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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 | ||
14547f7d | 45 | void cifs_dump_detail(void *buf, struct TCP_Server_Info *server) |
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); | |
14547f7d | 53 | cifs_dbg(VFS, "smb buf %p len %u\n", smb, |
71992e62 | 54 | server->ops->calc_smb_size(smb, server)); |
8aa26f3e | 55 | #endif /* CONFIG_CIFS_DEBUG2 */ |
3979877e SF |
56 | } |
57 | ||
ffdd6e4d | 58 | void cifs_dump_mids(struct TCP_Server_Info *server) |
3979877e | 59 | { |
8aa26f3e | 60 | #ifdef CONFIG_CIFS_DEBUG2 |
3979877e | 61 | struct list_head *tmp; |
ffdd6e4d | 62 | struct mid_q_entry *mid_entry; |
3979877e | 63 | |
221601c3 | 64 | if (server == NULL) |
3979877e SF |
65 | return; |
66 | ||
f96637be | 67 | cifs_dbg(VFS, "Dump pending requests:\n"); |
3979877e SF |
68 | spin_lock(&GlobalMid_Lock); |
69 | list_for_each(tmp, &server->pending_mid_q) { | |
70 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); | |
f96637be JP |
71 | cifs_dbg(VFS, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu\n", |
72 | mid_entry->mid_state, | |
73 | le16_to_cpu(mid_entry->command), | |
74 | mid_entry->pid, | |
75 | mid_entry->callback_data, | |
76 | mid_entry->mid); | |
3979877e | 77 | #ifdef CONFIG_CIFS_STATS2 |
f96637be JP |
78 | cifs_dbg(VFS, "IsLarge: %d buf: %p time rcv: %ld now: %ld\n", |
79 | mid_entry->large_buf, | |
80 | mid_entry->resp_buf, | |
81 | mid_entry->when_received, | |
82 | jiffies); | |
3979877e | 83 | #endif /* STATS2 */ |
f96637be JP |
84 | cifs_dbg(VFS, "IsMult: %d IsEnd: %d\n", |
85 | mid_entry->multiRsp, mid_entry->multiEnd); | |
ad8b15f0 | 86 | if (mid_entry->resp_buf) { |
71992e62 | 87 | cifs_dump_detail(mid_entry->resp_buf, server); |
ad8b15f0 SF |
88 | cifs_dump_mem("existing buf: ", |
89 | mid_entry->resp_buf, 62); | |
3979877e SF |
90 | } |
91 | } | |
92 | spin_unlock(&GlobalMid_Lock); | |
3979877e | 93 | #endif /* CONFIG_CIFS_DEBUG2 */ |
8aa26f3e | 94 | } |
3979877e | 95 | |
1da177e4 | 96 | #ifdef CONFIG_PROC_FS |
02cf5905 AA |
97 | static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon) |
98 | { | |
99 | __u32 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType); | |
100 | ||
101 | seq_printf(m, "%s Mounts: %d ", tcon->treeName, tcon->tc_count); | |
102 | if (tcon->nativeFileSystem) | |
103 | seq_printf(m, "Type: %s ", tcon->nativeFileSystem); | |
104 | seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x\n\tPathComponentMax: %d Status: %d", | |
105 | le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics), | |
106 | le32_to_cpu(tcon->fsAttrInfo.Attributes), | |
107 | le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength), | |
108 | tcon->tidStatus); | |
109 | if (dev_type == FILE_DEVICE_DISK) | |
110 | seq_puts(m, " type: DISK "); | |
111 | else if (dev_type == FILE_DEVICE_CD_ROM) | |
112 | seq_puts(m, " type: CDROM "); | |
113 | else | |
114 | seq_printf(m, " type: %d ", dev_type); | |
ede2e520 SF |
115 | if (tcon->seal) |
116 | seq_printf(m, " Encrypted"); | |
5c5a41be SF |
117 | if (tcon->nocase) |
118 | seq_printf(m, " nocase"); | |
ede2e520 SF |
119 | if (tcon->unix_ext) |
120 | seq_printf(m, " POSIX Extensions"); | |
02cf5905 AA |
121 | if (tcon->ses->server->ops->dump_share_caps) |
122 | tcon->ses->server->ops->dump_share_caps(m, tcon); | |
123 | ||
124 | if (tcon->need_reconnect) | |
125 | seq_puts(m, "\tDISCONNECTED "); | |
126 | seq_putc(m, '\n'); | |
127 | } | |
128 | ||
bc0fe8b2 AA |
129 | static void |
130 | cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface) | |
131 | { | |
132 | struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr; | |
133 | struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr; | |
134 | ||
135 | seq_printf(m, "\t\tSpeed: %zu bps\n", iface->speed); | |
136 | seq_puts(m, "\t\tCapabilities: "); | |
137 | if (iface->rdma_capable) | |
138 | seq_puts(m, "rdma "); | |
139 | if (iface->rss_capable) | |
140 | seq_puts(m, "rss "); | |
141 | seq_putc(m, '\n'); | |
142 | if (iface->sockaddr.ss_family == AF_INET) | |
143 | seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr); | |
144 | else if (iface->sockaddr.ss_family == AF_INET6) | |
145 | seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr); | |
146 | } | |
147 | ||
