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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/cifs_debug.c | |
3 | * | |
b8643e1b | 4 | * Copyright (C) International Business Machines Corp., 2000,2005 |
1da177e4 LT |
5 | * |
6 | * Modified by Steve French (sfrench@us.ibm.com) | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
221601c3 | 10 | * the Free Software Foundation; either version 2 of the License, or |
1da177e4 | 11 | * (at your option) any later version. |
221601c3 | 12 | * |
1da177e4 LT |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
16 | * the GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
221601c3 | 19 | * along with this program; if not, write to the Free Software |
1da177e4 LT |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
21 | */ | |
22 | #include <linux/fs.h> | |
23 | #include <linux/string.h> | |
24 | #include <linux/ctype.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/proc_fs.h> | |
7c0f6ba6 | 27 | #include <linux/uaccess.h> |
1da177e4 LT |
28 | #include "cifspdu.h" |
29 | #include "cifsglob.h" | |
30 | #include "cifsproto.h" | |
31 | #include "cifs_debug.h" | |
6c91d362 | 32 | #include "cifsfs.h" |
d8ec913b LL |
33 | #ifdef CONFIG_CIFS_SMB_DIRECT |
34 | #include "smbdirect.h" | |
35 | #endif | |
1da177e4 LT |
36 | |
37 | void | |
38 | cifs_dump_mem(char *label, void *data, int length) | |
39 | { | |
0b456f04 | 40 | pr_debug("%s: dump of %d bytes of data at 0x%p\n", label, length, data); |
55d83e0d AS |
41 | print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 4, |
42 | data, length, true); | |
1da177e4 LT |
43 | } |
44 | ||
d4e4854f | 45 | void cifs_dump_detail(void *buf) |
3979877e | 46 | { |
8aa26f3e | 47 | #ifdef CONFIG_CIFS_DEBUG2 |
d4e4854f PS |
48 | struct smb_hdr *smb = (struct smb_hdr *)buf; |
49 | ||
f96637be JP |
50 | cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d\n", |
51 | smb->Command, smb->Status.CifsError, | |
52 | smb->Flags, smb->Flags2, smb->Mid, smb->Pid); | |
53 | cifs_dbg(VFS, "smb buf %p len %u\n", smb, smbCalcSize(smb)); | |
8aa26f3e | 54 | #endif /* CONFIG_CIFS_DEBUG2 */ |
3979877e SF |
55 | } |
56 | ||
ffdd6e4d | 57 | void cifs_dump_mids(struct TCP_Server_Info *server) |
3979877e | 58 | { |
8aa26f3e | 59 | #ifdef CONFIG_CIFS_DEBUG2 |
3979877e | 60 | struct list_head *tmp; |
ffdd6e4d | 61 | struct mid_q_entry *mid_entry; |
3979877e | 62 | |
221601c3 | 63 | if (server == NULL) |
3979877e SF |
64 | return; |
65 | ||
f96637be | 66 | cifs_dbg(VFS, "Dump pending requests:\n"); |
3979877e SF |
67 | spin_lock(&GlobalMid_Lock); |
68 | list_for_each(tmp, &server->pending_mid_q) { | |
69 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); | |
f96637be JP |
70 | cifs_dbg(VFS, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu\n", |
71 | mid_entry->mid_state, | |
72 | le16_to_cpu(mid_entry->command), | |
73 | mid_entry->pid, | |
74 | mid_entry->callback_data, | |
75 | mid_entry->mid); | |
3979877e | 76 | #ifdef CONFIG_CIFS_STATS2 |
f96637be JP |
77 | cifs_dbg(VFS, "IsLarge: %d buf: %p time rcv: %ld now: %ld\n", |
78 | mid_entry->large_buf, | |
79 | mid_entry->resp_buf, | |
80 | mid_entry->when_received, | |
81 | jiffies); | |
3979877e | 82 | #endif /* STATS2 */ |
f96637be JP |
83 | cifs_dbg(VFS, "IsMult: %d IsEnd: %d\n", |
84 | mid_entry->multiRsp, mid_entry->multiEnd); | |
ad8b15f0 SF |
85 | if (mid_entry->resp_buf) { |
86 | cifs_dump_detail(mid_entry->resp_buf); | |
87 | cifs_dump_mem("existing buf: ", | |
88 | mid_entry->resp_buf, 62); | |
3979877e SF |
89 | } |
90 | } | |
91 | spin_unlock(&GlobalMid_Lock); | |
3979877e | 92 | #endif /* CONFIG_CIFS_DEBUG2 */ |
8aa26f3e | 93 | } |
3979877e | 94 | |
1da177e4 | 95 | #ifdef CONFIG_PROC_FS |
02cf5905 AA |
96 | static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon) |
97 | { | |
98 | __u32 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType); | |
99 | ||
100 | seq_printf(m, "%s Mounts: %d ", tcon->treeName, tcon->tc_count); | |
101 | if (tcon->nativeFileSystem) | |
102 | seq_printf(m, "Type: %s ", tcon->nativeFileSystem); | |
103 | seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x\n\tPathComponentMax: %d Status: %d", | |
