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 | ||
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 | ||
35a90807 | 135 | seq_printf(m, "\tSpeed: %zu bps\n", iface->speed); |
bc0fe8b2 AA |
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 | ||
dfe33f9a SF |
148 | static int cifs_debug_files_proc_show(struct seq_file *m, void *v) |
149 | { | |
150 | struct list_head *stmp, *tmp, *tmp1, *tmp2; | |
151 | struct TCP_Server_Info *server; | |
152 | struct cifs_ses *ses; | |
153 | struct cifs_tcon *tcon; | |
154 | struct cifsFileInfo *cfile; | |
155 | ||
156 | seq_puts(m, "# Version:1\n"); | |
157 | seq_puts(m, "# Format:\n"); | |
158 | seq_puts(m, "# <tree id> <persistent fid> <flags> <count> <pid> <uid>"); | |
159 | #ifdef CONFIG_CIFS_DEBUG2 | |
160 | seq_printf(m, " <filename> <mid>\n"); | |
161 | #else | |
162 | seq_printf(m, " <filename>\n"); | |
163 | #endif /* CIFS_DEBUG2 */ | |
164 | spin_lock(&cifs_tcp_ses_lock); | |
165 | list_for_each(stmp, &cifs_tcp_ses_list) { | |
166 | server = list_entry(stmp, struct TCP_Server_Info, | |
167 | tcp_ses_list); | |
168 | list_for_each(tmp, &server->smb_ses_list) { | |
169 | ses = list_entry(tmp, struct cifs_ses, smb_ses_list); | |
170 | list_for_each(tmp1, &ses->tcon_list) { | |
171 | tcon = list_entry(tmp1, struct cifs_tcon, tcon_list); | |
172 | spin_lock(&tcon->open_file_lock); | |
173 | list_for_each(tmp2, &tcon->openFileList) { | |
174 | cfile = list_entry(tmp2, struct cifsFileInfo, | |
175 | tlist); | |
176 | seq_printf(m, | |
177 | "0x%x 0x%llx 0x%x %d %d %d %s", | |
178 | tcon->tid, | |
179 | cfile->fid.persistent_fid, | |
180 | cfile->f_flags, | |
181 | cfile->count, | |
182 | cfile->pid, | |
183 | from_kuid(&init_user_ns, cfile->uid), | |
184 | cfile->dentry->d_name.name); | |
185 | #ifdef CONFIG_CIFS_DEBUG2 | |
186 | seq_printf(m, " 0x%llx\n", cfile->fid.mid); | |
187 | #else | |
188 | seq_printf(m, "\n"); | |
189 | #endif /* CIFS_DEBUG2 */ | |
190 | } | |
191 | spin_unlock(&tcon->open_file_lock); | |
192 | } | |
193 | } | |
194 | } | |
195 | spin_unlock(&cifs_tcp_ses_lock); | |
196 | seq_putc(m, '\n'); | |
197 | return 0; | |
198 | } | |
199 | ||
f984c7b9 | 200 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 201 | { |
f1987b44 | 202 | struct list_head *tmp1, *tmp2, *tmp3; |
ffdd6e4d | 203 | struct mid_q_entry *mid_entry; |
14fbf50d | 204 | struct TCP_Server_Info *server; |
96daf2b0 SF |
205 | struct cifs_ses *ses; |
206 | struct cifs_tcon *tcon; | |
f1987b44 | 207 | int i, j; |
1da177e4 | 208 | |
f984c7b9 | 209 | seq_puts(m, |
1da177e4 LT |
210 | "Display Internal CIFS Data Structures for Debugging\n" |
211 | "---------------------------------------------------\n"); | |
f984c7b9 | 212 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 213 | seq_printf(m, "Features:"); |
f579903e | 214 | #ifdef CONFIG_CIFS_DFS_UPCALL |
950132af | 215 | seq_printf(m, " DFS"); |
f579903e SJ |
216 | #endif |
217 | #ifdef CONFIG_CIFS_FSCACHE | |
950132af SF |
218 | seq_printf(m, ",FSCACHE"); |
219 | #endif | |
220 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
221 | seq_printf(m, ",SMB_DIRECT"); | |
222 | #endif | |
223 | #ifdef CONFIG_CIFS_STATS2 | |
224 | seq_printf(m, ",STATS2"); | |
d2586500 | 225 | #else |
950132af SF |
226 | seq_printf(m, ",STATS"); |
227 | #endif | |
228 | #ifdef CONFIG_CIFS_DEBUG2 | |
229 | seq_printf(m, ",DEBUG2"); | |
230 | #elif defined(CONFIG_CIFS_DEBUG) | |
231 | seq_printf(m, ",DEBUG"); | |
232 | #endif | |
233 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY | |
234 | seq_printf(m, ",ALLOW_INSECURE_LEGACY"); | |
f579903e SJ |
235 | #endif |
236 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
950132af | 237 | seq_printf(m, ",WEAK_PW_HASH"); |
f579903e SJ |
238 | #endif |
239 | #ifdef CONFIG_CIFS_POSIX | |
950132af | 240 | seq_printf(m, ",CIFS_POSIX"); |
f579903e SJ |
241 | #endif |
242 | #ifdef CONFIG_CIFS_UPCALL | |
950132af | 243 | seq_printf(m, ",UPCALL(SPNEGO)"); |
f579903e SJ |
244 | #endif |
245 | #ifdef CONFIG_CIFS_XATTR | |
950132af | 246 | seq_printf(m, ",XATTR"); |
