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Line 191: − + − + − + + + + + + + + + + + + + − + − + − + − + − | Padding − |- − | 0x70 − | u64[0x20] Line 222:
Line 239: − + + + Line 241:
Line 260: + + + + + + + + + + + − + + + + + + − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − + − 10001 + − − == 4.1.0 ==
→Versions
| 0x0
| 0x0
| 0x100
| 0x100
| RSA-2048 signature (PKCS#1 v2.1 RSASSA-PSS-VERIFY with SHA256)
| [[#Public Keys|RSA-2048]] signature (PKCS#1 v2.1 RSASSA-PSS-VERIFY with SHA256)
|-
|-
| 0x100
| 0x100
| 0x0
| 0x0
| 0x10
| 0x10
| Decrypted header's CTR
| Header's CTR, official code copies the pre-decryption CTR over the decrypted result. Also used as metadata.
|-
|-
| 0x10
| 0x10
| 0x54
| 0x54
| 0x4
| 0x4
| Unknown
| Base offset
|-
|-
| 0x58
| 0x58
| 0x4
| 0x4
| Unknown
| Always 0
|-
|-
| 0x5C
| 0x5C
| 0x5E
| 0x5E
| 0x2
| 0x2
| ?
| Padding
|-
|-
| 0x60
| 0x60
| 0x70
| 0x70
| 0x4
| 0x4
| Unknown
| Section 0 offset
|-
|-
| 0x74
| 0x74
| 0x4
| 0x4
| Unknown
| Section 1 offset
|-
|-
| 0x78
| 0x78
| 0x4
| 0x4
| Unknown
| Section 2 offset
|-
|-
| 0x7C
| 0x7C
| 0x4
| 0x4
| Unknown
| Section 3 offset
|-
|-
| 0x80
| 0x80
Each section follows each other immediately and is encrypted with the same key used for encrypting the header.
Each section follows each other immediately and is encrypted with the same key used for encrypting the header.
The section offsets are relative to a base, which is typically 0x80000000 pointing to the base of DRAM.
Before being decrypted, the encrypted header's CTR additionally encodes metadata used to validate package2's contents as follows:
* Size of the entire package2 with the raw header = ctr_word2 ^ ctr_word3 ^ ctr_word0
* Metadata version field = ((ctr_word1 ^ (ctr_word1 >> 16)) & 0xFF) ^ (ctr_word1 >> 24)
In [4.0.0], the metadata version field must be less or equal to 4.
== Section 0 ==
== Section 0 ==
== Section 1 ==
== Section 1 ==
When decrypted, this section contains the built-in system modules encapsulated in a custom format.
When decrypted, this section contains the built-in system modules encapsulated in a custom format.
Note: On firmware [[8.0.0]] INI1 is contained within the Kernel and section 1 is empty with NULL SHA256 to match.
=== INI1 ===
=== INI1 ===
| 0x8
| 0x8
| u32
| u32
| NumberProcesses
| NumberProcesses (Must be <0x51)
|-
|-
| 0xC
| 0xC
| u32
| u32
| Zero
| Padding (zero)
|}
|}
==== KIP1 ====
==== KIP1 ====
Kernel internal process?
Kernel Initial Process.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x18
| 0x18
| u32
| u32
|
| Process category (0: regular title, 1: kernel built-in). Should be 1 here.
|-
|-
| 0x1C
| 0x1C
| u32
| u8
| Flags / etc. Byte3 bit0-2: compression-enable for each section, when set.
| Main thread priority
|-
| 0x1D
| u8
| Default CPU core
|-
| 0x1E
| u8
| Reserved (unused)
|-
| 0x1F
| u8
| Flags: bit0-2: compression-enable for each section, when set. Bit3: Is64Bit. Bit4: IsAddrSpace36Bit. Bit5: [2.0.0+] UseSystemPoolPartition (1: System, 0: Application). Bit6, Bit7: reserved (unused)
|-
|-
| 0x20
| 0x20
| [[#SectionHeader]][3]
| [[#SectionHeader]][6]
| Sections
| Sections: .text, .rodata, .data, .bss and two reserved (ignored) sections.
|-
|-
| 0x50
| 0x80
| char[0x20]
| u32[0x20]
| KernelCaps
| KernelCaps
|}
|}
| 0xC
| 0xC
| u32
| u32
|
| Attribute: the size in pages of the main thread's stack for .rodata, reserved otherwise.
|}
|}
Compressed size can be 0 or lower than exepected, this is the case for BSS for example.
===== Compression =====
===== Compression =====
! Package1 minver constant
! Package1 minver constant
! Package2 version field
! Package2 version field
|-
| [[1.0.0]]
| 0x2
| 0x3
| 0x0104
|-
|-
| [[2.0.0]]
| [[2.0.0]]
| 0x3
| 0x3
| 0x4
| 0x4
| 0x0205
|-
| [[3.0.0]]
| 0x4
| 0x5
| 0x0306
|-
|-
| [[4.1.0]]
| [[3.0.2]]
| 0x5
| 0x6
| 0x0407
|-
| [[4.0.0]]
| 0x6
| 0x6
| 0x7
| 0x7
|
| 0x0508
|-
| [[5.0.0]]
| 0x7
| 0x8
| 0x0609
|-
| [[6.0.0]]
| 0x8
| 0x9
| 0x070A
|-
| [[6.2.0]]
| 0x9
| 0xA
| 0x080B
|-
| [[7.0.0]]
| 0xA
| 0xB
| 0x090C
|-
| [[8.1.0]]
| 0xB
| 0xC
| 0x0A0D
|-
| [[9.0.0]]
| 0xC
| 0xD
| 0x0B0E
|-
| [[9.1.0]]
| 0xD
| 0xE
| 0x0C0F
|}
|}
= Public Keys =
= Public Keys =
== Exponent ==
=== Exponent ===
0x10001
=== Retail Modulus ===
=== Retail Modulus ===