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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"); | |
0fdfef9a | 361 | |
03e9bb1a SP |
362 | if (server->rdma) |
363 | seq_printf(m, "\nRDMA "); | |
364 | seq_printf(m, "\nTCP status: %d Instance: %d" | |
365 | "\nLocal Users To Server: %d SecMode: 0x%x Req On Wire: %d", | |
366 | server->tcpStatus, | |
367 | server->reconnect_instance, | |
368 | server->srv_count, | |
369 | server->sec_mode, in_flight(server)); | |
370 | ||
371 | seq_printf(m, "\nIn Send: %d In MaxReq Wait: %d", | |
372 | atomic_read(&server->in_send), | |
373 | atomic_read(&server->num_waiters)); | |
374 | ||
375 | seq_printf(m, "\n\n\tSessions: "); | |
376 | i = 0; | |
14fbf50d | 377 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 378 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d | 379 | smb_ses_list); |
03e9bb1a | 380 | i++; |
14fbf50d JL |
381 | if ((ses->serverDomain == NULL) || |
382 | (ses->serverOS == NULL) || | |
383 | (ses->serverNOS == NULL)) { | |
40f077a0 | 384 | seq_printf(m, "\n\t%d) Address: %s Uses: %d Capability: 0x%x\tSession Status: %d ", |
b438fcf1 | 385 | i, ses->ip_addr, ses->ses_count, |
1fa089ec SF |
386 | ses->capabilities, ses->status); |
387 | if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) | |
03e9bb1a | 388 | seq_printf(m, "Guest "); |
1fa089ec | 389 | else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL) |
03e9bb1a | 390 | seq_printf(m, "Anonymous "); |
14fbf50d JL |
391 | } else { |
392 | seq_printf(m, | |
03e9bb1a SP |
393 | "\n\t%d) Name: %s Domain: %s Uses: %d OS: %s " |
394 | "\n\tNOS: %s\tCapability: 0x%x" | |
395 | "\n\tSMB session status: %d ", | |
b438fcf1 | 396 | i, ses->ip_addr, ses->serverDomain, |
14fbf50d | 397 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 398 | ses->capabilities, ses->status); |
14fbf50d | 399 | } |
8e84a61a | 400 | |
03e9bb1a | 401 | seq_printf(m, "\n\tSecurity type: %s ", |
0b0430c6 | 402 | get_security_type_str(server->ops->select_sectype(server, ses->sectype))); |
8e84a61a | 403 | |
b63a9de0 SF |
404 | /* dump session id helpful for use with network trace */ |
405 | seq_printf(m, " SessionId: 0x%llx", ses->Suid); | |
ffd1ef1e SF |
406 | if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) |
407 | seq_puts(m, " encrypted"); | |
408 | if (ses->sign) | |
409 | seq_puts(m, " signed"); | |
131afd0b | 410 | |
aadd69ca PA |
411 | seq_printf(m, "\n\tUser: %d Cred User: %d", |
412 | from_kuid(&init_user_ns, ses->linux_uid), | |
413 | from_kuid(&init_user_ns, ses->cred_uid)); | |
414 | ||
85150929 | 415 | if (ses->chan_count > 1) { |
03e9bb1a | 416 | seq_printf(m, "\n\n\tExtra Channels: %zu ", |
85150929 AA |
417 | ses->chan_count-1); |
418 | for (j = 1; j < ses->chan_count; j++) | |
419 | cifs_dump_channel(m, j, &ses->chans[j]); | |
420 | } | |
421 | ||
03e9bb1a | 422 | seq_puts(m, "\n\n\tShares: "); |
f1987b44 | 423 | j = 0; |
02cf5905 AA |
424 | |
425 | seq_printf(m, "\n\t%d) IPC: ", j); | |
426 | if (ses->tcon_ipc) | |
427 | cifs_debug_tcon(m, ses->tcon_ipc); | |
428 | else | |
429 | seq_puts(m, "none\n"); | |
430 | ||
f1987b44 | 431 | list_for_each(tmp3, &ses->tcon_list) { |
96daf2b0 | 432 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
433 | tcon_list); |
434 | ++j; | |
02cf5905 AA |
435 | seq_printf(m, "\n\t%d) ", j); |
436 | cifs_debug_tcon(m, tcon); | |
f1987b44 JL |
437 | } |
438 | ||
bc0fe8b2 | 439 | spin_lock(&ses->iface_lock); |
115d5d28 | 440 | if (ses->iface_count) |
03e9bb1a | 441 | seq_printf(m, "\n\n\tServer interfaces: %zu", |
