This source file includes following definitions.
- cifs_dump_mem
- cifs_dump_detail
- cifs_dump_mids
- cifs_debug_tcon
- cifs_dump_iface
- cifs_debug_files_proc_show
- cifs_debug_data_proc_show
- cifs_stats_proc_write
- cifs_stats_proc_show
- cifs_stats_proc_open
- cifs_proc_init
- cifs_proc_clean
- cifsFYI_proc_show
- cifsFYI_proc_open
- cifsFYI_proc_write
- cifs_linux_ext_proc_show
- cifs_linux_ext_proc_open
- cifs_linux_ext_proc_write
- cifs_lookup_cache_proc_show
- cifs_lookup_cache_proc_open
- cifs_lookup_cache_proc_write
- traceSMB_proc_show
- traceSMB_proc_open
- traceSMB_proc_write
- cifs_security_flags_proc_show
- cifs_security_flags_proc_open
- cifs_security_flags_handle_must_flags
- cifs_security_flags_proc_write
- cifs_proc_init
- cifs_proc_clean
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8
9 #include <linux/fs.h>
10 #include <linux/string.h>
11 #include <linux/ctype.h>
12 #include <linux/module.h>
13 #include <linux/proc_fs.h>
14 #include <linux/uaccess.h>
15 #include "cifspdu.h"
16 #include "cifsglob.h"
17 #include "cifsproto.h"
18 #include "cifs_debug.h"
19 #include "cifsfs.h"
20 #ifdef CONFIG_CIFS_DFS_UPCALL
21 #include "dfs_cache.h"
22 #endif
23 #ifdef CONFIG_CIFS_SMB_DIRECT
24 #include "smbdirect.h"
25 #endif
26
27 void
28 cifs_dump_mem(char *label, void *data, int length)
29 {
30 pr_debug("%s: dump of %d bytes of data at 0x%p\n", label, length, data);
31 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 4,
32 data, length, true);
33 }
34
35 void cifs_dump_detail(void *buf, struct TCP_Server_Info *server)
36 {
37 #ifdef CONFIG_CIFS_DEBUG2
38 struct smb_hdr *smb = (struct smb_hdr *)buf;
39
40 cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d\n",
41 smb->Command, smb->Status.CifsError,
42 smb->Flags, smb->Flags2, smb->Mid, smb->Pid);
43 cifs_dbg(VFS, "smb buf %p len %u\n", smb,
44 server->ops->calc_smb_size(smb, server));
45 #endif
46 }
47
48 void cifs_dump_mids(struct TCP_Server_Info *server)
49 {
50 #ifdef CONFIG_CIFS_DEBUG2
51 struct list_head *tmp;
52 struct mid_q_entry *mid_entry;
53
54 if (server == NULL)
55 return;
56
57 cifs_dbg(VFS, "Dump pending requests:\n");
58 spin_lock(&GlobalMid_Lock);
59 list_for_each(tmp, &server->pending_mid_q) {
60 mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
61 cifs_dbg(VFS, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu\n",
62 mid_entry->mid_state,
63 le16_to_cpu(mid_entry->command),
64 mid_entry->pid,
65 mid_entry->callback_data,
66 mid_entry->mid);
67 #ifdef CONFIG_CIFS_STATS2
68 cifs_dbg(VFS, "IsLarge: %d buf: %p time rcv: %ld now: %ld\n",
69 mid_entry->large_buf,
70 mid_entry->resp_buf,
71 mid_entry->when_received,
72 jiffies);
73 #endif
74 cifs_dbg(VFS, "IsMult: %d IsEnd: %d\n",
75 mid_entry->multiRsp, mid_entry->multiEnd);
76 if (mid_entry->resp_buf) {
77 cifs_dump_detail(mid_entry->resp_buf, server);
78 cifs_dump_mem("existing buf: ",
79 mid_entry->resp_buf, 62);
80 }
81 }
82 spin_unlock(&GlobalMid_Lock);
83 #endif
84 }
85
86 #ifdef CONFIG_PROC_FS
87 static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon)
88 {
89 __u32 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
90
91 seq_printf(m, "%s Mounts: %d ", tcon->treeName, tcon->tc_count);
92 if (tcon->nativeFileSystem)
93 seq_printf(m, "Type: %s ", tcon->nativeFileSystem);
94 seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x\n\tPathComponentMax: %d Status: %d",
95 le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
96 le32_to_cpu(tcon->fsAttrInfo.Attributes),
97 le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
98 tcon->tidStatus);
99 if (dev_type == FILE_DEVICE_DISK)
100 seq_puts(m, " type: DISK ");
101 else if (dev_type == FILE_DEVICE_CD_ROM)
102 seq_puts(m, " type: CDROM ");
103 else
104 seq_printf(m, " type: %d ", dev_type);
105
