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[linux-2.6.git] / fs / cifs / xattr.c
index ebc69c3..dd6a2c0 100644 (file)
 #include "cifsproto.h"
 #include "cifs_debug.h"
 
-#define MAX_EA_VALUE_SIZE 65535
-#define CIFS_XATTR_DOS_ATTRIB "user.DOSATTRIB"
-#define CIFS_XATTR_USER_PREFIX "user."
-#define CIFS_XATTR_SYSTEM_PREFIX "system."
-#define CIFS_XATTR_OS2_PREFIX "OS2." /* BB should check for this someday */
-/* also note could add check for security prefix XATTR_SECURITY_PREFIX */ 
-
-
-int cifs_removexattr(struct dentry * direntry, const char * ea_name)
+int cifs_removexattr(struct dentry * direntry, const char * name)
 {
        int rc = -EOPNOTSUPP;
-#ifdef CONFIG_CIFS_XATTR
-       int xid;
-       struct cifs_sb_info *cifs_sb;
-       struct cifsTconInfo *pTcon;
-       struct super_block * sb;
-       char * full_path;
-                                                                                     
-       if(direntry == NULL)
-               return -EIO;
-       if(direntry->d_inode == NULL)
-               return -EIO;
-       sb = direntry->d_inode->i_sb;
-       if(sb == NULL)
-               return -EIO;
-       xid = GetXid();
-                                                                                     
-       cifs_sb = CIFS_SB(sb);
-       pTcon = cifs_sb->tcon;
-                                                                                     
-       down(&sb->s_vfs_rename_sem);
-       full_path = build_path_from_dentry(direntry);
-       up(&sb->s_vfs_rename_sem);
-       if(full_path == NULL) {
-               FreeXid(xid);
-               return -ENOMEM;
-       }
-       if(ea_name == NULL) {
-               cFYI(1,("Null xattr names not supported"));
-       } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5)) {
-               cFYI(1,("illegal xattr namespace %s (only user namespace supported)",ea_name));
-               /* BB what if no namespace prefix? */
-               /* Should we just pass them to server, except for
-               system and perhaps security prefixes? */
-       } else {
-               ea_name+=5; /* skip past user. prefix */
-               rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,NULL,
-                       (__u16)0, cifs_sb->local_nls);
-       }
-       if (full_path)
-               kfree(full_path);
-       FreeXid(xid);
-#endif
        return rc;
 }
 
-int cifs_setxattr(struct dentry * direntry, const char * ea_name,
-        const void * ea_value, size_t value_size, int flags)
+int cifs_setxattr(struct dentry * direntry, const char * name,
+        const void * value, size_t size, int flags)
 {
        int rc = -EOPNOTSUPP;
-#ifdef CONFIG_CIFS_XATTR
-       int xid;
-       struct cifs_sb_info *cifs_sb;
-       struct cifsTconInfo *pTcon;
-       struct super_block * sb;
-       char * full_path;
-
-       if(direntry == NULL)
-               return -EIO;
-       if(direntry->d_inode == NULL)
-               return -EIO;
-       sb = direntry->d_inode->i_sb;
-       if(sb == NULL)
-               return -EIO;
-       xid = GetXid();
-
-       cifs_sb = CIFS_SB(sb);
-       pTcon = cifs_sb->tcon;
-
-       down(&sb->s_vfs_rename_sem);
-       full_path = build_path_from_dentry(direntry);
-       up(&sb->s_vfs_rename_sem);
-       if(full_path == NULL) {
-               FreeXid(xid);
-               return -ENOMEM;
-       }
-       /* return dos attributes as pseudo xattr */
-       /* return alt name if available as pseudo attr */
-
-       /* if proc/fs/cifs/streamstoxattr is set then
-               search server for EAs or streams to 
-               returns as xattrs */
-       if(value_size > MAX_EA_VALUE_SIZE) {
-               cFYI(1,("size of EA value too large"));
-               if(full_path)
-                       kfree(full_path);
-               FreeXid(xid);
-               return -EOPNOTSUPP;
-       }
-
-       if(ea_name == NULL) {
-               cFYI(1,("Null xattr names not supported"));
-       } else if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5)) {
-               cFYI(1,("illegal xattr namespace %s (only user namespace supported)",ea_name));
-                 /* BB what if no namespace prefix? */
-                 /* Should we just pass them to server, except for 
-                 system and perhaps security prefixes? */
-       } else {
-               ea_name+=5; /* skip past user. prefix */
-               rc = CIFSSMBSetEA(xid,pTcon,full_path,ea_name,ea_value,
-                       (__u16)value_size, cifs_sb->local_nls);
-       }
-       if (full_path)
-               kfree(full_path);
-       FreeXid(xid);
-#endif
        return rc;
 }
 
-ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
-         void * ea_value, size_t buf_size)
+ssize_t cifs_getxattr(struct dentry * direntry, const char * name,
+         void * value, size_t size)
 {
        ssize_t rc = -EOPNOTSUPP;
-#ifdef CONFIG_CIFS_XATTR
-       int xid;
-       struct cifs_sb_info *cifs_sb;
-       struct cifsTconInfo *pTcon;
-       struct super_block * sb;
-       char * full_path;
-
-       if(direntry == NULL)
-               return -EIO;
-       if(direntry->d_inode == NULL)
-               return -EIO;
-       sb = direntry->d_inode->i_sb;
-       if(sb == NULL)
-               return -EIO;
-       xid = GetXid();
-
-       cifs_sb = CIFS_SB(sb);
-       pTcon = cifs_sb->tcon;
-
-       down(&sb->s_vfs_rename_sem);
-       full_path = build_path_from_dentry(direntry);
-       up(&sb->s_vfs_rename_sem);
-       if(full_path == NULL) {
-               FreeXid(xid);
-               return -ENOMEM;
-       }
-       /* return dos attributes as pseudo xattr */
-       /* return alt name if available as pseudo attr */
-       if(strncmp(ea_name,CIFS_XATTR_USER_PREFIX,5)) {
-               cFYI(1,("illegal xattr namespace %s (only user namespace supported)",ea_name));
-               /* BB what if no namespace prefix? */
-               /* Should we just pass them to server, except for system? */
-       } else {
-       /* We could add a check here
-           if proc/fs/cifs/streamstoxattr is set then
-               search server for EAs or streams to 
-               returns as xattrs */
-               ea_name+=5; /* skip past user. */
-               rc = CIFSSMBQueryEA(xid,pTcon,full_path,ea_name,ea_value,
-                               buf_size, cifs_sb->local_nls);
-       }
-       if (full_path)
-               kfree(full_path);
-       FreeXid(xid);
-#endif
        return rc;
 }
 
-ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
+ssize_t cifs_listxattr(struct dentry * direntry, char * ea_data, size_t ea_size)
 {
        ssize_t rc = -EOPNOTSUPP;
 #ifdef CONFIG_CIFS_XATTR
@@ -206,7 +55,6 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
        struct cifsTconInfo *pTcon;
        struct super_block * sb;
        char * full_path;
-
        if(direntry == NULL)
                return -EIO;
        if(direntry->d_inode == NULL)
@@ -226,17 +74,13 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
                FreeXid(xid);
                return -ENOMEM;
        }
-       /* return dos attributes as pseudo xattr */
+       /* return dosattributes as pseudo xattr */
        /* return alt name if available as pseudo attr */
 
        /* if proc/fs/cifs/streamstoxattr is set then
                search server for EAs or streams to 
                returns as xattrs */
-       rc = CIFSSMBQAllEAs(xid,pTcon,full_path,data,buf_size,
-                               cifs_sb->local_nls);
-
-       if (full_path)
-               kfree(full_path);
+       rc = CIFSSMBQAllEAs(xid,pTcon,full_path,ea_data,ea_size,cifs_sb->local_nls);
        FreeXid(xid);
 #endif
        return rc;