[PATCH] selftests: net: add missing NFT_FWD_NETDEV to config

[PATCH] selftests: net: add missing NFT_FWD_NETDEV to config

[Anders Roxell]

When running xfrm_policy.sh we see the following

 # sysctl cannot stat /proc/sys/net/ipv4/conf/eth1/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv4/conf/eth1/forwarding #
 # sysctl cannot stat /proc/sys/net/ipv4/conf/veth0/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv4/conf/veth0/forwarding #
 # sysctl cannot stat /proc/sys/net/ipv4/conf/eth1/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv4/conf/eth1/forwarding #
 # sysctl cannot stat /proc/sys/net/ipv4/conf/veth0/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv4/conf/veth0/forwarding #
 # sysctl cannot stat /proc/sys/net/ipv6/conf/eth1/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv6/conf/eth1/forwarding #
 # sysctl cannot stat /proc/sys/net/ipv6/conf/veth0/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv6/conf/veth0/forwarding #
 # sysctl cannot stat /proc/sys/net/ipv6/conf/eth1/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv6/conf/eth1/forwarding #
 # sysctl cannot stat /proc/sys/net/ipv6/conf/veth0/forwarding No such file or directory
 cannot: stat_/proc/sys/net/ipv6/conf/veth0/forwarding #
 # modprobe FATAL Module ip_tables not found in directory /lib/modules/5.3.0-rc5-next-20190820+
 FATAL: Module_ip_tables #
 # iptables v1.6.2 can't initialize iptables table `filter' Table does not exist (do you need to insmod?)
 v1.6.2: can't_initialize #

Rework to enable CONFIG_NF_TABLES_NETDEV and CONFIG_NFT_FWD_NETDEV.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 tools/testing/selftests/net/config | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
index b8503a8119b0..e30b0ae5d474 100644
--- a/tools/testing/selftests/net/config
+++ b/tools/testing/selftests/net/config
@@ -29,3 +29,5 @@ CONFIG_NET_SCH_FQ=m
 CONFIG_NET_SCH_ETF=m
 CONFIG_TEST_BLACKHOLE_DEV=m
 CONFIG_KALLSYMS=y
+CONFIG_NF_TABLES_NETDEV=y
+CONFIG_NFT_FWD_NETDEV=m
-- 
2.20.1

Re: [PATCH] selftests: net: add missing NFT_FWD_NETDEV to config

[David Miller]

From: Anders Roxell <anders.roxell@linaro.org>
Date: Tue, 20 Aug 2019 15:41:02 +0200

> When running xfrm_policy.sh we see the following
> 
>  # sysctl cannot stat /proc/sys/net/ipv4/conf/eth1/forwarding No such file or directory
>  cannot: stat_/proc/sys/net/ipv4/conf/eth1/forwarding #

I don't understand how a netfilter config options is going to make that
generic ipv4 protocol per-device sysctl appear.

If it's unrelated to your change, don't include it in the commit message
as it is confusing.

Thank you.