Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * fs/cifs_debug.c | |
4 | * | |
b8643e1b | 5 | * Copyright (C) International Business Machines Corp., 2000,2005 |
1da177e4 LT |
6 | * |
7 | * Modified by Steve French (sfrench@us.ibm.com) | |
1da177e4 LT |
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> | |
7c0f6ba6 | 14 | #include <linux/uaccess.h> |
1da177e4 LT |
15 | #include "cifspdu.h" |
16 | #include "cifsglob.h" | |
17 | #include "cifsproto.h" | |
18 | #include "cifs_debug.h" | |
6c91d362 | 19 | #include "cifsfs.h" |
54be1f6c PA |
20 | #ifdef CONFIG_CIFS_DFS_UPCALL |
21 | #include "dfs_cache.h" | |
22 | #endif | |
d8ec913b LL |
23 | #ifdef CONFIG_CIFS_SMB_DIRECT |
24 | #include "smbdirect.h" | |
25 | #endif | |
1da177e4 LT |
26 | |
27 | void | |
28 | cifs_dump_mem(char *label, void *data, int length) | |
29 | { | |
0b456f04 | 30 | pr_debug("%s: dump of %d bytes of data at 0x%p\n", label, length, data); |
55d83e0d AS |
31 | print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 4, |
32 | data, length, true); | |
1da177e4 LT |
33 | } |
34 | ||
14547f7d | 35 | void cifs_dump_detail(void *buf, struct TCP_Server_Info *server) |
3979877e | 36 | { |
8aa26f3e | 37 | #ifdef CONFIG_CIFS_DEBUG2 |
d4e4854f PS |
38 | struct smb_hdr *smb = (struct smb_hdr *)buf; |
39 | ||
f96637be JP |
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); | |
14547f7d | 43 | cifs_dbg(VFS, "smb buf %p len %u\n", smb, |
71992e62 | 44 | server->ops->calc_smb_size(smb, server)); |
8aa26f3e | 45 | #endif /* CONFIG_CIFS_DEBUG2 */ |
3979877e SF |
46 | } |
47 | ||
ffdd6e4d | 48 | void cifs_dump_mids(struct TCP_Server_Info *server) |
3979877e | 49 | { |
8aa26f3e | 50 | #ifdef CONFIG_CIFS_DEBUG2 |
3979877e | 51 | struct list_head *tmp; |
ffdd6e4d | 52 | struct mid_q_entry *mid_entry; |
3979877e | 53 | |
221601c3 | 54 | if (server == NULL) |
3979877e SF |
55 | return; |
56 | ||
f96637be | 57 | cifs_dbg(VFS, "Dump pending requests:\n"); |
3979877e SF |
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); | |
f96637be JP |
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); | |
3979877e | 67 | #ifdef CONFIG_CIFS_STATS2 |
f96637be JP |
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); | |
3979877e | 73 | #endif /* STATS2 */ |
f96637be JP |
74 | cifs_dbg(VFS, "IsMult: %d IsEnd: %d\n", |
75 | mid_entry->multiRsp, mid_entry->multiEnd); | |
ad8b15f0 | 76 | if (mid_entry->resp_buf) { |
71992e62 | 77 | cifs_dump_detail(mid_entry->resp_buf, server); |
ad8b15f0 SF |
78 | cifs_dump_mem("existing buf: ", |
79 | mid_entry->resp_buf, 62); | |
3979877e SF |
80 | } |
81 | } | |
82 | spin_unlock(&GlobalMid_Lock); | |
3979877e | 83 | #endif /* CONFIG_CIFS_DEBUG2 */ |
8aa26f3e | 84 | } |
3979877e | 85 | |
1da177e4 | 86 | #ifdef CONFIG_PROC_FS |
02cf5905 AA |
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); | |
ab7b10cf SF |
105 | |
106 | seq_printf(m, "Serial Number: 0x%x", tcon->vol_serial_number); | |
107 | ||
ffd1ef1e SF |
108 | if ((tcon->seal) || |
109 | (tcon->ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) || | |
110 | (tcon->share_flags & SHI1005_FLAGS_ENCRYPT_DATA)) | |
ede2e520 | 111 | seq_printf(m, " Encrypted"); |
5c5a41be SF |
112 | if (tcon->nocase) |
113 | seq_printf(m, " nocase"); | |
ede2e520 SF |
114 | if (tcon->unix_ext) |
115 | seq_printf(m, " POSIX Extensions"); | |
02cf5905 AA |
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 | ||
85150929 AA |
124 | static void |
125 | cifs_dump_channel(struct seq_file *m, int i, struct cifs_chan *chan) | |
126 | { | |
127 | struct TCP_Server_Info *server = chan->server; | |
128 | ||
129 | seq_printf(m, "\t\tChannel %d Number of credits: %d Dialect 0x%x " | |
130 | "TCP status: %d Instance: %d Local Users To Server: %d " | |
131 | "SecMode: 0x%x Req On Wire: %d In Send: %d " | |
132 | "In MaxReq Wait: %d\n", | |
133 | i+1, | |
134 | server->credits, | |
135 | server->dialect, | |
136 | server->tcpStatus, | |
137 | server->reconnect_instance, | |
138 | server->srv_count, | |
139 | server->sec_mode, | |
140 | in_flight(server), | |
141 | atomic_read(&server->in_send), | |
142 | atomic_read(&server->num_waiters)); | |
143 | } | |
144 | ||
bc0fe8b2 AA |
145 | static void |
146 | cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface) | |
147 | { | |
148 | struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr; | |
149 | struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr; | |
150 | ||
35a90807 | 151 | seq_printf(m, "\tSpeed: %zu bps\n", iface->speed); |
bc0fe8b2 AA |
152 | seq_puts(m, "\t\tCapabilities: "); |
153 | if (iface->rdma_capable) | |
154 | seq_puts(m, "rdma "); | |
155 | if (iface->rss_capable) | |
156 | seq_puts(m, "rss "); | |
157 | seq_putc(m, '\n'); | |
158 | if (iface->sockaddr.ss_family == AF_INET) | |
159 | seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr); | |
160 | else if (iface->sockaddr.ss_family == AF_INET6) | |
161 | seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr); | |
