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selftests: forwarding: Add suppport to create veth interfaces 

For tests using veth interfaces, the test infrastructure can create
the netdevs if they do not exist. Arguably this is a preferred approach
since the tests require p$N and p$(N+1) to be pairs.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-03-04 17:37:47 -08:00 committed by David S. Miller
parent 955dc68cb9
commit 190f887c3c
2 changed files with 40 additions and 0 deletions
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5
tools/testing/selftests/net/forwarding/forwarding.config.sample
View File

@ -14,6 +14,11 @@ NETIFS[p6]=veth5
NETIFS[p7]=veth6
NETIFS[p8]=veth7
NETIF_TYPE=veth
# only virtual interfaces (veth) can be created by test infra
#NETIF_CREATE=yes
##############################################################################
# Defines

35
tools/testing/selftests/net/forwarding/lib.sh
View File

@ -76,6 +76,41 @@ done
##############################################################################
# Network interfaces configuration
create_netif_veth()
{
local i
for i in $(eval echo {1..$NUM_NETIFS}); do
local j=$((i+1))
ip link show dev ${NETIFS[p$i]} &> /dev/null
if [[ $? -ne 0 ]]; then
ip link add ${NETIFS[p$i]} type veth \
peer name ${NETIFS[p$j]}
if [[ $? -ne 0 ]]; then
echo "Failed to create netif"
exit 1
fi
fi
i=$j
done
}
create_netif()
{
case "$NETIF_TYPE" in
veth) create_netif_veth
;;
*) echo "Can not create interfaces of type \'$NETIF_TYPE\'"
exit 1
;;
esac
}
if [[ "$NETIF_CREATE" = "yes" ]]; then
create_netif
fi
for i in $(eval echo {1..$NUM_NETIFS}); do
ip link show dev ${NETIFS[p$i]} &> /dev/null
if [[ $? -ne 0 ]]; then