cifs: implement CIFSCreateMFSymLink()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 0473a86..1b2a8c9 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -133,6 +133,51 @@
return 0;
}
+static int
+CIFSCreateMFSymLink(const int xid, struct cifsTconInfo *tcon,
+ const char *fromName, const char *toName,
+ const struct nls_table *nls_codepage, int remap)
+{
+ int rc;
+ int oplock = 0;
+ __u16 netfid = 0;
+ u8 *buf;
+ unsigned int bytes_written = 0;
+
+ buf = kmalloc(CIFS_MF_SYMLINK_FILE_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ rc = CIFSFormatMFSymlink(buf, CIFS_MF_SYMLINK_FILE_SIZE, toName);
+ if (rc != 0) {
+ kfree(buf);
+ return rc;
+ }
+
+ rc = CIFSSMBOpen(xid, tcon, fromName, FILE_CREATE, GENERIC_WRITE,
+ CREATE_NOT_DIR, &netfid, &oplock, NULL,
+ nls_codepage, remap);
+ if (rc != 0) {
+ kfree(buf);
+ return rc;
+ }
+
+ rc = CIFSSMBWrite(xid, tcon, netfid,
+ CIFS_MF_SYMLINK_FILE_SIZE /* length */,
+ 0 /* offset */,
+ &bytes_written, buf, NULL, 0);
+ CIFSSMBClose(xid, tcon, netfid);
+ kfree(buf);
+ if (rc != 0)
+ return rc;
+
+ if (bytes_written != CIFS_MF_SYMLINK_FILE_SIZE)
+ return -EIO;
+
+ return 0;
+}
+
+static int
CIFSQueryMFSymLink(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName, char **symlinkinfo,
const struct nls_table *nls_codepage, int remap)