We were off by a value of 15. This fixes it. Hard to come up with a test
as writing and reading it yourself will be consistent.
Don't allows extended rcodes smaller than 16. And fix the tests as well.
This fixes bugs in MB and CNAME.copy() (using sprintName for copying),
IPSECKEY (missed copyIP) and OPT (partially, Options was not copied as
slice; EDNS0 objects themselves are still pointers).
This process probably fixes a bug in NSAPPTR.len(), after a similar one was
found in HINFO.len().
This should also make it easier to make changes to these functions, and
check their correctness.
Generate the code by running "go generate".
Added some more symmetric sanity checks when packing and unpacking, and
simplified the logic a bit, which should still remain mostly unchanged and
incomplete. A complete implementation of the draft would require context
about whether it's a request or reply and possibly from the request
corresponding to the reply (!£$!@$!) so screw it.
A handful of EDNS options have been standardized, and they each have a type defined in GoDNS. However there is currently no way a development team can use GoDNS with internally defined options, or with new options that may be proposed in the future.
This change solves the problem by giving users an EDNS0_CUSTOM type to allow clients to send, and servers to receive, custom EDNS options.
Original text: (in Dutch)
Ik kreeg crashes (index out of range) in het parsen van een EDNS0_LLQ
optie, doordat de method: 'func (e *EDNS0_LLQ) unpack(b []byte)' een
byte slice van 1 byte groot kreeg waar dan meerdere uint16's uit gelezen
werden.
The "other" edns0 option will then become LONG_LIVED_QUERIES which
is way to long to be practical, so I want to make it LLQ, UPDATE_LEASE
then needs to be come UL.
This will probably impact no-one, because noone uses this (I hope)
OpenDNS returns SERVFAIL to the client if the address in the EDNS packet
is too long. The spec says to truncate it to the shortest possible address
when the SourceNetmask is applied.
McStork
Miek Gieben
Filippo Valsorda
Harvo Jones
Catalin Patulea
Pieter de Boer
Andrew Tunnell-Jones
Ask Bjørn Hansen