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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
1da177e4 | 3 | * |
b8643e1b | 4 | * Copyright (C) International Business Machines Corp., 2000,2005 |
1da177e4 LT |
5 | * |
6 | * Modified by Steve French (sfrench@us.ibm.com) | |
1da177e4 LT |
7 | */ |
8 | #include <linux/fs.h> | |
9 | #include <linux/string.h> | |
10 | #include <linux/ctype.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/proc_fs.h> | |
7c0f6ba6 | 13 | #include <linux/uaccess.h> |
1da177e4 LT |
14 | #include "cifspdu.h" |
15 | #include "cifsglob.h" | |
16 | #include "cifsproto.h" | |
17 | #include "cifs_debug.h" | |
6c91d362 | 18 | #include "cifsfs.h" |
94b0595a | 19 | #include "fs_context.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 | |
20fab0da | 26 | #include "cifs_swn.h" |
1da177e4 LT |
27 | |
28 | void | |
29 | cifs_dump_mem(char *label, void *data, int length) | |
30 | { | |
0b456f04 | 31 | pr_debug("%s: dump of %d bytes of data at 0x%p\n", label, length, data); |
55d83e0d AS |
32 | print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 4, |
33 | data, length, true); | |
1da177e4 LT |
34 | } |
35 | ||
14547f7d | 36 | void cifs_dump_detail(void *buf, struct TCP_Server_Info *server) |
3979877e | 37 | { |
8aa26f3e | 38 | #ifdef CONFIG_CIFS_DEBUG2 |
0827f71b | 39 | struct smb_hdr *smb = buf; |
d4e4854f | 40 | |
f96637be JP |
41 | cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d\n", |
42 | smb->Command, smb->Status.CifsError, | |
43 | smb->Flags, smb->Flags2, smb->Mid, smb->Pid); | |
14547f7d | 44 | cifs_dbg(VFS, "smb buf %p len %u\n", smb, |
68ed1449 | 45 | server->ops->calc_smb_size(smb)); |
8aa26f3e | 46 | #endif /* CONFIG_CIFS_DEBUG2 */ |
3979877e SF |
47 | } |
48 | ||
ffdd6e4d | 49 | void cifs_dump_mids(struct TCP_Server_Info *server) |
3979877e | 50 | { |
8aa26f3e | 51 | #ifdef CONFIG_CIFS_DEBUG2 |
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"); |
d7d7a66a | 58 | spin_lock(&server->mid_lock); |
a506ccb4 | 59 | list_for_each_entry(mid_entry, &server->pending_mid_q, qhead) { |
f96637be JP |
60 | cifs_dbg(VFS, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu\n", |
61 | mid_entry->mid_state, | |
62 | le16_to_cpu(mid_entry->command), | |
63 | mid_entry->pid, | |
64 | mid_entry->callback_data, | |
65 | mid_entry->mid); | |
3979877e | 66 | #ifdef CONFIG_CIFS_STATS2 |
f96637be JP |
67 | cifs_dbg(VFS, "IsLarge: %d buf: %p time rcv: %ld now: %ld\n", |
68 | mid_entry->large_buf, | |
69 | mid_entry->resp_buf, | |
70 | mid_entry->when_received, | |
71 | jiffies); | |
3979877e | 72 | #endif /* STATS2 */ |
f96637be JP |
73 | cifs_dbg(VFS, "IsMult: %d IsEnd: %d\n", |
74 | mid_entry->multiRsp, mid_entry->multiEnd); | |
ad8b15f0 | 75 | if (mid_entry->resp_buf) { |
71992e62 | 76 | cifs_dump_detail(mid_entry->resp_buf, server); |
ad8b15f0 SF |
77 | cifs_dump_mem("existing buf: ", |
78 | mid_entry->resp_buf, 62); | |
3979877e SF |
79 | } |
80 | } | |
d7d7a66a | 81 | spin_unlock(&server->mid_lock); |
3979877e | 82 | #endif /* CONFIG_CIFS_DEBUG2 */ |
8aa26f3e | 83 | } |
3979877e | 84 | |
1da177e4 | 85 | #ifdef CONFIG_PROC_FS |
02cf5905 AA |
86 | static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon) |
87 | { | |
88 | __u32 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType); | |
89 | ||
90 | seq_printf(m, "%s Mounts: %d ", tcon->treeName, tcon->tc_count); | |
91 | if (tcon->nativeFileSystem) | |
92 | seq_printf(m, "Type: %s ", tcon->nativeFileSystem); | |
93 | seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x\n\tPathComponentMax: %d Status: %d", | |
94 | le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics), | |
95 | le32_to_cpu(tcon->fsAttrInfo.Attributes), | |
96 | le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength), | |
fdf59eb5 | 97 | tcon->status); |
02cf5905 AA |
98 | if (dev_type == FILE_DEVICE_DISK) |
99 | seq_puts(m, " type: DISK "); | |
100 | else if (dev_type == FILE_DEVICE_CD_ROM) | |
101 | seq_puts(m, " type: CDROM "); | |
102 | else | |
103 | seq_printf(m, " type: %d ", dev_type); | |
ab7b10cf SF |
104 | |
105 | seq_printf(m, "Serial Number: 0x%x", tcon->vol_serial_number); | |
106 | ||
ffd1ef1e SF |
107 | if ((tcon->seal) || |
108 | (tcon->ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) || | |
109 | (tcon->share_flags & SHI1005_FLAGS_ENCRYPT_DATA)) | |
ede2e520 | 110 | seq_printf(m, " Encrypted"); |
5c5a41be SF |
111 | if (tcon->nocase) |
112 | seq_printf(m, " nocase"); | |
ede2e520 SF |
113 | if (tcon->unix_ext) |
114 | seq_printf(m, " POSIX Extensions"); | |
02cf5905 AA |
115 | if (tcon->ses->server->ops->dump_share_caps) |
116 | tcon->ses->server->ops->dump_share_caps(m, tcon); | |
20fab0da SC |
117 | if (tcon->use_witness) |
118 | seq_puts(m, " Witness"); | |
52832252 SF |
119 | if (tcon->broken_sparse_sup) |
120 | seq_puts(m, " nosparse"); | |
02cf5905 AA |
121 | if (tcon->need_reconnect) |
122 | seq_puts(m, "\tDISCONNECTED "); | |
123 | seq_putc(m, '\n'); | |
124 | } | |
125 | ||
85150929 AA |
126 | static void |
127 | cifs_dump_channel(struct seq_file *m, int i, struct cifs_chan *chan) | |
128 | { | |
129 | struct TCP_Server_Info *server = chan->server; | |
130 | ||
03e9bb1a SP |
131 | seq_printf(m, "\n\n\t\tChannel: %d ConnectionId: 0x%llx" |
132 | "\n\t\tNumber of credits: %d Dialect 0x%x" | |
133 | "\n\t\tTCP status: %d Instance: %d" | |
134 | "\n\t\tLocal Users To Server: %d SecMode: 0x%x Req On Wire: %d" | |
