Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (27 commits)
  [CIFS] Missing flags2 for DFS
  [CIFS] Workaround incomplete byte length returned by some
  [CIFS] cifs Kconfig: don't select CONNECTOR
  [CIFS] Level 1 QPathInfo needed for proper OS2 support
  [CIFS] fix typo in previous patch
  [CIFS] Fix old DOS time conversion to handle timezone
  [CIFS] Do not need to adjust for Jan/Feb for leap day
  [CIFS] Fix leaps year calculation for years after 2100
  [CIFS] readdir (ffirst) enablement of accurate timestamps from legacy servers
  [CIFS] Fix compiler warning with previous patch
  [CIFS] Fix typo
  [CIFS] Allow for 15 minute TZs (e.g. Nepal) and be more explicit about
  [CIFS] Fix readdir of large directories for backlevel servers
  [CIFS] Allow LANMAN21 support even in both POSIX non-POSIX path
  [CIFS] Make use of newer QFSInfo dependent on capability bit instead of
  [CIFS] Do not send newer QFSInfo to legacy servers which can not support it
  [CIFS] Fix typo in name of new cifs_show_stats
  [CIFS] Rename server time zone field
  [CIFS] Handle legacy servers which return undefined time zone
  [CIFS] CIFS support for /proc/<pid>/mountstats part 1
  ...

Manual conflict resolution in fs/cifs/connect.c

fs/Kconfig

@@ -1986,7 +1986,7 @@ config CIFS_EXPERIMENTAL
 config CIFS_UPCALL
 	  bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
 	  depends on CIFS_EXPERIMENTAL
-	  select CONNECTOR
+	  depends on CONNECTOR
 	  help
 	    Enables an upcall mechanism for CIFS which will be used to contact
 	    userspace helper utilities to provide SPNEGO packaged Kerberos

fs/cifs/cifsacl.h

@@ -31,8 +31,8 @@ struct cifs_sid {
 } __attribute__((packed));
 
 /* everyone */
-extern const struct cifs_sid sid_everyone;
+/* extern const struct cifs_sid sid_everyone;*/
 /* group users */
-extern const struct cifs_sid sid_user;
+/* extern const struct cifs_sid sid_user;*/
 
 #endif /* _CIFSACL_H */

fs/cifs/cifsencrypt.h

@@ -27,8 +27,6 @@ extern void mdfour(unsigned char *out, unsigned char *in, int n);
 /* smbdes.c */
 extern void E_P16(unsigned char *p14, unsigned char *p16);
 extern void E_P24(unsigned char *p21, unsigned char *c8, unsigned char *p24);
-extern void D_P16(unsigned char *p14, unsigned char *in, unsigned char *out);
-extern void E_old_pw_hash(unsigned char *, unsigned char *, unsigned char *);
 
 
 

fs/cifs/cifsfs.c

@@ -63,6 +63,7 @@ extern struct task_struct * oplockThread; /* remove sparse warning */
 struct task_struct * oplockThread = NULL;
 extern struct task_struct * dnotifyThread; /* remove sparse warning */
 struct task_struct * dnotifyThread = NULL;
+static struct super_operations cifs_super_ops; 
 unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE;
 module_param(CIFSMaxBufSize, int, 0);
 MODULE_PARM_DESC(CIFSMaxBufSize,"Network buffer size (not including header). Default: 16384 Range: 8192 to 130048");
@@ -198,10 +199,12 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
     /* Only need to call the old QFSInfo if failed
     on newer one */
     if(rc)
-	rc = CIFSSMBQFSInfo(xid, pTcon, buf);
+	if(pTcon->ses->capabilities & CAP_NT_SMBS)
+		rc = CIFSSMBQFSInfo(xid, pTcon, buf); /* not supported by OS2 */
 
-	/* Old Windows servers do not support level 103, retry with level 
-	   one if old server failed the previous call */ 
+	/* Some old Windows servers also do not support level 103, retry with
+	   older level one if old server failed the previous call or we
+	   bypassed it because we detected that this was an older LANMAN sess */
 	if(rc)
 		rc = SMBOldQFSInfo(xid, pTcon, buf);
 	/*     
@@ -435,13 +438,21 @@ static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags)
 	return;
 }
 
+#ifdef CONFIG_CIFS_STATS2
+static int cifs_show_stats(struct seq_file *s, struct vfsmount *mnt)
+{
+	/* BB FIXME */
+	return 0;
+}
+#endif
+
 static int cifs_remount(struct super_block *sb, int *flags, char *data)
 {
 	*flags |= MS_NODIRATIME;
 	return 0;
 }
 
