lwIP - A Lightweight TCP/IP stack - Bugs: bug #63898, Wrong socket option level for...

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bug #63898: Wrong socket option level for IPV6_CHECKSUM

Submitter:	Philipp Finke <philippfinke>
Submitted:	Thu 09 Mar 2023 10:37:16 AM UTC
Category:	sockets/netconn	Severity:	3 - Normal
Item Group:	Change Request	Status:	Fixed
Privacy:	Public	Assigned to:	goldsimon
Open/Closed:	Closed	Planned Release:	2.2.1
lwIP version:	2.1.3

Tue 10 Oct 2023 08:27:27 PM UTC, comment #2:  Fixed, thanks for reporting!	Simon Goldschmidt <goldsimon>
Tue 10 Oct 2023 06:56:01 PM UTC, comment #1:  Hm, Linux seems to allow this for both SOL_RAW and SOL_IPV6 (see https://elixir.bootlin.com/linux/v6.5/source/net/ipv6/raw.c). Both for backwards compatibility and compatibility to Linux, I'd do it that way, too.	Simon Goldschmidt <goldsimon>
Thu 09 Mar 2023 10:37:16 AM UTC, original submission:   In lwip_setsockopt_impl() and lwip_getsockopt_impl() the option IPV6_CHECKSUM is handled for socket option level IPPROTO_RAW. This is wrong in my opinion, as RFC 3542 section 3.1 (https://www.rfc-editor.org/rfc/rfc3542) clearly states in the example that this option belongs to level IPPROTO_IPV6.	Philipp Finke <philippfinke>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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