135 | "\n\t\tIn Send: %d In MaxReq Wait: %d", | |
136 | i+1, server->conn_id, | |
85150929 AA |
137 | server->credits, |
138 | server->dialect, | |
139 | server->tcpStatus, | |
140 | server->reconnect_instance, | |
141 | server->srv_count, | |
142 | server->sec_mode, | |
143 | in_flight(server), | |
144 | atomic_read(&server->in_send), | |
145 | atomic_read(&server->num_waiters)); | |
146 | } | |
147 | ||
bc0fe8b2 AA |
148 | static void |
149 | cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface) | |
150 | { | |
151 | struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr; | |
152 | struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr; | |
153 | ||
35a90807 | 154 | seq_printf(m, "\tSpeed: %zu bps\n", iface->speed); |
bc0fe8b2 AA |
155 | seq_puts(m, "\t\tCapabilities: "); |
156 | if (iface->rdma_capable) | |
157 | seq_puts(m, "rdma "); | |
158 | if (iface->rss_capable) | |
159 | seq_puts(m, "rss "); | |
160 | seq_putc(m, '\n'); | |
161 | if (iface->sockaddr.ss_family == AF_INET) | |
162 | seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr); | |
163 | else if (iface->sockaddr.ss_family == AF_INET6) | |
164 | seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr); | |
aa45dadd SP |
165 | if (!iface->is_active) |
166 | seq_puts(m, "\t\t[for-cleanup]\n"); | |
bc0fe8b2 AA |
167 | } |
168 | ||
dfe33f9a SF |
169 | static int cifs_debug_files_proc_show(struct seq_file *m, void *v) |
170 | { | |
dfe33f9a SF |
171 | struct TCP_Server_Info *server; |
172 | struct cifs_ses *ses; | |
173 | struct cifs_tcon *tcon; | |
174 | struct cifsFileInfo *cfile; | |
175 | ||
176 | seq_puts(m, "# Version:1\n"); | |
177 | seq_puts(m, "# Format:\n"); | |
178 | seq_puts(m, "# <tree id> <persistent fid> <flags> <count> <pid> <uid>"); | |
179 | #ifdef CONFIG_CIFS_DEBUG2 | |
180 | seq_printf(m, " <filename> <mid>\n"); | |
181 | #else | |
182 | seq_printf(m, " <filename>\n"); | |
183 | #endif /* CIFS_DEBUG2 */ | |
184 | spin_lock(&cifs_tcp_ses_lock); | |
a506ccb4 | 185 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
9543c8ab EM |
186 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { |
187 | list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { | |
dfe33f9a | 188 | spin_lock(&tcon->open_file_lock); |
9543c8ab | 189 | list_for_each_entry(cfile, &tcon->openFileList, tlist) { |
dfe33f9a | 190 | seq_printf(m, |
b9e4666f | 191 | "0x%x 0x%llx 0x%x %d %d %d %pd", |
dfe33f9a SF |
192 | tcon->tid, |
193 | cfile->fid.persistent_fid, | |
194 | cfile->f_flags, | |
195 | cfile->count, | |
196 | cfile->pid, | |
197 | from_kuid(&init_user_ns, cfile->uid), | |
b9e4666f | 198 | cfile->dentry); |
dfe33f9a | 199 | #ifdef CONFIG_CIFS_DEBUG2 |
bf1bc694 | 200 | seq_printf(m, " %llu\n", cfile->fid.mid); |
dfe33f9a SF |
201 | #else |
202 | seq_printf(m, "\n"); | |
203 | #endif /* CIFS_DEBUG2 */ | |
204 | } | |
205 | spin_unlock(&tcon->open_file_lock); | |
206 | } | |
207 | } | |
208 | } | |
209 | spin_unlock(&cifs_tcp_ses_lock); | |
210 | seq_putc(m, '\n'); | |
211 | return 0; | |
212 | } | |
213 | ||
f984c7b9 | 214 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 215 | { |
ffdd6e4d | 216 | struct mid_q_entry *mid_entry; |
14fbf50d | 217 | struct TCP_Server_Info *server; |
96daf2b0 SF |
218 | struct cifs_ses *ses; |
219 | struct cifs_tcon *tcon; | |
aa45dadd | 220 | struct cifs_server_iface *iface; |
03e9bb1a | 221 | int c, i, j; |
1da177e4 | 222 | |
f984c7b9 | 223 | seq_puts(m, |
1da177e4 LT |
224 | "Display Internal CIFS Data Structures for Debugging\n" |
225 | "---------------------------------------------------\n"); | |
f984c7b9 | 226 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 227 | seq_printf(m, "Features:"); |
f579903e | 228 | #ifdef CONFIG_CIFS_DFS_UPCALL |
950132af | 229 | seq_printf(m, " DFS"); |
f579903e SJ |
230 | #endif |
231 | #ifdef CONFIG_CIFS_FSCACHE | |
950132af SF |
232 | seq_printf(m, ",FSCACHE"); |
233 | #endif | |
234 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
235 | seq_printf(m, ",SMB_DIRECT"); | |
236 | #endif | |
237 | #ifdef CONFIG_CIFS_STATS2 | |
238 | seq_printf(m, ",STATS2"); | |
d2586500 | 239 | #else |
950132af SF |
240 | seq_printf(m, ",STATS"); |
241 | #endif | |
242 | #ifdef CONFIG_CIFS_DEBUG2 | |
243 | seq_printf(m, ",DEBUG2"); | |
244 | #elif defined(CONFIG_CIFS_DEBUG) | |
245 | seq_printf(m, ",DEBUG"); | |
246 | #endif | |
247 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY | |
248 | seq_printf(m, ",ALLOW_INSECURE_LEGACY"); | |
f579903e | 249 | #endif |
f579903e | 250 | #ifdef CONFIG_CIFS_POSIX |
950132af | 251 | seq_printf(m, ",CIFS_POSIX"); |
f579903e SJ |
252 | #endif |
253 | #ifdef CONFIG_CIFS_UPCALL | |
950132af | 254 | seq_printf(m, ",UPCALL(SPNEGO)"); |
f579903e SJ |
255 | #endif |
256 | #ifdef CONFIG_CIFS_XATTR | |
950132af | 257 | seq_printf(m, ",XATTR"); |
ca40b714 | 258 | #endif |
950132af | 259 | seq_printf(m, ",ACL"); |
20fab0da SC |
260 | #ifdef CONFIG_CIFS_SWN_UPCALL |
261 | seq_puts(m, ",WITNESS"); | |
262 | #endif | |
f579903e | 263 | seq_putc(m, '\n'); |
a5f1a81f | 264 | seq_printf(m, "CIFSMaxBufSize: %d\n", CIFSMaxBufSize); |
f984c7b9 | 265 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
1da177e4 | 266 | |
03e9bb1a SP |
267 | seq_printf(m, "\nServers: "); |
268 | ||
269 | c = 0; | |
3f9bcca7 | 270 | spin_lock(&cifs_tcp_ses_lock); |
a506ccb4 | 271 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
0f2b305a SP |
