[PATCH 3.18 030/124] Reset TreeId to zero on SMB2 TREE_CONNECT

[Greg Kroah-Hartman]

3.18-stable review patch.  If anyone has any objections, please let me know.

--

From: Jan-Marek Glogowski 

commit 806a28efe9b78ffae5e2757e1ee924b8e50c08ab upstream.

Currently the cifs module breaks the CIFS specs on reconnect as
described in http://msdn.microsoft.com/en-us/library/cc246529.aspx:

"TreeId (4 bytes): Uniquely identifies the tree connect for the
command. This MUST be 0 for the SMB2 TREE_CONNECT Request."

Signed-off-by: Jan-Marek Glogowski 
Reviewed-by: Aurelien Aptel 
Tested-by: Aurelien Aptel 
Signed-off-by: Steve French 
Signed-off-by: Greg Kroah-Hartman 

---
 fs/cifs/smb2pdu.c |4 
 1 file changed, 4 insertions(+)

--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -868,6 +868,10 @@ SMB2_tcon(const unsigned int xid, struct
return -EINVAL;
}
 
+   /* SMB2 TREE_CONNECT request must be called with TreeId == 0 */
+   if (tcon)
+   tcon->tid = 0;
+
rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) );
if (rc) {
kfree(unc_path);

[PATCH 3.18 030/124] Reset TreeId to zero on SMB2 TREE_CONNECT

[Greg Kroah-Hartman]

3.18-stable review patch.  If anyone has any objections, please let me know.

--

From: Jan-Marek Glogowski 

commit 806a28efe9b78ffae5e2757e1ee924b8e50c08ab upstream.

Currently the cifs module breaks the CIFS specs on reconnect as
described in http://msdn.microsoft.com/en-us/library/cc246529.aspx:

"TreeId (4 bytes): Uniquely identifies the tree connect for the
command. This MUST be 0 for the SMB2 TREE_CONNECT Request."

Signed-off-by: Jan-Marek Glogowski 
Reviewed-by: Aurelien Aptel 
Tested-by: Aurelien Aptel 
Signed-off-by: Steve French 
Signed-off-by: Greg Kroah-Hartman 

---
 fs/cifs/smb2pdu.c |4 
 1 file changed, 4 insertions(+)

--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -868,6 +868,10 @@ SMB2_tcon(const unsigned int xid, struct
return -EINVAL;
}
 
+   /* SMB2 TREE_CONNECT request must be called with TreeId == 0 */
+   if (tcon)
+   tcon->tid = 0;
+
rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) );
if (rc) {
kfree(unc_path);