162 | } | |
163 | ||
dfe33f9a SF |
164 | static int cifs_debug_files_proc_show(struct seq_file *m, void *v) |
165 | { | |
166 | struct list_head *stmp, *tmp, *tmp1, *tmp2; | |
167 | struct TCP_Server_Info *server; | |
168 | struct cifs_ses *ses; | |
169 | struct cifs_tcon *tcon; | |
170 | struct cifsFileInfo *cfile; | |
171 | ||
172 | seq_puts(m, "# Version:1\n"); | |
173 | seq_puts(m, "# Format:\n"); | |
174 | seq_puts(m, "# <tree id> <persistent fid> <flags> <count> <pid> <uid>"); | |
175 | #ifdef CONFIG_CIFS_DEBUG2 | |
176 | seq_printf(m, " <filename> <mid>\n"); | |
177 | #else | |
178 | seq_printf(m, " <filename>\n"); | |
179 | #endif /* CIFS_DEBUG2 */ | |
180 | spin_lock(&cifs_tcp_ses_lock); | |
181 | list_for_each(stmp, &cifs_tcp_ses_list) { | |
182 | server = list_entry(stmp, struct TCP_Server_Info, | |
183 | tcp_ses_list); | |
184 | list_for_each(tmp, &server->smb_ses_list) { | |
185 | ses = list_entry(tmp, struct cifs_ses, smb_ses_list); | |
186 | list_for_each(tmp1, &ses->tcon_list) { | |
187 | tcon = list_entry(tmp1, struct cifs_tcon, tcon_list); | |
188 | spin_lock(&tcon->open_file_lock); | |
189 | list_for_each(tmp2, &tcon->openFileList) { | |
190 | cfile = list_entry(tmp2, struct cifsFileInfo, | |
191 | tlist); | |
192 | seq_printf(m, | |
193 | "0x%x 0x%llx 0x%x %d %d %d %s", | |
194 | tcon->tid, | |
195 | cfile->fid.persistent_fid, | |
196 | cfile->f_flags, | |
197 | cfile->count, | |
198 | cfile->pid, | |
199 | from_kuid(&init_user_ns, cfile->uid), | |
200 | cfile->dentry->d_name.name); | |
201 | #ifdef CONFIG_CIFS_DEBUG2 | |
202 | seq_printf(m, " 0x%llx\n", cfile->fid.mid); | |
203 | #else | |
204 | seq_printf(m, "\n"); | |
205 | #endif /* CIFS_DEBUG2 */ | |
206 | } | |
207 | spin_unlock(&tcon->open_file_lock); | |
208 | } | |
209 | } | |
210 | } | |
211 | spin_unlock(&cifs_tcp_ses_lock); | |
212 | seq_putc(m, '\n'); | |
213 | return 0; | |
214 | } | |
215 | ||
f984c7b9 | 216 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 217 | { |
f1987b44 | 218 | struct list_head *tmp1, *tmp2, *tmp3; |
ffdd6e4d | 219 | struct mid_q_entry *mid_entry; |
14fbf50d | 220 | struct TCP_Server_Info *server; |
96daf2b0 SF |
221 | struct cifs_ses *ses; |
222 | struct cifs_tcon *tcon; | |
f1987b44 | 223 | int i, j; |
1da177e4 | 224 | |
f984c7b9 | 225 | seq_puts(m, |
1da177e4 LT |
226 | "Display Internal CIFS Data Structures for Debugging\n" |
227 | "---------------------------------------------------\n"); | |
f984c7b9 | 228 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 229 | seq_printf(m, "Features:"); |
f579903e | 230 | #ifdef CONFIG_CIFS_DFS_UPCALL |
950132af | 231 | seq_printf(m, " DFS"); |
f579903e SJ |
232 | #endif |
233 | #ifdef CONFIG_CIFS_FSCACHE | |
950132af SF |
234 | seq_printf(m, ",FSCACHE"); |
235 | #endif | |
236 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
237 | seq_printf(m, ",SMB_DIRECT"); | |
238 | #endif | |
239 | #ifdef CONFIG_CIFS_STATS2 | |
240 | seq_printf(m, ",STATS2"); | |
d2586500 | 241 | #else |
950132af SF |
242 | seq_printf(m, ",STATS"); |
243 | #endif | |
244 | #ifdef CONFIG_CIFS_DEBUG2 | |
245 | seq_printf(m, ",DEBUG2"); | |
246 | #elif defined(CONFIG_CIFS_DEBUG) | |
247 | seq_printf(m, ",DEBUG"); | |
248 | #endif | |
249 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY | |
250 | seq_printf(m, ",ALLOW_INSECURE_LEGACY"); | |
f579903e SJ |
251 | #endif |
252 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
950132af | 253 | seq_printf(m, ",WEAK_PW_HASH"); |
f579903e SJ |
254 | #endif |
255 | #ifdef CONFIG_CIFS_POSIX | |
950132af | 256 | seq_printf(m, ",CIFS_POSIX"); |
f579903e SJ |
257 | #endif |
258 | #ifdef CONFIG_CIFS_UPCALL | |
950132af | 259 | seq_printf(m, ",UPCALL(SPNEGO)"); |
f579903e SJ |
260 | #endif |
261 | #ifdef CONFIG_CIFS_XATTR | |
950132af | 262 | seq_printf(m, ",XATTR"); |
ca40b714 | 263 | #endif |
950132af | 264 | seq_printf(m, ",ACL"); |
f579903e | 265 | seq_putc(m, '\n'); |
a5f1a81f | 266 | seq_printf(m, "CIFSMaxBufSize: %d\n", CIFSMaxBufSize); |
f984c7b9 AD |
267 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
268 | seq_printf(m, "Servers:"); | |
1da177e4 LT |
269 | |
270 | i = 0; | |
3f9bcca7 | 271 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
272 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
273 | server = list_entry(tmp1, struct TCP_Server_Info, | |
14fbf50d | 274 | tcp_ses_list); |
08a3b969 LL |
275 | |
276 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
277 | if (!server->rdma) | |
278 | goto skip_rdma; | |
279 | ||
14cc639c LL |
280 | if (!server->smbd_conn) { |
281 | seq_printf(m, "\nSMBDirect transport not available"); | |
282 | goto skip_rdma; | |
283 | } | |
284 | ||
08a3b969 LL |
285 | seq_printf(m, "\nSMBDirect (in hex) protocol version: %x " |
286 | "transport status: %x", | |
287 | server->smbd_conn->protocol, | |
288 | server->smbd_conn->transport_status); | |
289 | seq_printf(m, "\nConn receive_credit_max: %x " | |