272 | /* channel info will be printed as a part of sessions below */ |
273 | if (CIFS_SERVER_IS_CHAN(server)) | |
03e9bb1a SP |
274 | continue; |
275 | ||
276 | c++; | |
277 | seq_printf(m, "\n%d) ConnectionId: 0x%llx ", | |
278 | c, server->conn_id); | |
279 | ||
40f077a0 SF |
280 | if (server->hostname) |
281 | seq_printf(m, "Hostname: %s ", server->hostname); | |
08a3b969 LL |
282 | #ifdef CONFIG_CIFS_SMB_DIRECT |
283 | if (!server->rdma) | |
284 | goto skip_rdma; | |
285 | ||
14cc639c LL |
286 | if (!server->smbd_conn) { |
287 | seq_printf(m, "\nSMBDirect transport not available"); | |
288 | goto skip_rdma; | |
289 | } | |
290 | ||
08a3b969 LL |
291 | seq_printf(m, "\nSMBDirect (in hex) protocol version: %x " |
292 | "transport status: %x", | |
293 | server->smbd_conn->protocol, | |
294 | server->smbd_conn->transport_status); | |
295 | seq_printf(m, "\nConn receive_credit_max: %x " | |
296 | "send_credit_target: %x max_send_size: %x", | |
297 | server->smbd_conn->receive_credit_max, | |
298 | server->smbd_conn->send_credit_target, | |
299 | server->smbd_conn->max_send_size); | |
300 | seq_printf(m, "\nConn max_fragmented_recv_size: %x " | |
301 | "max_fragmented_send_size: %x max_receive_size:%x", | |
302 | server->smbd_conn->max_fragmented_recv_size, | |
303 | server->smbd_conn->max_fragmented_send_size, | |
304 | server->smbd_conn->max_receive_size); | |
305 | seq_printf(m, "\nConn keep_alive_interval: %x " | |
306 | "max_readwrite_size: %x rdma_readwrite_threshold: %x", | |
307 | server->smbd_conn->keep_alive_interval, | |
308 | server->smbd_conn->max_readwrite_size, | |
309 | server->smbd_conn->rdma_readwrite_threshold); | |
310 | seq_printf(m, "\nDebug count_get_receive_buffer: %x " | |
311 | "count_put_receive_buffer: %x count_send_empty: %x", | |
312 | server->smbd_conn->count_get_receive_buffer, | |
313 | server->smbd_conn->count_put_receive_buffer, | |
314 | server->smbd_conn->count_send_empty); | |
315 | seq_printf(m, "\nRead Queue count_reassembly_queue: %x " | |
316 | "count_enqueue_reassembly_queue: %x " | |
317 | "count_dequeue_reassembly_queue: %x " | |
318 | "fragment_reassembly_remaining: %x " | |
319 | "reassembly_data_length: %x " | |
320 | "reassembly_queue_length: %x", | |
321 | server->smbd_conn->count_reassembly_queue, | |
322 | server->smbd_conn->count_enqueue_reassembly_queue, | |
323 | server->smbd_conn->count_dequeue_reassembly_queue, | |
324 | server->smbd_conn->fragment_reassembly_remaining, | |
325 | server->smbd_conn->reassembly_data_length, | |
326 | server->smbd_conn->reassembly_queue_length); | |
327 | seq_printf(m, "\nCurrent Credits send_credits: %x " | |
328 | "receive_credits: %x receive_credit_target: %x", | |
329 | atomic_read(&server->smbd_conn->send_credits), | |
330 | atomic_read(&server->smbd_conn->receive_credits), | |
331 | server->smbd_conn->receive_credit_target); | |
072a14ec LL |
332 | seq_printf(m, "\nPending send_pending: %x ", |
333 | atomic_read(&server->smbd_conn->send_pending)); | |
08a3b969 LL |
334 | seq_printf(m, "\nReceive buffers count_receive_queue: %x " |
335 | "count_empty_packet_queue: %x", | |
336 | server->smbd_conn->count_receive_queue, | |
337 | server->smbd_conn->count_empty_packet_queue); | |
338 | seq_printf(m, "\nMR responder_resources: %x " | |
339 | "max_frmr_depth: %x mr_type: %x", | |
340 | server->smbd_conn->responder_resources, | |
341 | server->smbd_conn->max_frmr_depth, | |
342 | server->smbd_conn->mr_type); | |
343 | seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x", | |
344 | atomic_read(&server->smbd_conn->mr_ready_count), | |
345 | atomic_read(&server->smbd_conn->mr_used_count)); | |
346 | skip_rdma: | |
347 | #endif | |
ede2e520 SF |
348 | seq_printf(m, "\nNumber of credits: %d Dialect 0x%x", |
349 | server->credits, server->dialect); | |
26ea888f SF |
350 | if (server->compress_algorithm == SMB3_COMPRESS_LZNT1) |
351 | seq_printf(m, " COMPRESS_LZNT1"); | |
352 | else if (server->compress_algorithm == SMB3_COMPRESS_LZ77) | |
353 | seq_printf(m, " COMPRESS_LZ77"); | |
354 | else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF) | |
355 | seq_printf(m, " COMPRESS_LZ77_HUFF"); | |
ede2e520 SF |
356 | if (server->sign) |
357 | seq_printf(m, " signed"); | |
fcef0db6 SF |
358 | if (server->posix_ext_supported) |
359 | seq_printf(m, " posix"); | |
c9f1c19c SP |
360 | if (server->nosharesock) |
361 | seq_printf(m, " nosharesock"); | |
0fdfef9a | 362 | |
03e9bb1a SP |
363 | if (server->rdma) |
364 | seq_printf(m, "\nRDMA "); | |
365 | seq_printf(m, "\nTCP status: %d Instance: %d" | |
366 | "\nLocal Users To Server: %d SecMode: 0x%x Req On Wire: %d", | |
367 | server->tcpStatus, | |
368 | server->reconnect_instance, | |
369 | server->srv_count, | |
370 | server->sec_mode, in_flight(server)); | |
371 | ||
372 | seq_printf(m, "\nIn Send: %d In MaxReq Wait: %d", | |
373 | atomic_read(&server->in_send), | |
374 | atomic_read(&server->num_waiters)); | |
375 | ||
376 | seq_printf(m, "\n\n\tSessions: "); | |
377 | i = 0; | |
9543c8ab | 378 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { |
03e9bb1a | 379 | i++; |
14fbf50d JL |
380 | if ((ses->serverDomain == NULL) || |
381 | (ses->serverOS == NULL) || | |
382 | (ses->serverNOS == NULL)) { | |
40f077a0 | 383 | seq_printf(m, "\n\t%d) Address: %s Uses: %d Capability: 0x%x\tSession Status: %d ", |
b438fcf1 | 384 | i, ses->ip_addr, ses->ses_count, |
dd3cd870 | 385 | ses->capabilities, ses->ses_status); |
