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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>LCOV - skiboot.info - core/vpd.c</title>
<link rel="stylesheet" type="text/css" href="../gcov.css">
</head>
<body>
<table width="100%" border=0 cellspacing=0 cellpadding=0>
<tr><td class="title">LCOV - code coverage report</td></tr>
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
<tr>
<td width="100%">
<table cellpadding=1 border=0 width="100%">
<tr>
<td width="10%" class="headerItem">Current view:</td>
<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">core</a> - vpd.c<span style="font-size: 80%;"> (source / <a href="vpd.c.func-sort-c.html">functions</a>)</span></td>
<td width="5%"></td>
<td width="15%"></td>
<td width="10%" class="headerCovTableHead">Hit</td>
<td width="10%" class="headerCovTableHead">Total</td>
<td width="15%" class="headerCovTableHead">Coverage</td>
</tr>
<tr>
<td class="headerItem">Test:</td>
<td class="headerValue">skiboot.info</td>
<td></td>
<td class="headerItem">Lines:</td>
<td class="headerCovTableEntry">52</td>
<td class="headerCovTableEntry">59</td>
<td class="headerCovTableEntryMed">88.1 %</td>
</tr>
<tr>
<td class="headerItem">Date:</td>
<td class="headerValue">2022-07-05 16:01:27</td>
<td></td>
<td class="headerItem">Functions:</td>
<td class="headerCovTableEntry">4</td>
<td class="headerCovTableEntry">4</td>
<td class="headerCovTableEntryHi">100.0 %</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td class="headerItem">Branches:</td>
<td class="headerCovTableEntry">0</td>
<td class="headerCovTableEntry">0</td>
<td class="headerCovTableEntryHi">-</td>
</tr>
<tr><td><img src="../glass.png" width=3 height=3 alt=""></td></tr>
</table>
</td>
</tr>
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
</table>
<table cellpadding=0 cellspacing=0 border=0>
<tr>
<td><br></td>
</tr>
<tr>
<td>
<pre class="sourceHeading"> Branch data Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : : // SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later</a>
<a name="2"><span class="lineNum"> 2 </span> : : /*</a>
<a name="3"><span class="lineNum"> 3 </span> : : * Parse Vital Product Data (VPD)</a>
<a name="4"><span class="lineNum"> 4 </span> : : *</a>
<a name="5"><span class="lineNum"> 5 </span> : : * Copyright 2013-2019 IBM Corp.</a>
<a name="6"><span class="lineNum"> 6 </span> : : */</a>
<a name="7"><span class="lineNum"> 7 </span> : : </a>
<a name="8"><span class="lineNum"> 8 </span> : : #include <skiboot.h></a>
<a name="9"><span class="lineNum"> 9 </span> : : #include <vpd.h></a>
<a name="10"><span class="lineNum"> 10 </span> : : #include <string.h></a>
<a name="11"><span class="lineNum"> 11 </span> : : #include <device.h></a>
<a name="12"><span class="lineNum"> 12 </span> : : </a>
<a name="13"><span class="lineNum"> 13 </span> : : #define CHECK_SPACE(_p, _n, _e) (((_e) - (_p)) >= (_n))</a>
<a name="14"><span class="lineNum"> 14 </span> : : </a>
<a name="15"><span class="lineNum"> 15 </span> : : /* Low level keyword search in a record. Can be used when we</a>
<a name="16"><span class="lineNum"> 16 </span> : : * need to find the next keyword of a given type, for example</a>
<a name="17"><span class="lineNum"> 17 </span> : : * when having multiple MF/SM keyword pairs</a>
<a name="18"><span class="lineNum"> 18 </span> : : */</a>
<a name="19"><span class="lineNum"> 19 </span> :<span class="lineCov"> 867 : const void *vpd_find_keyword(const void *rec, size_t rec_sz,</span></a>
<a name="20"><span class="lineNum"> 20 </span> : : const char *kw, uint8_t *kw_size)</a>
<a name="21"><span class="lineNum"> 21 </span> : : {</a>
<a name="22"><span class="lineNum"> 22 </span> :<span class="lineCov"> 867 : const uint8_t *p = rec, *end = rec + rec_sz;</span></a>