290 | "send_credit_target: %x max_send_size: %x", | |
291 | server->smbd_conn->receive_credit_max, | |
292 | server->smbd_conn->send_credit_target, | |
293 | server->smbd_conn->max_send_size); | |
294 | seq_printf(m, "\nConn max_fragmented_recv_size: %x " | |
295 | "max_fragmented_send_size: %x max_receive_size:%x", | |
296 | server->smbd_conn->max_fragmented_recv_size, | |
297 | server->smbd_conn->max_fragmented_send_size, | |
298 | server->smbd_conn->max_receive_size); | |
299 | seq_printf(m, "\nConn keep_alive_interval: %x " | |
300 | "max_readwrite_size: %x rdma_readwrite_threshold: %x", | |
301 | server->smbd_conn->keep_alive_interval, | |
302 | server->smbd_conn->max_readwrite_size, | |
303 | server->smbd_conn->rdma_readwrite_threshold); | |
304 | seq_printf(m, "\nDebug count_get_receive_buffer: %x " | |
305 | "count_put_receive_buffer: %x count_send_empty: %x", | |
306 | server->smbd_conn->count_get_receive_buffer, | |
307 | server->smbd_conn->count_put_receive_buffer, | |
308 | server->smbd_conn->count_send_empty); | |
309 | seq_printf(m, "\nRead Queue count_reassembly_queue: %x " | |
310 | "count_enqueue_reassembly_queue: %x " | |
311 | "count_dequeue_reassembly_queue: %x " | |
312 | "fragment_reassembly_remaining: %x " | |
313 | "reassembly_data_length: %x " | |
314 | "reassembly_queue_length: %x", | |
315 | server->smbd_conn->count_reassembly_queue, | |
316 | server->smbd_conn->count_enqueue_reassembly_queue, | |
317 | server->smbd_conn->count_dequeue_reassembly_queue, | |
318 | server->smbd_conn->fragment_reassembly_remaining, | |
319 | server->smbd_conn->reassembly_data_length, | |
320 | server->smbd_conn->reassembly_queue_length); | |
321 | seq_printf(m, "\nCurrent Credits send_credits: %x " | |
322 | "receive_credits: %x receive_credit_target: %x", | |
323 | atomic_read(&server->smbd_conn->send_credits), | |
324 | atomic_read(&server->smbd_conn->receive_credits), | |
325 | server->smbd_conn->receive_credit_target); | |
072a14ec LL |
326 | seq_printf(m, "\nPending send_pending: %x ", |
327 | atomic_read(&server->smbd_conn->send_pending)); | |
08a3b969 LL |
328 | seq_printf(m, "\nReceive buffers count_receive_queue: %x " |
329 | "count_empty_packet_queue: %x", | |
330 | server->smbd_conn->count_receive_queue, | |
331 | server->smbd_conn->count_empty_packet_queue); | |
332 | seq_printf(m, "\nMR responder_resources: %x " | |
333 | "max_frmr_depth: %x mr_type: %x", | |
334 | server->smbd_conn->responder_resources, | |
335 | server->smbd_conn->max_frmr_depth, | |
336 | server->smbd_conn->mr_type); | |
337 | seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x", | |
338 | atomic_read(&server->smbd_conn->mr_ready_count), | |
339 | atomic_read(&server->smbd_conn->mr_used_count)); | |
340 | skip_rdma: | |
341 | #endif | |
ede2e520 SF |
342 | seq_printf(m, "\nNumber of credits: %d Dialect 0x%x", |
343 | server->credits, server->dialect); | |
26ea888f SF |
344 | if (server->compress_algorithm == SMB3_COMPRESS_LZNT1) |
345 | seq_printf(m, " COMPRESS_LZNT1"); | |
346 | else if (server->compress_algorithm == SMB3_COMPRESS_LZ77) | |
347 | seq_printf(m, " COMPRESS_LZ77"); | |
348 | else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF) | |
349 | seq_printf(m, " COMPRESS_LZ77_HUFF"); | |
ede2e520 SF |
350 | if (server->sign) |
351 | seq_printf(m, " signed"); | |
fcef0db6 SF |
352 | if (server->posix_ext_supported) |
353 | seq_printf(m, " posix"); | |
0fdfef9a | 354 | |
1da177e4 | 355 | i++; |
14fbf50d | 356 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 357 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d JL |
358 | smb_ses_list); |
359 | if ((ses->serverDomain == NULL) || | |
360 | (ses->serverOS == NULL) || | |
361 | (ses->serverNOS == NULL)) { | |
9e1a37da | 362 | seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d ", |
1fa089ec SF |
363 | i, ses->serverName, ses->ses_count, |
364 | ses->capabilities, ses->status); | |
365 | if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) | |
366 | seq_printf(m, "Guest\t"); | |
367 | else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) | |
368 | seq_printf(m, "Anonymous\t"); | |
14fbf50d JL |
369 | } else { |
370 | seq_printf(m, | |
f1987b44 JL |
371 | "\n%d) Name: %s Domain: %s Uses: %d OS:" |
372 | " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
9e1a37da | 373 | " session status: %d ", |
b8643e1b | 374 | i, ses->serverName, ses->serverDomain, |
14fbf50d | 375 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 376 | ses->capabilities, ses->status); |
14fbf50d | 377 | } |
8339dd32 LL |
378 | if (server->rdma) |
379 | seq_printf(m, "RDMA\n\t"); | |
9e1a37da | 380 | seq_printf(m, "TCP status: %d Instance: %d\n\tLocal Users To " |
14fbf50d | 381 | "Server: %d SecMode: 0x%x Req On Wire: %d", |
9e1a37da SF |
382 | server->tcpStatus, |
383 | server->reconnect_instance, | |
384 | server->srv_count, | |
fc40f9cf | 385 | server->sec_mode, in_flight(server)); |
