Home | History | Annotate | Download | only in smbsrv
      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 /*
     27  * SMB: process_exit
     28  *
     29  * This command informs the server that a client process has terminated.
     30  * The server must close all files opened by Pid in the SMB header.  This
     31  * must automatically release all locks the process holds.
     32  *
     33  * Client Request                     Description
     34  * ================================== =================================
     35  *
     36  * UCHAR WordCount;                   Count of parameter words = 0
     37  * USHORT ByteCount;                  Count of data bytes = 0
     38  *
     39  * Server Response                    Description
     40  * ================================== =================================
     41  *
     42  * UCHAR WordCount;                   Count of parameter words = 0
     43  *  USHORT ByteCount;                 Count of data bytes = 0
     44  *
     45  * This SMB should not generate any errors from the server, unless the
     46  * server is a user mode server and Uid in the SMB header is invalid.
     47  *
     48  * Clients are not required to send this SMB, they can do all cleanup
     49  * necessary by sending close SMBs to the server to release resources.  In
     50  * fact, clients who have negotiated LANMAN 1.0 and later probably do not
     51  * send this message at all.
     52  */
     53 
     54 #include <smbsrv/smb_kproto.h>
     55 
     56 smb_sdrc_t
     57 smb_pre_process_exit(smb_request_t *sr)
     58 {
     59 	DTRACE_SMB_1(op__ProcessExit__start, smb_request_t *, sr);
     60 	return (SDRC_SUCCESS);
     61 }
     62 
     63 void
     64 smb_post_process_exit(smb_request_t *sr)
     65 {
     66 	DTRACE_SMB_1(op__ProcessExit__done, smb_request_t *, sr);
     67 }
     68 
     69 smb_sdrc_t
     70 smb_com_process_exit(smb_request_t *sr)
     71 {
     72 	int rc;
     73 
     74 	sr->uid_user = smb_user_lookup_by_uid(sr->session, sr->smb_uid);
     75 	if (sr->uid_user == NULL) {
     76 		rc = smbsr_encode_empty_result(sr);
     77 		return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
     78 	}
     79 
     80 	sr->user_cr = smb_user_getcred(sr->uid_user);
     81 
     82 	/*
     83 	 * If request has a valid tree ID, only look for the PID within
     84 	 * that tree.  Otherwise look in all the trees.  smbtorture seems
     85 	 * to be the only thing that sends this request these days and
     86 	 * it doesn't provide a TID.
     87 	 */
     88 	sr->tid_tree = smb_user_lookup_tree(sr->uid_user, sr->smb_tid);
     89 	if (sr->tid_tree != NULL)
     90 		smb_tree_close_pid(sr->tid_tree, sr->smb_pid);
     91 	else
     92 		smb_user_close_pid(sr->uid_user, sr->smb_pid);
     93 
     94 	rc = smbsr_encode_empty_result(sr);
     95 	return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
     96 }
     97