ca40b714 JL |
247 | #endif |
248 | #ifdef CONFIG_CIFS_ACL | |
950132af | 249 | seq_printf(m, ",ACL"); |
f579903e SJ |
250 | #endif |
251 | seq_putc(m, '\n'); | |
f984c7b9 AD |
252 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
253 | seq_printf(m, "Servers:"); | |
1da177e4 LT |
254 | |
255 | i = 0; | |
3f9bcca7 | 256 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
257 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
258 | server = list_entry(tmp1, struct TCP_Server_Info, | |
14fbf50d | 259 | tcp_ses_list); |
08a3b969 LL |
260 | |
261 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
262 | if (!server->rdma) | |
263 | goto skip_rdma; | |
264 | ||
265 | seq_printf(m, "\nSMBDirect (in hex) protocol version: %x " | |
266 | "transport status: %x", | |
267 | server->smbd_conn->protocol, | |
268 | server->smbd_conn->transport_status); | |
269 | seq_printf(m, "\nConn receive_credit_max: %x " | |
270 | "send_credit_target: %x max_send_size: %x", | |
271 | server->smbd_conn->receive_credit_max, | |
272 | server->smbd_conn->send_credit_target, | |
273 | server->smbd_conn->max_send_size); | |
274 | seq_printf(m, "\nConn max_fragmented_recv_size: %x " | |
275 | "max_fragmented_send_size: %x max_receive_size:%x", | |
276 | server->smbd_conn->max_fragmented_recv_size, | |
277 | server->smbd_conn->max_fragmented_send_size, | |
278 | server->smbd_conn->max_receive_size); | |
279 | seq_printf(m, "\nConn keep_alive_interval: %x " | |
280 | "max_readwrite_size: %x rdma_readwrite_threshold: %x", | |
281 | server->smbd_conn->keep_alive_interval, | |
282 | server->smbd_conn->max_readwrite_size, | |
283 | server->smbd_conn->rdma_readwrite_threshold); | |
284 | seq_printf(m, "\nDebug count_get_receive_buffer: %x " | |
285 | "count_put_receive_buffer: %x count_send_empty: %x", | |
286 | server->smbd_conn->count_get_receive_buffer, | |
287 | server->smbd_conn->count_put_receive_buffer, | |
288 | server->smbd_conn->count_send_empty); | |
289 | seq_printf(m, "\nRead Queue count_reassembly_queue: %x " | |
290 | "count_enqueue_reassembly_queue: %x " | |
291 | "count_dequeue_reassembly_queue: %x " | |
292 | "fragment_reassembly_remaining: %x " | |
293 | "reassembly_data_length: %x " | |
294 | "reassembly_queue_length: %x", | |
295 | server->smbd_conn->count_reassembly_queue, | |
296 | server->smbd_conn->count_enqueue_reassembly_queue, | |
297 | server->smbd_conn->count_dequeue_reassembly_queue, | |
298 | server->smbd_conn->fragment_reassembly_remaining, | |
299 | server->smbd_conn->reassembly_data_length, | |
300 | server->smbd_conn->reassembly_queue_length); | |
301 | seq_printf(m, "\nCurrent Credits send_credits: %x " | |
302 | "receive_credits: %x receive_credit_target: %x", | |
303 | atomic_read(&server->smbd_conn->send_credits), | |
304 | atomic_read(&server->smbd_conn->receive_credits), | |
305 | server->smbd_conn->receive_credit_target); | |
306 | seq_printf(m, "\nPending send_pending: %x send_payload_pending:" | |
307 | " %x smbd_send_pending: %x smbd_recv_pending: %x", | |
308 | atomic_read(&server->smbd_conn->send_pending), | |
309 | atomic_read(&server->smbd_conn->send_payload_pending), | |
310 | server->smbd_conn->smbd_send_pending, | |
311 | server->smbd_conn->smbd_recv_pending); | |
312 | seq_printf(m, "\nReceive buffers count_receive_queue: %x " | |
313 | "count_empty_packet_queue: %x", | |
314 | server->smbd_conn->count_receive_queue, | |
315 | server->smbd_conn->count_empty_packet_queue); | |
316 | seq_printf(m, "\nMR responder_resources: %x " | |
317 | "max_frmr_depth: %x mr_type: %x", | |
318 | server->smbd_conn->responder_resources, | |
319 | server->smbd_conn->max_frmr_depth, | |
320 | server->smbd_conn->mr_type); | |
321 | seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x", | |
322 | atomic_read(&server->smbd_conn->mr_ready_count), | |
323 | atomic_read(&server->smbd_conn->mr_used_count)); | |
324 | skip_rdma: | |
325 | #endif | |
ede2e520 SF |
326 | seq_printf(m, "\nNumber of credits: %d Dialect 0x%x", |
327 | server->credits, server->dialect); | |