f984c7b9 | 148 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 149 | { |
f1987b44 | 150 | struct list_head *tmp1, *tmp2, *tmp3; |
ffdd6e4d | 151 | struct mid_q_entry *mid_entry; |
14fbf50d | 152 | struct TCP_Server_Info *server; |
96daf2b0 SF |
153 | struct cifs_ses *ses; |
154 | struct cifs_tcon *tcon; | |
f1987b44 | 155 | int i, j; |
1da177e4 | 156 | |
f984c7b9 | 157 | seq_puts(m, |
1da177e4 LT |
158 | "Display Internal CIFS Data Structures for Debugging\n" |
159 | "---------------------------------------------------\n"); | |
f984c7b9 | 160 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 161 | seq_printf(m, "Features:"); |
f579903e | 162 | #ifdef CONFIG_CIFS_DFS_UPCALL |
950132af | 163 | seq_printf(m, " DFS"); |
f579903e SJ |
164 | #endif |
165 | #ifdef CONFIG_CIFS_FSCACHE | |
950132af SF |
166 | seq_printf(m, ",FSCACHE"); |
167 | #endif | |
168 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
169 | seq_printf(m, ",SMB_DIRECT"); | |
170 | #endif | |
171 | #ifdef CONFIG_CIFS_STATS2 | |
172 | seq_printf(m, ",STATS2"); | |
d2586500 | 173 | #else |
950132af SF |
174 | seq_printf(m, ",STATS"); |
175 | #endif | |
176 | #ifdef CONFIG_CIFS_DEBUG2 | |
177 | seq_printf(m, ",DEBUG2"); | |
178 | #elif defined(CONFIG_CIFS_DEBUG) | |
179 | seq_printf(m, ",DEBUG"); | |
180 | #endif | |
181 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY | |
182 | seq_printf(m, ",ALLOW_INSECURE_LEGACY"); | |
f579903e SJ |
183 | #endif |
184 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
950132af | 185 | seq_printf(m, ",WEAK_PW_HASH"); |
f579903e SJ |
186 | #endif |
187 | #ifdef CONFIG_CIFS_POSIX | |
950132af | 188 | seq_printf(m, ",CIFS_POSIX"); |
f579903e SJ |
189 | #endif |
190 | #ifdef CONFIG_CIFS_UPCALL | |
950132af | 191 | seq_printf(m, ",UPCALL(SPNEGO)"); |
f579903e SJ |
192 | #endif |
193 | #ifdef CONFIG_CIFS_XATTR | |
950132af | 194 | seq_printf(m, ",XATTR"); |
ca40b714 JL |
195 | #endif |
196 | #ifdef CONFIG_CIFS_ACL | |
950132af | 197 | seq_printf(m, ",ACL"); |
f579903e SJ |
198 | #endif |
199 | seq_putc(m, '\n'); | |
f984c7b9 AD |
200 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
201 | seq_printf(m, "Servers:"); | |
1da177e4 LT |
202 | |
203 | i = 0; | |
3f9bcca7 | 204 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
205 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
206 | server = list_entry(tmp1, struct TCP_Server_Info, | |
14fbf50d | 207 | tcp_ses_list); |
08a3b969 LL |
208 | |
209 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
210 | if (!server->rdma) | |
211 | goto skip_rdma; | |
212 | ||
213 | seq_printf(m, "\nSMBDirect (in hex) protocol version: %x " | |
214 | "transport status: %x", | |
215 | server->smbd_conn->protocol, | |
216 | server->smbd_conn->transport_status); | |
217 | seq_printf(m, "\nConn receive_credit_max: %x " | |
218 | "send_credit_target: %x max_send_size: %x", | |
219 | server->smbd_conn->receive_credit_max, | |
220 | server->smbd_conn->send_credit_target, | |
221 | server->smbd_conn->max_send_size); | |
222 | seq_printf(m, "\nConn max_fragmented_recv_size: %x " | |
223 | "max_fragmented_send_size: %x max_receive_size:%x", | |
224 | server->smbd_conn->max_fragmented_recv_size, | |
225 | server->smbd_conn->max_fragmented_send_size, | |
226 | server->smbd_conn->max_receive_size); | |
227 | seq_printf(m, "\nConn keep_alive_interval: %x " | |
228 | "max_readwrite_size: %x rdma_readwrite_threshold: %x", | |
229 | server->smbd_conn->keep_alive_interval, | |
230 | server->smbd_conn->max_readwrite_size, | |
231 | server->smbd_conn->rdma_readwrite_threshold); | |
232 | seq_printf(m, "\nDebug count_get_receive_buffer: %x " | |
233 | "count_put_receive_buffer: %x count_send_empty: %x", | |
234 | server->smbd_conn->count_get_receive_buffer, | |
235 | server->smbd_conn->count_put_receive_buffer, | |
236 | server->smbd_conn->count_send_empty); | |
237 | seq_printf(m, "\nRead Queue count_reassembly_queue: %x " | |
238 | "count_enqueue_reassembly_queue: %x " | |
239 | "count_dequeue_reassembly_queue: %x " | |
240 | "fragment_reassembly_remaining: %x " | |
241 | "reassembly_data_length: %x " | |
242 | "reassembly_queue_length: %x", | |
243 | server->smbd_conn->count_reassembly_queue, | |
244 | server->smbd_conn->count_enqueue_reassembly_queue, | |
