Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * fs/cifs/connect.c |
| 3 | * |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 4 | * Copyright (C) International Business Machines Corp., 2002,2006 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 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> |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 31 | #include <linux/delay.h> |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 32 | #include <linux/completion.h> |
Steve French | 0ae0efa | 2005-10-10 10:57:19 -0700 | [diff] [blame] | 33 | #include <linux/pagevec.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <asm/uaccess.h> |
| 35 | #include <asm/processor.h> |
| 36 | #include "cifspdu.h" |
| 37 | #include "cifsglob.h" |
| 38 | #include "cifsproto.h" |
| 39 | #include "cifs_unicode.h" |
| 40 | #include "cifs_debug.h" |
| 41 | #include "cifs_fs_sb.h" |
| 42 | #include "ntlmssp.h" |
| 43 | #include "nterr.h" |
| 44 | #include "rfc1002pdu.h" |
Steve French | a2653eb | 2005-11-10 15:33:38 -0800 | [diff] [blame] | 45 | #include "cn_cifs.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | |
| 47 | #define CIFS_PORT 445 |
| 48 | #define RFC1001_PORT 139 |
| 49 | |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 50 | static DECLARE_COMPLETION(cifsd_complete); |
| 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | extern void SMBencrypt(unsigned char *passwd, unsigned char *c8, |
| 53 | unsigned char *p24); |
| 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 */ |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 68 | char target_rfc1001_name[16]; /* netbios name of server for Win9x/ME */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | uid_t linux_uid; |
| 70 | gid_t linux_gid; |
| 71 | mode_t file_mode; |
| 72 | mode_t dir_mode; |
| 73 | unsigned rw:1; |
| 74 | unsigned retry:1; |
| 75 | unsigned intr:1; |
| 76 | unsigned setuids:1; |
| 77 | unsigned noperm:1; |
| 78 | unsigned no_psx_acl:1; /* set if posix acl support should be disabled */ |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 79 | unsigned cifs_acl:1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | unsigned no_xattr:1; /* set if xattr (EA) support should be disabled*/ |
| 81 | unsigned server_ino:1; /* use inode numbers from server ie UniqueId */ |
| 82 | unsigned direct_io:1; |
Steve French | 6a0b482 | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 83 | unsigned remap:1; /* set to remap seven reserved chars in filenames */ |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 84 | unsigned posix_paths:1; /* unset to not ask for posix pathnames. */ |
Steve French | d7245c2 | 2005-07-14 18:25:12 -0500 | [diff] [blame] | 85 | unsigned sfu_emul:1; |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 86 | unsigned krb5:1; |
| 87 | unsigned ntlm:1; |
| 88 | unsigned ntlmv2:1; |
| 89 | unsigned nullauth:1; /* attempt to authenticate with null user */ |
| 90 | unsigned sign:1; |
| 91 | unsigned seal:1; /* encrypt */ |
Steve French | c46fa8a | 2005-08-18 20:49:57 -0700 | [diff] [blame] | 92 | unsigned nocase; /* request case insensitive filenames */ |
| 93 | unsigned nobrl; /* disable sending byte range locks to srv */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | unsigned int rsize; |
| 95 | unsigned int wsize; |
| 96 | unsigned int sockopt; |
| 97 | unsigned short int port; |
| 98 | }; |
| 99 | |
| 100 | static int ipv4_connect(struct sockaddr_in *psin_server, |
| 101 | struct socket **csocket, |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 102 | char * netb_name, |
| 103 | char * server_netb_name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | static int ipv6_connect(struct sockaddr_in6 *psin_server, |
| 105 | struct socket **csocket); |
| 106 | |
| 107 | |
| 108 | /* |
| 109 | * cifs tcp session reconnection |
| 110 | * |
| 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 | |
| 117 | int |
| 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; |
| 124 | struct mid_q_entry * mid_entry; |
| 125 | |
| 126 | spin_lock(&GlobalMid_Lock); |
| 127 | if(server->tcpStatus == CifsExiting) { |
| 128 | /* the demux thread will exit normally |
| 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 | |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 137 | cFYI(1, ("Reconnecting tcp session")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
| 154 | if((tcon) && (tcon->ses) && (tcon->ses->server == server)) { |
| 155 | tcon->tidStatus = CifsNeedReconnect; |
| 156 | } |
| 157 | } |
| 158 | read_unlock(&GlobalSMBSeslock); |
| 159 | /* do not want to be sending data on a socket we are freeing */ |
| 160 | down(&server->tcpSem); |
| 161 | if(server->ssocket) { |
| 162 | cFYI(1,("State: 0x%x Flags: 0x%lx", server->ssocket->state, |
| 163 | server->ssocket->flags)); |
| 164 | server->ssocket->ops->shutdown(server->ssocket,SEND_SHUTDOWN); |
| 165 | cFYI(1,("Post shutdown state: 0x%x Flags: 0x%lx", server->ssocket->state, |
| 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); |
| 176 | if(mid_entry) { |
| 177 | if(mid_entry->midState == MID_REQUEST_SUBMITTED) { |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 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 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | mid_entry->midState = MID_RETRY_NEEDED; |
| 183 | } |
| 184 | } |
| 185 | } |
| 186 | spin_unlock(&GlobalMid_Lock); |
| 187 | up(&server->tcpSem); |
| 188 | |
| 189 | while ((server->tcpStatus != CifsExiting) && (server->tcpStatus != CifsGood)) |
| 190 | { |
| 191 | if(server->protocolType == IPV6) { |
| 192 | rc = ipv6_connect(&server->addr.sockAddr6,&server->ssocket); |
| 193 | } else { |
| 194 | rc = ipv4_connect(&server->addr.sockAddr, |
| 195 | &server->ssocket, |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 196 | server->workstation_RFC1001_name, |
| 197 | server->server_RFC1001_name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | } |
| 199 | if(rc) { |
Steve French | b387eae | 2005-10-10 14:21:15 -0700 | [diff] [blame] | 200 | cFYI(1,("reconnect error %d",rc)); |
Steve French | 0cb766a | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 201 | msleep(3000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | } else { |
| 203 | atomic_inc(&tcpSesReconnectCount); |
| 204 | spin_lock(&GlobalMid_Lock); |
| 205 | if(server->tcpStatus != CifsExiting) |
| 206 | server->tcpStatus = CifsGood; |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 207 | server->sequence_number = 0; |
| 208 | spin_unlock(&GlobalMid_Lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | /* atomic_set(&server->inFlight,0);*/ |
| 210 | wake_up(&server->response_q); |
| 211 | } |
| 212 | } |
| 213 | return rc; |
| 214 | } |
| 215 | |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 216 | /* |
| 217 | return codes: |
| 218 | 0 not a transact2, or all data present |
| 219 | >0 transact2 with that much data missing |
| 220 | -EINVAL = invalid transact2 |
| 221 | |
| 222 | */ |
| 223 | static int check2ndT2(struct smb_hdr * pSMB, unsigned int maxBufSize) |
| 224 | { |
| 225 | struct smb_t2_rsp * pSMBt; |
| 226 | int total_data_size; |
| 227 | int data_in_this_rsp; |
| 228 | int remaining; |
| 229 | |
| 230 | if(pSMB->Command != SMB_COM_TRANSACTION2) |
| 231 | return 0; |
| 232 | |
| 233 | /* check for plausible wct, bcc and t2 data and parm sizes */ |
| 234 | /* check for parm and data offset going beyond end of smb */ |
| 235 | if(pSMB->WordCount != 10) { /* coalesce_t2 depends on this */ |
| 236 | cFYI(1,("invalid transact2 word count")); |
| 237 | return -EINVAL; |
| 238 | } |
| 239 | |
| 240 | pSMBt = (struct smb_t2_rsp *)pSMB; |
| 241 | |
| 242 | total_data_size = le16_to_cpu(pSMBt->t2_rsp.TotalDataCount); |
| 243 | data_in_this_rsp = le16_to_cpu(pSMBt->t2_rsp.DataCount); |
| 244 | |
| 245 | remaining = total_data_size - data_in_this_rsp; |
| 246 | |
| 247 | if(remaining == 0) |
| 248 | return 0; |
| 249 | else if(remaining < 0) { |
| 250 | cFYI(1,("total data %d smaller than data in frame %d", |
| 251 | total_data_size, data_in_this_rsp)); |
| 252 | return -EINVAL; |
| 253 | } else { |
| 254 | cFYI(1,("missing %d bytes from transact2, check next response", |
| 255 | remaining)); |
| 256 | if(total_data_size > maxBufSize) { |
| 257 | cERROR(1,("TotalDataSize %d is over maximum buffer %d", |
| 258 | total_data_size,maxBufSize)); |
| 259 | return -EINVAL; |
| 260 | } |
| 261 | return remaining; |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | static int coalesce_t2(struct smb_hdr * psecond, struct smb_hdr *pTargetSMB) |
| 266 | { |
| 267 | struct smb_t2_rsp *pSMB2 = (struct smb_t2_rsp *)psecond; |
| 268 | struct smb_t2_rsp *pSMBt = (struct smb_t2_rsp *)pTargetSMB; |
| 269 | int total_data_size; |
| 270 | int total_in_buf; |
| 271 | int remaining; |
| 272 | int total_in_buf2; |
| 273 | char * data_area_of_target; |
| 274 | char * data_area_of_buf2; |
| 275 | __u16 byte_count; |
| 276 | |
| 277 | total_data_size = le16_to_cpu(pSMBt->t2_rsp.TotalDataCount); |
| 278 | |
| 279 | if(total_data_size != le16_to_cpu(pSMB2->t2_rsp.TotalDataCount)) { |
| 280 | cFYI(1,("total data sizes of primary and secondary t2 differ")); |
| 281 | } |
| 282 | |
| 283 | total_in_buf = le16_to_cpu(pSMBt->t2_rsp.DataCount); |
| 284 | |
| 285 | remaining = total_data_size - total_in_buf; |
| 286 | |
| 287 | if(remaining < 0) |
| 288 | return -EINVAL; |
| 289 | |
| 290 | if(remaining == 0) /* nothing to do, ignore */ |
| 291 | return 0; |
| 292 | |
| 293 | total_in_buf2 = le16_to_cpu(pSMB2->t2_rsp.DataCount); |
| 294 | if(remaining < total_in_buf2) { |
| 295 | cFYI(1,("transact2 2nd response contains too much data")); |
| 296 | } |
| 297 | |
| 298 | /* find end of first SMB data area */ |
| 299 | data_area_of_target = (char *)&pSMBt->hdr.Protocol + |
| 300 | le16_to_cpu(pSMBt->t2_rsp.DataOffset); |
| 301 | /* validate target area */ |
| 302 | |
| 303 | data_area_of_buf2 = (char *) &pSMB2->hdr.Protocol + |
| 304 | le16_to_cpu(pSMB2->t2_rsp.DataOffset); |
| 305 | |
| 306 | data_area_of_target += total_in_buf; |
| 307 | |
| 308 | /* copy second buffer into end of first buffer */ |
| 309 | memcpy(data_area_of_target,data_area_of_buf2,total_in_buf2); |
| 310 | total_in_buf += total_in_buf2; |
| 311 | pSMBt->t2_rsp.DataCount = cpu_to_le16(total_in_buf); |
| 312 | byte_count = le16_to_cpu(BCC_LE(pTargetSMB)); |
| 313 | byte_count += total_in_buf2; |
| 314 | BCC_LE(pTargetSMB) = cpu_to_le16(byte_count); |
| 315 | |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 316 | byte_count = pTargetSMB->smb_buf_length; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 317 | byte_count += total_in_buf2; |
| 318 | |
| 319 | /* BB also add check that we are not beyond maximum buffer size */ |
| 320 | |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 321 | pTargetSMB->smb_buf_length = byte_count; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 322 | |
| 323 | if(remaining == total_in_buf2) { |
| 324 | cFYI(1,("found the last secondary response")); |
| 325 | return 0; /* we are done */ |
| 326 | } else /* more responses to go */ |
| 327 | return 1; |
| 328 | |
| 329 | } |
| 330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | static int |
| 332 | cifs_demultiplex_thread(struct TCP_Server_Info *server) |
| 333 | { |
| 334 | int length; |
| 335 | unsigned int pdu_length, total_read; |
| 336 | struct smb_hdr *smb_buffer = NULL; |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 337 | struct smb_hdr *bigbuf = NULL; |
| 338 | struct smb_hdr *smallbuf = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | struct msghdr smb_msg; |
| 340 | struct kvec iov; |
| 341 | struct socket *csocket = server->ssocket; |
| 342 | struct list_head *tmp; |
| 343 | struct cifsSesInfo *ses; |
| 344 | struct task_struct *task_to_wake = NULL; |
| 345 | struct mid_q_entry *mid_entry; |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 346 | char temp; |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 347 | int isLargeBuf = FALSE; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 348 | int isMultiRsp; |
| 349 | int reconnect; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | |
| 351 | daemonize("cifsd"); |
| 352 | allow_signal(SIGKILL); |
| 353 | current->flags |= PF_MEMALLOC; |
| 354 | server->tsk = current; /* save process info to wake at shutdown */ |
| 355 | cFYI(1, ("Demultiplex PID: %d", current->pid)); |
| 356 | write_lock(&GlobalSMBSeslock); |
| 357 | atomic_inc(&tcpSesAllocCount); |
| 358 | length = tcpSesAllocCount.counter; |
| 359 | write_unlock(&GlobalSMBSeslock); |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 360 | complete(&cifsd_complete); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | if(length > 1) { |
| 362 | mempool_resize(cifs_req_poolp, |
| 363 | length + cifs_min_rcv, |
| 364 | GFP_KERNEL); |
| 365 | } |
| 366 | |
| 367 | while (server->tcpStatus != CifsExiting) { |
Steve French | ede1327 | 2005-08-30 20:10:14 -0700 | [diff] [blame] | 368 | if (try_to_freeze()) |
| 369 | continue; |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 370 | if (bigbuf == NULL) { |
| 371 | bigbuf = cifs_buf_get(); |
| 372 | if(bigbuf == NULL) { |
| 373 | cERROR(1,("No memory for large SMB response")); |
| 374 | msleep(3000); |
| 375 | /* retry will check if exiting */ |
| 376 | continue; |
| 377 | } |
| 378 | } else if(isLargeBuf) { |
| 379 | /* we are reusing a dirtry large buf, clear its start */ |
| 380 | memset(bigbuf, 0, sizeof (struct smb_hdr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | } |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 382 | |
| 383 | if (smallbuf == NULL) { |
| 384 | smallbuf = cifs_small_buf_get(); |
| 385 | if(smallbuf == NULL) { |
| 386 | cERROR(1,("No memory for SMB response")); |
| 387 | msleep(1000); |
| 388 | /* retry will check if exiting */ |
| 389 | continue; |
| 390 | } |
| 391 | /* beginning of smb buffer is cleared in our buf_get */ |
| 392 | } else /* if existing small buf clear beginning */ |
| 393 | memset(smallbuf, 0, sizeof (struct smb_hdr)); |
| 394 | |
| 395 | isLargeBuf = FALSE; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 396 | isMultiRsp = FALSE; |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 397 | smb_buffer = smallbuf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | iov.iov_base = smb_buffer; |
| 399 | iov.iov_len = 4; |
| 400 | smb_msg.msg_control = NULL; |
| 401 | smb_msg.msg_controllen = 0; |
| 402 | length = |
| 403 | kernel_recvmsg(csocket, &smb_msg, |
| 404 | &iov, 1, 4, 0 /* BB see socket.h flags */); |
| 405 | |
| 406 | if(server->tcpStatus == CifsExiting) { |
| 407 | break; |
| 408 | } else if (server->tcpStatus == CifsNeedReconnect) { |
Steve French | 57337e4 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 409 | cFYI(1,("Reconnect after server stopped responding")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | cifs_reconnect(server); |
| 411 | cFYI(1,("call to reconnect done")); |
| 412 | csocket = server->ssocket; |
| 413 | continue; |
| 414 | } else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) { |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 415 | msleep(1); /* minimum sleep to prevent looping |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | allowing socket to clear and app threads to set |
| 417 | tcpStatus CifsNeedReconnect if server hung */ |
| 418 | continue; |
| 419 | } else if (length <= 0) { |
| 420 | if(server->tcpStatus == CifsNew) { |
Steve French | 57337e4 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 421 | cFYI(1,("tcp session abend after SMBnegprot")); |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 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 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | break; |
| 427 | } |
| 428 | if(length == -EINTR) { |
| 429 | cFYI(1,("cifsd thread killed")); |
| 430 | break; |
| 431 | } |
Steve French | 57337e4 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 432 | cFYI(1,("Reconnect after unexpected peek error %d", |
| 433 | length)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | cifs_reconnect(server); |
| 435 | csocket = server->ssocket; |
| 436 | wake_up(&server->response_q); |
| 437 | continue; |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 438 | } else if (length < 4) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | cFYI(1, |
Steve French | 57337e4 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 440 | ("Frame under four bytes received (%d bytes long)", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | length)); |
| 442 | cifs_reconnect(server); |
| 443 | csocket = server->ssocket; |
| 444 | wake_up(&server->response_q); |
| 445 | continue; |
| 446 | } |
Steve French | 67010fb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 447 | |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 448 | /* The right amount was read from socket - 4 bytes */ |
| 449 | /* so we can now interpret the length field */ |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 450 | |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 451 | /* the first byte big endian of the length field, |
| 452 | is actually not part of the length but the type |
| 453 | with the most common, zero, as regular data */ |
| 454 | temp = *((char *) smb_buffer); |
| 455 | |
| 456 | /* Note that FC 1001 length is big endian on the wire, |
| 457 | but we convert it here so it is always manipulated |
| 458 | as host byte order */ |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 459 | pdu_length = ntohl(smb_buffer->smb_buf_length); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 460 | smb_buffer->smb_buf_length = pdu_length; |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 461 | |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 462 | cFYI(1,("rfc1002 length 0x%x)", pdu_length+4)); |
| 463 | |
| 464 | if (temp == (char) RFC1002_SESSION_KEEP_ALIVE) { |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 465 | continue; |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 466 | } else if (temp == (char)RFC1002_POSITIVE_SESSION_RESPONSE) { |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 467 | cFYI(1,("Good RFC 1002 session rsp")); |
| 468 | continue; |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 469 | } else if (temp == (char)RFC1002_NEGATIVE_SESSION_RESPONSE) { |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 470 | /* we get this from Windows 98 instead of |
| 471 | an error on SMB negprot response */ |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 472 | cFYI(1,("Negative RFC1002 Session Response Error 0x%x)", |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 473 | pdu_length)); |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 474 | if(server->tcpStatus == CifsNew) { |
| 475 | /* if nack on negprot (rather than |
| 476 | ret of smb negprot error) reconnecting |
| 477 | not going to help, ret error to mount */ |
| 478 | break; |
| 479 | } else { |
| 480 | /* give server a second to |
| 481 | clean up before reconnect attempt */ |
| 482 | msleep(1000); |
| 483 | /* always try 445 first on reconnect |
| 484 | since we get NACK on some if we ever |
| 485 | connected to port 139 (the NACK is |
| 486 | since we do not begin with RFC1001 |
| 487 | session initialize frame) */ |
| 488 | server->addr.sockAddr.sin_port = |
| 489 | htons(CIFS_PORT); |
| 490 | cifs_reconnect(server); |
| 491 | csocket = server->ssocket; |
