Merge bk://linux.bkbits.net/linux-2.5

into hostme.bitkeeper.com:/repos/c/cifs/linux-2.5cifs

fs/cifs/cifs_debug.c

@@ -197,6 +197,8 @@ static read_proc_t ntlmv2_enabled_read;
 static write_proc_t ntlmv2_enabled_write;
 static read_proc_t packet_signing_enabled_read;
 static write_proc_t packet_signing_enabled_write;
+static read_proc_t quotaEnabled_read;
+static write_proc_t quotaEnabled_write;
 
 void
 cifs_proc_init(void)
@@ -233,6 +235,11 @@ cifs_proc_init(void)
 	if (pde)
 		pde->write_proc = oplockEnabled_write;
 
+        pde = create_proc_read_entry("QuotaEnabled", 0, proc_fs_cifs,
+                                     quotaEnabled_read, 0);
+        if (pde)
+                pde->write_proc = quotaEnabled_write;
+
 	pde =
 	    create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs,
 				   multiuser_mount_read, 0);
@@ -361,6 +368,47 @@ oplockEnabled_write(struct file *file, const char *buffer,
 	return count;
 }
 
+static int
+quotaEnabled_read(char *page, char **start, off_t off,
+                   int count, int *eof, void *data)
+{
+        int len;
+
+        len = sprintf(page, "%d\n", quotaEnabled);
+/* could also check if quotas are enabled in kernel
+	as a whole first */
+        len -= off;
+        *start = page + off;
+
+        if (len > count)
+                len = count;
+        else
+                *eof = 1;
+
+        if (len < 0)
+                len = 0;
+
+        return len;
+}
+static int
+quotaEnabled_write(struct file *file, const char *buffer,
+                    unsigned long count, void *data)
+{
+        char c;
+        int rc;
+
+        rc = get_user(c, buffer);
+        if (rc)
+                return rc;
+        if (c == '0' || c == 'n' || c == 'N')
+                quotaEnabled = 0;
+        else if (c == '1' || c == 'y' || c == 'Y')
+                quotaEnabled = 1;
+
+        return count;
+}
+
+
 static int
 lookupFlag_read(char *page, char **start, off_t off,
 		   int count, int *eof, void *data)

fs/cifs/cifsfs.c

@@ -42,12 +42,17 @@
 #include <linux/mm.h>
 #define CIFS_MAGIC_NUMBER 0xFF534D42	/* the first four bytes of all SMB PDUs */
 
+#ifdef CIFS_QUOTA
+static struct quotactl_ops cifs_quotactl_ops;
+#endif
+
 extern struct file_system_type cifs_fs_type;
 
 int cifsFYI = 0;
 int cifsERROR = 1;
 int traceSMB = 0;
 unsigned int oplockEnabled = 1;
+unsigned int quotaEnabled = 0;
 unsigned int lookupCacheEnabled = 1;
 unsigned int multiuser_mount = 0;
 unsigned int extended_security = 0;
@@ -92,7 +97,9 @@ cifs_read_super(struct super_block *sb, void *data,
 	sb->s_op = &cifs_super_ops;
 /*	if(cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512)
 	    sb->s_blocksize = cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */
-
+#ifdef CIFS_QUOTA
+	sb->s_qcop = &cifs_quotactl_ops;
+#endif
 	sb->s_blocksize = CIFS_MAX_MSGSIZE;
 	sb->s_blocksize_bits = 14;	/* default 2**14 = CIFS_MAX_MSGSIZE */
 	inode = iget(sb, ROOT_I);
@@ -247,6 +254,110 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
 	return 0;
 }
 
+#ifdef CIFS_QUOTA
+int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid,
+		struct fs_disk_quota * pdquota)
+{
+	int xid;
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+	
+	if(cifs_sb)
+		pTcon = cifs_sb->tcon;
+	else
+		return -EIO;
+
+
+	xid = GetXid();
+	if(pTcon) {
+		cFYI(1,("set type: 0x%x id: %d",quota_type,qid));		
+	} else {
+		return -EIO;
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid,
+                struct fs_disk_quota * pdquota)
+{
+	int xid;
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+
+	if(cifs_sb)
+		pTcon = cifs_sb->tcon;
+	else
+		return -EIO;
+
+	xid = GetXid();
+	if(pTcon) {
+                cFYI(1,("set type: 0x%x id: %d",quota_type,qid));
+	} else {
+		rc = -EIO;
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation)
+{
+	int xid; 
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+
+	if(cifs_sb)
+		pTcon = cifs_sb->tcon;
+	else
+		return -EIO;
+
+	xid = GetXid();
+	if(pTcon) {
+                cFYI(1,("flags: 0x%x operation: 0x%x",flags,operation));
+	} else {
+		rc = -EIO;
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+int cifs_xstate_get(struct super_block * sb, struct fs_quota_stat *qstats)
+{
+	int xid;
+	int rc = 0;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+	struct cifsTconInfo *pTcon;
+
+	if(cifs_sb) {
+		pTcon = cifs_sb->tcon;
+	} else {
+		return -EIO;
+	}
+	xid = GetXid();
+	if(pTcon) {
+		cFYI(1,("pqstats %p",qstats));		
+	} else {
+		rc = -EIO;
+	}
+
+	FreeXid(xid);
+	return rc;
+}
+
+static struct quotactl_ops cifs_quotactl_ops = {
+	.set_xquota	= cifs_xquota_set,
+	.get_xquota	= cifs_xquota_set,
+	.set_xstate	= cifs_xstate_set,
+	.get_xstate	= cifs_xstate_get,
+};
+#endif
+
 struct super_operations cifs_super_ops = {
 	.read_inode = cifs_read_inode,
 	.put_super = cifs_put_super,

