Signed-off-by: Stefan Metzmacher <metze@xxxxxxxxx>
---
fs/cifs/link.c | 34 ++++++++++++++++++++++++++++++----
1 files changed, 30 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 473ca80..2358a5f 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -29,6 +29,24 @@
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
+static int
+CIFSCreateMFSymLink(const int xid, struct cifsTconInfo *tcon,
+ const char *fromName, const char *toName,
+ const struct nls_table *nls_codepage)
+{
+ int rc = -EOPNOTSUPP;
+ return rc;
+}
+
+static int
+CIFSQueryMFSymLink(const int xid, struct cifsTconInfo *tcon,
+ const unsigned char *searchName, char **symlinkinfo,
+ const struct nls_table *nls_codepage)
+{
+ int rc = -EOPNOTSUPP;
+ return rc;
+}
+
int
cifs_hardlink(struct dentry *old_file, struct inode *inode,
struct dentry *direntry)
@@ -130,7 +148,8 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
* but there doesn't seem to be any harm in allowing the client to
* read them.
*/
- if (!(tcon->ses->capabilities & CAP_UNIX)) {
+ if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
+ && !(tcon->ses->capabilities & CAP_UNIX)) {
rc = -EACCES;
goto out;
}
@@ -141,8 +160,12 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
cFYI(1, "Full path: %s inode = 0x%p", full_path, inode);
- rc = CIFSSMBUnixQuerySymLink(xid, tcon, full_path, &target_path,
- cifs_sb->local_nls);
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
+ rc = CIFSQueryMFSymLink(xid, tcon, full_path, &target_path,
+ cifs_sb->local_nls);
+ else
+ rc = CIFSSMBUnixQuerySymLink(xid, tcon, full_path, &target_path,
+ cifs_sb->local_nls);
kfree(full_path);
out:
if (rc != 0) {
@@ -182,7 +205,10 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
cFYI(1, "symname is %s", symname);
/* BB what if DFS and this volume is on different share? BB */
- if (pTcon->unix_ext)
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
+ rc = CIFSCreateMFSymLink(xid, pTcon, full_path, symname,
+ cifs_sb->local_nls);
+ else if (pTcon->unix_ext)
rc = CIFSUnixCreateSymLink(xid, pTcon, full_path, symname,
cifs_sb->local_nls);
/* else
--
1.7.0.4
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