Editing SLB2

== Structure ==

[[File:PS4 SLB PUP container format - SKFU.png|thumb|PS4 SLB PUP container format - SKFU]]

<source lang="c">
/* 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));
</source>

== Unpacking ==

* [https://web.archive.org/web/20141023113732/http://pastie.org/private/4wgojewhp2pq7declhkhw pupunpack.py] (flatz)
* [http://www.eurasia.nu/modules.php?name=Downloads&d_op=viewdownloaddetails&lid=10234&ttitle=PS4_PUP_Extractor_v2 PS4 PUP Extractor v2] (xerpi)
* [https://streetskaterfu.blogspot.fr/2013/11/release-ps4-fw-tool-100.html PS4 FW Tool v1.0.0] (skfu)
* [https://github.com/Hykem/ps4tools ps4tools] (hykem, based on flatz)
* [https://github.com/harlequin/ps4tools ps4tools] (harlequin, based on flatz and zecoxao)
* [https://github.com/nikosradio/ps4tools ps4tools] (nikosradio, based on flatz)
* [https://github.com/Keyaku/ps4tools ps4tools] (Keyaku, based on flatz)
* [https://github.com/Jakes625/PS4-PUP-Tool PS4-PUP-Tool] (Jakes625)
* [https://github.com/cfwprpht/PS4_AC1D_Flash-Tool PS4_AC1D_Flash-Tool] (cfwprpht)
* [https://github.com/cfwprpht/Usefull_Libraries/blob/master/SLB2/SLB2/SLB2.cs SLB2 library] (cfwprpht)
* [https://github.com/zecoxao/blsunpack blsunpack] (zecoxao)
* [https://github.com/yifanlu/slb2tools slb2tools] (yifan lu)

== Usage ==

SLB2 files are parsed by many executables:
* PS4 [[Southbridge]] EMC IPL to extract C0028001 and C0020001 (EAP related) from sflash0s0x32b

== Other notes ==
It looks like newer (confirmed for OFW 7.55 and above) SLB2 files have some data between 0x200 and 0x270 which doesn't affect any unpacking tool but affects the unpacking on the PS4. The file gets recognised as corrupted if that data isn't there. This data is present in the `recovery` images but not in the `update` images.
-Other note 
Newer updates seems to have  New data exactly before the start of the PS4UPDATE.PUP file 
It has the same effect as the  one between 0x200 and 0x270
{{Software}}
<noinclude>[[Category:Main]]</noinclude>