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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/cifs/connect.c | |
3 | * | |
75865f8c | 4 | * Copyright (C) International Business Machines Corp., 2002,2007 |
1da177e4 LT |
5 | * Author(s): Steve French (sfrench@us.ibm.com) |
6 | * | |
7 | * This library is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU Lesser General Public License as published | |
9 | * by the Free Software Foundation; either version 2.1 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
15 | * the GNU Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public License | |
18 | * along with this library; if not, write to the Free Software | |
fb8c4b14 | 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
1da177e4 LT |
20 | */ |
21 | #include <linux/fs.h> | |
22 | #include <linux/net.h> | |
23 | #include <linux/string.h> | |
24 | #include <linux/list.h> | |
25 | #include <linux/wait.h> | |
26 | #include <linux/ipv6.h> | |
27 | #include <linux/pagemap.h> | |
28 | #include <linux/ctype.h> | |
29 | #include <linux/utsname.h> | |
30 | #include <linux/mempool.h> | |
b8643e1b | 31 | #include <linux/delay.h> |
f191401f | 32 | #include <linux/completion.h> |
aaf737ad | 33 | #include <linux/kthread.h> |
0ae0efad | 34 | #include <linux/pagevec.h> |
7dfb7103 | 35 | #include <linux/freezer.h> |
1da177e4 LT |
36 | #include <asm/uaccess.h> |
37 | #include <asm/processor.h> | |
38 | #include "cifspdu.h" | |
39 | #include "cifsglob.h" | |
40 | #include "cifsproto.h" | |
41 | #include "cifs_unicode.h" | |
42 | #include "cifs_debug.h" | |
43 | #include "cifs_fs_sb.h" | |
44 | #include "ntlmssp.h" | |
45 | #include "nterr.h" | |
46 | #include "rfc1002pdu.h" | |
a2653eba | 47 | #include "cn_cifs.h" |
1da177e4 LT |
48 | |
49 | #define CIFS_PORT 445 | |
50 | #define RFC1001_PORT 139 | |
51 | ||
f191401f SF |
52 | static DECLARE_COMPLETION(cifsd_complete); |
53 | ||
1da177e4 LT |
54 | extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, |
55 | unsigned char *p24); | |
56 | ||
57 | extern mempool_t *cifs_req_poolp; | |
58 | ||
59 | struct smb_vol { | |
60 | char *username; | |
61 | char *password; | |
62 | char *domainname; | |
63 | char *UNC; | |
64 | char *UNCip; | |
65 | char *in6_addr; /* ipv6 address as human readable form of in6_addr */ | |
66 | char *iocharset; /* local code page for mapping to and from Unicode */ | |
67 | char source_rfc1001_name[16]; /* netbios name of client */ | |
a10faeb2 | 68 | char target_rfc1001_name[16]; /* netbios name of server for Win9x/ME */ |
1da177e4 LT |
69 | uid_t linux_uid; |
70 | gid_t linux_gid; | |
71 | mode_t file_mode; | |
72 | mode_t dir_mode; | |
189acaae | 73 | unsigned secFlg; |
1da177e4 LT |
74 | unsigned rw:1; |
75 | unsigned retry:1; | |
76 | unsigned intr:1; | |
77 | unsigned setuids:1; | |
4523cc30 SF |
78 | unsigned override_uid:1; |
79 | unsigned override_gid:1; | |
1da177e4 LT |
80 | unsigned noperm:1; |
81 | unsigned no_psx_acl:1; /* set if posix acl support should be disabled */ | |
0a4b92c0 | 82 | unsigned cifs_acl:1; |
1da177e4 LT |
83 | unsigned no_xattr:1; /* set if xattr (EA) support should be disabled*/ |
84 | unsigned server_ino:1; /* use inode numbers from server ie UniqueId */ | |
85 | unsigned direct_io:1; | |
6a0b4824 | 86 | unsigned remap:1; /* set to remap seven reserved chars in filenames */ |
ac67055e | 87 | unsigned posix_paths:1; /* unset to not ask for posix pathnames. */ |
c18c842b | 88 | unsigned no_linux_ext:1; |
d7245c2c | 89 | unsigned sfu_emul:1; |
bf820679 | 90 | unsigned nullauth:1; /* attempt to authenticate with null user */ |
c46fa8ac SF |
91 | unsigned nocase; /* request case insensitive filenames */ |
92 | unsigned nobrl; /* disable sending byte range locks to srv */ | |
1da177e4 LT |
93 | unsigned int rsize; |
94 | unsigned int wsize; | |
95 | unsigned int sockopt; | |
96 | unsigned short int port; | |
fb8c4b14 | 97 | char *prepath; |
1da177e4 LT |
98 | }; |
99 | ||
fb8c4b14 | 100 | static int ipv4_connect(struct sockaddr_in *psin_server, |
1da177e4 | 101 | struct socket **csocket, |
fb8c4b14 SF |
102 | char *netb_name, |
103 | char *server_netb_name); | |
104 | static int ipv6_connect(struct sockaddr_in6 *psin_server, | |
1da177e4 LT |
105 | struct socket **csocket); |
106 | ||
107 | ||
fb8c4b14 | 108 | /* |
1da177e4 | 109 | * cifs tcp session reconnection |
fb8c4b14 | 110 | * |
1da177e4 LT |
111 | * mark tcp session as reconnecting so temporarily locked |
112 | * mark all smb sessions as reconnecting for tcp session | |
113 | * reconnect tcp session | |
114 | * wake up waiters on reconnection? - (not needed currently) | |
115 | */ | |
116 | ||
2cd646a2 | 117 | static int |
1da177e4 LT |
118 | cifs_reconnect(struct TCP_Server_Info *server) |
119 | { | |
120 | int rc = 0; | |
121 | struct list_head *tmp; | |
122 | struct cifsSesInfo *ses; | |
123 | struct cifsTconInfo *tcon; | |
fb8c4b14 | 124 | struct mid_q_entry *mid_entry; |
50c2f753 | 125 | |
1da177e4 | 126 | spin_lock(&GlobalMid_Lock); |
26f57364 | 127 | if (kthread_should_stop()) { |
fb8c4b14 | 128 | /* the demux thread will exit normally |
1da177e4 LT |
129 | next time through the loop */ |
130 | spin_unlock(&GlobalMid_Lock); | |
131 | return rc; | |
132 | } else | |
133 | server->tcpStatus = CifsNeedReconnect; | |
134 | spin_unlock(&GlobalMid_Lock); | |
135 | server->maxBuf = 0; | |
136 | ||
e4eb295d | 137 | cFYI(1, ("Reconnecting tcp session")); |
1da177e4 LT |
138 | |
139 | /* before reconnecting the tcp session, mark the smb session (uid) | |
140 | and the tid bad so they are not used until reconnected */ | |
141 | read_lock(&GlobalSMBSeslock); | |
142 | list_for_each(tmp, &GlobalSMBSessionList) { | |
143 | ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); | |
144 | if (ses->server) { | |
145 | if (ses->server == server) { | |
146 | ses->status = CifsNeedReconnect; | |
147 | ses->ipc_tid = 0; | |
148 | } | |
149 | } | |
150 | /* else tcp and smb sessions need reconnection */ | |
151 | } | |
152 | list_for_each(tmp, &GlobalTreeConnectionList) { | |
153 | tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); | |
26f57364 | 154 | if ((tcon) && (tcon->ses) && (tcon->ses->server == server)) |
1da177e4 | 155 | tcon->tidStatus = CifsNeedReconnect; |
1da177e4 LT |
156 | } |
157 | read_unlock(&GlobalSMBSeslock); | |
158 | /* do not want to be sending data on a socket we are freeing */ | |
fb8c4b14 SF |
159 | down(&server->tcpSem); |
160 | if (server->ssocket) { | |
467a8f8d | 161 | cFYI(1, ("State: 0x%x Flags: 0x%lx", server->ssocket->state, |
1da177e4 | 162 | server->ssocket->flags)); |
fb8c4b14 SF |
163 | server->ssocket->ops->shutdown(server->ssocket, SEND_SHUTDOWN); |
164 | cFYI(1, ("Post shutdown state: 0x%x Flags: 0x%lx", | |
467a8f8d | 165 | server->ssocket->state, |
1da177e4 LT |
166 | server->ssocket->flags)); |
167 | sock_release(server->ssocket); | |
168 | server->ssocket = NULL; | |
169 | } | |
170 | ||
171 | spin_lock(&GlobalMid_Lock); | |
172 | list_for_each(tmp, &server->pending_mid_q) { | |
173 | mid_entry = list_entry(tmp, struct | |
174 | mid_q_entry, | |
175 | qhead); | |
fb8c4b14 SF |
176 | if (mid_entry) { |
177 | if (mid_entry->midState == MID_REQUEST_SUBMITTED) { | |
09d1db5c SF |
178 | /* Mark other intransit requests as needing |
179 | retry so we do not immediately mark the | |
180 | session bad again (ie after we reconnect | |
181 | below) as they timeout too */ | |
1da177e4 LT |
182 | mid_entry->midState = MID_RETRY_NEEDED; |
183 | } | |
184 | } | |
185 | } | |
186 | spin_unlock(&GlobalMid_Lock); | |
fb8c4b14 | 187 | up(&server->tcpSem); |
1da177e4 | 188 | |
26f57364 | 189 | while ((!kthread_should_stop()) && (server->tcpStatus != CifsGood)) { |
6c3d8909 | 190 | try_to_freeze(); |
fb8c4b14 SF |
191 | if (server->protocolType == IPV6) { |
192 | rc = ipv6_connect(&server->addr.sockAddr6, | |
193 | &server->ssocket); | |
1da177e4 | 194 | } else { |
fb8c4b14 | 195 | rc = ipv4_connect(&server->addr.sockAddr, |
1da177e4 | 196 | &server->ssocket, |
a10faeb2 SF |
197 | server->workstation_RFC1001_name, |
198 | server->server_RFC1001_name); | |
1da177e4 | 199 | } |
fb8c4b14 SF |
200 | if (rc) { |
201 | cFYI(1, ("reconnect error %d", rc)); | |
0cb766ae | 202 | msleep(3000); |
1da177e4 LT |
203 | } else { |
204 | atomic_inc(&tcpSesReconnectCount); | |
205 | spin_lock(&GlobalMid_Lock); | |
26f57364 | 206 | if (!kthread_should_stop()) |
1da177e4 | 207 | server->tcpStatus = CifsGood; |
ad009ac9 | 208 | server->sequence_number = 0; |
fb8c4b14 | 209 | spin_unlock(&GlobalMid_Lock); |
1da177e4 LT |
210 | /* atomic_set(&server->inFlight,0);*/ |
211 | wake_up(&server->response_q); | |
212 | } | |
213 | } | |
214 | return rc; | |
215 | } | |
216 | ||
fb8c4b14 | 217 | /* |
e4eb295d SF |
218 | return codes: |
219 | 0 not a transact2, or all data present | |
220 | >0 transact2 with that much data missing | |
221 | -EINVAL = invalid transact2 | |
222 | ||
223 | */ | |
fb8c4b14 | 224 | static int check2ndT2(struct smb_hdr *pSMB, unsigned int maxBufSize) |
e4eb295d | 225 | { |
fb8c4b14 SF |
226 | struct smb_t2_rsp *pSMBt; |
227 | int total_data_size; | |
e4eb295d SF |
228 | int data_in_this_rsp; |
229 | int remaining; | |
230 | ||
fb8c4b14 | 231 | if (pSMB->Command != SMB_COM_TRANSACTION2) |
e4eb295d SF |
232 | return 0; |
233 | ||
fb8c4b14 SF |
234 | /* check for plausible wct, bcc and t2 data and parm sizes */ |
235 | /* check for parm and data offset going beyond end of smb */ | |
236 | if (pSMB->WordCount != 10) { /* coalesce_t2 depends on this */ | |
467a8f8d | 237 | cFYI(1, ("invalid transact2 word count")); |
e4eb295d SF |
238 | return -EINVAL; |
239 | } | |
240 | ||
241 | pSMBt = (struct smb_t2_rsp *)pSMB; | |
242 | ||
243 | total_data_size = le16_to_cpu(pSMBt->t2_rsp.TotalDataCount); | |
244 | data_in_this_rsp = le16_to_cpu(pSMBt->t2_rsp.DataCount); | |
245 | ||
246 | remaining = total_data_size - data_in_this_rsp; | |
247 | ||
fb8c4b14 | 248 | if (remaining == 0) |
e4eb295d | 249 | return 0; |
fb8c4b14 | 250 | else if (remaining < 0) { |
467a8f8d | 251 | cFYI(1, ("total data %d smaller than data in frame %d", |
e4eb295d SF |
252 | total_data_size, data_in_this_rsp)); |
253 | return -EINVAL; | |
254 | } else { | |
467a8f8d | 255 | cFYI(1, ("missing %d bytes from transact2, check next response", |
e4eb295d | 256 | remaining)); |
fb8c4b14 SF |
257 | if (total_data_size > maxBufSize) { |
258 | cERROR(1, ("TotalDataSize %d is over maximum buffer %d", | |
259 | total_data_size, maxBufSize)); | |
260 | return -EINVAL; | |
e4eb295d SF |
261 | } |
262 | return remaining; | |
263 | } | |
264 | } | |
265 | ||
fb8c4b14 | 266 | static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB) |
e4eb295d SF |
267 | { |
268 | struct smb_t2_rsp *pSMB2 = (struct smb_t2_rsp *)psecond; | |
269 | struct smb_t2_rsp *pSMBt = (struct smb_t2_rsp *)pTargetSMB; | |
270 | int total_data_size; | |
271 | int total_in_buf; | |
272 | int remaining; | |
273 | int total_in_buf2; | |
fb8c4b14 SF |
274 | char *data_area_of_target; |
275 | char *data_area_of_buf2; | |
e4eb295d SF |
276 | __u16 byte_count; |
277 | ||
278 | total_data_size = le16_to_cpu(pSMBt->t2_rsp.TotalDataCount); | |
279 | ||
fb8c4b14 | 280 | if (total_data_size != le16_to_cpu(pSMB2->t2_rsp.TotalDataCount)) { |
63135e08 | 281 | cFYI(1, ("total data size of primary and secondary t2 differ")); |
e4eb295d SF |
282 | } |
283 | ||
284 | total_in_buf = le16_to_cpu(pSMBt->t2_rsp.DataCount); | |
285 | ||
286 | remaining = total_data_size - total_in_buf; | |
50c2f753 | 287 | |
fb8c4b14 | 288 | if (remaining < 0) |
e4eb295d SF |
289 | return -EINVAL; |
290 | ||
fb8c4b14 | 291 | if (remaining == 0) /* nothing to do, ignore */ |
e4eb295d | 292 | return 0; |
50c2f753 | 293 | |
e4eb295d | 294 | total_in_buf2 = le16_to_cpu(pSMB2->t2_rsp.DataCount); |
fb8c4b14 | 295 | if (remaining < total_in_buf2) { |
467a8f8d | 296 | cFYI(1, ("transact2 2nd response contains too much data")); |
e4eb295d SF |
297 | } |
298 | ||
299 | /* find end of first SMB data area */ | |
fb8c4b14 | 300 | data_area_of_target = (char *)&pSMBt->hdr.Protocol + |
e4eb295d SF |
301 | le16_to_cpu(pSMBt->t2_rsp.DataOffset); |
302 | /* validate target area */ | |
303 | ||
304 | data_area_of_buf2 = (char *) &pSMB2->hdr.Protocol + | |
fb8c4b14 | 305 | le16_to_cpu(pSMB2->t2_rsp.DataOffset); |
e4eb295d SF |
306 | |
307 | data_area_of_target += total_in_buf; | |
308 | ||
309 | /* copy second buffer into end of first buffer */ | |
fb8c4b14 | 310 | memcpy(data_area_of_target, data_area_of_buf2, total_in_buf2); |
e4eb295d SF |
311 | total_in_buf += total_in_buf2; |
312 | pSMBt->t2_rsp.DataCount = cpu_to_le16(total_in_buf); | |
313 | byte_count = le16_to_cpu(BCC_LE(pTargetSMB)); | |
314 | byte_count += total_in_buf2; | |
315 | BCC_LE(pTargetSMB) = cpu_to_le16(byte_count); | |
316 | ||
70ca734a | 317 | byte_count = pTargetSMB->smb_buf_length; |
e4eb295d SF |
318 | byte_count += total_in_buf2; |
319 | ||
320 | /* BB also add check that we are not beyond maximum buffer size */ | |
50c2f753 | 321 | |
70ca734a | 322 | pTargetSMB->smb_buf_length = byte_count; |
e4eb295d | 323 | |
fb8c4b14 | 324 | if (remaining == total_in_buf2) { |
467a8f8d | 325 | cFYI(1, ("found the last secondary response")); |
e4eb295d SF |
326 | return 0; /* we are done */ |
327 | } else /* more responses to go */ | |
328 | return 1; | |
329 | ||
330 | } | |
331 | ||
1da177e4 LT |
332 | static int |
333 | cifs_demultiplex_thread(struct TCP_Server_Info *server) | |
334 | { | |
335 | int length; | |
336 | unsigned int pdu_length, total_read; | |
337 | struct smb_hdr *smb_buffer = NULL; | |
b8643e1b SF |
338 | struct smb_hdr *bigbuf = NULL; |
339 | struct smb_hdr *smallbuf = NULL; | |
1da177e4 LT |
340 | struct msghdr smb_msg; |
341 | struct kvec iov; | |
342 | struct socket *csocket = server->ssocket; | |
343 | struct list_head *tmp; | |
344 | struct cifsSesInfo *ses; | |
345 | struct task_struct *task_to_wake = NULL; | |
346 | struct mid_q_entry *mid_entry; | |
70ca734a | 347 | char temp; |
b8643e1b | 348 | int isLargeBuf = FALSE; |
e4eb295d SF |
349 | int isMultiRsp; |
350 | int reconnect; | |
1da177e4 | 351 | |
1da177e4 LT |
352 | current->flags |= PF_MEMALLOC; |
353 | server->tsk = current; /* save process info to wake at shutdown */ | |
354 | cFYI(1, ("Demultiplex PID: %d", current->pid)); | |
fb8c4b14 | 355 | write_lock(&GlobalSMBSeslock); |
1da177e4 LT |
356 | atomic_inc(&tcpSesAllocCount); |
357 | length = tcpSesAllocCount.counter; | |
358 | write_unlock(&GlobalSMBSeslock); | |
f191401f | 359 | complete(&cifsd_complete); |
26f57364 SF |
360 | if (length > 1) |
361 | mempool_resize(cifs_req_poolp, length + cifs_min_rcv, | |
362 | GFP_KERNEL); | |
1da177e4 | 363 | |
83144186 | 364 | set_freezable(); |
aaf737ad | 365 | while (!kthread_should_stop()) { |
ede1327e SF |
366 | if (try_to_freeze()) |
367 | continue; | |
b8643e1b SF |
368 | if (bigbuf == NULL) { |
369 | bigbuf = cifs_buf_get(); | |
0fd1ffe0 PM |
370 | if (!bigbuf) { |
371 | cERROR(1, ("No memory for large SMB response")); | |
b8643e1b SF |
372 | msleep(3000); |
373 | /* retry will check if exiting */ | |
374 | continue; | |
375 | } | |
0fd1ffe0 PM |
376 | } else if (isLargeBuf) { |
377 | /* we are reusing a dirty large buf, clear its start */ | |
26f57364 | 378 | memset(bigbuf, 0, sizeof(struct smb_hdr)); |
1da177e4 | 379 | } |
b8643e1b SF |
380 | |
381 | if (smallbuf == NULL) { | |
382 | smallbuf = cifs_small_buf_get(); | |
0fd1ffe0 PM |
383 | if (!smallbuf) { |
384 | cERROR(1, ("No memory for SMB response")); | |
b8643e1b SF |
385 | msleep(1000); |
386 | /* retry will check if exiting */ | |
387 | continue; | |
388 | } | |
389 | /* beginning of smb buffer is cleared in our buf_get */ | |
390 | } else /* if existing small buf clear beginning */ | |
26f57364 | 391 | memset(smallbuf, 0, sizeof(struct smb_hdr)); |
b8643e1b SF |
392 | |
393 | isLargeBuf = FALSE; | |
e4eb295d | 394 | isMultiRsp = FALSE; |
b8643e1b | 395 | smb_buffer = smallbuf; |
1da177e4 LT |
396 | iov.iov_base = smb_buffer; |
397 | iov.iov_len = 4; | |
398 | smb_msg.msg_control = NULL; | |
399 | smb_msg.msg_controllen = 0; | |
f01d5e14 SF |
400 | pdu_length = 4; /* enough to get RFC1001 header */ |
401 | incomplete_rcv: | |
1da177e4 LT |
402 | length = |
403 | kernel_recvmsg(csocket, &smb_msg, | |
f01d5e14 | 404 | &iov, 1, pdu_length, 0 /* BB other flags? */); |
1da177e4 | 405 | |
26f57364 | 406 | if (kthread_should_stop()) { |
1da177e4 LT |
407 | break; |
408 | } else if (server->tcpStatus == CifsNeedReconnect) { | |
0fd1ffe0 | 409 | cFYI(1, ("Reconnect after server stopped responding")); |
1da177e4 | 410 | cifs_reconnect(server); |
0fd1ffe0 | 411 | cFYI(1, ("call to reconnect done")); |
1da177e4 LT |
412 | csocket = server->ssocket; |
413 | continue; | |
414 | } else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) { | |
b8643e1b | 415 | msleep(1); /* minimum sleep to prevent looping |
1da177e4 LT |
416 | allowing socket to clear and app threads to set |
417 | tcpStatus CifsNeedReconnect if server hung */ | |
418 | continue; | |
419 | } else if (length <= 0) { | |
0fd1ffe0 PM |
420 | if (server->tcpStatus == CifsNew) { |
421 | cFYI(1, ("tcp session abend after SMBnegprot")); | |
09d1db5c SF |
422 | /* some servers kill the TCP session rather than |
423 | returning an SMB negprot error, in which | |
424 | case reconnecting here is not going to help, | |
425 | and so simply return error to mount */ | |
1da177e4 LT |
426 | break; |
427 | } | |
0fd1ffe0 | 428 | if (!try_to_freeze() && (length == -EINTR)) { |
467a8f8d | 429 | cFYI(1, ("cifsd thread killed")); |
1da177e4 LT |
430 | break; |
431 | } | |
467a8f8d | 432 | cFYI(1, ("Reconnect after unexpected peek error %d", |
57337e42 | 433 | length)); |
1da177e4 LT |
434 | cifs_reconnect(server); |
435 | csocket = server->ssocket; | |
436 | wake_up(&server->response_q); | |
437 | continue; | |
46810cbf | 438 | } else if (length < 4) { |
f01d5e14 | 439 | cFYI(1, ("less than four bytes received (%d bytes)", |
46810cbf | 440 | length)); |
f01d5e14 | 441 | pdu_length -= length; |
f01d5e14 SF |
442 | msleep(1); |
443 | goto incomplete_rcv; | |
46810cbf | 444 | } |
1da177e4 | 445 | |
70ca734a SF |
446 | /* The right amount was read from socket - 4 bytes */ |
447 | /* so we can now interpret the length field */ | |
46810cbf | 448 | |
70ca734a SF |
449 | /* the first byte big endian of the length field, |
450 | is actually not part of the length but the type | |
451 | with the most common, zero, as regular data */ | |
452 | temp = *((char *) smb_buffer); | |
46810cbf | 453 | |
fb8c4b14 | 454 | /* Note that FC 1001 length is big endian on the wire, |
70ca734a SF |
455 | but we convert it here so it is always manipulated |
456 | as host byte order */ | |
46810cbf | 457 | pdu_length = ntohl(smb_buffer->smb_buf_length); |
70ca734a SF |
458 | smb_buffer->smb_buf_length = pdu_length; |
459 | ||
467a8f8d | 460 | cFYI(1, ("rfc1002 length 0x%x", pdu_length+4)); |
46810cbf | 461 | |