-struct super_operations cifs_super_ops = {
+static struct super_operations cifs_super_ops = {
 	.read_inode = cifs_read_inode,
 	.put_super = cifs_put_super,
 	.statfs = cifs_statfs,
@@ -454,6 +465,9 @@ struct super_operations cifs_super_ops = {
 	.show_options = cifs_show_options,
 	.umount_begin   = cifs_umount_begin,
 	.remount_fs = cifs_remount,
+#ifdef CONFIG_CIFS_STATS2
+	.show_stats = cifs_show_stats,
+#endif
 };
 
 static int
@@ -495,7 +509,7 @@ static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
 {
 	/* origin == SEEK_END => we must revalidate the cached file length */
-	if (origin == 2) {
+	if (origin == SEEK_END) {
 		int retval = cifs_revalidate(file->f_dentry);
 		if (retval < 0)
 			return (loff_t)retval;
@@ -903,7 +917,7 @@ init_cifs(void)
 #ifdef CONFIG_PROC_FS
 	cifs_proc_init();
 #endif
-	INIT_LIST_HEAD(&GlobalServerList);	/* BB not implemented yet */
+/*	INIT_LIST_HEAD(&GlobalServerList);*/	/* BB not implemented yet */
 	INIT_LIST_HEAD(&GlobalSMBSessionList);
 	INIT_LIST_HEAD(&GlobalTreeConnectionList);
 	INIT_LIST_HEAD(&GlobalOplock_Q);
@@ -931,6 +945,7 @@ init_cifs(void)
 	GlobalCurrentXid = 0;
 	GlobalTotalActiveXid = 0;
 	GlobalMaxActiveXid = 0;
+	memset(Local_System_Name, 0, 15);
 	rwlock_init(&GlobalSMBSeslock);
 	spin_lock_init(&GlobalMid_Lock);
 

fs/cifs/cifsfs.h

@@ -36,7 +36,7 @@ extern const struct address_space_operations cifs_addr_ops;
 extern const struct address_space_operations cifs_addr_ops_smallbuf;
 
 /* Functions related to super block operations */
-extern struct super_operations cifs_super_ops;
+/* extern struct super_operations cifs_super_ops;*/
 extern void cifs_read_inode(struct inode *);
 extern void cifs_delete_inode(struct inode *);
 /* extern void cifs_write_inode(struct inode *); *//* BB not needed yet */

fs/cifs/cifsglob.h

@@ -153,7 +153,7 @@ struct TCP_Server_Info {
 	char sessid[4];		/* unique token id for this session */
 	/* (returned on Negotiate */
 	int capabilities; /* allow selective disabling of caps by smb sess */
-	__u16 timeZone;
+	int timeAdj;  /* Adjust for difference in server time zone in sec */
 	__u16 CurrentMid;         /* multiplex id - rotating counter */
 	char cryptKey[CIFS_CRYPTO_KEY_SIZE];
 	/* 16th byte of RFC1001 workstation name is always null */
@@ -203,9 +203,14 @@ struct cifsSesInfo {
 	char * domainName;
 	char * password;
 };
-/* session flags */
+/* no more than one of the following three session flags may be set */
 #define CIFS_SES_NT4 1
-
+#define CIFS_SES_OS2 2
+#define CIFS_SES_W9X 4
+/* following flag is set for old servers such as OS2 (and Win95?)
+   which do not negotiate NTLM or POSIX dialects, but instead
+   negotiate one of the older LANMAN dialects */
+#define CIFS_SES_LANMAN 8
 /*
  * there is one of these for each connection to a resource on a particular
  * session 
@@ -512,7 +517,8 @@ require use of the stronger protocol */
  * This list helps improve performance and eliminate the messages indicating
  * that we had a communications error talking to the server in this list. 
  */
-GLOBAL_EXTERN struct servers_not_supported *NotSuppList;	/*@z4a */
+/* Feature not supported */
+/* GLOBAL_EXTERN struct servers_not_supported *NotSuppList; */
 
 /*
  * The following is a hash table of all the users we know about.
@@ -568,7 +574,6 @@ GLOBAL_EXTERN unsigned int lookupCacheEnabled;
 GLOBAL_EXTERN unsigned int extended_security;	/* if on, session setup sent 
 				with more secure ntlmssp2 challenge/resp */
 GLOBAL_EXTERN unsigned int sign_CIFS_PDUs;  /* enable smb packet signing */
-GLOBAL_EXTERN unsigned int secFlags;
 GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
 GLOBAL_EXTERN unsigned int CIFSMaxBufSize;  /* max size not including hdr */
 GLOBAL_EXTERN unsigned int cifs_min_rcv;    /* min size of big ntwrk buf pool */

fs/cifs/cifspdu.h

@@ -26,7 +26,8 @@
 
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 #define LANMAN_PROT 0
-#define CIFS_PROT   1
+#define LANMAN2_PROT 1
+#define CIFS_PROT   2
 #else
 #define CIFS_PROT   0
 #endif
@@ -408,6 +409,8 @@ typedef struct negotiate_req {
 
 /* Dialect index is 13 for LANMAN */
 
+#define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
+
 typedef struct lanman_neg_rsp {
 	struct smb_hdr hdr;	/* wct = 13 */
 	__le16 DialectIndex;
@@ -417,7 +420,10 @@ typedef struct lanman_neg_rsp {
 	__le16 MaxNumberVcs;
 	__le16 RawMode;
 	__le32 SessionKey;
-	__le32 ServerTime;
+	struct {
+		__le16 Time;
+		__le16 Date;
+	} __attribute__((packed)) SrvTime;
 	__le16 ServerTimeZone;
 	__le16 EncryptionKeyLength;
 	__le16 Reserved;
@@ -674,7 +680,7 @@ typedef union smb_com_tree_disconnect {	/* as an altetnative can use flag on
 typedef struct smb_com_close_req {
 	struct smb_hdr hdr;	/* wct = 3 */
 	__u16 FileID;
-	__u32 LastWriteTime;	/* should be zero */
+	__u32 LastWriteTime;	/* should be zero or -1 */
 	__u16 ByteCount;	/* 0 */
 } __attribute__((packed)) CLOSE_REQ;
 