245 | server->smbd_conn->count_dequeue_reassembly_queue, | |
246 | server->smbd_conn->fragment_reassembly_remaining, | |
247 | server->smbd_conn->reassembly_data_length, | |
248 | server->smbd_conn->reassembly_queue_length); | |
249 | seq_printf(m, "\nCurrent Credits send_credits: %x " | |
250 | "receive_credits: %x receive_credit_target: %x", | |
251 | atomic_read(&server->smbd_conn->send_credits), | |
252 | atomic_read(&server->smbd_conn->receive_credits), | |
253 | server->smbd_conn->receive_credit_target); | |
254 | seq_printf(m, "\nPending send_pending: %x send_payload_pending:" | |
255 | " %x smbd_send_pending: %x smbd_recv_pending: %x", | |
256 | atomic_read(&server->smbd_conn->send_pending), | |
257 | atomic_read(&server->smbd_conn->send_payload_pending), | |
258 | server->smbd_conn->smbd_send_pending, | |
259 | server->smbd_conn->smbd_recv_pending); | |
260 | seq_printf(m, "\nReceive buffers count_receive_queue: %x " | |
261 | "count_empty_packet_queue: %x", | |
262 | server->smbd_conn->count_receive_queue, | |
263 | server->smbd_conn->count_empty_packet_queue); | |
264 | seq_printf(m, "\nMR responder_resources: %x " | |
265 | "max_frmr_depth: %x mr_type: %x", | |
266 | server->smbd_conn->responder_resources, | |
267 | server->smbd_conn->max_frmr_depth, | |
268 | server->smbd_conn->mr_type); | |
269 | seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x", | |
270 | atomic_read(&server->smbd_conn->mr_ready_count), | |
271 | atomic_read(&server->smbd_conn->mr_used_count)); | |
272 | skip_rdma: | |
273 | #endif | |
ede2e520 SF |
274 | seq_printf(m, "\nNumber of credits: %d Dialect 0x%x", |
275 | server->credits, server->dialect); | |
276 | if (server->sign) | |
277 | seq_printf(m, " signed"); | |
fcef0db6 SF |
278 | if (server->posix_ext_supported) |
279 | seq_printf(m, " posix"); | |
0fdfef9a | 280 | |
1da177e4 | 281 | i++; |
14fbf50d | 282 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 283 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d JL |
284 | smb_ses_list); |
285 | if ((ses->serverDomain == NULL) || | |
286 | (ses->serverOS == NULL) || | |
287 | (ses->serverNOS == NULL)) { | |
1fa089ec SF |
288 | seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d\t", |
289 | i, ses->serverName, ses->ses_count, | |
290 | ses->capabilities, ses->status); | |
291 | if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) | |
292 | seq_printf(m, "Guest\t"); | |
293 | else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) | |
294 | seq_printf(m, "Anonymous\t"); | |
14fbf50d JL |
295 | } else { |
296 | seq_printf(m, | |
f1987b44 JL |
297 | "\n%d) Name: %s Domain: %s Uses: %d OS:" |
298 | " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
221601c3 | 299 | " session status: %d\t", |
b8643e1b | 300 | i, ses->serverName, ses->serverDomain, |
14fbf50d | 301 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 302 | ses->capabilities, ses->status); |
14fbf50d | 303 | } |
8339dd32 LL |
304 | if (server->rdma) |
305 | seq_printf(m, "RDMA\n\t"); | |
f984c7b9 | 306 | seq_printf(m, "TCP status: %d\n\tLocal Users To " |
14fbf50d JL |
307 | "Server: %d SecMode: 0x%x Req On Wire: %d", |
308 | server->tcpStatus, server->srv_count, | |
fc40f9cf | 309 | server->sec_mode, in_flight(server)); |
131afd0b SF |
310 | |
311 | #ifdef CONFIG_CIFS_STATS2 | |
f984c7b9 | 312 | seq_printf(m, " In Send: %d In MaxReq Wait: %d", |
789e6661 | 313 | atomic_read(&server->in_send), |
14fbf50d | 314 | atomic_read(&server->num_waiters)); |
131afd0b SF |
315 | #endif |
316 | ||
f1987b44 JL |
317 | seq_puts(m, "\n\tShares:"); |
318 | j = 0; | |
02cf5905 AA |
319 | |
320 | seq_printf(m, "\n\t%d) IPC: ", j); | |
321 | if (ses->tcon_ipc) | |
322 | cifs_debug_tcon(m, ses->tcon_ipc); | |
323 | else | |
324 | seq_puts(m, "none\n"); | |
325 | ||
f1987b44 | 326 | list_for_each(tmp3, &ses->tcon_list) { |
96daf2b0 | 327 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
328 | tcon_list); |
329 | ++j; | |
02cf5905 AA |
330 | seq_printf(m, "\n\t%d) ", j); |
331 | cifs_debug_tcon(m, tcon); | |
f1987b44 JL |
332 | } |
333 | ||
334 | seq_puts(m, "\n\tMIDs:\n"); | |
1da177e4 LT |
335 | |
336 | spin_lock(&GlobalMid_Lock); | |
14fbf50d | 337 | list_for_each(tmp3, &server->pending_mid_q) { |
f1987b44 | 338 | mid_entry = list_entry(tmp3, struct mid_q_entry, |
