Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

[pandora-kernel.git] / fs / cifs / dir.c

diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 6ed7759..fb69c1f 100644 (file)
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -49,18 +49,25 @@ build_path_from_dentry(struct dentry *direntry)
        struct dentry *temp;
        int namelen;
        int pplen;
+       int dfsplen;
        char *full_path;
        char dirsep;
+       struct cifs_sb_info *cifs_sb;
 
        if (direntry == NULL)
                return NULL;  /* not much we can do if dentry is freed and
                we need to reopen the file after it was closed implicitly
                when the server crashed */
 
-       dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
-       pplen = CIFS_SB(direntry->d_sb)->prepathlen;
+       cifs_sb = CIFS_SB(direntry->d_sb);
+       dirsep = CIFS_DIR_SEP(cifs_sb);
+       pplen = cifs_sb->prepathlen;
+       if (cifs_sb->tcon && (cifs_sb->tcon->Flags & SMB_SHARE_IS_IN_DFS))
+               dfsplen = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE + 1);
+       else
+               dfsplen = 0;
 cifs_bp_rename_retry:
-       namelen = pplen;
+       namelen = pplen + dfsplen;
        for (temp = direntry; !IS_ROOT(temp);) {
                namelen += (1 + temp->d_name.len);
                temp = temp->d_parent;
@@ -91,7 +98,7 @@ cifs_bp_rename_retry:
                        return NULL;
                }
        }
-       if (namelen != pplen) {
+       if (namelen != pplen + dfsplen) {
                cERROR(1,
                       ("did not end path lookup where expected namelen is %d",
                        namelen));
@@ -107,7 +114,18 @@ cifs_bp_rename_retry:
           since the '\' is a valid posix character so we can not switch
           those safely to '/' if any are found in the middle of the prepath */
        /* BB test paths to Windows with '/' in the midst of prepath */
-       strncpy(full_path, CIFS_SB(direntry->d_sb)->prepath, pplen);
+
+       if (dfsplen) {
+               strncpy(full_path, cifs_sb->tcon->treeName, dfsplen);
+               if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
+                       int i;
+                       for (i = 0; i < dfsplen; i++) {
+                               if (full_path[i] == '\\')
+                                       full_path[i] = '/';
+                       }
+               }
+       }
+       strncpy(full_path + dfsplen, CIFS_SB(direntry->d_sb)->prepath, pplen);
        return full_path;
 }
 
@@ -119,6 +137,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 {
        int rc = -ENOENT;
        int xid;
+       int create_options = CREATE_NOT_DIR;
        int oplock = 0;
        int desiredAccess = GENERIC_READ | GENERIC_WRITE;
        __u16 fileHandle;
@@ -176,9 +195,19 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
                FreeXid(xid);
                return -ENOMEM;
        }
+
+       mode &= ~current->fs->umask;
+
+       /*
+        * if we're not using unix extensions, see if we need to set
+        * ATTR_READONLY on the create call
+        */
+       if (!pTcon->unix_ext && (mode & S_IWUGO) == 0)
+               create_options |= CREATE_OPTION_READONLY;
+
        if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
                rc = CIFSSMBOpen(xid, pTcon, full_path, disposition,
-                        desiredAccess, CREATE_NOT_DIR,
+                        desiredAccess, create_options,
                         &fileHandle, &oplock, buf, cifs_sb->local_nls,
                         cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
        else
@@ -187,7 +216,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
        if (rc == -EIO) {
                /* old server, retry the open legacy style */
                rc = SMBLegacyOpen(xid, pTcon, full_path, disposition,
-                       desiredAccess, CREATE_NOT_DIR,
+                       desiredAccess, create_options,
                        &fileHandle, &oplock, buf, cifs_sb->local_nls,
                        cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
        }
@@ -197,7 +226,6 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
                /* If Open reported that we actually created a file
                then we now have to set the mode if possible */
                if ((pTcon->unix_ext) && (oplock & CIFS_CREATE_ACTION)) {
-                       mode &= ~current->fs->umask;
                        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
                                CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
                                        (__u64)current->fsuid,
@@ -232,7 +260,9 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
                                                 buf, inode->i_sb, xid,
                                                 &fileHandle);
                        if (newinode) {
-                               newinode->i_mode = mode;
+                               if (cifs_sb->mnt_cifs_flags &
+                                   CIFS_MOUNT_DYNPERM)
+                                       newinode->i_mode = mode;
                                if ((oplock & CIFS_CREATE_ACTION) &&
                                    (cifs_sb->mnt_cifs_flags &
                                     CIFS_MOUNT_SET_UID)) {
@@ -580,7 +610,7 @@ static int cifs_ci_compare(struct dentry *dentry, struct qstr *a,
                 * case take precedence.  If a is not a negative dentry, this
                 * should have no side effects
                 */
-               memcpy(a->name, b->name, a->len);
+               memcpy((void *)a->name, b->name, a->len);
                return 0;
        }
        return 1;