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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 |
d4e4854f PS |
39 | struct smb_hdr *smb = (struct smb_hdr *)buf; |
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, |
71992e62 | 45 | server->ops->calc_smb_size(smb, server)); |
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"); |
3979877e | 58 | spin_lock(&GlobalMid_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 | } | |
81 | spin_unlock(&GlobalMid_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), | |
97 | tcon->tidStatus); | |
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"); | |
02cf5905 AA |
119 | |
120 | if (tcon->need_reconnect) | |
121 | seq_puts(m, "\tDISCONNECTED "); | |
122 | seq_putc(m, '\n'); | |
123 | } | |
124 | ||
85150929 AA |
125 | static void |
126 | cifs_dump_channel(struct seq_file *m, int i, struct cifs_chan *chan) | |
127 | { | |
128 | struct TCP_Server_Info *server = chan->server; | |
129 | ||
03e9bb1a SP |
130 | seq_printf(m, "\n\n\t\tChannel: %d ConnectionId: 0x%llx" |
131 | "\n\t\tNumber of credits: %d Dialect 0x%x" | |
132 | "\n\t\tTCP status: %d Instance: %d" | |
133 | "\n\t\tLocal Users To Server: %d SecMode: 0x%x Req On Wire: %d" | |
134 | "\n\t\tIn Send: %d In MaxReq Wait: %d", | |
135 | i+1, server->conn_id, | |
85150929 AA |
136 | server->credits, |
137 | server->dialect, | |
138 | server->tcpStatus, | |
139 | server->reconnect_instance, | |
140 | server->srv_count, | |
141 | server->sec_mode, | |
142 | in_flight(server), | |
143 | atomic_read(&server->in_send), | |
144 | atomic_read(&server->num_waiters)); | |
145 | } | |
146 | ||
bc0fe8b2 AA |
147 | static void |
148 | cifs_dump_iface(struct seq_file *m, struct cifs_server_iface *iface) | |
149 | { | |
150 | struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr; | |
151 | struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr; | |
152 | ||
35a90807 | 153 | seq_printf(m, "\tSpeed: %zu bps\n", iface->speed); |
bc0fe8b2 AA |
154 | seq_puts(m, "\t\tCapabilities: "); |
155 | if (iface->rdma_capable) | |
156 | seq_puts(m, "rdma "); | |
157 | if (iface->rss_capable) | |
158 | seq_puts(m, "rss "); | |
159 | seq_putc(m, '\n'); | |
160 | if (iface->sockaddr.ss_family == AF_INET) | |
161 | seq_printf(m, "\t\tIPv4: %pI4\n", &ipv4->sin_addr); | |
162 | else if (iface->sockaddr.ss_family == AF_INET6) | |
163 | seq_printf(m, "\t\tIPv6: %pI6\n", &ipv6->sin6_addr); | |
164 | } | |
165 | ||
dfe33f9a SF |
166 | static int cifs_debug_files_proc_show(struct seq_file *m, void *v) |
167 | { | |
a506ccb4 | 168 | struct list_head *tmp, *tmp1, *tmp2; |
dfe33f9a SF |
169 | struct TCP_Server_Info *server; |
170 | struct cifs_ses *ses; | |
171 | struct cifs_tcon *tcon; | |
172 | struct cifsFileInfo *cfile; | |
173 | ||
174 | seq_puts(m, "# Version:1\n"); | |
175 | seq_puts(m, "# Format:\n"); | |
176 | seq_puts(m, "# <tree id> <persistent fid> <flags> <count> <pid> <uid>"); | |
177 | #ifdef CONFIG_CIFS_DEBUG2 | |
178 | seq_printf(m, " <filename> <mid>\n"); | |
179 | #else | |
180 | seq_printf(m, " <filename>\n"); | |
181 | #endif /* CIFS_DEBUG2 */ | |
182 | spin_lock(&cifs_tcp_ses_lock); | |
a506ccb4 | 183 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
dfe33f9a SF |
184 | list_for_each(tmp, &server->smb_ses_list) { |
185 | ses = list_entry(tmp, struct cifs_ses, smb_ses_list); | |
186 | list_for_each(tmp1, &ses->tcon_list) { | |
187 | tcon = list_entry(tmp1, struct cifs_tcon, tcon_list); | |
188 | spin_lock(&tcon->open_file_lock); | |
189 | list_for_each(tmp2, &tcon->openFileList) { | |
190 | cfile = list_entry(tmp2, struct cifsFileInfo, | |
191 | tlist); | |
192 | seq_printf(m, | |
b9e4666f | 193 | "0x%x 0x%llx 0x%x %d %d %d %pd", |
dfe33f9a SF |
194 | tcon->tid, |
195 | cfile->fid.persistent_fid, | |
196 | cfile->f_flags, | |
197 | cfile->count, | |
198 | cfile->pid, | |
199 | from_kuid(&init_user_ns, cfile->uid), | |
b9e4666f | 200 | cfile->dentry); |
dfe33f9a | 201 | #ifdef CONFIG_CIFS_DEBUG2 |
bf1bc694 | 202 | seq_printf(m, " %llu\n", cfile->fid.mid); |
dfe33f9a SF |
203 | #else |
204 | seq_printf(m, "\n"); | |
205 | #endif /* CIFS_DEBUG2 */ | |
206 | } | |
207 | spin_unlock(&tcon->open_file_lock); | |
208 | } | |
209 | } | |
210 | } | |
211 | spin_unlock(&cifs_tcp_ses_lock); | |
212 | seq_putc(m, '\n'); | |
213 | return 0; | |
214 | } | |
215 | ||
f984c7b9 | 216 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 217 | { |
a506ccb4 | 218 | struct list_head *tmp2, *tmp3; |
ffdd6e4d | 219 | struct mid_q_entry *mid_entry; |
14fbf50d | 220 | struct TCP_Server_Info *server; |
96daf2b0 SF |
221 | struct cifs_ses *ses; |
222 | struct cifs_tcon *tcon; | |
03e9bb1a | 223 | int c, i, j; |
1da177e4 | 224 | |
f984c7b9 | 225 | seq_puts(m, |
1da177e4 LT |
226 | "Display Internal CIFS Data Structures for Debugging\n" |
227 | "---------------------------------------------------\n"); | |
