Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 3064 insertions, 0 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
new file mode 100644
index 000000000000..40470b9d5477
--- /dev/null
+++ b/fs/cifs/connect.c
@@ -0,0 +1,3064 @@
+/*
+ *   fs/cifs/connect.c
+ *
+ *   Copyright (C) International Business Machines  Corp., 2002,2004
+ *   Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ *   This library is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Lesser General Public License as published
+ *   by the Free Software Foundation; either version 2.1 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This library is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU Lesser General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Lesser General Public License
+ *   along with this library; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
+ */
+#include <linux/fs.h>
+#include <linux/net.h>
+#include <linux/string.h>
+#include <linux/list.h>
+#include <linux/wait.h>
+#include <linux/ipv6.h>
+#include <linux/pagemap.h>
+#include <linux/ctype.h>
+#include <linux/utsname.h>
+#include <linux/mempool.h>
+#include <asm/uaccess.h>
+#include <asm/processor.h>
+#include "cifspdu.h"
+#include "cifsglob.h"
+#include "cifsproto.h"
+#include "cifs_unicode.h"
+#include "cifs_debug.h"
+#include "cifs_fs_sb.h"
+#include "ntlmssp.h"
+#include "nterr.h"
+#include "rfc1002pdu.h"
+
+#define CIFS_PORT 445
+#define RFC1001_PORT 139
+
+extern void SMBencrypt(unsigned char *passwd, unsigned char *c8,
+		       unsigned char *p24);
+extern void SMBNTencrypt(unsigned char *passwd, unsigned char *c8,
+			 unsigned char *p24);
+
+extern mempool_t *cifs_req_poolp;
+
+struct smb_vol {
+	char *username;
+	char *password;
+	char *domainname;
+	char *UNC;
+	char *UNCip;
+	char *in6_addr;  /* ipv6 address as human readable form of in6_addr */
+	char *iocharset;  /* local code page for mapping to and from Unicode */
+	char source_rfc1001_name[16]; /* netbios name of client */
+	uid_t linux_uid;
+	gid_t linux_gid;
+	mode_t file_mode;
+	mode_t dir_mode;
+	unsigned rw:1;
+	unsigned retry:1;
+	unsigned intr:1;
+	unsigned setuids:1;
+	unsigned noperm:1;
+	unsigned no_psx_acl:1; /* set if posix acl support should be disabled */
+	unsigned no_xattr:1;   /* set if xattr (EA) support should be disabled*/
+	unsigned server_ino:1; /* use inode numbers from server ie UniqueId */
+	unsigned direct_io:1;
+	unsigned int rsize;
+	unsigned int wsize;
+	unsigned int sockopt;
+	unsigned short int port;
+};
+
+static int ipv4_connect(struct sockaddr_in *psin_server, 
+			struct socket **csocket,
+			char * netb_name);
+static int ipv6_connect(struct sockaddr_in6 *psin_server, 
+			struct socket **csocket);
+
+
+	/* 
+	 * cifs tcp session reconnection
+	 * 
+	 * mark tcp session as reconnecting so temporarily locked
+	 * mark all smb sessions as reconnecting for tcp session
+	 * reconnect tcp session
+	 * wake up waiters on reconnection? - (not needed currently)
+	 */
+
+int
+cifs_reconnect(struct TCP_Server_Info *server)
+{
+	int rc = 0;
+	struct list_head *tmp;
+	struct cifsSesInfo *ses;
+	struct cifsTconInfo *tcon;
+	struct mid_q_entry * mid_entry;
+	
+	spin_lock(&GlobalMid_Lock);
+	if(server->tcpStatus == CifsExiting) {
+		/* the demux thread will exit normally 
+		next time through the loop */
+		spin_unlock(&GlobalMid_Lock);
+		return rc;
+	} else
+		server->tcpStatus = CifsNeedReconnect;
+	spin_unlock(&GlobalMid_Lock);
+	server->maxBuf = 0;
+
+	cFYI(1, ("Reconnecting tcp session "));
+
+	/* before reconnecting the tcp session, mark the smb session (uid)
+		and the tid bad so they are not used until reconnected */
+	read_lock(&GlobalSMBSeslock);
+	list_for_each(tmp, &GlobalSMBSessionList) {
+		ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
+		if (ses->server) {
+			if (ses->server == server) {
+				ses->status = CifsNeedReconnect;
+				ses->ipc_tid = 0;
+			}
+		}
+		/* else tcp and smb sessions need reconnection */
+	}
+	list_for_each(tmp, &GlobalTreeConnectionList) {
+		tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
+		if((tcon) && (tcon->ses) && (tcon->ses->server == server)) {
+			tcon->tidStatus = CifsNeedReconnect;
+		}
+	}
+	read_unlock(&GlobalSMBSeslock);
+	/* do not want to be sending data on a socket we are freeing */
+	down(&server->tcpSem); 
+	if(server->ssocket) {
+		cFYI(1,("State: 0x%x Flags: 0x%lx", server->ssocket->state,
+			server->ssocket->flags));
+		server->ssocket->ops->shutdown(server->ssocket,SEND_SHUTDOWN);
+		cFYI(1,("Post shutdown state: 0x%x Flags: 0x%lx", server->ssocket->state,
+			server->ssocket->flags));
+		sock_release(server->ssocket);
+		server->ssocket = NULL;
+	}
+
+	spin_lock(&GlobalMid_Lock);
+	list_for_each(tmp, &server->pending_mid_q) {
+		mid_entry = list_entry(tmp, struct
+					mid_q_entry,
+					qhead);
+		if(mid_entry) {
+			if(mid_entry->midState == MID_REQUEST_SUBMITTED) {
+				/* Mark other intransit requests as needing retry so 
+				  we do not immediately mark the session bad again 
+				  (ie after we reconnect below) as they timeout too */
+				mid_entry->midState = MID_RETRY_NEEDED;
+			}
+		}
+	}
+	spin_unlock(&GlobalMid_Lock);
+	up(&server->tcpSem); 
+
+	while ((server->tcpStatus != CifsExiting) && (server->tcpStatus != CifsGood))
+	{
+		if(server->protocolType == IPV6) {
+			rc = ipv6_connect(&server->addr.sockAddr6,&server->ssocket);
+		} else {
+			rc = ipv4_connect(&server->addr.sockAddr, 
+					&server->ssocket,
+					server->workstation_RFC1001_name);
+		}
+		if(rc) {
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule_timeout(3 * HZ);
+		} else {
+			atomic_inc(&tcpSesReconnectCount);
+			spin_lock(&GlobalMid_Lock);
+			if(server->tcpStatus != CifsExiting)
+				server->tcpStatus = CifsGood;
+			spin_unlock(&GlobalMid_Lock);
+	/*		atomic_set(&server->inFlight,0);*/
+			wake_up(&server->response_q);
+		}
+	}
+	return rc;
+}
+
+static int
+cifs_demultiplex_thread(struct TCP_Server_Info *server)
+{
+	int length;
+	unsigned int pdu_length, total_read;
+	struct smb_hdr *smb_buffer = NULL;
+	struct msghdr smb_msg;
+	struct kvec iov;
+	struct socket *csocket = server->ssocket;
+	struct list_head *tmp;
+	struct cifsSesInfo *ses;
+	struct task_struct *task_to_wake = NULL;
+	struct mid_q_entry *mid_entry;
+	char *temp;
+
+	daemonize("cifsd");
+	allow_signal(SIGKILL);
+	current->flags |= PF_MEMALLOC;
+	server->tsk = current;	/* save process info to wake at shutdown */
+	cFYI(1, ("Demultiplex PID: %d", current->pid));
+	write_lock(&GlobalSMBSeslock); 
+	atomic_inc(&tcpSesAllocCount);
+	length = tcpSesAllocCount.counter;
+	write_unlock(&GlobalSMBSeslock);
+	if(length  > 1) {
+		mempool_resize(cifs_req_poolp,
+			length + cifs_min_rcv,
+			GFP_KERNEL);
+	}
+
+	while (server->tcpStatus != CifsExiting) {
+		if (smb_buffer == NULL)
+			smb_buffer = cifs_buf_get();
+		else
+			memset(smb_buffer, 0, sizeof (struct smb_hdr));
+
+		if (smb_buffer == NULL) {
+			cERROR(1,("Can not get memory for SMB response"));
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule_timeout(HZ * 3); /* give system time to free memory */
+			continue;
+		}
+		iov.iov_base = smb_buffer;
+		iov.iov_len = 4;
+		smb_msg.msg_control = NULL;
+		smb_msg.msg_controllen = 0;
+		length =
+		    kernel_recvmsg(csocket, &smb_msg,
+				 &iov, 1, 4, 0 /* BB see socket.h flags */);
+
+		if(server->tcpStatus == CifsExiting) {
+			break;
+		} else if (server->tcpStatus == CifsNeedReconnect) {
+			cFYI(1,("Reconnecting after server stopped responding"));
+			cifs_reconnect(server);
+			cFYI(1,("call to reconnect done"));
+			csocket = server->ssocket;
+			continue;
+		} else if ((length == -ERESTARTSYS) || (length == -EAGAIN)) {
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule_timeout(1); /* minimum sleep to prevent looping
+				allowing socket to clear and app threads to set
+				tcpStatus CifsNeedReconnect if server hung */
+			continue;
+		} else if (length <= 0) {
+			if(server->tcpStatus == CifsNew) {
+				cFYI(1,("tcp session abended prematurely (after SMBnegprot)"));
+				/* some servers kill tcp session rather than returning
+					smb negprot error in which case reconnecting here is
+					not going to help - return error to mount */
+				break;
+			}
+			if(length == -EINTR) { 
+				cFYI(1,("cifsd thread killed"));
+				break;
+			}
+			cFYI(1,("Reconnecting after unexpected peek error %d",length));
+			cifs_reconnect(server);
+			csocket = server->ssocket;
+			wake_up(&server->response_q);
+			continue;
+		} else if (length > 3) {
+			pdu_length = ntohl(smb_buffer->smb_buf_length);
+		/* Only read pdu_length after below checks for too short (due
+		   to e.g. int overflow) and too long ie beyond end of buf */
+			cFYI(1,("rfc1002 length(big endian)0x%x)", pdu_length+4));
+
+			temp = (char *) smb_buffer;
+			if (temp[0] == (char) RFC1002_SESSION_KEEP_ALIVE) {
+				cFYI(0,("Received 4 byte keep alive packet"));
+			} else if (temp[0] == (char) RFC1002_POSITIVE_SESSION_RESPONSE) {
+					cFYI(1,("Good RFC 1002 session rsp"));
+			} else if (temp[0] == (char)RFC1002_NEGATIVE_SESSION_RESPONSE) {
+				/* we get this from Windows 98 instead of error on SMB negprot response */
+				cFYI(1,("Negative RFC 1002 Session Response Error 0x%x)",temp[4]));
+				if(server->tcpStatus == CifsNew) {
+					/* if nack on negprot (rather than 
+					ret of smb negprot error) reconnecting
+					not going to help, ret error to mount */
+					break;
+				} else {
+					/* give server a second to
+					clean up before reconnect attempt */
+					set_current_state(TASK_INTERRUPTIBLE);
+					schedule_timeout(HZ);
+					/* always try 445 first on reconnect
+					since we get NACK on some if we ever
+					connected to port 139 (the NACK is 
+					since we do not begin with RFC1001
+					session initialize frame) */
+					server->addr.sockAddr.sin_port = htons(CIFS_PORT);
+					cifs_reconnect(server);
+					csocket = server->ssocket;
+					wake_up(&server->response_q);
+					continue;
+				}
+			} else if (temp[0] != (char) 0) {
+				cERROR(1,("Unknown RFC 1002 frame"));
+				cifs_dump_mem(" Received Data: ", temp, length);
+				cifs_reconnect(server);
+				csocket = server->ssocket;
+				continue;
+			} else {
+				if((pdu_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4)
+				    || (pdu_length < sizeof (struct smb_hdr) - 1 - 4)) {
+					cERROR(1,
+					    ("Invalid size SMB length %d and pdu_length %d",
+						length, pdu_length+4));
+					cifs_reconnect(server);
+					csocket = server->ssocket;
+					wake_up(&server->response_q);
+					continue;
+				} else { /* length ok */
+					length = 0;
+					iov.iov_base = 4 + (char *)smb_buffer;
+					iov.iov_len = pdu_length;
+					for (total_read = 0; 
+					     total_read < pdu_length;
+					     total_read += length) {
+						length = kernel_recvmsg(csocket, &smb_msg, 
+							&iov, 1,
+							pdu_length - total_read, 0);
+						if (length == 0) {
+							cERROR(1,
+							       ("Zero length receive when expecting %d ",
+								pdu_length - total_read));
+							cifs_reconnect(server);
+							csocket = server->ssocket;
+							wake_up(&server->response_q);
+							continue;
+						}
+					}
+					length += 4; /* account for rfc1002 hdr */
+				}
+
+				dump_smb(smb_buffer, length);
+				if (checkSMB
+				    (smb_buffer, smb_buffer->Mid, total_read+4)) {
+					cERROR(1, ("Bad SMB Received "));
+					continue;
+				}
+
+				task_to_wake = NULL;
+				spin_lock(&GlobalMid_Lock);
+				list_for_each(tmp, &server->pending_mid_q) {
+					mid_entry = list_entry(tmp, struct
+							       mid_q_entry,
+							       qhead);
+
+					if ((mid_entry->mid == smb_buffer->Mid) && (mid_entry->midState == MID_REQUEST_SUBMITTED)) {
+						cFYI(1,
+						     (" Mid 0x%x matched - waking up ",mid_entry->mid));
+						task_to_wake = mid_entry->tsk;
+						mid_entry->resp_buf =
+						    smb_buffer;
+						mid_entry->midState =
+						    MID_RESPONSE_RECEIVED;
+					}
+				}
+				spin_unlock(&GlobalMid_Lock);
+				if (task_to_wake) {
+					smb_buffer = NULL;	/* will be freed by users thread after he is done */
+					wake_up_process(task_to_wake);
+				} else if (is_valid_oplock_break(smb_buffer) == FALSE) {                          
+					cERROR(1, ("No task to wake, unknown frame rcvd!"));
+					cifs_dump_mem("Received Data is: ",temp,sizeof(struct smb_hdr));
+				}
+			}
+		} else {
+			cFYI(1,
+			    ("Frame less than four bytes received  %d bytes long.",
+			      length));
+			cifs_reconnect(server);
+			csocket = server->ssocket;
+			wake_up(&server->response_q);
+			continue;
+		}
+	}
+	spin_lock(&GlobalMid_Lock);
+	server->tcpStatus = CifsExiting;
+	server->tsk = NULL;
+	atomic_set(&server->inFlight, 0);
+	spin_unlock(&GlobalMid_Lock);
+	/* Although there should not be any requests blocked on 
+	this queue it can not hurt to be paranoid and try to wake up requests
+	that may haven been blocked when more than 50 at time were on the wire 
+	to the same server - they now will see the session is in exit state
+	and get out of SendReceive.  */
+	wake_up_all(&server->request_q);
+	/* give those requests time to exit */
+	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ/8);
+
+	if(server->ssocket) {
+		sock_release(csocket);
+		server->ssocket = NULL;
+	}
+	if (smb_buffer) /* buffer usually freed in free_mid - need to free it on error or exit */
+		cifs_buf_release(smb_buffer);
+
+	read_lock(&GlobalSMBSeslock);
+	if (list_empty(&server->pending_mid_q)) {
+		/* loop through server session structures attached to this and mark them dead */
+		list_for_each(tmp, &GlobalSMBSessionList) {
+			ses =
+			    list_entry(tmp, struct cifsSesInfo,
+				       cifsSessionList);
+			if (ses->server == server) {
+				ses->status = CifsExiting;
+				ses->server = NULL;
+			}
+		}
+		read_unlock(&GlobalSMBSeslock);
+	} else {
+		spin_lock(&GlobalMid_Lock);
+		list_for_each(tmp, &server->pending_mid_q) {
+		mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
+			if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
+				cFYI(1,
+					 (" Clearing Mid 0x%x - waking up ",mid_entry->mid));
+				task_to_wake = mid_entry->tsk;
+				if(task_to_wake) {