328 | if (server->sign) | |
329 | seq_printf(m, " signed"); | |
fcef0db6 SF |
330 | if (server->posix_ext_supported) |
331 | seq_printf(m, " posix"); | |
0fdfef9a | 332 | |
1da177e4 | 333 | i++; |
14fbf50d | 334 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 335 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d JL |
336 | smb_ses_list); |
337 | if ((ses->serverDomain == NULL) || | |
338 | (ses->serverOS == NULL) || | |
339 | (ses->serverNOS == NULL)) { | |
9e1a37da | 340 | seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d ", |
1fa089ec SF |
341 | i, ses->serverName, ses->ses_count, |
342 | ses->capabilities, ses->status); | |
343 | if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) | |
344 | seq_printf(m, "Guest\t"); | |
345 | else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) | |
346 | seq_printf(m, "Anonymous\t"); | |
14fbf50d JL |
347 | } else { |
348 | seq_printf(m, | |
f1987b44 JL |
349 | "\n%d) Name: %s Domain: %s Uses: %d OS:" |
350 | " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
9e1a37da | 351 | " session status: %d ", |
b8643e1b | 352 | i, ses->serverName, ses->serverDomain, |
14fbf50d | 353 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 354 | ses->capabilities, ses->status); |
14fbf50d | 355 | } |
8339dd32 LL |
356 | if (server->rdma) |
357 | seq_printf(m, "RDMA\n\t"); | |
9e1a37da | 358 | seq_printf(m, "TCP status: %d Instance: %d\n\tLocal Users To " |
14fbf50d | 359 | "Server: %d SecMode: 0x%x Req On Wire: %d", |
9e1a37da SF |
360 | server->tcpStatus, |
361 | server->reconnect_instance, | |
362 | server->srv_count, | |
fc40f9cf | 363 | server->sec_mode, in_flight(server)); |
131afd0b SF |
364 | |
365 | #ifdef CONFIG_CIFS_STATS2 | |
f984c7b9 | 366 | seq_printf(m, " In Send: %d In MaxReq Wait: %d", |
789e6661 | 367 | atomic_read(&server->in_send), |
14fbf50d | 368 | atomic_read(&server->num_waiters)); |
131afd0b SF |
369 | #endif |
370 | ||
f1987b44 JL |
371 | seq_puts(m, "\n\tShares:"); |
372 | j = 0; | |
02cf5905 AA |
373 | |
374 | seq_printf(m, "\n\t%d) IPC: ", j); | |
375 | if (ses->tcon_ipc) | |
376 | cifs_debug_tcon(m, ses->tcon_ipc); | |
377 | else | |
378 | seq_puts(m, "none\n"); | |
379 | ||
f1987b44 | 380 | list_for_each(tmp3, &ses->tcon_list) { |
96daf2b0 | 381 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
382 | tcon_list); |
383 | ++j; | |
02cf5905 AA |
384 | seq_printf(m, "\n\t%d) ", j); |
385 | cifs_debug_tcon(m, tcon); | |
f1987b44 JL |
386 | } |
387 | ||
388 | seq_puts(m, "\n\tMIDs:\n"); | |
1da177e4 LT |
389 | |
390 | spin_lock(&GlobalMid_Lock); | |
14fbf50d | 391 | list_for_each(tmp3, &server->pending_mid_q) { |
f1987b44 | 392 | mid_entry = list_entry(tmp3, struct mid_q_entry, |
1da177e4 | 393 | qhead); |
f1987b44 | 394 | seq_printf(m, "\tState: %d com: %d pid:" |
7c9421e1 PS |
395 | " %d cbdata: %p mid %llu\n", |
396 | mid_entry->mid_state, | |
397 | le16_to_cpu(mid_entry->command), | |
398 | mid_entry->pid, | |
399 | mid_entry->callback_data, | |
400 | mid_entry->mid); | |
1da177e4 | 401 | } |
221601c3 | 402 | spin_unlock(&GlobalMid_Lock); |
bc0fe8b2 AA |
403 | |
404 | spin_lock(&ses->iface_lock); | |
115d5d28 SF |
405 | if (ses->iface_count) |
406 | seq_printf(m, "\n\tServer interfaces: %zu\n", | |
407 | ses->iface_count); | |
bc0fe8b2 | 408 | for (j = 0; j < ses->iface_count; j++) { |
35a90807 | 409 | seq_printf(m, "\t%d)", j); |
bc0fe8b2 AA |
410 | cifs_dump_iface(m, &ses->iface_list[j]); |
411 | } | |
412 | spin_unlock(&ses->iface_lock); | |
1da177e4 | 413 | } |
1da177e4 | 414 | } |
3f9bcca7 | 415 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 416 | seq_putc(m, '\n'); |
1da177e4 | 417 | |
1da177e4 | 418 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
419 | return 0; |
420 | } | |
1da177e4 | 421 | |
f984c7b9 AD |
422 | static ssize_t cifs_stats_proc_write(struct file *file, |
423 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 424 | { |
28e2aed2 | 425 | bool bv; |
221601c3 | 426 | int rc; |
f1987b44 JL |
427 | struct list_head *tmp1, *tmp2, *tmp3; |
