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path: root/fs/cifs/dir.c
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Diffstat (limited to 'fs/cifs/dir.c')
-rw-r--r--fs/cifs/dir.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index e4e0078a052..f0b5b5f3dd2 100644
--- 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;
}
@@ -590,7 +608,7 @@ 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;