2012-05-15 16:20:51 +00:00
|
|
|
/*
|
|
|
|
* SMB1 (CIFS) version specific operations
|
|
|
|
*
|
|
|
|
* Copyright (c) 2012, Jeff Layton <jlayton@redhat.com>
|
|
|
|
*
|
|
|
|
* This library is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License v2 as published
|
|
|
|
* by the Free Software Foundation.
|
|
|
|
*
|
|
|
|
* This library is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
|
|
|
* the GNU Lesser General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
|
|
* along with this library; if not, write to the Free Software
|
|
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "cifsglob.h"
|
2012-05-15 16:21:10 +00:00
|
|
|
#include "cifsproto.h"
|
|
|
|
#include "cifs_debug.h"
|
2012-02-28 11:23:34 +00:00
|
|
|
#include "cifspdu.h"
|
2012-05-15 16:21:10 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* An NT cancel request header looks just like the original request except:
|
|
|
|
*
|
|
|
|
* The Command is SMB_COM_NT_CANCEL
|
|
|
|
* The WordCount is zeroed out
|
|
|
|
* The ByteCount is zeroed out
|
|
|
|
*
|
|
|
|
* This function mangles an existing request buffer into a
|
|
|
|
* SMB_COM_NT_CANCEL request and then sends it.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
send_nt_cancel(struct TCP_Server_Info *server, void *buf,
|
|
|
|
struct mid_q_entry *mid)
|
|
|
|
{
|
|
|
|
int rc = 0;
|
|
|
|
struct smb_hdr *in_buf = (struct smb_hdr *)buf;
|
|
|
|
|
|
|
|
/* -4 for RFC1001 length and +2 for BCC field */
|
|
|
|
in_buf->smb_buf_length = cpu_to_be32(sizeof(struct smb_hdr) - 4 + 2);
|
|
|
|
in_buf->Command = SMB_COM_NT_CANCEL;
|
|
|
|
in_buf->WordCount = 0;
|
|
|
|
put_bcc(0, in_buf);
|
|
|
|
|
|
|
|
mutex_lock(&server->srv_mutex);
|
|
|
|
rc = cifs_sign_smb(in_buf, server, &mid->sequence_number);
|
|
|
|
if (rc) {
|
|
|
|
mutex_unlock(&server->srv_mutex);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
|
|
|
|
mutex_unlock(&server->srv_mutex);
|
|
|
|
|
|
|
|
cFYI(1, "issued NT_CANCEL for mid %u, rc = %d",
|
|
|
|
in_buf->Mid, rc);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
2012-05-15 16:20:51 +00:00
|
|
|
|
|
|
|
struct smb_version_operations smb1_operations = {
|
2012-05-15 16:21:10 +00:00
|
|
|
.send_cancel = send_nt_cancel,
|
2012-05-15 16:20:51 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct smb_version_values smb1_values = {
|
|
|
|
.version_string = SMB1_VERSION_STRING,
|
2012-02-28 11:23:34 +00:00
|
|
|
.large_lock_type = LOCKING_ANDX_LARGE_FILES,
|
|
|
|
.exclusive_lock_type = 0,
|
|
|
|
.shared_lock_type = LOCKING_ANDX_SHARED_LOCK,
|
|
|
|
.unlock_lock_type = 0,
|
2012-05-15 16:20:51 +00:00
|
|
|
};
|