115d5d28 | 442 | ses->iface_count); |
bc0fe8b2 | 443 | for (j = 0; j < ses->iface_count; j++) { |
85150929 AA |
444 | struct cifs_server_iface *iface; |
445 | ||
446 | iface = &ses->iface_list[j]; | |
03e9bb1a | 447 | seq_printf(m, "\n\t%d)", j+1); |
85150929 AA |
448 | cifs_dump_iface(m, iface); |
449 | if (is_ses_using_iface(ses, iface)) | |
450 | seq_puts(m, "\t\t[CONNECTED]\n"); | |
bc0fe8b2 AA |
451 | } |
452 | spin_unlock(&ses->iface_lock); | |
1da177e4 | 453 | } |
03e9bb1a SP |
454 | if (i == 0) |
455 | seq_printf(m, "\n\t\t[NONE]"); | |
456 | ||
457 | seq_puts(m, "\n\n\tMIDs: "); | |
458 | spin_lock(&GlobalMid_Lock); | |
459 | list_for_each(tmp3, &server->pending_mid_q) { | |
460 | mid_entry = list_entry(tmp3, struct mid_q_entry, | |
461 | qhead); | |
462 | seq_printf(m, "\n\tState: %d com: %d pid:" | |
463 | " %d cbdata: %p mid %llu\n", | |
464 | mid_entry->mid_state, | |
465 | le16_to_cpu(mid_entry->command), | |
466 | mid_entry->pid, | |
467 | mid_entry->callback_data, | |
468 | mid_entry->mid); | |
469 | } | |
470 | spin_unlock(&GlobalMid_Lock); | |
471 | seq_printf(m, "\n--\n"); | |
1da177e4 | 472 | } |
03e9bb1a SP |
473 | if (c == 0) |
474 | seq_printf(m, "\n\t[NONE]"); | |
475 | ||
3f9bcca7 | 476 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 477 | seq_putc(m, '\n'); |
20fab0da | 478 | cifs_swn_dump(m); |
b7fd0fa0 | 479 | |
1da177e4 | 480 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
481 | return 0; |
482 | } | |
1da177e4 | 483 | |
f984c7b9 AD |
484 | static ssize_t cifs_stats_proc_write(struct file *file, |
485 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 486 | { |
28e2aed2 | 487 | bool bv; |
221601c3 | 488 | int rc; |
f1987b44 JL |
489 | struct list_head *tmp1, *tmp2, *tmp3; |
490 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
491 | struct cifs_ses *ses; |
492 | struct cifs_tcon *tcon; | |
1047abc1 | 493 | |
1404297e KC |
494 | rc = kstrtobool_from_user(buffer, count, &bv); |
495 | if (rc == 0) { | |
4498eed5 | 496 | #ifdef CONFIG_CIFS_STATS2 |
468d6779 SF |
497 | int i; |
498 | ||
4498eed5 SF |
499 | atomic_set(&totBufAllocCount, 0); |
500 | atomic_set(&totSmBufAllocCount, 0); | |
501 | #endif /* CONFIG_CIFS_STATS2 */ | |
2c887635 SF |
502 | atomic_set(&tcpSesReconnectCount, 0); |
503 | atomic_set(&tconInfoReconnectCount, 0); | |
504 | ||
c281bc0c SF |
505 | spin_lock(&GlobalMid_Lock); |
506 | GlobalMaxActiveXid = 0; | |
507 | GlobalCurrentXid = 0; | |
508 | spin_unlock(&GlobalMid_Lock); | |
3f9bcca7 | 509 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
510 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
511 | server = list_entry(tmp1, struct TCP_Server_Info, | |
512 | tcp_ses_list); | |
1b63f184 | 513 | server->max_in_flight = 0; |
468d6779 | 514 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
515 | for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { |
516 | atomic_set(&server->num_cmds[i], 0); | |
468d6779 | 517 | atomic_set(&server->smb2slowcmd[i], 0); |
433b8dd7 SF |
518 | server->time_per_cmd[i] = 0; |
519 | server->slowest_cmd[i] = 0; | |
520 | server->fastest_cmd[0] = 0; | |
521 | } | |
468d6779 | 522 | #endif /* CONFIG_CIFS_STATS2 */ |
c2b3382c | 523 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 524 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 525 | smb_ses_list); |
f1987b44 JL |
526 | list_for_each(tmp3, &ses->tcon_list) { |
527 | tcon = list_entry(tmp3, | |
96daf2b0 | 528 | struct cifs_tcon, |
f1987b44 JL |
529 | tcon_list); |
530 | atomic_set(&tcon->num_smbs_sent, 0); | |