428 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
429 | struct cifs_ses *ses; |
430 | struct cifs_tcon *tcon; | |
1047abc1 | 431 | |
1404297e KC |
432 | rc = kstrtobool_from_user(buffer, count, &bv); |
433 | if (rc == 0) { | |
4498eed5 | 434 | #ifdef CONFIG_CIFS_STATS2 |
468d6779 SF |
435 | int i; |
436 | ||
4498eed5 SF |
437 | atomic_set(&totBufAllocCount, 0); |
438 | atomic_set(&totSmBufAllocCount, 0); | |
439 | #endif /* CONFIG_CIFS_STATS2 */ | |
2c887635 SF |
440 | atomic_set(&tcpSesReconnectCount, 0); |
441 | atomic_set(&tconInfoReconnectCount, 0); | |
442 | ||
c281bc0c SF |
443 | spin_lock(&GlobalMid_Lock); |
444 | GlobalMaxActiveXid = 0; | |
445 | GlobalCurrentXid = 0; | |
446 | spin_unlock(&GlobalMid_Lock); | |
3f9bcca7 | 447 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
448 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
449 | server = list_entry(tmp1, struct TCP_Server_Info, | |
450 | tcp_ses_list); | |
468d6779 SF |
451 | #ifdef CONFIG_CIFS_STATS2 |
452 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) | |
453 | atomic_set(&server->smb2slowcmd[i], 0); | |
454 | #endif /* CONFIG_CIFS_STATS2 */ | |
c2b3382c | 455 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 456 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 457 | smb_ses_list); |
f1987b44 JL |
458 | list_for_each(tmp3, &ses->tcon_list) { |
459 | tcon = list_entry(tmp3, | |
96daf2b0 | 460 | struct cifs_tcon, |
f1987b44 JL |
461 | tcon_list); |
462 | atomic_set(&tcon->num_smbs_sent, 0); | |
c281bc0c SF |
463 | spin_lock(&tcon->stat_lock); |
464 | tcon->bytes_read = 0; | |
465 | tcon->bytes_written = 0; | |
466 | spin_unlock(&tcon->stat_lock); | |
44c58186 PS |
467 | if (server->ops->clear_stats) |
468 | server->ops->clear_stats(tcon); | |
f1987b44 JL |
469 | } |
470 | } | |
1047abc1 | 471 | } |
3f9bcca7 | 472 | spin_unlock(&cifs_tcp_ses_lock); |
1404297e KC |
473 | } else { |
474 | return rc; | |
1047abc1 SF |
475 | } |
476 | ||
221601c3 | 477 | return count; |
1047abc1 SF |
478 | } |
479 | ||
f984c7b9 | 480 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 481 | { |
f984c7b9 | 482 | int i; |
468d6779 SF |
483 | #ifdef CONFIG_CIFS_STATS2 |
484 | int j; | |
485 | #endif /* STATS2 */ | |
f1987b44 JL |
486 | struct list_head *tmp1, *tmp2, *tmp3; |
487 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
488 | struct cifs_ses *ses; |
489 | struct cifs_tcon *tcon; | |
1da177e4 | 490 | |
468d6779 | 491 | seq_printf(m, "Resources in use\nCIFS Session: %d\n", |
1da177e4 | 492 | sesInfoAllocCount.counter); |
f984c7b9 | 493 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 494 | tconInfoAllocCount.counter); |
f984c7b9 | 495 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
496 | bufAllocCount.counter, |
497 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 498 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 499 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 500 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 501 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 502 | atomic_read(&totBufAllocCount), |
221601c3 | 503 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
504 | #endif /* CONFIG_CIFS_STATS2 */ |
505 | ||
8097531a | 506 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 507 | seq_printf(m, |
1da177e4 | 508 | "\n%d session %d share reconnects\n", |
221601c3 | 509 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 510 | |
f984c7b9 | 511 | seq_printf(m, |
1da177e4 | 512 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 513 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
514 | |
515 | i = 0; | |
3f9bcca7 | 516 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
517 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
518 | server = list_entry(tmp1, struct TCP_Server_Info, | |
519 | tcp_ses_list); | |
468d6779 SF |
520 | #ifdef CONFIG_CIFS_STATS2 |
521 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) | |
522 | if (atomic_read(&server->smb2slowcmd[j])) | |
523 | seq_printf(m, "%d slow responses from %s for command %d\n", | |