1da177e4 | 339 | qhead); |
f1987b44 | 340 | seq_printf(m, "\tState: %d com: %d pid:" |
7c9421e1 PS |
341 | " %d cbdata: %p mid %llu\n", |
342 | mid_entry->mid_state, | |
343 | le16_to_cpu(mid_entry->command), | |
344 | mid_entry->pid, | |
345 | mid_entry->callback_data, | |
346 | mid_entry->mid); | |
1da177e4 | 347 | } |
221601c3 | 348 | spin_unlock(&GlobalMid_Lock); |
bc0fe8b2 AA |
349 | |
350 | spin_lock(&ses->iface_lock); | |
115d5d28 SF |
351 | if (ses->iface_count) |
352 | seq_printf(m, "\n\tServer interfaces: %zu\n", | |
353 | ses->iface_count); | |
bc0fe8b2 AA |
354 | for (j = 0; j < ses->iface_count; j++) { |
355 | seq_printf(m, "\t%d)\n", j); | |
356 | cifs_dump_iface(m, &ses->iface_list[j]); | |
357 | } | |
358 | spin_unlock(&ses->iface_lock); | |
1da177e4 | 359 | } |
1da177e4 | 360 | } |
3f9bcca7 | 361 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 362 | seq_putc(m, '\n'); |
1da177e4 | 363 | |
1da177e4 | 364 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
365 | return 0; |
366 | } | |
1da177e4 | 367 | |
f984c7b9 AD |
368 | static ssize_t cifs_stats_proc_write(struct file *file, |
369 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 370 | { |
28e2aed2 | 371 | bool bv; |
221601c3 | 372 | int rc; |
f1987b44 JL |
373 | struct list_head *tmp1, *tmp2, *tmp3; |
374 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
375 | struct cifs_ses *ses; |
376 | struct cifs_tcon *tcon; | |
1047abc1 | 377 | |
1404297e KC |
378 | rc = kstrtobool_from_user(buffer, count, &bv); |
379 | if (rc == 0) { | |
4498eed5 | 380 | #ifdef CONFIG_CIFS_STATS2 |
468d6779 SF |
381 | int i; |
382 | ||
4498eed5 SF |
383 | atomic_set(&totBufAllocCount, 0); |
384 | atomic_set(&totSmBufAllocCount, 0); | |
385 | #endif /* CONFIG_CIFS_STATS2 */ | |
2c887635 SF |
386 | atomic_set(&tcpSesReconnectCount, 0); |
387 | atomic_set(&tconInfoReconnectCount, 0); | |
388 | ||
c281bc0c SF |
389 | spin_lock(&GlobalMid_Lock); |
390 | GlobalMaxActiveXid = 0; | |
391 | GlobalCurrentXid = 0; | |
392 | spin_unlock(&GlobalMid_Lock); | |
3f9bcca7 | 393 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
394 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
395 | server = list_entry(tmp1, struct TCP_Server_Info, | |
396 | tcp_ses_list); | |
468d6779 SF |
397 | #ifdef CONFIG_CIFS_STATS2 |
398 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) | |
399 | atomic_set(&server->smb2slowcmd[i], 0); | |
400 | #endif /* CONFIG_CIFS_STATS2 */ | |
c2b3382c | 401 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 402 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 403 | smb_ses_list); |
f1987b44 JL |
404 | list_for_each(tmp3, &ses->tcon_list) { |
405 | tcon = list_entry(tmp3, | |
96daf2b0 | 406 | struct cifs_tcon, |
f1987b44 JL |
407 | tcon_list); |
408 | atomic_set(&tcon->num_smbs_sent, 0); | |
c281bc0c SF |
409 | spin_lock(&tcon->stat_lock); |
410 | tcon->bytes_read = 0; | |
411 | tcon->bytes_written = 0; | |
412 | spin_unlock(&tcon->stat_lock); | |
44c58186 PS |
413 | if (server->ops->clear_stats) |
414 | server->ops->clear_stats(tcon); | |
f1987b44 JL |
415 | } |
416 | } | |
1047abc1 | 417 | } |
3f9bcca7 | 418 | spin_unlock(&cifs_tcp_ses_lock); |
1404297e KC |
419 | } else { |
420 | return rc; | |
1047abc1 SF |
421 | } |
422 | ||
221601c3 | 423 | return count; |
1047abc1 SF |
424 | } |
425 | ||
f984c7b9 | 426 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 427 | { |
f984c7b9 | 428 | int i; |
468d6779 SF |
429 | #ifdef CONFIG_CIFS_STATS2 |
430 | int j; | |
431 | #endif /* STATS2 */ | |
f1987b44 JL |
432 | struct list_head *tmp1, *tmp2, *tmp3; |
433 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
434 | struct cifs_ses *ses; |
435 | struct cifs_tcon *tcon; | |
1da177e4 | 436 | |
468d6779 | 437 | seq_printf(m, "Resources in use\nCIFS Session: %d\n", |
1da177e4 | 438 | sesInfoAllocCount.counter); |
f984c7b9 | 439 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 440 | tconInfoAllocCount.counter); |
f984c7b9 | 441 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
442 | bufAllocCount.counter, |
443 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 444 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 445 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 446 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 447 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 448 | atomic_read(&totBufAllocCount), |
