1 files changed, 79 insertions, 0 deletions
diff --git a/interfaces/boot/1.2/GptUtils.h b/interfaces/boot/1.2/GptUtils.h
new file mode 100644
index 00000000..a2bed334
--- /dev/null
+++ b/interfaces/boot/1.2/GptUtils.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <map>
+#include <string>
+#include <vector>
+
+namespace android {
+namespace hardware {
+namespace boot {
+namespace V1_2 {
+namespace implementation {
+
+#define GPT_SIGNATURE 0x5452415020494645UL
+
+typedef struct {
+    uint8_t type_guid[16];
+    uint8_t guid[16];
+    uint64_t first_lba;
+    uint64_t last_lba;
+    uint64_t attr;
+    uint16_t name[36];
+} __attribute__((packed)) gpt_entry;
+
+typedef struct {
+    uint64_t signature;
+    uint32_t revision;
+    uint32_t header_size;
+    uint32_t crc32;
+    uint32_t reserved;
+    uint64_t current_lba;
+    uint64_t backup_lba;
+    uint64_t first_usable_lba;
+    uint64_t last_usable_lba;
+    uint8_t disk_guid[16];
+    uint64_t start_lba;
+    uint32_t entry_count;
+    uint32_t entry_size;
+    uint32_t entries_crc32;
+} __attribute__((packed)) gpt_header;
+
+class GptUtils {
+  public:
+    GptUtils(const std::string dev_path);
+    int Load(void);
+    gpt_entry *GetPartitionEntry(std::string name);
+    int Sync(void);
+    ~GptUtils();
+
+  private:
+    std::string dev_path;
+    int fd;
+    uint32_t block_size;
+    gpt_header gpt_primary;
+    gpt_header gpt_backup;
+    std::vector<gpt_entry> entry_array;
+    std::map<std::string, gpt_entry *> entries;
+};
+
+}  // namespace implementation
+}  // namespace V1_2
+}  // namespace boot
+}  // namespace hardware
+}  // namespace android