106 seq_printf(m, "Serial Number: 0x%x", tcon->vol_serial_number);
107
108 if ((tcon->seal) ||
109 (tcon->ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) ||
110 (tcon->share_flags & SHI1005_FLAGS_ENCRYPT_DATA))
111 seq_printf(m, " Encrypted");
112 if (tcon->nocase)
113 seq_printf(m, " nocase");
114 if (tcon->unix_ext)
115 seq_printf(m, " POSIX Extensions");
116 if (tcon->ses->server->ops->dump_share_caps)
117 tcon->ses->server->ops->dump_share_caps(m, tcon);
118
119 if (tcon->need_reconnect)
120 seq_puts(m, "\tDISCONNECTED ");
121 seq_putc(m, '\n');
122 }
123
124 static void
125 cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface)
126 {
127 struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr;
128 struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr;
129
130 seq_printf(m, "\tSpeed: %zu bps\n", iface->speed);
131 seq_puts(m, "\t\tCapabilities: ");
132 if (iface->rdma_capable)
133 seq_puts(m, "rdma ");
134 if (iface->rss_capable)
135 seq_puts(m, "rss ");
136 seq_putc(m, '\n');
137 if (iface->sockaddr.ss_family == AF_INET)
138 seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr);
139 else if (iface->sockaddr.ss_family == AF_INET6)
140 seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr);
141 }
142
143 static int cifs_debug_files_proc_show(struct seq_file *m, void *v)
144 {
145 struct list_head *stmp, *tmp, *tmp1, *tmp2;
146 struct TCP_Server_Info *server;
147 struct cifs_ses *ses;
148 struct cifs_tcon *tcon;
149 struct cifsFileInfo *cfile;
150
151 seq_puts(m, "# Version:1\n");
152 seq_puts(m, "# Format:\n");
153 seq_puts(m, "# <tree id> <persistent fid> <flags> <count> <pid> <uid>");
154 #ifdef CONFIG_CIFS_DEBUG2
155 seq_printf(m, " <filename> <mid>\n");
156 #else
157 seq_printf(m, " <filename>\n");
158 #endif
159 spin_lock(&cifs_tcp_ses_lock);
160 list_for_each(stmp, &cifs_tcp_ses_list) {
161 server = list_entry(stmp, struct TCP_Server_Info,
162 tcp_ses_list);
163 list_for_each(tmp, &server->smb_ses_list) {
164 ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
165 list_for_each(tmp1, &ses->tcon_list) {
166 tcon = list_entry(tmp1, struct cifs_tcon, tcon_list);
167 spin_lock(&tcon->open_file_lock);
168 list_for_each(tmp2, &tcon->openFileList) {
169 cfile = list_entry(tmp2, struct cifsFileInfo,
170 tlist);
171 seq_printf(m,
172 "0x%x 0x%llx 0x%x %d %d %d %s",
173 tcon->tid,
174 cfile->fid.persistent_fid,
175 cfile->f_flags,
176 cfile->count,
177 cfile->pid,
178 from_kuid(&init_user_ns, cfile->uid),
179 cfile->dentry->d_name.name);
180 #ifdef CONFIG_CIFS_DEBUG2
181 seq_printf(m, " 0x%llx\n", cfile->fid.mid);
182 #else
183 seq_printf(m, "\n");
184 #endif
185 }
186 spin_unlock(&tcon->open_file_lock);
187 }
188 }
189 }
190 spin_unlock(&cifs_tcp_ses_lock);
191 seq_putc(m, '\n');
192 return 0;
193 }
194
195 static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
196 {
197 struct list_head *tmp1, *tmp2, *tmp3;
198 struct mid_q_entry *mid_entry;
199 struct TCP_Server_Info *server;
200 struct cifs_ses *ses;
201 struct cifs_tcon *tcon;
202 int i, j;
203
204 seq_puts(m,
205 "Display Internal CIFS Data Structures for Debugging\n"
206 "---------------------------------------------------\n");
207 seq_printf(m, "CIFS Version %s\n", CIFS_VERSION);
208 seq_printf(m, "Features:");
209 #ifdef CONFIG_CIFS_DFS_UPCALL
210 seq_printf(m, " DFS");
211 #endif
212 #ifdef CONFIG_CIFS_FSCACHE
213 seq_printf(m, ",FSCACHE");
214 #endif
215 #ifdef CONFIG_CIFS_SMB_DIRECT
216 seq_printf(m, ",SMB_DIRECT");
217 #endif
218 #ifdef CONFIG_CIFS_STATS2
219 seq_printf(m, ",STATS2");
220 #else
221 seq_printf(m, ",STATS");
222 #endif
223 #ifdef CONFIG_CIFS_DEBUG2
224 seq_printf(m, ",DEBUG2");
225 #elif defined(CONFIG_CIFS_DEBUG)
226 seq_printf(m, ",DEBUG");
227 #endif
228 #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
