K 10
svn:author
V 6
jlemon
K 8
svn:date
V 27
2001-02-23T20:51:46.000000Z
K 7
svn:log
V 558
Allow ICMP unreachables which map into PRC_UNREACH_ADMIN_PROHIB to
reset TCP connections which are in the SYN_SENT state, if the sequence
number in the echoed ICMP reply is correct.  This behavior can be
controlled by the sysctl net.inet.tcp.icmp_may_rst.

Currently, only subtypes 2,3,10,11,12 are treated as such
(port, protocol and administrative unreachables).

Assocaiate an error code with these resets which is reported to the
user application: ENETRESET.

Disallow resetting TCP sessions which are not in a SYN_SENT state.

Reviewed by: jesper, -net

END