| #include <string> |
| #include <experimental/filesystem> |
| #include <stdlib.h> |
| #include <cstring> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <sys/wait.h> |
| #include <sys/stat.h> |
| #include <phosphor-logging/log.hpp> |
| #include "config.h" |
| #include "version.hpp" |
| #include "image_manager.hpp" |
| |
| namespace phosphor |
| { |
| namespace software |
| { |
| namespace manager |
| { |
| |
| using namespace phosphor::logging; |
| namespace fs = std::experimental::filesystem; |
| |
| struct RemovablePath |
| { |
| fs::path path; |
| |
| RemovablePath(const fs::path& path) : path(path) {} |
| ~RemovablePath() |
| { |
| fs::remove_all(path); |
| } |
| }; |
| |
| int processImage(const std::string& tarFilePath) |
| { |
| if (!fs::is_regular_file(tarFilePath)) |
| { |
| log<level::ERR>("Error tarball does not exist", |
| entry("FILENAME=%s", tarFilePath)); |
| return -1; |
| |
| } |
| RemovablePath tarPathRemove(tarFilePath); |
| fs::path tmpDirPath(std::string{IMG_UPLOAD_DIR}); |
| tmpDirPath /= "imageXXXXXX"; |
| |
| // Need tmp dir to write MANIFEST file to. |
| if (!mkdtemp(const_cast<char*>(tmpDirPath.c_str()))) |
| { |
| log<level::ERR>("Error occured during mkdtemp", |
| entry("ERRNO=%d", errno)); |
| return -1; |
| } |
| |
| RemovablePath tmpDirRemove(tmpDirPath); |
| fs::path manifestPath = tmpDirPath; |
| manifestPath /= MANIFEST_FILE_NAME; |
| int status = 0; |
| pid_t pid = fork(); |
| |
| // Get the MANIFEST FILE |
| if (pid == 0) |
| { |
| // child process |
| execl("/bin/tar", "tar", "-xf", tarFilePath.c_str(), MANIFEST_FILE_NAME, |
| "-C", tmpDirPath.c_str(), (char*)0); |
| // execl only returns on fail |
| log<level::ERR>("Failed to untar file", |
| entry("FILENAME=%s", tarFilePath)); |
| return -1; |
| } |
| else if (pid > 0) |
| { |
| waitpid(pid, &status, 0); |
| } |
| else |
| { |
| log<level::ERR>("fork() failed."); |
| return -1; |
| } |
| |
| // Verify the manifest file |
| if (!fs::is_regular_file(manifestPath)) |
| { |
| log<level::ERR>("Error No manifest file"); |
| return -1; |
| } |
| |
| // Get version |
| auto version = Version::getValue(manifestPath.string(), "version"); |
| if (version.empty()) |
| { |
| log<level::ERR>("Error unable to read version from manifest file"); |
| return -1; |
| } |
| |
| // Compute id |
| auto id = Version::getId(version); |
| |
| fs::path imageDirPath = std::string{IMG_UPLOAD_DIR}; |
| imageDirPath /= id; |
| |
| if (mkdir(imageDirPath.c_str(), S_IRWXU) != 0) |
| { |
| log<level::ERR>("Error occured during mkdir", |
| entry("ERRNO=%d", errno)); |
| return -1; |
| } |
| |
| // Untar tarball |
| auto rc = unTar(tarFilePath, imageDirPath.string()); |
| if (rc < 0) |
| { |
| log<level::ERR>("Error occured during untar"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int unTar(const std::string& tarFilePath, const std::string& extractDirPath) |
| { |
| if (tarFilePath.empty()) |
| { |
| log<level::ERR>("Error TarFilePath is empty"); |
| return -1; |
| } |
| if (extractDirPath.empty()) |
| { |
| log<level::ERR>("Error ExtractDirPath is empty"); |
| return -1; |
| } |
| |
| log<level::INFO>("Untaring", |
| entry("FILENAME=%s", tarFilePath), |
| entry("EXTRACTIONDIR=%s", extractDirPath)); |
| int status = 0; |
| pid_t pid = fork(); |
| |
| if (pid == 0) |
| { |
| // child process |
| execl("/bin/tar", "tar", "-xf", tarFilePath.c_str(), |
| "-C", extractDirPath.c_str(), (char*)0); |
| // execl only returns on fail |
| log<level::ERR>("Failed to untar file", |
| entry("FILENAME=%s", tarFilePath)); |
| return -1; |
| } |
| else if (pid > 0) |
| { |
| waitpid(pid, &status, 0); |
| } |
| else |
| { |
| log<level::ERR>("fork() failed."); |
| return -1; |
| } |
| |
| return 0; |
| } |
| } // namespace manager |
| } // namespace software |
| } // namepsace phosphor |