104 | le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics), | |
105 | le32_to_cpu(tcon->fsAttrInfo.Attributes), | |
106 | le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength), | |
107 | tcon->tidStatus); | |
108 | if (dev_type == FILE_DEVICE_DISK) | |
109 | seq_puts(m, " type: DISK "); | |
110 | else if (dev_type == FILE_DEVICE_CD_ROM) | |
111 | seq_puts(m, " type: CDROM "); | |
112 | else | |
113 | seq_printf(m, " type: %d ", dev_type); | |
ede2e520 SF |
114 | if (tcon->seal) |
115 | seq_printf(m, " Encrypted"); | |
116 | if (tcon->unix_ext) | |
117 | seq_printf(m, " POSIX Extensions"); | |
02cf5905 AA |
118 | if (tcon->ses->server->ops->dump_share_caps) |
119 | tcon->ses->server->ops->dump_share_caps(m, tcon); | |
120 | ||
121 | if (tcon->need_reconnect) | |
122 | seq_puts(m, "\tDISCONNECTED "); | |
123 | seq_putc(m, '\n'); | |
124 | } | |
125 | ||
f984c7b9 | 126 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 127 | { |
f1987b44 | 128 | struct list_head *tmp1, *tmp2, *tmp3; |
ffdd6e4d | 129 | struct mid_q_entry *mid_entry; |
14fbf50d | 130 | struct TCP_Server_Info *server; |
96daf2b0 SF |
131 | struct cifs_ses *ses; |
132 | struct cifs_tcon *tcon; | |
f1987b44 | 133 | int i, j; |
1da177e4 | 134 | |
f984c7b9 | 135 | seq_puts(m, |
1da177e4 LT |
136 | "Display Internal CIFS Data Structures for Debugging\n" |
137 | "---------------------------------------------------\n"); | |
f984c7b9 | 138 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 139 | seq_printf(m, "Features:"); |
f579903e | 140 | #ifdef CONFIG_CIFS_DFS_UPCALL |
ca40b714 | 141 | seq_printf(m, " dfs"); |
f579903e SJ |
142 | #endif |
143 | #ifdef CONFIG_CIFS_FSCACHE | |
ca40b714 | 144 | seq_printf(m, " fscache"); |
f579903e SJ |
145 | #endif |
146 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
ca40b714 | 147 | seq_printf(m, " lanman"); |
f579903e SJ |
148 | #endif |
149 | #ifdef CONFIG_CIFS_POSIX | |
ca40b714 | 150 | seq_printf(m, " posix"); |
f579903e SJ |
151 | #endif |
152 | #ifdef CONFIG_CIFS_UPCALL | |
ca40b714 | 153 | seq_printf(m, " spnego"); |
f579903e SJ |
154 | #endif |
155 | #ifdef CONFIG_CIFS_XATTR | |
ca40b714 JL |
156 | seq_printf(m, " xattr"); |
157 | #endif | |
158 | #ifdef CONFIG_CIFS_ACL | |
159 | seq_printf(m, " acl"); | |
f579903e SJ |
160 | #endif |
161 | seq_putc(m, '\n'); | |
f984c7b9 AD |
162 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
163 | seq_printf(m, "Servers:"); | |
1da177e4 LT |
164 | |
165 | i = 0; | |
3f9bcca7 | 166 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
167 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
168 | server = list_entry(tmp1, struct TCP_Server_Info, | |
14fbf50d | 169 | tcp_ses_list); |
08a3b969 LL |
170 | |
171 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
172 | if (!server->rdma) | |
173 | goto skip_rdma; | |
174 | ||
175 | seq_printf(m, "\nSMBDirect (in hex) protocol version: %x " | |
176 | "transport status: %x", | |
177 | server->smbd_conn->protocol, | |
178 | server->smbd_conn->transport_status); | |
179 | seq_printf(m, "\nConn receive_credit_max: %x " | |
180 | "send_credit_target: %x max_send_size: %x", | |
181 | server->smbd_conn->receive_credit_max, | |
182 | server->smbd_conn->send_credit_target, | |
183 | server->smbd_conn->max_send_size); | |
184 | seq_printf(m, "\nConn max_fragmented_recv_size: %x " | |
185 | "max_fragmented_send_size: %x max_receive_size:%x", | |
186 | server->smbd_conn->max_fragmented_recv_size, | |
187 | server->smbd_conn->max_fragmented_send_size, | |
188 | server->smbd_conn->max_receive_size); | |
189 | seq_printf(m, "\nConn keep_alive_interval: %x " | |
190 | "max_readwrite_size: %x rdma_readwrite_threshold: %x", | |
191 | server->smbd_conn->keep_alive_interval, | |
192 | server->smbd_conn->max_readwrite_size, | |
193 | server->smbd_conn->rdma_readwrite_threshold); | |
194 | seq_printf(m, "\nDebug count_get_receive_buffer: %x " | |
195 | "count_put_receive_buffer: %x count_send_empty: %x", | |
196 | server->smbd_conn->count_get_receive_buffer, | |
197 | server->smbd_conn->count_put_receive_buffer, | |
198 | server->smbd_conn->count_send_empty); | |