229 seq_printf(m, ",ALLOW_INSECURE_LEGACY");
230 #endif
231 #ifdef CONFIG_CIFS_WEAK_PW_HASH
232 seq_printf(m, ",WEAK_PW_HASH");
233 #endif
234 #ifdef CONFIG_CIFS_POSIX
235 seq_printf(m, ",CIFS_POSIX");
236 #endif
237 #ifdef CONFIG_CIFS_UPCALL
238 seq_printf(m, ",UPCALL(SPNEGO)");
239 #endif
240 #ifdef CONFIG_CIFS_XATTR
241 seq_printf(m, ",XATTR");
242 #endif
243 seq_printf(m, ",ACL");
244 seq_putc(m, '\n');
245 seq_printf(m, "CIFSMaxBufSize: %d\n", CIFSMaxBufSize);
246 seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
247 seq_printf(m, "Servers:");
248
249 i = 0;
250 spin_lock(&cifs_tcp_ses_lock);
251 list_for_each(tmp1, &cifs_tcp_ses_list) {
252 server = list_entry(tmp1, struct TCP_Server_Info,
253 tcp_ses_list);
254
255 #ifdef CONFIG_CIFS_SMB_DIRECT
256 if (!server->rdma)
257 goto skip_rdma;
258
259 if (!server->smbd_conn) {
260 seq_printf(m, "\nSMBDirect transport not available");
261 goto skip_rdma;
262 }
263
264 seq_printf(m, "\nSMBDirect (in hex) protocol version: %x "
265 "transport status: %x",
266 server->smbd_conn->protocol,
267 server->smbd_conn->transport_status);
268 seq_printf(m, "\nConn receive_credit_max: %x "
269 "send_credit_target: %x max_send_size: %x",
270 server->smbd_conn->receive_credit_max,
271 server->smbd_conn->send_credit_target,
272 server->smbd_conn->max_send_size);
273 seq_printf(m, "\nConn max_fragmented_recv_size: %x "
274 "max_fragmented_send_size: %x max_receive_size:%x",
275 server->smbd_conn->max_fragmented_recv_size,
276 server->smbd_conn->max_fragmented_send_size,
277 server->smbd_conn->max_receive_size);
278 seq_printf(m, "\nConn keep_alive_interval: %x "
279 "max_readwrite_size: %x rdma_readwrite_threshold: %x",
280 server->smbd_conn->keep_alive_interval,
281 server->smbd_conn->max_readwrite_size,
282 server->smbd_conn->rdma_readwrite_threshold);
283 seq_printf(m, "\nDebug count_get_receive_buffer: %x "
284 "count_put_receive_buffer: %x count_send_empty: %x",
285 server->smbd_conn->count_get_receive_buffer,
286 server->smbd_conn->count_put_receive_buffer,
287 server->smbd_conn->count_send_empty);
288 seq_printf(m, "\nRead Queue count_reassembly_queue: %x "
289 "count_enqueue_reassembly_queue: %x "
290 "count_dequeue_reassembly_queue: %x "
291 "fragment_reassembly_remaining: %x "
292 "reassembly_data_length: %x "
293 "reassembly_queue_length: %x",
294 server->smbd_conn->count_reassembly_queue,
295 server->smbd_conn->count_enqueue_reassembly_queue,
296 server->smbd_conn->count_dequeue_reassembly_queue,
297 server->smbd_conn->fragment_reassembly_remaining,
298 server->smbd_conn->reassembly_data_length,
299 server->smbd_conn->reassembly_queue_length);
300 seq_printf(m, "\nCurrent Credits send_credits: %x "
301 "receive_credits: %x receive_credit_target: %x",
302 atomic_read(&server->smbd_conn->send_credits),
303 atomic_read(&server->smbd_conn->receive_credits),
304 server->smbd_conn->receive_credit_target);
305 seq_printf(m, "\nPending send_pending: %x "
306 "send_payload_pending: %x",
307 atomic_read(&server->smbd_conn->send_pending),
308 atomic_read(&server->smbd_conn->send_payload_pending));
309 seq_printf(m, "\nReceive buffers count_receive_queue: %x "
310 "count_empty_packet_queue: %x",
311 server->smbd_conn->count_receive_queue,
312 server->smbd_conn->count_empty_packet_queue);
313 seq_printf(m, "\nMR responder_resources: %x "
314 "max_frmr_depth: %x mr_type: %x",
315 server->smbd_conn->responder_resources,
316 server->smbd_conn->max_frmr_depth,
317 server->smbd_conn->mr_type);
318 seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x",
319 atomic_read(&server->smbd_conn->mr_ready_count),
320 atomic_read(&server->smbd_conn->mr_used_count));
321 skip_rdma:
322 #endif
323 seq_printf(m, "\nNumber of credits: %d Dialect 0x%x",
324 server->credits, server->dialect);