+					wake_up_process(task_to_wake);
+				}
+			}
+		}
+		spin_unlock(&GlobalMid_Lock);
+		read_unlock(&GlobalSMBSeslock);
+		set_current_state(TASK_INTERRUPTIBLE);
+		/* 1/8th of sec is more than enough time for them to exit */
+		schedule_timeout(HZ/8); 
+	}
+
+	if (list_empty(&server->pending_mid_q)) {
+		/* mpx threads have not exited yet give them 
+		at least the smb send timeout time for long ops */
+		cFYI(1, ("Wait for exit from demultiplex thread"));
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(46 * HZ);	
+		/* if threads still have not exited they are probably never
+		coming home not much else we can do but free the memory */
+	}
+	kfree(server);
+
+	write_lock(&GlobalSMBSeslock);
+	atomic_dec(&tcpSesAllocCount);
+	length = tcpSesAllocCount.counter;
+	write_unlock(&GlobalSMBSeslock);
+	if(length  > 0) {
+		mempool_resize(cifs_req_poolp,
+			length + cifs_min_rcv,
+			GFP_KERNEL);
+	}
+
+	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ/4);
+	return 0;
+}
+
+static void * 
+cifs_kcalloc(size_t size, unsigned int __nocast type)
+{
+	void *addr;
+	addr = kmalloc(size, type);
+	if (addr)
+		memset(addr, 0, size);
+	return addr;
+}
+
+static int
+cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
+{
+	char *value;
+	char *data;
+	unsigned int  temp_len, i, j;
+	char separator[2];
+
+	separator[0] = ',';
+	separator[1] = 0; 
+
+	memset(vol->source_rfc1001_name,0x20,15);
+	for(i=0;i < strnlen(system_utsname.nodename,15);i++) {
+		/* does not have to be a perfect mapping since the field is
+		informational, only used for servers that do not support
+		port 445 and it can be overridden at mount time */
+		vol->source_rfc1001_name[i] = toupper(system_utsname.nodename[i]);
+	}
+	vol->source_rfc1001_name[15] = 0;
+
+	vol->linux_uid = current->uid;	/* current->euid instead? */
+	vol->linux_gid = current->gid;
+	vol->dir_mode = S_IRWXUGO;
+	/* 2767 perms indicate mandatory locking support */
+	vol->file_mode = S_IALLUGO & ~(S_ISUID | S_IXGRP);
+
+	/* vol->retry default is 0 (i.e. "soft" limited retry not hard retry) */
+	vol->rw = TRUE;
+
+	if (!options)
+		return 1;
+
+	if(strncmp(options,"sep=",4) == 0) {
+		if(options[4] != 0) {
+			separator[0] = options[4];
+			options += 5;
+		} else {
+			cFYI(1,("Null separator not allowed"));
+		}
+	}
+		
+	while ((data = strsep(&options, separator)) != NULL) {
+		if (!*data)
+			continue;
+		if ((value = strchr(data, '=')) != NULL)
+			*value++ = '\0';
+
+		if (strnicmp(data, "user_xattr",10) == 0) {/*parse before user*/
+			vol->no_xattr = 0;
+		} else if (strnicmp(data, "nouser_xattr",12) == 0) {
+			vol->no_xattr = 1;
+		} else if (strnicmp(data, "user", 4) == 0) {
+			if (!value || !*value) {
+				printk(KERN_WARNING
+				       "CIFS: invalid or missing username\n");
+				return 1;	/* needs_arg; */
+			}
+			if (strnlen(value, 200) < 200) {
+				vol->username = value;
+			} else {
+				printk(KERN_WARNING "CIFS: username too long\n");
+				return 1;
+			}
+		} else if (strnicmp(data, "pass", 4) == 0) {
+			if (!value) {
+				vol->password = NULL;
+				continue;
+			} else if(value[0] == 0) {
+				/* check if string begins with double comma
+				   since that would mean the password really
+				   does start with a comma, and would not
+				   indicate an empty string */
+				if(value[1] != separator[0]) {
+					vol->password = NULL;
+					continue;
+				}
+			}
+			temp_len = strlen(value);
+			/* removed password length check, NTLM passwords
+				can be arbitrarily long */
+
+			/* if comma in password, the string will be 
+			prematurely null terminated.  Commas in password are
+			specified across the cifs mount interface by a double
+			comma ie ,, and a comma used as in other cases ie ','
+			as a parameter delimiter/separator is single and due
+			to the strsep above is temporarily zeroed. */
+
+			/* NB: password legally can have multiple commas and
+			the only illegal character in a password is null */
+
+			if ((value[temp_len] == 0) && (value[temp_len+1] == separator[0])) {
+				/* reinsert comma */
+				value[temp_len] = separator[0];
+				temp_len+=2;  /* move after the second comma */
+				while(value[temp_len] != 0)  {
+					if (value[temp_len] == separator[0]) {
+						if (value[temp_len+1] == separator[0]) {
+							temp_len++; /* skip second comma */
+						} else { 
+						/* single comma indicating start
+							 of next parm */
+							break;
+						}
+					}
+					temp_len++;
+				}
+				if(value[temp_len] == 0) {
+					options = NULL;
+				} else {
+					value[temp_len] = 0;
+					/* point option to start of next parm */
+					options = value + temp_len + 1;
+				}
+				/* go from value to value + temp_len condensing 
+				double commas to singles. Note that this ends up
+				allocating a few bytes too many, which is ok */
+				vol->password = cifs_kcalloc(temp_len, GFP_KERNEL);
+				for(i=0,j=0;i<temp_len;i++,j++) {
+					vol->password[j] = value[i];
+					if(value[i] == separator[0] && value[i+1] == separator[0]) {
+						/* skip second comma */
+						i++;
+					}
+				}
+				vol->password[j] = 0;
+			} else {
+				vol->password = cifs_kcalloc(temp_len + 1, GFP_KERNEL);
+				strcpy(vol->password, value);
+			}
+		} else if (strnicmp(data, "ip", 2) == 0) {
+			if (!value || !*value) {
+				vol->UNCip = NULL;
+			} else if (strnlen(value, 35) < 35) {
+				vol->UNCip = value;
+			} else {
+				printk(KERN_WARNING "CIFS: ip address too long\n");
+				return 1;
+			}
+		} else if ((strnicmp(data, "unc", 3) == 0)
+			   || (strnicmp(data, "target", 6) == 0)
+			   || (strnicmp(data, "path", 4) == 0)) {
+			if (!value || !*value) {
+				printk(KERN_WARNING
+				       "CIFS: invalid path to network resource\n");
+				return 1;	/* needs_arg; */
+			}
+			if ((temp_len = strnlen(value, 300)) < 300) {
+				vol->UNC = kmalloc(temp_len+1,GFP_KERNEL);
+				if(vol->UNC == NULL)
+					return 1;
+				strcpy(vol->UNC,value);
+				if (strncmp(vol->UNC, "//", 2) == 0) {
+					vol->UNC[0] = '\\';
+					vol->UNC[1] = '\\';
+				} else if (strncmp(vol->UNC, "\\\\", 2) != 0) {	                   
+					printk(KERN_WARNING
+					       "CIFS: UNC Path does not begin with // or \\\\ \n");
+					return 1;
+				}
+			} else {
+				printk(KERN_WARNING "CIFS: UNC name too long\n");
+				return 1;
+			}
+		} else if ((strnicmp(data, "domain", 3) == 0)
+			   || (strnicmp(data, "workgroup", 5) == 0)) {
+			if (!value || !*value) {
+				printk(KERN_WARNING "CIFS: invalid domain name\n");
+				return 1;	/* needs_arg; */
+			}
+			/* BB are there cases in which a comma can be valid in
+			a domain name and need special handling? */
+			if (strnlen(value, 65) < 65) {
+				vol->domainname = value;
+				cFYI(1, ("Domain name set"));
+			} else {
+				printk(KERN_WARNING "CIFS: domain name too long\n");
+				return 1;
+			}
+		} else if (strnicmp(data, "iocharset", 9) == 0) {
+			if (!value || !*value) {
+				printk(KERN_WARNING "CIFS: invalid iocharset specified\n");
+				return 1;	/* needs_arg; */
+			}
+			if (strnlen(value, 65) < 65) {
+				if(strnicmp(value,"default",7))
+					vol->iocharset = value;
+				/* if iocharset not set load_nls_default used by caller */
+				cFYI(1, ("iocharset set to %s",value));
+			} else {
+				printk(KERN_WARNING "CIFS: iocharset name too long.\n");
+				return 1;
+			}
+		} else if (strnicmp(data, "uid", 3) == 0) {
+			if (value && *value) {
+				vol->linux_uid =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "gid", 3) == 0) {
+			if (value && *value) {
+				vol->linux_gid =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "file_mode", 4) == 0) {
+			if (value && *value) {
+				vol->file_mode =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "dir_mode", 4) == 0) {
+			if (value && *value) {
+				vol->dir_mode =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "dirmode", 4) == 0) {
+			if (value && *value) {
+				vol->dir_mode =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "port", 4) == 0) {
+			if (value && *value) {
+				vol->port =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "rsize", 5) == 0) {
+			if (value && *value) {
+				vol->rsize =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "wsize", 5) == 0) {
+			if (value && *value) {
+				vol->wsize =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "sockopt", 5) == 0) {
+			if (value && *value) {
+				vol->sockopt =
+					simple_strtoul(value, &value, 0);
+			}
+		} else if (strnicmp(data, "netbiosname", 4) == 0) {
+			if (!value || !*value || (*value == ' ')) {
+				cFYI(1,("invalid (empty) netbiosname specified"));
+			} else {
+				memset(vol->source_rfc1001_name,0x20,15);
+				for(i=0;i<15;i++) {
+				/* BB are there cases in which a comma can be 
+				valid in this workstation netbios name (and need
+				special handling)? */
+
+				/* We do not uppercase netbiosname for user */
+					if (value[i]==0)
+						break;
+					else 
+						vol->source_rfc1001_name[i] = value[i];
+				}
+				/* The string has 16th byte zero still from
+				set at top of the function  */
+				if((i==15) && (value[i] != 0))
+					printk(KERN_WARNING "CIFS: netbiosname longer than 15 and was truncated.\n");
+			}
+		} else if (strnicmp(data, "credentials", 4) == 0) {
+			/* ignore */
+		} else if (strnicmp(data, "version", 3) == 0) {
+			/* ignore */
+		} else if (strnicmp(data, "guest",5) == 0) {
+			/* ignore */
+		} else if (strnicmp(data, "rw", 2) == 0) {
+			vol->rw = TRUE;
+		} else if ((strnicmp(data, "suid", 4) == 0) ||
+				   (strnicmp(data, "nosuid", 6) == 0) ||
+				   (strnicmp(data, "exec", 4) == 0) ||
+				   (strnicmp(data, "noexec", 6) == 0) ||
+				   (strnicmp(data, "nodev", 5) == 0) ||
+				   (strnicmp(data, "noauto", 6) == 0) ||
+				   (strnicmp(data, "dev", 3) == 0)) {
+			/*  The mount tool or mount.cifs helper (if present)
+				uses these opts to set flags, and the flags are read
+				by the kernel vfs layer before we get here (ie
+				before read super) so there is no point trying to
+				parse these options again and set anything and it
+				is ok to just ignore them */
+			continue;
+		} else if (strnicmp(data, "ro", 2) == 0) {
+			vol->rw = FALSE;
+		} else if (strnicmp(data, "hard", 4) == 0) {
+			vol->retry = 1;
+		} else if (strnicmp(data, "soft", 4) == 0) {
+			vol->retry = 0;
+		} else if (strnicmp(data, "perm", 4) == 0) {
+			vol->noperm = 0;
+		} else if (strnicmp(data, "noperm", 6) == 0) {
+			vol->noperm = 1;
+		} else if (strnicmp(data, "setuids", 7) == 0) {
+			vol->setuids = 1;
+		} else if (strnicmp(data, "nosetuids", 9) == 0) {
+			vol->setuids = 0;
+		} else if (strnicmp(data, "nohard", 6) == 0) {
+			vol->retry = 0;
+		} else if (strnicmp(data, "nosoft", 6) == 0) {
+			vol->retry = 1;
+		} else if (strnicmp(data, "nointr", 6) == 0) {
+			vol->intr = 0;
+		} else if (strnicmp(data, "intr", 4) == 0) {
+			vol->intr = 1;
+		} else if (strnicmp(data, "serverino",7) == 0) {
+			vol->server_ino = 1;
+		} else if (strnicmp(data, "noserverino",9) == 0) {
+			vol->server_ino = 0;
+		} else if (strnicmp(data, "acl",3) == 0) {
+			vol->no_psx_acl = 0;
+		} else if (strnicmp(data, "noacl",5) == 0) {
+			vol->no_psx_acl = 1;
+		} else if (strnicmp(data, "direct",6) == 0) {
+			vol->direct_io = 1;
+		} else if (strnicmp(data, "forcedirectio",13) == 0) {
+			vol->direct_io = 1;
+		} else if (strnicmp(data, "in6_addr",8) == 0) {
+			if (!value || !*value) {
+				vol->in6_addr = NULL;
+			} else if (strnlen(value, 49) == 48) {
+				vol->in6_addr = value;
+			} else {
+				printk(KERN_WARNING "CIFS: ip v6 address not 48 characters long\n");
+				return 1;
+			}
+		} else if (strnicmp(data, "noac", 4) == 0) {
+			printk(KERN_WARNING "CIFS: Mount option noac not supported. Instead set /proc/fs/cifs/LookupCacheEnabled to 0\n");
+		} else
+			printk(KERN_WARNING "CIFS: Unknown mount option %s\n",data);
+	}
+	if (vol->UNC == NULL) {
+		if(devname == NULL) {
+			printk(KERN_WARNING "CIFS: Missing UNC name for mount target\n");
+			return 1;
+		}
+		if ((temp_len = strnlen(devname, 300)) < 300) {
+			vol->UNC = kmalloc(temp_len+1,GFP_KERNEL);
+			if(vol->UNC == NULL)
+				return 1;
+			strcpy(vol->UNC,devname);
+			if (strncmp(vol->UNC, "//", 2) == 0) {
+				vol->UNC[0] = '\\';
+				vol->UNC[1] = '\\';
+			} else if (strncmp(vol->UNC, "\\\\", 2) != 0) {
+				printk(KERN_WARNING "CIFS: UNC Path does not begin with // or \\\\ \n");
+				return 1;
+			}
+		} else {
+			printk(KERN_WARNING "CIFS: UNC name too long\n");
+			return 1;
+		}
+	}
+	if(vol->UNCip == NULL)
+		vol->UNCip = &vol->UNC[2];
+
+	return 0;
+}
+
+static struct cifsSesInfo *
+cifs_find_tcp_session(struct in_addr * target_ip_addr, 
+		struct in6_addr *target_ip6_addr,
+		 char *userName, struct TCP_Server_Info **psrvTcp)
+{
+	struct list_head *tmp;
+	struct cifsSesInfo *ses;
+	*psrvTcp = NULL;
+	read_lock(&GlobalSMBSeslock);
+
+	list_for_each(tmp, &GlobalSMBSessionList) {
+		ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
+		if (ses->server) {
+			if((target_ip_addr && 
+				(ses->server->addr.sockAddr.sin_addr.s_addr
+				  == target_ip_addr->s_addr)) || (target_ip6_addr
+				&& memcmp(&ses->server->addr.sockAddr6.sin6_addr,
+					target_ip6_addr,sizeof(*target_ip6_addr)))){
+				/* BB lock server and tcp session and increment use count here?? */
+				*psrvTcp = ses->server;	/* found a match on the TCP session */
+				/* BB check if reconnection needed */
+				if (strncmp
+				    (ses->userName, userName,
+				     MAX_USERNAME_SIZE) == 0){
+					read_unlock(&GlobalSMBSeslock);
+					return ses;	/* found exact match on both tcp and SMB sessions */
+				}
+			}
+		}
+		/* else tcp and smb sessions need reconnection */
+	}
+	read_unlock(&GlobalSMBSeslock);
+	return NULL;
+}
+
+static struct cifsTconInfo *
+find_unc(__be32 new_target_ip_addr, char *uncName, char *userName)
+{
+	struct list_head *tmp;
+	struct cifsTconInfo *tcon;
+
+	read_lock(&GlobalSMBSeslock);
+	list_for_each(tmp, &GlobalTreeConnectionList) {
+		cFYI(1, ("Next tcon - "));
+		tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
+		if (tcon->ses) {
+			if (tcon->ses->server) {
+				cFYI(1,
+				     (" old ip addr: %x == new ip %x ?",
+				      tcon->ses->server->addr.sockAddr.sin_addr.
