SSL services

ssl

This is "nn::ssl::sf::ISslService". sdknso uses SessionManager with this, where the additional session-count is user-specified (default is 0x2). An error is thrown when the input value is less than 1 or >4.

Cmd	Name
0	#CreateContext
1	#GetContextCount
2	#GetCertificates
3	#GetCertificateBufSize
4	[3.0.0+] #DebugIoctl
5	[3.0.0+] #SetInterfaceVersion
6	[5.0.0+] #FlushSessionCache
7	[6.0.0+] #SetDebugOption
8	[6.0.0+] #GetDebugOption

CreateContext

Takes a PID, an input u32 #SslVersion, an input u64 pid_placeholder, and returns an output #ISslContext.

GetContextCount

No input, returns an output u32.

This is not exposed by sdknso.

GetCertificates

Takes a type-0x6 output buffer and a type-0x5 input buffer containing an array of #CaCertificateId.

[3.0.0+] This now returns an output u32 for actual total output entries.

The output buffer starts with an array of #BuiltInCertificateInfo, with the DER cert data following afterwards.

GetCertificateBufSize

Takes a type-0x5 input buffer containing an array of #CaCertificateId, returns an output u32 for the size to use with #GetCertificates.

DebugIoctl

Stubbed on retail, just returns an error.

SetInterfaceVersion

Takes an input u32 version, no output.

Used by user-processes during service init.

Value	SystemVersion
0x1	[3.0.0+]
0x2	[5.0.0+]
0x3	[6.0.0+]

FlushSessionCache

Takes a type-0x5 input buffer, an input u32 #FlushSessionCacheOptionType, returns an output u32.

The input buffer contains a NUL-terminated string, which is only used when the type is value 0. For type 1, an empty buffer is passed (addr=NULL/size=0).

SetDebugOption

Takes an input u32 #DebugOptionType and a type-0x5 input buffer, no output.

The input u32 value must be 0, and the buffer addr/size must not be 0.

The u8 at buf+0 is copied to state.

The nn::ssl::SetDebugOption func in sdknso just verifies the input and that the service is initialized, without actually using the cmd.

GetDebugOption

Takes an input u32 #DebugOptionType and a type-0x6 output buffer.

Same as #SetDebugOption except this copies state to the buffer instead.

ISslContext

This is "nn::ssl::sf::ISslContext".

Cmd	Name
0	#SetOption
1	#GetOption
2	#CreateConnection
3	#GetConnectionCount
4	#ImportServerPki
5	#ImportClientPki
6	#RemoveServerPki
7	#RemoveClientPki
8	#RegisterInternalPki
9	#AddPolicyOid
10	[3.0.0+] #ImportCrl
11	[3.0.0+] #RemoveCrl

SetOption

Takes an input #ContextOption and an input s32, no output.

With #ContextOption value 1, the s32 has to be 0 or 1 (state field is set to the s32 value).

Prior to 4.x this is stubbed.

GetOption

Takes an input #ContextOption, returns an output s32.

Prior to 4.x this is stubbed.

CreateConnection

No input, returns an #ISslConnection.

GetConnectionCount

No input, returns an output u32.

This is not exposed by sdknso.

ImportServerPki

Takes a type-0x5 input buffer and a #CertificateFormat, returns an output u64.

ImportClientPki

Takes two type-0x5 input buffers, returns an output u64.

RemoveServerPki

Takes an input u64, no output.

RemoveClientPki

Takes an input u64, no output.

RegisterInternalPki

Takes an input #InternalPki, returns an output u64.

AddPolicyOid

Takes a type-0x5 input buffer, no output.

The buffer contains a string. The string length must not match the buffer size, and the string length must be <=0xFE.

ImportCrl

Takes a type-0x5 input buffer, returns an output u64.

RemoveCrl

Takes an input u64, no output.

ISslConnection

This is "nn::ssl::sf::ISslConnection".

