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/*
* Copyright 2019 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 "net.hpp"
#include "data.hpp"
#include "flags.hpp"
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
#include <sys/sendfile.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <cstdint>
#include <cstring>
#include <ipmiblob/blob_errors.hpp>
#include <memory>
#include <optional>
#include <stdplus/handle/managed.hpp>
#include <string>
#include <vector>
namespace
{
void closefd(int&& fd, const internal::Sys*& sys)
{
sys->close(fd);
}
using Fd = stdplus::Managed<int, const internal::Sys*>::Handle<closefd>;
} // namespace
namespace host_tool
{
bool NetDataHandler::sendContents(const std::string& input,
std::uint16_t session)
{
constexpr size_t blockSize = 64 * 1024;
Fd inputFd(std::nullopt, sys);
{
inputFd.reset(sys->open(input.c_str(), O_RDONLY));
if (*inputFd < 0)
{
(void)inputFd.release();
std::fprintf(stderr, "Unable to open file: '%s'\n", input.c_str());
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);
}
Fd connFd(std::nullopt, sys);
{
struct addrinfo hints;
std::memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_NUMERICHOST;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
struct addrinfo *addrs, *addr;
int ret = sys->getaddrinfo(host.c_str(), port.c_str(), &hints, &addrs);
if (ret < 0)
{
std::fprintf(stderr, "Couldn't parse address %s with port %s: %s\n",
host.c_str(), port.c_str(), gai_strerror(ret));
return false;
}
for (addr = addrs; addr != nullptr; addr = addr->ai_next)
{
connFd.reset(sys->socket(addr->ai_family, addr->ai_socktype,
addr->ai_protocol));
if (*connFd == -1)
continue;
if (sys->connect(*connFd, addr->ai_addr, addr->ai_addrlen) != -1)
break;
}
// TODO: use stdplus Managed for the addrinfo structs
sys->freeaddrinfo(addrs);
if (addr == nullptr)
{
std::fprintf(stderr, "Failed to connect\n");
return false;
}
}
try
{
int bytesSent = 0;
off_t offset = 0;
do
{
bytesSent = sys->sendfile(*connFd, *inputFd, &offset, blockSize);
if (bytesSent < 0)
{
std::fprintf(stderr, "Failed to send data to BMC: %s\n",
strerror(errno));
return false;
}
else if (bytesSent > 0)
{
/* Ok, so the data is staged, now send the blob write with
* the details.
*/
struct ipmi_flash::ExtChunkHdr chunk;
chunk.length = bytesSent;
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 - bytesSent, chunkBytes);
progress->updateProgress(bytesSent);
}
} while (bytesSent > 0);
}
catch (const ipmiblob::BlobException& b)
{
return false;
}
return true;
}
} // namespace host_tool
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