+				      s_addr, new_target_ip_addr));
+				if (tcon->ses->server->addr.sockAddr.sin_addr.
+				    s_addr == new_target_ip_addr) {
+	/* BB lock tcon and server and tcp session and increment use count here? */
+					/* found a match on the TCP session */
+					/* BB check if reconnection needed */
+					cFYI(1,("Matched ip, old UNC: %s == new: %s ?",
+					      tcon->treeName, uncName));
+					if (strncmp
+					    (tcon->treeName, uncName,
+					     MAX_TREE_SIZE) == 0) {
+						cFYI(1,
+						     ("Matched UNC, old user: %s == new: %s ?",
+						      tcon->treeName, uncName));
+						if (strncmp
+						    (tcon->ses->userName,
+						     userName,
+						     MAX_USERNAME_SIZE) == 0) {
+							read_unlock(&GlobalSMBSeslock);
+							return tcon;/* also matched user (smb session)*/
+						}
+					}
+				}
+			}
+		}
+	}
+	read_unlock(&GlobalSMBSeslock);
+	return NULL;
+}
+
+int
+connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
+		    const char *old_path, const struct nls_table *nls_codepage)
+{
+	unsigned char *referrals = NULL;
+	unsigned int num_referrals;
+	int rc = 0;
+
+	rc = get_dfs_path(xid, pSesInfo,old_path, nls_codepage, 
+			&num_referrals, &referrals);
+
+	/* BB Add in code to: if valid refrl, if not ip address contact
+		the helper that resolves tcp names, mount to it, try to 
+		tcon to it unmount it if fail */
+
+	if(referrals)
+		kfree(referrals);
+
+	return rc;
+}
+
+int
+get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
+			const char *old_path, const struct nls_table *nls_codepage, 
+			unsigned int *pnum_referrals, unsigned char ** preferrals)
+{
+	char *temp_unc;
+	int rc = 0;
+
+	*pnum_referrals = 0;
+
+	if (pSesInfo->ipc_tid == 0) {
+		temp_unc = kmalloc(2 /* for slashes */ +
+			strnlen(pSesInfo->serverName,SERVER_NAME_LEN_WITH_NULL * 2)
+				 + 1 + 4 /* slash IPC$ */  + 2,
+				GFP_KERNEL);
+		if (temp_unc == NULL)
+			return -ENOMEM;
+		temp_unc[0] = '\\';
+		temp_unc[1] = '\\';
+		strcpy(temp_unc + 2, pSesInfo->serverName);
+		strcpy(temp_unc + 2 + strlen(pSesInfo->serverName), "\\IPC$");
+		rc = CIFSTCon(xid, pSesInfo, temp_unc, NULL, nls_codepage);
+		cFYI(1,
+		     ("CIFS Tcon rc = %d ipc_tid = %d", rc,pSesInfo->ipc_tid));
+		kfree(temp_unc);
+	}
+	if (rc == 0)
+		rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals,
+				     pnum_referrals, nls_codepage);
+
+	return rc;
+}
+
+/* See RFC1001 section 14 on representation of Netbios names */
+static void rfc1002mangle(char * target,char * source, unsigned int length)
+{
+	unsigned int i,j;
+
+	for(i=0,j=0;i<(length);i++) {
+		/* mask a nibble at a time and encode */
+		target[j] = 'A' + (0x0F & (source[i] >> 4));
+		target[j+1] = 'A' + (0x0F & source[i]);
+		j+=2;
+	}
+
+}
+
+
+static int
+ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket, 
+			 char * netbios_name)
+{
+	int rc = 0;
+	int connected = 0;
+	__be16 orig_port = 0;
+
+	if(*csocket == NULL) {
+		rc = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, csocket);
+		if (rc < 0) {
+			cERROR(1, ("Error %d creating socket",rc));
+			*csocket = NULL;
+			return rc;
+		} else {
+		/* BB other socket options to set KEEPALIVE, NODELAY? */
+			cFYI(1,("Socket created"));
+			(*csocket)->sk->sk_allocation = GFP_NOFS; 
+		}
+	}
+
+	psin_server->sin_family = AF_INET;
+	if(psin_server->sin_port) { /* user overrode default port */
+		rc = (*csocket)->ops->connect(*csocket,
+				(struct sockaddr *) psin_server,
+				sizeof (struct sockaddr_in),0);
+		if (rc >= 0)
+			connected = 1;
+	} 
+
+	if(!connected) {
+		/* save original port so we can retry user specified port  
+			later if fall back ports fail this time  */
+		orig_port = psin_server->sin_port;
+
+		/* do not retry on the same port we just failed on */
+		if(psin_server->sin_port != htons(CIFS_PORT)) {
+			psin_server->sin_port = htons(CIFS_PORT);
+
+			rc = (*csocket)->ops->connect(*csocket,
+					(struct sockaddr *) psin_server,
+					sizeof (struct sockaddr_in),0);
+			if (rc >= 0)
+				connected = 1;
+		}
+	}
+	if (!connected) {
+		psin_server->sin_port = htons(RFC1001_PORT);
+		rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
+					      psin_server, sizeof (struct sockaddr_in),0);
+		if (rc >= 0) 
+			connected = 1;
+	}
+
+	/* give up here - unless we want to retry on different
+		protocol families some day */
+	if (!connected) {
+		if(orig_port)
+			psin_server->sin_port = orig_port;
+		cFYI(1,("Error %d connecting to server via ipv4",rc));
+		sock_release(*csocket);
+		*csocket = NULL;
+		return rc;
+	}
+	/* Eventually check for other socket options to change from 
+		the default. sock_setsockopt not used because it expects 
+		user space buffer */
+	(*csocket)->sk->sk_rcvtimeo = 7 * HZ;
+
+	/* send RFC1001 sessinit */
+
+	if(psin_server->sin_port == htons(RFC1001_PORT)) {
+		/* some servers require RFC1001 sessinit before sending
+		negprot - BB check reconnection in case where second 
+		sessinit is sent but no second negprot */
+		struct rfc1002_session_packet * ses_init_buf;
+		struct smb_hdr * smb_buf;
+		ses_init_buf = cifs_kcalloc(sizeof(struct rfc1002_session_packet), GFP_KERNEL);
+		if(ses_init_buf) {
+			ses_init_buf->trailer.session_req.called_len = 32;
+			rfc1002mangle(ses_init_buf->trailer.session_req.called_name,
+				DEFAULT_CIFS_CALLED_NAME,16);
+			ses_init_buf->trailer.session_req.calling_len = 32;
+			/* calling name ends in null (byte 16) from old smb
+			convention. */
+			if(netbios_name && (netbios_name[0] !=0)) {
+				rfc1002mangle(ses_init_buf->trailer.session_req.calling_name,
+					netbios_name,16);
+			} else {
+				rfc1002mangle(ses_init_buf->trailer.session_req.calling_name,
+					"LINUX_CIFS_CLNT",16);
+			}
+			ses_init_buf->trailer.session_req.scope1 = 0;
+			ses_init_buf->trailer.session_req.scope2 = 0;
+			smb_buf = (struct smb_hdr *)ses_init_buf;
+			/* sizeof RFC1002_SESSION_REQUEST with no scope */
+			smb_buf->smb_buf_length = 0x81000044;
+			rc = smb_send(*csocket, smb_buf, 0x44,
+				(struct sockaddr *)psin_server);
+			kfree(ses_init_buf);
+		}
+		/* else the negprot may still work without this 
+		even though malloc failed */
+		
+	}
+		
+	return rc;
+}
+
+static int
+ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
+{
+	int rc = 0;
+	int connected = 0;
+	__be16 orig_port = 0;
+
+	if(*csocket == NULL) {
+		rc = sock_create_kern(PF_INET6, SOCK_STREAM, IPPROTO_TCP, csocket);
+		if (rc < 0) {
+			cERROR(1, ("Error %d creating ipv6 socket",rc));
+			*csocket = NULL;
+			return rc;
+		} else {
+		/* BB other socket options to set KEEPALIVE, NODELAY? */
+			 cFYI(1,("ipv6 Socket created"));
+			(*csocket)->sk->sk_allocation = GFP_NOFS;
+		}
+	}
+
+	psin_server->sin6_family = AF_INET6;
+
+	if(psin_server->sin6_port) { /* user overrode default port */
+		rc = (*csocket)->ops->connect(*csocket,
+				(struct sockaddr *) psin_server,
+				sizeof (struct sockaddr_in6),0);
+		if (rc >= 0)
+			connected = 1;
+	} 
+
+	if(!connected) {
+		/* save original port so we can retry user specified port  
+			later if fall back ports fail this time  */
+
+		orig_port = psin_server->sin6_port;
+		/* do not retry on the same port we just failed on */
+		if(psin_server->sin6_port != htons(CIFS_PORT)) {
+			psin_server->sin6_port = htons(CIFS_PORT);
+
+			rc = (*csocket)->ops->connect(*csocket,
+					(struct sockaddr *) psin_server,
+					sizeof (struct sockaddr_in6),0);
+			if (rc >= 0)
+				connected = 1;
+		}
+	}
+	if (!connected) {
+		psin_server->sin6_port = htons(RFC1001_PORT);
+		rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
+					 psin_server, sizeof (struct sockaddr_in6),0);
+		if (rc >= 0) 
+			connected = 1;
+	}
+
+	/* give up here - unless we want to retry on different
+		protocol families some day */
+	if (!connected) {
+		if(orig_port)
+			psin_server->sin6_port = orig_port;
+		cFYI(1,("Error %d connecting to server via ipv6",rc));
+		sock_release(*csocket);
+		*csocket = NULL;
+		return rc;
+	}
+	/* Eventually check for other socket options to change from 
+		the default. sock_setsockopt not used because it expects 
+		user space buffer */
+	(*csocket)->sk->sk_rcvtimeo = 7 * HZ;
+		
+	return rc;
+}
+
+int
+cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
+	   char *mount_data, const char *devname)
+{
+	int rc = 0;
+	int xid;
+	int address_type = AF_INET;
+	struct socket *csocket = NULL;
+	struct sockaddr_in sin_server;
+	struct sockaddr_in6 sin_server6;
+	struct smb_vol volume_info;
+	struct cifsSesInfo *pSesInfo = NULL;
+	struct cifsSesInfo *existingCifsSes = NULL;
+	struct cifsTconInfo *tcon = NULL;
+	struct TCP_Server_Info *srvTcp = NULL;
+
+	xid = GetXid();
+
+/* cFYI(1, ("Entering cifs_mount. Xid: %d with: %s", xid, mount_data)); */
+	
+	memset(&volume_info,0,sizeof(struct smb_vol));
+	if (cifs_parse_mount_options(mount_data, devname, &volume_info)) {
+		if(volume_info.UNC)
+			kfree(volume_info.UNC);
+		if(volume_info.password)
+			kfree(volume_info.password);
+		FreeXid(xid);
+		return -EINVAL;
+	}
+
+	if (volume_info.username) {
+		/* BB fixme parse for domain name here */
+		cFYI(1, ("Username: %s ", volume_info.username));
+
+	} else {
+		cifserror("No username specified ");
+        /* In userspace mount helper we can get user name from alternate
+           locations such as env variables and files on disk */
+		if(volume_info.UNC)
+			kfree(volume_info.UNC);
+		if(volume_info.password)
+			kfree(volume_info.password);
+		FreeXid(xid);
+		return -EINVAL;
+	}
+
+	if (volume_info.UNCip && volume_info.UNC) {
+		rc = cifs_inet_pton(AF_INET, volume_info.UNCip,&sin_server.sin_addr.s_addr);
+
+		if(rc <= 0) {
+			/* not ipv4 address, try ipv6 */
+			rc = cifs_inet_pton(AF_INET6,volume_info.UNCip,&sin_server6.sin6_addr.in6_u); 
+			if(rc > 0)
+				address_type = AF_INET6;
+		} else {
+			address_type = AF_INET;
+		}
+       
+		if(rc <= 0) {
+			/* we failed translating address */
+			if(volume_info.UNC)
+				kfree(volume_info.UNC);
+			if(volume_info.password)
+				kfree(volume_info.password);
+			FreeXid(xid);
+			return -EINVAL;
+		}
+
+		cFYI(1, ("UNC: %s ip: %s", volume_info.UNC, volume_info.UNCip));
+		/* success */
+		rc = 0;
+	} else if (volume_info.UNCip){
+		/* BB using ip addr as server name connect to the DFS root below */
+		cERROR(1,("Connecting to DFS root not implemented yet"));
+		if(volume_info.UNC)
+			kfree(volume_info.UNC);
+		if(volume_info.password)
+			kfree(volume_info.password);
+		FreeXid(xid);
+		return -EINVAL;
+	} else /* which servers DFS root would we conect to */ {
+		cERROR(1,
+		       ("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified  "));
+		if(volume_info.UNC)
+			kfree(volume_info.UNC);
+		if(volume_info.password)
+			kfree(volume_info.password);
+		FreeXid(xid);
+		return -EINVAL;
+	}
+
+	/* this is needed for ASCII cp to Unicode converts */
+	if(volume_info.iocharset == NULL) {
+		cifs_sb->local_nls = load_nls_default();
+	/* load_nls_default can not return null */
+	} else {
+		cifs_sb->local_nls = load_nls(volume_info.iocharset);
+		if(cifs_sb->local_nls == NULL) {
+			cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset));
+			if(volume_info.UNC)
+				kfree(volume_info.UNC);
+			if(volume_info.password)
+				kfree(volume_info.password);
+			FreeXid(xid);
+			return -ELIBACC;
+		}
+	}
+
+	if(address_type == AF_INET)
+		existingCifsSes = cifs_find_tcp_session(&sin_server.sin_addr,
+			NULL /* no ipv6 addr */,