<a name="23"><span class="lineNum"> 23 </span> : : </a>
<a name="24"><span class="lineNum"> 24 </span> :<span class="lineCov"> 2759 : while (CHECK_SPACE(p, 3, end)) {</span></a>
<a name="25"><span class="lineNum"> 25 </span> :<span class="lineCov"> 2729 : uint8_t k1 = *(p++);</span></a>
<a name="26"><span class="lineNum"> 26 </span> :<span class="lineCov"> 2729 : uint8_t k2 = *(p++);</span></a>
<a name="27"><span class="lineNum"> 27 </span> :<span class="lineCov"> 2729 : uint8_t sz = *(p++);</span></a>
<a name="28"><span class="lineNum"> 28 </span> : : </a>
<a name="29"><span class="lineNum"> 29 </span> :<span class="lineCov"> 2729 : if (k1 == kw[0] && k2 == kw[1]) {</span></a>
<a name="30"><span class="lineNum"> 30 </span> :<span class="lineCov"> 837 : if (kw_size)</span></a>
<a name="31"><span class="lineNum"> 31 </span> :<span class="lineCov"> 834 : *kw_size = sz;</span></a>
<a name="32"><span class="lineNum"> 32 </span> :<span class="lineCov"> 837 : return p;</span></a>
<a name="33"><span class="lineNum"> 33 </span> : : }</a>
<a name="34"><span class="lineNum"> 34 </span> :<span class="lineCov"> 1892 : p += sz;</span></a>
<a name="35"><span class="lineNum"> 35 </span> : : }</a>
<a name="36"><span class="lineNum"> 36 </span> :<span class="lineCov"> 30 : return NULL;</span></a>
<a name="37"><span class="lineNum"> 37 </span> : : }</a>
<a name="38"><span class="lineNum"> 38 </span> : : </a>
<a name="39"><span class="lineNum"> 39 </span> : : /* vpd_valid - does some basic sanity checks to ensure a VPD blob is</a>
<a name="40"><span class="lineNum"> 40 </span> : : * actually a VPD blob</a>
<a name="41"><span class="lineNum"> 41 </span> : : */</a>
<a name="42"><span class="lineNum"> 42 </span> :<span class="lineCov"> 33 : bool vpd_valid(const void *vvpd, size_t vpd_size)</span></a>
<a name="43"><span class="lineNum"> 43 </span> : : {</a>
<a name="44"><span class="lineNum"> 44 </span> :<span class="lineCov"> 33 : const uint8_t *vpd = vvpd;</span></a>
<a name="45"><span class="lineNum"> 45 </span> :<span class="lineCov"> 33 : int size, i = 0;</span></a>
<a name="46"><span class="lineNum"> 46 </span> : : </a>
<a name="47"><span class="lineNum"> 47 </span> : : /* find the record start byte */</a>
<a name="48"><span class="lineNum"> 48 </span> :<span class="lineCov"> 33 : while (i < vpd_size)</span></a>
<a name="49"><span class="lineNum"> 49 </span> :<span class="lineCov"> 33 : if (vpd[i++] == 0x84)</span></a>
<a name="50"><span class="lineNum"> 50 </span> :<span class="lineCov"> 33 : break;</span></a>
<a name="51"><span class="lineNum"> 51 </span> : : </a>
<a name="52"><span class="lineNum"> 52 </span> :<span class="lineCov"> 33 : if (i >= vpd_size)</span></a>
<a name="53"><span class="lineNum"> 53 </span> :<span class="lineNoCov"> 0 : return false;</span></a>
<a name="54"><span class="lineNum"> 54 </span> : : </a>
<a name="55"><span class="lineNum"> 55 </span> : : /* next two bytes are the record length, little endian */</a>
<a name="56"><span class="lineNum"> 56 </span> :<span class="lineCov"> 33 : size = 2;</span></a>
<a name="57"><span class="lineNum"> 57 </span> :<span class="lineCov"> 33 : size += vpd[i];</span></a>
<a name="58"><span class="lineNum"> 58 </span> :<span class="lineCov"> 33 : size += vpd[i + 1] << 8;</span></a>
<a name="59"><span class="lineNum"> 59 </span> : : </a>
<a name="60"><span class="lineNum"> 60 </span> :<span class="lineCov"> 33 : i += size; /* skip to the end marker */</span></a>
<a name="61"><span class="lineNum"> 61 </span> : : </a>
<a name="62"><span class="lineNum"> 62 </span> :<span class="lineCov"> 33 : if (i >= vpd_size || vpd[i] != 0x78)</span></a>
