Add KeyManagedEncryptedEnv and AESBlockCipher (facebook#151)

Summary: Introduce `KeyManagedEncryptedEnv` which wraps around `EncryptedEnv` but provides an `KeyManager` API to enable key management per file. Also implements `AESBlockCipher` with OpenSSL. Test Plan: not tested yet. will update. Signed-off-by: Yi Wu <[email protected]> Signed-off-by: tabokie <[email protected]>
pegasus-kv · Aug 1, 2023 · f0c7d77 · f0c7d77
1 parent e95d27f
commit f0c7d77
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Showing 15 changed files with 769 additions and 11 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -70,6 +70,7 @@ option(WITH_SNAPPY "build with SNAPPY" OFF)
 option(WITH_LZ4 "build with lz4" OFF)
 option(WITH_ZLIB "build with zlib" OFF)
 option(WITH_ZSTD "build with zstd" OFF)
+option(WITH_OPENSSL "build with openssl" OFF)
 option(WITH_WINDOWS_UTF8_FILENAMES "use UTF8 as characterset for opening files, regardles of the system code page" OFF)
 if (WITH_WINDOWS_UTF8_FILENAMES)
   add_definitions(-DROCKSDB_WINDOWS_UTF8_FILENAMES)
@@ -174,6 +175,14 @@ else()
     include_directories(${ZSTD_INCLUDE_DIR})
     list(APPEND THIRDPARTY_LIBS zstd::zstd)
   endif()
+
+  if(WITH_OPENSSL)
+    find_package(OpenSSL REQUIRED)
+    add_definitions(-DOPENSSL)
+    include_directories(${OPENSSL_INCLUDE_DIR})
+    # Only the crypto library is needed.
+    list(APPEND THIRDPARTY_LIBS ${OPENSSL_CRYPTO_LIBRARIES})
+  endif()
 endif()
 
 option(WITH_MD_LIBRARY "build with MD" ON)
@@ -736,6 +745,7 @@ set(SOURCES
         db/write_controller.cc
         db/write_stall_stats.cc
         db/write_thread.cc
+        encryption/encryption.cc
         env/composite_env.cc
         env/env.cc
         env/env_chroot.cc

diff --git a/TARGETS b/TARGETS
@@ -108,6 +108,7 @@ cpp_library_wrapper(name="rocksdb_lib", srcs=[
         "db/write_controller.cc",
         "db/write_stall_stats.cc",
         "db/write_thread.cc",
+        "encryption/encryption.cc",
         "env/composite_env.cc",
         "env/env.cc",
         "env/env_chroot.cc",

diff --git a/build_tools/build_detect_platform b/build_tools/build_detect_platform
@@ -478,6 +478,19 @@ EOF
         fi
     fi
 
+    if ! test $ROCKSDB_DISABLE_OPENSSL; then
+        # Test whether OpenSSL library is installed
+        $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
+          #include <openssl/crypto.h>
+          int main() {}
+EOF
+        if [ "$?" = 0 ]; then
+            COMMON_FLAGS="$COMMON_FLAGS -DOPENSSL"
+            PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lcrypto"
+            JAVA_LDFLAGS="$JAVA_LDFLAGS -lcrypto"
+        fi
+    fi
+
     if ! test $ROCKSDB_DISABLE_PTHREAD_MUTEX_ADAPTIVE_NP; then
         # Test whether PTHREAD_MUTEX_ADAPTIVE_NP mutex type is available
         $CXX $PLATFORM_CXXFLAGS -x c++ - -o test.o 2>/dev/null  <<EOF

diff --git a/db/db_options_test.cc b/db/db_options_test.cc
@@ -1058,10 +1058,11 @@ TEST_F(DBOptionsTest, CompactionReadaheadSizeChange) {
 }
 