+			volume_info.username, &srvTcp);
+	else if(address_type == AF_INET6)
+		existingCifsSes = cifs_find_tcp_session(NULL /* no ipv4 addr */,
+			&sin_server6.sin6_addr,
+			volume_info.username, &srvTcp);
+	else {
+		if(volume_info.UNC)
+			kfree(volume_info.UNC);
+		if(volume_info.password)
+			kfree(volume_info.password);
+		FreeXid(xid);
+		return -EINVAL;
+	}
+
+
+	if (srvTcp) {
+		cFYI(1, ("Existing tcp session with server found "));                
+	} else {	/* create socket */
+		if(volume_info.port)
+			sin_server.sin_port = htons(volume_info.port);
+		else
+			sin_server.sin_port = 0;
+		rc = ipv4_connect(&sin_server,&csocket,volume_info.source_rfc1001_name);
+		if (rc < 0) {
+			cERROR(1,
+			       ("Error connecting to IPv4 socket. Aborting operation"));
+			if(csocket != NULL)
+				sock_release(csocket);
+			if(volume_info.UNC)
+				kfree(volume_info.UNC);
+			if(volume_info.password)
+				kfree(volume_info.password);
+			FreeXid(xid);
+			return rc;
+		}
+
+		srvTcp = kmalloc(sizeof (struct TCP_Server_Info), GFP_KERNEL);
+		if (srvTcp == NULL) {
+			rc = -ENOMEM;
+			sock_release(csocket);
+			if(volume_info.UNC)
+				kfree(volume_info.UNC);
+			if(volume_info.password)
+				kfree(volume_info.password);
+			FreeXid(xid);
+			return rc;
+		} else {
+			memset(srvTcp, 0, sizeof (struct TCP_Server_Info));
+			memcpy(&srvTcp->addr.sockAddr, &sin_server, sizeof (struct sockaddr_in));
+			atomic_set(&srvTcp->inFlight,0);
+			/* BB Add code for ipv6 case too */
+			srvTcp->ssocket = csocket;
+			srvTcp->protocolType = IPV4;
+			init_waitqueue_head(&srvTcp->response_q);
+			init_waitqueue_head(&srvTcp->request_q);
+			INIT_LIST_HEAD(&srvTcp->pending_mid_q);
+			/* at this point we are the only ones with the pointer
+			to the struct since the kernel thread not created yet
+			so no need to spinlock this init of tcpStatus */
+			srvTcp->tcpStatus = CifsNew;
+			init_MUTEX(&srvTcp->tcpSem);
+			rc = (int)kernel_thread((void *)(void *)cifs_demultiplex_thread, srvTcp,
+				      CLONE_FS | CLONE_FILES | CLONE_VM);
+			if(rc < 0) {
+				rc = -ENOMEM;
+				sock_release(csocket);
+				if(volume_info.UNC)
+					kfree(volume_info.UNC);
+				if(volume_info.password)
+					kfree(volume_info.password);
+				FreeXid(xid);
+				return rc;
+			} else
+				rc = 0;
+			memcpy(srvTcp->workstation_RFC1001_name, volume_info.source_rfc1001_name,16);
+		}
+	}
+
+	if (existingCifsSes) {
+		pSesInfo = existingCifsSes;
+		cFYI(1, ("Existing smb sess found "));
+		if(volume_info.password)
+			kfree(volume_info.password);
+		/* volume_info.UNC freed at end of function */
+	} else if (!rc) {
+		cFYI(1, ("Existing smb sess not found "));
+		pSesInfo = sesInfoAlloc();
+		if (pSesInfo == NULL)
+			rc = -ENOMEM;
+		else {
+			pSesInfo->server = srvTcp;
+			sprintf(pSesInfo->serverName, "%u.%u.%u.%u",
+				NIPQUAD(sin_server.sin_addr.s_addr));
+		}
+
+		if (!rc){
+			/* volume_info.password freed at unmount */   
+			if (volume_info.password)
+				pSesInfo->password = volume_info.password;
+			if (volume_info.username)
+				strncpy(pSesInfo->userName,
+					volume_info.username,MAX_USERNAME_SIZE);
+			if (volume_info.domainname)
+				strncpy(pSesInfo->domainName,
+					volume_info.domainname,MAX_USERNAME_SIZE);
+			pSesInfo->linux_uid = volume_info.linux_uid;
+			down(&pSesInfo->sesSem);
+			rc = cifs_setup_session(xid,pSesInfo, cifs_sb->local_nls);
+			up(&pSesInfo->sesSem);
+			if(!rc)
+				atomic_inc(&srvTcp->socketUseCount);
+		} else
+			if(volume_info.password)
+				kfree(volume_info.password);
+	}
+    
+	/* search for existing tcon to this server share */
+	if (!rc) {
+		if((volume_info.rsize) && (volume_info.rsize <= CIFSMaxBufSize))
+			cifs_sb->rsize = volume_info.rsize;
+		else
+			cifs_sb->rsize = srvTcp->maxBuf - MAX_CIFS_HDR_SIZE; /* default */
+		if((volume_info.wsize) && (volume_info.wsize <= CIFSMaxBufSize))
+			cifs_sb->wsize = volume_info.wsize;
+		else
+			cifs_sb->wsize = CIFSMaxBufSize; /* default */
+		if(cifs_sb->rsize < PAGE_CACHE_SIZE) {
+			cifs_sb->rsize = PAGE_CACHE_SIZE;
+			cERROR(1,("Attempt to set readsize for mount to less than one page (4096)"));
+		}
+		cifs_sb->mnt_uid = volume_info.linux_uid;
+		cifs_sb->mnt_gid = volume_info.linux_gid;
+		cifs_sb->mnt_file_mode = volume_info.file_mode;
+		cifs_sb->mnt_dir_mode = volume_info.dir_mode;
+		cFYI(1,("file mode: 0x%x  dir mode: 0x%x",cifs_sb->mnt_file_mode,cifs_sb->mnt_dir_mode));
+
+		if(volume_info.noperm)
+			cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_PERM;
+		if(volume_info.setuids)
+			cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SET_UID;
+		if(volume_info.server_ino)
+			cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM;
+		if(volume_info.no_xattr)
+			cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
+		if(volume_info.direct_io) {
+			cERROR(1,("mounting share using direct i/o"));
+			cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;
+		}
+
+		tcon =
+		    find_unc(sin_server.sin_addr.s_addr, volume_info.UNC,
+			     volume_info.username);
+		if (tcon) {
+			cFYI(1, ("Found match on UNC path "));
+			/* we can have only one retry value for a connection
+			   to a share so for resources mounted more than once
+			   to the same server share the last value passed in 
+			   for the retry flag is used */
+			tcon->retry = volume_info.retry;
+		} else {
+			tcon = tconInfoAlloc();
+			if (tcon == NULL)
+				rc = -ENOMEM;
+			else {
+				/* check for null share name ie connect to dfs root */
+
+				/* BB check if this works for exactly length three strings */
+				if ((strchr(volume_info.UNC + 3, '\\') == NULL)
+				    && (strchr(volume_info.UNC + 3, '/') ==
+					NULL)) {
+					rc = connect_to_dfs_path(xid,
+								 pSesInfo,
+								 "",
+								 cifs_sb->
+								 local_nls);
+					if(volume_info.UNC)
+						kfree(volume_info.UNC);
+					FreeXid(xid);
+					return -ENODEV;
+				} else {
+					rc = CIFSTCon(xid, pSesInfo, 
+						volume_info.UNC,
+						tcon, cifs_sb->local_nls);
+					cFYI(1, ("CIFS Tcon rc = %d", rc));
+				}
+				if (!rc) {
+					atomic_inc(&pSesInfo->inUse);
+					tcon->retry = volume_info.retry;
+				}
+			}
+		}
+	}
+	if(pSesInfo) {
+		if (pSesInfo->capabilities & CAP_LARGE_FILES) {
+			sb->s_maxbytes = (u64) 1 << 63;
+		} else
+			sb->s_maxbytes = (u64) 1 << 31;	/* 2 GB */
+	}
+
+	sb->s_time_gran = 100;
+
+/* on error free sesinfo and tcon struct if needed */
+	if (rc) {
+		/* if session setup failed, use count is zero but
+		we still need to free cifsd thread */
+		if(atomic_read(&srvTcp->socketUseCount) == 0) {
+			spin_lock(&GlobalMid_Lock);
+			srvTcp->tcpStatus = CifsExiting;
+			spin_unlock(&GlobalMid_Lock);
+			if(srvTcp->tsk)
+				send_sig(SIGKILL,srvTcp->tsk,1);
+		}
+		 /* If find_unc succeeded then rc == 0 so we can not end */
+		if (tcon)  /* up accidently freeing someone elses tcon struct */
+			tconInfoFree(tcon);
+		if (existingCifsSes == NULL) {
+			if (pSesInfo) {
+				if ((pSesInfo->server) && 
+				    (pSesInfo->status == CifsGood)) {
+					int temp_rc;
+					temp_rc = CIFSSMBLogoff(xid, pSesInfo);
+					/* if the socketUseCount is now zero */
+					if((temp_rc == -ESHUTDOWN) &&
+					   (pSesInfo->server->tsk))
+						send_sig(SIGKILL,pSesInfo->server->tsk,1);
+				} else
+					cFYI(1, ("No session or bad tcon"));
+				sesInfoFree(pSesInfo);
+				/* pSesInfo = NULL; */
+			}
+		}
+	} else {
+		atomic_inc(&tcon->useCount);
+		cifs_sb->tcon = tcon;
+		tcon->ses = pSesInfo;
+
+		/* do not care if following two calls succeed - informational only */
+		CIFSSMBQFSDeviceInfo(xid, tcon, cifs_sb->local_nls);
+		CIFSSMBQFSAttributeInfo(xid, tcon, cifs_sb->local_nls);
+		if (tcon->ses->capabilities & CAP_UNIX) {
+			if(!CIFSSMBQFSUnixInfo(xid, tcon, cifs_sb->local_nls)) {
+				if(!volume_info.no_psx_acl) {
+					if(CIFS_UNIX_POSIX_ACL_CAP & 
+					   le64_to_cpu(tcon->fsUnixInfo.Capability))
+						cFYI(1,("server negotiated posix acl support"));
+						sb->s_flags |= MS_POSIXACL;
+				}
+			}
+		}
+	}
+
+	/* volume_info.password is freed above when existing session found
+	(in which case it is not needed anymore) but when new sesion is created
+	the password ptr is put in the new session structure (in which case the
+	password will be freed at unmount time) */
+	if(volume_info.UNC)
+		kfree(volume_info.UNC);
+	FreeXid(xid);
+	return rc;
+}
+
+static int
+CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
+	      char session_key[CIFS_SESSION_KEY_SIZE],
+	      const struct nls_table *nls_codepage)
+{
+	struct smb_hdr *smb_buffer;
+	struct smb_hdr *smb_buffer_response;
+	SESSION_SETUP_ANDX *pSMB;
+	SESSION_SETUP_ANDX *pSMBr;
+	char *bcc_ptr;
+	char *user;
+	char *domain;
+	int rc = 0;
+	int remaining_words = 0;
+	int bytes_returned = 0;
+	int len;
+	__u32 capabilities;
+	__u16 count;
+
+	cFYI(1, ("In sesssetup "));
+	if(ses == NULL)
+		return -EINVAL;
+	user = ses->userName;
+	domain = ses->domainName;
+	smb_buffer = cifs_buf_get();
+	if (smb_buffer == NULL) {
+		return -ENOMEM;
+	}
+	smb_buffer_response = smb_buffer;
+	pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
+
+	/* send SMBsessionSetup here */
+	header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
+			NULL /* no tCon exists yet */ , 13 /* wct */ );
+
+	pSMB->req_no_secext.AndXCommand = 0xFF;
+	pSMB->req_no_secext.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
+	pSMB->req_no_secext.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
+
+	if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+		smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
+
+	capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
+		CAP_LARGE_WRITE_X | CAP_LARGE_READ_X;
+	if (ses->capabilities & CAP_UNICODE) {
+		smb_buffer->Flags2 |= SMBFLG2_UNICODE;
+		capabilities |= CAP_UNICODE;
+	}
+	if (ses->capabilities & CAP_STATUS32) {
+		smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
+		capabilities |= CAP_STATUS32;
+	}
+	if (ses->capabilities & CAP_DFS) {
+		smb_buffer->Flags2 |= SMBFLG2_DFS;
+		capabilities |= CAP_DFS;
+	}
+	pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities);
+
+	pSMB->req_no_secext.CaseInsensitivePasswordLength = 
+		cpu_to_le16(CIFS_SESSION_KEY_SIZE);
+
+	pSMB->req_no_secext.CaseSensitivePasswordLength =
+	    cpu_to_le16(CIFS_SESSION_KEY_SIZE);
+	bcc_ptr = pByteArea(smb_buffer);
+	memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE);
+	bcc_ptr += CIFS_SESSION_KEY_SIZE;
+	memcpy(bcc_ptr, (char *) session_key, CIFS_SESSION_KEY_SIZE);
+	bcc_ptr += CIFS_SESSION_KEY_SIZE;
+
+	if (ses->capabilities & CAP_UNICODE) {
+		if ((long) bcc_ptr % 2) { /* must be word aligned for Unicode */
+			*bcc_ptr = 0;
+			bcc_ptr++;
+		}
+		if(user == NULL)
+			bytes_returned = 0; /* skill null user */
+	        else
+			bytes_returned =
+			        cifs_strtoUCS((wchar_t *) bcc_ptr, user, 100,
+					nls_codepage);
+		/* convert number of 16 bit words to bytes */
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;	/* trailing null */
+		if (domain == NULL)
+			bytes_returned =
+			    cifs_strtoUCS((wchar_t *) bcc_ptr,
+					  "CIFS_LINUX_DOM", 32, nls_codepage);
+		else
+			bytes_returned =
+			    cifs_strtoUCS((wchar_t *) bcc_ptr, domain, 64,
+					  nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
+				  32, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release,
+				  32, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