70ca734a | 462 | if (temp == (char) RFC1002_SESSION_KEEP_ALIVE) { |
fb8c4b14 | 463 | continue; |
70ca734a | 464 | } else if (temp == (char)RFC1002_POSITIVE_SESSION_RESPONSE) { |
467a8f8d | 465 | cFYI(1, ("Good RFC 1002 session rsp")); |
e4eb295d | 466 | continue; |
70ca734a | 467 | } else if (temp == (char)RFC1002_NEGATIVE_SESSION_RESPONSE) { |
fb8c4b14 | 468 | /* we get this from Windows 98 instead of |
46810cbf | 469 | an error on SMB negprot response */ |
fb8c4b14 | 470 | cFYI(1, ("Negative RFC1002 Session Response Error 0x%x)", |
70ca734a | 471 | pdu_length)); |
fb8c4b14 SF |
472 | if (server->tcpStatus == CifsNew) { |
473 | /* if nack on negprot (rather than | |
46810cbf SF |
474 | ret of smb negprot error) reconnecting |
475 | not going to help, ret error to mount */ | |
476 | break; | |
477 | } else { | |
478 | /* give server a second to | |
479 | clean up before reconnect attempt */ | |
480 | msleep(1000); | |
481 | /* always try 445 first on reconnect | |
482 | since we get NACK on some if we ever | |
fb8c4b14 | 483 | connected to port 139 (the NACK is |
46810cbf SF |
484 | since we do not begin with RFC1001 |
485 | session initialize frame) */ | |
fb8c4b14 | 486 | server->addr.sockAddr.sin_port = |
46810cbf | 487 | htons(CIFS_PORT); |
1da177e4 LT |
488 | cifs_reconnect(server); |
489 | csocket = server->ssocket; | |
46810cbf | 490 | wake_up(&server->response_q); |
1da177e4 | 491 | continue; |
46810cbf | 492 | } |
70ca734a | 493 | } else if (temp != (char) 0) { |
fb8c4b14 | 494 | cERROR(1, ("Unknown RFC 1002 frame")); |
70ca734a SF |
495 | cifs_dump_mem(" Received Data: ", (char *)smb_buffer, |
496 | length); | |
46810cbf SF |
497 | cifs_reconnect(server); |
498 | csocket = server->ssocket; | |
499 | continue; | |
e4eb295d SF |
500 | } |
501 | ||
502 | /* else we have an SMB response */ | |
fb8c4b14 | 503 | if ((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) || |
26f57364 | 504 | (pdu_length < sizeof(struct smb_hdr) - 1 - 4)) { |
e4eb295d | 505 | cERROR(1, ("Invalid size SMB length %d pdu_length %d", |
46810cbf | 506 | length, pdu_length+4)); |
e4eb295d SF |
507 | cifs_reconnect(server); |
508 | csocket = server->ssocket; | |
509 | wake_up(&server->response_q); | |
510 | continue; | |
fb8c4b14 | 511 | } |
e4eb295d SF |
512 | |
513 | /* else length ok */ | |
514 | reconnect = 0; | |
515 | ||
fb8c4b14 | 516 | if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) { |
e4eb295d SF |
517 | isLargeBuf = TRUE; |
518 | memcpy(bigbuf, smallbuf, 4); | |
519 | smb_buffer = bigbuf; | |
520 | } | |
521 | length = 0; | |
522 | iov.iov_base = 4 + (char *)smb_buffer; | |
523 | iov.iov_len = pdu_length; | |
fb8c4b14 | 524 | for (total_read = 0; total_read < pdu_length; |
e4eb295d SF |
525 | total_read += length) { |
526 | length = kernel_recvmsg(csocket, &smb_msg, &iov, 1, | |
527 | pdu_length - total_read, 0); | |
26f57364 | 528 | if (kthread_should_stop() || |
e4eb295d SF |
529 | (length == -EINTR)) { |
530 | /* then will exit */ | |
531 | reconnect = 2; | |
532 | break; | |
533 | } else if (server->tcpStatus == CifsNeedReconnect) { | |
46810cbf SF |
534 | cifs_reconnect(server); |
535 | csocket = server->ssocket; | |
fb8c4b14 | 536 | /* Reconnect wakes up rspns q */ |
e4eb295d SF |
537 | /* Now we will reread sock */ |
538 | reconnect = 1; | |
539 | break; | |
fb8c4b14 | 540 | } else if ((length == -ERESTARTSYS) || |
e4eb295d SF |
541 | (length == -EAGAIN)) { |
542 | msleep(1); /* minimum sleep to prevent looping, | |
fb8c4b14 | 543 | allowing socket to clear and app |
e4eb295d SF |
544 | threads to set tcpStatus |
545 | CifsNeedReconnect if server hung*/ | |
46810cbf | 546 | continue; |
e4eb295d | 547 | } else if (length <= 0) { |
fb8c4b14 | 548 | cERROR(1, ("Received no data, expecting %d", |
e4eb295d SF |
549 | pdu_length - total_read)); |
550 | cifs_reconnect(server); | |
551 | csocket = server->ssocket; | |
552 | reconnect = 1; | |
553 | break; | |
46810cbf | 554 | } |
e4eb295d | 555 | } |
fb8c4b14 | 556 | if (reconnect == 2) |
e4eb295d | 557 | break; |
fb8c4b14 | 558 | else if (reconnect == 1) |
e4eb295d | 559 | continue; |
1da177e4 | 560 | |
e4eb295d | 561 | length += 4; /* account for rfc1002 hdr */ |
50c2f753 | 562 | |
09d1db5c | 563 | |
e4eb295d | 564 | dump_smb(smb_buffer, length); |
184ed211 | 565 | if (checkSMB(smb_buffer, smb_buffer->Mid, total_read+4)) { |
b387eaeb | 566 | cifs_dump_mem("Bad SMB: ", smb_buffer, 48); |
e4eb295d SF |
567 | continue; |
568 | } | |
1da177e4 | 569 | |
e4eb295d SF |
570 | |
571 | task_to_wake = NULL; | |
572 | spin_lock(&GlobalMid_Lock); | |
573 | list_for_each(tmp, &server->pending_mid_q) { | |
574 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); | |
575 | ||
50c2f753 | 576 | if ((mid_entry->mid == smb_buffer->Mid) && |
e4eb295d SF |
577 | (mid_entry->midState == MID_REQUEST_SUBMITTED) && |
578 | (mid_entry->command == smb_buffer->Command)) { | |
fb8c4b14 | 579 | if (check2ndT2(smb_buffer,server->maxBuf) > 0) { |
e4eb295d | 580 | /* We have a multipart transact2 resp */ |
cd63499c | 581 | isMultiRsp = TRUE; |
fb8c4b14 | 582 | if (mid_entry->resp_buf) { |
e4eb295d | 583 | /* merge response - fix up 1st*/ |
50c2f753 | 584 | if (coalesce_t2(smb_buffer, |
e4eb295d | 585 | mid_entry->resp_buf)) { |
3979877e | 586 | mid_entry->multiRsp = 1; |
e4eb295d SF |
587 | break; |
588 | } else { | |
589 | /* all parts received */ | |
3979877e | 590 | mid_entry->multiEnd = 1; |
50c2f753 | 591 | goto multi_t2_fnd; |
e4eb295d SF |
592 | } |
593 | } else { | |
fb8c4b14 | 594 | if (!isLargeBuf) { |
e4eb295d SF |
595 | cERROR(1,("1st trans2 resp needs bigbuf")); |
596 | /* BB maybe we can fix this up, switch | |
50c2f753 | 597 | to already allocated large buffer? */ |
e4eb295d | 598 | } else { |
cd63499c | 599 | /* Have first buffer */ |
e4eb295d SF |
600 | mid_entry->resp_buf = |
601 | smb_buffer; | |
602 | mid_entry->largeBuf = 1; | |
e4eb295d SF |
603 | bigbuf = NULL; |
604 | } | |
605 | } | |
606 | break; | |
50c2f753 | 607 | } |
e4eb295d | 608 | mid_entry->resp_buf = smb_buffer; |
fb8c4b14 | 609 | if (isLargeBuf) |
e4eb295d | 610 | mid_entry->largeBuf = 1; |
46810cbf | 611 | else |
e4eb295d SF |
612 | mid_entry->largeBuf = 0; |
613 | multi_t2_fnd: | |
614 | task_to_wake = mid_entry->tsk; | |
615 | mid_entry->midState = MID_RESPONSE_RECEIVED; | |
1047abc1 SF |
616 | #ifdef CONFIG_CIFS_STATS2 |
617 | mid_entry->when_received = jiffies; | |
618 | #endif | |
3a5ff61c SF |
619 | /* so we do not time out requests to server |
620 | which is still responding (since server could | |
621 | be busy but not dead) */ | |
622 | server->lstrp = jiffies; | |
e4eb295d | 623 | break; |
46810cbf | 624 | } |
1da177e4 | 625 | } |
e4eb295d SF |
626 | spin_unlock(&GlobalMid_Lock); |
627 | if (task_to_wake) { | |
cd63499c | 628 | /* Was previous buf put in mpx struct for multi-rsp? */ |
fb8c4b14 | 629 | if (!isMultiRsp) { |
cd63499c | 630 | /* smb buffer will be freed by user thread */ |
26f57364 | 631 | if (isLargeBuf) |
cd63499c | 632 | bigbuf = NULL; |
26f57364 | 633 | else |
cd63499c SF |
634 | smallbuf = NULL; |
635 | } | |
e4eb295d | 636 | wake_up_process(task_to_wake); |
d7c8c94d | 637 | } else if ((is_valid_oplock_break(smb_buffer, server) == FALSE) |
50c2f753 SF |
638 | && (isMultiRsp == FALSE)) { |
639 | cERROR(1, ("No task to wake, unknown frame received! " | |
640 | "NumMids %d", midCount.counter)); | |
641 | cifs_dump_mem("Received Data is: ", (char *)smb_buffer, | |
70ca734a | 642 | sizeof(struct smb_hdr)); |
3979877e SF |
643 | #ifdef CONFIG_CIFS_DEBUG2 |
644 | cifs_dump_detail(smb_buffer); | |
645 | cifs_dump_mids(server); | |
646 | #endif /* CIFS_DEBUG2 */ | |
50c2f753 | 647 | |
e4eb295d SF |
648 | } |
649 | } /* end while !EXITING */ | |
650 | ||
1da177e4 LT |
651 | spin_lock(&GlobalMid_Lock); |
652 | server->tcpStatus = CifsExiting; | |
653 | server->tsk = NULL; | |
31ca3bc3 SF |
654 | /* check if we have blocked requests that need to free */ |
655 | /* Note that cifs_max_pending is normally 50, but | |
656 | can be set at module install time to as little as two */ | |
fb8c4b14 | 657 | if (atomic_read(&server->inFlight) >= cifs_max_pending) |
31ca3bc3 SF |
658 | atomic_set(&server->inFlight, cifs_max_pending - 1); |
659 | /* We do not want to set the max_pending too low or we | |
660 | could end up with the counter going negative */ | |
1da177e4 | 661 | spin_unlock(&GlobalMid_Lock); |
50c2f753 | 662 | /* Although there should not be any requests blocked on |
1da177e4 | 663 | this queue it can not hurt to be paranoid and try to wake up requests |
09d1db5c | 664 | that may haven been blocked when more than 50 at time were on the wire |
1da177e4 LT |
665 | to the same server - they now will see the session is in exit state |
666 | and get out of SendReceive. */ | |
667 | wake_up_all(&server->request_q); | |
668 | /* give those requests time to exit */ | |
b8643e1b | 669 | msleep(125); |
50c2f753 | 670 | |
fb8c4b14 | 671 | if (server->ssocket) { |
1da177e4 LT |
672 | sock_release(csocket); |
673 | server->ssocket = NULL; | |
674 | } | |
b8643e1b SF |
675 | /* buffer usuallly freed in free_mid - need to free it here on exit */ |
676 | if (bigbuf != NULL) | |
677 | cifs_buf_release(bigbuf); | |
678 | if (smallbuf != NULL) | |
679 | cifs_small_buf_release(smallbuf); | |
1da177e4 LT |
680 | |
681 | read_lock(&GlobalSMBSeslock); | |
682 | if (list_empty(&server->pending_mid_q)) { | |
09d1db5c SF |
683 | /* loop through server session structures attached to this and |
684 | mark them dead */ | |
1da177e4 LT |
685 | list_for_each(tmp, &GlobalSMBSessionList) { |
686 | ses = | |
687 | list_entry(tmp, struct cifsSesInfo, | |
688 | cifsSessionList); | |
689 | if (ses->server == server) { | |
690 | ses->status = CifsExiting; | |
691 | ses->server = NULL; | |
692 | } | |
693 | } | |
694 | read_unlock(&GlobalSMBSeslock); | |
695 | } else { | |
31ca3bc3 SF |
696 | /* although we can not zero the server struct pointer yet, |
697 | since there are active requests which may depnd on them, | |
698 | mark the corresponding SMB sessions as exiting too */ | |
699 | list_for_each(tmp, &GlobalSMBSessionList) { | |
700 | ses = list_entry(tmp, struct cifsSesInfo, | |
701 | cifsSessionList); | |
26f57364 | 702 | if (ses->server == server) |
31ca3bc3 | 703 | ses->status = CifsExiting; |
31ca3bc3 SF |
704 | } |
705 | ||
1da177e4 LT |
706 | spin_lock(&GlobalMid_Lock); |
707 | list_for_each(tmp, &server->pending_mid_q) { | |
708 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); | |
709 | if (mid_entry->midState == MID_REQUEST_SUBMITTED) { | |
50c2f753 SF |
710 | cFYI(1, ("Clearing Mid 0x%x - waking up ", |
711 | mid_entry->mid)); | |
1da177e4 | 712 | task_to_wake = mid_entry->tsk; |
26f57364 | 713 | if (task_to_wake) |
1da177e4 | 714 | wake_up_process(task_to_wake); |
1da177e4 LT |
715 | } |
716 | } | |
717 | spin_unlock(&GlobalMid_Lock); | |
718 | read_unlock(&GlobalSMBSeslock); | |
1da177e4 | 719 | /* 1/8th of sec is more than enough time for them to exit */ |
b8643e1b | 720 | msleep(125); |
1da177e4 LT |
721 | } |
722 | ||
f191401f | 723 | if (!list_empty(&server->pending_mid_q)) { |
50c2f753 | 724 | /* mpx threads have not exited yet give them |
1da177e4 | 725 | at least the smb send timeout time for long ops */ |
31ca3bc3 SF |
726 | /* due to delays on oplock break requests, we need |
727 | to wait at least 45 seconds before giving up | |
728 | on a request getting a response and going ahead | |
729 | and killing cifsd */ | |
1da177e4 | 730 | cFYI(1, ("Wait for exit from demultiplex thread")); |
31ca3bc3 | 731 | msleep(46000); |
1da177e4 LT |
732 | /* if threads still have not exited they are probably never |
733 | coming home not much else we can do but free the memory */ | |
734 | } | |
1da177e4 LT |
735 | |
736 | write_lock(&GlobalSMBSeslock); | |
737 | atomic_dec(&tcpSesAllocCount); | |
738 | length = tcpSesAllocCount.counter; | |
31ca3bc3 SF |
739 | |
740 | /* last chance to mark ses pointers invalid | |
741 | if there are any pointing to this (e.g | |
50c2f753 | 742 | if a crazy root user tried to kill cifsd |
31ca3bc3 SF |
743 | kernel thread explicitly this might happen) */ |
744 | list_for_each(tmp, &GlobalSMBSessionList) { | |
745 | ses = list_entry(tmp, struct cifsSesInfo, | |
746 | cifsSessionList); | |
26f57364 | 747 | if (ses->server == server) |
31ca3bc3 | 748 | ses->server = NULL; |
31ca3bc3 | 749 | } |
1da177e4 | 750 | write_unlock(&GlobalSMBSeslock); |
31ca3bc3 SF |
751 | |
752 | kfree(server); | |
26f57364 SF |
753 | if (length > 0) |
754 | mempool_resize(cifs_req_poolp, length + cifs_min_rcv, | |
755 | GFP_KERNEL); | |
50c2f753 | 756 | |
1da177e4 LT |
757 | return 0; |
758 | } | |
759 | ||
1da177e4 | 760 | static int |
50c2f753 SF |
761 | cifs_parse_mount_options(char *options, const char *devname, |
762 | struct smb_vol *vol) | |
1da177e4 LT |
763 | { |
764 | char *value; | |
765 | char *data; | |
766 | unsigned int temp_len, i, j; | |
767 | char separator[2]; | |
768 | ||
769 | separator[0] = ','; | |
50c2f753 | 770 | separator[1] = 0; |
1da177e4 | 771 | |
12e36b2f | 772 | if (Local_System_Name[0] != 0) |
50c2f753 | 773 | memcpy(vol->source_rfc1001_name, Local_System_Name, 15); |
2cd646a2 | 774 | else { |
12e36b2f | 775 | char *nodename = utsname()->nodename; |
50c2f753 SF |
776 | int n = strnlen(nodename, 15); |
777 | memset(vol->source_rfc1001_name, 0x20, 15); | |
778 | for (i = 0; i < n; i++) { | |
2cd646a2 SF |
779 | /* does not have to be perfect mapping since field is |
780 | informational, only used for servers that do not support | |
781 | port 445 and it can be overridden at mount time */ | |
12e36b2f | 782 | vol->source_rfc1001_name[i] = toupper(nodename[i]); |
2cd646a2 | 783 | } |
1da177e4 LT |
784 | } |
785 | vol->source_rfc1001_name[15] = 0; | |
a10faeb2 SF |
786 | /* null target name indicates to use *SMBSERVR default called name |
787 | if we end up sending RFC1001 session initialize */ | |
788 | vol->target_rfc1001_name[0] = 0; | |
1da177e4 LT |
789 | vol->linux_uid = current->uid; /* current->euid instead? */ |
790 | vol->linux_gid = current->gid; | |
791 | vol->dir_mode = S_IRWXUGO; | |
792 | /* 2767 perms indicate mandatory locking support */ | |
793 | vol->file_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP); | |
794 | ||
795 | /* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */ | |
796 | vol->rw = TRUE; | |
ac67055e JA |
797 | /* default is always to request posix paths. */ |
798 | vol->posix_paths = 1; | |
799 | ||
1da177e4 LT |
800 | if (!options) |
801 | return 1; | |
802 | ||
50c2f753 | 803 | if (strncmp(options, "sep=", 4) == 0) { |
fb8c4b14 | 804 | if (options[4] != 0) { |
1da177e4 LT |
805 | separator[0] = options[4]; |
806 | options += 5; | |
807 | } else { | |
467a8f8d | 808 | cFYI(1, ("Null separator not allowed")); |
1da177e4 LT |
809 | } |
810 | } | |
50c2f753 | 811 | |
1da177e4 LT |
812 | while ((data = strsep(&options, separator)) != NULL) { |
813 | if (!*data) | |
814 | continue; | |
815 | if ((value = strchr(data, '=')) != NULL) | |
816 | *value++ = '\0'; | |
817 | ||
50c2f753 SF |
818 | /* Have to parse this before we parse for "user" */ |
819 | if (strnicmp(data, "user_xattr", 10) == 0) { | |
1da177e4 | 820 | vol->no_xattr = 0; |
50c2f753 | 821 | } else if (strnicmp(data, "nouser_xattr", 12) == 0) { |
1da177e4 LT |
822 | vol->no_xattr = 1; |
823 | } else if (strnicmp(data, "user", 4) == 0) { | |
4b952a9b | 824 | if (!value) { |
1da177e4 LT |
825 | printk(KERN_WARNING |
826 | "CIFS: invalid or missing username\n"); | |
827 | return 1; /* needs_arg; */ | |
fb8c4b14 | 828 | } else if (!*value) { |
4b952a9b SF |
829 | /* null user, ie anonymous, authentication */ |
830 | vol->nullauth = 1; | |
1da177e4 LT |
831 | } |
832 | if (strnlen(value, 200) < 200) { | |
833 | vol->username = value; | |
834 | } else { | |
835 | printk(KERN_WARNING "CIFS: username too long\n"); | |
836 | return 1; | |
837 | } | |
838 | } else if (strnicmp(data, "pass", 4) == 0) { | |
839 | if (!value) { | |
840 | vol->password = NULL; | |
841 | continue; | |
fb8c4b14 | 842 | } else if (value[0] == 0) { |
1da177e4 LT |
843 | /* check if string begins with double comma |
844 | since that would mean the password really | |
845 | does start with a comma, and would not | |
846 | indicate an empty string */ | |
fb8c4b14 | 847 | if (value[1] != separator[0]) { |
1da177e4 LT |
848 | vol->password = NULL; |
849 | continue; | |
850 | } | |
851 | } | |
852 | temp_len = strlen(value); | |
853 | /* removed password length check, NTLM passwords | |
854 | can be arbitrarily long */ | |
855 | ||
50c2f753 | 856 | /* if comma in password, the string will be |
1da177e4 LT |
857 | prematurely null terminated. Commas in password are |
858 | specified across the cifs mount interface by a double | |
859 | comma ie ,, and a comma used as in other cases ie ',' | |
860 | as a parameter delimiter/separator is single and due | |
861 | to the strsep above is temporarily zeroed. */ | |
862 | ||
863 | /* NB: password legally can have multiple commas and | |
864 | the only illegal character in a password is null */ | |
865 | ||
50c2f753 | 866 | if ((value[temp_len] == 0) && |
09d1db5c | 867 | (value[temp_len+1] == separator[0])) { |
1da177e4 LT |
868 | /* reinsert comma */ |
869 | value[temp_len] = separator[0]; | |
50c2f753 SF |
870 | temp_len += 2; /* move after second comma */ |
871 | while (value[temp_len] != 0) { | |
1da177e4 | 872 | if (value[temp_len] == separator[0]) { |
50c2f753 | 873 | if (value[temp_len+1] == |
09d1db5c SF |
874 | separator[0]) { |
875 | /* skip second comma */ | |
876 | temp_len++; | |
50c2f753 | 877 | } else { |
1da177e4 LT |
878 | /* single comma indicating start |
879 | of next parm */ | |
880 | break; | |
881 | } | |
882 | } | |
883 | temp_len++; | |
884 | } | |
fb8c4b14 | 885 | if (value[temp_len] == 0) { |
1da177e4 LT |
886 | options = NULL; |
887 | } else { | |
888 | value[temp_len] = 0; | |
889 | /* point option to start of next parm */ | |
890 | options = value + temp_len + 1; | |
891 | } | |
50c2f753 | 892 | /* go from value to value + temp_len condensing |
1da177e4 LT |
893 | double commas to singles. Note that this ends up |
894 | allocating a few bytes too many, which is ok */ | |
e915fc49 | 895 | vol->password = kzalloc(temp_len, GFP_KERNEL); |
fb8c4b14 | 896 | if (vol->password == NULL) { |
50c2f753 SF |
897 | printk(KERN_WARNING "CIFS: no memory " |
898 | "for password\n"); | |
433dc24f SF |
899 | return 1; |
900 | } | |
50c2f753 | 901 | for (i = 0, j = 0; i < temp_len; i++, j++) { |
1da177e4 | 902 | vol->password[j] = value[i]; |
fb8c4b14 | 903 | if (value[i] == separator[0] |
09d1db5c | 904 | && value[i+1] == separator[0]) { |
1da177e4 LT |
905 | /* skip second comma */ |
906 | i++; | |
907 | } | |
908 | } | |
909 | vol->password[j] = 0; | |
910 | } else { | |
e915fc49 | 911 | vol->password = kzalloc(temp_len+1, GFP_KERNEL); |
fb8c4b14 | 912 | if (vol->password == NULL) { |
50c2f753 SF |
913 | printk(KERN_WARNING "CIFS: no memory " |
914 | "for password\n"); | |
