CVS commit: src/sys/dist/ipf/netinet

[Michael van Elst <mlelstv%netbsd.org@localhost>]

Module Name:    src
Committed By:   mlelstv
Date:           Sun Sep  5 12:36:46 UTC 2010

Modified Files:
        src/sys/dist/ipf/netinet: ip_fil_netbsd.c

Log Message:
Fix mbuf corruption when sending ICMP errors for blocked IPv6
packets due to wrong buffer size computations. The corrupted
mbufs could lead to a panic.

Fix computation of link mtu where the link mtu itself is unspecified.

Limit ICMP error packets for IPv6 to MMTU as required by RFC4443. This
also avoids dropped errors when the length exceeds the link mtu.


To generate a diff of this commit:
cvs rdiff -u -r1.55 -r1.56 src/sys/dist/ipf/netinet/ip_fil_netbsd.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.