| #include "config.h" |
| |
| #include "download_manager.hpp" |
| |
| #include "xyz/openbmc_project/Common/error.hpp" |
| |
| #include <sys/wait.h> |
| #include <unistd.h> |
| |
| #include <phosphor-logging/elog-errors.hpp> |
| #include <phosphor-logging/elog.hpp> |
| #include <phosphor-logging/lg2.hpp> |
| |
| #include <algorithm> |
| #include <filesystem> |
| #include <iostream> |
| #include <string> |
| #include <system_error> |
| |
| namespace phosphor |
| { |
| namespace software |
| { |
| namespace manager |
| { |
| |
| using namespace sdbusplus::xyz::openbmc_project::Common::Error; |
| PHOSPHOR_LOG2_USING; |
| using namespace phosphor::logging; |
| namespace fs = std::filesystem; |
| |
| void Download::downloadViaTFTP(std::string fileName, std::string serverAddress) |
| { |
| using Argument = xyz::openbmc_project::Common::InvalidArgument; |
| |
| // Sanitize the fileName string |
| if (!fileName.empty()) |
| { |
| fileName.erase(std::remove(fileName.begin(), fileName.end(), '/'), |
| fileName.end()); |
| fileName = fileName.substr(fileName.find_first_not_of('.')); |
| } |
| |
| if (fileName.empty()) |
| { |
| error("Filename is empty"); |
| elog<InvalidArgument>(Argument::ARGUMENT_NAME("FileName"), |
| Argument::ARGUMENT_VALUE(fileName.c_str())); |
| return; |
| } |
| |
| if (serverAddress.empty()) |
| { |
| error("ServerAddress is empty"); |
| elog<InvalidArgument>(Argument::ARGUMENT_NAME("ServerAddress"), |
| Argument::ARGUMENT_VALUE(serverAddress.c_str())); |
| return; |
| } |
| |
| info("Downloading {PATH} via TFTP: {SERVERADDRESS}", "PATH", fileName, |
| "SERVERADDRESS", serverAddress); |
| |
| // Check if IMAGE DIR exists |
| fs::path imgDirPath(IMG_UPLOAD_DIR); |
| std::error_code ec; |
| if (!fs::is_directory(imgDirPath, ec)) |
| { |
| error("Image Dir {PATH} does not exist: {ERROR_MSG}", "PATH", |
| imgDirPath, "ERROR_MSG", ec.message()); |
| elog<InternalFailure>(); |
| return; |
| } |
| |
| pid_t pid = fork(); |
| |
| if (pid == 0) |
| { |
| pid_t nextPid = fork(); |
| if (nextPid == 0) |
| { |
| // child process |
| execl("/usr/bin/tftp", "tftp", "-g", "-r", fileName.c_str(), |
| serverAddress.c_str(), "-l", |
| (std::string{IMG_UPLOAD_DIR} + '/' + fileName).c_str(), |
| (char*)0); |
| // execl only returns on fail |
| error("Error ({ERRNO}) occurred during the TFTP call", "ERRNO", |
| errno); |
| elog<InternalFailure>(); |
| } |
| else if (nextPid < 0) |
| { |
| error("Error ({ERRNO}) occurred during fork", "ERRNO", errno); |
| elog<InternalFailure>(); |
| } |
| // do nothing as parent if all is going well |
| // when parent exits, child will be reparented under init |
| // and then be reaped properly |
| exit(0); |
| } |
| else if (pid < 0) |
| { |
| error("Error ({ERRNO}) occurred during fork", "ERRNO", errno); |
| elog<InternalFailure>(); |
| } |
| else |
| { |
| int status; |
| if (waitpid(pid, &status, 0) < 0) |
| { |
| error("Error ({ERRNO}) occurred during waitpid", "ERRNO", errno); |
| } |
| else if (WEXITSTATUS(status) != 0) |
| { |
| |
| error("Failed ({STATUS}) to launch tftp", "STATUS", status); |
| } |
| } |
| |
| return; |
| } |
| |
| } // namespace manager |
| } // namespace software |
| } // namespace phosphor |