c281bc0c SF |
531 | spin_lock(&tcon->stat_lock); |
532 | tcon->bytes_read = 0; | |
533 | tcon->bytes_written = 0; | |
534 | spin_unlock(&tcon->stat_lock); | |
44c58186 PS |
535 | if (server->ops->clear_stats) |
536 | server->ops->clear_stats(tcon); | |
f1987b44 JL |
537 | } |
538 | } | |
1047abc1 | 539 | } |
3f9bcca7 | 540 | spin_unlock(&cifs_tcp_ses_lock); |
1404297e KC |
541 | } else { |
542 | return rc; | |
1047abc1 SF |
543 | } |
544 | ||
221601c3 | 545 | return count; |
1047abc1 SF |
546 | } |
547 | ||
f984c7b9 | 548 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 549 | { |
f984c7b9 | 550 | int i; |
468d6779 SF |
551 | #ifdef CONFIG_CIFS_STATS2 |
552 | int j; | |
553 | #endif /* STATS2 */ | |
a506ccb4 | 554 | struct list_head *tmp2, *tmp3; |
f1987b44 | 555 | struct TCP_Server_Info *server; |
96daf2b0 SF |
556 | struct cifs_ses *ses; |
557 | struct cifs_tcon *tcon; | |
1da177e4 | 558 | |
468d6779 | 559 | seq_printf(m, "Resources in use\nCIFS Session: %d\n", |
1da177e4 | 560 | sesInfoAllocCount.counter); |
f984c7b9 | 561 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 562 | tconInfoAllocCount.counter); |
f984c7b9 | 563 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
564 | bufAllocCount.counter, |
565 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 566 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 567 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 568 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 569 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 570 | atomic_read(&totBufAllocCount), |
221601c3 | 571 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
572 | #endif /* CONFIG_CIFS_STATS2 */ |
573 | ||
8097531a | 574 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 575 | seq_printf(m, |
1da177e4 | 576 | "\n%d session %d share reconnects\n", |
221601c3 | 577 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 578 | |
f984c7b9 | 579 | seq_printf(m, |
1da177e4 | 580 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 581 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
582 | |
583 | i = 0; | |
3f9bcca7 | 584 | spin_lock(&cifs_tcp_ses_lock); |
a506ccb4 | 585 | list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { |
1b63f184 | 586 | seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight); |
468d6779 | 587 | #ifdef CONFIG_CIFS_STATS2 |
433b8dd7 SF |
588 | seq_puts(m, "\nTotal time spent processing by command. Time "); |
589 | seq_printf(m, "units are jiffies (%d per second)\n", HZ); | |
590 | seq_puts(m, " SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n"); | |
591 | seq_puts(m, " --------\t------\t----------\t-------\t-------\n"); | |
592 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) | |
593 | seq_printf(m, " %d\t\t%d\t%llu\t\t%u\t%u\n", j, | |
594 | atomic_read(&server->num_cmds[j]), | |
595 | server->time_per_cmd[j], | |
596 | server->fastest_cmd[j], | |
597 | server->slowest_cmd[j]); | |
468d6779 SF |
598 | for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) |
599 | if (atomic_read(&server->smb2slowcmd[j])) | |
433b8dd7 | 600 | seq_printf(m, " %d slow responses from %s for command %d\n", |
468d6779 SF |
601 | atomic_read(&server->smb2slowcmd[j]), |
602 | server->hostname, j); | |
603 | #endif /* STATS2 */ | |
f1987b44 | 604 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 605 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
606 | smb_ses_list); |
607 | list_for_each(tmp3, &ses->tcon_list) { | |
608 | tcon = list_entry(tmp3, | |
96daf2b0 | 609 | struct cifs_tcon, |