fs/cifs/cifsproto.h

@@ -50,12 +50,12 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
 extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
 			struct kvec *, int /* nvec to send */, 
 			int * /* type of buf returned */ , const int long_op);
-extern int SendReceiveBlockingLock(const unsigned int /* xid */ , struct cifsTconInfo *,
+extern int SendReceiveBlockingLock(const unsigned int /* xid */ , 
+					struct cifsTconInfo *,
 				struct smb_hdr * /* input */ ,
 				struct smb_hdr * /* out */ ,
 				int * /* bytes returned */);
-extern int checkSMBhdr(struct smb_hdr *smb, __u16 mid);
-extern int checkSMB(struct smb_hdr *smb, __u16 mid, int length);
+extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
 extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
 extern int is_size_safe_to_change(struct cifsInodeInfo *);
 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
@@ -80,6 +80,9 @@ extern struct oplock_q_entry * AllocOplockQEntry(struct inode *, u16,
 extern void DeleteOplockQEntry(struct oplock_q_entry *);
 extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
 extern u64 cifs_UnixTimeToNT(struct timespec);
+extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
+extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
+
 extern int cifs_get_inode_info(struct inode **pinode,
 			const unsigned char *search_path, 
 			FILE_ALL_INFO * pfile_info,
@@ -116,6 +119,7 @@ extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
 extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
 			const unsigned char *searchName,
 			FILE_ALL_INFO * findData,
+			int legacy /* whether to use old info level */,
 			const struct nls_table *nls_codepage, int remap);
 extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
                         const unsigned char *searchName,
@@ -279,8 +283,6 @@ extern void sesInfoFree(struct cifsSesInfo *);
 extern struct cifsTconInfo *tconInfoAlloc(void);
 extern void tconInfoFree(struct cifsTconInfo *);
 
-extern int cifs_reconnect(struct TCP_Server_Info *server);
-
 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *,__u32 *);
 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 			  __u32 *);

fs/cifs/cifssmb.c

@@ -46,6 +46,7 @@ static struct {
 } protocols[] = {
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 	{LANMAN_PROT, "\2LM1.2X002"},
+	{LANMAN2_PROT, "\2LANMAN2.1"},
 #endif /* weak password hashing for legacy clients */
 	{CIFS_PROT, "\2NT LM 0.12"}, 
 	{POSIX_PROT, "\2POSIX 2"},
@@ -58,6 +59,7 @@ static struct {
 } protocols[] = {
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 	{LANMAN_PROT, "\2LM1.2X002"},
+	{LANMAN2_PROT, "\2LANMAN2.1"},
 #endif /* weak password hashing for legacy clients */
 	{CIFS_PROT, "\2NT LM 0.12"}, 
 	{BAD_PROT, "\2"}
@@ -67,13 +69,13 @@ static struct {
 /* define the number of elements in the cifs dialect array */
 #ifdef CONFIG_CIFS_POSIX
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
-#define CIFS_NUM_PROT 3
+#define CIFS_NUM_PROT 4
 #else
 #define CIFS_NUM_PROT 2
 #endif /* CIFS_WEAK_PW_HASH */
 #else /* not posix */
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
-#define CIFS_NUM_PROT 2
+#define CIFS_NUM_PROT 3
 #else
 #define CIFS_NUM_PROT 1
 #endif /* CONFIG_CIFS_WEAK_PW_HASH */
@@ -446,7 +448,9 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
 		goto neg_err_exit;
 #ifdef CONFIG_CIFS_WEAK_PW_HASH 
 	} else if((pSMBr->hdr.WordCount == 13)
-			&& (pSMBr->DialectIndex == LANMAN_PROT)) {
+			&& ((pSMBr->DialectIndex == LANMAN_PROT)
+				|| (pSMBr->DialectIndex == LANMAN2_PROT))) {
+		__s16 tmp;
 		struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr;
 
 		if((secFlags & CIFSSEC_MAY_LANMAN) || 
@@ -472,12 +476,44 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
 			server->maxRw = 0;/* we do not need to use raw anyway */
 			server->capabilities = CAP_MPX_MODE;
 		}
-		server->timeZone = le16_to_cpu(rsp->ServerTimeZone);
+		tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone);
+		if (tmp == -1) {
+			/* OS/2 often does not set timezone therefore
+			 * we must use server time to calc time zone.
+			 * Could deviate slightly from the right zone.
+			 * Smallest defined timezone difference is 15 minutes
+			 * (i.e. Nepal).  Rounding up/down is done to match
+			 * this requirement.
+			 */
+			int val, seconds, remain, result;
+			struct timespec ts, utc;
+			utc = CURRENT_TIME;
+			ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date),
+						le16_to_cpu(rsp->SrvTime.Time));
+			cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d",
+				(int)ts.tv_sec, (int)utc.tv_sec, 
+				(int)(utc.tv_sec - ts.tv_sec)));
+			val = (int)(utc.tv_sec - ts.tv_sec);
+			seconds = val < 0 ? -val : val;
+			result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ;
+			remain = seconds % MIN_TZ_ADJ;
+			if(remain >= (MIN_TZ_ADJ / 2))
+				result += MIN_TZ_ADJ;
+			if(val < 0)
+				result = - result;
+			server->timeAdj = result;
+		} else {
+			server->timeAdj = (int)tmp;
+			server->timeAdj *= 60; /* also in seconds */
+		}
+		cFYI(1,("server->timeAdj: %d seconds", server->timeAdj));
+
 