433dc24f SF |
915 | return 1; |
916 | } | |
1da177e4 LT |
917 | strcpy(vol->password, value); |
918 | } | |
919 | } else if (strnicmp(data, "ip", 2) == 0) { | |
920 | if (!value || !*value) { | |
921 | vol->UNCip = NULL; | |
922 | } else if (strnlen(value, 35) < 35) { | |
923 | vol->UNCip = value; | |
924 | } else { | |
50c2f753 SF |
925 | printk(KERN_WARNING "CIFS: ip address " |
926 | "too long\n"); | |
1da177e4 LT |
927 | return 1; |
928 | } | |
50c2f753 SF |
929 | } else if (strnicmp(data, "sec", 3) == 0) { |
930 | if (!value || !*value) { | |
931 | cERROR(1, ("no security value specified")); | |
932 | continue; | |
933 | } else if (strnicmp(value, "krb5i", 5) == 0) { | |
934 | vol->secFlg |= CIFSSEC_MAY_KRB5 | | |
189acaae | 935 | CIFSSEC_MUST_SIGN; |
bf820679 | 936 | } else if (strnicmp(value, "krb5p", 5) == 0) { |
50c2f753 SF |
937 | /* vol->secFlg |= CIFSSEC_MUST_SEAL | |
938 | CIFSSEC_MAY_KRB5; */ | |
939 | cERROR(1, ("Krb5 cifs privacy not supported")); | |
bf820679 SF |
940 | return 1; |
941 | } else if (strnicmp(value, "krb5", 4) == 0) { | |
750d1151 | 942 | vol->secFlg |= CIFSSEC_MAY_KRB5; |
bf820679 | 943 | } else if (strnicmp(value, "ntlmv2i", 7) == 0) { |
750d1151 | 944 | vol->secFlg |= CIFSSEC_MAY_NTLMV2 | |
189acaae | 945 | CIFSSEC_MUST_SIGN; |
bf820679 | 946 | } else if (strnicmp(value, "ntlmv2", 6) == 0) { |
750d1151 | 947 | vol->secFlg |= CIFSSEC_MAY_NTLMV2; |
bf820679 | 948 | } else if (strnicmp(value, "ntlmi", 5) == 0) { |
750d1151 | 949 | vol->secFlg |= CIFSSEC_MAY_NTLM | |
189acaae | 950 | CIFSSEC_MUST_SIGN; |
bf820679 SF |
951 | } else if (strnicmp(value, "ntlm", 4) == 0) { |
952 | /* ntlm is default so can be turned off too */ | |
750d1151 | 953 | vol->secFlg |= CIFSSEC_MAY_NTLM; |
bf820679 | 954 | } else if (strnicmp(value, "nontlm", 6) == 0) { |
189acaae | 955 | /* BB is there a better way to do this? */ |
750d1151 | 956 | vol->secFlg |= CIFSSEC_MAY_NTLMV2; |
189acaae SF |
957 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
958 | } else if (strnicmp(value, "lanman", 6) == 0) { | |
50c2f753 | 959 | vol->secFlg |= CIFSSEC_MAY_LANMAN; |
189acaae | 960 | #endif |
bf820679 | 961 | } else if (strnicmp(value, "none", 4) == 0) { |
189acaae | 962 | vol->nullauth = 1; |
50c2f753 SF |
963 | } else { |
964 | cERROR(1, ("bad security option: %s", value)); | |
965 | return 1; | |
966 | } | |
1da177e4 LT |
967 | } else if ((strnicmp(data, "unc", 3) == 0) |
968 | || (strnicmp(data, "target", 6) == 0) | |
969 | || (strnicmp(data, "path", 4) == 0)) { | |
970 | if (!value || !*value) { | |
50c2f753 SF |
971 | printk(KERN_WARNING "CIFS: invalid path to " |
972 | "network resource\n"); | |
1da177e4 LT |
973 | return 1; /* needs_arg; */ |
974 | } | |
975 | if ((temp_len = strnlen(value, 300)) < 300) { | |
50c2f753 | 976 | vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); |
4523cc30 | 977 | if (vol->UNC == NULL) |
1da177e4 | 978 | return 1; |
50c2f753 | 979 | strcpy(vol->UNC, value); |
1da177e4 LT |
980 | if (strncmp(vol->UNC, "//", 2) == 0) { |
981 | vol->UNC[0] = '\\'; | |
982 | vol->UNC[1] = '\\'; | |
50c2f753 | 983 | } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { |
1da177e4 | 984 | printk(KERN_WARNING |
50c2f753 SF |
985 | "CIFS: UNC Path does not begin " |
986 | "with // or \\\\ \n"); | |
1da177e4 LT |
987 | return 1; |
988 | } | |
989 | } else { | |
990 | printk(KERN_WARNING "CIFS: UNC name too long\n"); | |
991 | return 1; | |
992 | } | |
993 | } else if ((strnicmp(data, "domain", 3) == 0) | |
994 | || (strnicmp(data, "workgroup", 5) == 0)) { | |
995 | if (!value || !*value) { | |
996 | printk(KERN_WARNING "CIFS: invalid domain name\n"); | |
997 | return 1; /* needs_arg; */ | |
998 | } | |
999 | /* BB are there cases in which a comma can be valid in | |
1000 | a domain name and need special handling? */ | |
3979877e | 1001 | if (strnlen(value, 256) < 256) { |
1da177e4 LT |
1002 | vol->domainname = value; |
1003 | cFYI(1, ("Domain name set")); | |
1004 | } else { | |
50c2f753 SF |
1005 | printk(KERN_WARNING "CIFS: domain name too " |
1006 | "long\n"); | |
1da177e4 LT |
1007 | return 1; |
1008 | } | |
50c2f753 SF |
1009 | } else if (strnicmp(data, "prefixpath", 10) == 0) { |
1010 | if (!value || !*value) { | |
1011 | printk(KERN_WARNING | |
1012 | "CIFS: invalid path prefix\n"); | |
1013 | return 1; /* needs_argument */ | |
1014 | } | |
1015 | if ((temp_len = strnlen(value, 1024)) < 1024) { | |
4523cc30 | 1016 | if (value[0] != '/') |
2fe87f02 | 1017 | temp_len++; /* missing leading slash */ |
50c2f753 SF |
1018 | vol->prepath = kmalloc(temp_len+1, GFP_KERNEL); |
1019 | if (vol->prepath == NULL) | |
1020 | return 1; | |
4523cc30 | 1021 | if (value[0] != '/') { |
2fe87f02 | 1022 | vol->prepath[0] = '/'; |
50c2f753 | 1023 | strcpy(vol->prepath+1, value); |
2fe87f02 | 1024 | } else |
50c2f753 SF |
1025 | strcpy(vol->prepath, value); |
1026 | cFYI(1, ("prefix path %s", vol->prepath)); | |
1027 | } else { | |
1028 | printk(KERN_WARNING "CIFS: prefix too long\n"); | |
1029 | return 1; | |
1030 | } | |
1da177e4 LT |
1031 | } else if (strnicmp(data, "iocharset", 9) == 0) { |
1032 | if (!value || !*value) { | |
63135e08 SF |
1033 | printk(KERN_WARNING "CIFS: invalid iocharset " |
1034 | "specified\n"); | |
1da177e4 LT |
1035 | return 1; /* needs_arg; */ |
1036 | } | |
1037 | if (strnlen(value, 65) < 65) { | |
50c2f753 | 1038 | if (strnicmp(value, "default", 7)) |
1da177e4 | 1039 | vol->iocharset = value; |
50c2f753 SF |
1040 | /* if iocharset not set then load_nls_default |
1041 | is used by caller */ | |
1042 | cFYI(1, ("iocharset set to %s", value)); | |
1da177e4 | 1043 | } else { |
63135e08 SF |
1044 | printk(KERN_WARNING "CIFS: iocharset name " |
1045 | "too long.\n"); | |
1da177e4 LT |
1046 | return 1; |
1047 | } | |
1048 | } else if (strnicmp(data, "uid", 3) == 0) { | |
1049 | if (value && *value) { | |
1050 | vol->linux_uid = | |
1051 | simple_strtoul(value, &value, 0); | |
4523cc30 | 1052 | vol->override_uid = 1; |
1da177e4 LT |
1053 | } |
1054 | } else if (strnicmp(data, "gid", 3) == 0) { | |
1055 | if (value && *value) { | |
1056 | vol->linux_gid = | |
1057 | simple_strtoul(value, &value, 0); | |
4523cc30 | 1058 | vol->override_gid = 1; |
1da177e4 LT |
1059 | } |
1060 | } else if (strnicmp(data, "file_mode", 4) == 0) { | |
1061 | if (value && *value) { | |
1062 | vol->file_mode = | |
1063 | simple_strtoul(value, &value, 0); | |
1064 | } | |
1065 | } else if (strnicmp(data, "dir_mode", 4) == 0) { | |
1066 | if (value && *value) { | |
1067 | vol->dir_mode = | |
1068 | simple_strtoul(value, &value, 0); | |
1069 | } | |
1070 | } else if (strnicmp(data, "dirmode", 4) == 0) { | |
1071 | if (value && *value) { | |
1072 | vol->dir_mode = | |
1073 | simple_strtoul(value, &value, 0); | |
1074 | } | |
1075 | } else if (strnicmp(data, "port", 4) == 0) { | |
1076 | if (value && *value) { | |
1077 | vol->port = | |
1078 | simple_strtoul(value, &value, 0); | |
1079 | } | |
1080 | } else if (strnicmp(data, "rsize", 5) == 0) { | |
1081 | if (value && *value) { | |
1082 | vol->rsize = | |
1083 | simple_strtoul(value, &value, 0); | |
1084 | } | |
1085 | } else if (strnicmp(data, "wsize", 5) == 0) { | |
1086 | if (value && *value) { | |
1087 | vol->wsize = | |
1088 | simple_strtoul(value, &value, 0); | |
1089 | } | |
1090 | } else if (strnicmp(data, "sockopt", 5) == 0) { | |
1091 | if (value && *value) { | |
1092 | vol->sockopt = | |
1093 | simple_strtoul(value, &value, 0); | |
1094 | } | |
1095 | } else if (strnicmp(data, "netbiosname", 4) == 0) { | |
1096 | if (!value || !*value || (*value == ' ')) { | |
63135e08 | 1097 | cFYI(1, ("invalid (empty) netbiosname")); |
1da177e4 | 1098 | } else { |
50c2f753 SF |
1099 | memset(vol->source_rfc1001_name, 0x20, 15); |
1100 | for (i = 0; i < 15; i++) { | |
1101 | /* BB are there cases in which a comma can be | |
1da177e4 LT |
1102 | valid in this workstation netbios name (and need |
1103 | special handling)? */ | |
1104 | ||
1105 | /* We do not uppercase netbiosname for user */ | |
50c2f753 | 1106 | if (value[i] == 0) |
1da177e4 | 1107 | break; |
50c2f753 SF |
1108 | else |
1109 | vol->source_rfc1001_name[i] = | |
1110 | value[i]; | |
1da177e4 LT |
1111 | } |
1112 | /* The string has 16th byte zero still from | |
1113 | set at top of the function */ | |
50c2f753 SF |
1114 | if ((i == 15) && (value[i] != 0)) |
1115 | printk(KERN_WARNING "CIFS: netbiosname" | |
1116 | " longer than 15 truncated.\n"); | |
a10faeb2 SF |
1117 | } |
1118 | } else if (strnicmp(data, "servern", 7) == 0) { | |
1119 | /* servernetbiosname specified override *SMBSERVER */ | |
1120 | if (!value || !*value || (*value == ' ')) { | |
467a8f8d | 1121 | cFYI(1, ("empty server netbiosname specified")); |
a10faeb2 SF |
1122 | } else { |
1123 | /* last byte, type, is 0x20 for servr type */ | |
50c2f753 | 1124 | memset(vol->target_rfc1001_name, 0x20, 16); |
a10faeb2 | 1125 | |
50c2f753 | 1126 | for (i = 0; i < 15; i++) { |
a10faeb2 | 1127 | /* BB are there cases in which a comma can be |
50c2f753 SF |
1128 | valid in this workstation netbios name |
1129 | (and need special handling)? */ | |
a10faeb2 | 1130 | |
50c2f753 SF |
1131 | /* user or mount helper must uppercase |
1132 | the netbiosname */ | |
1133 | if (value[i] == 0) | |
a10faeb2 SF |
1134 | break; |
1135 | else | |
50c2f753 SF |
1136 | vol->target_rfc1001_name[i] = |
1137 | value[i]; | |
a10faeb2 SF |
1138 | } |
1139 | /* The string has 16th byte zero still from | |
1140 | set at top of the function */ | |
50c2f753 SF |
1141 | if ((i == 15) && (value[i] != 0)) |
1142 | printk(KERN_WARNING "CIFS: server net" | |
1143 | "biosname longer than 15 truncated.\n"); | |
1da177e4 LT |
1144 | } |
1145 | } else if (strnicmp(data, "credentials", 4) == 0) { | |
1146 | /* ignore */ | |
1147 | } else if (strnicmp(data, "version", 3) == 0) { | |
1148 | /* ignore */ | |
50c2f753 | 1149 | } else if (strnicmp(data, "guest", 5) == 0) { |
1da177e4 LT |
1150 | /* ignore */ |
1151 | } else if (strnicmp(data, "rw", 2) == 0) { | |
1152 | vol->rw = TRUE; | |
1153 | } else if ((strnicmp(data, "suid", 4) == 0) || | |
1154 | (strnicmp(data, "nosuid", 6) == 0) || | |
1155 | (strnicmp(data, "exec", 4) == 0) || | |
1156 | (strnicmp(data, "noexec", 6) == 0) || | |
1157 | (strnicmp(data, "nodev", 5) == 0) || | |
1158 | (strnicmp(data, "noauto", 6) == 0) || | |
1159 | (strnicmp(data, "dev", 3) == 0)) { | |
1160 | /* The mount tool or mount.cifs helper (if present) | |
50c2f753 SF |
1161 | uses these opts to set flags, and the flags are read |
1162 | by the kernel vfs layer before we get here (ie | |
1163 | before read super) so there is no point trying to | |
1164 | parse these options again and set anything and it | |
1165 | is ok to just ignore them */ | |
1da177e4 LT |
1166 | continue; |
1167 | } else if (strnicmp(data, "ro", 2) == 0) { | |
1168 | vol->rw = FALSE; | |
1169 | } else if (strnicmp(data, "hard", 4) == 0) { | |
1170 | vol->retry = 1; | |
1171 | } else if (strnicmp(data, "soft", 4) == 0) { | |
1172 | vol->retry = 0; | |
1173 | } else if (strnicmp(data, "perm", 4) == 0) { | |
1174 | vol->noperm = 0; | |
1175 | } else if (strnicmp(data, "noperm", 6) == 0) { | |
1176 | vol->noperm = 1; | |
6a0b4824 SF |
1177 | } else if (strnicmp(data, "mapchars", 8) == 0) { |
1178 | vol->remap = 1; | |
1179 | } else if (strnicmp(data, "nomapchars", 10) == 0) { | |
1180 | vol->remap = 0; | |
50c2f753 SF |
1181 | } else if (strnicmp(data, "sfu", 3) == 0) { |
1182 | vol->sfu_emul = 1; | |
1183 | } else if (strnicmp(data, "nosfu", 5) == 0) { | |
1184 | vol->sfu_emul = 0; | |
ac67055e JA |
1185 | } else if (strnicmp(data, "posixpaths", 10) == 0) { |
1186 | vol->posix_paths = 1; | |
1187 | } else if (strnicmp(data, "noposixpaths", 12) == 0) { | |
1188 | vol->posix_paths = 0; | |
c18c842b SF |
1189 | } else if (strnicmp(data, "nounix", 6) == 0) { |
1190 | vol->no_linux_ext = 1; | |
1191 | } else if (strnicmp(data, "nolinux", 7) == 0) { | |
1192 | vol->no_linux_ext = 1; | |
50c2f753 | 1193 | } else if ((strnicmp(data, "nocase", 6) == 0) || |
a10faeb2 | 1194 | (strnicmp(data, "ignorecase", 10) == 0)) { |
50c2f753 | 1195 | vol->nocase = 1; |
c46fa8ac SF |
1196 | } else if (strnicmp(data, "brl", 3) == 0) { |
1197 | vol->nobrl = 0; | |
50c2f753 | 1198 | } else if ((strnicmp(data, "nobrl", 5) == 0) || |
1c955187 | 1199 | (strnicmp(data, "nolock", 6) == 0)) { |
c46fa8ac | 1200 | vol->nobrl = 1; |
d3485d37 SF |
1201 | /* turn off mandatory locking in mode |
1202 | if remote locking is turned off since the | |
1203 | local vfs will do advisory */ | |
50c2f753 SF |
1204 | if (vol->file_mode == |
1205 | (S_IALLUGO & ~(S_ISUID | S_IXGRP))) | |
d3485d37 | 1206 | vol->file_mode = S_IALLUGO; |
1da177e4 LT |
1207 | } else if (strnicmp(data, "setuids", 7) == 0) { |
1208 | vol->setuids = 1; | |
1209 | } else if (strnicmp(data, "nosetuids", 9) == 0) { | |
1210 | vol->setuids = 0; | |
1211 | } else if (strnicmp(data, "nohard", 6) == 0) { | |
1212 | vol->retry = 0; | |
1213 | } else if (strnicmp(data, "nosoft", 6) == 0) { | |
1214 | vol->retry = 1; | |
1215 | } else if (strnicmp(data, "nointr", 6) == 0) { | |
1216 | vol->intr = 0; | |
1217 | } else if (strnicmp(data, "intr", 4) == 0) { | |
1218 | vol->intr = 1; | |
50c2f753 | 1219 | } else if (strnicmp(data, "serverino", 7) == 0) { |
1da177e4 | 1220 | vol->server_ino = 1; |
50c2f753 | 1221 | } else if (strnicmp(data, "noserverino", 9) == 0) { |
1da177e4 | 1222 | vol->server_ino = 0; |
50c2f753 | 1223 | } else if (strnicmp(data, "cifsacl", 7) == 0) { |
0a4b92c0 SF |
1224 | vol->cifs_acl = 1; |
1225 | } else if (strnicmp(data, "nocifsacl", 9) == 0) { | |
1226 | vol->cifs_acl = 0; | |
50c2f753 | 1227 | } else if (strnicmp(data, "acl", 3) == 0) { |
1da177e4 | 1228 | vol->no_psx_acl = 0; |
50c2f753 | 1229 | } else if (strnicmp(data, "noacl", 5) == 0) { |
1da177e4 | 1230 | vol->no_psx_acl = 1; |
50c2f753 | 1231 | } else if (strnicmp(data, "sign", 4) == 0) { |
750d1151 SF |
1232 | vol->secFlg |= CIFSSEC_MUST_SIGN; |
1233 | /* } else if (strnicmp(data, "seal",4) == 0) { | |
1234 | vol->secFlg |= CIFSSEC_MUST_SEAL; */ | |
50c2f753 | 1235 | } else if (strnicmp(data, "direct", 6) == 0) { |
1da177e4 | 1236 | vol->direct_io = 1; |
50c2f753 | 1237 | } else if (strnicmp(data, "forcedirectio", 13) == 0) { |
1da177e4 | 1238 | vol->direct_io = 1; |
50c2f753 | 1239 | } else if (strnicmp(data, "in6_addr", 8) == 0) { |
1da177e4 LT |
1240 | if (!value || !*value) { |
1241 | vol->in6_addr = NULL; | |
1242 | } else if (strnlen(value, 49) == 48) { | |
1243 | vol->in6_addr = value; | |
1244 | } else { | |
50c2f753 SF |
1245 | printk(KERN_WARNING "CIFS: ip v6 address not " |
1246 | "48 characters long\n"); | |
1da177e4 LT |
1247 | return 1; |
1248 | } | |
1249 | } else if (strnicmp(data, "noac", 4) == 0) { | |
50c2f753 SF |
1250 | printk(KERN_WARNING "CIFS: Mount option noac not " |
1251 | "supported. Instead set " | |
1252 | "/proc/fs/cifs/LookupCacheEnabled to 0\n"); | |
1da177e4 | 1253 | } else |
50c2f753 SF |
1254 | printk(KERN_WARNING "CIFS: Unknown mount option %s\n", |
1255 | data); | |
1da177e4 LT |
1256 | } |
1257 | if (vol->UNC == NULL) { | |
4523cc30 | 1258 | if (devname == NULL) { |
50c2f753 SF |
1259 | printk(KERN_WARNING "CIFS: Missing UNC name for mount " |
1260 | "target\n"); | |
1da177e4 LT |
1261 | return 1; |
1262 | } | |
1263 | if ((temp_len = strnlen(devname, 300)) < 300) { | |
50c2f753 | 1264 | vol->UNC = kmalloc(temp_len+1, GFP_KERNEL); |
4523cc30 | 1265 | if (vol->UNC == NULL) |
1da177e4 | 1266 | return 1; |
50c2f753 | 1267 | strcpy(vol->UNC, devname); |
1da177e4 LT |
1268 | if (strncmp(vol->UNC, "//", 2) == 0) { |
1269 | vol->UNC[0] = '\\'; | |
1270 | vol->UNC[1] = '\\'; | |
1271 | } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { | |
50c2f753 SF |
1272 | printk(KERN_WARNING "CIFS: UNC Path does not " |
1273 | "begin with // or \\\\ \n"); | |
1da177e4 LT |
1274 | return 1; |
1275 | } | |
1276 | } else { | |
1277 | printk(KERN_WARNING "CIFS: UNC name too long\n"); | |
1278 | return 1; | |
1279 | } | |
1280 | } | |
fb8c4b14 | 1281 | if (vol->UNCip == NULL) |
1da177e4 LT |
1282 | vol->UNCip = &vol->UNC[2]; |
1283 | ||
1284 | return 0; | |
1285 | } | |
1286 | ||
1287 | static struct cifsSesInfo * | |
50c2f753 | 1288 | cifs_find_tcp_session(struct in_addr *target_ip_addr, |
1da177e4 LT |
1289 | struct in6_addr *target_ip6_addr, |
1290 | char *userName, struct TCP_Server_Info **psrvTcp) | |
1291 | { | |
1292 | struct list_head *tmp; | |
1293 | struct cifsSesInfo *ses; | |
1294 | *psrvTcp = NULL; | |
1295 | read_lock(&GlobalSMBSeslock); | |
1296 | ||
1297 | list_for_each(tmp, &GlobalSMBSessionList) { | |
1298 | ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); | |
1299 | if (ses->server) { | |
50c2f753 | 1300 | if ((target_ip_addr && |
1da177e4 LT |
1301 | (ses->server->addr.sockAddr.sin_addr.s_addr |
1302 | == target_ip_addr->s_addr)) || (target_ip6_addr | |
1303 | && memcmp(&ses->server->addr.sockAddr6.sin6_addr, | |
50c2f753 SF |
1304 | target_ip6_addr, sizeof(*target_ip6_addr)))) { |
1305 | /* BB lock server and tcp session and increment | |
1306 | use count here?? */ | |
1307 | ||
1308 | /* found a match on the TCP session */ | |
1309 | *psrvTcp = ses->server; | |
1310 | ||
1da177e4 LT |
1311 | /* BB check if reconnection needed */ |
1312 | if (strncmp | |
1313 | (ses->userName, userName, | |
1314 | MAX_USERNAME_SIZE) == 0){ | |
1315 | read_unlock(&GlobalSMBSeslock); | |
50c2f753 SF |
1316 | /* Found exact match on both TCP and |
1317 | SMB sessions */ | |
1318 | return ses; | |
1da177e4 LT |
1319 | } |
1320 | } | |
1321 | } | |
1322 | /* else tcp and smb sessions need reconnection */ | |
1323 | } | |
1324 | read_unlock(&GlobalSMBSeslock); | |
1325 | return NULL; | |
1326 | } | |
1327 | ||
1328 | static struct cifsTconInfo * | |
1329 | find_unc(__be32 new_target_ip_addr, char *uncName, char *userName) | |
1330 | { | |
1331 | struct list_head *tmp; | |
1332 | struct cifsTconInfo *tcon; | |
1333 | ||
1334 | read_lock(&GlobalSMBSeslock); | |
1335 | list_for_each(tmp, &GlobalTreeConnectionList) { | |
e466e487 | 1336 | cFYI(1, ("Next tcon")); |
1da177e4 LT |
1337 | tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); |
1338 | if (tcon->ses) { | |
1339 | if (tcon->ses->server) { | |
1340 | cFYI(1, | |
e466e487 | 1341 | ("old ip addr: %x == new ip %x ?", |
1da177e4 LT |
1342 | tcon->ses->server->addr.sockAddr.sin_addr. |
1343 | s_addr, new_target_ip_addr)); | |
1344 | if (tcon->ses->server->addr.sockAddr.sin_addr. | |
1345 | s_addr == new_target_ip_addr) { | |
e466e487 | 1346 | /* BB lock tcon, server and tcp session and increment use count here? */ |
1da177e4 LT |
1347 | /* found a match on the TCP session */ |
1348 | /* BB check if reconnection needed */ | |
50c2f753 SF |
1349 | cFYI(1, |
1350 | ("IP match, old UNC: %s new: %s", | |
1da177e4 LT |
1351 | tcon->treeName, uncName)); |
1352 | if (strncmp | |
1353 | (tcon->treeName, uncName, | |
1354 | MAX_TREE_SIZE) == 0) { | |
1355 | cFYI(1, | |