221601c3 | 449 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
450 | #endif /* CONFIG_CIFS_STATS2 */ |
451 | ||
8097531a | 452 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 453 | seq_printf(m, |
1da177e4 | 454 | "\n%d session %d share reconnects\n", |
221601c3 | 455 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 456 | |
f984c7b9 | 457 | seq_printf(m, |
1da177e4 | 458 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 459 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
460 | |
461 | i = 0; | |
3f9bcca7 | 462 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
463 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
464 | server = list_entry(tmp1, struct TCP_Server_Info, | |
465 | tcp_ses_list); | |
468d6779 SF |
466 | #ifdef CONFIG_CIFS_STATS2 |
467 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) | |
468 | if (atomic_read(&server->smb2slowcmd[j])) | |
469 | seq_printf(m, "%d slow responses from %s for command %d\n", | |
470 | atomic_read(&server->smb2slowcmd[j]), | |
471 | server->hostname, j); | |
472 | #endif /* STATS2 */ | |
f1987b44 | 473 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 474 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
475 | smb_ses_list); |
476 | list_for_each(tmp3, &ses->tcon_list) { | |
477 | tcon = list_entry(tmp3, | |
96daf2b0 | 478 | struct cifs_tcon, |
f1987b44 JL |
479 | tcon_list); |
480 | i++; | |
481 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
482 | if (tcon->need_reconnect) | |
483 | seq_puts(m, "\tDISCONNECTED "); | |
44c58186 PS |
484 | seq_printf(m, "\nSMBs: %d", |
485 | atomic_read(&tcon->num_smbs_sent)); | |
486 | if (server->ops->print_stats) | |
487 | server->ops->print_stats(m, tcon); | |
f1987b44 JL |
488 | } |
489 | } | |
1da177e4 | 490 | } |
3f9bcca7 | 491 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 492 | |
f984c7b9 AD |
493 | seq_putc(m, '\n'); |
494 | return 0; | |
495 | } | |
221601c3 | 496 | |
f984c7b9 AD |
497 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
498 | { | |
499 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 500 | } |
f984c7b9 AD |
501 | |
502 | static const struct file_operations cifs_stats_proc_fops = { | |
f984c7b9 AD |
503 | .open = cifs_stats_proc_open, |
504 | .read = seq_read, | |
505 | .llseek = seq_lseek, | |
506 | .release = single_release, | |
507 | .write = cifs_stats_proc_write, | |
508 | }; | |
1da177e4 | 509 | |
d8ec913b LL |
510 | #ifdef CONFIG_CIFS_SMB_DIRECT |
511 | #define PROC_FILE_DEFINE(name) \ | |
512 | static ssize_t name##_write(struct file *file, const char __user *buffer, \ | |
513 | size_t count, loff_t *ppos) \ | |
514 | { \ | |
515 | int rc; \ | |
516 | rc = kstrtoint_from_user(buffer, count, 10, & name); \ | |
517 | if (rc) \ | |
518 | return rc; \ | |
519 | return count; \ | |
520 | } \ | |
521 | static int name##_proc_show(struct seq_file *m, void *v) \ | |
522 | { \ | |
523 | seq_printf(m, "%d\n", name ); \ | |
524 | return 0; \ | |
525 | } \ | |
526 | static int name##_open(struct inode *inode, struct file *file) \ | |
527 | { \ | |
528 | return single_open(file, name##_proc_show, NULL); \ | |
529 | } \ | |
530 | \ | |
531 | static const struct file_operations cifs_##name##_proc_fops = { \ | |
532 | .open = name##_open, \ | |
533 | .read = seq_read, \ | |
534 | .llseek = seq_lseek, \ | |
535 | .release = single_release, \ | |
536 | .write = name##_write, \ | |
537 | } | |
538 | ||
d8ec913b LL |
539 | PROC_FILE_DEFINE(rdma_readwrite_threshold); |
540 | PROC_FILE_DEFINE(smbd_max_frmr_depth); | |
541 | PROC_FILE_DEFINE(smbd_keep_alive_interval); | |
542 | PROC_FILE_DEFINE(smbd_max_receive_size); | |
543 | PROC_FILE_DEFINE(smbd_max_fragmented_recv_size); | |
544 | PROC_FILE_DEFINE(smbd_max_send_size); | |
545 | PROC_FILE_DEFINE(smbd_send_credit_target); | |
546 | PROC_FILE_DEFINE(smbd_receive_credit_max); | |
547 | #endif | |
548 | ||
1da177e4 | 549 | static struct proc_dir_entry *proc_fs_cifs; |
f984c7b9 | 550 | static const struct file_operations cifsFYI_proc_fops; |
f984c7b9 AD |
551 | static const struct file_operations cifs_lookup_cache_proc_fops; |