 		/* BB get server time for time conversions and add
 		code to use it and timezone since this is not UTC */	
 
-		if (rsp->EncryptionKeyLength == cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) {
+		if (rsp->EncryptionKeyLength == 
+				cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) {
 			memcpy(server->cryptKey, rsp->EncryptionKey,
 				CIFS_CRYPTO_KEY_SIZE);
 		} else if (server->secMode & SECMODE_PW_ENCRYPT) {
@@ -531,7 +567,8 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
 	cFYI(0, ("Max buf = %d", ses->server->maxBuf));
 	GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
 	server->capabilities = le32_to_cpu(pSMBr->Capabilities);
-	server->timeZone = le16_to_cpu(pSMBr->ServerTimeZone);	
+	server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone);
+	server->timeAdj *= 60;
 	if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) {
 		memcpy(server->cryptKey, pSMBr->u.EncryptionKey,
 		       CIFS_CRYPTO_KEY_SIZE);
@@ -1617,7 +1654,7 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
 	pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */
 
 	pSMB->FileID = (__u16) smb_file_id;
-	pSMB->LastWriteTime = 0;
+	pSMB->LastWriteTime = 0xFFFFFFFF;
 	pSMB->ByteCount = 0;
 	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
 			 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
@@ -2773,9 +2810,11 @@ GetExtAttrOut:
 
 
 /* security id for everyone */
-const struct cifs_sid sid_everyone = {1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
+const static struct cifs_sid sid_everyone = 
+		{1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
 /* group users */
-const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}};
+const static struct cifs_sid sid_user = 
+		{1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}};
 
 /* Convert CIFS ACL to POSIX form */
 static int parse_sec_desc(struct cifs_sid * psec_desc, int acl_len)
@@ -2856,7 +2895,6 @@ qsec_out:
 	return rc;
 }
 
-
 /* Legacy Query Path Information call for lookup to old servers such
    as Win9x/WinME */
 int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
@@ -2898,7 +2936,16 @@ QInfRetry:
 	if (rc) {
 		cFYI(1, ("Send error in QueryInfo = %d", rc));
 	} else if (pFinfo) {            /* decode response */
+		struct timespec ts;
+		__u32 time = le32_to_cpu(pSMBr->last_write_time);
+		/* BB FIXME - add time zone adjustment BB */
 		memset(pFinfo, 0, sizeof(FILE_ALL_INFO));
+		ts.tv_nsec = 0;
+		ts.tv_sec = time;
+		/* decode time fields */
+		pFinfo->ChangeTime = cifs_UnixTimeToNT(ts);
+		pFinfo->LastWriteTime = pFinfo->ChangeTime;
+		pFinfo->LastAccessTime = 0;
 		pFinfo->AllocationSize =
 			cpu_to_le64(le32_to_cpu(pSMBr->size));
 		pFinfo->EndOfFile = pFinfo->AllocationSize;
@@ -2922,6 +2969,7 @@ int
 CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
 		 const unsigned char *searchName,
 		 FILE_ALL_INFO * pFindData,
+		 int legacy /* old style infolevel */,
 		 const struct nls_table *nls_codepage, int remap)
 {
 /* level 263 SMB_QUERY_FILE_ALL_INFO */
@@ -2970,7 +3018,10 @@ QPathInfoRetry:
 	byte_count = params + 1 /* pad */ ;
 	pSMB->TotalParameterCount = cpu_to_le16(params);
 	pSMB->ParameterCount = pSMB->TotalParameterCount;
-	pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO);
+	if(legacy)
+		pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD);
+	else
+		pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO);
 	pSMB->Reserved4 = 0;
 	pSMB->hdr.smb_buf_length += byte_count;
 	pSMB->ByteCount = cpu_to_le16(byte_count);
@@ -2982,13 +3033,24 @@ QPathInfoRetry:
 	} else {		/* decode response */
 		rc = validate_t2((struct smb_t2_rsp *)pSMBr);
 
-		if (rc || (pSMBr->ByteCount < 40)) 
+		if (rc) /* BB add auto retry on EOPNOTSUPP? */
+			rc = -EIO;
+		else if (!legacy && (pSMBr->ByteCount < 40)) 
 			rc = -EIO;	/* bad smb */
+		else if(legacy && (pSMBr->ByteCount < 24))
+			rc = -EIO;  /* 24 or 26 expected but we do not read last field */
 		else if (pFindData){
+			int size;
 			__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
+			if(legacy) /* we do not read the last field, EAsize, fortunately
+					   since it varies by subdialect and on Set vs. Get, is  
+					   two bytes or 4 bytes depending but we don't care here */
+				size = sizeof(FILE_INFO_STANDARD);
+			else
+				size = sizeof(FILE_ALL_INFO);
 			memcpy((char *) pFindData,
 			       (char *) &pSMBr->hdr.Protocol +
-			       data_offset, sizeof (FILE_ALL_INFO));
+			       data_offset, size);
 		} else
 		    rc = -ENOMEM;
 	}
@@ -3613,6 +3675,14 @@ getDFSRetry:
 		strncpy(pSMB->RequestFileName, searchName, name_len);
 	}
 
