basic gpt support

Signed-off-by: Anna (navi) Figueiredo Gomes <navi@vlhl.dev>

1 files changed, 40 insertions, 0 deletions

diff --git a/include/fs/gpt.h b/include/fs/gpt.h
new file mode 100644
index 0000000..a1a8356
--- /dev/null
+++ b/include/fs/gpt.h
@@ -0,0 +1,40 @@
+#ifndef _GPT_H_
+#define _GPT_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+struct gpt_header {
+	char sig[8];
+	uint32_t revision;
+	uint32_t size;
+	uint32_t crc32;
+	uint32_t res;
+	uint64_t lba;
+	uint64_t lba_mirror;
+	uint64_t first_block;
+	uint64_t last_block;
+	uint8_t guid[16];
+	uint64_t first_lba;
+	uint32_t number_partitions;
+	uint32_t size_partitions;
+	uint32_t crc32_entry;
+};
+
+struct gpt_entry {
+	uint8_t type[16];
+	uint8_t guid[16];
+	struct {
+	uint64_t start;
+	uint64_t end;
+	} lba;
+	uint64_t attrs;
+	char name[72];
+};
+
+struct disk;
+struct gpt_header *read_gpt_disk(struct disk *disk);
+struct gpt_entry *get_gpt_entry(struct disk *disk, struct gpt_header *header, size_t num);
+char *read_gpt_entry(struct disk *disk, struct gpt_entry *entry);
+
+#endif