44 lines
1.1 KiB
Markdown
44 lines
1.1 KiB
Markdown
# Introduction
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`INF` is a command introduced with [MSNP2](../versions/msnp2.md).
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It is a Dispatch Server and Notification Server command, without either a request or response payload.
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It specifies which authentication methods the client is allowed to use.
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This command can only be sent once.
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Any further uses of this command in the same session is Undefined Behaviour.
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# Client/Request
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`INF TrID`
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# Server/Response
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`INF TrID security-package {security-package ...}`
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Where (unlikely multiple) `security-package` parameters being the avaliable authentication methods your client is allowed to use.
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# Examples
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## Two types supported
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*This configuration is only supported in [MSNP2](../versions/msnp2.md).*
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```
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C: INF 1
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S: INF 1 MD5 CTP
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```
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## One type supported
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```
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C: INF 2
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S: INF 2 MD5
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```
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## Command removed
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*Since [MSNP8](../versions/msnp8.md).*
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```
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C: INF 3
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```
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Server disconnects client.
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# Known changes
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* [MSNP3](../versions/msnp3.md): Removed `CTP` support.
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* [MSNP8](../versions/msnp8.md). Removed. [USR](usr.md) always assumes the authentication method is `TWN`.
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