fs/cifs/cifsglob.h

@@ -347,6 +347,7 @@ GLOBAL_EXTERN unsigned int multiuser_mount;	/* if enabled allows new sessions
 				have the uid/password or Kerberos credential 
 				or equivalent for current user */
 GLOBAL_EXTERN unsigned int oplockEnabled;
+GLOBAL_EXTERN unsigned int quotaEnabled;
 GLOBAL_EXTERN unsigned int lookupCacheEnabled;
 GLOBAL_EXTERN unsigned int extended_security;	/* if on, session setup sent 
 				with more secure ntlmssp2 challenge/resp */

fs/cifs/cifspdu.h

@@ -68,6 +68,8 @@
 #define NT_TRANSACT_NOTIFY_CHANGE     0x04
 #define NT_TRANSACT_RENAME            0x05
 #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
+#define NT_TRANSACT_GET_USER_QUOTA    0x07
+#define NT_TRANSACT_SET_USER_QUOTA    0x08
 
 #define MAX_CIFS_HDR_SIZE 256	/* chained NTCreateXReadX will probably be biggest */
 
@@ -878,6 +880,21 @@ struct reparse_data {
 	char	LinkNamesBuf[1];
 };
 
+struct cifs_quota_data {
+	__u32	rsrvd1;  /* 0 */
+	__u32	sid_size;
+	__u64	rsrvd2;  /* 0 */
+	__u64	space_used;
+	__u64	soft_limit;
+	__u64	hard_limit;
+	char	sid[1];  /* variable size? */
+};
+
+/* quota sub commands */
+#define QUOTA_LIST_CONTINUE	    0
+#define QUOTA_LIST_START	0x100
+#define QUOTA_FOR_SID		0x101
+
 typedef union smb_com_transaction2 {
 	struct {
 		struct smb_hdr hdr;	/* wct = 14+ */
@@ -941,6 +958,7 @@ typedef union smb_com_transaction2 {
 #define SMB_SET_FILE_UNIX_LINK          0x201
 #define SMB_SET_FILE_UNIX_HLINK         0x203
 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
+#define SMB_SET_FILE_RENAME_INFORMATION 0x3f2
 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
 
@@ -1036,6 +1054,13 @@ typedef struct smb_com_transaction2_spi_rsp {
 	__u16 Reserved2;	/* parameter word reserved - present for infolevels > 100 */
 } TRANSACTION2_SPI_RSP;
 
+struct set_file_rename {
+        __u32 overwrite;   /* 1 = overwrite dest */
+        __u32 root_fid;   /* zero */
+	__u32 target_name_len;
+        char  target_name[0];  /* Must be unicode */
+};
+
 struct smb_com_transaction2_sfi_req {
 	struct smb_hdr hdr;	/* wct = 15 */
 	__u16 TotalParameterCount;

fs/cifs/cifsproto.h

@@ -170,6 +170,8 @@ extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon,
 extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
 			const char *fromName, const char *toName,
 			const struct nls_table *nls_codepage);
+extern int CIFSSMBDummyRenameOpenFile(const int xid,struct cifsTconInfo *pTcon,
+			int netfid, const struct nls_table *nls_codepage);
 extern int CIFSCreateHardLink(const int xid,
 			struct cifsTconInfo *tcon,
 			const char *fromName, const char *toName,

fs/cifs/cifssmb.c

@@ -762,6 +762,72 @@ CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
 	return rc;
 }
 
