PLOG(WARNING) << "Unable to rename " << to_fix << " to " << current_path;
}
}
+ android::vold::FsyncDirectory(directory_path);
}
static bool read_and_fixate_user_ce_key(userid_t user_id,
std::string ce_key_path;
if (!get_ce_key_new_path(directory_path, paths, &ce_key_path)) return false;
if (!android::vold::storeKeyAtomically(ce_key_path, user_key_temp, auth, ce_key)) return false;
+ if (!android::vold::FsyncDirectory(directory_path)) return false;
return true;
}
if (!encryptWithoutKeymaster(appId, key, &encryptedKey)) return false;
}
if (!writeStringToFile(encryptedKey, dir + "/" + kFn_encrypted_key)) return false;
+ if (!FsyncDirectory(dir)) return false;
return true;
}
#include <android-base/properties.h>
#include <android-base/strings.h>
#include <android-base/stringprintf.h>
+#include <android-base/unique_fd.h>
#include <cutils/fs.h>
#include <logwrap/logwrap.h>
#include <private/android_filesystem_config.h>
return android::base::GetBoolProperty("ro.kernel.qemu", false);
}
+bool FsyncDirectory(const std::string& dirname) {
+ android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(dirname.c_str(), O_RDONLY | O_CLOEXEC)));
+ if (fd == -1) {
+ PLOG(ERROR) << "Failed to open " << dirname;
+ return false;
+ }
+ if (fsync(fd) == -1) {
+ if (errno == EROFS || errno == EINVAL) {
+ PLOG(WARNING) << "Skip fsync " << dirname
+ << " on a file system does not support synchronization";
+ } else {
+ PLOG(ERROR) << "Failed to fsync " << dirname;
+ return false;
+ }
+ }
+ return true;
+}
+
} // namespace vold
} // namespace android
/* Checks if Android is running in QEMU */
bool IsRunningInEmulator();
+bool FsyncDirectory(const std::string& dirname);
+
} // namespace vold
} // namespace android