 TEST_F(DBOptionsTest, FIFOTtlBackwardCompatible) {
-  Options options;
+  Options options = CurrentOptions();
   options.compaction_style = kCompactionStyleFIFO;
   options.write_buffer_size = 10 << 10;  // 10KB
   options.create_if_missing = true;
+  options.max_open_files = -1;
   options.env = CurrentOptions().env;
   options.num_levels = 1;
 

diff --git a/db/db_properties_test.cc b/db/db_properties_test.cc
@@ -1897,7 +1897,7 @@ TEST_F(DBPropertiesTest, BlobCacheProperties) {
 }
 
 TEST_F(DBPropertiesTest, BlockCacheProperties) {
-  Options options;
+  Options options = CurrentOptions();
   uint64_t value;
 
   options.env = CurrentOptions().env;

diff --git a/db/db_test2.cc b/db/db_test2.cc
@@ -2735,6 +2735,9 @@ TEST_F(DBTest2, ReadAmpBitmap) {
 
 #ifndef OS_SOLARIS  // GetUniqueIdFromFile is not implemented
 TEST_F(DBTest2, ReadAmpBitmapLiveInCacheAfterDBClose) {
+  if (getenv("ENCRYPTED_ENV")) {
+    return;
+  }
   {
     const int kIdBufLen = 100;
     char id_buf[kIdBufLen];

diff --git a/db/db_test_util.cc b/db/db_test_util.cc
@@ -31,6 +31,14 @@ int64_t MaybeCurrentTime(Env* env) {
 }
 }  // anonymous namespace
 
+#ifdef OPENSSL
+const std::string TestKeyManager::default_key =
+    "\x12\x34\x56\x78\x12\x34\x56\x78\x12\x34\x56\x78\x12\x34\x56\x78\x12\x34"
+    "\x56\x78\x12\x34\x56\x78";
+const std::string TestKeyManager::default_iv =
+    "\xaa\xbb\xcc\xdd\xaa\xbb\xcc\xdd\xaa\xbb\xcc\xdd\xaa\xbb\xcc\xdd";
+#endif
+
 // Special Env used to delay background operations
 
 SpecialEnv::SpecialEnv(Env* base, bool time_elapse_only_sleep)
@@ -71,15 +79,13 @@ DBTestBase::DBTestBase(const std::string path, bool env_do_fsync)
     mem_env_ = MockEnv::Create(base_env, base_env->GetSystemClock());
   }
   if (getenv("ENCRYPTED_ENV")) {
-    std::shared_ptr<EncryptionProvider> provider;
-    std::string provider_id = getenv("ENCRYPTED_ENV");
-    if (provider_id.find("=") == std::string::npos &&
-        !EndsWith(provider_id, "://test")) {
-      provider_id = provider_id + "://test";
-    }
-    EXPECT_OK(EncryptionProvider::CreateFromString(ConfigOptions(), provider_id,
-                                                   &provider));
-    encrypted_env_ = NewEncryptedEnv(mem_env_ ? mem_env_ : base_env, provider);
+#ifdef OPENSSL
+    std::shared_ptr<encryption::KeyManager> key_manager(new TestKeyManager);
+    encrypted_env_ = NewKeyManagedEncryptedEnv(Env::Default(), key_manager);
+#else
+    fprintf(stderr, "EncryptedEnv is not available without OpenSSL.");
+    assert(false);
+#endif
   }
   env_ = new SpecialEnv(encrypted_env_ ? encrypted_env_
                                        : (mem_env_ ? mem_env_ : base_env));

diff --git a/db/db_test_util.h b/db/db_test_util.h
@@ -29,6 +29,7 @@
 #include "rocksdb/compaction_filter.h"
 #include "rocksdb/convenience.h"
 #include "rocksdb/db.h"
+#include "rocksdb/encryption.h"
 #include "rocksdb/env.h"
 #include "rocksdb/file_system.h"
 #include "rocksdb/filter_policy.h"
@@ -55,6 +56,41 @@
 namespace ROCKSDB_NAMESPACE {
 class MockEnv;
 
