xref: /illumos-gate/usr/src/lib/libipmi/common/ipmi_misc.c (revision 46b592853d0f4f11781b6b0a7533f267c6aee132)
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 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <libipmi.h>
27 #include <stdio.h>
28 #include <string.h>
29 
30 #include "ipmi_impl.h"
31 
32 ipmi_deviceid_t *
33 ipmi_get_deviceid(ipmi_handle_t *ihp)
34 {
35 	ipmi_cmd_t cmd, *resp;
36 	uint16_t id_prod;
37 
38 	if (ihp->ih_deviceid != NULL)
39 		return (ihp->ih_deviceid);
40 
41 	cmd.ic_netfn = IPMI_NETFN_APP;
42 	cmd.ic_lun = 0;
43 	cmd.ic_cmd = IPMI_CMD_GET_DEVICEID;
44 	cmd.ic_data = NULL;
45 	cmd.ic_dlen = 0;
46 
47 	if ((resp = ipmi_send(ihp, &cmd)) == NULL)
48 		return (NULL);
49 
50 	if (resp->ic_dlen < sizeof (ipmi_deviceid_t)) {
51 		(void) ipmi_set_error(ihp, EIPMI_BAD_RESPONSE_LENGTH, NULL);
52 		return (NULL);
53 	}
54 
55 	/*
56 	 * The devid response data may include additional data beyond the end of
57 	 * the normal structure, so we copy the entire response.
58 	 */
59 	if ((ihp->ih_deviceid = ipmi_alloc(ihp, resp->ic_dlen)) == NULL)
60 		return (NULL);
61 
62 	(void) memcpy(ihp->ih_deviceid, resp->ic_data, resp->ic_dlen);
63 	id_prod = LE_IN16(&ihp->ih_deviceid->id_product);
64 	(void) memcpy(&ihp->ih_deviceid->id_product, &id_prod,
65 	    sizeof (id_prod));
66 	ihp->ih_deviceid_len = resp->ic_dlen;
67 
68 	return (ihp->ih_deviceid);
69 }
70 
71 /*
72  * Returns the firmware revision as a string.  This does the work of converting
73  * the deviceid data into a human readable string (decoding the BCD values).
74  * It also encodes the fact that Sun ILOM includes the additional micro revision
75  * at the end of the deviceid information.
76  */
77 const char *
78 ipmi_firmware_version(ipmi_handle_t *ihp)
79 {
80 	ipmi_deviceid_t *dp;
81 	uint8_t *auxrev;
82 	size_t len;
83 	char rev[128];
84 	int i;
85 
86 	if (ihp->ih_firmware_rev != NULL)
87 		return (ihp->ih_firmware_rev);
88 
89 	if ((dp = ipmi_get_deviceid(ihp)) == NULL)
90 		return (NULL);
91 
92 	/*
93 	 * Start with the major an minor revision numbers
94 	 */
95 	(void) snprintf(rev, sizeof (rev), "%d.%d", dp->id_firm_major,
96 	    ipmi_convert_bcd(dp->id_firm_minor));
97 
98 	if (ipmi_is_sun_ilom(dp) &&
99 	    ihp->ih_deviceid_len >= sizeof (ipmi_deviceid_t) + 4) {
100 		/*
101 		 * With Sun ILOM we have the micro revision at the end of the
102 		 * deviceid.  The first two bytes of the aux revision field are
103 		 * the platform version and release version.
104 		 */
105 		auxrev = (uint8_t *)dp + sizeof (ipmi_deviceid_t);
106 		for (i = 0; i < 2; i++) {
107 			if (auxrev[i] == 0)
108 				continue;
109 
110 			len = strlen(rev);
111 			(void) snprintf(rev + len, sizeof (rev) - len, ".%u",
112 			    auxrev[i]);
113 		}
114 	}
115 
116 	if ((ihp->ih_firmware_rev = ipmi_strdup(ihp, rev)) == NULL)
117 		return (NULL);
118 
119 	return (ihp->ih_firmware_rev);
120 }
121 
122 ipmi_channel_info_t *
123 ipmi_get_channel_info(ipmi_handle_t *ihp, int number)
124 {
125 	ipmi_cmd_t cmd, *rsp;
126 	uint8_t channel;
127 
128 	if (number > 0xF) {
129 		(void) ipmi_set_error(ihp, EIPMI_INVALID_REQUEST, NULL);
130 		return (NULL);
131 	}
132 
133 	channel = (uint8_t)number;
134 
135 	cmd.ic_netfn = IPMI_NETFN_APP;
136 	cmd.ic_lun = 0;
137 	cmd.ic_cmd = IPMI_CMD_GET_CHANNEL_INFO;
138 	cmd.ic_data = &channel;
139 	cmd.ic_dlen = sizeof (channel);
140 
141 	if ((rsp = ipmi_send(ihp, &cmd)) == NULL)
142 		return (NULL);
143 
144 	if (rsp->ic_dlen < sizeof (ipmi_channel_info_t)) {
145 		(void) ipmi_set_error(ihp, EIPMI_BAD_RESPONSE_LENGTH, NULL);
146 		return (NULL);
147 	}
148 
149 	return (rsp->ic_data);
150 }
151