Re: [dnsdist] Is it possible to add an EDE to DNSAction.SpoofRaw ?

[Marco Davids (SIDN) via dnsdist]

Hi Remi,

Op 20-08-2024 om 09:26 schreef Remi Gacogne via dnsdist:

Have you tried calling dq:setExtendedDNSError(...) [1] before returning from the function? It should do what you want. >

[1]: https://dnsdist.org/reference/dq.html#DNSQuestion:setExtendedDNSError

So, for instance, this works fine:

-----
function luarule1(dq)
    dq:setExtendedDNSError(0, "Hello from luarule1")
    return DNSAction.None
end


-----

But when I try a SpoofRaw, it does not work:

-----
function luarule2(dq)
   local result = 'hello from luarule2'
   local strlen = string.char(#result)
   dq:setExtendedDNSError(4, "We fiddled around with this in luarule2")
   return DNSAction.SpoofRaw, strlen .. result
end


-----

The spoofed answer is returned, but without the EDE.

Still using:



(but hoping to update soon though)

Thanks!

--
𝓜𝓪𝓻𝓬𝓸

Sorry for the delay (and for the error in my luarule example), but I had some time to dive into this again and your suggestion does not work for me. It seems that the combination of EDE and SpoofRaw (which is what I want) is suboptimal. addAction(AndRule({QNameRule('example.nl.'), QClassRule(DNSClass.IN), QTypeRule(DNSQType.TXT)}), LuaAction(luarule1)) addAction(AndRule({QNameRule('example.nl.'), QClassRule(DNSClass.IN), QTypeRule(DNSQType.TXT)}), LuaAction(luarule2)) dnsdist 1.10.0-alpha0.1183.master.g5508d1039 (Lua 5.1.4 [LuaJIT 2.1.0-beta3])

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