dapl_get_consumer_context.c revision 9517:b4839b0aa7a4 
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/*
23 * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
24 */
25
26/*
27 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
28 * Use is subject to license terms.
29 */
30
31/*
32 *
33 * MODULE: dapl_get_consumer_context.c
34 *
35 * PURPOSE: Interface Adapter management
36 * Description: Interfaces in this file are completely described in
37 *		the DAPL 1.1 API, Chapter 6, section 2
38 *
39 * $Id: dapl_get_consumer_context.c,v 1.5 2003/08/20 13:50:45 sjs2 Exp $
40 */
41
42#include "dapl.h"
43
44/*
45 * dapl_get_consumer_context
46 *
47 * DAPL Requirements Version xxx, 6.2.2.2
48 *
49 * Gets the consumer context from the specified dat_object
50 *
51 * Input:
52 *	dat_handle
53 *
54 * Output:
55 *	context
56 *
57 * Returns:
58 * 	DAT_SUCCESS
59 * 	DAT_INVALID_PARAMETER
60 */
61DAT_RETURN
62dapl_get_consumer_context(
63	IN	DAT_HANDLE	dat_handle,
64	OUT	DAT_CONTEXT	*context)
65{
66	DAT_RETURN	dat_status;
67	DAPL_HEADER	*header;
68
69	dat_status = DAT_SUCCESS;
70
71	header = (DAPL_HEADER *)dat_handle;
72	if (((header) == NULL) ||
73	    ((unsigned long)(header) & 3) ||
74	    (header->magic != DAPL_MAGIC_IA &&
75	    header->magic != DAPL_MAGIC_EVD &&
76	    header->magic != DAPL_MAGIC_EP &&
77	    header->magic != DAPL_MAGIC_LMR &&
78	    header->magic != DAPL_MAGIC_RMR &&
79	    header->magic != DAPL_MAGIC_PZ &&
80	    header->magic != DAPL_MAGIC_PSP &&
81	    header->magic != DAPL_MAGIC_RSP &&
82	    header->magic != DAPL_MAGIC_CR)) {
83		dat_status = DAT_ERROR(DAT_INVALID_HANDLE, 0);
84		goto bail;
85	}
86	*context = header->user_context;
87
88bail:
89	return (dat_status);
90}
91