+	if(ses->server) {
+		if(ses->server->secMode &
+		   (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+			pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
+	}
+
+        pSMB->hdr.Uid = ses->Suid;
+
 	params = 2 /* level */  + name_len /*includes null */ ;
 	pSMB->TotalDataCount = 0;
 	pSMB->DataCount = 0;

fs/cifs/connect.c

@@ -109,7 +109,7 @@ static int ipv6_connect(struct sockaddr_in6 *psin_server,
 	 * wake up waiters on reconnection? - (not needed currently)
 	 */
 
-int
+static int
 cifs_reconnect(struct TCP_Server_Info *server)
 {
 	int rc = 0;
@@ -771,13 +771,18 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
 	separator[0] = ',';
 	separator[1] = 0; 
 
-	memset(vol->source_rfc1001_name,0x20,15);
-	for(i=0;i < strnlen(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(utsname()->nodename[i]);
+	if (Local_System_Name[0] != 0)
+		memcpy(vol->source_rfc1001_name, Local_System_Name,15);
+	else {
+		char *nodename = utsname()->nodename;
+		int n = strnlen(nodename,15);
+		memset(vol->source_rfc1001_name,0x20,15);
+		for(i=0 ; i < n ; i++) {
+			/* does not have to be perfect mapping since 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(nodename[i]);
+		}
 	}
 	vol->source_rfc1001_name[15] = 0;
 	/* null target name indicates to use *SMBSERVR default called name
@@ -3215,7 +3220,9 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 			}
 			/* else do not bother copying these informational fields */
 		}
-		if(smb_buffer_response->WordCount == 3)
+		if((smb_buffer_response->WordCount == 3) ||
+			 (smb_buffer_response->WordCount == 7))
+			/* field is in same location */
 			tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport);
 		else
 			tcon->Flags = 0;
@@ -3312,19 +3319,21 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 		first_time = 1;
 	}
 	if (!rc) {
+		pSesInfo->flags = 0;
 		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",
+		cFYI(1,("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
 			pSesInfo->server->secMode,
 			pSesInfo->server->capabilities,
-			pSesInfo->server->timeZone));
+			pSesInfo->server->timeAdj));
 		if(experimEnabled < 2)
 			rc = CIFS_SessSetup(xid, pSesInfo,
 					    first_time, nls_info);
 		else if (extended_security
-				&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+				&& (pSesInfo->capabilities 
+					& CAP_EXTENDED_SECURITY)
 				&& (pSesInfo->server->secType == NTLMSSP)) {
 			rc = -EOPNOTSUPP;
 		} else if (extended_security
@@ -3338,7 +3347,7 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 			if (!rc) {
 				if(ntlmv2_flag) {
 					char * v2_response;
-					cFYI(1,("Can use more secure NTLM version 2 password hash"));
+					cFYI(1,("more secure NTLM ver2 hash"));
 					if(CalcNTLMv2_partial_mac_key(pSesInfo, 
 						nls_info)) {
 						rc = -ENOMEM;

fs/cifs/inode.c

@@ -337,6 +337,7 @@ int cifs_get_inode_info(struct inode **pinode,
 		pfindData = (FILE_ALL_INFO *)buf;
 		/* could do find first instead but this returns more info */
 		rc = CIFSSMBQPathInfo(xid, pTcon, search_path, pfindData,
+			      0 /* not legacy */,
 			      cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
 				CIFS_MOUNT_MAP_SPECIAL_CHR);
 		/* BB optimize code so we do not make the above call
@@ -384,8 +385,10 @@ int cifs_get_inode_info(struct inode **pinode,
 		/* get new inode */
 		if (*pinode == NULL) {
 			*pinode = new_inode(sb);
-			if (*pinode == NULL)
+			if (*pinode == NULL) {
+				kfree(buf);
 				return -ENOMEM;
+			}
 			/* Is an i_ino of zero legal? Can we use that to check
 			   if the server supports returning inode numbers?  Are
 			   there other sanity checks we can use to ensure that
@@ -431,8 +434,11 @@ int cifs_get_inode_info(struct inode **pinode,
 		(pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;*/
 