| 492 | wake_up(&server->response_q); |
| 493 | continue; |
| 494 | } |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 495 | } else if (temp != (char) 0) { |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 496 | cERROR(1,("Unknown RFC 1002 frame")); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 497 | cifs_dump_mem(" Received Data: ", (char *)smb_buffer, |
| 498 | length); |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 499 | cifs_reconnect(server); |
| 500 | csocket = server->ssocket; |
| 501 | continue; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 502 | } |
| 503 | |
| 504 | /* else we have an SMB response */ |
| 505 | if((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) || |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 506 | (pdu_length < sizeof (struct smb_hdr) - 1 - 4)) { |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 507 | cERROR(1, ("Invalid size SMB length %d pdu_length %d", |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 508 | length, pdu_length+4)); |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 509 | cifs_reconnect(server); |
| 510 | csocket = server->ssocket; |
| 511 | wake_up(&server->response_q); |
| 512 | continue; |
| 513 | } |
| 514 | |
| 515 | /* else length ok */ |
| 516 | reconnect = 0; |
| 517 | |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 518 | if(pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) { |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 519 | isLargeBuf = TRUE; |
| 520 | memcpy(bigbuf, smallbuf, 4); |
| 521 | smb_buffer = bigbuf; |
| 522 | } |
| 523 | length = 0; |
| 524 | iov.iov_base = 4 + (char *)smb_buffer; |
| 525 | iov.iov_len = pdu_length; |
| 526 | for (total_read = 0; total_read < pdu_length; |
| 527 | total_read += length) { |
| 528 | length = kernel_recvmsg(csocket, &smb_msg, &iov, 1, |
| 529 | pdu_length - total_read, 0); |
| 530 | if((server->tcpStatus == CifsExiting) || |
| 531 | (length == -EINTR)) { |
| 532 | /* then will exit */ |
| 533 | reconnect = 2; |
| 534 | break; |
| 535 | } else if (server->tcpStatus == CifsNeedReconnect) { |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 536 | cifs_reconnect(server); |
| 537 | csocket = server->ssocket; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 538 | /* Reconnect wakes up rspns q */ |
| 539 | /* Now we will reread sock */ |
| 540 | reconnect = 1; |
| 541 | break; |
| 542 | } else if ((length == -ERESTARTSYS) || |
| 543 | (length == -EAGAIN)) { |
| 544 | msleep(1); /* minimum sleep to prevent looping, |
| 545 | allowing socket to clear and app |
| 546 | threads to set tcpStatus |
| 547 | CifsNeedReconnect if server hung*/ |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 548 | continue; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 549 | } else if (length <= 0) { |
| 550 | cERROR(1,("Received no data, expecting %d", |
| 551 | pdu_length - total_read)); |
| 552 | cifs_reconnect(server); |
| 553 | csocket = server->ssocket; |
| 554 | reconnect = 1; |
| 555 | break; |
Steve French | 46810cb | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 556 | } |
| 557 | } |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 558 | if(reconnect == 2) |
| 559 | break; |
| 560 | else if(reconnect == 1) |
| 561 | continue; |
| 562 | |
| 563 | length += 4; /* account for rfc1002 hdr */ |
| 564 | |
| 565 | |
| 566 | dump_smb(smb_buffer, length); |
Steve French | 184ed21 | 2006-02-24 06:15:11 +0000 | [diff] [blame] | 567 | if (checkSMB(smb_buffer, smb_buffer->Mid, total_read+4)) { |
Steve French | b387eae | 2005-10-10 14:21:15 -0700 | [diff] [blame] | 568 | cifs_dump_mem("Bad SMB: ", smb_buffer, 48); |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 569 | continue; |
| 570 | } |
| 571 | |
| 572 | |
| 573 | task_to_wake = NULL; |
| 574 | spin_lock(&GlobalMid_Lock); |
| 575 | list_for_each(tmp, &server->pending_mid_q) { |
| 576 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); |
| 577 | |
| 578 | if ((mid_entry->mid == smb_buffer->Mid) && |
| 579 | (mid_entry->midState == MID_REQUEST_SUBMITTED) && |
| 580 | (mid_entry->command == smb_buffer->Command)) { |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 581 | if(check2ndT2(smb_buffer,server->maxBuf) > 0) { |
| 582 | /* We have a multipart transact2 resp */ |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 583 | isMultiRsp = TRUE; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 584 | if(mid_entry->resp_buf) { |
| 585 | /* merge response - fix up 1st*/ |
| 586 | if(coalesce_t2(smb_buffer, |
| 587 | mid_entry->resp_buf)) { |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 588 | break; |
| 589 | } else { |
| 590 | /* all parts received */ |
| 591 | goto multi_t2_fnd; |
| 592 | } |
| 593 | } else { |
| 594 | if(!isLargeBuf) { |
| 595 | cERROR(1,("1st trans2 resp needs bigbuf")); |
| 596 | /* BB maybe we can fix this up, switch |
| 597 | to already allocated large buffer? */ |
| 598 | } else { |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 599 | /* Have first buffer */ |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 600 | mid_entry->resp_buf = |
| 601 | smb_buffer; |
| 602 | mid_entry->largeBuf = 1; |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 603 | bigbuf = NULL; |
| 604 | } |
| 605 | } |
| 606 | break; |
| 607 | } |
| 608 | mid_entry->resp_buf = smb_buffer; |
| 609 | if(isLargeBuf) |
| 610 | mid_entry->largeBuf = 1; |
| 611 | else |
| 612 | mid_entry->largeBuf = 0; |
| 613 | multi_t2_fnd: |
| 614 | task_to_wake = mid_entry->tsk; |
| 615 | mid_entry->midState = MID_RESPONSE_RECEIVED; |
Steve French | 1047abc | 2005-10-11 19:58:06 -0700 | [diff] [blame] | 616 | #ifdef CONFIG_CIFS_STATS2 |
| 617 | mid_entry->when_received = jiffies; |
| 618 | #endif |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 619 | break; |
| 620 | } |
| 621 | } |
| 622 | spin_unlock(&GlobalMid_Lock); |
| 623 | if (task_to_wake) { |
Steve French | cd63499 | 2005-04-28 22:41:10 -0700 | [diff] [blame] | 624 | /* Was previous buf put in mpx struct for multi-rsp? */ |
| 625 | if(!isMultiRsp) { |
| 626 | /* smb buffer will be freed by user thread */ |
| 627 | if(isLargeBuf) { |
| 628 | bigbuf = NULL; |
| 629 | } else |
| 630 | smallbuf = NULL; |
| 631 | } |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 632 | wake_up_process(task_to_wake); |
Steve French | d7c8c94 | 2006-03-03 10:43:49 +0000 | [diff] [blame] | 633 | } else if ((is_valid_oplock_break(smb_buffer, server) == FALSE) |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 634 | && (isMultiRsp == FALSE)) { |
| 635 | cERROR(1, ("No task to wake, unknown frame rcvd!")); |
Steve French | 70ca734 | 2005-09-22 16:32:06 -0700 | [diff] [blame] | 636 | cifs_dump_mem("Received Data is: ",(char *)smb_buffer, |
| 637 | sizeof(struct smb_hdr)); |
Steve French | e4eb295 | 2005-04-28 22:41:09 -0700 | [diff] [blame] | 638 | } |
| 639 | } /* end while !EXITING */ |
| 640 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 641 | spin_lock(&GlobalMid_Lock); |
| 642 | server->tcpStatus = CifsExiting; |
| 643 | server->tsk = NULL; |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 644 | /* check if we have blocked requests that need to free */ |
| 645 | /* Note that cifs_max_pending is normally 50, but |
| 646 | can be set at module install time to as little as two */ |
| 647 | if(atomic_read(&server->inFlight) >= cifs_max_pending) |
| 648 | atomic_set(&server->inFlight, cifs_max_pending - 1); |
| 649 | /* We do not want to set the max_pending too low or we |
| 650 | could end up with the counter going negative */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | spin_unlock(&GlobalMid_Lock); |
| 652 | /* Although there should not be any requests blocked on |
| 653 | this queue it can not hurt to be paranoid and try to wake up requests |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 654 | that may haven been blocked when more than 50 at time were on the wire |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | to the same server - they now will see the session is in exit state |
| 656 | and get out of SendReceive. */ |
| 657 | wake_up_all(&server->request_q); |
| 658 | /* give those requests time to exit */ |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 659 | msleep(125); |
| 660 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | if(server->ssocket) { |
| 662 | sock_release(csocket); |
| 663 | server->ssocket = NULL; |
| 664 | } |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 665 | /* buffer usuallly freed in free_mid - need to free it here on exit */ |
| 666 | if (bigbuf != NULL) |
| 667 | cifs_buf_release(bigbuf); |
| 668 | if (smallbuf != NULL) |
| 669 | cifs_small_buf_release(smallbuf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | |
| 671 | read_lock(&GlobalSMBSeslock); |
| 672 | if (list_empty(&server->pending_mid_q)) { |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 673 | /* loop through server session structures attached to this and |
| 674 | mark them dead */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | list_for_each(tmp, &GlobalSMBSessionList) { |
| 676 | ses = |
| 677 | list_entry(tmp, struct cifsSesInfo, |
| 678 | cifsSessionList); |
| 679 | if (ses->server == server) { |
| 680 | ses->status = CifsExiting; |
| 681 | ses->server = NULL; |
| 682 | } |
| 683 | } |
| 684 | read_unlock(&GlobalSMBSeslock); |
| 685 | } else { |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 686 | /* although we can not zero the server struct pointer yet, |
| 687 | since there are active requests which may depnd on them, |
| 688 | mark the corresponding SMB sessions as exiting too */ |
| 689 | list_for_each(tmp, &GlobalSMBSessionList) { |
| 690 | ses = list_entry(tmp, struct cifsSesInfo, |
| 691 | cifsSessionList); |
| 692 | if (ses->server == server) { |
| 693 | ses->status = CifsExiting; |
| 694 | } |
| 695 | } |
| 696 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | spin_lock(&GlobalMid_Lock); |
| 698 | list_for_each(tmp, &server->pending_mid_q) { |
| 699 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); |
| 700 | if (mid_entry->midState == MID_REQUEST_SUBMITTED) { |
| 701 | cFYI(1, |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 702 | ("Clearing Mid 0x%x - waking up ",mid_entry->mid)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | task_to_wake = mid_entry->tsk; |
| 704 | if(task_to_wake) { |
| 705 | wake_up_process(task_to_wake); |
| 706 | } |
| 707 | } |
| 708 | } |
| 709 | spin_unlock(&GlobalMid_Lock); |
| 710 | read_unlock(&GlobalSMBSeslock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | /* 1/8th of sec is more than enough time for them to exit */ |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 712 | msleep(125); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | } |
| 714 | |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 715 | if (!list_empty(&server->pending_mid_q)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | /* mpx threads have not exited yet give them |
| 717 | at least the smb send timeout time for long ops */ |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 718 | /* due to delays on oplock break requests, we need |
| 719 | to wait at least 45 seconds before giving up |
| 720 | on a request getting a response and going ahead |
| 721 | and killing cifsd */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | cFYI(1, ("Wait for exit from demultiplex thread")); |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 723 | msleep(46000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | /* if threads still have not exited they are probably never |
| 725 | coming home not much else we can do but free the memory */ |
| 726 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | |
| 728 | write_lock(&GlobalSMBSeslock); |
| 729 | atomic_dec(&tcpSesAllocCount); |
| 730 | length = tcpSesAllocCount.counter; |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 731 | |
| 732 | /* last chance to mark ses pointers invalid |
| 733 | if there are any pointing to this (e.g |
| 734 | if a crazy root user tried to kill cifsd |
| 735 | kernel thread explicitly this might happen) */ |
| 736 | list_for_each(tmp, &GlobalSMBSessionList) { |
| 737 | ses = list_entry(tmp, struct cifsSesInfo, |
| 738 | cifsSessionList); |
| 739 | if (ses->server == server) { |
| 740 | ses->server = NULL; |
| 741 | } |
| 742 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | write_unlock(&GlobalSMBSeslock); |
Steve French | 31ca3bc | 2005-04-28 22:41:11 -0700 | [diff] [blame] | 744 | |
| 745 | kfree(server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | if(length > 0) { |
| 747 | mempool_resize(cifs_req_poolp, |
| 748 | length + cifs_min_rcv, |
| 749 | GFP_KERNEL); |
| 750 | } |
Steve French | b8643e1 | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 751 | |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 752 | complete_and_exit(&cifsd_complete, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | return 0; |
| 754 | } |
| 755 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | static int |
| 757 | cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) |
| 758 | { |
| 759 | char *value; |
| 760 | char *data; |
| 761 | unsigned int temp_len, i, j; |
| 762 | char separator[2]; |
| 763 | |
| 764 | separator[0] = ','; |
| 765 | separator[1] = 0; |
| 766 | |
| 767 | memset(vol->source_rfc1001_name,0x20,15); |
| 768 | for(i=0;i < strnlen(system_utsname.nodename,15);i++) { |
| 769 | /* does not have to be a perfect mapping since the field is |
| 770 | informational, only used for servers that do not support |
| 771 | port 445 and it can be overridden at mount time */ |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 772 | vol->source_rfc1001_name[i] = |
| 773 | toupper(system_utsname.nodename[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | } |
| 775 | vol->source_rfc1001_name[15] = 0; |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 776 | /* null target name indicates to use *SMBSERVR default called name |
| 777 | if we end up sending RFC1001 session initialize */ |
| 778 | vol->target_rfc1001_name[0] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | vol->linux_uid = current->uid; /* current->euid instead? */ |
| 780 | vol->linux_gid = current->gid; |
| 781 | vol->dir_mode = S_IRWXUGO; |
| 782 | /* 2767 perms indicate mandatory locking support */ |
| 783 | vol->file_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP); |
| 784 | |
| 785 | /* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */ |
| 786 | vol->rw = TRUE; |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 787 | vol->ntlm = TRUE; |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 788 | /* default is always to request posix paths. */ |
| 789 | vol->posix_paths = 1; |
| 790 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | if (!options) |
| 792 | return 1; |
| 793 | |
| 794 | if(strncmp(options,"sep=",4) == 0) { |
| 795 | if(options[4] != 0) { |
| 796 | separator[0] = options[4]; |
| 797 | options += 5; |
| 798 | } else { |
| 799 | cFYI(1,("Null separator not allowed")); |
| 800 | } |
| 801 | } |
| 802 | |
| 803 | while ((data = strsep(&options, separator)) != NULL) { |
| 804 | if (!*data) |
| 805 | continue; |
| 806 | if ((value = strchr(data, '=')) != NULL) |
| 807 | *value++ = '\0'; |
| 808 | |
| 809 | if (strnicmp(data, "user_xattr",10) == 0) {/*parse before user*/ |
| 810 | vol->no_xattr = 0; |
| 811 | } else if (strnicmp(data, "nouser_xattr",12) == 0) { |
| 812 | vol->no_xattr = 1; |
| 813 | } else if (strnicmp(data, "user", 4) == 0) { |
| 814 | if (!value || !*value) { |
| 815 | printk(KERN_WARNING |
| 816 | "CIFS: invalid or missing username\n"); |
| 817 | return 1; /* needs_arg; */ |
| 818 | } |
| 819 | if (strnlen(value, 200) < 200) { |
| 820 | vol->username = value; |
| 821 | } else { |
| 822 | printk(KERN_WARNING "CIFS: username too long\n"); |
| 823 | return 1; |
| 824 | } |
| 825 | } else if (strnicmp(data, "pass", 4) == 0) { |
| 826 | if (!value) { |
| 827 | vol->password = NULL; |
| 828 | continue; |
| 829 | } else if(value[0] == 0) { |
| 830 | /* check if string begins with double comma |
| 831 | since that would mean the password really |
| 832 | does start with a comma, and would not |
| 833 | indicate an empty string */ |
| 834 | if(value[1] != separator[0]) { |
| 835 | vol->password = NULL; |
| 836 | continue; |
| 837 | } |
| 838 | } |
| 839 | temp_len = strlen(value); |
| 840 | /* removed password length check, NTLM passwords |
| 841 | can be arbitrarily long */ |
| 842 | |
| 843 | /* if comma in password, the string will be |
| 844 | prematurely null terminated. Commas in password are |
| 845 | specified across the cifs mount interface by a double |
| 846 | comma ie ,, and a comma used as in other cases ie ',' |
| 847 | as a parameter delimiter/separator is single and due |
| 848 | to the strsep above is temporarily zeroed. */ |
| 849 | |
| 850 | /* NB: password legally can have multiple commas and |
| 851 | the only illegal character in a password is null */ |
| 852 | |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 853 | if ((value[temp_len] == 0) && |
| 854 | (value[temp_len+1] == separator[0])) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | /* reinsert comma */ |
| 856 | value[temp_len] = separator[0]; |
| 857 | temp_len+=2; /* move after the second comma */ |
| 858 | while(value[temp_len] != 0) { |
| 859 | if (value[temp_len] == separator[0]) { |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 860 | if (value[temp_len+1] == |
| 861 | separator[0]) { |
| 862 | /* skip second comma */ |
| 863 | temp_len++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | } else { |
| 865 | /* single comma indicating start |
| 866 | of next parm */ |
| 867 | break; |
| 868 | } |
| 869 | } |
| 870 | temp_len++; |
| 871 | } |
| 872 | if(value[temp_len] == 0) { |
| 873 | options = NULL; |
| 874 | } else { |
| 875 | value[temp_len] = 0; |
| 876 | /* point option to start of next parm */ |
| 877 | options = value + temp_len + 1; |
| 878 | } |
| 879 | /* go from value to value + temp_len condensing |
| 880 | double commas to singles. Note that this ends up |
| 881 | allocating a few bytes too many, which is ok */ |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 882 | vol->password = kzalloc(temp_len, GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 883 | if(vol->password == NULL) { |
| 884 | printk("CIFS: no memory for pass\n"); |
| 885 | return 1; |
| 886 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | for(i=0,j=0;i<temp_len;i++,j++) { |
| 888 | vol->password[j] = value[i]; |
Steve French | 09d1db5 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 889 | if(value[i] == separator[0] |
| 890 | && value[i+1] == separator[0]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | /* skip second comma */ |
| 892 | i++; |
| 893 | } |
| 894 | } |
| 895 | vol->password[j] = 0; |
| 896 | } else { |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 897 | vol->password = kzalloc(temp_len+1, GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 898 | if(vol->password == NULL) { |
| 899 | printk("CIFS: no memory for pass\n"); |
| 900 | return 1; |
| 901 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | strcpy(vol->password, value); |
| 903 | } |
| 904 | } else if (strnicmp(data, "ip", 2) == 0) { |
| 905 | if (!value || !*value) { |
| 906 | vol->UNCip = NULL; |
| 907 | } else if (strnlen(value, 35) < 35) { |
