[Babel-users] Babeld doesn't cleanup unreacheable route before stopping

[Gioacchino Mazzurco]

Stopping babeld 1.3.4 I was expecting it clean up the routing table
before stopping, but it is not happening

here you can see what happen


---------> The routing table while babeld is running <---------

zefiro ~ # ip -6 route show
2001:470:c8f7:ee:: via fe80::f4fa:7bff:fe8e:df20 dev babeld  proto 42
metric 1000
unreachable 2001:470:c8f7:ee:: dev lo  proto 42  metric -1  error -101
2001:470:c8f7:ee:ee::cee via fe80::f4fa:7bff:fe8e:df20 dev babeld  proto
42  metric 1000
unreachable 2001:470:c8f7:ee:ee::cee dev lo  proto 42  metric -1  error -101
2001:470:c8f7:ee:ee::1000 via fe80::f4fa:7bff:fe8e:df20 dev babeld
proto 42  metric 1000
unreachable 2001:470:c8f7:ee:ee::1000 dev lo  proto 42  metric -1  error
-101
2001:470:c8f7:ee:ee:15:6d7b:4cbc via fe80::f4fa:7bff:fe8e:df20 dev
babeld  proto 42  metric 1000
2001:470:c8f7:ee:ee:15:6d7b:4d21 via fe80::f4fa:7bff:fe8e:df20 dev
babeld  proto 42  metric 1000
2001:470:c8f7:ee:d48:b42c:d670:4fc via fe80::f4fa:7bff:fe8e:df20 dev
babeld  proto 42  metric 1000
2001:470:c8f7:ee::/64 via fe80::f4fa:7bff:fe8e:df20 dev babeld  proto 42
 metric 1000
unreachable 2001:470:c8f7:ee::/64 dev lo  proto 42  metric -1  error -101
2001:500:3::42 via 2001:1418:100:3ae::1 dev sixxs  proto 37  metric 1024
2001:1418:100:3ae::/64 dev sixxs  proto kernel  metric 256
unreachable 2001:1418:1a9:eeab::d1 dev lo  proto 42  metric -1  error -101
unreachable 2001:1418:1a9:eeab::112 dev lo  proto 42  metric -1  error -101
2001:1418:1a9:eeab::/64 dev bat0  proto kernel  metric 256
2001:1418:1a9:eebb::/64 dev batvpn  proto kernel  metric 256
fe80::/64 dev eth2  proto kernel  metric 256
fe80::/64 dev eth0  proto kernel  metric 256
fe80::/64 dev babeld  proto kernel  metric 256
fe80::/64 dev batvpn  proto kernel  metric 256
fe80::/64 dev sixxs  proto kernel  metric 256
fe80::/64 dev bat0  proto kernel  metric 256
ff00::/8 dev eth2  metric 256
ff00::/8 dev eth0  metric 256
ff00::/8 dev babeld  metric 256
ff00::/8 dev batvpn  metric 256
ff00::/8 dev sixxs  metric 256
ff00::/8 dev bat0  metric 256
default via 2001:1418:100:3ae::1 dev sixxs  proto 60  metric 1024






---------> Stopping babeld <---------





zefiro ~ # /etc/init.d/babeld stop
 * Stopping babeld ...

                             [ ok ]














---------> The routing table after babeld stopped you can see the
unreacheable route remained here <---------





zefiro ~ # ip route show
default via 131.114.250.1 dev eth0  src 131.114.251.236  metric 2
10.0.1.0/24 dev babeld  proto kernel  scope link  src 10.0.1.101
10.174.0.0/15 dev bat0  proto kernel  scope link  src 10.175.0.101
unreachable 10.174.0.100  proto 42  metric -1 onlink
unreachable 10.175.0.112  proto 42  metric -1 onlink


unreachable 10.180.0.0/15  proto 42  metric -1 onlink


127.0.0.0/8 via 127.0.0.1 dev lo


131.114.250.0/23 dev eth0  proto kernel  scope link  src 131.114.251.236


172.18.0.0/24 dev batvpn  proto kernel  scope link  src 172.18.0.1


zefiro ~ # ip -6 route show
unreachable 2001:470:c8f7:ee:: dev lo  proto 42  metric -1  error -101


unreachable 2001:470:c8f7:ee:ee::cee dev lo  proto 42  metric -1  error
-101

unreachable 2001:470:c8f7:ee:ee::1000 dev lo  proto 42  metric -1  error
-101

unreachable 2001:470:c8f7:ee::/64 dev lo  proto 42  metric -1  error -101
2001:503:ba3e::2:30 via 2001:1418:100:3ae::1 dev sixxs  proto 37  metric
1024
2001:1418:100:3ae::/64 dev sixxs  proto kernel  metric 256
unreachable 2001:1418:1a9:eeab::d1 dev lo  proto 42  metric -1  error -101
unreachable 2001:1418:1a9:eeab::112 dev lo  proto 42  metric -1  error -101
2001:1418:1a9:eeab::/64 dev bat0  proto kernel  metric 256
2001:1418:1a9:eebb::/64 dev batvpn  proto kernel  metric 256
fe80::/64 dev eth2  proto kernel  metric 256
fe80::/64 dev eth0  proto kernel  metric 256
fe80::/64 dev babeld  proto kernel  metric 256
fe80::/64 dev batvpn  proto kernel  metric 256
fe80::/64 dev sixxs  proto kernel  metric 256
fe80::/64 dev bat0  proto kernel  metric 256
ff00::/8 dev eth2  metric 256
ff00::/8 dev eth0  metric 256
ff00::/8 dev babeld  metric 256
ff00::/8 dev batvpn  metric 256
ff00::/8 dev sixxs  metric 256
ff00::/8 dev bat0  metric 256
default via 2001:1418:100:3ae::1 dev sixxs  proto 60  metric 1024












---------> As you can see here babeld is really stopped
/usr/sbin/babeld-route-share-daemon is just a bash script that add route
we wanna share with babeld only if they are reacheable for example
0.0.0.0/0 only if we can ping 8.8.8.8 <---------





zefiro ~ # ps ax | grep babel
 2322 ?        Ss     1:46 /usr/sbin/tincd --net=babeld  --pidfile
/var/run/tinc.babeld.pid
15901 ?        S      0:17 /bin/sh /usr/sbin/babeld-route-share-daemon start
16454 ?        S      0:00 /bin/sh /usr/sbin/babeld-route-share-daemon start
16491 pts/0    S+     0:00 grep --colour=auto babel












---------> babeld version info r3 mean just the gentoo package revision
<---------





zefiro ~ # emerge -s babeld
Searching...
[ Results for search key : babeld ]
[ Applications found : 2 ]

*  net-misc/babeld
      Latest version available: 1.3.4-r3
      Latest version installed: 1.3.4-r3
      Size of files: 63 kB
      Homepage:      http://www.pps.jussieu.fr/~jch/software/babel/
      Description:   a loop-free distance-vector routing protocol
      License:       MIT

*  net-misc/babeld-route-share
      Latest version available: 0.1-r1
      Latest version installed: 0.1-r1
      Size of files: 0 kB
      Homepage:      http://www.eigenlab.org/
      Description:   babeld safe route sharing tool
      License:       GPL-3

zefiro ~ #


what is happening?