<a name="63"><span class="lineNum"> 63 </span> :<span class="lineNoCov"> 0 : return false;</span></a>
<a name="64"><span class="lineNum"> 64 </span> : : </a>
<a name="65"><span class="lineNum"> 65 </span> :<span class="lineCov"> 33 : return true;</span></a>
<a name="66"><span class="lineNum"> 66 </span> : : }</a>
<a name="67"><span class="lineNum"> 67 </span> : : </a>
<a name="68"><span class="lineNum"> 68 </span> : : /* Locate a record in a VPD blob</a>
<a name="69"><span class="lineNum"> 69 </span> : : *</a>
<a name="70"><span class="lineNum"> 70 </span> : : * Note: This works with VPD LIDs. It will scan until it finds</a>
<a name="71"><span class="lineNum"> 71 </span> : : * the first 0x84, so it will skip all those 0's that the VPD</a>
<a name="72"><span class="lineNum"> 72 </span> : : * LIDs seem to contain</a>
<a name="73"><span class="lineNum"> 73 </span> : : */</a>
<a name="74"><span class="lineNum"> 74 </span> :<span class="lineCov"> 313 : const void *vpd_find_record(const void *vpd, size_t vpd_size,</span></a>
<a name="75"><span class="lineNum"> 75 </span> : : const char *record, size_t *sz)</a>
<a name="76"><span class="lineNum"> 76 </span> : : {</a>
<a name="77"><span class="lineNum"> 77 </span> :<span class="lineCov"> 313 : const uint8_t *p = vpd, *end = vpd + vpd_size;</span></a>
<a name="78"><span class="lineNum"> 78 </span> :<span class="lineCov"> 313 : bool first_start = true;</span></a>
<a name="79"><span class="lineNum"> 79 </span> : : size_t rec_sz;</a>
<a name="80"><span class="lineNum"> 80 </span> :<span class="lineCov"> 313 : uint8_t namesz = 0;</span></a>
<a name="81"><span class="lineNum"> 81 </span> : : const char *rec_name;</a>
<a name="82"><span class="lineNum"> 82 </span> : : </a>
<a name="83"><span class="lineNum"> 83 </span> :<span class="lineCov"> 313 : if (!vpd)</span></a>
<a name="84"><span class="lineNum"> 84 </span> :<span class="lineNoCov"> 0 : return NULL;</span></a>
<a name="85"><span class="lineNum"> 85 </span> : : </a>
<a name="86"><span class="lineNum"> 86 </span> :<span class="lineCov"> 1002 : while (CHECK_SPACE(p, 4, end)) {</span></a>
<a name="87"><span class="lineNum"> 87 </span> : : /* Get header byte */</a>
<a name="88"><span class="lineNum"> 88 </span> :<span class="lineCov"> 990 : if (*(p++) != 0x84) {</span></a>
<a name="89"><span class="lineNum"> 89 </span> : : /* Skip initial crap in VPD LIDs */</a>
<a name="90"><span class="lineNum"> 90 </span> :<span class="lineCov"> 374 : if (first_start)</span></a>
<a name="91"><span class="lineNum"> 91 </span> :<span class="lineCov"> 330 : continue;</span></a>
<a name="92"><span class="lineNum"> 92 </span> :<span class="lineCov"> 44 : break;</span></a>
<a name="93"><span class="lineNum"> 93 </span> : : }</a>
<a name="94"><span class="lineNum"> 94 </span> :<span class="lineCov"> 616 : first_start = false;</span></a>
<a name="95"><span class="lineNum"> 95 </span> :<span class="lineCov"> 616 : rec_sz = *(p++);</span></a>
<a name="96"><span class="lineNum"> 96 </span> :<span class="lineCov"> 616 : rec_sz |= *(p++) << 8;</span></a>
<a name="97"><span class="lineNum"> 97 </span> :<span class="lineCov"> 616 : if (!CHECK_SPACE(p, rec_sz, end)) {</span></a>
<a name="98"><span class="lineNum"> 98 </span> :<span class="lineNoCov"> 0 : prerror("VPD: Malformed or truncated VPD,"</span></a>
<a name="99"><span class="lineNum"> 99 </span> : : " record size doesn't fit\n");</a>
<a name="100"><span class="lineNum"> 100 </span> :<span class="lineNoCov"> 0 : return NULL;</span></a>
<a name="101"><span class="lineNum"> 101 </span> : : }</a>
<a name="102"><span class="lineNum"> 102 </span> : : </a>
<a name="103"><span class="lineNum"> 103 </span> : : /* Find record name */</a>
