Linux kernel mirror (for testing)
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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2012 CERN (www.cern.ch)
4 * Author: Alessandro Rubini <rubini@gnudd.com>
5 *
6 * This work is part of the White Rabbit project, a research effort led
7 * by CERN, the European Institute for Nuclear Research.
8 */
9#include <linux/ipmi-fru.h>
10
11/* Some internal helpers */
12static struct fru_type_length *
13__fru_get_board_tl(struct fru_common_header *header, int nr)
14{
15 struct fru_board_info_area *bia;
16 struct fru_type_length *tl;
17
18 bia = fru_get_board_area(header);
19 tl = bia->tl;
20 while (nr > 0 && !fru_is_eof(tl)) {
21 tl = fru_next_tl(tl);
22 nr--;
23 }
24 if (fru_is_eof(tl))
25 return NULL;
26 return tl;
27}
28
29static char *__fru_alloc_get_tl(struct fru_common_header *header, int nr)
30{
31 struct fru_type_length *tl;
32 char *res;
33
34 tl = __fru_get_board_tl(header, nr);
35 if (!tl)
36 return NULL;
37
38 res = fru_alloc(fru_strlen(tl) + 1);
39 if (!res)
40 return NULL;
41 return fru_strcpy(res, tl);
42}
43
44/* Public checksum verifiers */
45int fru_header_cksum_ok(struct fru_common_header *header)
46{
47 uint8_t *ptr = (void *)header;
48 int i, sum;
49
50 for (i = sum = 0; i < sizeof(*header); i++)
51 sum += ptr[i];
52 return (sum & 0xff) == 0;
53}
54int fru_bia_cksum_ok(struct fru_board_info_area *bia)
55{
56 uint8_t *ptr = (void *)bia;
57 int i, sum;
58
59 for (i = sum = 0; i < 8 * bia->area_len; i++)
60 sum += ptr[i];
61 return (sum & 0xff) == 0;
62}
63
64/* Get various stuff, trivial */
65char *fru_get_board_manufacturer(struct fru_common_header *header)
66{
67 return __fru_alloc_get_tl(header, 0);
68}
69char *fru_get_product_name(struct fru_common_header *header)
70{
71 return __fru_alloc_get_tl(header, 1);
72}
73char *fru_get_serial_number(struct fru_common_header *header)
74{
75 return __fru_alloc_get_tl(header, 2);
76}
77char *fru_get_part_number(struct fru_common_header *header)
78{
79 return __fru_alloc_get_tl(header, 3);
80}