199 | seq_printf(m, "\nRead Queue count_reassembly_queue: %x " | |
200 | "count_enqueue_reassembly_queue: %x " | |
201 | "count_dequeue_reassembly_queue: %x " | |
202 | "fragment_reassembly_remaining: %x " | |
203 | "reassembly_data_length: %x " | |
204 | "reassembly_queue_length: %x", | |
205 | server->smbd_conn->count_reassembly_queue, | |
206 | server->smbd_conn->count_enqueue_reassembly_queue, | |
207 | server->smbd_conn->count_dequeue_reassembly_queue, | |
208 | server->smbd_conn->fragment_reassembly_remaining, | |
209 | server->smbd_conn->reassembly_data_length, | |
210 | server->smbd_conn->reassembly_queue_length); | |
211 | seq_printf(m, "\nCurrent Credits send_credits: %x " | |
212 | "receive_credits: %x receive_credit_target: %x", | |
213 | atomic_read(&server->smbd_conn->send_credits), | |
214 | atomic_read(&server->smbd_conn->receive_credits), | |
215 | server->smbd_conn->receive_credit_target); | |
216 | seq_printf(m, "\nPending send_pending: %x send_payload_pending:" | |
217 | " %x smbd_send_pending: %x smbd_recv_pending: %x", | |
218 | atomic_read(&server->smbd_conn->send_pending), | |
219 | atomic_read(&server->smbd_conn->send_payload_pending), | |
220 | server->smbd_conn->smbd_send_pending, | |
221 | server->smbd_conn->smbd_recv_pending); | |
222 | seq_printf(m, "\nReceive buffers count_receive_queue: %x " | |
223 | "count_empty_packet_queue: %x", | |
224 | server->smbd_conn->count_receive_queue, | |
225 | server->smbd_conn->count_empty_packet_queue); | |
226 | seq_printf(m, "\nMR responder_resources: %x " | |
227 | "max_frmr_depth: %x mr_type: %x", | |
228 | server->smbd_conn->responder_resources, | |
229 | server->smbd_conn->max_frmr_depth, | |
230 | server->smbd_conn->mr_type); | |
231 | seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x", | |
232 | atomic_read(&server->smbd_conn->mr_ready_count), | |
233 | atomic_read(&server->smbd_conn->mr_used_count)); | |
234 | skip_rdma: | |
235 | #endif | |
ede2e520 SF |
236 | seq_printf(m, "\nNumber of credits: %d Dialect 0x%x", |
237 | server->credits, server->dialect); | |
238 | if (server->sign) | |
239 | seq_printf(m, " signed"); | |
1da177e4 | 240 | i++; |
14fbf50d | 241 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 242 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d JL |
243 | smb_ses_list); |
244 | if ((ses->serverDomain == NULL) || | |
245 | (ses->serverOS == NULL) || | |
246 | (ses->serverNOS == NULL)) { | |
1fa089ec SF |
247 | seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d\t", |
248 | i, ses->serverName, ses->ses_count, | |
249 | ses->capabilities, ses->status); | |
250 | if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) | |
251 | seq_printf(m, "Guest\t"); | |
252 | else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) | |
253 | seq_printf(m, "Anonymous\t"); | |
14fbf50d JL |
254 | } else { |
255 | seq_printf(m, | |
f1987b44 JL |
256 | "\n%d) Name: %s Domain: %s Uses: %d OS:" |
257 | " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
221601c3 | 258 | " session status: %d\t", |
b8643e1b | 259 | i, ses->serverName, ses->serverDomain, |
14fbf50d | 260 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 261 | ses->capabilities, ses->status); |
14fbf50d | 262 | } |
8339dd32 LL |
263 | if (server->rdma) |
264 | seq_printf(m, "RDMA\n\t"); | |
f984c7b9 | 265 | seq_printf(m, "TCP status: %d\n\tLocal Users To " |
14fbf50d JL |
266 | "Server: %d SecMode: 0x%x Req On Wire: %d", |
267 | server->tcpStatus, server->srv_count, | |
fc40f9cf | 268 | server->sec_mode, in_flight(server)); |
131afd0b SF |
269 | |
270 | #ifdef CONFIG_CIFS_STATS2 | |
f984c7b9 | 271 | seq_printf(m, " In Send: %d In MaxReq Wait: %d", |
789e6661 | 272 | atomic_read(&server->in_send), |
14fbf50d | 273 | atomic_read(&server->num_waiters)); |
131afd0b SF |
274 | #endif |
275 | ||
f1987b44 JL |
276 | seq_puts(m, "\n\tShares:"); |
277 | j = 0; | |
02cf5905 AA |
278 | |
279 | seq_printf(m, "\n\t%d) IPC: ", j); | |
280 | if (ses->tcon_ipc) | |
281 | cifs_debug_tcon(m, ses->tcon_ipc); | |
282 | else | |
283 | seq_puts(m, "none\n"); | |
284 | ||
f1987b44 | 285 | list_for_each(tmp3, &ses->tcon_list) { |