+int CIFSSMBDummyRenameOpenFile(const int xid,struct cifsTconInfo *pTcon, 
+		int netfid, const struct nls_table * nls_codepage) 
+{
+        struct smb_com_transaction2_sfi_req *pSMB  = NULL;
+        struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
+	struct set_file_rename * rename_info;
+        char *data_offset;
+        int rc = 0;
+        int bytes_returned = 0;
+	int len_of_str;
+
+        cFYI(1, ("Rename to Dummy Random File Name"));
+
+        rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB,
+                      (void **) &pSMBr);
+        if (rc)
+                return rc;
+
+        pSMB->ParameterCount = 6;
+        pSMB->MaxSetupCount = 0;
+        pSMB->Reserved = 0;
+        pSMB->Flags = 0;
+        pSMB->Timeout = 0;
+        pSMB->Reserved2 = 0;
+        pSMB->ParameterOffset = offsetof(struct smb_com_transaction2_sfi_req,
+                                     Fid) - 4;
+        pSMB->DataOffset = pSMB->ParameterOffset + pSMB->ParameterCount;
+
+        data_offset = (char *) (&pSMB->hdr.Protocol) + pSMB->DataOffset;
+	rename_info = (struct set_file_rename *) data_offset;
+        pSMB->MaxParameterCount = cpu_to_le16(2);
+        pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB PDU from sess */
+        pSMB->SetupCount = 1;
+        pSMB->Reserved3 = 0;
+        pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
+        pSMB->ByteCount = 3 /* pad */  + pSMB->ParameterCount;
+        pSMB->ParameterCount = cpu_to_le16(pSMB->ParameterCount);
+        pSMB->TotalParameterCount = pSMB->ParameterCount;
+        pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset);
+        pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset);
+	/* construct random name ".cifs_tmp<inodenum><mid>" */
+	rename_info->overwrite = cpu_to_le32(1);
+	rename_info->root_fid  = 0;
+        len_of_str = cifs_strtoUCS((wchar_t *) rename_info->target_name, ".cifs", 12, nls_codepage);
+	pSMB->DataCount = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str);
+        pSMB->ByteCount += pSMB->DataCount;
+        pSMB->DataCount = cpu_to_le16(pSMB->DataCount);
+        pSMB->Fid = netfid;
+	/* should we check the passthrough bit ? */
+	pSMB->InformationLevel =
+		cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION);
+        pSMB->Reserved4 = 0;
+        pSMB->hdr.smb_buf_length += pSMB->ByteCount;
+        pSMB->ByteCount = cpu_to_le16(pSMB->ByteCount);
+        rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB,
+                         (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+        if (rc) {
+                cFYI(1,("Send error in DummyRename = %d", rc));
+        }
+
+        if (pSMB)
+                buf_release(pSMB);
+        return rc;
+}
+
+
 int
 CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon,
 		      const char *fromName, const char *toName,
@@ -1979,7 +2045,7 @@ CIFSSMBQFSDeviceInfo(int xid, struct cifsTconInfo *tcon,
 	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
 			 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
 	if (rc) {
-		cERROR(1, ("Send error in QFSDeviceInfo = %d", rc));
+		cFYI(1, ("Send error in QFSDeviceInfo = %d", rc));
 	} else {		/* decode response */
 		pSMBr->DataOffset = le16_to_cpu(pSMBr->DataOffset);
 		if ((pSMBr->ByteCount < sizeof (FILE_SYSTEM_DEVICE_INFO))
@@ -2202,10 +2268,10 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
 	pSMB->TotalDataCount = pSMB->DataCount;
 	pSMB->TotalParameterCount = pSMB->ParameterCount;
 	pSMB->ParameterOffset = cpu_to_le16(pSMB->ParameterOffset);
-	pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset);
 	parm_data =
 		(struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) +
 			pSMB->DataOffset);
+	pSMB->DataOffset = cpu_to_le16(pSMB->DataOffset); /* now safe to change to le */
 	parm_data->FileSize = size;
 	pSMB->Fid = fid;
 	if(SetAllocation) {

fs/cifs/file.c

@@ -1114,9 +1114,6 @@ construct_dentry(struct qstr *qstring, struct file *file,
 	}
 
 	tmp_dentry->d_time = jiffies;
-	(*ptmp_inode)->i_blksize =
-	    (pTcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & 0xFFFFFE00;
-	cFYI(1, ("i_blksize = %ld", (*ptmp_inode)->i_blksize));
 	*pnew_dentry = tmp_dentry;
 }
 

fs/cifs/inode.c

@@ -353,8 +353,9 @@ cifs_unlink(struct inode *inode, struct dentry *direntry)
 				CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE,
 				&netfid, &oplock, NULL, cifs_sb->local_nls);
 		if(rc==0) {
+			CIFSSMBDummyRenameOpenFile(xid,pTcon,netfid,
+				cifs_sb->local_nls);
 			CIFSSMBClose(xid, pTcon, netfid);
-			/* BB In the future chain close with the NTCreateX to narrow window */
 			direntry->d_inode->i_nlink--;
 		}
 	} else if (rc == -EACCES) {
@@ -370,8 +371,22 @@ cifs_unlink(struct inode *inode, struct dentry *direntry)
 		}
 		if(rc==0) {
 			rc = CIFSSMBDelFile(xid, pTcon, full_path, cifs_sb->local_nls);
-			if (!rc)
+			if (!rc) {
 				direntry->d_inode->i_nlink--;
+			} else if (rc == -ETXTBSY) {
+				int oplock = FALSE;
+				__u16 netfid;
+
+				rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, DELETE,
+                                	CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE,
+	                                &netfid, &oplock, NULL, cifs_sb->local_nls);
+				if(rc==0) {
+					CIFSSMBDummyRenameOpenFile(xid,pTcon,netfid,cifs_sb->local_nls);
+					CIFSSMBClose(xid, pTcon, netfid);
+		                        direntry->d_inode->i_nlink--;
+				}
+			/* BB if rc = -ETXTBUSY goto the rename logic BB */
+			}
 		}
 	}
 	cifsInode = CIFS_I(direntry->d_inode);