f984c7b9 | 228 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 229 | seq_printf(m, "Features:"); |
f579903e | 230 | #ifdef CONFIG_CIFS_DFS_UPCALL |
950132af | 231 | seq_printf(m, " DFS"); |
f579903e SJ |
232 | #endif |
233 | #ifdef CONFIG_CIFS_FSCACHE | |
950132af SF |
234 | seq_printf(m, ",FSCACHE"); |
235 | #endif | |
236 | #ifdef CONFIG_CIFS_SMB_DIRECT | |
237 | seq_printf(m, ",SMB_DIRECT"); | |
238 | #endif | |
239 | #ifdef CONFIG_CIFS_STATS2 | |
240 | seq_printf(m, ",STATS2"); | |
d2586500 | 241 | #else |
950132af SF |
242 | seq_printf(m, ",STATS"); |
243 | #endif | |
244 | #ifdef CONFIG_CIFS_DEBUG2 | |
245 | seq_printf(m, ",DEBUG2"); | |
246 | #elif defined(CONFIG_CIFS_DEBUG) | |
247 | seq_printf(m, ",DEBUG"); | |
248 | #endif | |
249 | #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY | |
250 | seq_printf(m, ",ALLOW_INSECURE_LEGACY"); | |
f579903e | 251 | #endif |
f579903e | 252 | #ifdef CONFIG_CIFS_POSIX |
950132af | 253 | seq_printf(m, ",CIFS_POSIX"); |
f579903e SJ |
254 | #endif |
255 | #ifdef CONFIG_CIFS_UPCALL | |
950132af | 256 | seq_printf(m, ",UPCALL(SPNEGO)"); |
f579903e SJ |
257 | #endif |
258 | #ifdef CONFIG_CIFS_XATTR | |
950132af | 259 | seq_printf(m, ",XATTR"); |
ca40b714 | 260 | #endif |
950132af | 261 | seq_printf(m, ",ACL"); |
20fab0da SC |
262 | #ifdef CONFIG_CIFS_SWN_UPCALL |
263 | seq_puts(m, ",WITNESS"); | |
264 | #endif | |
f579903e | 265 | seq_putc(m, '\n'); |
a5f1a81f | 266 | seq_printf(m, "CIFSMaxBufSize: %d\n", CIFSMaxBufSize); |
f984c7b9 | 267 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
1da177e4 | 268 | |
03e9bb1a SP |
269 | seq_printf(m, "\nServers: "); |
270 | ||
271 | c = 0; | |
3f9bcca7 | 272 | spin_lock(&cifs_tcp_ses_lock); |
a506ccb4 | 273 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
03e9bb1a SP |
274 | if (server->is_channel) |
275 | continue; | |
276 | ||
277 | c++; | |
278 | seq_printf(m, "\n%d) ConnectionId: 0x%llx ", | |
279 | c, server->conn_id); | |
280 | ||
40f077a0 SF |
281 | if (server->hostname) |
282 | seq_printf(m, "Hostname: %s ", server->hostname); | |
08a3b969 LL |
283 | #ifdef CONFIG_CIFS_SMB_DIRECT |
284 | if (!server->rdma) | |
285 | goto skip_rdma; | |
286 | ||
14cc639c LL |
287 | if (!server->smbd_conn) { |
288 | seq_printf(m, "\nSMBDirect transport not available"); | |
289 | goto skip_rdma; | |
290 | } | |
291 | ||
08a3b969 LL |
292 | seq_printf(m, "\nSMBDirect (in hex) protocol version: %x " |
293 | "transport status: %x", | |
294 | server->smbd_conn->protocol, | |
295 | server->smbd_conn->transport_status); | |
296 | seq_printf(m, "\nConn receive_credit_max: %x " | |
297 | "send_credit_target: %x max_send_size: %x", | |
298 | server->smbd_conn->receive_credit_max, | |
299 | server->smbd_conn->send_credit_target, | |
300 | server->smbd_conn->max_send_size); | |
301 | seq_printf(m, "\nConn max_fragmented_recv_size: %x " | |
302 | "max_fragmented_send_size: %x max_receive_size:%x", | |
303 | server->smbd_conn->max_fragmented_recv_size, | |
304 | server->smbd_conn->max_fragmented_send_size, | |
305 | server->smbd_conn->max_receive_size); | |
306 | seq_printf(m, "\nConn keep_alive_interval: %x " | |
307 | "max_readwrite_size: %x rdma_readwrite_threshold: %x", | |
308 | server->smbd_conn->keep_alive_interval, | |
309 | server->smbd_conn->max_readwrite_size, | |
310 | server->smbd_conn->rdma_readwrite_threshold); | |
311 | seq_printf(m, "\nDebug count_get_receive_buffer: %x " | |
312 | "count_put_receive_buffer: %x count_send_empty: %x", | |
313 | server->smbd_conn->count_get_receive_buffer, | |
314 | server->smbd_conn->count_put_receive_buffer, | |
315 | server->smbd_conn->count_send_empty); | |
316 | seq_printf(m, "\nRead Queue count_reassembly_queue: %x " | |
317 | "count_enqueue_reassembly_queue: %x " | |
318 | "count_dequeue_reassembly_queue: %x " | |
319 | "fragment_reassembly_remaining: %x " | |
320 | "reassembly_data_length: %x " | |
321 | "reassembly_queue_length: %x", | |
322 | server->smbd_conn->count_reassembly_queue, | |
323 | server->smbd_conn->count_enqueue_reassembly_queue, | |
324 | server->smbd_conn->count_dequeue_reassembly_queue, | |
325 | server->smbd_conn->fragment_reassembly_remaining, | |
326 | server->smbd_conn->reassembly_data_length, | |
327 | server->smbd_conn->reassembly_queue_length); | |
328 | seq_printf(m, "\nCurrent Credits send_credits: %x " | |
329 | "receive_credits: %x receive_credit_target: %x", | |
330 | atomic_read(&server->smbd_conn->send_credits), | |
331 | atomic_read(&server->smbd_conn->receive_credits), | |
332 | server->smbd_conn->receive_credit_target); | |
072a14ec LL |
333 | seq_printf(m, "\nPending send_pending: %x ", |
334 | atomic_read(&server->smbd_conn->send_pending)); | |
08a3b969 LL |
335 | seq_printf(m, "\nReceive buffers count_receive_queue: %x " |
336 | "count_empty_packet_queue: %x", | |
337 | server->smbd_conn->count_receive_queue, | |
338 | server->smbd_conn->count_empty_packet_queue); | |
