printf(m, "\nCloses: %d sent %d failed", | |
435 | atomic_read(&sent[SMB2_CLOSE_HE]), | |
436 | atomic_read(&failed[SMB2_CLOSE_HE])); | |
437 | seq_printf(m, "\nFlushes: %d sent %d failed", | |
438 | atomic_read(&sent[SMB2_FLUSH_HE]), | |
439 | atomic_read(&failed[SMB2_FLUSH_HE])); | |
440 | seq_printf(m, "\nReads: %d sent %d failed", | |
441 | atomic_read(&sent[SMB2_READ_HE]), | |
442 | atomic_read(&failed[SMB2_READ_HE])); | |
443 | seq_printf(m, "\nWrites: %d sent %d failed", | |
444 | atomic_read(&sent[SMB2_WRITE_HE]), | |
445 | atomic_read(&failed[SMB2_WRITE_HE])); | |
446 | seq_printf(m, "\nLocks: %d sent %d failed", | |
447 | atomic_read(&sent[SMB2_LOCK_HE]), | |
448 | atomic_read(&failed[SMB2_LOCK_HE])); | |
449 | seq_printf(m, "\nIOCTLs: %d sent %d failed", | |
450 | atomic_read(&sent[SMB2_IOCTL_HE]), | |
451 | atomic_read(&failed[SMB2_IOCTL_HE])); | |
452 | seq_printf(m, "\nCancels: %d sent %d failed", | |
453 | atomic_read(&sent[SMB2_CANCEL_HE]), | |
454 | atomic_read(&failed[SMB2_CANCEL_HE])); | |
455 | seq_printf(m, "\nEchos: %d sent %d failed", | |
456 | atomic_read(&sent[SMB2_ECHO_HE]), | |
457 | atomic_read(&failed[SMB2_ECHO_HE])); | |
458 | seq_printf(m, "\nQueryDirectories: %d sent %d failed", | |
459 | atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]), | |
460 | atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE])); | |
461 | seq_printf(m, "\nChangeNotifies: %d sent %d failed", | |
462 | atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]), | |
463 | atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE])); | |
464 | seq_printf(m, "\nQueryInfos: %d sent %d failed", | |
465 | atomic_read(&sent[SMB2_QUERY_INFO_HE]), | |
466 | atomic_read(&failed[SMB2_QUERY_INFO_HE])); | |
467 | seq_printf(m, "\nSetInfos: %d sent %d failed", | |
468 | atomic_read(&sent[SMB2_SET_INFO_HE]), | |
469 | atomic_read(&failed[SMB2_SET_INFO_HE])); | |
470 | seq_printf(m, "\nOplockBreaks: %d sent %d failed", | |
471 | atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]), | |
472 | atomic_read(&failed[SMB2_OPLOCK_BREAK_HE])); | |
473 | #endif | |
474 | } | |
475 | ||
f0df737e PS |
476 | static void |
477 | smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock) | |
478 | { | |
2e44b288 | 479 | struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode); |
53ef1016 PS |
480 | struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server; |
481 | ||
f0df737e PS |
482 | cfile->fid.persistent_fid = fid->persistent_fid; |
483 | cfile->fid.volatile_fid = fid->volatile_fid; | |
42873b0a PS |
484 | server->ops->set_oplock_level(cinode, oplock, fid->epoch, |
485 | &fid->purge_cache); | |
18cceb6a | 486 | cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode); |
f0df737e PS |
487 | } |
488 | ||
760ad0ca | 489 | static void |
f0df737e PS |
490 | smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon, |
491 | struct cifs_fid *fid) | |
492 | { | |
760ad0ca | 493 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
f0df737e PS |
494 | } |
495 | ||
41c1358e SF |
496 | static int |
497 | SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon, | |
498 | u64 persistent_fid, u64 volatile_fid, | |
499 | struct copychunk_ioctl *pcchunk) | |
500 | { | |
501 | int rc; | |
502 | unsigned int ret_data_len; | |
503 | struct resume_key_req *res_key; | |
504 | ||
505 | rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid, | |
506 | FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */, | |
507 | NULL, 0 /* no input */, | |
508 | (char **)&res_key, &ret_data_len); | |
509 | ||
510 | if (rc) { | |
511 | cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc); | |
512 | goto req_res_key_exit; | |
513 | } | |
514 | if (ret_data_len < sizeof(struct resume_key_req)) { | |
515 | cifs_dbg(VFS, "Invalid refcopy resume key length\n"); | |
516 | rc = -EINVAL; | |
517 | goto req_res_key_exit; | |
518 | } | |
519 | memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE); | |
520 | ||
521 | req_res_key_exit: | |
522 | kfree(res_key); | |
523 | return rc; | |
524 | } | |
525 | ||
526 | static int | |
527 | smb2_clone_range(const unsigned int xid, | |
528 | struct cifsFileInfo *srcfile, | |
529 | struct cifsFileInfo *trgtfile, u64 src_off, | |
530 | u64 len, u64 dest_off) | |
531 | { | |
532 | int rc; | |
533 | unsigned int ret_data_len; | |
534 | struct copychunk_ioctl *pcchunk; | |
535 | char *retbuf = NULL; | |
536 | ||
537 | pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL); | |
538 | ||
539 | if (pcchunk == NULL) | |
540 | return -ENOMEM; | |
541 | ||
542 | cifs_dbg(FYI, "in smb2_clone_range - about to call request res key\n"); | |
543 | /* Request a key from the server to identify the source of the copy */ | |