96daf2b0 | 286 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
287 | tcon_list); |
288 | ++j; | |
02cf5905 AA |
289 | seq_printf(m, "\n\t%d) ", j); |
290 | cifs_debug_tcon(m, tcon); | |
f1987b44 JL |
291 | } |
292 | ||
293 | seq_puts(m, "\n\tMIDs:\n"); | |
1da177e4 LT |
294 | |
295 | spin_lock(&GlobalMid_Lock); | |
14fbf50d | 296 | list_for_each(tmp3, &server->pending_mid_q) { |
f1987b44 | 297 | mid_entry = list_entry(tmp3, struct mid_q_entry, |
1da177e4 | 298 | qhead); |
f1987b44 | 299 | seq_printf(m, "\tState: %d com: %d pid:" |
7c9421e1 PS |
300 | " %d cbdata: %p mid %llu\n", |
301 | mid_entry->mid_state, | |
302 | le16_to_cpu(mid_entry->command), | |
303 | mid_entry->pid, | |
304 | mid_entry->callback_data, | |
305 | mid_entry->mid); | |
1da177e4 | 306 | } |
221601c3 | 307 | spin_unlock(&GlobalMid_Lock); |
1da177e4 | 308 | } |
1da177e4 | 309 | } |
3f9bcca7 | 310 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 311 | seq_putc(m, '\n'); |
1da177e4 | 312 | |
1da177e4 | 313 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
314 | return 0; |
315 | } | |
1da177e4 | 316 | |
f984c7b9 AD |
317 | static int cifs_debug_data_proc_open(struct inode *inode, struct file *file) |
318 | { | |
319 | return single_open(file, cifs_debug_data_proc_show, NULL); | |
1da177e4 LT |
320 | } |
321 | ||
f984c7b9 | 322 | static const struct file_operations cifs_debug_data_proc_fops = { |
f984c7b9 AD |
323 | .open = cifs_debug_data_proc_open, |
324 | .read = seq_read, | |
325 | .llseek = seq_lseek, | |
326 | .release = single_release, | |
327 | }; | |
1047abc1 | 328 | |
f984c7b9 AD |
329 | #ifdef CONFIG_CIFS_STATS |
330 | static ssize_t cifs_stats_proc_write(struct file *file, | |
331 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 332 | { |
28e2aed2 | 333 | bool bv; |
221601c3 | 334 | int rc; |
f1987b44 JL |
335 | struct list_head *tmp1, *tmp2, *tmp3; |
336 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
337 | struct cifs_ses *ses; |
338 | struct cifs_tcon *tcon; | |
1047abc1 | 339 | |
1404297e KC |
340 | rc = kstrtobool_from_user(buffer, count, &bv); |
341 | if (rc == 0) { | |
4498eed5 SF |
342 | #ifdef CONFIG_CIFS_STATS2 |
343 | atomic_set(&totBufAllocCount, 0); | |
344 | atomic_set(&totSmBufAllocCount, 0); | |
345 | #endif /* CONFIG_CIFS_STATS2 */ | |
3f9bcca7 | 346 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
347 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
348 | server = list_entry(tmp1, struct TCP_Server_Info, | |
349 | tcp_ses_list); | |
c2b3382c | 350 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 351 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 352 | smb_ses_list); |
f1987b44 JL |
353 | list_for_each(tmp3, &ses->tcon_list) { |
354 | tcon = list_entry(tmp3, | |
96daf2b0 | 355 | struct cifs_tcon, |
f1987b44 JL |
356 | tcon_list); |
357 | atomic_set(&tcon->num_smbs_sent, 0); | |
44c58186 PS |
358 | if (server->ops->clear_stats) |
359 | server->ops->clear_stats(tcon); | |
f1987b44 JL |
360 | } |
361 | } | |
1047abc1 | 362 | } |
3f9bcca7 | 363 | spin_unlock(&cifs_tcp_ses_lock); |
1404297e KC |
364 | } else { |
365 | return rc; | |
1047abc1 SF |
366 | } |
367 | ||
221601c3 | 368 | return count; |
1047abc1 SF |
369 | } |
370 | ||
f984c7b9 | 371 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 372 | { |
f984c7b9 | 373 | int i; |
f1987b44 JL |
374 | struct list_head *tmp1, *tmp2, *tmp3; |
375 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
376 | struct cifs_ses *ses; |
377 | struct cifs_tcon *tcon; | |
1da177e4 | 378 | |
f984c7b9 | 379 | seq_printf(m, |
1da177e4 LT |
380 | "Resources in use\nCIFS Session: %d\n", |
381 | sesInfoAllocCount.counter); | |
f984c7b9 | 382 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 383 | tconInfoAllocCount.counter); |
f984c7b9 | 384 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
385 | bufAllocCount.counter, |
386 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 387 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 388 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 389 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 390 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 391 | atomic_read(&totBufAllocCount), |