339 | seq_printf(m, "\nMR responder_resources: %x " | |
340 | "max_frmr_depth: %x mr_type: %x", | |
341 | server->smbd_conn->responder_resources, | |
342 | server->smbd_conn->max_frmr_depth, | |
343 | server->smbd_conn->mr_type); | |
344 | seq_printf(m, "\nMR mr_ready_count: %x mr_used_count: %x", | |
345 | atomic_read(&server->smbd_conn->mr_ready_count), | |
346 | atomic_read(&server->smbd_conn->mr_used_count)); | |
347 | skip_rdma: | |
348 | #endif | |
ede2e520 SF |
349 | seq_printf(m, "\nNumber of credits: %d Dialect 0x%x", |
350 | server->credits, server->dialect); | |
26ea888f SF |
351 | if (server->compress_algorithm == SMB3_COMPRESS_LZNT1) |
352 | seq_printf(m, " COMPRESS_LZNT1"); | |
353 | else if (server->compress_algorithm == SMB3_COMPRESS_LZ77) | |
354 | seq_printf(m, " COMPRESS_LZ77"); | |
355 | else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF) | |
356 | seq_printf(m, " COMPRESS_LZ77_HUFF"); | |
ede2e520 SF |
357 | if (server->sign) |
358 | seq_printf(m, " signed"); | |
fcef0db6 SF |
359 | if (server->posix_ext_supported) |
360 | seq_printf(m, " posix"); | |
8842f668 SP |
361 | if (server->nosharesock) |
362 | seq_printf(m, " nosharesock"); | |
0fdfef9a | 363 | |
03e9bb1a SP |
364 | if (server->rdma) |
365 | seq_printf(m, "\nRDMA "); | |
366 | seq_printf(m, "\nTCP status: %d Instance: %d" | |
367 | "\nLocal Users To Server: %d SecMode: 0x%x Req On Wire: %d", | |
368 | server->tcpStatus, | |
369 | server->reconnect_instance, | |
370 | server->srv_count, | |
371 | server->sec_mode, in_flight(server)); | |
372 | ||
373 | seq_printf(m, "\nIn Send: %d In MaxReq Wait: %d", | |
374 | atomic_read(&server->in_send), | |
375 | atomic_read(&server->num_waiters)); | |
376 | ||
377 | seq_printf(m, "\n\n\tSessions: "); | |
378 | i = 0; | |
14fbf50d | 379 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 380 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d | 381 | smb_ses_list); |
03e9bb1a | 382 | i++; |
14fbf50d JL |
383 | if ((ses->serverDomain == NULL) || |
384 | (ses->serverOS == NULL) || | |
385 | (ses->serverNOS == NULL)) { | |
40f077a0 | 386 | seq_printf(m, "\n\t%d) Address: %s Uses: %d Capability: 0x%x\tSession Status: %d ", |
b438fcf1 | 387 | i, ses->ip_addr, ses->ses_count, |
1fa089ec SF |
388 | ses->capabilities, ses->status); |
389 | if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) | |
03e9bb1a | 390 | seq_printf(m, "Guest "); |
1fa089ec | 391 | else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) |
03e9bb1a | 392 | seq_printf(m, "Anonymous "); |
14fbf50d JL |
393 | } else { |
394 | seq_printf(m, | |
03e9bb1a SP |
395 | "\n\t%d) Name: %s Domain: %s Uses: %d OS: %s " |
396 | "\n\tNOS: %s\tCapability: 0x%x" | |
397 | "\n\tSMB session status: %d ", | |
b438fcf1 | 398 | i, ses->ip_addr, ses->serverDomain, |
14fbf50d | 399 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 400 | ses->capabilities, ses->status); |
14fbf50d | 401 | } |
8e84a61a | 402 | |
03e9bb1a | 403 | seq_printf(m, "\n\tSecurity type: %s ", |
0b0430c6 | 404 | get_security_type_str(server->ops->select_sectype(server, ses->sectype))); |
8e84a61a | 405 | |
b63a9de0 SF |
406 | /* dump session id helpful for use with network trace */ |
407 | seq_printf(m, " SessionId: 0x%llx", ses->Suid); | |
ffd1ef1e SF |
408 | if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) |
409 | seq_puts(m, " encrypted"); | |
410 | if (ses->sign) | |
411 | seq_puts(m, " signed"); | |
131afd0b | 412 | |
aadd69ca PA |
413 | seq_printf(m, "\n\tUser: %d Cred User: %d", |
414 | from_kuid(&init_user_ns, ses->linux_uid), | |
415 | from_kuid(&init_user_ns, ses->cred_uid)); | |
416 | ||
3b02aee7 | 417 | spin_lock(&ses->chan_lock); |
85150929 | 418 | if (ses->chan_count > 1) { |
03e9bb1a | 419 | seq_printf(m, "\n\n\tExtra Channels: %zu ", |
85150929 AA |
420 | ses->chan_count-1); |
421 | for (j = 1; j < ses->chan_count; j++) | |
422 | cifs_dump_channel(m, j, &ses->chans[j]); | |
423 | } | |
3b02aee7 | 424 | spin_unlock(&ses->chan_lock); |
85150929 | 425 | |
03e9bb1a | 426 | seq_puts(m, "\n\n\tShares: "); |
f1987b44 | 427 | j = 0; |
02cf5905 AA |
428 | |
429 | seq_printf(m, "\n\t%d) IPC: ", j); | |
430 | if (ses->tcon_ipc) | |
431 | cifs_debug_tcon(m, ses->tcon_ipc); | |
432 | else | |
433 | seq_puts(m, "none\n"); | |
434 | ||
f1987b44 | 435 | list_for_each(tmp3, &ses->tcon_list) { |
96daf2b0 | 436 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
437 | tcon_list); |
438 | ++j; | |
02cf5905 AA |
439 | seq_printf(m, "\n\t%d) ", j); |
440 | cifs_debug_tcon(m, tcon); | |
f1987b44 JL |
441 | } |
442 | ||
bc0fe8b2 | 443 | spin_lock(&ses->iface_lock); |
115d5d28 | 444 | if (ses->iface_count) |
03e9bb1a | 445 | seq_printf(m, "\n\n\tServer interfaces: %zu", |
115d5d28 | 446 | ses->iface_count); |
bc0fe8b2 | 447 | for (j = 0; j < ses->iface_count; j++) { |
85150929 AA |
448 | struct cifs_server_iface *iface; |
449 | ||