544 | rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink), | |
545 | srcfile->fid.persistent_fid, | |
546 | srcfile->fid.volatile_fid, pcchunk); | |
547 | ||
548 | /* Note: request_res_key sets res_key null only if rc !=0 */ | |
549 | if (rc) | |
550 | return rc; | |
551 | ||
552 | /* For now array only one chunk long, will make more flexible later */ | |
553 | pcchunk->ChunkCount = __constant_cpu_to_le32(1); | |
554 | pcchunk->Reserved = 0; | |
555 | pcchunk->SourceOffset = cpu_to_le64(src_off); | |
556 | pcchunk->TargetOffset = cpu_to_le64(dest_off); | |
557 | pcchunk->Length = cpu_to_le32(len); | |
558 | pcchunk->Reserved2 = 0; | |
559 | ||
560 | /* Request that server copy to target from src file identified by key */ | |
561 | rc = SMB2_ioctl(xid, tlink_tcon(trgtfile->tlink), | |
562 | trgtfile->fid.persistent_fid, | |
563 | trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, | |
564 | true /* is_fsctl */, (char *)pcchunk, | |
565 | sizeof(struct copychunk_ioctl), &retbuf, &ret_data_len); | |
566 | ||
567 | /* BB need to special case rc = EINVAL to alter chunk size */ | |
568 | ||
569 | cifs_dbg(FYI, "rc %d data length out %d\n", rc, ret_data_len); | |
570 | ||
571 | kfree(pcchunk); | |
572 | return rc; | |
573 | } | |
574 | ||
7a5cfb19 PS |
575 | static int |
576 | smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon, | |
577 | struct cifs_fid *fid) | |
578 | { | |
579 | return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
580 | } | |
581 | ||
09a4707e PS |
582 | static unsigned int |
583 | smb2_read_data_offset(char *buf) | |
584 | { | |
585 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
586 | return rsp->DataOffset; | |
587 | } | |
588 | ||
589 | static unsigned int | |
590 | smb2_read_data_length(char *buf) | |
591 | { | |
592 | struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf; | |
593 | return le32_to_cpu(rsp->DataLength); | |
594 | } | |
595 | ||
d8e05039 PS |
596 | |
597 | static int | |
598 | smb2_sync_read(const unsigned int xid, struct cifsFileInfo *cfile, | |
599 | struct cifs_io_parms *parms, unsigned int *bytes_read, | |
600 | char **buf, int *buf_type) | |
601 | { | |
602 | parms->persistent_fid = cfile->fid.persistent_fid; | |
603 | parms->volatile_fid = cfile->fid.volatile_fid; | |
604 | return SMB2_read(xid, parms, bytes_read, buf, buf_type); | |
605 | } | |
606 | ||
009d3443 PS |
607 | static int |
608 | smb2_sync_write(const unsigned int xid, struct cifsFileInfo *cfile, | |
609 | struct cifs_io_parms *parms, unsigned int *written, | |
610 | struct kvec *iov, unsigned long nr_segs) | |
611 | { | |
612 | ||
613 | parms->persistent_fid = cfile->fid.persistent_fid; | |
614 | parms->volatile_fid = cfile->fid.volatile_fid; | |
615 | return SMB2_write(xid, parms, written, iov, nr_segs); | |
616 | } | |
617 | ||
c839ff24 PS |
618 | static int |
619 | smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon, | |
620 | struct cifsFileInfo *cfile, __u64 size, bool set_alloc) | |
621 | { | |
622 | __le64 eof = cpu_to_le64(size); | |
623 | return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid, | |
624 | cfile->fid.volatile_fid, cfile->pid, &eof); | |
625 | } | |
626 | ||
64a5cfa6 SF |
627 | static int |
628 | smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, | |
629 | struct cifsFileInfo *cfile) | |
630 | { | |
631 | return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid, | |
632 | cfile->fid.volatile_fid); | |
633 | } | |
634 | ||
d324f08d PS |
635 | static int |
636 | smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, | |
637 | const char *path, struct cifs_sb_info *cifs_sb, | |
638 | struct cifs_fid *fid, __u16 search_flags, | |
639 | struct cifs_search_info *srch_inf) | |
640 | { | |
641 | __le16 *utf16_path; | |
642 | int rc; | |
2e44b288 | 643 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; |
064f6047 | 644 | struct cifs_open_parms oparms; |
d324f08d PS |
645 | |
646 | utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); | |
647 | if (!utf16_path) | |
648 | return -ENOMEM; | |
649 | ||
064f6047 PS |
650 | oparms.tcon = tcon; |
651 | oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA; | |
652 | oparms.disposition = FILE_OPEN; | |
653 | oparms.create_options = 0; | |
654 | oparms.fid = fid; | |
9cbc0b73 | 655 | oparms.reconnect = false; |
064f6047 | 656 | |
b42bf888 | 657 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); |
d324f08d PS |
658 | kfree(utf16_path); |
659 | if (rc) { | |
f96637be | 660 | cifs_dbg(VFS, "open dir failed\n"); |
d324f08d PS |
661 | return rc; |
662 | } | |
663 | ||
664 | srch_inf->entries_in_buffer = 0; | |
665 | srch_inf->index_of_last_entry = 0; | |
d324f08d | 666 | |
064f6047 PS |