221601c3 | 392 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
393 | #endif /* CONFIG_CIFS_STATS2 */ |
394 | ||
8097531a | 395 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 396 | seq_printf(m, |
1da177e4 | 397 | "\n%d session %d share reconnects\n", |
221601c3 | 398 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 399 | |
f984c7b9 | 400 | seq_printf(m, |
1da177e4 | 401 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 402 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
403 | |
404 | i = 0; | |
3f9bcca7 | 405 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
406 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
407 | server = list_entry(tmp1, struct TCP_Server_Info, | |
408 | tcp_ses_list); | |
409 | list_for_each(tmp2, &server->smb_ses_list) { | |
96daf2b0 | 410 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
411 | smb_ses_list); |
412 | list_for_each(tmp3, &ses->tcon_list) { | |
413 | tcon = list_entry(tmp3, | |
96daf2b0 | 414 | struct cifs_tcon, |
f1987b44 JL |
415 | tcon_list); |
416 | i++; | |
417 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
418 | if (tcon->need_reconnect) | |
419 | seq_puts(m, "\tDISCONNECTED "); | |
44c58186 PS |
420 | seq_printf(m, "\nSMBs: %d", |
421 | atomic_read(&tcon->num_smbs_sent)); | |
422 | if (server->ops->print_stats) | |
423 | server->ops->print_stats(m, tcon); | |
f1987b44 JL |
424 | } |
425 | } | |
1da177e4 | 426 | } |
3f9bcca7 | 427 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 428 | |
f984c7b9 AD |
429 | seq_putc(m, '\n'); |
430 | return 0; | |
431 | } | |
221601c3 | 432 | |
f984c7b9 AD |
433 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
434 | { | |
435 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 436 | } |
f984c7b9 AD |
437 | |
438 | static const struct file_operations cifs_stats_proc_fops = { | |
f984c7b9 AD |
439 | .open = cifs_stats_proc_open, |
440 | .read = seq_read, | |
441 | .llseek = seq_lseek, | |
442 | .release = single_release, | |
443 | .write = cifs_stats_proc_write, | |
444 | }; | |
90c81e0b | 445 | #endif /* STATS */ |
1da177e4 | 446 | |
d8ec913b LL |
447 | #ifdef CONFIG_CIFS_SMB_DIRECT |
448 | #define PROC_FILE_DEFINE(name) \ | |
449 | static ssize_t name##_write(struct file *file, const char __user *buffer, \ | |
450 | size_t count, loff_t *ppos) \ | |
451 | { \ | |
452 | int rc; \ | |
453 | rc = kstrtoint_from_user(buffer, count, 10, & name); \ | |
454 | if (rc) \ | |
455 | return rc; \ | |
456 | return count; \ | |
457 | } \ | |
458 | static int name##_proc_show(struct seq_file *m, void *v) \ | |
459 | { \ | |
460 | seq_printf(m, "%d\n", name ); \ | |
461 | return 0; \ | |
462 | } \ | |
463 | static int name##_open(struct inode *inode, struct file *file) \ | |
464 | { \ | |
465 | return single_open(file, name##_proc_show, NULL); \ | |
466 | } \ | |
467 | \ | |
468 | static const struct file_operations cifs_##name##_proc_fops = { \ | |
469 | .open = name##_open, \ | |
470 | .read = seq_read, \ | |
471 | .llseek = seq_lseek, \ | |
472 | .release = single_release, \ | |
473 | .write = name##_write, \ | |
474 | } | |
475 | ||
d8ec913b LL |
476 | PROC_FILE_DEFINE(rdma_readwrite_threshold); |
477 | PROC_FILE_DEFINE(smbd_max_frmr_depth); | |
478 | PROC_FILE_DEFINE(smbd_keep_alive_interval); | |
479 | PROC_FILE_DEFINE(smbd_max_receive_size); | |
480 | PROC_FILE_DEFINE(smbd_max_fragmented_recv_size); | |
481 | PROC_FILE_DEFINE(smbd_max_send_size); | |
482 | PROC_FILE_DEFINE(smbd_send_credit_target); | |
483 | PROC_FILE_DEFINE(smbd_receive_credit_max); | |
484 | #endif | |
485 | ||
1da177e4 | 486 | static struct proc_dir_entry *proc_fs_cifs; |
f984c7b9 | 487 | static const struct file_operations cifsFYI_proc_fops; |
f984c7b9 AD |
488 | static const struct file_operations cifs_lookup_cache_proc_fops; |
489 | static const struct file_operations traceSMB_proc_fops; | |
f984c7b9 | 490 | static const struct file_operations cifs_security_flags_proc_fops; |
f984c7b9 | 491 | static const struct file_operations cifs_linux_ext_proc_fops; |
1da177e4 LT |
492 | |
493 | void | |