450 | iface = &ses->iface_list[j]; | |
03e9bb1a | 451 | seq_printf(m, "\n\t%d)", j+1); |
85150929 AA |
452 | cifs_dump_iface(m, iface); |
453 | if (is_ses_using_iface(ses, iface)) | |
454 | seq_puts(m, "\t\t[CONNECTED]\n"); | |
bc0fe8b2 AA |
455 | } |
456 | spin_unlock(&ses->iface_lock); | |
1da177e4 | 457 | } |
03e9bb1a SP |
458 | if (i == 0) |
459 | seq_printf(m, "\n\t\t[NONE]"); | |
460 | ||
461 | seq_puts(m, "\n\n\tMIDs: "); | |
462 | spin_lock(&GlobalMid_Lock); | |
463 | list_for_each(tmp3, &server->pending_mid_q) { | |
464 | mid_entry = list_entry(tmp3, struct mid_q_entry, | |
465 | qhead); | |
466 | seq_printf(m, "\n\tState: %d com: %d pid:" | |
467 | " %d cbdata: %p mid %llu\n", | |
468 | mid_entry->mid_state, | |
469 | le16_to_cpu(mid_entry->command), | |
470 | mid_entry->pid, | |
471 | mid_entry->callback_data, | |
472 | mid_entry->mid); | |
473 | } | |
474 | spin_unlock(&GlobalMid_Lock); | |
475 | seq_printf(m, "\n--\n"); | |
1da177e4 | 476 | } |
03e9bb1a SP |
477 | if (c == 0) |
478 | seq_printf(m, "\n\t[NONE]"); | |
479 | ||
3f9bcca7 | 480 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 481 | seq_putc(m, '\n'); |
20fab0da | 482 | cifs_swn_dump(m); |
b7fd0fa0 | 483 | |
1da177e4 | 484 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
485 | return 0; |
486 | } | |
1da177e4 | 487 | |
f984c7b9 AD |
488 | static ssize_t cifs_stats_proc_write(struct file *file, |
489 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 490 | { |
28e2aed2 | 491 | bool bv; |
221601c3 | 492 | int rc; |
f1987b44 JL |
493 | struct list_head *tmp1, *tmp2, *tmp3; |
494 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
495 | struct cifs_ses *ses; |
496 | struct cifs_tcon *tcon; | |
1047abc1 | 497 | |
1404297e KC |
498 | rc = kstrtobool_from_user(buffer, count, &bv); |
499 | if (rc == 0) { | |
4498eed5 | 500 | #ifdef CONFIG_CIFS_STATS2 |
468d6779 SF |
501 | int i; |
502 | ||
4498eed5 SF |
503 | atomic_set(&totBufAllocCount, 0); |
504 | atomic_set(&totSmBufAllocCount, 0); | |
505 | #endif /* CONFIG_CIFS_STATS2 */ | |
2c887635 SF |
506 | atomic_set(&tcpSesReconnectCount, 0); |
507 | atomic_set(&tconInfoReconnectCount, 0); | |
508 | ||
c281bc0c SF |
509 | spin_lock(&GlobalMid_Lock); |
510 | GlobalMaxActiveXid = 0; | |
511 | GlobalCurrentXid = 0; | |
512 | spin_unlock(&GlobalMid_Lock); | |
3f9bcca7 | 513 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
514 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
515 | server = list_entry(tmp1, struct TCP_Server_Info, | |
516 | tcp_ses_list); | |
1b63f184 | 517 | server->max_in_flight = 0; |
468d6779 | 518 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
519 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { |
520 | atomic_set(&server->num_cmds[i], 0); | |
468d6779 | 521 | atomic_set(&server->smb2slowcmd[i], 0); |
433b8dd7 SF |
522 | server->time_per_cmd[i] = 0; |
523 | server->slowest_cmd[i] = 0; | |
524 | server->fastest_cmd[0] = 0; | |
525 | } | |
468d6779 | 526 | #endif /* CONFIG_CIFS_STATS2 */ |
c2b3382c | 527 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 528 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 529 | smb_ses_list); |
f1987b44 JL |
530 | list_for_each(tmp3, &ses->tcon_list) { |
531 | tcon = list_entry(tmp3, | |
96daf2b0 | 532 | struct cifs_tcon, |
f1987b44 JL |
533 | tcon_list); |
534 | atomic_set(&tcon->num_smbs_sent, 0); | |
c281bc0c SF |
535 | spin_lock(&tcon->stat_lock); |
536 | tcon->bytes_read = 0; | |
537 | tcon->bytes_written = 0; | |
538 | spin_unlock(&tcon->stat_lock); | |
44c58186 PS |
539 | if (server->ops->clear_stats) |
540 | server->ops->clear_stats(tcon); | |
f1987b44 JL |
541 | } |
542 | } | |
1047abc1 | 543 | } |
3f9bcca7 | 544 | spin_unlock(&cifs_tcp_ses_lock); |
1404297e KC |
545 | } else { |
546 | return rc; | |
1047abc1 SF |
547 | } |
548 | ||
221601c3 | 549 | return count; |
1047abc1 SF |
550 | } |
551 | ||
f984c7b9 | 552 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 553 | { |
f984c7b9 | 554 | int i; |
468d6779 SF |
555 | #ifdef CONFIG_CIFS_STATS2 |
556 | int j; | |
557 | #endif /* STATS2 */ | |
a506ccb4 | 558 | struct list_head *tmp2, *tmp3; |
f1987b44 | 559 | struct TCP_Server_Info *server; |
96daf2b0 SF |
560 | struct cifs_ses *ses; |
561 | struct cifs_tcon *tcon; | |
1da177e4 | 562 | |
468d6779 | 563 | seq_printf(m, "Resources in use\nCIFS Session: %d\n", |
1da177e4 | 564 | sesInfoAllocCount.counter); |
f984c7b9 | 565 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 566 | tconInfoAllocCount.counter); |
f984c7b9 | 567 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
568 | bufAllocCount.counter, |
569 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 570 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 571 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 572 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 573 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 574 | atomic_read(&totBufAllocCount), |