e466e487 | 1356 | ("and old usr: %s new: %s", |
1da177e4 LT |
1357 | tcon->treeName, uncName)); |
1358 | if (strncmp | |
1359 | (tcon->ses->userName, | |
1360 | userName, | |
1361 | MAX_USERNAME_SIZE) == 0) { | |
1362 | read_unlock(&GlobalSMBSeslock); | |
e466e487 SF |
1363 | /* matched smb session |
1364 | (user name */ | |
1365 | return tcon; | |
1da177e4 LT |
1366 | } |
1367 | } | |
1368 | } | |
1369 | } | |
1370 | } | |
1371 | } | |
1372 | read_unlock(&GlobalSMBSeslock); | |
1373 | return NULL; | |
1374 | } | |
1375 | ||
1376 | int | |
1377 | connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, | |
737b758c SF |
1378 | const char *old_path, const struct nls_table *nls_codepage, |
1379 | int remap) | |
1da177e4 LT |
1380 | { |
1381 | unsigned char *referrals = NULL; | |
1382 | unsigned int num_referrals; | |
1383 | int rc = 0; | |
1384 | ||
50c2f753 | 1385 | rc = get_dfs_path(xid, pSesInfo, old_path, nls_codepage, |
737b758c | 1386 | &num_referrals, &referrals, remap); |
1da177e4 LT |
1387 | |
1388 | /* BB Add in code to: if valid refrl, if not ip address contact | |
50c2f753 | 1389 | the helper that resolves tcp names, mount to it, try to |
1da177e4 LT |
1390 | tcon to it unmount it if fail */ |
1391 | ||
f99d49ad | 1392 | kfree(referrals); |
1da177e4 LT |
1393 | |
1394 | return rc; | |
1395 | } | |
1396 | ||
1397 | int | |
50c2f753 SF |
1398 | get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, |
1399 | const struct nls_table *nls_codepage, unsigned int *pnum_referrals, | |
1400 | unsigned char **preferrals, int remap) | |
1da177e4 LT |
1401 | { |
1402 | char *temp_unc; | |
1403 | int rc = 0; | |
1404 | ||
1405 | *pnum_referrals = 0; | |
1406 | ||
1407 | if (pSesInfo->ipc_tid == 0) { | |
1408 | temp_unc = kmalloc(2 /* for slashes */ + | |
50c2f753 SF |
1409 | strnlen(pSesInfo->serverName, |
1410 | SERVER_NAME_LEN_WITH_NULL * 2) | |
1da177e4 LT |
1411 | + 1 + 4 /* slash IPC$ */ + 2, |
1412 | GFP_KERNEL); | |
1413 | if (temp_unc == NULL) | |
1414 | return -ENOMEM; | |
1415 | temp_unc[0] = '\\'; | |
1416 | temp_unc[1] = '\\'; | |
1417 | strcpy(temp_unc + 2, pSesInfo->serverName); | |
1418 | strcpy(temp_unc + 2 + strlen(pSesInfo->serverName), "\\IPC$"); | |
1419 | rc = CIFSTCon(xid, pSesInfo, temp_unc, NULL, nls_codepage); | |
1420 | cFYI(1, | |
50c2f753 | 1421 | ("CIFS Tcon rc = %d ipc_tid = %d", rc, pSesInfo->ipc_tid)); |
1da177e4 LT |
1422 | kfree(temp_unc); |
1423 | } | |
1424 | if (rc == 0) | |
1425 | rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals, | |
737b758c | 1426 | pnum_referrals, nls_codepage, remap); |
1da177e4 LT |
1427 | |
1428 | return rc; | |
1429 | } | |
1430 | ||
1431 | /* See RFC1001 section 14 on representation of Netbios names */ | |
50c2f753 | 1432 | static void rfc1002mangle(char *target, char *source, unsigned int length) |
1da177e4 | 1433 | { |
50c2f753 | 1434 | unsigned int i, j; |
1da177e4 | 1435 | |
50c2f753 | 1436 | for (i = 0, j = 0; i < (length); i++) { |
1da177e4 LT |
1437 | /* mask a nibble at a time and encode */ |
1438 | target[j] = 'A' + (0x0F & (source[i] >> 4)); | |
1439 | target[j+1] = 'A' + (0x0F & source[i]); | |
50c2f753 | 1440 | j += 2; |
1da177e4 LT |
1441 | } |
1442 | ||
1443 | } | |
1444 | ||
1445 | ||
1446 | static int | |
50c2f753 SF |
1447 | ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, |
1448 | char *netbios_name, char *target_name) | |
1da177e4 LT |
1449 | { |
1450 | int rc = 0; | |
1451 | int connected = 0; | |
1452 | __be16 orig_port = 0; | |
1453 | ||
fb8c4b14 | 1454 | if (*csocket == NULL) { |
50c2f753 SF |
1455 | rc = sock_create_kern(PF_INET, SOCK_STREAM, |
1456 | IPPROTO_TCP, csocket); | |
1da177e4 | 1457 | if (rc < 0) { |
50c2f753 | 1458 | cERROR(1, ("Error %d creating socket", rc)); |
1da177e4 LT |
1459 | *csocket = NULL; |
1460 | return rc; | |
1461 | } else { | |
1462 | /* BB other socket options to set KEEPALIVE, NODELAY? */ | |
467a8f8d | 1463 | cFYI(1, ("Socket created")); |
50c2f753 | 1464 | (*csocket)->sk->sk_allocation = GFP_NOFS; |
1da177e4 LT |
1465 | } |
1466 | } | |
1467 | ||
1468 | psin_server->sin_family = AF_INET; | |
fb8c4b14 | 1469 | if (psin_server->sin_port) { /* user overrode default port */ |
1da177e4 LT |
1470 | rc = (*csocket)->ops->connect(*csocket, |
1471 | (struct sockaddr *) psin_server, | |
50c2f753 | 1472 | sizeof (struct sockaddr_in), 0); |
1da177e4 LT |
1473 | if (rc >= 0) |
1474 | connected = 1; | |
50c2f753 | 1475 | } |
1da177e4 | 1476 | |
fb8c4b14 | 1477 | if (!connected) { |
50c2f753 | 1478 | /* save original port so we can retry user specified port |
1da177e4 LT |
1479 | later if fall back ports fail this time */ |
1480 | orig_port = psin_server->sin_port; | |
1481 | ||
1482 | /* do not retry on the same port we just failed on */ | |
fb8c4b14 | 1483 | if (psin_server->sin_port != htons(CIFS_PORT)) { |
1da177e4 LT |
1484 | psin_server->sin_port = htons(CIFS_PORT); |
1485 | ||
1486 | rc = (*csocket)->ops->connect(*csocket, | |
1487 | (struct sockaddr *) psin_server, | |
50c2f753 | 1488 | sizeof (struct sockaddr_in), 0); |
1da177e4 LT |
1489 | if (rc >= 0) |
1490 | connected = 1; | |
1491 | } | |
1492 | } | |
1493 | if (!connected) { | |
1494 | psin_server->sin_port = htons(RFC1001_PORT); | |
1495 | rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) | |
50c2f753 SF |
1496 | psin_server, |
1497 | sizeof (struct sockaddr_in), 0); | |
1498 | if (rc >= 0) | |
1da177e4 LT |
1499 | connected = 1; |
1500 | } | |
1501 | ||
1502 | /* give up here - unless we want to retry on different | |
1503 | protocol families some day */ | |
1504 | if (!connected) { | |
fb8c4b14 | 1505 | if (orig_port) |
1da177e4 | 1506 | psin_server->sin_port = orig_port; |
50c2f753 | 1507 | cFYI(1, ("Error %d connecting to server via ipv4", rc)); |
1da177e4 LT |
1508 | sock_release(*csocket); |
1509 | *csocket = NULL; | |
1510 | return rc; | |
1511 | } | |
50c2f753 SF |
1512 | /* Eventually check for other socket options to change from |
1513 | the default. sock_setsockopt not used because it expects | |
1da177e4 | 1514 | user space buffer */ |
50c2f753 SF |
1515 | cFYI(1, ("sndbuf %d rcvbuf %d rcvtimeo 0x%lx", |
1516 | (*csocket)->sk->sk_sndbuf, | |
b387eaeb | 1517 | (*csocket)->sk->sk_rcvbuf, (*csocket)->sk->sk_rcvtimeo)); |
1da177e4 | 1518 | (*csocket)->sk->sk_rcvtimeo = 7 * HZ; |
b387eaeb | 1519 | /* make the bufsizes depend on wsize/rsize and max requests */ |
fb8c4b14 | 1520 | if ((*csocket)->sk->sk_sndbuf < (200 * 1024)) |
b387eaeb | 1521 | (*csocket)->sk->sk_sndbuf = 200 * 1024; |
fb8c4b14 | 1522 | if ((*csocket)->sk->sk_rcvbuf < (140 * 1024)) |
b387eaeb | 1523 | (*csocket)->sk->sk_rcvbuf = 140 * 1024; |
1da177e4 LT |
1524 | |
1525 | /* send RFC1001 sessinit */ | |
fb8c4b14 | 1526 | if (psin_server->sin_port == htons(RFC1001_PORT)) { |
1da177e4 | 1527 | /* some servers require RFC1001 sessinit before sending |
50c2f753 | 1528 | negprot - BB check reconnection in case where second |
1da177e4 | 1529 | sessinit is sent but no second negprot */ |
50c2f753 SF |
1530 | struct rfc1002_session_packet *ses_init_buf; |
1531 | struct smb_hdr *smb_buf; | |
1532 | ses_init_buf = kzalloc(sizeof(struct rfc1002_session_packet), | |
1533 | GFP_KERNEL); | |
fb8c4b14 | 1534 | if (ses_init_buf) { |
1da177e4 | 1535 | ses_init_buf->trailer.session_req.called_len = 32; |
fb8c4b14 | 1536 | if (target_name && (target_name[0] != 0)) { |
a10faeb2 SF |
1537 | rfc1002mangle(ses_init_buf->trailer.session_req.called_name, |
1538 | target_name, 16); | |
1539 | } else { | |
1540 | rfc1002mangle(ses_init_buf->trailer.session_req.called_name, | |
50c2f753 | 1541 | DEFAULT_CIFS_CALLED_NAME, 16); |
a10faeb2 SF |
1542 | } |
1543 | ||
1da177e4 LT |
1544 | ses_init_buf->trailer.session_req.calling_len = 32; |
1545 | /* calling name ends in null (byte 16) from old smb | |
1546 | convention. */ | |
50c2f753 | 1547 | if (netbios_name && (netbios_name[0] != 0)) { |
1da177e4 | 1548 | rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, |
50c2f753 | 1549 | netbios_name, 16); |
1da177e4 LT |
1550 | } else { |
1551 | rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, | |
50c2f753 | 1552 | "LINUX_CIFS_CLNT", 16); |
1da177e4 LT |
1553 | } |
1554 | ses_init_buf->trailer.session_req.scope1 = 0; | |
1555 | ses_init_buf->trailer.session_req.scope2 = 0; | |
1556 | smb_buf = (struct smb_hdr *)ses_init_buf; | |
1557 | /* sizeof RFC1002_SESSION_REQUEST with no scope */ | |
1558 | smb_buf->smb_buf_length = 0x81000044; | |
1559 | rc = smb_send(*csocket, smb_buf, 0x44, | |
1560 | (struct sockaddr *)psin_server); | |
1561 | kfree(ses_init_buf); | |
50c2f753 | 1562 | msleep(1); /* RFC1001 layer in at least one server |
083d3a2c SF |
1563 | requires very short break before negprot |
1564 | presumably because not expecting negprot | |
1565 | to follow so fast. This is a simple | |
50c2f753 | 1566 | solution that works without |
083d3a2c SF |
1567 | complicating the code and causes no |
1568 | significant slowing down on mount | |
1569 | for everyone else */ | |
1da177e4 | 1570 | } |
50c2f753 | 1571 | /* else the negprot may still work without this |
1da177e4 | 1572 | even though malloc failed */ |
50c2f753 | 1573 | |
1da177e4 | 1574 | } |
50c2f753 | 1575 | |
1da177e4 LT |
1576 | return rc; |
1577 | } | |
1578 | ||
1579 | static int | |
1580 | ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket) | |
1581 | { | |
1582 | int rc = 0; | |
1583 | int connected = 0; | |
1584 | __be16 orig_port = 0; | |
1585 | ||
fb8c4b14 | 1586 | if (*csocket == NULL) { |
50c2f753 SF |
1587 | rc = sock_create_kern(PF_INET6, SOCK_STREAM, |
1588 | IPPROTO_TCP, csocket); | |
1da177e4 | 1589 | if (rc < 0) { |
50c2f753 | 1590 | cERROR(1, ("Error %d creating ipv6 socket", rc)); |
1da177e4 LT |
1591 | *csocket = NULL; |
1592 | return rc; | |
1593 | } else { | |
1594 | /* BB other socket options to set KEEPALIVE, NODELAY? */ | |
fb8c4b14 | 1595 | cFYI(1, ("ipv6 Socket created")); |
1da177e4 LT |
1596 | (*csocket)->sk->sk_allocation = GFP_NOFS; |
1597 | } | |
1598 | } | |
1599 | ||
1600 | psin_server->sin6_family = AF_INET6; | |
1601 | ||
fb8c4b14 | 1602 | if (psin_server->sin6_port) { /* user overrode default port */ |
1da177e4 LT |
1603 | rc = (*csocket)->ops->connect(*csocket, |
1604 | (struct sockaddr *) psin_server, | |
50c2f753 | 1605 | sizeof (struct sockaddr_in6), 0); |
1da177e4 LT |
1606 | if (rc >= 0) |
1607 | connected = 1; | |
50c2f753 | 1608 | } |
1da177e4 | 1609 | |
fb8c4b14 | 1610 | if (!connected) { |
50c2f753 | 1611 | /* save original port so we can retry user specified port |
1da177e4 LT |
1612 | later if fall back ports fail this time */ |
1613 | ||
1614 | orig_port = psin_server->sin6_port; | |
1615 | /* do not retry on the same port we just failed on */ | |
fb8c4b14 | 1616 | if (psin_server->sin6_port != htons(CIFS_PORT)) { |
1da177e4 LT |
1617 | psin_server->sin6_port = htons(CIFS_PORT); |
1618 | ||
1619 | rc = (*csocket)->ops->connect(*csocket, | |
1620 | (struct sockaddr *) psin_server, | |
50c2f753 | 1621 | sizeof (struct sockaddr_in6), 0); |
1da177e4 LT |
1622 | if (rc >= 0) |
1623 | connected = 1; | |
1624 | } | |
1625 | } | |
1626 | if (!connected) { | |
1627 | psin_server->sin6_port = htons(RFC1001_PORT); | |
1628 | rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) | |
50c2f753 SF |
1629 | psin_server, sizeof (struct sockaddr_in6), 0); |
1630 | if (rc >= 0) | |
1da177e4 LT |
1631 | connected = 1; |
1632 | } | |
1633 | ||
1634 | /* give up here - unless we want to retry on different | |
1635 | protocol families some day */ | |
1636 | if (!connected) { | |
fb8c4b14 | 1637 | if (orig_port) |
1da177e4 | 1638 | psin_server->sin6_port = orig_port; |
50c2f753 | 1639 | cFYI(1, ("Error %d connecting to server via ipv6", rc)); |
1da177e4 LT |
1640 | sock_release(*csocket); |
1641 | *csocket = NULL; | |
1642 | return rc; | |
1643 | } | |
50c2f753 SF |
1644 | /* Eventually check for other socket options to change from |
1645 | the default. sock_setsockopt not used because it expects | |
1da177e4 LT |
1646 | user space buffer */ |
1647 | (*csocket)->sk->sk_rcvtimeo = 7 * HZ; | |
50c2f753 | 1648 | |
1da177e4 LT |
1649 | return rc; |
1650 | } | |
1651 | ||
50c2f753 SF |
1652 | void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, |
1653 | struct super_block *sb, struct smb_vol *vol_info) | |
8af18971 SF |
1654 | { |
1655 | /* if we are reconnecting then should we check to see if | |
1656 | * any requested capabilities changed locally e.g. via | |
1657 | * remount but we can not do much about it here | |
1658 | * if they have (even if we could detect it by the following) | |
1659 | * Perhaps we could add a backpointer to array of sb from tcon | |
1660 | * or if we change to make all sb to same share the same | |
1661 | * sb as NFS - then we only have one backpointer to sb. | |
1662 | * What if we wanted to mount the server share twice once with | |
1663 | * and once without posixacls or posix paths? */ | |
1664 | __u64 saved_cap = le64_to_cpu(tcon->fsUnixInfo.Capability); | |
50c2f753 | 1665 | |
c18c842b SF |
1666 | if (vol_info && vol_info->no_linux_ext) { |
1667 | tcon->fsUnixInfo.Capability = 0; | |
1668 | tcon->unix_ext = 0; /* Unix Extensions disabled */ | |
1669 | cFYI(1, ("Linux protocol extensions disabled")); | |
1670 | return; | |
1671 | } else if (vol_info) | |
1672 | tcon->unix_ext = 1; /* Unix Extensions supported */ | |
1673 | ||
1674 | if (tcon->unix_ext == 0) { | |
1675 | cFYI(1, ("Unix extensions disabled so not set on reconnect")); | |
1676 | return; | |
1677 | } | |
50c2f753 | 1678 | |
fb8c4b14 | 1679 | if (!CIFSSMBQFSUnixInfo(xid, tcon)) { |
8af18971 | 1680 | __u64 cap = le64_to_cpu(tcon->fsUnixInfo.Capability); |
50c2f753 | 1681 | |
8af18971 SF |
1682 | /* check for reconnect case in which we do not |
1683 | want to change the mount behavior if we can avoid it */ | |
fb8c4b14 | 1684 | if (vol_info == NULL) { |
50c2f753 | 1685 | /* turn off POSIX ACL and PATHNAMES if not set |
8af18971 SF |
1686 | originally at mount time */ |
1687 | if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0) | |
1688 | cap &= ~CIFS_UNIX_POSIX_ACL_CAP; | |
1689 | if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) | |
1690 | cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; | |
8af18971 | 1691 | } |
50c2f753 | 1692 | |
8af18971 | 1693 | cap &= CIFS_UNIX_CAP_MASK; |
75865f8c | 1694 | if (vol_info && vol_info->no_psx_acl) |
8af18971 | 1695 | cap &= ~CIFS_UNIX_POSIX_ACL_CAP; |
75865f8c | 1696 | else if (CIFS_UNIX_POSIX_ACL_CAP & cap) { |
fb8c4b14 SF |
1697 | cFYI(1, ("negotiated posix acl support")); |
1698 | if (sb) | |
8af18971 SF |
1699 | sb->s_flags |= MS_POSIXACL; |
1700 | } | |
1701 | ||
75865f8c | 1702 | if (vol_info && vol_info->posix_paths == 0) |
8af18971 | 1703 | cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; |
75865f8c | 1704 | else if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) { |
fb8c4b14 | 1705 | cFYI(1, ("negotiate posix pathnames")); |
75865f8c | 1706 | if (sb) |
50c2f753 | 1707 | CIFS_SB(sb)->mnt_cifs_flags |= |
8af18971 SF |
1708 | CIFS_MOUNT_POSIX_PATHS; |
1709 | } | |
50c2f753 | 1710 | |
984acfe1 SF |
1711 | /* We might be setting the path sep back to a different |
1712 | form if we are reconnecting and the server switched its | |
50c2f753 | 1713 | posix path capability for this share */ |
75865f8c | 1714 | if (sb && (CIFS_SB(sb)->prepathlen > 0)) |
984acfe1 | 1715 | CIFS_SB(sb)->prepath[0] = CIFS_DIR_SEP(CIFS_SB(sb)); |
75865f8c SF |
1716 | |
1717 | if (sb && (CIFS_SB(sb)->rsize > 127 * 1024)) { | |
1718 | if ((cap & CIFS_UNIX_LARGE_READ_CAP) == 0) { | |
1719 | CIFS_SB(sb)->rsize = 127 * 1024; | |
1720 | #ifdef CONFIG_CIFS_DEBUG2 | |
fb8c4b14 | 1721 | cFYI(1, ("larger reads not supported by srv")); |
75865f8c SF |
1722 | #endif |
1723 | } | |
1724 | } | |
50c2f753 SF |
1725 | |
1726 | ||
1727 | cFYI(1, ("Negotiate caps 0x%x", (int)cap)); | |
8af18971 | 1728 | #ifdef CONFIG_CIFS_DEBUG2 |
75865f8c | 1729 | if (cap & CIFS_UNIX_FCNTL_CAP) |
fb8c4b14 | 1730 | cFYI(1, ("FCNTL cap")); |
75865f8c | 1731 | if (cap & CIFS_UNIX_EXTATTR_CAP) |
fb8c4b14 | 1732 | cFYI(1, ("EXTATTR cap")); |
75865f8c | 1733 | if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) |
fb8c4b14 | 1734 | cFYI(1, ("POSIX path cap")); |
75865f8c | 1735 | if (cap & CIFS_UNIX_XATTR_CAP) |
fb8c4b14 | 1736 | cFYI(1, ("XATTR cap")); |
75865f8c | 1737 | if (cap & CIFS_UNIX_POSIX_ACL_CAP) |
fb8c4b14 | 1738 | cFYI(1, ("POSIX ACL cap")); |
75865f8c | 1739 | if (cap & CIFS_UNIX_LARGE_READ_CAP) |
fb8c4b14 | 1740 | cFYI(1, ("very large read cap")); |
75865f8c | 1741 | if (cap & CIFS_UNIX_LARGE_WRITE_CAP) |
fb8c4b14 | 1742 | cFYI(1, ("very large write cap")); |
8af18971 SF |
1743 | #endif /* CIFS_DEBUG2 */ |
1744 | if (CIFSSMBSetFSUnixInfo(xid, tcon, cap)) { | |
5a44b319 SF |
1745 | if (vol_info == NULL) |
1746 | cFYI(1, ("resetting capabilities failed")); | |
1747 | else | |
1748 | cERROR(1, ("Negotiating Unix capabilities " | |
1749 | "with the server failed. Consider " | |
1750 | "mounting with the Unix Extensions\n" | |
1751 | "disabled, if problems are found, " | |
1752 | "by specifying the nounix mount " | |
2224f4e5 | 1753 | "option.")); |
5a44b319 | 1754 | |
8af18971 SF |
1755 | } |
1756 | } | |
1757 | } | |
1758 | ||
1da177e4 LT |
1759 | int |
1760 | cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, | |
1761 | char *mount_data, const char *devname) | |
1762 | { | |
1763 | int rc = 0; | |
1764 | int xid; | |
1765 | int address_type = AF_INET; | |
1766 | struct socket *csocket = NULL; | |
1767 | struct sockaddr_in sin_server; | |
1768 | struct sockaddr_in6 sin_server6; | |
1769 | struct smb_vol volume_info; | |
1770 | struct cifsSesInfo *pSesInfo = NULL; | |
1771 | struct cifsSesInfo *existingCifsSes = NULL; | |
1772 | struct cifsTconInfo *tcon = NULL; | |
1773 | struct TCP_Server_Info *srvTcp = NULL; | |
1774 | ||
1775 | xid = GetXid(); | |
1776 | ||
1777 | /* cFYI(1, ("Entering cifs_mount. Xid: %d with: %s", xid, mount_data)); */ | |
50c2f753 SF |
1778 | |
1779 | memset(&volume_info, 0, sizeof(struct smb_vol)); | |
1da177e4 | 1780 | if (cifs_parse_mount_options(mount_data, devname, &volume_info)) { |
f99d49ad JJ |
1781 | kfree(volume_info.UNC); |
1782 | kfree(volume_info.password); | |
2fe87f02 | 1783 | kfree(volume_info.prepath); |
1da177e4 LT |
1784 | FreeXid(xid); |
1785 | return -EINVAL; | |
1786 | } | |
1787 | ||
8426c39c | 1788 | if (volume_info.nullauth) { |
fb8c4b14 | 1789 | cFYI(1, ("null user")); |
8426c39c JL |
1790 | volume_info.username = NULL; |
1791 | } else if (volume_info.username) { | |
1da177e4 | 1792 | /* BB fixme parse for domain name here */ |
467a8f8d | 1793 | cFYI(1, ("Username: %s", volume_info.username)); |
1da177e4 | 1794 | } else { |
bf820679 | 1795 | cifserror("No username specified"); |
50c2f753 SF |
1796 | /* In userspace mount helper we can get user name from alternate |
1797 | locations such as env variables and files on disk */ | |
f99d49ad JJ |
1798 | kfree(volume_info.UNC); |
1799 | kfree(volume_info.password); | |
