SILKPADD
Structure
Header
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000000 53 49 4C 4B 50 41 44 44 00 00 0C 00 00 00 00 00 SILKPADD........
| Offset | Length | Example | Name | Notes |
|---|---|---|---|---|
| 0x00 | 0x04 | 53 49 4C 4B | silk_signature | By now this 2 are represented in wiki separated just incase the format allows for other variants, like SILKFLAT, SILKCRAP, or any other names, but maybe the 8 bytes are processed together |
| 0x04 | 0x04 | 50 41 44 44 | padd_signature | |
| 0x08 | 0x02 | 00 00 | unknown | Always zeroes ? |
| 0x0A | 0x02 | 0C 00 | entry_amount | Number of entries in the file (in little endian) |
| 0x0C | 0x04 | 00 00 00 00 | padding ? | Always zeroes ? |
Index table
The index table starts at offset 0x10, every entry in the index table is 0xC bytes lenght and is composed by 3 values. All values in the index table are in little endian. There is no gap or padding at the end of the index table
Example of the first entry in the index table of CEHtmlApi.bin
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000010 B9 0B 00 00 A0 00 00 00 9B 00 00 00 ¹... ...›...
| Offset | Length | Example | Name | Notes |
|---|---|---|---|---|
| 0x00 | 0x04 | B9 0B 00 00 | entry_id | An unique ID for the entry, used by the web browser to identify and to access the data (in little endian) |
| 0x04 | 0x04 | A0 00 00 00 | data_offset | Absolute offset of the data (in little endian) |
| 0x08 | 0x04 | 9B 00 00 00 | data_lenght | Size of the data (in little endian) |
Data table
At this point is unknown if the PS3 parses every one of the datas in a specific way based on his type because the IDs of them are hardcoded in the .sprx (so the sprx knows what to do with every data before reading it), or the data type is identifyed by reading the first bytes. Anyway, to manage the datas in PC is needed to read the first bytes because in PC we are not using a database with all the IDs (so we dont know what to do with every data entry before reading it)
This identification method (by reading the data itself) is what is explained here in wiki, the order of how are listed the data types in this wiki page is also a suggestion of the order of how the data types checks could be performed
Data types
All data entries starts with 4 bytes + a text string. The first 4 bytes indicates the length of the text string located inmediatly after. So the first bytes that needs to be readed are the 4 bytes + the lenght indicated by that 4 bytes
Text string
This is the most basic example, the entry can be identifyed as a "text string" because is null terminated (note how the text_string_lenght=5 of the example below includes the null byte 0x00 at the end)
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00000000 00 00 00 05 54 65 73 74 00 ....Test.
| Offset | Length | Example | Name | Notes |
|---|---|---|---|---|
| 0x00 | 0x04 | 00 00 00 05 | text_string_lenght | Lenght of the text string + 1 null byte at the end (in big endian) |
| 0x04 | varies | 54 65 73 74 | text_string | A normal text string (starting with random characters that doesnt matches the search patterns for the other data type checks) |
| varies | 0x01 | 00 | null | This is the null termination of the previous string |
HTML (stored as a single text string
The fileformat allows to store HTML files as standard text string data, and are also null terminated (so it falls under the same characteristics as a standard text string). Because this reason, the only way to identify this data type in PC is by reading the first bytes of the string (if it starts with <!DOCTYPE HTML is a HTML)
To extract the data as a HTML file is needed to remove the null byte at the end (and the null byte at the end needs to be added when the HTML file is injected back)
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00000000 00 00 03 A9 3C 21 44 4F 43 54 59 50 45 20 48 54 ...©<!DOCTYPE HT
00000010 4D 4C 20 50 55 42 4C 49 43 20 22 2D 2F 2F 57 33 ML PUBLIC "-//W3
00000020 43 2F 2F 44 54 44 20 48 54 4D 4C 20 34 2E 30 20 C//DTD HTML 4.0
00000030 54 72 61 6E 73 69 74 69 6F 6E 61 6C 2F 2F 45 4E Transitional//EN
00000040 22 3E 0A 09 09 09 09 09 3C 48 54 4D 4C 3E 0A 09 ">......<HTML>..
00000050 09 09 09 09 3C 48 45 41 44 3E 0A 09 09 09 09 09 ....<HEAD>......
00000060 09 3C 73 74 79 6C 65 3E 0A 09 09 09 09 09 09 61 .<style>.......a
00000070 3A 6C 69 6E 6B 09 09 09 7B 66 6F 6E 74 3A 38 70 :link...{font:8p
00000080 74 2F 31 31 70 74 20 76 65 72 64 61 6E 61 3B 20 t/11pt verdana;
00000090 63 6F 6C 6F 72 3A 72 65 64 7D 0A 09 09 09 09 09 color:red}......
000000A0 09 61 3A 76 69 73 69 74 65 64 09 09 7B 66 6F 6E .a:visited..{fon
000000B0 74 3A 38 70 74 2F 31 31 70 74 20 76 65 72 64 61 t:8pt/11pt verda
000000C0 6E 61 3B 20 63 6F 6C 6F 72 3A 23 34 65 34 65 34 na; color:#4e4e4
000000D0 65 7D 0A 09 09 09 09 09 09 3C 2F 73 74 79 6C 65 e}.......</style
000000E0 3E 0A 09 09 09 09 09 09 3C 6D 65 74 61 20 48 54 >.......<meta HT
000000F0 54 50 2D 45 51 55 49 56 3D 22 43 6F 6E 74 65 6E TP-EQUIV="Conten
00000100 74 2D 54 79 70 65 22 20 43 6F 6E 74 65 6E 74 3D t-Type" Content=
00000110 22 74 65 78 74 2D 68 74 6D 6C 3B 20 63 68 61 72 "text-html; char
00000120 73 65 74 3D 57 69 6E 64 6F 77 73 2D 31 32 35 32 set=Windows-1252
00000130 22 3E 0A 09 09 09 09 09 09 3C 74 69 74 6C 65 3E ">.......<title>
00000140 4E 65 74 77 6F 72 6B 20 45 72 72 6F 72 3C 2F 74 Network Error</t
00000150 69 74 6C 65 3E 0A 09 09 09 09 09 3C 2F 48 45 41 itle>......</HEA
00000160 44 3E 0A 0A 09 09 09 09 09 3C 42 4F 44 59 3E 0A D>.......<BODY>.