 		/* Linux can not store file creation time so ignore it */
-		inode->i_atime =
-		    cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastAccessTime));
+		if(pfindData->LastAccessTime)
+			inode->i_atime = cifs_NTtimeToUnix
+				(le64_to_cpu(pfindData->LastAccessTime));
+		else /* do not need to use current_fs_time - time not stored */
+			inode->i_atime = CURRENT_TIME;
 		inode->i_mtime =
 		    cifs_NTtimeToUnix(le64_to_cpu(pfindData->LastWriteTime));
 		inode->i_ctime =

fs/cifs/link.c

@@ -254,7 +254,11 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
 				tmpbuffer,
 				len - 1,
 				cifs_sb->local_nls);
-	else {
+	else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+		cERROR(1,("SFU style symlinks not implemented yet"));
+		/* add open and read as in fs/cifs/inode.c */
+	
+	} else {
 		rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, GENERIC_READ,
 				OPEN_REPARSE_POINT,&fid, &oplock, NULL, 
 				cifs_sb->local_nls, 

fs/cifs/md5.c

@@ -252,10 +252,11 @@ MD5Transform(__u32 buf[4], __u32 const in[16])
 	buf[3] += d;
 }
 
+#if 0   /* currently unused */
 /***********************************************************************
  the rfc 2104 version of hmac_md5 initialisation.
 ***********************************************************************/
-void
+static void
 hmac_md5_init_rfc2104(unsigned char *key, int key_len,
 		      struct HMACMD5Context *ctx)
 {
@@ -289,6 +290,7 @@ hmac_md5_init_rfc2104(unsigned char *key, int key_len,
 	MD5Init(&ctx->ctx);
 	MD5Update(&ctx->ctx, ctx->k_ipad, 64);
 }
+#endif
 
 /***********************************************************************
  the microsoft version of hmac_md5 initialisation.
@@ -350,7 +352,8 @@ hmac_md5_final(unsigned char *digest, struct HMACMD5Context *ctx)
  single function to calculate an HMAC MD5 digest from data.
  use the microsoft hmacmd5 init method because the key is 16 bytes.
 ************************************************************/
-void
+#if 0 /* currently unused */
+static void
 hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
 	 unsigned char *digest)
 {
@@ -361,3 +364,4 @@ hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
 	}
 	hmac_md5_final(digest, &ctx);
 }
+#endif

fs/cifs/md5.h

@@ -27,12 +27,12 @@ void MD5Final(unsigned char digest[16], struct MD5Context *context);
 
 /* The following definitions come from lib/hmacmd5.c  */
 
-void hmac_md5_init_rfc2104(unsigned char *key, int key_len,
-			struct HMACMD5Context *ctx);
+/* void hmac_md5_init_rfc2104(unsigned char *key, int key_len,
+			struct HMACMD5Context *ctx);*/
 void hmac_md5_init_limK_to_64(const unsigned char *key, int key_len,
 			struct HMACMD5Context *ctx);
 void hmac_md5_update(const unsigned char *text, int text_len,
 			struct HMACMD5Context *ctx);
 void hmac_md5_final(unsigned char *digest, struct HMACMD5Context *ctx);
-void hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
-			unsigned char *digest);
+/* void hmac_md5(unsigned char key[16], unsigned char *data, int data_len,
+			unsigned char *digest);*/

fs/cifs/misc.c

@@ -389,7 +389,7 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
 	return;
 }
 
-int
+static int
 checkSMBhdr(struct smb_hdr *smb, __u16 mid)
 {
 	/* Make sure that this really is an SMB, that it is a response, 
@@ -418,26 +418,42 @@ checkSMBhdr(struct smb_hdr *smb, __u16 mid)
 }
 
 int
-checkSMB(struct smb_hdr *smb, __u16 mid, int length)
+checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length)
 {
 	__u32 len = smb->smb_buf_length;
 	__u32 clc_len;  /* calculated length */
 	cFYI(0, ("checkSMB Length: 0x%x, smb_buf_length: 0x%x", length, len));
-	if (((unsigned int)length < 2 + sizeof (struct smb_hdr)) ||
-	    (len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4)) {
-		if ((unsigned int)length < 2 + sizeof (struct smb_hdr)) {
-			if (((unsigned int)length >= 
-				sizeof (struct smb_hdr) - 1)
+
+	if (length < 2 + sizeof (struct smb_hdr)) {
+		if ((length >= sizeof (struct smb_hdr) - 1)
 			    && (smb->Status.CifsError != 0)) {
-				smb->WordCount = 0;
-				/* some error cases do not return wct and bcc */
+			smb->WordCount = 0;
+			/* some error cases do not return wct and bcc */
+			return 0;
+		} else if ((length == sizeof(struct smb_hdr) + 1) && 
+				(smb->WordCount == 0)) {
+			char * tmp = (char *)smb;
+			/* Need to work around a bug in two servers here */
+			/* First, check if the part of bcc they sent was zero */
+			if (tmp[sizeof(struct smb_hdr)] == 0) {
+				/* some servers return only half of bcc
+				 * on simple responses (wct, bcc both zero)
+				 * in particular have seen this on
+				 * ulogoffX and FindClose. This leaves
+				 * one byte of bcc potentially unitialized
+				 */
+				/* zero rest of bcc */
+				tmp[sizeof(struct smb_hdr)+1] = 0;
 				return 0;
-			} else {
-				cERROR(1, ("Length less than smb header size"));
 			}
+			cERROR(1,("rcvd invalid byte count (bcc)"));
+		} else {
+			cERROR(1, ("Length less than smb header size"));
 		}
-		if (len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4)
-			cERROR(1, ("smb length greater than MaxBufSize, mid=%d",
+		return 1;
+	}
+	if (len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
+		cERROR(1, ("smb length greater than MaxBufSize, mid=%d",
 				   smb->Mid));
 		return 1;
 	}
@@ -446,7 +462,7 @@ checkSMB(struct smb_hdr *smb, __u16 mid, int length)
 		return 1;
 	clc_len = smbCalcSize_LE(smb);
 