+				  64, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;
+	} else {
+		if(user != NULL) {                
+		    strncpy(bcc_ptr, user, 200);
+		    bcc_ptr += strnlen(user, 200);
+		}
+		*bcc_ptr = 0;
+		bcc_ptr++;
+		if (domain == NULL) {
+			strcpy(bcc_ptr, "CIFS_LINUX_DOM");
+			bcc_ptr += strlen("CIFS_LINUX_DOM") + 1;
+		} else {
+			strncpy(bcc_ptr, domain, 64);
+			bcc_ptr += strnlen(domain, 64);
+			*bcc_ptr = 0;
+			bcc_ptr++;
+		}
+		strcpy(bcc_ptr, "Linux version ");
+		bcc_ptr += strlen("Linux version ");
+		strcpy(bcc_ptr, system_utsname.release);
+		bcc_ptr += strlen(system_utsname.release) + 1;
+		strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
+		bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
+	}
+	count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
+	smb_buffer->smb_buf_length += count;
+	pSMB->req_no_secext.ByteCount = cpu_to_le16(count);
+
+	rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
+			 &bytes_returned, 1);
+	if (rc) {
+/* rc = map_smb_to_linux_error(smb_buffer_response); now done in SendReceive */
+	} else if ((smb_buffer_response->WordCount == 3)
+		   || (smb_buffer_response->WordCount == 4)) {
+		__u16 action = le16_to_cpu(pSMBr->resp.Action);
+		__u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
+		if (action & GUEST_LOGIN)
+			cFYI(1, (" Guest login"));	/* do we want to mark SesInfo struct ? */
+		ses->Suid = smb_buffer_response->Uid;	/* UID left in wire format (le) */
+		cFYI(1, ("UID = %d ", ses->Suid));
+         /* response can have either 3 or 4 word count - Samba sends 3 */
+		bcc_ptr = pByteArea(smb_buffer_response);	
+		if ((pSMBr->resp.hdr.WordCount == 3)
+		    || ((pSMBr->resp.hdr.WordCount == 4)
+			&& (blob_len < pSMBr->resp.ByteCount))) {
+			if (pSMBr->resp.hdr.WordCount == 4)
+				bcc_ptr += blob_len;
+
+			if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
+				if ((long) (bcc_ptr) % 2) {
+					remaining_words =
+					    (BCC(smb_buffer_response) - 1) /2;
+					bcc_ptr++;	/* Unicode strings must be word aligned */
+				} else {
+					remaining_words =
+						BCC(smb_buffer_response) / 2;
+				}
+				len =
+				    UniStrnlen((wchar_t *) bcc_ptr,
+					       remaining_words - 1);
+/* We look for obvious messed up bcc or strings in response so we do not go off
+   the end since (at least) WIN2K and Windows XP have a major bug in not null
+   terminating last Unicode string in response  */
+				ses->serverOS = cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
+				cifs_strfromUCS_le(ses->serverOS,
+					   (wchar_t *)bcc_ptr, len,nls_codepage);
+				bcc_ptr += 2 * (len + 1);
+				remaining_words -= len + 1;
+				ses->serverOS[2 * len] = 0;
+				ses->serverOS[1 + (2 * len)] = 0;
+				if (remaining_words > 0) {
+					len = UniStrnlen((wchar_t *)bcc_ptr,
+							 remaining_words-1);
+					ses->serverNOS =cifs_kcalloc(2 * (len + 1),GFP_KERNEL);
+					cifs_strfromUCS_le(ses->serverNOS,
+							   (wchar_t *)bcc_ptr,len,nls_codepage);
+					bcc_ptr += 2 * (len + 1);
+					ses->serverNOS[2 * len] = 0;
+					ses->serverNOS[1 + (2 * len)] = 0;
+					if(strncmp(ses->serverNOS,
+						"NT LAN Manager 4",16) == 0) {
+						cFYI(1,("NT4 server"));
+						ses->flags |= CIFS_SES_NT4;
+					}
+					remaining_words -= len + 1;
+					if (remaining_words > 0) {
+						len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);	
+          /* last string is not always null terminated (for e.g. for Windows XP & 2000) */
+						ses->serverDomain =
+						    cifs_kcalloc(2*(len+1),GFP_KERNEL);
+						cifs_strfromUCS_le(ses->serverDomain,
+						     (wchar_t *)bcc_ptr,len,nls_codepage);
+						bcc_ptr += 2 * (len + 1);
+						ses->serverDomain[2*len] = 0;
+						ses->serverDomain[1+(2*len)] = 0;
+					} /* else no more room so create dummy domain string */
+					else
+						ses->serverDomain =
+						    cifs_kcalloc(2,
+							    GFP_KERNEL);
+				} else {	/* no room so create dummy domain and NOS string */
+					ses->serverDomain =
+					    cifs_kcalloc(2, GFP_KERNEL);
+					ses->serverNOS =
+					    cifs_kcalloc(2, GFP_KERNEL);
+				}
+			} else {	/* ASCII */
+				len = strnlen(bcc_ptr, 1024);
+				if (((long) bcc_ptr + len) - (long)
+				    pByteArea(smb_buffer_response)
+					    <= BCC(smb_buffer_response)) {
+					ses->serverOS = cifs_kcalloc(len + 1,GFP_KERNEL);
+					strncpy(ses->serverOS,bcc_ptr, len);
+
+					bcc_ptr += len;
+					bcc_ptr[0] = 0;	/* null terminate the string */
+					bcc_ptr++;
+
+					len = strnlen(bcc_ptr, 1024);
+					ses->serverNOS = cifs_kcalloc(len + 1,GFP_KERNEL);
+					strncpy(ses->serverNOS, bcc_ptr, len);
+					bcc_ptr += len;
+					bcc_ptr[0] = 0;
+					bcc_ptr++;
+
+					len = strnlen(bcc_ptr, 1024);
+					ses->serverDomain = cifs_kcalloc(len + 1,GFP_KERNEL);
+					strncpy(ses->serverDomain, bcc_ptr, len);
+					bcc_ptr += len;
+					bcc_ptr[0] = 0;
+					bcc_ptr++;
+				} else
+					cFYI(1,
+					     ("Variable field of length %d extends beyond end of smb ",
+					      len));
+			}
+		} else {
+			cERROR(1,
+			       (" Security Blob Length extends beyond end of SMB"));
+		}
+	} else {
+		cERROR(1,
+		       (" Invalid Word count %d: ",
+			smb_buffer_response->WordCount));
+		rc = -EIO;
+	}
+	
+	if (smb_buffer)
+		cifs_buf_release(smb_buffer);
+
+	return rc;
+}
+
+static int
+CIFSSpnegoSessSetup(unsigned int xid, struct cifsSesInfo *ses,
+		char *SecurityBlob,int SecurityBlobLength,
+		const struct nls_table *nls_codepage)
+{
+	struct smb_hdr *smb_buffer;
+	struct smb_hdr *smb_buffer_response;
+	SESSION_SETUP_ANDX *pSMB;
+	SESSION_SETUP_ANDX *pSMBr;
+	char *bcc_ptr;
+	char *user;
+	char *domain;
+	int rc = 0;
+	int remaining_words = 0;
+	int bytes_returned = 0;
+	int len;
+	__u32 capabilities;
+	__u16 count;
+
+	cFYI(1, ("In spnego sesssetup "));
+	if(ses == NULL)
+		return -EINVAL;
+	user = ses->userName;
+	domain = ses->domainName;
+
+	smb_buffer = cifs_buf_get();
+	if (smb_buffer == NULL) {
+		return -ENOMEM;
+	}
+	smb_buffer_response = smb_buffer;
+	pSMBr = pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
+
+	/* send SMBsessionSetup here */
+	header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
+			NULL /* no tCon exists yet */ , 12 /* wct */ );
+	pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
+	pSMB->req.AndXCommand = 0xFF;
+	pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
+	pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
+
+	if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+		smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
+
+	capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
+	    CAP_EXTENDED_SECURITY;
+	if (ses->capabilities & CAP_UNICODE) {
+		smb_buffer->Flags2 |= SMBFLG2_UNICODE;
+		capabilities |= CAP_UNICODE;
+	}
+	if (ses->capabilities & CAP_STATUS32) {
+		smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
+		capabilities |= CAP_STATUS32;
+	}
+	if (ses->capabilities & CAP_DFS) {
+		smb_buffer->Flags2 |= SMBFLG2_DFS;
+		capabilities |= CAP_DFS;
+	}
+	pSMB->req.Capabilities = cpu_to_le32(capabilities);
+
+	pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
+	bcc_ptr = pByteArea(smb_buffer);
+	memcpy(bcc_ptr, SecurityBlob, SecurityBlobLength);
+	bcc_ptr += SecurityBlobLength;
+
+	if (ses->capabilities & CAP_UNICODE) {
+		if ((long) bcc_ptr % 2) {	/* must be word aligned for Unicode strings */
+			*bcc_ptr = 0;
+			bcc_ptr++;
+		}
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, user, 100, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;	/* convert num of 16 bit words to bytes */
+		bcc_ptr += 2;	/* trailing null */
+		if (domain == NULL)
+			bytes_returned =
+			    cifs_strtoUCS((wchar_t *) bcc_ptr,
+					  "CIFS_LINUX_DOM", 32, nls_codepage);
+		else
+			bytes_returned =
+			    cifs_strtoUCS((wchar_t *) bcc_ptr, domain, 64,
+					  nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
+				  32, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release, 32,
+				  nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
+				  64, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;
+	} else {
+		strncpy(bcc_ptr, user, 200);
+		bcc_ptr += strnlen(user, 200);
+		*bcc_ptr = 0;
+		bcc_ptr++;
+		if (domain == NULL) {
+			strcpy(bcc_ptr, "CIFS_LINUX_DOM");
+			bcc_ptr += strlen("CIFS_LINUX_DOM") + 1;
+		} else {
+			strncpy(bcc_ptr, domain, 64);
+			bcc_ptr += strnlen(domain, 64);
+			*bcc_ptr = 0;
+			bcc_ptr++;
+		}
+		strcpy(bcc_ptr, "Linux version ");
+		bcc_ptr += strlen("Linux version ");
+		strcpy(bcc_ptr, system_utsname.release);
+		bcc_ptr += strlen(system_utsname.release) + 1;
+		strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
+		bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
+	}
+	count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
+	smb_buffer->smb_buf_length += count;
+	pSMB->req.ByteCount = cpu_to_le16(count);
+
+	rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
+			 &bytes_returned, 1);
+	if (rc) {
+/*    rc = map_smb_to_linux_error(smb_buffer_response);  *//* done in SendReceive now */
+	} else if ((smb_buffer_response->WordCount == 3)
+		   || (smb_buffer_response->WordCount == 4)) {
+		__u16 action = le16_to_cpu(pSMBr->resp.Action);
+		__u16 blob_len =
+		    le16_to_cpu(pSMBr->resp.SecurityBlobLength);
+		if (action & GUEST_LOGIN)
+			cFYI(1, (" Guest login"));	/* BB do we want to set anything in SesInfo struct ? */
+		if (ses) {
+			ses->Suid = smb_buffer_response->Uid;	/* UID left in wire format (le) */
+			cFYI(1, ("UID = %d ", ses->Suid));
+			bcc_ptr = pByteArea(smb_buffer_response);	/* response can have either 3 or 4 word count - Samba sends 3 */
+
+			/* BB Fix below to make endian neutral !! */
+
+			if ((pSMBr->resp.hdr.WordCount == 3)
+			    || ((pSMBr->resp.hdr.WordCount == 4)
+				&& (blob_len <
+				    pSMBr->resp.ByteCount))) {
+				if (pSMBr->resp.hdr.WordCount == 4) {
+					bcc_ptr +=
+					    blob_len;
+					cFYI(1,
+					     ("Security Blob Length %d ",
+					      blob_len));
+				}
+
+				if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
+					if ((long) (bcc_ptr) % 2) {
+						remaining_words =
+						    (BCC(smb_buffer_response)
+						     - 1) / 2;
+						bcc_ptr++;	/* Unicode strings must be word aligned */
+					} else {
+						remaining_words =
+						    BCC
+						    (smb_buffer_response) / 2;
+					}
+					len =
+					    UniStrnlen((wchar_t *) bcc_ptr,
+						       remaining_words - 1);
+/* We look for obvious messed up bcc or strings in response so we do not go off
+   the end since (at least) WIN2K and Windows XP have a major bug in not null
+   terminating last Unicode string in response  */
+					ses->serverOS =
+					    cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
+					cifs_strfromUCS_le(ses->serverOS,
+							   (wchar_t *)
+							   bcc_ptr, len,
+							   nls_codepage);
+					bcc_ptr += 2 * (len + 1);
+					remaining_words -= len + 1;
+					ses->serverOS[2 * len] = 0;
+					ses->serverOS[1 + (2 * len)] = 0;
+					if (remaining_words > 0) {
+						len = UniStrnlen((wchar_t *)bcc_ptr,
+								 remaining_words
+								 - 1);
+						ses->serverNOS =
+						    cifs_kcalloc(2 * (len + 1),
+							    GFP_KERNEL);
+						cifs_strfromUCS_le(ses->serverNOS,
+								   (wchar_t *)bcc_ptr,
+								   len,
+								   nls_codepage);
+						bcc_ptr += 2 * (len + 1);
+						ses->serverNOS[2 * len] = 0;
+						ses->serverNOS[1 + (2 * len)] = 0;