667 | rc = SMB2_query_directory(xid, tcon, fid->persistent_fid, |
668 | fid->volatile_fid, 0, srch_inf); | |
d324f08d | 669 | if (rc) { |
f96637be | 670 | cifs_dbg(VFS, "query directory failed\n"); |
064f6047 | 671 | SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); |
d324f08d PS |
672 | } |
673 | return rc; | |
674 | } | |
675 | ||
676 | static int | |
677 | smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon, | |
678 | struct cifs_fid *fid, __u16 search_flags, | |
679 | struct cifs_search_info *srch_inf) | |
680 | { | |
681 | return SMB2_query_directory(xid, tcon, fid->persistent_fid, | |
682 | fid->volatile_fid, 0, srch_inf); | |
683 | } | |
684 | ||
685 | static int | |
686 | smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon, | |
687 | struct cifs_fid *fid) | |
688 | { | |
689 | return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid); | |
690 | } | |
691 | ||
2e44b288 PS |
692 | /* |
693 | * If we negotiate SMB2 protocol and get STATUS_PENDING - update | |
694 | * the number of credits and return true. Otherwise - return false. | |
695 | */ | |
696 | static bool | |
697 | smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length) | |
698 | { | |
699 | struct smb2_hdr *hdr = (struct smb2_hdr *)buf; | |
700 | ||
12e8a208 | 701 | if (hdr->Status != STATUS_PENDING) |
2e44b288 PS |
702 | return false; |
703 | ||
704 | if (!length) { | |
705 | spin_lock(&server->req_lock); | |
706 | server->credits += le16_to_cpu(hdr->CreditRequest); | |
707 | spin_unlock(&server->req_lock); | |
708 | wake_up(&server->request_q); | |
709 | } | |
710 | ||
711 | return true; | |
712 | } | |
713 | ||
983c88a4 PS |
714 | static int |
715 | smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid, | |
716 | struct cifsInodeInfo *cinode) | |
717 | { | |
0822f514 PS |
718 | if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING) |
719 | return SMB2_lease_break(0, tcon, cinode->lease_key, | |
720 | smb2_get_lease_state(cinode)); | |
721 | ||
983c88a4 PS |
722 | return SMB2_oplock_break(0, tcon, fid->persistent_fid, |
723 | fid->volatile_fid, | |
18cceb6a | 724 | CIFS_CACHE_READ(cinode) ? 1 : 0); |
983c88a4 PS |
725 | } |
726 | ||
6fc05c25 PS |
727 | static int |
728 | smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon, | |
729 | struct kstatfs *buf) | |
730 | { | |
731 | int rc; | |
6fc05c25 PS |
732 | __le16 srch_path = 0; /* Null - open root of share */ |
733 | u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
064f6047 PS |
734 | struct cifs_open_parms oparms; |
735 | struct cifs_fid fid; | |
736 | ||
737 | oparms.tcon = tcon; | |
738 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
739 | oparms.disposition = FILE_OPEN; | |
740 | oparms.create_options = 0; | |
741 | oparms.fid = &fid; | |
9cbc0b73 | 742 | oparms.reconnect = false; |
6fc05c25 | 743 | |
b42bf888 | 744 | rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL); |
6fc05c25 PS |
745 | if (rc) |
746 | return rc; | |
747 | buf->f_type = SMB2_MAGIC_NUMBER; | |
064f6047 PS |
748 | rc = SMB2_QFS_info(xid, tcon, fid.persistent_fid, fid.volatile_fid, |
749 | buf); | |
750 | SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); | |
6fc05c25 PS |
751 | return rc; |
752 | } | |
753 | ||
027e8eec PS |
754 | static bool |
755 | smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2) | |
756 | { | |
757 | return ob1->fid.persistent_fid == ob2->fid.persistent_fid && | |
758 | ob1->fid.volatile_fid == ob2->fid.volatile_fid; | |
759 | } | |
760 | ||
f7ba7fe6 PS |
761 | static int |
762 | smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, | |
763 | __u64 length, __u32 type, int lock, int unlock, bool wait) | |
764 | { | |
765 | if (unlock && !lock) | |
766 | type = SMB2_LOCKFLAG_UNLOCK; | |
767 | return SMB2_lock(xid, tlink_tcon(cfile->tlink), | |
768 | cfile->fid.persistent_fid, cfile->fid.volatile_fid, | |
769 | current->tgid, length, offset, type, wait); | |
770 | } | |
771 | ||
b8c32dbb PS |
772 | static void |
773 | smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid) | |
774 | { | |
775 | memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE); | |
776 | } | |
777 | ||
778 | static void | |
779 | smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid) | |
780 | { | |
781 | memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE); | |
782 | } | |
783 | ||
784 | static void | |
785 | smb2_new_lease_key(struct cifs_fid *fid) | |
786 | { | |
787 | get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE); | |
788 | } | |
789 | ||
b42bf888 PS |
790 | static int |
791 | smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon, | |
792 | const char *full_path, char **target_path, | |
793 | struct cifs_sb_info *cifs_sb) | |
794 | { | |
795 | int rc; | |