552 | static const struct file_operations traceSMB_proc_fops; | |
f984c7b9 | 553 | static const struct file_operations cifs_security_flags_proc_fops; |
f984c7b9 | 554 | static const struct file_operations cifs_linux_ext_proc_fops; |
1da177e4 LT |
555 | |
556 | void | |
557 | cifs_proc_init(void) | |
558 | { | |
36a5aeb8 | 559 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
560 | if (proc_fs_cifs == NULL) |
561 | return; | |
562 | ||
3f3942ac CH |
563 | proc_create_single("DebugData", 0, proc_fs_cifs, |
564 | cifs_debug_data_proc_show); | |
1da177e4 | 565 | |
6539e7f3 | 566 | proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_fops); |
6539e7f3 RS |
567 | proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_fops); |
568 | proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_fops); | |
569 | proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs, | |
99b1f5b2 | 570 | &cifs_linux_ext_proc_fops); |
6539e7f3 | 571 | proc_create("SecurityFlags", 0644, proc_fs_cifs, |
99b1f5b2 | 572 | &cifs_security_flags_proc_fops); |
6539e7f3 | 573 | proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, |
99b1f5b2 | 574 | &cifs_lookup_cache_proc_fops); |
d8ec913b | 575 | #ifdef CONFIG_CIFS_SMB_DIRECT |
6539e7f3 | 576 | proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs, |
d8ec913b | 577 | &cifs_rdma_readwrite_threshold_proc_fops); |
6539e7f3 | 578 | proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs, |
d8ec913b | 579 | &cifs_smbd_max_frmr_depth_proc_fops); |
6539e7f3 | 580 | proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs, |
d8ec913b | 581 | &cifs_smbd_keep_alive_interval_proc_fops); |
6539e7f3 | 582 | proc_create("smbd_max_receive_size", 0644, proc_fs_cifs, |
d8ec913b | 583 | &cifs_smbd_max_receive_size_proc_fops); |
6539e7f3 | 584 | proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs, |
d8ec913b | 585 | &cifs_smbd_max_fragmented_recv_size_proc_fops); |
6539e7f3 | 586 | proc_create("smbd_max_send_size", 0644, proc_fs_cifs, |
d8ec913b | 587 | &cifs_smbd_max_send_size_proc_fops); |
6539e7f3 | 588 | proc_create("smbd_send_credit_target", 0644, proc_fs_cifs, |
d8ec913b | 589 | &cifs_smbd_send_credit_target_proc_fops); |
6539e7f3 | 590 | proc_create("smbd_receive_credit_max", 0644, proc_fs_cifs, |
d8ec913b LL |
591 | &cifs_smbd_receive_credit_max_proc_fops); |
592 | #endif | |
1da177e4 LT |
593 | } |
594 | ||
595 | void | |
596 | cifs_proc_clean(void) | |
597 | { | |
598 | if (proc_fs_cifs == NULL) | |
599 | return; | |
600 | ||
601 | remove_proc_entry("DebugData", proc_fs_cifs); | |
602 | remove_proc_entry("cifsFYI", proc_fs_cifs); | |
603 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
1da177e4 | 604 | remove_proc_entry("Stats", proc_fs_cifs); |
221601c3 | 605 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 606 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 607 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
d8ec913b LL |
608 | #ifdef CONFIG_CIFS_SMB_DIRECT |
609 | remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs); | |
610 | remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs); | |
611 | remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs); | |
612 | remove_proc_entry("smbd_max_receive_size", proc_fs_cifs); | |
613 | remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs); | |
614 | remove_proc_entry("smbd_max_send_size", proc_fs_cifs); | |
615 | remove_proc_entry("smbd_send_credit_target", proc_fs_cifs); | |
616 | remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs); | |
617 | #endif | |
36a5aeb8 | 618 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
619 | } |
620 | ||
f984c7b9 | 621 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 622 | { |
f984c7b9 AD |
623 | seq_printf(m, "%d\n", cifsFYI); |
624 | return 0; | |
625 | } | |
1da177e4 | 626 | |
f984c7b9 AD |
627 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
628 | { | |
629 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 630 | } |
f984c7b9 AD |
631 | |
632 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
633 | size_t count, loff_t *ppos) | |
1da177e4 | 634 | { |
1404297e | 635 | char c[2] = { '\0' }; |
28e2aed2 | 636 | bool bv; |
1da177e4 LT |
637 | int rc; |
638 | ||
1404297e | 639 | rc = get_user(c[0], buffer); |
1da177e4 LT |
640 | if (rc) |
641 | return rc; | |
