xref: /titanic_52/usr/src/lib/libipmi/common/ipmi_misc.c (revision cc7a88b54b4969574f03e1a1225bb13be487f5db)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include <libipmi.h>
29 #include <stdio.h>
30 #include <string.h>
31 
32 #include "ipmi_impl.h"
33 
34 ipmi_deviceid_t *
35 ipmi_get_deviceid(ipmi_handle_t *ihp)
36 {
37 	ipmi_cmd_t cmd, *resp;
38 
39 	if (ihp->ih_deviceid != NULL)
40 		return (ihp->ih_deviceid);
41 
42 	cmd.ic_netfn = IPMI_NETFN_APP;
43 	cmd.ic_lun = 0;
44 	cmd.ic_cmd = IPMI_CMD_GET_DEVICEID;
45 	cmd.ic_data = NULL;
46 	cmd.ic_dlen = 0;
47 
48 	if ((resp = ipmi_send(ihp, &cmd)) == NULL)
49 		return (NULL);
50 
51 	if (resp->ic_dlen < sizeof (ipmi_deviceid_t)) {
52 		(void) ipmi_set_error(ihp, EIPMI_BAD_RESPONSE_LENGTH, NULL);
53 		return (NULL);
54 	}
55 
56 	/*
57 	 * The devid response data may include additional data beyond the end of
58 	 * the normal structure, so we copy the entire response.
59 	 */
60 	if ((ihp->ih_deviceid = ipmi_alloc(ihp, resp->ic_dlen)) == NULL)
61 		return (NULL);
62 
63 	(void) memcpy(ihp->ih_deviceid, resp->ic_data, resp->ic_dlen);
64 	ihp->ih_deviceid->id_product = LE_16(ihp->ih_deviceid->id_product);
65 	ihp->ih_deviceid_len = resp->ic_dlen;
66 
67 	return (ihp->ih_deviceid);
68 }
69 
70 /*
71  * Returns the firmware revision as a string.  This does the work of converting
72  * the deviceid data into a human readable string (decoding the BCD values).
73  * It also encodes the fact that Sun ILOM includes the additional micro revision
74  * at the end of the deviceid information.
75  */
76 const char *
77 ipmi_firmware_version(ipmi_handle_t *ihp)
78 {
79 	ipmi_deviceid_t *dp;
80 	uint8_t *auxrev;
81 	size_t len;
82 	char rev[128];
83 	int i;
84 
85 	if (ihp->ih_firmware_rev != NULL)
86 		return (ihp->ih_firmware_rev);
87 
88 	if ((dp = ipmi_get_deviceid(ihp)) == NULL)
89 		return (NULL);
90 
91 	/*
92 	 * Start with the major an minor revision numbers
93 	 */
94 	(void) snprintf(rev, sizeof (rev), "%d.%d", dp->id_firm_major,
95 	    ipmi_convert_bcd(dp->id_firm_minor));
96 
97 	if (ipmi_is_sun_ilom(dp) &&
98 	    ihp->ih_deviceid_len >= sizeof (ipmi_deviceid_t) + 4) {
99 		/*
100 		 * With Sun ILOM we have the micro revision at the end of the
101 		 * deviceid.  The first two bytes of the aux revision field are
102 		 * the platform version and release version.
103 		 */
104 		auxrev = (uint8_t *)dp + sizeof (ipmi_deviceid_t);
105 		for (i = 0; i < 2; i++) {
106 			if (auxrev[i] == 0)
107 				continue;
108 
109 			len = strlen(rev);
110 			(void) snprintf(rev + len, sizeof (rev) - len, ".%u",
111 			    auxrev[i]);
112 		}
113 	}
114 
115 	if ((ihp->ih_firmware_rev = ipmi_strdup(ihp, rev)) == NULL)
116 		return (NULL);
117 
118 	return (ihp->ih_firmware_rev);
119 }
120