CVS commit: src

["Ryota Ozaki" <ozaki-r%netbsd.org@localhost>]

Module Name:    src
Committed By:   ozaki-r
Date:           Mon Apr  4 07:37:08 UTC 2016

Modified Files:
        src/doc: CHANGES
        src/external/bsd/ipf/dist/ipsend: 44arp.c
        src/sbin/route: keywords.c keywords.h route.8 route.c rtutil.c show.c
        src/sbin/routed: table.c
        src/share/man/man4: route.4
        src/sys/net: if.c if_llatbl.c if_llatbl.h route.c route.h rtsock.c
        src/sys/netinet: if_arp.c if_atm.c in.c ip_carp.c
        src/sys/netinet6: icmp6.c in6.c ip6_input.c nd6.c nd6.h nd6_nbr.c
            nd6_rtr.c
        src/tests/net/arp: t_arp.sh
        src/tests/net/if: t_ifconfig.sh
        src/tests/net/ndp: t_ndp.sh
        src/tests/net/net: t_forwarding.sh t_ipaddress.sh
        src/tests/net/route: t_flags.sh t_route.sh
        src/usr.bin/netstat: route.c
        src/usr.sbin/arp: arp.4 arp.c
        src/usr.sbin/ldpd: mpls_routes.c
        src/usr.sbin/ndp: ndp.c
        src/usr.sbin/rarpd: mkarp.c
        src/usr.sbin/route6d: route6d.c

Log Message:
Separate nexthop caches from the routing table

By this change, nexthop caches (IP-MAC address pair) are not stored
in the routing table anymore. Instead nexthop caches are stored in
each network interface; we already have lltable/llentry data structure
for this purpose. This change also obsoletes the concept of cloning/cloned
routes. Cloned routes no longer exist while cloning routes still exist
with renamed to connected routes.

Noticeable changes are:
- Nexthop caches aren't listed in route show/netstat -r
  - sysctl(NET_RT_DUMP) doesn't return them
  - If RTF_LLDATA is specified, it returns nexthop caches
- Several definitions of routing flags and messages are removed
  - RTF_CLONING, RTF_XRESOLVE, RTF_LLINFO, RTF_CLONED and RTM_RESOLVE
- RTF_CONNECTED is added
  - It has the same value of RTF_CLONING for backward compatibility
- route's -xresolve, -[no]cloned and -llinfo options are removed
  - -[no]cloning remains because it seems there are users
  - -[no]connected is introduced and recommended
    to be used instead of -[no]cloning
- route show/netstat -r drops some flags
  - 'L' and 'c' are not seen anymore
  - 'C' now indicates a connected route
- Gateway value of a route of an interface address is now not
  a L2 address but "link#N" like a connected (cloning) route
- Proxy ARP: "arp -s ... pub" doesn't create a route

You can know details of behavior changes by seeing diffs under tests/.

Proposed on tech-net and tech-kern:
  http://mail-index.netbsd.org/tech-net/2016/03/11/msg005701.html


To generate a diff of this commit:
cvs rdiff -u -r1.2147 -r1.2148 src/doc/CHANGES
cvs rdiff -u -r1.1.1.1 -r1.2 src/external/bsd/ipf/dist/ipsend/44arp.c
cvs rdiff -u -r1.10 -r1.11 src/sbin/route/keywords.c
cvs rdiff -u -r1.13 -r1.14 src/sbin/route/keywords.h
cvs rdiff -u -r1.55 -r1.56 src/sbin/route/route.8
cvs rdiff -u -r1.153 -r1.154 src/sbin/route/route.c
cvs rdiff -u -r1.7 -r1.8 src/sbin/route/rtutil.c
cvs rdiff -u -r1.49 -r1.50 src/sbin/route/show.c
cvs rdiff -u -r1.24 -r1.25 src/sbin/routed/table.c
cvs rdiff -u -r1.25 -r1.26 src/share/man/man4/route.4
cvs rdiff -u -r1.327 -r1.328 src/sys/net/if.c
cvs rdiff -u -r1.10 -r1.11 src/sys/net/if_llatbl.c
cvs rdiff -u -r1.8 -r1.9 src/sys/net/if_llatbl.h
cvs rdiff -u -r1.157 -r1.158 src/sys/net/route.c
cvs rdiff -u -r1.97 -r1.98 src/sys/net/route.h
cvs rdiff -u -r1.177 -r1.178 src/sys/net/rtsock.c
cvs rdiff -u -r1.203 -r1.204 src/sys/netinet/if_arp.c
cvs rdiff -u -r1.36 -r1.37 src/sys/netinet/if_atm.c
cvs rdiff -u -r1.164 -r1.165 src/sys/netinet/in.c
cvs rdiff -u -r1.62 -r1.63 src/sys/netinet/ip_carp.c
cvs rdiff -u -r1.181 -r1.182 src/sys/netinet6/icmp6.c
cvs rdiff -u -r1.197 -r1.198 src/sys/netinet6/in6.c
cvs rdiff -u -r1.157 -r1.158 src/sys/netinet6/ip6_input.c
cvs rdiff -u -r1.187 -r1.188 src/sys/netinet6/nd6.c
cvs rdiff -u -r1.71 -r1.72 src/sys/netinet6/nd6.h
cvs rdiff -u -r1.114 -r1.115 src/sys/netinet6/nd6_nbr.c
cvs rdiff -u -r1.107 -r1.108 src/sys/netinet6/nd6_rtr.c
cvs rdiff -u -r1.13 -r1.14 src/tests/net/arp/t_arp.sh
cvs rdiff -u -r1.7 -r1.8 src/tests/net/if/t_ifconfig.sh
cvs rdiff -u -r1.9 -r1.10 src/tests/net/ndp/t_ndp.sh
cvs rdiff -u -r1.11 -r1.12 src/tests/net/net/t_forwarding.sh
cvs rdiff -u -r1.1 -r1.2 src/tests/net/net/t_ipaddress.sh
cvs rdiff -u -r1.3 -r1.4 src/tests/net/route/t_flags.sh \
    src/tests/net/route/t_route.sh
cvs rdiff -u -r1.84 -r1.85 src/usr.bin/netstat/route.c
cvs rdiff -u -r1.10 -r1.11 src/usr.sbin/arp/arp.4
cvs rdiff -u -r1.54 -r1.55 src/usr.sbin/arp/arp.c
cvs rdiff -u -r1.23 -r1.24 src/usr.sbin/ldpd/mpls_routes.c
cvs rdiff -u -r1.46 -r1.47 src/usr.sbin/ndp/ndp.c
cvs rdiff -u -r1.10 -r1.11 src/usr.sbin/rarpd/mkarp.c
cvs rdiff -u -r1.67 -r1.68 src/usr.sbin/route6d/route6d.c

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