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 2010 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 *
25 * Copyright (c) 2018, Joyent, Inc.
26 */
27
28#include <libipmi.h>
29#include <string.h>
30
31#include "ipmi_impl.h"
32
33ipmi_handle_t *
34ipmi_open(int *errp, char **msg, uint_t xport_type, nvlist_t *params)
35{
36	ipmi_handle_t *ihp;
37	static char errmsg[48];
38
39	if (msg)
40		*msg = NULL;
41
42	if ((ihp = calloc(1, sizeof (ipmi_handle_t))) == NULL) {
43		*errp = EIPMI_NOMEM;
44		if (msg)
45			*msg = "memory allocation failure";
46		return (NULL);
47	}
48
49	switch (xport_type) {
50	case IPMI_TRANSPORT_BMC:
51		ihp->ih_transport = &ipmi_transport_bmc;
52		break;
53	case IPMI_TRANSPORT_LAN:
54		ihp->ih_transport = &ipmi_transport_lan;
55		break;
56	default:
57		*msg = "invalid transport type specified";
58		return (NULL);
59	}
60
61	ihp->ih_retries = 3;
62
63	if ((ihp->ih_tdata = ihp->ih_transport->it_open(ihp, params)) == NULL ||
64	    ipmi_sdr_init(ihp) != 0 || ipmi_entity_init(ihp) != 0) {
65		*errp = ihp->ih_errno;
66		if (msg) {
67			(void) strncpy(errmsg, ipmi_errmsg(ihp), 47);
68			errmsg[47] = '\0';
69			*msg = errmsg;
70		}
71		ipmi_close(ihp);
72		return (NULL);
73	}
74
75	return (ihp);
76}
77
78void
79ipmi_close(ipmi_handle_t *ihp)
80{
81	if (ihp->ih_transport && ihp->ih_tdata)
82		ihp->ih_transport->it_close(ihp->ih_tdata);
83	ipmi_free(ihp, ihp->ih_deviceid);
84	ipmi_free(ihp, ihp->ih_firmware_rev);
85	ipmi_user_clear(ihp);
86	ipmi_sdr_fini(ihp);
87	ipmi_entity_fini(ihp);
88	free(ihp);
89}
90
91/*
92 * See section 5.2 for a description of the completion codes.
93 */
94static struct ipmi_err_conv {
95	int	bmc_err;
96	int	ipmi_err;
97} ipmi_errtable[] = {
98	{ 0xC0,			EIPMI_BUSY },
99	{ 0xC1,			EIPMI_INVALID_COMMAND },
100	{ 0xC2,			EIPMI_INVALID_COMMAND },
101	{ 0xC3,			EIPMI_COMMAND_TIMEOUT },
102	{ 0xC4,			EIPMI_NOSPACE },
103	{ 0xC5,			EIPMI_INVALID_RESERVATION },
104	{ 0xC6,			EIPMI_INVALID_REQUEST },
105	{ 0xC7,			EIPMI_INVALID_REQUEST },
106	{ 0xC8,			EIPMI_INVALID_REQUEST },
107	{ 0xC9,			EIPMI_INVALID_REQUEST },
108	{ 0xCA,			EIPMI_DATA_LENGTH_EXCEEDED },
109	{ 0xCB,			EIPMI_NOT_PRESENT },
110	{ 0xCC,			EIPMI_INVALID_REQUEST },
111	{ 0xCD,			EIPMI_INVALID_COMMAND },
112	{ 0xCE,			EIPMI_UNAVAILABLE },
113	{ 0xCF,			EIPMI_UNAVAILABLE },
114	{ 0xD0,			EIPMI_BUSY },
115	{ 0xD1,			EIPMI_BUSY },
116	{ 0xD2,			EIPMI_BUSY },
117	{ 0xD3,			EIPMI_NOT_PRESENT },
118	{ 0xD4,			EIPMI_ACCESS },
119	{ 0xD5,			EIPMI_UNAVAILABLE },
120	{ 0xD6,			EIPMI_UNAVAILABLE },
121	{ 0xFF,			EIPMI_UNSPECIFIED },
122};
123
124#define	IPMI_ERROR_COUNT \
125	(sizeof (ipmi_errtable) / sizeof (ipmi_errtable[0]))
126
127ipmi_cmd_t *
128ipmi_send(ipmi_handle_t *ihp, ipmi_cmd_t *cmd)
129{
130	int i;
131
132	if (ihp->ih_transport->it_send(ihp->ih_tdata, cmd, &ihp->ih_response,
133	    &ihp->ih_completion) != 0)
134		return (NULL);
135
136	if (ihp->ih_completion != 0) {
137		for (i = 0; i < IPMI_ERROR_COUNT; i++) {
138			if (ihp->ih_completion == ipmi_errtable[i].bmc_err) {
139				(void) ipmi_set_error(ihp,
140				    ipmi_errtable[i].ipmi_err,
141				    "IPMI completion code 0x%x",
142				    ihp->ih_completion);
143				return (NULL);
144			}
145		}
146
147		(void) ipmi_set_error(ihp, EIPMI_UNKNOWN,
148		    "IPMI completion code 0x%x", ihp->ih_completion);
149		return (NULL);
150	}
151
152	return (&ihp->ih_response);
153}
154