221601c3 | 575 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
576 | #endif /* CONFIG_CIFS_STATS2 */ |
577 | ||
8097531a | 578 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 579 | seq_printf(m, |
1da177e4 | 580 | "\n%d session %d share reconnects\n", |
221601c3 | 581 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 582 | |
f984c7b9 | 583 | seq_printf(m, |
1da177e4 | 584 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 585 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
586 | |
587 | i = 0; | |
3f9bcca7 | 588 | spin_lock(&cifs_tcp_ses_lock); |
a506ccb4 | 589 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
1b63f184 | 590 | seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight); |
468d6779 | 591 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
592 | seq_puts(m, "\nTotal time spent processing by command. Time "); |
593 | seq_printf(m, "units are jiffies (%d per second)\n", HZ); | |
594 | seq_puts(m, " SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n"); | |
595 | seq_puts(m, " --------\t------\t----------\t-------\t-------\n"); | |
596 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) | |
597 | seq_printf(m, " %d\t\t%d\t%llu\t\t%u\t%u\n", j, | |
598 | atomic_read(&server->num_cmds[j]), | |
599 | server->time_per_cmd[j], | |
600 | server->fastest_cmd[j], | |
601 | server->slowest_cmd[j]); | |
468d6779 SF |
602 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) |
603 | if (atomic_read(&server->smb2slowcmd[j])) | |
433b8dd7 | 604 | seq_printf(m, " %d slow responses from %s for command %d\n", |
468d6779 SF |
605 | atomic_read(&server->smb2slowcmd[j]), |
606 | server->hostname, j); | |
607 | #endif /* STATS2 */ | |
f1987b44 | 608 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 609 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
610 | smb_ses_list); |
611 | list_for_each(tmp3, &ses->tcon_list) { | |
612 | tcon = list_entry(tmp3, | |
96daf2b0 | 613 | struct cifs_tcon, |
f1987b44 JL |
614 | tcon_list); |
615 | i++; | |
616 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
617 | if (tcon->need_reconnect) | |
618 | seq_puts(m, "\tDISCONNECTED "); | |
44c58186 PS |
619 | seq_printf(m, "\nSMBs: %d", |
620 | atomic_read(&tcon->num_smbs_sent)); | |
621 | if (server->ops->print_stats) | |
622 | server->ops->print_stats(m, tcon); | |
f1987b44 JL |
623 | } |
624 | } | |
1da177e4 | 625 | } |
3f9bcca7 | 626 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 627 | |
f984c7b9 AD |
628 | seq_putc(m, '\n'); |
629 | return 0; | |
630 | } | |
221601c3 | 631 | |
f984c7b9 AD |
632 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
633 | { | |
634 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 635 | } |
f984c7b9 | 636 | |
97a32539 AD |
637 | static const struct proc_ops cifs_stats_proc_ops = { |
638 | .proc_open = cifs_stats_proc_open, | |
639 | .proc_read = seq_read, | |
640 | .proc_lseek = seq_lseek, | |
641 | .proc_release = single_release, | |
642 | .proc_write = cifs_stats_proc_write, | |
f984c7b9 | 643 | }; |
1da177e4 | 644 | |
d8ec913b LL |
645 | #ifdef CONFIG_CIFS_SMB_DIRECT |
646 | #define PROC_FILE_DEFINE(name) \ | |
647 | static ssize_t name##_write(struct file *file, const char __user *buffer, \ | |
648 | size_t count, loff_t *ppos) \ | |
649 | { \ | |
650 | int rc; \ | |
651 | rc = kstrtoint_from_user(buffer, count, 10, & name); \ | |
652 | if (rc) \ | |
653 | return rc; \ | |
654 | return count; \ | |
655 | } \ | |
656 | static int name##_proc_show(struct seq_file *m, void *v) \ | |
657 | { \ | |
658 | seq_printf(m, "%d\n", name ); \ | |
659 | return 0; \ | |
660 | } \ | |
661 | static int name##_open(struct inode *inode, struct file *file) \ | |
662 | { \ | |
663 | return single_open(file, name##_proc_show, NULL); \ | |
664 | } \ | |
665 | \ | |
97a32539 AD |
666 | static const struct proc_ops cifs_##name##_proc_fops = { \ |
667 | .proc_open = name##_open, \ | |
668 | .proc_read = seq_read, \ | |
669 | .proc_lseek = seq_lseek, \ | |
670 | .proc_release = single_release, \ | |
671 | .proc_write = name##_write, \ | |
d8ec913b LL |
672 | } |
673 | ||
d8ec913b LL |
674 | PROC_FILE_DEFINE(rdma_readwrite_threshold); |
675 | PROC_FILE_DEFINE(smbd_max_frmr_depth); | |
676 | PROC_FILE_DEFINE(smbd_keep_alive_interval); | |
677 | PROC_FILE_DEFINE(smbd_max_receive_size); | |
678 | PROC_FILE_DEFINE(smbd_max_fragmented_recv_size); | |
679 | PROC_FILE_DEFINE(smbd_max_send_size); | |
680 | PROC_FILE_DEFINE(smbd_send_credit_target); | |
681 | PROC_FILE_DEFINE(smbd_receive_credit_max); | |
682 | #endif | |
683 | ||
1da177e4 | 684 | static struct proc_dir_entry *proc_fs_cifs; |
97a32539 AD |
685 | static const struct proc_ops cifsFYI_proc_ops; |
686 | static const struct proc_ops cifs_lookup_cache_proc_ops; | |
687 | static const struct proc_ops traceSMB_proc_ops; | |
688 | static const struct proc_ops cifs_security_flags_proc_ops; | |
