Signed-off-by: Stefan Metzmacher <metze@xxxxxxxxx>
---
fs/cifs/link.c | 39 +++++++++++++++++++++++++++++++++++----
1 files changed, 35 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index b281d26..93d2dfd 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -135,10 +135,39 @@ CIFSFormatMFSymlink(u8 *buf, unsigned int buf_len, const char *link_str)
static int
CIFSCreateMFSymLink(const int xid, struct cifsTconInfo *tcon,
const char *fromName, const char *toName,
- const struct nls_table *nls_codepage)
+ const struct nls_table *nls_codepage, int remap)
{
- int rc = -EOPNOTSUPP;
- return rc;
+ int rc;
+ int oplock = 0;
+ __u16 netfid = 0;
+ u8 buf[CIFS_MF_SYMLINK_FILE_SIZE];
+ unsigned int bytes_written = 0;
+
+ rc = CIFSFormatMFSymlink(buf, sizeof(buf), toName);
+ if (rc != 0) {
+ return rc;
+ }
+
+ rc = CIFSSMBOpen(xid, tcon, fromName, FILE_CREATE, GENERIC_WRITE,
+ CREATE_NOT_DIR, &netfid, &oplock, NULL,
+ nls_codepage, remap);
+ if (rc != 0) {
+ return rc;
+ }
+
+ rc = CIFSSMBWrite(xid, tcon, netfid,
+ sizeof(buf) /* length */,
+ 0 /* offset */,
+ &bytes_written, buf, NULL, 0);
+ CIFSSMBClose(xid, tcon, netfid);
+ if (rc != 0) {
+ return rc;
+ }
+
+ if (bytes_written != sizeof(buf))
+ return -EIO;
+
+ return 0;
}
static int
@@ -416,7 +445,9 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
/* BB what if DFS and this volume is on different share? BB */
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
rc = CIFSCreateMFSymLink(xid, pTcon, full_path, symname,
- cifs_sb->local_nls);
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
else if (pTcon->unix_ext)
rc = CIFSUnixCreateSymLink(xid, pTcon, full_path, symname,
cifs_sb->local_nls);
--
1.7.0.4
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