feat: block partition support

[lunaix-os.git] / lunaix-os / includes / lunaix / blkpart_gpt.h

diff --git a/lunaix-os/includes/lunaix/blkpart_gpt.h b/lunaix-os/includes/lunaix/blkpart_gpt.h
new file mode 100644 (file)
index 0000000..fdce191
--- /dev/null
+++ b/lunaix-os/includes/lunaix/blkpart_gpt.h
@@ -0,0 +1,49 @@
+/**
+ * @file blkpart_gpt.h
+ * @author Lunaixsky (lunaxisky@qq.com)
+ * @brief The GUID Partition Table (GPT)
+ * @version 0.1
+ * @date 2022-11-09
+ *
+ * @copyright Copyright (c) 2022
+ *
+ */
+#ifndef __LUNAIX_BLKPART_GPT_H
+#define __LUNAIX_BLKPART_GPT_H
+
+#include <lunaix/device.h>
+#include <lunaix/types.h>
+
+struct gpt_header
+{
+    u8_t signature[8];
+    u32_t rev;
+    u32_t hdr_size;
+    u32_t hdr_cksum;
+    u32_t reserved1;
+    u64_t hdr_lba;
+    u64_t hdr_backup_lba;
+    u64_t lba_start;
+    u64_t lba_end;
+    u8_t guid[16];
+    u64_t ents_lba;
+    u32_t ents_len;
+    u32_t ent_size;
+    u32_t ent_cksum;
+    // reserved start here
+} PACKED;
+
+struct gpt_entry
+{
+    u8_t pguid[16];
+    u8_t uguid[16];
+    u64_t start_lba;
+    u64_t end_lba;
+    u64_t attr_flags;
+    char name[72];
+} PACKED;
+
+int
+blkpart_probegpt(struct device* master);
+
+#endif /* __LUNAIX_BLKPART_GPT_H */