+// TODO(yiwu): Use InMemoryKeyManager instead for tests.
+#ifdef OPENSSL
+class TestKeyManager : public encryption::KeyManager {
+ public:
+  virtual ~TestKeyManager() = default;
+
+  static const std::string default_key;
+  static const std::string default_iv;
+
+  Status GetFile(const std::string& /*fname*/,
+                 encryption::FileEncryptionInfo* file_info) override {
+    file_info->method = encryption::EncryptionMethod::kAES192_CTR;
+    file_info->key = default_key;
+    file_info->iv = default_iv;
+    return Status::OK();
+  }
+
+  Status NewFile(const std::string& /*fname*/,
+                 encryption::FileEncryptionInfo* file_info) override {
+    file_info->method = encryption::EncryptionMethod::kAES192_CTR;
+    file_info->key = default_key;
+    file_info->iv = default_iv;
+    return Status::OK();
+  }
+
+  Status DeleteFile(const std::string&) override { return Status::OK(); }
+  Status LinkFile(const std::string&, const std::string&) override {
+    return Status::OK();
+  }
+  Status RenameFile(const std::string&, const std::string&) override {
+    return Status::OK();
+  }
+};
+#endif
+
 namespace anon {
 class AtomicCounter {
  public:

diff --git a/db/db_wal_test.cc b/db/db_wal_test.cc
@@ -1431,6 +1431,9 @@ INSTANTIATE_TEST_CASE_P(
 // at the end of any of the logs
 // - We do not expect to open the data store for corruption
 TEST_P(DBWALTestWithParams, kTolerateCorruptedTailRecords) {
+  if (getenv("ENCRYPTED_ENV")) {
+    return;
+  }
   bool trunc = std::get<0>(GetParam());  // Corruption style
   // Corruption offset position
   int corrupt_offset = std::get<1>(GetParam());
@@ -1493,6 +1496,9 @@ TEST_P(DBWALTestWithParams, kAbsoluteConsistency) {
 // We don't expect the data store to be opened if there is any inconsistency
 // between WAL and SST files
 TEST_F(DBWALTest, kPointInTimeRecoveryCFConsistency) {
+  if (getenv("ENCRYPTED_ENV")) {
+    return;
+  }
   Options options = CurrentOptions();
   options.avoid_flush_during_recovery = true;
 
@@ -1700,6 +1706,9 @@ TEST_F(DBWALTest, FixSyncWalOnObseletedWalWithNewManifestCausingMissingWAL) {
 // - We expect to open data store under all circumstances
 // - We expect only data upto the point where the first error was encountered
 TEST_P(DBWALTestWithParams, kPointInTimeRecovery) {
+  if (getenv("ENCRYPTED_ENV")) {
+    return;
+  }
   const int maxkeys =
       RecoveryTestHelper::kWALFilesCount * RecoveryTestHelper::kKeysPerWALFile;
 
@@ -1760,6 +1769,9 @@ TEST_P(DBWALTestWithParams, kPointInTimeRecovery) {
 // - We expect to open the data store under all scenarios
 // - We expect to have recovered records past the corruption zone
 TEST_P(DBWALTestWithParams, kSkipAnyCorruptedRecords) {
+  if (getenv("ENCRYPTED_ENV")) {
+    return;
+  }
   bool trunc = std::get<0>(GetParam());  // Corruption style
   // Corruption offset position
   int corrupt_offset = std::get<1>(GetParam());
@@ -1969,6 +1981,9 @@ TEST_F(DBWALTest, RecoverWithoutFlushMultipleCF) {
 //   4. Open again. See if it can correctly handle previous corruption.
 TEST_P(DBWALTestWithParamsVaryingRecoveryMode,
        RecoverFromCorruptedWALWithoutFlush) {
+  if (getenv("ENCRYPTED_ENV")) {
+    return;
+  }
   const int kAppendKeys = 100;
   Options options = CurrentOptions();
   options.avoid_flush_during_recovery = true;