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authorPavel Shilovsky <pshilovsky@samba.org>2012-09-18 16:20:31 -0700
committerSteve French <smfrench@gmail.com>2012-09-24 21:46:29 -0500
commit568798cc6211553e2494a6876fa19d064c822e79 (patch)
treefa73b97cac75ae54a08a5e0dfc26c2120243a412 /fs/cifs/smb2pdu.c
parentd6e906f1b571d15ff5778a049802f6ef6f70159a (diff)
downloadblackbird-op-linux-568798cc6211553e2494a6876fa19d064c822e79.tar.gz
blackbird-op-linux-568798cc6211553e2494a6876fa19d064c822e79.zip
CIFS: Add SMB2 support for hardlink operation
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2pdu.c')
-rw-r--r--fs/cifs/smb2pdu.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 1dc11ce7934e..a684c4ab42d6 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1709,3 +1709,34 @@ SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
kfree(data);
return rc;
}
+
+int
+SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid, __le16 *target_file)
+{
+ struct smb2_file_link_info info;
+ void **data;
+ unsigned int size[2];
+ int rc;
+ int len = (2 * UniStrnlen((wchar_t *)target_file, PATH_MAX));
+
+ data = kmalloc(sizeof(void *) * 2, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ info.ReplaceIfExists = 0; /* 1 = replace existing link with new */
+ /* 0 = fail if link already exists */
+ info.RootDirectory = 0; /* MBZ for network ops (why does spec say?) */
+ info.FileNameLength = cpu_to_le32(len);
+
+ data[0] = &info;
+ size[0] = sizeof(struct smb2_file_link_info);
+
+ data[1] = target_file;
+ size[1] = len + 2 /* null */;
+
+ rc = send_set_info(xid, tcon, persistent_fid, volatile_fid,
+ FILE_LINK_INFORMATION, 2, data, size);
+ kfree(data);
+ return rc;
+}
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