1 // SPDX-License-Identifier: Apache-2.0
2 // SPDX-FileCopyrightText: Copyright 2019 IBM Corporation
3
4 #include "ascii_string.hpp"
5
6 #include "pel_types.hpp"
7
8 namespace openpower
9 {
10 namespace pels
11 {
12 namespace src
13 {
14
AsciiString(Stream & stream)15 AsciiString::AsciiString(Stream& stream)
16 {
17 unflatten(stream);
18 }
19
AsciiString(const message::Entry & entry)20 AsciiString::AsciiString(const message::Entry& entry)
21 {
22 // Power Error: 1100RRRR
23 // BMC Error: BDSSRRRR
24 // where:
25 // RRRR = reason code
26 // SS = subsystem ID
27
28 // First is type, like 'BD'
29 setByte(0, entry.src.type);
30
31 // Next is '00', or subsystem ID
32 if (entry.src.type == static_cast<uint8_t>(SRCType::powerError))
33 {
34 setByte(2, 0x00);
35 }
36 else // BMC Error
37 {
38 // If subsystem wasn't specified, it should get set later in
39 // the SRC constructor. Default to 'other' in case it doesn't.
40 setByte(2, entry.subsystem ? entry.subsystem.value() : 0x70);
41 }
42
43 // Then the reason code
44 setByte(4, entry.src.reasonCode >> 8);
45 setByte(6, entry.src.reasonCode & 0xFF);
46
47 // Padded with spaces
48 for (size_t offset = 8; offset < asciiStringSize; offset++)
49 {
50 _string[offset] = ' ';
51 }
52 }
53
flatten(Stream & stream) const54 void AsciiString::flatten(Stream& stream) const
55 {
56 stream.write(_string.data(), _string.size());
57 }
58
unflatten(Stream & stream)59 void AsciiString::unflatten(Stream& stream)
60 {
61 stream.read(_string.data(), _string.size());
62
63 // Only allow certain ASCII characters as other entities will
64 // eventually want to display this.
65 std::for_each(_string.begin(), _string.end(), [](auto& c) {
66 if (!isalnum(c) && (c != ' ') && (c != '.') && (c != ':') && (c != '/'))
67 {
68 c = ' ';
69 }
70 });
71 }
72
get() const73 std::string AsciiString::get() const
74 {
75 std::string string{_string.begin(), _string.begin() + _string.size()};
76 return string;
77 }
78
setByte(size_t byteOffset,uint8_t value)79 void AsciiString::setByte(size_t byteOffset, uint8_t value)
80 {
81 assert(byteOffset < asciiStringSize);
82
83 char characters[3];
84 sprintf(characters, "%02X", value);
85
86 auto writeOffset = byteOffset;
87 _string[writeOffset++] = characters[0];
88 _string[writeOffset] = characters[1];
89 }
90
91 } // namespace src
92 } // namespace pels
93 } // namespace openpower
94