325 if (server->compress_algorithm == SMB3_COMPRESS_LZNT1)
326 seq_printf(m, " COMPRESS_LZNT1");
327 else if (server->compress_algorithm == SMB3_COMPRESS_LZ77)
328 seq_printf(m, " COMPRESS_LZ77");
329 else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF)
330 seq_printf(m, " COMPRESS_LZ77_HUFF");
331 if (server->sign)
332 seq_printf(m, " signed");
333 if (server->posix_ext_supported)
334 seq_printf(m, " posix");
335
336 i++;
337 list_for_each(tmp2, &server->smb_ses_list) {
338 ses = list_entry(tmp2, struct cifs_ses,
339 smb_ses_list);
340 if ((ses->serverDomain == NULL) ||
341 (ses->serverOS == NULL) ||
342 (ses->serverNOS == NULL)) {
343 seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d ",
344 i, ses->serverName, ses->ses_count,
345 ses->capabilities, ses->status);
346 if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
347 seq_printf(m, "Guest\t");
348 else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL)
349 seq_printf(m, "Anonymous\t");
350 } else {
351 seq_printf(m,
352 "\n%d) Name: %s Domain: %s Uses: %d OS:"
353 " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
354 " session status: %d ",
355 i, ses->serverName, ses->serverDomain,
356 ses->ses_count, ses->serverOS, ses->serverNOS,
357 ses->capabilities, ses->status);
358 }
359 if (server->rdma)
360 seq_printf(m, "RDMA\n\t");
361 seq_printf(m, "TCP status: %d Instance: %d\n\tLocal Users To "
362 "Server: %d SecMode: 0x%x Req On Wire: %d",
363 server->tcpStatus,
364 server->reconnect_instance,
365 server->srv_count,
366 server->sec_mode, in_flight(server));
367
368 #ifdef CONFIG_CIFS_STATS2
369 seq_printf(m, " In Send: %d In MaxReq Wait: %d",
370 atomic_read(&server->in_send),
371 atomic_read(&server->num_waiters));
372 #endif
373
374 seq_printf(m, " SessionId: 0x%llx", ses->Suid);
375 if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
376 seq_puts(m, " encrypted");
377 if (ses->sign)
378 seq_puts(m, " signed");
379
380 seq_puts(m, "\n\tShares:");
381 j = 0;
382
383 seq_printf(m, "\n\t%d) IPC: ", j);
384 if (ses->tcon_ipc)
385 cifs_debug_tcon(m, ses->tcon_ipc);
386 else
387 seq_puts(m, "none\n");
388
389 list_for_each(tmp3, &ses->tcon_list) {
390 tcon = list_entry(tmp3, struct cifs_tcon,
391 tcon_list);
392 ++j;
393 seq_printf(m, "\n\t%d) ", j);
394 cifs_debug_tcon(m, tcon);
395 }
396
397 seq_puts(m, "\n\tMIDs:\n");
398
399 spin_lock(&GlobalMid_Lock);
400 list_for_each(tmp3, &server->pending_mid_q) {
401 mid_entry = list_entry(tmp3, struct mid_q_entry,
402 qhead);
403 seq_printf(m, "\tState: %d com: %d pid:"
404 " %d cbdata: %p mid %llu\n",
405 mid_entry->mid_state,
406 le16_to_cpu(mid_entry->command),
407 mid_entry->pid,
408 mid_entry->callback_data,
409 mid_entry->mid);
410 }
411 spin_unlock(&GlobalMid_Lock);
412
413 spin_lock(&ses->iface_lock);
414 if (ses->iface_count)
415 seq_printf(m, "\n\tServer interfaces: %zu\n",
416 ses->iface_count);
417 for (j = 0; j < ses->iface_count; j++) {
418 seq_printf(m, "\t%d)", j);
419 cifs_dump_iface(m, &ses->iface_list[j]);
420 }
421 spin_unlock(&ses->iface_lock);
422 }
423 }
424 spin_unlock(&cifs_tcp_ses_lock);
425 seq_putc(m, '\n');
426
427
428 return 0;
429 }
430
431 static ssize_t cifs_stats_proc_write(struct file *file,
432 const char __user *buffer, size_t count, loff_t *ppos)
433 {
434 bool bv;
435 int rc;
436 struct list_head *tmp1, *tmp2, *tmp3;
437 struct TCP_Server_Info *server;
438 struct cifs_ses *ses;
439 struct cifs_tcon *tcon;
440
441 rc = kstrtobool_from_user(buffer, count, &bv);
442 if (rc == 0) {
443 #ifdef CONFIG_CIFS_STATS2
444 int i;
445
446 atomic_set(&totBufAllocCount, 0);
447 atomic_set(&totSmBufAllocCount, 0);
448 #endif
449 atomic_set(&tcpSesReconnectCount, 0);
450 atomic_set(&tconInfoReconnectCount, 0);
451
452 spin_lock(&GlobalMid_Lock);
453 GlobalMaxActiveXid = 0;
454 GlobalCurrentXid = 0;