00000170 09 09 09 09 09 09 3C 54 41 42 4C 45 20 77 69 64 ......<TABLE wid
00000180 74 68 3D 22 34 30 30 22 20 63 65 6C 6C 70 61 64 th="400" cellpad
00000190 64 69 6E 67 3D 22 33 22 20 63 65 6C 6C 73 70 61 ding="3" cellspa
000001A0 63 69 6E 67 3D 22 35 22 3E 0A 09 09 09 09 09 09 cing="5">.......
000001B0 20 20 3C 74 72 3E 0A 09 09 09 09 09 09 09 3C 74 <tr>........<t
000001C0 64 20 69 64 3D 22 74 61 62 6C 65 50 72 6F 70 73 d id="tableProps
000001D0 22 20 76 61 6C 69 67 6E 3D 22 74 6F 70 22 20 61 " valign="top" a
000001E0 6C 69 67 6E 3D 22 6C 65 66 74 22 3E 3C 2F 74 64 lign="left"></td
000001F0 3E 0A 09 09 09 09 09 09 09 3C 74 64 20 69 64 3D >........<td id=
00000200 22 74 61 62 6C 65 50 72 6F 70 73 32 22 20 61 6C "tableProps2" al
00000210 69 67 6E 3D 22 6C 65 66 74 22 20 76 61 6C 69 67 ign="left" valig
00000220 6E 3D 22 6D 69 64 64 6C 65 22 20 77 69 64 74 68 n="middle" width
00000230 3D 22 34 35 30 22 3E 3C 68 31 20 69 64 3D 22 74 ="450"><h1 id="t
00000240 65 78 74 53 65 63 74 69 6F 6E 31 22 0A 09 09 09 extSection1"....
00000250 09 09 09 09 73 74 79 6C 65 3D 22 43 4F 4C 4F 52 ....style="COLOR
00000260 3A 20 62 6C 61 63 6B 3B 20 46 4F 4E 54 3A 20 31 : black; FONT: 1
00000270 38 70 74 20 76 65 72 64 61 6E 61 22 3E 3C 73 70 8pt verdana"><sp
00000280 61 6E 20 69 64 3D 22 65 72 72 6F 72 54 65 78 74 an id="errorText
00000290 22 3E 54 68 65 20 70 61 67 65 20 63 61 6E 6E 6F ">The page canno
000002A0 74 20 62 65 20 64 69 73 70 6C 61 79 65 64 2E 3C t be displayed.<
000002B0 2F 73 70 61 6E 3E 3C 2F 68 31 3E 3C 2F 74 64 3E /span></h1></td>
000002C0 0A 09 09 09 09 09 09 20 20 3C 2F 74 72 3E 0A 09 ....... </tr>..
000002D0 09 09 09 09 09 20 20 3C 74 72 3E 0A 09 09 09 09 ..... <tr>.....
000002E0 09 09 09 3C 74 64 20 69 64 3D 22 74 61 62 6C 65 ...<td id="table
000002F0 50 72 6F 70 73 57 69 64 74 68 22 20 77 69 64 74 PropsWidth" widt
00000300 68 3D 22 34 30 30 22 20 63 6F 6C 73 70 61 6E 3D h="400" colspan=
00000310 22 32 22 3E 3C 66 6F 6E 74 0A 09 09 09 09 09 09 "2"><font.......
00000320 09 73 74 79 6C 65 3D 22 43 4F 4C 4F 52 3A 20 62 .style="COLOR: b
00000330 6C 61 63 6B 3B 20 46 4F 4E 54 3A 20 31 31 70 74 lack; FONT: 11pt
00000340 20 76 65 72 64 61 6E 61 22 3E 0A 09 09 09 09 09 verdana">......
00000350 09 09 4E 65 74 77 6F 72 6B 20 65 72 72 6F 72 20 ..Network error
00000360 6F 63 63 75 72 72 65 64 2E 3C 2F 66 6F 6E 74 3E occurred.</font>
00000370 3C 2F 74 64 3E 0A 09 09 09 09 09 09 20 20 3C 2F </td>....... </
00000380 74 72 3E 0A 09 09 09 09 09 09 3C 2F 54 41 42 4C tr>.......</TABL
00000390 45 3E 0A 09 09 09 09 09 3C 2F 42 4F 44 59 3E 0A E>......</BODY>.
000003A0 09 09 09 09 09 3C 2F 48 54 4D 4C 3E 00 .....</HTML>.
| Offset | Length | Example | Name | Notes |
|---|---|---|---|---|
| 0x00 | 0x04 | 00 00 03 A9 | text_string_lenght | Size of the HTML file + 1 null byte at the end (in big endian) |
| 0x04 | varies | <!DOCTYPE HTML, etc... | text_string | HTML file |
| varies | 0x01 | 00 | null | This is the null termination at the end of the HTML file (needed to be removes to extract the data as a HTML file) |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