<a name="104"><span class="lineNum"> 104 </span> :<span class="lineCov"> 616 : rec_name = vpd_find_keyword(p, rec_sz, "RT", &namesz);</span></a>
<a name="105"><span class="lineNum"> 105 </span> :<span class="lineCov"> 616 : if (rec_name && strncmp(record, rec_name, namesz) == 0) {</span></a>
<a name="106"><span class="lineNum"> 106 </span> :<span class="lineCov"> 257 : if (sz)</span></a>
<a name="107"><span class="lineNum"> 107 </span> :<span class="lineCov"> 251 : *sz = rec_sz;</span></a>
<a name="108"><span class="lineNum"> 108 </span> :<span class="lineCov"> 257 : return p;</span></a>
<a name="109"><span class="lineNum"> 109 </span> : : }</a>
<a name="110"><span class="lineNum"> 110 </span> : : </a>
<a name="111"><span class="lineNum"> 111 </span> :<span class="lineCov"> 359 : p += rec_sz;</span></a>
<a name="112"><span class="lineNum"> 112 </span> :<span class="lineCov"> 359 : if (*(p++) != 0x78) {</span></a>
<a name="113"><span class="lineNum"> 113 </span> :<span class="lineNoCov"> 0 : prerror("VPD: Malformed or truncated VPD,"</span></a>
<a name="114"><span class="lineNum"> 114 </span> : : " missing final 0x78 in record %.4s\n",</a>
<a name="115"><span class="lineNum"> 115 </span> : : rec_name ? rec_name : "????");</a>
<a name="116"><span class="lineNum"> 116 </span> :<span class="lineNoCov"> 0 : return NULL;</span></a>
<a name="117"><span class="lineNum"> 117 </span> : : }</a>
<a name="118"><span class="lineNum"> 118 </span> : : }</a>
<a name="119"><span class="lineNum"> 119 </span> :<span class="lineCov"> 56 : return NULL;</span></a>
<a name="120"><span class="lineNum"> 120 </span> : : }</a>
<a name="121"><span class="lineNum"> 121 </span> : : </a>
<a name="122"><span class="lineNum"> 122 </span> : : /* Locate a keyword in a record in a VPD blob</a>
<a name="123"><span class="lineNum"> 123 </span> : : *</a>
<a name="124"><span class="lineNum"> 124 </span> : : * Note: This works with VPD LIDs. It will scan until it finds</a>
<a name="125"><span class="lineNum"> 125 </span> : : * the first 0x84, so it will skip all those 0's that the VPD</a>
<a name="126"><span class="lineNum"> 126 </span> : : * LIDs seem to contain</a>
<a name="127"><span class="lineNum"> 127 </span> : : */</a>
<a name="128"><span class="lineNum"> 128 </span> :<span class="lineCov"> 251 : const void *vpd_find(const void *vpd, size_t vpd_size,</span></a>
<a name="129"><span class="lineNum"> 129 </span> : : const char *record, const char *keyword,</a>
<a name="130"><span class="lineNum"> 130 </span> : : uint8_t *sz)</a>
<a name="131"><span class="lineNum"> 131 </span> : : {</a>
<a name="132"><span class="lineNum"> 132 </span> : : size_t rec_sz;</a>
<a name="133"><span class="lineNum"> 133 </span> : : const uint8_t *p;</a>
<a name="134"><span class="lineNum"> 134 </span> : : </a>
<a name="135"><span class="lineNum"> 135 </span> :<span class="lineCov"> 251 : p = vpd_find_record(vpd, vpd_size, record, &rec_sz);</span></a>
<a name="136"><span class="lineNum"> 136 </span> :<span class="lineCov"> 251 : if (p)</span></a>
<a name="137"><span class="lineNum"> 137 </span> :<span class="lineCov"> 251 : p = vpd_find_keyword(p, rec_sz, keyword, sz);</span></a>
<a name="138"><span class="lineNum"> 138 </span> :<span class="lineCov"> 251 : return p;</span></a>
<a name="139"><span class="lineNum"> 139 </span> : : }</a>
</pre>
</td>
</tr>
</table>
<br>
<table width="100%" border=0 cellspacing=0 cellpadding=0>
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
<tr><td class="versionInfo">Generated by: <a href="http://ltp.sourceforge.net/coverage/lcov.php" target="_parent">LCOV version 1.14</a></td></tr>
</table>
<br>
</body>
</html>
|