796 | __le16 *utf16_path; | |
797 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
798 | struct cifs_open_parms oparms; | |
799 | struct cifs_fid fid; | |
800 | struct smb2_err_rsp *err_buf = NULL; | |
801 | struct smb2_symlink_err_rsp *symlink; | |
802 | unsigned int sub_len, sub_offset; | |
803 | ||
804 | cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path); | |
805 | ||
806 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
807 | if (!utf16_path) | |
808 | return -ENOMEM; | |
809 | ||
810 | oparms.tcon = tcon; | |
811 | oparms.desired_access = FILE_READ_ATTRIBUTES; | |
812 | oparms.disposition = FILE_OPEN; | |
813 | oparms.create_options = 0; | |
814 | oparms.fid = &fid; | |
815 | oparms.reconnect = false; | |
816 | ||
817 | rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_buf); | |
818 | ||
819 | if (!rc || !err_buf) { | |
820 | kfree(utf16_path); | |
821 | return -ENOENT; | |
822 | } | |
823 | /* open must fail on symlink - reset rc */ | |
824 | rc = 0; | |
825 | symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData; | |
826 | sub_len = le16_to_cpu(symlink->SubstituteNameLength); | |
827 | sub_offset = le16_to_cpu(symlink->SubstituteNameOffset); | |
828 | *target_path = cifs_strndup_from_utf16( | |
829 | (char *)symlink->PathBuffer + sub_offset, | |
830 | sub_len, true, cifs_sb->local_nls); | |
831 | if (!(*target_path)) { | |
832 | kfree(utf16_path); | |
833 | return -ENOMEM; | |
834 | } | |
835 | convert_delimiter(*target_path, '/'); | |
836 | cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path); | |
837 | kfree(utf16_path); | |
838 | return rc; | |
839 | } | |
840 | ||
53ef1016 | 841 | static void |
42873b0a PS |
842 | smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
843 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
844 | { |
845 | oplock &= 0xFF; | |
846 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
847 | return; | |
848 | if (oplock == SMB2_OPLOCK_LEVEL_BATCH) { | |
42873b0a | 849 | cinode->oplock = CIFS_CACHE_RHW_FLG; |
53ef1016 PS |
850 | cifs_dbg(FYI, "Batch Oplock granted on inode %p\n", |
851 | &cinode->vfs_inode); | |
852 | } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) { | |
42873b0a | 853 | cinode->oplock = CIFS_CACHE_RW_FLG; |
53ef1016 PS |
854 | cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n", |
855 | &cinode->vfs_inode); | |
856 | } else if (oplock == SMB2_OPLOCK_LEVEL_II) { | |
857 | cinode->oplock = CIFS_CACHE_READ_FLG; | |
858 | cifs_dbg(FYI, "Level II Oplock granted on inode %p\n", | |
859 | &cinode->vfs_inode); | |
860 | } else | |
861 | cinode->oplock = 0; | |
862 | } | |
863 | ||
864 | static void | |
42873b0a PS |
865 | smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, |
866 | unsigned int epoch, bool *purge_cache) | |
53ef1016 PS |
867 | { |
868 | char message[5] = {0}; | |
869 | ||
870 | oplock &= 0xFF; | |
871 | if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) | |
872 | return; | |
873 | ||
874 | cinode->oplock = 0; | |
875 | if (oplock & SMB2_LEASE_READ_CACHING_HE) { | |
876 | cinode->oplock |= CIFS_CACHE_READ_FLG; | |
877 | strcat(message, "R"); | |
878 | } | |
879 | if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) { | |
880 | cinode->oplock |= CIFS_CACHE_HANDLE_FLG; | |
881 | strcat(message, "H"); | |
882 | } | |
883 | if (oplock & SMB2_LEASE_WRITE_CACHING_HE) { | |
884 | cinode->oplock |= CIFS_CACHE_WRITE_FLG; | |
885 | strcat(message, "W"); | |
886 | } | |
887 | if (!cinode->oplock) | |
888 | strcat(message, "None"); | |
889 | cifs_dbg(FYI, "%s Lease granted on inode %p\n", message, | |
890 | &cinode->vfs_inode); | |
891 | } | |
892 | ||
42873b0a PS |
893 | static void |
894 | smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, | |
895 | unsigned int epoch, bool *purge_cache) | |
896 | { | |
897 | unsigned int old_oplock = cinode->oplock; | |
898 | ||
899 | smb21_set_oplock_level(cinode, oplock, epoch, purge_cache); | |
900 | ||
901 | if (purge_cache) { | |
902 | *purge_cache = false; | |
903 | if (old_oplock == CIFS_CACHE_READ_FLG) { | |
904 | if (cinode->oplock == CIFS_CACHE_READ_FLG && | |
905 | (epoch - cinode->epoch > 0)) | |
906 | *purge_cache = true; | |
907 | else if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
908 | (epoch - cinode->epoch > 1)) | |
909 | *purge_cache = true; | |
910 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
911 | (epoch - cinode->epoch > 1)) | |
912 | *purge_cache = true; | |
913 | else if (cinode->oplock == 0 && | |
914 | (epoch - cinode->epoch > 0)) | |
915 | *purge_cache = true; | |
916 | } else if (old_oplock == CIFS_CACHE_RH_FLG) { | |
917 | if (cinode->oplock == CIFS_CACHE_RH_FLG && | |
918 | (epoch - cinode->epoch > 0)) | |
919 | *purge_cache = true; | |
