CVS commit: src/sys

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Fri Jan 26 07:49:15 UTC 2018

Modified Files:
        src/sys/net: if_l2tp.c
        src/sys/netinet: in_l2tp.c
        src/sys/netinet6: in6_l2tp.c

Log Message:
Several fixes in L2TP:

 * l2tp_input(): use m_copydata, and ensure there is enough space in the
   chain. Otherwise overflow.

 * l2tp_tcpmss_clamp(): ensure there is enough space in the chain.

 * in_l2tp_output(): don't check 'sc' against NULL, it can't be NULL.

 * in_l2tp_input(): no need to call m_pullup since we use m_copydata.
   Just check the space in the chain.

 * in_l2tp_input(): if there is a cookie, make sure the chain has enough
   space.

 * in6_l2tp_input(): same changes as in_l2tp_input().

Ok knakahara@


To generate a diff of this commit:
cvs rdiff -u -r1.18 -r1.19 src/sys/net/if_l2tp.c
cvs rdiff -u -r1.11 -r1.12 src/sys/netinet/in_l2tp.c
cvs rdiff -u -r1.13 -r1.14 src/sys/netinet6/in6_l2tp.c

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