| 908 | vol->UNCip = value; |
| 909 | } else { |
| 910 | printk(KERN_WARNING "CIFS: ip address too long\n"); |
| 911 | return 1; |
| 912 | } |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 913 | } else if (strnicmp(data, "sec", 3) == 0) { |
| 914 | if (!value || !*value) { |
| 915 | cERROR(1,("no security value specified")); |
| 916 | continue; |
| 917 | } else if (strnicmp(value, "krb5i", 5) == 0) { |
| 918 | vol->sign = 1; |
| 919 | vol->krb5 = 1; |
| 920 | } else if (strnicmp(value, "krb5p", 5) == 0) { |
| 921 | /* vol->seal = 1; |
| 922 | vol->krb5 = 1; */ |
| 923 | cERROR(1,("Krb5 cifs privacy not supported")); |
| 924 | return 1; |
| 925 | } else if (strnicmp(value, "krb5", 4) == 0) { |
| 926 | vol->krb5 = 1; |
| 927 | } else if (strnicmp(value, "ntlmv2i", 7) == 0) { |
| 928 | vol->ntlmv2 = 1; |
| 929 | vol->sign = 1; |
| 930 | } else if (strnicmp(value, "ntlmv2", 6) == 0) { |
| 931 | vol->ntlmv2 = 1; |
| 932 | } else if (strnicmp(value, "ntlmi", 5) == 0) { |
| 933 | vol->ntlm = 1; |
| 934 | vol->sign = 1; |
| 935 | } else if (strnicmp(value, "ntlm", 4) == 0) { |
| 936 | /* ntlm is default so can be turned off too */ |
| 937 | vol->ntlm = 1; |
| 938 | } else if (strnicmp(value, "nontlm", 6) == 0) { |
| 939 | vol->ntlm = 0; |
| 940 | } else if (strnicmp(value, "none", 4) == 0) { |
| 941 | vol->nullauth = 1; |
| 942 | } else { |
| 943 | cERROR(1,("bad security option: %s", value)); |
| 944 | return 1; |
| 945 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 946 | } else if ((strnicmp(data, "unc", 3) == 0) |
| 947 | || (strnicmp(data, "target", 6) == 0) |
| 948 | || (strnicmp(data, "path", 4) == 0)) { |
| 949 | if (!value || !*value) { |
| 950 | printk(KERN_WARNING |
| 951 | "CIFS: invalid path to network resource\n"); |
| 952 | return 1; /* needs_arg; */ |
| 953 | } |
| 954 | if ((temp_len = strnlen(value, 300)) < 300) { |
| 955 | vol->UNC = kmalloc(temp_len+1,GFP_KERNEL); |
| 956 | if(vol->UNC == NULL) |
| 957 | return 1; |
| 958 | strcpy(vol->UNC,value); |
| 959 | if (strncmp(vol->UNC, "//", 2) == 0) { |
| 960 | vol->UNC[0] = '\\'; |
| 961 | vol->UNC[1] = '\\'; |
| 962 | } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { |
| 963 | printk(KERN_WARNING |
| 964 | "CIFS: UNC Path does not begin with // or \\\\ \n"); |
| 965 | return 1; |
| 966 | } |
| 967 | } else { |
| 968 | printk(KERN_WARNING "CIFS: UNC name too long\n"); |
| 969 | return 1; |
| 970 | } |
| 971 | } else if ((strnicmp(data, "domain", 3) == 0) |
| 972 | || (strnicmp(data, "workgroup", 5) == 0)) { |
| 973 | if (!value || !*value) { |
| 974 | printk(KERN_WARNING "CIFS: invalid domain name\n"); |
| 975 | return 1; /* needs_arg; */ |
| 976 | } |
| 977 | /* BB are there cases in which a comma can be valid in |
| 978 | a domain name and need special handling? */ |
| 979 | if (strnlen(value, 65) < 65) { |
| 980 | vol->domainname = value; |
| 981 | cFYI(1, ("Domain name set")); |
| 982 | } else { |
| 983 | printk(KERN_WARNING "CIFS: domain name too long\n"); |
| 984 | return 1; |
| 985 | } |
| 986 | } else if (strnicmp(data, "iocharset", 9) == 0) { |
| 987 | if (!value || !*value) { |
| 988 | printk(KERN_WARNING "CIFS: invalid iocharset specified\n"); |
| 989 | return 1; /* needs_arg; */ |
| 990 | } |
| 991 | if (strnlen(value, 65) < 65) { |
| 992 | if(strnicmp(value,"default",7)) |
| 993 | vol->iocharset = value; |
| 994 | /* if iocharset not set load_nls_default used by caller */ |
| 995 | cFYI(1, ("iocharset set to %s",value)); |
| 996 | } else { |
| 997 | printk(KERN_WARNING "CIFS: iocharset name too long.\n"); |
| 998 | return 1; |
| 999 | } |
| 1000 | } else if (strnicmp(data, "uid", 3) == 0) { |
| 1001 | if (value && *value) { |
| 1002 | vol->linux_uid = |
| 1003 | simple_strtoul(value, &value, 0); |
| 1004 | } |
| 1005 | } else if (strnicmp(data, "gid", 3) == 0) { |
| 1006 | if (value && *value) { |
| 1007 | vol->linux_gid = |
| 1008 | simple_strtoul(value, &value, 0); |
| 1009 | } |
| 1010 | } else if (strnicmp(data, "file_mode", 4) == 0) { |
| 1011 | if (value && *value) { |
| 1012 | vol->file_mode = |
| 1013 | simple_strtoul(value, &value, 0); |
| 1014 | } |
| 1015 | } else if (strnicmp(data, "dir_mode", 4) == 0) { |
| 1016 | if (value && *value) { |
| 1017 | vol->dir_mode = |
| 1018 | simple_strtoul(value, &value, 0); |
| 1019 | } |
| 1020 | } else if (strnicmp(data, "dirmode", 4) == 0) { |
| 1021 | if (value && *value) { |
| 1022 | vol->dir_mode = |
| 1023 | simple_strtoul(value, &value, 0); |
| 1024 | } |
| 1025 | } else if (strnicmp(data, "port", 4) == 0) { |
| 1026 | if (value && *value) { |
| 1027 | vol->port = |
| 1028 | simple_strtoul(value, &value, 0); |
| 1029 | } |
| 1030 | } else if (strnicmp(data, "rsize", 5) == 0) { |
| 1031 | if (value && *value) { |
| 1032 | vol->rsize = |
| 1033 | simple_strtoul(value, &value, 0); |
| 1034 | } |
| 1035 | } else if (strnicmp(data, "wsize", 5) == 0) { |
| 1036 | if (value && *value) { |
| 1037 | vol->wsize = |
| 1038 | simple_strtoul(value, &value, 0); |
| 1039 | } |
| 1040 | } else if (strnicmp(data, "sockopt", 5) == 0) { |
| 1041 | if (value && *value) { |
| 1042 | vol->sockopt = |
| 1043 | simple_strtoul(value, &value, 0); |
| 1044 | } |
| 1045 | } else if (strnicmp(data, "netbiosname", 4) == 0) { |
| 1046 | if (!value || !*value || (*value == ' ')) { |
| 1047 | cFYI(1,("invalid (empty) netbiosname specified")); |
| 1048 | } else { |
| 1049 | memset(vol->source_rfc1001_name,0x20,15); |
| 1050 | for(i=0;i<15;i++) { |
| 1051 | /* BB are there cases in which a comma can be |
| 1052 | valid in this workstation netbios name (and need |
| 1053 | special handling)? */ |
| 1054 | |
| 1055 | /* We do not uppercase netbiosname for user */ |
| 1056 | if (value[i]==0) |
| 1057 | break; |
| 1058 | else |
| 1059 | vol->source_rfc1001_name[i] = value[i]; |
| 1060 | } |
| 1061 | /* The string has 16th byte zero still from |
| 1062 | set at top of the function */ |
| 1063 | if((i==15) && (value[i] != 0)) |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 1064 | printk(KERN_WARNING "CIFS: netbiosname longer than 15 truncated.\n"); |
| 1065 | } |
| 1066 | } else if (strnicmp(data, "servern", 7) == 0) { |
| 1067 | /* servernetbiosname specified override *SMBSERVER */ |
| 1068 | if (!value || !*value || (*value == ' ')) { |
| 1069 | cFYI(1,("empty server netbiosname specified")); |
| 1070 | } else { |
| 1071 | /* last byte, type, is 0x20 for servr type */ |
| 1072 | memset(vol->target_rfc1001_name,0x20,16); |
| 1073 | |
| 1074 | for(i=0;i<15;i++) { |
| 1075 | /* BB are there cases in which a comma can be |
| 1076 | valid in this workstation netbios name (and need |
| 1077 | special handling)? */ |
| 1078 | |
| 1079 | /* user or mount helper must uppercase netbiosname */ |
| 1080 | if (value[i]==0) |
| 1081 | break; |
| 1082 | else |
| 1083 | vol->target_rfc1001_name[i] = value[i]; |
| 1084 | } |
| 1085 | /* The string has 16th byte zero still from |
| 1086 | set at top of the function */ |
| 1087 | if((i==15) && (value[i] != 0)) |
| 1088 | printk(KERN_WARNING "CIFS: server netbiosname longer than 15 truncated.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | } |
| 1090 | } else if (strnicmp(data, "credentials", 4) == 0) { |
| 1091 | /* ignore */ |
| 1092 | } else if (strnicmp(data, "version", 3) == 0) { |
| 1093 | /* ignore */ |
| 1094 | } else if (strnicmp(data, "guest",5) == 0) { |
| 1095 | /* ignore */ |
| 1096 | } else if (strnicmp(data, "rw", 2) == 0) { |
| 1097 | vol->rw = TRUE; |
| 1098 | } else if ((strnicmp(data, "suid", 4) == 0) || |
| 1099 | (strnicmp(data, "nosuid", 6) == 0) || |
| 1100 | (strnicmp(data, "exec", 4) == 0) || |
| 1101 | (strnicmp(data, "noexec", 6) == 0) || |
| 1102 | (strnicmp(data, "nodev", 5) == 0) || |
| 1103 | (strnicmp(data, "noauto", 6) == 0) || |
| 1104 | (strnicmp(data, "dev", 3) == 0)) { |
| 1105 | /* The mount tool or mount.cifs helper (if present) |
| 1106 | uses these opts to set flags, and the flags are read |
| 1107 | by the kernel vfs layer before we get here (ie |
| 1108 | before read super) so there is no point trying to |
| 1109 | parse these options again and set anything and it |
| 1110 | is ok to just ignore them */ |
| 1111 | continue; |
| 1112 | } else if (strnicmp(data, "ro", 2) == 0) { |
| 1113 | vol->rw = FALSE; |
| 1114 | } else if (strnicmp(data, "hard", 4) == 0) { |
| 1115 | vol->retry = 1; |
| 1116 | } else if (strnicmp(data, "soft", 4) == 0) { |
| 1117 | vol->retry = 0; |
| 1118 | } else if (strnicmp(data, "perm", 4) == 0) { |
| 1119 | vol->noperm = 0; |
| 1120 | } else if (strnicmp(data, "noperm", 6) == 0) { |
| 1121 | vol->noperm = 1; |
Steve French | 6a0b482 | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 1122 | } else if (strnicmp(data, "mapchars", 8) == 0) { |
| 1123 | vol->remap = 1; |
| 1124 | } else if (strnicmp(data, "nomapchars", 10) == 0) { |
| 1125 | vol->remap = 0; |
Steve French | d7245c2 | 2005-07-14 18:25:12 -0500 | [diff] [blame] | 1126 | } else if (strnicmp(data, "sfu", 3) == 0) { |
| 1127 | vol->sfu_emul = 1; |
| 1128 | } else if (strnicmp(data, "nosfu", 5) == 0) { |
| 1129 | vol->sfu_emul = 0; |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 1130 | } else if (strnicmp(data, "posixpaths", 10) == 0) { |
| 1131 | vol->posix_paths = 1; |
| 1132 | } else if (strnicmp(data, "noposixpaths", 12) == 0) { |
| 1133 | vol->posix_paths = 0; |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 1134 | } else if ((strnicmp(data, "nocase", 6) == 0) || |
| 1135 | (strnicmp(data, "ignorecase", 10) == 0)) { |
Steve French | c46fa8a | 2005-08-18 20:49:57 -0700 | [diff] [blame] | 1136 | vol->nocase = 1; |
| 1137 | } else if (strnicmp(data, "brl", 3) == 0) { |
| 1138 | vol->nobrl = 0; |
Steve French | cb8be64 | 2005-08-30 15:25:52 -0700 | [diff] [blame] | 1139 | } else if ((strnicmp(data, "nobrl", 5) == 0) || |
Steve French | 1c95518 | 2005-08-30 20:58:07 -0700 | [diff] [blame] | 1140 | (strnicmp(data, "nolock", 6) == 0)) { |
Steve French | c46fa8a | 2005-08-18 20:49:57 -0700 | [diff] [blame] | 1141 | vol->nobrl = 1; |
Steve French | d3485d3 | 2005-08-19 11:04:29 -0700 | [diff] [blame] | 1142 | /* turn off mandatory locking in mode |
| 1143 | if remote locking is turned off since the |
| 1144 | local vfs will do advisory */ |
| 1145 | if(vol->file_mode == (S_IALLUGO & ~(S_ISUID | S_IXGRP))) |
| 1146 | vol->file_mode = S_IALLUGO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | } else if (strnicmp(data, "setuids", 7) == 0) { |
| 1148 | vol->setuids = 1; |
| 1149 | } else if (strnicmp(data, "nosetuids", 9) == 0) { |
| 1150 | vol->setuids = 0; |
| 1151 | } else if (strnicmp(data, "nohard", 6) == 0) { |
| 1152 | vol->retry = 0; |
| 1153 | } else if (strnicmp(data, "nosoft", 6) == 0) { |
| 1154 | vol->retry = 1; |
| 1155 | } else if (strnicmp(data, "nointr", 6) == 0) { |
| 1156 | vol->intr = 0; |
| 1157 | } else if (strnicmp(data, "intr", 4) == 0) { |
| 1158 | vol->intr = 1; |
| 1159 | } else if (strnicmp(data, "serverino",7) == 0) { |
| 1160 | vol->server_ino = 1; |
| 1161 | } else if (strnicmp(data, "noserverino",9) == 0) { |
| 1162 | vol->server_ino = 0; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 1163 | } else if (strnicmp(data, "cifsacl",7) == 0) { |
| 1164 | vol->cifs_acl = 1; |
| 1165 | } else if (strnicmp(data, "nocifsacl", 9) == 0) { |
| 1166 | vol->cifs_acl = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1167 | } else if (strnicmp(data, "acl",3) == 0) { |
| 1168 | vol->no_psx_acl = 0; |
| 1169 | } else if (strnicmp(data, "noacl",5) == 0) { |
| 1170 | vol->no_psx_acl = 1; |
| 1171 | } else if (strnicmp(data, "direct",6) == 0) { |
| 1172 | vol->direct_io = 1; |
| 1173 | } else if (strnicmp(data, "forcedirectio",13) == 0) { |
| 1174 | vol->direct_io = 1; |
| 1175 | } else if (strnicmp(data, "in6_addr",8) == 0) { |
| 1176 | if (!value || !*value) { |
| 1177 | vol->in6_addr = NULL; |
| 1178 | } else if (strnlen(value, 49) == 48) { |
| 1179 | vol->in6_addr = value; |
| 1180 | } else { |
| 1181 | printk(KERN_WARNING "CIFS: ip v6 address not 48 characters long\n"); |
| 1182 | return 1; |
| 1183 | } |
| 1184 | } else if (strnicmp(data, "noac", 4) == 0) { |
| 1185 | printk(KERN_WARNING "CIFS: Mount option noac not supported. Instead set /proc/fs/cifs/LookupCacheEnabled to 0\n"); |
| 1186 | } else |
| 1187 | printk(KERN_WARNING "CIFS: Unknown mount option %s\n",data); |
| 1188 | } |
| 1189 | if (vol->UNC == NULL) { |
| 1190 | if(devname == NULL) { |
| 1191 | printk(KERN_WARNING "CIFS: Missing UNC name for mount target\n"); |
| 1192 | return 1; |
| 1193 | } |
| 1194 | if ((temp_len = strnlen(devname, 300)) < 300) { |
| 1195 | vol->UNC = kmalloc(temp_len+1,GFP_KERNEL); |
| 1196 | if(vol->UNC == NULL) |
| 1197 | return 1; |
| 1198 | strcpy(vol->UNC,devname); |
| 1199 | if (strncmp(vol->UNC, "//", 2) == 0) { |
| 1200 | vol->UNC[0] = '\\'; |
| 1201 | vol->UNC[1] = '\\'; |
| 1202 | } else if (strncmp(vol->UNC, "\\\\", 2) != 0) { |
| 1203 | printk(KERN_WARNING "CIFS: UNC Path does not begin with // or \\\\ \n"); |
| 1204 | return 1; |
| 1205 | } |
| 1206 | } else { |
| 1207 | printk(KERN_WARNING "CIFS: UNC name too long\n"); |
| 1208 | return 1; |
| 1209 | } |
| 1210 | } |
| 1211 | if(vol->UNCip == NULL) |
| 1212 | vol->UNCip = &vol->UNC[2]; |
| 1213 | |
| 1214 | return 0; |
| 1215 | } |
| 1216 | |
| 1217 | static struct cifsSesInfo * |
| 1218 | cifs_find_tcp_session(struct in_addr * target_ip_addr, |
| 1219 | struct in6_addr *target_ip6_addr, |
| 1220 | char *userName, struct TCP_Server_Info **psrvTcp) |
| 1221 | { |
| 1222 | struct list_head *tmp; |
| 1223 | struct cifsSesInfo *ses; |
| 1224 | *psrvTcp = NULL; |
| 1225 | read_lock(&GlobalSMBSeslock); |
| 1226 | |
| 1227 | list_for_each(tmp, &GlobalSMBSessionList) { |
| 1228 | ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); |
| 1229 | if (ses->server) { |
| 1230 | if((target_ip_addr && |
| 1231 | (ses->server->addr.sockAddr.sin_addr.s_addr |
| 1232 | == target_ip_addr->s_addr)) || (target_ip6_addr |
| 1233 | && memcmp(&ses->server->addr.sockAddr6.sin6_addr, |
| 1234 | target_ip6_addr,sizeof(*target_ip6_addr)))){ |
| 1235 | /* BB lock server and tcp session and increment use count here?? */ |
| 1236 | *psrvTcp = ses->server; /* found a match on the TCP session */ |
| 1237 | /* BB check if reconnection needed */ |
| 1238 | if (strncmp |
| 1239 | (ses->userName, userName, |
| 1240 | MAX_USERNAME_SIZE) == 0){ |
| 1241 | read_unlock(&GlobalSMBSeslock); |
| 1242 | return ses; /* found exact match on both tcp and SMB sessions */ |
| 1243 | } |
| 1244 | } |
| 1245 | } |
| 1246 | /* else tcp and smb sessions need reconnection */ |
| 1247 | } |
| 1248 | read_unlock(&GlobalSMBSeslock); |
| 1249 | return NULL; |
| 1250 | } |
| 1251 | |
| 1252 | static struct cifsTconInfo * |
| 1253 | find_unc(__be32 new_target_ip_addr, char *uncName, char *userName) |
| 1254 | { |
| 1255 | struct list_head *tmp; |
| 1256 | struct cifsTconInfo *tcon; |
| 1257 | |
| 1258 | read_lock(&GlobalSMBSeslock); |
| 1259 | list_for_each(tmp, &GlobalTreeConnectionList) { |
| 1260 | cFYI(1, ("Next tcon - ")); |
| 1261 | tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); |
| 1262 | if (tcon->ses) { |
| 1263 | if (tcon->ses->server) { |
| 1264 | cFYI(1, |
| 1265 | (" old ip addr: %x == new ip %x ?", |
| 1266 | tcon->ses->server->addr.sockAddr.sin_addr. |
| 1267 | s_addr, new_target_ip_addr)); |
| 1268 | if (tcon->ses->server->addr.sockAddr.sin_addr. |
| 1269 | s_addr == new_target_ip_addr) { |
| 1270 | /* BB lock tcon and server and tcp session and increment use count here? */ |
| 1271 | /* found a match on the TCP session */ |
| 1272 | /* BB check if reconnection needed */ |
| 1273 | cFYI(1,("Matched ip, old UNC: %s == new: %s ?", |
| 1274 | tcon->treeName, uncName)); |
| 1275 | if (strncmp |
| 1276 | (tcon->treeName, uncName, |
| 1277 | MAX_TREE_SIZE) == 0) { |
| 1278 | cFYI(1, |
| 1279 | ("Matched UNC, old user: %s == new: %s ?", |
| 1280 | tcon->treeName, uncName)); |
| 1281 | if (strncmp |
| 1282 | (tcon->ses->userName, |
| 1283 | userName, |
| 1284 | MAX_USERNAME_SIZE) == 0) { |
| 1285 | read_unlock(&GlobalSMBSeslock); |
| 1286 | return tcon;/* also matched user (smb session)*/ |
| 1287 | } |
| 1288 | } |
| 1289 | } |
| 1290 | } |
| 1291 | } |
| 1292 | } |
| 1293 | read_unlock(&GlobalSMBSeslock); |
| 1294 | return NULL; |
| 1295 | } |
| 1296 | |
| 1297 | int |
| 1298 | connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1299 | const char *old_path, const struct nls_table *nls_codepage, |
| 1300 | int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | { |
| 1302 | unsigned char *referrals = NULL; |
| 1303 | unsigned int num_referrals; |
| 1304 | int rc = 0; |
| 1305 | |
| 1306 | rc = get_dfs_path(xid, pSesInfo,old_path, nls_codepage, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1307 | &num_referrals, &referrals, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | |
| 1309 | /* BB Add in code to: if valid refrl, if not ip address contact |
| 1310 | the helper that resolves tcp names, mount to it, try to |
| 1311 | tcon to it unmount it if fail */ |
| 1312 | |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1313 | kfree(referrals); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | |
| 1315 | return rc; |
| 1316 | } |
| 1317 | |
| 1318 | int |
| 1319 | get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, |
| 1320 | const char *old_path, const struct nls_table *nls_codepage, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1321 | unsigned int *pnum_referrals, |
| 1322 | unsigned char ** preferrals, int remap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | { |
| 1324 | char *temp_unc; |
| 1325 | int rc = 0; |
| 1326 | |
| 1327 | *pnum_referrals = 0; |
| 1328 | |
| 1329 | if (pSesInfo->ipc_tid == 0) { |
| 1330 | temp_unc = kmalloc(2 /* for slashes */ + |
| 1331 | strnlen(pSesInfo->serverName,SERVER_NAME_LEN_WITH_NULL * 2) |
| 1332 | + 1 + 4 /* slash IPC$ */ + 2, |
| 1333 | GFP_KERNEL); |
| 1334 | if (temp_unc == NULL) |
| 1335 | return -ENOMEM; |
| 1336 | temp_unc[0] = '\\'; |
| 1337 | temp_unc[1] = '\\'; |
| 1338 | strcpy(temp_unc + 2, pSesInfo->serverName); |
| 1339 | strcpy(temp_unc + 2 + strlen(pSesInfo->serverName), "\\IPC$"); |
| 1340 | rc = CIFSTCon(xid, pSesInfo, temp_unc, NULL, nls_codepage); |
| 1341 | cFYI(1, |
| 1342 | ("CIFS Tcon rc = %d ipc_tid = %d", rc,pSesInfo->ipc_tid)); |
| 1343 | kfree(temp_unc); |
| 1344 | } |
| 1345 | if (rc == 0) |
| 1346 | rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals, |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1347 | pnum_referrals, nls_codepage, remap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | |
| 1349 | return rc; |
| 1350 | } |
| 1351 | |
| 1352 | /* See RFC1001 section 14 on representation of Netbios names */ |
| 1353 | static void rfc1002mangle(char * target,char * source, unsigned int length) |
| 1354 | { |
| 1355 | unsigned int i,j; |
| 1356 | |
| 1357 | for(i=0,j=0;i<(length);i++) { |
| 1358 | /* mask a nibble at a time and encode */ |
| 1359 | target[j] = 'A' + (0x0F & (source[i] >> 4)); |
| 1360 | target[j+1] = 'A' + (0x0F & source[i]); |
| 1361 | j+=2; |
| 1362 | } |
| 1363 | |
| 1364 | } |
| 1365 | |
| 1366 | |
| 1367 | static int |
| 1368 | ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 1369 | char * netbios_name, char * target_name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1370 | { |
| 1371 | int rc = 0; |
| 1372 | int connected = 0; |