Cmd	Name
0	#SetSocketDescriptor
1	#SetHostName
2	#SetVerifyOption
3	#SetIoMode
4	#GetSocketDescriptor
5	#GetHostName
6	#GetVerifyOption
7	#GetIoMode
8	#DoHandshake
9	#DoHandshakeGetServerCert
10	#Read
11	#Write
12	#Pending
13	#Peek
14	#Poll
15	#GetVerifyCertError
16	#GetNeededServerCertBufferSize
17	#SetSessionCacheMode
18	#GetSessionCacheMode
19	#FlushSessionCache
20	#SetRenegotiationMode
21	#GetRenegotiationMode
22	SetOption
23	GetOption
24	#GetVerifyCertErrors
25	[4.0.0+] #GetCipherInfo
26	[9.0.0+] #SetNextAlpnProto
27	[9.0.0+] #GetNextAlpnProto

SetSocketDescriptor

Takes an input s32 sockfd, returns an output s32 sockfd.

The input sockfd is used with DuplicateSocket, with the output sockfd from that being written into state. If the field which would be used for the input u64 is zero however, it instead uses the input sockfd directly and returns -1 for the sockfd. An error is thrown if DuplicateSocket fails. When DuplicateSocket is successful, the input sockfd is returned as the output sockfd, however if DoNotCloseSocket is set it will instead return -1 for the sockfd.

Immediately prior to closing the #ISslConnection object, sdknso will close the sockfd which was returned by this cmd if it is not negative.

SetHostName

Takes a type-0x5 input buffer, no output.

The input buffer contains a string, the buffer size must be <=0xFF.

The buffer is copied to a tmpbuf, then nsd ResolveEx is used with this tmpbuf to set the HostName in state.

SetVerifyOption

Takes an input u32 #VerifyOption, no output.

SetIoMode

Takes an input #IoMode, no output.

GetSocketDescriptor

No input, returns an output s32.

GetHostName

Takes a type-0x6 output buffer, returns an output u32.

The output u32 is the string length (buffer must be large enough for the entire string).

GetVerifyOption

No input, returns an output u32 #VerifyOption.

GetIoMode

No input, returns an output #IoMode.

DoHandshake

No input/output.

DoHandshakeGetServerCert

Takes a type-0x6 output buffer, returns two output u32s.

Read

Takes a type-0x6 output buffer, returns an output u32.

Write

Takes a type-0x5 input buffer, returns an output u32.

Pending

No input, returns an output s32.

Peek

Takes a type-0x6 output buffer, returns an output u32.

Poll

Takes an input #PollEvent, an u32, returns an output #PollEvent.

GetVerifyCertError

No input/output.

GetNeededServerCertBufferSize

No input, returns an output u32.

SetSessionCacheMode

Takes an input #SessionCacheMode, no output.

GetSessionCacheMode

No input, returns an output #SessionCacheMode.

FlushSessionCache

No input/output.

SetRenegotiationMode

Takes an input #RenegotiationMode, no output.

GetRenegotiationMode

No input, returns an output #RenegotiationMode.

SetOption

Takes an input u8 bool and an #OptionType, no output.

GetOption

Takes an input #OptionType, returns an output u8 bool.

GetVerifyCertErrors

Takes a type-0x6 output buffer, returns two output u32s.

GetCipherInfo

Takes an input u32 and a type-0x6 output buffer.

sdknso uses hard-coded value 0x1 for the u32. The output buffer contains #CipherInfo.

Errors are thrown if the input u32 doesn't match 0x1, or if the buffer size doesn't match the size for #CipherInfo.

SetNextAlpnProto

Takes a type-0x5 input buffer, no output.

GetNextAlpnProto

Takes a type-0x6 output buffer, returns an output #AlpnProtoState and an output u32.

SslVersion

This is "nn::ssl::sf::SslVersion" or "nn::ssl::Context::SslVersion".