1404297e | 642 | if (strtobool(c, &bv) == 0) |
28e2aed2 | 643 | cifsFYI = bv; |
1404297e KC |
644 | else if ((c[0] > '1') && (c[0] <= '9')) |
645 | cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */ | |
25ad1cbd RS |
646 | else |
647 | return -EINVAL; | |
1da177e4 LT |
648 | |
649 | return count; | |
650 | } | |
651 | ||
f984c7b9 | 652 | static const struct file_operations cifsFYI_proc_fops = { |
f984c7b9 AD |
653 | .open = cifsFYI_proc_open, |
654 | .read = seq_read, | |
655 | .llseek = seq_lseek, | |
656 | .release = single_release, | |
657 | .write = cifsFYI_proc_write, | |
658 | }; | |
1da177e4 | 659 | |
f984c7b9 AD |
660 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
661 | { | |
662 | seq_printf(m, "%d\n", linuxExtEnabled); | |
663 | return 0; | |
664 | } | |
1da177e4 | 665 | |
f984c7b9 AD |
666 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
667 | { | |
668 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 669 | } |
f984c7b9 AD |
670 | |
671 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
672 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 673 | { |
221601c3 SF |
674 | int rc; |
675 | ||
1404297e | 676 | rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled); |
221601c3 SF |
677 | if (rc) |
678 | return rc; | |
28e2aed2 | 679 | |
221601c3 | 680 | return count; |
1da177e4 LT |
681 | } |
682 | ||
f984c7b9 | 683 | static const struct file_operations cifs_linux_ext_proc_fops = { |
f984c7b9 AD |
684 | .open = cifs_linux_ext_proc_open, |
685 | .read = seq_read, | |
686 | .llseek = seq_lseek, | |
687 | .release = single_release, | |
688 | .write = cifs_linux_ext_proc_write, | |
689 | }; | |
1da177e4 | 690 | |
f984c7b9 | 691 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 692 | { |
f984c7b9 AD |
693 | seq_printf(m, "%d\n", lookupCacheEnabled); |
694 | return 0; | |
695 | } | |
1da177e4 | 696 | |
f984c7b9 AD |
697 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
698 | { | |
699 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 700 | } |
f984c7b9 AD |
701 | |
702 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
703 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 704 | { |
1da177e4 LT |
705 | int rc; |
706 | ||
1404297e | 707 | rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled); |
1da177e4 LT |
708 | if (rc) |
709 | return rc; | |
28e2aed2 | 710 | |
1da177e4 LT |
711 | return count; |
712 | } | |
1da177e4 | 713 | |
f984c7b9 | 714 | static const struct file_operations cifs_lookup_cache_proc_fops = { |
f984c7b9 AD |
715 | .open = cifs_lookup_cache_proc_open, |
716 | .read = seq_read, | |
717 | .llseek = seq_lseek, | |
718 | .release = single_release, | |
719 | .write = cifs_lookup_cache_proc_write, | |
720 | }; | |
1da177e4 | 721 | |
f984c7b9 AD |
722 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
723 | { | |
724 | seq_printf(m, "%d\n", traceSMB); | |
725 | return 0; | |
726 | } | |
1da177e4 | 727 | |
f984c7b9 AD |
728 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
729 | { | |
730 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 731 | } |
f984c7b9 AD |
732 | |
733 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
734 | size_t count, loff_t *ppos) | |
1da177e4 | 735 | { |
1da177e4 LT |
736 | int rc; |
737 | ||
1404297e | 738 | rc = kstrtobool_from_user(buffer, count, &traceSMB); |
1da177e4 LT |
739 | if (rc) |
740 | return rc; | |
28e2aed2 | 741 | |
1da177e4 LT |
742 | return count; |
743 | } | |
744 | ||
f984c7b9 | 745 | static const struct file_operations traceSMB_proc_fops = { |
f984c7b9 AD |
746 | .open = traceSMB_proc_open, |
747 | .read = seq_read, | |
748 | .llseek = seq_lseek, | |
749 | .release = single_release, | |
750 | .write = traceSMB_proc_write, | |
751 | }; | |
1da177e4 | 752 | |
f984c7b9 AD |
753 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
754 | { | |
04912d6a | 755 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
756 | return 0; |
757 | } | |
1da177e4 | 758 | |
f984c7b9 AD |
759 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
760 | { | |
761 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 762 | } |
f984c7b9 | 763 | |
52dfb446 JL |
764 | /* |
765 | * Ensure that if someone sets a MUST flag, that we disable all other MAY | |