131afd0b | 386 | |
f984c7b9 | 387 | seq_printf(m, " In Send: %d In MaxReq Wait: %d", |
789e6661 | 388 | atomic_read(&server->in_send), |
14fbf50d | 389 | atomic_read(&server->num_waiters)); |
1ae9a5a5 | 390 | |
b63a9de0 SF |
391 | /* dump session id helpful for use with network trace */ |
392 | seq_printf(m, " SessionId: 0x%llx", ses->Suid); | |
ffd1ef1e SF |
393 | if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) |
394 | seq_puts(m, " encrypted"); | |
395 | if (ses->sign) | |
396 | seq_puts(m, " signed"); | |
131afd0b | 397 | |
85150929 AA |
398 | if (ses->chan_count > 1) { |
399 | seq_printf(m, "\n\n\tExtra Channels: %zu\n", | |
400 | ses->chan_count-1); | |
401 | for (j = 1; j < ses->chan_count; j++) | |
402 | cifs_dump_channel(m, j, &ses->chans[j]); | |
403 | } | |
404 | ||
f1987b44 JL |
405 | seq_puts(m, "\n\tShares:"); |
406 | j = 0; | |
02cf5905 AA |
407 | |
408 | seq_printf(m, "\n\t%d) IPC: ", j); | |
409 | if (ses->tcon_ipc) | |
410 | cifs_debug_tcon(m, ses->tcon_ipc); | |
411 | else | |
412 | seq_puts(m, "none\n"); | |
413 | ||
f1987b44 | 414 | list_for_each(tmp3, &ses->tcon_list) { |
96daf2b0 | 415 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
416 | tcon_list); |
417 | ++j; | |
02cf5905 AA |
418 | seq_printf(m, "\n\t%d) ", j); |
419 | cifs_debug_tcon(m, tcon); | |
f1987b44 JL |
420 | } |
421 | ||
422 | seq_puts(m, "\n\tMIDs:\n"); | |
1da177e4 LT |
423 | |
424 | spin_lock(&GlobalMid_Lock); | |
14fbf50d | 425 | list_for_each(tmp3, &server->pending_mid_q) { |
f1987b44 | 426 | mid_entry = list_entry(tmp3, struct mid_q_entry, |
1da177e4 | 427 | qhead); |
f1987b44 | 428 | seq_printf(m, "\tState: %d com: %d pid:" |
7c9421e1 PS |
429 | " %d cbdata: %p mid %llu\n", |
430 | mid_entry->mid_state, | |
431 | le16_to_cpu(mid_entry->command), | |
432 | mid_entry->pid, | |
433 | mid_entry->callback_data, | |
434 | mid_entry->mid); | |
1da177e4 | 435 | } |
221601c3 | 436 | spin_unlock(&GlobalMid_Lock); |
bc0fe8b2 AA |
437 | |
438 | spin_lock(&ses->iface_lock); | |
115d5d28 SF |
439 | if (ses->iface_count) |
440 | seq_printf(m, "\n\tServer interfaces: %zu\n", | |
441 | ses->iface_count); | |
bc0fe8b2 | 442 | for (j = 0; j < ses->iface_count; j++) { |
85150929 AA |
443 | struct cifs_server_iface *iface; |
444 | ||
445 | iface = &ses->iface_list[j]; | |
35a90807 | 446 | seq_printf(m, "\t%d)", j); |
85150929 AA |
447 | cifs_dump_iface(m, iface); |
448 | if (is_ses_using_iface(ses, iface)) | |
449 | seq_puts(m, "\t\t[CONNECTED]\n"); | |
bc0fe8b2 AA |
450 | } |
451 | spin_unlock(&ses->iface_lock); | |
1da177e4 | 452 | } |
1da177e4 | 453 | } |
3f9bcca7 | 454 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 455 | seq_putc(m, '\n'); |
1da177e4 | 456 | |
1da177e4 | 457 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
458 | return 0; |
459 | } | |
1da177e4 | 460 | |
f984c7b9 AD |
461 | static ssize_t cifs_stats_proc_write(struct file *file, |
462 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 463 | { |
28e2aed2 | 464 | bool bv; |
221601c3 | 465 | int rc; |
f1987b44 JL |
466 | struct list_head *tmp1, *tmp2, *tmp3; |
467 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
468 | struct cifs_ses *ses; |
469 | struct cifs_tcon *tcon; | |
1047abc1 | 470 | |
1404297e KC |
471 | rc = kstrtobool_from_user(buffer, count, &bv); |
472 | if (rc == 0) { | |
4498eed5 | 473 | #ifdef CONFIG_CIFS_STATS2 |
468d6779 SF |
474 | int i; |
475 | ||
4498eed5 SF |
476 | atomic_set(&totBufAllocCount, 0); |
477 | atomic_set(&totSmBufAllocCount, 0); | |
478 | #endif /* CONFIG_CIFS_STATS2 */ | |
2c887635 SF |
479 | atomic_set(&tcpSesReconnectCount, 0); |
480 | atomic_set(&tconInfoReconnectCount, 0); | |
481 | ||
c281bc0c SF |
482 | spin_lock(&GlobalMid_Lock); |
483 | GlobalMaxActiveXid = 0; | |
484 | GlobalCurrentXid = 0; | |
485 | spin_unlock(&GlobalMid_Lock); | |
3f9bcca7 | 486 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
487 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
488 | server = list_entry(tmp1, struct TCP_Server_Info, | |
489 | tcp_ses_list); | |
1b63f184 | 490 | server->max_in_flight = 0; |
468d6779 | 491 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
492 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { |
493 | atomic_set(&server->num_cmds[i], 0); | |
468d6779 | 494 | atomic_set(&server->smb2slowcmd[i], 0); |
433b8dd7 SF |
495 | server->time_per_cmd[i] = 0; |
496 | server->slowest_cmd[i] = 0; | |
497 | server->fastest_cmd[0] = 0; | |
498 | } | |
468d6779 | 499 | #endif /* CONFIG_CIFS_STATS2 */ |
c2b3382c | 500 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 501 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 502 | smb_ses_list); |
f1987b44 JL |
503 | list_for_each(tmp3, &ses->tcon_list) { |
504 | tcon = list_entry(tmp3, | |
96daf2b0 | 505 | struct cifs_tcon, |
f1987b44 JL |
506 | tcon_list); |
507 | atomic_set(&tcon->num_smbs_sent, 0); | |
c281bc0c SF |
508 | spin_lock(&tcon->stat_lock); |
509 | tcon->bytes_read = 0; | |
