The past month I'm working on IPv6 ready test on an embedded linux platform.
Since the kernel is really old 2.6.10 and I have to do some porting from newer kernel to get IPv6 ready test pass. Last week I finally all pass and below are some tips.
1.The test node (TN) is FreeBSD 7.4 release with v6eval-3.3.2 / v6eval-remotes-3.0 / Self_Test_5.0.0
It's very important that to disable ipv6 autoconfiguration on TN, because the testing suit needs clean ipv6 environment.
To disable ipv6 autoconfiguration, edit /etc/rc.conf and set
ipv6_enable="NO"
then after TN boot, the ipv6 link local address (fe80:X) won't be exist.
2./usr/local/v6eval/etc/tn.def
#
# tn.def
#
# Information about the Tester Node (TN)
#
#
# Remote Controal Configuration
#
RemoteDevice cuad0
RemoteDebug 0
RemoteIntDebug 0
RemoteLog 1
RemoteSpeed 0
RemoteLogout 0
RemoteMethod serial
#filter ipv6
#linkname interface BOGUS ether source address
# name of the Tester Interface
Link0 rl0 00:00:00:00:01:00
#Link1 de1 00:00:00:00:01:01
#Link2 de2 00:00:00:00:01:02
#Link3 de4 00:00:00:00:01:03
3./usr/local/v6eval/etc/nut.def
#
# nut.def
#
# Information about the Node Under Test (NUT)
#
# System type
System linux-v6
# System information
TargetName FreeBSD/i386 4.9-RELEASE + kame-20040726-freebsd49-snap
# Name
HostName HL200
# Type
# host, router, special
Type host
# Super user name and it's password
# if you select manual as "System", you don't care "User" and "Password"
#
User root
Password 1234
#linkname interface The EXACT ether source address
# name of the Interface Under Test
Link0 eth0 00:AE:45:BC:84:1E
#Link0 eth0 00:60:37:c0:ff:ee
#Link1 fxp1 00:00:92:a7:6d:f6
#Link2 de0 00:c0:f6:b0:aa:ef
#Link3 de1 00:00:92:a7:6d:f8
#Link4 de2 00:90:27:14:ce:e3
4./usr/local/lib/perl5/site_perl/5.10.1/V6evalRemote.pm
This file is really important for self test. It makes the TN to communicate NUT through serial RS232 port. TN can login / logout NUT system even more reboot NUT.
So, find key words below in this file and get it right
$Type="linux-v6";
$Device="cuad0";
$User="root";
$Password="1234";
The TN will detect message from NUT to login / logout. For example "login: " and "Password: ". Also get it right for your NUT's Behavior
# login prompt
%prompt_user = (
...
'linux-v6', 'login: ',
...
);
# password prompt
%prompt_password = (
...
'linux-v6', 'Password: ',
...
);
# command prompt
%prompt_command = (
...
'linux-v6', '(\$|#) ',
...
);
and so on
5.Test TN <-RS232-> NUT
If you can see login screen or promopt, it works
touch /var/log/aculog
chown uucp:dialer /var/log/aculog
chmod 660 /var/log/aculog
cu -l /dev/cuad0
Connected
[root@HL200 ~]$
6.Remote test
To test if TN can login then logout NUT
/usr/local/v6eval/bin/linux-v6/loginout.rmt -o1
HL200 login: root
Password:
BusyBox v1.2.2 (2011.07.20-06:33+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
[root@HL200 ~]$
[root@HL200 ~]$ exit
7.Run self test
cd Self_Test_5-0-0
make clean
make ipv6ready_p2_host
8.Run parts of self test
There are 5 test sections, you can test separated.
cd nd.p2/
make clean
make ipv6ready_p2_host
Also can test only few items, for example test items 10 to 20
make AROPT="-s 10 -e 20" ipv6ready_p2_host
9.Embedded linux setup.
There are some sysctl for ipv6 need to be set correct.
echo 0 > /proc/sys/net/ipv6/conf/default/forwarding
echo 2 > /proc/sys/net/ipv6/conf/default/dad_transmits
echo 1 > /proc/sys/net/ipv6/conf/default/use_tempaddr
echo 2 > /proc/sys/net/ipv6/conf/default/accept_dad
echo 1 > /proc/sys/net/ipv6/conf/default/optimistic_dad
echo 1 > /proc/sys/net/ipv6/conf/default/accept_redirects
Remember to set promisc and allmulti to ethernet port.
Another tip is to sleep 10 seconds after the ethernet up then go login screen
ip -6 link set lo up
#ip -6 link set eth0 up
ifconfig eth0 up promisc allmulti
echo "Wait 10 secs..."
sleep 10
10.Finally, fix /usr/local/v6eval/bin/unknown/ping6.rmt
########################################################################
use V6evalRemote;
rOpen() || goto error;
$NUTif = $rOpt_if;
$dstaddress = $rOpt_addr;
$rOpt_timeout = 5 if ! defined $rOpt_timeout;
if($rOpt_size < 1) {
$rOpt_size = 2;
}
$pingpath = "ping6";
$pingopt = "-n -c 1 -i 1 -s $rOpt_size -p 00 -w 2 -M want";
$ifopt = "-I $NUTif" if $NUTif ne "";
rLogin($rOpt_timeout) || goto error;
rCommand("$pingpath $pingopt $ifopt $dstaddress", 15) || goto error;
rLogout($rOpt_timeout) || goto error;
rClose();
exit($V6evalRemote::exitPass);
error:
rClose();
exit($V6evalRemote::exitFail);
########################################################################