2fe87f02 | 1800 | kfree(volume_info.prepath); |
1da177e4 LT |
1801 | FreeXid(xid); |
1802 | return -EINVAL; | |
1803 | } | |
1804 | ||
1805 | if (volume_info.UNCip && volume_info.UNC) { | |
50c2f753 SF |
1806 | rc = cifs_inet_pton(AF_INET, volume_info.UNCip, |
1807 | &sin_server.sin_addr.s_addr); | |
1da177e4 | 1808 | |
fb8c4b14 | 1809 | if (rc <= 0) { |
1da177e4 | 1810 | /* not ipv4 address, try ipv6 */ |
50c2f753 SF |
1811 | rc = cifs_inet_pton(AF_INET6, volume_info.UNCip, |
1812 | &sin_server6.sin6_addr.in6_u); | |
fb8c4b14 | 1813 | if (rc > 0) |
1da177e4 LT |
1814 | address_type = AF_INET6; |
1815 | } else { | |
1816 | address_type = AF_INET; | |
1817 | } | |
50c2f753 | 1818 | |
fb8c4b14 | 1819 | if (rc <= 0) { |
1da177e4 | 1820 | /* we failed translating address */ |
f99d49ad JJ |
1821 | kfree(volume_info.UNC); |
1822 | kfree(volume_info.password); | |
2fe87f02 | 1823 | kfree(volume_info.prepath); |
1da177e4 LT |
1824 | FreeXid(xid); |
1825 | return -EINVAL; | |
1826 | } | |
1827 | ||
1828 | cFYI(1, ("UNC: %s ip: %s", volume_info.UNC, volume_info.UNCip)); | |
1829 | /* success */ | |
1830 | rc = 0; | |
50c2f753 SF |
1831 | } else if (volume_info.UNCip) { |
1832 | /* BB using ip addr as server name to connect to the | |
1833 | DFS root below */ | |
1834 | cERROR(1, ("Connecting to DFS root not implemented yet")); | |
f99d49ad JJ |
1835 | kfree(volume_info.UNC); |
1836 | kfree(volume_info.password); | |
2fe87f02 | 1837 | kfree(volume_info.prepath); |
1da177e4 LT |
1838 | FreeXid(xid); |
1839 | return -EINVAL; | |
1840 | } else /* which servers DFS root would we conect to */ { | |
1841 | cERROR(1, | |
50c2f753 SF |
1842 | ("CIFS mount error: No UNC path (e.g. -o " |
1843 | "unc=//192.168.1.100/public) specified")); | |
f99d49ad JJ |
1844 | kfree(volume_info.UNC); |
1845 | kfree(volume_info.password); | |
2fe87f02 | 1846 | kfree(volume_info.prepath); |
1da177e4 LT |
1847 | FreeXid(xid); |
1848 | return -EINVAL; | |
1849 | } | |
1850 | ||
1851 | /* this is needed for ASCII cp to Unicode converts */ | |
fb8c4b14 | 1852 | if (volume_info.iocharset == NULL) { |
1da177e4 LT |
1853 | cifs_sb->local_nls = load_nls_default(); |
1854 | /* load_nls_default can not return null */ | |
1855 | } else { | |
1856 | cifs_sb->local_nls = load_nls(volume_info.iocharset); | |
fb8c4b14 | 1857 | if (cifs_sb->local_nls == NULL) { |
50c2f753 SF |
1858 | cERROR(1, ("CIFS mount error: iocharset %s not found", |
1859 | volume_info.iocharset)); | |
f99d49ad JJ |
1860 | kfree(volume_info.UNC); |
1861 | kfree(volume_info.password); | |
2fe87f02 | 1862 | kfree(volume_info.prepath); |
1da177e4 LT |
1863 | FreeXid(xid); |
1864 | return -ELIBACC; | |
1865 | } | |
1866 | } | |
1867 | ||
fb8c4b14 | 1868 | if (address_type == AF_INET) |
1da177e4 LT |
1869 | existingCifsSes = cifs_find_tcp_session(&sin_server.sin_addr, |
1870 | NULL /* no ipv6 addr */, | |
1871 | volume_info.username, &srvTcp); | |
fb8c4b14 SF |
1872 | else if (address_type == AF_INET6) { |
1873 | cFYI(1, ("looking for ipv6 address")); | |
1da177e4 LT |
1874 | existingCifsSes = cifs_find_tcp_session(NULL /* no ipv4 addr */, |
1875 | &sin_server6.sin6_addr, | |
1876 | volume_info.username, &srvTcp); | |
5858ae44 | 1877 | } else { |
f99d49ad JJ |
1878 | kfree(volume_info.UNC); |
1879 | kfree(volume_info.password); | |
2fe87f02 | 1880 | kfree(volume_info.prepath); |
1da177e4 LT |
1881 | FreeXid(xid); |
1882 | return -EINVAL; | |
1883 | } | |
1884 | ||
1da177e4 | 1885 | if (srvTcp) { |
50c2f753 | 1886 | cFYI(1, ("Existing tcp session with server found")); |
1da177e4 | 1887 | } else { /* create socket */ |
4523cc30 | 1888 | if (volume_info.port) |
1da177e4 LT |
1889 | sin_server.sin_port = htons(volume_info.port); |
1890 | else | |
1891 | sin_server.sin_port = 0; | |
5858ae44 | 1892 | if (address_type == AF_INET6) { |
fb8c4b14 | 1893 | cFYI(1, ("attempting ipv6 connect")); |
5858ae44 SF |
1894 | /* BB should we allow ipv6 on port 139? */ |
1895 | /* other OS never observed in Wild doing 139 with v6 */ | |
50c2f753 SF |
1896 | rc = ipv6_connect(&sin_server6, &csocket); |
1897 | } else | |
1898 | rc = ipv4_connect(&sin_server, &csocket, | |
a10faeb2 SF |
1899 | volume_info.source_rfc1001_name, |
1900 | volume_info.target_rfc1001_name); | |
1da177e4 | 1901 | if (rc < 0) { |
50c2f753 SF |
1902 | cERROR(1, ("Error connecting to IPv4 socket. " |
1903 | "Aborting operation")); | |
4523cc30 | 1904 | if (csocket != NULL) |
1da177e4 | 1905 | sock_release(csocket); |
f99d49ad JJ |
1906 | kfree(volume_info.UNC); |
1907 | kfree(volume_info.password); | |
2fe87f02 | 1908 | kfree(volume_info.prepath); |
1da177e4 LT |
1909 | FreeXid(xid); |
1910 | return rc; | |
1911 | } | |
1912 | ||
1913 | srvTcp = kmalloc(sizeof (struct TCP_Server_Info), GFP_KERNEL); | |
1914 | if (srvTcp == NULL) { | |
1915 | rc = -ENOMEM; | |
1916 | sock_release(csocket); | |
f99d49ad JJ |
1917 | kfree(volume_info.UNC); |
1918 | kfree(volume_info.password); | |
2fe87f02 | 1919 | kfree(volume_info.prepath); |
1da177e4 LT |
1920 | FreeXid(xid); |
1921 | return rc; | |
1922 | } else { | |
1923 | memset(srvTcp, 0, sizeof (struct TCP_Server_Info)); | |
50c2f753 SF |
1924 | memcpy(&srvTcp->addr.sockAddr, &sin_server, |
1925 | sizeof (struct sockaddr_in)); | |
1926 | atomic_set(&srvTcp->inFlight, 0); | |
1da177e4 LT |
1927 | /* BB Add code for ipv6 case too */ |
1928 | srvTcp->ssocket = csocket; | |
1929 | srvTcp->protocolType = IPV4; | |
1930 | init_waitqueue_head(&srvTcp->response_q); | |
1931 | init_waitqueue_head(&srvTcp->request_q); | |
1932 | INIT_LIST_HEAD(&srvTcp->pending_mid_q); | |
1933 | /* at this point we are the only ones with the pointer | |
1934 | to the struct since the kernel thread not created yet | |
1935 | so no need to spinlock this init of tcpStatus */ | |
1936 | srvTcp->tcpStatus = CifsNew; | |
1937 | init_MUTEX(&srvTcp->tcpSem); | |
aaf737ad | 1938 | srvTcp->tsk = kthread_run((void *)(void *)cifs_demultiplex_thread, srvTcp, "cifsd"); |
4523cc30 | 1939 | if ( IS_ERR(srvTcp->tsk) ) { |
aaf737ad | 1940 | rc = PTR_ERR(srvTcp->tsk); |
50c2f753 | 1941 | cERROR(1, ("error %d create cifsd thread", rc)); |
aaf737ad | 1942 | srvTcp->tsk = NULL; |
1da177e4 | 1943 | sock_release(csocket); |
f99d49ad JJ |
1944 | kfree(volume_info.UNC); |
1945 | kfree(volume_info.password); | |
2fe87f02 | 1946 | kfree(volume_info.prepath); |
1da177e4 LT |
1947 | FreeXid(xid); |
1948 | return rc; | |
f191401f SF |
1949 | } |
1950 | wait_for_completion(&cifsd_complete); | |
1951 | rc = 0; | |
50c2f753 SF |
1952 | memcpy(srvTcp->workstation_RFC1001_name, |
1953 | volume_info.source_rfc1001_name, 16); | |
1954 | memcpy(srvTcp->server_RFC1001_name, | |
1955 | volume_info.target_rfc1001_name, 16); | |
ad009ac9 | 1956 | srvTcp->sequence_number = 0; |
1da177e4 LT |
1957 | } |
1958 | } | |
1959 | ||
1960 | if (existingCifsSes) { | |
1961 | pSesInfo = existingCifsSes; | |
bf820679 | 1962 | cFYI(1, ("Existing smb sess found")); |
f99d49ad | 1963 | kfree(volume_info.password); |
1da177e4 LT |
1964 | /* volume_info.UNC freed at end of function */ |
1965 | } else if (!rc) { | |
bf820679 | 1966 | cFYI(1, ("Existing smb sess not found")); |
1da177e4 LT |
1967 | pSesInfo = sesInfoAlloc(); |
1968 | if (pSesInfo == NULL) | |
1969 | rc = -ENOMEM; | |
1970 | else { | |
1971 | pSesInfo->server = srvTcp; | |
1972 | sprintf(pSesInfo->serverName, "%u.%u.%u.%u", | |
1973 | NIPQUAD(sin_server.sin_addr.s_addr)); | |
1974 | } | |
1975 | ||
50c2f753 SF |
1976 | if (!rc) { |
1977 | /* volume_info.password freed at unmount */ | |
1da177e4 LT |
1978 | if (volume_info.password) |
1979 | pSesInfo->password = volume_info.password; | |
1980 | if (volume_info.username) | |
1981 | strncpy(pSesInfo->userName, | |
50c2f753 SF |
1982 | volume_info.username, |
1983 | MAX_USERNAME_SIZE); | |
3979877e SF |
1984 | if (volume_info.domainname) { |
1985 | int len = strlen(volume_info.domainname); | |
50c2f753 | 1986 | pSesInfo->domainName = |
3979877e | 1987 | kmalloc(len + 1, GFP_KERNEL); |
4523cc30 | 1988 | if (pSesInfo->domainName) |
3979877e SF |
1989 | strcpy(pSesInfo->domainName, |
1990 | volume_info.domainname); | |
1991 | } | |
1da177e4 | 1992 | pSesInfo->linux_uid = volume_info.linux_uid; |
750d1151 | 1993 | pSesInfo->overrideSecFlg = volume_info.secFlg; |
1da177e4 | 1994 | down(&pSesInfo->sesSem); |
189acaae | 1995 | /* BB FIXME need to pass vol->secFlgs BB */ |
50c2f753 SF |
1996 | rc = cifs_setup_session(xid, pSesInfo, |
1997 | cifs_sb->local_nls); | |
1da177e4 | 1998 | up(&pSesInfo->sesSem); |
4523cc30 | 1999 | if (!rc) |
1da177e4 LT |
2000 | atomic_inc(&srvTcp->socketUseCount); |
2001 | } else | |
f99d49ad | 2002 | kfree(volume_info.password); |
1da177e4 | 2003 | } |
50c2f753 | 2004 | |
1da177e4 LT |
2005 | /* search for existing tcon to this server share */ |
2006 | if (!rc) { | |
4523cc30 | 2007 | if (volume_info.rsize > CIFSMaxBufSize) { |
50c2f753 | 2008 | cERROR(1, ("rsize %d too large, using MaxBufSize", |
0ae0efad SF |
2009 | volume_info.rsize)); |
2010 | cifs_sb->rsize = CIFSMaxBufSize; | |
75865f8c SF |
2011 | } else if ((volume_info.rsize) && |
2012 | (volume_info.rsize <= CIFSMaxBufSize)) | |
1da177e4 | 2013 | cifs_sb->rsize = volume_info.rsize; |
0ae0efad SF |
2014 | else /* default */ |
2015 | cifs_sb->rsize = CIFSMaxBufSize; | |
2016 | ||
4523cc30 | 2017 | if (volume_info.wsize > PAGEVEC_SIZE * PAGE_CACHE_SIZE) { |
50c2f753 | 2018 | cERROR(1, ("wsize %d too large, using 4096 instead", |
0ae0efad SF |
2019 | volume_info.wsize)); |
2020 | cifs_sb->wsize = 4096; | |
4523cc30 | 2021 | } else if (volume_info.wsize) |
1da177e4 LT |
2022 | cifs_sb->wsize = volume_info.wsize; |
2023 | else | |
50c2f753 | 2024 | cifs_sb->wsize = |
1877c9ea SF |
2025 | min_t(const int, PAGEVEC_SIZE * PAGE_CACHE_SIZE, |
2026 | 127*1024); | |
17cbbafe | 2027 | /* old default of CIFSMaxBufSize was too small now |
50c2f753 | 2028 | that SMB Write2 can send multiple pages in kvec. |
17cbbafe SF |
2029 | RFC1001 does not describe what happens when frame |
2030 | bigger than 128K is sent so use that as max in | |
2031 | conjunction with 52K kvec constraint on arch with 4K | |
2032 | page size */ | |
2033 | ||
4523cc30 | 2034 | if (cifs_sb->rsize < 2048) { |
50c2f753 | 2035 | cifs_sb->rsize = 2048; |
6cec2aed | 2036 | /* Windows ME may prefer this */ |
467a8f8d | 2037 | cFYI(1, ("readsize set to minimum: 2048")); |
1da177e4 | 2038 | } |
2fe87f02 SF |
2039 | /* calculate prepath */ |
2040 | cifs_sb->prepath = volume_info.prepath; | |
4523cc30 | 2041 | if (cifs_sb->prepath) { |
2fe87f02 SF |
2042 | cifs_sb->prepathlen = strlen(cifs_sb->prepath); |
2043 | cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb); | |
2044 | volume_info.prepath = NULL; | |
50c2f753 | 2045 | } else |
2fe87f02 | 2046 | cifs_sb->prepathlen = 0; |
1da177e4 LT |
2047 | cifs_sb->mnt_uid = volume_info.linux_uid; |
2048 | cifs_sb->mnt_gid = volume_info.linux_gid; | |
2049 | cifs_sb->mnt_file_mode = volume_info.file_mode; | |
2050 | cifs_sb->mnt_dir_mode = volume_info.dir_mode; | |
467a8f8d SF |
2051 | cFYI(1, ("file mode: 0x%x dir mode: 0x%x", |
2052 | cifs_sb->mnt_file_mode, cifs_sb->mnt_dir_mode)); | |
1da177e4 | 2053 | |
4523cc30 | 2054 | if (volume_info.noperm) |
1da177e4 | 2055 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM; |
4523cc30 | 2056 | if (volume_info.setuids) |
1da177e4 | 2057 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SET_UID; |
4523cc30 | 2058 | if (volume_info.server_ino) |
1da177e4 | 2059 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM; |
4523cc30 | 2060 | if (volume_info.remap) |
6a0b4824 | 2061 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR; |
4523cc30 | 2062 | if (volume_info.no_xattr) |
1da177e4 | 2063 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR; |
4523cc30 | 2064 | if (volume_info.sfu_emul) |
d7245c2c | 2065 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL; |
4523cc30 | 2066 | if (volume_info.nobrl) |
c46fa8ac | 2067 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_BRL; |
4523cc30 | 2068 | if (volume_info.cifs_acl) |
0a4b92c0 | 2069 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_ACL; |
4523cc30 SF |
2070 | if (volume_info.override_uid) |
2071 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_UID; | |
2072 | if (volume_info.override_gid) | |
2073 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_OVERR_GID; | |
2074 | if (volume_info.direct_io) { | |
467a8f8d | 2075 | cFYI(1, ("mounting share using direct i/o")); |
1da177e4 LT |
2076 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO; |
2077 | } | |
2078 | ||
2079 | tcon = | |
2080 | find_unc(sin_server.sin_addr.s_addr, volume_info.UNC, | |
2081 | volume_info.username); | |
2082 | if (tcon) { | |
bf820679 | 2083 | cFYI(1, ("Found match on UNC path")); |
1da177e4 LT |
2084 | /* we can have only one retry value for a connection |
2085 | to a share so for resources mounted more than once | |
50c2f753 | 2086 | to the same server share the last value passed in |
1da177e4 LT |
2087 | for the retry flag is used */ |
2088 | tcon->retry = volume_info.retry; | |
d3485d37 | 2089 | tcon->nocase = volume_info.nocase; |
1da177e4 LT |
2090 | } else { |
2091 | tcon = tconInfoAlloc(); | |
2092 | if (tcon == NULL) | |
2093 | rc = -ENOMEM; | |
2094 | else { | |
50c2f753 | 2095 | /* check for null share name ie connecting to |
8af18971 | 2096 | * dfs root */ |
1da177e4 | 2097 | |
50c2f753 | 2098 | /* BB check if this works for exactly length |
8af18971 | 2099 | * three strings */ |
1da177e4 LT |
2100 | if ((strchr(volume_info.UNC + 3, '\\') == NULL) |
2101 | && (strchr(volume_info.UNC + 3, '/') == | |
2102 | NULL)) { | |
737b758c | 2103 | rc = connect_to_dfs_path(xid, pSesInfo, |
8af18971 | 2104 | "", cifs_sb->local_nls, |
50c2f753 | 2105 | cifs_sb->mnt_cifs_flags & |
8af18971 | 2106 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
f99d49ad | 2107 | kfree(volume_info.UNC); |
1da177e4 LT |
2108 | FreeXid(xid); |
2109 | return -ENODEV; | |
2110 | } else { | |
8af18971 SF |
2111 | /* BB Do we need to wrap sesSem around |
2112 | * this TCon call and Unix SetFS as | |
2113 | * we do on SessSetup and reconnect? */ | |
50c2f753 | 2114 | rc = CIFSTCon(xid, pSesInfo, |
1da177e4 LT |
2115 | volume_info.UNC, |
2116 | tcon, cifs_sb->local_nls); | |
2117 | cFYI(1, ("CIFS Tcon rc = %d", rc)); | |
2118 | } | |
2119 | if (!rc) { | |
2120 | atomic_inc(&pSesInfo->inUse); | |
2121 | tcon->retry = volume_info.retry; | |
d3485d37 | 2122 | tcon->nocase = volume_info.nocase; |
1da177e4 LT |
2123 | } |
2124 | } | |
2125 | } | |
2126 | } | |
4523cc30 | 2127 | if (pSesInfo) { |
1da177e4 LT |
2128 | if (pSesInfo->capabilities & CAP_LARGE_FILES) { |
2129 | sb->s_maxbytes = (u64) 1 << 63; | |
2130 | } else | |
2131 | sb->s_maxbytes = (u64) 1 << 31; /* 2 GB */ | |
2132 | } | |
2133 | ||
8af18971 | 2134 | /* BB FIXME fix time_gran to be larger for LANMAN sessions */ |
1da177e4 LT |
2135 | sb->s_time_gran = 100; |
2136 | ||
2137 | /* on error free sesinfo and tcon struct if needed */ | |
2138 | if (rc) { | |
2139 | /* if session setup failed, use count is zero but | |
2140 | we still need to free cifsd thread */ | |
4523cc30 | 2141 | if (atomic_read(&srvTcp->socketUseCount) == 0) { |
1da177e4 LT |
2142 | spin_lock(&GlobalMid_Lock); |
2143 | srvTcp->tcpStatus = CifsExiting; | |
2144 | spin_unlock(&GlobalMid_Lock); | |
4523cc30 | 2145 | if (srvTcp->tsk) { |
28356a16 SF |
2146 | struct task_struct *tsk; |
2147 | /* If we could verify that kthread_stop would | |
2148 | always wake up processes blocked in | |
2149 | tcp in recv_mesg then we could remove the | |
2150 | send_sig call */ | |
50c2f753 | 2151 | force_sig(SIGKILL, srvTcp->tsk); |
28356a16 | 2152 | tsk = srvTcp->tsk; |
fb8c4b14 | 2153 | if (tsk) |
f7f7c31c | 2154 | kthread_stop(tsk); |
f191401f | 2155 | } |
1da177e4 LT |
2156 | } |
2157 | /* If find_unc succeeded then rc == 0 so we can not end */ | |
2158 | if (tcon) /* up accidently freeing someone elses tcon struct */ | |
2159 | tconInfoFree(tcon); | |
2160 | if (existingCifsSes == NULL) { | |
2161 | if (pSesInfo) { | |
50c2f753 | 2162 | if ((pSesInfo->server) && |
1da177e4 LT |
2163 | (pSesInfo->status == CifsGood)) { |
2164 | int temp_rc; | |
2165 | temp_rc = CIFSSMBLogoff(xid, pSesInfo); | |
2166 | /* if the socketUseCount is now zero */ | |
4523cc30 | 2167 | if ((temp_rc == -ESHUTDOWN) && |
50c2f753 | 2168 | (pSesInfo->server) && |
5d9c7206 | 2169 | (pSesInfo->server->tsk)) { |
28356a16 | 2170 | struct task_struct *tsk; |
5d9c7206 J |
2171 | force_sig(SIGKILL, |
2172 | pSesInfo->server->tsk); | |
28356a16 | 2173 | tsk = pSesInfo->server->tsk; |
f7f7c31c | 2174 | if (tsk) |
28356a16 | 2175 | kthread_stop(tsk); |
f191401f | 2176 | } |
1da177e4 LT |
2177 | } else |
2178 | cFYI(1, ("No session or bad tcon")); | |
2179 | sesInfoFree(pSesInfo); | |
2180 | /* pSesInfo = NULL; */ | |
2181 | } | |
2182 | } | |
2183 | } else { | |
2184 | atomic_inc(&tcon->useCount); | |
2185 | cifs_sb->tcon = tcon; | |
2186 | tcon->ses = pSesInfo; | |
2187 | ||
82940a46 | 2188 | /* do not care if following two calls succeed - informational */ |
737b758c SF |
2189 | CIFSSMBQFSDeviceInfo(xid, tcon); |
2190 | CIFSSMBQFSAttributeInfo(xid, tcon); | |
50c2f753 | 2191 | |
8af18971 SF |
2192 | /* tell server which Unix caps we support */ |
2193 | if (tcon->ses->capabilities & CAP_UNIX) | |
c18c842b SF |
2194 | /* reset of caps checks mount to see if unix extensions |
2195 | disabled for just this mount */ | |
8af18971 | 2196 | reset_cifs_unix_caps(xid, tcon, sb, &volume_info); |
c18c842b SF |
2197 | else |
2198 | tcon->unix_ext = 0; /* server does not support them */ | |
2199 | ||
2200 | if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) { | |
75865f8c SF |
2201 | cifs_sb->rsize = 1024 * 127; |
2202 | #ifdef CONFIG_CIFS_DEBUG2 | |
c18c842b | 2203 | cFYI(1, ("no very large read support, rsize now 127K")); |
75865f8c | 2204 | #endif |
75865f8c | 2205 | } |
3e84469d SF |
2206 | if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X)) |
2207 | cifs_sb->wsize = min(cifs_sb->wsize, | |
2208 | (tcon->ses->server->maxBuf - | |
2209 | MAX_CIFS_HDR_SIZE)); | |
0ae0efad | 2210 | if (!(tcon->ses->capabilities & CAP_LARGE_READ_X)) |
50c2f753 SF |
2211 | cifs_sb->rsize = min(cifs_sb->rsize, |
2212 | (tcon->ses->server->maxBuf - | |
2213 | MAX_CIFS_HDR_SIZE)); | |
1da177e4 LT |
2214 | } |
2215 | ||
2216 | /* volume_info.password is freed above when existing session found | |
2217 | (in which case it is not needed anymore) but when new sesion is created | |
2218 | the password ptr is put in the new session structure (in which case the | |
2219 | password will be freed at unmount time) */ | |
f99d49ad | 2220 | kfree(volume_info.UNC); |
2fe87f02 | 2221 | kfree(volume_info.prepath); |
1da177e4 LT |
2222 | FreeXid(xid); |
2223 | return rc; | |
2224 | } | |
2225 | ||
2226 | static int | |
2227 | CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, | |
7c7b25bc | 2228 | char session_key[CIFS_SESS_KEY_SIZE], |
1da177e4 LT |
