tree af5a7ade751925773bf6394584969014662dc8ac
parent 6b5771aa3c351b118b1eee7bc98e1483eb0c8ca8
author Ursula Braun <ubraun@linux.vnet.ibm.com> 1512650329 +0100
committer David S. Miller <davem@davemloft.net> 1512676992 -0500

smc: support variable CLC proposal messages

According to RFC7609 [1] the CLC proposal message contains an area of
unknown length for future growth. Additionally it may contain up to
8 IPv6 prefixes. The current version of the SMC-code does not
understand CLC proposal messages using these variable length fields and,
thus, is incompatible with SMC implementations in other operating
systems.

This patch makes sure, SMC understands incoming CLC proposals
* with arbitrary length values for future growth
* with up to 8 IPv6 prefixes

[1] SMC-R Informational RFC: http://www.rfc-editor.org/info/rfc7609

Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Hans Wippel <hwippel@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>