494 | cifs_proc_init(void) | |
495 | { | |
36a5aeb8 | 496 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
497 | if (proc_fs_cifs == NULL) |
498 | return; | |
499 | ||
f984c7b9 | 500 | proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops); |
1da177e4 LT |
501 | |
502 | #ifdef CONFIG_CIFS_STATS | |
f984c7b9 | 503 | proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops); |
90c81e0b | 504 | #endif /* STATS */ |
f984c7b9 AD |
505 | proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops); |
506 | proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops); | |
99b1f5b2 SF |
507 | proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs, |
508 | &cifs_linux_ext_proc_fops); | |
99b1f5b2 SF |
509 | proc_create("SecurityFlags", 0, proc_fs_cifs, |
510 | &cifs_security_flags_proc_fops); | |
511 | proc_create("LookupCacheEnabled", 0, proc_fs_cifs, | |
512 | &cifs_lookup_cache_proc_fops); | |
d8ec913b LL |
513 | #ifdef CONFIG_CIFS_SMB_DIRECT |
514 | proc_create("rdma_readwrite_threshold", 0, proc_fs_cifs, | |
515 | &cifs_rdma_readwrite_threshold_proc_fops); | |
516 | proc_create("smbd_max_frmr_depth", 0, proc_fs_cifs, | |
517 | &cifs_smbd_max_frmr_depth_proc_fops); | |
518 | proc_create("smbd_keep_alive_interval", 0, proc_fs_cifs, | |
519 | &cifs_smbd_keep_alive_interval_proc_fops); | |
520 | proc_create("smbd_max_receive_size", 0, proc_fs_cifs, | |
521 | &cifs_smbd_max_receive_size_proc_fops); | |
522 | proc_create("smbd_max_fragmented_recv_size", 0, proc_fs_cifs, | |
523 | &cifs_smbd_max_fragmented_recv_size_proc_fops); | |
524 | proc_create("smbd_max_send_size", 0, proc_fs_cifs, | |
525 | &cifs_smbd_max_send_size_proc_fops); | |
526 | proc_create("smbd_send_credit_target", 0, proc_fs_cifs, | |
527 | &cifs_smbd_send_credit_target_proc_fops); | |
528 | proc_create("smbd_receive_credit_max", 0, proc_fs_cifs, | |
529 | &cifs_smbd_receive_credit_max_proc_fops); | |
530 | #endif | |
1da177e4 LT |
531 | } |
532 | ||
533 | void | |
534 | cifs_proc_clean(void) | |
535 | { | |
536 | if (proc_fs_cifs == NULL) | |
537 | return; | |
538 | ||
539 | remove_proc_entry("DebugData", proc_fs_cifs); | |
540 | remove_proc_entry("cifsFYI", proc_fs_cifs); | |
541 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
542 | #ifdef CONFIG_CIFS_STATS | |
543 | remove_proc_entry("Stats", proc_fs_cifs); | |
544 | #endif | |
221601c3 | 545 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 546 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 547 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
d8ec913b LL |
548 | #ifdef CONFIG_CIFS_SMB_DIRECT |
549 | remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs); | |
550 | remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs); | |
551 | remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs); | |
552 | remove_proc_entry("smbd_max_receive_size", proc_fs_cifs); | |
553 | remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs); | |
554 | remove_proc_entry("smbd_max_send_size", proc_fs_cifs); | |
555 | remove_proc_entry("smbd_send_credit_target", proc_fs_cifs); | |
556 | remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs); | |
557 | #endif | |
36a5aeb8 | 558 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
559 | } |
560 | ||
f984c7b9 | 561 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 562 | { |
f984c7b9 AD |
563 | seq_printf(m, "%d\n", cifsFYI); |
564 | return 0; | |
565 | } | |
1da177e4 | 566 | |
f984c7b9 AD |
567 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
568 | { | |
569 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 570 | } |
f984c7b9 AD |
571 | |
572 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
573 | size_t count, loff_t *ppos) | |
1da177e4 | 574 | { |
1404297e | 575 | char c[2] = { '\0' }; |
28e2aed2 | 576 | bool bv; |
1da177e4 LT |
577 | int rc; |
578 | ||
1404297e | 579 | rc = get_user(c[0], buffer); |
1da177e4 LT |
580 | if (rc) |
581 | return rc; | |
1404297e | 582 | if (strtobool(c, &bv) == 0) |
28e2aed2 | 583 | cifsFYI = bv; |
1404297e KC |
584 | else if ((c[0] > '1') && (c[0] <= '9')) |
585 | cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */ | |
