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ipsec: Handle ICMP NEEDFRAG message.

Description

ipsec: Handle ICMP NEEDFRAG message.

It will be needed for upcoming PMTU implementation in ipsec.
For now simply create/update an entry in tcp hostcache when needed.
The code is based on https://people.freebsd.org/~ae/ipsec_transport_mode_ctlinput.diff

Authored by: Kornel Duleba <mindal@semihalf.com>
Differential revision: https://reviews.freebsd.org/D30992
Reviewed by: tuxen
Sponsored by: Stormshield
Obtained from: Semihalf

Details

Provenance
wmaAuthored on Aug 9 2021, 10:01 AM
Differential Revision
D30992: ipsec: Handle ICMP NEEDFRAG message.
Parents
R10:a8d54fc903cc: ipv6: Fix getsockopt() for some IPPROTO_IPV6 level socket options
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