+						remaining_words -= len + 1;
+						if (remaining_words > 0) {
+							len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);	
+                            /* last string is not always null terminated (for e.g. for Windows XP & 2000) */
+							ses->serverDomain = cifs_kcalloc(2*(len+1),GFP_KERNEL);
+							cifs_strfromUCS_le(ses->serverDomain,
+							     (wchar_t *)bcc_ptr, 
+                                 len,
+							     nls_codepage);
+							bcc_ptr += 2*(len+1);
+							ses->serverDomain[2*len] = 0;
+							ses->serverDomain[1+(2*len)] = 0;
+						} /* else no more room so create dummy domain string */
+						else
+							ses->serverDomain =
+							    cifs_kcalloc(2,GFP_KERNEL);
+					} else {	/* no room so create dummy domain and NOS string */
+						ses->serverDomain = cifs_kcalloc(2, GFP_KERNEL);
+						ses->serverNOS = cifs_kcalloc(2, GFP_KERNEL);
+					}
+				} else {	/* ASCII */
+
+					len = strnlen(bcc_ptr, 1024);
+					if (((long) bcc_ptr + len) - (long)
+					    pByteArea(smb_buffer_response)
+					    <= BCC(smb_buffer_response)) {
+						ses->serverOS = cifs_kcalloc(len + 1, GFP_KERNEL);
+						strncpy(ses->serverOS, bcc_ptr, len);
+
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;	/* null terminate the string */
+						bcc_ptr++;
+
+						len = strnlen(bcc_ptr, 1024);
+						ses->serverNOS = cifs_kcalloc(len + 1,GFP_KERNEL);
+						strncpy(ses->serverNOS, bcc_ptr, len);
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;
+						bcc_ptr++;
+
+						len = strnlen(bcc_ptr, 1024);
+						ses->serverDomain = cifs_kcalloc(len + 1, GFP_KERNEL);
+						strncpy(ses->serverDomain, bcc_ptr, len);
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;
+						bcc_ptr++;
+					} else
+						cFYI(1,
+						     ("Variable field of length %d extends beyond end of smb ",
+						      len));
+				}
+			} else {
+				cERROR(1,
+				       (" Security Blob Length extends beyond end of SMB"));
+			}
+		} else {
+			cERROR(1, ("No session structure passed in."));
+		}
+	} else {
+		cERROR(1,
+		       (" Invalid Word count %d: ",
+			smb_buffer_response->WordCount));
+		rc = -EIO;
+	}
+
+	if (smb_buffer)
+		cifs_buf_release(smb_buffer);
+
+	return rc;
+}
+
+static int
+CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
+			      struct cifsSesInfo *ses, int * pNTLMv2_flag,
+			      const struct nls_table *nls_codepage)
+{
+	struct smb_hdr *smb_buffer;
+	struct smb_hdr *smb_buffer_response;
+	SESSION_SETUP_ANDX *pSMB;
+	SESSION_SETUP_ANDX *pSMBr;
+	char *bcc_ptr;
+	char *domain;
+	int rc = 0;
+	int remaining_words = 0;
+	int bytes_returned = 0;
+	int len;
+	int SecurityBlobLength = sizeof (NEGOTIATE_MESSAGE);
+	PNEGOTIATE_MESSAGE SecurityBlob;
+	PCHALLENGE_MESSAGE SecurityBlob2;
+	__u32 negotiate_flags, capabilities;
+	__u16 count;
+
+	cFYI(1, ("In NTLMSSP sesssetup (negotiate) "));
+	if(ses == NULL)
+		return -EINVAL;
+	domain = ses->domainName;
+	*pNTLMv2_flag = FALSE;
+	smb_buffer = cifs_buf_get();
+	if (smb_buffer == NULL) {
+		return -ENOMEM;
+	}
+	smb_buffer_response = smb_buffer;
+	pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
+	pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response;
+
+	/* send SMBsessionSetup here */
+	header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
+			NULL /* no tCon exists yet */ , 12 /* wct */ );
+	pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
+	pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
+
+	pSMB->req.AndXCommand = 0xFF;
+	pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
+	pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
+
+	if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+		smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
+
+	capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
+	    CAP_EXTENDED_SECURITY;
+	if (ses->capabilities & CAP_UNICODE) {
+		smb_buffer->Flags2 |= SMBFLG2_UNICODE;
+		capabilities |= CAP_UNICODE;
+	}
+	if (ses->capabilities & CAP_STATUS32) {
+		smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
+		capabilities |= CAP_STATUS32;
+	}
+	if (ses->capabilities & CAP_DFS) {
+		smb_buffer->Flags2 |= SMBFLG2_DFS;
+		capabilities |= CAP_DFS;
+	}
+	pSMB->req.Capabilities = cpu_to_le32(capabilities);
+
+	bcc_ptr = (char *) &pSMB->req.SecurityBlob;
+	SecurityBlob = (PNEGOTIATE_MESSAGE) bcc_ptr;
+	strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
+	SecurityBlob->MessageType = NtLmNegotiate;
+	negotiate_flags =
+	    NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_NEGOTIATE_OEM |
+	    NTLMSSP_REQUEST_TARGET | NTLMSSP_NEGOTIATE_NTLM | 0x80000000 |
+	    /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */ NTLMSSP_NEGOTIATE_128;
+	if(sign_CIFS_PDUs)
+		negotiate_flags |= NTLMSSP_NEGOTIATE_SIGN;
+	if(ntlmv2_support)
+		negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;
+	/* setup pointers to domain name and workstation name */
+	bcc_ptr += SecurityBlobLength;
+
+	SecurityBlob->WorkstationName.Buffer = 0;
+	SecurityBlob->WorkstationName.Length = 0;
+	SecurityBlob->WorkstationName.MaximumLength = 0;
+
+	if (domain == NULL) {
+		SecurityBlob->DomainName.Buffer = 0;
+		SecurityBlob->DomainName.Length = 0;
+		SecurityBlob->DomainName.MaximumLength = 0;
+	} else {
+		__u16 len;
+		negotiate_flags |= NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED;
+		strncpy(bcc_ptr, domain, 63);
+		len = strnlen(domain, 64);
+		SecurityBlob->DomainName.MaximumLength =
+		    cpu_to_le16(len);
+		SecurityBlob->DomainName.Buffer =
+		    cpu_to_le32((long) &SecurityBlob->
+				DomainString -
+				(long) &SecurityBlob->Signature);
+		bcc_ptr += len;
+		SecurityBlobLength += len;
+		SecurityBlob->DomainName.Length =
+		    cpu_to_le16(len);
+	}
+	if (ses->capabilities & CAP_UNICODE) {
+		if ((long) bcc_ptr % 2) {
+			*bcc_ptr = 0;
+			bcc_ptr++;
+		}
+
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
+				  32, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release, 32,
+				  nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;	/* null terminate Linux version */
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
+				  64, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		*(bcc_ptr + 1) = 0;
+		*(bcc_ptr + 2) = 0;
+		bcc_ptr += 2;	/* null terminate network opsys string */
+		*(bcc_ptr + 1) = 0;
+		*(bcc_ptr + 2) = 0;
+		bcc_ptr += 2;	/* null domain */
+	} else {		/* ASCII */
+		strcpy(bcc_ptr, "Linux version ");
+		bcc_ptr += strlen("Linux version ");
+		strcpy(bcc_ptr, system_utsname.release);
+		bcc_ptr += strlen(system_utsname.release) + 1;
+		strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
+		bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
+		bcc_ptr++;	/* empty domain field */
+		*bcc_ptr = 0;
+	}
+	SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags);
+	pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
+	count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
+	smb_buffer->smb_buf_length += count;
+	pSMB->req.ByteCount = cpu_to_le16(count);
+
+	rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
+			 &bytes_returned, 1);
+
+	if (smb_buffer_response->Status.CifsError ==
+	    cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED))
+		rc = 0;
+
+	if (rc) {
+/*    rc = map_smb_to_linux_error(smb_buffer_response);  *//* done in SendReceive now */
+	} else if ((smb_buffer_response->WordCount == 3)
+		   || (smb_buffer_response->WordCount == 4)) {
+		__u16 action = le16_to_cpu(pSMBr->resp.Action);
+		__u16 blob_len = le16_to_cpu(pSMBr->resp.SecurityBlobLength);
+
+		if (action & GUEST_LOGIN)
+			cFYI(1, (" Guest login"));	
+        /* Do we want to set anything in SesInfo struct when guest login? */
+
+		bcc_ptr = pByteArea(smb_buffer_response);	
+        /* response can have either 3 or 4 word count - Samba sends 3 */
+
+		SecurityBlob2 = (PCHALLENGE_MESSAGE) bcc_ptr;
+		if (SecurityBlob2->MessageType != NtLmChallenge) {
+			cFYI(1,
+			     ("Unexpected NTLMSSP message type received %d",
+			      SecurityBlob2->MessageType));
+		} else if (ses) {
+			ses->Suid = smb_buffer_response->Uid; /* UID left in le format */ 
+			cFYI(1, ("UID = %d ", ses->Suid));
+			if ((pSMBr->resp.hdr.WordCount == 3)
+			    || ((pSMBr->resp.hdr.WordCount == 4)
+				&& (blob_len <
+				    pSMBr->resp.ByteCount))) {
+
+				if (pSMBr->resp.hdr.WordCount == 4) {
+					bcc_ptr += blob_len;
+					cFYI(1,
+					     ("Security Blob Length %d ",
+					      blob_len));
+				}
+
+				cFYI(1, ("NTLMSSP Challenge rcvd "));
+
+				memcpy(ses->server->cryptKey,
+				       SecurityBlob2->Challenge,
+				       CIFS_CRYPTO_KEY_SIZE);
+				if(SecurityBlob2->NegotiateFlags & cpu_to_le32(NTLMSSP_NEGOTIATE_NTLMV2))
+					*pNTLMv2_flag = TRUE;
+
+				if((SecurityBlob2->NegotiateFlags & 
+					cpu_to_le32(NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) 
+					|| (sign_CIFS_PDUs > 1))
+						ses->server->secMode |= 
+							SECMODE_SIGN_REQUIRED;	
+				if ((SecurityBlob2->NegotiateFlags & 
+					cpu_to_le32(NTLMSSP_NEGOTIATE_SIGN)) && (sign_CIFS_PDUs))
+						ses->server->secMode |= 
+							SECMODE_SIGN_ENABLED;
+
+				if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
+					if ((long) (bcc_ptr) % 2) {
+						remaining_words =
+						    (BCC(smb_buffer_response)
+						     - 1) / 2;
+						bcc_ptr++;	/* Unicode strings must be word aligned */
+					} else {
+						remaining_words =
+						    BCC
+						    (smb_buffer_response) / 2;
+					}
+					len =
+					    UniStrnlen((wchar_t *) bcc_ptr,
+						       remaining_words - 1);
+/* We look for obvious messed up bcc or strings in response so we do not go off
+   the end since (at least) WIN2K and Windows XP have a major bug in not null
+   terminating last Unicode string in response  */
+					ses->serverOS =
+					    cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
+					cifs_strfromUCS_le(ses->serverOS,
+							   (wchar_t *)
+							   bcc_ptr, len,
+							   nls_codepage);
+					bcc_ptr += 2 * (len + 1);
+					remaining_words -= len + 1;
+					ses->serverOS[2 * len] = 0;
+					ses->serverOS[1 + (2 * len)] = 0;
+					if (remaining_words > 0) {
+						len = UniStrnlen((wchar_t *)
+								 bcc_ptr,
+								 remaining_words
+								 - 1);
+						ses->serverNOS =
+						    cifs_kcalloc(2 * (len + 1),
+							    GFP_KERNEL);
+						cifs_strfromUCS_le(ses->
+								   serverNOS,
+								   (wchar_t *)
+								   bcc_ptr,
+								   len,
+								   nls_codepage);
+						bcc_ptr += 2 * (len + 1);
+						ses->serverNOS[2 * len] = 0;
+						ses->serverNOS[1 +
+							       (2 * len)] = 0;
+						remaining_words -= len + 1;
+						if (remaining_words > 0) {
+							len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);	
+           /* last string is not always null terminated (for e.g. for Windows XP & 2000) */
+							ses->serverDomain =
+							    cifs_kcalloc(2 *
+								    (len +
+								     1),
+								    GFP_KERNEL);
+							cifs_strfromUCS_le
+							    (ses->
+							     serverDomain,
+							     (wchar_t *)
+							     bcc_ptr, len,
+							     nls_codepage);
+							bcc_ptr +=
+							    2 * (len + 1);
+							ses->
+							    serverDomain[2
+									 * len]
+							    = 0;
+							ses->
+							    serverDomain[1
+									 +
+									 (2
+									  *
+									  len)]
+							    = 0;
+						} /* else no more room so create dummy domain string */
+						else
+							ses->serverDomain =
