git: ipfw3nat: kernel NAT without libalias

[Bill Yuan]

commit 936e3df8407a4355546904e5115a254b482c5f3a
Author: Bill Yuan <bycn82 at dragonflybsd.org>
Date:   Fri Apr 13 04:25:53 2018 +0000

    ipfw3nat: kernel NAT without libalias
    
    More than just one address can be configured in each NAT
    configuraton and each coming packet will be translated to
    one of these addresses randomly.
    
    e.g.
        ipfw3 nat 1 config ip 192.168.1.1 192.168.1.2
    
    A schedule will automatically purge the expired translations.
    and its interval can be configure via below sysctl variables.
        net.inet.ip.fw3_nat.udp_timeout
        net.inet.ip.fw3_nat.tcp_timeout
        net.inet.ip.fw3_nat.icmp_timeout

Summary of changes:
 sbin/ipfw3/ipfw3.8             |  47 +++-
 sbin/ipfw3/ipfw3nat.c          | 180 +++++--------
 sbin/ipfw3/ipfw3nat.h          |  20 +-
 sys/net/ipfw3_nat/ip_fw3_nat.c | 560 ++++++++++++++++++++++-------------------
 sys/net/ipfw3_nat/ip_fw3_nat.h |  81 +++---
 5 files changed, 468 insertions(+), 420 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/936e3df8407a4355546904e5115a254b482c5f3a


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