Value	Description
0x1	Auto
0x8	TlsV10
0x10	TlsV11
0x20	TlsV12

DebugOptionType

This is "nn::ssl::sf::DebugOptionType" or "nn::ssl::DebugOption".

Value	Description
0	AllowDisableVerifyOption

FlushSessionCacheOptionType

This is "nn::ssl::sf::FlushSessionCacheOptionType" or "nn::ssl::FlushSessionCacheOptionType".

Value	Description
0	SingleHost
1	AllHosts

BuiltInCertificateInfo

This is "nn::ssl::BuiltInManager::BuiltInCertificateInfo".

Offset	Size	Description
0x0	0x4	#CaCertificateId
0x4	0x4	#TrustedCertStatus
0x8	0x8	CertificateSize
0x10	0x8	CertificateDataOffset

This is the struct returned by #GetCertificates. It is internally converted from "nn::ssl::detail::BuiltinDataInfo" by copying "nn::ssl::detail::BuiltinDataInfo::BuiltinDataStatus" into #TrustedCertStatus and official software then further converts this to "nn::ssl::BuiltInManager::BuiltInCertificateInfo" by transforming "CertificateDataOffset" into an actual pointer.

TrustedCertStatus

This is "nn::ssl::TrustedCertStatus".

Value	Description
-1	Invalid
0	Removed
1	EnabledTrusted
2	EnabledNotTrusted
3	Revoked

CaCertificateId

This is "nn::ssl::CaCertificateId".

Value	Description
-1	All
1	NintendoCAG3
2	NintendoClass2CAG3
1000	AmazonRootCA1
1001	StarfieldServicesRootCertificateAuthorityG2
1002	AddTrustExternalCARoot
1003	COMODOCertificationAuthority
1004	UTNDATACorpSGC
1005	UTNUSERFirstHardware
1006	BaltimoreCyberTrustRoot
1007	CybertrustGlobalRoot
1008	VerizonGlobalRootCA
1009	DigiCertAssuredIDRootCA
1010	DigiCertAssuredIDRootG2
1011	DigiCertGlobalRootCA
1012	DigiCertGlobalRootG2
1013	DigiCertHighAssuranceEVRootCA
1014	EntrustnetCertificationAuthority2048
1015	EntrustRootCertificationAuthority
1016	EntrustRootCertificationAuthorityG2
1017	GeoTrustGlobalCA2
1018	GeoTrustGlobalCA
1019	GeoTrustPrimaryCertificationAuthorityG3
1020	GeoTrustPrimaryCertificationAuthority
1021	GlobalSignRootCA
1022	GlobalSignRootCAR2
1023	GlobalSignRootCAR3
1024	GoDaddyClass2CertificationAuthority
1025	GoDaddyRootCertificateAuthorityG2
1026	StarfieldClass2CertificationAuthority
1027	StarfieldRootCertificateAuthorityG2
1028	thawtePrimaryRootCAG3
1029	thawtePrimaryRootCA
1030	VeriSignClass3PublicPrimaryCertificationAuthorityG3
1031	VeriSignClass3PublicPrimaryCertificationAuthorityG5
1032	VeriSignUniversalRootCertificationAuthority
1033	DSTRootCAX3

InternalPki

This is "nn::ssl::sf::InternalPki" or "nn::ssl::Context::InternalPki".

Value	Description
0	None
1	DeviceClientCertDefault

An error is thrown by #RegisterInternalPki when the input value does not match "DeviceClientCertDefault".

ContextOption

This is "nn::ssl::sf::ContextOption" or "nn::ssl::Context::ContextOption".

Value	Description
0	None
1	CrlImportDateCheckEnable

CertificateFormat

This is "nn::ssl::sf::CertificateFormat" or "nn::ssl::CertificateFormat".

Value	Description
1	Pem
2	Der

VerifyOption

This is "nn::ssl::sf::VerifyOption". This is a bitmask.