1fa089ec | 386 | if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) |
03e9bb1a | 387 | seq_printf(m, "Guest "); |
1fa089ec | 388 | else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) |
03e9bb1a | 389 | seq_printf(m, "Anonymous "); |
14fbf50d JL |
390 | } else { |
391 | seq_printf(m, | |
03e9bb1a SP |
392 | "\n\t%d) Name: %s Domain: %s Uses: %d OS: %s " |
393 | "\n\tNOS: %s\tCapability: 0x%x" | |
394 | "\n\tSMB session status: %d ", | |
b438fcf1 | 395 | i, ses->ip_addr, ses->serverDomain, |
14fbf50d | 396 | ses->ses_count, ses->serverOS, ses->serverNOS, |
dd3cd870 | 397 | ses->capabilities, ses->ses_status); |
14fbf50d | 398 | } |
8e84a61a | 399 | |
03e9bb1a | 400 | seq_printf(m, "\n\tSecurity type: %s ", |
0b0430c6 | 401 | get_security_type_str(server->ops->select_sectype(server, ses->sectype))); |
8e84a61a | 402 | |
b63a9de0 SF |
403 | /* dump session id helpful for use with network trace */ |
404 | seq_printf(m, " SessionId: 0x%llx", ses->Suid); | |
ffd1ef1e SF |
405 | if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) |
406 | seq_puts(m, " encrypted"); | |
407 | if (ses->sign) | |
408 | seq_puts(m, " signed"); | |
131afd0b | 409 | |
aadd69ca PA |
410 | seq_printf(m, "\n\tUser: %d Cred User: %d", |
411 | from_kuid(&init_user_ns, ses->linux_uid), | |
412 | from_kuid(&init_user_ns, ses->cred_uid)); | |
413 | ||
724244cd | 414 | spin_lock(&ses->chan_lock); |
66eb0c6e SP |
415 | if (CIFS_CHAN_NEEDS_RECONNECT(ses, 0)) |
416 | seq_puts(m, "\tPrimary channel: DISCONNECTED "); | |
5752bf64 SP |
417 | if (CIFS_CHAN_IN_RECONNECT(ses, 0)) |
418 | seq_puts(m, "\t[RECONNECTING] "); | |
66eb0c6e | 419 | |
85150929 | 420 | if (ses->chan_count > 1) { |
03e9bb1a | 421 | seq_printf(m, "\n\n\tExtra Channels: %zu ", |
85150929 | 422 | ses->chan_count-1); |
66eb0c6e | 423 | for (j = 1; j < ses->chan_count; j++) { |
85150929 | 424 | cifs_dump_channel(m, j, &ses->chans[j]); |
66eb0c6e SP |
425 | if (CIFS_CHAN_NEEDS_RECONNECT(ses, j)) |
426 | seq_puts(m, "\tDISCONNECTED "); | |
5752bf64 SP |
427 | if (CIFS_CHAN_IN_RECONNECT(ses, j)) |
428 | seq_puts(m, "\t[RECONNECTING] "); | |
66eb0c6e | 429 | } |
85150929 | 430 | } |
724244cd | 431 | spin_unlock(&ses->chan_lock); |
85150929 | 432 | |
03e9bb1a | 433 | seq_puts(m, "\n\n\tShares: "); |
f1987b44 | 434 | j = 0; |
02cf5905 AA |
435 | |
436 | seq_printf(m, "\n\t%d) IPC: ", j); | |
437 | if (ses->tcon_ipc) | |
438 | cifs_debug_tcon(m, ses->tcon_ipc); | |
439 | else | |
440 | seq_puts(m, "none\n"); | |
441 | ||
9543c8ab | 442 | list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { |
f1987b44 | 443 | ++j; |
02cf5905 AA |
444 | seq_printf(m, "\n\t%d) ", j); |
445 | cifs_debug_tcon(m, tcon); | |
f1987b44 JL |
446 | } |
447 | ||
bc0fe8b2 | 448 | spin_lock(&ses->iface_lock); |
115d5d28 | 449 | if (ses->iface_count) |
03e9bb1a | 450 | seq_printf(m, "\n\n\tServer interfaces: %zu", |
115d5d28 | 451 | ses->iface_count); |
aa45dadd SP |
452 | j = 0; |
453 | list_for_each_entry(iface, &ses->iface_list, | |
454 | iface_head) { | |
455 | seq_printf(m, "\n\t%d)", ++j); | |
85150929 AA |
456 | cifs_dump_iface(m, iface); |
457 | if (is_ses_using_iface(ses, iface)) | |
458 | seq_puts(m, "\t\t[CONNECTED]\n"); | |
bc0fe8b2 AA |
459 | } |
460 | spin_unlock(&ses->iface_lock); | |
1da177e4 | 461 | } |
03e9bb1a SP |
462 | if (i == 0) |
463 | seq_printf(m, "\n\t\t[NONE]"); | |
464 | ||
465 | seq_puts(m, "\n\n\tMIDs: "); | |
d7d7a66a | 466 | spin_lock(&server->mid_lock); |
9543c8ab | 467 | list_for_each_entry(mid_entry, &server->pending_mid_q, qhead) { |
03e9bb1a SP |
468 | seq_printf(m, "\n\tState: %d com: %d pid:" |
469 | " %d cbdata: %p mid %llu\n", | |
470 | mid_entry->mid_state, | |
471 | le16_to_cpu(mid_entry->command), | |
472 | mid_entry->pid, | |
473 | mid_entry->callback_data, | |
474 | mid_entry->mid); | |
475 | } | |
d7d7a66a | 476 | spin_unlock(&server->mid_lock); |
03e9bb1a | 477 | seq_printf(m, "\n--\n"); |
1da177e4 | 478 | } |
03e9bb1a SP |
479 | if (c == 0) |
480 | seq_printf(m, "\n\t[NONE]"); | |
481 | ||
3f9bcca7 | 482 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 483 | seq_putc(m, '\n'); |
20fab0da | 484 | cifs_swn_dump(m); |
b7fd0fa0 | 485 | |
1da177e4 | 486 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
487 | return 0; |
488 | } | |
1da177e4 | 489 | |
f984c7b9 AD |
490 | static ssize_t cifs_stats_proc_write(struct file *file, |
491 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 492 | { |
28e2aed2 | 493 | bool bv; |
221601c3 | 494 | int rc; |
f1987b44 | 495 | struct TCP_Server_Info *server; |
96daf2b0 SF |
496 | struct cifs_ses *ses; |
497 | struct cifs_tcon *tcon; | |
1047abc1 | 498 | |
1404297e KC |
499 | rc = kstrtobool_from_user(buffer, count, &bv); |
500 | if (rc == 0) { | |
4498eed5 | 501 | #ifdef CONFIG_CIFS_STATS2 |
468d6779 SF |
502 | int i; |
503 | ||
c2c17ddb SF |
504 | atomic_set(&total_buf_alloc_count, 0); |
505 | atomic_set(&total_small_buf_alloc_count, 0); | |
4498eed5 | 506 | #endif /* CONFIG_CIFS_STATS2 */ |
2c887635 SF |
507 | atomic_set(&tcpSesReconnectCount, 0); |
508 | atomic_set(&tconInfoReconnectCount, 0); | |
509 | ||
c281bc0c SF |
510 | spin_lock(&GlobalMid_Lock); |
511 | GlobalMaxActiveXid = 0; | |
512 | GlobalCurrentXid = 0; | |
513 | spin_unlock(&GlobalMid_Lock); | |
3f9bcca7 | 514 | spin_lock(&cifs_tcp_ses_lock); |
9543c8ab | 515 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
1b63f184 | 516 | server->max_in_flight = 0; |
