58 lines
		
	
	
	
		
			1.1 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			58 lines
		
	
	
	
		
			1.1 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
|   | /*
 | ||
|  |  *  fs/partitions/karma.c | ||
|  |  *  Rio Karma partition info. | ||
|  |  * | ||
|  |  *  Copyright (C) 2006 Bob Copeland (me@bobcopeland.com) | ||
|  |  *  based on osf.c | ||
|  |  */ | ||
|  | 
 | ||
|  | #include "check.h"
 | ||
|  | #include "karma.h"
 | ||
|  | 
 | ||
|  | int karma_partition(struct parsed_partitions *state, struct block_device *bdev) | ||
|  | { | ||
|  | 	int i; | ||
|  | 	int slot = 1; | ||
|  | 	Sector sect; | ||
|  | 	unsigned char *data; | ||
|  | 	struct disklabel { | ||
|  | 		u8 d_reserved[270]; | ||
|  | 		struct d_partition { | ||
|  | 			__le32 p_res; | ||
|  | 			u8 p_fstype; | ||
|  | 			u8 p_res2[3]; | ||
|  | 			__le32 p_offset; | ||
|  | 			__le32 p_size; | ||
|  | 		} d_partitions[2]; | ||
|  | 		u8 d_blank[208]; | ||
|  | 		__le16 d_magic; | ||
|  | 	} __attribute__((packed)) *label; | ||
|  | 	struct d_partition *p; | ||
|  | 
 | ||
|  | 	data = read_dev_sector(bdev, 0, §); | ||
|  | 	if (!data) | ||
|  | 		return -1; | ||
|  | 
 | ||
|  | 	label = (struct disklabel *)data; | ||
|  | 	if (le16_to_cpu(label->d_magic) != KARMA_LABEL_MAGIC) { | ||
|  | 		put_dev_sector(sect); | ||
|  | 		return 0; | ||
|  | 	} | ||
|  | 
 | ||
|  | 	p = label->d_partitions; | ||
|  | 	for (i = 0 ; i < 2; i++, p++) { | ||
|  | 		if (slot == state->limit) | ||
|  | 			break; | ||
|  | 
 | ||
|  | 		if (p->p_fstype == 0x4d && le32_to_cpu(p->p_size)) { | ||
|  | 			put_partition(state, slot, le32_to_cpu(p->p_offset), | ||
|  | 				le32_to_cpu(p->p_size)); | ||
|  | 		} | ||
|  | 		slot++; | ||
|  | 	} | ||
|  | 	printk("\n"); | ||
|  | 	put_dev_sector(sect); | ||
|  | 	return 1; | ||
|  | } | ||
|  | 
 |