-	if(4 + len != (unsigned int)length) {
+	if(4 + len != length) {
 		cERROR(1, ("Length read does not match RFC1001 length %d",len));
 		return 1;
 	}

fs/cifs/netmisc.c

@@ -909,3 +909,61 @@ cifs_UnixTimeToNT(struct timespec t)
 	/* Convert to 100ns intervals and then add the NTFS time offset. */
 	return (u64) t.tv_sec * 10000000 + t.tv_nsec/100 + NTFS_TIME_OFFSET;
 }
+
+static int total_days_of_prev_months[] =
+{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
+
+
+__le64 cnvrtDosCifsTm(__u16 date, __u16 time)
+{
+	return cpu_to_le64(cifs_UnixTimeToNT(cnvrtDosUnixTm(date, time)));
+}
+
+struct timespec cnvrtDosUnixTm(__u16 date, __u16 time)
+{
+	struct timespec ts;
+	int sec, min, days, month, year;
+	SMB_TIME * st = (SMB_TIME *)&time;
+	SMB_DATE * sd = (SMB_DATE *)&date;
+
+	cFYI(1,("date %d time %d",date, time));
+
+	sec = 2 * st->TwoSeconds;
+	min = st->Minutes;
+	if((sec > 59) || (min > 59))
+		cERROR(1,("illegal time min %d sec %d", min, sec));
+	sec += (min * 60);
+	sec += 60 * 60 * st->Hours;
+	if(st->Hours > 24)
+		cERROR(1,("illegal hours %d",st->Hours));
+	days = sd->Day;
+	month = sd->Month;
+	if((days > 31) || (month > 12))
+		cERROR(1,("illegal date, month %d day: %d", month, days));
+	month -= 1;
+	days += total_days_of_prev_months[month];
+	days += 3652; /* account for difference in days between 1980 and 1970 */
+	year = sd->Year;
+	days += year * 365;
+	days += (year/4); /* leap year */
+	/* generalized leap year calculation is more complex, ie no leap year
+	for years/100 except for years/400, but since the maximum number for DOS
+	 year is 2**7, the last year is 1980+127, which means we need only
+	 consider 2 special case years, ie the years 2000 and 2100, and only
+	 adjust for the lack of leap year for the year 2100, as 2000 was a 
+	 leap year (divisable by 400) */
+	if(year >= 120)  /* the year 2100 */
+		days = days - 1;  /* do not count leap year for the year 2100 */
+
+	/* adjust for leap year where we are still before leap day */
+	if(year != 120)
+		days -= ((year & 0x03) == 0) && (month < 2 ? 1 : 0);
+	sec += 24 * 60 * 60 * days; 
+
+	ts.tv_sec = sec;
+
+	/* cFYI(1,("sec after cnvrt dos to unix time %d",sec)); */
+
+	ts.tv_nsec = 0;
+	return ts;
+} 

fs/cifs/readdir.c

@@ -106,6 +106,17 @@ static int construct_dentry(struct qstr *qstring, struct file *file,
 	return rc;
 }
 
+static void AdjustForTZ(struct cifsTconInfo * tcon, struct inode * inode)
+{
+	if((tcon) && (tcon->ses) && (tcon->ses->server)) {
+		inode->i_ctime.tv_sec += tcon->ses->server->timeAdj;
+		inode->i_mtime.tv_sec += tcon->ses->server->timeAdj;
+		inode->i_atime.tv_sec += tcon->ses->server->timeAdj;
+	}
+	return;
+}
+
+
 static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
 		char * buf, int *pobject_type, int isNewInode)
 {
@@ -135,16 +146,23 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type,
 		tmp_inode->i_ctime =
 		      cifs_NTtimeToUnix(le64_to_cpu(pfindData->ChangeTime));
 	} else { /* legacy, OS2 and DOS style */
+/*		struct timespec ts;*/
 		FIND_FILE_STANDARD_INFO * pfindData = 
 			(FIND_FILE_STANDARD_INFO *)buf;
 
+		tmp_inode->i_mtime = cnvrtDosUnixTm(
+				le16_to_cpu(pfindData->LastWriteDate),
+				le16_to_cpu(pfindData->LastWriteTime));
+		tmp_inode->i_atime = cnvrtDosUnixTm(
+				le16_to_cpu(pfindData->LastAccessDate),
+				le16_to_cpu(pfindData->LastAccessTime));
+                tmp_inode->i_ctime = cnvrtDosUnixTm(
+                                le16_to_cpu(pfindData->LastWriteDate),
+                                le16_to_cpu(pfindData->LastWriteTime));
+		AdjustForTZ(cifs_sb->tcon, tmp_inode);
 		attr = le16_to_cpu(pfindData->Attributes);
 		allocation_size = le32_to_cpu(pfindData->AllocationSize);
 		end_of_file = le32_to_cpu(pfindData->DataSize);
-		tmp_inode->i_atime = CURRENT_TIME;
-		/* tmp_inode->i_mtime =  BB FIXME - add dos time handling
-		tmp_inode->i_ctime = 0;   BB FIXME */
-
 	}
 