| 1373 | __be16 orig_port = 0; |
| 1374 | |
| 1375 | if(*csocket == NULL) { |
| 1376 | rc = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, csocket); |
| 1377 | if (rc < 0) { |
| 1378 | cERROR(1, ("Error %d creating socket",rc)); |
| 1379 | *csocket = NULL; |
| 1380 | return rc; |
| 1381 | } else { |
| 1382 | /* BB other socket options to set KEEPALIVE, NODELAY? */ |
| 1383 | cFYI(1,("Socket created")); |
| 1384 | (*csocket)->sk->sk_allocation = GFP_NOFS; |
| 1385 | } |
| 1386 | } |
| 1387 | |
| 1388 | psin_server->sin_family = AF_INET; |
| 1389 | if(psin_server->sin_port) { /* user overrode default port */ |
| 1390 | rc = (*csocket)->ops->connect(*csocket, |
| 1391 | (struct sockaddr *) psin_server, |
| 1392 | sizeof (struct sockaddr_in),0); |
| 1393 | if (rc >= 0) |
| 1394 | connected = 1; |
| 1395 | } |
| 1396 | |
| 1397 | if(!connected) { |
| 1398 | /* save original port so we can retry user specified port |
| 1399 | later if fall back ports fail this time */ |
| 1400 | orig_port = psin_server->sin_port; |
| 1401 | |
| 1402 | /* do not retry on the same port we just failed on */ |
| 1403 | if(psin_server->sin_port != htons(CIFS_PORT)) { |
| 1404 | psin_server->sin_port = htons(CIFS_PORT); |
| 1405 | |
| 1406 | rc = (*csocket)->ops->connect(*csocket, |
| 1407 | (struct sockaddr *) psin_server, |
| 1408 | sizeof (struct sockaddr_in),0); |
| 1409 | if (rc >= 0) |
| 1410 | connected = 1; |
| 1411 | } |
| 1412 | } |
| 1413 | if (!connected) { |
| 1414 | psin_server->sin_port = htons(RFC1001_PORT); |
| 1415 | rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) |
| 1416 | psin_server, sizeof (struct sockaddr_in),0); |
| 1417 | if (rc >= 0) |
| 1418 | connected = 1; |
| 1419 | } |
| 1420 | |
| 1421 | /* give up here - unless we want to retry on different |
| 1422 | protocol families some day */ |
| 1423 | if (!connected) { |
| 1424 | if(orig_port) |
| 1425 | psin_server->sin_port = orig_port; |
| 1426 | cFYI(1,("Error %d connecting to server via ipv4",rc)); |
| 1427 | sock_release(*csocket); |
| 1428 | *csocket = NULL; |
| 1429 | return rc; |
| 1430 | } |
| 1431 | /* Eventually check for other socket options to change from |
| 1432 | the default. sock_setsockopt not used because it expects |
| 1433 | user space buffer */ |
Steve French | b387eae | 2005-10-10 14:21:15 -0700 | [diff] [blame] | 1434 | cFYI(1,("sndbuf %d rcvbuf %d rcvtimeo 0x%lx",(*csocket)->sk->sk_sndbuf, |
| 1435 | (*csocket)->sk->sk_rcvbuf, (*csocket)->sk->sk_rcvtimeo)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | (*csocket)->sk->sk_rcvtimeo = 7 * HZ; |
Steve French | b387eae | 2005-10-10 14:21:15 -0700 | [diff] [blame] | 1437 | /* make the bufsizes depend on wsize/rsize and max requests */ |
| 1438 | if((*csocket)->sk->sk_sndbuf < (200 * 1024)) |
| 1439 | (*csocket)->sk->sk_sndbuf = 200 * 1024; |
| 1440 | if((*csocket)->sk->sk_rcvbuf < (140 * 1024)) |
| 1441 | (*csocket)->sk->sk_rcvbuf = 140 * 1024; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | |
| 1443 | /* send RFC1001 sessinit */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1444 | if(psin_server->sin_port == htons(RFC1001_PORT)) { |
| 1445 | /* some servers require RFC1001 sessinit before sending |
| 1446 | negprot - BB check reconnection in case where second |
| 1447 | sessinit is sent but no second negprot */ |
| 1448 | struct rfc1002_session_packet * ses_init_buf; |
| 1449 | struct smb_hdr * smb_buf; |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 1450 | ses_init_buf = kzalloc(sizeof(struct rfc1002_session_packet), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | if(ses_init_buf) { |
| 1452 | ses_init_buf->trailer.session_req.called_len = 32; |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 1453 | if(target_name && (target_name[0] != 0)) { |
| 1454 | rfc1002mangle(ses_init_buf->trailer.session_req.called_name, |
| 1455 | target_name, 16); |
| 1456 | } else { |
| 1457 | rfc1002mangle(ses_init_buf->trailer.session_req.called_name, |
| 1458 | DEFAULT_CIFS_CALLED_NAME,16); |
| 1459 | } |
| 1460 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | ses_init_buf->trailer.session_req.calling_len = 32; |
| 1462 | /* calling name ends in null (byte 16) from old smb |
| 1463 | convention. */ |
| 1464 | if(netbios_name && (netbios_name[0] !=0)) { |
| 1465 | rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, |
| 1466 | netbios_name,16); |
| 1467 | } else { |
| 1468 | rfc1002mangle(ses_init_buf->trailer.session_req.calling_name, |
| 1469 | "LINUX_CIFS_CLNT",16); |
| 1470 | } |
| 1471 | ses_init_buf->trailer.session_req.scope1 = 0; |
| 1472 | ses_init_buf->trailer.session_req.scope2 = 0; |
| 1473 | smb_buf = (struct smb_hdr *)ses_init_buf; |
| 1474 | /* sizeof RFC1002_SESSION_REQUEST with no scope */ |
| 1475 | smb_buf->smb_buf_length = 0x81000044; |
| 1476 | rc = smb_send(*csocket, smb_buf, 0x44, |
| 1477 | (struct sockaddr *)psin_server); |
| 1478 | kfree(ses_init_buf); |
Steve French | 083d3a2 | 2006-03-03 09:53:36 +0000 | [diff] [blame] | 1479 | msleep(1); /* RFC1001 layer in at least one server |
| 1480 | requires very short break before negprot |
| 1481 | presumably because not expecting negprot |
| 1482 | to follow so fast. This is a simple |
| 1483 | solution that works without |
| 1484 | complicating the code and causes no |
| 1485 | significant slowing down on mount |
| 1486 | for everyone else */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | } |
| 1488 | /* else the negprot may still work without this |
| 1489 | even though malloc failed */ |
| 1490 | |
| 1491 | } |
| 1492 | |
| 1493 | return rc; |
| 1494 | } |
| 1495 | |
| 1496 | static int |
| 1497 | ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket) |
| 1498 | { |
| 1499 | int rc = 0; |
| 1500 | int connected = 0; |
| 1501 | __be16 orig_port = 0; |
| 1502 | |
| 1503 | if(*csocket == NULL) { |
| 1504 | rc = sock_create_kern(PF_INET6, SOCK_STREAM, IPPROTO_TCP, csocket); |
| 1505 | if (rc < 0) { |
| 1506 | cERROR(1, ("Error %d creating ipv6 socket",rc)); |
| 1507 | *csocket = NULL; |
| 1508 | return rc; |
| 1509 | } else { |
| 1510 | /* BB other socket options to set KEEPALIVE, NODELAY? */ |
| 1511 | cFYI(1,("ipv6 Socket created")); |
| 1512 | (*csocket)->sk->sk_allocation = GFP_NOFS; |
| 1513 | } |
| 1514 | } |
| 1515 | |
| 1516 | psin_server->sin6_family = AF_INET6; |
| 1517 | |
| 1518 | if(psin_server->sin6_port) { /* user overrode default port */ |
| 1519 | rc = (*csocket)->ops->connect(*csocket, |
| 1520 | (struct sockaddr *) psin_server, |
| 1521 | sizeof (struct sockaddr_in6),0); |
| 1522 | if (rc >= 0) |
| 1523 | connected = 1; |
| 1524 | } |
| 1525 | |
| 1526 | if(!connected) { |
| 1527 | /* save original port so we can retry user specified port |
| 1528 | later if fall back ports fail this time */ |
| 1529 | |
| 1530 | orig_port = psin_server->sin6_port; |
| 1531 | /* do not retry on the same port we just failed on */ |
| 1532 | if(psin_server->sin6_port != htons(CIFS_PORT)) { |
| 1533 | psin_server->sin6_port = htons(CIFS_PORT); |
| 1534 | |
| 1535 | rc = (*csocket)->ops->connect(*csocket, |
| 1536 | (struct sockaddr *) psin_server, |
| 1537 | sizeof (struct sockaddr_in6),0); |
| 1538 | if (rc >= 0) |
| 1539 | connected = 1; |
| 1540 | } |
| 1541 | } |
| 1542 | if (!connected) { |
| 1543 | psin_server->sin6_port = htons(RFC1001_PORT); |
| 1544 | rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *) |
| 1545 | psin_server, sizeof (struct sockaddr_in6),0); |
| 1546 | if (rc >= 0) |
| 1547 | connected = 1; |
| 1548 | } |
| 1549 | |
| 1550 | /* give up here - unless we want to retry on different |
| 1551 | protocol families some day */ |
| 1552 | if (!connected) { |
| 1553 | if(orig_port) |
| 1554 | psin_server->sin6_port = orig_port; |
| 1555 | cFYI(1,("Error %d connecting to server via ipv6",rc)); |
| 1556 | sock_release(*csocket); |
| 1557 | *csocket = NULL; |
| 1558 | return rc; |
| 1559 | } |
| 1560 | /* Eventually check for other socket options to change from |
| 1561 | the default. sock_setsockopt not used because it expects |
| 1562 | user space buffer */ |
| 1563 | (*csocket)->sk->sk_rcvtimeo = 7 * HZ; |
| 1564 | |
| 1565 | return rc; |
| 1566 | } |
| 1567 | |
| 1568 | int |
| 1569 | cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, |
| 1570 | char *mount_data, const char *devname) |
| 1571 | { |
| 1572 | int rc = 0; |
| 1573 | int xid; |
| 1574 | int address_type = AF_INET; |
| 1575 | struct socket *csocket = NULL; |
| 1576 | struct sockaddr_in sin_server; |
| 1577 | struct sockaddr_in6 sin_server6; |
| 1578 | struct smb_vol volume_info; |
| 1579 | struct cifsSesInfo *pSesInfo = NULL; |
| 1580 | struct cifsSesInfo *existingCifsSes = NULL; |
| 1581 | struct cifsTconInfo *tcon = NULL; |
| 1582 | struct TCP_Server_Info *srvTcp = NULL; |
| 1583 | |
| 1584 | xid = GetXid(); |
| 1585 | |
| 1586 | /* cFYI(1, ("Entering cifs_mount. Xid: %d with: %s", xid, mount_data)); */ |
| 1587 | |
| 1588 | memset(&volume_info,0,sizeof(struct smb_vol)); |
| 1589 | if (cifs_parse_mount_options(mount_data, devname, &volume_info)) { |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1590 | kfree(volume_info.UNC); |
| 1591 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | FreeXid(xid); |
| 1593 | return -EINVAL; |
| 1594 | } |
| 1595 | |
| 1596 | if (volume_info.username) { |
| 1597 | /* BB fixme parse for domain name here */ |
| 1598 | cFYI(1, ("Username: %s ", volume_info.username)); |
| 1599 | |
| 1600 | } else { |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 1601 | cifserror("No username specified"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | /* In userspace mount helper we can get user name from alternate |
| 1603 | locations such as env variables and files on disk */ |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1604 | kfree(volume_info.UNC); |
| 1605 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1606 | FreeXid(xid); |
| 1607 | return -EINVAL; |
| 1608 | } |
| 1609 | |
| 1610 | if (volume_info.UNCip && volume_info.UNC) { |
| 1611 | rc = cifs_inet_pton(AF_INET, volume_info.UNCip,&sin_server.sin_addr.s_addr); |
| 1612 | |
| 1613 | if(rc <= 0) { |
| 1614 | /* not ipv4 address, try ipv6 */ |
| 1615 | rc = cifs_inet_pton(AF_INET6,volume_info.UNCip,&sin_server6.sin6_addr.in6_u); |
| 1616 | if(rc > 0) |
| 1617 | address_type = AF_INET6; |
| 1618 | } else { |
| 1619 | address_type = AF_INET; |
| 1620 | } |
| 1621 | |
| 1622 | if(rc <= 0) { |
| 1623 | /* we failed translating address */ |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1624 | kfree(volume_info.UNC); |
| 1625 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1626 | FreeXid(xid); |
| 1627 | return -EINVAL; |
| 1628 | } |
| 1629 | |
| 1630 | cFYI(1, ("UNC: %s ip: %s", volume_info.UNC, volume_info.UNCip)); |
| 1631 | /* success */ |
| 1632 | rc = 0; |
| 1633 | } else if (volume_info.UNCip){ |
| 1634 | /* BB using ip addr as server name connect to the DFS root below */ |
| 1635 | cERROR(1,("Connecting to DFS root not implemented yet")); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1636 | kfree(volume_info.UNC); |
| 1637 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | FreeXid(xid); |
| 1639 | return -EINVAL; |
| 1640 | } else /* which servers DFS root would we conect to */ { |
| 1641 | cERROR(1, |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 1642 | ("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified")); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1643 | kfree(volume_info.UNC); |
| 1644 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | FreeXid(xid); |
| 1646 | return -EINVAL; |
| 1647 | } |
| 1648 | |
| 1649 | /* this is needed for ASCII cp to Unicode converts */ |
| 1650 | if(volume_info.iocharset == NULL) { |
| 1651 | cifs_sb->local_nls = load_nls_default(); |
| 1652 | /* load_nls_default can not return null */ |
| 1653 | } else { |
| 1654 | cifs_sb->local_nls = load_nls(volume_info.iocharset); |
| 1655 | if(cifs_sb->local_nls == NULL) { |
| 1656 | cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset)); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1657 | kfree(volume_info.UNC); |
| 1658 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | FreeXid(xid); |
| 1660 | return -ELIBACC; |
| 1661 | } |
| 1662 | } |
| 1663 | |
| 1664 | if(address_type == AF_INET) |
| 1665 | existingCifsSes = cifs_find_tcp_session(&sin_server.sin_addr, |
| 1666 | NULL /* no ipv6 addr */, |
| 1667 | volume_info.username, &srvTcp); |
| 1668 | else if(address_type == AF_INET6) |
| 1669 | existingCifsSes = cifs_find_tcp_session(NULL /* no ipv4 addr */, |
| 1670 | &sin_server6.sin6_addr, |
| 1671 | volume_info.username, &srvTcp); |
| 1672 | else { |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1673 | kfree(volume_info.UNC); |
| 1674 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1675 | FreeXid(xid); |
| 1676 | return -EINVAL; |
| 1677 | } |
| 1678 | |
| 1679 | |
| 1680 | if (srvTcp) { |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 1681 | cFYI(1, ("Existing tcp session with server found")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | } else { /* create socket */ |
| 1683 | if(volume_info.port) |
| 1684 | sin_server.sin_port = htons(volume_info.port); |
| 1685 | else |
| 1686 | sin_server.sin_port = 0; |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 1687 | rc = ipv4_connect(&sin_server,&csocket, |
| 1688 | volume_info.source_rfc1001_name, |
| 1689 | volume_info.target_rfc1001_name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | if (rc < 0) { |
| 1691 | cERROR(1, |
| 1692 | ("Error connecting to IPv4 socket. Aborting operation")); |
| 1693 | if(csocket != NULL) |
| 1694 | sock_release(csocket); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1695 | kfree(volume_info.UNC); |
| 1696 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | FreeXid(xid); |
| 1698 | return rc; |
| 1699 | } |
| 1700 | |
| 1701 | srvTcp = kmalloc(sizeof (struct TCP_Server_Info), GFP_KERNEL); |
| 1702 | if (srvTcp == NULL) { |
| 1703 | rc = -ENOMEM; |
| 1704 | sock_release(csocket); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1705 | kfree(volume_info.UNC); |
| 1706 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | FreeXid(xid); |
| 1708 | return rc; |
| 1709 | } else { |
| 1710 | memset(srvTcp, 0, sizeof (struct TCP_Server_Info)); |
| 1711 | memcpy(&srvTcp->addr.sockAddr, &sin_server, sizeof (struct sockaddr_in)); |
| 1712 | atomic_set(&srvTcp->inFlight,0); |
| 1713 | /* BB Add code for ipv6 case too */ |
| 1714 | srvTcp->ssocket = csocket; |
| 1715 | srvTcp->protocolType = IPV4; |
| 1716 | init_waitqueue_head(&srvTcp->response_q); |
| 1717 | init_waitqueue_head(&srvTcp->request_q); |
| 1718 | INIT_LIST_HEAD(&srvTcp->pending_mid_q); |
| 1719 | /* at this point we are the only ones with the pointer |
| 1720 | to the struct since the kernel thread not created yet |
| 1721 | so no need to spinlock this init of tcpStatus */ |
| 1722 | srvTcp->tcpStatus = CifsNew; |
| 1723 | init_MUTEX(&srvTcp->tcpSem); |
| 1724 | rc = (int)kernel_thread((void *)(void *)cifs_demultiplex_thread, srvTcp, |
| 1725 | CLONE_FS | CLONE_FILES | CLONE_VM); |
| 1726 | if(rc < 0) { |
| 1727 | rc = -ENOMEM; |
| 1728 | sock_release(csocket); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1729 | kfree(volume_info.UNC); |
| 1730 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1731 | FreeXid(xid); |
| 1732 | return rc; |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 1733 | } |
| 1734 | wait_for_completion(&cifsd_complete); |
| 1735 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | memcpy(srvTcp->workstation_RFC1001_name, volume_info.source_rfc1001_name,16); |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 1737 | memcpy(srvTcp->server_RFC1001_name, volume_info.target_rfc1001_name,16); |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 1738 | srvTcp->sequence_number = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1739 | } |
| 1740 | } |
| 1741 | |
| 1742 | if (existingCifsSes) { |
| 1743 | pSesInfo = existingCifsSes; |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 1744 | cFYI(1, ("Existing smb sess found")); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1745 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | /* volume_info.UNC freed at end of function */ |
| 1747 | } else if (!rc) { |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 1748 | cFYI(1, ("Existing smb sess not found")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | pSesInfo = sesInfoAlloc(); |
| 1750 | if (pSesInfo == NULL) |
| 1751 | rc = -ENOMEM; |
| 1752 | else { |
| 1753 | pSesInfo->server = srvTcp; |
| 1754 | sprintf(pSesInfo->serverName, "%u.%u.%u.%u", |
| 1755 | NIPQUAD(sin_server.sin_addr.s_addr)); |
| 1756 | } |
| 1757 | |
| 1758 | if (!rc){ |
| 1759 | /* volume_info.password freed at unmount */ |
| 1760 | if (volume_info.password) |
| 1761 | pSesInfo->password = volume_info.password; |
| 1762 | if (volume_info.username) |
| 1763 | strncpy(pSesInfo->userName, |
| 1764 | volume_info.username,MAX_USERNAME_SIZE); |
| 1765 | if (volume_info.domainname) |
| 1766 | strncpy(pSesInfo->domainName, |
| 1767 | volume_info.domainname,MAX_USERNAME_SIZE); |
| 1768 | pSesInfo->linux_uid = volume_info.linux_uid; |
| 1769 | down(&pSesInfo->sesSem); |
| 1770 | rc = cifs_setup_session(xid,pSesInfo, cifs_sb->local_nls); |
| 1771 | up(&pSesInfo->sesSem); |
| 1772 | if(!rc) |
| 1773 | atomic_inc(&srvTcp->socketUseCount); |
| 1774 | } else |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1775 | kfree(volume_info.password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | } |
| 1777 | |
| 1778 | /* search for existing tcon to this server share */ |
| 1779 | if (!rc) { |
Steve French | 0ae0efa | 2005-10-10 10:57:19 -0700 | [diff] [blame] | 1780 | if(volume_info.rsize > CIFSMaxBufSize) { |
| 1781 | cERROR(1,("rsize %d too large, using MaxBufSize", |
| 1782 | volume_info.rsize)); |
| 1783 | cifs_sb->rsize = CIFSMaxBufSize; |
| 1784 | } else if((volume_info.rsize) && (volume_info.rsize <= CIFSMaxBufSize)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1785 | cifs_sb->rsize = volume_info.rsize; |
Steve French | 0ae0efa | 2005-10-10 10:57:19 -0700 | [diff] [blame] | 1786 | else /* default */ |
| 1787 | cifs_sb->rsize = CIFSMaxBufSize; |
| 1788 | |
| 1789 | if(volume_info.wsize > PAGEVEC_SIZE * PAGE_CACHE_SIZE) { |
| 1790 | cERROR(1,("wsize %d too large using 4096 instead", |
| 1791 | volume_info.wsize)); |
| 1792 | cifs_sb->wsize = 4096; |
| 1793 | } else if(volume_info.wsize) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | cifs_sb->wsize = volume_info.wsize; |
| 1795 | else |
Steve French | 17cbbaf | 2006-01-24 20:26:48 -0800 | [diff] [blame] | 1796 | cifs_sb->wsize = |
Steve French | 1877c9e | 2006-01-27 18:36:11 -0800 | [diff] [blame] | 1797 | min_t(const int, PAGEVEC_SIZE * PAGE_CACHE_SIZE, |
| 1798 | 127*1024); |
Steve French | 17cbbaf | 2006-01-24 20:26:48 -0800 | [diff] [blame] | 1799 | /* old default of CIFSMaxBufSize was too small now |
| 1800 | that SMB Write2 can send multiple pages in kvec. |
| 1801 | RFC1001 does not describe what happens when frame |
| 1802 | bigger than 128K is sent so use that as max in |
| 1803 | conjunction with 52K kvec constraint on arch with 4K |
| 1804 | page size */ |
| 1805 | |
Steve French | 6cec2ae | 2006-02-22 17:31:52 -0600 | [diff] [blame] | 1806 | if(cifs_sb->rsize < 2048) { |
| 1807 | cifs_sb->rsize = 2048; |