455 spin_unlock(&GlobalMid_Lock);
456 spin_lock(&cifs_tcp_ses_lock);
457 list_for_each(tmp1, &cifs_tcp_ses_list) {
458 server = list_entry(tmp1, struct TCP_Server_Info,
459 tcp_ses_list);
460 server->max_in_flight = 0;
461 #ifdef CONFIG_CIFS_STATS2
462 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
463 atomic_set(&server->num_cmds[i], 0);
464 atomic_set(&server->smb2slowcmd[i], 0);
465 server->time_per_cmd[i] = 0;
466 server->slowest_cmd[i] = 0;
467 server->fastest_cmd[0] = 0;
468 }
469 #endif
470 list_for_each(tmp2, &server->smb_ses_list) {
471 ses = list_entry(tmp2, struct cifs_ses,
472 smb_ses_list);
473 list_for_each(tmp3, &ses->tcon_list) {
474 tcon = list_entry(tmp3,
475 struct cifs_tcon,
476 tcon_list);
477 atomic_set(&tcon->num_smbs_sent, 0);
478 spin_lock(&tcon->stat_lock);
479 tcon->bytes_read = 0;
480 tcon->bytes_written = 0;
481 spin_unlock(&tcon->stat_lock);
482 if (server->ops->clear_stats)
483 server->ops->clear_stats(tcon);
484 }
485 }
486 }
487 spin_unlock(&cifs_tcp_ses_lock);
488 } else {
489 return rc;
490 }
491
492 return count;
493 }
494
495 static int cifs_stats_proc_show(struct seq_file *m, void *v)
496 {
497 int i;
498 #ifdef CONFIG_CIFS_STATS2
499 int j;
500 #endif
501 struct list_head *tmp1, *tmp2, *tmp3;
502 struct TCP_Server_Info *server;
503 struct cifs_ses *ses;
504 struct cifs_tcon *tcon;
505
506 seq_printf(m, "Resources in use\nCIFS Session: %d\n",
507 sesInfoAllocCount.counter);
508 seq_printf(m, "Share (unique mount targets): %d\n",
509 tconInfoAllocCount.counter);
510 seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n",
511 bufAllocCount.counter,
512 cifs_min_rcv + tcpSesAllocCount.counter);
513 seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
514 smBufAllocCount.counter, cifs_min_small);
515 #ifdef CONFIG_CIFS_STATS2
516 seq_printf(m, "Total Large %d Small %d Allocations\n",
517 atomic_read(&totBufAllocCount),
518 atomic_read(&totSmBufAllocCount));
519 #endif
520
521 seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
522 seq_printf(m,
523 "\n%d session %d share reconnects\n",
524 tcpSesReconnectCount.counter, tconInfoReconnectCount.counter);
525
526 seq_printf(m,
527 "Total vfs operations: %d maximum at one time: %d\n",
528 GlobalCurrentXid, GlobalMaxActiveXid);
529
530 i = 0;
531 spin_lock(&cifs_tcp_ses_lock);
532 list_for_each(tmp1, &cifs_tcp_ses_list) {
533 server = list_entry(tmp1, struct TCP_Server_Info,
534 tcp_ses_list);
535 seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight);
536 #ifdef CONFIG_CIFS_STATS2
537 seq_puts(m, "\nTotal time spent processing by command. Time ");
538 seq_printf(m, "units are jiffies (%d per second)\n", HZ);
539 seq_puts(m, " SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n");
540 seq_puts(m, " --------\t------\t----------\t-------\t-------\n");
541 for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++)
542 seq_printf(m, " %d\t\t%d\t%llu\t\t%u\t%u\n", j,
543 atomic_read(&server->num_cmds[j]),
544 server->time_per_cmd[j],
545 server->fastest_cmd[j],
546 server->slowest_cmd[j]);
547 for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++)
548 if (atomic_read(&server->smb2slowcmd[j]))
549 seq_printf(m, " %d slow responses from %s for command %d\n",
550 atomic_read(&server->smb2slowcmd[j]),
551 server->hostname, j);
552 #endif
553 list_for_each(tmp2, &server->smb_ses_list) {
554 ses = list_entry(tmp2, struct cifs_ses,
555 smb_ses_list);
556 list_for_each(tmp3, &ses->tcon_list) {
557 tcon = list_entry(tmp3,
558 struct cifs_tcon,
559 tcon_list);
560 i++;
561 seq_printf(m, "\n%d) %s", i, tcon->treeName);
562 if (tcon->need_reconnect)
563 seq_puts(m, "\tDISCONNECTED ");
564 seq_printf(m, "\nSMBs: %d",
565 atomic_read(&tcon->num_smbs_sent));
566 if (server->ops->print_stats)
567 server->ops->print_stats(m, tcon);
568 }