 	/* Linux can not store file creation time unfortunately so ignore it */
@@ -938,6 +956,7 @@ static int cifs_save_resume_key(const char *current_entry,
 		filename = &pFindData->FileName[0];
 		/* one byte length, no name conversion */
 		len = (unsigned int)pFindData->FileNameLength;
+		cifsFile->srch_inf.resume_key = pFindData->ResumeKey;
 	} else {
 		cFYI(1,("Unknown findfirst level %d",level));
 		return -EINVAL;

fs/cifs/sess.c

@@ -268,6 +268,10 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo
 	ses->serverOS = kzalloc(len + 1, GFP_KERNEL);
 	if(ses->serverOS)
 		strncpy(ses->serverOS, bcc_ptr, len);
+	if(strncmp(ses->serverOS, "OS/2",4) == 0) {
+			cFYI(1,("OS/2 server"));
+			ses->flags |= CIFS_SES_OS2;
+	}
 
 	bcc_ptr += len + 1;
 	bleft -= len + 1;
@@ -290,16 +294,11 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo
         if(len > bleft)
                 return rc;
 
-        if(ses->serverDomain)
-                kfree(ses->serverDomain);
-
-        ses->serverDomain = kzalloc(len + 1, GFP_KERNEL);
-        if(ses->serverOS)
-                strncpy(ses->serverOS, bcc_ptr, len);
-
-        bcc_ptr += len + 1;
-	bleft -= len + 1;
-
+	/* No domain field in LANMAN case. Domain is
+	   returned by old servers in the SMB negprot response */
+	/* BB For newer servers which do not support Unicode,
+	   but thus do return domain here we could add parsing
+	   for it later, but it is not very important */
 	cFYI(1,("ascii: bytes left %d",bleft));
 
 	return rc;
@@ -366,6 +365,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 	str_area = kmalloc(2000, GFP_KERNEL);
 	bcc_ptr = str_area;
 
+	ses->flags &= ~CIFS_SES_LANMAN;
+
 	if(type == LANMAN) {
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 		char lnm_session_key[CIFS_SESS_KEY_SIZE];
@@ -377,7 +378,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 		/* and copy into bcc */
 
 		calc_lanman_hash(ses, lnm_session_key);
-
+		ses->flags |= CIFS_SES_LANMAN; 
 /* #ifdef CONFIG_CIFS_DEBUG2
 		cifs_dump_mem("cryptkey: ",ses->server->cryptKey,
 			CIFS_SESS_KEY_SIZE);

fs/cifs/smbdes.c

@@ -364,20 +364,20 @@ E_P24(unsigned char *p21, unsigned char *c8, unsigned char *p24)
 	smbhash(p24 + 16, c8, p21 + 14, 1);
 }
 
-void
+#if 0 /* currently unsued */
+static void
 D_P16(unsigned char *p14, unsigned char *in, unsigned char *out)
 {
 	smbhash(out, in, p14, 0);
 	smbhash(out + 8, in + 8, p14 + 7, 0);
 }
 
-void
+static void
 E_old_pw_hash(unsigned char *p14, unsigned char *in, unsigned char *out)
 {
 	smbhash(out, in, p14, 1);
 	smbhash(out + 8, in + 8, p14 + 7, 1);
 }
-#if 0
 /* these routines are currently unneeded, but may be
 	needed later */
 void

fs/cifs/smbencrypt.c

@@ -51,11 +51,8 @@
 
 void SMBencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24);
 void E_md4hash(const unsigned char *passwd, unsigned char *p16);
-void nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16]);
 static void SMBOWFencrypt(unsigned char passwd[16], unsigned char *c8,
 		   unsigned char p24[24]);
-void NTLMSSPOWFencrypt(unsigned char passwd[8],
-		       unsigned char *ntlmchalresp, unsigned char p24[24]);
 void SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24);
 
 /*
@@ -144,8 +141,9 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16)
 	memset(wpwd,0,129 * 2);
 }
 
+#if 0 /* currently unused */
 /* Does both the NT and LM owfs of a user's password */
-void
+static void
 nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16])
 {
 	char passwd[514];
@@ -171,6 +169,7 @@ nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16])
 	/* clear out local copy of user's password (just being paranoid). */
 	memset(passwd, '\0', sizeof (passwd));
 }
+#endif
 
 /* Does the NTLMv2 owfs of a user's password */
 #if 0  /* function not needed yet - but will be soon */
@@ -223,7 +222,8 @@ SMBOWFencrypt(unsigned char passwd[16], unsigned char *c8,
 }
 
 /* Does the des encryption from the FIRST 8 BYTES of the NT or LM MD4 hash. */
-void
+#if 0 /* currently unused */
+static void
 NTLMSSPOWFencrypt(unsigned char passwd[8],
 		  unsigned char *ntlmchalresp, unsigned char p24[24])
 {
@@ -235,6 +235,7 @@ NTLMSSPOWFencrypt(unsigned char passwd[8],
 
 	E_P24(p21, ntlmchalresp, p24);
 }
+#endif
 
 /* Does the NT MD4 hash then des encryption. */