689 | static const struct proc_ops cifs_linux_ext_proc_ops; | |
94b0595a | 690 | static const struct proc_ops cifs_mount_params_proc_ops; |
1da177e4 LT |
691 | |
692 | void | |
693 | cifs_proc_init(void) | |
694 | { | |
36a5aeb8 | 695 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
696 | if (proc_fs_cifs == NULL) |
697 | return; | |
698 | ||
3f3942ac CH |
699 | proc_create_single("DebugData", 0, proc_fs_cifs, |
700 | cifs_debug_data_proc_show); | |
1da177e4 | 701 | |
dfe33f9a SF |
702 | proc_create_single("open_files", 0400, proc_fs_cifs, |
703 | cifs_debug_files_proc_show); | |
704 | ||
97a32539 AD |
705 | proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_ops); |
706 | proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_ops); | |
707 | proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_ops); | |
6539e7f3 | 708 | proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs, |
97a32539 | 709 | &cifs_linux_ext_proc_ops); |
6539e7f3 | 710 | proc_create("SecurityFlags", 0644, proc_fs_cifs, |
97a32539 | 711 | &cifs_security_flags_proc_ops); |
6539e7f3 | 712 | proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, |
97a32539 | 713 | &cifs_lookup_cache_proc_ops); |
54be1f6c | 714 | |
94b0595a AA |
715 | proc_create("mount_params", 0444, proc_fs_cifs, &cifs_mount_params_proc_ops); |
716 | ||
54be1f6c | 717 | #ifdef CONFIG_CIFS_DFS_UPCALL |
97a32539 | 718 | proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_ops); |
54be1f6c PA |
719 | #endif |
720 | ||
d8ec913b | 721 | #ifdef CONFIG_CIFS_SMB_DIRECT |
6539e7f3 | 722 | proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs, |
d8ec913b | 723 | &cifs_rdma_readwrite_threshold_proc_fops); |
6539e7f3 | 724 | proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs, |
d8ec913b | 725 | &cifs_smbd_max_frmr_depth_proc_fops); |
6539e7f3 | 726 | proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs, |
d8ec913b | 727 | &cifs_smbd_keep_alive_interval_proc_fops); |
6539e7f3 | 728 | proc_create("smbd_max_receive_size", 0644, proc_fs_cifs, |
d8ec913b | 729 | &cifs_smbd_max_receive_size_proc_fops); |
6539e7f3 | 730 | proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs, |
d8ec913b | 731 | &cifs_smbd_max_fragmented_recv_size_proc_fops); |
6539e7f3 | 732 | proc_create("smbd_max_send_size", 0644, proc_fs_cifs, |
d8ec913b | 733 | &cifs_smbd_max_send_size_proc_fops); |
6539e7f3 | 734 | proc_create("smbd_send_credit_target", 0644, proc_fs_cifs, |
d8ec913b | 735 | &cifs_smbd_send_credit_target_proc_fops); |
6539e7f3 | 736 | proc_create("smbd_receive_credit_max", 0644, proc_fs_cifs, |
d8ec913b LL |
737 | &cifs_smbd_receive_credit_max_proc_fops); |
738 | #endif | |
1da177e4 LT |
739 | } |
740 | ||
741 | void | |
742 | cifs_proc_clean(void) | |
743 | { | |
744 | if (proc_fs_cifs == NULL) | |
745 | return; | |
746 | ||
747 | remove_proc_entry("DebugData", proc_fs_cifs); | |
dfe33f9a | 748 | remove_proc_entry("open_files", proc_fs_cifs); |
1da177e4 LT |
749 | remove_proc_entry("cifsFYI", proc_fs_cifs); |
750 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
1da177e4 | 751 | remove_proc_entry("Stats", proc_fs_cifs); |
221601c3 | 752 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 753 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 754 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
94b0595a | 755 | remove_proc_entry("mount_params", proc_fs_cifs); |
54be1f6c PA |
756 | |
757 | #ifdef CONFIG_CIFS_DFS_UPCALL | |
758 | remove_proc_entry("dfscache", proc_fs_cifs); | |
759 | #endif | |
d8ec913b LL |
760 | #ifdef CONFIG_CIFS_SMB_DIRECT |
761 | remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs); | |
762 | remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs); | |
763 | remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs); | |
764 | remove_proc_entry("smbd_max_receive_size", proc_fs_cifs); | |
765 | remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs); | |
766 | remove_proc_entry("smbd_max_send_size", proc_fs_cifs); | |
767 | remove_proc_entry("smbd_send_credit_target", proc_fs_cifs); | |
768 | remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs); | |
769 | #endif | |
36a5aeb8 | 770 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
771 | } |
772 | ||
f984c7b9 | 773 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 774 | { |
f984c7b9 AD |
775 | seq_printf(m, "%d\n", cifsFYI); |
776 | return 0; | |
777 | } | |
1da177e4 | 778 | |
f984c7b9 AD |
779 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
780 | { | |
781 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 782 | } |
f984c7b9 AD |
783 | |
784 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
785 | size_t count, loff_t *ppos) | |
1da177e4 | 786 | { |
1404297e | 787 | char c[2] = { '\0' }; |
28e2aed2 | 788 | bool bv; |
1da177e4 LT |
789 | int rc; |
790 | ||
1404297e | 791 | rc = get_user(c[0], buffer); |
1da177e4 LT |
792 | if (rc) |