2229 | const struct nls_table *nls_codepage) |
2230 | { | |
2231 | struct smb_hdr *smb_buffer; | |
2232 | struct smb_hdr *smb_buffer_response; | |
2233 | SESSION_SETUP_ANDX *pSMB; | |
2234 | SESSION_SETUP_ANDX *pSMBr; | |
2235 | char *bcc_ptr; | |
2236 | char *user; | |
2237 | char *domain; | |
2238 | int rc = 0; | |
2239 | int remaining_words = 0; | |
2240 | int bytes_returned = 0; | |
2241 | int len; | |
2242 | __u32 capabilities; | |
2243 | __u16 count; | |
2244 | ||
eeac8047 | 2245 | cFYI(1, ("In sesssetup")); |
4523cc30 | 2246 | if (ses == NULL) |
1da177e4 LT |
2247 | return -EINVAL; |
2248 | user = ses->userName; | |
2249 | domain = ses->domainName; | |
2250 | smb_buffer = cifs_buf_get(); | |
2251 | if (smb_buffer == NULL) { | |
2252 | return -ENOMEM; | |
2253 | } | |
2254 | smb_buffer_response = smb_buffer; | |
2255 | pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer; | |
2256 | ||
2257 | /* send SMBsessionSetup here */ | |
2258 | header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, | |
2259 | NULL /* no tCon exists yet */ , 13 /* wct */ ); | |
2260 | ||
1982c344 | 2261 | smb_buffer->Mid = GetNextMid(ses->server); |
1da177e4 LT |
2262 | pSMB->req_no_secext.AndXCommand = 0xFF; |
2263 | pSMB->req_no_secext.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); | |
2264 | pSMB->req_no_secext.MaxMpxCount = cpu_to_le16(ses->server->maxReq); | |
2265 | ||
50c2f753 SF |
2266 | if (ses->server->secMode & |
2267 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) | |
1da177e4 LT |
2268 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
2269 | ||
2270 | capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | | |
2271 | CAP_LARGE_WRITE_X | CAP_LARGE_READ_X; | |
2272 | if (ses->capabilities & CAP_UNICODE) { | |
2273 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; | |
2274 | capabilities |= CAP_UNICODE; | |
2275 | } | |
2276 | if (ses->capabilities & CAP_STATUS32) { | |
2277 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; | |
2278 | capabilities |= CAP_STATUS32; | |
2279 | } | |
2280 | if (ses->capabilities & CAP_DFS) { | |
2281 | smb_buffer->Flags2 |= SMBFLG2_DFS; | |
2282 | capabilities |= CAP_DFS; | |
2283 | } | |
2284 | pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); | |
2285 | ||
50c2f753 | 2286 | pSMB->req_no_secext.CaseInsensitivePasswordLength = |
7c7b25bc | 2287 | cpu_to_le16(CIFS_SESS_KEY_SIZE); |
1da177e4 LT |
2288 | |
2289 | pSMB->req_no_secext.CaseSensitivePasswordLength = | |
7c7b25bc | 2290 | cpu_to_le16(CIFS_SESS_KEY_SIZE); |
1da177e4 | 2291 | bcc_ptr = pByteArea(smb_buffer); |
7c7b25bc SF |
2292 | memcpy(bcc_ptr, (char *) session_key, CIFS_SESS_KEY_SIZE); |
2293 | bcc_ptr += CIFS_SESS_KEY_SIZE; | |
2294 | memcpy(bcc_ptr, (char *) session_key, CIFS_SESS_KEY_SIZE); | |
2295 | bcc_ptr += CIFS_SESS_KEY_SIZE; | |
1da177e4 LT |
2296 | |
2297 | if (ses->capabilities & CAP_UNICODE) { | |
2298 | if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode */ | |
2299 | *bcc_ptr = 0; | |
2300 | bcc_ptr++; | |
2301 | } | |
4523cc30 | 2302 | if (user == NULL) |
3979877e | 2303 | bytes_returned = 0; /* skip null user */ |
50c2f753 | 2304 | else |
1da177e4 | 2305 | bytes_returned = |
50c2f753 | 2306 | cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, |
1da177e4 LT |
2307 | nls_codepage); |
2308 | /* convert number of 16 bit words to bytes */ | |
2309 | bcc_ptr += 2 * bytes_returned; | |
2310 | bcc_ptr += 2; /* trailing null */ | |
2311 | if (domain == NULL) | |
2312 | bytes_returned = | |
e89dc920 | 2313 | cifs_strtoUCS((__le16 *) bcc_ptr, |
1da177e4 LT |
2314 | "CIFS_LINUX_DOM", 32, nls_codepage); |
2315 | else | |
2316 | bytes_returned = | |
e89dc920 | 2317 | cifs_strtoUCS((__le16 *) bcc_ptr, domain, 64, |
1da177e4 LT |
2318 | nls_codepage); |
2319 | bcc_ptr += 2 * bytes_returned; | |
2320 | bcc_ptr += 2; | |
2321 | bytes_returned = | |
e89dc920 | 2322 | cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", |
1da177e4 LT |
2323 | 32, nls_codepage); |
2324 | bcc_ptr += 2 * bytes_returned; | |
2325 | bytes_returned = | |
e9ff3990 | 2326 | cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, |
1da177e4 LT |
2327 | 32, nls_codepage); |
2328 | bcc_ptr += 2 * bytes_returned; | |
2329 | bcc_ptr += 2; | |
2330 | bytes_returned = | |
e89dc920 | 2331 | cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, |
1da177e4 LT |
2332 | 64, nls_codepage); |
2333 | bcc_ptr += 2 * bytes_returned; | |
2334 | bcc_ptr += 2; | |
2335 | } else { | |
50c2f753 | 2336 | if (user != NULL) { |
1da177e4 LT |
2337 | strncpy(bcc_ptr, user, 200); |
2338 | bcc_ptr += strnlen(user, 200); | |
2339 | } | |
2340 | *bcc_ptr = 0; | |
2341 | bcc_ptr++; | |
2342 | if (domain == NULL) { | |
2343 | strcpy(bcc_ptr, "CIFS_LINUX_DOM"); | |
2344 | bcc_ptr += strlen("CIFS_LINUX_DOM") + 1; | |
2345 | } else { | |
2346 | strncpy(bcc_ptr, domain, 64); | |
2347 | bcc_ptr += strnlen(domain, 64); | |
2348 | *bcc_ptr = 0; | |
2349 | bcc_ptr++; | |
2350 | } | |
2351 | strcpy(bcc_ptr, "Linux version "); | |
2352 | bcc_ptr += strlen("Linux version "); | |
e9ff3990 SH |
2353 | strcpy(bcc_ptr, utsname()->release); |
2354 | bcc_ptr += strlen(utsname()->release) + 1; | |
1da177e4 LT |
2355 | strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); |
2356 | bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; | |
2357 | } | |
2358 | count = (long) bcc_ptr - (long) pByteArea(smb_buffer); | |
2359 | smb_buffer->smb_buf_length += count; | |
2360 | pSMB->req_no_secext.ByteCount = cpu_to_le16(count); | |
2361 | ||
2362 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, | |
2363 | &bytes_returned, 1); | |
2364 | if (rc) { | |
2365 | /* rc = map_smb_to_linux_error(smb_buffer_response); now done in SendReceive */ | |
2366 | } else if ((smb_buffer_response->WordCount == 3) | |
2367 | || (smb_buffer_response->WordCount == 4)) { | |
2368 | __u16 action = le16_to_cpu(pSMBr->resp.Action); | |
2369 | __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); | |
2370 | if (action & GUEST_LOGIN) | |
50c2f753 SF |
2371 | cFYI(1, (" Guest login")); /* BB mark SesInfo struct? */ |
2372 | ses->Suid = smb_buffer_response->Uid; /* UID left in wire format | |
2373 | (little endian) */ | |
1da177e4 | 2374 | cFYI(1, ("UID = %d ", ses->Suid)); |
50c2f753 SF |
2375 | /* response can have either 3 or 4 word count - Samba sends 3 */ |
2376 | bcc_ptr = pByteArea(smb_buffer_response); | |
1da177e4 LT |
2377 | if ((pSMBr->resp.hdr.WordCount == 3) |
2378 | || ((pSMBr->resp.hdr.WordCount == 4) | |
2379 | && (blob_len < pSMBr->resp.ByteCount))) { | |
2380 | if (pSMBr->resp.hdr.WordCount == 4) | |
2381 | bcc_ptr += blob_len; | |
2382 | ||
2383 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { | |
2384 | if ((long) (bcc_ptr) % 2) { | |
2385 | remaining_words = | |
50c2f753 SF |
2386 | (BCC(smb_buffer_response) - 1) / 2; |
2387 | /* Unicode strings must be word | |
2388 | aligned */ | |
2389 | bcc_ptr++; | |
1da177e4 LT |
2390 | } else { |
2391 | remaining_words = | |
2392 | BCC(smb_buffer_response) / 2; | |
2393 | } | |
2394 | len = | |
2395 | UniStrnlen((wchar_t *) bcc_ptr, | |
2396 | remaining_words - 1); | |
2397 | /* We look for obvious messed up bcc or strings in response so we do not go off | |
2398 | the end since (at least) WIN2K and Windows XP have a major bug in not null | |
2399 | terminating last Unicode string in response */ | |
fb8c4b14 | 2400 | if (ses->serverOS) |
a424f8bf | 2401 | kfree(ses->serverOS); |
50c2f753 SF |
2402 | ses->serverOS = kzalloc(2 * (len + 1), |
2403 | GFP_KERNEL); | |
fb8c4b14 | 2404 | if (ses->serverOS == NULL) |
433dc24f | 2405 | goto sesssetup_nomem; |
1da177e4 | 2406 | cifs_strfromUCS_le(ses->serverOS, |
50c2f753 SF |
2407 | (__le16 *)bcc_ptr, |
2408 | len, nls_codepage); | |
1da177e4 LT |
2409 | bcc_ptr += 2 * (len + 1); |
2410 | remaining_words -= len + 1; | |
2411 | ses->serverOS[2 * len] = 0; | |
2412 | ses->serverOS[1 + (2 * len)] = 0; | |
2413 | if (remaining_words > 0) { | |
2414 | len = UniStrnlen((wchar_t *)bcc_ptr, | |
2415 | remaining_words-1); | |
cd49b492 | 2416 | kfree(ses->serverNOS); |
50c2f753 SF |
2417 | ses->serverNOS = kzalloc(2 * (len + 1), |
2418 | GFP_KERNEL); | |
fb8c4b14 | 2419 | if (ses->serverNOS == NULL) |
433dc24f | 2420 | goto sesssetup_nomem; |
1da177e4 | 2421 | cifs_strfromUCS_le(ses->serverNOS, |
50c2f753 SF |
2422 | (__le16 *)bcc_ptr, |
2423 | len, nls_codepage); | |
1da177e4 LT |
2424 | bcc_ptr += 2 * (len + 1); |
2425 | ses->serverNOS[2 * len] = 0; | |
2426 | ses->serverNOS[1 + (2 * len)] = 0; | |
fb8c4b14 | 2427 | if (strncmp(ses->serverNOS, |
50c2f753 | 2428 | "NT LAN Manager 4", 16) == 0) { |
467a8f8d | 2429 | cFYI(1, ("NT4 server")); |
1da177e4 LT |
2430 | ses->flags |= CIFS_SES_NT4; |
2431 | } | |
2432 | remaining_words -= len + 1; | |
2433 | if (remaining_words > 0) { | |
433dc24f | 2434 | len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); |
50c2f753 SF |
2435 | /* last string is not always null terminated |
2436 | (for e.g. for Windows XP & 2000) */ | |
fb8c4b14 | 2437 | if (ses->serverDomain) |
a424f8bf | 2438 | kfree(ses->serverDomain); |
1da177e4 | 2439 | ses->serverDomain = |
50c2f753 SF |
2440 | kzalloc(2*(len+1), |
2441 | GFP_KERNEL); | |
fb8c4b14 | 2442 | if (ses->serverDomain == NULL) |
433dc24f | 2443 | goto sesssetup_nomem; |
1da177e4 | 2444 | cifs_strfromUCS_le(ses->serverDomain, |
50c2f753 SF |
2445 | (__le16 *)bcc_ptr, |
2446 | len, nls_codepage); | |
1da177e4 LT |
2447 | bcc_ptr += 2 * (len + 1); |
2448 | ses->serverDomain[2*len] = 0; | |
2449 | ses->serverDomain[1+(2*len)] = 0; | |
50c2f753 SF |
2450 | } else { /* else no more room so create |
2451 | dummy domain string */ | |
fb8c4b14 | 2452 | if (ses->serverDomain) |
a424f8bf | 2453 | kfree(ses->serverDomain); |
50c2f753 | 2454 | ses->serverDomain = |
e915fc49 | 2455 | kzalloc(2, GFP_KERNEL); |
a424f8bf | 2456 | } |
50c2f753 SF |
2457 | } else { /* no room so create dummy domain |
2458 | and NOS string */ | |
2459 | ||
433dc24f SF |
2460 | /* if these kcallocs fail not much we |
2461 | can do, but better to not fail the | |
2462 | sesssetup itself */ | |
cd49b492 | 2463 | kfree(ses->serverDomain); |
1da177e4 | 2464 | ses->serverDomain = |
e915fc49 | 2465 | kzalloc(2, GFP_KERNEL); |
cd49b492 | 2466 | kfree(ses->serverNOS); |
1da177e4 | 2467 | ses->serverNOS = |
e915fc49 | 2468 | kzalloc(2, GFP_KERNEL); |
1da177e4 LT |
2469 | } |
2470 | } else { /* ASCII */ | |
2471 | len = strnlen(bcc_ptr, 1024); | |
2472 | if (((long) bcc_ptr + len) - (long) | |
2473 | pByteArea(smb_buffer_response) | |
2474 | <= BCC(smb_buffer_response)) { | |
cd49b492 | 2475 | kfree(ses->serverOS); |
50c2f753 SF |
2476 | ses->serverOS = kzalloc(len + 1, |
2477 | GFP_KERNEL); | |
fb8c4b14 | 2478 | if (ses->serverOS == NULL) |
433dc24f | 2479 | goto sesssetup_nomem; |
50c2f753 | 2480 | strncpy(ses->serverOS, bcc_ptr, len); |
1da177e4 LT |
2481 | |
2482 | bcc_ptr += len; | |
50c2f753 SF |
2483 | /* null terminate the string */ |
2484 | bcc_ptr[0] = 0; | |
1da177e4 LT |
2485 | bcc_ptr++; |
2486 | ||
2487 | len = strnlen(bcc_ptr, 1024); | |
cd49b492 | 2488 | kfree(ses->serverNOS); |
50c2f753 SF |
2489 | ses->serverNOS = kzalloc(len + 1, |
2490 | GFP_KERNEL); | |
fb8c4b14 | 2491 | if (ses->serverNOS == NULL) |
433dc24f | 2492 | goto sesssetup_nomem; |
1da177e4 LT |
2493 | strncpy(ses->serverNOS, bcc_ptr, len); |
2494 | bcc_ptr += len; | |
2495 | bcc_ptr[0] = 0; | |
2496 | bcc_ptr++; | |
2497 | ||
2498 | len = strnlen(bcc_ptr, 1024); | |
fb8c4b14 | 2499 | if (ses->serverDomain) |
a424f8bf | 2500 | kfree(ses->serverDomain); |
50c2f753 SF |
2501 | ses->serverDomain = kzalloc(len + 1, |
2502 | GFP_KERNEL); | |
fb8c4b14 | 2503 | if (ses->serverDomain == NULL) |
433dc24f | 2504 | goto sesssetup_nomem; |
50c2f753 SF |
2505 | strncpy(ses->serverDomain, bcc_ptr, |
2506 | len); | |
1da177e4 LT |
2507 | bcc_ptr += len; |
2508 | bcc_ptr[0] = 0; | |
2509 | bcc_ptr++; | |
2510 | } else | |
2511 | cFYI(1, | |
50c2f753 SF |
2512 | ("Variable field of length %d " |
2513 | "extends beyond end of smb ", | |
1da177e4 LT |
2514 | len)); |
2515 | } | |
2516 | } else { | |
2517 | cERROR(1, | |
50c2f753 SF |
2518 | (" Security Blob Length extends beyond " |
2519 | "end of SMB")); | |
1da177e4 LT |
2520 | } |
2521 | } else { | |
2522 | cERROR(1, | |
2523 | (" Invalid Word count %d: ", | |
2524 | smb_buffer_response->WordCount)); | |
2525 | rc = -EIO; | |
2526 | } | |
433dc24f SF |
2527 | sesssetup_nomem: /* do not return an error on nomem for the info strings, |
2528 | since that could make reconnection harder, and | |
2529 | reconnection might be needed to free memory */ | |
1da177e4 LT |
2530 | if (smb_buffer) |
2531 | cifs_buf_release(smb_buffer); | |
2532 | ||
2533 | return rc; | |
2534 | } | |
2535 | ||
1da177e4 LT |
2536 | static int |
2537 | CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, | |
50c2f753 | 2538 | struct cifsSesInfo *ses, int *pNTLMv2_flag, |
1da177e4 LT |
2539 | const struct nls_table *nls_codepage) |
2540 | { | |
2541 | struct smb_hdr *smb_buffer; | |
2542 | struct smb_hdr *smb_buffer_response; | |
2543 | SESSION_SETUP_ANDX *pSMB; | |
2544 | SESSION_SETUP_ANDX *pSMBr; | |
2545 | char *bcc_ptr; | |
2546 | char *domain; | |
2547 | int rc = 0; | |
2548 | int remaining_words = 0; | |
2549 | int bytes_returned = 0; | |
2550 | int len; | |
2551 | int SecurityBlobLength = sizeof (NEGOTIATE_MESSAGE); | |
2552 | PNEGOTIATE_MESSAGE SecurityBlob; | |
2553 | PCHALLENGE_MESSAGE SecurityBlob2; | |
2554 | __u32 negotiate_flags, capabilities; | |
2555 | __u16 count; | |
2556 | ||
12b3b8ff | 2557 | cFYI(1, ("In NTLMSSP sesssetup (negotiate)")); |
fb8c4b14 | 2558 | if (ses == NULL) |
1da177e4 LT |
2559 | return -EINVAL; |
2560 | domain = ses->domainName; | |
2561 | *pNTLMv2_flag = FALSE; | |
2562 | smb_buffer = cifs_buf_get(); | |
2563 | if (smb_buffer == NULL) { | |
2564 | return -ENOMEM; | |
2565 | } | |
2566 | smb_buffer_response = smb_buffer; | |
2567 | pSMB = (SESSION_SETUP_ANDX *) smb_buffer; | |
2568 | pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response; | |
2569 | ||
2570 | /* send SMBsessionSetup here */ | |
2571 | header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, | |
2572 | NULL /* no tCon exists yet */ , 12 /* wct */ ); | |
1982c344 SF |
2573 | |
2574 | smb_buffer->Mid = GetNextMid(ses->server); | |
1da177e4 LT |
2575 | pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; |
2576 | pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT); | |
2577 | ||
2578 | pSMB->req.AndXCommand = 0xFF; | |
2579 | pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); | |
2580 | pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); | |
2581 | ||
fb8c4b14 | 2582 | if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
1da177e4 LT |
2583 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
2584 | ||
2585 | capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | | |
2586 | CAP_EXTENDED_SECURITY; | |
2587 | if (ses->capabilities & CAP_UNICODE) { | |
2588 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; | |
2589 | capabilities |= CAP_UNICODE; | |
2590 | } | |
2591 | if (ses->capabilities & CAP_STATUS32) { | |
2592 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; | |
2593 | capabilities |= CAP_STATUS32; | |
2594 | } | |
2595 | if (ses->capabilities & CAP_DFS) { | |
2596 | smb_buffer->Flags2 |= SMBFLG2_DFS; | |
2597 | capabilities |= CAP_DFS; | |
2598 | } | |
2599 | pSMB->req.Capabilities = cpu_to_le32(capabilities); | |
2600 | ||
2601 | bcc_ptr = (char *) &pSMB->req.SecurityBlob; | |
2602 | SecurityBlob = (PNEGOTIATE_MESSAGE) bcc_ptr; | |
2603 | strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8); | |
2604 | SecurityBlob->MessageType = NtLmNegotiate; | |
2605 | negotiate_flags = | |
2606 | NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_NEGOTIATE_OEM | | |
12b3b8ff SF |
2607 | NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | |
2608 | NTLMSSP_NEGOTIATE_56 | | |
1da177e4 | 2609 | /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128; |
fb8c4b14 | 2610 | if (sign_CIFS_PDUs) |
1da177e4 | 2611 | negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN; |
fb8c4b14 | 2612 | /* if (ntlmv2_support) |
3979877e | 2613 | negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;*/ |
1da177e4 LT |
2614 | /* setup pointers to domain name and workstation name */ |
2615 | bcc_ptr += SecurityBlobLength; | |
2616 | ||
2617 | SecurityBlob->WorkstationName.Buffer = 0; | |
2618 | SecurityBlob->WorkstationName.Length = 0; | |
2619 | SecurityBlob->WorkstationName.MaximumLength = 0; | |
2620 | ||
12b3b8ff SF |
2621 | /* Domain not sent on first Sesssetup in NTLMSSP, instead it is sent |
2622 | along with username on auth request (ie the response to challenge) */ | |
2623 | SecurityBlob->DomainName.Buffer = 0; | |
2624 | SecurityBlob->DomainName.Length = 0; | |
2625 | SecurityBlob->DomainName.MaximumLength = 0; | |
1da177e4 LT |
2626 | if (ses->capabilities & CAP_UNICODE) { |
2627 | if ((long) bcc_ptr % 2) { | |
2628 | *bcc_ptr = 0; | |
2629 | bcc_ptr++; | |
2630 | } | |
2631 | ||
2632 | bytes_returned = | |
e89dc920 | 2633 | cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", |
1da177e4 LT |
2634 | 32, nls_codepage); |
2635 | bcc_ptr += 2 * bytes_returned; | |
2636 | bytes_returned = | |
e9ff3990 | 2637 | cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32, |
1da177e4 LT |
2638 | nls_codepage); |
2639 | bcc_ptr += 2 * bytes_returned; | |
2640 | bcc_ptr += 2; /* null terminate Linux version */ | |
2641 | bytes_returned = | |
e89dc920 | 2642 | cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, |
1da177e4 LT |
2643 | 64, nls_codepage); |
2644 | bcc_ptr += 2 * bytes_returned; | |
2645 | *(bcc_ptr + 1) = 0; | |
2646 | *(bcc_ptr + 2) = 0; | |
2647 | bcc_ptr += 2; /* null terminate network opsys string */ | |
2648 | *(bcc_ptr + 1) = 0; | |
2649 | *(bcc_ptr + 2) = 0; | |
2650 | bcc_ptr += 2; /* null domain */ | |
2651 | } else { /* ASCII */ | |
2652 | strcpy(bcc_ptr, "Linux version "); | |
2653 | bcc_ptr += strlen("Linux version "); | |
e9ff3990 SH |
2654 | strcpy(bcc_ptr, utsname()->release); |
2655 | bcc_ptr += strlen(utsname()->release) + 1; | |
1da177e4 LT |
2656 | strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); |
2657 | bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; | |
2658 | bcc_ptr++; /* empty domain field */ | |
2659 | *bcc_ptr = 0; | |
2660 | } | |
2661 | SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags); | |
2662 | pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength); | |
2663 | count = (long) bcc_ptr - (long) pByteArea(smb_buffer); | |
2664 | smb_buffer->smb_buf_length += count; | |
2665 | pSMB->req.ByteCount = cpu_to_le16(count); | |
2666 | ||
2667 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, | |
2668 | &bytes_returned, 1); | |
2669 | ||
2670 | if (smb_buffer_response->Status.CifsError == | |
2671 | cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED)) | |
2672 | rc = 0; | |
2673 | ||
2674 | if (rc) { | |