524 | atomic_read(&server->smb2slowcmd[j]), | |
525 | server->hostname, j); | |
526 | #endif /* STATS2 */ | |
f1987b44 | 527 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 528 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
529 | smb_ses_list); |
530 | list_for_each(tmp3, &ses->tcon_list) { | |
531 | tcon = list_entry(tmp3, | |
96daf2b0 | 532 | struct cifs_tcon, |
f1987b44 JL |
533 | tcon_list); |
534 | i++; | |
535 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
536 | if (tcon->need_reconnect) | |
537 | seq_puts(m, "\tDISCONNECTED "); | |
44c58186 PS |
538 | seq_printf(m, "\nSMBs: %d", |
539 | atomic_read(&tcon->num_smbs_sent)); | |
540 | if (server->ops->print_stats) | |
541 | server->ops->print_stats(m, tcon); | |
f1987b44 JL |
542 | } |
543 | } | |
1da177e4 | 544 | } |
3f9bcca7 | 545 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 546 | |
f984c7b9 AD |
547 | seq_putc(m, '\n'); |
548 | return 0; | |
549 | } | |
221601c3 | 550 | |
f984c7b9 AD |
551 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
552 | { | |
553 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 554 | } |
f984c7b9 AD |
555 | |
556 | static const struct file_operations cifs_stats_proc_fops = { | |
f984c7b9 AD |
557 | .open = cifs_stats_proc_open, |
558 | .read = seq_read, | |
559 | .llseek = seq_lseek, | |
560 | .release = single_release, | |
561 | .write = cifs_stats_proc_write, | |
562 | }; | |
1da177e4 | 563 | |
d8ec913b LL |
564 | #ifdef CONFIG_CIFS_SMB_DIRECT |
565 | #define PROC_FILE_DEFINE(name) \ | |
566 | static ssize_t name##_write(struct file *file, const char __user *buffer, \ | |
567 | size_t count, loff_t *ppos) \ | |
568 | { \ | |
569 | int rc; \ | |
570 | rc = kstrtoint_from_user(buffer, count, 10, & name); \ | |
571 | if (rc) \ | |
572 | return rc; \ | |
573 | return count; \ | |
574 | } \ | |
575 | static int name##_proc_show(struct seq_file *m, void *v) \ | |
576 | { \ | |
577 | seq_printf(m, "%d\n", name ); \ | |
578 | return 0; \ | |
579 | } \ | |
580 | static int name##_open(struct inode *inode, struct file *file) \ | |
581 | { \ | |
582 | return single_open(file, name##_proc_show, NULL); \ | |
583 | } \ | |
584 | \ | |
585 | static const struct file_operations cifs_##name##_proc_fops = { \ | |
586 | .open = name##_open, \ | |
587 | .read = seq_read, \ | |
588 | .llseek = seq_lseek, \ | |
589 | .release = single_release, \ | |
590 | .write = name##_write, \ | |
591 | } | |
592 | ||
d8ec913b LL |
593 | PROC_FILE_DEFINE(rdma_readwrite_threshold); |
594 | PROC_FILE_DEFINE(smbd_max_frmr_depth); | |
595 | PROC_FILE_DEFINE(smbd_keep_alive_interval); | |
596 | PROC_FILE_DEFINE(smbd_max_receive_size); | |
597 | PROC_FILE_DEFINE(smbd_max_fragmented_recv_size); | |
598 | PROC_FILE_DEFINE(smbd_max_send_size); | |
599 | PROC_FILE_DEFINE(smbd_send_credit_target); | |
600 | PROC_FILE_DEFINE(smbd_receive_credit_max); | |
601 | #endif | |
602 | ||
1da177e4 | 603 | static struct proc_dir_entry *proc_fs_cifs; |
f984c7b9 | 604 | static const struct file_operations cifsFYI_proc_fops; |
f984c7b9 AD |
605 | static const struct file_operations cifs_lookup_cache_proc_fops; |
606 | static const struct file_operations traceSMB_proc_fops; | |
f984c7b9 | 607 | static const struct file_operations cifs_security_flags_proc_fops; |
f984c7b9 | 608 | static const struct file_operations cifs_linux_ext_proc_fops; |
1da177e4 LT |
609 | |
610 | void | |
611 | cifs_proc_init(void) | |
612 | { | |
36a5aeb8 | 613 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
614 | if (proc_fs_cifs == NULL) |
615 | return; | |
616 | ||
3f3942ac CH |
617 | proc_create_single("DebugData", 0, proc_fs_cifs, |
618 | cifs_debug_data_proc_show); | |
1da177e4 | 619 | |
dfe33f9a SF |
620 | proc_create_single("open_files", 0400, proc_fs_cifs, |
621 | cifs_debug_files_proc_show); | |
622 | ||
6539e7f3 | 623 | proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_fops); |
6539e7f3 RS |
624 | proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_fops); |
625 | proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_fops); | |