| 1808 | /* Windows ME may prefer this */ |
| 1809 | cFYI(1,("readsize set to minimum 2048")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | } |
| 1811 | cifs_sb->mnt_uid = volume_info.linux_uid; |
| 1812 | cifs_sb->mnt_gid = volume_info.linux_gid; |
| 1813 | cifs_sb->mnt_file_mode = volume_info.file_mode; |
| 1814 | cifs_sb->mnt_dir_mode = volume_info.dir_mode; |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 1815 | cFYI(1,("file mode: 0x%x dir mode: 0x%x", |
| 1816 | cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1817 | |
| 1818 | if(volume_info.noperm) |
| 1819 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM; |
| 1820 | if(volume_info.setuids) |
| 1821 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SET_UID; |
| 1822 | if(volume_info.server_ino) |
| 1823 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM; |
Steve French | 6a0b482 | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 1824 | if(volume_info.remap) |
| 1825 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1826 | if(volume_info.no_xattr) |
| 1827 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR; |
Steve French | d7245c2 | 2005-07-14 18:25:12 -0500 | [diff] [blame] | 1828 | if(volume_info.sfu_emul) |
| 1829 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_UNX_EMUL; |
Steve French | c46fa8a | 2005-08-18 20:49:57 -0700 | [diff] [blame] | 1830 | if(volume_info.nobrl) |
| 1831 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_BRL; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 1832 | if(volume_info.cifs_acl) |
| 1833 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_CIFS_ACL; |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 1834 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1835 | if(volume_info.direct_io) { |
Steve French | c46fa8a | 2005-08-18 20:49:57 -0700 | [diff] [blame] | 1836 | cFYI(1,("mounting share using direct i/o")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO; |
| 1838 | } |
| 1839 | |
| 1840 | tcon = |
| 1841 | find_unc(sin_server.sin_addr.s_addr, volume_info.UNC, |
| 1842 | volume_info.username); |
| 1843 | if (tcon) { |
Steve French | bf82067 | 2005-12-01 22:32:42 -0800 | [diff] [blame] | 1844 | cFYI(1, ("Found match on UNC path")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1845 | /* we can have only one retry value for a connection |
| 1846 | to a share so for resources mounted more than once |
| 1847 | to the same server share the last value passed in |
| 1848 | for the retry flag is used */ |
| 1849 | tcon->retry = volume_info.retry; |
Steve French | d3485d3 | 2005-08-19 11:04:29 -0700 | [diff] [blame] | 1850 | tcon->nocase = volume_info.nocase; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1851 | } else { |
| 1852 | tcon = tconInfoAlloc(); |
| 1853 | if (tcon == NULL) |
| 1854 | rc = -ENOMEM; |
| 1855 | else { |
| 1856 | /* check for null share name ie connect to dfs root */ |
| 1857 | |
| 1858 | /* BB check if this works for exactly length three strings */ |
| 1859 | if ((strchr(volume_info.UNC + 3, '\\') == NULL) |
| 1860 | && (strchr(volume_info.UNC + 3, '/') == |
| 1861 | NULL)) { |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1862 | rc = connect_to_dfs_path(xid, pSesInfo, |
| 1863 | "", cifs_sb->local_nls, |
| 1864 | cifs_sb->mnt_cifs_flags & |
| 1865 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1866 | kfree(volume_info.UNC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1867 | FreeXid(xid); |
| 1868 | return -ENODEV; |
| 1869 | } else { |
| 1870 | rc = CIFSTCon(xid, pSesInfo, |
| 1871 | volume_info.UNC, |
| 1872 | tcon, cifs_sb->local_nls); |
| 1873 | cFYI(1, ("CIFS Tcon rc = %d", rc)); |
| 1874 | } |
| 1875 | if (!rc) { |
| 1876 | atomic_inc(&pSesInfo->inUse); |
| 1877 | tcon->retry = volume_info.retry; |
Steve French | d3485d3 | 2005-08-19 11:04:29 -0700 | [diff] [blame] | 1878 | tcon->nocase = volume_info.nocase; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1879 | } |
| 1880 | } |
| 1881 | } |
| 1882 | } |
| 1883 | if(pSesInfo) { |
| 1884 | if (pSesInfo->capabilities & CAP_LARGE_FILES) { |
| 1885 | sb->s_maxbytes = (u64) 1 << 63; |
| 1886 | } else |
| 1887 | sb->s_maxbytes = (u64) 1 << 31; /* 2 GB */ |
| 1888 | } |
| 1889 | |
| 1890 | sb->s_time_gran = 100; |
| 1891 | |
| 1892 | /* on error free sesinfo and tcon struct if needed */ |
| 1893 | if (rc) { |
| 1894 | /* if session setup failed, use count is zero but |
| 1895 | we still need to free cifsd thread */ |
| 1896 | if(atomic_read(&srvTcp->socketUseCount) == 0) { |
| 1897 | spin_lock(&GlobalMid_Lock); |
| 1898 | srvTcp->tcpStatus = CifsExiting; |
| 1899 | spin_unlock(&GlobalMid_Lock); |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 1900 | if(srvTcp->tsk) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1901 | send_sig(SIGKILL,srvTcp->tsk,1); |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 1902 | wait_for_completion(&cifsd_complete); |
| 1903 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1904 | } |
| 1905 | /* If find_unc succeeded then rc == 0 so we can not end */ |
| 1906 | if (tcon) /* up accidently freeing someone elses tcon struct */ |
| 1907 | tconInfoFree(tcon); |
| 1908 | if (existingCifsSes == NULL) { |
| 1909 | if (pSesInfo) { |
| 1910 | if ((pSesInfo->server) && |
| 1911 | (pSesInfo->status == CifsGood)) { |
| 1912 | int temp_rc; |
| 1913 | temp_rc = CIFSSMBLogoff(xid, pSesInfo); |
| 1914 | /* if the socketUseCount is now zero */ |
| 1915 | if((temp_rc == -ESHUTDOWN) && |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 1916 | (pSesInfo->server->tsk)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1917 | send_sig(SIGKILL,pSesInfo->server->tsk,1); |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 1918 | wait_for_completion(&cifsd_complete); |
| 1919 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | } else |
| 1921 | cFYI(1, ("No session or bad tcon")); |
| 1922 | sesInfoFree(pSesInfo); |
| 1923 | /* pSesInfo = NULL; */ |
| 1924 | } |
| 1925 | } |
| 1926 | } else { |
| 1927 | atomic_inc(&tcon->useCount); |
| 1928 | cifs_sb->tcon = tcon; |
| 1929 | tcon->ses = pSesInfo; |
| 1930 | |
Steve French | 82940a4 | 2006-03-02 03:24:57 +0000 | [diff] [blame] | 1931 | /* do not care if following two calls succeed - informational */ |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1932 | CIFSSMBQFSDeviceInfo(xid, tcon); |
| 1933 | CIFSSMBQFSAttributeInfo(xid, tcon); |
Steve French | 82940a4 | 2006-03-02 03:24:57 +0000 | [diff] [blame] | 1934 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1935 | if (tcon->ses->capabilities & CAP_UNIX) { |
Steve French | 737b758 | 2005-04-28 22:41:06 -0700 | [diff] [blame] | 1936 | if(!CIFSSMBQFSUnixInfo(xid, tcon)) { |
Steve French | 82940a4 | 2006-03-02 03:24:57 +0000 | [diff] [blame] | 1937 | __u64 cap = |
| 1938 | le64_to_cpu(tcon->fsUnixInfo.Capability); |
| 1939 | cap &= CIFS_UNIX_CAP_MASK; |
| 1940 | if(volume_info.no_psx_acl) |
| 1941 | cap &= ~CIFS_UNIX_POSIX_ACL_CAP; |
| 1942 | else if(CIFS_UNIX_POSIX_ACL_CAP & cap) { |
| 1943 | cFYI(1,("negotiated posix acl support")); |
| 1944 | sb->s_flags |= MS_POSIXACL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1945 | } |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 1946 | |
Steve French | 82940a4 | 2006-03-02 03:24:57 +0000 | [diff] [blame] | 1947 | if(volume_info.posix_paths == 0) |
| 1948 | cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP; |
| 1949 | else if(cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) { |
| 1950 | cFYI(1,("negotiate posix pathnames")); |
| 1951 | cifs_sb->mnt_cifs_flags |= |
| 1952 | CIFS_MOUNT_POSIX_PATHS; |
| 1953 | } |
| 1954 | |
| 1955 | cFYI(1,("Negotiate caps 0x%x",(int)cap)); |
| 1956 | |
| 1957 | if (CIFSSMBSetFSUnixInfo(xid, tcon, cap)) { |
| 1958 | cFYI(1,("setting capabilities failed")); |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 1959 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1960 | } |
| 1961 | } |
Steve French | 3e84469 | 2005-10-03 13:37:24 -0700 | [diff] [blame] | 1962 | if (!(tcon->ses->capabilities & CAP_LARGE_WRITE_X)) |
| 1963 | cifs_sb->wsize = min(cifs_sb->wsize, |
| 1964 | (tcon->ses->server->maxBuf - |
| 1965 | MAX_CIFS_HDR_SIZE)); |
Steve French | 0ae0efa | 2005-10-10 10:57:19 -0700 | [diff] [blame] | 1966 | if (!(tcon->ses->capabilities & CAP_LARGE_READ_X)) |
| 1967 | cifs_sb->rsize = min(cifs_sb->rsize, |
| 1968 | (tcon->ses->server->maxBuf - |
| 1969 | MAX_CIFS_HDR_SIZE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1970 | } |
| 1971 | |
| 1972 | /* volume_info.password is freed above when existing session found |
| 1973 | (in which case it is not needed anymore) but when new sesion is created |
| 1974 | the password ptr is put in the new session structure (in which case the |
| 1975 | password will be freed at unmount time) */ |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 1976 | kfree(volume_info.UNC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1977 | FreeXid(xid); |
| 1978 | return rc; |
| 1979 | } |
| 1980 | |
| 1981 | static int |
| 1982 | CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses, |
| 1983 | char session_key[CIFS_SESSION_KEY_SIZE], |
| 1984 | const struct nls_table *nls_codepage) |
| 1985 | { |
| 1986 | struct smb_hdr *smb_buffer; |
| 1987 | struct smb_hdr *smb_buffer_response; |
| 1988 | SESSION_SETUP_ANDX *pSMB; |
| 1989 | SESSION_SETUP_ANDX *pSMBr; |
| 1990 | char *bcc_ptr; |
| 1991 | char *user; |
| 1992 | char *domain; |
| 1993 | int rc = 0; |
| 1994 | int remaining_words = 0; |
| 1995 | int bytes_returned = 0; |
| 1996 | int len; |
| 1997 | __u32 capabilities; |
| 1998 | __u16 count; |
| 1999 | |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 2000 | cFYI(1, ("In sesssetup")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2001 | if(ses == NULL) |
| 2002 | return -EINVAL; |
| 2003 | user = ses->userName; |
| 2004 | domain = ses->domainName; |
| 2005 | smb_buffer = cifs_buf_get(); |
| 2006 | if (smb_buffer == NULL) { |
| 2007 | return -ENOMEM; |
| 2008 | } |
| 2009 | smb_buffer_response = smb_buffer; |
| 2010 | pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer; |
| 2011 | |
| 2012 | /* send SMBsessionSetup here */ |
| 2013 | header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, |
| 2014 | NULL /* no tCon exists yet */ , 13 /* wct */ ); |
| 2015 | |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 2016 | smb_buffer->Mid = GetNextMid(ses->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2017 | pSMB->req_no_secext.AndXCommand = 0xFF; |
| 2018 | pSMB->req_no_secext.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); |
| 2019 | pSMB->req_no_secext.MaxMpxCount = cpu_to_le16(ses->server->maxReq); |
| 2020 | |
| 2021 | if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 2022 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| 2023 | |
| 2024 | capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | |
| 2025 | CAP_LARGE_WRITE_X | CAP_LARGE_READ_X; |
| 2026 | if (ses->capabilities & CAP_UNICODE) { |
| 2027 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; |
| 2028 | capabilities |= CAP_UNICODE; |
| 2029 | } |
| 2030 | if (ses->capabilities & CAP_STATUS32) { |
| 2031 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
| 2032 | capabilities |= CAP_STATUS32; |
| 2033 | } |
| 2034 | if (ses->capabilities & CAP_DFS) { |
| 2035 | smb_buffer->Flags2 |= SMBFLG2_DFS; |
| 2036 | capabilities |= CAP_DFS; |
| 2037 | } |
| 2038 | pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities); |
| 2039 | |
| 2040 | pSMB->req_no_secext.CaseInsensitivePasswordLength = |
| 2041 | cpu_to_le16(CIFS_SESSION_KEY_SIZE); |
| 2042 | |
| 2043 | pSMB->req_no_secext.CaseSensitivePasswordLength = |
| 2044 | cpu_to_le16(CIFS_SESSION_KEY_SIZE); |
| 2045 | bcc_ptr = pByteArea(smb_buffer); |
| 2046 | memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE); |
| 2047 | bcc_ptr += CIFS_SESSION_KEY_SIZE; |
| 2048 | memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE); |
| 2049 | bcc_ptr += CIFS_SESSION_KEY_SIZE; |
| 2050 | |
| 2051 | if (ses->capabilities & CAP_UNICODE) { |
| 2052 | if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode */ |
| 2053 | *bcc_ptr = 0; |
| 2054 | bcc_ptr++; |
| 2055 | } |
| 2056 | if(user == NULL) |
| 2057 | bytes_returned = 0; /* skill null user */ |
| 2058 | else |
| 2059 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2060 | cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2061 | nls_codepage); |
| 2062 | /* convert number of 16 bit words to bytes */ |
| 2063 | bcc_ptr += 2 * bytes_returned; |
| 2064 | bcc_ptr += 2; /* trailing null */ |
| 2065 | if (domain == NULL) |
| 2066 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2067 | cifs_strtoUCS((__le16 *) bcc_ptr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2068 | "CIFS_LINUX_DOM", 32, nls_codepage); |
| 2069 | else |
| 2070 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2071 | cifs_strtoUCS((__le16 *) bcc_ptr, domain, 64, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2072 | nls_codepage); |
| 2073 | bcc_ptr += 2 * bytes_returned; |
| 2074 | bcc_ptr += 2; |
| 2075 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2076 | cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2077 | 32, nls_codepage); |
| 2078 | bcc_ptr += 2 * bytes_returned; |
| 2079 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2080 | cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2081 | 32, nls_codepage); |
| 2082 | bcc_ptr += 2 * bytes_returned; |
| 2083 | bcc_ptr += 2; |
| 2084 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2085 | cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2086 | 64, nls_codepage); |
| 2087 | bcc_ptr += 2 * bytes_returned; |
| 2088 | bcc_ptr += 2; |
| 2089 | } else { |
| 2090 | if(user != NULL) { |
| 2091 | strncpy(bcc_ptr, user, 200); |
| 2092 | bcc_ptr += strnlen(user, 200); |
| 2093 | } |
| 2094 | *bcc_ptr = 0; |
| 2095 | bcc_ptr++; |
| 2096 | if (domain == NULL) { |
| 2097 | strcpy(bcc_ptr, "CIFS_LINUX_DOM"); |
| 2098 | bcc_ptr += strlen("CIFS_LINUX_DOM") + 1; |
| 2099 | } else { |
| 2100 | strncpy(bcc_ptr, domain, 64); |
| 2101 | bcc_ptr += strnlen(domain, 64); |
| 2102 | *bcc_ptr = 0; |
| 2103 | bcc_ptr++; |
| 2104 | } |
| 2105 | strcpy(bcc_ptr, "Linux version "); |
| 2106 | bcc_ptr += strlen("Linux version "); |
| 2107 | strcpy(bcc_ptr, system_utsname.release); |
| 2108 | bcc_ptr += strlen(system_utsname.release) + 1; |
| 2109 | strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); |
| 2110 | bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; |
| 2111 | } |
| 2112 | count = (long) bcc_ptr - (long) pByteArea(smb_buffer); |
| 2113 | smb_buffer->smb_buf_length += count; |
| 2114 | pSMB->req_no_secext.ByteCount = cpu_to_le16(count); |
| 2115 | |
| 2116 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, |
| 2117 | &bytes_returned, 1); |
| 2118 | if (rc) { |
| 2119 | /* rc = map_smb_to_linux_error(smb_buffer_response); now done in SendReceive */ |
| 2120 | } else if ((smb_buffer_response->WordCount == 3) |
| 2121 | || (smb_buffer_response->WordCount == 4)) { |
| 2122 | __u16 action = le16_to_cpu(pSMBr->resp.Action); |
| 2123 | __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); |
| 2124 | if (action & GUEST_LOGIN) |
| 2125 | cFYI(1, (" Guest login")); /* do we want to mark SesInfo struct ? */ |
| 2126 | ses->Suid = smb_buffer_response->Uid; /* UID left in wire format (le) */ |
| 2127 | cFYI(1, ("UID = %d ", ses->Suid)); |
| 2128 | /* response can have either 3 or 4 word count - Samba sends 3 */ |
| 2129 | bcc_ptr = pByteArea(smb_buffer_response); |
| 2130 | if ((pSMBr->resp.hdr.WordCount == 3) |
| 2131 | || ((pSMBr->resp.hdr.WordCount == 4) |
| 2132 | && (blob_len < pSMBr->resp.ByteCount))) { |
| 2133 | if (pSMBr->resp.hdr.WordCount == 4) |
| 2134 | bcc_ptr += blob_len; |
| 2135 | |
| 2136 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { |
| 2137 | if ((long) (bcc_ptr) % 2) { |
| 2138 | remaining_words = |
| 2139 | (BCC(smb_buffer_response) - 1) /2; |
| 2140 | bcc_ptr++; /* Unicode strings must be word aligned */ |
| 2141 | } else { |
| 2142 | remaining_words = |
| 2143 | BCC(smb_buffer_response) / 2; |
| 2144 | } |
| 2145 | len = |
| 2146 | UniStrnlen((wchar_t *) bcc_ptr, |
| 2147 | remaining_words - 1); |
| 2148 | /* We look for obvious messed up bcc or strings in response so we do not go off |
| 2149 | the end since (at least) WIN2K and Windows XP have a major bug in not null |
| 2150 | terminating last Unicode string in response */ |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2151 | ses->serverOS = kzalloc(2 * (len + 1), GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2152 | if(ses->serverOS == NULL) |
| 2153 | goto sesssetup_nomem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2154 | cifs_strfromUCS_le(ses->serverOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2155 | (__le16 *)bcc_ptr, len,nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2156 | bcc_ptr += 2 * (len + 1); |
| 2157 | remaining_words -= len + 1; |
| 2158 | ses->serverOS[2 * len] = 0; |
| 2159 | ses->serverOS[1 + (2 * len)] = 0; |
| 2160 | if (remaining_words > 0) { |
| 2161 | len = UniStrnlen((wchar_t *)bcc_ptr, |
| 2162 | remaining_words-1); |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2163 | ses->serverNOS = kzalloc(2 * (len + 1),GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2164 | if(ses->serverNOS == NULL) |
| 2165 | goto sesssetup_nomem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2166 | cifs_strfromUCS_le(ses->serverNOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2167 | (__le16 *)bcc_ptr,len,nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2168 | bcc_ptr += 2 * (len + 1); |
| 2169 | ses->serverNOS[2 * len] = 0; |
| 2170 | ses->serverNOS[1 + (2 * len)] = 0; |
| 2171 | if(strncmp(ses->serverNOS, |
| 2172 | "NT LAN Manager 4",16) == 0) { |
| 2173 | cFYI(1,("NT4 server")); |
| 2174 | ses->flags |= CIFS_SES_NT4; |
| 2175 | } |
| 2176 | remaining_words -= len + 1; |
| 2177 | if (remaining_words > 0) { |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2178 | len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ |
| 2180 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2181 | kzalloc(2*(len+1),GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2182 | if(ses->serverDomain == NULL) |
| 2183 | goto sesssetup_nomem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2184 | cifs_strfromUCS_le(ses->serverDomain, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2185 | (__le16 *)bcc_ptr,len,nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2186 | bcc_ptr += 2 * (len + 1); |
| 2187 | ses->serverDomain[2*len] = 0; |
| 2188 | ses->serverDomain[1+(2*len)] = 0; |
| 2189 | } /* else no more room so create dummy domain string */ |
| 2190 | else |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2191 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2192 | kzalloc(2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2193 | } else { /* no room so create dummy domain and NOS string */ |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2194 | /* if these kcallocs fail not much we |
| 2195 | can do, but better to not fail the |
| 2196 | sesssetup itself */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2197 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2198 | kzalloc(2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2199 | ses->serverNOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2200 | kzalloc(2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2201 | } |