f1987b44 JL |
610 | tcon_list); |
611 | i++; | |
612 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
613 | if (tcon->need_reconnect) | |
614 | seq_puts(m, "\tDISCONNECTED "); | |
44c58186 PS |
615 | seq_printf(m, "\nSMBs: %d", |
616 | atomic_read(&tcon->num_smbs_sent)); | |
617 | if (server->ops->print_stats) | |
618 | server->ops->print_stats(m, tcon); | |
f1987b44 JL |
619 | } |
620 | } | |
1da177e4 | 621 | } |
3f9bcca7 | 622 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 623 | |
f984c7b9 AD |
624 | seq_putc(m, '\n'); |
625 | return 0; | |
626 | } | |
221601c3 | 627 | |
f984c7b9 AD |
628 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
629 | { | |
630 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 631 | } |
f984c7b9 | 632 | |
97a32539 AD |
633 | static const struct proc_ops cifs_stats_proc_ops = { |
634 | .proc_open = cifs_stats_proc_open, | |
635 | .proc_read = seq_read, | |
636 | .proc_lseek = seq_lseek, | |
637 | .proc_release = single_release, | |
638 | .proc_write = cifs_stats_proc_write, | |
f984c7b9 | 639 | }; |
1da177e4 | 640 | |
d8ec913b LL |
641 | #ifdef CONFIG_CIFS_SMB_DIRECT |
642 | #define PROC_FILE_DEFINE(name) \ | |
643 | static ssize_t name##_write(struct file *file, const char __user *buffer, \ | |
644 | size_t count, loff_t *ppos) \ | |
645 | { \ | |
646 | int rc; \ | |
647 | rc = kstrtoint_from_user(buffer, count, 10, & name); \ | |
648 | if (rc) \ | |
649 | return rc; \ | |
650 | return count; \ | |
651 | } \ | |
652 | static int name##_proc_show(struct seq_file *m, void *v) \ | |
653 | { \ | |
654 | seq_printf(m, "%d\n", name ); \ | |
655 | return 0; \ | |
656 | } \ | |
657 | static int name##_open(struct inode *inode, struct file *file) \ | |
658 | { \ | |
659 | return single_open(file, name##_proc_show, NULL); \ | |
660 | } \ | |
661 | \ | |
97a32539 AD |
662 | static const struct proc_ops cifs_##name##_proc_fops = { \ |
663 | .proc_open = name##_open, \ | |
664 | .proc_read = seq_read, \ | |
665 | .proc_lseek = seq_lseek, \ | |
666 | .proc_release = single_release, \ | |
667 | .proc_write = name##_write, \ | |
d8ec913b LL |
668 | } |
669 | ||
d8ec913b LL |
670 | PROC_FILE_DEFINE(rdma_readwrite_threshold); |
671 | PROC_FILE_DEFINE(smbd_max_frmr_depth); | |
672 | PROC_FILE_DEFINE(smbd_keep_alive_interval); | |
673 | PROC_FILE_DEFINE(smbd_max_receive_size); | |
674 | PROC_FILE_DEFINE(smbd_max_fragmented_recv_size); | |
675 | PROC_FILE_DEFINE(smbd_max_send_size); | |
676 | PROC_FILE_DEFINE(smbd_send_credit_target); | |
677 | PROC_FILE_DEFINE(smbd_receive_credit_max); | |
678 | #endif | |
679 | ||
1da177e4 | 680 | static struct proc_dir_entry *proc_fs_cifs; |
97a32539 AD |
681 | static const struct proc_ops cifsFYI_proc_ops; |
682 | static const struct proc_ops cifs_lookup_cache_proc_ops; | |
683 | static const struct proc_ops traceSMB_proc_ops; | |
684 | static const struct proc_ops cifs_security_flags_proc_ops; | |
685 | static const struct proc_ops cifs_linux_ext_proc_ops; | |
94b0595a | 686 | static const struct proc_ops cifs_mount_params_proc_ops; |
1da177e4 LT |
687 | |
688 | void | |
689 | cifs_proc_init(void) | |
690 | { | |
36a5aeb8 | 691 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
692 | if (proc_fs_cifs == NULL) |
693 | return; | |
694 | ||
3f3942ac CH |
695 | proc_create_single("DebugData", 0, proc_fs_cifs, |
696 | cifs_debug_data_proc_show); | |
1da177e4 | 697 | |
dfe33f9a SF |
698 | proc_create_single("open_files", 0400, proc_fs_cifs, |
699 | cifs_debug_files_proc_show); | |
700 | ||