793 | return rc; | |
1404297e | 794 | if (strtobool(c, &bv) == 0) |
28e2aed2 | 795 | cifsFYI = bv; |
1404297e KC |
796 | else if ((c[0] > '1') && (c[0] <= '9')) |
797 | cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */ | |
25ad1cbd RS |
798 | else |
799 | return -EINVAL; | |
1da177e4 LT |
800 | |
801 | return count; | |
802 | } | |
803 | ||
97a32539 AD |
804 | static const struct proc_ops cifsFYI_proc_ops = { |
805 | .proc_open = cifsFYI_proc_open, | |
806 | .proc_read = seq_read, | |
807 | .proc_lseek = seq_lseek, | |
808 | .proc_release = single_release, | |
809 | .proc_write = cifsFYI_proc_write, | |
f984c7b9 | 810 | }; |
1da177e4 | 811 | |
f984c7b9 AD |
812 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
813 | { | |
814 | seq_printf(m, "%d\n", linuxExtEnabled); | |
815 | return 0; | |
816 | } | |
1da177e4 | 817 | |
f984c7b9 AD |
818 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
819 | { | |
820 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 821 | } |
f984c7b9 AD |
822 | |
823 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
824 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 825 | { |
221601c3 SF |
826 | int rc; |
827 | ||
1404297e | 828 | rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled); |
221601c3 SF |
829 | if (rc) |
830 | return rc; | |
28e2aed2 | 831 | |
221601c3 | 832 | return count; |
1da177e4 LT |
833 | } |
834 | ||
97a32539 AD |
835 | static const struct proc_ops cifs_linux_ext_proc_ops = { |
836 | .proc_open = cifs_linux_ext_proc_open, | |
837 | .proc_read = seq_read, | |
838 | .proc_lseek = seq_lseek, | |
839 | .proc_release = single_release, | |
840 | .proc_write = cifs_linux_ext_proc_write, | |
f984c7b9 | 841 | }; |
1da177e4 | 842 | |
f984c7b9 | 843 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 844 | { |
f984c7b9 AD |
845 | seq_printf(m, "%d\n", lookupCacheEnabled); |
846 | return 0; | |
847 | } | |
1da177e4 | 848 | |
f984c7b9 AD |
849 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
850 | { | |
851 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 852 | } |
f984c7b9 AD |
853 | |
854 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
855 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 856 | { |
1da177e4 LT |
857 | int rc; |
858 | ||
1404297e | 859 | rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled); |
1da177e4 LT |
860 | if (rc) |
861 | return rc; | |
28e2aed2 | 862 | |
1da177e4 LT |
863 | return count; |
864 | } | |
1da177e4 | 865 | |
97a32539 AD |
866 | static const struct proc_ops cifs_lookup_cache_proc_ops = { |
867 | .proc_open = cifs_lookup_cache_proc_open, | |
868 | .proc_read = seq_read, | |
869 | .proc_lseek = seq_lseek, | |
870 | .proc_release = single_release, | |
871 | .proc_write = cifs_lookup_cache_proc_write, | |
f984c7b9 | 872 | }; |
1da177e4 | 873 | |
f984c7b9 AD |
874 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
875 | { | |
876 | seq_printf(m, "%d\n", traceSMB); | |
877 | return 0; | |
878 | } | |
1da177e4 | 879 | |
f984c7b9 AD |
880 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
881 | { | |
882 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 883 | } |
f984c7b9 AD |
884 | |
885 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
886 | size_t count, loff_t *ppos) | |
1da177e4 | 887 | { |
1da177e4 LT |
888 | int rc; |
889 | ||
1404297e | 890 | rc = kstrtobool_from_user(buffer, count, &traceSMB); |
1da177e4 LT |
891 | if (rc) |
892 | return rc; | |
28e2aed2 | 893 | |
1da177e4 LT |
894 | return count; |
895 | } | |
896 | ||
97a32539 AD |
897 | static const struct proc_ops traceSMB_proc_ops = { |
898 | .proc_open = traceSMB_proc_open, | |
899 | .proc_read = seq_read, | |
900 | .proc_lseek = seq_lseek, | |
901 | .proc_release = single_release, | |
902 | .proc_write = traceSMB_proc_write, | |
f984c7b9 | 903 | }; |
1da177e4 | 904 | |
f984c7b9 AD |
905 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
906 | { | |
04912d6a | 907 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
908 | return 0; |
909 | } | |
1da177e4 | 910 | |
f984c7b9 AD |
911 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
912 | { | |
913 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 914 | } |
f984c7b9 | 915 | |
52dfb446 JL |
916 | /* |
917 | * Ensure that if someone sets a MUST flag, that we disable all other MAY | |
918 | * flags except for the ones corresponding to the given MUST flag. If there are | |
919 | * multiple MUST flags, then try to prefer more secure ones. | |
920 | */ | |
921 | static void | |
922 | cifs_security_flags_handle_must_flags(unsigned int *flags) | |
923 | { | |
924 | unsigned int signflags = *flags & CIFSSEC_MUST_SIGN; | |
925 | ||
926 | if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
927 | *flags = CIFSSEC_MUST_KRB5; | |
928 | else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
929 | *flags = CIFSSEC_MUST_NTLMSSP; | |