569 }
570 }
571 spin_unlock(&cifs_tcp_ses_lock);
572
573 seq_putc(m, '\n');
574 return 0;
575 }
576
577 static int cifs_stats_proc_open(struct inode *inode, struct file *file)
578 {
579 return single_open(file, cifs_stats_proc_show, NULL);
580 }
581
582 static const struct file_operations cifs_stats_proc_fops = {
583 .open = cifs_stats_proc_open,
584 .read = seq_read,
585 .llseek = seq_lseek,
586 .release = single_release,
587 .write = cifs_stats_proc_write,
588 };
589
590 #ifdef CONFIG_CIFS_SMB_DIRECT
591 #define PROC_FILE_DEFINE(name) \
592 static ssize_t name##_write(struct file *file, const char __user *buffer, \
593 size_t count, loff_t *ppos) \
594 { \
595 int rc; \
596 rc = kstrtoint_from_user(buffer, count, 10, & name); \
597 if (rc) \
598 return rc; \
599 return count; \
600 } \
601 static int name##_proc_show(struct seq_file *m, void *v) \
602 { \
603 seq_printf(m, "%d\n", name ); \
604 return 0; \
605 } \
606 static int name##_open(struct inode *inode, struct file *file) \
607 { \
608 return single_open(file, name##_proc_show, NULL); \
609 } \
610 \
611 static const struct file_operations cifs_##name##_proc_fops = { \
612 .open = name##_open, \
613 .read = seq_read, \
614 .llseek = seq_lseek, \
615 .release = single_release, \
616 .write = name##_write, \
617 }
618
619 PROC_FILE_DEFINE(rdma_readwrite_threshold);
620 PROC_FILE_DEFINE(smbd_max_frmr_depth);
621 PROC_FILE_DEFINE(smbd_keep_alive_interval);
622 PROC_FILE_DEFINE(smbd_max_receive_size);
623 PROC_FILE_DEFINE(smbd_max_fragmented_recv_size);
624 PROC_FILE_DEFINE(smbd_max_send_size);
625 PROC_FILE_DEFINE(smbd_send_credit_target);
626 PROC_FILE_DEFINE(smbd_receive_credit_max);
627 #endif
628
629 static struct proc_dir_entry *proc_fs_cifs;
630 static const struct file_operations cifsFYI_proc_fops;
631 static const struct file_operations cifs_lookup_cache_proc_fops;
632 static const struct file_operations traceSMB_proc_fops;
633 static const struct file_operations cifs_security_flags_proc_fops;
634 static const struct file_operations cifs_linux_ext_proc_fops;
635
636 void
637 cifs_proc_init(void)
638 {
639 proc_fs_cifs = proc_mkdir("fs/cifs", NULL);
640 if (proc_fs_cifs == NULL)
641 return;
642
643 proc_create_single("DebugData", 0, proc_fs_cifs,
644 cifs_debug_data_proc_show);
645
646 proc_create_single("open_files", 0400, proc_fs_cifs,
647 cifs_debug_files_proc_show);
648
649 proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_fops);
650 proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_fops);
651 proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_fops);
652 proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs,
653 &cifs_linux_ext_proc_fops);
654 proc_create("SecurityFlags", 0644, proc_fs_cifs,
655 &cifs_security_flags_proc_fops);
656 proc_create("LookupCacheEnabled", 0644, proc_fs_cifs,
657 &cifs_lookup_cache_proc_fops);
658
659 #ifdef CONFIG_CIFS_DFS_UPCALL
660 proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_fops);
661 #endif
662
663 #ifdef CONFIG_CIFS_SMB_DIRECT
664 proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs,
665 &cifs_rdma_readwrite_threshold_proc_fops);
666 proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs,
667 &cifs_smbd_max_frmr_depth_proc_fops);
668 proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs,
669 &cifs_smbd_keep_alive_interval_proc_fops);
670 proc_create("smbd_max_receive_size", 0644, proc_fs_cifs,
671 &cifs_smbd_max_receive_size_proc_fops);
672 proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs,
673 &cifs_smbd_max_fragmented_recv_size_proc_fops);
674 proc_create("smbd_max_send_size", 0644, proc_fs_cifs,
675 &cifs_smbd_max_send_size_proc_fops);
676 proc_create("smbd_send_credit_target", 0644, proc_fs_cifs,
677 &cifs_smbd_send_credit_target_proc_fops);