| 2202 | } else { /* ASCII */ |
| 2203 | len = strnlen(bcc_ptr, 1024); |
| 2204 | if (((long) bcc_ptr + len) - (long) |
| 2205 | pByteArea(smb_buffer_response) |
| 2206 | <= BCC(smb_buffer_response)) { |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2207 | ses->serverOS = kzalloc(len + 1,GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2208 | if(ses->serverOS == NULL) |
| 2209 | goto sesssetup_nomem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2210 | strncpy(ses->serverOS,bcc_ptr, len); |
| 2211 | |
| 2212 | bcc_ptr += len; |
| 2213 | bcc_ptr[0] = 0; /* null terminate the string */ |
| 2214 | bcc_ptr++; |
| 2215 | |
| 2216 | len = strnlen(bcc_ptr, 1024); |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2217 | ses->serverNOS = kzalloc(len + 1,GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2218 | if(ses->serverNOS == NULL) |
| 2219 | goto sesssetup_nomem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2220 | strncpy(ses->serverNOS, bcc_ptr, len); |
| 2221 | bcc_ptr += len; |
| 2222 | bcc_ptr[0] = 0; |
| 2223 | bcc_ptr++; |
| 2224 | |
| 2225 | len = strnlen(bcc_ptr, 1024); |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2226 | ses->serverDomain = kzalloc(len + 1,GFP_KERNEL); |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2227 | if(ses->serverDomain == NULL) |
| 2228 | goto sesssetup_nomem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2229 | strncpy(ses->serverDomain, bcc_ptr, len); |
| 2230 | bcc_ptr += len; |
| 2231 | bcc_ptr[0] = 0; |
| 2232 | bcc_ptr++; |
| 2233 | } else |
| 2234 | cFYI(1, |
| 2235 | ("Variable field of length %d extends beyond end of smb ", |
| 2236 | len)); |
| 2237 | } |
| 2238 | } else { |
| 2239 | cERROR(1, |
| 2240 | (" Security Blob Length extends beyond end of SMB")); |
| 2241 | } |
| 2242 | } else { |
| 2243 | cERROR(1, |
| 2244 | (" Invalid Word count %d: ", |
| 2245 | smb_buffer_response->WordCount)); |
| 2246 | rc = -EIO; |
| 2247 | } |
Steve French | 433dc24 | 2005-04-28 22:41:08 -0700 | [diff] [blame] | 2248 | sesssetup_nomem: /* do not return an error on nomem for the info strings, |
| 2249 | since that could make reconnection harder, and |
| 2250 | reconnection might be needed to free memory */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2251 | if (smb_buffer) |
| 2252 | cifs_buf_release(smb_buffer); |
| 2253 | |
| 2254 | return rc; |
| 2255 | } |
| 2256 | |
| 2257 | static int |
| 2258 | CIFSSpnegoSessSetup(unsigned int xid, struct cifsSesInfo *ses, |
| 2259 | char *SecurityBlob,int SecurityBlobLength, |
| 2260 | const struct nls_table *nls_codepage) |
| 2261 | { |
| 2262 | struct smb_hdr *smb_buffer; |
| 2263 | struct smb_hdr *smb_buffer_response; |
| 2264 | SESSION_SETUP_ANDX *pSMB; |
| 2265 | SESSION_SETUP_ANDX *pSMBr; |
| 2266 | char *bcc_ptr; |
| 2267 | char *user; |
| 2268 | char *domain; |
| 2269 | int rc = 0; |
| 2270 | int remaining_words = 0; |
| 2271 | int bytes_returned = 0; |
| 2272 | int len; |
| 2273 | __u32 capabilities; |
| 2274 | __u16 count; |
| 2275 | |
| 2276 | cFYI(1, ("In spnego sesssetup ")); |
| 2277 | if(ses == NULL) |
| 2278 | return -EINVAL; |
| 2279 | user = ses->userName; |
| 2280 | domain = ses->domainName; |
| 2281 | |
| 2282 | smb_buffer = cifs_buf_get(); |
| 2283 | if (smb_buffer == NULL) { |
| 2284 | return -ENOMEM; |
| 2285 | } |
| 2286 | smb_buffer_response = smb_buffer; |
| 2287 | pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer; |
| 2288 | |
| 2289 | /* send SMBsessionSetup here */ |
| 2290 | header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, |
| 2291 | NULL /* no tCon exists yet */ , 12 /* wct */ ); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 2292 | |
| 2293 | smb_buffer->Mid = GetNextMid(ses->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2294 | pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| 2295 | pSMB->req.AndXCommand = 0xFF; |
Steve French | 184ed21 | 2006-02-24 06:15:11 +0000 | [diff] [blame] | 2296 | if(ses->server->maxBuf > 64*1024) |
| 2297 | ses->server->maxBuf = (64*1023); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2298 | pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); |
| 2299 | pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); |
| 2300 | |
| 2301 | if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 2302 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| 2303 | |
| 2304 | capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | |
| 2305 | CAP_EXTENDED_SECURITY; |
| 2306 | if (ses->capabilities & CAP_UNICODE) { |
| 2307 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; |
| 2308 | capabilities |= CAP_UNICODE; |
| 2309 | } |
| 2310 | if (ses->capabilities & CAP_STATUS32) { |
| 2311 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
| 2312 | capabilities |= CAP_STATUS32; |
| 2313 | } |
| 2314 | if (ses->capabilities & CAP_DFS) { |
| 2315 | smb_buffer->Flags2 |= SMBFLG2_DFS; |
| 2316 | capabilities |= CAP_DFS; |
| 2317 | } |
| 2318 | pSMB->req.Capabilities = cpu_to_le32(capabilities); |
| 2319 | |
| 2320 | pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength); |
| 2321 | bcc_ptr = pByteArea(smb_buffer); |
| 2322 | memcpy(bcc_ptr, SecurityBlob, SecurityBlobLength); |
| 2323 | bcc_ptr += SecurityBlobLength; |
| 2324 | |
| 2325 | if (ses->capabilities & CAP_UNICODE) { |
| 2326 | if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode strings */ |
| 2327 | *bcc_ptr = 0; |
| 2328 | bcc_ptr++; |
| 2329 | } |
| 2330 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2331 | cifs_strtoUCS((__le16 *) bcc_ptr, user, 100, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2332 | bcc_ptr += 2 * bytes_returned; /* convert num of 16 bit words to bytes */ |
| 2333 | bcc_ptr += 2; /* trailing null */ |
| 2334 | if (domain == NULL) |
| 2335 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2336 | cifs_strtoUCS((__le16 *) bcc_ptr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2337 | "CIFS_LINUX_DOM", 32, nls_codepage); |
| 2338 | else |
| 2339 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2340 | cifs_strtoUCS((__le16 *) bcc_ptr, domain, 64, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | nls_codepage); |
| 2342 | bcc_ptr += 2 * bytes_returned; |
| 2343 | bcc_ptr += 2; |
| 2344 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2345 | cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2346 | 32, nls_codepage); |
| 2347 | bcc_ptr += 2 * bytes_returned; |
| 2348 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2349 | cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2350 | nls_codepage); |
| 2351 | bcc_ptr += 2 * bytes_returned; |
| 2352 | bcc_ptr += 2; |
| 2353 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2354 | cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2355 | 64, nls_codepage); |
| 2356 | bcc_ptr += 2 * bytes_returned; |
| 2357 | bcc_ptr += 2; |
| 2358 | } else { |
| 2359 | strncpy(bcc_ptr, user, 200); |
| 2360 | bcc_ptr += strnlen(user, 200); |
| 2361 | *bcc_ptr = 0; |
| 2362 | bcc_ptr++; |
| 2363 | if (domain == NULL) { |
| 2364 | strcpy(bcc_ptr, "CIFS_LINUX_DOM"); |
| 2365 | bcc_ptr += strlen("CIFS_LINUX_DOM") + 1; |
| 2366 | } else { |
| 2367 | strncpy(bcc_ptr, domain, 64); |
| 2368 | bcc_ptr += strnlen(domain, 64); |
| 2369 | *bcc_ptr = 0; |
| 2370 | bcc_ptr++; |
| 2371 | } |
| 2372 | strcpy(bcc_ptr, "Linux version "); |
| 2373 | bcc_ptr += strlen("Linux version "); |
| 2374 | strcpy(bcc_ptr, system_utsname.release); |
| 2375 | bcc_ptr += strlen(system_utsname.release) + 1; |
| 2376 | strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); |
| 2377 | bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; |
| 2378 | } |
| 2379 | count = (long) bcc_ptr - (long) pByteArea(smb_buffer); |
| 2380 | smb_buffer->smb_buf_length += count; |
| 2381 | pSMB->req.ByteCount = cpu_to_le16(count); |
| 2382 | |
| 2383 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, |
| 2384 | &bytes_returned, 1); |
| 2385 | if (rc) { |
| 2386 | /* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */ |
| 2387 | } else if ((smb_buffer_response->WordCount == 3) |
| 2388 | || (smb_buffer_response->WordCount == 4)) { |
| 2389 | __u16 action = le16_to_cpu(pSMBr->resp.Action); |
| 2390 | __u16 blob_len = |
| 2391 | le16_to_cpu(pSMBr->resp.SecurityBlobLength); |
| 2392 | if (action & GUEST_LOGIN) |
| 2393 | cFYI(1, (" Guest login")); /* BB do we want to set anything in SesInfo struct ? */ |
| 2394 | if (ses) { |
| 2395 | ses->Suid = smb_buffer_response->Uid; /* UID left in wire format (le) */ |
| 2396 | cFYI(1, ("UID = %d ", ses->Suid)); |
| 2397 | bcc_ptr = pByteArea(smb_buffer_response); /* response can have either 3 or 4 word count - Samba sends 3 */ |
| 2398 | |
| 2399 | /* BB Fix below to make endian neutral !! */ |
| 2400 | |
| 2401 | if ((pSMBr->resp.hdr.WordCount == 3) |
| 2402 | || ((pSMBr->resp.hdr.WordCount == 4) |
| 2403 | && (blob_len < |
| 2404 | pSMBr->resp.ByteCount))) { |
| 2405 | if (pSMBr->resp.hdr.WordCount == 4) { |
| 2406 | bcc_ptr += |
| 2407 | blob_len; |
| 2408 | cFYI(1, |
| 2409 | ("Security Blob Length %d ", |
| 2410 | blob_len)); |
| 2411 | } |
| 2412 | |
| 2413 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { |
| 2414 | if ((long) (bcc_ptr) % 2) { |
| 2415 | remaining_words = |
| 2416 | (BCC(smb_buffer_response) |
| 2417 | - 1) / 2; |
| 2418 | bcc_ptr++; /* Unicode strings must be word aligned */ |
| 2419 | } else { |
| 2420 | remaining_words = |
| 2421 | BCC |
| 2422 | (smb_buffer_response) / 2; |
| 2423 | } |
| 2424 | len = |
| 2425 | UniStrnlen((wchar_t *) bcc_ptr, |
| 2426 | remaining_words - 1); |
| 2427 | /* We look for obvious messed up bcc or strings in response so we do not go off |
| 2428 | the end since (at least) WIN2K and Windows XP have a major bug in not null |
| 2429 | terminating last Unicode string in response */ |
| 2430 | ses->serverOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2431 | kzalloc(2 * (len + 1), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2432 | cifs_strfromUCS_le(ses->serverOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2433 | (__le16 *) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2434 | bcc_ptr, len, |
| 2435 | nls_codepage); |
| 2436 | bcc_ptr += 2 * (len + 1); |
| 2437 | remaining_words -= len + 1; |
| 2438 | ses->serverOS[2 * len] = 0; |
| 2439 | ses->serverOS[1 + (2 * len)] = 0; |
| 2440 | if (remaining_words > 0) { |
| 2441 | len = UniStrnlen((wchar_t *)bcc_ptr, |
| 2442 | remaining_words |
| 2443 | - 1); |
| 2444 | ses->serverNOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2445 | kzalloc(2 * (len + 1), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2446 | GFP_KERNEL); |
| 2447 | cifs_strfromUCS_le(ses->serverNOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2448 | (__le16 *)bcc_ptr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2449 | len, |
| 2450 | nls_codepage); |
| 2451 | bcc_ptr += 2 * (len + 1); |
| 2452 | ses->serverNOS[2 * len] = 0; |
| 2453 | ses->serverNOS[1 + (2 * len)] = 0; |
| 2454 | remaining_words -= len + 1; |
| 2455 | if (remaining_words > 0) { |
| 2456 | len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); |
| 2457 | /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2458 | ses->serverDomain = kzalloc(2*(len+1),GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2459 | cifs_strfromUCS_le(ses->serverDomain, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2460 | (__le16 *)bcc_ptr, |
| 2461 | len, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2462 | bcc_ptr += 2*(len+1); |
| 2463 | ses->serverDomain[2*len] = 0; |
| 2464 | ses->serverDomain[1+(2*len)] = 0; |
| 2465 | } /* else no more room so create dummy domain string */ |
| 2466 | else |
| 2467 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2468 | kzalloc(2,GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2469 | } else { /* no room so create dummy domain and NOS string */ |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2470 | ses->serverDomain = kzalloc(2, GFP_KERNEL); |
| 2471 | ses->serverNOS = kzalloc(2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2472 | } |
| 2473 | } else { /* ASCII */ |
| 2474 | |
| 2475 | len = strnlen(bcc_ptr, 1024); |
| 2476 | if (((long) bcc_ptr + len) - (long) |
| 2477 | pByteArea(smb_buffer_response) |
| 2478 | <= BCC(smb_buffer_response)) { |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2479 | ses->serverOS = kzalloc(len + 1, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2480 | strncpy(ses->serverOS, bcc_ptr, len); |
| 2481 | |
| 2482 | bcc_ptr += len; |
| 2483 | bcc_ptr[0] = 0; /* null terminate the string */ |
| 2484 | bcc_ptr++; |
| 2485 | |
| 2486 | len = strnlen(bcc_ptr, 1024); |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2487 | ses->serverNOS = kzalloc(len + 1,GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2488 | strncpy(ses->serverNOS, bcc_ptr, len); |
| 2489 | bcc_ptr += len; |
| 2490 | bcc_ptr[0] = 0; |
| 2491 | bcc_ptr++; |
| 2492 | |
| 2493 | len = strnlen(bcc_ptr, 1024); |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2494 | ses->serverDomain = kzalloc(len + 1, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2495 | strncpy(ses->serverDomain, bcc_ptr, len); |
| 2496 | bcc_ptr += len; |
| 2497 | bcc_ptr[0] = 0; |
| 2498 | bcc_ptr++; |
| 2499 | } else |
| 2500 | cFYI(1, |
| 2501 | ("Variable field of length %d extends beyond end of smb ", |
| 2502 | len)); |
| 2503 | } |
| 2504 | } else { |
| 2505 | cERROR(1, |
| 2506 | (" Security Blob Length extends beyond end of SMB")); |
| 2507 | } |
| 2508 | } else { |
| 2509 | cERROR(1, ("No session structure passed in.")); |
| 2510 | } |
| 2511 | } else { |
| 2512 | cERROR(1, |
| 2513 | (" Invalid Word count %d: ", |
| 2514 | smb_buffer_response->WordCount)); |
| 2515 | rc = -EIO; |
| 2516 | } |
| 2517 | |
| 2518 | if (smb_buffer) |
| 2519 | cifs_buf_release(smb_buffer); |
| 2520 | |
| 2521 | return rc; |
| 2522 | } |
| 2523 | |
| 2524 | static int |
| 2525 | CIFSNTLMSSPNegotiateSessSetup(unsigned int xid, |
| 2526 | struct cifsSesInfo *ses, int * pNTLMv2_flag, |
| 2527 | const struct nls_table *nls_codepage) |
| 2528 | { |
| 2529 | struct smb_hdr *smb_buffer; |
| 2530 | struct smb_hdr *smb_buffer_response; |
| 2531 | SESSION_SETUP_ANDX *pSMB; |
| 2532 | SESSION_SETUP_ANDX *pSMBr; |
| 2533 | char *bcc_ptr; |
| 2534 | char *domain; |
| 2535 | int rc = 0; |
| 2536 | int remaining_words = 0; |
| 2537 | int bytes_returned = 0; |
| 2538 | int len; |
| 2539 | int SecurityBlobLength = sizeof (NEGOTIATE_MESSAGE); |
| 2540 | PNEGOTIATE_MESSAGE SecurityBlob; |
| 2541 | PCHALLENGE_MESSAGE SecurityBlob2; |
| 2542 | __u32 negotiate_flags, capabilities; |
| 2543 | __u16 count; |
| 2544 | |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2545 | cFYI(1, ("In NTLMSSP sesssetup (negotiate)")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2546 | if(ses == NULL) |
| 2547 | return -EINVAL; |
| 2548 | domain = ses->domainName; |
| 2549 | *pNTLMv2_flag = FALSE; |
| 2550 | smb_buffer = cifs_buf_get(); |
| 2551 | if (smb_buffer == NULL) { |
| 2552 | return -ENOMEM; |
| 2553 | } |
| 2554 | smb_buffer_response = smb_buffer; |
| 2555 | pSMB = (SESSION_SETUP_ANDX *) smb_buffer; |
| 2556 | pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response; |
| 2557 | |
| 2558 | /* send SMBsessionSetup here */ |
| 2559 | header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, |
| 2560 | NULL /* no tCon exists yet */ , 12 /* wct */ ); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 2561 | |
| 2562 | smb_buffer->Mid = GetNextMid(ses->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2563 | pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| 2564 | pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT); |
| 2565 | |
| 2566 | pSMB->req.AndXCommand = 0xFF; |
| 2567 | pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); |
| 2568 | pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); |
| 2569 | |
| 2570 | if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 2571 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| 2572 | |
| 2573 | capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | |
| 2574 | CAP_EXTENDED_SECURITY; |
| 2575 | if (ses->capabilities & CAP_UNICODE) { |
| 2576 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; |
| 2577 | capabilities |= CAP_UNICODE; |
| 2578 | } |
| 2579 | if (ses->capabilities & CAP_STATUS32) { |
| 2580 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
| 2581 | capabilities |= CAP_STATUS32; |
| 2582 | } |
| 2583 | if (ses->capabilities & CAP_DFS) { |
| 2584 | smb_buffer->Flags2 |= SMBFLG2_DFS; |
| 2585 | capabilities |= CAP_DFS; |
| 2586 | } |
| 2587 | pSMB->req.Capabilities = cpu_to_le32(capabilities); |
| 2588 | |
| 2589 | bcc_ptr = (char *) &pSMB->req.SecurityBlob; |
| 2590 | SecurityBlob = (PNEGOTIATE_MESSAGE) bcc_ptr; |
| 2591 | strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8); |
| 2592 | SecurityBlob->MessageType = NtLmNegotiate; |
| 2593 | negotiate_flags = |
| 2594 | NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_NEGOTIATE_OEM | |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2595 | NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | |
| 2596 | NTLMSSP_NEGOTIATE_56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2597 | /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128; |
| 2598 | if(sign_CIFS_PDUs) |
| 2599 | negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN; |
| 2600 | if(ntlmv2_support) |
| 2601 | negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2; |
| 2602 | /* setup pointers to domain name and workstation name */ |
| 2603 | bcc_ptr += SecurityBlobLength; |
| 2604 | |
| 2605 | SecurityBlob->WorkstationName.Buffer = 0; |
| 2606 | SecurityBlob->WorkstationName.Length = 0; |
| 2607 | SecurityBlob->WorkstationName.MaximumLength = 0; |
| 2608 | |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2609 | /* Domain not sent on first Sesssetup in NTLMSSP, instead it is sent |
| 2610 | along with username on auth request (ie the response to challenge) */ |
| 2611 | SecurityBlob->DomainName.Buffer = 0; |
| 2612 | SecurityBlob->DomainName.Length = 0; |
| 2613 | SecurityBlob->DomainName.MaximumLength = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2614 | if (ses->capabilities & CAP_UNICODE) { |
| 2615 | if ((long) bcc_ptr % 2) { |
| 2616 | *bcc_ptr = 0; |
| 2617 | bcc_ptr++; |
| 2618 | } |
| 2619 | |
| 2620 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2621 | cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2622 | 32, nls_codepage); |
| 2623 | bcc_ptr += 2 * bytes_returned; |
| 2624 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2625 | cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2626 | nls_codepage); |
| 2627 | bcc_ptr += 2 * bytes_returned; |
| 2628 | bcc_ptr += 2; /* null terminate Linux version */ |
| 2629 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2630 | cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2631 | 64, nls_codepage); |
| 2632 | bcc_ptr += 2 * bytes_returned; |
| 2633 | *(bcc_ptr + 1) = 0; |
| 2634 | *(bcc_ptr + 2) = 0; |
| 2635 | bcc_ptr += 2; /* null terminate network opsys string */ |
| 2636 | *(bcc_ptr + 1) = 0; |
| 2637 | *(bcc_ptr + 2) = 0; |
| 2638 | bcc_ptr += 2; /* null domain */ |
| 2639 | } else { /* ASCII */ |
| 2640 | strcpy(bcc_ptr, "Linux version "); |
