lkml.org 
[lkml]   [2023]   [Feb]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH net,v3,2/2] selftests: fib_tests: Add test cases for IPv4/IPv6 in route notify
From
Date

在 2023/2/22 11:20 AM, David Ahern 写道:
> On 2/21/23 9:20 PM, Lu Wei wrote:
>> @@ -655,6 +655,99 @@ fib_nexthop_test()
>> cleanup
>> }
>>
>> +fib6_notify_test()
>> +{
>> + setup
>> +
>> + echo
>> + echo "Fib6 info length calculation in route notify test"
>> + set -e
>> +
>> + for i in 10 20 30 40 50 60 70;
>> + do
>> + $IP link add dummy_$i type dummy
>> + $IP link set dev dummy_$i up
>> + $IP -6 address add 2001:$i::1/64 dev dummy_$i
>> + done
>> +
>> + $IP -6 route add 2001::/64 \
>> + nexthop encap ip6 dst 2002::10 via 2001:10::2 dev dummy_10 \
>> + nexthop encap ip6 dst 2002::20 via 2001:20::2 dev dummy_20 \
>> + nexthop encap ip6 dst 2002::30 via 2001:30::2 dev dummy_30 \
>> + nexthop encap ip6 dst 2002::40 via 2001:40::2 dev dummy_40 \
>> + nexthop encap ip6 dst 2002::50 via 2001:50::2 dev dummy_50 \
>> + nexthop encap ip6 dst 2002::60 via 2001:60::2 dev dummy_60
>
> I think you want the non-lwtunnel path to be first (it is the one
> assumed to have the same size as the remaining paths).
>
sorry, I did't get you point before, just wrote it as how syzbot
triggers.  In my syzbot, it is triggered

from  ip6_route_add()  instead of ip6_route_multipath_add().  I will
send another version, thank you.

>> +
>> + set +e
>> +
>> + $NS_EXEC ip monitor route &> errors.txt &
>> +
>> + sleep 2
>> + $IP -6 route append 2001::/64 via 2001:70::2 dev dummy_70
>> +
>> + err=`cat errors.txt |grep "Message too long"`
>> + if [ -z "$err" ];then
>> + ret=0
>> + else
>> + ret=1
>> + fi
>> +
>> + log_test $ret 0 "ipv6 route add notify"
>> +
>> + { kill %% && wait %%; } 2>/dev/null
>> +
>> + #rm errors.txt
>> +
>> + cleanup &> /dev/null
>> +}
>> +
>> +
>> +fib_notify_test()
>> +{
>> + setup
>> +
>> + echo
>> + echo "Fib4 info length calculation in route notify test"
>> +
>> + set -e
>> +
>> + for i in 10 20 30 40 50 60 70;
>> + do
>> + $IP link add dummy_$i type dummy
>> + $IP link set dev dummy_$i up
>> + $IP address add 20.20.$i.2/24 dev dummy_$i
>> + done
>> +
>> + $NS_EXEC ip monitor route &> errors.txt &
>> + sleep 2
>> +
>> + $IP route add 10.0.0.0/24 \
>> + nexthop encap ip dst 192.168.10.10 via 20.20.10.1 dev dummy_10 \
>> + nexthop encap ip dst 192.168.10.20 via 20.20.20.1 dev dummy_20 \
>> + nexthop encap ip dst 192.168.10.30 via 20.20.30.1 dev dummy_30 \
>> + nexthop encap ip dst 192.168.10.40 via 20.20.40.1 dev dummy_40 \
>> + nexthop encap ip dst 192.168.10.50 via 20.20.50.1 dev dummy_50 \
>> + nexthop encap ip dst 192.168.10.60 via 20.20.60.1 dev dummy_60 \
>> + nexthop via 20.20.70.1 dev dummy_70
> same here.
>
> .

--
Best Regards,
Lu Wei

\
 
 \ /
  Last update: 2023-03-27 00:32    [W:0.381 / U:0.152 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site