K 10
svn:author
V 4
zlei
K 8
svn:date
V 27
2023-09-06T04:54:32.509520Z
K 7
svn:log
V 874
tcp: Initialize the maximum number of entries in a client cookie cache bucket

This vnet loader tunable is defined with SYSCTL_PROC, thus will not be
initialized by kernel on vnet creating and will always have the default
value TCP_FASTOPEN_CCACHE_BUCKET_LIMIT_DEFAULT.

Fix by fetching the value from the corresponding kernel environment during
vnet constructing.

PR:		273509
Reviewed by:	#transport, tuexen
Fixes:	c560df6f12f1 This is an implementation of the client side of TCP Fast Open (TFO) [RFC7413]
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D41691

(cherry picked from commit 224aec05e732bb97a0d3c91142973b98a91238d1)
(cherry picked from commit 144851777edad9522390036d3073ea656d7b648d)
(cherry picked from commit 3fc299d68897a0748d96510de5f191f5a8249216)

Git Hash:   aadedc5b3e4b360513f2a950135059ca01035202
Git Author: zlei@FreeBSD.org
END