2675 | /* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */ | |
2676 | } else if ((smb_buffer_response->WordCount == 3) | |
2677 | || (smb_buffer_response->WordCount == 4)) { | |
2678 | __u16 action = le16_to_cpu(pSMBr->resp.Action); | |
2679 | __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); | |
2680 | ||
2681 | if (action & GUEST_LOGIN) | |
50c2f753 SF |
2682 | cFYI(1, (" Guest login")); |
2683 | /* Do we want to set anything in SesInfo struct when guest login? */ | |
1da177e4 | 2684 | |
50c2f753 SF |
2685 | bcc_ptr = pByteArea(smb_buffer_response); |
2686 | /* response can have either 3 or 4 word count - Samba sends 3 */ | |
1da177e4 LT |
2687 | |
2688 | SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr; | |
2689 | if (SecurityBlob2->MessageType != NtLmChallenge) { | |
2690 | cFYI(1, | |
2691 | ("Unexpected NTLMSSP message type received %d", | |
2692 | SecurityBlob2->MessageType)); | |
2693 | } else if (ses) { | |
50c2f753 | 2694 | ses->Suid = smb_buffer_response->Uid; /* UID left in le format */ |
12b3b8ff | 2695 | cFYI(1, ("UID = %d", ses->Suid)); |
1da177e4 LT |
2696 | if ((pSMBr->resp.hdr.WordCount == 3) |
2697 | || ((pSMBr->resp.hdr.WordCount == 4) | |
2698 | && (blob_len < | |
2699 | pSMBr->resp.ByteCount))) { | |
2700 | ||
2701 | if (pSMBr->resp.hdr.WordCount == 4) { | |
2702 | bcc_ptr += blob_len; | |
12b3b8ff | 2703 | cFYI(1, ("Security Blob Length %d", |
1da177e4 LT |
2704 | blob_len)); |
2705 | } | |
2706 | ||
12b3b8ff | 2707 | cFYI(1, ("NTLMSSP Challenge rcvd")); |
1da177e4 LT |
2708 | |
2709 | memcpy(ses->server->cryptKey, | |
2710 | SecurityBlob2->Challenge, | |
2711 | CIFS_CRYPTO_KEY_SIZE); | |
50c2f753 | 2712 | if (SecurityBlob2->NegotiateFlags & |
12b3b8ff | 2713 | cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2)) |
1da177e4 LT |
2714 | *pNTLMv2_flag = TRUE; |
2715 | ||
50c2f753 SF |
2716 | if ((SecurityBlob2->NegotiateFlags & |
2717 | cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) | |
1da177e4 | 2718 | || (sign_CIFS_PDUs > 1)) |
50c2f753 SF |
2719 | ses->server->secMode |= |
2720 | SECMODE_SIGN_REQUIRED; | |
2721 | if ((SecurityBlob2->NegotiateFlags & | |
1da177e4 | 2722 | cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs)) |
50c2f753 | 2723 | ses->server->secMode |= |
1da177e4 LT |
2724 | SECMODE_SIGN_ENABLED; |
2725 | ||
2726 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { | |
2727 | if ((long) (bcc_ptr) % 2) { | |
2728 | remaining_words = | |
2729 | (BCC(smb_buffer_response) | |
2730 | - 1) / 2; | |
50c2f753 SF |
2731 | /* Must word align unicode strings */ |
2732 | bcc_ptr++; | |
1da177e4 LT |
2733 | } else { |
2734 | remaining_words = | |
2735 | BCC | |
2736 | (smb_buffer_response) / 2; | |
2737 | } | |
2738 | len = | |
2739 | UniStrnlen((wchar_t *) bcc_ptr, | |
2740 | remaining_words - 1); | |
2741 | /* We look for obvious messed up bcc or strings in response so we do not go off | |
2742 | the end since (at least) WIN2K and Windows XP have a major bug in not null | |
2743 | terminating last Unicode string in response */ | |
fb8c4b14 | 2744 | if (ses->serverOS) |
a424f8bf | 2745 | kfree(ses->serverOS); |
1da177e4 | 2746 | ses->serverOS = |
e915fc49 | 2747 | kzalloc(2 * (len + 1), GFP_KERNEL); |
1da177e4 | 2748 | cifs_strfromUCS_le(ses->serverOS, |
e89dc920 | 2749 | (__le16 *) |
1da177e4 LT |
2750 | bcc_ptr, len, |
2751 | nls_codepage); | |
2752 | bcc_ptr += 2 * (len + 1); | |
2753 | remaining_words -= len + 1; | |
2754 | ses->serverOS[2 * len] = 0; | |
2755 | ses->serverOS[1 + (2 * len)] = 0; | |
2756 | if (remaining_words > 0) { | |
2757 | len = UniStrnlen((wchar_t *) | |
2758 | bcc_ptr, | |
2759 | remaining_words | |
2760 | - 1); | |
cd49b492 | 2761 | kfree(ses->serverNOS); |
1da177e4 | 2762 | ses->serverNOS = |
e915fc49 | 2763 | kzalloc(2 * (len + 1), |
1da177e4 LT |
2764 | GFP_KERNEL); |
2765 | cifs_strfromUCS_le(ses-> | |
2766 | serverNOS, | |
e89dc920 | 2767 | (__le16 *) |
1da177e4 LT |
2768 | bcc_ptr, |
2769 | len, | |
2770 | nls_codepage); | |
2771 | bcc_ptr += 2 * (len + 1); | |
2772 | ses->serverNOS[2 * len] = 0; | |
2773 | ses->serverNOS[1 + | |
2774 | (2 * len)] = 0; | |
2775 | remaining_words -= len + 1; | |
2776 | if (remaining_words > 0) { | |
50c2f753 SF |
2777 | len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); |
2778 | /* last string not always null terminated | |
2779 | (for e.g. for Windows XP & 2000) */ | |
cd49b492 | 2780 | kfree(ses->serverDomain); |
1da177e4 | 2781 | ses->serverDomain = |
e915fc49 | 2782 | kzalloc(2 * |
1da177e4 LT |
2783 | (len + |
2784 | 1), | |
2785 | GFP_KERNEL); | |
2786 | cifs_strfromUCS_le | |
e89dc920 SF |
2787 | (ses->serverDomain, |
2788 | (__le16 *)bcc_ptr, | |
2789 | len, nls_codepage); | |
1da177e4 LT |
2790 | bcc_ptr += |
2791 | 2 * (len + 1); | |
e89dc920 | 2792 | ses->serverDomain[2*len] |
1da177e4 | 2793 | = 0; |
e89dc920 SF |
2794 | ses->serverDomain |
2795 | [1 + (2 * len)] | |
1da177e4 LT |
2796 | = 0; |
2797 | } /* else no more room so create dummy domain string */ | |
a424f8bf | 2798 | else { |
cd49b492 | 2799 | kfree(ses->serverDomain); |
1da177e4 | 2800 | ses->serverDomain = |
e915fc49 | 2801 | kzalloc(2, |
1da177e4 | 2802 | GFP_KERNEL); |
a424f8bf | 2803 | } |
1da177e4 | 2804 | } else { /* no room so create dummy domain and NOS string */ |
cd49b492 | 2805 | kfree(ses->serverDomain); |
1da177e4 | 2806 | ses->serverDomain = |
e915fc49 | 2807 | kzalloc(2, GFP_KERNEL); |
cd49b492 | 2808 | kfree(ses->serverNOS); |
1da177e4 | 2809 | ses->serverNOS = |
e915fc49 | 2810 | kzalloc(2, GFP_KERNEL); |
1da177e4 LT |
2811 | } |
2812 | } else { /* ASCII */ | |
2813 | len = strnlen(bcc_ptr, 1024); | |
2814 | if (((long) bcc_ptr + len) - (long) | |
2815 | pByteArea(smb_buffer_response) | |
2816 | <= BCC(smb_buffer_response)) { | |
fb8c4b14 | 2817 | if (ses->serverOS) |
a424f8bf | 2818 | kfree(ses->serverOS); |
1da177e4 | 2819 | ses->serverOS = |
e915fc49 | 2820 | kzalloc(len + 1, |
1da177e4 LT |
2821 | GFP_KERNEL); |
2822 | strncpy(ses->serverOS, | |
2823 | bcc_ptr, len); | |
2824 | ||
2825 | bcc_ptr += len; | |
2826 | bcc_ptr[0] = 0; /* null terminate string */ | |
2827 | bcc_ptr++; | |
2828 | ||
2829 | len = strnlen(bcc_ptr, 1024); | |
cd49b492 | 2830 | kfree(ses->serverNOS); |
1da177e4 | 2831 | ses->serverNOS = |
e915fc49 | 2832 | kzalloc(len + 1, |
1da177e4 LT |
2833 | GFP_KERNEL); |
2834 | strncpy(ses->serverNOS, bcc_ptr, len); | |
2835 | bcc_ptr += len; | |
2836 | bcc_ptr[0] = 0; | |
2837 | bcc_ptr++; | |
2838 | ||
2839 | len = strnlen(bcc_ptr, 1024); | |
cd49b492 | 2840 | kfree(ses->serverDomain); |
1da177e4 | 2841 | ses->serverDomain = |
e915fc49 | 2842 | kzalloc(len + 1, |
1da177e4 | 2843 | GFP_KERNEL); |
50c2f753 SF |
2844 | strncpy(ses->serverDomain, |
2845 | bcc_ptr, len); | |
1da177e4 LT |
2846 | bcc_ptr += len; |
2847 | bcc_ptr[0] = 0; | |
2848 | bcc_ptr++; | |
2849 | } else | |
2850 | cFYI(1, | |
63135e08 SF |
2851 | ("field of length %d " |
2852 | "extends beyond end of smb", | |
1da177e4 LT |
2853 | len)); |
2854 | } | |
2855 | } else { | |
50c2f753 SF |
2856 | cERROR(1, ("Security Blob Length extends beyond" |
2857 | " end of SMB")); | |
1da177e4 LT |
2858 | } |
2859 | } else { | |
2860 | cERROR(1, ("No session structure passed in.")); | |
2861 | } | |
2862 | } else { | |
2863 | cERROR(1, | |
5815449d | 2864 | (" Invalid Word count %d:", |
1da177e4 LT |
2865 | smb_buffer_response->WordCount)); |
2866 | rc = -EIO; | |
2867 | } | |
2868 | ||
2869 | if (smb_buffer) | |
2870 | cifs_buf_release(smb_buffer); | |
2871 | ||
2872 | return rc; | |
2873 | } | |
2874 | static int | |
2875 | CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, | |
2876 | char *ntlm_session_key, int ntlmv2_flag, | |
2877 | const struct nls_table *nls_codepage) | |
2878 | { | |
2879 | struct smb_hdr *smb_buffer; | |
2880 | struct smb_hdr *smb_buffer_response; | |
2881 | SESSION_SETUP_ANDX *pSMB; | |
2882 | SESSION_SETUP_ANDX *pSMBr; | |
2883 | char *bcc_ptr; | |
2884 | char *user; | |
2885 | char *domain; | |
2886 | int rc = 0; | |
2887 | int remaining_words = 0; | |
2888 | int bytes_returned = 0; | |
2889 | int len; | |
2890 | int SecurityBlobLength = sizeof (AUTHENTICATE_MESSAGE); | |
2891 | PAUTHENTICATE_MESSAGE SecurityBlob; | |
2892 | __u32 negotiate_flags, capabilities; | |
2893 | __u16 count; | |
2894 | ||
2895 | cFYI(1, ("In NTLMSSPSessSetup (Authenticate)")); | |
fb8c4b14 | 2896 | if (ses == NULL) |
1da177e4 LT |
2897 | return -EINVAL; |
2898 | user = ses->userName; | |
2899 | domain = ses->domainName; | |
2900 | smb_buffer = cifs_buf_get(); | |
2901 | if (smb_buffer == NULL) { | |
2902 | return -ENOMEM; | |
2903 | } | |
2904 | smb_buffer_response = smb_buffer; | |
2905 | pSMB = (SESSION_SETUP_ANDX *) smb_buffer; | |
2906 | pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response; | |
2907 | ||
2908 | /* send SMBsessionSetup here */ | |
2909 | header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, | |
2910 | NULL /* no tCon exists yet */ , 12 /* wct */ ); | |
1982c344 SF |
2911 | |
2912 | smb_buffer->Mid = GetNextMid(ses->server); | |
1da177e4 LT |
2913 | pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT); |
2914 | pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
2915 | pSMB->req.AndXCommand = 0xFF; | |
2916 | pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); | |
2917 | pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); | |
2918 | ||
2919 | pSMB->req.hdr.Uid = ses->Suid; | |
2920 | ||
fb8c4b14 | 2921 | if (ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
1da177e4 LT |
2922 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
2923 | ||
2924 | capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | | |
2925 | CAP_EXTENDED_SECURITY; | |
2926 | if (ses->capabilities & CAP_UNICODE) { | |
2927 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; | |
2928 | capabilities |= CAP_UNICODE; | |
2929 | } | |
2930 | if (ses->capabilities & CAP_STATUS32) { | |
2931 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; | |
2932 | capabilities |= CAP_STATUS32; | |
2933 | } | |
2934 | if (ses->capabilities & CAP_DFS) { | |
2935 | smb_buffer->Flags2 |= SMBFLG2_DFS; | |
2936 | capabilities |= CAP_DFS; | |
2937 | } | |
2938 | pSMB->req.Capabilities = cpu_to_le32(capabilities); | |
2939 | ||
2940 | bcc_ptr = (char *) &pSMB->req.SecurityBlob; | |
2941 | SecurityBlob = (PAUTHENTICATE_MESSAGE) bcc_ptr; | |
2942 | strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8); | |
2943 | SecurityBlob->MessageType = NtLmAuthenticate; | |
2944 | bcc_ptr += SecurityBlobLength; | |
50c2f753 | 2945 | negotiate_flags = |
1da177e4 LT |
2946 | NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET | |
2947 | NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO | | |
2948 | 0x80000000 | NTLMSSP_NEGOTIATE_128; | |
fb8c4b14 | 2949 | if (sign_CIFS_PDUs) |
1da177e4 | 2950 | negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN; |
fb8c4b14 | 2951 | if (ntlmv2_flag) |
1da177e4 LT |
2952 | negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2; |
2953 | ||
2954 | /* setup pointers to domain name and workstation name */ | |
2955 | ||
2956 | SecurityBlob->WorkstationName.Buffer = 0; | |
2957 | SecurityBlob->WorkstationName.Length = 0; | |
2958 | SecurityBlob->WorkstationName.MaximumLength = 0; | |
2959 | SecurityBlob->SessionKey.Length = 0; | |
2960 | SecurityBlob->SessionKey.MaximumLength = 0; | |
2961 | SecurityBlob->SessionKey.Buffer = 0; | |
2962 | ||
2963 | SecurityBlob->LmChallengeResponse.Length = 0; | |
2964 | SecurityBlob->LmChallengeResponse.MaximumLength = 0; | |
2965 | SecurityBlob->LmChallengeResponse.Buffer = 0; | |
2966 | ||
2967 | SecurityBlob->NtChallengeResponse.Length = | |
7c7b25bc | 2968 | cpu_to_le16(CIFS_SESS_KEY_SIZE); |
1da177e4 | 2969 | SecurityBlob->NtChallengeResponse.MaximumLength = |
7c7b25bc SF |
2970 | cpu_to_le16(CIFS_SESS_KEY_SIZE); |
2971 | memcpy(bcc_ptr, ntlm_session_key, CIFS_SESS_KEY_SIZE); | |
1da177e4 LT |
2972 | SecurityBlob->NtChallengeResponse.Buffer = |
2973 | cpu_to_le32(SecurityBlobLength); | |
7c7b25bc SF |
2974 | SecurityBlobLength += CIFS_SESS_KEY_SIZE; |
2975 | bcc_ptr += CIFS_SESS_KEY_SIZE; | |
1da177e4 LT |
2976 | |
2977 | if (ses->capabilities & CAP_UNICODE) { | |
2978 | if (domain == NULL) { | |
2979 | SecurityBlob->DomainName.Buffer = 0; | |
2980 | SecurityBlob->DomainName.Length = 0; | |
2981 | SecurityBlob->DomainName.MaximumLength = 0; | |
2982 | } else { | |
77159b4d | 2983 | __u16 ln = cifs_strtoUCS((__le16 *) bcc_ptr, domain, 64, |
1da177e4 | 2984 | nls_codepage); |
77159b4d | 2985 | ln *= 2; |
1da177e4 | 2986 | SecurityBlob->DomainName.MaximumLength = |
77159b4d | 2987 | cpu_to_le16(ln); |
1da177e4 LT |
2988 | SecurityBlob->DomainName.Buffer = |
2989 | cpu_to_le32(SecurityBlobLength); | |
77159b4d SF |
2990 | bcc_ptr += ln; |
2991 | SecurityBlobLength += ln; | |
2992 | SecurityBlob->DomainName.Length = cpu_to_le16(ln); | |
1da177e4 LT |
2993 | } |
2994 | if (user == NULL) { | |
2995 | SecurityBlob->UserName.Buffer = 0; | |
2996 | SecurityBlob->UserName.Length = 0; | |
2997 | SecurityBlob->UserName.MaximumLength = 0; | |
2998 | } else { | |
77159b4d | 2999 | __u16 ln = cifs_strtoUCS((__le16 *) bcc_ptr, user, 64, |
1da177e4 | 3000 | nls_codepage); |
77159b4d | 3001 | ln *= 2; |
1da177e4 | 3002 | SecurityBlob->UserName.MaximumLength = |
77159b4d | 3003 | cpu_to_le16(ln); |
1da177e4 LT |
3004 | SecurityBlob->UserName.Buffer = |
3005 | cpu_to_le32(SecurityBlobLength); | |
77159b4d SF |
3006 | bcc_ptr += ln; |
3007 | SecurityBlobLength += ln; | |
3008 | SecurityBlob->UserName.Length = cpu_to_le16(ln); | |
1da177e4 LT |
3009 | } |
3010 | ||
63135e08 SF |
3011 | /* SecurityBlob->WorkstationName.Length = |
3012 | cifs_strtoUCS((__le16 *) bcc_ptr, "AMACHINE",64, nls_codepage); | |
1da177e4 | 3013 | SecurityBlob->WorkstationName.Length *= 2; |
63135e08 SF |
3014 | SecurityBlob->WorkstationName.MaximumLength = |
3015 | cpu_to_le16(SecurityBlob->WorkstationName.Length); | |
3016 | SecurityBlob->WorkstationName.Buffer = | |
3017 | cpu_to_le32(SecurityBlobLength); | |
1da177e4 LT |
3018 | bcc_ptr += SecurityBlob->WorkstationName.Length; |
3019 | SecurityBlobLength += SecurityBlob->WorkstationName.Length; | |
63135e08 SF |
3020 | SecurityBlob->WorkstationName.Length = |
3021 | cpu_to_le16(SecurityBlob->WorkstationName.Length); */ | |
1da177e4 LT |
3022 | |
3023 | if ((long) bcc_ptr % 2) { | |
3024 | *bcc_ptr = 0; | |
3025 | bcc_ptr++; | |
3026 | } | |
3027 | bytes_returned = | |
e89dc920 | 3028 | cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", |
1da177e4 LT |
3029 | 32, nls_codepage); |
3030 | bcc_ptr += 2 * bytes_returned; | |
3031 | bytes_returned = | |
e9ff3990 | 3032 | cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32, |
1da177e4 LT |
3033 | nls_codepage); |
3034 | bcc_ptr += 2 * bytes_returned; | |
3035 | bcc_ptr += 2; /* null term version string */ | |
3036 | bytes_returned = | |
e89dc920 | 3037 | cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, |
1da177e4 LT |
3038 | 64, nls_codepage); |
3039 | bcc_ptr += 2 * bytes_returned; | |
3040 | *(bcc_ptr + 1) = 0; | |
3041 | *(bcc_ptr + 2) = 0; | |
3042 | bcc_ptr += 2; /* null terminate network opsys string */ | |
3043 | *(bcc_ptr + 1) = 0; | |
3044 | *(bcc_ptr + 2) = 0; | |
3045 | bcc_ptr += 2; /* null domain */ | |
3046 | } else { /* ASCII */ | |
3047 | if (domain == NULL) { | |
3048 | SecurityBlob->DomainName.Buffer = 0; | |
3049 | SecurityBlob->DomainName.Length = 0; | |
3050 | SecurityBlob->DomainName.MaximumLength = 0; | |
3051 | } else { | |
77159b4d | 3052 | __u16 ln; |
1da177e4 LT |
3053 | negotiate_flags |= NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED; |
3054 | strncpy(bcc_ptr, domain, 63); | |
77159b4d | 3055 | ln = strnlen(domain, 64); |
1da177e4 | 3056 | SecurityBlob->DomainName.MaximumLength = |
77159b4d | 3057 | cpu_to_le16(ln); |
1da177e4 LT |
3058 | SecurityBlob->DomainName.Buffer = |
3059 | cpu_to_le32(SecurityBlobLength); | |
77159b4d SF |
3060 | bcc_ptr += ln; |
3061 | SecurityBlobLength += ln; | |
3062 | SecurityBlob->DomainName.Length = cpu_to_le16(ln); | |
1da177e4 LT |
3063 | } |
3064 | if (user == NULL) { | |
3065 | SecurityBlob->UserName.Buffer = 0; | |
3066 | SecurityBlob->UserName.Length = 0; | |
3067 | SecurityBlob->UserName.MaximumLength = 0; | |
3068 | } else { | |
77159b4d | 3069 | __u16 ln; |
1da177e4 | 3070 | strncpy(bcc_ptr, user, 63); |
77159b4d SF |
3071 | ln = strnlen(user, 64); |
3072 | SecurityBlob->UserName.MaximumLength = cpu_to_le16(ln); | |
1da177e4 | 3073 | SecurityBlob->UserName.Buffer = |
77159b4d SF |
3074 | cpu_to_le32(SecurityBlobLength); |
3075 | bcc_ptr += ln; | |
3076 | SecurityBlobLength += ln; | |
3077 | SecurityBlob->UserName.Length = cpu_to_le16(ln); | |
1da177e4 LT |
3078 | } |
3079 | /* BB fill in our workstation name if known BB */ | |
3080 | ||
3081 | strcpy(bcc_ptr, "Linux version "); | |
3082 | bcc_ptr += strlen("Linux version "); | |
e9ff3990 SH |
3083 | strcpy(bcc_ptr, utsname()->release); |
3084 | bcc_ptr += strlen(utsname()->release) + 1; | |
1da177e4 LT |
3085 | strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); |
3086 | bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; | |
3087 | bcc_ptr++; /* null domain */ | |
3088 | *bcc_ptr = 0; | |
3089 | } | |
3090 | SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags); | |
3091 | pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength); | |
3092 | count = (long) bcc_ptr - (long) pByteArea(smb_buffer); | |
3093 | smb_buffer->smb_buf_length += count; | |
3094 | pSMB->req.ByteCount = cpu_to_le16(count); | |
3095 | ||
3096 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, | |
3097 | &bytes_returned, 1); | |
3098 | if (rc) { | |
3099 | /* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */ | |
3100 | } else if ((smb_buffer_response->WordCount == 3) | |
3101 | || (smb_buffer_response->WordCount == 4)) { | |
3102 | __u16 action = le16_to_cpu(pSMBr->resp.Action); | |
3103 | __u16 blob_len = | |
3104 | le16_to_cpu(pSMBr->resp.SecurityBlobLength); | |
3105 | if (action & GUEST_LOGIN) | |
50c2f753 SF |
3106 | cFYI(1, (" Guest login")); /* BB Should we set anything |
3107 | in SesInfo struct ? */ | |
3108 | /* if (SecurityBlob2->MessageType != NtLm??) { | |
3109 | cFYI("Unexpected message type on auth response is %d")); | |
3110 | } */ | |
3111 | ||
1da177e4 LT |
3112 | if (ses) { |
3113 | cFYI(1, | |
50c2f753 | 3114 | ("Check challenge UID %d vs auth response UID %d", |
1da177e4 | 3115 | ses->Suid, smb_buffer_response->Uid)); |
50c2f753 SF |
3116 | /* UID left in wire format */ |
3117 | ses->Suid = smb_buffer_response->Uid; | |
3118 | bcc_ptr = pByteArea(smb_buffer_response); | |
3119 | /* response can have either 3 or 4 word count - Samba sends 3 */ | |
1da177e4 LT |
3120 | if ((pSMBr->resp.hdr.WordCount == 3) |
3121 | || ((pSMBr->resp.hdr.WordCount == 4) | |
3122 | && (blob_len < | |
3123 | pSMBr->resp.ByteCount))) { | |
3124 | if (pSMBr->resp.hdr.WordCount == 4) { | |
3125 | bcc_ptr += | |
3126 | blob_len; | |
