net: ipv6/addrconf: ensure that regen_advance is at least 2 seconds

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RFC 8981 defines REGEN_ADVANCE as follows:

REGEN_ADVANCE = 2 + (TEMP_IDGEN_RETRIES * DupAddrDetectTransmits * RetransTimer / 1000)

Thus, allowing it to be less than 2 seconds is technically a protocol
violation.

Link: https://datatracker.ietf.org/doc/html/rfc8981#name-defined-protocol-parameters
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Alex Henrie 2024-02-13 23:26:30 -07:00 • committed by Paolo Abeni

parent ea578703b0

commit 2aa8f155b0

2 changed files with 11 additions and 8 deletions

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4

Documentation/networking/ip-sysctl.rst

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15

net/ipv6/addrconf.c

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