97a32539 AD |
701 | proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_ops); |
702 | proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_ops); | |
703 | proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_ops); | |
6539e7f3 | 704 | proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs, |
97a32539 | 705 | &cifs_linux_ext_proc_ops); |
6539e7f3 | 706 | proc_create("SecurityFlags", 0644, proc_fs_cifs, |
97a32539 | 707 | &cifs_security_flags_proc_ops); |
6539e7f3 | 708 | proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, |
97a32539 | 709 | &cifs_lookup_cache_proc_ops); |
54be1f6c | 710 | |
94b0595a AA |
711 | proc_create("mount_params", 0444, proc_fs_cifs, &cifs_mount_params_proc_ops); |
712 | ||
54be1f6c | 713 | #ifdef CONFIG_CIFS_DFS_UPCALL |
97a32539 | 714 | proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_ops); |
54be1f6c PA |
715 | #endif |
716 | ||
d8ec913b | 717 | #ifdef CONFIG_CIFS_SMB_DIRECT |
6539e7f3 | 718 | proc_create("rdma_readwrite_threshold", 0644, proc_fs_cifs, |
d8ec913b | 719 | &cifs_rdma_readwrite_threshold_proc_fops); |
6539e7f3 | 720 | proc_create("smbd_max_frmr_depth", 0644, proc_fs_cifs, |
d8ec913b | 721 | &cifs_smbd_max_frmr_depth_proc_fops); |
6539e7f3 | 722 | proc_create("smbd_keep_alive_interval", 0644, proc_fs_cifs, |
d8ec913b | 723 | &cifs_smbd_keep_alive_interval_proc_fops); |
6539e7f3 | 724 | proc_create("smbd_max_receive_size", 0644, proc_fs_cifs, |
d8ec913b | 725 | &cifs_smbd_max_receive_size_proc_fops); |
6539e7f3 | 726 | proc_create("smbd_max_fragmented_recv_size", 0644, proc_fs_cifs, |
d8ec913b | 727 | &cifs_smbd_max_fragmented_recv_size_proc_fops); |
6539e7f3 | 728 | proc_create("smbd_max_send_size", 0644, proc_fs_cifs, |
d8ec913b | 729 | &cifs_smbd_max_send_size_proc_fops); |
6539e7f3 | 730 | proc_create("smbd_send_credit_target", 0644, proc_fs_cifs, |
d8ec913b | 731 | &cifs_smbd_send_credit_target_proc_fops); |
6539e7f3 | 732 | proc_create("smbd_receive_credit_max", 0644, proc_fs_cifs, |
d8ec913b LL |
733 | &cifs_smbd_receive_credit_max_proc_fops); |
734 | #endif | |
1da177e4 LT |
735 | } |
736 | ||
737 | void | |
738 | cifs_proc_clean(void) | |
739 | { | |
740 | if (proc_fs_cifs == NULL) | |
741 | return; | |
742 | ||
743 | remove_proc_entry("DebugData", proc_fs_cifs); | |
dfe33f9a | 744 | remove_proc_entry("open_files", proc_fs_cifs); |
1da177e4 LT |
745 | remove_proc_entry("cifsFYI", proc_fs_cifs); |
746 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
1da177e4 | 747 | remove_proc_entry("Stats", proc_fs_cifs); |
221601c3 | 748 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 749 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 750 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
94b0595a | 751 | remove_proc_entry("mount_params", proc_fs_cifs); |
54be1f6c PA |
752 | |
753 | #ifdef CONFIG_CIFS_DFS_UPCALL | |
754 | remove_proc_entry("dfscache", proc_fs_cifs); | |
755 | #endif | |
d8ec913b LL |
756 | #ifdef CONFIG_CIFS_SMB_DIRECT |
757 | remove_proc_entry("rdma_readwrite_threshold", proc_fs_cifs); | |
758 | remove_proc_entry("smbd_max_frmr_depth", proc_fs_cifs); | |
759 | remove_proc_entry("smbd_keep_alive_interval", proc_fs_cifs); | |
760 | remove_proc_entry("smbd_max_receive_size", proc_fs_cifs); | |
761 | remove_proc_entry("smbd_max_fragmented_recv_size", proc_fs_cifs); | |
762 | remove_proc_entry("smbd_max_send_size", proc_fs_cifs); | |
763 | remove_proc_entry("smbd_send_credit_target", proc_fs_cifs); | |
764 | remove_proc_entry("smbd_receive_credit_max", proc_fs_cifs); | |