| 2641 | bcc_ptr += strlen("Linux version "); |
| 2642 | strcpy(bcc_ptr, system_utsname.release); |
| 2643 | bcc_ptr += strlen(system_utsname.release) + 1; |
| 2644 | strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); |
| 2645 | bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; |
| 2646 | bcc_ptr++; /* empty domain field */ |
| 2647 | *bcc_ptr = 0; |
| 2648 | } |
| 2649 | SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags); |
| 2650 | pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength); |
| 2651 | count = (long) bcc_ptr - (long) pByteArea(smb_buffer); |
| 2652 | smb_buffer->smb_buf_length += count; |
| 2653 | pSMB->req.ByteCount = cpu_to_le16(count); |
| 2654 | |
| 2655 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, |
| 2656 | &bytes_returned, 1); |
| 2657 | |
| 2658 | if (smb_buffer_response->Status.CifsError == |
| 2659 | cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED)) |
| 2660 | rc = 0; |
| 2661 | |
| 2662 | if (rc) { |
| 2663 | /* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */ |
| 2664 | } else if ((smb_buffer_response->WordCount == 3) |
| 2665 | || (smb_buffer_response->WordCount == 4)) { |
| 2666 | __u16 action = le16_to_cpu(pSMBr->resp.Action); |
| 2667 | __u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength); |
| 2668 | |
| 2669 | if (action & GUEST_LOGIN) |
| 2670 | cFYI(1, (" Guest login")); |
| 2671 | /* Do we want to set anything in SesInfo struct when guest login? */ |
| 2672 | |
| 2673 | bcc_ptr = pByteArea(smb_buffer_response); |
| 2674 | /* response can have either 3 or 4 word count - Samba sends 3 */ |
| 2675 | |
| 2676 | SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr; |
| 2677 | if (SecurityBlob2->MessageType != NtLmChallenge) { |
| 2678 | cFYI(1, |
| 2679 | ("Unexpected NTLMSSP message type received %d", |
| 2680 | SecurityBlob2->MessageType)); |
| 2681 | } else if (ses) { |
| 2682 | ses->Suid = smb_buffer_response->Uid; /* UID left in le format */ |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2683 | cFYI(1, ("UID = %d", ses->Suid)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2684 | if ((pSMBr->resp.hdr.WordCount == 3) |
| 2685 | || ((pSMBr->resp.hdr.WordCount == 4) |
| 2686 | && (blob_len < |
| 2687 | pSMBr->resp.ByteCount))) { |
| 2688 | |
| 2689 | if (pSMBr->resp.hdr.WordCount == 4) { |
| 2690 | bcc_ptr += blob_len; |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2691 | cFYI(1, ("Security Blob Length %d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2692 | blob_len)); |
| 2693 | } |
| 2694 | |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2695 | cFYI(1, ("NTLMSSP Challenge rcvd")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2696 | |
| 2697 | memcpy(ses->server->cryptKey, |
| 2698 | SecurityBlob2->Challenge, |
| 2699 | CIFS_CRYPTO_KEY_SIZE); |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2700 | if(SecurityBlob2->NegotiateFlags & |
| 2701 | cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2702 | *pNTLMv2_flag = TRUE; |
| 2703 | |
| 2704 | if((SecurityBlob2->NegotiateFlags & |
| 2705 | cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) |
| 2706 | || (sign_CIFS_PDUs > 1)) |
| 2707 | ses->server->secMode |= |
| 2708 | SECMODE_SIGN_REQUIRED; |
| 2709 | if ((SecurityBlob2->NegotiateFlags & |
| 2710 | cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs)) |
| 2711 | ses->server->secMode |= |
| 2712 | SECMODE_SIGN_ENABLED; |
| 2713 | |
| 2714 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { |
| 2715 | if ((long) (bcc_ptr) % 2) { |
| 2716 | remaining_words = |
| 2717 | (BCC(smb_buffer_response) |
| 2718 | - 1) / 2; |
| 2719 | bcc_ptr++; /* Unicode strings must be word aligned */ |
| 2720 | } else { |
| 2721 | remaining_words = |
| 2722 | BCC |
| 2723 | (smb_buffer_response) / 2; |
| 2724 | } |
| 2725 | len = |
| 2726 | UniStrnlen((wchar_t *) bcc_ptr, |
| 2727 | remaining_words - 1); |
| 2728 | /* We look for obvious messed up bcc or strings in response so we do not go off |
| 2729 | the end since (at least) WIN2K and Windows XP have a major bug in not null |
| 2730 | terminating last Unicode string in response */ |
| 2731 | ses->serverOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2732 | kzalloc(2 * (len + 1), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2733 | cifs_strfromUCS_le(ses->serverOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2734 | (__le16 *) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2735 | bcc_ptr, len, |
| 2736 | nls_codepage); |
| 2737 | bcc_ptr += 2 * (len + 1); |
| 2738 | remaining_words -= len + 1; |
| 2739 | ses->serverOS[2 * len] = 0; |
| 2740 | ses->serverOS[1 + (2 * len)] = 0; |
| 2741 | if (remaining_words > 0) { |
| 2742 | len = UniStrnlen((wchar_t *) |
| 2743 | bcc_ptr, |
| 2744 | remaining_words |
| 2745 | - 1); |
| 2746 | ses->serverNOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2747 | kzalloc(2 * (len + 1), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2748 | GFP_KERNEL); |
| 2749 | cifs_strfromUCS_le(ses-> |
| 2750 | serverNOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2751 | (__le16 *) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2752 | bcc_ptr, |
| 2753 | len, |
| 2754 | nls_codepage); |
| 2755 | bcc_ptr += 2 * (len + 1); |
| 2756 | ses->serverNOS[2 * len] = 0; |
| 2757 | ses->serverNOS[1 + |
| 2758 | (2 * len)] = 0; |
| 2759 | remaining_words -= len + 1; |
| 2760 | if (remaining_words > 0) { |
| 2761 | len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); |
| 2762 | /* last string is not always null terminated (for e.g. for Windows XP & 2000) */ |
| 2763 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2764 | kzalloc(2 * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2765 | (len + |
| 2766 | 1), |
| 2767 | GFP_KERNEL); |
| 2768 | cifs_strfromUCS_le |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2769 | (ses->serverDomain, |
| 2770 | (__le16 *)bcc_ptr, |
| 2771 | len, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | bcc_ptr += |
| 2773 | 2 * (len + 1); |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2774 | ses->serverDomain[2*len] |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2775 | = 0; |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2776 | ses->serverDomain |
| 2777 | [1 + (2 * len)] |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2778 | = 0; |
| 2779 | } /* else no more room so create dummy domain string */ |
| 2780 | else |
| 2781 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2782 | kzalloc(2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2783 | GFP_KERNEL); |
| 2784 | } else { /* no room so create dummy domain and NOS string */ |
| 2785 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2786 | kzalloc(2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2787 | ses->serverNOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2788 | kzalloc(2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2789 | } |
| 2790 | } else { /* ASCII */ |
| 2791 | len = strnlen(bcc_ptr, 1024); |
| 2792 | if (((long) bcc_ptr + len) - (long) |
| 2793 | pByteArea(smb_buffer_response) |
| 2794 | <= BCC(smb_buffer_response)) { |
| 2795 | ses->serverOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2796 | kzalloc(len + 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2797 | GFP_KERNEL); |
| 2798 | strncpy(ses->serverOS, |
| 2799 | bcc_ptr, len); |
| 2800 | |
| 2801 | bcc_ptr += len; |
| 2802 | bcc_ptr[0] = 0; /* null terminate string */ |
| 2803 | bcc_ptr++; |
| 2804 | |
| 2805 | len = strnlen(bcc_ptr, 1024); |
| 2806 | ses->serverNOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2807 | kzalloc(len + 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2808 | GFP_KERNEL); |
| 2809 | strncpy(ses->serverNOS, bcc_ptr, len); |
| 2810 | bcc_ptr += len; |
| 2811 | bcc_ptr[0] = 0; |
| 2812 | bcc_ptr++; |
| 2813 | |
| 2814 | len = strnlen(bcc_ptr, 1024); |
| 2815 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 2816 | kzalloc(len + 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2817 | GFP_KERNEL); |
| 2818 | strncpy(ses->serverDomain, bcc_ptr, len); |
| 2819 | bcc_ptr += len; |
| 2820 | bcc_ptr[0] = 0; |
| 2821 | bcc_ptr++; |
| 2822 | } else |
| 2823 | cFYI(1, |
Steve French | 12b3b8f | 2006-02-09 21:12:47 +0000 | [diff] [blame] | 2824 | ("Variable field of length %d extends beyond end of smb", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2825 | len)); |
| 2826 | } |
| 2827 | } else { |
| 2828 | cERROR(1, |
| 2829 | (" Security Blob Length extends beyond end of SMB")); |
| 2830 | } |
| 2831 | } else { |
| 2832 | cERROR(1, ("No session structure passed in.")); |
| 2833 | } |
| 2834 | } else { |
| 2835 | cERROR(1, |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 2836 | (" Invalid Word count %d:", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2837 | smb_buffer_response->WordCount)); |
| 2838 | rc = -EIO; |
| 2839 | } |
| 2840 | |
| 2841 | if (smb_buffer) |
| 2842 | cifs_buf_release(smb_buffer); |
| 2843 | |
| 2844 | return rc; |
| 2845 | } |
| 2846 | static int |
| 2847 | CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses, |
| 2848 | char *ntlm_session_key, int ntlmv2_flag, |
| 2849 | const struct nls_table *nls_codepage) |
| 2850 | { |
| 2851 | struct smb_hdr *smb_buffer; |
| 2852 | struct smb_hdr *smb_buffer_response; |
| 2853 | SESSION_SETUP_ANDX *pSMB; |
| 2854 | SESSION_SETUP_ANDX *pSMBr; |
| 2855 | char *bcc_ptr; |
| 2856 | char *user; |
| 2857 | char *domain; |
| 2858 | int rc = 0; |
| 2859 | int remaining_words = 0; |
| 2860 | int bytes_returned = 0; |
| 2861 | int len; |
| 2862 | int SecurityBlobLength = sizeof (AUTHENTICATE_MESSAGE); |
| 2863 | PAUTHENTICATE_MESSAGE SecurityBlob; |
| 2864 | __u32 negotiate_flags, capabilities; |
| 2865 | __u16 count; |
| 2866 | |
| 2867 | cFYI(1, ("In NTLMSSPSessSetup (Authenticate)")); |
| 2868 | if(ses == NULL) |
| 2869 | return -EINVAL; |
| 2870 | user = ses->userName; |
| 2871 | domain = ses->domainName; |
| 2872 | smb_buffer = cifs_buf_get(); |
| 2873 | if (smb_buffer == NULL) { |
| 2874 | return -ENOMEM; |
| 2875 | } |
| 2876 | smb_buffer_response = smb_buffer; |
| 2877 | pSMB = (SESSION_SETUP_ANDX *) smb_buffer; |
| 2878 | pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response; |
| 2879 | |
| 2880 | /* send SMBsessionSetup here */ |
| 2881 | header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX, |
| 2882 | NULL /* no tCon exists yet */ , 12 /* wct */ ); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 2883 | |
| 2884 | smb_buffer->Mid = GetNextMid(ses->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2885 | pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT); |
| 2886 | pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; |
| 2887 | pSMB->req.AndXCommand = 0xFF; |
| 2888 | pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf); |
| 2889 | pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq); |
| 2890 | |
| 2891 | pSMB->req.hdr.Uid = ses->Suid; |
| 2892 | |
| 2893 | if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 2894 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| 2895 | |
| 2896 | capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS | |
| 2897 | CAP_EXTENDED_SECURITY; |
| 2898 | if (ses->capabilities & CAP_UNICODE) { |
| 2899 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; |
| 2900 | capabilities |= CAP_UNICODE; |
| 2901 | } |
| 2902 | if (ses->capabilities & CAP_STATUS32) { |
| 2903 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
| 2904 | capabilities |= CAP_STATUS32; |
| 2905 | } |
| 2906 | if (ses->capabilities & CAP_DFS) { |
| 2907 | smb_buffer->Flags2 |= SMBFLG2_DFS; |
| 2908 | capabilities |= CAP_DFS; |
| 2909 | } |
| 2910 | pSMB->req.Capabilities = cpu_to_le32(capabilities); |
| 2911 | |
| 2912 | bcc_ptr = (char *) &pSMB->req.SecurityBlob; |
| 2913 | SecurityBlob = (PAUTHENTICATE_MESSAGE) bcc_ptr; |
| 2914 | strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8); |
| 2915 | SecurityBlob->MessageType = NtLmAuthenticate; |
| 2916 | bcc_ptr += SecurityBlobLength; |
| 2917 | negotiate_flags = |
| 2918 | NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET | |
| 2919 | NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO | |
| 2920 | 0x80000000 | NTLMSSP_NEGOTIATE_128; |
| 2921 | if(sign_CIFS_PDUs) |
| 2922 | negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN; |
| 2923 | if(ntlmv2_flag) |
| 2924 | negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2; |
| 2925 | |
| 2926 | /* setup pointers to domain name and workstation name */ |
| 2927 | |
| 2928 | SecurityBlob->WorkstationName.Buffer = 0; |
| 2929 | SecurityBlob->WorkstationName.Length = 0; |
| 2930 | SecurityBlob->WorkstationName.MaximumLength = 0; |
| 2931 | SecurityBlob->SessionKey.Length = 0; |
| 2932 | SecurityBlob->SessionKey.MaximumLength = 0; |
| 2933 | SecurityBlob->SessionKey.Buffer = 0; |
| 2934 | |
| 2935 | SecurityBlob->LmChallengeResponse.Length = 0; |
| 2936 | SecurityBlob->LmChallengeResponse.MaximumLength = 0; |
| 2937 | SecurityBlob->LmChallengeResponse.Buffer = 0; |
| 2938 | |
| 2939 | SecurityBlob->NtChallengeResponse.Length = |
| 2940 | cpu_to_le16(CIFS_SESSION_KEY_SIZE); |
| 2941 | SecurityBlob->NtChallengeResponse.MaximumLength = |
| 2942 | cpu_to_le16(CIFS_SESSION_KEY_SIZE); |
| 2943 | memcpy(bcc_ptr, ntlm_session_key, CIFS_SESSION_KEY_SIZE); |
| 2944 | SecurityBlob->NtChallengeResponse.Buffer = |
| 2945 | cpu_to_le32(SecurityBlobLength); |
| 2946 | SecurityBlobLength += CIFS_SESSION_KEY_SIZE; |
| 2947 | bcc_ptr += CIFS_SESSION_KEY_SIZE; |
| 2948 | |
| 2949 | if (ses->capabilities & CAP_UNICODE) { |
| 2950 | if (domain == NULL) { |
| 2951 | SecurityBlob->DomainName.Buffer = 0; |
| 2952 | SecurityBlob->DomainName.Length = 0; |
| 2953 | SecurityBlob->DomainName.MaximumLength = 0; |
| 2954 | } else { |
| 2955 | __u16 len = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2956 | cifs_strtoUCS((__le16 *) bcc_ptr, domain, 64, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2957 | nls_codepage); |
| 2958 | len *= 2; |
| 2959 | SecurityBlob->DomainName.MaximumLength = |
| 2960 | cpu_to_le16(len); |
| 2961 | SecurityBlob->DomainName.Buffer = |
| 2962 | cpu_to_le32(SecurityBlobLength); |
| 2963 | bcc_ptr += len; |
| 2964 | SecurityBlobLength += len; |
| 2965 | SecurityBlob->DomainName.Length = |
| 2966 | cpu_to_le16(len); |
| 2967 | } |
| 2968 | if (user == NULL) { |
| 2969 | SecurityBlob->UserName.Buffer = 0; |
| 2970 | SecurityBlob->UserName.Length = 0; |
| 2971 | SecurityBlob->UserName.MaximumLength = 0; |
| 2972 | } else { |
| 2973 | __u16 len = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2974 | cifs_strtoUCS((__le16 *) bcc_ptr, user, 64, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2975 | nls_codepage); |
| 2976 | len *= 2; |
| 2977 | SecurityBlob->UserName.MaximumLength = |
| 2978 | cpu_to_le16(len); |
| 2979 | SecurityBlob->UserName.Buffer = |
| 2980 | cpu_to_le32(SecurityBlobLength); |
| 2981 | bcc_ptr += len; |
| 2982 | SecurityBlobLength += len; |
| 2983 | SecurityBlob->UserName.Length = |
| 2984 | cpu_to_le16(len); |
| 2985 | } |
| 2986 | |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 2987 | /* SecurityBlob->WorkstationName.Length = cifs_strtoUCS((__le16 *) bcc_ptr, "AMACHINE",64, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2988 | SecurityBlob->WorkstationName.Length *= 2; |
| 2989 | SecurityBlob->WorkstationName.MaximumLength = cpu_to_le16(SecurityBlob->WorkstationName.Length); |
| 2990 | SecurityBlob->WorkstationName.Buffer = cpu_to_le32(SecurityBlobLength); |
| 2991 | bcc_ptr += SecurityBlob->WorkstationName.Length; |
| 2992 | SecurityBlobLength += SecurityBlob->WorkstationName.Length; |
| 2993 | SecurityBlob->WorkstationName.Length = cpu_to_le16(SecurityBlob->WorkstationName.Length); */ |
| 2994 | |
| 2995 | if ((long) bcc_ptr % 2) { |
| 2996 | *bcc_ptr = 0; |
| 2997 | bcc_ptr++; |
| 2998 | } |
| 2999 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3000 | cifs_strtoUCS((__le16 *) bcc_ptr, "Linux version ", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3001 | 32, nls_codepage); |
| 3002 | bcc_ptr += 2 * bytes_returned; |
| 3003 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3004 | cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3005 | nls_codepage); |
| 3006 | bcc_ptr += 2 * bytes_returned; |
| 3007 | bcc_ptr += 2; /* null term version string */ |
| 3008 | bytes_returned = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3009 | cifs_strtoUCS((__le16 *) bcc_ptr, CIFS_NETWORK_OPSYS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3010 | 64, nls_codepage); |
| 3011 | bcc_ptr += 2 * bytes_returned; |
| 3012 | *(bcc_ptr + 1) = 0; |
| 3013 | *(bcc_ptr + 2) = 0; |
| 3014 | bcc_ptr += 2; /* null terminate network opsys string */ |
| 3015 | *(bcc_ptr + 1) = 0; |
| 3016 | *(bcc_ptr + 2) = 0; |
| 3017 | bcc_ptr += 2; /* null domain */ |
| 3018 | } else { /* ASCII */ |
| 3019 | if (domain == NULL) { |
| 3020 | SecurityBlob->DomainName.Buffer = 0; |
| 3021 | SecurityBlob->DomainName.Length = 0; |
| 3022 | SecurityBlob->DomainName.MaximumLength = 0; |
| 3023 | } else { |
| 3024 | __u16 len; |
| 3025 | negotiate_flags |= NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED; |
| 3026 | strncpy(bcc_ptr, domain, 63); |
| 3027 | len = strnlen(domain, 64); |
| 3028 | SecurityBlob->DomainName.MaximumLength = |
| 3029 | cpu_to_le16(len); |
| 3030 | SecurityBlob->DomainName.Buffer = |
| 3031 | cpu_to_le32(SecurityBlobLength); |
| 3032 | bcc_ptr += len; |
| 3033 | SecurityBlobLength += len; |
| 3034 | SecurityBlob->DomainName.Length = cpu_to_le16(len); |
| 3035 | } |
| 3036 | if (user == NULL) { |
| 3037 | SecurityBlob->UserName.Buffer = 0; |
| 3038 | SecurityBlob->UserName.Length = 0; |
| 3039 | SecurityBlob->UserName.MaximumLength = 0; |
| 3040 | } else { |
| 3041 | __u16 len; |
| 3042 | strncpy(bcc_ptr, user, 63); |
| 3043 | len = strnlen(user, 64); |
| 3044 | SecurityBlob->UserName.MaximumLength = |
| 3045 | cpu_to_le16(len); |
| 3046 | SecurityBlob->UserName.Buffer = |
| 3047 | cpu_to_le32(SecurityBlobLength); |
| 3048 | bcc_ptr += len; |
| 3049 | SecurityBlobLength += len; |
| 3050 | SecurityBlob->UserName.Length = cpu_to_le16(len); |
| 3051 | } |
| 3052 | /* BB fill in our workstation name if known BB */ |
| 3053 | |
| 3054 | strcpy(bcc_ptr, "Linux version "); |
| 3055 | bcc_ptr += strlen("Linux version "); |
| 3056 | strcpy(bcc_ptr, system_utsname.release); |
| 3057 | bcc_ptr += strlen(system_utsname.release) + 1; |
| 3058 | strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); |
| 3059 | bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1; |
| 3060 | bcc_ptr++; /* null domain */ |
| 3061 | *bcc_ptr = 0; |
| 3062 | } |
| 3063 | SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags); |
| 3064 | pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength); |
| 3065 | count = (long) bcc_ptr - (long) pByteArea(smb_buffer); |
| 3066 | smb_buffer->smb_buf_length += count; |
| 3067 | pSMB->req.ByteCount = cpu_to_le16(count); |
| 3068 | |
| 3069 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, |
| 3070 | &bytes_returned, 1); |
| 3071 | if (rc) { |
| 3072 | /* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */ |
| 3073 | } else if ((smb_buffer_response->WordCount == 3) |
| 3074 | || (smb_buffer_response->WordCount == 4)) { |
| 3075 | __u16 action = le16_to_cpu(pSMBr->resp.Action); |
| 3076 | __u16 blob_len = |
