1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 2017, Joyent, Inc.
*/
#include <libipmi.h>
#include <string.h>
#include "ipmi_impl.h"
/*
* Extracts bits between index h (high, inclusive) and l (low, exclusive) from
* u, which must be an unsigned integer.
*/
#define BITX(u, h, l) (((u) >> (l)) & ((1LU << ((h) - (l) + 1LU)) - 1LU))
/*
* The default and minimum size in bytes that will be used when reading
* the FRU inventory area.
*/
#define DEF_CHUNK_SZ 128
#define MIN_CHUNK_SZ 16
typedef struct ipmi_fru_read
{
uint8_t ifr_devid;
uint8_t ifr_offset_lsb;
uint8_t ifr_offset_msb;
uint8_t ifr_count;
} ipmi_fru_read_t;
/*
* returns: size of FRU inventory data in bytes, on success
* -1, otherwise
*/
int
ipmi_fru_read(ipmi_handle_t *ihp, ipmi_sdr_fru_locator_t *fru_loc, char **buf)
{
ipmi_cmd_t cmd, *resp;
int ierrno;
uint8_t count, devid, chunksz;
uint16_t sz, offset = 0;
ipmi_fru_read_t cmd_data_in;
char *tmp;
devid = fru_loc->_devid_or_slaveaddr._logical._is_fl_devid;
/*
* First we issue a command to retrieve the size of the specified FRU's
* inventory area
*/
cmd.ic_netfn = IPMI_NETFN_STORAGE;
cmd.ic_cmd = IPMI_CMD_GET_FRU_INV_AREA;
cmd.ic_data = &devid;
cmd.ic_dlen = sizeof (uint8_t);
cmd.ic_lun = 0;
if ((resp = ipmi_send(ihp, &cmd)) == NULL)
return (-1);
if (resp->ic_dlen != 3) {
(void) ipmi_set_error(ihp, EIPMI_BAD_RESPONSE_LENGTH, NULL);
return (-1);
}
(void) memcpy(&sz, resp->ic_data, sizeof (uint16_t));
if ((tmp = malloc(sz)) == NULL) {
(void) ipmi_set_error(ihp, EIPMI_NOMEM, NULL);
return (-1);
}
chunksz = DEF_CHUNK_SZ;
while (offset < sz) {
cmd_data_in.ifr_devid = devid;
cmd_data_in.ifr_offset_lsb = BITX(offset, 7, 0);
cmd_data_in.ifr_offset_msb = BITX(offset, 15, 8);
if ((sz - offset) < chunksz)
cmd_data_in.ifr_count = sz - offset;
else
cmd_data_in.ifr_count = chunksz;
cmd.ic_netfn = IPMI_NETFN_STORAGE;
cmd.ic_cmd = IPMI_CMD_READ_FRU_DATA;
cmd.ic_data = &cmd_data_in;
cmd.ic_dlen = sizeof (ipmi_fru_read_t);
cmd.ic_lun = 0;
/*
* The FRU area must be read in chunks as its total size will
* be larger than what would fit in a single message. The
* maximum size of a message can vary between platforms so
* if while attempting to read a chunk we receive an error code
* indicating that the requested chunk size is invalid, we will
* perform a reverse exponential backoff of the chunk size until
* either the read succeeds or we hit bottom, at which point
* we'll fail the operation.
*/
if ((resp = ipmi_send(ihp, &cmd)) == NULL) {
ierrno = ipmi_errno(ihp);
if (chunksz > MIN_CHUNK_SZ &&
(ierrno == EIPMI_DATA_LENGTH_EXCEEDED ||
ierrno == EIPMI_INVALID_REQUEST)) {
chunksz = chunksz >> 1;
continue;
}
free(tmp);
return (-1);
}
(void) memcpy(&count, resp->ic_data, sizeof (uint8_t));
if (count != cmd_data_in.ifr_count) {
(void) ipmi_set_error(ihp, EIPMI_BAD_RESPONSE_LENGTH,
NULL);
free(tmp);
return (-1);
}
(void) memcpy(tmp+offset, (char *)(resp->ic_data)+1, count);
offset += count;
}
*buf = tmp;
return (sz);
}
int
ipmi_fru_parse_product(ipmi_handle_t *ihp, char *fru_area,
ipmi_fru_prod_info_t *buf)
{
ipmi_fru_hdr_t fru_hdr;
char *tmp;
uint8_t len, typelen;
(void) memcpy(&fru_hdr, fru_area, sizeof (ipmi_fru_hdr_t));
/*
* We get the offset to the product info area from the FRU common
* header which is at the start of the FRU inventory area.
*
* The product info area is optional, so if the offset is NULL,
* indicating that it doesn't exist, then we return an error.
*/
if (!fru_hdr.ifh_product_info_off) {
(void) ipmi_set_error(ihp, EIPMI_NOT_PRESENT, NULL);
return (-1);
}
tmp = fru_area + (fru_hdr.ifh_product_info_off * 8) + 3;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1, buf->ifpi_manuf_name);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1,
buf->ifpi_product_name);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1, buf->ifpi_part_number);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1,
buf->ifpi_product_version);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1,
buf->ifpi_product_serial);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1, buf->ifpi_asset_tag);
return (0);
}
/*
* The Board Info area is described in Sect 11 of the IPMI Platform Management
* FRU Information Storage Definition (v1.1).
*/
int
ipmi_fru_parse_board(ipmi_handle_t *ihp, char *fru_area,
ipmi_fru_brd_info_t *buf)
{
ipmi_fru_hdr_t fru_hdr;
char *tmp;
uint8_t len, typelen;
(void) memcpy(&fru_hdr, fru_area, sizeof (ipmi_fru_hdr_t));
/*
* We get the offset to the board info area from the FRU common
* header which is at the start of the FRU inventory area.
*
* The board info area is optional, so if the offset is NULL,
* indicating that it doesn't exist, then we return an error.
*/
if (!fru_hdr.ifh_board_info_off) {
(void) ipmi_set_error(ihp, EIPMI_NOT_PRESENT, NULL);
return (-1);
}
tmp = fru_area + (fru_hdr.ifh_board_info_off * 8) + 3;
(void) memcpy(buf->ifbi_manuf_date, tmp, 3);
tmp += 3;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1, buf->ifbi_manuf_name);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1, buf->ifbi_board_name);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1,
buf->ifbi_product_serial);
tmp += len + 1;
(void) memcpy(&typelen, tmp, sizeof (uint8_t));
len = BITX(typelen, 5, 0);
ipmi_decode_string((typelen >> 6), len, tmp+1, buf->ifbi_part_number);
return (0);
}
|
