SLB2

Structure

PS4 SLB PUP container format - SKFU

/* SLB2 structure is little endian */
 
struct SceSlb2Entry {
	uint32_t fileStartSector;
	uint32_t fileSizeInByte;
	uint32_t reserved[2]; // padding for alignment
	char     fileName[32];
} __attribute__((packed));
 
struct SceSlb2Header {
	uint32_t magic; // "SLB2"
	uint32_t version; // ex: 1
	uint32_t flags; // ex: 0
	uint32_t entryNum;
	uint32_t sizeInSector;
	uint32_t reserved[3]; // padding for alignment
	struct SceSlb2Entry entryList[0];
} __attribute__((packed));

Unpacking

• pupunpack.py (flatz)
• PS4 PUP Extractor v2 (xerpi)
• PS4 FW Tool v1.0.0 (skfu)
• ps4tools (hykem, based on flatz)
• ps4tools (harlequin, based on flatz and zecoxao)
• ps4tools (nikosradio, based on flatz)
• ps4tools (Keyaku, based on flatz)
• PS4-PUP-Tool (Jakes625)
• PS4_AC1D_Flash-Tool (cfwprpht)
• SLB2 library (cfwprpht)
• blsunpack (zecoxao)
• slb2tools (yifan lu)

Usage

SLB2 files are parsed by many executables:

• PS4 Southbridge EMC IPL to extract C0028001 and C0020001 (EAP related) from sflash0s0x32b