468d6779 | 517 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
518 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { |
519 | atomic_set(&server->num_cmds[i], 0); | |
468d6779 | 520 | atomic_set(&server->smb2slowcmd[i], 0); |
433b8dd7 SF |
521 | server->time_per_cmd[i] = 0; |
522 | server->slowest_cmd[i] = 0; | |
523 | server->fastest_cmd[0] = 0; | |
524 | } | |
468d6779 | 525 | #endif /* CONFIG_CIFS_STATS2 */ |
9543c8ab EM |
526 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { |
527 | list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { | |
f1987b44 | 528 | atomic_set(&tcon->num_smbs_sent, 0); |
c281bc0c SF |
529 | spin_lock(&tcon->stat_lock); |
530 | tcon->bytes_read = 0; | |
531 | tcon->bytes_written = 0; | |
532 | spin_unlock(&tcon->stat_lock); | |
44c58186 PS |
533 | if (server->ops->clear_stats) |
534 | server->ops->clear_stats(tcon); | |
f1987b44 JL |
535 | } |
536 | } | |
1047abc1 | 537 | } |
3f9bcca7 | 538 | spin_unlock(&cifs_tcp_ses_lock); |
1404297e KC |
539 | } else { |
540 | return rc; | |
1047abc1 SF |
541 | } |
542 | ||
221601c3 | 543 | return count; |
1047abc1 SF |
544 | } |
545 | ||
f984c7b9 | 546 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 547 | { |
f984c7b9 | 548 | int i; |
468d6779 SF |
549 | #ifdef CONFIG_CIFS_STATS2 |
550 | int j; | |
551 | #endif /* STATS2 */ | |
f1987b44 | 552 | struct TCP_Server_Info *server; |
96daf2b0 SF |
553 | struct cifs_ses *ses; |
554 | struct cifs_tcon *tcon; | |
1da177e4 | 555 | |
468d6779 | 556 | seq_printf(m, "Resources in use\nCIFS Session: %d\n", |
1da177e4 | 557 | sesInfoAllocCount.counter); |
f984c7b9 | 558 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 559 | tconInfoAllocCount.counter); |
f984c7b9 | 560 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
c2c17ddb | 561 | buf_alloc_count.counter, |
b8643e1b | 562 | cifs_min_rcv + tcpSesAllocCount.counter); |
f984c7b9 | 563 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
c2c17ddb | 564 | small_buf_alloc_count.counter, cifs_min_small); |
07475ffb | 565 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 566 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
c2c17ddb SF |
567 | atomic_read(&total_buf_alloc_count), |
568 | atomic_read(&total_small_buf_alloc_count)); | |
07475ffb SF |
569 | #endif /* CONFIG_CIFS_STATS2 */ |
570 | ||
c2c17ddb | 571 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&mid_count)); |
f984c7b9 | 572 | seq_printf(m, |
1da177e4 | 573 | "\n%d session %d share reconnects\n", |
221601c3 | 574 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 575 | |
f984c7b9 | 576 | seq_printf(m, |
1da177e4 | 577 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 578 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
579 | |
580 | i = 0; | |
3f9bcca7 | 581 | spin_lock(&cifs_tcp_ses_lock); |
a506ccb4 | 582 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
1b63f184 | 583 | seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight); |
468d6779 | 584 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
585 | seq_puts(m, "\nTotal time spent processing by command. Time "); |
586 | seq_printf(m, "units are jiffies (%d per second)\n", HZ); | |
587 | seq_puts(m, " SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n"); | |
588 | seq_puts(m, " --------\t------\t----------\t-------\t-------\n"); | |
589 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) | |
590 | seq_printf(m, " %d\t\t%d\t%llu\t\t%u\t%u\n", j, | |
591 | atomic_read(&server->num_cmds[j]), | |
592 | server->time_per_cmd[j], | |
593 | server->fastest_cmd[j], | |
594 | server->slowest_cmd[j]); | |
468d6779 SF |
595 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) |
596 | if (atomic_read(&server->smb2slowcmd[j])) | |
433b8dd7 | 597 | seq_printf(m, " %d slow responses from %s for command %d\n", |
468d6779 SF |
598 | atomic_read(&server->smb2slowcmd[j]), |
599 | server->hostname, j); | |
600 | #endif /* STATS2 */ | |
9543c8ab EM |
601 | list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { |
602 | list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { | |
f1987b44 JL |
603 | i++; |
604 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
605 | if (tcon->need_reconnect) | |
606 | seq_puts(m, "\tDISCONNECTED "); | |
44c58186 PS |
607 | seq_printf(m, "\nSMBs: %d", |
608 | atomic_read(&tcon->num_smbs_sent)); | |
609 | if (server->ops->print_stats) | |
610 | server->ops->print_stats(m, tcon); | |
f1987b44 JL |
611 | } |
612 | } | |
1da177e4 | 613 | } |
3f9bcca7 | 614 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 615 | |
f984c7b9 AD |
616 | seq_putc(m, '\n'); |
617 | return 0; | |
618 | } | |
221601c3 | 619 | |
f984c7b9 AD |
620 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
621 | { | |
622 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 623 | } |
f984c7b9 | 624 | |
97a32539 AD |
625 | static const struct proc_ops cifs_stats_proc_ops = { |
626 | .proc_open = cifs_stats_proc_open, | |
627 | .proc_read = seq_read, | |
628 | .proc_lseek = seq_lseek, | |
629 | .proc_release = single_release, | |
630 | .proc_write = cifs_stats_proc_write, | |
f984c7b9 | 631 | }; |
1da177e4 | 632 | |
d8ec913b LL |
633 | #ifdef CONFIG_CIFS_SMB_DIRECT |
634 | #define PROC_FILE_DEFINE(name) \ | |
635 | static ssize_t name##_write(struct file *file, const char __user *buffer, \ | |
636 | size_t count, loff_t *ppos) \ | |
637 | { \ | |
638 | int rc; \ | |