1da177e4 LT |
586 | |
587 | return count; | |
588 | } | |
589 | ||
f984c7b9 | 590 | static const struct file_operations cifsFYI_proc_fops = { |
f984c7b9 AD |
591 | .open = cifsFYI_proc_open, |
592 | .read = seq_read, | |
593 | .llseek = seq_lseek, | |
594 | .release = single_release, | |
595 | .write = cifsFYI_proc_write, | |
596 | }; | |
1da177e4 | 597 | |
f984c7b9 AD |
598 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
599 | { | |
600 | seq_printf(m, "%d\n", linuxExtEnabled); | |
601 | return 0; | |
602 | } | |
1da177e4 | 603 | |
f984c7b9 AD |
604 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
605 | { | |
606 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 607 | } |
f984c7b9 AD |
608 | |
609 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
610 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 611 | { |
221601c3 SF |
612 | int rc; |
613 | ||
1404297e | 614 | rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled); |
221601c3 SF |
615 | if (rc) |
616 | return rc; | |
28e2aed2 | 617 | |
221601c3 | 618 | return count; |
1da177e4 LT |
619 | } |
620 | ||
f984c7b9 | 621 | static const struct file_operations cifs_linux_ext_proc_fops = { |
f984c7b9 AD |
622 | .open = cifs_linux_ext_proc_open, |
623 | .read = seq_read, | |
624 | .llseek = seq_lseek, | |
625 | .release = single_release, | |
626 | .write = cifs_linux_ext_proc_write, | |
627 | }; | |
1da177e4 | 628 | |
f984c7b9 | 629 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 630 | { |
f984c7b9 AD |
631 | seq_printf(m, "%d\n", lookupCacheEnabled); |
632 | return 0; | |
633 | } | |
1da177e4 | 634 | |
f984c7b9 AD |
635 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
636 | { | |
637 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 638 | } |
f984c7b9 AD |
639 | |
640 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
641 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 642 | { |
1da177e4 LT |
643 | int rc; |
644 | ||
1404297e | 645 | rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled); |
1da177e4 LT |
646 | if (rc) |
647 | return rc; | |
28e2aed2 | 648 | |
1da177e4 LT |
649 | return count; |
650 | } | |
1da177e4 | 651 | |
f984c7b9 | 652 | static const struct file_operations cifs_lookup_cache_proc_fops = { |
f984c7b9 AD |
653 | .open = cifs_lookup_cache_proc_open, |
654 | .read = seq_read, | |
655 | .llseek = seq_lseek, | |
656 | .release = single_release, | |
657 | .write = cifs_lookup_cache_proc_write, | |
658 | }; | |
1da177e4 | 659 | |
f984c7b9 AD |
660 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
661 | { | |
662 | seq_printf(m, "%d\n", traceSMB); | |
663 | return 0; | |
664 | } | |
1da177e4 | 665 | |
f984c7b9 AD |
666 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
667 | { | |
668 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 669 | } |
f984c7b9 AD |
670 | |
671 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
672 | size_t count, loff_t *ppos) | |
1da177e4 | 673 | { |
1da177e4 LT |
674 | int rc; |
675 | ||
1404297e | 676 | rc = kstrtobool_from_user(buffer, count, &traceSMB); |
1da177e4 LT |
677 | if (rc) |
678 | return rc; | |
28e2aed2 | 679 | |
1da177e4 LT |
680 | return count; |
681 | } | |
682 | ||
f984c7b9 | 683 | static const struct file_operations traceSMB_proc_fops = { |
f984c7b9 AD |
684 | .open = traceSMB_proc_open, |
685 | .read = seq_read, | |
686 | .llseek = seq_lseek, | |
687 | .release = single_release, | |
688 | .write = traceSMB_proc_write, | |
689 | }; | |
1da177e4 | 690 | |
f984c7b9 AD |
691 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
692 | { | |
04912d6a | 693 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
694 | return 0; |
695 | } | |
1da177e4 | 696 | |
f984c7b9 AD |
697 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
698 | { | |
699 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 700 | } |
f984c7b9 | 701 | |
52dfb446 JL |
702 | /* |
703 | * Ensure that if someone sets a MUST flag, that we disable all other MAY | |
704 | * flags except for the ones corresponding to the given MUST flag. If there are | |
705 | * multiple MUST flags, then try to prefer more secure ones. | |
706 | */ | |