930 | else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) | |
931 | *flags = CIFSSEC_MUST_NTLMV2; | |
52dfb446 JL |
932 | |
933 | *flags |= signflags; | |
934 | } | |
935 | ||
f984c7b9 AD |
936 | static ssize_t cifs_security_flags_proc_write(struct file *file, |
937 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 938 | { |
7715dad8 | 939 | int rc; |
bdc4bf6e SF |
940 | unsigned int flags; |
941 | char flags_string[12]; | |
28e2aed2 | 942 | bool bv; |
bdc4bf6e | 943 | |
221601c3 | 944 | if ((count < 1) || (count > 11)) |
3979877e | 945 | return -EINVAL; |
1da177e4 | 946 | |
bdc4bf6e | 947 | memset(flags_string, 0, 12); |
3979877e | 948 | |
221601c3 | 949 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 950 | return -EFAULT; |
3979877e | 951 | |
221601c3 | 952 | if (count < 3) { |
bdc4bf6e | 953 | /* single char or single char followed by null */ |
1404297e | 954 | if (strtobool(flags_string, &bv) == 0) { |
28e2aed2 | 955 | global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF; |
a013689d | 956 | return count; |
1404297e | 957 | } else if (!isdigit(flags_string[0])) { |
7715dad8 JL |
958 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", |
959 | flags_string); | |
a013689d SF |
960 | return -EINVAL; |
961 | } | |
bdc4bf6e | 962 | } |
bdc4bf6e | 963 | |
7715dad8 JL |
964 | /* else we have a number */ |
965 | rc = kstrtouint(flags_string, 0, &flags); | |
966 | if (rc) { | |
967 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", | |
968 | flags_string); | |
969 | return rc; | |
970 | } | |
bdc4bf6e | 971 | |
f96637be | 972 | cifs_dbg(FYI, "sec flags 0x%x\n", flags); |
bdc4bf6e | 973 | |
7715dad8 JL |
974 | if (flags == 0) { |
975 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string); | |
bdc4bf6e SF |
976 | return -EINVAL; |
977 | } | |
1da177e4 | 978 | |
221601c3 | 979 | if (flags & ~CIFSSEC_MASK) { |
7715dad8 | 980 | cifs_dbg(VFS, "Unsupported security flags: 0x%x\n", |
f96637be | 981 | flags & ~CIFSSEC_MASK); |
bdc4bf6e SF |
982 | return -EINVAL; |
983 | } | |
7715dad8 | 984 | |
52dfb446 JL |
985 | cifs_security_flags_handle_must_flags(&flags); |
986 | ||
bdc4bf6e | 987 | /* flags look ok - update the global security flags for cifs module */ |
04912d6a JL |
988 | global_secflags = flags; |
989 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 990 | /* requiring signing implies signing is allowed */ |
04912d6a | 991 | global_secflags |= CIFSSEC_MAY_SIGN; |
f96637be | 992 | cifs_dbg(FYI, "packet signing now required\n"); |
04912d6a | 993 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
f96637be | 994 | cifs_dbg(FYI, "packet signing disabled\n"); |
762e5ab7 SF |
995 | } |
996 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
997 | return count; |
998 | } | |
f984c7b9 | 999 | |
97a32539 AD |
1000 | static const struct proc_ops cifs_security_flags_proc_ops = { |
1001 | .proc_open = cifs_security_flags_proc_open, | |
1002 | .proc_read = seq_read, | |
1003 | .proc_lseek = seq_lseek, | |
1004 | .proc_release = single_release, | |
1005 | .proc_write = cifs_security_flags_proc_write, | |
f984c7b9 | 1006 | }; |
94b0595a AA |
1007 | |
1008 | /* To make it easier to debug, can help to show mount params */ | |
1009 | static int cifs_mount_params_proc_show(struct seq_file *m, void *v) | |
1010 | { | |
1011 | const struct fs_parameter_spec *p; | |
1012 | const char *type; | |
1013 | ||
1014 | for (p = smb3_fs_parameters; p->name; p++) { | |
1015 | /* cannot use switch with pointers... */ | |
1016 | if (!p->type) { | |
1017 | if (p->flags == fs_param_neg_with_no) | |
1018 | type = "noflag"; | |
1019 | else | |
1020 | type = "flag"; | |
1021 | } else if (p->type == fs_param_is_bool) | |
1022 | type = "bool"; | |
1023 | else if (p->type == fs_param_is_u32) | |
1024 | type = "u32"; | |
1025 | else if (p->type == fs_param_is_u64) | |
1026 | type = "u64"; | |
1027 | else if (p->type == fs_param_is_string) | |
1028 | type = "string"; | |
1029 | else | |
1030 | type = "unknown"; | |
1031 | ||
1032 | seq_printf(m, "%s:%s\n", p->name, type); | |
1033 | } | |
1034 | ||
1035 | return 0; | |
1036 | } | |
1037 | ||
1038 | static int cifs_mount_params_proc_open(struct inode *inode, struct file *file) | |
1039 | { | |
1040 | return single_open(file, cifs_mount_params_proc_show, NULL); | |
1041 | } | |
1042 | ||
1043 | static const struct proc_ops cifs_mount_params_proc_ops = { | |
1044 | .proc_open = cifs_mount_params_proc_open, | |
1045 | .proc_read = seq_read, | |
1046 | .proc_lseek = seq_lseek, | |
1047 | .proc_release = single_release, | |
1048 | /* No need for write for now */ | |
1049 | /* .proc_write = cifs_mount_params_proc_write, */ | |
1050 | }; | |
1051 | ||
90c81e0b | 1052 | #else |
e086fcea | 1053 | inline void cifs_proc_init(void) |
90c81e0b SF |
1054 | { |
1055 | } | |
1056 | ||
e086fcea | 1057 | inline void cifs_proc_clean(void) |
90c81e0b SF |
1058 | { |
1059 | } | |
1060 | #endif /* PROC_FS */ |