920 | else if (cinode->oplock == CIFS_CACHE_RHW_FLG && | |
921 | (epoch - cinode->epoch > 1)) | |
922 | *purge_cache = true; | |
923 | } | |
924 | cinode->epoch = epoch; | |
925 | } | |
926 | } | |
927 | ||
53ef1016 PS |
928 | static bool |
929 | smb2_is_read_op(__u32 oplock) | |
930 | { | |
931 | return oplock == SMB2_OPLOCK_LEVEL_II; | |
932 | } | |
933 | ||
934 | static bool | |
935 | smb21_is_read_op(__u32 oplock) | |
936 | { | |
937 | return (oplock & SMB2_LEASE_READ_CACHING_HE) && | |
938 | !(oplock & SMB2_LEASE_WRITE_CACHING_HE); | |
939 | } | |
940 | ||
f047390a PS |
941 | static __le32 |
942 | map_oplock_to_lease(u8 oplock) | |
943 | { | |
944 | if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) | |
945 | return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING; | |
946 | else if (oplock == SMB2_OPLOCK_LEVEL_II) | |
947 | return SMB2_LEASE_READ_CACHING; | |
948 | else if (oplock == SMB2_OPLOCK_LEVEL_BATCH) | |
949 | return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING | | |
950 | SMB2_LEASE_WRITE_CACHING; | |
951 | return 0; | |
952 | } | |
953 | ||
a41a28bd PS |
954 | static char * |
955 | smb2_create_lease_buf(u8 *lease_key, u8 oplock) | |
956 | { | |
957 | struct create_lease *buf; | |
958 | ||
959 | buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL); | |
960 | if (!buf) | |
961 | return NULL; | |
962 | ||
963 | buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key)); | |
964 | buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8))); | |
f047390a | 965 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); |
a41a28bd PS |
966 | |
967 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
968 | (struct create_lease, lcontext)); | |
969 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context)); | |
970 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
971 | (struct create_lease, Name)); | |
972 | buf->ccontext.NameLength = cpu_to_le16(4); | |
973 | buf->Name[0] = 'R'; | |
974 | buf->Name[1] = 'q'; | |
975 | buf->Name[2] = 'L'; | |
976 | buf->Name[3] = 's'; | |
977 | return (char *)buf; | |
978 | } | |
979 | ||
f047390a PS |
980 | static char * |
981 | smb3_create_lease_buf(u8 *lease_key, u8 oplock) | |
982 | { | |
983 | struct create_lease_v2 *buf; | |
984 | ||
985 | buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL); | |
986 | if (!buf) | |
987 | return NULL; | |
988 | ||
989 | buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key)); | |
990 | buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8))); | |
991 | buf->lcontext.LeaseState = map_oplock_to_lease(oplock); | |
992 | ||
993 | buf->ccontext.DataOffset = cpu_to_le16(offsetof | |
994 | (struct create_lease_v2, lcontext)); | |
995 | buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2)); | |
996 | buf->ccontext.NameOffset = cpu_to_le16(offsetof | |
997 | (struct create_lease_v2, Name)); | |
998 | buf->ccontext.NameLength = cpu_to_le16(4); | |
999 | buf->Name[0] = 'R'; | |
1000 | buf->Name[1] = 'q'; | |
1001 | buf->Name[2] = 'L'; | |
1002 | buf->Name[3] = 's'; | |
1003 | return (char *)buf; | |
1004 | } | |
1005 | ||
b5c7cde3 | 1006 | static __u8 |
42873b0a | 1007 | smb2_parse_lease_buf(void *buf, unsigned int *epoch) |
b5c7cde3 PS |
1008 | { |
1009 | struct create_lease *lc = (struct create_lease *)buf; | |
1010 | ||
42873b0a | 1011 | *epoch = 0; /* not used */ |
b5c7cde3 PS |
1012 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
1013 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
1014 | return le32_to_cpu(lc->lcontext.LeaseState); | |
1015 | } | |
1016 | ||
f047390a | 1017 | static __u8 |
42873b0a | 1018 | smb3_parse_lease_buf(void *buf, unsigned int *epoch) |
f047390a PS |
1019 | { |
1020 | struct create_lease_v2 *lc = (struct create_lease_v2 *)buf; | |
1021 | ||
42873b0a | 1022 | *epoch = le16_to_cpu(lc->lcontext.Epoch); |
f047390a PS |
1023 | if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS) |
1024 | return SMB2_OPLOCK_LEVEL_NOCHANGE; | |
1025 | return le32_to_cpu(lc->lcontext.LeaseState); | |
1026 | } | |
1027 | ||
53ef1016 | 1028 | struct smb_version_operations smb20_operations = { |
027e8eec | 1029 | .compare_fids = smb2_compare_fids, |
2dc7e1c0 | 1030 | .setup_request = smb2_setup_request, |
c95b8eed | 1031 | .setup_async_request = smb2_setup_async_request, |
2dc7e1c0 | 1032 | .check_receive = smb2_check_receive, |
28ea5290 PS |
1033 | .add_credits = smb2_add_credits, |
1034 | .set_credits = smb2_set_credits, | |
1035 | .get_credits_field = smb2_get_credits_field, | |
1036 | .get_credits = smb2_get_credits, | |
2dc7e1c0 | 1037 | .get_next_mid = smb2_get_next_mid, |
09a4707e PS |
1038 | .read_data_offset = smb2_read_data_offset, |
1039 | .read_data_length = smb2_read_data_length, | |