678 proc_create("smbd_receive_credit_max", 0644, proc_fs_cifs,
679 &cifs_smbd_receive_credit_max_proc_fops);
680 #endif
681 }
682
683 void
684 cifs_proc_clean(void)
685 {
686 if (proc_fs_cifs == NULL)
687 return;
688
689 remove_proc_entry("DebugData", proc_fs_cifs);
690 remove_proc_entry("open_files", proc_fs_cifs);
691 remove_proc_entry("cifsFYI", proc_fs_cifs);
692 remove_proc_entry("traceSMB", proc_fs_cifs);
693 remove_proc_entry("Stats", proc_fs_cifs);
694 remove_proc_entry("SecurityFlags", proc_fs_cifs);
695 remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
696 remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
697
698 #ifdef CONFIG_CIFS_DFS_UPCALL
699 remove_proc_entry("dfscache", proc_fs_cifs);
700 #endif
701 #ifdef CONFIG_CIFS_SMB_DIRECT
702 remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs);
703 remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs);
704 remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs);
705 remove_proc_entry("smbd_max_receive_size", proc_fs_cifs);
706 remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs);
707 remove_proc_entry("smbd_max_send_size", proc_fs_cifs);
708 remove_proc_entry("smbd_send_credit_target", proc_fs_cifs);
709 remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs);
710 #endif
711 remove_proc_entry("fs/cifs", NULL);
712 }
713
714 static int cifsFYI_proc_show(struct seq_file *m, void *v)
715 {
716 seq_printf(m, "%d\n", cifsFYI);
717 return 0;
718 }
719
720 static int cifsFYI_proc_open(struct inode *inode, struct file *file)
721 {
722 return single_open(file, cifsFYI_proc_show, NULL);
723 }
724
725 static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
726 size_t count, loff_t *ppos)
727 {
728 char c[2] = { '\0' };
729 bool bv;
730 int rc;
731
732 rc = get_user(c[0], buffer);
733 if (rc)
734 return rc;
735 if (strtobool(c, &bv) == 0)
736 cifsFYI = bv;
737 else if ((c[0] > '1') && (c[0] <= '9'))
738 cifsFYI = (int) (c[0] - '0');
739 else
740 return -EINVAL;
741
742 return count;
743 }
744
745 static const struct file_operations cifsFYI_proc_fops = {
746 .open = cifsFYI_proc_open,
747 .read = seq_read,
748 .llseek = seq_lseek,
749 .release = single_release,
750 .write = cifsFYI_proc_write,
751 };
752
753 static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
754 {
755 seq_printf(m, "%d\n", linuxExtEnabled);
756 return 0;
757 }
758
759 static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file)
760 {
761 return single_open(file, cifs_linux_ext_proc_show, NULL);
762 }
763
764 static ssize_t cifs_linux_ext_proc_write(struct file *file,
765 const char __user *buffer, size_t count, loff_t *ppos)
766 {
767 int rc;
768
769 rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled);
770 if (rc)
771 return rc;
772
773 return count;
774 }
775
776 static const struct file_operations cifs_linux_ext_proc_fops = {
777 .open = cifs_linux_ext_proc_open,
778 .read = seq_read,
779 .llseek = seq_lseek,
780 .release = single_release,
781 .write = cifs_linux_ext_proc_write,
782 };
783
784 static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
785 {
786 seq_printf(m, "%d\n", lookupCacheEnabled);
787 return 0;
788 }
789
790 static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file)
791 {
792 return single_open(file, cifs_lookup_cache_proc_show, NULL);
793 }
794
795 static ssize_t cifs_lookup_cache_proc_write(struct file *file,
796 const char __user *buffer, size_t count, loff_t *ppos)
797 {
798 int rc;
799
800 rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled);
801 if (rc)
802 return rc;
803
804 return count;
805 }
806
807 static const struct file_operations cifs_lookup_cache_proc_fops = {
808 .open = cifs_lookup_cache_proc_open,
809 .read = seq_read,
810 .llseek = seq_lseek,
811 .release = single_release,
812 .write = cifs_lookup_cache_proc_write,
813 };