626 | proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs, | |
99b1f5b2 | 627 | &cifs_linux_ext_proc_fops); |
6539e7f3 | 628 | proc_create("SecurityFlags", 0644, proc_fs_cifs, |
99b1f5b2 | 629 | &cifs_security_flags_proc_fops); |
6539e7f3 | 630 | proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, |
99b1f5b2 | 631 | &cifs_lookup_cache_proc_fops); |
d8ec913b | 632 | #ifdef CONFIG_CIFS_SMB_DIRECT |
6539e7f3 | 633 | proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs, |
d8ec913b | 634 | &cifs_rdma_readwrite_threshold_proc_fops); |
6539e7f3 | 635 | proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs, |
d8ec913b | 636 | &cifs_smbd_max_frmr_depth_proc_fops); |
6539e7f3 | 637 | proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs, |
d8ec913b | 638 | &cifs_smbd_keep_alive_interval_proc_fops); |
6539e7f3 | 639 | proc_create("smbd_max_receive_size", 0644, proc_fs_cifs, |
d8ec913b | 640 | &cifs_smbd_max_receive_size_proc_fops); |
6539e7f3 | 641 | proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs, |
d8ec913b | 642 | &cifs_smbd_max_fragmented_recv_size_proc_fops); |
6539e7f3 | 643 | proc_create("smbd_max_send_size", 0644, proc_fs_cifs, |
d8ec913b | 644 | &cifs_smbd_max_send_size_proc_fops); |
6539e7f3 | 645 | proc_create("smbd_send_credit_target", 0644, proc_fs_cifs, |
d8ec913b | 646 | &cifs_smbd_send_credit_target_proc_fops); |
6539e7f3 | 647 | proc_create("smbd_receive_credit_max", 0644, proc_fs_cifs, |
d8ec913b LL |
648 | &cifs_smbd_receive_credit_max_proc_fops); |
649 | #endif | |
1da177e4 LT |
650 | } |
651 | ||
652 | void | |
653 | cifs_proc_clean(void) | |
654 | { | |
655 | if (proc_fs_cifs == NULL) | |
656 | return; | |
657 | ||
658 | remove_proc_entry("DebugData", proc_fs_cifs); | |
dfe33f9a | 659 | remove_proc_entry("open_files", proc_fs_cifs); |
1da177e4 LT |
660 | remove_proc_entry("cifsFYI", proc_fs_cifs); |
661 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
1da177e4 | 662 | remove_proc_entry("Stats", proc_fs_cifs); |
221601c3 | 663 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 664 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 665 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
d8ec913b LL |
666 | #ifdef CONFIG_CIFS_SMB_DIRECT |
667 | remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs); | |
668 | remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs); | |
669 | remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs); | |
670 | remove_proc_entry("smbd_max_receive_size", proc_fs_cifs); | |
671 | remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs); | |
672 | remove_proc_entry("smbd_max_send_size", proc_fs_cifs); | |
673 | remove_proc_entry("smbd_send_credit_target", proc_fs_cifs); | |
674 | remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs); | |
675 | #endif | |
36a5aeb8 | 676 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
677 | } |
678 | ||
f984c7b9 | 679 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 680 | { |
f984c7b9 AD |
681 | seq_printf(m, "%d\n", cifsFYI); |
682 | return 0; | |
683 | } | |
1da177e4 | 684 | |
f984c7b9 AD |
685 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
686 | { | |
687 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 688 | } |
f984c7b9 AD |
689 | |
690 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
691 | size_t count, loff_t *ppos) | |
1da177e4 | 692 | { |
1404297e | 693 | char c[2] = { '\0' }; |
28e2aed2 | 694 | bool bv; |
1da177e4 LT |
695 | int rc; |
696 | ||
1404297e | 697 | rc = get_user(c[0], buffer); |
1da177e4 LT |
698 | if (rc) |
699 | return rc; | |
1404297e | 700 | if (strtobool(c, &bv) == 0) |
28e2aed2 | 701 | cifsFYI = bv; |
1404297e KC |
702 | else if ((c[0] > '1') && (c[0] <= '9')) |
703 | cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */ | |
25ad1cbd RS |
704 | else |
705 | return -EINVAL; | |
1da177e4 LT |
706 | |
707 | return count; | |
708 | } | |
709 | ||
f984c7b9 | 710 | static const struct file_operations cifsFYI_proc_fops = { |
f984c7b9 AD |
711 | .open = cifsFYI_proc_open, |