3127 | cFYI(1, | |
3128 | ("Security Blob Length %d ", | |
3129 | blob_len)); | |
3130 | } | |
3131 | ||
3132 | cFYI(1, | |
3133 | ("NTLMSSP response to Authenticate ")); | |
3134 | ||
3135 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { | |
3136 | if ((long) (bcc_ptr) % 2) { | |
3137 | remaining_words = | |
3138 | (BCC(smb_buffer_response) | |
3139 | - 1) / 2; | |
3140 | bcc_ptr++; /* Unicode strings must be word aligned */ | |
3141 | } else { | |
3142 | remaining_words = BCC(smb_buffer_response) / 2; | |
3143 | } | |
77159b4d SF |
3144 | len = UniStrnlen((wchar_t *) bcc_ptr, |
3145 | remaining_words - 1); | |
1da177e4 LT |
3146 | /* We look for obvious messed up bcc or strings in response so we do not go off |
3147 | the end since (at least) WIN2K and Windows XP have a major bug in not null | |
3148 | terminating last Unicode string in response */ | |
fb8c4b14 | 3149 | if (ses->serverOS) |
08775834 | 3150 | kfree(ses->serverOS); |
1da177e4 | 3151 | ses->serverOS = |
e915fc49 | 3152 | kzalloc(2 * (len + 1), GFP_KERNEL); |
1da177e4 | 3153 | cifs_strfromUCS_le(ses->serverOS, |
e89dc920 | 3154 | (__le16 *) |
1da177e4 LT |
3155 | bcc_ptr, len, |
3156 | nls_codepage); | |
3157 | bcc_ptr += 2 * (len + 1); | |
3158 | remaining_words -= len + 1; | |
3159 | ses->serverOS[2 * len] = 0; | |
3160 | ses->serverOS[1 + (2 * len)] = 0; | |
3161 | if (remaining_words > 0) { | |
3162 | len = UniStrnlen((wchar_t *) | |
3163 | bcc_ptr, | |
3164 | remaining_words | |
3165 | - 1); | |
cd49b492 | 3166 | kfree(ses->serverNOS); |
1da177e4 | 3167 | ses->serverNOS = |
e915fc49 | 3168 | kzalloc(2 * (len + 1), |
1da177e4 LT |
3169 | GFP_KERNEL); |
3170 | cifs_strfromUCS_le(ses-> | |
3171 | serverNOS, | |
e89dc920 | 3172 | (__le16 *) |
1da177e4 LT |
3173 | bcc_ptr, |
3174 | len, | |
3175 | nls_codepage); | |
3176 | bcc_ptr += 2 * (len + 1); | |
3177 | ses->serverNOS[2 * len] = 0; | |
3178 | ses->serverNOS[1+(2*len)] = 0; | |
3179 | remaining_words -= len + 1; | |
3180 | if (remaining_words > 0) { | |
50c2f753 | 3181 | len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); |
1da177e4 | 3182 | /* last string not always null terminated (e.g. for Windows XP & 2000) */ |
fb8c4b14 | 3183 | if (ses->serverDomain) |
a424f8bf | 3184 | kfree(ses->serverDomain); |
1da177e4 | 3185 | ses->serverDomain = |
e915fc49 | 3186 | kzalloc(2 * |
1da177e4 LT |
3187 | (len + |
3188 | 1), | |
3189 | GFP_KERNEL); | |
3190 | cifs_strfromUCS_le | |
3191 | (ses-> | |
3192 | serverDomain, | |
e89dc920 | 3193 | (__le16 *) |
1da177e4 LT |
3194 | bcc_ptr, len, |
3195 | nls_codepage); | |
3196 | bcc_ptr += | |
3197 | 2 * (len + 1); | |
3198 | ses-> | |
3199 | serverDomain[2 | |
3200 | * len] | |
3201 | = 0; | |
3202 | ses-> | |
3203 | serverDomain[1 | |
3204 | + | |
3205 | (2 | |
3206 | * | |
3207 | len)] | |
3208 | = 0; | |
3209 | } /* else no more room so create dummy domain string */ | |
a424f8bf | 3210 | else { |
fb8c4b14 | 3211 | if (ses->serverDomain) |
a424f8bf | 3212 | kfree(ses->serverDomain); |
e915fc49 | 3213 | ses->serverDomain = kzalloc(2,GFP_KERNEL); |
a424f8bf | 3214 | } |
1da177e4 | 3215 | } else { /* no room so create dummy domain and NOS string */ |
fb8c4b14 | 3216 | if (ses->serverDomain) |
a424f8bf | 3217 | kfree(ses->serverDomain); |
e915fc49 | 3218 | ses->serverDomain = kzalloc(2, GFP_KERNEL); |
cd49b492 | 3219 | kfree(ses->serverNOS); |
e915fc49 | 3220 | ses->serverNOS = kzalloc(2, GFP_KERNEL); |
1da177e4 LT |
3221 | } |
3222 | } else { /* ASCII */ | |
3223 | len = strnlen(bcc_ptr, 1024); | |
50c2f753 SF |
3224 | if (((long) bcc_ptr + len) - |
3225 | (long) pByteArea(smb_buffer_response) | |
63135e08 | 3226 | <= BCC(smb_buffer_response)) { |
fb8c4b14 | 3227 | if (ses->serverOS) |
a424f8bf | 3228 | kfree(ses->serverOS); |
77159b4d | 3229 | ses->serverOS = kzalloc(len + 1, GFP_KERNEL); |
1da177e4 LT |
3230 | strncpy(ses->serverOS,bcc_ptr, len); |
3231 | ||
3232 | bcc_ptr += len; | |
3233 | bcc_ptr[0] = 0; /* null terminate the string */ | |
3234 | bcc_ptr++; | |
3235 | ||
3236 | len = strnlen(bcc_ptr, 1024); | |
cd49b492 | 3237 | kfree(ses->serverNOS); |
50c2f753 SF |
3238 | ses->serverNOS = kzalloc(len+1, |
3239 | GFP_KERNEL); | |
63135e08 SF |
3240 | strncpy(ses->serverNOS, |
3241 | bcc_ptr, len); | |
1da177e4 LT |
3242 | bcc_ptr += len; |
3243 | bcc_ptr[0] = 0; | |
3244 | bcc_ptr++; | |
3245 | ||
3246 | len = strnlen(bcc_ptr, 1024); | |
fb8c4b14 | 3247 | if (ses->serverDomain) |
a424f8bf | 3248 | kfree(ses->serverDomain); |
63135e08 SF |
3249 | ses->serverDomain = |
3250 | kzalloc(len+1, | |
3251 | GFP_KERNEL); | |
3252 | strncpy(ses->serverDomain, | |
3253 | bcc_ptr, len); | |
1da177e4 LT |
3254 | bcc_ptr += len; |
3255 | bcc_ptr[0] = 0; | |
3256 | bcc_ptr++; | |
3257 | } else | |
3258 | cFYI(1, | |
63135e08 SF |
3259 | ("field of length %d " |
3260 | "extends beyond end of smb ", | |
1da177e4 LT |
3261 | len)); |
3262 | } | |
3263 | } else { | |
3264 | cERROR(1, | |
63135e08 SF |
3265 | (" Security Blob extends beyond end " |
3266 | "of SMB")); | |
1da177e4 LT |
3267 | } |
3268 | } else { | |
3269 | cERROR(1, ("No session structure passed in.")); | |
3270 | } | |
3271 | } else { | |
3272 | cERROR(1, | |
3273 | (" Invalid Word count %d: ", | |
3274 | smb_buffer_response->WordCount)); | |
3275 | rc = -EIO; | |
3276 | } | |
3277 | ||
3278 | if (smb_buffer) | |
3279 | cifs_buf_release(smb_buffer); | |
3280 | ||
3281 | return rc; | |
3282 | } | |
3283 | ||
3284 | int | |
3285 | CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, | |
3286 | const char *tree, struct cifsTconInfo *tcon, | |
3287 | const struct nls_table *nls_codepage) | |
3288 | { | |
3289 | struct smb_hdr *smb_buffer; | |
3290 | struct smb_hdr *smb_buffer_response; | |
3291 | TCONX_REQ *pSMB; | |
3292 | TCONX_RSP *pSMBr; | |
3293 | unsigned char *bcc_ptr; | |
3294 | int rc = 0; | |
3295 | int length; | |
3296 | __u16 count; | |
3297 | ||
3298 | if (ses == NULL) | |
3299 | return -EIO; | |
3300 | ||
3301 | smb_buffer = cifs_buf_get(); | |
3302 | if (smb_buffer == NULL) { | |
3303 | return -ENOMEM; | |
3304 | } | |
3305 | smb_buffer_response = smb_buffer; | |
3306 | ||
3307 | header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX, | |
3308 | NULL /*no tid */ , 4 /*wct */ ); | |
1982c344 SF |
3309 | |
3310 | smb_buffer->Mid = GetNextMid(ses->server); | |
1da177e4 LT |
3311 | smb_buffer->Uid = ses->Suid; |
3312 | pSMB = (TCONX_REQ *) smb_buffer; | |
3313 | pSMBr = (TCONX_RSP *) smb_buffer_response; | |
3314 | ||
3315 | pSMB->AndXCommand = 0xFF; | |
3316 | pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO); | |
1da177e4 | 3317 | bcc_ptr = &pSMB->Password[0]; |
fb8c4b14 | 3318 | if ((ses->server->secMode) & SECMODE_USER) { |
eeac8047 | 3319 | pSMB->PasswordLength = cpu_to_le16(1); /* minimum */ |
7c7b25bc | 3320 | *bcc_ptr = 0; /* password is null byte */ |
eeac8047 | 3321 | bcc_ptr++; /* skip password */ |
7c7b25bc | 3322 | /* already aligned so no need to do it below */ |
eeac8047 | 3323 | } else { |
7c7b25bc | 3324 | pSMB->PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE); |
eeac8047 SF |
3325 | /* BB FIXME add code to fail this if NTLMv2 or Kerberos |
3326 | specified as required (when that support is added to | |
3327 | the vfs in the future) as only NTLM or the much | |
7c7b25bc | 3328 | weaker LANMAN (which we do not send by default) is accepted |
eeac8047 SF |
3329 | by Samba (not sure whether other servers allow |
3330 | NTLMv2 password here) */ | |
7c7b25bc | 3331 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
50c2f753 | 3332 | if ((extended_security & CIFSSEC_MAY_LANMAN) && |
7c7b25bc SF |
3333 | (ses->server->secType == LANMAN)) |
3334 | calc_lanman_hash(ses, bcc_ptr); | |
3335 | else | |
3336 | #endif /* CIFS_WEAK_PW_HASH */ | |
eeac8047 SF |
3337 | SMBNTencrypt(ses->password, |
3338 | ses->server->cryptKey, | |
3339 | bcc_ptr); | |
3340 | ||
7c7b25bc | 3341 | bcc_ptr += CIFS_SESS_KEY_SIZE; |
fb8c4b14 | 3342 | if (ses->capabilities & CAP_UNICODE) { |
7c7b25bc SF |
3343 | /* must align unicode strings */ |
3344 | *bcc_ptr = 0; /* null byte password */ | |
3345 | bcc_ptr++; | |
3346 | } | |
eeac8047 | 3347 | } |
1da177e4 | 3348 | |
50c2f753 | 3349 | if (ses->server->secMode & |
a878fb22 | 3350 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
1da177e4 LT |
3351 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
3352 | ||
3353 | if (ses->capabilities & CAP_STATUS32) { | |
3354 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; | |
3355 | } | |
3356 | if (ses->capabilities & CAP_DFS) { | |
3357 | smb_buffer->Flags2 |= SMBFLG2_DFS; | |
3358 | } | |
3359 | if (ses->capabilities & CAP_UNICODE) { | |
3360 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; | |
3361 | length = | |
50c2f753 SF |
3362 | cifs_strtoUCS((__le16 *) bcc_ptr, tree, |
3363 | 6 /* max utf8 char length in bytes */ * | |
a878fb22 SF |
3364 | (/* server len*/ + 256 /* share len */), nls_codepage); |
3365 | bcc_ptr += 2 * length; /* convert num 16 bit words to bytes */ | |
1da177e4 LT |
3366 | bcc_ptr += 2; /* skip trailing null */ |
3367 | } else { /* ASCII */ | |
1da177e4 LT |
3368 | strcpy(bcc_ptr, tree); |
3369 | bcc_ptr += strlen(tree) + 1; | |
3370 | } | |
3371 | strcpy(bcc_ptr, "?????"); | |
3372 | bcc_ptr += strlen("?????"); | |
3373 | bcc_ptr += 1; | |
3374 | count = bcc_ptr - &pSMB->Password[0]; | |
3375 | pSMB->hdr.smb_buf_length += count; | |
3376 | pSMB->ByteCount = cpu_to_le16(count); | |
3377 | ||
3378 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length, 0); | |
3379 | ||
3380 | /* if (rc) rc = map_smb_to_linux_error(smb_buffer_response); */ | |
3381 | /* above now done in SendReceive */ | |
3382 | if ((rc == 0) && (tcon != NULL)) { | |
3383 | tcon->tidStatus = CifsGood; | |
3384 | tcon->tid = smb_buffer_response->Tid; | |
3385 | bcc_ptr = pByteArea(smb_buffer_response); | |
3386 | length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2); | |
50c2f753 SF |
3387 | /* skip service field (NB: this field is always ASCII) */ |
3388 | bcc_ptr += length + 1; | |
1da177e4 LT |
3389 | strncpy(tcon->treeName, tree, MAX_TREE_SIZE); |
3390 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { | |
3391 | length = UniStrnlen((wchar_t *) bcc_ptr, 512); | |
3392 | if ((bcc_ptr + (2 * length)) - | |
3393 | pByteArea(smb_buffer_response) <= | |
3394 | BCC(smb_buffer_response)) { | |
f99d49ad | 3395 | kfree(tcon->nativeFileSystem); |
1da177e4 | 3396 | tcon->nativeFileSystem = |
e915fc49 | 3397 | kzalloc(length + 2, GFP_KERNEL); |
88f370a6 SF |
3398 | if (tcon->nativeFileSystem) |
3399 | cifs_strfromUCS_le( | |
3400 | tcon->nativeFileSystem, | |
3401 | (__le16 *) bcc_ptr, | |
3402 | length, nls_codepage); | |
1da177e4 LT |
3403 | bcc_ptr += 2 * length; |
3404 | bcc_ptr[0] = 0; /* null terminate the string */ | |
3405 | bcc_ptr[1] = 0; | |
3406 | bcc_ptr += 2; | |
3407 | } | |
50c2f753 | 3408 | /* else do not bother copying these information fields*/ |
1da177e4 LT |
3409 | } else { |
3410 | length = strnlen(bcc_ptr, 1024); | |
3411 | if ((bcc_ptr + length) - | |
3412 | pByteArea(smb_buffer_response) <= | |
3413 | BCC(smb_buffer_response)) { | |
f99d49ad | 3414 | kfree(tcon->nativeFileSystem); |
1da177e4 | 3415 | tcon->nativeFileSystem = |
e915fc49 | 3416 | kzalloc(length + 1, GFP_KERNEL); |
88f370a6 SF |
3417 | if (tcon->nativeFileSystem) |
3418 | strncpy(tcon->nativeFileSystem, bcc_ptr, | |
3419 | length); | |
1da177e4 | 3420 | } |
50c2f753 | 3421 | /* else do not bother copying these information fields*/ |
1da177e4 | 3422 | } |
fb8c4b14 | 3423 | if ((smb_buffer_response->WordCount == 3) || |
1a4e15a0 SF |
3424 | (smb_buffer_response->WordCount == 7)) |
3425 | /* field is in same location */ | |
3979877e SF |
3426 | tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport); |
3427 | else | |
3428 | tcon->Flags = 0; | |
1da177e4 LT |
3429 | cFYI(1, ("Tcon flags: 0x%x ", tcon->Flags)); |
3430 | } else if ((rc == 0) && tcon == NULL) { | |
50c2f753 | 3431 | /* all we need to save for IPC$ connection */ |
1da177e4 LT |
3432 | ses->ipc_tid = smb_buffer_response->Tid; |
3433 | } | |
3434 | ||
3435 | if (smb_buffer) | |
3436 | cifs_buf_release(smb_buffer); | |
3437 | return rc; | |
3438 | } | |
3439 | ||
3440 | int | |
3441 | cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) | |
3442 | { | |
3443 | int rc = 0; | |
3444 | int xid; | |
3445 | struct cifsSesInfo *ses = NULL; | |
3446 | struct task_struct *cifsd_task; | |
50c2f753 | 3447 | char *tmp; |
1da177e4 LT |
3448 | |
3449 | xid = GetXid(); | |
3450 | ||
3451 | if (cifs_sb->tcon) { | |
3452 | ses = cifs_sb->tcon->ses; /* save ptr to ses before delete tcon!*/ | |
3453 | rc = CIFSSMBTDis(xid, cifs_sb->tcon); | |
3454 | if (rc == -EBUSY) { | |
3455 | FreeXid(xid); | |
3456 | return 0; | |
3457 | } | |
3458 | tconInfoFree(cifs_sb->tcon); | |
3459 | if ((ses) && (ses->server)) { | |
3460 | /* save off task so we do not refer to ses later */ | |
3461 | cifsd_task = ses->server->tsk; | |
3462 | cFYI(1, ("About to do SMBLogoff ")); | |
3463 | rc = CIFSSMBLogoff(xid, ses); | |
3464 | if (rc == -EBUSY) { | |
3465 | FreeXid(xid); | |
3466 | return 0; | |
3467 | } else if (rc == -ESHUTDOWN) { | |
467a8f8d | 3468 | cFYI(1, ("Waking up socket by sending signal")); |
f7f7c31c | 3469 | if (cifsd_task) { |
50c2f753 | 3470 | force_sig(SIGKILL, cifsd_task); |
aaf737ad | 3471 | kthread_stop(cifsd_task); |
f191401f | 3472 | } |
1da177e4 LT |
3473 | rc = 0; |
3474 | } /* else - we have an smb session | |
3475 | left on this socket do not kill cifsd */ | |
3476 | } else | |
3477 | cFYI(1, ("No session or bad tcon")); | |
3478 | } | |
50c2f753 | 3479 | |
1da177e4 | 3480 | cifs_sb->tcon = NULL; |
2fe87f02 SF |
3481 | tmp = cifs_sb->prepath; |
3482 | cifs_sb->prepathlen = 0; | |
3483 | cifs_sb->prepath = NULL; | |
3484 | kfree(tmp); | |
041e0e3b NA |
3485 | if (ses) |
3486 | schedule_timeout_interruptible(msecs_to_jiffies(500)); | |
1da177e4 LT |
3487 | if (ses) |
3488 | sesInfoFree(ses); | |
3489 | ||
3490 | FreeXid(xid); | |
50c2f753 SF |
3491 | return rc; /* BB check if we should always return zero here */ |
3492 | } | |
1da177e4 LT |
3493 | |
3494 | int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, | |
50c2f753 | 3495 | struct nls_table *nls_info) |
1da177e4 LT |
3496 | { |
3497 | int rc = 0; | |
7c7b25bc | 3498 | char ntlm_session_key[CIFS_SESS_KEY_SIZE]; |
1da177e4 | 3499 | int ntlmv2_flag = FALSE; |
ad009ac9 | 3500 | int first_time = 0; |
1da177e4 LT |
3501 | |
3502 | /* what if server changes its buffer size after dropping the session? */ | |
fb8c4b14 | 3503 | if (pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ { |
1da177e4 | 3504 | rc = CIFSSMBNegotiate(xid, pSesInfo); |
fb8c4b14 | 3505 | if (rc == -EAGAIN) /* retry only once on 1st time connection */ { |
1da177e4 | 3506 | rc = CIFSSMBNegotiate(xid, pSesInfo); |
50c2f753 | 3507 | if (rc == -EAGAIN) |
1da177e4 LT |
3508 | rc = -EHOSTDOWN; |
3509 | } | |
fb8c4b14 | 3510 | if (rc == 0) { |
1da177e4 | 3511 | spin_lock(&GlobalMid_Lock); |
fb8c4b14 | 3512 | if (pSesInfo->server->tcpStatus != CifsExiting) |
1da177e4 LT |
3513 | pSesInfo->server->tcpStatus = CifsGood; |
3514 | else | |
3515 | rc = -EHOSTDOWN; | |
3516 | spin_unlock(&GlobalMid_Lock); | |
3517 | ||
3518 | } | |
ad009ac9 | 3519 | first_time = 1; |
1da177e4 LT |
3520 | } |
3521 | if (!rc) { | |
9ac00b7d | 3522 | pSesInfo->flags = 0; |
1da177e4 | 3523 | pSesInfo->capabilities = pSesInfo->server->capabilities; |
fb8c4b14 | 3524 | if (linuxExtEnabled == 0) |
1da177e4 | 3525 | pSesInfo->capabilities &= (~CAP_UNIX); |
ad009ac9 | 3526 | /* pSesInfo->sequence_number = 0;*/ |
50c2f753 SF |
3527 | cFYI(1, |
3528 | ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d", | |
1da177e4 LT |
3529 | pSesInfo->server->secMode, |
3530 | pSesInfo->server->capabilities, | |
175ec9e1 | 3531 | pSesInfo->server->timeAdj)); |
fb8c4b14 | 3532 | if (experimEnabled < 2) |
3979877e SF |
3533 | rc = CIFS_SessSetup(xid, pSesInfo, |
3534 | first_time, nls_info); | |
189acaae | 3535 | else if (extended_security |
50c2f753 | 3536 | && (pSesInfo->capabilities |
175ec9e1 | 3537 | & CAP_EXTENDED_SECURITY) |
1da177e4 | 3538 | && (pSesInfo->server->secType == NTLMSSP)) { |
189acaae | 3539 | rc = -EOPNOTSUPP; |
1da177e4 LT |
3540 | } else if (extended_security |
3541 | && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY) | |
3542 | && (pSesInfo->server->secType == RawNTLMSSP)) { | |
5815449d | 3543 | cFYI(1, ("NTLMSSP sesssetup")); |
1da177e4 LT |
3544 | rc = CIFSNTLMSSPNegotiateSessSetup(xid, |
3545 | pSesInfo, | |
3546 | &ntlmv2_flag, | |
3547 | nls_info); | |
3548 | if (!rc) { | |
fb8c4b14 | 3549 | if (ntlmv2_flag) { |
50c2f753 | 3550 | char *v2_response; |
467a8f8d | 3551 | cFYI(1, ("more secure NTLM ver2 hash")); |
50c2f753 | 3552 | if (CalcNTLMv2_partial_mac_key(pSesInfo, |
1da177e4 LT |
3553 | nls_info)) { |
3554 | rc = -ENOMEM; | |
3555 | goto ss_err_exit; | |
3556 | } else | |
3557 | v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL); | |
fb8c4b14 | 3558 | if (v2_response) { |
50c2f753 SF |
3559 | CalcNTLMv2_response(pSesInfo, |
3560 | v2_response); | |
fb8c4b14 | 3561 | /* if (first_time) |
50c2f753 SF |
3562 | cifs_calculate_ntlmv2_mac_key( |
3563 | pSesInfo->server->mac_signing_key, | |
3564 | response, ntlm_session_key,*/ | |
1da177e4 LT |
3565 | kfree(v2_response); |
3566 | /* BB Put dummy sig in SessSetup PDU? */ | |
3567 | } else { | |
3568 | rc = -ENOMEM; | |
3569 | goto ss_err_exit; | |
3570 | } | |
3571 | ||
3572 | } else { | |
3573 | SMBNTencrypt(pSesInfo->password, | |
3574 | pSesInfo->server->cryptKey, | |
3575 | ntlm_session_key); | |
3576 | ||
fb8c4b14 | 3577 | if (first_time) |
ad009ac9 | 3578 | cifs_calculate_mac_key( |
b609f06a | 3579 | &pSesInfo->server->mac_signing_key, |
ad009ac9 SF |
3580 | ntlm_session_key, |
3581 | pSesInfo->password); | |
1da177e4 LT |
3582 | } |
3583 | /* for better security the weaker lanman hash not sent | |
3584 | in AuthSessSetup so we no longer calculate it */ | |
3585 | ||
3586 | rc = CIFSNTLMSSPAuthSessSetup(xid, | |
3587 | pSesInfo, | |
3588 | ntlm_session_key, | |
3589 | ntlmv2_flag, | |
3590 | nls_info); | |
3591 | } | |
3592 | } else { /* old style NTLM 0.12 session setup */ | |
3593 | SMBNTencrypt(pSesInfo->password, | |
3594 | pSesInfo->server->cryptKey, | |
3595 | ntlm_session_key); | |
3596 | ||
fb8c4b14 | 3597 | if (first_time) |
ad009ac9 | 3598 | cifs_calculate_mac_key( |
b609f06a | 3599 | &pSesInfo->server->mac_signing_key, |
ad009ac9 SF |
3600 | ntlm_session_key, pSesInfo->password); |
3601 | ||
1da177e4 LT |
3602 | rc = CIFSSessSetup(xid, pSesInfo, |
3603 | ntlm_session_key, nls_info); | |
3604 | } | |
3605 | if (rc) { | |
fb8c4b14 | 3606 | cERROR(1, ("Send error in SessSetup = %d", rc)); |
1da177e4 | 3607 | } else { |
467a8f8d | 3608 | cFYI(1, ("CIFS Session Established successfully")); |
1da177e4 LT |
3609 | pSesInfo->status = CifsGood; |
3610 | } | |
3611 | } | |
3612 | ss_err_exit: | |
3613 | return rc; | |
3614 | } | |
3615 |