814
815 static int traceSMB_proc_show(struct seq_file *m, void *v)
816 {
817 seq_printf(m, "%d\n", traceSMB);
818 return 0;
819 }
820
821 static int traceSMB_proc_open(struct inode *inode, struct file *file)
822 {
823 return single_open(file, traceSMB_proc_show, NULL);
824 }
825
826 static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
827 size_t count, loff_t *ppos)
828 {
829 int rc;
830
831 rc = kstrtobool_from_user(buffer, count, &traceSMB);
832 if (rc)
833 return rc;
834
835 return count;
836 }
837
838 static const struct file_operations traceSMB_proc_fops = {
839 .open = traceSMB_proc_open,
840 .read = seq_read,
841 .llseek = seq_lseek,
842 .release = single_release,
843 .write = traceSMB_proc_write,
844 };
845
846 static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
847 {
848 seq_printf(m, "0x%x\n", global_secflags);
849 return 0;
850 }
851
852 static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
853 {
854 return single_open(file, cifs_security_flags_proc_show, NULL);
855 }
856
857
858
859
860
861
862 static void
863 cifs_security_flags_handle_must_flags(unsigned int *flags)
864 {
865 unsigned int signflags = *flags & CIFSSEC_MUST_SIGN;
866
867 if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5)
868 *flags = CIFSSEC_MUST_KRB5;
869 else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP)
870 *flags = CIFSSEC_MUST_NTLMSSP;
871 else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2)
872 *flags = CIFSSEC_MUST_NTLMV2;
873 else if ((*flags & CIFSSEC_MUST_NTLM) == CIFSSEC_MUST_NTLM)
874 *flags = CIFSSEC_MUST_NTLM;
875 else if (CIFSSEC_MUST_LANMAN &&
876 (*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN)
877 *flags = CIFSSEC_MUST_LANMAN;
878 else if (CIFSSEC_MUST_PLNTXT &&
879 (*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT)
880 *flags = CIFSSEC_MUST_PLNTXT;
881
882 *flags |= signflags;
883 }
884
885 static ssize_t cifs_security_flags_proc_write(struct file *file,
886 const char __user *buffer, size_t count, loff_t *ppos)
887 {
888 int rc;
889 unsigned int flags;
890 char flags_string[12];
891 bool bv;
892
893 if ((count < 1) || (count > 11))
894 return -EINVAL;
895
896 memset(flags_string, 0, 12);
897
898 if (copy_from_user(flags_string, buffer, count))
899 return -EFAULT;
900
901 if (count < 3) {
902
903 if (strtobool(flags_string, &bv) == 0) {
904 global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF;
905 return count;
906 } else if (!isdigit(flags_string[0])) {
907 cifs_dbg(VFS, "Invalid SecurityFlags: %s\n",
908 flags_string);
909 return -EINVAL;
910 }
911 }
912
913
914 rc = kstrtouint(flags_string, 0, &flags);
915 if (rc) {
916 cifs_dbg(VFS, "Invalid SecurityFlags: %s\n",
917 flags_string);
918 return rc;
919 }
920
921 cifs_dbg(FYI, "sec flags 0x%x\n", flags);
922
923 if (flags == 0) {
924 cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string);
925 return -EINVAL;
926 }
927
928 if (flags & ~CIFSSEC_MASK) {
929 cifs_dbg(VFS, "Unsupported security flags: 0x%x\n",
930 flags & ~CIFSSEC_MASK);
931 return -EINVAL;
932 }
933
934 cifs_security_flags_handle_must_flags(&flags);
935
936
937 global_secflags = flags;
938 if (global_secflags & CIFSSEC_MUST_SIGN) {
939
940 global_secflags |= CIFSSEC_MAY_SIGN;
941 cifs_dbg(FYI, "packet signing now required\n");
942 } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) {
943 cifs_dbg(FYI, "packet signing disabled\n");
944 }
945
946 return count;
947 }
948
949 static const struct file_operations cifs_security_flags_proc_fops = {
950 .open = cifs_security_flags_proc_open,
951 .read = seq_read,
952 .llseek = seq_lseek,
953 .release = single_release,
954 .write = cifs_security_flags_proc_write,
955 };
956 #else
957 inline void cifs_proc_init(void)
958 {
959 }
960
961 inline void cifs_proc_clean(void)
962 {
963 }
964 #endif