[Bug 260958] pfctl: expand_rule: strlcpy

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260958

Kristof Provost <kp@freebsd.org> changed:

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                 CC|                            |kp@freebsd.org

--- Comment #1 from Kristof Provost <kp@freebsd.org> ---
I can reproduce the error, but my current thinking is that this is a
misconfiguration rather than a bug in pf. (Although arguably the error message
could be better).

Note that reply-to expects to be followed by a routehost ('     routehost     
= "(" interface-name [ address [ "/" mask-bits ] ] ")"', which is supposed to
be an interface-name and optionally an address.

The pfctl parser code puts the string it finds after route-to in an ifname
field, which is IFNAMSIZ bytes long, so the IPv6 address you provide doesn't
fit and that's what produces the error message.

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