510 | tcon->bytes_written = 0; | |
511 | spin_unlock(&tcon->stat_lock); | |
44c58186 PS |
512 | if (server->ops->clear_stats) |
513 | server->ops->clear_stats(tcon); | |
f1987b44 JL |
514 | } |
515 | } | |
1047abc1 | 516 | } |
3f9bcca7 | 517 | spin_unlock(&cifs_tcp_ses_lock); |
1404297e KC |
518 | } else { |
519 | return rc; | |
1047abc1 SF |
520 | } |
521 | ||
221601c3 | 522 | return count; |
1047abc1 SF |
523 | } |
524 | ||
f984c7b9 | 525 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 526 | { |
f984c7b9 | 527 | int i; |
468d6779 SF |
528 | #ifdef CONFIG_CIFS_STATS2 |
529 | int j; | |
530 | #endif /* STATS2 */ | |
f1987b44 JL |
531 | struct list_head *tmp1, *tmp2, *tmp3; |
532 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
533 | struct cifs_ses *ses; |
534 | struct cifs_tcon *tcon; | |
1da177e4 | 535 | |
468d6779 | 536 | seq_printf(m, "Resources in use\nCIFS Session: %d\n", |
1da177e4 | 537 | sesInfoAllocCount.counter); |
f984c7b9 | 538 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 539 | tconInfoAllocCount.counter); |
f984c7b9 | 540 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
541 | bufAllocCount.counter, |
542 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 543 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 544 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 545 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 546 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 547 | atomic_read(&totBufAllocCount), |
221601c3 | 548 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
549 | #endif /* CONFIG_CIFS_STATS2 */ |
550 | ||
8097531a | 551 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 552 | seq_printf(m, |
1da177e4 | 553 | "\n%d session %d share reconnects\n", |
221601c3 | 554 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 555 | |
f984c7b9 | 556 | seq_printf(m, |
1da177e4 | 557 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 558 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
559 | |
560 | i = 0; | |
3f9bcca7 | 561 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
562 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
563 | server = list_entry(tmp1, struct TCP_Server_Info, | |
564 | tcp_ses_list); | |
1b63f184 | 565 | seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight); |
468d6779 | 566 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
567 | seq_puts(m, "\nTotal time spent processing by command. Time "); |
568 | seq_printf(m, "units are jiffies (%d per second)\n", HZ); | |
569 | seq_puts(m, " SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n"); | |
570 | seq_puts(m, " --------\t------\t----------\t-------\t-------\n"); | |
571 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) | |
572 | seq_printf(m, " %d\t\t%d\t%llu\t\t%u\t%u\n", j, | |
573 | atomic_read(&server->num_cmds[j]), | |
574 | server->time_per_cmd[j], | |
575 | server->fastest_cmd[j], | |
576 | server->slowest_cmd[j]); | |
468d6779 SF |
577 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) |
578 | if (atomic_read(&server->smb2slowcmd[j])) | |
433b8dd7 | 579 | seq_printf(m, " %d slow responses from %s for command %d\n", |
468d6779 SF |
580 | atomic_read(&server->smb2slowcmd[j]), |
581 | server->hostname, j); | |
582 | #endif /* STATS2 */ | |
f1987b44 | 583 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 584 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
585 | smb_ses_list); |
586 | list_for_each(tmp3, &ses->tcon_list) { | |
587 | tcon = list_entry(tmp3, | |
96daf2b0 | 588 | struct cifs_tcon, |
f1987b44 JL |
589 | tcon_list); |
590 | i++; | |
591 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
592 | if (tcon->need_reconnect) | |
593 | seq_puts(m, "\tDISCONNECTED "); | |
44c58186 PS |
594 | seq_printf(m, "\nSMBs: %d", |
595 | atomic_read(&tcon->num_smbs_sent)); | |
596 | if (server->ops->print_stats) | |
597 | server->ops->print_stats(m, tcon); | |
f1987b44 JL |
598 | } |
599 | } | |
1da177e4 | 600 | } |
3f9bcca7 | 601 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 602 | |
f984c7b9 AD |
603 | seq_putc(m, '\n'); |
604 | return 0; | |
605 | } | |
221601c3 | 606 | |
f984c7b9 AD |
607 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
608 | { | |
609 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 610 | } |
f984c7b9 | 611 | |
97a32539 AD |
612 | static const struct proc_ops cifs_stats_proc_ops = { |
613 | .proc_open = cifs_stats_proc_open, | |
614 | .proc_read = seq_read, | |
615 | .proc_lseek = seq_lseek, | |
616 | .proc_release = single_release, | |
617 | .proc_write = cifs_stats_proc_write, | |
f984c7b9 | 618 | }; |
1da177e4 | 619 | |
d8ec913b LL |
620 | #ifdef CONFIG_CIFS_SMB_DIRECT |
621 | #define PROC_FILE_DEFINE(name) \ | |
622 | static ssize_t name##_write(struct file *file, const char __user *buffer, \ | |
623 | size_t count, loff_t *ppos) \ | |
624 | { \ | |
625 | int rc; \ | |
626 | rc = kstrtoint_from_user(buffer, count, 10, & name); \ | |
