Re: [PROBLEM] selftests: net/forwarding/*.sh: 'Command line is not complete. Try option "help"'
From: Mirsad Todorovac
Date: Tue Jul 18 2023 - 14:39:57 EST
On 7/18/23 20:19, Mirsad Todorovac wrote:
On 7/18/23 09:22, Ido Schimmel wrote:
On Mon, Jul 17, 2023 at 10:51:04PM +0200, Mirsad Todorovac wrote:
Tests fail with error message:
Command line is not complete. Try option "help"
Failed to create netif
The script
# tools/testing/seltests/net/forwarding/bridge_igmp.sh
bash `set -x` ends with an error:
++ create_netif_veth
++ local i
++ (( i = 1 ))
++ (( i <= NUM_NETIFS ))
++ local j=2
++ ip link show dev
++ [[ 255 -ne 0 ]]
++ ip link add type veth peer name
Command line is not complete. Try option "help"
++ [[ 255 -ne 0 ]]
++ echo 'Failed to create netif'
Failed to create netif
++ exit 1
The problem seems to be linked with this piece of code of "lib.sh":
create_netif_veth()
{
local i
for ((i = 1; i <= NUM_NETIFS; ++i)); 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
}
Somehow, ${NETIFS[p$i]} is evaluated to an empty string?
You need to provide a configuration file in
tools/testing/selftests/net/forwarding/forwarding.config. See
tools/testing/selftests/net/forwarding/forwarding.config.sample for
example.
Another option is to provide the interfaces on the command line.
./bridge_igmp.sh veth0 veth1 veth2 veth3
If no configuration file is present, we can try to assume that the
tests are meant to be run with veth pairs and not with physical
loopbacks. Something like:
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 71f7c0c49677..5b0183013017 100755
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -16,8 +16,6 @@ TEAMD=${TEAMD:=teamd}
WAIT_TIME=${WAIT_TIME:=5}
PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
PAUSE_ON_CLEANUP=${PAUSE_ON_CLEANUP:=no}
-NETIF_TYPE=${NETIF_TYPE:=veth}
-NETIF_CREATE=${NETIF_CREATE:=yes}
MCD=${MCD:=smcrouted}
MC_CLI=${MC_CLI:=smcroutectl}
PING_COUNT=${PING_COUNT:=10}
@@ -30,6 +28,20 @@ REQUIRE_MZ=${REQUIRE_MZ:=yes}
REQUIRE_MTOOLS=${REQUIRE_MTOOLS:=no}
STABLE_MAC_ADDRS=${STABLE_MAC_ADDRS:=no}
TCPDUMP_EXTRA_FLAGS=${TCPDUMP_EXTRA_FLAGS:=}
+NETIF_TYPE=${NETIF_TYPE:=veth}
+NETIF_CREATE=${NETIF_CREATE:=yes}
+declare -A NETIFS=(
+ [p1]=veth0
+ [p2]=veth1
+ [p3]=veth2
+ [p4]=veth3
+ [p5]=veth4
+ [p6]=veth5
+ [p7]=veth6
+ [p8]=veth7
+ [p9]=veth8
+ [p10]=veth9
+)
relative_path="${BASH_SOURCE%/*}"
if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then
This patch appears to work for the first testing script
root@defiant:# ./bridge_igmp.sh
TEST: IGMPv2 report 239.10.10.10 [ OK ]
TEST: IGMPv2 leave 239.10.10.10 [ OK ]
TEST: IGMPv3 report 239.10.10.10 is_include [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> allow [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> is_include [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> is_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> to_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> allow [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> is_include [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> is_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> to_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> block [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> block [ OK ]
TEST: IGMPv3 group 239.10.10.10 exclude timeout [ OK ]
TEST: IGMPv3 S,G port entry automatic add to a *,G port [ OK ]
root@defiant:#
However, I suggest setting tools/testing/selftest/net/forwarding/settings:timeout=150 at least,
because default 45 is premature on my box and it leaves the networking system in an undefined
state upon exit.
There is also a gotcha here: you do not delete all veths:
root@defiant:# ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp16s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 9c:6b:00:01:fb:80 brd ff:ff:ff:ff:ff:ff
root@defiant:# ./bridge_igmp.sh
TEST: IGMPv2 report 239.10.10.10 [ OK ]
TEST: IGMPv2 leave 239.10.10.10 [ OK ]
TEST: IGMPv3 report 239.10.10.10 is_include [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> allow [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> is_include [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> is_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> to_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> allow [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> is_include [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> is_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> to_exclude [ OK ]
TEST: IGMPv3 report 239.10.10.10 include -> block [ OK ]
TEST: IGMPv3 report 239.10.10.10 exclude -> block [ OK ]
TEST: IGMPv3 group 239.10.10.10 exclude timeout [ OK ]
TEST: IGMPv3 S,G port entry automatic add to a *,G port [ OK ]
root@defiant:# ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp16s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 9c:6b:00:01:fb:80 brd ff:ff:ff:ff:ff:ff
3: veth1@veth0: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
link/ether b6:46:e6:4c:e4:00 brd ff:ff:ff:ff:ff:ff
4: veth0@veth1: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
link/ether 2e:ff:7f:8a:6b:d4 brd ff:ff:ff:ff:ff:ff
5: veth3@veth2: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
link/ether ba:33:37:81:dc:5b brd ff:ff:ff:ff:ff:ff
6: veth2@veth3: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
link/ether f2:fd:0a:9b:94:17 brd ff:ff:ff:ff:ff:ff
root@defiant:#
Also, I ran into problems with some other tests, but for documentation sake
I will address the issue in a separate thread.
Best regards,
Mirsad Todorovac