712 | .read = seq_read, | |
713 | .llseek = seq_lseek, | |
714 | .release = single_release, | |
715 | .write = cifsFYI_proc_write, | |
716 | }; | |
1da177e4 | 717 | |
f984c7b9 AD |
718 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
719 | { | |
720 | seq_printf(m, "%d\n", linuxExtEnabled); | |
721 | return 0; | |
722 | } | |
1da177e4 | 723 | |
f984c7b9 AD |
724 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
725 | { | |
726 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 727 | } |
f984c7b9 AD |
728 | |
729 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
730 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 731 | { |
221601c3 SF |
732 | int rc; |
733 | ||
1404297e | 734 | rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled); |
221601c3 SF |
735 | if (rc) |
736 | return rc; | |
28e2aed2 | 737 | |
221601c3 | 738 | return count; |
1da177e4 LT |
739 | } |
740 | ||
f984c7b9 | 741 | static const struct file_operations cifs_linux_ext_proc_fops = { |
f984c7b9 AD |
742 | .open = cifs_linux_ext_proc_open, |
743 | .read = seq_read, | |
744 | .llseek = seq_lseek, | |
745 | .release = single_release, | |
746 | .write = cifs_linux_ext_proc_write, | |
747 | }; | |
1da177e4 | 748 | |
f984c7b9 | 749 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 750 | { |
f984c7b9 AD |
751 | seq_printf(m, "%d\n", lookupCacheEnabled); |
752 | return 0; | |
753 | } | |
1da177e4 | 754 | |
f984c7b9 AD |
755 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
756 | { | |
757 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 758 | } |
f984c7b9 AD |
759 | |
760 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
761 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 762 | { |
1da177e4 LT |
763 | int rc; |
764 | ||
1404297e | 765 | rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled); |
1da177e4 LT |
766 | if (rc) |
767 | return rc; | |
28e2aed2 | 768 | |
1da177e4 LT |
769 | return count; |
770 | } | |
1da177e4 | 771 | |
f984c7b9 | 772 | static const struct file_operations cifs_lookup_cache_proc_fops = { |
f984c7b9 AD |
773 | .open = cifs_lookup_cache_proc_open, |
774 | .read = seq_read, | |
775 | .llseek = seq_lseek, | |
776 | .release = single_release, | |
777 | .write = cifs_lookup_cache_proc_write, | |
778 | }; | |
1da177e4 | 779 | |
f984c7b9 AD |
780 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
781 | { | |
782 | seq_printf(m, "%d\n", traceSMB); | |
783 | return 0; | |
784 | } | |
1da177e4 | 785 | |
f984c7b9 AD |
786 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
787 | { | |
788 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 789 | } |
f984c7b9 AD |
790 | |
791 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
792 | size_t count, loff_t *ppos) | |
1da177e4 | 793 | { |
1da177e4 LT |
794 | int rc; |
795 | ||
1404297e | 796 | rc = kstrtobool_from_user(buffer, count, &traceSMB); |
1da177e4 LT |
797 | if (rc) |
798 | return rc; | |
28e2aed2 | 799 | |
1da177e4 LT |
800 | return count; |
801 | } | |
802 | ||
f984c7b9 | 803 | static const struct file_operations traceSMB_proc_fops = { |
f984c7b9 AD |
804 | .open = traceSMB_proc_open, |
805 | .read = seq_read, | |
806 | .llseek = seq_lseek, | |
807 | .release = single_release, | |
808 | .write = traceSMB_proc_write, | |
809 | }; | |
1da177e4 | 810 | |
f984c7b9 AD |
811 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
812 | { | |
04912d6a | 813 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
814 | return 0; |
815 | } | |
1da177e4 | 816 | |
f984c7b9 AD |
817 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
818 | { | |
819 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 820 | } |
f984c7b9 | 821 | |
52dfb446 JL |
822 | /* |
823 | * Ensure that if someone sets a MUST flag, that we disable all other MAY | |
824 | * flags except for the ones corresponding to the given MUST flag. If there are | |
825 | * multiple MUST flags, then try to prefer more secure ones. | |
826 | */ | |
827 | static void | |
828 | cifs_security_flags_handle_must_flags(unsigned int *flags) | |
