Re: Fwd: RFC3261 rules

Hi
Inside Sanity module there is a
Function
  sanity_reply()
which should send a reply with a reason  why sanity failed

May be useful as well


*Antony*
[email protected]



сб, 31 трав. 2025 р. о 09:50 Sergey Safarov via sr-users <
[email protected]> пише:

> Could you look at the attached PCAP with OPTIONS message. When OPTIONS
> message is received, then Kamailio generates error logs like
>
> dropping insane message from 10.140.6.38:60083
>
> After checking the PCAP, I see extra %x00 characters after the OPTIONS
> message in the same UDP frame.
> Example
> [image: image.png]
>
> I have checked RFC3261 and do not see a definition of "x00" chars.
> Also in the same RFC, present a reference to the RFC2234
> <https://datatracker.ietf.org/doc/html/rfc2234> where is described "space
> chars", "white space". According to RFC2223, char %x00 cannot be treated as
> "space" and should be treated as control (CTL) char.
> Also, RFC3261 does not use "CTL" chars.
>
> Using these two RFC, I can conclude, OPTIONS in the attached PCAP breaks
> RFC requirements, and we can request partner fix this issue on their
> equipment.
>
> Is anything else in the RFC can be used to justify that the given examples
> of OPTIONS messages violate RFCs?
>
> Sergey
>
>
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