Commit 806a28ef authored Feb 20, 2017 by Jan-Marek Glogowski Committed by Steve French Apr 07, 2017

Reset TreeId to zero on SMB2 TREE_CONNECT

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 <glogow@fbihome.de>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Tested-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <smfrench@gmail.com>
CC: Stable <stable@vger.kernel.org>

parent 4fa8e504

fs/cifs/smb2pdu.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1185,6 +1185,10 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses ses, const char tree,
		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 **) &req);
		if (rc) {
		kfree(unc_path);

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