627 | if (rc) \ | |
628 | return rc; \ | |
629 | return count; \ | |
630 | } \ | |
631 | static int name##_proc_show(struct seq_file *m, void *v) \ | |
632 | { \ | |
633 | seq_printf(m, "%d\n", name ); \ | |
634 | return 0; \ | |
635 | } \ | |
636 | static int name##_open(struct inode *inode, struct file *file) \ | |
637 | { \ | |
638 | return single_open(file, name##_proc_show, NULL); \ | |
639 | } \ | |
640 | \ | |
97a32539 AD |
641 | static const struct proc_ops cifs_##name##_proc_fops = { \ |
642 | .proc_open = name##_open, \ | |
643 | .proc_read = seq_read, \ | |
644 | .proc_lseek = seq_lseek, \ | |
645 | .proc_release = single_release, \ | |
646 | .proc_write = name##_write, \ | |
d8ec913b LL |
647 | } |
648 | ||
d8ec913b LL |
649 | PROC_FILE_DEFINE(rdma_readwrite_threshold); |
650 | PROC_FILE_DEFINE(smbd_max_frmr_depth); | |
651 | PROC_FILE_DEFINE(smbd_keep_alive_interval); | |
652 | PROC_FILE_DEFINE(smbd_max_receive_size); | |
653 | PROC_FILE_DEFINE(smbd_max_fragmented_recv_size); | |
654 | PROC_FILE_DEFINE(smbd_max_send_size); | |
655 | PROC_FILE_DEFINE(smbd_send_credit_target); | |
656 | PROC_FILE_DEFINE(smbd_receive_credit_max); | |
657 | #endif | |
658 | ||
1da177e4 | 659 | static struct proc_dir_entry *proc_fs_cifs; |
97a32539 AD |
660 | static const struct proc_ops cifsFYI_proc_ops; |
661 | static const struct proc_ops cifs_lookup_cache_proc_ops; | |
662 | static const struct proc_ops traceSMB_proc_ops; | |
663 | static const struct proc_ops cifs_security_flags_proc_ops; | |
664 | static const struct proc_ops cifs_linux_ext_proc_ops; | |
1da177e4 LT |
665 | |
666 | void | |
667 | cifs_proc_init(void) | |
668 | { | |
36a5aeb8 | 669 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
670 | if (proc_fs_cifs == NULL) |
671 | return; | |
672 | ||
3f3942ac CH |
673 | proc_create_single("DebugData", 0, proc_fs_cifs, |
674 | cifs_debug_data_proc_show); | |
1da177e4 | 675 | |
dfe33f9a SF |
676 | proc_create_single("open_files", 0400, proc_fs_cifs, |
677 | cifs_debug_files_proc_show); | |
678 | ||
97a32539 AD |
679 | proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_ops); |
680 | proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_ops); | |
681 | proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_ops); | |
6539e7f3 | 682 | proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs, |
97a32539 | 683 | &cifs_linux_ext_proc_ops); |
6539e7f3 | 684 | proc_create("SecurityFlags", 0644, proc_fs_cifs, |
97a32539 | 685 | &cifs_security_flags_proc_ops); |
6539e7f3 | 686 | proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, |
97a32539 | 687 | &cifs_lookup_cache_proc_ops); |
54be1f6c PA |
688 | |
689 | #ifdef CONFIG_CIFS_DFS_UPCALL | |
97a32539 | 690 | proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_ops); |
54be1f6c PA |
691 | #endif |
692 | ||
d8ec913b | 693 | #ifdef CONFIG_CIFS_SMB_DIRECT |
6539e7f3 | 694 | proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs, |
d8ec913b | 695 | &cifs_rdma_readwrite_threshold_proc_fops); |
6539e7f3 | 696 | proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs, |
d8ec913b | 697 | &cifs_smbd_max_frmr_depth_proc_fops); |
6539e7f3 | 698 | proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs, |
d8ec913b | 699 | &cifs_smbd_keep_alive_interval_proc_fops); |
6539e7f3 | 700 | proc_create("smbd_max_receive_size", 0644, proc_fs_cifs, |
d8ec913b | 701 | &cifs_smbd_max_receive_size_proc_fops); |
6539e7f3 | 702 | proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs, |
d8ec913b | 703 | &cifs_smbd_max_fragmented_recv_size_proc_fops); |
6539e7f3 | 704 | proc_create("smbd_max_send_size", 0644, proc_fs_cifs, |
d8ec913b | 705 | &cifs_smbd_max_send_size_proc_fops); |
6539e7f3 | 706 | proc_create("smbd_send_credit_target", 0644, proc_fs_cifs, |
d8ec913b | 707 | &cifs_smbd_send_credit_target_proc_fops); |
6539e7f3 | 708 | proc_create("smbd_receive_credit_max", 0644, proc_fs_cifs, |
d8ec913b LL |
709 | &cifs_smbd_receive_credit_max_proc_fops); |
710 | #endif | |
1da177e4 LT |
711 | } |
712 | ||
713 | void | |
714 | cifs_proc_clean(void) | |
715 | { | |
716 | if (proc_fs_cifs == NULL) | |
717 | return; | |
718 | ||
719 | remove_proc_entry("DebugData", proc_fs_cifs); | |
dfe33f9a | 720 | remove_proc_entry("open_files", proc_fs_cifs); |
1da177e4 LT |
721 | remove_proc_entry("cifsFYI", proc_fs_cifs); |
722 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
1da177e4 | 723 | remove_proc_entry("Stats", proc_fs_cifs); |
221601c3 | 724 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 725 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 726 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
54be1f6c PA |
727 | |
728 | #ifdef CONFIG_CIFS_DFS_UPCALL | |
729 | remove_proc_entry("dfscache", proc_fs_cifs); | |
730 | #endif | |
d8ec913b LL |
731 | #ifdef CONFIG_CIFS_SMB_DIRECT |
732 | remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs); | |