Bit	Description
0	PeerCa
1	HostName
2	DateCheck
3	EvCertPartial
4	[6.0.0+] EvPolicyOid
5	[6.0.0+] EvCertFingerprint

Originally ssl-sysmodule (#SetVerifyOption) just wrote the input field to state. With [5.0.0+] there's now validation for the input, with the value written to state masked with {allowed bitmask}. When InterfaceVersion is >=0x2, the low 2-bits of VerifyOption must be set, unless {state flag for #OptionType value 2} is set or [9.0.0+] {bool DebugOption state flag} is set, otherwise an error is thrown. [6.0.0+]: Following that, if VerifyOption bit4 is set, then VerifyOption & 0x15 must match 0x15 otherwise an error is thrown.

IoMode

This is "nn::ssl::sf::IoMode" or "nn::ssl::Connection::IoMode".

Value	Description
1	Blocking
2	NonBlocking

PollEvent

This is "nn::ssl::sf::PollEvent" or "nn::ssl::Connection::PollEvent". This is a bitmask.

Bit	Description
0	Read
1	Write
2	Except

SessionCacheMode

This is "nn::ssl::sf::SessionCacheMode" or "nn::ssl::Connection::SessionCacheMode".

Value	Description
0	None
1	SessionId
2	SessionTicket

RenegotiationMode

This is "nn::ssl::sf::RenegotiationMode" or "nn::ssl::Connection::RenegotiationMode".

Value	Description
0	None
1	Secure

OptionType

This is "nn::ssl::sf::OptionType" or "nn::ssl::Connection::OptionType".

Value	Description
0	DoNotCloseSocket
1	[3.0.0+] GetServerCertChain
2	[5.0.0+] SkipDefaultVerify
3	[9.0.0+] EnableAlpn

This corresponds to bool flags.

"SkipDefaultVerify" is checked by SetVerifyOption and "EnableAlpn" is only available with SetOption.

AlpnProtoState

This is "nn::ssl::sf::AlpnProtoState" or "nn::ssl::Connection::AlpnProtoState".

Value	Description
0	NoSupport
1	Negotiated
2	NoOverlap
3	Selected
4	EarlyValue

CipherInfo

This is "nn::ssl::Connection::CipherInfo". This is a 0x48-byte struct.

Offset	Size	Description
0x0	0x40	Cipher string
0x40	0x8	Protocol version string

CertStore

This is the CertStore title, which contains the following files in RomFS:

• "/ssl_CaFingerprints.bdf"
• "/ssl_Crl.bdf"
• "/ssl_TrustedCerts.bdf"

On old system-versions, this only contains "/ssl_TrustedCerts.tcf", which seems to have the same format described below.

These have the following structure:

Offset	Size	Description
0x0	0x4	Magic "sslT"
0x4	0x4	Total entries
0x8	0x10*{total entries}	Array entries

Array entry structure:

Offset	Size	Description
0x0	0x4	Id
0x4	0x4	?
0x8	0x4	Data size
0xC	0x4	Data offset

Data offset is relative to absolute offset 0x8.

The ID is the same one used by service commands to access these entries. For ssl_TrustedCerts, ID is #CaCertificateId.

Client cert+privk

SSL-sysmodule uses set:cal GetSslKey and GetSslCert. The rest of this section documents handling for the former, which can be decrypted with SPL.

key* below refers to the 3 0x10-byte input blocks passed to this code.

When actual_size is:

• 0x100+0x10: If the u32 actual_size is less than (u32)-0x11, and the last 0x10-bytes of the actual-data are all-zero, the data is copied to the output as raw plaintext. If a non-zero byte is found, it will continue with SPL usage, skipping over the SPL block for the devunit flag. In this case, key=key0 and the flag passed to SPL later is set to 0.
• 0x100+0x30: Size must match this if it's not the above, otherwise error 0xC81A is returned. The flag passed to SPL later is set to 1 in this case. Runs the devunit-flag-block: uses SPL_services#SPL#GetDevunitFlag. key = key1 when out_flag!=0, key2 otherwise.