1040 | .map_error = map_smb2_to_linux_error, | |
093b2bda PS |
1041 | .find_mid = smb2_find_mid, |
1042 | .check_message = smb2_check_message, | |
1043 | .dump_detail = smb2_dump_detail, | |
d60622eb PS |
1044 | .clear_stats = smb2_clear_stats, |
1045 | .print_stats = smb2_print_stats, | |
983c88a4 | 1046 | .is_oplock_break = smb2_is_valid_oplock_break, |
ec2e4523 PS |
1047 | .need_neg = smb2_need_neg, |
1048 | .negotiate = smb2_negotiate, | |
3a3bab50 PS |
1049 | .negotiate_wsize = smb2_negotiate_wsize, |
1050 | .negotiate_rsize = smb2_negotiate_rsize, | |
5478f9ba PS |
1051 | .sess_setup = SMB2_sess_setup, |
1052 | .logoff = SMB2_logoff, | |
faaf946a PS |
1053 | .tree_connect = SMB2_tcon, |
1054 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 1055 | .qfs_tcon = smb2_qfs_tcon, |
2503a0db | 1056 | .is_path_accessible = smb2_is_path_accessible, |
9094fad1 PS |
1057 | .can_echo = smb2_can_echo, |
1058 | .echo = SMB2_echo, | |
be4cb9e3 PS |
1059 | .query_path_info = smb2_query_path_info, |
1060 | .get_srv_inum = smb2_get_srv_inum, | |
b7546bc5 | 1061 | .query_file_info = smb2_query_file_info, |
c839ff24 PS |
1062 | .set_path_size = smb2_set_path_size, |
1063 | .set_file_size = smb2_set_file_size, | |
1feeaac7 | 1064 | .set_file_info = smb2_set_file_info, |
64a5cfa6 | 1065 | .set_compression = smb2_set_compression, |
a0e73183 PS |
1066 | .mkdir = smb2_mkdir, |
1067 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1a500f01 | 1068 | .rmdir = smb2_rmdir, |
cbe6f439 | 1069 | .unlink = smb2_unlink, |
35143eb5 | 1070 | .rename = smb2_rename_path, |
568798cc | 1071 | .create_hardlink = smb2_create_hardlink, |
b42bf888 | 1072 | .query_symlink = smb2_query_symlink, |
f0df737e PS |
1073 | .open = smb2_open_file, |
1074 | .set_fid = smb2_set_fid, | |
1075 | .close = smb2_close_file, | |
7a5cfb19 | 1076 | .flush = smb2_flush_file, |
09a4707e | 1077 | .async_readv = smb2_async_readv, |
33319141 | 1078 | .async_writev = smb2_async_writev, |
d8e05039 | 1079 | .sync_read = smb2_sync_read, |
009d3443 | 1080 | .sync_write = smb2_sync_write, |
d324f08d PS |
1081 | .query_dir_first = smb2_query_dir_first, |
1082 | .query_dir_next = smb2_query_dir_next, | |
1083 | .close_dir = smb2_close_dir, | |
1084 | .calc_smb_size = smb2_calc_size, | |
2e44b288 | 1085 | .is_status_pending = smb2_is_status_pending, |
983c88a4 | 1086 | .oplock_response = smb2_oplock_response, |
6fc05c25 | 1087 | .queryfs = smb2_queryfs, |
f7ba7fe6 PS |
1088 | .mand_lock = smb2_mand_lock, |
1089 | .mand_unlock_range = smb2_unlock_range, | |
b140799a | 1090 | .push_mand_locks = smb2_push_mandatory_locks, |
b8c32dbb PS |
1091 | .get_lease_key = smb2_get_lease_key, |
1092 | .set_lease_key = smb2_set_lease_key, | |
1093 | .new_lease_key = smb2_new_lease_key, | |
38107d45 | 1094 | .calc_signature = smb2_calc_signature, |
53ef1016 PS |
1095 | .is_read_op = smb2_is_read_op, |
1096 | .set_oplock_level = smb2_set_oplock_level, | |
a41a28bd | 1097 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 1098 | .parse_lease_buf = smb2_parse_lease_buf, |
41c1358e | 1099 | .clone_range = smb2_clone_range, |
38107d45 SF |
1100 | }; |
1101 | ||
53ef1016 PS |
1102 | struct smb_version_operations smb21_operations = { |
1103 | .compare_fids = smb2_compare_fids, | |
1104 | .setup_request = smb2_setup_request, | |
1105 | .setup_async_request = smb2_setup_async_request, | |
1106 | .check_receive = smb2_check_receive, | |
1107 | .add_credits = smb2_add_credits, | |
1108 | .set_credits = smb2_set_credits, | |
1109 | .get_credits_field = smb2_get_credits_field, | |
1110 | .get_credits = smb2_get_credits, | |
1111 | .get_next_mid = smb2_get_next_mid, | |
1112 | .read_data_offset = smb2_read_data_offset, | |
1113 | .read_data_length = smb2_read_data_length, | |
1114 | .map_error = map_smb2_to_linux_error, | |
1115 | .find_mid = smb2_find_mid, | |
1116 | .check_message = smb2_check_message, | |
1117 | .dump_detail = smb2_dump_detail, | |
1118 | .clear_stats = smb2_clear_stats, | |
1119 | .print_stats = smb2_print_stats, | |
1120 | .is_oplock_break = smb2_is_valid_oplock_break, | |
1121 | .need_neg = smb2_need_neg, | |
1122 | .negotiate = smb2_negotiate, | |
1123 | .negotiate_wsize = smb2_negotiate_wsize, | |
1124 | .negotiate_rsize = smb2_negotiate_rsize, | |
1125 | .sess_setup = SMB2_sess_setup, | |
1126 | .logoff = SMB2_logoff, | |
1127 | .tree_connect = SMB2_tcon, | |
1128 | .tree_disconnect = SMB2_tdis, | |
34f62640 | 1129 | .qfs_tcon = smb2_qfs_tcon, |
53ef1016 PS |
1130 | .is_path_accessible = smb2_is_path_accessible, |
1131 | .can_echo = smb2_can_echo, | |
1132 | .echo = SMB2_echo, | |
1133 | .query_path_info = smb2_query_path_info, | |
1134 | .get_srv_inum = smb2_get_srv_inum, | |