765 | #endif | |
36a5aeb8 | 766 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
767 | } |
768 | ||
f984c7b9 | 769 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 770 | { |
f984c7b9 AD |
771 | seq_printf(m, "%d\n", cifsFYI); |
772 | return 0; | |
773 | } | |
1da177e4 | 774 | |
f984c7b9 AD |
775 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
776 | { | |
777 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 778 | } |
f984c7b9 AD |
779 | |
780 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
781 | size_t count, loff_t *ppos) | |
1da177e4 | 782 | { |
1404297e | 783 | char c[2] = { '\0' }; |
28e2aed2 | 784 | bool bv; |
1da177e4 LT |
785 | int rc; |
786 | ||
1404297e | 787 | rc = get_user(c[0], buffer); |
1da177e4 LT |
788 | if (rc) |
789 | return rc; | |
1404297e | 790 | if (strtobool(c, &bv) == 0) |
28e2aed2 | 791 | cifsFYI = bv; |
1404297e KC |
792 | else if ((c[0] > '1') && (c[0] <= '9')) |
793 | cifsFYI = (int) (c[0] - '0'); /* see cifs_debug.h for meanings */ | |
25ad1cbd RS |
794 | else |
795 | return -EINVAL; | |
1da177e4 LT |
796 | |
797 | return count; | |
798 | } | |
799 | ||
97a32539 AD |
800 | static const struct proc_ops cifsFYI_proc_ops = { |
801 | .proc_open = cifsFYI_proc_open, | |
802 | .proc_read = seq_read, | |
803 | .proc_lseek = seq_lseek, | |
804 | .proc_release = single_release, | |
805 | .proc_write = cifsFYI_proc_write, | |
f984c7b9 | 806 | }; |
1da177e4 | 807 | |
f984c7b9 AD |
808 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
809 | { | |
810 | seq_printf(m, "%d\n", linuxExtEnabled); | |
811 | return 0; | |
812 | } | |
1da177e4 | 813 | |
f984c7b9 AD |
814 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
815 | { | |
816 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 817 | } |
f984c7b9 AD |
818 | |
819 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
820 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 821 | { |
221601c3 SF |
822 | int rc; |
823 | ||
1404297e | 824 | rc = kstrtobool_from_user(buffer, count, &linuxExtEnabled); |
221601c3 SF |
825 | if (rc) |
826 | return rc; | |
28e2aed2 | 827 | |
221601c3 | 828 | return count; |
1da177e4 LT |
829 | } |
830 | ||
97a32539 AD |
831 | static const struct proc_ops cifs_linux_ext_proc_ops = { |
832 | .proc_open = cifs_linux_ext_proc_open, | |
833 | .proc_read = seq_read, | |
834 | .proc_lseek = seq_lseek, | |
835 | .proc_release = single_release, | |
836 | .proc_write = cifs_linux_ext_proc_write, | |
f984c7b9 | 837 | }; |
1da177e4 | 838 | |
f984c7b9 | 839 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 840 | { |
f984c7b9 AD |
841 | seq_printf(m, "%d\n", lookupCacheEnabled); |
842 | return 0; | |
843 | } | |
1da177e4 | 844 | |
f984c7b9 AD |
845 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
846 | { | |
847 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 848 | } |
f984c7b9 AD |
849 | |
850 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
851 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 852 | { |
1da177e4 LT |
853 | int rc; |
854 | ||
1404297e | 855 | rc = kstrtobool_from_user(buffer, count, &lookupCacheEnabled); |
1da177e4 LT |
856 | if (rc) |
857 | return rc; | |
28e2aed2 | 858 | |
1da177e4 LT |
859 | return count; |
860 | } | |
1da177e4 | 861 | |
97a32539 AD |
862 | static const struct proc_ops cifs_lookup_cache_proc_ops = { |
863 | .proc_open = cifs_lookup_cache_proc_open, | |
864 | .proc_read = seq_read, | |
865 | .proc_lseek = seq_lseek, | |
866 | .proc_release = single_release, | |
867 | .proc_write = cifs_lookup_cache_proc_write, | |
