shithub: lwext4

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ext4_mbr: Added "disk_id" parameter to MBR creation function

--- a/include/ext4_mbr.h

+++ b/include/ext4_mbr.h

@@ -60,7 +60,7 @@

 	uint8_t division[4];

 };

-int ext4_mbr_write(struct ext4_blockdev *parent, struct ext4_mbr_parts *parts);

+int ext4_mbr_write(struct ext4_blockdev *parent, struct ext4_mbr_parts *parts, uint32_t disk_id);

 #ifdef __cplusplus

 }

--- a/src/ext4_mbr.c

+++ b/src/ext4_mbr.c

@@ -59,7 +59,8 @@

 };

 struct ext4_mbr {

-	uint8_t bootstrap[446];

+	uint8_t bootstrap[442];

+	uint32_t disk_id;

 	struct ext4_part_entry part_entry[4];

 	uint16_t signature;

 };

@@ -126,7 +127,7 @@

 	return r;

 }

-int ext4_mbr_write(struct ext4_blockdev *parent, struct ext4_mbr_parts *parts)

+int ext4_mbr_write(struct ext4_blockdev *parent, struct ext4_mbr_parts *parts, uint32_t disk_id)

 {

 	int r;

 	uint64_t disk_size = parent->part_size;

@@ -155,6 +156,7 @@

 	struct ext4_mbr *mbr = (void *)parent->bdif->ph_bbuf;

 	memset(mbr, 0, sizeof(struct ext4_mbr));

+	mbr->disk_id = disk_id;

 	uint32_t cyl_it = 0;

 	for (int i = 0; i < 4; ++i) {