1135 | .query_file_info = smb2_query_file_info, | |
1136 | .set_path_size = smb2_set_path_size, | |
1137 | .set_file_size = smb2_set_file_size, | |
1138 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 1139 | .set_compression = smb2_set_compression, |
53ef1016 PS |
1140 | .mkdir = smb2_mkdir, |
1141 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1142 | .rmdir = smb2_rmdir, | |
1143 | .unlink = smb2_unlink, | |
1144 | .rename = smb2_rename_path, | |
1145 | .create_hardlink = smb2_create_hardlink, | |
1146 | .query_symlink = smb2_query_symlink, | |
1147 | .open = smb2_open_file, | |
1148 | .set_fid = smb2_set_fid, | |
1149 | .close = smb2_close_file, | |
1150 | .flush = smb2_flush_file, | |
1151 | .async_readv = smb2_async_readv, | |
1152 | .async_writev = smb2_async_writev, | |
1153 | .sync_read = smb2_sync_read, | |
1154 | .sync_write = smb2_sync_write, | |
1155 | .query_dir_first = smb2_query_dir_first, | |
1156 | .query_dir_next = smb2_query_dir_next, | |
1157 | .close_dir = smb2_close_dir, | |
1158 | .calc_smb_size = smb2_calc_size, | |
1159 | .is_status_pending = smb2_is_status_pending, | |
1160 | .oplock_response = smb2_oplock_response, | |
1161 | .queryfs = smb2_queryfs, | |
1162 | .mand_lock = smb2_mand_lock, | |
1163 | .mand_unlock_range = smb2_unlock_range, | |
1164 | .push_mand_locks = smb2_push_mandatory_locks, | |
1165 | .get_lease_key = smb2_get_lease_key, | |
1166 | .set_lease_key = smb2_set_lease_key, | |
1167 | .new_lease_key = smb2_new_lease_key, | |
1168 | .calc_signature = smb2_calc_signature, | |
1169 | .is_read_op = smb21_is_read_op, | |
1170 | .set_oplock_level = smb21_set_oplock_level, | |
a41a28bd | 1171 | .create_lease_buf = smb2_create_lease_buf, |
b5c7cde3 | 1172 | .parse_lease_buf = smb2_parse_lease_buf, |
41c1358e | 1173 | .clone_range = smb2_clone_range, |
53ef1016 | 1174 | }; |
38107d45 SF |
1175 | |
1176 | struct smb_version_operations smb30_operations = { | |
1177 | .compare_fids = smb2_compare_fids, | |
1178 | .setup_request = smb2_setup_request, | |
1179 | .setup_async_request = smb2_setup_async_request, | |
1180 | .check_receive = smb2_check_receive, | |
1181 | .add_credits = smb2_add_credits, | |
1182 | .set_credits = smb2_set_credits, | |
1183 | .get_credits_field = smb2_get_credits_field, | |
1184 | .get_credits = smb2_get_credits, | |
1185 | .get_next_mid = smb2_get_next_mid, | |
1186 | .read_data_offset = smb2_read_data_offset, | |
1187 | .read_data_length = smb2_read_data_length, | |
1188 | .map_error = map_smb2_to_linux_error, | |
1189 | .find_mid = smb2_find_mid, | |
1190 | .check_message = smb2_check_message, | |
1191 | .dump_detail = smb2_dump_detail, | |
1192 | .clear_stats = smb2_clear_stats, | |
1193 | .print_stats = smb2_print_stats, | |
769ee6a4 | 1194 | .dump_share_caps = smb2_dump_share_caps, |
38107d45 SF |
1195 | .is_oplock_break = smb2_is_valid_oplock_break, |
1196 | .need_neg = smb2_need_neg, | |
1197 | .negotiate = smb2_negotiate, | |
1198 | .negotiate_wsize = smb2_negotiate_wsize, | |
1199 | .negotiate_rsize = smb2_negotiate_rsize, | |
1200 | .sess_setup = SMB2_sess_setup, | |
1201 | .logoff = SMB2_logoff, | |
1202 | .tree_connect = SMB2_tcon, | |
1203 | .tree_disconnect = SMB2_tdis, | |
af6a12ea | 1204 | .qfs_tcon = smb3_qfs_tcon, |
38107d45 SF |
1205 | .is_path_accessible = smb2_is_path_accessible, |
1206 | .can_echo = smb2_can_echo, | |
1207 | .echo = SMB2_echo, | |
1208 | .query_path_info = smb2_query_path_info, | |
1209 | .get_srv_inum = smb2_get_srv_inum, | |
1210 | .query_file_info = smb2_query_file_info, | |
1211 | .set_path_size = smb2_set_path_size, | |
1212 | .set_file_size = smb2_set_file_size, | |
1213 | .set_file_info = smb2_set_file_info, | |
64a5cfa6 | 1214 | .set_compression = smb2_set_compression, |
38107d45 SF |
1215 | .mkdir = smb2_mkdir, |
1216 | .mkdir_setinfo = smb2_mkdir_setinfo, | |
1217 | .rmdir = smb2_rmdir, | |
1218 | .unlink = smb2_unlink, | |
1219 | .rename = smb2_rename_path, | |
1220 | .create_hardlink = smb2_create_hardlink, | |
b42bf888 | 1221 | .query_symlink = smb2_query_symlink, |
38107d45 SF |
1222 | .open = smb2_open_file, |
1223 | .set_fid = smb2_set_fid, | |
1224 | .close = smb2_close_file, | |
1225 | .flush = smb2_flush_file, | |
1226 | .async_readv = smb2_async_readv, | |
1227 | .async_writev = smb2_async_writev, | |
1228 | .sync_read = smb2_sync_read, | |
1229 | .sync_write = smb2_sync_write, | |
1230 | .query_dir_first = smb2_query_dir_first, | |
1231 | .query_dir_next = smb2_query_dir_next, | |
1232 | .close_dir = smb2_close_dir, | |
1233 | .calc_smb_size = smb2_calc_size, | |
1234 | .is_status_pending = smb2_is_status_pending, | |
1235 | .oplock_response = smb2_oplock_response, | |
1236 | .queryfs = smb2_queryfs, | |