733 | remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs); | |
734 | remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs); | |
735 | remove_proc_entry("smbd_max_receive_size", proc_fs_cifs); | |
736 | remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs); | |
737 | remove_proc_entry("smbd_max_send_size", proc_fs_cifs); | |
738 | remove_proc_entry("smbd_send_credit_target", proc_fs_cifs); | |
739 | remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs); | |
740 | #endif | |
36a5aeb8 | 741 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
742 | } |
743 | ||
f984c7b9 | 744 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 745 | { |
f984c7b9 AD |
746 | seq_printf(m, "%d\n", cifsFYI); |
747 | return 0; | |
748 | } | |
1da177e4 | 749 | |
f984c7b9 AD |
750 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
751 | { | |
752 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 753 | } |
f984c7b9 AD |
754 | |
755 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
756 | size_t count, loff_t *ppos) | |
1da177e4 | 757 | { |
1404297e | 758 | char c[2] = { '\0' }; |
28e2aed2 | 759 | bool bv; |
1da177e4 LT |
760 | int rc; |
761 | ||
1404297e | 762 | rc = get_user(c[0], buffer); |
1da177e4 LT |
763 | if (rc) |
764 | return rc; | |
1404297e | 765 | if (strtobool(c, &bv) == 0) |
28e2aed2 | 766 | cifsFYI = bv; |
1404297e KC |
767 | else if ((c[0] > '1') && (c[0] <= '9')) |
768 | cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */ | |
25ad1cbd RS |
769 | else |
770 | return -EINVAL; | |
1da177e4 LT |
771 | |
772 | return count; | |
773 | } | |
774 | ||
97a32539 AD |
775 | static const struct proc_ops cifsFYI_proc_ops = { |
776 | .proc_open = cifsFYI_proc_open, | |
777 | .proc_read = seq_read, | |
778 | .proc_lseek = seq_lseek, | |
779 | .proc_release = single_release, | |
780 | .proc_write = cifsFYI_proc_write, | |
f984c7b9 | 781 | }; |
1da177e4 | 782 | |
f984c7b9 AD |
783 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
784 | { | |
785 | seq_printf(m, "%d\n", linuxExtEnabled); | |
786 | return 0; | |
787 | } | |
1da177e4 | 788 | |
f984c7b9 AD |
789 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
790 | { | |
791 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 792 | } |
f984c7b9 AD |
793 | |
794 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
795 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 796 | { |
221601c3 SF |
797 | int rc; |
798 | ||
1404297e | 799 | rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled); |
221601c3 SF |
800 | if (rc) |
801 | return rc; | |
28e2aed2 | 802 | |
221601c3 | 803 | return count; |
1da177e4 LT |
804 | } |
805 | ||
97a32539 AD |
806 | static const struct proc_ops cifs_linux_ext_proc_ops = { |
807 | .proc_open = cifs_linux_ext_proc_open, | |
808 | .proc_read = seq_read, | |
809 | .proc_lseek = seq_lseek, | |
810 | .proc_release = single_release, | |
811 | .proc_write = cifs_linux_ext_proc_write, | |
f984c7b9 | 812 | }; |
1da177e4 | 813 | |
f984c7b9 | 814 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 815 | { |
f984c7b9 AD |
816 | seq_printf(m, "%d\n", lookupCacheEnabled); |
817 | return 0; | |
818 | } | |
1da177e4 | 819 | |
f984c7b9 AD |
820 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
821 | { | |
822 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 823 | } |
f984c7b9 AD |
824 | |
825 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
826 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 827 | { |
1da177e4 LT |
828 | int rc; |
829 | ||
1404297e | 830 | rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled); |
1da177e4 LT |
831 | if (rc) |
832 | return rc; | |
28e2aed2 | 833 | |
1da177e4 LT |
834 | return count; |
835 | } | |
1da177e4 | 836 | |
97a32539 AD |
837 | static const struct proc_ops cifs_lookup_cache_proc_ops = { |
838 | .proc_open = cifs_lookup_cache_proc_open, | |
839 | .proc_read = seq_read, | |
840 | .proc_lseek = seq_lseek, | |
841 | .proc_release = single_release, | |
842 | .proc_write = cifs_lookup_cache_proc_write, | |
f984c7b9 | 843 | }; |
1da177e4 | 844 | |
f984c7b9 AD |
845 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
846 | { | |
847 | seq_printf(m, "%d\n", traceSMB); | |
848 | return 0; | |
849 | } | |
1da177e4 | 850 | |
f984c7b9 AD |
851 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
852 | { | |
853 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 854 | } |
f984c7b9 AD |
855 | |
856 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
857 | size_t count, loff_t *ppos) | |
1da177e4 | 858 | { |
1da177e4 LT |
859 | int rc; |
860 | ||
1404297e | 861 | rc = kstrtobool_from_user(buffer, count, &traceSMB); |
1da177e4 LT |
862 | if (rc) |
863 | return rc; | |
28e2aed2 | 864 | |
1da177e4 LT |
865 | return count; |
866 | } | |
867 | ||
97a32539 AD |
868 | static const struct proc_ops traceSMB_proc_ops = { |
869 | .proc_open = traceSMB_proc_open, | |
870 | .proc_read = seq_read, | |
871 | .proc_lseek = seq_lseek, | |