f984c7b9 | 868 | }; |
1da177e4 | 869 | |
f984c7b9 AD |
870 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
871 | { | |
872 | seq_printf(m, "%d\n", traceSMB); | |
873 | return 0; | |
874 | } | |
1da177e4 | 875 | |
f984c7b9 AD |
876 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
877 | { | |
878 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 879 | } |
f984c7b9 AD |
880 | |
881 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
882 | size_t count, loff_t *ppos) | |
1da177e4 | 883 | { |
1da177e4 LT |
884 | int rc; |
885 | ||
1404297e | 886 | rc = kstrtobool_from_user(buffer, count, &traceSMB); |
1da177e4 LT |
887 | if (rc) |
888 | return rc; | |
28e2aed2 | 889 | |
1da177e4 LT |
890 | return count; |
891 | } | |
892 | ||
97a32539 AD |
893 | static const struct proc_ops traceSMB_proc_ops = { |
894 | .proc_open = traceSMB_proc_open, | |
895 | .proc_read = seq_read, | |
896 | .proc_lseek = seq_lseek, | |
897 | .proc_release = single_release, | |
898 | .proc_write = traceSMB_proc_write, | |
f984c7b9 | 899 | }; |
1da177e4 | 900 | |
f984c7b9 AD |
901 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
902 | { | |
04912d6a | 903 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
904 | return 0; |
905 | } | |
1da177e4 | 906 | |
f984c7b9 AD |
907 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
908 | { | |
909 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 910 | } |
f984c7b9 | 911 | |
52dfb446 JL |
912 | /* |
913 | * Ensure that if someone sets a MUST flag, that we disable all other MAY | |
914 | * flags except for the ones corresponding to the given MUST flag. If there are | |
915 | * multiple MUST flags, then try to prefer more secure ones. | |
916 | */ | |
917 | static void | |
918 | cifs_security_flags_handle_must_flags(unsigned int *flags) | |
919 | { | |
920 | unsigned int signflags = *flags & CIFSSEC_MUST_SIGN; | |
921 | ||
922 | if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) | |
923 | *flags = CIFSSEC_MUST_KRB5; | |
924 | else if ((*flags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) | |
925 | *flags = CIFSSEC_MUST_NTLMSSP; | |
926 | else if ((*flags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) | |
927 | *flags = CIFSSEC_MUST_NTLMV2; | |
52dfb446 JL |
928 | |
929 | *flags |= signflags; | |
930 | } | |
931 | ||
f984c7b9 AD |
932 | static ssize_t cifs_security_flags_proc_write(struct file *file, |
933 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 934 | { |
7715dad8 | 935 | int rc; |
bdc4bf6e SF |
936 | unsigned int flags; |
937 | char flags_string[12]; | |
28e2aed2 | 938 | bool bv; |
bdc4bf6e | 939 | |
221601c3 | 940 | if ((count < 1) || (count > 11)) |
3979877e | 941 | return -EINVAL; |
1da177e4 | 942 | |
bdc4bf6e | 943 | memset(flags_string, 0, 12); |
3979877e | 944 | |
221601c3 | 945 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 946 | return -EFAULT; |
3979877e | 947 | |
221601c3 | 948 | if (count < 3) { |
bdc4bf6e | 949 | /* single char or single char followed by null */ |
1404297e | 950 | if (strtobool(flags_string, &bv) == 0) { |
28e2aed2 | 951 | global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF; |
a013689d | 952 | return count; |
1404297e | 953 | } else if (!isdigit(flags_string[0])) { |
7715dad8 JL |
954 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", |
955 | flags_string); | |
a013689d SF |
956 | return -EINVAL; |
957 | } | |
bdc4bf6e | 958 | } |
bdc4bf6e | 959 | |
7715dad8 JL |
960 | /* else we have a number */ |
961 | rc = kstrtouint(flags_string, 0, &flags); | |