1237 | .mand_lock = smb2_mand_lock, | |
1238 | .mand_unlock_range = smb2_unlock_range, | |
1239 | .push_mand_locks = smb2_push_mandatory_locks, | |
1240 | .get_lease_key = smb2_get_lease_key, | |
1241 | .set_lease_key = smb2_set_lease_key, | |
1242 | .new_lease_key = smb2_new_lease_key, | |
e65a5cb4 | 1243 | .generate_signingkey = generate_smb3signingkey, |
38107d45 | 1244 | .calc_signature = smb3_calc_signature, |
53ef1016 | 1245 | .is_read_op = smb21_is_read_op, |
42873b0a | 1246 | .set_oplock_level = smb3_set_oplock_level, |
f047390a PS |
1247 | .create_lease_buf = smb3_create_lease_buf, |
1248 | .parse_lease_buf = smb3_parse_lease_buf, | |
41c1358e | 1249 | .clone_range = smb2_clone_range, |
1080ef75 SF |
1250 | }; |
1251 | ||
dd446b16 SF |
1252 | struct smb_version_values smb20_values = { |
1253 | .version_string = SMB20_VERSION_STRING, | |
1254 | .protocol_id = SMB20_PROT_ID, | |
1255 | .req_capabilities = 0, /* MBZ */ | |
1256 | .large_lock_type = 0, | |
1257 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
1258 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
1259 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
1260 | .header_size = sizeof(struct smb2_hdr), | |
1261 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
1262 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
1263 | .lock_cmd = SMB2_LOCK, | |
1264 | .cap_unix = 0, | |
1265 | .cap_nt_find = SMB2_NT_FIND, | |
1266 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
1267 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
1268 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 1269 | .create_lease_size = sizeof(struct create_lease), |
dd446b16 SF |
1270 | }; |
1271 | ||
1080ef75 SF |
1272 | struct smb_version_values smb21_values = { |
1273 | .version_string = SMB21_VERSION_STRING, | |
e4aa25e7 SF |
1274 | .protocol_id = SMB21_PROT_ID, |
1275 | .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */ | |
1276 | .large_lock_type = 0, | |
1277 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
1278 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
1279 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
1280 | .header_size = sizeof(struct smb2_hdr), | |
1281 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
1282 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
1283 | .lock_cmd = SMB2_LOCK, | |
1284 | .cap_unix = 0, | |
1285 | .cap_nt_find = SMB2_NT_FIND, | |
1286 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
1287 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
1288 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
a41a28bd | 1289 | .create_lease_size = sizeof(struct create_lease), |
e4aa25e7 SF |
1290 | }; |
1291 | ||
1292 | struct smb_version_values smb30_values = { | |
1293 | .version_string = SMB30_VERSION_STRING, | |
1294 | .protocol_id = SMB30_PROT_ID, | |
1295 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU, | |
027e8eec PS |
1296 | .large_lock_type = 0, |
1297 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
1298 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
1299 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
093b2bda PS |
1300 | .header_size = sizeof(struct smb2_hdr), |
1301 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
09a4707e | 1302 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, |
2dc7e1c0 | 1303 | .lock_cmd = SMB2_LOCK, |
29e20f9c PS |
1304 | .cap_unix = 0, |
1305 | .cap_nt_find = SMB2_NT_FIND, | |
1306 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
1307 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
1308 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 1309 | .create_lease_size = sizeof(struct create_lease_v2), |
1080ef75 | 1310 | }; |
20b6d8b4 SF |
1311 | |
1312 | struct smb_version_values smb302_values = { | |
1313 | .version_string = SMB302_VERSION_STRING, | |
1314 | .protocol_id = SMB302_PROT_ID, | |
1315 | .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU, | |
1316 | .large_lock_type = 0, | |
1317 | .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK, | |
1318 | .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK, | |
1319 | .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK, | |
1320 | .header_size = sizeof(struct smb2_hdr), | |
1321 | .max_header_size = MAX_SMB2_HDR_SIZE, | |
1322 | .read_rsp_size = sizeof(struct smb2_read_rsp) - 1, | |
1323 | .lock_cmd = SMB2_LOCK, | |
1324 | .cap_unix = 0, | |
1325 | .cap_nt_find = SMB2_NT_FIND, | |
1326 | .cap_large_files = SMB2_LARGE_FILES, | |
50285882 JL |
1327 | .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED, |
1328 | .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED, | |
f047390a | 1329 | .create_lease_size = sizeof(struct create_lease_v2), |
20b6d8b4 | 1330 | }; |