829 | { | |
830 | unsigned int signflags = *flags & CIFSSEC_MUST_SIGN; | |
831 | ||
832 | if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
833 | *flags = CIFSSEC_MUST_KRB5; | |
834 | else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
835 | *flags = CIFSSEC_MUST_NTLMSSP; | |
836 | else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) | |
837 | *flags = CIFSSEC_MUST_NTLMV2; | |
838 | else if ((*flags & CIFSSEC_MUST_NTLM) == CIFSSEC_MUST_NTLM) | |
839 | *flags = CIFSSEC_MUST_NTLM; | |
7a1ceba0 NC |
840 | else if (CIFSSEC_MUST_LANMAN && |
841 | (*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN) | |
52dfb446 | 842 | *flags = CIFSSEC_MUST_LANMAN; |
7a1ceba0 NC |
843 | else if (CIFSSEC_MUST_PLNTXT && |
844 | (*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT) | |
52dfb446 JL |
845 | *flags = CIFSSEC_MUST_PLNTXT; |
846 | ||
847 | *flags |= signflags; | |
848 | } | |
849 | ||
f984c7b9 AD |
850 | static ssize_t cifs_security_flags_proc_write(struct file *file, |
851 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 852 | { |
7715dad8 | 853 | int rc; |
bdc4bf6e SF |
854 | unsigned int flags; |
855 | char flags_string[12]; | |
28e2aed2 | 856 | bool bv; |
bdc4bf6e | 857 | |
221601c3 | 858 | if ((count < 1) || (count > 11)) |
3979877e | 859 | return -EINVAL; |
1da177e4 | 860 | |
bdc4bf6e | 861 | memset(flags_string, 0, 12); |
3979877e | 862 | |
221601c3 | 863 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 864 | return -EFAULT; |
3979877e | 865 | |
221601c3 | 866 | if (count < 3) { |
bdc4bf6e | 867 | /* single char or single char followed by null */ |
1404297e | 868 | if (strtobool(flags_string, &bv) == 0) { |
28e2aed2 | 869 | global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF; |
a013689d | 870 | return count; |
1404297e | 871 | } else if (!isdigit(flags_string[0])) { |
7715dad8 JL |
872 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", |
873 | flags_string); | |
a013689d SF |
874 | return -EINVAL; |
875 | } | |
bdc4bf6e | 876 | } |
bdc4bf6e | 877 | |
7715dad8 JL |
878 | /* else we have a number */ |
879 | rc = kstrtouint(flags_string, 0, &flags); | |
880 | if (rc) { | |
881 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", | |
882 | flags_string); | |
883 | return rc; | |
884 | } | |
bdc4bf6e | 885 | |
f96637be | 886 | cifs_dbg(FYI, "sec flags 0x%x\n", flags); |
bdc4bf6e | 887 | |
7715dad8 JL |
888 | if (flags == 0) { |
889 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string); | |
bdc4bf6e SF |
890 | return -EINVAL; |
891 | } | |
1da177e4 | 892 | |
221601c3 | 893 | if (flags & ~CIFSSEC_MASK) { |
7715dad8 | 894 | cifs_dbg(VFS, "Unsupported security flags: 0x%x\n", |
f96637be | 895 | flags & ~CIFSSEC_MASK); |
bdc4bf6e SF |
896 | return -EINVAL; |
897 | } | |
7715dad8 | 898 | |
52dfb446 JL |
899 | cifs_security_flags_handle_must_flags(&flags); |
900 | ||
bdc4bf6e | 901 | /* flags look ok - update the global security flags for cifs module */ |
04912d6a JL |
902 | global_secflags = flags; |
903 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 904 | /* requiring signing implies signing is allowed */ |
04912d6a | 905 | global_secflags |= CIFSSEC_MAY_SIGN; |
f96637be | 906 | cifs_dbg(FYI, "packet signing now required\n"); |
04912d6a | 907 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
f96637be | 908 | cifs_dbg(FYI, "packet signing disabled\n"); |
762e5ab7 SF |
909 | } |
910 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
911 | return count; |
912 | } | |
f984c7b9 AD |
913 | |
914 | static const struct file_operations cifs_security_flags_proc_fops = { | |
f984c7b9 AD |
915 | .open = cifs_security_flags_proc_open, |
916 | .read = seq_read, | |
917 | .llseek = seq_lseek, | |
918 | .release = single_release, | |
919 | .write = cifs_security_flags_proc_write, | |
920 | }; | |
90c81e0b | 921 | #else |
e086fcea | 922 | inline void cifs_proc_init(void) |
90c81e0b SF |
923 | { |
924 | } | |
925 | ||
e086fcea | 926 | inline void cifs_proc_clean(void) |
90c81e0b SF |
927 | { |
928 | } | |
929 | #endif /* PROC_FS */ |