766 | * flags except for the ones corresponding to the given MUST flag. If there are | |
767 | * multiple MUST flags, then try to prefer more secure ones. | |
768 | */ | |
769 | static void | |
770 | cifs_security_flags_handle_must_flags(unsigned int *flags) | |
771 | { | |
772 | unsigned int signflags = *flags & CIFSSEC_MUST_SIGN; | |
773 | ||
774 | if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
775 | *flags = CIFSSEC_MUST_KRB5; | |
776 | else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
777 | *flags = CIFSSEC_MUST_NTLMSSP; | |
778 | else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) | |
779 | *flags = CIFSSEC_MUST_NTLMV2; | |
780 | else if ((*flags & CIFSSEC_MUST_NTLM) == CIFSSEC_MUST_NTLM) | |
781 | *flags = CIFSSEC_MUST_NTLM; | |
7a1ceba0 NC |
782 | else if (CIFSSEC_MUST_LANMAN && |
783 | (*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN) | |
52dfb446 | 784 | *flags = CIFSSEC_MUST_LANMAN; |
7a1ceba0 NC |
785 | else if (CIFSSEC_MUST_PLNTXT && |
786 | (*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT) | |
52dfb446 JL |
787 | *flags = CIFSSEC_MUST_PLNTXT; |
788 | ||
789 | *flags |= signflags; | |
790 | } | |
791 | ||
f984c7b9 AD |
792 | static ssize_t cifs_security_flags_proc_write(struct file *file, |
793 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 794 | { |
7715dad8 | 795 | int rc; |
bdc4bf6e SF |
796 | unsigned int flags; |
797 | char flags_string[12]; | |
28e2aed2 | 798 | bool bv; |
bdc4bf6e | 799 | |
221601c3 | 800 | if ((count < 1) || (count > 11)) |
3979877e | 801 | return -EINVAL; |
1da177e4 | 802 | |
bdc4bf6e | 803 | memset(flags_string, 0, 12); |
3979877e | 804 | |
221601c3 | 805 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 806 | return -EFAULT; |
3979877e | 807 | |
221601c3 | 808 | if (count < 3) { |
bdc4bf6e | 809 | /* single char or single char followed by null */ |
1404297e | 810 | if (strtobool(flags_string, &bv) == 0) { |
28e2aed2 | 811 | global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF; |
a013689d | 812 | return count; |
1404297e | 813 | } else if (!isdigit(flags_string[0])) { |
7715dad8 JL |
814 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", |
815 | flags_string); | |
a013689d SF |
816 | return -EINVAL; |
817 | } | |
bdc4bf6e | 818 | } |
bdc4bf6e | 819 | |
7715dad8 JL |
820 | /* else we have a number */ |
821 | rc = kstrtouint(flags_string, 0, &flags); | |
822 | if (rc) { | |
823 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", | |
824 | flags_string); | |
825 | return rc; | |
826 | } | |
bdc4bf6e | 827 | |
f96637be | 828 | cifs_dbg(FYI, "sec flags 0x%x\n", flags); |
bdc4bf6e | 829 | |
7715dad8 JL |
830 | if (flags == 0) { |
831 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string); | |
bdc4bf6e SF |
832 | return -EINVAL; |
833 | } | |
1da177e4 | 834 | |
221601c3 | 835 | if (flags & ~CIFSSEC_MASK) { |
7715dad8 | 836 | cifs_dbg(VFS, "Unsupported security flags: 0x%x\n", |
f96637be | 837 | flags & ~CIFSSEC_MASK); |
bdc4bf6e SF |
838 | return -EINVAL; |
839 | } | |
7715dad8 | 840 | |
52dfb446 JL |
841 | cifs_security_flags_handle_must_flags(&flags); |
842 | ||
bdc4bf6e | 843 | /* flags look ok - update the global security flags for cifs module */ |
04912d6a JL |
844 | global_secflags = flags; |
845 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 846 | /* requiring signing implies signing is allowed */ |
04912d6a | 847 | global_secflags |= CIFSSEC_MAY_SIGN; |
f96637be | 848 | cifs_dbg(FYI, "packet signing now required\n"); |
04912d6a | 849 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
f96637be | 850 | cifs_dbg(FYI, "packet signing disabled\n"); |
762e5ab7 SF |
851 | } |
852 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
853 | return count; |
854 | } | |
f984c7b9 AD |
855 | |
856 | static const struct file_operations cifs_security_flags_proc_fops = { | |
f984c7b9 AD |
857 | .open = cifs_security_flags_proc_open, |
858 | .read = seq_read, | |
859 | .llseek = seq_lseek, | |
860 | .release = single_release, | |
861 | .write = cifs_security_flags_proc_write, | |
862 | }; | |
90c81e0b | 863 | #else |
e086fcea | 864 | inline void cifs_proc_init(void) |
90c81e0b SF |
865 | { |
866 | } | |
867 | ||
e086fcea | 868 | inline void cifs_proc_clean(void) |
90c81e0b SF |
869 | { |
870 | } | |
871 | #endif /* PROC_FS */ |