+							    cifs_kcalloc(2,
+								    GFP_KERNEL);
+					} else {	/* no room so create dummy domain and NOS string */
+						ses->serverDomain =
+						    cifs_kcalloc(2, GFP_KERNEL);
+						ses->serverNOS =
+						    cifs_kcalloc(2, GFP_KERNEL);
+					}
+				} else {	/* ASCII */
+					len = strnlen(bcc_ptr, 1024);
+					if (((long) bcc_ptr + len) - (long)
+					    pByteArea(smb_buffer_response)
+					    <= BCC(smb_buffer_response)) {
+						ses->serverOS =
+						    cifs_kcalloc(len + 1,
+							    GFP_KERNEL);
+						strncpy(ses->serverOS,
+							bcc_ptr, len);
+
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;	/* null terminate string */
+						bcc_ptr++;
+
+						len = strnlen(bcc_ptr, 1024);
+						ses->serverNOS =
+						    cifs_kcalloc(len + 1,
+							    GFP_KERNEL);
+						strncpy(ses->serverNOS, bcc_ptr, len);
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;
+						bcc_ptr++;
+
+						len = strnlen(bcc_ptr, 1024);
+						ses->serverDomain =
+						    cifs_kcalloc(len + 1,
+							    GFP_KERNEL);
+						strncpy(ses->serverDomain, bcc_ptr, len);	
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;
+						bcc_ptr++;
+					} else
+						cFYI(1,
+						     ("Variable field of length %d extends beyond end of smb ",
+						      len));
+				}
+			} else {
+				cERROR(1,
+				       (" Security Blob Length extends beyond end of SMB"));
+			}
+		} else {
+			cERROR(1, ("No session structure passed in."));
+		}
+	} else {
+		cERROR(1,
+		       (" Invalid Word count %d: ",
+			smb_buffer_response->WordCount));
+		rc = -EIO;
+	}
+
+	if (smb_buffer)
+		cifs_buf_release(smb_buffer);
+
+	return rc;
+}
+static int
+CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
+		char *ntlm_session_key, int ntlmv2_flag,
+		const struct nls_table *nls_codepage)
+{
+	struct smb_hdr *smb_buffer;
+	struct smb_hdr *smb_buffer_response;
+	SESSION_SETUP_ANDX *pSMB;
+	SESSION_SETUP_ANDX *pSMBr;
+	char *bcc_ptr;
+	char *user;
+	char *domain;
+	int rc = 0;
+	int remaining_words = 0;
+	int bytes_returned = 0;
+	int len;
+	int SecurityBlobLength = sizeof (AUTHENTICATE_MESSAGE);
+	PAUTHENTICATE_MESSAGE SecurityBlob;
+	__u32 negotiate_flags, capabilities;
+	__u16 count;
+
+	cFYI(1, ("In NTLMSSPSessSetup (Authenticate)"));
+	if(ses == NULL)
+		return -EINVAL;
+	user = ses->userName;
+	domain = ses->domainName;
+	smb_buffer = cifs_buf_get();
+	if (smb_buffer == NULL) {
+		return -ENOMEM;
+	}
+	smb_buffer_response = smb_buffer;
+	pSMB = (SESSION_SETUP_ANDX *) smb_buffer;
+	pSMBr = (SESSION_SETUP_ANDX *) smb_buffer_response;
+
+	/* send SMBsessionSetup here */
+	header_assemble(smb_buffer, SMB_COM_SESSION_SETUP_ANDX,
+			NULL /* no tCon exists yet */ , 12 /* wct */ );
+	pSMB->req.hdr.Flags |= (SMBFLG_CASELESS | SMBFLG_CANONICAL_PATH_FORMAT);
+	pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC;
+	pSMB->req.AndXCommand = 0xFF;
+	pSMB->req.MaxBufferSize = cpu_to_le16(ses->server->maxBuf);
+	pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
+
+	pSMB->req.hdr.Uid = ses->Suid;
+
+	if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+		smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
+
+	capabilities = CAP_LARGE_FILES | CAP_NT_SMBS | CAP_LEVEL_II_OPLOCKS |
+	    CAP_EXTENDED_SECURITY;
+	if (ses->capabilities & CAP_UNICODE) {
+		smb_buffer->Flags2 |= SMBFLG2_UNICODE;
+		capabilities |= CAP_UNICODE;
+	}
+	if (ses->capabilities & CAP_STATUS32) {
+		smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
+		capabilities |= CAP_STATUS32;
+	}
+	if (ses->capabilities & CAP_DFS) {
+		smb_buffer->Flags2 |= SMBFLG2_DFS;
+		capabilities |= CAP_DFS;
+	}
+	pSMB->req.Capabilities = cpu_to_le32(capabilities);
+
+	bcc_ptr = (char *) &pSMB->req.SecurityBlob;
+	SecurityBlob = (PAUTHENTICATE_MESSAGE) bcc_ptr;
+	strncpy(SecurityBlob->Signature, NTLMSSP_SIGNATURE, 8);
+	SecurityBlob->MessageType = NtLmAuthenticate;
+	bcc_ptr += SecurityBlobLength;
+	negotiate_flags = 
+	    NTLMSSP_NEGOTIATE_UNICODE | NTLMSSP_REQUEST_TARGET |
+	    NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_TARGET_INFO |
+	    0x80000000 | NTLMSSP_NEGOTIATE_128;
+	if(sign_CIFS_PDUs)
+		negotiate_flags |= /* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/ NTLMSSP_NEGOTIATE_SIGN;
+	if(ntlmv2_flag)
+		negotiate_flags |= NTLMSSP_NEGOTIATE_NTLMV2;
+
+/* setup pointers to domain name and workstation name */
+
+	SecurityBlob->WorkstationName.Buffer = 0;
+	SecurityBlob->WorkstationName.Length = 0;
+	SecurityBlob->WorkstationName.MaximumLength = 0;
+	SecurityBlob->SessionKey.Length = 0;
+	SecurityBlob->SessionKey.MaximumLength = 0;
+	SecurityBlob->SessionKey.Buffer = 0;
+
+	SecurityBlob->LmChallengeResponse.Length = 0;
+	SecurityBlob->LmChallengeResponse.MaximumLength = 0;
+	SecurityBlob->LmChallengeResponse.Buffer = 0;
+
+	SecurityBlob->NtChallengeResponse.Length =
+	    cpu_to_le16(CIFS_SESSION_KEY_SIZE);
+	SecurityBlob->NtChallengeResponse.MaximumLength =
+	    cpu_to_le16(CIFS_SESSION_KEY_SIZE);
+	memcpy(bcc_ptr, ntlm_session_key, CIFS_SESSION_KEY_SIZE);
+	SecurityBlob->NtChallengeResponse.Buffer =
+	    cpu_to_le32(SecurityBlobLength);
+	SecurityBlobLength += CIFS_SESSION_KEY_SIZE;
+	bcc_ptr += CIFS_SESSION_KEY_SIZE;
+
+	if (ses->capabilities & CAP_UNICODE) {
+		if (domain == NULL) {
+			SecurityBlob->DomainName.Buffer = 0;
+			SecurityBlob->DomainName.Length = 0;
+			SecurityBlob->DomainName.MaximumLength = 0;
+		} else {
+			__u16 len =
+			    cifs_strtoUCS((wchar_t *) bcc_ptr, domain, 64,
+					  nls_codepage);
+			len *= 2;
+			SecurityBlob->DomainName.MaximumLength =
+			    cpu_to_le16(len);
+			SecurityBlob->DomainName.Buffer =
+			    cpu_to_le32(SecurityBlobLength);
+			bcc_ptr += len;
+			SecurityBlobLength += len;
+			SecurityBlob->DomainName.Length =
+			    cpu_to_le16(len);
+		}
+		if (user == NULL) {
+			SecurityBlob->UserName.Buffer = 0;
+			SecurityBlob->UserName.Length = 0;
+			SecurityBlob->UserName.MaximumLength = 0;
+		} else {
+			__u16 len =
+			    cifs_strtoUCS((wchar_t *) bcc_ptr, user, 64,
+					  nls_codepage);
+			len *= 2;
+			SecurityBlob->UserName.MaximumLength =
+			    cpu_to_le16(len);
+			SecurityBlob->UserName.Buffer =
+			    cpu_to_le32(SecurityBlobLength);
+			bcc_ptr += len;
+			SecurityBlobLength += len;
+			SecurityBlob->UserName.Length =
+			    cpu_to_le16(len);
+		}
+
+		/* SecurityBlob->WorkstationName.Length = cifs_strtoUCS((wchar_t *) bcc_ptr, "AMACHINE",64, nls_codepage);
+		   SecurityBlob->WorkstationName.Length *= 2;
+		   SecurityBlob->WorkstationName.MaximumLength = cpu_to_le16(SecurityBlob->WorkstationName.Length);
+		   SecurityBlob->WorkstationName.Buffer = cpu_to_le32(SecurityBlobLength);
+		   bcc_ptr += SecurityBlob->WorkstationName.Length;
+		   SecurityBlobLength += SecurityBlob->WorkstationName.Length;
+		   SecurityBlob->WorkstationName.Length = cpu_to_le16(SecurityBlob->WorkstationName.Length);  */
+
+		if ((long) bcc_ptr % 2) {
+			*bcc_ptr = 0;
+			bcc_ptr++;
+		}
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, "Linux version ",
+				  32, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, system_utsname.release, 32,
+				  nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		bcc_ptr += 2;	/* null term version string */
+		bytes_returned =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, CIFS_NETWORK_OPSYS,
+				  64, nls_codepage);
+		bcc_ptr += 2 * bytes_returned;
+		*(bcc_ptr + 1) = 0;
+		*(bcc_ptr + 2) = 0;
+		bcc_ptr += 2;	/* null terminate network opsys string */
+		*(bcc_ptr + 1) = 0;
+		*(bcc_ptr + 2) = 0;
+		bcc_ptr += 2;	/* null domain */
+	} else {		/* ASCII */
+		if (domain == NULL) {
+			SecurityBlob->DomainName.Buffer = 0;
+			SecurityBlob->DomainName.Length = 0;
+			SecurityBlob->DomainName.MaximumLength = 0;
+		} else {
+			__u16 len;
+			negotiate_flags |= NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED;
+			strncpy(bcc_ptr, domain, 63);
+			len = strnlen(domain, 64);
+			SecurityBlob->DomainName.MaximumLength =
+			    cpu_to_le16(len);
+			SecurityBlob->DomainName.Buffer =
+			    cpu_to_le32(SecurityBlobLength);
+			bcc_ptr += len;
+			SecurityBlobLength += len;
+			SecurityBlob->DomainName.Length = cpu_to_le16(len);
+		}
+		if (user == NULL) {
+			SecurityBlob->UserName.Buffer = 0;
+			SecurityBlob->UserName.Length = 0;
+			SecurityBlob->UserName.MaximumLength = 0;
+		} else {
+			__u16 len;
+			strncpy(bcc_ptr, user, 63);
+			len = strnlen(user, 64);
+			SecurityBlob->UserName.MaximumLength =
+			    cpu_to_le16(len);
+			SecurityBlob->UserName.Buffer =
+			    cpu_to_le32(SecurityBlobLength);
+			bcc_ptr += len;
+			SecurityBlobLength += len;
+			SecurityBlob->UserName.Length = cpu_to_le16(len);
+		}
+		/* BB fill in our workstation name if known BB */
+
+		strcpy(bcc_ptr, "Linux version ");
+		bcc_ptr += strlen("Linux version ");
+		strcpy(bcc_ptr, system_utsname.release);
+		bcc_ptr += strlen(system_utsname.release) + 1;
+		strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
+		bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
+		bcc_ptr++;	/* null domain */
+		*bcc_ptr = 0;
+	}
+	SecurityBlob->NegotiateFlags = cpu_to_le32(negotiate_flags);
+	pSMB->req.SecurityBlobLength = cpu_to_le16(SecurityBlobLength);
+	count = (long) bcc_ptr - (long) pByteArea(smb_buffer);
+	smb_buffer->smb_buf_length += count;
+	pSMB->req.ByteCount = cpu_to_le16(count);
+
+	rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
+			 &bytes_returned, 1);
+	if (rc) {
+/*    rc = map_smb_to_linux_error(smb_buffer_response);  *//* done in SendReceive now */
+	} else if ((smb_buffer_response->WordCount == 3)
+		   || (smb_buffer_response->WordCount == 4)) {
+		__u16 action = le16_to_cpu(pSMBr->resp.Action);
+		__u16 blob_len =
+		    le16_to_cpu(pSMBr->resp.SecurityBlobLength);
+		if (action & GUEST_LOGIN)
+			cFYI(1, (" Guest login"));	/* BB do we want to set anything in SesInfo struct ? */
+/*        if(SecurityBlob2->MessageType != NtLm??){                               
+                 cFYI("Unexpected message type on auth response is %d ")); 
+        } */
+		if (ses) {
+			cFYI(1,
+			     ("Does UID on challenge %d match auth response UID %d ",
+			      ses->Suid, smb_buffer_response->Uid));
+			ses->Suid = smb_buffer_response->Uid; /* UID left in wire format */
+			bcc_ptr = pByteArea(smb_buffer_response);	
+            /* response can have either 3 or 4 word count - Samba sends 3 */
+			if ((pSMBr->resp.hdr.WordCount == 3)
+			    || ((pSMBr->resp.hdr.WordCount == 4)
+				&& (blob_len <
+				    pSMBr->resp.ByteCount))) {
+				if (pSMBr->resp.hdr.WordCount == 4) {
+					bcc_ptr +=
+					    blob_len;
+					cFYI(1,
+					     ("Security Blob Length %d ",
+					      blob_len));
+				}
+
+				cFYI(1,
+				     ("NTLMSSP response to Authenticate "));
+
+				if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
+					if ((long) (bcc_ptr) % 2) {
+						remaining_words =
+						    (BCC(smb_buffer_response)
+						     - 1) / 2;
+						bcc_ptr++;	/* Unicode strings must be word aligned */
+					} else {
+						remaining_words = BCC(smb_buffer_response) / 2;
+					}
+					len =
+					    UniStrnlen((wchar_t *) bcc_ptr,remaining_words - 1);
+/* We look for obvious messed up bcc or strings in response so we do not go off
+  the end since (at least) WIN2K and Windows XP have a major bug in not null
+  terminating last Unicode string in response  */
+					ses->serverOS =