962 | if (rc) { | |
963 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", | |
964 | flags_string); | |
965 | return rc; | |
966 | } | |
bdc4bf6e | 967 | |
f96637be | 968 | cifs_dbg(FYI, "sec flags 0x%x\n", flags); |
bdc4bf6e | 969 | |
7715dad8 JL |
970 | if (flags == 0) { |
971 | cifs_dbg(VFS, "Invalid SecurityFlags: %s\n", flags_string); | |
bdc4bf6e SF |
972 | return -EINVAL; |
973 | } | |
1da177e4 | 974 | |
221601c3 | 975 | if (flags & ~CIFSSEC_MASK) { |
7715dad8 | 976 | cifs_dbg(VFS, "Unsupported security flags: 0x%x\n", |
f96637be | 977 | flags & ~CIFSSEC_MASK); |
bdc4bf6e SF |
978 | return -EINVAL; |
979 | } | |
7715dad8 | 980 | |
52dfb446 JL |
981 | cifs_security_flags_handle_must_flags(&flags); |
982 | ||
bdc4bf6e | 983 | /* flags look ok - update the global security flags for cifs module */ |
04912d6a JL |
984 | global_secflags = flags; |
985 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 986 | /* requiring signing implies signing is allowed */ |
04912d6a | 987 | global_secflags |= CIFSSEC_MAY_SIGN; |
f96637be | 988 | cifs_dbg(FYI, "packet signing now required\n"); |
04912d6a | 989 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
f96637be | 990 | cifs_dbg(FYI, "packet signing disabled\n"); |
762e5ab7 SF |
991 | } |
992 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
993 | return count; |
994 | } | |
f984c7b9 | 995 | |
97a32539 AD |
996 | static const struct proc_ops cifs_security_flags_proc_ops = { |
997 | .proc_open = cifs_security_flags_proc_open, | |
998 | .proc_read = seq_read, | |
999 | .proc_lseek = seq_lseek, | |
1000 | .proc_release = single_release, | |
1001 | .proc_write = cifs_security_flags_proc_write, | |
f984c7b9 | 1002 | }; |
94b0595a AA |
1003 | |
1004 | /* To make it easier to debug, can help to show mount params */ | |
1005 | static int cifs_mount_params_proc_show(struct seq_file *m, void *v) | |
1006 | { | |
1007 | const struct fs_parameter_spec *p; | |
1008 | const char *type; | |
1009 | ||
1010 | for (p = smb3_fs_parameters; p->name; p++) { | |
1011 | /* cannot use switch with pointers... */ | |
1012 | if (!p->type) { | |
1013 | if (p->flags == fs_param_neg_with_no) | |
1014 | type = "noflag"; | |
1015 | else | |
1016 | type = "flag"; | |
1017 | } else if (p->type == fs_param_is_bool) | |
1018 | type = "bool"; | |
1019 | else if (p->type == fs_param_is_u32) | |
1020 | type = "u32"; | |
1021 | else if (p->type == fs_param_is_u64) | |
1022 | type = "u64"; | |
1023 | else if (p->type == fs_param_is_string) | |
1024 | type = "string"; | |
1025 | else | |
1026 | type = "unknown"; | |
1027 | ||
1028 | seq_printf(m, "%s:%s\n", p->name, type); | |
1029 | } | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | static int cifs_mount_params_proc_open(struct inode *inode, struct file *file) | |
1035 | { | |
1036 | return single_open(file, cifs_mount_params_proc_show, NULL); | |
1037 | } | |
1038 | ||
1039 | static const struct proc_ops cifs_mount_params_proc_ops = { | |
1040 | .proc_open = cifs_mount_params_proc_open, | |
1041 | .proc_read = seq_read, | |
1042 | .proc_lseek = seq_lseek, | |
1043 | .proc_release = single_release, | |
1044 | /* No need for write for now */ | |
1045 | /* .proc_write = cifs_mount_params_proc_write, */ | |
1046 | }; | |
1047 | ||
90c81e0b | 1048 | #else |
e086fcea | 1049 | inline void cifs_proc_init(void) |
90c81e0b SF |
1050 | { |
1051 | } | |
1052 | ||
e086fcea | 1053 | inline void cifs_proc_clean(void) |
90c81e0b SF |
1054 | { |
1055 | } | |
1056 | #endif /* PROC_FS */ |