| 3077 | le16_to_cpu(pSMBr->resp.SecurityBlobLength); |
| 3078 | if (action & GUEST_LOGIN) |
| 3079 | cFYI(1, (" Guest login")); /* BB do we want to set anything in SesInfo struct ? */ |
| 3080 | /* if(SecurityBlob2->MessageType != NtLm??){ |
| 3081 | cFYI("Unexpected message type on auth response is %d ")); |
| 3082 | } */ |
| 3083 | if (ses) { |
| 3084 | cFYI(1, |
| 3085 | ("Does UID on challenge %d match auth response UID %d ", |
| 3086 | ses->Suid, smb_buffer_response->Uid)); |
| 3087 | ses->Suid = smb_buffer_response->Uid; /* UID left in wire format */ |
| 3088 | bcc_ptr = pByteArea(smb_buffer_response); |
| 3089 | /* response can have either 3 or 4 word count - Samba sends 3 */ |
| 3090 | if ((pSMBr->resp.hdr.WordCount == 3) |
| 3091 | || ((pSMBr->resp.hdr.WordCount == 4) |
| 3092 | && (blob_len < |
| 3093 | pSMBr->resp.ByteCount))) { |
| 3094 | if (pSMBr->resp.hdr.WordCount == 4) { |
| 3095 | bcc_ptr += |
| 3096 | blob_len; |
| 3097 | cFYI(1, |
| 3098 | ("Security Blob Length %d ", |
| 3099 | blob_len)); |
| 3100 | } |
| 3101 | |
| 3102 | cFYI(1, |
| 3103 | ("NTLMSSP response to Authenticate ")); |
| 3104 | |
| 3105 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { |
| 3106 | if ((long) (bcc_ptr) % 2) { |
| 3107 | remaining_words = |
| 3108 | (BCC(smb_buffer_response) |
| 3109 | - 1) / 2; |
| 3110 | bcc_ptr++; /* Unicode strings must be word aligned */ |
| 3111 | } else { |
| 3112 | remaining_words = BCC(smb_buffer_response) / 2; |
| 3113 | } |
| 3114 | len = |
| 3115 | UniStrnlen((wchar_t *) bcc_ptr,remaining_words - 1); |
| 3116 | /* We look for obvious messed up bcc or strings in response so we do not go off |
| 3117 | the end since (at least) WIN2K and Windows XP have a major bug in not null |
| 3118 | terminating last Unicode string in response */ |
| 3119 | ses->serverOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3120 | kzalloc(2 * (len + 1), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3121 | cifs_strfromUCS_le(ses->serverOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3122 | (__le16 *) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3123 | bcc_ptr, len, |
| 3124 | nls_codepage); |
| 3125 | bcc_ptr += 2 * (len + 1); |
| 3126 | remaining_words -= len + 1; |
| 3127 | ses->serverOS[2 * len] = 0; |
| 3128 | ses->serverOS[1 + (2 * len)] = 0; |
| 3129 | if (remaining_words > 0) { |
| 3130 | len = UniStrnlen((wchar_t *) |
| 3131 | bcc_ptr, |
| 3132 | remaining_words |
| 3133 | - 1); |
| 3134 | ses->serverNOS = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3135 | kzalloc(2 * (len + 1), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3136 | GFP_KERNEL); |
| 3137 | cifs_strfromUCS_le(ses-> |
| 3138 | serverNOS, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3139 | (__le16 *) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3140 | bcc_ptr, |
| 3141 | len, |
| 3142 | nls_codepage); |
| 3143 | bcc_ptr += 2 * (len + 1); |
| 3144 | ses->serverNOS[2 * len] = 0; |
| 3145 | ses->serverNOS[1+(2*len)] = 0; |
| 3146 | remaining_words -= len + 1; |
| 3147 | if (remaining_words > 0) { |
| 3148 | len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words); |
| 3149 | /* last string not always null terminated (e.g. for Windows XP & 2000) */ |
| 3150 | ses->serverDomain = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3151 | kzalloc(2 * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3152 | (len + |
| 3153 | 1), |
| 3154 | GFP_KERNEL); |
| 3155 | cifs_strfromUCS_le |
| 3156 | (ses-> |
| 3157 | serverDomain, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3158 | (__le16 *) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3159 | bcc_ptr, len, |
| 3160 | nls_codepage); |
| 3161 | bcc_ptr += |
| 3162 | 2 * (len + 1); |
| 3163 | ses-> |
| 3164 | serverDomain[2 |
| 3165 | * len] |
| 3166 | = 0; |
| 3167 | ses-> |
| 3168 | serverDomain[1 |
| 3169 | + |
| 3170 | (2 |
| 3171 | * |
| 3172 | len)] |
| 3173 | = 0; |
| 3174 | } /* else no more room so create dummy domain string */ |
| 3175 | else |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3176 | ses->serverDomain = kzalloc(2,GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3177 | } else { /* no room so create dummy domain and NOS string */ |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3178 | ses->serverDomain = kzalloc(2, GFP_KERNEL); |
| 3179 | ses->serverNOS = kzalloc(2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3180 | } |
| 3181 | } else { /* ASCII */ |
| 3182 | len = strnlen(bcc_ptr, 1024); |
| 3183 | if (((long) bcc_ptr + len) - |
| 3184 | (long) pByteArea(smb_buffer_response) |
| 3185 | <= BCC(smb_buffer_response)) { |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3186 | ses->serverOS = kzalloc(len + 1,GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3187 | strncpy(ses->serverOS,bcc_ptr, len); |
| 3188 | |
| 3189 | bcc_ptr += len; |
| 3190 | bcc_ptr[0] = 0; /* null terminate the string */ |
| 3191 | bcc_ptr++; |
| 3192 | |
| 3193 | len = strnlen(bcc_ptr, 1024); |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3194 | ses->serverNOS = kzalloc(len+1,GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3195 | strncpy(ses->serverNOS, bcc_ptr, len); |
| 3196 | bcc_ptr += len; |
| 3197 | bcc_ptr[0] = 0; |
| 3198 | bcc_ptr++; |
| 3199 | |
| 3200 | len = strnlen(bcc_ptr, 1024); |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3201 | ses->serverDomain = kzalloc(len+1,GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3202 | strncpy(ses->serverDomain, bcc_ptr, len); |
| 3203 | bcc_ptr += len; |
| 3204 | bcc_ptr[0] = 0; |
| 3205 | bcc_ptr++; |
| 3206 | } else |
| 3207 | cFYI(1, |
| 3208 | ("Variable field of length %d extends beyond end of smb ", |
| 3209 | len)); |
| 3210 | } |
| 3211 | } else { |
| 3212 | cERROR(1, |
| 3213 | (" Security Blob Length extends beyond end of SMB")); |
| 3214 | } |
| 3215 | } else { |
| 3216 | cERROR(1, ("No session structure passed in.")); |
| 3217 | } |
| 3218 | } else { |
| 3219 | cERROR(1, |
| 3220 | (" Invalid Word count %d: ", |
| 3221 | smb_buffer_response->WordCount)); |
| 3222 | rc = -EIO; |
| 3223 | } |
| 3224 | |
| 3225 | if (smb_buffer) |
| 3226 | cifs_buf_release(smb_buffer); |
| 3227 | |
| 3228 | return rc; |
| 3229 | } |
| 3230 | |
| 3231 | int |
| 3232 | CIFSTCon(unsigned int xid, struct cifsSesInfo *ses, |
| 3233 | const char *tree, struct cifsTconInfo *tcon, |
| 3234 | const struct nls_table *nls_codepage) |
| 3235 | { |
| 3236 | struct smb_hdr *smb_buffer; |
| 3237 | struct smb_hdr *smb_buffer_response; |
| 3238 | TCONX_REQ *pSMB; |
| 3239 | TCONX_RSP *pSMBr; |
| 3240 | unsigned char *bcc_ptr; |
| 3241 | int rc = 0; |
| 3242 | int length; |
| 3243 | __u16 count; |
| 3244 | |
| 3245 | if (ses == NULL) |
| 3246 | return -EIO; |
| 3247 | |
| 3248 | smb_buffer = cifs_buf_get(); |
| 3249 | if (smb_buffer == NULL) { |
| 3250 | return -ENOMEM; |
| 3251 | } |
| 3252 | smb_buffer_response = smb_buffer; |
| 3253 | |
| 3254 | header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX, |
| 3255 | NULL /*no tid */ , 4 /*wct */ ); |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 3256 | |
| 3257 | smb_buffer->Mid = GetNextMid(ses->server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3258 | smb_buffer->Uid = ses->Suid; |
| 3259 | pSMB = (TCONX_REQ *) smb_buffer; |
| 3260 | pSMBr = (TCONX_RSP *) smb_buffer_response; |
| 3261 | |
| 3262 | pSMB->AndXCommand = 0xFF; |
| 3263 | pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3264 | bcc_ptr = &pSMB->Password[0]; |
Steve French | eeac804 | 2006-01-13 21:34:58 -0800 | [diff] [blame] | 3265 | if((ses->server->secMode) & SECMODE_USER) { |
| 3266 | pSMB->PasswordLength = cpu_to_le16(1); /* minimum */ |
| 3267 | bcc_ptr++; /* skip password */ |
| 3268 | } else { |
| 3269 | pSMB->PasswordLength = cpu_to_le16(CIFS_SESSION_KEY_SIZE); |
| 3270 | /* BB FIXME add code to fail this if NTLMv2 or Kerberos |
| 3271 | specified as required (when that support is added to |
| 3272 | the vfs in the future) as only NTLM or the much |
| 3273 | weaker LANMAN (which we do not send) is accepted |
| 3274 | by Samba (not sure whether other servers allow |
| 3275 | NTLMv2 password here) */ |
| 3276 | SMBNTencrypt(ses->password, |
| 3277 | ses->server->cryptKey, |
| 3278 | bcc_ptr); |
| 3279 | |
| 3280 | bcc_ptr += CIFS_SESSION_KEY_SIZE; |
| 3281 | *bcc_ptr = 0; |
| 3282 | bcc_ptr++; /* align */ |
| 3283 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3284 | |
| 3285 | if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
| 3286 | smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; |
| 3287 | |
| 3288 | if (ses->capabilities & CAP_STATUS32) { |
| 3289 | smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
| 3290 | } |
| 3291 | if (ses->capabilities & CAP_DFS) { |
| 3292 | smb_buffer->Flags2 |= SMBFLG2_DFS; |
| 3293 | } |
| 3294 | if (ses->capabilities & CAP_UNICODE) { |
| 3295 | smb_buffer->Flags2 |= SMBFLG2_UNICODE; |
| 3296 | length = |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3297 | cifs_strtoUCS((__le16 *) bcc_ptr, tree, 100, nls_codepage); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3298 | bcc_ptr += 2 * length; /* convert num of 16 bit words to bytes */ |
| 3299 | bcc_ptr += 2; /* skip trailing null */ |
| 3300 | } else { /* ASCII */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3301 | strcpy(bcc_ptr, tree); |
| 3302 | bcc_ptr += strlen(tree) + 1; |
| 3303 | } |
| 3304 | strcpy(bcc_ptr, "?????"); |
| 3305 | bcc_ptr += strlen("?????"); |
| 3306 | bcc_ptr += 1; |
| 3307 | count = bcc_ptr - &pSMB->Password[0]; |
| 3308 | pSMB->hdr.smb_buf_length += count; |
| 3309 | pSMB->ByteCount = cpu_to_le16(count); |
| 3310 | |
| 3311 | rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length, 0); |
| 3312 | |
| 3313 | /* if (rc) rc = map_smb_to_linux_error(smb_buffer_response); */ |
| 3314 | /* above now done in SendReceive */ |
| 3315 | if ((rc == 0) && (tcon != NULL)) { |
| 3316 | tcon->tidStatus = CifsGood; |
| 3317 | tcon->tid = smb_buffer_response->Tid; |
| 3318 | bcc_ptr = pByteArea(smb_buffer_response); |
| 3319 | length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2); |
| 3320 | /* skip service field (NB: this field is always ASCII) */ |
| 3321 | bcc_ptr += length + 1; |
| 3322 | strncpy(tcon->treeName, tree, MAX_TREE_SIZE); |
| 3323 | if (smb_buffer->Flags2 & SMBFLG2_UNICODE) { |
| 3324 | length = UniStrnlen((wchar_t *) bcc_ptr, 512); |
| 3325 | if ((bcc_ptr + (2 * length)) - |
| 3326 | pByteArea(smb_buffer_response) <= |
| 3327 | BCC(smb_buffer_response)) { |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 3328 | kfree(tcon->nativeFileSystem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3329 | tcon->nativeFileSystem = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3330 | kzalloc(length + 2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3331 | cifs_strfromUCS_le(tcon->nativeFileSystem, |
Steve French | e89dc92 | 2005-11-11 15:18:19 -0800 | [diff] [blame] | 3332 | (__le16 *) bcc_ptr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3333 | length, nls_codepage); |
| 3334 | bcc_ptr += 2 * length; |
| 3335 | bcc_ptr[0] = 0; /* null terminate the string */ |
| 3336 | bcc_ptr[1] = 0; |
| 3337 | bcc_ptr += 2; |
| 3338 | } |
| 3339 | /* else do not bother copying these informational fields */ |
| 3340 | } else { |
| 3341 | length = strnlen(bcc_ptr, 1024); |
| 3342 | if ((bcc_ptr + length) - |
| 3343 | pByteArea(smb_buffer_response) <= |
| 3344 | BCC(smb_buffer_response)) { |
Jesper Juhl | f99d49a | 2005-11-07 01:01:34 -0800 | [diff] [blame] | 3345 | kfree(tcon->nativeFileSystem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3346 | tcon->nativeFileSystem = |
Pekka Enberg | e915fc4 | 2005-09-06 15:18:35 -0700 | [diff] [blame] | 3347 | kzalloc(length + 1, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3348 | strncpy(tcon->nativeFileSystem, bcc_ptr, |
| 3349 | length); |
| 3350 | } |
| 3351 | /* else do not bother copying these informational fields */ |
| 3352 | } |
| 3353 | tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport); |
| 3354 | cFYI(1, ("Tcon flags: 0x%x ", tcon->Flags)); |
| 3355 | } else if ((rc == 0) && tcon == NULL) { |
| 3356 | /* all we need to save for IPC$ connection */ |
| 3357 | ses->ipc_tid = smb_buffer_response->Tid; |
| 3358 | } |
| 3359 | |
| 3360 | if (smb_buffer) |
| 3361 | cifs_buf_release(smb_buffer); |
| 3362 | return rc; |
| 3363 | } |
| 3364 | |
| 3365 | int |
| 3366 | cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) |
| 3367 | { |
| 3368 | int rc = 0; |
| 3369 | int xid; |
| 3370 | struct cifsSesInfo *ses = NULL; |
| 3371 | struct task_struct *cifsd_task; |
| 3372 | |
| 3373 | xid = GetXid(); |
| 3374 | |
| 3375 | if (cifs_sb->tcon) { |
| 3376 | ses = cifs_sb->tcon->ses; /* save ptr to ses before delete tcon!*/ |
| 3377 | rc = CIFSSMBTDis(xid, cifs_sb->tcon); |
| 3378 | if (rc == -EBUSY) { |
| 3379 | FreeXid(xid); |
| 3380 | return 0; |
| 3381 | } |
| 3382 | tconInfoFree(cifs_sb->tcon); |
| 3383 | if ((ses) && (ses->server)) { |
| 3384 | /* save off task so we do not refer to ses later */ |
| 3385 | cifsd_task = ses->server->tsk; |
| 3386 | cFYI(1, ("About to do SMBLogoff ")); |
| 3387 | rc = CIFSSMBLogoff(xid, ses); |
| 3388 | if (rc == -EBUSY) { |
| 3389 | FreeXid(xid); |
| 3390 | return 0; |
| 3391 | } else if (rc == -ESHUTDOWN) { |
| 3392 | cFYI(1,("Waking up socket by sending it signal")); |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 3393 | if(cifsd_task) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3394 | send_sig(SIGKILL,cifsd_task,1); |
Steve French | f191401 | 2005-08-18 09:37:34 -0700 | [diff] [blame] | 3395 | wait_for_completion(&cifsd_complete); |
| 3396 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3397 | rc = 0; |
| 3398 | } /* else - we have an smb session |
| 3399 | left on this socket do not kill cifsd */ |
| 3400 | } else |
| 3401 | cFYI(1, ("No session or bad tcon")); |
| 3402 | } |
| 3403 | |
| 3404 | cifs_sb->tcon = NULL; |
Nishanth Aravamudan | 041e0e3 | 2005-09-10 00:27:23 -0700 | [diff] [blame] | 3405 | if (ses) |
| 3406 | schedule_timeout_interruptible(msecs_to_jiffies(500)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3407 | if (ses) |
| 3408 | sesInfoFree(ses); |
| 3409 | |
| 3410 | FreeXid(xid); |
| 3411 | return rc; /* BB check if we should always return zero here */ |
| 3412 | } |
| 3413 | |
| 3414 | int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, |
| 3415 | struct nls_table * nls_info) |
| 3416 | { |
| 3417 | int rc = 0; |
| 3418 | char ntlm_session_key[CIFS_SESSION_KEY_SIZE]; |
| 3419 | int ntlmv2_flag = FALSE; |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 3420 | int first_time = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3421 | |
| 3422 | /* what if server changes its buffer size after dropping the session? */ |
| 3423 | if(pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ { |
| 3424 | rc = CIFSSMBNegotiate(xid, pSesInfo); |
| 3425 | if(rc == -EAGAIN) /* retry only once on 1st time connection */ { |
| 3426 | rc = CIFSSMBNegotiate(xid, pSesInfo); |
| 3427 | if(rc == -EAGAIN) |
| 3428 | rc = -EHOSTDOWN; |
| 3429 | } |
| 3430 | if(rc == 0) { |
| 3431 | spin_lock(&GlobalMid_Lock); |
| 3432 | if(pSesInfo->server->tcpStatus != CifsExiting) |
| 3433 | pSesInfo->server->tcpStatus = CifsGood; |
| 3434 | else |
| 3435 | rc = -EHOSTDOWN; |
| 3436 | spin_unlock(&GlobalMid_Lock); |
| 3437 | |
| 3438 | } |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 3439 | first_time = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3440 | } |
| 3441 | if (!rc) { |
| 3442 | pSesInfo->capabilities = pSesInfo->server->capabilities; |
| 3443 | if(linuxExtEnabled == 0) |
| 3444 | pSesInfo->capabilities &= (~CAP_UNIX); |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 3445 | /* pSesInfo->sequence_number = 0;*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3446 | cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x Time Zone: %d", |
| 3447 | pSesInfo->server->secMode, |
| 3448 | pSesInfo->server->capabilities, |
| 3449 | pSesInfo->server->timeZone)); |
| 3450 | if (extended_security |
| 3451 | && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY) |
| 3452 | && (pSesInfo->server->secType == NTLMSSP)) { |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 3453 | cFYI(1, ("New style sesssetup")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3454 | rc = CIFSSpnegoSessSetup(xid, pSesInfo, |
| 3455 | NULL /* security blob */, |
| 3456 | 0 /* blob length */, |
| 3457 | nls_info); |
| 3458 | } else if (extended_security |
| 3459 | && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY) |
| 3460 | && (pSesInfo->server->secType == RawNTLMSSP)) { |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 3461 | cFYI(1, ("NTLMSSP sesssetup")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3462 | rc = CIFSNTLMSSPNegotiateSessSetup(xid, |
| 3463 | pSesInfo, |
| 3464 | &ntlmv2_flag, |
| 3465 | nls_info); |
| 3466 | if (!rc) { |
| 3467 | if(ntlmv2_flag) { |
| 3468 | char * v2_response; |
| 3469 | cFYI(1,("Can use more secure NTLM version 2 password hash")); |
| 3470 | if(CalcNTLMv2_partial_mac_key(pSesInfo, |
| 3471 | nls_info)) { |
| 3472 | rc = -ENOMEM; |
| 3473 | goto ss_err_exit; |
| 3474 | } else |
| 3475 | v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL); |
| 3476 | if(v2_response) { |
| 3477 | CalcNTLMv2_response(pSesInfo,v2_response); |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 3478 | /* if(first_time) |
| 3479 | cifs_calculate_ntlmv2_mac_key( |
| 3480 | pSesInfo->server->mac_signing_key, |
| 3481 | response, ntlm_session_key, */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3482 | kfree(v2_response); |
| 3483 | /* BB Put dummy sig in SessSetup PDU? */ |
| 3484 | } else { |
| 3485 | rc = -ENOMEM; |
| 3486 | goto ss_err_exit; |
| 3487 | } |
| 3488 | |
| 3489 | } else { |
| 3490 | SMBNTencrypt(pSesInfo->password, |
| 3491 | pSesInfo->server->cryptKey, |
| 3492 | ntlm_session_key); |
| 3493 | |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 3494 | if(first_time) |
| 3495 | cifs_calculate_mac_key( |
| 3496 | pSesInfo->server->mac_signing_key, |
| 3497 | ntlm_session_key, |
| 3498 | pSesInfo->password); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3499 | } |
| 3500 | /* for better security the weaker lanman hash not sent |
| 3501 | in AuthSessSetup so we no longer calculate it */ |
| 3502 | |
| 3503 | rc = CIFSNTLMSSPAuthSessSetup(xid, |
| 3504 | pSesInfo, |
| 3505 | ntlm_session_key, |
| 3506 | ntlmv2_flag, |
| 3507 | nls_info); |
| 3508 | } |
| 3509 | } else { /* old style NTLM 0.12 session setup */ |
| 3510 | SMBNTencrypt(pSesInfo->password, |
| 3511 | pSesInfo->server->cryptKey, |
| 3512 | ntlm_session_key); |
| 3513 | |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 3514 | if(first_time) |
| 3515 | cifs_calculate_mac_key( |
| 3516 | pSesInfo->server->mac_signing_key, |
| 3517 | ntlm_session_key, pSesInfo->password); |
| 3518 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3519 | rc = CIFSSessSetup(xid, pSesInfo, |
| 3520 | ntlm_session_key, nls_info); |
| 3521 | } |
| 3522 | if (rc) { |
| 3523 | cERROR(1,("Send error in SessSetup = %d",rc)); |
| 3524 | } else { |
| 3525 | cFYI(1,("CIFS Session Established successfully")); |
| 3526 | pSesInfo->status = CifsGood; |
| 3527 | } |
| 3528 | } |
| 3529 | ss_err_exit: |
| 3530 | return rc; |
| 3531 | } |
| 3532 | |