707 | static void | |
708 | cifs_security_flags_handle_must_flags(unsigned int *flags) | |
709 | { | |
710 | unsigned int signflags = *flags & CIFSSEC_MUST_SIGN; | |
711 | ||
712 | if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
713 | *flags = CIFSSEC_MUST_KRB5; | |
714 | else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
715 | *flags = CIFSSEC_MUST_NTLMSSP; | |
716 | else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) | |
717 | *flags = CIFSSEC_MUST_NTLMV2; | |
718 | else if ((*flags & CIFSSEC_MUST_NTLM) == CIFSSEC_MUST_NTLM) | |
719 | *flags = CIFSSEC_MUST_NTLM; | |
7a1ceba0 NC |
720 | else if (CIFSSEC_MUST_LANMAN && |
721 | (*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN) | |
52dfb446 | 722 | *flags = CIFSSEC_MUST_LANMAN; |
7a1ceba0 NC |
723 | else if (CIFSSEC_MUST_PLNTXT && |
724 | (*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT) | |
52dfb446 JL |
725 | *flags = CIFSSEC_MUST_PLNTXT; |
726 | ||
727 | *flags |= signflags; | |
728 | } | |
729 | ||
f984c7b9 AD |
730 | static ssize_t cifs_security_flags_proc_write(struct file *file, |
731 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 732 | { |
7715dad8 | 733 | int rc; |
bdc4bf6e SF |
734 | unsigned int flags; |
735 | char flags_string[12]; | |
28e2aed2 | 736 | bool bv; |
bdc4bf6e | 737 | |
221601c3 | 738 | if ((count < 1) || (count > 11)) |
3979877e | 739 | return -EINVAL; |
1da177e4 | 740 | |
bdc4bf6e | 741 | memset(flags_string, 0, 12); |
3979877e | 742 | |
221601c3 | 743 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 744 | return -EFAULT; |
3979877e | 745 | |
221601c3 | 746 | if (count < 3) { |
bdc4bf6e | 747 | /* single char or single char followed by null */ |
1404297e | 748 | if (strtobool(flags_string, &bv) == 0) { |
28e2aed2 | 749 | global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF; |
a013689d | 750 | return count; |
1404297e | 751 | } else if (!isdigit(flags_string[0])) { |
7715dad8 JL |
752 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", |
753 | flags_string); | |
a013689d SF |
754 | return -EINVAL; |
755 | } | |
bdc4bf6e | 756 | } |
bdc4bf6e | 757 | |
7715dad8 JL |
758 | /* else we have a number */ |
759 | rc = kstrtouint(flags_string, 0, &flags); | |
760 | if (rc) { | |
761 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", | |
762 | flags_string); | |
763 | return rc; | |
764 | } | |
bdc4bf6e | 765 | |
f96637be | 766 | cifs_dbg(FYI, "sec flags 0x%x\n", flags); |
bdc4bf6e | 767 | |
7715dad8 JL |
768 | if (flags == 0) { |
769 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string); | |
bdc4bf6e SF |
770 | return -EINVAL; |
771 | } | |
1da177e4 | 772 | |
221601c3 | 773 | if (flags & ~CIFSSEC_MASK) { |
7715dad8 | 774 | cifs_dbg(VFS, "Unsupported security flags: 0x%x\n", |
f96637be | 775 | flags & ~CIFSSEC_MASK); |
bdc4bf6e SF |
776 | return -EINVAL; |
777 | } | |
7715dad8 | 778 | |
52dfb446 JL |
779 | cifs_security_flags_handle_must_flags(&flags); |
780 | ||
bdc4bf6e | 781 | /* flags look ok - update the global security flags for cifs module */ |
04912d6a JL |
782 | global_secflags = flags; |
783 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 784 | /* requiring signing implies signing is allowed */ |
04912d6a | 785 | global_secflags |= CIFSSEC_MAY_SIGN; |
f96637be | 786 | cifs_dbg(FYI, "packet signing now required\n"); |
04912d6a | 787 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
f96637be | 788 | cifs_dbg(FYI, "packet signing disabled\n"); |
762e5ab7 SF |
789 | } |
790 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
791 | return count; |
792 | } | |
f984c7b9 AD |
793 | |
794 | static const struct file_operations cifs_security_flags_proc_fops = { | |
f984c7b9 AD |
795 | .open = cifs_security_flags_proc_open, |
796 | .read = seq_read, | |
797 | .llseek = seq_lseek, | |
798 | .release = single_release, | |
799 | .write = cifs_security_flags_proc_write, | |
800 | }; | |
90c81e0b | 801 | #else |
e086fcea | 802 | inline void cifs_proc_init(void) |
90c81e0b SF |
803 | { |
804 | } | |
805 | ||
e086fcea | 806 | inline void cifs_proc_clean(void) |
90c81e0b SF |
807 | { |
808 | } | |
809 | #endif /* PROC_FS */ |