639 | rc = kstrtoint_from_user(buffer, count, 10, & name); \ | |
640 | if (rc) \ | |
641 | return rc; \ | |
642 | return count; \ | |
643 | } \ | |
644 | static int name##_proc_show(struct seq_file *m, void *v) \ | |
645 | { \ | |
646 | seq_printf(m, "%d\n", name ); \ | |
647 | return 0; \ | |
648 | } \ | |
649 | static int name##_open(struct inode *inode, struct file *file) \ | |
650 | { \ | |
651 | return single_open(file, name##_proc_show, NULL); \ | |
652 | } \ | |
653 | \ | |
97a32539 AD |
654 | static const struct proc_ops cifs_##name##_proc_fops = { \ |
655 | .proc_open = name##_open, \ | |
656 | .proc_read = seq_read, \ | |
657 | .proc_lseek = seq_lseek, \ | |
658 | .proc_release = single_release, \ | |
659 | .proc_write = name##_write, \ | |
d8ec913b LL |
660 | } |
661 | ||
d8ec913b LL |
662 | PROC_FILE_DEFINE(rdma_readwrite_threshold); |
663 | PROC_FILE_DEFINE(smbd_max_frmr_depth); | |
664 | PROC_FILE_DEFINE(smbd_keep_alive_interval); | |
665 | PROC_FILE_DEFINE(smbd_max_receive_size); | |
666 | PROC_FILE_DEFINE(smbd_max_fragmented_recv_size); | |
667 | PROC_FILE_DEFINE(smbd_max_send_size); | |
668 | PROC_FILE_DEFINE(smbd_send_credit_target); | |
669 | PROC_FILE_DEFINE(smbd_receive_credit_max); | |
670 | #endif | |
671 | ||
1da177e4 | 672 | static struct proc_dir_entry *proc_fs_cifs; |
97a32539 AD |
673 | static const struct proc_ops cifsFYI_proc_ops; |
674 | static const struct proc_ops cifs_lookup_cache_proc_ops; | |
675 | static const struct proc_ops traceSMB_proc_ops; | |
676 | static const struct proc_ops cifs_security_flags_proc_ops; | |
677 | static const struct proc_ops cifs_linux_ext_proc_ops; | |
94b0595a | 678 | static const struct proc_ops cifs_mount_params_proc_ops; |
1da177e4 LT |
679 | |
680 | void | |
681 | cifs_proc_init(void) | |
682 | { | |
36a5aeb8 | 683 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
684 | if (proc_fs_cifs == NULL) |
685 | return; | |
686 | ||
3f3942ac CH |
687 | proc_create_single("DebugData", 0, proc_fs_cifs, |
688 | cifs_debug_data_proc_show); | |
1da177e4 | 689 | |
dfe33f9a SF |
690 | proc_create_single("open_files", 0400, proc_fs_cifs, |
691 | cifs_debug_files_proc_show); | |
692 | ||
97a32539 AD |
693 | proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_ops); |
694 | proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_ops); | |
695 | proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_ops); | |
6539e7f3 | 696 | proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs, |
97a32539 | 697 | &cifs_linux_ext_proc_ops); |
6539e7f3 | 698 | proc_create("SecurityFlags", 0644, proc_fs_cifs, |
97a32539 | 699 | &cifs_security_flags_proc_ops); |
6539e7f3 | 700 | proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, |
97a32539 | 701 | &cifs_lookup_cache_proc_ops); |
54be1f6c | 702 | |
94b0595a AA |
703 | proc_create("mount_params", 0444, proc_fs_cifs, &cifs_mount_params_proc_ops); |
704 | ||
54be1f6c | 705 | #ifdef CONFIG_CIFS_DFS_UPCALL |
97a32539 | 706 | proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_ops); |
54be1f6c PA |
707 | #endif |
708 | ||
d8ec913b | 709 | #ifdef CONFIG_CIFS_SMB_DIRECT |
6539e7f3 | 710 | proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs, |
d8ec913b | 711 | &cifs_rdma_readwrite_threshold_proc_fops); |
6539e7f3 | 712 | proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs, |
d8ec913b | 713 | &cifs_smbd_max_frmr_depth_proc_fops); |
6539e7f3 | 714 | proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs, |
d8ec913b | 715 | &cifs_smbd_keep_alive_interval_proc_fops); |
6539e7f3 | 716 | proc_create("smbd_max_receive_size", 0644, proc_fs_cifs, |
d8ec913b | 717 | &cifs_smbd_max_receive_size_proc_fops); |
6539e7f3 | 718 | proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs, |
d8ec913b | 719 | &cifs_smbd_max_fragmented_recv_size_proc_fops); |
6539e7f3 | 720 | proc_create("smbd_max_send_size", 0644, proc_fs_cifs, |
d8ec913b | 721 | &cifs_smbd_max_send_size_proc_fops); |
6539e7f3 | 722 | proc_create("smbd_send_credit_target", 0644, proc_fs_cifs, |
d8ec913b | 723 | &cifs_smbd_send_credit_target_proc_fops); |
6539e7f3 | 724 | proc_create("smbd_receive_credit_max", 0644, proc_fs_cifs, |
d8ec913b LL |
725 | &cifs_smbd_receive_credit_max_proc_fops); |
726 | #endif | |
1da177e4 LT |
727 | } |
728 | ||
729 | void | |
730 | cifs_proc_clean(void) | |
731 | { | |
732 | if (proc_fs_cifs == NULL) | |
733 | return; | |
734 | ||
735 | remove_proc_entry("DebugData", proc_fs_cifs); | |
dfe33f9a | 736 | remove_proc_entry("open_files", proc_fs_cifs); |
1da177e4 LT |
737 | remove_proc_entry("cifsFYI", proc_fs_cifs); |
738 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
1da177e4 | 739 | remove_proc_entry("Stats", proc_fs_cifs); |
221601c3 | 740 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 741 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 742 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
94b0595a | 743 | remove_proc_entry("mount_params", proc_fs_cifs); |
54be1f6c PA |
744 | |
745 | #ifdef CONFIG_CIFS_DFS_UPCALL | |
746 | remove_proc_entry("dfscache", proc_fs_cifs); | |
747 | #endif | |
d8ec913b LL |
748 | #ifdef CONFIG_CIFS_SMB_DIRECT |
749 | remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs); | |
750 | remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs); | |
751 | remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs); | |
752 | remove_proc_entry("smbd_max_receive_size", proc_fs_cifs); | |
