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
|
/*
* Copyright 2018 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "lpc.hpp"
#include "data.hpp"
#include <cerrno>
#include <cstdint>
#include <cstring>
#include <ipmiblob/blob_errors.hpp>
#include <memory>
#include <string>
namespace host_tool
{
bool LpcDataHandler::sendContents(const std::string& input,
std::uint16_t session)
{
LpcRegion host_lpc_buf;
host_lpc_buf.address = address;
host_lpc_buf.length = length;
std::vector<std::uint8_t> payload(sizeof(host_lpc_buf));
while (true)
{
/* If the writeMeta() is rejected we need to call sessionStat on it. */
try
{
std::fprintf(stderr, "sending writeMeta\n");
std::memcpy(payload.data(), &host_lpc_buf, sizeof(host_lpc_buf));
blob->writeMeta(session, 0x00, payload);
std::fprintf(stderr, "writemeta sent\n");
break;
}
catch (...)
{
std::fprintf(stderr, "caught exception\n");
ipmiblob::StatResponse resp = blob->getStat(session);
if (resp.metadata.empty())
{
std::fprintf(stderr, "Received no metadata bytes back!");
return false;
}
struct MemoryMapResultDetails
{
std::uint8_t code;
std::uint32_t offset;
std::uint32_t length;
} __attribute__((packed));
struct MemoryMapResultDetails bytes;
if (resp.metadata.size() != sizeof(bytes))
{
std::fprintf(
stderr,
"Received insufficient bytes back on expected return!\n");
return false;
}
std::memcpy(&bytes, resp.metadata.data(), sizeof(bytes));
if (bytes.code == EFBIG)
{
std::fprintf(stderr, "EFBIG returned!\n");
host_lpc_buf.length = bytes.length;
host_lpc_buf.address += bytes.offset;
}
else if (bytes.code == 0)
{
/* We're good, continue! */
break;
}
}
}
/* For data blockss, stage data, and send blob write command. */
int inputFd = sys->open(input.c_str(), 0);
if (inputFd < 0)
{
return false;
}
std::int64_t fileSize = sys->getSize(input.c_str());
if (fileSize == 0)
{
std::fprintf(stderr, "Zero-length file, or other file access error\n");
return false;
}
progress->start(fileSize);
/* For Nuvoton the maximum is 4K */
auto readBuffer = std::make_unique<std::uint8_t[]>(host_lpc_buf.length);
if (nullptr == readBuffer)
{
sys->close(inputFd);
std::fprintf(stderr, "Unable to allocate memory for read buffer.\n");
return false;
}
/* TODO: This is similar to PCI insomuch as how it sends data, so combine.
*/
try
{
int bytesRead = 0;
std::uint32_t offset = 0;
do
{
bytesRead =
sys->read(inputFd, readBuffer.get(), host_lpc_buf.length);
if (bytesRead > 0)
{
if (!io->write(host_lpc_buf.address, bytesRead,
readBuffer.get()))
{
std::fprintf(stderr,
"Failed to write to region in memory!\n");
}
struct ipmi_flash::ExtChunkHdr chunk;
chunk.length = bytesRead;
std::vector<std::uint8_t> chunkBytes(sizeof(chunk));
std::memcpy(chunkBytes.data(), &chunk, sizeof(chunk));
/* This doesn't return anything on success. */
blob->writeBytes(session, offset, chunkBytes);
offset += bytesRead;
progress->updateProgress(bytesRead);
}
} while (bytesRead > 0);
}
catch (const ipmiblob::BlobException& b)
{
sys->close(inputFd);
return false;
}
sys->close(inputFd);
return true;
}
} // namespace host_tool
|
