ps3_encryption_map.c File Reference

#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "ps3_encryption_map.h"

Go to the source code of this file.

Functions
static uint32_t	read_be32 (const uint8_t *p)
static uint32_t	read_le32 (const uint8_t *p)
static void	write_le32 (uint8_t *p, uint32_t v)
int32_t	ps3_parse_encryption_map (const uint8_t *sector0, uint32_t length, Ps3PlaintextRegion **regions, uint32_t *count)
	Parse the encryption map from PS3 disc sector 0 (big-endian on disc).
int32_t	ps3_serialize_encryption_map (const Ps3PlaintextRegion *regions, uint32_t count, uint8_t **out_data, uint32_t *out_length)
	Serialize plaintext regions to little-endian binary for storage as a media tag.
int32_t	ps3_deserialize_encryption_map (const uint8_t *data, uint32_t length, Ps3PlaintextRegion **regions, uint32_t *count)
	Deserialize plaintext regions from little-endian binary (media tag format).
bool	ps3_is_sector_encrypted (const Ps3PlaintextRegion *plaintext_regions, uint32_t region_count, uint64_t sector_address)
	Check whether a sector is encrypted (i.e., not in any plaintext region).

Function Documentation

ps3_deserialize_encryption_map()

int32_t ps3_deserialize_encryption_map	(	const uint8_t *	data,
		uint32_t	length,
		Ps3PlaintextRegion **	regions,
		uint32_t *	count )

Deserialize plaintext regions from little-endian binary (media tag format).

Parameters

data	Serialized data buffer.
length	Length of data buffer.
regions	Output: allocated array of plaintext regions. Caller must free().
count	Output: number of regions.

Returns

0 on success, negative error code on failure.

Definition at line 117 of file ps3_encryption_map.c.

References Ps3PlaintextRegion::end_sector, PS3_MAX_PLAINTEXT_REGIONS, read_le32(), and Ps3PlaintextRegion::start_sector.

Referenced by ps3_lazy_init().

ps3_is_sector_encrypted()

bool ps3_is_sector_encrypted	(	const Ps3PlaintextRegion *	plaintext_regions,
		uint32_t	region_count,
		uint64_t	sector_address )

Check whether a sector is encrypted (i.e., not in any plaintext region).

Parameters

plaintext_regions	Array of plaintext regions.
region_count	Number of regions.
sector_address	Sector number to check.

Returns

true if the sector is encrypted (not in any plaintext region).

Definition at line 151 of file ps3_encryption_map.c.

Referenced by aaruf_read_sector(), and aaruf_write_sector().

ps3_parse_encryption_map()

int32_t ps3_parse_encryption_map	(	const uint8_t *	sector0,
		uint32_t	length,
		Ps3PlaintextRegion **	regions,
		uint32_t *	count )

Parse the encryption map from PS3 disc sector 0 (big-endian on disc).

Parameters

sector0	Pointer to the 2048-byte sector 0 data.
length	Length of sector0 data (must be >= 264).
regions	Output: allocated array of plaintext regions. Caller must free().
count	Output: number of regions.

Returns

0 on success, negative error code on failure.

Definition at line 48 of file ps3_encryption_map.c.

References Ps3PlaintextRegion::end_sector, PS3_MAX_PLAINTEXT_REGIONS, read_be32(), and Ps3PlaintextRegion::start_sector.

ps3_serialize_encryption_map()

int32_t ps3_serialize_encryption_map	(	const Ps3PlaintextRegion *	regions,
		uint32_t	count,
		uint8_t **	out_data,
		uint32_t *	out_length )

Serialize plaintext regions to little-endian binary for storage as a media tag.

Format: [4B region_count LE] + region_count × [4B start LE, 4B end LE]

Parameters

regions	Array of plaintext regions.
count	Number of regions.
out_data	Output: allocated buffer. Caller must free().
out_length	Output: size of the buffer in bytes.

Returns

0 on success, negative error code on failure.

Definition at line 94 of file ps3_encryption_map.c.

References PS3_MAX_PLAINTEXT_REGIONS, and write_le32().

read_be32()

uint32_t read_be32 ( const uint8_t * p )

static

Definition at line 28 of file ps3_encryption_map.c.

Referenced by ps3_parse_encryption_map().

read_le32()

uint32_t read_le32 ( const uint8_t * p )

static

Definition at line 34 of file ps3_encryption_map.c.

Referenced by ps3_deserialize_encryption_map().

write_le32()

void write_le32 ( uint8_t * p, uint32_t v )

static

Definition at line 40 of file ps3_encryption_map.c.

Referenced by ps3_serialize_encryption_map().