753 | remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs); | |
754 | remove_proc_entry("smbd_max_send_size", proc_fs_cifs); | |
755 | remove_proc_entry("smbd_send_credit_target", proc_fs_cifs); | |
756 | remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs); | |
757 | #endif | |
36a5aeb8 | 758 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
759 | } |
760 | ||
f984c7b9 | 761 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 762 | { |
f984c7b9 AD |
763 | seq_printf(m, "%d\n", cifsFYI); |
764 | return 0; | |
765 | } | |
1da177e4 | 766 | |
f984c7b9 AD |
767 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
768 | { | |
769 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 770 | } |
f984c7b9 AD |
771 | |
772 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
773 | size_t count, loff_t *ppos) | |
1da177e4 | 774 | { |
1404297e | 775 | char c[2] = { '\0' }; |
28e2aed2 | 776 | bool bv; |
1da177e4 LT |
777 | int rc; |
778 | ||
1404297e | 779 | rc = get_user(c[0], buffer); |
1da177e4 LT |
780 | if (rc) |
781 | return rc; | |
1404297e | 782 | if (strtobool(c, &bv) == 0) |
28e2aed2 | 783 | cifsFYI = bv; |
1404297e KC |
784 | else if ((c[0] > '1') && (c[0] <= '9')) |
785 | cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */ | |
25ad1cbd RS |
786 | else |
787 | return -EINVAL; | |
1da177e4 LT |
788 | |
789 | return count; | |
790 | } | |
791 | ||
97a32539 AD |
792 | static const struct proc_ops cifsFYI_proc_ops = { |
793 | .proc_open = cifsFYI_proc_open, | |
794 | .proc_read = seq_read, | |
795 | .proc_lseek = seq_lseek, | |
796 | .proc_release = single_release, | |
797 | .proc_write = cifsFYI_proc_write, | |
f984c7b9 | 798 | }; |
1da177e4 | 799 | |
f984c7b9 AD |
800 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
801 | { | |
802 | seq_printf(m, "%d\n", linuxExtEnabled); | |
803 | return 0; | |
804 | } | |
1da177e4 | 805 | |
f984c7b9 AD |
806 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
807 | { | |
808 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 809 | } |
f984c7b9 AD |
810 | |
811 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
812 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 813 | { |
221601c3 SF |
814 | int rc; |
815 | ||
1404297e | 816 | rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled); |
221601c3 SF |
817 | if (rc) |
818 | return rc; | |
28e2aed2 | 819 | |
221601c3 | 820 | return count; |
1da177e4 LT |
821 | } |
822 | ||
97a32539 AD |
823 | static const struct proc_ops cifs_linux_ext_proc_ops = { |
824 | .proc_open = cifs_linux_ext_proc_open, | |
825 | .proc_read = seq_read, | |
826 | .proc_lseek = seq_lseek, | |
827 | .proc_release = single_release, | |
828 | .proc_write = cifs_linux_ext_proc_write, | |
f984c7b9 | 829 | }; |
1da177e4 | 830 | |
f984c7b9 | 831 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 832 | { |
f984c7b9 AD |
833 | seq_printf(m, "%d\n", lookupCacheEnabled); |
834 | return 0; | |
835 | } | |
1da177e4 | 836 | |
f984c7b9 AD |
837 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
838 | { | |
839 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 840 | } |
f984c7b9 AD |
841 | |
842 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
843 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 844 | { |
1da177e4 LT |
845 | int rc; |
846 | ||
1404297e | 847 | rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled); |
1da177e4 LT |
848 | if (rc) |
849 | return rc; | |
28e2aed2 | 850 | |
1da177e4 LT |
851 | return count; |
852 | } | |
1da177e4 | 853 | |
97a32539 AD |
854 | static const struct proc_ops cifs_lookup_cache_proc_ops = { |
855 | .proc_open = cifs_lookup_cache_proc_open, | |
856 | .proc_read = seq_read, | |
857 | .proc_lseek = seq_lseek, | |
858 | .proc_release = single_release, | |
859 | .proc_write = cifs_lookup_cache_proc_write, | |
f984c7b9 | 860 | }; |
1da177e4 | 861 | |
f984c7b9 AD |
862 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
863 | { | |
864 | seq_printf(m, "%d\n", traceSMB); | |
865 | return 0; | |
866 | } | |
1da177e4 | 867 | |
f984c7b9 AD |
868 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
869 | { | |
870 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 871 | } |
f984c7b9 AD |
872 | |
873 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
874 | size_t count, loff_t *ppos) | |
1da177e4 | 875 | { |
1da177e4 LT |
876 | int rc; |
877 | ||
1404297e | 878 | rc = kstrtobool_from_user(buffer, count, &traceSMB); |
1da177e4 LT |
879 | if (rc) |
880 | return rc; | |
28e2aed2 | 881 | |
1da177e4 LT |
882 | return count; |
883 | } | |
884 | ||
97a32539 AD |
885 | static const struct proc_ops traceSMB_proc_ops = { |
886 | .proc_open = traceSMB_proc_open, | |
887 | .proc_read = seq_read, | |
888 | .proc_lseek = seq_lseek, | |
889 | .proc_release = single_release, | |
890 | .proc_write = traceSMB_proc_write, | |
f984c7b9 | 891 | }; |
1da177e4 | 892 | |
f984c7b9 AD |
893 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
894 | { | |
04912d6a | 895 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
896 | return 0; |
897 | } | |
1da177e4 | 898 | |
f984c7b9 AD |
899 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
900 | { | |
901 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 902 | } |
f984c7b9 | 903 | |
52dfb446 JL |
904 | /* |
905 | * Ensure that if someone sets a MUST flag, that we disable all other MAY | |
906 | * flags except for the ones corresponding to the given MUST flag. If there are | |