+					    cifs_kcalloc(2 * (len + 1), GFP_KERNEL);
+					cifs_strfromUCS_le(ses->serverOS,
+							   (wchar_t *)
+							   bcc_ptr, len,
+							   nls_codepage);
+					bcc_ptr += 2 * (len + 1);
+					remaining_words -= len + 1;
+					ses->serverOS[2 * len] = 0;
+					ses->serverOS[1 + (2 * len)] = 0;
+					if (remaining_words > 0) {
+						len = UniStrnlen((wchar_t *)
+								 bcc_ptr,
+								 remaining_words
+								 - 1);
+						ses->serverNOS =
+						    cifs_kcalloc(2 * (len + 1),
+							    GFP_KERNEL);
+						cifs_strfromUCS_le(ses->
+								   serverNOS,
+								   (wchar_t *)
+								   bcc_ptr,
+								   len,
+								   nls_codepage);
+						bcc_ptr += 2 * (len + 1);
+						ses->serverNOS[2 * len] = 0;
+						ses->serverNOS[1+(2*len)] = 0;
+						remaining_words -= len + 1;
+						if (remaining_words > 0) {
+							len = UniStrnlen((wchar_t *) bcc_ptr, remaining_words);	
+     /* last string not always null terminated (e.g. for Windows XP & 2000) */
+							ses->serverDomain =
+							    cifs_kcalloc(2 *
+								    (len +
+								     1),
+								    GFP_KERNEL);
+							cifs_strfromUCS_le
+							    (ses->
+							     serverDomain,
+							     (wchar_t *)
+							     bcc_ptr, len,
+							     nls_codepage);
+							bcc_ptr +=
+							    2 * (len + 1);
+							ses->
+							    serverDomain[2
+									 * len]
+							    = 0;
+							ses->
+							    serverDomain[1
+									 +
+									 (2
+									  *
+									  len)]
+							    = 0;
+						} /* else no more room so create dummy domain string */
+						else
+							ses->serverDomain = cifs_kcalloc(2,GFP_KERNEL);
+					} else {  /* no room so create dummy domain and NOS string */
+						ses->serverDomain = cifs_kcalloc(2, GFP_KERNEL);
+						ses->serverNOS = cifs_kcalloc(2, GFP_KERNEL);
+					}
+				} else {	/* ASCII */
+					len = strnlen(bcc_ptr, 1024);
+					if (((long) bcc_ptr + len) - 
+                        (long) pByteArea(smb_buffer_response) 
+                            <= BCC(smb_buffer_response)) {
+						ses->serverOS = cifs_kcalloc(len + 1,GFP_KERNEL);
+						strncpy(ses->serverOS,bcc_ptr, len);
+
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;	/* null terminate the string */
+						bcc_ptr++;
+
+						len = strnlen(bcc_ptr, 1024);
+						ses->serverNOS = cifs_kcalloc(len+1,GFP_KERNEL);
+						strncpy(ses->serverNOS, bcc_ptr, len);	
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;
+						bcc_ptr++;
+
+						len = strnlen(bcc_ptr, 1024);
+						ses->serverDomain = cifs_kcalloc(len+1,GFP_KERNEL);
+						strncpy(ses->serverDomain, bcc_ptr, len);
+						bcc_ptr += len;
+						bcc_ptr[0] = 0;
+						bcc_ptr++;
+					} else
+						cFYI(1,
+						     ("Variable field of length %d extends beyond end of smb ",
+						      len));
+				}
+			} else {
+				cERROR(1,
+				       (" Security Blob Length extends beyond end of SMB"));
+			}
+		} else {
+			cERROR(1, ("No session structure passed in."));
+		}
+	} else {
+		cERROR(1,
+		       (" Invalid Word count %d: ",
+			smb_buffer_response->WordCount));
+		rc = -EIO;
+	}
+
+	if (smb_buffer)
+		cifs_buf_release(smb_buffer);
+
+	return rc;
+}
+
+int
+CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
+	 const char *tree, struct cifsTconInfo *tcon,
+	 const struct nls_table *nls_codepage)
+{
+	struct smb_hdr *smb_buffer;
+	struct smb_hdr *smb_buffer_response;
+	TCONX_REQ *pSMB;
+	TCONX_RSP *pSMBr;
+	unsigned char *bcc_ptr;
+	int rc = 0;
+	int length;
+	__u16 count;
+
+	if (ses == NULL)
+		return -EIO;
+
+	smb_buffer = cifs_buf_get();
+	if (smb_buffer == NULL) {
+		return -ENOMEM;
+	}
+	smb_buffer_response = smb_buffer;
+
+	header_assemble(smb_buffer, SMB_COM_TREE_CONNECT_ANDX,
+			NULL /*no tid */ , 4 /*wct */ );
+	smb_buffer->Uid = ses->Suid;
+	pSMB = (TCONX_REQ *) smb_buffer;
+	pSMBr = (TCONX_RSP *) smb_buffer_response;
+
+	pSMB->AndXCommand = 0xFF;
+	pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO);
+	pSMB->PasswordLength = cpu_to_le16(1);	/* minimum */
+	bcc_ptr = &pSMB->Password[0];
+	bcc_ptr++;		/* skip password */
+
+	if(ses->server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+		smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
+
+	if (ses->capabilities & CAP_STATUS32) {
+		smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS;
+	}
+	if (ses->capabilities & CAP_DFS) {
+		smb_buffer->Flags2 |= SMBFLG2_DFS;
+	}
+	if (ses->capabilities & CAP_UNICODE) {
+		smb_buffer->Flags2 |= SMBFLG2_UNICODE;
+		length =
+		    cifs_strtoUCS((wchar_t *) bcc_ptr, tree, 100, nls_codepage);
+		bcc_ptr += 2 * length;	/* convert num of 16 bit words to bytes */
+		bcc_ptr += 2;	/* skip trailing null */
+	} else {		/* ASCII */
+
+		strcpy(bcc_ptr, tree);
+		bcc_ptr += strlen(tree) + 1;
+	}
+	strcpy(bcc_ptr, "?????");
+	bcc_ptr += strlen("?????");
+	bcc_ptr += 1;
+	count = bcc_ptr - &pSMB->Password[0];
+	pSMB->hdr.smb_buf_length += count;
+	pSMB->ByteCount = cpu_to_le16(count);
+
+	rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length, 0);
+
+	/* if (rc) rc = map_smb_to_linux_error(smb_buffer_response); */
+	/* above now done in SendReceive */
+	if ((rc == 0) && (tcon != NULL)) {
+		tcon->tidStatus = CifsGood;
+		tcon->tid = smb_buffer_response->Tid;
+		bcc_ptr = pByteArea(smb_buffer_response);
+		length = strnlen(bcc_ptr, BCC(smb_buffer_response) - 2);
+        /* skip service field (NB: this field is always ASCII) */
+		bcc_ptr += length + 1;	
+		strncpy(tcon->treeName, tree, MAX_TREE_SIZE);
+		if (smb_buffer->Flags2 & SMBFLG2_UNICODE) {
+			length = UniStrnlen((wchar_t *) bcc_ptr, 512);
+			if ((bcc_ptr + (2 * length)) -
+			     pByteArea(smb_buffer_response) <=
+			    BCC(smb_buffer_response)) {
+				if(tcon->nativeFileSystem)
+					kfree(tcon->nativeFileSystem);
+				tcon->nativeFileSystem =
+				    cifs_kcalloc(length + 2, GFP_KERNEL);
+				cifs_strfromUCS_le(tcon->nativeFileSystem,
+						   (wchar_t *) bcc_ptr,
+						   length, nls_codepage);
+				bcc_ptr += 2 * length;
+				bcc_ptr[0] = 0;	/* null terminate the string */
+				bcc_ptr[1] = 0;
+				bcc_ptr += 2;
+			}
+			/* else do not bother copying these informational fields */
+		} else {
+			length = strnlen(bcc_ptr, 1024);
+			if ((bcc_ptr + length) -
+			    pByteArea(smb_buffer_response) <=
+			    BCC(smb_buffer_response)) {
+				if(tcon->nativeFileSystem)
+					kfree(tcon->nativeFileSystem);
+				tcon->nativeFileSystem =
+				    cifs_kcalloc(length + 1, GFP_KERNEL);
+				strncpy(tcon->nativeFileSystem, bcc_ptr,
+					length);
+			}
+			/* else do not bother copying these informational fields */
+		}
+		tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport);
+		cFYI(1, ("Tcon flags: 0x%x ", tcon->Flags));
+	} else if ((rc == 0) && tcon == NULL) {
+        /* all we need to save for IPC$ connection */
+		ses->ipc_tid = smb_buffer_response->Tid;
+	}
+
+	if (smb_buffer)
+		cifs_buf_release(smb_buffer);
+	return rc;
+}
+
+int
+cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
+{
+	int rc = 0;
+	int xid;
+	struct cifsSesInfo *ses = NULL;
+	struct task_struct *cifsd_task;
+
+	xid = GetXid();
+
+	if (cifs_sb->tcon) {
+		ses = cifs_sb->tcon->ses; /* save ptr to ses before delete tcon!*/
+		rc = CIFSSMBTDis(xid, cifs_sb->tcon);
+		if (rc == -EBUSY) {
+			FreeXid(xid);
+			return 0;
+		}
+		tconInfoFree(cifs_sb->tcon);
+		if ((ses) && (ses->server)) {
+			/* save off task so we do not refer to ses later */
+			cifsd_task = ses->server->tsk;
+			cFYI(1, ("About to do SMBLogoff "));
+			rc = CIFSSMBLogoff(xid, ses);
+			if (rc == -EBUSY) {
+				FreeXid(xid);
+				return 0;
+			} else if (rc == -ESHUTDOWN) {
+				cFYI(1,("Waking up socket by sending it signal"));
+				if(cifsd_task)
+					send_sig(SIGKILL,cifsd_task,1);
+				rc = 0;
+			} /* else - we have an smb session
+				left on this socket do not kill cifsd */
+		} else
+			cFYI(1, ("No session or bad tcon"));
+	}
+	
+	cifs_sb->tcon = NULL;
+	if (ses) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(HZ / 2);
+	}
+	if (ses)
+		sesInfoFree(ses);
+
+	FreeXid(xid);
+	return rc;		/* BB check if we should always return zero here */
+} 
+
+int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
+					   struct nls_table * nls_info)
+{
+	int rc = 0;
+	char ntlm_session_key[CIFS_SESSION_KEY_SIZE];
+	int ntlmv2_flag = FALSE;
+
+	/* what if server changes its buffer size after dropping the session? */
+	if(pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ {
+		rc = CIFSSMBNegotiate(xid, pSesInfo);
+		if(rc == -EAGAIN) /* retry only once on 1st time connection */ {
+			rc = CIFSSMBNegotiate(xid, pSesInfo);
+			if(rc == -EAGAIN) 
+				rc = -EHOSTDOWN;
+		}
+		if(rc == 0) {
+			spin_lock(&GlobalMid_Lock);
+			if(pSesInfo->server->tcpStatus != CifsExiting)
+				pSesInfo->server->tcpStatus = CifsGood;
+			else
+				rc = -EHOSTDOWN;
+			spin_unlock(&GlobalMid_Lock);
+
+		}
+	}
+	if (!rc) {
+		pSesInfo->capabilities = pSesInfo->server->capabilities;
+		if(linuxExtEnabled == 0)
+			pSesInfo->capabilities &= (~CAP_UNIX);
+		pSesInfo->sequence_number = 0;
+		cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x Time Zone: %d",
+			pSesInfo->server->secMode,
+			pSesInfo->server->capabilities,
+			pSesInfo->server->timeZone));
+		if (extended_security
+				&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+				&& (pSesInfo->server->secType == NTLMSSP)) {
+			cFYI(1, ("New style sesssetup "));
+			rc = CIFSSpnegoSessSetup(xid, pSesInfo,
+				NULL /* security blob */, 
+				0 /* blob length */,
+				nls_info);
+		} else if (extended_security
+			   && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+			   && (pSesInfo->server->secType == RawNTLMSSP)) {
+			cFYI(1, ("NTLMSSP sesssetup "));
+			rc = CIFSNTLMSSPNegotiateSessSetup(xid,
+						pSesInfo,
+						&ntlmv2_flag,
+						nls_info);
+			if (!rc) {
+				if(ntlmv2_flag) {
+					char * v2_response;
+					cFYI(1,("Can use more secure NTLM version 2 password hash"));
+					if(CalcNTLMv2_partial_mac_key(pSesInfo, 
+						nls_info)) {
+						rc = -ENOMEM;
+						goto ss_err_exit;
+					} else
+						v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL);
+					if(v2_response) {
+						CalcNTLMv2_response(pSesInfo,v2_response);
+/*						cifs_calculate_ntlmv2_mac_key(pSesInfo->mac_signing_key, response, ntlm_session_key, */
+						kfree(v2_response);
+					/* BB Put dummy sig in SessSetup PDU? */
+					} else {
+						rc = -ENOMEM;
+						goto ss_err_exit;
+					}
+
+				} else {
+					SMBNTencrypt(pSesInfo->password,
+						pSesInfo->server->cryptKey,
+						ntlm_session_key);
+
+					cifs_calculate_mac_key(pSesInfo->mac_signing_key,
+						ntlm_session_key,
+						pSesInfo->password);
+				}
+			/* for better security the weaker lanman hash not sent
+			   in AuthSessSetup so we no longer calculate it */
+
+				rc = CIFSNTLMSSPAuthSessSetup(xid,
+					pSesInfo,
+					ntlm_session_key,
+					ntlmv2_flag,
+					nls_info);
+			}
+		} else { /* old style NTLM 0.12 session setup */
+			SMBNTencrypt(pSesInfo->password,
+				pSesInfo->server->cryptKey,
+				ntlm_session_key);
+
+			cifs_calculate_mac_key(pSesInfo->mac_signing_key, 
+				ntlm_session_key, pSesInfo->password);
+			rc = CIFSSessSetup(xid, pSesInfo,
+				ntlm_session_key, nls_info);
+		}
+		if (rc) {
+			cERROR(1,("Send error in SessSetup = %d",rc));
+		} else {
+			cFYI(1,("CIFS Session Established successfully"));
+			pSesInfo->status = CifsGood;
+		}
+	}
+ss_err_exit:
+	return rc;
+}
+