872 | .proc_release = single_release, | |
873 | .proc_write = traceSMB_proc_write, | |
f984c7b9 | 874 | }; |
1da177e4 | 875 | |
f984c7b9 AD |
876 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
877 | { | |
04912d6a | 878 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
879 | return 0; |
880 | } | |
1da177e4 | 881 | |
f984c7b9 AD |
882 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
883 | { | |
884 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 885 | } |
f984c7b9 | 886 | |
52dfb446 JL |
887 | /* |
888 | * Ensure that if someone sets a MUST flag, that we disable all other MAY | |
889 | * flags except for the ones corresponding to the given MUST flag. If there are | |
890 | * multiple MUST flags, then try to prefer more secure ones. | |
891 | */ | |
892 | static void | |
893 | cifs_security_flags_handle_must_flags(unsigned int *flags) | |
894 | { | |
895 | unsigned int signflags = *flags & CIFSSEC_MUST_SIGN; | |
896 | ||
897 | if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
898 | *flags = CIFSSEC_MUST_KRB5; | |
899 | else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
900 | *flags = CIFSSEC_MUST_NTLMSSP; | |
901 | else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) | |
902 | *flags = CIFSSEC_MUST_NTLMV2; | |
903 | else if ((*flags & CIFSSEC_MUST_NTLM) == CIFSSEC_MUST_NTLM) | |
904 | *flags = CIFSSEC_MUST_NTLM; | |
7a1ceba0 NC |
905 | else if (CIFSSEC_MUST_LANMAN && |
906 | (*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN) | |
52dfb446 | 907 | *flags = CIFSSEC_MUST_LANMAN; |
7a1ceba0 NC |
908 | else if (CIFSSEC_MUST_PLNTXT && |
909 | (*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT) | |
52dfb446 JL |
910 | *flags = CIFSSEC_MUST_PLNTXT; |
911 | ||
912 | *flags |= signflags; | |
913 | } | |
914 | ||
f984c7b9 AD |
915 | static ssize_t cifs_security_flags_proc_write(struct file *file, |
916 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 917 | { |
7715dad8 | 918 | int rc; |
bdc4bf6e SF |
919 | unsigned int flags; |
920 | char flags_string[12]; | |
28e2aed2 | 921 | bool bv; |
bdc4bf6e | 922 | |
221601c3 | 923 | if ((count < 1) || (count > 11)) |
3979877e | 924 | return -EINVAL; |
1da177e4 | 925 | |
bdc4bf6e | 926 | memset(flags_string, 0, 12); |
3979877e | 927 | |
221601c3 | 928 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 929 | return -EFAULT; |
3979877e | 930 | |
221601c3 | 931 | if (count < 3) { |
bdc4bf6e | 932 | /* single char or single char followed by null */ |
1404297e | 933 | if (strtobool(flags_string, &bv) == 0) { |
28e2aed2 | 934 | global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF; |
a013689d | 935 | return count; |
1404297e | 936 | } else if (!isdigit(flags_string[0])) { |
7715dad8 JL |
937 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", |
938 | flags_string); | |
a013689d SF |
939 | return -EINVAL; |
940 | } | |
bdc4bf6e | 941 | } |
bdc4bf6e | 942 | |
7715dad8 JL |
943 | /* else we have a number */ |
944 | rc = kstrtouint(flags_string, 0, &flags); | |
945 | if (rc) { | |
946 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", | |
947 | flags_string); | |
948 | return rc; | |
949 | } | |
bdc4bf6e | 950 | |
f96637be | 951 | cifs_dbg(FYI, "sec flags 0x%x\n", flags); |
bdc4bf6e | 952 | |
7715dad8 JL |
953 | if (flags == 0) { |
954 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string); | |
bdc4bf6e SF |
955 | return -EINVAL; |
956 | } | |
1da177e4 | 957 | |
221601c3 | 958 | if (flags & ~CIFSSEC_MASK) { |
7715dad8 | 959 | cifs_dbg(VFS, "Unsupported security flags: 0x%x\n", |
f96637be | 960 | flags & ~CIFSSEC_MASK); |
bdc4bf6e SF |
961 | return -EINVAL; |
962 | } | |
7715dad8 | 963 | |
52dfb446 JL |
964 | cifs_security_flags_handle_must_flags(&flags); |
965 | ||
bdc4bf6e | 966 | /* flags look ok - update the global security flags for cifs module */ |
04912d6a JL |
967 | global_secflags = flags; |
968 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 969 | /* requiring signing implies signing is allowed */ |
04912d6a | 970 | global_secflags |= CIFSSEC_MAY_SIGN; |
f96637be | 971 | cifs_dbg(FYI, "packet signing now required\n"); |
04912d6a | 972 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
f96637be | 973 | cifs_dbg(FYI, "packet signing disabled\n"); |
762e5ab7 SF |
974 | } |
975 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
976 | return count; |
977 | } | |
f984c7b9 | 978 | |
97a32539 AD |
979 | static const struct proc_ops cifs_security_flags_proc_ops = { |
980 | .proc_open = cifs_security_flags_proc_open, | |
981 | .proc_read = seq_read, | |
982 | .proc_lseek = seq_lseek, | |
983 | .proc_release = single_release, | |
984 | .proc_write = cifs_security_flags_proc_write, | |
f984c7b9 | 985 | }; |
90c81e0b | 986 | #else |
e086fcea | 987 | inline void cifs_proc_init(void) |
90c81e0b SF |
988 | { |
989 | } | |
990 | ||
e086fcea | 991 | inline void cifs_proc_clean(void) |
90c81e0b SF |
992 | { |
993 | } | |
994 | #endif /* PROC_FS */ |