907 | * multiple MUST flags, then try to prefer more secure ones. | |
908 | */ | |
909 | static void | |
910 | cifs_security_flags_handle_must_flags(unsigned int *flags) | |
911 | { | |
912 | unsigned int signflags = *flags & CIFSSEC_MUST_SIGN; | |
913 | ||
914 | if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
915 | *flags = CIFSSEC_MUST_KRB5; | |
916 | else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
917 | *flags = CIFSSEC_MUST_NTLMSSP; | |
918 | else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) | |
919 | *flags = CIFSSEC_MUST_NTLMV2; | |
52dfb446 JL |
920 | |
921 | *flags |= signflags; | |
922 | } | |
923 | ||
f984c7b9 AD |
924 | static ssize_t cifs_security_flags_proc_write(struct file *file, |
925 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 926 | { |
7715dad8 | 927 | int rc; |
bdc4bf6e SF |
928 | unsigned int flags; |
929 | char flags_string[12]; | |
28e2aed2 | 930 | bool bv; |
bdc4bf6e | 931 | |
221601c3 | 932 | if ((count < 1) || (count > 11)) |
3979877e | 933 | return -EINVAL; |
1da177e4 | 934 | |
bdc4bf6e | 935 | memset(flags_string, 0, 12); |
3979877e | 936 | |
221601c3 | 937 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 938 | return -EFAULT; |
3979877e | 939 | |
221601c3 | 940 | if (count < 3) { |
bdc4bf6e | 941 | /* single char or single char followed by null */ |
1404297e | 942 | if (strtobool(flags_string, &bv) == 0) { |
28e2aed2 | 943 | global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF; |
a013689d | 944 | return count; |
1404297e | 945 | } else if (!isdigit(flags_string[0])) { |
7715dad8 JL |
946 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", |
947 | flags_string); | |
a013689d SF |
948 | return -EINVAL; |
949 | } | |
bdc4bf6e | 950 | } |
bdc4bf6e | 951 | |
7715dad8 JL |
952 | /* else we have a number */ |
953 | rc = kstrtouint(flags_string, 0, &flags); | |
954 | if (rc) { | |
955 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", | |
956 | flags_string); | |
957 | return rc; | |
958 | } | |
bdc4bf6e | 959 | |
f96637be | 960 | cifs_dbg(FYI, "sec flags 0x%x\n", flags); |
bdc4bf6e | 961 | |
7715dad8 JL |
962 | if (flags == 0) { |
963 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string); | |
bdc4bf6e SF |
964 | return -EINVAL; |
965 | } | |
1da177e4 | 966 | |
221601c3 | 967 | if (flags & ~CIFSSEC_MASK) { |
7715dad8 | 968 | cifs_dbg(VFS, "Unsupported security flags: 0x%x\n", |
f96637be | 969 | flags & ~CIFSSEC_MASK); |
bdc4bf6e SF |
970 | return -EINVAL; |
971 | } | |
7715dad8 | 972 | |
52dfb446 JL |
973 | cifs_security_flags_handle_must_flags(&flags); |
974 | ||
bdc4bf6e | 975 | /* flags look ok - update the global security flags for cifs module */ |
04912d6a JL |
976 | global_secflags = flags; |
977 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 978 | /* requiring signing implies signing is allowed */ |
04912d6a | 979 | global_secflags |= CIFSSEC_MAY_SIGN; |
f96637be | 980 | cifs_dbg(FYI, "packet signing now required\n"); |
04912d6a | 981 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
f96637be | 982 | cifs_dbg(FYI, "packet signing disabled\n"); |
762e5ab7 SF |
983 | } |
984 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
985 | return count; |
986 | } | |
f984c7b9 | 987 | |
97a32539 AD |
988 | static const struct proc_ops cifs_security_flags_proc_ops = { |
989 | .proc_open = cifs_security_flags_proc_open, | |
990 | .proc_read = seq_read, | |
991 | .proc_lseek = seq_lseek, | |
992 | .proc_release = single_release, | |
993 | .proc_write = cifs_security_flags_proc_write, | |
f984c7b9 | 994 | }; |
94b0595a AA |
995 | |
996 | /* To make it easier to debug, can help to show mount params */ | |
997 | static int cifs_mount_params_proc_show(struct seq_file *m, void *v) | |
998 | { | |
999 | const struct fs_parameter_spec *p; | |
1000 | const char *type; | |
1001 | ||
1002 | for (p = smb3_fs_parameters; p->name; p++) { | |
1003 | /* cannot use switch with pointers... */ | |
1004 | if (!p->type) { | |
1005 | if (p->flags == fs_param_neg_with_no) | |
1006 | type = "noflag"; | |
1007 | else | |
1008 | type = "flag"; | |
1009 | } else if (p->type == fs_param_is_bool) | |
1010 | type = "bool"; | |
1011 | else if (p->type == fs_param_is_u32) | |
1012 | type = "u32"; | |
1013 | else if (p->type == fs_param_is_u64) | |
1014 | type = "u64"; | |
1015 | else if (p->type == fs_param_is_string) | |
1016 | type = "string"; | |
1017 | else | |
1018 | type = "unknown"; | |
1019 | ||
1020 | seq_printf(m, "%s:%s\n", p->name, type); | |
1021 | } | |
1022 | ||
1023 | return 0; | |
1024 | } | |
1025 | ||
1026 | static int cifs_mount_params_proc_open(struct inode *inode, struct file *file) | |
1027 | { | |
1028 | return single_open(file, cifs_mount_params_proc_show, NULL); | |
1029 | } | |
1030 | ||
1031 | static const struct proc_ops cifs_mount_params_proc_ops = { | |
1032 | .proc_open = cifs_mount_params_proc_open, | |
1033 | .proc_read = seq_read, | |
1034 | .proc_lseek = seq_lseek, | |
1035 | .proc_release = single_release, | |
1036 | /* No need for write for now */ | |
1037 | /* .proc_write = cifs_mount_params_proc_write, */ | |
1038 | }; | |
1039 | ||
90c81e0b | 1040 | #else |
e086fcea | 1041 | inline void cifs_proc_init(void) |
90c81e0b SF |
1042 | { |
1043 | } | |
1044 | ||
e086fcea | 1045 | inline void cifs_proc_clean(void) |
90c81e0b SF |
1046 | { |
1047 | } | |
1048 | #endif /* PROC_FS */ |